CN213607391U - Can prolong interior limiting membrane tweezers - Google Patents

Abstract

The invention discloses a pair of tweezers capable of prolonging an inner limiting membrane, which comprises a handle part, a tweezers rod part, a tweezers head part and an extension part, wherein the handle part comprises a pressing type elastic sheet and a central handle, the tail end of the pressing type elastic sheet is fixed with the central handle, the front end of the pressing type elastic sheet can be pressed and stretched to push an outer sleeve of the central rod to move back and forth, and the opening and closing of the temporal head are controlled. When the operation of the patient with the long axis of the eye is performed, the two ends of the forceps rod part can be separated by force, and the extending part is inserted into the two ends of the forceps rod part to extend the forceps rod part, so that the operation is performed. The forceps rod can be adjusted in length, and the problems that the inner limiting membrane of a patient with a long axis of the eye is difficult to tear due to insufficient length of the forceps are solved; can also be used for the operation of patients with normal ocular axis, and realizes the multiple functions of one forceps. The success rate of the operation is improved, the operation time is reduced, the operation risk and complications are reduced, and the operation is safe.

Description

Can prolong interior limiting membrane tweezers

Technical Field

The invention relates to a pair of forceps capable of prolonging an inner limiting membrane, belonging to microsurgery forceps used in ophthalmology.

Background

The eye is one of the most important human sense organs, and different tools are used in different ophthalmic surgeries due to the narrow closed space in the eye and the complex structure of tissues in the eye; the length of the axis of the eye of the normal population is usually 22mm-24mm, while the axis of the eye of highly myopic patients can reach 33mm or more. Because the ocular axis of the highly myopic patient is far longer than that of normal people and the length of the existing inner limiting membrane forceps is limited, when the vitreous body operation of the people is performed, the operation operations such as tearing off the inner limiting membrane and the like are difficult to perform due to the fact that the length of the inner limiting membrane forceps is not enough, and therefore the operation effect is influenced.

Disclosure of Invention

Aiming at the defects of the existing surgical equipment, the invention aims to provide the forceps capable of prolonging the inner limiting membrane, which can increase the controllability of the inner limiting membrane of a patient with a long axis of eyes in the operation by prolonging the length of the forceps rod, and solve the problem that the operation such as tearing off the inner limiting membrane is difficult to be performed due to insufficient length of the forceps. When the medical forceps is used, the length of the forceps rod can be adjusted according to the eye axis of a patient, so that medical workers can operate more easily, and the problems in the background art are solved.

The technical scheme adopted for realizing the purpose of the invention is as follows:

the extendable inner limiting membrane forceps comprise a handle part, a forceps rod part, a forceps head part and an extension part, wherein the handle part comprises a press-able elastic sheet and a central handle, the tail end of the press-able elastic sheet is fixed with the central handle, the front end of the press-able elastic sheet can be pressed and stretched to push an outer sleeve of the central rod to move back and forth and control the opening and closing of the temporal head, and the temporal head is of a fixed-size hollow structure and can be used for clamping retinal tissues; the diameter of the forceps rod part is smaller than the inner diameter of the 23G or 25G sclera puncture sleeve, the outer layer sleeve is made of non-magnetic material, and the central rod of the forceps rod part is made of strong magnetic material; the two ends of the rod part of the forceps can be separated; the length of the extension part is about 10mm, the diameter of the outer sleeve of the extension part is smaller than the inner diameter of the sclera puncture sleeve of 23G or 25G, the outer sleeve of the extension part is made of non-magnetic materials, the center rod of the extension part is made of strong magnetic materials, and the extension part can be inserted into the center of the forceps rod part to achieve the extension effect.

Wherein, but the outer layer of handle portion push type shell fragment skin decoration antiskid line to press the outer sleeve pipe back-and-forth movement of flexible promotion tweezers pole, the outer sleeve pipe position of tweezers pole is with do not influencing opening and shutting of tweezers head and be suitable, works as the outer tube slide backward the tweezers head open, the tweezers point is opened and shut the distance and is used 1.0mm as being suitable, temporocephalic closed space is fixed size.

The outer layer of the handle part can be made of elastic plastic or elastic metal materials or any other elastic materials in a pressing mode.

The forceps head is made of a titanium alloy material.

The diameter of the rod part of the forceps is smaller than the inner diameter of the sclera puncture cannula of 23G or 25G; the outer sleeve is made of non-magnetic material; the central rod of the forceps rod part is made of strong magnetic material; the two ends of the forceps rod part can be separated.

The length of the extension part is about 10mm, the diameter of the outer-layer sleeve is smaller than the inner diameter of the 23G or 25G sclera puncture sleeve, and the outer-layer sleeve is made of non-magnetic materials; the central rod is made of strong magnetic material.

Compared with the prior art, the invention has the beneficial effects that:

the length of the forceps rod can be adjusted according to the eye axis of a patient in the operation, so that medical staff can operate more easily, and the problem of difficult operation such as inner limiting membrane tearing and the like due to insufficient length of the forceps with the inner limiting membrane for patients with long eye axis is solved; can also be used for the operation of patients with normal ocular axis, and realizes the multiple functions of one forceps. The controllability in the operation process is improved, the operation success rate is improved, the operation time is reduced, the operation risk and complications are reduced, and the operation is safe.

Drawings

FIG. 1 is a schematic diagram of an extendable inner limiting membrane forceps extended state structure; fig. 2 is a schematic diagram of a normal state structure of the extendable inner limiting membrane forceps.

The reference numbers in the figures illustrate: 1-handle, 2-forceps rod, 3-forceps head, 4-extending part, 11-pressing type elastic sheet, 12-central handle, 21-separable central rod, 22-separable outer layer sleeve, 23-forceps tip, 24-extending part central rod and 25-extending part outer layer sleeve.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the figure: 1-handle, 2-forceps rod, 3-forceps head, 4-extending part, 11-pressing type elastic sheet, 12-central handle, 21-separable central rod, 22-separable outer layer sleeve, 23-forceps tip, 24-extending part central rod and 25-extending part outer layer sleeve.

As shown in fig. 1, the extendable inner limiting membrane forceps of the present invention includes a handle portion, a forceps rod portion, a forceps head portion, and an extension portion, wherein a central handle 12 of the handle 1 is made of plastic or metal, and an outer layer depressible elastic sheet 11 is made of elastic plastic or elastic metal. The diameter of the separable outer sleeve 22 of the forceps rod 2 is smaller than the inner diameter of the 23G or 25G sclera puncture sleeve, and the separable outer sleeve is made of non-magnetic materials; the separable center rod 21 is made of a strong magnetic material. The forceps head 3 is a straight micro forceps, the closed space of the temporal head is a fixed size, and the material is titanium alloy material. The length of the extension 4 is about 10mm, the extension outer sheath 25 is magnetically insensitive, and the extension central rod 24 is strongly magnetic.

The forceps body 1 comprises pressing type elastic sheets 11 and a central handle 12, the pressing type elastic sheets 11 are arranged on two sides of the handle 1 or surround the handle 1 in 360 degrees, and anti-skid lines are rolled on the outer layer. The central rod 21 is arranged at the front end of the central handle 12, an outer sleeve 22 is arranged outside the central rod, one end of the outer sleeve 22 is connected with the pressing type elastic sheet 11, the other end is free, and the forceps head 3 is fixedly arranged at the head end of the central rod 21.

When the depressible resilient tab 11 is depressed, the outer sleeve 22 is pushed forward to close the forcep head 3 and thereby pass through the incision into the eye. When the pressing type elastic sheet 11 is loosened, the outer layer sleeve 22 moves backwards to open the forceps heads 3, after the forceps tips 23 clamp the retinal tissue, the pressing type elastic sheet 11 is pressed again to close the forceps heads 3, so that the retinal tissue is clamped for operation. When in use, the medical staff can hold the forceps body 1 with one hand to carry out the corresponding artificial lens operation. When the operation of the patient with the long axis of the eye is performed, the two ends of the forceps rod part can be separated by force, and the extending part is inserted into the two ends of the forceps rod part to extend the forceps rod part, so that the operation is performed.

The above descriptions are the detailed descriptions of the present invention with reference to the preferred embodiments, and the specific implementation of the present invention cannot be considered as limited to these, and the simple deduction and replacement made without departing from the spirit of the present invention should be considered as the protection scope of the present invention.

Claims (5)

1. An extendable inner limiting membrane forceps, which comprises

The handle part (1) comprises a pressing type elastic sheet and a central handle;

the center rod of the tweezer rod part (2) is fixed at one axial end of the handle part (1), the outer layer sleeve of the tweezer rod part can be pushed by the push-type elastic sheet to control the opening and closing of the tweezer head part, and the two ends of the tweezer rod part are respectively connected with the extension part (4) after the center of the tweezer rod part can be separated;

the forceps head (3) is fixedly arranged at the end part of the central rod of the forceps rod;

the extension part (4) can be inserted into the forceps rod part (2) to achieve the extension function;

the method is characterized in that: the tweezers rod part is the extensible structure, can prolong tweezers rod part and operate when needing, and handle portion is including push type shell fragment and central handle, but the terminal fixed with central handle of push type shell fragment, the front end can be pressed and is stretched out and drawn back, promotes the outer sleeve pipe back-and-forth movement of positioning rod, controls the temporalis head and opens and shuts, and the temporalis head is fixed big or small hollow structure, can be used to tissues such as centre gripping retina.

2. The extendable inner limiting membrane forceps of claim 1, wherein: the length of the extension part is about 10mm, the diameter of the outer sleeve is smaller than the inner diameter of the 23G or 25G sclera puncture sleeve, the outer sleeve is made of non-magnetic materials, and the central rod is made of strong magnetic materials.

3. The extendable inner limiting membrane forceps of claim 1, wherein: the diameter of the outer sleeve of the forceps rod part is smaller than the inner diameter of the 23G or 25G sclera puncture sleeve, the outer sleeve is made of non-magnetic materials, the center rod of the forceps rod part is made of strong magnetic materials, and two ends of the forceps rod part can be separated.

4. The extendable inner limiting membrane forceps of claim 1, wherein: the central handle material of the handle part is plastic or metal material, and the outer layer pressing type elastic sheet is elastic plastic or elastic metal material.

5. The extendable inner limiting membrane forceps of claim 1, wherein: the forceps head is made of an elastic titanium alloy material.

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