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CN109200436A - A kind of seal wire - Google Patents

A kind of seal wire Download PDF

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Publication number
CN109200436A
CN109200436A CN201811307758.4A CN201811307758A CN109200436A CN 109200436 A CN109200436 A CN 109200436A CN 201811307758 A CN201811307758 A CN 201811307758A CN 109200436 A CN109200436 A CN 109200436A
Authority
CN
China
Prior art keywords
sacculus
seal wire
proximal end
push rod
end push
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.)
Granted
Application number
CN201811307758.4A
Other languages
Chinese (zh)
Other versions
CN109200436B (en
Inventor
许海峰
谭茂彩
胡清
刘继勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mixin Medical Technology Suzhou Co ltd
Original Assignee
Causel Medical Technology (suzhou) Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Causel Medical Technology (suzhou) Co Ltd filed Critical Causel Medical Technology (suzhou) Co Ltd
Priority to CN201811307758.4A priority Critical patent/CN109200436B/en
Publication of CN109200436A publication Critical patent/CN109200436A/en
Application granted granted Critical
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Active legal-status Critical Current
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09008Guide wires having a balloon
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09133Guide wires having specific material compositions or coatings; Materials with specific mechanical behaviours, e.g. stiffness, strength to transmit torque

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The present invention relates to guide wire component technology fields, and in particular to a kind of seal wire.A kind of seal wire, including proximal end push rod and flexible tip, sacculus is provided on the proximal end push rod, the sacculus is connect with the proximal end push rod seal, the proximal end push rod is hollow structure, the filling channel for inflating into the sacculus is arranged inside, proximal end push rod proximal end forms the inflating port inflated into the sacculus.The present invention increases the sacculus that can be filled and shrink on the proximal end push rod of seal wire, when sacculus dilating catheter is withdrawn in human body, sacculus can be filled, move the fixed position of seal wire will not with withdrawing from for conduit, pass through structure of the seal wire in conjunction with sacculus, it solves inconvenience of the foley's tube of whole crossover when replacing foley's tube, the operation of doctor can be greatly simplified, shorten operating time and simplify the program of surgical procedure.

Description

A kind of seal wire
Technical field
The present invention relates to guide wire component technology fields, and in particular to a kind of seal wire.
Background technique
Seal wire (Guide Wire) is also referred to as guide wire or guide wire, is one of the main tool of percutaneous puncture intubation. Seal wire is guided conduit and supporting function, and help conduit enters blood vessel and other lacunas, guiding catheter smoothly reach lesion.? In catheter treatment operation, with conduit no less important.Important instrument of the sacculus dilating catheter as intervention operation, seal wire are necessary Auxiliary instrument enters lesion locations for sacculus dilating catheter and provides path and guiding role, if balloon expandable is led without seal wire Pipe can not just reach lesion locations, can not also play the role of it is due, therefore seal wire be sacculus dilating catheter treatment prerequisite item Part.
There are two types of structures for existing sacculus dilating catheter, one is RX rapid-exchange version, a kind of OTW entirety crossover.This The sacculus dilating catheter of each have their own advantage of the sacculus dilating catheter of two kinds of structures and disadvantage, RX type only has the conduit of first half On seal wire, the conduit of latter half will not cover seal wire (such as Fig. 1), when in use, be convenient for changing the rule of sacculus dilating catheter Lattice, without extracting seal wire out, in extraction, hand can fix the seal wire of proximal end, then withdraw from conduit.The sacculus of OTW type Dilating catheter is since whole conduit is required across seal wire (Fig. 2), and when seal wire is withdrawn from since conduit is long, seal wire is again inadequate It is long, therefore the proximal end of fixed seal wire cannot be held always, conduit and seal wire can only be extracted out in vivo together, or seal wire is prolonged Long, then by the fixed seal wire of a doctor, another doctor withdraws from sacculus dilating catheter in vivo, and operation is considerably complicated, and It is time-consuming and laborious.But the sacculus dilating catheter of OTW type, since whole conduit is all on seal wire, supportive is good in operation, for Complicated CTO lesion has irreplaceable advantage, therefore in clinical use, if complicated behaviour when can solve replacement conduit Make defect, the sacculus dilating catheter of OTW type will be more widely used for doctor, will be to have very much for doctor The thing of benefit.
Summary of the invention
In order to solve the above technical problems, the purpose of the application be to provide a kind of fixed position of seal wire will not removing with conduit It moves out, and greatly simplifies the operation of doctor, shorten the seal wire of operating time.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention to solve the technical problems is:
A kind of seal wire, including proximal end push rod and flexible tip, are provided with sacculus on the proximal end push rod, the sacculus with Proximal end push rod seal connection, the proximal end push rod be hollow structure, is arranged inside for inflating into the sacculus Filling channel, proximal end push rod proximal end form the inflating port inflated into the sacculus.
Preferably, the seal wire has contraction state and expanded state, when the seal wire is located at contraction state, the ball Capsule is in folded state, and sacculus is tightly attached to proximal end push rod outer surface;When the seal wire is located at expanded state, the sacculus is in The state of inflation, the balloon inflation is at cryptomere sphere.
It preferably, further include sealing-plug, the sealing-plug is made of flexibility elastic material, and the sealing-plug is arranged in institute It states on inflating port.
Preferably, PTFE coating is coated on proximal end push rod outer surface.
Preferably, the flexible tip includes transition central axis, the transition central axis by transition connecting rod with it is described Proximal end push rod connects, and is arranged with spring ring on the transition central axis.
Preferably, the spring ring surface is coated with hydrophilic coating.
Preferably, the transition central axis is made of niti material, and the spring ring is entwined for stainless steel wire.
Preferably, the sacculus is foldable and winding forms more valve structures.
Preferably, the sacculus is any in silica gel material, TPU material, pebax material, PE material or nylon material A kind of material is made.
Beneficial effects of the present invention:
The present invention increases the sacculus that can be filled and shrink on the proximal end push rod of seal wire, and air bag passes through filling channel It is inflated and deflates, when sacculus dilating catheter is withdrawn in human body, sacculus can be filled, make the fixed position of seal wire not Can be moved with withdrawing from for conduit, seal wire is fixed on blood vessel by sacculus, conduit withdraw from completely it is internal after, then by conduit Balloon pressure removal on seal wire, will not influence the circulation of blood in this way, by structure of the seal wire in conjunction with sacculus, solves whole Inconvenience of the foley's tube of body crossover when replacing foley's tube can greatly simplify the operation of doctor, shorten operating time With the program for simplifying surgical procedure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of RX rapid-exchange version sacculus dilating catheter in the prior art.
Fig. 2 is the structural schematic diagram of OTW entirety crossover sacculus dilating catheter in the prior art.
Fig. 3 is a kind of guide wire schematic diagram of the invention.
Fig. 4 is a kind of structural schematic diagram of guide wire of the invention in expanded state.
Fig. 5 is plug construction schematic diagram of the invention.
Fig. 6 is for the structural schematic diagram of the balloon dilatation catheter of the embodiment of the present application two.
Fig. 7 is the cross-sectional view in Fig. 6 at A-A.
Fig. 8 is the stress schematic diagram in bond course during the filling process.
Fig. 9 is the stress schematic diagram of the bond course in contraction process.
Figure label explanation: 11, distal guide wire;12, sacculus dilating catheter;13, proximal guidewire;1, sealing-plug;2,PTFE Coating;3, proximal end push rod;4, sacculus;5, transition connecting rod;6, transition central axis;7, spring ring;8, filling channel;
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Referring to shown in Fig. 3, a kind of seal wire, including proximal end push rod 3 and flexible tip is provided on the proximal end push rod 3 Sacculus 4, the sacculus 4 are tightly connected with the proximal end push rod 3, and more preferably scheme is sacculus both ends bonding to the present embodiment On the proximal end push rod, the proximal end push rod 3 is hollow structure, is arranged inside and fills for what is inflated into the sacculus 4 Gas channel 8,3 proximal end of proximal end push rod form the inflating port inflated into the sacculus 4.
The proximal end push rod 3 is stainless steel material, and there is hollow filling channel 8 in inner cavity, for being connected to sacculus 4, while again It is the component for pushing seal wire push.
The seal wire has contraction state and expanded state, and when the seal wire is located at contraction state, the sacculus 4 is in folding Overlapping state, sacculus 4 are tightly attached to 3 outer surface of proximal end push rod;Refering to Fig. 4, when the seal wire is located at expanded state, the ball Capsule 4 is in the state of inflation, and the sacculus 4 is expanded into cryptomere sphere.
It further include sealing-plug 1 refering to Fig. 5, the sealing-plug 1 is made of flexibility elastic material, and the sealing-plug 1 is arranged On the inflating port.
Wherein sealing-plug 1 is flexibility elastic material, such as silica gel, TPU etc., and main function is to the close of filling channel 8 Envelope effect, keeps the pressure in sacculus 4, and when needing Filled Balloon 4, the syringe needle of pressurising is passed through in 1 flow in pipes of sealing-plug, Then pressurising is carried out, again extracts syringe needle after the completion of pressurising, sealing-plug 1 is voluntarily closed, and pressure is maintained in sacculus 4, when need When wanting release, it need to only insert the needle into pressure dump again.
Sealing-plug 1 on inflating port can effectively allow sacculus 4 to keep certain pressure.
PTFE coating 2 is coated on 3 outer surface of proximal end push rod.
PTFE coating 2 is coated in the push rod of proximal end, makes it have lubrication, is reduced 4 dilating catheter of sacculus and is pushed along seal wire When frictional force.
The flexible tip includes transition central axis 6, and the transition central axis 6 passes through transition connecting rod 5 and the proximal end The distal end of push rod 3 connects, and is arranged with spring ring 7 on the transition central axis 6.
7 surface of spring ring is coated with hydrophilic coating.
The transition central axis 6 is made of niti material, and the spring ring 7 is entwined for stainless steel wire.
Transition connecting rod 5 be proximal end push rod 3 and transition central axis 6 connection transition piece, material be metal or Plastic, The transition central axis 6 is niti material, is the lining components of spring ring 7, internal support force is provided for spring ring 7.Bullet Spring coil 7 is that soft stainless steel wire is entwined, and surface is coated with hydrophilic coating to reduce the frictional force with blood vessel, soft bullet Spring coil 7 can be used as the guiding of seal wire front end, can also carry out plastotype, and more conducively seal wire enters in blood vessel cavity.
Flexible tip is the soft plastic type point that the transition central axis 6 of niti material and the wire spring circle 7 of softness form End.
The sacculus 4 is any one material in silica gel material, TPU material, pebax material, PE material or nylon material Material is made, and the TPU (Thermoplastic polyurethanes) is entitled thermoplastic polyurethane elastomer rubber.
It is the extruding kept under expanded state with blood vessel using above-mentioned material main function, by using above-mentioned any one Material is planted to further increase frictional force, avoids moving when 4 dilating catheter of sacculus is extracted out.
Refering to Fig. 7, the seal wire, which is in, is located at contraction state, and the sacculus 4 is in the state for being folded into more valves, when sacculus 4 After inflation, sacculus 4 is gradually expanded from more valve folded states.
Embodiment one
It is used in the present embodiment, the seal wire of diameter 0.035inch, PTFE coating 2, proximal end is coated on proximal end push rod 3 3 center of push rod has the hole of 0.1-0.2mm to communicate with the sacculus 4 in wire distal position, and the end of proximal end push rod 3 has 20-90a hard The sealing-plug 1 of the silicone tube material of degree, the sacculus 4 of 3 distal end of proximal end push rod are silica gel compliance material, hardness 20-50a, sacculus 4 Both ends are bonded on proximal end push rod 3, and sacculus 4 is tightly attached to 3 surface of proximal end push rod before full, after sacculus 4 fills certain pressure It is expanded into cryptomere sphere, is tightly attached to blood vessel surface.
Embodiment two
Refering to Fig. 6, Fig. 7, structure is same as Example 1, the difference is that 4 material of sacculus is changed to nylon semi-compliant material Matter, and sacculus 4 forms more valve structures by folding and winding, can effectively reduce size when sacculus 4 is shunk, make 4 side of sacculus It will pass through narrow blood vessel, another difference from Example 1 is that 7 surface of spring ring is coated with hydrophilic coating, reduction and blood The frictional force of pipe.
If not having sacculus 4 as fixing on seal wire, 4 dilating catheter of sacculus of OTW type will be unable to fixation when withdrawing from and lead Silk causes seal wire also can and then be withdrawn by together in vitro, and if seal wire is withdrawn by and needs to take biggish time and efforts in vitro It is reinserted into specified position again.After the present invention increases sacculus 4 on seal wire, before the sacculus 4 of OTW type is withdrawn from, first Sacculus 4 on seal wire is filled and is fixed on blood vessel, then 4 dilating catheter of sacculus is withdrawn from vivo again, seal wire will not It can be drawn out with withdrawing from for conduit in vivo, largely facilitate using and operating for doctor.
The invention also includes be coated on outside the sacculus 4 using bond course made of elastic material, the bond course Distal end and the outer wall of the proximal end push rod 3 are tightly connected, and the outer wall of the proximal end of the bond course and the proximal end push rod 3, which seals, to be connected It connects;The sacculus 4 is foldable and winding forms more valve structures.
As shown in figure 8, being stress schematic diagram of the herein described seal wire in bond course during the filling process, arrow direction For the Impact direction of the bond course, after sacculus 4 is inflated, sacculus 4 is gradually expanded from more valve folded states, in the process, More valves of the sacculus 4 twist, and since bond course has very high elasticity, more valves drive the constraint during torsion Layer torsion.
As shown in figure 9, the stress for herein described 4 dilating catheter of sacculus bond course in contraction process is illustrated Figure, arrow direction are the Impact direction of the bond course, when sacculus 4 is shunk from swelling state, the bond course turn-back, One reverse rotation power and restoring force are generated to sacculus 4, the sacculus 4 is driven to shrink on one side, an edge contraction is in more valves, so that ball Capsule 4 can almost be completely recovered to original folded state.Only under the reverse rotation power and restoring force of bond course, there is certain memory The flap sacculus 4 of function can just be returned to the state of folding, and rotary force, which makes sacculus 4 reply three wings or multiple wing, convergent force, to be made It obtains sacculus 4 and returns the state fitted closely.
Sacculus 4 can still be retracted to the state of original very little size after repeatedly having expanded, and allow product multiple It is duplicate to be expanded into new lesion, that is, the cost of product is saved, also facilitates the operation of doctor, and complete in expansion It can easily withdraw in memotron and take out later.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention Protection scope within.Protection scope of the present invention is subject to claims.

Claims (9)

1. a kind of seal wire, which is characterized in that including proximal end push rod and flexible tip, it is provided with sacculus on the proximal end push rod, The sacculus is connect with the proximal end push rod seal, and the proximal end push rod is hollow structure, is arranged inside for the ball The filling channel of intracapsular inflation, proximal end push rod proximal end form the inflating port inflated into the sacculus.
2. seal wire as described in claim 1, which is characterized in that the seal wire has contraction state and expanded state, when described When seal wire is located at contraction state, the sacculus is in folded state, and sacculus is tightly attached to proximal end push rod outer surface;When the seal wire When positioned at expanded state, the sacculus is in the state of inflation, and the balloon inflation is at cryptomere sphere.
3. seal wire as described in claim 1, which is characterized in that further include sealing-plug, the sealing-plug is flexibility elasticity material Material is made, and the sealing-plug is arranged on the inflating port.
4. seal wire as described in claim 1, which is characterized in that be coated with PTFE coating on proximal end push rod outer surface.
5. seal wire as described in claim 1, which is characterized in that the flexible tip includes transition central axis, in the transition Mandrel is connect by transition connecting rod with the proximal end push rod, is arranged with spring ring on the transition central axis.
6. seal wire as claimed in claim 5, which is characterized in that the spring ring surface is coated with hydrophilic coating.
7. seal wire as claimed in claim 5, which is characterized in that the transition central axis is made of niti material, the spring Circle is entwined for stainless steel wire.
8. seal wire as described in claim 1, which is characterized in that the sacculus is foldable and winding forms more valve structures.
9. seal wire as described in claim 1, which is characterized in that the sacculus be silica gel material, TPU material, pebax material, Any one material in PE material or nylon material is made.
CN201811307758.4A 2018-11-05 2018-11-05 Guide wire Active CN109200436B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811307758.4A CN109200436B (en) 2018-11-05 2018-11-05 Guide wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811307758.4A CN109200436B (en) 2018-11-05 2018-11-05 Guide wire

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CN109200436A true CN109200436A (en) 2019-01-15
CN109200436B CN109200436B (en) 2024-03-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110292700A (en) * 2019-06-04 2019-10-01 兖矿新里程总医院 A kind of stomach tube guiding device
CN111729179A (en) * 2019-03-21 2020-10-02 杭州安杰思医学科技股份有限公司 Medical guiding device
CN112190826A (en) * 2020-09-21 2021-01-08 北京嘉和博龙医疗科技有限公司 Ureter expansion sacculus seal wire
CN116328163A (en) * 2023-05-22 2023-06-27 杭州亿科医疗科技有限公司 Spinous process balloon capable of avoiding spinous process wire entanglement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1132059A1 (en) * 2000-03-07 2001-09-12 Cordis Corporation Balloon catheter with balloon shoulders
CN107088258A (en) * 2017-05-27 2017-08-25 苏州朗特斯医疗科技有限公司 Elastic adjusting type single-chamber sacculus dilating catheter
CN107278160A (en) * 2015-05-26 2017-10-20 血管解决方案公司 Seal wire ligamentopexis
CN107929918A (en) * 2017-11-21 2018-04-20 北京积水潭医院 A kind of sacculus dilating catheter
CN209405463U (en) * 2018-11-05 2019-09-20 科塞尔医疗科技(苏州)有限公司 A kind of seal wire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1132059A1 (en) * 2000-03-07 2001-09-12 Cordis Corporation Balloon catheter with balloon shoulders
CN107278160A (en) * 2015-05-26 2017-10-20 血管解决方案公司 Seal wire ligamentopexis
CN107088258A (en) * 2017-05-27 2017-08-25 苏州朗特斯医疗科技有限公司 Elastic adjusting type single-chamber sacculus dilating catheter
CN107929918A (en) * 2017-11-21 2018-04-20 北京积水潭医院 A kind of sacculus dilating catheter
CN209405463U (en) * 2018-11-05 2019-09-20 科塞尔医疗科技(苏州)有限公司 A kind of seal wire

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111729179A (en) * 2019-03-21 2020-10-02 杭州安杰思医学科技股份有限公司 Medical guiding device
CN110292700A (en) * 2019-06-04 2019-10-01 兖矿新里程总医院 A kind of stomach tube guiding device
CN110292700B (en) * 2019-06-04 2021-06-15 兖矿新里程总医院 Stomach tube guiding device
CN112190826A (en) * 2020-09-21 2021-01-08 北京嘉和博龙医疗科技有限公司 Ureter expansion sacculus seal wire
CN116328163A (en) * 2023-05-22 2023-06-27 杭州亿科医疗科技有限公司 Spinous process balloon capable of avoiding spinous process wire entanglement
CN116328163B (en) * 2023-05-22 2023-08-11 杭州亿科医疗科技有限公司 Spinous process balloon capable of avoiding spinous process wire entanglement

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