CN110507477B - Device for implanting ophthalmic drainage tube - Google Patents
Device for implanting ophthalmic drainage tube Download PDFInfo
- Publication number
- CN110507477B CN110507477B CN201910924263.4A CN201910924263A CN110507477B CN 110507477 B CN110507477 B CN 110507477B CN 201910924263 A CN201910924263 A CN 201910924263A CN 110507477 B CN110507477 B CN 110507477B
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- Prior art keywords
- needle
- push rod
- sleeve
- push
- groove
- Prior art date
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000002513 implantation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 230000006378 damage Effects 0.000 description 6
- 208000010412 Glaucoma Diseases 0.000 description 5
- 208000002352 blister Diseases 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 210000002159 anterior chamber Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000001742 aqueous humor Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 201000004569 Blindness Diseases 0.000 description 1
- 208000024304 Choroidal Effusions Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 229930192392 Mitomycin Natural products 0.000 description 1
- NWIBSHFKIJFRCO-WUDYKRTCSA-N Mytomycin Chemical compound C1N2C(C(C(C)=C(N)C3=O)=O)=C3[C@@H](COC(N)=O)[C@@]2(OC)[C@@H]2[C@H]1N2 NWIBSHFKIJFRCO-WUDYKRTCSA-N 0.000 description 1
- 208000028389 Nerve injury Diseases 0.000 description 1
- 208000007950 Ocular Hypotension Diseases 0.000 description 1
- 206010030043 Ocular hypertension Diseases 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 206010047555 Visual field defect Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000005534 hematocrit Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004410 intraocular pressure Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 208000002780 macular degeneration Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 229960004857 mitomycin Drugs 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 210000001328 optic nerve Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 238000011282 treatment Methods 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)
- External Artificial Organs (AREA)
- Prostheses (AREA)
Abstract
The invention relates to a device for implanting an ophthalmic drainage tube, which comprises a needle head assembly and a pushing assembly, wherein the needle head assembly comprises a needle seat and a puncture needle, the top end of the needle seat is provided with a dispensing slot, the puncture needle is inserted from the top of the needle seat and passes through the dispensing slot to be fixed at the top end of the needle seat, and a connecting hole and a communicating pipe are sequentially arranged at the contact position between the inside of the needle seat and the puncture needle; the pushing assembly comprises a sleeve movably connected with the tail end of the needle seat and a push rod penetrating through the sleeve, a sliding groove is arranged in the sleeve, the sliding groove is communicated with a communicating pipe in the needle seat, a push needle is arranged at one end of the push rod penetrating through the sleeve, and the push needle is matched with the connecting hole in size. The device for implanting the ophthalmic drainage tube is convenient to push the drainage tube into an operation area, and the method is simple, convenient and quick and is convenient to realize.
Description
Technical Field
The invention belongs to the technical field of ophthalmic surgical devices, and particularly relates to a device for implanting an ophthalmic drainage tube.
Background
Glaucoma is the first irreversible blinding eye disease worldwide, the major hazard of which is pathological ocular hypertension leading to optic nerve damage and visual field defects, and if not treated effectively in time, blindness. Traditional compound trabeculectomy in combination with mitomycin remains the most common surgical modality for treating glaucoma. At present, most glaucoma filterability operations have higher success rate, but for refractory glaucoma, effective filtration channels are difficult to establish due to complications related to bleb, and the success rate is lower. Common bleb-related complications include bleb scarring, post-operative ocular hypotension, ocular macular degeneration, bleb leakage delayed bleb inflammation, anterior-posterior adhesion of peripheral iris tissue, and the like, and related data indicate that complications such as choroidal effusion, wound leakage, superficial anterior chamber, anterior chamber hematocrit, and the like may occur early after trabeculectomy, resulting in the surgery, if successful, greatly destroying ocular surface structures and thus are not ideal treatments. Along with the continuous development of medical level and scientific technology, glaucoma surgery gradually develops to a minimally invasive mode, so that various novel minimally invasive surgeries such as spring bamboo shoots after rain are performed, wherein a drainage device is a permanent soft miniature drainage tube made of gel materials, and a subconjunctival aqueous humor outflow channel is rebuilt through communicating an anterior chamber with a subconjunctival space, so that the drainage of the anterior chamber aqueous humor is promoted, and the effect of reducing intraocular pressure is achieved. The method has the advantages of less damage, high safety and high effectiveness.
However, when an ophthalmic drainage operation is performed, the operation of introducing the drainage tube is not convenient, the pushing of the drainage tube is not stable, the accuracy of the operation is affected, and even the health of a patient can be endangered. Therefore, the development of the device for implanting the ophthalmic drainage tube, which has the advantages of simple structure, convenient operation and stable movement, has important practical significance.
Disclosure of Invention
The invention aims to solve the problems and provide a device for implanting an ophthalmic drainage tube, which has a simple structure and reasonable design.
The invention realizes the above purpose through the following technical scheme:
The device for implanting the ophthalmic drainage tube comprises a needle head assembly and a pushing assembly, wherein the needle head assembly comprises a needle seat and a puncture needle, the top end of the needle seat is provided with a dispensing groove, the puncture needle is inserted from the top of the needle seat and passes through the dispensing groove to be fixed at the top end of the needle seat, and a connecting hole and a communicating pipe are sequentially arranged at the contact position between the inside of the needle seat and the puncture needle;
the pushing assembly comprises a sleeve movably connected with the tail end of the needle seat and a push rod penetrating through the sleeve, a sliding groove is arranged in the sleeve, the sliding groove is communicated with a communicating pipe in the needle seat, a push needle is arranged at one end of the push rod penetrating through the sleeve, and the push needle is matched with the connecting hole in size.
By adopting the technical scheme, the drainage tube can be pushed into the operation area conveniently, the method is simple and quick, and the realization is convenient
As a further optimization scheme of the invention, the tail end of the sleeve is provided with a guide cap, the surface of the guide cap is provided with a slotted hole, the slotted hole of the guide cap is also provided with a guide block, and the guide block is matched with the guide groove on the surface of the push rod.
Through adopting above-mentioned technical scheme for the push rod can slide in sheathed tube sliding tray direction, and the push rod slides more stably in the use.
As a further optimization scheme of the invention, the surface of the guide cap is also provided with a limiting groove, and the surface of the push rod is provided with a limiting block at a position corresponding to the limiting groove.
By adopting the technical scheme, the push rod can stop moving at a fixed position in the pushing process, so that the push needle arranged at the end of the push rod is prevented from moving to the outside of the puncture needle, and the damage to a patient is avoided.
As a further optimization scheme of the invention, a sealing ring is also arranged between the inner wall of the sliding groove and the push rod.
Through adopting above-mentioned technical scheme, reduce the sliding resistance of push rod in the sliding tray, and avoid the push rod to rock in the sliding tray, and then make the motion of push rod steady inadequately to influence the going on of drainage operation.
As a further optimization scheme of the invention, when the push rod is pushed to the position where the limiting block and the limiting groove are in contact with each other, the distance between the end of the push needle and the end of the puncture needle is not less than 1.5mm.
By adopting the technical scheme, the push needle is prevented from being pushed out of the end head of the puncture needle in the using process, and the damage to a patient and the like are avoided.
As a further optimization of the invention, the diameter of the connecting hole is smaller than the diameter of the puncture needle.
By adopting the technical scheme, the puncture needle is limited, so that the puncture needle can be kept at a fixed position in the needle seat, the puncture needle is prevented from moving into the connecting hole, and the stability of the puncture needle in the use process is ensured.
The invention has the beneficial effects that:
1) The device for implanting the ophthalmic drainage tube is arranged, so that the drainage tube can be conveniently pushed into an operation area, and the method is simple, convenient and quick and is convenient to realize;
2) According to the invention, the sleeve and the push rod which are matched with each other are arranged in the device, so that the push rod moves in the sliding groove of the sleeve, and a certain guiding effect is achieved on the push rod;
3) According to the invention, the sealing ring is arranged, so that the push rod slides in the sliding groove more stably, and the accuracy of operation is enhanced;
4) According to the invention, the limiting groove and the limiting block are arranged, so that the push needle at the end of the push rod is not exposed to the outside of the puncture needle, and the push is prevented from damaging an operation object;
5) The invention has simple structure, high stability, reasonable design and convenient realization.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is an enlarged view of the portion P of FIG. 2;
Fig. 5 is an overall construction diagram of the present invention in use.
In the figure: 1. a needle stand; 2. a sleeve; 3. a push rod; 4. a drainage tube; 11. a puncture needle; 12. a connection hole; 13. a communicating pipe; 14. a dispensing groove; 21. a sliding groove; 22. a guide cap; 31. pushing needles; 32. a seal ring; 33. a guide groove; 34. a limiting block; 221. a guide block; 222. and a limit groove.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention; in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a number" or "a plurality" is two or more.
Example 1
As shown in fig. 1-4, a device for implanting an ophthalmic drainage tube comprises a needle head assembly and a pushing assembly, wherein the needle head assembly comprises a needle seat 1 and a puncture needle 11, the needle seat 1 is conical, the top end of the needle seat is provided with a dispensing groove 14, the puncture needle 11 is inserted from the top of the needle seat 1, is fixed at the top end of the needle seat 1 through the dispensing groove 14, and the puncture needle 11 is fixed with the needle seat 1 by injecting ultraviolet glue into the dispensing groove 14; the inside and pjncture needle 11 contact position of needle file 1 sets gradually connecting hole 12 and communicating pipe 13, is linked together pjncture needle 11 and needle file 1 end-to-end connection's pushing component, the diameter of connecting hole 12 is less than pjncture needle 11's diameter to carry out spacingly to pjncture needle 11, make pjncture needle 11 can keep the fixed position in needle file 1, prevent pjncture needle 11 remove in connecting hole 12, guarantee pjncture needle 11 stability in the use.
The pushing assembly comprises a sleeve 2 movably connected with the tail end of the needle seat 1 and a push rod 3 penetrating through the sleeve 2, a sliding groove 21 is arranged in the sleeve 2, the sliding groove 21 is communicated with a communicating pipe 13 in the needle seat 1, the diameter of the sliding groove 21 is larger than that of the communicating pipe 13, and the sliding groove 21 is used for placing the push rod 3 so that the push rod 3 slides in the sliding groove 21; one end of the push rod 3 penetrating through the sleeve 2 is provided with a push needle 31, the push needle 31 is matched with the connecting hole 12, so that the push needle 31 can be inserted into the connecting hole 12 and enter the puncture needle 11, and the surface of the push rod 3 is provided with a guide groove 33; the tail end of the sleeve 2 is provided with a guide cap 22, the surface of the guide cap 22 is provided with a slotted hole, so that the push rod 3 can conveniently pass through the guide cap 22, the slotted hole of the guide cap 22 is also provided with a guide block 221, the guide block 221 is matched with a guide groove 33 on the surface of the push rod 3, so that the push rod 3 can slide in the direction of a sliding groove 21 of the sleeve 2, and the push rod 3 slides more stably in the use process; the surface of the guide cap 22 is also provided with a limit groove 222, the surface of the push rod 3 is provided with a limit block 34 corresponding to the limit groove 222, and the push rod 3 can stop moving at a fixed position in the pushing process through the arrangement of the limit block 34 and the limit groove 222, so that the push needle 31 arranged at the end of the push rod 3 is prevented from moving to the outside of the puncture needle 11, and damage is caused to a patient in use.
It should be noted that, a sealing ring 32 is further disposed between the inner wall of the sliding groove 21 and the push rod 3, and by disposing the sealing ring 32, sliding resistance of the push rod 3 in the sliding groove 21 is reduced, and shaking of the push rod 3 in the sliding groove 21 is avoided, so that movement of the push rod 3 is not stable enough, and thus, performance of ophthalmic drainage surgery is affected; when the push rod 3 is pushed to the position where the limiting block 34 and the limiting groove 222 are in contact with each other, the distance between the end of the push needle 31 and the end of the puncture needle 11 is not less than 1.5mm, so that the push needle 31 is prevented from being pushed out of the end of the puncture needle 11 in the use process, and injuries and the like are avoided to patients.
As shown in figure 5, when in use, the drainage tube 4 used in operation is inserted into the puncture needle 11 to make the puncture needle contact with the push needle 31 in the device, one end of the drainage tube 4 exposed outside the device is connected with scleral tissue of a patient operation position, the push rod 31 is slightly pushed, the push needle 31 slowly pushes the drainage tube 4 into the scleral tissue position of the patient until the limit block 34 of the device contacts with the limit groove 222, the push needle 31 reaches the position of about 1.5mm at the end of the puncture needle 11, the drainage tube 4 immediately falls off from the puncture needle 11, and simultaneously the puncture needle 11 is retracted, so that the pushing operation of the drainage tube 4 can be completed.
The device for implanting the ophthalmic drainage tube is arranged, so that the drainage tube 4 is conveniently pushed into an operation setting area, and the method is simple, convenient and quick and is convenient to realize; according to the invention, the sleeve 2 and the push rod 3 which are matched with each other are arranged in the device, so that the push rod 3 moves in the sliding groove 21 of the sleeve 2, and a certain guiding effect is achieved on the push rod 3; according to the invention, the sealing ring 32 is arranged, so that the push rod 3 slides in the sliding groove 21 more stably, and the accuracy of operation is enhanced; the invention sets the limit groove 222 and the limit block 34, so that the push needle 31 at the end of the push rod 3 is not exposed outside the puncture needle 11, and the damage of the push needle 31 to an operation object is avoided.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (1)
1. A device for ophthalmic drainage tube implantation, characterized by: the needle assembly comprises a needle seat (1) and a puncture needle (11), wherein a dispensing groove (14) is formed in the top end of the needle seat (1), the puncture needle (11) is inserted from the top of the needle seat (1), the puncture needle is fixed at the top end of the needle seat (1) through the dispensing groove (14), and a connecting hole (12) and a communicating pipe (13) are sequentially formed in the contact position between the inside of the needle seat (1) and the puncture needle (11);
The pushing assembly comprises a sleeve (2) movably connected with the tail end of the needle seat (1) and a push rod (3) penetrating through the sleeve (2), a sliding groove (21) is formed in the sleeve (2), the sliding groove (21) is communicated with a communicating pipe (13) in the needle seat (1), a push needle (31) is arranged at one end, penetrating through the sleeve (2), of the push rod (3), and the push needle (31) is matched with the connecting hole (12) in size;
a sealing ring (32) is arranged between the inner wall of the sliding groove (21) and the push rod (3);
The tail end of the sleeve (2) is provided with a guide cap (22), the surface of the guide cap (22) is provided with a slotted hole, the slotted hole of the guide cap (22) is also provided with a guide block (221), and the guide block (221) is matched with a guide groove (33) on the surface of the push rod (3);
the surface of the guide cap (22) is also provided with a limit groove (222), and the surface of the push rod (3) is provided with a limit block (34) at a position corresponding to the limit groove (222);
When the push rod (3) is pushed to a position where the limiting block (34) and the limiting groove (222) are in contact with each other, the distance between the end of the push needle (31) and the end of the puncture needle (11) is not less than 1.5mm;
the diameter of the connecting hole (12) is smaller than that of the puncture needle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910924263.4A CN110507477B (en) | 2019-09-27 | 2019-09-27 | Device for implanting ophthalmic drainage tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910924263.4A CN110507477B (en) | 2019-09-27 | 2019-09-27 | Device for implanting ophthalmic drainage tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110507477A CN110507477A (en) | 2019-11-29 |
| CN110507477B true CN110507477B (en) | 2024-05-17 |
Family
ID=68633868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910924263.4A Active CN110507477B (en) | 2019-09-27 | 2019-09-27 | Device for implanting ophthalmic drainage tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110507477B (en) |
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| WO2018042033A1 (en) * | 2016-09-02 | 2018-03-08 | Implandata Ophthalmic Products Gmbh | Injector for ocular implant |
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| Publication number | Publication date |
|---|---|
| CN110507477A (en) | 2019-11-29 |
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