CN216167798U

CN216167798U - Nail holding forceps for orthopedic surgery

Info

Publication number: CN216167798U
Application number: CN202122387513.0U
Authority: CN
Inventors: 陈继光; 黄利先; 王利元
Original assignee: Anyang Shengjie Technology Co ltd
Current assignee: Anyang Shengjie Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a nail holding forceps for orthopedic surgery, which comprises a left forceps arm and a right forceps arm, wherein the middle parts of the left forceps arm and the right forceps arm are hinged through a pin, the front ends of the left forceps arm and the right forceps arm are both bent upwards to form a holding part, and the holding parts and respective forceps arm bodies form an included angle of 120 degrees; the tail end of each bending part is a hollow semi-cylinder, a semi-annular groove is formed in the middle of the hollow semi-cylinder, when the left clamp arm and the right clamp arm are closed, the two hollow semi-cylinders form a complete hollow cylinder, and the two semi-annular grooves form a complete annular groove matched with a screw and a nut to be clamped. The nail holding forceps can conveniently and effectively clamp the screw, and is convenient for operation.

Description

Nail holding forceps for orthopedic surgery

Technical Field

The utility model particularly relates to a nail holding forceps for orthopedic surgery, and belongs to the technical field of medical instruments.

Background

The screw often need be used during fixing devices that reset such as fixed connection piece or fixed plate among orthopedic surgery, but to present cervical vertebra minimal access surgery, because the operation opening is very little, the screw volume that uses is also less, when using the screw to fix, the position and the direction of hardly set screw with the hand, thereby lead to the operation time extension, some supplementary nail-holding apparatus when the screw is screwed up in the rotation, the rotatory in-process leads to the not hard up skew direction of screw easily, the operation is wasted time and energy, greatly increased medical staff's the degree of difficulty of operation. Therefore, a nail holding instrument convenient for orthopedic surgery is needed.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a pair of nail holding forceps for orthopedic surgery, aiming at solving the problems that in the surgery, screws are not easy to clamp and the operation is inconvenient.

The technical scheme of the utility model is as follows: the screw holding forceps for the orthopedic surgery comprise a left forceps arm and a right forceps arm, wherein the middle parts of the left forceps arm and the right forceps arm are hinged through a pin, the front ends of the left forceps arm and the right forceps arm are bent upwards to form clamping parts, and the clamping parts and respective forceps arm bodies form an included angle of 120 degrees; the tail end of each bending part is a hollow semi-cylinder, a semi-annular groove is formed in the middle of the hollow semi-cylinder, when the left clamp arm and the right clamp arm are closed, the two hollow semi-cylinders form a complete hollow cylinder, and the two semi-annular grooves form a complete annular groove matched with a screw and a nut to be clamped.

Furthermore, the tail ends of the left clamp arm and the right clamp arm are respectively provided with a finger ring, the clamp arms close to the finger rings are respectively provided with a rack, and the tooth surfaces of the two racks are arranged oppositely.

Furthermore, a groove is formed in the middle of the right clamp arm, and the middle of the left clamp arm penetrates through the groove of the right clamp arm and is hinged through a pin.

Has the advantages that: according to the nail holding forceps, the left forceps arm, the right forceps arm and the finger rings at the tail ends of the left forceps arm and the right forceps arm are convenient for a doctor to operate, when the left forceps arm and the right forceps arm are folded, the two racks are mutually occluded and locked, the annular groove of the clamping part at the front end can be convenient for clamping a nut of a screw, the upper end and the lower end of the hollow cylinder respectively allow a screwdriver tool and a screw rod of the screw to freely pass through, the screw with a small size can be conveniently clamped, meanwhile, the clamping part at the front end and the forceps arms form an included angle of 120 degrees, the operation angle can be conveniently adjusted, the screwdriver can rotate more conveniently, and therefore the operation efficiency is improved.

Drawings

FIG. 1 is a top view of a staple holding pliers according to the present invention.

Fig. 2 is a side view of the screw-holding jaw in a screw-holding state.

Figure 3 is a top view of the left jawarm.

Figure 4 is a side view of the left jawarm.

Fig. 5 is a sectional view taken along line a-a of fig. 3.

Fig. 6 is a sectional view B-B of fig. 3.

Figure 7 is a side view of the right jawarm.

The labels in the figure are: 1 left clamp arm, 2 right clamp arm, 3 pins, 4 hollow cylinders, 5 annular grooves, 6 screws, 7 clamping parts, 11 finger rings, 12 racks, 13 left clamp arm hinged parts, 21 finger rings, 22 racks, 23 right clamp arm hinged parts and 61 screw caps.

Detailed Description

The utility model will be described more fully with reference to the accompanying drawings.

The main structure of the nail holding forceps for orthopedic surgery is shown in figure 1, and comprises a left forceps arm 1 and a right forceps arm 2, wherein the middle parts of the left forceps arm 1 and the right forceps arm 2 are hinged through a pin 3. The left forceps arm is structurally shown in fig. 3-4, and the part with the smaller middle thickness is a hinge part 13; the structure of the right clamp arm is as shown in fig. 7, a groove is arranged in the middle of the right clamp arm to form a right clamp arm hinge portion 23, and the middle of the left clamp arm penetrates through the groove of the right clamp arm and then is hinged through a pin, so that the left clamp arm and the right front arm are firmly and reliably hinged and flexibly rotated.

The tail ends of the left forceps arm and the right forceps arm are respectively provided with a finger ring 11 and a finger ring 21, and the finger rings can facilitate the insertion of fingers to control the opening and closing of the forceps arms. The clamp arms close to the finger ring are respectively provided with

racks

12 and 22, the rack structure is shown in figure 6, the tooth surfaces of the two racks are arranged oppositely, and when the left clamp arm and the right clamp arm are folded, the two racks can be mutually occluded and locked.

As shown in fig. 2, the front ends of the left and right forceps arms are bent upwards to form clamping portions 7, and the clamping portions and the respective forceps arm bodies form an included angle of 120 degrees; the tail end of each bending part is a hollow semi-cylinder, as shown in figure 3; a semi-annular groove is arranged in the middle of the hollow semi-cylinder, as shown in figure 5; when the left clamp arm and the right clamp arm are folded, the two hollow semi-cylinders form a complete hollow cylinder 4, and the two semi-annular grooves form a complete annular groove 5 matched with a screw and a nut to be clamped. The screw 6 to be clamped is schematically shown in fig. 2, and is provided with a nut 61 on top. By matching is meant that the diameter of the annular groove is slightly greater than the diameter of the nut and the height of the annular groove is slightly greater than the thickness of the nut so that the nut is free to rotate within the annular groove.

When the nail holding forceps are used, one hand of an operator is respectively inserted into the two finger rings by using a thumb and a forefinger, the two finger rings are separated, the two hollow semicylinders of the clamping part are also synchronously separated, at the moment, the other hand is used for holding the screw rod part of the screw to be clamped, and the screw cap is placed into one semicircular groove; the two finger rings are then closed so that the clamping portion clamps the screw, i.e. the nut is confined in the annular groove, as shown in fig. 2. After the left clamp arm and the right clamp arm are closed, the two racks are mutually occluded and locked, the annular groove of the front end clamping part can facilitate clamping a screw cap of a screw, the upper end and the lower end of the hollow cylinder respectively allow a screwdriver tool and a screw rod of the screw to freely pass through, the screw with a small size can be conveniently clamped, and due to the fact that the front end clamping part and the clamp arm form an included angle of 120 degrees, a doctor can conveniently adjust an operation angle, and then the screw cap is rotated by a screwdriver to screw the screw into the fixing body. After the screw is fastened, the two racks are separated by the force of fingers, so that the left forceps arm and the right front arm can be opened, the screw holding forceps are separated from the screw, and the operation is completed quickly.

Claims

1. The utility model provides an orthopedic surgery is with holding nail pincers, includes left tong arm and right tong arm, and the middle part of left tong arm and right tong arm is articulated through the pin, its characterized in that: the front ends of the left forceps arm and the right forceps arm are bent upwards to form clamping parts, and the clamping parts and the respective forceps arm bodies form an included angle of 120 degrees; the tail end of each bending part is a hollow semi-cylinder, a semi-annular groove is formed in the middle of the hollow semi-cylinder, when the left clamp arm and the right clamp arm are closed, the two hollow semi-cylinders form a complete hollow cylinder, and the two semi-annular grooves form a complete annular groove matched with a screw and a nut to be clamped.

2. The screw holding forceps for orthopedic surgery according to claim 1, characterized in that: the tail ends of the left clamp arm and the right clamp arm are respectively provided with a finger ring, the clamp arms close to the finger rings are respectively provided with a rack, and the tooth surfaces of the two racks are arranged oppositely.

3. The screw holding forceps for orthopedic surgery according to claim 1, characterized in that: the middle part of the right clamp arm is provided with a slot, and the middle part of the left clamp arm passes through the slot of the right clamp arm and is hinged through a pin.