CN215739858U - Stable flow guide bracket for glaucoma operation - Google Patents
Stable flow guide bracket for glaucoma operation Download PDFInfo
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- CN215739858U CN215739858U CN202121975537.1U CN202121975537U CN215739858U CN 215739858 U CN215739858 U CN 215739858U CN 202121975537 U CN202121975537 U CN 202121975537U CN 215739858 U CN215739858 U CN 215739858U
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Abstract
The utility model discloses a stable flow guide support for glaucoma surgery, which comprises a head part, a waist part and a tail part which are sequentially connected from one end to the other end, wherein the head part is conical, the outer diameter of the head part is gradually increased from top to bottom, the waist part and the tail part are cylindrical, a central through hole penetrating through the head part, the waist part and the tail part is arranged in the center of the flow guide support, and the head part, the waist part, the tail part and the central through hole have the same axis; the outer surface of the waist part is provided with a plurality of straight grooves which are distributed at equal angles around the axis of the diversion bracket, and each straight groove is parallel to the axis of the diversion bracket; the flow guide bracket can be directly implanted into the trabecular meshwork in a minimally invasive mode to guide aqueous humor to schlemm tubes from the anterior chamber, so that the problem of overhigh intraocular pressure is solved.
Description
Technical Field
The utility model belongs to the technical field related to ophthalmic medical instruments, and particularly relates to a stable flow guide bracket for glaucoma surgery.
Background
Aqueous humor, a clear, transparent fluid that fills the anterior and posterior chambers of the eye, is produced by the ciliary processes and produces approximately 2-3 μ l per minute, and because it contains high concentrations of glucose and ascorbic acid, it supplies the cornea and lens with the necessary nutrients and carries away metabolites from these tissues, a function that is important in maintaining the normal physiological functions of the cornea and lens and in maintaining their transparency. The Schlemm tube is an aqueous humor outflow tube surrounding the anterior chamber for a circle and is formed by mutually inosculating a plurality of small cavities, only one layer of endothelial cells is separated from the trabecular meshwork on the inner wall, the aqueous humor is smoothly discharged to maintain normal intraocular pressure, and if the trabecular tissue is abnormal, the aqueous humor outflow is blocked, so that the intraocular pressure is increased, and glaucoma occurs. Generally, the traditional operation mode for reducing intraocular pressure is trabeculectomy, which is based on the principle that a hole is made in sclera to drain aqueous humor to the anterior chamber, but because the operation wound is large, the risk after trabeculectomy is high, and complications such as leakage, infection, eye irritation and the like are easy to occur.
Disclosure of Invention
In order to solve the problems and the technical requirements and improve the operation mode of lowering intraocular pressure of glaucoma, the utility model provides the stable flow guide bracket for glaucoma operation, the flow guide bracket can be embedded into a trabecular meshwork in a minimally invasive mode to increase the guiding smoothness of aqueous humor, and the safety and the postoperative effect of the stable flow guide bracket are far greater than those of the traditional operation mode.
The technical scheme of the utility model is as follows: the stable flow guide support for glaucoma surgery comprises a head part, a waist part and a tail part which are sequentially connected from one end to the other end, wherein the head part is conical, the outer diameter of the head part is gradually increased from top to bottom, the waist part and the tail part are cylindrical, a central through hole penetrating through the head part, the waist part and the tail part is formed in the center of the flow guide support, and the head part, the waist part, the tail part and the central through hole are provided with the same axis; the outer surface of the waist is provided with a plurality of straight grooves which are distributed at equal angles around the axis of the diversion bracket, and each straight groove is parallel to the axis of the diversion bracket.
The flow guide support is implanted into the trabecular meshwork, the head of the flow guide support is implanted into the schlemm tube, the waist is embedded into the trabecular meshwork, the tail is kept in the front, the straight groove is formed in the outer surface of the waist, friction between the flow guide support and the trabecular meshwork is increased, the flow guide support can be prevented from rotating around the axis, the implantation effect of the flow guide support is more stable, and foreign body sensation and discomfort sensation of the eyes of a patient are effectively reduced.
Furthermore, the straight groove penetrates through the head of the flow guide support upwards, an auxiliary inflow hole is formed in the outer conical surface of the head, the straight groove penetrates through the tail of the flow guide support downwards, an auxiliary outflow hole is formed in the lower surface of the tail, and a semi-closed channel from the auxiliary inflow hole to the auxiliary outflow hole is an auxiliary flow channel. The auxiliary flow channel can enhance the overall flux of the flow guide support and assist the central through hole in draining water, a semi-closed state is formed between the auxiliary flow channel and the straight groove of the waist and the trabecular net, and seepage generated by the trabecular net can also enter the auxiliary flow channel from the waist and is led out to the schlemm pipe.
Furthermore, the diameter range of the auxiliary flow channel is 0.03mm-0.05 mm.
Further, straight shape recess upper end extends to the lower surface of head, and the lower extreme extends to the upper surface of afterbody, and the lower surface of head and the upper surface of afterbody all are equipped with round annular groove, and annular groove and the coaxial setting of water conservancy diversion support, straight shape recess and annular groove homoenergetic embedding medicine. The medicines are embedded in the straight groove and the annular groove, so that the medicines can be slowly released after the guide support is implanted, and the healing of the wound is accelerated.
Furthermore, the sections of the straight groove and the annular groove are both arc-shaped, and the depth ranges of the straight groove and the annular groove are both 5-30 μm.
Furthermore, be equipped with a plurality of side openings on the head outer peripheral face, a plurality of side openings are distributed around the equal angle of axle center, and every side opening all is perpendicular to axle center and communicates with central through-hole.
Further, the total height range of the flow guide support is 0.34mm-0.40 mm.
Further, the maximum outer diameter range of the guide support is 0.20mm-0.30 mm.
Furthermore, the diameter range of the central through hole is 0.05mm-0.10 mm.
Furthermore, all the inner and outer surfaces of the head, the waist and the tail of the diversion bracket are coated with anticoagulant functional coatings.
Compared with the prior art, the utility model has the beneficial effects that: the flow guide bracket is used for minimally invasive surgical treatment of glaucoma, the head part of the flow guide bracket is implanted into a schlemm tube, the waist part of the flow guide bracket is embedded in a pathological trabecular tissue, the tail part of the flow guide bracket is remained in the anterior chamber, the pathological trabecular tissue can be improved, the straight groove of the bracket waist part generates resistance, the flow guide bracket after being implanted can be prevented from rotating due to being too smooth, the stable state is kept, and the discomfort of a patient can be effectively reduced; it has seted up a plurality of auxiliary passage, enlarges original drainage channel, further increases flux, alleviates intraocular pressure, sets up the annular groove that can imbed the medicine on head lower surface and afterbody upper surface, and the straight shape recess of cooperation is released the medicine slowly together, and the medicine direct action can not produce the seepage in wound and the periphery of trabecular tissue, can accurate give medicine to poor free of charge, accelerates wound healing.
Drawings
FIG. 1 is a schematic view of a first embodiment of a fluid guide bracket according to the present invention;
FIG. 2 is a perspective view of a second embodiment of the fluid-guiding support of the present invention;
FIG. 3 is a bottom perspective view of a second embodiment of the deflector bracket of the present invention;
labeled as: the flow guide support comprises a flow guide support 1, a head 2, side holes 21, a waist 3, a straight groove 31, an auxiliary flow passage 32, an auxiliary inflow hole 33, an auxiliary outflow hole 34, a tail 4, a central through hole 5, an annular groove 6 and a straight groove 7.
Detailed Description
The utility model is further described below with reference to the figures and examples.
The first embodiment is as follows:
as shown in fig. 1, the flow guide support 1 comprises a head part 2, a waist part 3 and a tail part 4 which are sequentially connected from one end to the other end, wherein the head part 2 is conical, the outer diameter of the head part 2 gradually increases from top to bottom, the waist part 3 and the tail part 4 are both cylindrical, a central through hole 5 penetrating through the head part 2, the waist part 3 and the tail part 4 is arranged in the center of the flow guide support 1, and the head part 2, the waist part 3, the tail part 4 and the central through hole 5 have the same axis; all the inner and outer surfaces of the head part 2, the waist part 3 and the tail part 4 of the diversion bracket 1 are coated with anticoagulant function coatings.
The total height range of the guide support 1 is 0.34mm-0.40mm, the maximum outer diameter range of the guide support 1 is 0.20mm-0.30mm, and the diameter range of the central through hole 5 is 0.05mm-0.10 mm.
The outer surface of the waist part is provided with a plurality of straight grooves 31, the straight grooves 31 are distributed around the axis of the guide support 1 at equal angles, and each straight groove 31 is parallel to the axis of the guide support 1; the straight groove 31 penetrates through the head part 2 of the guide support 1 upwards, an auxiliary inflow hole 33 is formed in the outer conical surface of the head part 2, the straight groove 31 penetrates through the tail part 4 of the guide support 1 downwards, an auxiliary outflow hole 34 is formed in the lower surface of the tail part 4, a semi-closed channel from the auxiliary inflow hole 33 to the auxiliary outflow hole 34 is an auxiliary flow channel 32, and the diameter range of the auxiliary flow channel 32 is 0.03mm-0.05 mm.
When the flow guide support is implanted in the embodiment, the head 2 and the tail 4 of the flow guide support 1 are respectively clamped in and in front of a schlemm tube, the waist 3 penetrates through a trabecular meshwork to expand the flux of the flow guide support, and the straight groove 31 is arranged on the outer surface of the waist 3 to ensure that the position between the waist 3 and the trabecular meshwork is fixed, so that the flow guide support can be prevented from rotating, the implantation effect of the flow guide support 1 is more stable, and the foreign body sensation and the uncomfortable sensation of the eyes of a patient are effectively reduced; the auxiliary flow passage 32 can enhance the overall flux of the diversion bracket 1 and assist the central through hole 5 in draining water, and is in a semi-closed state with the straight groove 31 of the waist 3 and the trabecular meshwork, and the exudate generated by the trabecular meshwork can also enter the auxiliary flow passage 32 from the waist 3 and is led out to the schlemm tube.
Example two:
the shape and the contour of the head part 2, the waist part 3 and the tail part 4 of the diversion bracket of the second embodiment are the same as those of the first embodiment, except that the diversion bracket 1 is not provided with an auxiliary channel 32 penetrating through the head part 2 and the tail part 4, the upper end of the straight groove 7 extends to the lower surface of the head part 2, and the lower end extends to the upper surface of the tail part 4, namely the tail part is terminated; in addition, the lower surface of the head part 2 and the upper surface of the tail part 4 are both provided with a circle of annular groove 6, the annular groove 6 and the flow guide support 1 are coaxially arranged, the sections of the straight groove 7 and the annular groove 6 are both arc-shaped, the depth ranges of the straight groove 7 and the annular groove 6 are both 5-30 micrometers, and the straight groove 7 and the annular groove 6 can be embedded with medicines.
In addition, be equipped with a plurality of side openings 21 on the head 2 outer peripheral face, a plurality of side openings 21 are distributed around the equiangular distribution of axle center, and every side opening 21 all is perpendicular to the axle center and communicates with central through-hole 5, and side opening 21 is as the branch road of central through-hole 5, can be with aqueous humor from a plurality of directions drainage to central through-hole 5, the discharge of acceleration aqueous humor.
The diversion bracket 1 is suitable for the operation condition that the affected part needs to be applied with medicine, after the diversion bracket 1 is implanted into the trabecular tissue, the medicine in the straight groove 7 of the waist part 3 and the two annular grooves 6 contacts schlemm tubes and the wound openings of the trabecular meshwork, the medicine cannot leak and fall, and the medicine is slowly released in a certain time, so that the wound healing can be helped.
The above description is only for the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A stable form water conservancy diversion support for glaucoma operation which characterized in that: the flow guide support comprises a head part, a waist part and a tail part which are sequentially connected from one end to the other end, wherein the head part is conical, the outer diameter of the head part is gradually increased from top to bottom, the waist part and the tail part are cylindrical, a central through hole penetrating through the head part, the waist part and the tail part is arranged in the center of the flow guide support, and the head part, the waist part, the tail part and the central through hole have the same axis; the outer surface of the waist is provided with a plurality of straight grooves which are distributed at equal angles around the axis of the diversion bracket, and each straight groove is parallel to the axis of the diversion bracket.
2. A stabilized guide stent for glaucoma surgery according to claim 1, wherein: the straight groove penetrates through the head of the guide support upwards, an auxiliary inflow hole is formed in the outer conical surface of the head, the straight groove penetrates through the tail of the guide support downwards, an auxiliary outflow hole is formed in the lower surface of the tail, and a semi-closed channel from the auxiliary inflow hole to the auxiliary outflow hole is an auxiliary flow channel.
3. A stabilized guide stent for glaucoma surgery according to claim 2, wherein: the diameter range of the auxiliary flow channel is 0.03mm-0.05 mm.
4. A stabilized guide stent for glaucoma surgery according to claim 1, wherein: the upper end of the straight groove extends to the lower surface of the head, the lower end of the straight groove extends to the upper surface of the tail, the lower surface of the head and the upper surface of the tail are both provided with a circle of annular groove, the annular groove and the flow guide support are coaxially arranged, and the straight groove and the annular groove can be embedded with medicines.
5. A stabilized flow guide stent for glaucoma surgery according to claim 4, wherein: the sections of the straight groove and the annular groove are both arc-shaped, and the depth ranges of the straight groove and the annular groove are both 5-30 mu m.
6. A stabilized flow guide stent for glaucoma surgery according to claim 4, wherein: the head is provided with a plurality of side holes on the outer peripheral surface, the side holes are distributed at equal angles around the axis, and each side hole is perpendicular to the axis and is communicated with the central through hole.
7. A stabilized guide stent for glaucoma surgery according to claim 1, wherein: the total height range of the diversion bracket is 0.34mm-0.40 mm.
8. A stabilized guide stent for glaucoma surgery according to claim 1, wherein: the maximum outer diameter range of the guide support is 0.20mm-0.30 mm.
9. A stabilized guide stent for glaucoma surgery according to claim 1, wherein: the diameter range of the central through hole is 0.05mm-0.10 mm.
10. A stabilized guide stent for glaucoma surgery according to claim 1, wherein: all the inner and outer surfaces of the head, the waist and the tail of the diversion bracket are coated with anticoagulant functional coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121975537.1U CN215739858U (en) | 2021-08-20 | 2021-08-20 | Stable flow guide bracket for glaucoma operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121975537.1U CN215739858U (en) | 2021-08-20 | 2021-08-20 | Stable flow guide bracket for glaucoma operation |
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| Publication Number | Publication Date |
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| CN215739858U true CN215739858U (en) | 2022-02-08 |
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| CN202121975537.1U Active CN215739858U (en) | 2021-08-20 | 2021-08-20 | Stable flow guide bracket for glaucoma operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115177433A (en) * | 2022-09-13 | 2022-10-14 | 山东百多安医疗器械股份有限公司 | Degradable zinc alloy glaucoma drainage stent |
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2021
- 2021-08-20 CN CN202121975537.1U patent/CN215739858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115177433A (en) * | 2022-09-13 | 2022-10-14 | 山东百多安医疗器械股份有限公司 | Degradable zinc alloy glaucoma drainage stent |
| CN115177433B (en) * | 2022-09-13 | 2022-11-18 | 山东百多安医疗器械股份有限公司 | Degradable zinc alloy glaucoma drainage stent |
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