CN212089707U

CN212089707U - Fracture reduction forceps for orthopedics and traumatology

Info

Publication number: CN212089707U
Application number: CN202020235806.XU
Authority: CN
Inventors: 杨国强; 范学慧
Original assignee: Affiliated Hospital of Traditional Chinese Medicine TCM of Southwest Medical University
Current assignee: Affiliated Hospital of Traditional Chinese Medicine TCM of Southwest Medical University
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-12-08
Anticipated expiration: 2030-03-02

Abstract

Fracture reduction forceps for orthopedics and traumatology have solved the problem that the use of reduction forceps can influence kirschner wire in present fracture operation. The clamp comprises an active clamp and a passive clamp which are hinged with each other, wherein the active clamp comprises an active clamp opening end and an active handle end; the passive clamp comprises a passive clamp jaw end and a passive handle end; a first connecting rod is hinged to the inner side of the driving handle end, a second connecting rod is hinged to the inner side of the driven handle end, and the inner end of the first connecting rod and the inner end of the second connecting rod are hinged to each other and are of a one-way rotating structure; the active jaw end and the passive jaw end are both provided with a slidable positioning and clamping device. The utility model discloses novel structure, think about ingenious, easy operation is convenient, completion fracture department that can be fine resets.

Description

Fracture reduction forceps for orthopedics and traumatology

Technical Field

The utility model belongs to the technical field of orthopedics treatment facility technique and specifically relates to a fracture pincers that reset for orthopedics department.

Background

Orthopedics, mainly orthopedic traumatic diseases such as acute and chronic contusions and wounds of bones, joints, ligaments, muscular nerves, limbs, and spinal columns.

Generally, reduction forceps are used for reducing a fractured bone after fracture, then the fractured bone is fixed through a steel plate, a screw and the like, and a kirschner wire is often used in the fracture surgery, but the operation of the common reduction forceps can influence the positioning of the kirschner wire, and the kirschner wire needs to be fixed again, so that the pain of a patient is increased, and the surgery time is prolonged.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an orthopedics is with pincers that reset of fracture, the effectual problem of using the pincers that reset to influence ke shi needle in having solved present fracture operation.

In order to solve the problems, the utility model comprises an active clamp and a passive clamp which are hinged with each other, wherein the active clamp comprises an active clamp opening end and an active handle end;

the passive clamp comprises a passive clamp jaw end and a passive handle end;

a first connecting rod is hinged to the inner side of the driving handle end, a second connecting rod is hinged to the inner side of the driven handle end, and the inner end of the first connecting rod and the inner end of the second connecting rod are hinged to each other and are of a one-way rotating structure;

the active jaw end and the passive jaw end are both provided with a slidable positioning and clamping device.

Preferably, the positioning and clamping device comprises an arc-shaped sliding block;

the active jaw end and the passive jaw end are both provided with a sliding chute, the sliding block is slidably positioned in the sliding chute, the lower end of the sliding chute is provided with a limiting groove, a limiting block is slidably arranged in the limiting groove, and the upper end of the limiting block penetrates through the limiting groove and is fixedly connected with the sliding block;

and a clamping block which slides towards the inner side of the active jaw end along the sliding block is arranged on the inner side of the sliding block.

Preferably, the rotatable threaded rod that is connected with of centre gripping piece inner end, the sliding block outside is just arranged in with sliding block threaded connection in the threaded rod outer end, and the inside fixedly connected with guide bar of centre gripping piece, the sliding block is arranged in to guide bar outer end slidable.

Preferably, the threaded rod and the clamping block are provided with through holes, and the kirschner wire is implanted into the body of the patient through the through holes.

Preferably, the driving jaw end and the driven jaw end are both provided with sliding grooves, studs can slide in the sliding grooves, the lower ends of the studs penetrate through the sliding grooves and are fixedly connected with the sliding blocks, the upper ends of the studs are in threaded connection with nuts, and the nuts are in contact with the driving jaw end and the driven jaw end to form a structure for fixing the sliding blocks.

Preferably, the unidirectional rotation structure comprises a ratchet wheel fixedly connected with the first connecting rod, a pawl is fixedly hinged to the second connecting rod, a tension spring is fixedly connected to the inner end of the pawl, and the inner end of the tension spring is fixedly connected with the second connecting rod.

The utility model discloses novel structure, think about ingenious, easy operation is convenient, completion fracture department that can be fine resets.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

Fig. 2 is a schematic diagram of the side-axis structure of the present invention.

Fig. 3 is a schematic structural view of the passive clamp of the present invention.

Fig. 4 is a schematic diagram of the structure of the active clamp of the present invention.

Fig. 5 is a schematic structural view of the positioning and clamping device of the present invention.

Fig. 6 is a schematic view of the local splitting and back-frying structure of the positioning and clamping device of the present invention.

Fig. 7 is an enlarged schematic view of a portion a in fig. 1.

Detailed Description

The following describes the present invention in further detail with reference to fig. 1-7.

As shown in fig. 1-7, the utility model comprises an active clamp 1 and a passive clamp 2 which are hinged with each other, wherein the active clamp 1 comprises an active jaw end 3 and an active handle end 4;

the passive clamp 2 comprises a passive jaw end 5 and a passive handle end 6;

the structure of the active clamp is that a passive clamp 2 is shown in fig. 3, an active clamp 1 is shown in fig. 4, and the active clamp 1 and the passive clamp 2 are in a mutual hinged relationship;

the clamping effect is realized by operating the driving handle end 4;

a first connecting rod 7 is hinged to the inner side of the driving handle end 4, a second connecting rod 8 is hinged to the inner side of the driven handle end 6, and the inner end of the first connecting rod 7 and the inner end of the second connecting rod 8 are hinged to each other and are of a one-way rotating structure;

in clinical use, the driving handle end 4 and the driven handle end 6 are separated from each other, so that the driving jaw end 3 and the driven jaw end 5 are close to each other, the inner end of the first connecting rod 7 is in one-way rotation connection with the inner end of the second connecting rod 8, the driving handle end 4 and the driven handle end 6 cannot be actively close to each other again, namely the driving jaw end 3 and the driven jaw end 5 cannot return, and one hand of a medical worker can be released;

the active jaw end 3 and the passive jaw end 5 are both provided with a slidable positioning and clamping device 9;

the positioning and clamping devices 9 are two in total, the first device can play a positioning effect on the kirschner wire, and the second device can also be used for clamping bones.

The positioning and clamping device 9 comprises an arc-shaped sliding block 10;

the driving jaw end 3 and the driven jaw end 5 are both provided with sliding grooves, the sliding block 10 is slidably positioned in the sliding grooves, the lower ends of the sliding grooves are provided with limiting grooves, limiting blocks are slidably arranged in the limiting grooves, and the upper ends of the limiting blocks penetrate through the limiting grooves and are fixedly connected with the sliding block 10;

and a clamping block 11 sliding towards the inner side of the active jaw end 3 along the sliding block 10 is arranged on the inner side of the sliding block 10.

Location clamping device 9's structure is as shown in fig. 5 and fig. 6, sliding block 10 can slide along the spout, under the effect of spacing groove and stopper, it can only slide according to fixed track to have guaranteed sliding block 10, at clinical practical application's in-process, slide sliding block 10 to suitable position after, accomplish sliding block 10's fixed, then make clamping block 11 slide, the completion is fixed to the centre gripping of bone, can increase the clamping-force to the bone to a clamping block 11, conveniently make the bone reset, if need adopt the steel sheet to fix when simultaneously, after resetting the bone, make clamping block 11 outside side-to-side shift, put into the steel sheet can, thereby make initiative jaw end 3 and passive jaw end 5 can not exert an influence to the steel sheet.

Rotatable threaded rod 12 that is connected with in grip block 11 the inner, the sliding block 10 outside is just arranged in to threaded rod 12 outer end and sliding block 10 threaded connection, grip block 11 the inner fixedly connected with guide bar 13, and sliding block 10 is arranged in to guide bar 13 outer end slidable.

As shown in fig. 5 and 6, the guide rod 13 plays a guiding role, so that the rotation of the threaded rod 12 can drive the clamping block 11 to slide, and an operation handle is arranged at the outer end of the threaded rod 12, thereby facilitating the operation.

The threaded rod 12 and the clamping block 11 are provided with through holes, and the Kirschner wire is implanted into the body of a patient through the through holes.

As shown in fig. 6, the threaded rod 12 and the clamping block 11 are provided with through holes through which the k-wire can be passed, thereby facilitating the positioning and implantation of the k-wire.

The driving jaw end 3 and the driven jaw end 5 are both provided with sliding grooves, studs 14 are slidably arranged in the sliding grooves, the lower ends of the studs 14 penetrate through the sliding grooves and are fixedly connected with the sliding blocks 10, the upper ends of the studs 14 are in threaded connection with nuts, and the nuts are in contact with the driving jaw end 3 and the driven jaw end 5 to form a structure for fixing the sliding blocks 10.

The position of the sliding block 10 is fixed by screwing the nuts into contact with the ends of the active tong 1 and the passive tong 2, thereby generating a friction force.

The unidirectional rotation structure comprises a ratchet wheel 15 fixedly connected with the first connecting rod 7, a pawl 16 is fixedly hinged on the second connecting rod 8, a tension spring is fixedly connected to the inner end of the pawl 16, and the inner end of the tension spring is fixedly connected with the second connecting rod 8.

The structure of the ratchet wheel 15 and the pawl 16 is now a particularly well-established structure, and will not be described in detail herein, and it is sufficient that the pawl 16 is no longer engaged with the ratchet wheel 15 when it is required to rotate in the reverse direction.

The reduction forceps have multiple functions, when the kirschner wire is used, the position of the sliding block 10 is adjusted, then the active jaw end 3 and the passive jaw end 5 are close to each other to clamp the fracture, the position of the clamping block 11 is adjusted, the contact surface is enlarged, the clamping effect is increased, and then the kirschner wire is inserted into the through hole;

when using the steel sheet to fix, preceding operating procedure is the same, after reseing and accomplishing, moves grip block 11 to the outside, and the head of initiative jaw end 3 and passive jaw end 5 plays main clamping action this moment, then with the steel sheet put into can, avoided the steel sheet and the interference between initiative pincers 1 and the passive pincers 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The fracture reduction forceps for the orthopedics department comprises an active forceps (1) and a passive forceps (2) which are hinged with each other, and is characterized in that the active forceps (1) comprise an active jaw end (3) and an active handle end (4);

the passive clamp (2) comprises a passive clamp jaw end (5) and a passive handle end (6);

a first connecting rod (7) is hinged to the inner side of the driving handle end (4), a second connecting rod (8) is hinged to the inner side of the driven handle end (6), and the inner end of the first connecting rod (7) and the inner end of the second connecting rod (8) are hinged to each other and are of a one-way rotating structure;

the active jaw end (3) and the passive jaw end (5) are both provided with a slidable positioning and clamping device (9).

2. The orthopaedic reduction forceps according to claim 1, characterized in that said positioning and clamping means (9) comprise an arc-shaped sliding block (10);

the active jaw end (3) and the passive jaw end (5) are both provided with sliding grooves, the sliding block (10) is slidably positioned in the sliding grooves, the lower ends of the sliding grooves are provided with limiting grooves, limiting blocks are slidably arranged in the limiting grooves, and the upper ends of the limiting blocks penetrate through the limiting grooves and are fixedly connected with the sliding block (10);

and a clamping block (11) which slides towards the inner side of the active jaw end (3) along the sliding block (10) is arranged on the inner side of the sliding block (10).

3. The bone fracture reduction forceps for orthopedics and traumatology according to claim 2, characterized in that, the rotatable threaded rod (12) that is connected with in the grip block (11), threaded rod (12) outer end and sliding block (10) threaded connection and place in the sliding block (10) outside, grip block (11) inner end fixedly connected with guide bar (13), guide bar (13) outer end slidable places in sliding block (10).

4. The bone fracture reduction forceps for orthopedics and traumatology according to claim 3, characterized in that the threaded rod (12) and the clamping block (11) are provided with a through hole through which the kirschner wire is implanted into the patient.

5. The bone fracture reduction forceps for orthopedics and traumatology according to claim 1, characterized in that the active jaw end (3) and the passive jaw end (5) are respectively provided with a sliding groove, a stud (14) is slidably arranged in the sliding groove, the lower end of the stud (14) penetrates through the sliding groove and is fixedly connected with the sliding block (10), the upper end of the stud (14) is in threaded connection with a nut, and the nut is in contact with the active jaw end (3) and the passive jaw end (5) to form a structure for fixing the sliding block (10).

6. The bone fracture reduction forceps for the orthopedics department according to claim 1 is characterized in that the one-way rotating structure comprises a ratchet wheel (15) fixedly connected with the first connecting rod (7), a pawl (16) is fixedly hinged on the second connecting rod (8), the inner end of the pawl (16) is fixedly connected with a tension spring, and the inner end of the tension spring is fixedly connected with the second connecting rod (8).