CN215458565U

CN215458565U - Percutaneous tibial bone fracture reduction fixing forceps

Info

Publication number: CN215458565U
Application number: CN202121741972.8U
Authority: CN
Inventors: 何迅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-01-11
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses a percutaneous tibial bone fracture reduction fixing clamp, which belongs to the technical field of orthopedic instruments and comprises a first clamp body, a second clamp body, a rotary connecting piece, a push rod, a pressurizing top and the like; when the fixing clamp is used in the operation process, the small wound can clamp and fix the broken end of the tibia fracture, so that the wound of a patient is obviously reduced; the fracture reduction wound of the tibia can be prevented from increasing, the influence on the bone blood circulation of the forceps holder part is very small, and the healing of a patient is facilitated; obviously reduces the operation time, is beneficial to the operation of surgeons, and can be used for restoring the tibia before being implanted by matching with various tibia internal fixing devices.

Description

Percutaneous tibial bone fracture reduction fixing forceps

Technical Field

The utility model relates to the technical field of orthopedic instruments, in particular to a pair of percutaneous tibia dry fracture reduction fixing forceps.

Background

The tibia is a main load bearing bone for supporting the calf of a human body, and open or closed fracture of the tibial shaft is a common orthopedic disease and is divided into proximal fracture of the tibia, middle fracture of the tibia and distal fracture of the tibia according to anatomical characteristics.

The open or closed tibial bone fracture treatment principle is simple fracture anatomical reduction and strong fixation; comminuted fracture restoring line. Accurate anatomical reduction is the premise of good healing of the fractured ends of the patient.

The method has different choices according to different fracture parts and fracture types of the tibia, and includes intramedullary nail fixation, extramedullary steel plate fixation and skin external fixation frame fixation.

The reduction mode can select to cut skin, fascia and periosteum to expose the broken ends of the fracture, and the reduction is fixed by the forceps jaws of the reduction forceps; the simple fracture can be reduced in a closed manner, and the reduction is adjusted through the perspective of the C-shaped arm by the traction of the far end of the affected limb.

The current resetting mode mainly has the following defects:

cutting and resetting: cutting the tissues around the broken end of the fracture to expose the broken end of the fracture, and then resetting and fixing the broken end of the fracture through a resetting clamp and implanting the broken end of the fracture for internal fixation; skin, subcutaneous tissues and periosteum around the cut fracture end have certain damage to blood circulation around the fracture end, the blood circulation of the fracture end is poor after operation, fracture nonunion is easily caused, and particularly, soft tissue coverage is less at the position 1/3 of the tibia far end, and fracture nonunion is easily caused after the blood circulation is damaged;

and the operator needs to reset under the perspective of the C-arm and be exposed to X-ray when the operator needs to close, pull and reset, and the possibility of re-displacement is particularly high after the operator resets.

Disclosure of Invention

The utility model aims to provide a percutaneous tibial bone fracture reduction fixing clamp to solve the problems.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a percutaneous tibia dry fracture reduction fixing clamp comprises a first clamp body, a second clamp body and a rotary connecting piece, wherein the first clamp body and the second clamp body are in cross connection through the rotary connecting piece; the first clamp body sequentially comprises a first clamping part, a first rotating connecting piece connecting part and a first handle part, the second clamp body sequentially comprises a second clamping part, a second rotating connecting piece connecting part and a second handle part, the first rotating connecting piece connecting part and the second rotating connecting piece connecting part are detachably connected through the rotating connecting piece, the first clamping part and the second clamping part form a tibia trunk outline, and the tail ends of the first clamping part and the second clamping part are percutaneous insertion ends;

still include the push rod, the rotation connecting piece center is provided with and is used for push rod hole that the push rod was inserted. According to the reduction requirement, the push rod can be inserted through the center of the rotating connecting piece to push the bone blocks which are not clamped by the clamp, so as to assist in reduction.

As a preferred technical scheme: the first and second clamping portions form three tibial trunk contours, namely an adult tibial trunk proximal 1/3, a medial 1/3 and a distal 1/3 anatomical contour. Can be used for reduction and fixation of fractures of different parts of the tibial shaft.

As a preferred technical scheme: the first handle part and the second handle part are provided with mutually matched fixing structures.

As a preferred technical scheme: one end of the push rod close to the first clamping part is provided with a pressurizing top for fixing the tibial stem. The compression top is arranged, so that the tibia block can be fixed more conveniently.

As a preferred technical scheme: the push rod is connected with the push rod hole through a thread structure.

As a preferred technical scheme: one end of the push rod, which is close to the first handle part, is provided with a push rod handle head, and the periphery of the push rod handle head is provided with a convex rib. The push rod can be conveniently screwed in.

As a preferred technical scheme: the push rod handle head is provided with a push rod handle head groove, and the push rod handle head groove is in an inner hexagonal shape. When the pressure is not enough, the screw can be screwed in by the inner hexagon wrench.

As a preferred technical scheme: the butterfly cap is used for fixing the second clamp body.

The reduction forceps are simple and convenient to operate, the first forceps body and the second forceps body are inserted in a split mode and encircle the tibial shaft, so that the forceps can be conveniently clamped and fixed, the additional operation wound caused by the combined insertion of the first forceps body and the second forceps body is avoided, the operation wound is obviously reduced, the blood circulation at the broken end of the fracture is slightly damaged, and the early recovery of a patient is facilitated.

Compared with the prior art, the utility model has the advantages that:

1. when the fixing clamp is used in the operation process, the small wound can clamp and fix the broken end of the tibia fracture, so that the wound of a patient is obviously reduced;

2. the fracture reduction wound of the tibia can be prevented from increasing, the influence on the bone blood circulation of the forceps holder part is very small, and the healing of a patient is facilitated;

3. obviously reduces the operation time, is beneficial to the operation of surgeons, and can be used for restoring the tibia before being implanted by matching with various tibia internal fixing devices.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic structural view of the first caliper body shown in FIG. 1;

FIG. 4 is an upper side view of FIG. 3;

FIG. 5 is a cross-sectional view B-B of FIG. 3;

FIG. 6 is a schematic structural view of the second caliper body shown in FIG. 1;

FIG. 7 is a top plan view of FIG. 6;

FIG. 8 is a cross-sectional view C-C of FIG. 6;

FIG. 9 is a schematic structural view of the push rod of FIG. 1;

FIG. 10 is a left side view of FIG. 9;

FIG. 11 is a schematic view of the construction of the compression top of FIG. 1;

FIG. 12 is a cross-sectional view D-D of FIG. 11;

FIG. 13 is a schematic view of the structure of the rotary shaft in FIG. 1;

FIG. 14 is a cross-sectional view E-E of FIG. 13;

FIG. 15 is a schematic view of the anchor head pad of FIG. 1;

FIG. 16 is a cross-sectional view F-F of FIG. 15;

FIG. 17 is a schematic structural view of the butterfly cap of FIG. 1;

FIG. 18 is a left side view of FIG. 17;

fig. 19 is a schematic structural view of embodiment 2.

In the figure: 1. a first caliper body; 101. a percutaneous insertion end of the first clamp body; 102. a first caliper body rotating member connecting portion; 103. the first clamp body hand-held part is connected with the handle; 104. a first clamp body holding part; 105. a first clamp body inverted tooth connecting part; 106. a first clamping portion; 2. a second caliper body; 201. the percutaneous insertion end of the second clamp body; 202. a second caliper body rotating part connecting part; 203. the second clamp body hand-held part is connected with the handle; 204. a second forceps body holding part; 205. the second clamp body is provided with a pawl connecting part; 206. a second clamping portion; 3. a push rod; 301. a push rod handle; 302. a push rod crown; 303. a push rod crown groove; 4. pressing and jacking; 401. a top inner hole is pressurized; 402. pressurizing the top head; 5. a rotating shaft; 501. the rotating shaft is connected with the first rotating piece; 502. the rotating shaft is connected with the second rotating part; 503. the center of the rotating shaft is provided with a screw hole; 504. a center falling hole of the rotating shaft; 6. an anchor head pad; 601. a middle hole of the anchor head pad; 7. butterfly cap, 701, butterfly cap center.

Detailed Description

The utility model will be further explained with reference to the drawings.

Example 1:

referring to fig. 1 and 2, a percutaneous tibia fracture reduction fixing forceps includes a first forceps body 1, a second forceps body 2 and a rotary connecting piece, the rotary connecting piece of the embodiment is a rotary shaft 5, and the first forceps body 1 and the second forceps body 2 are connected in a cross manner through the rotary shaft 5;

in this embodiment, the first forceps body 1 has a structure as shown in fig. 3 to 5, and sequentially includes a percutaneous insertion end 101 of the first forceps body, a first clamping portion 106, a first forceps body rotating member connecting portion 102, a first forceps body handle connecting handle 103, a first forceps body handle 104, and a first forceps body pawl connecting portion 105;

the second forceps body 2 is structured as shown in fig. 6-8, and sequentially comprises a percutaneous insertion end 201 of the second forceps body, a second clamping portion 206, a second forceps body rotating part connecting portion 202, a second forceps body handheld portion connecting handle 203, a second forceps body handheld portion 204 and a second forceps body inverted tooth connecting portion 205;

the first forceps body rotation part connecting part 102 and the second forceps body rotation part connecting part 202 are detachably connected through the rotating shaft 5, the first clamping part 106 and the second clamping part 206 form a tibia trunk outline, the tail end of the first clamping part 106 is a first forceps body percutaneous insertion end 101, and the tail end of the second clamping part 206 is a second forceps body percutaneous insertion end 201;

the percutaneous insertion end 101 of the first clamp body is similar to the percutaneous insertion end 201 of the second clamp body, is designed without teeth, is inserted percutaneously, and is inserted from the upper part of a tibia to the outer side of the tibia through the surface of the tibia to surround the outer cortex of the tibia;

the first jaw rotation member connection portion 102 is connected to the second jaw rotation member connection portion 202 via the rotation shaft 5;

the first clamp body inverted tooth connecting part 105 is fixedly connected with the second clamp body inverted tooth connecting part 205;

the first and second clamp portions 106, 206, when connected, may define three tibial stem contours, respectively, an adult tibial stem proximal 1/3, medial 1/3 and distal 1/3 anatomical contour, highly matching the tibial cross-section,

this embodiment is exemplified by the contour of the proximal end 1/3 of the adult tibial shaft;

the push rod 3 is also included, the structure of the push rod 3 is shown in figures 9 and 10, and comprises a push rod handle 301, a push rod handle head 302 and a push rod handle head groove 303,

the push rod 3 can be screwed into the middle hole of the rotating shaft, screwed into the far end, connected with the pressurizing top 4 and used for pushing the tibia surface at the inner side; the push rod handle 301 is in a threaded design; the push rod crown groove 303 is designed as an inner hexagon, and can be screwed in by an inner hexagon wrench when the pressure is weak;

the tail end of the push rod 3 is also provided with a pressurizing top 4, the structure of the pressurizing top 4 is shown in figures 11 and 12 and comprises a pressurizing top inner hole 401 and a pressurizing top 402, the pressurizing top inner hole 401 is designed in a threaded mode, the tail end of the push rod 3 is screwed into the pressurizing top inner hole 401 and connected with the pressurizing top 4, the pressurizing top 402 is designed in an inclined 45-degree mode, and the pressurizing top can assist the insertion and fixation of a tibial bone fracture internal fixation steel plate;

the structure of the swivel shaft 5 is shown in figures 13 and 14, and further comprises an anchor head pad 6 (the structure is shown in figures 15 and 16) and a butterfly cap 7 (the structure is shown in figures 17 and 18);

wherein, the rotating shaft 5 includes:

the rotating shaft is connected with the first rotating piece 501, the anchor head pad 6 is adopted for sealing the head when the rotating shaft is connected with the first rotating piece 501, and the rotating shaft is prevented from being connected with the first rotating piece 501 and falling off from the rotating shaft 5;

the rotating shaft is connected with the second rotating part 502, the far end of the rotating shaft is provided with a thread design, and the butterfly cap 7 is adopted to prevent the rotating shaft connected with the second rotating part 502 from falling off from the rotating shaft 5;

the center of the rotating shaft is provided with a screw hole 503, so that the push rod 3 can be conveniently screwed in;

a central drop hole 504 of the rotating shaft is designed by threads, so that the rotating shaft is convenient to pressurize and fix;

the anchor head pad 6 is provided with an anchor head pad middle hole 601 without threads and is designed in a matching way;

the butterfly cap 7 is provided with a butterfly cap center 701, and the butterfly cap center 701 is in a threaded design.

When the split type tibia bone forceps are used, the first forceps body 1 and the second forceps body 2 are inserted in a split type mode to encircle the tibia shaft, the first forceps body 1 is tightly attached to the upper edge of the tibia through a small skin incision on the upper edge of the tibia on the inner side of the tibia shaft, and the first forceps body is inserted into the back of the tibia through the bone surface; the second clamp body 2 is tightly attached to the back edge of the inner side of the tibial stem and inserted into the outer side of the tibial stem through a small incision on the skin below the inner side of the tibial stem. The first caliper body 1 is connected with the second caliper body 2 through a rotating shaft 5 between the first caliper body rotating part connecting part 102 and the second caliper body rotating part connecting part 202; the first forceps body hand-held part 104 and the second forceps body hand-held part 204 are mutually matched to enable the first clamping part 106 and the second clamping part 206 to be clamped and fixed through the inverted teeth of the first forceps body inverted tooth connecting part 105 and the second forceps body inverted tooth connecting part 205;

according to the reduction requirement, the push rod 3 can be inserted through the center of the rotating shaft 5, the pressurizing top 4 is screwed in, and the bone block which is not clamped is pushed to assist the reduction.

The reduction forceps are simple and convenient to operate, the forceps body is inserted in a split mode and encircles the tibial shaft, the forceps jaws are convenient to fix, extra operation trauma caused by the fact that the forceps are inserted in a combined mode into the fixing forceps is avoided, operation wounds are obviously reduced, blood circulation of fractured ends of the fracture is small in damage, and early recovery of patients is facilitated.

Example 2:

this embodiment is used for reduction fixation of the tibial shaft distal end 1/3, compared to embodiment 1, so the shapes of the first clamping portion 106 and the second clamping portion 206 are different, as shown in fig. 19, and the rest is the same as embodiment 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a percutaneous shin bone shaft fracture reduction fixation pincers which characterized in that: the clamp comprises a first clamp body, a second clamp body and a rotary connecting piece, wherein the first clamp body and the second clamp body are in cross connection through the rotary connecting piece; the first clamp body sequentially comprises a first clamping part, a first rotating connecting piece connecting part and a first handle part, the second clamp body sequentially comprises a second clamping part, a second rotating connecting piece connecting part and a second handle part, the first rotating connecting piece connecting part and the second rotating connecting piece connecting part are detachably connected through the rotating connecting piece, the first clamping part and the second clamping part form a tibia trunk outline, and the tail ends of the first clamping part and the second clamping part are percutaneous insertion ends;

still include the push rod, the rotation connecting piece center is provided with and is used for push rod hole that the push rod was inserted.

2. The percutaneous tibial bone fracture reduction fixation forceps of claim 1, wherein: the first and second clamping portions form three tibial trunk contours, namely an adult tibial trunk proximal 1/3, a medial 1/3 and a distal 1/3 anatomical contour.

3. The percutaneous tibial bone fracture reduction fixation forceps of claim 1, wherein: the first handle part and the second handle part are provided with mutually matched fixing structures.

4. The percutaneous tibial bone fracture reduction fixation forceps of claim 1, wherein: one end of the push rod close to the first clamping part is provided with a pressurizing top for fixing the tibial stem.

5. The percutaneous tibial bone fracture reduction fixation forceps of claim 1, wherein: the push rod is connected with the push rod hole through a thread structure.

6. The percutaneous tibial bone fracture reduction fixation forceps of claim 1, wherein: one end of the push rod, which is close to the first handle part, is provided with a push rod handle head, and the periphery of the push rod handle head is provided with a convex rib.

7. The percutaneous tibial bone fracture reduction fixation forceps of claim 6, wherein: the push rod handle head is provided with a push rod handle head groove, and the push rod handle head groove is in an inner hexagonal shape.

8. The percutaneous tibial bone fracture reduction fixation forceps of claim 1, wherein: the butterfly cap is used for fixing the second clamp body.