CN211433652U

CN211433652U - Device for implanting ophthalmic drainage tube

Info

Publication number: CN211433652U
Application number: CN201921652260.1U
Authority: CN
Inventors: 胡康; 王海军
Original assignee: Anhui Guotai Guorui Pharmaceutical Technology Co ltd
Current assignee: Anhui Guotai Guorui Pharmaceutical Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-08
Anticipated expiration: 2029-09-27

Abstract

The utility model relates to a device for implanting an ophthalmic drainage tube, which comprises a needle head component and a pushing component, wherein the needle head component 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 in the needle seat and at the contact position of the puncture needle; the push 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 formed in the sleeve, the sliding groove is communicated with a communicating pipe in the needle seat, a push needle is arranged at one end, penetrating through the sleeve, of the push rod, and the push needle is matched with the connecting hole in size. The utility model discloses a device that the setting is used for ophthalmology drainage tube to implant is convenient for get into the operation region with the drainage tube propelling movement, and the method is simple and efficient, is convenient for realize.

Description

Device for implanting ophthalmic drainage tube

Technical Field

The utility model belongs to the technical field of ophthalmic surgery device, concretely relates to a device for ophthalmology drainage tube is implanted.

Background

Glaucoma is the first irreversible blinding eye disease worldwide, and the main harm is pathological ocular hypertension causing optic papillary nerve damage and visual field defect, and blindness if effective treatment is not performed in time. Traditional complex trabeculectomy in combination with mitomycin remains the most common surgical modality for the treatment of glaucoma. At present, the success rate of most glaucoma filtration operations is high, but for refractory glaucoma, effective filtration channels are difficult to establish due to filter bulb related complications, and the success rate is low. Common bleb-related complications include bleb scarring, postoperative hypotony, hypotony maculopathy, bleb leakage delayed bleb inflammation, anterior and posterior adhesions of peripheral iris tissues, and the like, and related data indicate that complications such as choroidal leakage, wound leakage, superficial anterior chamber, hematuria, and the like may occur early after trabeculectomy, resulting in the surgery greatly damaging the ocular surface structure even if successful, and thus is not an ideal treatment modality. With the continuous development of medical level and scientific technology, glaucoma surgery gradually develops to a minimally invasive mode, and various novel minimally invasive surgeries such as the spring bamboo shoots after raining come, wherein the drainage device is a permanent soft miniature drainage tube made of gel materials, and the drainage device is used for reconstructing a subconjunctival fluid outflow channel by communicating the anterior chamber with a subconjunctival space, so that the drainage of the anterior chamber is promoted, and the effect of reducing intraocular pressure is achieved. The treatment method has the advantages of small injury, and high safety and effectiveness.

However, when an ophthalmic drainage operation is performed, the guiding operation of the drainage tube is not convenient, and the drainage tube is not stably pushed, which affects the accuracy of the operation and even harms the health of a patient. Therefore, the development of a device for ophthalmologic drainage tube implantation, which has a simple structure, is convenient to operate and moves smoothly, has important practical significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a device for implanting an ophthalmic drainage tube, which has simple structure and reasonable design.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

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 base and a puncture needle, a dispensing groove is formed in the top end of the needle base, the puncture needle is inserted from the top of the needle base, penetrates through the dispensing groove and is fixed to the top end of the needle base, and a connecting hole and a communicating pipe are sequentially formed in the contact position between the interior of the needle base and the puncture needle;

the push 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 formed in the sleeve, the sliding groove is communicated with a communicating pipe in the needle seat, a push needle is arranged at one end, penetrating through the sleeve, of the push rod, and the push needle is matched with the connecting hole in size.

By adopting the technical scheme, the drainage tube can be conveniently pushed into an operation area, the method is simple, convenient and quick, and the realization is convenient

As a further optimization scheme of the utility model, the sheathed tube end is provided with the direction cap, the surface of direction cap is provided with the slotted hole, the slotted hole position of direction cap still is provided with the guide block, the guide block with the guide way on push rod surface matches each other.

Through adopting above-mentioned technical scheme for the push rod can slide in the sliding tray direction of sleeve pipe, and the push rod slides more stably in the use.

As a further optimization scheme of the utility model, the surface of direction cap still is provided with the spacing groove, the surface of push rod be provided with the spacing groove corresponds the stopper of position.

By adopting the technical scheme, the push rod can stop moving at a fixed position in the pushing process, and the situation that the push needle arranged at the end of the push rod moves to the outside of the puncture needle to injure a patient in use is avoided.

As a further optimization scheme of the utility model, the sliding tray inner wall with still be provided with the sealing washer between 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 not steady enough to influence going on of drainage operation.

As the utility model discloses a further optimization scheme, when the push rod promoted the position to stopper and spacing groove mutual contact, the end of push pin with distance between the end of pjncture needle is not less than 1.5 mm.

By adopting the technical scheme, the condition that the push needle is pushed out of the end head of the puncture needle to cause injury to patients and the like in the using process is avoided.

As a further optimization scheme of the utility model, the diameter of the connecting hole is smaller than that 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 using process is ensured.

The beneficial effects of the utility model reside in that:

1) the utility model is provided with the device for implanting the ophthalmic drainage tube, 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) the utility model arranges the sleeve and the push rod which are mutually matched in the device, so that the push rod moves in the sliding groove of the sleeve, and plays a certain guiding role for the push rod;

3) the utility model, by arranging the sealing ring, the push rod can slide more stably in the sliding groove, and the precision of the operation is enhanced;

4) the utility model is provided with the limit groove and the limit block, so that the push needle at the end of the push rod is not exposed outside the puncture needle, and the damage of the push needle to the operation object is avoided;

5) the utility model discloses simple structure, stability is high, reasonable in design, the realization of being convenient for.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional structure 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 area P in FIG. 2;

fig. 5 is an overall structure view of the present invention in use.

In the figure: 1. a needle seat; 2. a sleeve; 3. a push rod; 4. a drainage tube; 11. puncturing needle; 12. connecting holes; 13. a communicating pipe; 14. dispensing a glue groove; 21. a sliding groove; 22. a guide cap; 31. pushing the needle; 32. a seal ring; 33. a guide groove; 34. a limiting block; 221. a guide block; 222. a limiting groove.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

In the description of the present invention, it is to 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 orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.

Example 1

As shown in fig. 1-4, a device for implanting an ophthalmic drainage tube comprises a needle assembly and a pushing assembly, wherein the needle assembly comprises a needle base 1 and a puncture needle 11, the needle base 1 is conical, the top end of the needle base is provided with a dispensing groove 14, the puncture needle 11 is inserted from the top of the needle base 1, penetrates through the dispensing groove 14 and is fixed at the top end of the needle base 1, and the puncture needle 11 is fixed with the needle base 1 by injecting ultraviolet glue into the dispensing groove 14; the contact position of the interior of the needle base 1 and the puncture needle 11 is sequentially provided with a connecting hole 12 and a communicating pipe 13, the puncture needle 11 is communicated with a pushing assembly connected with the tail end of the needle base 1, the diameter of the connecting hole 12 is smaller than that of the puncture needle 11, so that the puncture needle 11 is limited, the puncture needle 11 can be kept at a fixed position in the needle base 1, the puncture needle 11 is prevented from moving into the connecting hole 12, and the stability of the puncture needle 11 in the using process is ensured.

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 to enable the push rod 3 to slide in the sliding groove 21; a push needle 31 is arranged at one end of the push rod 3 penetrating the sleeve 2, 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 a guide groove 33 is arranged on the surface of 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 for the push rod 3 to pass through the guide cap 22, the slotted hole of the guide cap 22 is also provided with a guide block 221, and the guide block 221 is matched with the guide groove 33 on the surface of the push rod 3, so that the push rod 3 can slide in the direction of the sliding groove 21 of the sleeve 2, and the push rod 3 can slide more stably in the using process; the surface of the guide cap 22 is further provided with a limiting groove 222, the surface of the push rod 3 is provided with a limiting block 34 at a position corresponding to the limiting groove 222, and the push rod 3 can stop moving at a fixed position in the pushing process through the arrangement of the limiting block 34 and the limiting 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 causing injury to a patient in use.

It should be noted that a sealing ring 32 is further arranged between the inner wall of the sliding groove 21 and the push rod 3, and by arranging the sealing ring 32, the sliding resistance of the push rod 3 in the sliding groove 21 is reduced, and the push rod 3 is prevented from shaking in the sliding groove 21, so that the movement of the push rod 3 is not stable enough, thereby affecting the performance of the ophthalmic drainage operation; when the push rod 3 is pushed to the position where the limit block 34 and the limit groove 222 are contacted 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 situation that the push needle 31 is pushed out of the end of the puncture needle 11 in the using process to injure patients and the like is avoided.

As shown in fig. 5, when in use, the drainage tube 4 used in operation is inserted into the puncture needle 11, so that the drainage tube is contacted with the push needle 31 in the device, one end of the drainage tube 4 exposed outside the device is connected with the scleral tissue of the operation part of a patient, the push rod 31 is slightly pushed, the push needle 31 slowly pushes the drainage tube 4 to slowly enter the scleral tissue part of the patient, until the limit block 34 of the device is contacted 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 the puncture needle 11 is withdrawn, so that the pushing operation of the drainage tube 4 can be completed.

The utility model is provided with the device for implanting the ophthalmic drainage tube, so that the drainage tube 4 can be conveniently pushed into the operation setting area, and the method is simple, convenient and quick and is convenient to realize; the utility model arranges the sleeve 2 and the push rod 3 which are mutually matched in the device, so that the push rod 3 moves in the sliding groove 21 of the sleeve 2, and plays a certain guiding role for the push rod 3; the utility model has the advantages that the sealing ring 32 is arranged, so that the push rod 3 can slide more stably in the sliding groove 21, and the precision of the operation is enhanced; the utility model discloses a set up spacing groove 222 and stopper 34, make the push pin 31 of push rod 3 end be unlikely to expose in the outside of pjncture needle 11, avoid push pin 31 to cause the injury to the operation object.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. An apparatus for ophthalmic drainage tube implantation, characterized by: the needle comprises a needle head assembly and a pushing assembly, wherein the needle head assembly comprises a needle seat (1) and a puncture needle (11), a glue 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), penetrates through the glue dispensing groove (14) and is fixed to the top end of the needle seat (1), and a connecting hole (12) and a communicating pipe (13) are sequentially arranged at the contact position of the inner part of the needle seat (1) and the puncture needle (11);

the push 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.

2. A device for ophthalmic drain implantation according to claim 1, wherein: 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 further 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).

3. A device for ophthalmic drain implantation according to claim 2, wherein: the surface of the guide cap (22) is also provided with a limiting groove (222), and the surface of the push rod (3) is provided with a limiting block (34) at a position corresponding to the limiting groove (222).

4. A device for ophthalmic drain implantation according to claim 1, wherein: and a sealing ring (32) is also arranged between the inner wall of the sliding groove (21) and the push rod (3).

5. A device for ophthalmic drain implantation according to claim 1, wherein: when the push rod (3) is pushed to the position where the limit block (34) is contacted with the limit groove (222), the distance between the end head of the push needle (31) and the end head of the puncture needle (11) is not less than 1.5 mm.

6. A device for ophthalmic drain implantation according to claim 1, wherein: the diameter of the connecting hole (12) is smaller than that of the puncture needle (11).