CN106691679A - Pushing device of Schlemm's canal bracket - Google Patents
Pushing device of Schlemm's canal bracket Download PDFInfo
- Publication number
- CN106691679A CN106691679A CN201611206035.6A CN201611206035A CN106691679A CN 106691679 A CN106691679 A CN 106691679A CN 201611206035 A CN201611206035 A CN 201611206035A CN 106691679 A CN106691679 A CN 106691679A
- Authority
- CN
- China
- Prior art keywords
- stent
- tube
- schlemm
- support
- optical fiber
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 claims abstract description 67
- 238000002347 injection Methods 0.000 claims abstract description 39
- 239000007924 injection Substances 0.000 claims abstract description 39
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052737 gold Inorganic materials 0.000 claims description 6
- 239000010931 gold Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229920000249 biocompatible polymer Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 23
- 238000002513 implantation Methods 0.000 abstract description 17
- 239000003795 chemical substances by application Substances 0.000 abstract description 14
- 239000000835 fiber Substances 0.000 abstract description 6
- 210000001519 tissue Anatomy 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 208000020564 Eye injury Diseases 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 208000010412 Glaucoma Diseases 0.000 description 2
- 230000004410 intraocular pressure Effects 0.000 description 2
- 210000001742 aqueous humor Anatomy 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
- A61F9/0017—Introducing ophthalmic products into the ocular cavity or retaining products therein implantable in, or in contact with, the eye, e.g. ocular inserts
-
- 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
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00781—Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (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)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgery (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
本发明属于医疗器械领域，尤其是涉及一种施莱姆氏管支架的推送装置，其特征在于：包括导管、注射装置、激光发生器、光纤、推管，所述导管具有近端部分和远端部分，近端部分连接激光发生器和注射装置，远端部分设有推管和支架，推管可推动支架向前滑动，所述光纤置于导管内部，在植入支架过程中通过光纤头端发光可以判断支架植入的位置；注射装置可将粘弹剂在植入过程中通过导管注入施莱姆氏管，以扩张施莱姆氏管，便于导管和支架的进入，导管远端设有刻度线，实时指示推送距离，本发明的支架推送装置可以准确的将支架推至目标位置，操作简单。
The invention belongs to the field of medical devices, and in particular relates to a pushing device for a Schlemm's canal stent, which is characterized in that it includes a catheter, an injection device, a laser generator, an optical fiber, and a pushing tube, and the catheter has a proximal part and a distal The proximal part is connected to the laser generator and the injection device. The distal part is provided with a push tube and a stent. The push tube can push the stent to slide forward. The optical fiber is placed inside the catheter and passed through the fiber head during the implantation process The end light can judge the position of stent implantation; the injection device can inject viscoelastic agent into Schlemm's canal through the catheter during the implantation process, so as to expand Schlemm's canal and facilitate the entry of catheter and stent. There are scale lines to indicate the pushing distance in real time. The bracket pushing device of the present invention can accurately push the bracket to the target position, and the operation is simple.
Description
Technical field
The invention belongs to medical instruments field, more particularly, to a kind of pusher for applying Lai Mushi pipe holders.
Background technology
Glaucoma is the first blinding illness in eye of irreversibility in the world, and it is very harmful to vision, it is necessary to early intervention is controlled
Treat the further deterioration to prevent glaucomatous optic from damaging.Clinically uniquely confirm effective treatment method through evidence-based medicine EBM
It is exactly effectively to control intraocular pressure.
In recent years, research and clinic show that the operation of Schlemm pipe holders can effectively reduce intraocular pressure, with traditional operation
Mode is compared, no matter the probability of happening of Short-term Complications or long term complication is all substantially reduced, success rate of operation has also been carried
Rise.Such operation realizes the transformation that aqueous humor short circuit is performed the operation to aqueous passage bypass operation, has greatly promoted glaucoma minimally invasiveization
The process of operation.
For the operation of Schlemm pipe holders, how support is accurately and effectively delivered to Schlemm pipes target location to operation
Effect have directly influence.The mode complex operation of current transfer gantry, easily damages and can not be accurate to tissue
The position of stenter to implant really is estimated, so seeking a kind of simple accurately stent pushing device turns into current desired.
The content of the invention
The problem to be solved in the present invention is to provide a kind of pusher for applying Lai Mushi pipe holders, and Lai Mushi is applied for expanding
In the operation of pipe, can be accurately by stent pushing to the target location for applying Lai Mushi pipes and simple to operate, being conducive to promoting should
With.
The technical solution adopted in the present invention is：
A kind of pusher for applying Lai Mushi pipe holders, it is characterised in that：Including conduit, injection device, laser generator, light
Fibre, the conduit includes proximal part and distal portions, and the proximal part is divided into optical fibre channel, injection passage, the optical fiber
Path connects laser generator by optical fiber interface, and the injection passage connects injection device, and the proximal part is provided with connection
Device, the path that the optical fibre channel, injection passage are converted into being connected with distal portions by connector, the distal portions
The ejector sleeve and support slided along conduit are provided with, the ejector sleeve is arranged between support, connector and can promote bracket slide；It is described
Optical fiber is arranged at catheter interior, and its tail end is in optical fibre channel and is connected on optical fiber interface, and its head end is in distal portions
Near ports.
The ejector sleeve is flexible ejector sleeve, and its internal diameter is 0.1-0.25mm, and external diameter is 0.2-0.35mm, and length is 1mm-
40mm。
The internal diameter of the support is 0.1-0.25mm, and external diameter is 0.2-0.35mm, and length is 1mm-40mm, the support
Making material includes biocompatibility high polymer, stainless steel, gold, silver, platinum, nickel.
The conduit is flexible conduit, and its external diameter is 0.1-0.25mm, and length is 20-200mm.
The distal portions of the conduit indicate scale.
The connector is threeway.
The diameter of the ejector sleeve is not less than stent diameter.
The ejector sleeve includes inner and outer tubes, and outer length of tube is more than inner tube length, and inner tube external diameter is not less than support external diameter, pushes away
The outer tube diameter of pipe is more than support external diameter.
The ejector sleeve external diameter is more than support external diameter, there is ledge structure inside ejector sleeve, and ejector sleeve inside path section diameter is less than
Support external diameter, ejector sleeve inside is big, and footpath section is with diameter greater than or equal to support external diameter and this partial-length is not less than stent length.
The rack surface is provided with smooth biodegradable coating.
Beneficial effects of the present invention are：
The present invention provides a kind of pusher for applying Lai Mushi pipe holders, and the pusher simple structure is easy to process, optical fiber
In the presence of the position that support can be in real time indicated in implantation process, brought great convenience to operation, the injection of viscoelastic agent can
Lai Mushi pipes are applied to expand, prevents from damaging part tissue of eye during pushing, and push process simply, beneficial to popularization.
Brief description of the drawings
Fig. 1 is the structural representation that Lai Mushi pipe holder pushers are applied in the embodiment of the present invention 1；
Fig. 2 is the structural representation that Lai Mushi pipe holder pushers are applied in the embodiment of the present invention 2；
Fig. 3 is the structural representation that Lai Mushi pipe holder pushers are applied in the embodiment of the present invention 3；
Fig. 4 is the structural representation that Lai Mushi pipe holder pushers are applied in the embodiment of the present invention 4.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
In figure, 1- laser generators, 2- optical fiber, 3- conduits, 4- ejector sleeves, 5- supports, 6- threeways, 7- injection devices, 8- inner tubes, 9-
Outer tube, 10- biodegradable coatings.
Embodiment 1
As shown in figure 1, the pusher for applying Lai Mushi pipe holders of the invention, including conduit 3, injection device 7, laser generator
1st, optical fiber 2, ejector sleeve 4, support 5, threeway 6.
Conduit 3 has proximal part and distal portions, and proximal part has two paths, and one of path is logical for injection
Road, injection passage connection injection device 7, viscoelastic agent can be injected into injection device 7 conduit 3 in implantation process, by conduit 3
The port injection of distal portions is applied in Lai Mushi pipes, has been expanded and has been applied Lai Mushi pipes, beneficial to the entrance of conduit 3 and support 5, while keeping away
Injury tissue is exempted from；Another path is optical fibre channel, and optical fiber 2 is placed in the optical fibre channel of conduit 3, and optical fibre channel passes through optical fiber
Interface connects laser generator 1；The head-end location of optical fiber 2 is shown near the termination of distal portions, is pushing support 5
During the light that is sent by the head end of optical fiber 2 can be provided a great convenience to operation with Real Time Observation to the position of support 5,
The tail end of optical fiber 2 is in the proximal fiber path of conduit 3 and is connected on optical fiber interface.
In the present embodiment, a diameter of 0.125mm of optical fiber 2 of use uses wavelength for 660nm red visibles, by
Low-power laser generator 1 sends, and the light of this wavelength is to eye injury very little.
The path that the two paths of the proximal part of conduit 3 are converted into being connected with distal portions by threeway 6.In conduit
Distal portions indicate graduation mark, can indicate to push distance in real time；The distal portions of conduit 3 are provided with ejector sleeve 4 and support 5, ejector sleeve 4
Be arranged between support 5, threeway 6, ejector sleeve 4 and support 5 can on conduit 3 it is front and rear slidably, support 5 in the front side of ejector sleeve 4,
Ejector sleeve 4 can promote the forward slip of support 5, and the diameter of ejector sleeve 4 is consistent with the diameter dimension of support 5 or slightly larger than the diameter of support 5；In branch
In the implantation process of frame 5, support 5 is pushed into target location by ejector sleeve 4.
In the present embodiment, ejector sleeve 4 and support 5 are directly sleeved on outside conduit 3；Wherein, ejector sleeve 4 uses flexible ejector sleeve,
Its internal diameter is 0.1-0.25mm, and external diameter is 0.2-0.35mm, and length is 1mm-40mm；The internal diameter of support 5 is 0.1-0.25mm, outward
Footpath is 0.2-0.35mm, and length is 1mm-40mm, the making material of support 5 include biocompatibility high polymer, stainless steel, gold,
Silver, platinum, nickel etc.；Conduit 3 is flexible conduit, and external diameter is 0.1-0.25mm, and length is 20-200mm.
The process for pushing support is as follows：The distal portions of conduit 3 are entered in applying Lai Mushi pipes, note in Lai Mushi pipes to being applied
Penetrate viscoelastic agent expansion and apply Lai Mushi pipes, marginal not penetrates viscoelastic agent side propulsion conduit 3, and ejector sleeve 4 and support 5 enter together with conduit 3
Lai Mushi pipes are applied, the light that optical fiber 2 sends in whole process can indicate the position of support 5, the graduation mark according to conduit 3 can be with
Real time inspection pushes distance, reaches when near the target location of the implantation of support 5, and support 5 is pushed into target location with ejector sleeve 4, when
When support 5 reaches target location, ejector sleeve 4 is withdrawn from together with conduit 3.
Embodiment 2
As shown in Fig. 2 the pusher for applying Lai Mushi pipe holders of the invention, including conduit 3, injection device 7, laser generator
1st, optical fiber 2, ejector sleeve 4, threeway 6.
Conduit 3 has proximal part and distal portions, and proximal part has two paths, and one of path is logical for injection
Road, injection passage connection injection device 7, viscoelastic agent can be injected into injection device 7 conduit 3 in implantation process, by conduit 3
The port injection of distal portions is applied in Lai Mushi pipes, has been expanded and has been applied Lai Mushi pipes, beneficial to the entrance of conduit 3 and support 5, while keeping away
Injury tissue is exempted from；Another path is optical fibre channel, and optical fiber 2 is placed in the optical fibre channel of conduit 3, and optical fibre channel passes through optical fiber
Interface connects laser generator 1；The head-end location of optical fiber 2 is shown near the termination of distal portions, is pushing support 5
During the light that is sent by the head end of optical fiber 2 can be provided a great convenience to operation with Real Time Observation to the position of support 5,
The tail end of optical fiber 2 is in the proximal fiber path of conduit 3 and is connected on optical fiber interface.
In the present embodiment, a diameter of 0.125mm of optical fiber 2 of use uses wavelength for 660nm red visibles, by
Low-power laser generator 1 sends, and the light of this wavelength is to eye injury very little.
The path that the two paths of the proximal part of conduit 3 are converted into being connected with distal portions by threeway 6.In conduit
Distal portions indicate graduation mark, can indicate to push distance in real time；The distal portions of conduit 3 are provided with ejector sleeve 4 and support 5, ejector sleeve 4
Be arranged between support 5, threeway 6, ejector sleeve 4 and support 5 can on conduit 3 it is front and rear slidably, support 5 in the front side of ejector sleeve 4,
Ejector sleeve 4 can promote the forward slip of support 5；Ejector sleeve 4 is made up of two parts, inner tube 8 and outer tube 9, inner tube 8 and outer tube 9 by hot pressing,
The mode of pyrocondensation or bonding is assembled together, and the length of outer tube 9 is more than the length of inner tube 8.The external diameter of inner tube 8 of ejector sleeve 4 is not less than support 5
External diameter, the outer tube diameter of ejector sleeve 4 is slightly larger than the external diameter of support 5, and during push, support 5 is completely wrapped in the outer tube 9 of ejector sleeve 4 just.
Because the surface of support 5 is out-of-flatness structure, pushes and prevent the surface of support 5 by the way of in be wrapped in for support 5 by ejector sleeve 4
Corner angle scratch tissue.In the implantation process of support 5, support 5 is pushed into target location by ejector sleeve 4.
In the present embodiment, ejector sleeve 4 and support 5 are directly sleeved on outside conduit 3；Wherein, ejector sleeve 4 uses flexible ejector sleeve,
Its internal diameter is 0.1-0.25mm, and external diameter is 0.2-0.35mm, and length is 1mm-40mm；The internal diameter of support 5 is 0.1-0.25mm, outward
Footpath is 0.2-0.35mm, and length is 1mm-40mm, the making material of support 5 include biocompatibility high polymer, stainless steel, gold,
Silver, platinum, nickel etc.；Conduit 3 is flexible conduit, and external diameter is 0.1-0.25mm, and length is 20-200mm.
The process for pushing support is as follows：The distal portions of conduit 3 are entered in applying Lai Mushi pipes, note in Lai Mushi pipes to being applied
Penetrate viscoelastic agent expansion and apply Lai Mushi pipes, marginal not penetrates viscoelastic agent side propulsion conduit 3, and ejector sleeve 4 and support 5 enter together with conduit 3
Lai Mushi pipes are applied, the light that optical fiber 2 sends in whole process can indicate the position of support 5, the graduation mark according to conduit 3 can be with
Real time inspection pushes distance, reaches when near the target location of the implantation of support 5, and support 5 is pushed into target location with ejector sleeve 4, when
When support 5 reaches target location, ejector sleeve 4 is withdrawn from together with conduit 3.
Embodiment 3
As shown in figure 3, the pusher for applying Lai Mushi pipe holders of the invention, including conduit 3, injection device 7, laser generator
1st, optical fiber 2, ejector sleeve 4, threeway 6.
Conduit 3 has proximal part and distal portions, and proximal part has two paths, and one of path is logical for injection
Road, injection passage connection injection device 7, viscoelastic agent can be injected into injection device 7 conduit 3 in implantation process, by conduit 3
The port injection of distal portions is applied in Lai Mushi pipes, has been expanded and has been applied Lai Mushi pipes, beneficial to the entrance of conduit 3 and support 5, while keeping away
Injury tissue is exempted from；Another path is optical fibre channel, and optical fiber 2 is placed in the optical fibre channel of conduit 3, and optical fibre channel passes through optical fiber
Interface connects laser generator 1；The head-end location of optical fiber 2 is shown near the termination of distal portions, is pushing support 5
During the light that is sent by the head end of optical fiber 2 can be provided a great convenience to operation with Real Time Observation to the position of support 5,
The tail end of optical fiber 2 is in the proximal fiber path of conduit 3 and is connected on optical fiber interface.
In the present embodiment, a diameter of 0.125mm of optical fiber 2 of use uses wavelength for 660nm red visibles, by
Low-power laser generator 1 sends, and the light of this wavelength is to eye injury very little.
The path that the two paths of the proximal part of conduit 3 are converted into being connected with distal portions by threeway 6.In conduit
Distal portions indicate graduation mark, can indicate to push distance in real time；The distal portions of conduit 3 are provided with ejector sleeve 4 and support 5, ejector sleeve 4
Be arranged between support 5, threeway 6, ejector sleeve 4 and support 5 can on conduit 3 it is front and rear slidably, support 5 in the front side of ejector sleeve 4,
Ejector sleeve 4 can promote the forward slip of support 5；The external diameter of ejector sleeve 4 is more than the external diameter of support 5, and inside has ledge structure, and internal path section is straight
Footpath is less than the external diameter of support 5, and internal big footpath section is with diameter greater than or equal to the external diameter of support 5, and this partial-length is grown not less than support 5
Degree, during push, support 5 is coated on big footpath intersegmental part but does not enter path section.Because the surface of support 5 is out-of-flatness structure,
Using ejector sleeve 4 support 5 is wrapped in by the way of push prevent the surface of support 5 corner angle scratch tissue.It was implanted into support 5
Support 5 is pushed into target location by Cheng Zhong, ejector sleeve 4.
In the present embodiment, ejector sleeve 4 and support 5 are directly sleeved on outside conduit 3；Wherein, ejector sleeve 4 uses flexible ejector sleeve,
Its internal diameter is 0.1-0.25mm, and external diameter is 0.2-0.35mm, and length is 1mm-40mm；The internal diameter of support 5 is 0.1-0.25mm, outward
Footpath is 0.2-0.35mm, and length is 1mm-40mm, the making material of support 5 include biocompatibility high polymer, stainless steel, gold,
Silver, platinum, nickel etc.；Conduit 3 is flexible conduit, and external diameter is 0.1-0.25mm, and length is 20-200mm.
The process for pushing support is as follows：The distal portions of conduit 3 are entered in applying Lai Mushi pipes, note in Lai Mushi pipes to being applied
Penetrate viscoelastic agent expansion and apply Lai Mushi pipes, marginal not penetrates viscoelastic agent side propulsion conduit 3, and ejector sleeve 4 and support 5 enter together with conduit 3
Lai Mushi pipes are applied, the light that optical fiber 2 sends in whole process can indicate the position of support 5, the graduation mark according to conduit 3 can be with
Real time inspection pushes distance, reaches when near the target location of the implantation of support 5, and support 5 is pushed into target location with ejector sleeve 4, when
When support 5 reaches target location, ejector sleeve 4 is withdrawn from together with conduit 3.
Embodiment 4
As shown in figure 4, the pusher for applying Lai Mushi pipe holders of the invention, including conduit 3, injection device 7, laser generator
1st, optical fiber 2, ejector sleeve 4, threeway 6.
Conduit 3 has proximal part and distal portions, and proximal part has two paths, and one of path is logical for injection
Road, injection passage connection injection device 7, viscoelastic agent can be injected into injection device 7 conduit 3 in implantation process, by conduit 3
The port injection of distal portions is applied in Lai Mushi pipes, has been expanded and has been applied Lai Mushi pipes, beneficial to the entrance of conduit 3 and support 5, while keeping away
Injury tissue is exempted from；Another path is optical fibre channel, and optical fiber 2 is placed in the optical fibre channel of conduit 3, and optical fibre channel passes through optical fiber
Interface connects laser generator 1；The head-end location of optical fiber 2 is shown near the termination of distal portions, is pushing support 5
During the light that is sent by the head end of optical fiber 2 can be provided a great convenience to operation with Real Time Observation to the position of support 5,
The tail end of optical fiber 2 is in the proximal fiber path of conduit 3 and is connected on optical fiber interface.
In the present embodiment, a diameter of 0.125mm of optical fiber 2 of use uses wavelength for 660nm red visibles, by
Low-power laser generator 1 sends, and the light of this wavelength is to eye injury very little.
The path that the two paths of the proximal part of conduit 3 are converted into being connected with distal portions by threeway 6.In conduit
Distal portions indicate graduation mark, can indicate to push distance in real time；The distal portions of conduit 3 are provided with ejector sleeve 4 and support 5, ejector sleeve 4
Be arranged between support 5, threeway 6, ejector sleeve 4 and support 5 can on conduit 3 it is front and rear slidably, support 5 in the front side of ejector sleeve 4,
Ejector sleeve 4 can promote the diameter of the forward slip of support 5, ejector sleeve 4 to be not less than the diameter of support 5；The surface of support 5 be provided with it is smooth can
Degraded coating 10, because the surface of support 5 is out-of-flatness structure, the coating on the surface of support 5 is prevented in the table of implantation process medium-height trestle 5
The corner angle in face scratch tissue.The coating is capable of being fast degraded, and the implantation eyes one week of support 5 are interior, and coating is gradually degraded.In support 5
In implantation process, support 5 is pushed into target location by ejector sleeve 4.
In the present embodiment, ejector sleeve 4 and support 5 are directly sleeved on outside conduit 3；Wherein, ejector sleeve 4 uses flexible ejector sleeve,
Its internal diameter is 0.1-0.25mm, and external diameter is 0.2-0.35mm, and length is 1mm-40mm；The internal diameter of support 5 is 0.1-0.25mm, outward
Footpath is 0.2-0.35mm, and length is 1mm-40mm, the making material of support 5 include biocompatibility high polymer, stainless steel, gold,
Silver, platinum, nickel etc.；Conduit 3 is flexible conduit, and external diameter is 0.1-0.25mm, and length is 20-200mm.
The process for pushing support is as follows：The distal portions of conduit 3 are entered in applying Lai Mushi pipes, note in Lai Mushi pipes to being applied
Penetrate viscoelastic agent expansion and apply Lai Mushi pipes, marginal not penetrates viscoelastic agent side propulsion conduit 3, and ejector sleeve 4 and support 5 enter together with conduit 3
Lai Mushi pipes are applied, the light that optical fiber 2 sends in whole process can indicate the position of support 5, the graduation mark according to conduit 3 can be with
Real time inspection pushes distance, reaches when near the target location of the implantation of support 5, and support 5 is pushed into target location with ejector sleeve 4, when
When support 5 reaches target location, ejector sleeve 4 is withdrawn from together with conduit 3.
4 embodiments of the invention have been described in detail above, but content is only presently preferred embodiments of the present invention, no
Can be considered as limiting practical range of the invention.All impartial changes made according to the present patent application scope and improvement etc.,
Should still belong within patent covering scope of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206035.6A CN106691679A (en) | 2016-12-23 | 2016-12-23 | Pushing device of Schlemm's canal bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206035.6A CN106691679A (en) | 2016-12-23 | 2016-12-23 | Pushing device of Schlemm's canal bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106691679A true CN106691679A (en) | 2017-05-24 |
Family
ID=58903202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611206035.6A Pending CN106691679A (en) | 2016-12-23 | 2016-12-23 | Pushing device of Schlemm's canal bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106691679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174399A (en) * | 2017-05-27 | 2017-09-19 | 天津优视眼科技术有限公司 | What a kind of interior road was implemented applies Lai Mushi pipes operation induction system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965211A (en) * | 2008-03-05 | 2011-02-02 | 伊万提斯公司 | Methods and apparatus for treating glaucoma |
| CN102238926A (en) * | 2008-12-05 | 2011-11-09 | 伊万提斯公司 | Methods and devices for delivering ocular implants into the eye |
| CN203227188U (en) * | 2013-04-07 | 2013-10-09 | 王宁利 | Schlemm elastic microcathether |
| CN103932841A (en) * | 2011-06-16 | 2014-07-23 | 王宁利 | Schlemm canal expandable stent and combination bodies thereof |
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2016
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