CN211049839U - Micro needle holding forceps for ophthalmologic operation - Google Patents

Abstract

The utility model relates to a microscopical needle forceps for ophthalmic surgery, it includes: the clamp comprises a first clamp body, a second clamp body and a third clamp body, wherein the first clamp body comprises a first clamp handle, a first clamp head formed at one end of the first clamp handle, a first hard alloy sheet fixed on the inner surface of the first clamp head, a first arc sheet fixed at the other end of the first clamp handle and a clamping sheet group fixed on the inner surface of the first clamp handle, and a first needle holding pattern is formed on the inner surface of the first hard alloy sheet; a second clamp body. The hard alloy sheet with the needle holding grains is fixedly formed on the inner surfaces of the first forceps head and the second forceps head, and the clamping sheet group and the clamping seat which are matched with each other are respectively fixed on the inner surfaces of the first forceps handle and the second forceps handle, so that when the forceps head of the needle holding forceps holds a needle, the clamping sheet group and the clamping seat can be clamped to keep a needle holding state, and the working strength of a doctor is greatly reduced.

Description

Micro needle holding forceps for ophthalmologic operation

Technical Field

The utility model belongs to the field of medical equipment, a needle holding forceps is related to, concretely relates to ophthalmic surgery is with micro needle holding forceps.

Background

The invention discloses a 201510157570.6 Chinese patent application number discloses an ophthalmic microscopic needle-holding forceps device, which comprises a forceps body and a locking device, wherein the forceps body consists of forceps heads, screw holes, anti-slip patterns, forceps arms and forceps handles, the front ends of the forceps arms are distributed in a crossed mode and fastened together through the screw holes, the forceps arms are provided with the anti-slip patterns, the anti-slip patterns are hemispherical curves surrounding the forceps arms, the front ends of the forceps arms are forceps tips, the rear ends of the forceps arms are the forceps handles, and the forceps handles are used for connecting the two ends of the forceps handles together through lock catches. The micro needle holding forceps device for eyes cannot keep the needle holding state, and a doctor is required to hold the micro needle holding forceps device all the time, otherwise, a suture needle falls off.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a pair of micro needle holding forceps for ophthalmologic operation.

In order to achieve the above object, the utility model provides a following technical scheme: a microscopical needle holder for ophthalmic surgery, comprising:

the clamp comprises a first clamp body, a second clamp body and a third clamp body, wherein the first clamp body comprises a first clamp handle, a first clamp head formed at one end of the first clamp handle, a first hard alloy sheet fixed on the inner surface of the first clamp head, a first arc sheet fixed at the other end of the first clamp handle and a clamping sheet group fixed on the inner surface of the first clamp handle, and a first needle holding pattern is formed on the inner surface of the first hard alloy sheet;

the second pincers body, the second pincers handle include with the second pincers handle that first pincers handle looks pivot connection and symmetry set up, form and be in the second binding clip of second pincers handle one end, fix second binding clip internal surface and with first carbide piece matched with second carbide piece, fix the second pincers handle other end and with the second arc piece of first arc piece looks joint and fix on the second pincers handle internal surface and with joint piece group matched with joint seat, be formed with on the internal surface of second carbide piece with first needle line matched with second is held the needle line.

Preferably, a first anti-slip convex pattern is formed on the outer surface of the first forceps handle, and a second anti-slip convex pattern is formed on the outer surface of the second forceps handle.

Preferably, the pivot connection of the first handle to the second handle is at the end of the first handle connected to the first binding clip.

Optimally, the free end of the first arc-shaped piece is provided with a clamping protrusion, and the free end of the second arc-shaped piece is provided with a bayonet matched with the clamping protrusion.

Preferably, the first forceps handle and the first forceps head are integrally connected through a first adapter block arranged between the first forceps handle and the first forceps head, the second forceps handle and the second forceps head are integrally connected through a second adapter block arranged between the second forceps handle and the second forceps head, and the first adapter block and the second adapter block are matched and are in pivot connection with each other.

Optimally, the clamping sheet set comprises a first fixed seat fixed on the inner surface of the first clamp handle, a first supporting sheet connected with the first fixed seat and extending towards the first arc-shaped sheet, and a limiting clamping sheet arranged at the end part of the first supporting sheet; the joint seat is including fixing second fixing base on the second pincers handle internal surface, with the second fixing base is connected and faces away from the second backing sheet that second arc piece direction extends and set up and be in second backing sheet tip and with spacing card matched with spacing fixture block, spacing fixture block has crossing dodge the plane and lead the arcwall face and form and be in dodge the plane with lead between the arcwall face and rather than smooth transition connection's joint recess.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses ophthalmic surgery is with micro-needle forceps, through the fixed carbide piece that is formed with the needle line of holding on the internal surface at first binding clip and second binding clip, fixed matched with joint piece group and joint seat respectively on first pincers handle and second pincers handle internal surface simultaneously, when the binding clip of needle forceps holds the needle like this, can make joint piece group and joint seat carry out the joint and keep holding the needle state, greatly reduced doctor's working strength.

Drawings

FIG. 1 is a schematic structural view of the micro needle holder for ophthalmic surgery of the present invention;

fig. 2 is a partially enlarged view of fig. 1.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings.

The microscopical needle holder for ophthalmic surgery shown in fig. 1 and 2 mainly includes a first holder body 1, a second holder body 2, and the like.

The first pliers body 1 comprises a first pliers handle 11, a first pliers head 12 (the first pliers handle 11 and the first pliers head 12 are integrally formed) formed at one end of the first pliers handle 11, a first hard alloy sheet 14 (the thickness is about 1 mm) fixed on the inner surface of the first pliers head 12, a first arc sheet 10 (the extending direction of the first arc sheet 10 faces to the second pliers body 2; the fixing mode is conventional laser welding, the same below) fixed at the other end of the first pliers handle 11 and a clamping sheet group 15 fixed on the inner surface of the first pliers handle 11; the first cemented carbide piece 14 has a first needle holding pattern formed on an inner surface thereof (an extending direction of the first needle holding pattern is determined as needed). The second forceps body 2 comprises a second forceps handle 21 which is pivoted with the first forceps handle 11 and symmetrically arranged, a second forceps head 22 (similarly, the second forceps head 22 and the second forceps handle 21 are integrally formed) which is formed at one end of the second forceps handle 21, a second hard alloy sheet 24 (the thickness is about 1 mm) which is fixed on the inner surface of the second forceps head 22 and is matched with the first hard alloy sheet 14, a second arc sheet 20 which is fixed at the other end of the second forceps handle 21 and is clamped with the first arc sheet 10 (the extending direction of the second arc sheet 20 is towards the first forceps body 1, so that a certain accommodating space is enclosed among the first forceps handle 11, the second forceps handle 21, the first arc sheet 10 and the second arc sheet 20), and a clamping seat 25 which is fixed on the inner surface of the second forceps handle 21 and is matched with the clamping sheet group 15; the inner surface of the second cemented carbide piece 24 is formed with a second needle holding pattern 241 corresponding to the first needle holding pattern. Therefore, when the first forceps head 12 and the second forceps head 22 of the needle holding forceps are matched with a needle to be held, the clamping sheet set 15 and the clamping seat 25 can be clamped to keep a needle holding state, and the working strength of a doctor is greatly reduced.

The pivotal connection of the first handle 11 to the second handle 21 is at the end where it is connected to the first jaw 12. In the present embodiment, the first handle 11 and the first binding clip 12 are arranged in a staggered manner and are not located on the same line, but are integrally connected by the first transfer block 13 arranged therebetween; the second clamp handle 21 and the second clamp head 22 are also arranged in a staggered manner and are not positioned on the same straight line, but are integrally connected through a second transfer block 23 arranged between the second clamp handle and the second clamp head; the opposite surfaces of the first transfer block 13 and the second transfer block 23 are provided with mutually independent matched grooves to ensure the smoothness of the surfaces of the first forceps body 1 and the second forceps body 2, and the first transfer block 13 and the second transfer block 23 are matched and are pivoted (namely, the pivot joint of the first forceps handle 11 and the second forceps handle 21 is positioned in the middle of the first transfer block 13 and the second transfer block 23). The first anti-slip ridge 111 is formed on the outer surface of the first forceps handle 11, and the second anti-slip ridge 211 is formed on the outer surface of the second forceps handle 21, so that the forceps can be held by a user and have an anti-slip function. The free end of the first arc-shaped piece 10 is provided with a clamping protrusion 101, and the free end of the second arc-shaped piece 20 is provided with a bayonet 201 matched with the clamping protrusion 101.

In this embodiment, the clamping sheet set 15 includes a first fixing seat 151 fixed on the inner surface of the first forceps handle 11, a first supporting sheet 152 connected to the first fixing seat 151 and extending toward the first arc-shaped sheet 10, and a limiting clamping sheet 153 disposed at an end of the first supporting sheet 152 (disposed obliquely rather than perpendicular to the inner surface of the first forceps handle 11); the clamping seat 25 comprises a second fixed seat 251 fixed on the inner surface of the second clamp handle 21, a second support piece 252 connected with the second fixed seat 251 and extending in the direction away from the second arc-shaped piece 20, and a limiting clamping block 253 arranged at the end of the second support piece 252 and matched with the limiting clamping piece 153, wherein the limiting clamping block 253 is provided with an avoiding plane 2532 and a guiding arc-shaped surface 2531 which are intersected, and a clamping groove 2533 which is formed between the avoiding plane 2532 and the guiding arc-shaped surface 2531 and is connected with the avoiding plane 2532 and the guiding arc-shaped surface 2531 in a smooth transition way;

when the surgical needle is used, a user holds the first anti-slip ridge 111 and the second anti-slip ridge 211 by hand, applies force to enable the first forceps handle 11 and the second forceps handle 21 to move oppositely, the inner surface of the limit card 153 (the limit card 153 which is obliquely arranged has an inner surface and an outer surface which are intersected) is firstly contacted with the guide arc-shaped surface 2531 and slightly deformed under the extrusion of the guide arc-shaped surface 2531 to move into the clamping groove 2533 along the guide arc-shaped surface 2531, and at the moment, the first hard alloy sheet 14 and the second hard alloy sheet 24 are ensured to clamp the surgical needle; the user continues to apply force to the first forceps handle 11 and the second forceps handle 21, when the limiting clamping piece 153 is separated from the clamping groove 2533, the user unloads the force applied to the first forceps handle 11 and the second forceps handle 21, the limiting clamping piece 153 recovers deformation (because of being made of metal material) so that the outer surface of the limiting clamping piece 153 is in contact with the avoiding plane 2532 until the limiting clamping piece 153 is separated from the avoiding plane 2532, and the first forceps handle 11 and the second forceps handle 21 do not clamp the surgical needle any more.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (6)

1. A microscopical needle holder for ophthalmic surgery is characterized in that it includes:

the first forceps body (1) comprises a first forceps handle (11), a first forceps head (12) formed at one end of the first forceps handle (11), a first hard alloy sheet (14) fixed on the inner surface of the first forceps head (12), a first arc sheet (10) fixed at the other end of the first forceps handle (11) and a clamping sheet group (15) fixed on the inner surface of the first forceps handle (11), wherein a first needle holding pattern is formed on the inner surface of the first hard alloy sheet (14);

the second pliers body (2), the second pliers handle (21) include with first pliers handle (11) looks pivot connection and the second pliers handle (21) of symmetry setting, form and be in second binding clip (22) of second pliers handle (21) one end, fix second binding clip (22) internal surface and with first carbide piece (14) matched with second carbide piece (24), fix second pliers handle (21) other end and with first arc piece (10) looks joint second arc piece (20) and fix on second pliers handle (21) internal surface and with joint piece group (15) matched with joint seat (25), be formed with on the internal surface of second carbide piece (24) with first needle holding line matched with second needle holding line (241).

2. The ophthalmic surgical micro needle forceps according to claim 1, characterized in that: a first anti-skid convex ridge (111) is formed on the outer surface of the first clamp handle (11), and a second anti-skid convex ridge (211) is formed on the outer surface of the second clamp handle (21).

3. The ophthalmic surgical micro needle forceps according to claim 1, characterized in that: the pivot connection of the first forceps handle (11) and the second forceps handle (21) is positioned at the end part of the first forceps handle connected with the first forceps head (12).

4. The ophthalmic surgical micro needle forceps according to claim 1, characterized in that: the free end of first arc piece (10) is formed with joint arch (101), the free end of second arc piece (20) seted up with joint arch (101) matched with bayonet socket (201).

5. The ophthalmic surgical micro needle forceps according to claim 1, characterized in that: the first forceps handle (11) and the first forceps head (12) are integrally connected through a first transfer block (13) arranged between the first forceps handle and the first forceps head, the second forceps handle (21) and the second forceps head (22) are integrally connected through a second transfer block (23) arranged between the second forceps handle and the second forceps head, and the first transfer block (13) and the second transfer block (23) are matched and are in pivot connection.

6. The ophthalmic surgical micro needle forceps according to claim 1, characterized in that: the clamping sheet set (15) comprises a first fixed seat (151) fixed on the inner surface of the first clamp handle (11), a first supporting sheet (152) connected with the first fixed seat (151) and extending towards the first arc-shaped sheet (10), and a limiting clamping sheet (153) arranged at the end part of the first supporting sheet (152); the clamping seat (25) comprises a second fixed seat (251) fixed on the inner surface of the second clamp handle (21), a second supporting sheet (252) connected with the second fixed seat (251) and extending towards the direction away from the second arc-shaped sheet (20), and a limiting clamping block (253) arranged at the end of the second supporting sheet (252) and matched with the limiting clamping sheet (153), wherein the limiting clamping block (253) is provided with an avoiding plane (2532) and a guiding arc-shaped surface (2531) which are intersected, and a clamping groove (2533) which is formed between the avoiding plane (2532) and the guiding arc-shaped surface (2531) and is in smooth transition connection with the avoiding plane (2532) and the guiding arc-shaped surface (2531).

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