CN106691683A - Schlemm's canal support with traction and pushing functions - Google Patents
Schlemm's canal support with traction and pushing functions Download PDFInfo
- Publication number
- CN106691683A CN106691683A CN201610843002.6A CN201610843002A CN106691683A CN 106691683 A CN106691683 A CN 106691683A CN 201610843002 A CN201610843002 A CN 201610843002A CN 106691683 A CN106691683 A CN 106691683A
- Authority
- CN
- China
- Prior art keywords
- chamber
- conduit
- traction
- push function
- lai mushi
- 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
- 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
-
- 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
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Prostheses (AREA)
Abstract
A Schlemm's canal support with traction and pushing functions belongs to the technical field of eye surgery supports and comprises a support body and a pushing device connected with the support body; the support body is of double-cavity tube structure including a large cavity and a small cavity, the face of the large cavity in contact with the small cavity is provided with an elongated hole, the upper end of the large cavity is provided with a gap running through from front to tail, two sidewalls of the gap of the large cavity are provided with cuts, the tail end of the small cavity is provided with a conical hole, the pushing device comprises a catheter, a guide wire and an injector, the catheter includes a proximal portion and a distal portion, the proximal portion is connected to the injector, an end hole of the distal portion is in conical-head opening shape mating with the conical hole in the tail end of the small cavity, and the guide wire is arranged in the catheter and the small cavity. The Schlemm's canal support with traction and pushing functions is applicable to the surgery of Schlemm's canal dilation, can dilate a Schlemm's canal for a long time to reduce intraocular pressure and treat glaucoma, ensures simplicity in surgical operation, provides a simple and easy surgical means for surgeons and is easy to popularize and apply.
Description
Technical field
Support technology field is used the present invention relates to a kind of operated eye, it is especially a kind of to apply Lay with traction push function
Mu Shi pipe holders.
Background technology
Glaucoma is a kind of common ophthalmology disease, is to cause one of three big diseases causing blindnesses of mankind's blindness.Glaucoma is led to
Normally due to the dynamic equilibrium of aqueous humor circulation receives destruction, aqueous humor drainage is not smooth, causes intraocular pressure to raise, and lasting Bulbi hypertonia can
Infringement is brought with to eyeball each several part tissue and visual function, is such as treated not in time, the visual field can be arrived with total loss and be blinded.
Under normal circumstances, aqueous humor is discharged to anterior chamber from back room, by trabecular network, into Lai Mushi pipes are applied, then from applying lime
Family name's pipe is discharged into veins of sclera system and enters blood circulation.Occur narrow or when collapsing when Lai Mushi pipes tube chamber is applied, can cause
Aqueous humor drainage obstacle, so that intraocular pressure is raised, triggers glaucoma.
Mainly include Viscocanalostomy in the operation that Lai Mushi governances treatment glaucoma is applied clinically by expansion
（viscocanalostomy）And canaloplasty（canaloplasty）.Viscocanalostomy is by applying Lai Mushi
Viscoelastic agent is injected in pipe and applies the purpose of Lai Mushi pipes to reach expansion, but viscoelastic agent cannot long-term existence in lesions position, effect
It is really of short duration, cannot be played a role if being flushed away.Canaloplasty is very high to the technical requirements of doctor, and surgical outcome
Body otherness is big, and reproducibility is poor, and with complication.
The content of the invention
Present invention offer is a kind of to apply Lai Mushi pipe holders with traction push function, to solve to be carried in above-mentioned background technology
The problem for going out.Applied for expanding in the operation of Lai Mushi pipes, to reduce intraocular pressure, treat glaucoma.A kind of letter is provided to doctor
Single easy-operating modus operandi, is conducive to popularization and application.
Technical problem solved by the invention is realized using following technical scheme：It is of the invention a kind of with traction push work(
Can apply Lai Mushi pipe holders, including rack body and the pusher of rack body connection, described rack body is two-chamber
Tubular structure, described two-chamber includes big chamber and small chamber, and described big chamber is provided with waist hole, described big chamber with small chamber contact surface
Upper end is provided with the gap for traversing head and the tail, and the two side of described big chamber gap is provided with otch, described small chamber end end
With a cone mouth；Described pusher includes conduit, seal wire and injection device, and described conduit includes proximal part and remote
End part, described proximal part connection injection device, the port of described distal portions is conehead formula opening shape, and described leads
The conehead formula opening shape of pipe distal end coordinates with small chamber end cone mouth；Described seal wire is located in conduit and small chamber.
The longitudinal section of described described rack body is circular or oval.
Described waist hole is evenly distributed on big chamber and the contact surface in small chamber.
Described otch is circular arc, rectangle, trapezoidal or kidney ellipsoid.
The described a diameter of 0.1-0.25mm in big chamber, lumen diameter is 0.01-0.15mm, and stent length is 1mm-40mm.
The housing of described rack body be biocompatibility high polymer housing, Stainless Steel Shell, golden shell body, silver-colored housing,
Platinum housing or nickel housing.
Described rack body is provided with biocompatible hydrophilic coating, and described biocompatible hydrophilic coating includes controlling
The property treated medication coat and polymeric coating layer.
Described conduit is flexible and transparent conduit, and described catheter outer diameter is 0.1-0.25mm, and length is 1-200mm.
The a diameter of 0.01-0.10mm of described seal wire, length is 20-100mm.
Beneficial effects of the present invention are：Applied for expanding in the operation of Lai Mushi pipes, Lay is applied in expansion of playing that can be permanent
The effect of Mu Shi pipes, to reduce intraocular pressure, treats glaucoma, and operation technique is simple, and reproducibility is strong, and hair disease incidence is low,
A kind of modus operandi simple to operation is provided to doctor, is conducive to popularization and application, in addition, traversing head and the tail on described big chamber
Gap be conducive to the Stress Release of support, reduce operation risk.
Brief description of the drawings
Fig. 1 is the front view of structure of the present invention
Fig. 2 is A partial enlarged drawings in Fig. 1
Fig. 3 is longitudinal sectional view of the invention.
Specific embodiment
The present invention is described further below in conjunction with accompanying drawing：It is a kind of to apply Lai Mushi pipe branch with traction push function
Frame, including rack body 3 and the pusher of the connection of rack body 3, described rack body 3 is two-chamber tubular structure, described
Two-chamber include big chamber 5 and small chamber 7, described big chamber 5 is provided with waist hole 6 with the contact surface of small chamber 7, and the described upper end of big chamber 5 sets
The two side for having the gap 8 for traversing head and the tail, the described gap 8 of big chamber 5 is provided with otch 4, the described end end of small chamber 7 tool
There is a cone mouth；Described pusher includes conduit 2, seal wire 1 and injection device, described conduit 2 include proximal part and
Distal portions, described proximal part connection injection device, the port of described distal portions is conehead formula opening shape, described
The conehead formula opening shape of the distal end of conduit 2 coordinates with the end cone mouth of small chamber 7；Described seal wire 1 is located in conduit 2 and small chamber 7.Institute
The longitudinal section of the described rack body 3 stated is circular or oval.Described waist hole 6 is evenly distributed on big chamber 5 with small chamber 7
On contact surface.Described otch 4 is circular arc, rectangle, trapezoidal or kidney ellipsoid.The described a diameter of 0.1-0.25mm in big chamber 5 is small
The a diameter of 0.01-0.15mm in chamber 7, stent length is 1mm-40mm.The housing of described rack body 3 is high poly- biocompatibility
Thing housing, Stainless Steel Shell, golden shell body, silver-colored housing, platinum housing or nickel housing.Described rack body 3 is provided with bio-compatible
Property hydrophilic coating, described biocompatible hydrophilic coating includes curative drug coating and polymeric coating layer.Described conduit 2
It is flexible and transparent conduit 2, the described external diameter of conduit 2 is 0.1-0.25mm, and length is 1-200mm.Described seal wire 1 is a diameter of
0.01-0.10mm, length is 20-100mm.
Described otch 4 is two kinds of circular arc and kidney ellipsoid, using laser cutting.For circular-arc cut 4, adjacent two
Apart from being 0.60mm, arc radius are 0.23mm to otch 4.For oval v notch v, oval radius is 0.08mm, oval central moment
It is 0.10mm, adjacent two otch 4 is apart from being 0.60mm.Circular arc cutaway and oval v notch v on support do not have stress concentration to imitate
Should, prevent tear, it is ensured that tension is slight and turns round control stability；There is edge to lead for circular arc cutaway and oval v notch v on support
The inclined-plane of the direction of advance of pipe 2, it is ensured that the transporting of support, prevents implantation process from being damaged to lesions position；The otch 4 of conduit 2
For bilateral cuts, while proof strength, hollow out ratio is provided to greatest extent, be conducive to aqueous humor to discharge.
The gap 8 through body on described rack body 3, the width of gap 8 is 0.05mm.The presence of gap 8 is improved
The elastic deformation ability of support, is conducive to Stress Release, while improve the hollow out ratio of support, is conducive to the discharge of aqueous humor.
The described length of conduit 2 is 20mm.The remote port of conduit 2 is conehead shape, and the depth of conehead is 0.23mm, conehead
Big footpath is 0.15mm, and the path of conehead is 0.08mm.The conehead of conduit 2 and the cone mouth size of stent ends are adapted, can be by
The conehead of conduit 2 is inserted at the cone mouth of stent ends, and conduit 2 has a push power to support in implantation process, pushes support
Advance.The wherein conehead of conduit 2 is more bigger than the cone mouth taper of stent ends, can so make conduit 2 depart from support when
Easily, prevent stuck.The conehead leading portion of conduit 2 is non-closed state, is a unlimited hole, the connection injection of the near-end of conduit 2
Device, during stent pushing, viscoelastic agent is injected conduit 2 by injection device, and viscoelastic agent is by the hole at the distal end conehead of conduit 2
In applying Lai Mushi pipes with the injection of the otch 4 of support, play a part of expansion and apply Lai Mushi pipes, contribute to the push of support.
The described length 20 of seal wire 1 is 25mm, and the diameter 21 of seal wire 1 is 0.05mm, and seal wire 1 can set bending, and curved
Shape includes being not limited to one kind, and different bendings can be set according to different human eye sizes.In implantation process, support is along seal wire 1
Bending track is pushed into, can preferably meet the flexibility for applying Lai Mushi pipes, it is to avoid the injury to applying Lai Mushi pipes,
Increased the torsion control of push.
The process for being implanted into support is as follows：First the distal end conehead of conduit 2 is inserted at the end cone mouth of small chamber 7, complete support and
The assembling of conduit 2, then passes through conduit 2 and support by seal wire 1, completes the assembling of conduit 2, seal wire 1 and support.In implantation process
In, by injection device to viscoelastic agent is injected in conduit 2, viscoelastic agent is entered by the otch 4 of conduit 2 and support applies Lai Mushi pipes
In play a part of to expand it, support is implanted into when viscoelastic agent is beaten, in whole process, before track of the support along seal wire 1
Enter, seal wire 1 plays a part of guide, conduit 2 plays push in stent ends.After support reaches specified location, by conduit 2
Drawn back with seal wire 1.
Finally illustrate, choose above-described embodiment and it has been described in detail and description is to preferably say
The technical scheme of bright patent of the present invention, is not intended to be confined to shown details.Those skilled in the art is to of the invention
Technical scheme is modified or is replaced on an equal basis, without deviating from the objective and scope of technical solution of the present invention, all should be covered at this
In the middle of the right of invention.
Claims (9)
1. it is a kind of to apply Lai Mushi pipe holders, including the push that rack body and rack body are connected with traction push function
Device, it is characterised in that：Described rack body is two-chamber tubular structure, and described two-chamber includes big chamber and small chamber, described
Big chamber and small chamber contact surface are provided with waist hole, and described big chamber upper end is provided with the gap for traversing head and the tail, described big chamber gap
Two side is provided with otch, and described small chamber end end has a cone mouth；Described pusher includes conduit, seal wire
And injection device, described conduit includes proximal part and distal portions, and described proximal part connection injection device is described
The port of distal portions is conehead formula opening shape, and the conehead formula opening shape of described distal end of catheter coordinates with small chamber end cone mouth；
Described seal wire is located in conduit and small chamber.
It is 2. according to claim 1 a kind of to apply Lai Mushi pipe holders with traction push function, it is characterised in that：It is described
The longitudinal section of rack body be circular or oval.
It is 3. according to claim 1 a kind of to apply Lai Mushi pipe holders with traction push function, it is characterised in that：It is described
Waist hole be evenly distributed on big chamber and the contact surface in small chamber.
It is 4. according to claim 1 a kind of to apply Lai Mushi pipe holders with traction push function, it is characterised in that：It is described
Otch be circular arc, rectangle, trapezoidal or kidney ellipsoid.
It is 5. according to claim 1 a kind of to apply Lai Mushi pipe holders with traction push function, it is characterised in that：It is described
The a diameter of 0.1-0.25mm in big chamber, lumen diameter is 0.01-0.15mm, and stent length is 1mm-40mm.
It is 6. according to claim 1 a kind of to apply Lai Mushi pipe holders with traction push function, it is characterised in that：It is described
Rack body housing be biocompatibility high polymer housing, Stainless Steel Shell, golden shell body, silver-colored housing, platinum housing or nickel shell
Body.
It is 7. according to claim 1 a kind of to apply Lai Mushi pipe holders with traction push function, it is characterised in that：It is described
Rack body be provided with biocompatible hydrophilic coating, described biocompatible hydrophilic coating includes curative drug coating
And polymeric coating layer.
It is 8. according to claim 1 a kind of to apply Lai Mushi pipe holders with traction push function, it is characterised in that：It is described
Conduit be flexible and transparent conduit, described catheter outer diameter is 0.1-0.25mm, and length is 1-200mm.
It is 9. according to claim 1 a kind of to apply Lai Mushi pipe holders with traction push function, it is characterised in that：It is described
The a diameter of 0.01-0.10mm of seal wire, length is 20-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843002.6A CN106691683A (en) | 2016-09-23 | 2016-09-23 | Schlemm's canal support with traction and pushing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843002.6A CN106691683A (en) | 2016-09-23 | 2016-09-23 | Schlemm's canal support with traction and pushing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106691683A true CN106691683A (en) | 2017-05-24 |
Family
ID=58940369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610843002.6A Withdrawn CN106691683A (en) | 2016-09-23 | 2016-09-23 | Schlemm's canal support with traction and pushing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106691683A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111803273A (en) * | 2020-08-20 | 2020-10-23 | 宋一帆 | Schlemm's tube expansion stent and expansion method |
| CN114569325A (en) * | 2022-01-18 | 2022-06-03 | 苏州朗目医疗科技有限公司 | Injection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868202A (en) * | 2007-11-20 | 2010-10-20 | 伊万提斯公司 | Ocular implant delivery system and method |
| CN102333506A (en) * | 2008-12-22 | 2012-01-25 | 格里沙贝眼科研究基金会 | Implant for inserting into the schlemm's canal of an eye |
| CN202821800U (en) * | 2012-05-04 | 2013-03-27 | 中国人民解放军第三军医大学第一附属医院 | Schlemm's canal duct using for operations |
| CN203227188U (en) * | 2013-04-07 | 2013-10-09 | 王宁利 | Schlemm elastic microcathether |
| CN203263905U (en) * | 2013-04-08 | 2013-11-06 | 天津市塑料研究所有限公司 | Double-cavity peritoneal dialysis built-in tube |
| CN206424205U (en) * | 2016-09-23 | 2017-08-22 | 天津优视眼科技术有限公司 | Lai Mushi pipe holders are applied with traction push function |
-
2016
- 2016-09-23 CN CN201610843002.6A patent/CN106691683A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868202A (en) * | 2007-11-20 | 2010-10-20 | 伊万提斯公司 | Ocular implant delivery system and method |
| CN102333506A (en) * | 2008-12-22 | 2012-01-25 | 格里沙贝眼科研究基金会 | Implant for inserting into the schlemm's canal of an eye |
| CN202821800U (en) * | 2012-05-04 | 2013-03-27 | 中国人民解放军第三军医大学第一附属医院 | Schlemm's canal duct using for operations |
| CN203227188U (en) * | 2013-04-07 | 2013-10-09 | 王宁利 | Schlemm elastic microcathether |
| CN203263905U (en) * | 2013-04-08 | 2013-11-06 | 天津市塑料研究所有限公司 | Double-cavity peritoneal dialysis built-in tube |
| CN206424205U (en) * | 2016-09-23 | 2017-08-22 | 天津优视眼科技术有限公司 | Lai Mushi pipe holders are applied with traction push function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111803273A (en) * | 2020-08-20 | 2020-10-23 | 宋一帆 | Schlemm's tube expansion stent and expansion method |
| CN114569325A (en) * | 2022-01-18 | 2022-06-03 | 苏州朗目医疗科技有限公司 | Injection device |
| CN114569325B (en) * | 2022-01-18 | 2024-06-07 | 苏州朗目医疗科技有限公司 | Pushing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170524 |