CN216652433U - Surgical forceps for fracture reduction - Google Patents

Abstract

The utility model relates to an operation forceps for fracture reduction, which comprises a first forceps arm and a second forceps arm which are mutually hinged, wherein a first forceps head and a first finger ring are respectively arranged at two ends of the first forceps arm, a second forceps head and a second finger ring are respectively arranged at two ends of the second forceps arm, the first forceps head and the second forceps head are correspondingly meshed, a first pull ring is arranged at the first forceps head, a second pull ring is arranged at the second forceps head, and locking devices are connected to the first forceps arm and the second forceps arm. Two vertical steel needles are respectively driven into the joint of the two sections of broken bones, the first pull ring and the second pull ring are respectively sleeved into the corresponding two steel needles, and the sections of the two sections of broken bones are drawn to be continuously close until a preset position or the close position of the sections of the two sections of broken bones is reached; the axial force is stable, the butt joint position is accurately controlled, and the use is quick and convenient; the pull ring inner wall evenly is equipped with vertical tooth groove line, and frictional force increases, guarantees that the steel nail drives pull ring simultaneous movement. The locking device keeps the same locking force for a long time, the clamping is accurate and stable, the displacement is not easy, and the success rate of the operation is greatly improved.

Description

Surgical forceps for fracture reduction

Technical Field

The utility model relates to the technical field of orthopedic surgical instruments, in particular to an operating forceps for fracture reduction.

Background

Fractures are generally classified into closed fractures and open fractures. No skin or mucosa rupture exists at the fracture part, and the fracture end is not communicated with the outside world and is called closed fracture. The fracture is open fracture when the skin or mucosa is broken and the fracture is communicated with the outside; the fracture end has transverse fracture, oblique fracture or comminuted fracture.

When the orthopedic forceps are used, no matter transverse fracture, oblique fracture or comminuted fracture, steel nails are inserted into the positions near the two separated bone fracture positions during bone setting, the bones are pulled to move oppositely until the preset fixed positions are reached, and then the bone fractures at the two ends are completely fixed. However, when the common forceps are manually pulled or used in the operation process, the clamping force is insufficient, the forceps slip in the clamping process, and when the broken bones at the two ends reach fixed positions, the position is difficult to keep still and is easy to shift, so that the operation fails.

Therefore, there is a need for developing a forceps for fracture reduction that can simultaneously move two fractured bones toward each other by pulling a steel nail nailed on the two fractured bones and effectively control and maintain the distance between the two bone sections, based on the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pair of surgical forceps for fracture reduction, which aims to solve the problems in the background technology, and the surgical forceps for fracture reduction is used for bone surgery integrating two sections of fractured bones of fractured fractures and has the advantages of simple and reasonable structure, rapidness and convenience in use, accuracy and stability in clamping, difficulty in displacement and great improvement of the success rate of the surgery.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an operation pincers for fracture reduction, including first tong arm and the second tong arm of mutual articulated, first tong arm both ends are first binding clip and first ring respectively, second tong arm both ends are second binding clip and second ring respectively, first binding clip and second binding clip correspond the meshing setting, first binding clip department is equipped with first pull ring, second binding clip department is equipped with the second pull ring, first pull ring and second pull ring move in opposite directions, quick accurate will embolia the steel nail of fixing respectively at two sections broken bones, reach preset position. And locking devices are connected between the hinge points and the finger rings on the first clamp arm and the second clamp arm. The fixture is thoroughly fixed, stable in clamping force and accurate in positioning.

Preferably, the front end regions of the first tong head and the second tong head are bent upwards and tilted based on a horizontal plane, tooth sockets are arranged on the inner sides of the first tong head and the second tong head, the first tong head and the second tong head are engaged to form a symmetrical curved surface with a blunt head tilted, and the annular surfaces of the first pull ring and the second pull ring and the symmetrical curved surface with the blunt head tilted are located on the same plane. The bending and tilting are beneficial to the use, convenient use and operation of a doctor in the operation process.

More preferably, the front end regions of the first and second bits are gradually reduced in width in the tilting direction. The front end regions of the first forceps head and the second forceps head are more attached to the surface of a fractured bone, so that the butting directions of the sections of two bones are consistent, and the axial positioning is accurate.

More preferably, the clamping thickness of the first tong head and the clamping thickness of the second tong head are both gradually reduced along the tilting direction. The first tong head and the second tong head are combined and then are attached, the first pull ring and the second pull ring drive the fracture section of the fractured bone to be in close contact, and the distance between the two fractured bones is accurately positioned.

More preferably, the first pull ring and the outer side wall of the first tong head form a full-circle closed ring, the second pull ring and the outer side wall of the second tong head form a full-circle closed ring, the full-circle closed ring is good in stress, and labor is saved in use. The inner wall of the closed ring is uniformly provided with vertical tooth groove lines. The tooth socket lines increase the friction force during clamping, so that the clamping process is prevented from slipping, and the clamping is tight.

More preferably, the first pull ring is arranged at the end part of the first tong head, the second pull ring is arranged at the end part of the second tong head, the first pull ring and the second pull ring are mutually symmetrical semi-circular rings, the two semi-circular rings are combined to form a whole ring, and the inner wall of each semi-circular ring is uniformly provided with vertical tooth grooves. The semicircular rings have small gaps when combined, and are suitable for the operation of seamless bone setting, and the butt joint of the fracture sections is more fit.

More preferably, locking device includes matched with locking bolt and lock nut, and the locking bolt includes universal swivel ball and screw rod, is equipped with spherical chamber on the first tong arm, and universal swivel ball is wrapped up by spherical chamber and is formed universal rotary connection subassembly, is equipped with the screw hole on the second tong arm, and the screw rod of locking bolt passes behind the screw hole and cooperates with lock nut. The locking bolt and the locking nut are matched to generate self-tightening force, so that the locking is reliable and the operation is easy.

More preferably, locking device is including upper and lower complex auto-lock gleitbretter and spacing piece, and it is inboard that first tong arm is located to the auto-lock gleitbretter, and it is inboard that second tong arm is located to spacing piece, and the face of auto-lock gleitbretter and the parallel relative setting of face of spacing piece are equipped with the sawtooth on the face that auto-lock gleitbretter and spacing piece are relative respectively, and the sawtooth on the auto-lock gleitbretter meshes with the sawtooth on the spacing piece mutually. The self-tightening positioning is convenient, the positioning is timely carried out after the position is accurately found, the coordination of a plurality of people is not needed, the labor and the time are saved, and the operation efficiency is improved.

Before the centre gripping bone, doctor's thumb and forefinger embolia the ring respectively, unscrew lock nut to keeping away from universal swivel ball direction, and thumb and forefinger are outwards hard simultaneously, and according to lever principle, the separation motion is done to first pull ring and second pull ring, and first pull ring and second pull ring are respectively looked for two sections disconnected bones, embolias corresponding steel needle, all pastes tight disconnected bone surface up to first pull ring and second pull ring bottom surface. The thumb and the forefinger exert force inwards at the same time, the first finger ring and the second finger ring move oppositely to gradually reduce the distance, and the two sections of broken bone sections are drawn to be continuously close until a preset position is reached or the two sections of broken bone sections are tightly attached to the positions; and continuously screwing the locking nut until the locking nut is fixed and self-locked.

The self-locking sliding sheet and the limiting sheet can be pulled open, the first pull ring and the second pull ring are separated, the first pull ring and the second pull ring respectively aim at two sections of broken bones and are sleeved with corresponding steel needles until the bottom surfaces of the first pull ring and the second pull ring are tightly attached to the outer surfaces of the broken bones. The thumb and the index finger exert force inwards at the same time, the first finger ring and the second finger ring move oppositely to gradually reduce the distance, and the two sections of broken bone sections are drawn to be continuously close until a preset position or the close position of the two sections of broken bone sections is reached; after the hand is loosened, the sawteeth on the self-locking sliding sheet are meshed with the sawteeth on the limiting sheet to complete the fixed locking state.

After the locking force is kept, the medical staff loosens hands and tightly attaches the outer surface fixing steel plate along the length direction of the two sections of overlapped bones. After the whole treatment process is finished, the locking nut is slowly unscrewed, or the limiting sheet is pushed forwards, after the meshed sawteeth are separated, the self-locking slip sheet and the limiting sheet move in a relative separation mode, and the first pull ring and the second pull ring are separated from the steel needle respectively.

Compared with the prior art, the utility model has the beneficial effects that: the first clamp arm and the second clamp arm are respectively provided with a first pull ring and a second pull ring, two vertical steel needles are respectively driven into the joint of the two sections of broken bones, the first pull ring and the second pull ring are respectively sleeved into the corresponding two steel needles, and the two sections of broken bone sections are pulled to be continuously close until a preset position or a position where the two sections of broken bone sections are tightly attached is reached; the axial force is stable, the butt joint position is accurately controlled, and the use is quick and convenient; first pull ring and second pull ring inner wall evenly are equipped with vertical tooth groove line, and frictional force increases, guarantees that the steel nail drives pull ring simultaneous movement. The locking device keeps the same locking force for a long time, the clamping is accurate and stable, the displacement is not easy, and the success rate of the operation is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a first tab and a first locking mechanism of the present invention;

FIG. 3 is a schematic view of a second tab and first locking mechanism of the present invention in combination;

FIG. 4 is a schematic view of a first tab and a second locking mechanism of the present invention;

figure 5 is a schematic view of a second tab and second locking arrangement of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an operating forceps for fracture reduction includes a first forceps arm 1 and a second forceps arm 2 hinged to each other, a first forceps head 102 and a first finger ring 101 are respectively disposed at two ends of the first forceps arm 1, a second forceps head 202 and a second finger ring 201 are respectively disposed at two ends of the second forceps arm 2, anti-slip lines are disposed on inner rings of the first finger ring 101 and the second finger ring 201, and a doctor extends fingers into the first finger ring 101 and the second finger ring 201. The first binding clip 102 and the second binding clip 202 are correspondingly meshed and arranged, a first pull ring 121 is arranged at the first binding clip 102, a second pull ring 221 is arranged at the second binding clip 202, the first pull ring 121 and the second pull ring 221 are separated according to the lever principle, two vertical steel needles are respectively driven into the joint of two sections of broken bones, the corresponding steel needles on the two sections of broken bones are respectively found by the first pull ring 121 and the second pull ring 221 until the bottom surfaces of the first pull ring 121 and the second pull ring 221 are tightly attached to the outer surfaces of the broken bones. The first finger ring 101 and the second finger ring 201 move towards each other, the distance is gradually reduced, and the two sections of broken bone sections are drawn to be continuously close until a preset position or the close position of the two sections of broken bone sections is reached. And locking devices 3 are connected to the first clamp arm 1 and the second clamp arm 2 between the hinge point and the finger ring. And locked and positioned by the locking device 3.

The front end regions of the first tong head 102 and the second tong head 202 are bent and tilted upwards based on a horizontal plane, tooth sockets are arranged on the inner sides of the first tong head 102 and the second tong head 202, the first tong head 102 and the second tong head 202 are engaged to form a symmetrical curved surface with a blunt tip tilted, and the width of the front end regions of the first tong head 102 and the second tong head 202 is gradually reduced along the tilting direction. The clamping thickness of the first tong head 102 and the clamping thickness of the second tong head 202 are gradually reduced along the tilting direction.

The ring surfaces of the first pull ring 121 and the second pull ring 221 and the symmetrical curved surface of the blunt tip tilting are located on the same plane. The bottom surfaces of the first pull ring 121 and the second pull ring 221 are respectively clung to the surfaces of the two broken bones, and the two broken bones are uniformly stressed in the axial direction to finish coaxial butt joint.

The first embodiment:

referring to fig. 2, the first pull ring 121 and the outer side wall of the first binding clip 102 form a complete closed loop, the second pull ring 221 and the outer side wall of the second binding clip 202 form a complete closed loop, and the inner wall of the closed loop is uniformly provided with vertical tooth grooves 4. When the first pull ring 121 and the second pull ring 221 pass through the steel nail until the first pull ring and the second pull ring are contacted with the outer surface of the bone, the vertical tooth groove grooves on the inner wall of the closed ring are rubbed with the surface of the steel nail, and the closed ring is static relative to the steel nail. When the first pull ring 121 and the second pull ring 221 move relatively, the corresponding steel nails are driven to move synchronously, and the two broken bones move oppositely and are locked and positioned at the preset butt joint position through the locking device 3.

Locking device 3 includes matched with locking bolt 302 and lock nut 301, and locking bolt 302 includes universal swivel ball and screw rod, is equipped with spherical chamber on the first tong arm 1, and universal swivel ball is wrapped up by spherical chamber and is formed universal swivelling joint subassembly 303, is equipped with the screw hole on the second tong arm 2, and the screw rod of locking bolt 302 passes behind the screw hole and cooperates with lock nut 301.

Before the bone is clamped, the locking nut 301 is unscrewed in the direction away from the universal rotating ball, the first pull ring 121 and the second pull ring 221 move separately, two vertical steel needles are respectively driven into the joint of the two broken bones until the first pull ring 121 and the second pull ring 221 are respectively sleeved with the steel needles, the thumb and the forefinger exert force inwards at the same time, the two broken bones move oppositely until a preset position through the lever principle, and the locking nut 301 is continuously screwed until the locking nut is fixed and self-locked. And then, after the two sections of bones are lapped, the steel plate is tightly adhered to the outer surface along the length direction of the bones to be fixed. After the whole treatment process is completed, the lock nut 301 is slowly unscrewed, and the first pull ring 121 and the second pull ring 221 are separated from the steel needle respectively.

Second embodiment:

referring to fig. 2, the first pull ring is disposed at an end of the first binding clip 102, the second pull ring is disposed at an end of the second binding clip 202, the first pull ring and the second pull ring penetrate through the steel nail until contacting with an outer surface of the bone, the first pull ring and the second pull ring are symmetric semi-circular rings, the two semi-circular rings are combined to form a whole ring, and vertical tooth grooves are uniformly formed in an inner wall of the semi-circular ring. The vertical tooth groove lines on the inner wall of the semicircular ring rub with the surface of the steel nail, and the closed ring is static relative to the steel nail. When the first pull ring and the second pull ring move relatively, the corresponding steel nails are driven to move synchronously, and the two broken bones move oppositely and are locked and positioned at the preset butt joint position through the locking device 3.

Locking device 3 includes matched with locking bolt 302 and lock nut 301, and locking bolt 302 includes universal swivel ball and screw rod, is equipped with spherical chamber on the first tong arm 1, and universal swivel ball is wrapped up by spherical chamber and is formed universal swivelling joint subassembly 303, is equipped with the screw hole on the second tong arm 2, and the screw rod of locking bolt 302 passes behind the screw hole and cooperates with lock nut 301.

Before clamping a bone, unscrewing a locking nut 301 in a direction away from a universal rotating ball, separating a first pull ring and a second pull ring, and driving two vertical steel needles into the joint of two sections of broken bones; until the first pull ring and the second pull ring are respectively sleeved and matched with the steel needle, the thumb and the forefinger exert force inwards at the same time, two sections of broken bones move oppositely to a preset position through the lever principle, and the locking nut 301 is continuously screwed until the locking nut is fixed and self-locked. And then, after the two sections of bones are lapped, the steel plate is tightly adhered to the outer surface along the length direction of the bones to be fixed. After the whole treatment process is completed, the locking nut 301 is slowly unscrewed, and the first pull ring and the second pull ring are separated from the steel needle respectively.

The third embodiment:

referring to fig. 3, the first pull ring 121 and the outer side wall of the first binding clip 102 form a complete closed loop, the second pull ring 221 and the outer side wall of the second binding clip 202 form a complete closed loop, and the inner wall of the closed loop is uniformly provided with vertical tooth grooves 4. When the first pull ring 121 and the second pull ring 221 pass through the steel nail until the first pull ring and the second pull ring are contacted with the outer surface of the bone, the vertical tooth groove grooves on the inner wall of the closed ring are rubbed with the surface of the steel nail, and the closed ring is static relative to the steel nail. When the first pull ring 121 and the second pull ring 221 move relatively, the corresponding steel nails are driven to move synchronously, and the two broken bones move oppositely and are locked and positioned at the preset butt joint position through the locking device 3.

Locking device 3 includes upper and lower complex auto-lock gleitbretter 304 and spacing piece 305, and first tong arm is inboard located to auto-lock gleitbretter 304, and second tong arm is inboard located to spacing piece 305, and the face parallel of auto-lock gleitbretter 304 and the face parallel of spacing piece 305 sets up relatively, is equipped with the sawtooth on the relative face of auto-lock gleitbretter 304 and spacing piece 305 respectively, and the sawtooth on the auto-lock gleitbretter 304 meshes with the sawtooth on the spacing piece 305 mutually.

Before the centre gripping bone, pull open auto-lock gleitbretter 304 and spacing piece 305, first pull ring 121 and second pull ring 221 keep away from the motion, after first pull ring 121 and second pull ring 221 emboliaed the cooperation with the steel needle respectively, thumb and forefinger are inwards hard simultaneously, through lever principle, two sections broken bones move in opposite directions until preset position, sawtooth on auto-lock gleitbretter 304 and the sawtooth on spacing piece 305 mesh mutually after the loose hand, accomplish fixed locking state, later paste the tight surface at bone length direction and put into the steel sheet, lap two sections bones and fix. After the whole treatment is finished, the limiting sheet is pushed forwards, after the meshed sawteeth are separated, the self-locking sliding sheet 304 and the limiting sheet 305 move relatively and separately, and the first pull ring 121 and the second pull ring 221 are separated from the steel needle respectively.

The fourth embodiment:

referring to fig. 4, the pliers further comprise a first pull ring arranged at an end of the first pliers head 102, a second pull ring arranged at an end of the second pliers head 202, the first pull ring and the second pull ring penetrate through the steel nail until the first pull ring and the second pull ring contact with the outer surface of the bone, the first pull ring and the second pull ring are both symmetrical semicircular rings, the two semicircular rings are combined to form a whole ring, and vertical tooth grooves are uniformly formed in the inner wall of each semicircular ring. The vertical tooth groove lines on the inner wall of the semicircular ring rub with the surface of the steel nail, and the closed ring is static relative to the steel nail. When the first pull ring and the second pull ring move relatively, the corresponding steel nails are driven to move synchronously, and the two broken bones move oppositely and are locked and positioned at the preset butt joint position through the locking device 3.

Locking device 3 includes upper and lower complex auto-lock gleitbretter 304 and spacing piece 305, and first tong arm is inboard located to auto-lock gleitbretter 304, and second tong arm is inboard located to spacing piece 305, and the face parallel of auto-lock gleitbretter 304 and the face parallel of spacing piece 305 sets up relatively, is equipped with the sawtooth on the relative face of auto-lock gleitbretter 304 and spacing piece 305 respectively, and the sawtooth on the auto-lock gleitbretter 304 meshes with the sawtooth on the spacing piece 305 mutually.

Before the centre gripping bone, pull open auto-lock gleitbretter 304 and spacing piece 305, first pull ring and second pull ring keep away from the motion, after first pull ring and second pull ring emboliaed the cooperation with the steel needle respectively, thumb and forefinger are inwards hard simultaneously, through lever principle, two sections broken bones move in opposite directions until preset position, sawtooth on auto-lock gleitbretter 304 meshes with the sawtooth on the spacing piece 305 mutually after the pine hand, accomplish fixed locking state, later paste the surface at bone length direction and put into the steel sheet, get up two sections bone overlap joints and fix. After the whole treatment is finished, the limiting sheet is pushed forwards, after the meshed sawteeth are separated, the self-locking sliding sheet 304 and the limiting sheet 305 move in a relative separation mode, and the first pull ring and the second pull ring are separated from the steel needle respectively.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A surgical clamp for reducing a fracture, characterized in that: including first tong arm (1) and second tong arm (2) of mutual articulated, first tong arm (1) both ends are first binding clip (102) and first ring (101) respectively, and second tong arm (2) both ends are second binding clip (202) and second ring (201) respectively, and first binding clip (102) and second binding clip (202) correspond the meshing setting, and first binding clip (102) department is equipped with first pull ring (121), and second binding clip (202) department is equipped with second pull ring (221), on first tong arm (1) and second tong arm (2) in the pin joint with between the ring part be connected with locking device (3).

2. A forceps for fracture reduction as claimed in claim 1, in which: the front end regions of the first tong head (102) and the second tong head (202) are bent and tilted upwards based on a horizontal plane, tooth sockets are arranged on the inner sides of the first tong head (102) and the second tong head (202), the first tong head (102) and the second tong head (202) are engaged to form a blunt tilted symmetrical curved surface, and the annular surfaces of the first pull ring (121) and the second pull ring (221) and the blunt tilted symmetrical curved surface are located on the same plane.

3. A forceps for fracture reduction as claimed in claim 2, in which: the front end regions of the first forceps head (102) and the second forceps head (202) are gradually reduced in width along the tilting direction.

4. A forceps for fracture reduction as claimed in claim 2, in which: the clamping thicknesses of the first clamp head (102) and the second clamp head (202) are gradually reduced along the tilting direction.

5. A forceps for fracture reduction as claimed in claim 2, in which: the first pull ring (121) and the outer side wall of the first tong head (102) form a whole-circle closed ring, the second pull ring (221) and the outer side wall of the second tong head (202) form a whole-circle closed ring, and the inner wall of the closed ring is uniformly provided with vertical tooth grooves (4).

6. A forceps for fracture reduction as claimed in claim 2, in which: the first pull ring is arranged at the end part of the first tong head (102), the second pull ring is arranged at the end part of the second tong head (202), the first pull ring and the second pull ring are semi-circular rings which are symmetrical to each other, the two semi-circular rings are combined to form a whole ring, and vertical tooth groove lines are uniformly arranged on the inner wall of each semi-circular ring.

7. A forceps for fracture reduction as claimed in claim 1, in which: locking device (3) are including matched with locking bolt (302) and lock nut (301), and locking bolt (302) are equipped with spherical chamber including universal swivel ball and screw rod on first tong arm (1), and universal swivel ball is wrapped up by spherical chamber and is formed universal swivelling joint subassembly (303), is equipped with the screw hole on second tong arm (2), and the screw rod of locking bolt (302) passes behind the screw hole and cooperates with lock nut (301).

8. A forceps for fracture reduction as claimed in claim 1, in which: locking device (3) are including upper and lower complex auto-lock gleitbretter (304) and spacing piece (305), first tong arm (1) is inboard located in auto-lock gleitbretter (304), second tong arm (2) are inboard located in spacing piece (305), the face parallel of face and spacing piece (305) of auto-lock gleitbretter (304) sets up relatively, be equipped with the sawtooth on the face that auto-lock gleitbretter (304) and spacing piece (305) are relative respectively, the sawtooth on auto-lock gleitbretter (304) meshes with the sawtooth on spacing piece (305) mutually.

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