CN202537757U

CN202537757U - Foreign body forceps for ophthalmic operation

Info

Publication number: CN202537757U
Application number: CN201220062845XU
Authority: CN
Inventors: 万光明; 梁申芝
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-24
Filing date: 2012-02-24
Publication date: 2012-11-21
Anticipated expiration: 2022-02-24

Abstract

The utility model discloses a pair of foreign body forceps for an ophthalmic operation. The pair of forceps comprises two claws for grabbing foreign bodies and a sleeve which is sleeved on the two claws and used for controlling the two claws to close or separate by virtue of front and back sliding, wherein cutting blades which extend along the front and back sliding direction of the sleeve are arranged on separated outer sides of the two claws; edges of the two cutting blades are outward; the two claws of the foreign body forceps in a folding state enter vitreum cavities of eyes from a sclera puncture port, the sleeve is pulled backward, the foreign body forceps are opened to clamp a foreign body, and the foreign body is taken out from the puncture port; if the foreign body is too big, the cutting blades are additionally arranged on outer sides of the two claws, the cutting blades automatically and parallel cut the original puncture port when the claws are pulled backward, so that the size of the puncture port is enlarged to guarantee that the foreign body can be taken out in one time, and an operation step of enlarging the puncture port for the second time is not required. Therefore, the operation time can be shortened, pains of a patient can be lightened, and complications caused by secondary enlargement are avoided.

Description

A kind of ophthalmologic operation is used foreign body forceps

Technical field

This utility model belongs to the ophthalmologic operation field of tool, is specifically related to a kind of foreign body forceps.

Background technology

Ocular injury is one of important blinding factor of ophthalmology with the ocular injury of intraocular foreign body especially, if deal with improperly, can cause losing one's sight, serious consequence such as atrophy of eyeball.Along with carrying out of vitreous excision microsurgery, take out foreign body down through the microscope direct-view, the taking-up success rate of intraocular foreign body is obviously improved.

The structure of the surgical forceps that ophthalmologic operation is used such as Granted publication number are the structure of tweezer or foreign body forceps structure as shown in Figure 1 in disclosed a kind of ophthalmologic operation ball among the CN2162939Y; Both structures and operation principle are basic identical; Include tubular handle 1; 1 front opening place is coated with sleeve pipe 3 in tubular handle; Sleeve pipe 3 axially cooperates with tubular handle 1 sliding plug along tubular handle, and sleeve pipe 3 is slided in tubular handle through the linkage driving that is arranged between operating grip and the sleeve pipe by the operating grip 2 that is installed on the tubular handle, in sleeve pipe 3 and tubular handle 1, is set with the tweezer claw; The tweezer claw is by extending in the pipe handle and constitute with the fixed bar of the fixing assembling of pipe handle and the two tweezer pawls 4 that are positioned at the fixed bar front end, along with telescopic front and back Sliding Control two tweezer pawls 14 near gathering or deviate from mutually and open.During use, move towards two tweezer pawl directions through drive sleeve, two tweezer pawls 4 receive sleeve pipe 3 extruding and close up; Tweezer mouth closure is with the gripping foreign body; And when sleeve pipe when the tubular handle direction moves, two tweezer pawls separate automatically, the tweezer mouth opens to decontrol foreign body or to prepare the gripping foreign body.When not using foreign body forceps, sleeve pipe is pulled to two tweezer pawls forward draws the position in sleeve pipe fully in, thereby protect two tweezer pawls.

When stating the surgical forceps extracting foreign body of structure in the use; The sclerotic puncture mouth diameter of conventional 20G vitrectomy is 1mm, and less foreign body can easily take out through puncture orifice, but relatively large foreign body then need enlarge the sclerotic puncture mouth when puncture orifice is taken out; How the expansion of puncture orifice is by virtue of experience carried out in clinical; Cause puncture orifice excessive, or the too small need of puncture orifice carry out secondary expansion, cause unnecessary damage.Puncture orifice is crossed and may well be injured corpus ciliare or retina, and causes postoperative astigmatism probability bigger after sewing up.The too small foreign matters of otch is once taken out, and then need foreign body be put back to ophthalmic and carry out secondary expansion otch, might cause damage to retina.Even if foreign body is scraped otch and is taken out, possibly cause the irregular laceration of puncture orifice, might damage surrounding tissue, bring difficulty also for the stitching of puncture orifice.How once safety foreign body is taken out improved the intraocular foreign body success rate of operation, and postoperative is kept a key factor of better visual function.

The utility model content

The purpose of this utility model is to provide a kind of ophthalmologic operation to use foreign body forceps, the technical problem that can not once take out foreign body when solving intraocular foreign body in the prior art greater than the sclerotic puncture mouth size of cutting in advance.

For realizing above-mentioned purpose; The ophthalmologic operation that this utility model provided adopts following technical scheme with foreign body forceps: a kind of ophthalmologic operation is used foreign body forceps; Pass through front and back Sliding Control two tweezer pawls near drawing in or deviating from open sleeve pipe mutually on comprising the two tweezer pawls that are used to grasp foreign body and being sleeved on two tweezer pawls; All have the cutting edge that glide direction is extended along the inner sleeve front and back on the lateral surface that deviates from mutually of described two tweezer pawls, the cutting edge of two cutting edges all outwardly.

The position flush of the cutting edge of described two cutting edge rear ends on two tweezer pawls.

The cutting edge of described two cutting edge rear ends is the wedge structure that is tilted to extend along the past direction backward to the cutting edge root by the cutting edge top.

On the described telescopic inner tubal wall symmetric arrangement be useful on two tweezer pawls on the corresponding adaptive two protection grooves of cutting edge; Each protection groove surrounds by two groove sidewalls and the said telescopic inner tubal wall that the said cutting edge bearing of trend in edge that is installed on the inner tubal wall extends, and has the gap that holds that when two tweezer pawls are regained in the sleeve pipe, is used to hold said cutting edge between the two groove sidewalls in described each protection groove.

Described cutting edge is fixedly mounted on the described tweezer pawl outside.

The beneficial effect of this utility model is: when adopting the foreign body forceps gripping foreign body that this utility model provided; At first two tweezer pawls of foreign body forceps are getting in the vitreous chamber of human eye from the sclerotic puncture mouth of rounding state; Pulled backwards sleeve pipe, foreign body forceps open with the gripping foreign body, take out foreign body from puncture orifice; When the puncture orifice size satisfies requiring of taking-up foreign body, can disposable taking-up foreign body.And it is excessive to work as foreign matter size, because the outside of two tweezer pawls installs additional and adds cutting edge, when pulled backwards tweezer pawl; The cutting edge auto-paralleling cuts former puncture orifice; The puncture orifice size is enlarged to guarantee the disposable taking-up of foreign body, so just do not need secondary to enlarge the surgical operation step of puncture orifice, thereby shorten operating time; Alleviate the patient suffering, the complication of avoiding the secondary enlarging to cause.

Description of drawings

Fig. 1 is the structural representation of foreign body forceps of the prior art;

Fig. 2 is the structural representation of the ophthalmologic operation that provides of this utility model with a kind of embodiment of foreign body forceps;

Fig. 3 is the A place enlarged drawing among Fig. 2;

Fig. 4 is the B-B place cutaway view among Fig. 3.

The specific embodiment

As scheme Fig. 2, Fig. 3, shown in Figure 4; A kind of ophthalmologic operation is with the embodiment of foreign body forceps; Foreign body forceps among this embodiment comprises tubular handle 11 and endwisely slips along tubular handle and is assemblied in the sleeve pipe 13 at tubular handle front opening place; Sleeve pipe 13 is slided in tubular handle through the linkage driving that is arranged between operating grip and the sleeve pipe by the operating grip 12 that is installed on the tubular handle; In tubular handle 11 and sleeve pipe 13, be coated with the tweezer claw, this tweezer claw comprises fixed bar that is installed on the tubular handle inner tubal wall and the two tweezer pawls 14 that extend tubular handle that are positioned at the fixed bar front end, along with telescopic front and back Sliding Control two tweezer pawls 14 near gathering or deviate from mutually and open; All has the cutting edge 15 that extends along tweezer pawl bearing of trend on the lateral surface that described two tweezer pawls 14 deviate from mutually; The cutting edge here fixedly is assemblied on the two tweezer pawls, the cutting edge of two cutting edges 15 all outwardly, the position flush of the cutting edge of two cutting edge rear ends on two tweezer pawls.In the present embodiment, the cutting edge of two cutting edge rear ends is the wedge structure that is tilted to extend along the past direction backward to the cutting edge root by the cutting edge top.

Preferably; In the present embodiment; Symmetric arrangement on the inner tubal wall of sleeve pipe 13 be useful on two tweezer pawls on the corresponding adaptive two protection grooves 16 of cutting edge; Each protection groove surrounds with said telescopic inner tubal wall by two groove sidewalls 17 that the said cutting edge bearing of trend in edge that is installed on the inner tubal wall extends, and has the gap that holds that when two tweezer pawls are regained in the sleeve pipe, is used to hold said cutting edge between the two groove sidewalls in described each protection groove.

During use, at first two tweezer pawls 14 of foreign body forceps be rounding state in the sclerotic puncture mouth gets into vitreous chamber, pulled backwards sleeve pipe 13; Foreign body forceps opens with the gripping foreign body; Take out foreign body from puncture orifice, when the puncture orifice size satisfies requiring of taking-up foreign body, can disposable taking-up foreign body.And excessive when foreign matter size, because the outside of two tweezer pawls 14 installs additional and adds cutting edge, when pulled backwards tweezer pawl, cutting edge 15 auto-parallelings cut former puncture orifice, and the puncture orifice size is enlarged to guarantee the disposable taking-up of foreign body.

In the foregoing description, the cutting edge of two cutting edge rear ends is wedge structure, thereby conveniently puncture orifice is cut, and alleviates patient's slight illness.

In the above-described embodiments, cutting edge is fixedly mounted on the two tweezer pawls, and in other embodiments, two cutting edges also can be the structures that tweezer pawl one is extended.

In the above-described embodiments, on telescopic inner tubal wall, preferably be provided with the protection groove, after two tweezer pawls drew in in the sleeve pipe, the cutting edge on the two tweezer pawls got into the protection of holding the groove that is protected in the gap like this.

Claims

1. an ophthalmologic operation is used foreign body forceps; Pass through front and back Sliding Control two tweezer pawls near drawing in or deviating from open sleeve pipe mutually on comprising the two tweezer pawls that are used to grasp foreign body and being sleeved on two tweezer pawls; It is characterized in that: all have the cutting edge that glide direction is extended along the inner sleeve front and back on the lateral surface that deviates from mutually of described two tweezer pawls, the cutting edge of two cutting edges all outwardly.

2. ophthalmologic operation according to claim 1 is used foreign body forceps, it is characterized in that: the position flush of the cutting edge of described two cutting edge rear ends on two tweezer pawls.

3. ophthalmologic operation according to claim 2 is used foreign body forceps, it is characterized in that: the cutting edge of described two cutting edge rear ends is the wedge structure that is tilted to extend along the past direction backward to the cutting edge root by the cutting edge top.

4. use foreign body forceps according to claim 1 or 2 or 3 described ophthalmologic operations; It is characterized in that: on the described telescopic inner tubal wall symmetric arrangement be useful on two tweezer pawls on the corresponding adaptive two protection grooves of cutting edge; Each protection groove surrounds by two groove sidewalls and the said telescopic inner tubal wall that the said cutting edge bearing of trend in edge that is installed on the inner tubal wall extends, and has the gap that holds that when two tweezer pawls are regained in the sleeve pipe, is used to hold said cutting edge between the two groove sidewalls in described each protection groove.

5. use foreign body forceps according to claim 1 or 2 or 3 described ophthalmologic operations, it is characterized in that: described cutting edge is fixedly mounted on the described tweezer pawl outside.