CN2169403Y

CN2169403Y - Microscopic trabecula removal fixation clamp

Info

Publication number: CN2169403Y
Application number: CN 93243001
Authority: CN
Inventors: 王红岩
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-24
Filing date: 1993-10-24
Publication date: 1994-06-22
Anticipated expiration: 2003-10-24

Abstract

The utility model provides a microscopic fixing clamp for trabecula removal, which belongs to the technical field of operating apparatus for eye surgeries. The utility model is characterized in that the microscopic fixing clamp comprises an elastic left blade (1) and a right blade (4) in the identical shape, which are oppositely arranged along the vertical direction; the upper parts of the two blades are fixed together. The bottom of the right blade (4) lies above the bottom of the left blade (1), and both ends are respectively connected with a right fixed block (3) and a left fixed block (2); the included angles respectively between the two fixed blocks and the two blades are both larger than 90 DEG. The utility model can fix the trabecula to be removed, and provide a removing template so as to be used for removing the trabecula accurately and rapidly with no loss.

Description

Microscopic trabecula removal fixation clamp

This utility model provides a kind of micro-trabecular resection fixation clamp, belongs to employed operating apparatus in a kind of clinical ophthalmology operation, specifically is to belong to a kind of employed operating apparatus in glaucomatous " trabecular resection operation " that can be applicable to treat.

The trabecular resection operation is an art formula comparatively successful in the present glaucoma surgical drainage.From Cairns(1960) be applied to for the first time clinical since, prove through reality, fruitful, generally acknowledged by ophthalmic industry, in clinical treatment, extensively carry out.(seeing " ophthalmology dictionary ", Wang Chaoting, Cui Guoyi chief editor, Henan science and technology publishing house, front page in 1991), but when girder being excised operation, now still adopt the straightforward manipulation method, quite high to the specification requirement of operator.Exist following shortcoming when doing trabecular resection: 1, cut and wear a side sclera, the 1.5-2mm of being separated by cuts when wearing opposite side again, comparatively the difficulty, reason be aqueous humor excessive after, intraocular pressure descends rapidly, the eyeball deliquescing; 2, be prone to otch; 3, the excision width is accurately poor; 4, the knife edge easily injures iris.After patent documentation and industry document are retrieved, learn, domestic in the trabecular resection operation, does not still have at present girder can be cut with apparatus appearance fixing and accurately excision.

The problems referred to above that occur when excising girder during this utility model is performed the operation at trabecular resection, and provide a kind of micro-trabecular resection fixation clamp, this fixation clamp can be with the girder administration of fixed that should excise, and the model of excision is provided, use this fixation clamp can be accurately, harmless, do trabecular resection quickly.

The purpose of this utility model is achieved through the following technical solutions:

The micro-trabecular resection fixation clamp that this utility model provides, it comprises that two vertically are oppositely arranged and mutually the same elasticity lobus sinister sheet (1) and the lobus dexter sheet (4) of shape that their top is solidly connected with each other, the bottom of lobus dexter sheet (4) is in the top of lobus sinister sheet (1) bottom and is connected to right fixed block (3) and left fixed block (2) respectively at the two ends place, and two fixed blocks and two interlobate angles are all greater than 90 °.When two fixed blocks are closed, right fixed block (3) and tight contact overlapped with left fixed block (2).

The micro-trabecular resection fixation clamp that provides according to this utility model, the area of right fixed block (3) is less than the area of left fixed block (2), right fixed block (3) is the concave surface that radius of curvature equals 5.75mm along a lateral surface of its length direction, and two fixed blocks and two interlobate angles are 120 °.Excision district when at this moment, right fixed block (3) will become operation itself.

The micro-trabecular resection fixation clamp that provides according to this utility model, left side fixed block (2) equates with the area of right fixed block (3), the medial surface that right fixed block (3) is provided with a strip gab (5) and right fixed block (3) upper edge strip gab (5) length direction is the convex surface that radius of curvature equals 5.75mm, and two fixed blocks and two interlobate angles are 120 °.Excision district when at this moment, the strip gab (5) on the right fixed block (3) will become operation.

Two hand operateds design about micro-trabecular resection fixation clamp provided by the utility model can supply, during operation identical with trabecular resection each step of performing the operation, just when the excision girder, use micro-trabecular resection fixation clamp fixing after excision.Be designed to example for left-handed operation below, the concrete operations step of this utility model in the trabecular resection operation is described in detail in detail: 1, left side under scleral flap, 0.5mm place before the elongation sclera translucent areas, 2.4mm backward, vertical cut is worn sclera, long 2.4mm; 2 left hands are held fixation clamp, be parallel to corneoscleral junction, its left fixed block (2) level is entered under the interior sclera of eyeball, fixation clamp closes up, right fixed block (3) and tight contact overlapping outside eyeball with left fixed block (2), such two fixed blocks (2), (3) corneoscleral junction that just will be to be excised is firmly fixed, and right fixed block (3) itself or the strip gab on it (5) are just as the excision district, because right fixed block (3) area is not more than left fixed block (2), the two stack mutually and left fixed block (2) be in right fixed block (3) under, so left fixed block (2) plays a kind of supporting to right fixed block (3) and limits the effect of notch depth, the model effect when right fixed block (3) itself or the strip gab on it (5) then play the excision girder; 3, the right hand is held scalpel and is done the corneoscleral junction otch along forward and backward, right three lateral surface of right fixed block (3) or along the periphery of the last strip gab (5) of right fixed block (3), and after holostrome was cut and worn sclera, the trabecular resection operation was promptly accused and finished.Therefore, use micro-trabecular resection fixation clamp to do the trabecular resection operation and compare with existing traditional trabecular resection mode, have following superiority: 1, excision is easy and simple to handle, and the abecedarian can grasp; 2, once finish excision, excision position and sizableness are accurate; 3, otch is vertical, and excision rapidly; 4, little to ocular tissue's damage, can not injure iris, corpus ciliare, crystal and vitreous body during the excision girder.

Description of drawings:

Fig. 1 is the structural representation of first embodiment of this utility model;

Fig. 2 is the closure state figure of first embodiment of this utility model;

Fig. 3 is the structural representation of second embodiment of this utility model;

Fig. 4 is the closure state figure of second embodiment of this utility model.

Wherein: 1 lobus sinister sheet, 2 left fixed block 3 right fixed block 4 lobus dexter sheets 5 strip gabs.

Embodiment one:

Referring to Fig. 1, Fig. 2, in the present embodiment, a left side, right fixed block (2), (3) length * wide * thick size is respectively 4.5mm * 2mm * 0.5mm and 4mm * 1mm * 0.5mm, two fixed blocks and two interlobate angles are 120 °, the upper surface of left side fixed block (2) also is provided with anti-skidding striped, can guarantee that blade is difficult for skidding when the excision girder, right fixed block (3) is the concave surface that radius of curvature equals 5.75mm along the anterolateral surface of its length direction, this is to equal the unique design that 11.5mm carries out for adapting to the cornea diameter, the Lin Shi of the Soviet Union pipe that postoperative otch is met more be positioned at the girder place out of shape, thereby improve the effect of surgical drainage greatly, Fig. 1, the described version of Fig. 2 is for designing for left-handed operation; As will being designed to for right-hand operated, the right hand is held micro-trabecular resection fixation clamp when promptly performing the operation, and left hand is held scalpel, then only needs to get final product making the concave surface that radius of curvature equals 5.75mm along the back lateral surface of its length direction in the right fixed block (3).

Embodiment two:

Referring to Fig. 3, Fig. 4, in the present embodiment, a left side, right fixed block (2), (3) length * wide * thick size is respectively 4.5mm * 2mm * 0.5mm and 4.5mm * 2mm * 0.5mm, two fixed blocks and two interlobate angles are 120 °, the upper surface of left side fixed block (2) also is provided with anti-skidding striped, can guarantee that blade is difficult for skidding when the excision girder, right fixed block (3) is gone up the length * wide * thick 4mm * 1mm * 0.5mm that is of a size of of set strip gab (5), the anteromedial surface of right fixed block (3) upper edge strip gab (5) length direction is the convex surface that radius of curvature equals 5.75mm, this also is for making when operation otch meet the Lin Shi of Soviet Union pipe unique design of making out of shape, Fig. 3 more, the described version of Fig. 4 is also for designing for left-handed operation; As will being designed to for right-hand operated, then only needing back medial surface with right fixed block (3) upper edge strip gab (5) length direction make the convex surface that radius of curvature equals 5.75mm and get final product.

Two embodiment of the present utility model all can adopt known mechanical processing technique manufacturing, and material can be used rustless steel.It is standby to make the back sterilization.

Claims

1, a kind of micro-trabecular resection fixation clamp, it is characterized in that: it comprises that two vertically are oppositely arranged and mutually the same elasticity lobus sinister sheet (1) and the lobus dexter sheet (4) of shape that their top is solidly connected with each other, the bottom of lobus dexter sheet (4) is in the top of lobus sinister sheet (1) bottom and is connected to right fixed block (3) and left fixed block (2) respectively at the two ends place, and two fixed blocks and two interlobate angles are all greater than 90 °.

2, micro-trabecular resection fixation clamp according to claim 1, it is characterized in that: the area of right fixed block (3) is less than the area of left fixed block (2), right fixed block (3) is the concave surface that radius of curvature equals 5.75mm along a lateral surface of its length direction, and two fixed blocks and two interlobate angles are 120 °.

3, micro-trabecular resection fixation clamp according to claim 1, it is characterized in that: left fixed block (2) equates with the area of right fixed block (3), the medial surface that right fixed block (3) is provided with a strip gab (5) and right fixed block (3) upper edge strip gab (5) length direction is the convex surface that radius of curvature equals 5.75mm, and two fixed blocks and two interlobate angles are 120 °.