CN219184491U

CN219184491U - Trabecula excision auxiliary assembly

Info

Publication number: CN219184491U
Application number: CN202320149464.3U
Authority: CN
Inventors: 彭礼晴
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-06-16
Anticipated expiration: 2033-02-08

Abstract

The utility model relates to the field of ophthalmic medical equipment, and particularly discloses a trabecular resection auxiliary device which comprises a sleeve and a cutting body, wherein the sleeve is sleeved outside the cutting body, and the front end of the sleeve is in a curved needle shape; the cutting body is composed of a solid cylinder part and a head part with an arc-shaped cross section, and the head part of the cutting body faces forward when the cutting body penetrates into the sleeve. According to the utility model, the cornea incision is supported by the sleeve, the extrusion force generated by the cornea incision on the cutting body is relieved, the cutting body conveniently passes through the annular Schlemm tube, the curved needle-shaped part at the front end of the sleeve can cut a small incision on the trabecular meshwork, the cutting body conveniently enters the Schlemm tube, and an extra instrument is not needed to cut the trabecular meshwork, so that the damage to an intraocular structure due to repeated operation is avoided.

Description

Trabecula excision auxiliary assembly

Technical Field

The utility model relates to the field of ophthalmic medical equipment, in particular to auxiliary trabecular resection equipment.

Background

Glaucoma is a disease of pathological elevated ocular pressure with or without optic nerve damage, which severely threatens vision and quality of life. Trabeculectomy is a relatively common procedure in glaucoma surgery, in which a surgical resection tool is used to resect a portion of the diseased trabecular meshwork, creating an aqueous drainage channel, thereby lowering intraocular pressure. Traditional trabeculectomy mainly uses limbus as a substrate, cuts the bulbar conjunctiva at 10-2 points, separates subconjunctival tissues, cauterizes and stops bleeding, uses the limbus as a substrate at 12 points, takes a rectangular shape with the size of 4mm multiplied by 3mm,1/2 of the thickness of a film, then makes anterior chamber puncture, makes two radial vertical line scleral incisions with the distance of 3mm on a deep scleral bed at 12 points, resects about 1.5mm cornea small Liang Mo tissues before the posterior border of the limbus, resects peripheral irises, and finally sews scleral flaps and bulbar conjunctiva to form anterior chamber. The above-mentioned mode has many and serious complications, if the conjunctiva flap and the sclera flap are needed to be made, the conjunctiva and the sclera are damaged and scar is formed, the thickness of the sclera flap is not easy to grasp, and the incision, the tearing and the like are easy to occur; scleral thinning occurs post-operatively; scar hyperplasia after scleral surface cauterization hemostasis operation increases aqueous humor removal resistance; sympathogenic ophthalmia may occur with root iris incarceration in the trabecular incision; filtering bleb scar after operation, blocking aqueous outflow channel, and increasing intraocular pressure again; the postoperative appearance of superficial anterior chamber, ocular hypertension, malignant glaucoma, need further surgery; pigment membranitis, even endophthalmitis, upward movement of pupils, and iris adhesion appear; retinal detachment or choroidal detachment; the postoperative conjunctival suture causes ocular foreign body sensation or pain.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the auxiliary device for trabecular resection, which has the advantages of small trauma, less complications, good effect and simple postoperative care.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the trabecular resection auxiliary equipment is characterized by comprising a sleeve and a cutting body, wherein the sleeve is sleeved outside the cutting body, and the front end of the sleeve is in a curved needle shape; the cutting body is composed of a solid cylinder part and a head part with an arc-shaped cross section, and the head part of the cutting body faces forward when the cutting body penetrates into the sleeve.

Preferably, the cutting body is made of PMMA.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model supports the cornea incision through the arrangement of the sleeve, releases the extrusion force generated by the cornea incision on the cutting body, is convenient for the cutting body to pass in the annular Schlemm tube, and the curved needle-shaped part at the front end of the sleeve can cut a small incision on the trabecular meshwork, is convenient for the cutting body to enter the Schlemm tube, does not need extra instruments to cut the trabecular meshwork, further avoids the damage to the intraocular structure caused by repeated operation, has fewer operation steps, simple operation, short time, shorter learning curve and fewer and light complications, thereby reducing the risks of choroidal separation, choroidal bleeding, malignant glaucoma, superficial anterior chamber and the like.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

And parts not described in detail below should be performed as in the prior art.

As shown in fig. 1, the trabecular resection auxiliary device of the present utility model comprises a sleeve 1 and a cutting body 2, wherein the sleeve 1 is formed by integrally molding a sleeve main body and a needle-shaped part 1.1, the sleeve 1 is sleeved outside the cutting body 2 and is in contact fit with the cutting body 2 (i.e. the cutting body 2 can move along the central axis of the sleeve 1 when the cutting body 2 is pushed or pulled; the front end of the sleeve 1 is in a curved needle shape and is curved away from the central axis of the sleeve main body 1, namely a curved needle-shaped part 1.1, and the curved needle-shaped part 1.1 is obliquely cut by 30 degrees from top to bottom and from left to right (namely an inclined plane incision is formed on one side of the needle-shaped part 1.1), so that the cutting body 2 can conveniently penetrate out of the sleeve 1; the cutting body 2 is composed of a solid cylinder part 2.1 and a head part 2.2 with an arc-shaped cross section, the head part 2.2 of the cutting body is forward when the cutting body 2 penetrates into the sleeve, and the head part 2.2 of the cutting body 2 has the function of reducing the damage to structures such as Schlemm outer wall, ciliary body, cornea, retina and the like during operation and is beneficial to penetrating into an annular Schlemm tube.

When the surgical incision is used, transparent cornea incision and side incision are taken, sodium hyaluronate is injected into the anterior chamber, under the gonioscopy, the sleeve 1 is embedded into the cornea incision, the trabecular meshwork is cut into small incisions through the needle-shaped part 1.1 of the sleeve, the head 2.2 of the cutting body 2 is firstly led into the Schlemm tube under the help of the sleeve 1, after the cutting body 2 penetrates into the annular Schlemm tube for a week, the head 2.2 of the cutting body 2 is clamped by using intraocular forceps and pulled out of the eyes, the two ends of the eye of the cutting body 2 are pulled, the operation can be completed by tearing the Schlemm tube, after the Schlemm tube is torn, the outflow of aqueous humor is increased, so that the intraocular pressure is effectively reduced, and the purpose of treating glaucoma is achieved. The utility model is used for operation without making conjunctival flap, scleral flap and iris incision, and does not damage conjunctiva, sclera and iris, so that the conjunctiva, sclera scar or (and) thinning, iris hemorrhage and pupil deformation can not be caused, and the conjunctival suture is not needed, so that the foreign body sensation or pain of eyes can not be caused; the structure such as conjunctiva, sclera, ciliary body and the like can not be damaged, the operation is safer, the operation is simpler, and the operation time is shorter.

Claims

1. The auxiliary trabecular resection device is characterized by comprising a sleeve and a cutting body, wherein the sleeve is sleeved outside the cutting body, and the front end of the sleeve is in a curved needle shape; the cutting body is composed of a solid cylinder part and a head part with an arc-shaped cross section, and the head part of the cutting body faces forward when the cutting body penetrates into the sleeve.

2. Trabeculectomy aid according to claim 1, wherein the cutting body is formed of PMMA.