CN107744418A - Conduit with hydraulic actuator and locking system - Google Patents
Conduit with hydraulic actuator and locking system Download PDFInfo
- Publication number
- CN107744418A CN107744418A CN201711155958.8A CN201711155958A CN107744418A CN 107744418 A CN107744418 A CN 107744418A CN 201711155958 A CN201711155958 A CN 201711155958A CN 107744418 A CN107744418 A CN 107744418A
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- China
- Prior art keywords
- tubular member
- outer tubular
- seal
- actuator means
- tube shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2002/9505—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of conduit, the conduit include the pressure chamber limited by proximal seal and distal seal and inner tubular member and outer tubular member.The actuator means that can be moved between the first location and the second location are arranged in the pressure chamber.The applying power in the actuator means of the fluid in the pressure chamber is introduced into, the actuator means are shifted into the second place.The locking mechanism being arranged between inner tubular member and outer tubular member includes lock bolt, and the lock bolt includes preventing the engagement state that the outer tubular member moves relative to the inner member and the disengaged position for allowing the outsourcing piece to move.When the actuator means are moved on into the second place, the latch displacement to the disengaged position.When the actuator means are in the second place and the lock bolt is under disengaged position, by the fluid flow port is introduced into and is incorporated into the pressure chamber fluid in the proximal seal applying power, to actuate the outer tubular member to nearside.
Description
Technical field
Disclosed theme is related to the tube chamber system for treating patient for delivering the medical treatment devices such as self-expandable stent to be used for
The conduit of system.Specifically, disclosed theme is related to the delivering with the regracting formula pipe sheath moved by hydraulic actuator and led
Pipe.
Background technology
It is known to there are a variety of systems using regracting formula pipe sheath to be used for endoluminal delivery medical treatment device, such as, support or
Filter screen.It remains desirable, however, that update this known delivery system.
An example of this system, the patent are described in Wilson et al. U.S. Patent No. 6,425,898
It is herein incorporated by reference herein, wherein, there is provided a kind of delivery system with inner member, the inner member is with being attached to
The retainer of component.During expansion, retainer prevents support during pipe sheath is retracted to deploy support on nearside
It is mobile.
Conventional self-expandable stent delivery system generally comprises handle portion and slender axles, wherein, support is arranged in axle
Distal end delivery portion in.In order to deploy support, there is provided outer tube sheath, the outer tube sheath can retract relative to support, with from branch
The delivering configuration releases clamp of frame.The total length of the general mutual conductance pipe of pipe sheath in such systems, so as to cause in the whole of conduit
Profile and rigidity increase in length.Some applications can be restricted in this rigidity of the far-end of conduit and increased profile,
Such as, the nerve and other indications of particular size limitation.In addition, because the total length of pipe sheath mutual conductance pipe, passing through patient
Roundabout tube chamber system during, risk increase that the miscellaneous part of pipe sheath and conduit bonds thereby inhibiting the expansion of support.
Another problem of this delivery system is that pipe sheath inputs generally according to user（Power）In 1:1 ratio retracts.
Because support may be embedded in outer tube sheath due to larger static friction during storage and transport, usually require that
Substantial amounts of initial input carrys out releases clamp, and this may cause the placement of mistake.When initial releases clamp, pipe sheath is slowly retracted
Realize that it is probably desirable correctly to place and then pipe sheath is retracted, to prevent the accidental movement of support.
In addition, make pipe sheath（The especially length support longer than length needed for the indication of periphery）Retract needed for power it is big
Small can be very big.In order to overcome the problem, the size for making pipe sheath retract required power can be reduced using smooth liner.
It remains desirable, however, that the improved delivery system for self-expandable stent, the system has to delivering self-expandable stent etc. to be reduced
Power requirement.
Thus, the efficient and economic system for delivering medical treatment device is still constantly needed to, the system is easy to use simultaneously
And provide accurate placement.Presently disclosed subject matter meets these requirements and other requirements.
The content of the invention
The objects and advantages of disclosed theme will be set forth in the de-scription which follows and by following explanation and obvious,
And by by putting into practice disclosed theme and acquistion.Other advantages of disclosed theme will by printed instructions and its
The device specifically noted in claims and recognize and obtain by accompanying drawing.
In order to realize these and other advantages, according to the purpose of disclosed theme, as embodied and it is broadly described, institute
Disclosed theme includes a kind of conduit, and the conduit includes：Among other things, there is close end, distal portion and outer surface
Inner tubular member, said inner tube shape component also have the fluid cavity being limited in it, and the fluid cavity has by the outer surface
The fluid flow port limited along the distal portion of said inner tube shape component.The conduit also includes can be with respect to said inner tube shape structure
The outer tubular member of part movement, the outer tubular member have near-end, distal end and the appearance towards said inner tube shape component
The inner surface in face.The appearance of the proximal seal from the inner surface of the outer tubular member towards said inner tube shape component
Face extends.The proximal seal is located at the nearside of the fluid flow port.Institute of the distal seal from said inner tube shape component
Outer surface is stated towards the inner surface of the outer tubular member to extend.The distal seal is located at the fluid flow port
Distal side.Pressure chamber is by the proximal seal, the distal seal, the outer surface of said inner tube shape component and described
The inner surface of outer tubular member limits.
Actuator means are arranged in the pressure chamber, and the actuator means have seal section and cam segment.The cause
Dynamic device component can move between the first location and the second location.Introduced by the fluid flow port and be incorporated into the pressure
The actuator means are shifted to described second by fluid in the power chamber applying power on the seal section from the first position
Position.In addition, locking mechanism is arranged on the outer surface of said inner tube shape component and the interior table of the outer tubular member
Between face.The locking mechanism includes lock bolt, and the lock bolt, which has, prevents the outer tubular member relative to said inner tube shape structure
The engagement state of part movement and the disengaged position for allowing the outer tubular member to be moved relative to said inner tube shape component.When by institute
When stating actuator means and moving on to the second place, the latch displacement is made to the disengaged position by the cam segment.
The actuator means are in the second place and when the lock bolt are under the disengaged position, pass through the fluid stream
Open one's mouth and be introduced into and be incorporated into fluid in the pressure chamber applying power in the proximal seal, to promote in a proximal direction
Move the outer tubular member.
According to the another aspect of disclosed theme, there is provided a kind of method for deploying conduit, it includes：Except other it
Outside, there is provided above-mentioned conduit.Specifically, the conduit includes having close end, distal portion and the inner tubular member of outer surface.It is described
Inner tubular member, which also has, is limited to fluid cavity in it, and the fluid cavity has by the outer surface along said inner tube shape component
The distal portion limit fluid flow port.Outer tubular member can move relative to said inner tube shape component, the outer tubular structure
Part has near-end, distal end and the inner surface towards the outer surface of said inner tube shape component.The conduit is also included from described
The proximal seal that the inner surface of outer tubular member extends towards the outer surface of said inner tube shape component, the nearside
Seal is located at the nearside of the fluid flow port.Provide from the outer surface of said inner tube shape component towards the outer tube
The distal seal of the inner surface extension of shape component, the distal seal are located at the distal side of the fluid flow port.From
And provide by the proximal seal, the distal seal, the outer surface of said inner tube shape component and the outer tube
The pressure chamber that the inner surface of shape component limits.
In addition, according to the methods described in herein, the conduit includes the actuator means being arranged in the pressure chamber,
The actuator means have seal section and cam segment.The actuator means can move between the first location and the second location
It is dynamic.By the fluid flow port is introduced into and is incorporated into the pressure chamber fluid on the seal section applying power, with
The actuator means are shifted into the second place from the first position.Locking mechanism is arranged on said inner tube shape component
Between the outer surface and the inner surface of the outer tubular member.The locking mechanism includes lock bolt, and the lock bolt has
Prevent that the outer tubular member is relative with the outer tubular member is allowed relative to the engagement state that said inner tube shape component moves
In the disengaged position of said inner tube shape component movement.When the actuator means are moved on into the second place, by described
Cam segment makes the latch displacement to the disengaged position.
By using above-mentioned conduit, methods described is additionally included in the outer surface of said inner tube shape component and the outer tube
Opening position between the inner surface of shape component in the distal seal distal side sets device.Methods described also includes passing through
The fluid flow port is introduced fluid into the pressure chamber so that the actuator means are shifted into the second place and made
The latch displacement of the locking mechanism to the disengaged position, wherein, be in the second in the actuator means
Put and when the lock bolt is under the disengaged position, introduced by the fluid flow port and be incorporated into the pressure chamber
In fluid in the proximal seal applying power, to actuate the outer tubular member in a proximal direction.
It is to be understood that aforementioned consolidated statement and following detailed description and drawings are all examples, and for carrying out figure
Show, it is not intended to limit the scope of disclosed theme in any way.
Comprising in this manual and forming the accompanying drawing of a part for this explanation and be used to illustrate and provide to disclosed
The device of theme further understand.With reference to this explanation, accompanying drawing is used for the principle for explaining disclosed theme.
Brief description of the drawings
The theme of the application will be by described further below and easier to understand, in accompanying drawing when being read in conjunction with the figure
In：
Fig. 1 is the schematic side view according to the representative conduit of disclosed theme.
Fig. 2 is the perspective view of the distal ports of Fig. 1 conduit.
Fig. 3 A be along 3-3 interception Fig. 2 conduit perspective cross-sectional view.
Fig. 3 B be along 3-3 interception Fig. 2 conduit another embodiment perspective cross-sectional view.
Fig. 4 is according to the perspective cross-sectional view of the distal ports of the conduit of disclosed theme, and its middle pipe sheath is in close stance
Put.
Fig. 5 is the cross-sectional side view of the distal end of Fig. 4 conduit, and wherein conduit is in full retracted position.
Fig. 6 is its middle pipe according to the perspective cross-sectional view of the distal ports of the alternate embodiment of the conduit of disclosed theme
Sheath is in full retracted position.
Fig. 6 A be along 6a-6a interception Fig. 6 conduit viewgraph of cross-section.
Fig. 7 be along 7-7 interception Fig. 4 conduit detailed perspective view.
Fig. 8 is the perspective cross-sectional view of Fig. 7 conduit.
Fig. 9 is according to the another of the conduit when actuator and locking mechanism are under engagement state of disclosed theme
The cross-sectional side view of the distal portion of embodiment.
Figure 10 A are according to the perspective view of the actuator means of disclosed theme, and Figure 10 B are Figure 10 A actuator means
Side view, and Figure 10 C are the cross sections of Figure 10 B actuator means.
Figure 11 A are according to the perspective view of the locking mechanism of disclosed theme, and Figure 11 B are the sides of Figure 11 A locking mechanism
View, Figure 11 C are the front views of Figure 11 A locking mechanism, and Figure 11 D are Figure 11 B of cross-line 11D-11D interceptions locking mechanisms
Cross section, and Figure 11 E are the detailed views of the locking mechanism of Figure 11 D around online 11E.
Figure 12 is the cross-sectional side view of the conduit when locking mechanism is under disengaged position.
Embodiment
Now with detailed reference to the embodiment of disclosed theme, illustrate these embodiments in the accompanying drawings one shows
Example.Disclosed theme is described by the detailed description to system is combined.
As disclosed here, device presented herein can be used for the tube chamber system for treating patient.Specifically, institute is public
The theme opened, which is particularly suitable for use in, treats the cardiovascular system and peripheral-system of patient.
According to disclosed theme, there is provided a kind of conduit, the conduit include：Among other things, there is close end, remote
End and the inner tubular member of outer surface, inner tubular member also have the fluid cavity being limited in it, and fluid cavity has by appearance
The fluid flow port that distal portion of the face along said inner tube shape component limits.Conduit also includes can be relative to the outer of inner tubular member movement
Tubular element, outer tubular member have the inner surface of near-end, distal end and the outer surface towards inner tubular member.Proximal seal from
The inner surface of outer tubular member extends towards the outer surface of inner tubular member.Proximal seal is located at the nearside of fluid flow port.
Inner surface extension of the distal seal from the outer surface of inner tubular member towards outer tubular member.Distal seal is located at fluid stream
The distal side opened one's mouth.Pressure chamber by proximal seal, distal seal, inner tubular member outer surface and outer tubular member in
Surface limits.
Actuator means are arranged in pressure chamber, and actuator means have seal section and cam segment.Actuator means can be
Moved between first position and the second place.It is introduced into by fluid flow port and introduces the fluid in pressure chamber in seal section
Upper applying power, actuator means are shifted into the second place from first position.In addition, locking mechanism is arranged on inner tubular member
Between outer surface and the inner surface of outer tubular member.Locking mechanism includes lock bolt, lock bolt have prevent outer tubular member relative to
The engagement state of inner tubular member movement and the disengaged position for allowing outer tubular member to be moved relative to inner tubular member.When will cause
When dynamic device component moves on to the second place, latch displacement is made to disengaged position by cam segment.Second is in actuator means
Put and when lock bolt is under disengaged position, be introduced into by fluid flow port and to be incorporated into the fluid in pressure chamber close in nearside
Applying power on sealing, to actuate outer tubular member in a proximal direction.
Also disclose a kind of method for being used to deploy above-mentioned conduit.The feature for combining conduit is existed this method is described in detail
Details during expansion.
Only merely for the purpose of diagram, the hydraulic delivery for self-expandable stent etc. is schematically shown in fig. 1 and 2
The illustrative examples of system are sent, at least a portion of the self-expandable stent etc. is delivered in vascular system.Example herein
It is not intended to be limiting in any manner the scope of disclosed theme.Specifically, as illustrated, the hydraulic pressure delivery system included herein
It is the conduit 100 for cardiovascular intervention etc..Here it is envisaged that be used for other purposes and indication, such as, periphery and at one's knees
The conduit of intervention.Conduit 100 includes having close end, distal portion and the inner tubular member of outer surface 110.Conduit 100 also includes
Outer tubular member or pipe sheath 120, the outer tubular member or pipe sheath 120 can move and have relative to inner tubular member 110
Near-end, distal end and the inner surface towards the outer surface of inner tubular member 110.As shown in Fig. 2 in the present embodiment, outer tubular structure
Part 120 is only arranged at the remote end part of conduit.For other embodiment, outer tubular member 120 can be arranged on the near of conduit
End and/or remote end part.As described further herein, the conduit of disclosed theme is configurable to deliver any suitable
The medical treatment device of length, such as, support.That is, conduit is configurable to the power that generation is enough to make outer tubular member retract, wherein,
The power generated is more than by acting on the resistance caused by the medical treatment device in outer tubular member.
Only merely for the purpose of diagram, reference picture 3A, this diagram depicts the line 3-3 along Fig. 2 according to disclosed theme
The representative viewgraph of cross-section of the exemplary inner tubular member 110 of interception.Inner tubular member 110 also includes the stream being limited in it
Body cavity 310.In one embodiment, inner tubular member can also have the guidewire lumen 320 at least limited along the length in it.Example
Such as, guidewire lumen 320（If it is provided with）It can extend in the whole length of inner tubular member 110（Such as, for matching somebody with somebody " on silk "
Put）, or only extend along distal length（Such as, for " fast exchange " embodiment）.Alternately, conduit 100 can have
There is single-chamber design, and seal wire and pressure fluid can share identical chamber（It is not shown）, wherein it is possible to proximally and distally locate
Seal or valve are provided.
Fig. 3 B depict the another of the representative viewgraph of cross-section of the exemplary inner tubular member 110 along Fig. 2 line 3-3 interceptions
One embodiment.In the present embodiment, as shown in Figure 3 B, only merely for the female of diagram, guidewire lumen 320 can at least in part by
The independent wire leading pipe 321 being arranged in fluid cavity 310 limits, and is sealed in side, such as, for example, passing through mark（Do not show
Go out）.This arranged coaxial realizes the diameter for reducing inner tubular member 110, and thus reduces profile.In fact, limit
The wire leading pipe 321 of guidewire lumen 320 can be formed by the film of proper strength, to prevent seal wire from being penetrated from it.Hydraulic fluid by
This can flow in fluid cavity 310, but not flow out guidewire lumen 320.
Only merely for the purpose of diagram, configured referring now to the fast exchange of conduit disclosed herein, as shown in Figure 4.One
As for, conduit include there is close end, distal portion and the inner tubular member of outer surface 110.Inner tubular member 110 also includes stream
Body cavity 310, the fluid cavity 310 have the fluid flow port 420 limited by distal portion of the outer surface 111 along inner tubular member 110.
Conduit also includes outer tubular member 120, and the outer tubular member 120 can move relative to inner tubular member 110 and have near-end, be remote
End and the inner surface 121 of outer surface 111 towards inner tubular member 110.As described in more detail below, fluid flow port 420
Fluid is allowed to flow into the space limited by inner tubular member 110 and outer tubular member 120 out of fluid cavity 310, it is outer for carrying out
The operation and retraction of tubular element 120.Mark 422 can limit the distal end of fluid flow port 420.As embodied herein, quickly
Exchanging pipe also includes guidewire lumen 320, and distal portion of the guidewire lumen 320 along conduit extends and including the He of proximal guidewire mouth 410
Distal guide mouth 430.
As illustrated, outer tubular member 120 can be moved to contraction as shown in Figure 5 from extended position as shown in Figure 4
Position.When extending outer tubular member 120, outer tubular member 120 is by medical treatment device, the support 440 such as described herein, protects
Hold in compression or sending state.Distal end 460 can also be provided further to surround medical treatment device in delivery device.When making
When outer tubular member 120 is retracted（As shown in Figure 5 and Figure 6）, extract medical treatment device and it is expanded into deployed condition.
Outer tubular member 120 can also include the distal end for the near-end and/or outer tubular member for being coupled to outer tubular member
At least one removable tubular structure 130.Be assigned to Abbott Cardiovascular Systems Inc. companies with
Entitled " Catheter Having Movable Tubular Structure " the current Shen co-pending that the application submits on the same day
Please in elaborate the other details about may move tubular structure, disclosure of which is hereby incorporated by reference in their entirety.
Fluid cavity 310 has fluid flow port 420.Fluid flow port 420 defines interior tubulose structure along inner tubular member 110
The outer surface of part 110.As described in more detail below, fluid flow port 420 allows fluid to be flowed into out of fluid cavity 310 by inner tube
Shape component 110 and outer tubular member 120 the limit and space between proximal seal 720 and distal seal 730.Mark
Note 422 can limit the distal end of fluid flow port 420.
Only pressure chamber 450, proximal seal 720 and distal seal are depicted merely for the purpose of diagram, Fig. 7 and Fig. 8
730.In discussing and the purpose of diagram, the miscellaneous part not shown in pressure chamber herein, but can be from Michael
The titles all by Abbott Cardiovascular Systems Inc. companies that Green and Michael Bialas are carried out
For " Catheter having Dual Balloon Hydraulic Actuator " U. S. application the 13/467,679th and
In entitled " the Catheter having Hydraulic that Michael Green and Michael Bialas are carried out
Being described in more detail in Actuator with Tandem Chambers " U. S. application the 3/467th, 715 it is understood that this
The volume content of two applications is hereby incorporated by reference in their entirety.Inner surface of the proximal seal 720 from outer tubular member 120
Extend towards the outer surface of inner tubular member 110, and positioned at the nearside of fluid flow port 420.Proximal seal 720 is fixed to
The inner surface of outer tubular member 120, and moved freely through relative to inner tubular member 110.
With continued reference to Fig. 7 and Fig. 8, conduit 100 also includes the distal seal 730 separated with proximal seal 720.
Distal seal 730 extends from the outer surface of inner tubular member 110 towards the inner surface of outer tubular member 120, and positioned at stream
The distal side of body mouth 420.Distal seal 730 is fixed to the outer surface of inner tubular member 110, and relative to outer tubular member 120
Inner surface move freely through.In this way, outer tubular member 120 moves freely through relative to distal seal 730.Such as
Embodied herein, and as shown in fig. 7, one or two in proximal seal and distal seal can be formed across right
Answer the dust seal 740 on surface.
As shown in Figure 7 and Figure 8, only merely for the purpose of diagram, conduit 100 includes being sealed by proximal seal 720, distal side
The pressure chamber 450 that the inner surface 121 of part 730, the outer surface 111 of inner tubular member 110 and outer tubular member 120 limits.Pressure
Chamber 450 is in fluid communication with fluid flow port 420.
As recognized in the art, outer tubular member 120 includes medical treatment device to be delivered.Medical treatment device, for example, from
Swollen formula support, by making outer tubular member 120（Catheter sheath）Retract and deploy.Retraction be by using such as pressure generator or
Fluid is directed across fluid cavity 310 to realize by the conventional equipments such as person's syringe under stress.Pressure generator can include
Thread engaging mechanism or other locking mechanisms are with control pressure chamber（It is not shown）Pressurization and decompression.Furthermore it is possible to and pressure
Generator provides pressure gauge with the pressure system of monitoring tube together.Pressure generator is configurable to allow quick release hydraulic pressure
To stop or suppress the expansion of support.Pressure generator can also be configured to create and/or maintain in the catheter negative pressure.
Pressure generator can further create the vacuum for the profile for reducing conduit.For example, by creating vacuum, disclosed herein is outer
Tubular element 120 is configurable to reduce profile and/or latched position.The example of suitable pressure generator is Atrion
Pressure generator Atrion Medical -55ATM.
Adapter can be provided in the proximal end of conduit to be used to enter fluid cavity, and is configurable to be connected to fluid source
（It is not shown）.Reference picture 7, fluid are introduced into fluid cavity and fluid cavity, and stuffing pressure chamber are left at flow ports 420
450.Once enough fluids are incorporated into pressure chamber 450, the applying power in distal seal and proximal seal,.Because
Distal seal 730 is fixed relative to inner member, so only proximal seal 720 and being attached to the proximal seal 720
Outer tubular member 120 can be moved on proximal direction P relative to inner member.Proximal seal 720 is when in pressure chamber 450
Movement when applying power makes outer tubular member 120 be moved on proximal direction P along inner tubular member, so that medical treatment device
It can deploy.As here embodied, distal seal 730 is configured to the dust-proof close of the inner surface with outer tubular member 120
Sealing.Outer tubular member 120 moves thus relative to distal seal 730.It is attached to the near of the inner surface of outer tubular member 120
Side seal 720 is configured to the dust seal of the outer surface 111 with inner tubular member 110.Proximal seal 720 relative to
Inner tubular member 110 moves freely.
Although being shown as one chip seal construction in figures 7 and 8, if desired, disclosed theme it is each close
Sealing can be multiple-piece seal assembly.For example, seal assembly can include containment member and provide backing to containment member
Sleeve pipe, as known in the art.Seal 720 and 730 can be further respectively by proximal collar and distal side sleeve pipe（Do not show
Go out）Support.According to the one side of disclosed theme, sleeve pipe can be made up of any suitable material, be included but is not limited to
PEEK, Pebax, HDPE, LDPE, the blend of nylon such as HDPE and LDPE mixture, L75/L25 etc..Moreover, sleeve pipe
Other blends of metal material, combination low density polyethylene (LDPE), silicon, nitrile, soft Pebax 30 or suitable material can be included,
And suitable material as known in the art can be scribbled, and coating can be included.
Outer tubular member 120 is set to retract due to needing higher Fluid pressure, so it is this to be resistant to form pressure chamber
Pressure, realize minimum leakage to No leakage.A variety of suitable seal constructions and material can be used, such as, but is not limited to, slides
Seal, ring, cup seal, lippacking and compression sleeve.For example, each seal can be formed as single component
And corresponding tubular element is attached to, or, the part of tubular element can be formed as.Only merely for the purpose of diagram,
For seal, water wetted material can be used, such as, but is not limited to, HydroMedTM、HydrothaneTM、Hydak(R).By this
Seal made of kind material is configurable to the profit when exposed to aqueous environment, thus more steps up while remaining smooth
Thickly seal.Seal it is possible thereby to the compound including expandable material or material correspondingly to increase, to match outer tube
The size of shape component.That is, seal can include expanding together with outer tubular member to maintain sufficient sealing.
As pressure chamber expands, the exposed surface area of seal can also increase, so as to cause withdrawal force in given stream
Proportional increase under body pressure.Thus, expansion type pressure chamber provides bigger withdrawal force at a given pressure.By this material
Seal made of material is configurable to the profit when exposed to aqueous environment, thus while remaining smooth closely
Sealing.Alternately, proximal seal and distal seal can scribble hydrophobic layer, such as oil either wax or by hydrophobic material
Material is made, such as fluorocarbon or alkene, such as the polypropylene being used together with suitable pressure fluid, to prevent from sealing
Part profit.Only by way of example, the silicone encapsulant with Hydromer 2314-172 coatings can be provided.In another reality
Apply in example, for the seal construction being made up of silicones, buna or other suitable elastomers, o-ring can be used.
Moreover, mother only by way of example, seal can include soft injection-tube, such as, low-hardness tester Pebax.Additionally or
Alternately, can suppress to leak using high viscosity hydraulic fluid.
The embodiment of disclosed theme allows pressure chamber to be run using a variety of different convenient pressures.Only by way of example
Purpose, in one embodiment, pressure chamber can handle up to 750 psi malleation and the negative pressure close to 14 psi.Painstaking effort
The Example operating parameters of pipe conduit are included in close to 40 ATM to 50 ATM（Or about 588-735 PSI）In the range of operation
Pressure.
According on the other hand, conduit can also include bend pipe or the airbag components in intracavitary（It is not shown）, to prevent stopping leak
Dew.Bend pipe or airbag components are attached to the outer surface of inner tubular member, and are in fluid communication with fluid flow port, wherein, lead to
Crossing the fluid of fluid flow port introducing expands airbag components, further to make outer tubular member retract.
In the another aspect of disclosed theme, spacer element can be provided in pressure chamber（It is not shown）.Pressure chamber
It can prevent outer tubular member, proximal seal and distal seal from being caved in delivering and preservation catheter device.Interval member
Part can also reduce the amount for making outer tubular member retract required fluid.Spacer element can be by a variety of suitable shapes and material
Any one of shape and material be made, such as, have respectively with inner tubular member and the internal diameter and external diameter of outer tubular member
The ring element of corresponding diameter.
If desired, distal seal can form the block or stopper element for medical treatment device.Alternately, according to
The another aspect of disclosed theme, conduit can include the retainer 710 for being fixed to inner tubular member 110, such as Fig. 7 and Fig. 8
Described.Retainer is arranged on the distal side of pressure chamber and in medical treatment device to be delivered（For example, support）Nearside.Pass through
This mode, the sealed hydraulic fluid cavity 310 of retainer 710, but allow wire leading pipe 321 and/or seal wire（It is not shown）Pass through.Only
Moving part 710 can by or including radiopaque material, with provided to the doctor for performing the program placed for conduit it is visible
Property, so that medical treatment device is positioned at into treatment site exactly.Thus retainer 710 is radiopaque mark
Note.For example, mark can be radiopaque becket, or increase pliability and flexible by being made added with the polymer of tungsten
Property.Other known suitable mark can be used.In other embodiments, between pressure chamber 450 and the medical treatment device with delivering
Every separating, as being discussed further herein.
According to the another aspect of disclosed theme, other features can be provided, such as, spring, so that outer tubular member
120 in proximal direction P upper offsets.The spring and the example of other features that can implement together with the embodiment of this theme can be
Michael Bialas and Michael Green carry out by institute of Abbott Cardiovascular Systems Inc. companies
Have it is entitled " Catheter having Hydraulic Actuator " U. S. application the 13/467,660th, by
Michael Green and Michael Bialas carry out by institute of Abbott Cardiovascular Systems Inc. companies
Entitled " the Catheter having Dual Balloon Hydraulic Actuator " U. S. application the 13/th having
No. 467,679 and entitled " the Catheter having by Michael Green and Michael Bialas progress
Found in Hydraulic Actuator with Tandem Chambers " U. S. application the 3/467th, 715, these are special
The content of profit is hereby incorporated by reference in their entirety.
Referring now to Fig. 6, the only purpose merely for diagram, this diagram depicts " on silk " modified example of disclosed theme.
In the present embodiment, conduit 100 includes inner tubular member 110, outer tubular member 120（It is shown as at retracted position）, seal wire
Chamber 320 and the fluid cavity 310 with fluid flow port 420.Conduit 100 also includes being shown as the medical treatment dress for swelling state
Put（Such as, support 400）, carrier base 510 and distal guide mouth 430.
As shown in Figure 6A, can only be wrapped merely for the purpose of diagram, the inner tubular member 110 or slender conduit axle of conduit
Include the first and second tubular elements 110 and 610, first and second tubular element 110 and 610 respectively with each other in coaxial pass
System, with the center guidewire lumen 320 that is limited in the first tubular element 110 and first and second positioned at inner tubular member or axle
Annular fluid chamber 310 between tubular element 610.Fluid cavity 310 can supply hydraulic medium under positive pressure, and, if desired,
Hydraulic medium can be made to be retracted from pressure chamber 450（I.e., there is provided negative pressure）.Conduit being sized so as to and being configured to for set
Indication delivered in corresponding body cavity, such as, for blood vessel intervention vascular system.Conduit includes guidewire lumen, uses
Delivered on seal wire 620, as shown in Figure 6A.For example, in one embodiment, such as can for nerve accommodation disease, conduit
With the seal wire of compatibility 0.012 or 0.010.The part extended in chamber distal side of inner tubular member can be by the first tubular element
110 extension limits, either limited by the extension of the second tubular element 610 or, if desired, by single
Tubular element limits.Although depict in figure 6 in co-axial shafts and silk（OTW）Conduit configures, but those skilled in the art
It would be recognized that in the range of disclosed theme is not departed from, other configurations and known building material can be used, for example,
Fast exchange as previously described and/or two-chamber configuration.
In addition, according to disclosed theme, actuator means and locking component can also be provided, to prevent the outer tube of conduit
Shape component moves in a proximal direction in advance.The purpose unrestricted for diagram, with reference to as described above have one or
The conduit of the multiple pressure chambers of person.Actuator means, which are arranged in pressure chamber, to be used to move between the first location and the second location.
In addition, locking mechanism is arranged in pressure chamber.Locking mechanism, which has, is used to place outer tubular member relative to inner tubular member movement
Engagement state and allow outer tubular member move disengaged position.When actuator is moved into the second place, locking mechanism
It is moved to disengaging configuration.
Referring now to Fig. 9 representative conduit embodiments, this diagram depicts one embodiment according to disclosed theme
Locking system.Locking system includes the actuator means 801 being arranged in pressure chamber 450, as depicted.Actuator means
801 can move between the first location and the second location.Actuator means 801 include seal section 801A and cam segment 801B.
Referring now to Figure 10 A to Figure 10 C, the exemplary embodiment of the actuator means 801 of disclosed theme is depicted.
In general, as described in Figure 10 A perspective view, actuator means 801 are cylindrical form, and can be along inner tube
The outer surface movement of shape component.As shown in Figure 10 B, the seal section 801A described herein is formed as the flange to extend radially outwardly,
Although other configurations can be used.Cam segment 801B is formed as being arranged on the angled faces of the proximal end of actuator means.Cam
Surface can be relative to longitudinal axis shape at an angle, such as, between about 10 ° to about 45 °.Alternately, cam can be connected
Continued face etc..In addition, actuator means can be provided with dust seal either internal diameter along one end or both ends reduce with it is interior
The outer surface of tubular element forms being similarly configured for sealing.Actuator means can be any by what can undesirably be played a role
Suitable material is made.For example, being directed to cardiovascular indications, scleroscopic 6 grades with close to 50 to about 90 scopes can be used
Medical material.
Fig. 9 is looked back, stopper element 810 can be arranged between outer tubular member 120 and inner tubular member 110.For example, such as
Embodied herein, stopper element 810 can include own floating member, such as, the set that can be moved relative to outer tubular member 120
Cylinder.Stopper element 810 can be arranged on the distal side of actuator means 801, to limit the fluid relative flow ports of actuator means 801
420 first position.As Fig. 9 is described, stopper element 810 makes actuator means 801 be separated with distal seal 730, and
And nearside of the initially set actuator means 801 at first position in fluid flow port 420.Stopper element 810 limits
One or more flange or step of the internal diameter of increase in a proximal direction, as shown in Figure 9.For stopper element 810,
Any suitable component, such as, sleeve pipe can be used.When actuator means 801 are in first position, actuator means it is close
Envelope section 801A docks with flange or stopper element 810, is sealed with being formed with outer tubular member 120 and inner tubular member 110.By
Being sealed in pressure chamber 450 for seal section 801A establishments of actuator means 801 defines distal chamber portion 450A and proximal chamber portion
450B.When actuator is in first position, stopper element 810 is arranged in distal chamber 450A.
With the distal chamber portion 450A that pressure chamber 450 is introduced fluid into by fluid flow port 420, on seal section 801A
Applying power, to move actuator means 801 from first position towards the second place on proximal direction P.Work as actuator means
801 towards the second place move when, actuator means 801 are changed into separating with stopper element 810, and by seal section 801A
The sealing of establishment is interrupted.Therefore, the nearside movement of actuator means 801 makes distal chamber portion 450A and proximal chamber portion 450B each other
It is in fluid communication, and the fluid for being introduced into distal chamber portion 450B is moved in proximal chamber portion 450B.When actuator means 801 are in the
During two positions, the fluid being introduced into by fluid flow port 420 in pressure chamber 450 can apply in proximal seal 720 now
Power.
As previously noted, and as being further depicted as in Fig. 9, locking system embodied herein also includes setting
Locking mechanism 850 between the inner surface of the outer surface of inner tubular member 110 and outer tubular member 120.Locking mechanism 850 exists
The nearside of actuator means 801 is positioned in the present embodiment.In general, locking mechanism 850 can include and outer tubular member
120 couplings or the main component 851 for being fixed to outer tubular member 120, as described in detail later.Locking mechanism also includes lock
Door bolt 862, the lock bolt 862 have an engagement state as depicted in figure 9 and the basic disengaged position described such as Figure 12, and under
Face will be described with.
The purpose unrestricted for diagram, referring now to Figure 11 A to Figure 11 E, these figures depict disclosed theme
Locking mechanism exemplary embodiment.In general, as described in Figure 11 A perspective view, locking mechanism 850 includes tool
At least one lock bolt 863 for having the cylindrical body member 801 of recess 852 and extending from main component 801.Figure 11 B are depicted
The side view of Figure 11 A locking mechanism 850, and Figure 11 C are the front views of Figure 11 A locking mechanism.For example, and as schemed
Best shown in 11A and Figure 11 C, locking mechanism 850 is included in that the ambient separation of main component 851 separates and from master herein
Three distally extending lock bolts 863 of body component 851.Figure 11 D are the cross sections of cross-line 11D-11D Figure 11 B locking mechanism,
And Figure 11 E are the detail views of the locking mechanism of Figure 11 D around online 11E.As described in Figure 11 B and Figure 11 D, each
Lock bolt 863 can be at least in part by forming with cantilever for linking up with raised 863A etc..As Figure 11 E are described, each hook
Raised 863A distal end, which has, treats by the angled faces of the cam segment engagement of actuator means.Angled faces can be any suitable
Angle [alpha], such as, for example, between 0 ° and 60 °.
Referring again to Fig. 9, main component 851 includes the recess 852 being limited in the outer surface of main component 851, with auxiliary
Help and locking mechanism 850 is fixed to outer tubular member 120.During assembly, locking mechanism can couple with outer tubular member 120
Or it is fixed to outer tubular member 120.For example, outer tubular member 120 can be contained in recess 852, with along outer tubular member
The part of 120 outer surface forms groove 854.Filler 855 can be arranged on the ditch in recess 852 of outer tubular member 120
In groove 854, outer tubular member 120 is coupled to the main component 851 of locking mechanism 850.Moreover, filler can be provided with separately
Outer ring intensity, this part outer tubular member is fixed in the recess of locking mechanism, is such as being transferred from Abbott
Cardiovascular Systems Inc. companies and entitled " the Catheter Having submitted on the same day with the application
Movable Tubular Structure " it is current it is pending application disclosed in, its content is fully incorporated by reference
Herein.Filler can dock outer tubular member of the locking mechanism with sandwiched therebetween, grasp and lock to create.
Filler can provide enough ring intensity with by any suitable of outer tubular member and locking mechanism coupling
Material.For example, filler can include nylon, fluoropolymer（Such as, Kynar）, PEEK, resin, platinoiridita, ceramics and metal
（Such as, metal tape etc.）At least one of.According to the particular aspects of disclosed theme, filler can include be used for outside
The material that the material of tubular element bonds.For example, the material of filler can include and outer tubular member identical material.Filler and
Thus the compatibility of outer tubular member realizes more firm locking between outer tubular member and locking mechanism, even if outer tube
Shape component is not compatible with locking mechanism heat.In addition, the increase of the outer tubular member and the thickness of filler bonded with recess provides
Monolayer material intensity not to be covered itself.In addition, pass through heat bonding, there is provided adjacent outer tubular member and filler it is substantially continuous
Surface, to eliminate the area or edge that may be blocked when system is advanced and either exited from vascular system.In addition, by filler
The locking of establishment provides the intensity of the integrality for maintaining parts of vessels.Filler is it is possible thereby to cohesive, hot sticky by heat
Conjunction, viscose glue bonding etc., and the crimping by suitable material binding agent or die forging, and it is bonded to outer tubular member.
Referring again to Fig. 9, locking system can also include the sleeve 865 for being coupled to inner tubular member 110.Sleeve 865 is set
Put between inner tubular member 110 and locking mechanism 850, and flange or trip edge are limited in its far-end.Such as Fig. 9
Middle described, the raised 863A of hook of lock bolt 863 is configured to edge join when under engagement state with sleeve 865.
Alternative arrangement can be provided to form trip edge on inner tubular member, to be engaged by lock bolt.For example, interior tubulose structure
Part can be provided in ring either in projection or, slit can be limited in the outer surface of inner tubular member., can for sleeve
To use any suitable material.
Figure 12 shows the embodiment of theme, and lock bolt 863 is in disengaged position.When as previously described by actuator structure
When part 801 is moved to the second place, the cam segment 801B of actuator means 801 engages with lock bolt 863.Using in proximal direction P
The cam 801B of upper movement power, the influence of the hydraulic pressure on seal section due to acting on actuator means 801, so lock bolt
863 are moved to disengaged position by cam segment 801B, and thus unclamp sleeve or other trip edges, for making outer tubular
Component then moves in a proximal direction.
In the fig. 12 embodiment, for the purpose of diagram, with the slit being limited in the outer surface of inner tubular member 110
117 substitute sleeve.In the present embodiment, lock bolt 863 engages with slit 117 when in the engaged state.Such as Figure 12 embodiment
Described, when actuator means 801 are shifted into the second place, the cam segment 801B and lock bolt 863 of actuator means 801 are de-
From to unclamp outer tubular member, realizing by acting on the subsequent shifting of the Fluid pressure in proximal seal in a proximal direction
It is dynamic.
Locking mechanism can be made up of any suitable biocompatible material or including any suitable bio-compatible material
Material, such as, PEEK.Because outer tubular member need not be bonded directly to locking mechanism, locking mechanism（And more have
Body, the main component of locking mechanism）It can include not being used for the material with the heat bonding of the material of outer tubular member.In this way,
For locking mechanism, it is advantageous that by the higher fusion temperature of the fusion temperature with than outer tubular member and/or filler
Suitable material be made.Thus, when heat energy or heat is applied to area where locking mechanism, locking mechanism can also
Maintain its structural intergrity.If desired, locking mechanism can also include PTFE liners either other low frictions or smooth layer.
According to the another aspect of disclosed theme, there is provided a kind of method for deploying conduit, this method include：Except it
Outside him, there is provided conduit as previously described above.This method is additionally included in outer surface and the outer tubular of inner tubular member
Opening position between the inner surface of component in distal seal distal side sets device（Such as, support）.Device（Such as, support）Edge
The position of conduit depends on required indication（Such as, cardiovascular intervention or periphery intervention）.It will be flowed by fluid flow port
Body is introduced into pressure chamber, so that actuator means are mobile towards the second place and make the latch displacement of locking mechanism to departing from shape
State.When actuator means are in the second place and lock bolt is under disengaged position, introduce and draw by fluid flow port
Enter the applying power in the proximal seal of pressure chamber of the fluid into pressure chamber, to actuate outer tubular member in a proximal direction.
Due to being to actuate outer tubular member in a proximal direction, so by support exposure and being deployed in the tube chamber system of patient.
When deploying support, conduit is set to be exited from tube chamber system.Other details and feature about this method will pass through explanation above
To describe and/or understand, or it is incorporated herein by reference.
According to the embodiment of the theme described before, the part of conduit can be made up of a variety of suitable materials.For example, can
The proximal seal and distal seal of expansion chamber's configuration can be formed by any suitable material.Only by way of example, it is close
Sealing can be rubber or silicon.In the embodiment with inflatable pressure chamber, seal can by with compressive state and
The low-hardness tester rubber of swelling state is formed.Seal significantly can compress and deform in initial delivering configuration, when right
When pressure chamber pressurizes, swelling state is transitioned into.Alternately, seal can be by absorbing the fluid in pressure chamber and along outer
The hydrophilic polymer of tubular element expansion is made.Alternately, proximal seal and distal seal can be by hydrophobic material systems
Into.
Inner tubular member and outer tubular member can be the component of single piece construction or part respectively, and can be by appointing
What suitable material is made.For example, suitable material includes but is not limited to polymeric material, and such as, nylon, urethane, poly- sub- peace
Ester, PEEK, PTFE, PVDF, fluoropolymer（Such as, Kynar）, PE, HDPE, trilaminate material（Including L25）、Plexar、
PEBAX or a variety of proper densities polyethylene.In one example, outer tubular member is included with the nylon on the inside of PTFE
Woven tube.Smooth liner on the internal diameter of outer tubular member or pipe sheath（Such as, PTFE）Allow to deploy with less power
Support, and outer tubular member can be prevented to be bonded to support or other parts of vessels.In another example, outer tubular member
Including the fluoropolymer woven tube with smooth liner.Moreover, at least a portion of inner tubular member and/or outer tubular member
It can be made up of alloy or metal material, such as, stainless steel hypodermic tube etc..
As another alternative solution, inner tubular member and/or external member can be made up of multiple outer tubular members respectively.Only
Moving part can further form the joint for two adjacent tubular members.Outer tubular member can be further by more including preparing
Kind different materials（Such as, the co-extrusion of different polymer）Compound or fiber-reinforced composites（Such as, fiber is strengthened
Type resin material or braided material）Form.Only by way of example, exemplary embodiment can include the volume with PTFE liners
Pipe is knitted, the polyamide intermediate layer and Pebax 72D outer layers with braid.In addition, in order to improve pliability, can form
Configured when inner tubular member and outer tubular member using spiral shape or spirally component.
Representative configuration for outer tubular member includes：Individual layer polyimides or PEEK；L25, Plexar, HDPE's
Trilaminate material；Or the polyimides intermediate layer with PTFE liners, with braid and the woven tube of Pebax 72D outer layers.
Inner tubular member and/or outer tubular member can also be strengthened by adding enhancing component, such as, for example, silk is rolled up.In a reality
Apply in example, inner tubular member along length corresponding with pressure chamber addition enhancing component by strengthening.
It is further contemplated that inner tubular member and outer tubular member can be made up of other biological compatible material.In this way,
The inner tubular member and outer tubular member of conduit can be made up of above-mentioned polymer, the combination of these polymer or blend,
Either individually still combined with other materials or other biological absorbable material.
Inner tubular member and outer tubular member can be manufactured by using a variety of known technologies, such as, but be not limited to,
Extruding, injection moulding, air-blowing, stretching, deep-draw, polymerization, crosslinking, impregnated with solution, powder deposition, sintering, Electrospun, melting are spun
Silk, temperature deformation, stretch blow, by it is any of the above described combination with strengthen element（Such as metal fabric, coil, glass fibre, carbon
Fiber and other kinds of organic or inorfil, liquid catalyst）Carry out the machining skill of chemical graft and classics
Art（Such as milling, drilling, grinding etc.）.In hardware to be included（Such as, hypotube）In the case of, it can use a variety of
Metal fabrication techniques, such as, but be not limited to, machining, tube-pulling craft, drilling, milling, EDM, other deformation methods, plating,
Sputtering, electricity grafting, sintering and deposition, etc..In one embodiment of disclosed theme, inner tubular member is at least near at its
Include stainless steel hypotube at end.
In addition, inner tubular member and outer tubular member can be by using extruders（Such as, can be from numerous known supplies
The extruder bought at business）It is made up of by extruding work PE, polypropylene, Kynar or urethane.It can come in many ways
These materials are post-processed, these modes include：It is only for example and unrestricted, extruding, shaping（Such as, injection molding or dipping
Shaping）, textile processing（Such as, weave or weave）And shaping.Can forming technology be suitably that sheet material is rolled
Formed with welding or vacuum forming for tubulose, slightly lift several.
If desired, inner tubular member and outer tubular member further can scribble appointing in multiple material using paint-on technique
What is a kind of to strengthen its performance, is included in by patented subject matters all Abbott Laboratories（Such as, U.S. Patent No.
No. 6,541,116, U.S. Patent No. 6,287,285, U.S. Patent No. 6,541,116）Under numerous suitable coatings and
Paint-on technique, entire contents of these patents are hereby incorporated herein by.For example, it may be possible to coating material include smooth material
Material（Such as, Teflon）And hydrophobic material（Such as, silicones dispersed lubricant PN 4097）Or water wetted material（Such as,
Hydrogel）It is or lubricious.
Inner tubular member and outer tubular member can have any suitable shape of cross section, including ellipse, polygon,
Or prismatic, although generally preferably circular cross section.Inner tubular member and outer tubular member can also have any suitable big
Small and diameter, this depends on required application.The size of conduit is suitably designed and is configured to for set indication
Corresponding body intraluminal delivery, such as, the vascular system for blood vessel intervention.
As here embodied, outer tubular member can include outer layer and internal layer.Outer tubular member can be provided with attachment
To or formed with outer layer internal layer.Internal layer or liner can include lubricious material, outer tubular member is retracted to promote to work as
When outer tubular member slip in a proximal direction.For example, different types of polymer（Such as, PTFE）It is or any fluorine-containing poly-
Compound and high density polyethylene (HDPE)（HDPE）It can be used for internal layer or up and down coating.Further, it is possible to use other smooth polymerics.
As here embodied, outer layer provides enough intensity, by medical treatment device capture in outer layer, and realizes at first
Put the movement between the second place.Multiple layers could be separately formed, and bonding is either bonded together or co-extrusion is
Single component.
In addition, according to disclosed theme, outer tubular member can include the enhancement layer being arranged between outer layer and internal layer,
Such as, braided material.For example, the form such as stainless steel tube that enhancement layer can weave provides.Braid can be thin including flattening
Silk, rather than the filament with circle cross-section.Alternately, enhancement layer can be the form of pipe, the pipe include plant or
The filament that person is suitably orientated, such as, wrap the carbon fiber in polymeric matrices.Equally, during manufacturing process, by this reinforcement
Fiber is additionally or alternately included in internal layer and/or outer layer.
When outer tubular member is provided with internal layer, outer layer and enhancement layer, outer tubular member can shape in the following way
Into.First, internal layer is formed by tubular extrusion technique, and internal layer is arranged on shaping mandrel（It is not shown）Around.As herein
Embodied, shaping mandrel has the shape corresponding with the required shape of the inside of outer tubular member.Next, can be with stainless
The enhancement layer that steel braided material form provides is positioned on the predetermined length of internal layer.Next, extruding outer layer, and by outer layer
Be positioned at outer layer on enhancement layer can the forms of two single tubular elements provide, the two single tubular elements are at it
End slightly overlap on enhancement layer.Each part of outer layer can be selected to provide as described above not
With scleroscopic different materials.Two parts of outer layer can be with overlapping a certain amount of, such as, close to 0.1 inch.Next, by heat
The sleeve of compression material is positioned on whole outer tubular member component.Finally, to the component applying heat.When applying heat, pyrocondensation injection
Pipe shrinks, and internal layer is fused with outer layer, so as to which enhancement layer be trapped in therebetween.Heating process also makes internal layer with shaping mandrel
Shape is consistent.After component cooling, pyrocondensation injection-tube is cut away, retains outer tubular member.
Although disclosed theme is described here by certain preferred embodiment, those skilled in the art
Member can carry out a variety of modification and improvement it would be recognized that in the case where not departing from the scope of this theme to disclosed theme.
Other feature as known in the art is equally may be embodied in, such as in Pappas U.S. Patent No. 7,799,065
Disclosed, the full content of the patent is hereby incorporated herein by.Furthermore although can discuss herein or this one
The independent feature of one embodiment shown in the drawings of disclosed theme of individual embodiment rather than other embodiment, but should
This is it is readily apparent that the independent feature of one embodiment can be with one or more feature of another embodiment or coming from
The combinations of features of multiple embodiments.
In addition to the multiple embodiments described and required, disclosed theme is further related to have disclosed herein and required
Feature any other possible combination other embodiment.In this way, in the range of disclosed theme, propose herein
Special characteristic can be combined with each other otherwise, so that disclosed theme includes any of feature disclosed herein
Suitable combination.Although moreover, have references to support through the disclosure, by using conduit disclosed herein and can also be
Unite to deliver other suitable devices and implant.Thus, for diagram and illustration purpose, it has been proposed that disclosed master
The preceding description of the specific embodiment of topic.It is arranged in exhaustion or disclosed theme is limited to these disclosed implementations
Example.
It will be apparent to those skilled in the art that the spirit or scope of disclosed theme is not being departed from
It is interior, a variety of modifications and variations can be carried out to the method and system of disclosed theme.Thus, it is intended to make disclosed theme bag
Include the modifications and variations in the range of appended claims and its equivalent.
Claims (10)
1. a kind of conduit, including：
With close end, distal portion and the inner tubular member of outer surface, said inner tube shape component, which also has, is limited to stream therein
Body cavity, the fluid cavity have the fluid flow port that the distal portion along said inner tube shape component is limited by the outer surface；
Relative to the moveable outer tubular member of said inner tube shape component, the outer tubular member has near-end, distal end and direction
The inner surface of the outer surface of said inner tube shape component；
The proximal seal extended from the inner surface of the outer tubular member towards the outer surface of said inner tube shape component, it is described near
Side seal is located at the nearside of the fluid flow port；
It is described remote from the outer surface of said inner tube shape component towards the distal seal of the inner surface of outer tubular member extension
Side seal is located at the distal side of the fluid flow port；
Pass through the proximal seal, the distal seal, the outer surface of said inner tube shape component and the outer tubular member
Inner surface limit pressure chamber；
The actuator means being arranged in the pressure chamber, the actuator means have seal section and cam segment, the actuating
Device component may move between the first location and the second location, wherein, introduced by the fluid flow port and be incorporated into institute
State the applying power on the seal section of the fluid in pressure chamber so that the actuator means shifted to from the first position it is described
The second place；And
The locking mechanism being arranged between the outer surface of said inner tube shape component and the inner surface of the outer tubular member, the lock
Determining mechanism includes lock bolt, and the lock bolt has the joint shape for preventing that the outer tubular member from moving relative to said inner tube shape component
State and the disengaged position for allowing the outer tubular member to be moved relative to said inner tube shape component, when the actuator means move on to
During the second place, the lock bolt is moved to the disengaged position by the cam segment,
Wherein, it is in the second place in the actuator means and the lock bolt is in the situation of the disengaged position
Under, applied by the fluid that the fluid flow port is introduced into and is incorporated into the pressure chamber in the proximal seal
Power, to actuate the outer tubular member in a proximal direction.
2. the conduit according to preceding claims, it is characterised in that the locking mechanism includes main component, and described
Lock bolt limits at least partially through the arm extended from the main component.
3. conduit according to any one of the preceding claims, it is characterised in that the locking mechanism includes being coupled to institute
The sleeve of inner tubular member is stated, wherein, the lock bolt engages when in the engagement state with the sleeve.
4. conduit according to any one of the preceding claims, it is characterised in that described in being shifted to when the actuator means
During the second place, the cam segment of the actuator means makes the lock bolt depart from the sleeve.
5. conduit according to any one of the preceding claims, it is characterised in that slit is limited at said inner tube shape structure
In the outer surface of part, the lock bolt engages when in the engagement state with the slit.
6. conduit according to any one of the preceding claims, in addition to stopper element, the stopper element is arranged on institute
State between outer tubular member and said inner tube shape component, to limit institute of the actuator means relative to the fluid flow port
State first position.
7. conduit according to any one of the preceding claims, it is characterised in that the stopper element is included relative to institute
State the moveable sleeve of outer tubular member.
8. conduit according to any one of the preceding claims, it is characterised in that the actuator means are in the nearside
On direction the second place is shifted to from the first position.
9. conduit according to any one of the preceding claims, it is characterised in that when the actuator means are in described
During first position, the seal section of the actuator means is formed with the stopper element and sealed, to be limited in the pressure chamber
Distal chamber portion and proximal chamber portion.
10. a kind of method for deploying conduit, including：
Conduit is provided, it includes：
With close end, distal portion and the inner tubular member of outer surface, said inner tube shape component, which also has, is limited to stream therein
Body cavity, the fluid cavity have the fluid flow port that the distal portion along said inner tube shape component is limited by the outer surface,
Relative to the moveable outer tubular member of said inner tube shape component, the outer tubular member has near-end, distal end and direction
The inner surface of the outer surface of said inner tube shape component,
The proximal seal extended from the inner surface of the outer tubular member towards the outer surface of said inner tube shape component, it is described near
Side seal is located at the nearside of the fluid flow port,
It is described remote from the outer surface of said inner tube shape component towards the distal seal of the inner surface of outer tubular member extension
Side seal is located at the distal side of the fluid flow port,
Pass through the proximal seal, the distal seal, the outer surface of said inner tube shape component and the outer tubular member
Inner surface limit pressure chamber,
The actuator means being arranged in the pressure chamber, the actuator means have seal section and cam segment, the actuating
Device component may move between the first location and the second location, wherein, introduced by the fluid flow port and be incorporated into institute
State the applying power on the seal section of the fluid in pressure chamber so that the actuator means shifted to from the first position it is described
The second place, and
The locking mechanism being arranged between the outer surface of said inner tube shape component and the inner surface of the outer tubular member, the lock
Determining mechanism includes lock bolt, and the lock bolt has the joint shape for preventing that the outer tubular member from moving relative to said inner tube shape component
State and the disengaged position for allowing the outer tubular member to be moved relative to said inner tube shape component, when the actuator means move on to
During the second place, the lock bolt is moved to the disengaged position by the cam segment；
It is in the position in the distal seal distal side in outer surface and the outer tubular member of said inner tube shape component
Device is set between surface；And
Introduce fluid into and be incorporated into the pressure chamber by the fluid flow port, so that the actuator means are shifted to
The second place, and make the latch displacement of the locking mechanism to the disengaged position, wherein, in the actuator means
In the case that the second place and the lock bolt are in the disengaged position, introduced simultaneously by the fluid flow port
And the applying power in the proximal seal of the fluid in the pressure chamber is incorporated into, to actuate the outer tube in a proximal direction
Shape component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711155958.8A CN107744418B (en) | 2013-03-12 | 2013-03-12 | Catheter with hydraulic actuator and locking system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201380074601.0A CN105228562B (en) | 2013-03-12 | 2013-03-12 | Conduit with hydraulic actuator and locking system |
| CN201711155958.8A CN107744418B (en) | 2013-03-12 | 2013-03-12 | Catheter with hydraulic actuator and locking system |
| PCT/US2013/030513 WO2014142808A1 (en) | 2013-03-12 | 2013-03-12 | Catheter having hydraulic actuator and locking system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380074601.0A Division CN105228562B (en) | 2013-03-12 | 2013-03-12 | Conduit with hydraulic actuator and locking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107744418A true CN107744418A (en) | 2018-03-02 |
| CN107744418B CN107744418B (en) | 2020-07-10 |
Family
ID=48237244
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711155958.8A Expired - Fee Related CN107744418B (en) | 2013-03-12 | 2013-03-12 | Catheter with hydraulic actuator and locking system |
| CN201380074601.0A Expired - Fee Related CN105228562B (en) | 2013-03-12 | 2013-03-12 | Conduit with hydraulic actuator and locking system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380074601.0A Expired - Fee Related CN105228562B (en) | 2013-03-12 | 2013-03-12 | Conduit with hydraulic actuator and locking system |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2967949A1 (en) |
| JP (1) | JP6172779B2 (en) |
| CN (2) | CN107744418B (en) |
| CR (1) | CR20150528A (en) |
| WO (1) | WO2014142808A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113081192A (en) * | 2021-02-09 | 2021-07-09 | 中国人民解放军海军军医大学第一附属医院 | Extendable tubular medical device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105894A (en) * | 2015-07-20 | 2015-12-02 | 宁波琳盛高分子材料有限公司 | Reinforced compound sheathing canal, preparation method and application thereof |
| CN107280830B (en) * | 2016-04-12 | 2019-02-01 | 苏州茵络医疗器械有限公司 | Intravascular stent transportation system and its conduit tube component |
| US11116651B2 (en) | 2016-04-12 | 2021-09-14 | Suzhou Innomed Medical Device Co., Ltd | Vascular stent delivery system and tubing assembly thereof |
| WO2018125806A1 (en) * | 2016-12-29 | 2018-07-05 | Boston Scientific Scimed, Inc. | Hydration delivery system for stents |
| CN106580531B (en) * | 2017-01-24 | 2018-03-23 | 南华大学 | Delivery system for expandable stent |
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|---|---|---|---|---|
| US5817101A (en) * | 1997-03-13 | 1998-10-06 | Schneider (Usa) Inc | Fluid actuated stent delivery system |
| US6113608A (en) * | 1998-11-20 | 2000-09-05 | Scimed Life Systems, Inc. | Stent delivery device |
| US20020045929A1 (en) * | 2000-10-13 | 2002-04-18 | Juan-Carlos Diaz | Stent delivery system with hydraulic deployment |
| US20110307049A1 (en) * | 2010-06-08 | 2011-12-15 | Stephen Kao | Bi-directional stent delivery system |
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| US6221425B1 (en) | 1998-01-30 | 2001-04-24 | Advanced Cardiovascular Systems, Inc. | Lubricious hydrophilic coating for an intracorporeal medical device |
| US6541116B2 (en) | 1998-01-30 | 2003-04-01 | Advanced Cardiovascular Systems, Inc. | Superoxide dismutase or superoxide dismutase mimic coating for an intracorporeal medical device |
| US6425898B1 (en) | 1998-03-13 | 2002-07-30 | Cordis Corporation | Delivery apparatus for a self-expanding stent |
| EP1807144A1 (en) * | 2004-09-14 | 2007-07-18 | William, a Cook Australia Pty. Ltd. | Large diameter sheath |
| US8435279B2 (en) * | 2005-06-14 | 2013-05-07 | Advanced Cardiovascular Systems, Inc. | Delivery system for a device such as a stent |
| EP1981432B1 (en) | 2005-06-30 | 2012-10-03 | Abbott Laboratories | Delivery system for a medical device |
| US10213329B2 (en) * | 2011-08-12 | 2019-02-26 | W. L. Gore & Associates, Inc. | Evertable sheath devices, systems, and methods |
| CN102488576B (en) * | 2011-11-25 | 2014-07-16 | 北京华脉泰科医疗器械有限公司 | Convey and release device for covered stents |
-
2013
- 2013-03-12 WO PCT/US2013/030513 patent/WO2014142808A1/en active Application Filing
- 2013-03-12 JP JP2016500029A patent/JP6172779B2/en not_active Expired - Fee Related
- 2013-03-12 CN CN201711155958.8A patent/CN107744418B/en not_active Expired - Fee Related
- 2013-03-12 EP EP13720154.7A patent/EP2967949A1/en not_active Withdrawn
- 2013-03-12 CN CN201380074601.0A patent/CN105228562B/en not_active Expired - Fee Related
-
2015
- 2015-10-09 CR CR20150528A patent/CR20150528A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5817101A (en) * | 1997-03-13 | 1998-10-06 | Schneider (Usa) Inc | Fluid actuated stent delivery system |
| US6113608A (en) * | 1998-11-20 | 2000-09-05 | Scimed Life Systems, Inc. | Stent delivery device |
| US20020045929A1 (en) * | 2000-10-13 | 2002-04-18 | Juan-Carlos Diaz | Stent delivery system with hydraulic deployment |
| US20110307049A1 (en) * | 2010-06-08 | 2011-12-15 | Stephen Kao | Bi-directional stent delivery system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113081192A (en) * | 2021-02-09 | 2021-07-09 | 中国人民解放军海军军医大学第一附属医院 | Extendable tubular medical device |
| CN113081192B (en) * | 2021-02-09 | 2022-10-28 | 中国人民解放军海军军医大学第一附属医院 | Extendable tubular medical device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107744418B (en) | 2020-07-10 |
| EP2967949A1 (en) | 2016-01-20 |
| CN105228562A (en) | 2016-01-06 |
| CN105228562B (en) | 2017-12-22 |
| WO2014142808A1 (en) | 2014-09-18 |
| JP2016514003A (en) | 2016-05-19 |
| CR20150528A (en) | 2016-04-07 |
| JP6172779B2 (en) | 2017-08-02 |
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