CN212816440U - Mandibular condyle bone stripping clamp - Google Patents

Abstract

The mandibular condylar process bone peeling clamp comprises a handle part and a bone peeling part, wherein the left side and the right side of the rear end of the bone peeling part are respectively fixed with a side plate, the front end of the handle part is provided with a through hole, a long shaft is fixed between the two side plates and penetrates through the through holes, and the bone peeling part is hinged at the front end of the handle part through the side plates and the long shaft; to sum up, the utility model utilizes the V-shaped bayonet structure at the front end of the bone peeling part to push the mandible upwards and outwards easily, thus fully exposing the operative field, being beneficial to positioning and fixing the condyles and greatly shortening the operation time; additionally the utility model discloses a bone portion of peeling off wholly is the arc structure, gets into during comparatively complicated condyle structure when making things convenient for the operator to use, according to concrete service environment, can adjust the angle of bone portion of peeling off and handle portion to reach the most suitable angle, be adapted to different intraoperative environments.

Description

Mandibular condyle bone stripping clamp

Technical Field

The utility model belongs to the technical field of the medical treatment, concretely relates to card is shelled to mandibular condyle process bone.

Background

After the condyle fracture, the condyle can shift from the articular fossa to enter the cranial fossa upwards for severe patients due to the traction of the lateral pterygoid muscle and the anterior-medial displacement of the condyle. Because the surgical field is limited, it is difficult to find the condyles, and how to push the mandible upwards and downwards to enlarge the surgical field becomes a key step for successful surgery. The traditional bone-peeling and pushing B-shaped incised wound is easy to slip and hurt adjacent tissues to cause bleeding, and has poor effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the weak point among the prior art, provide a mandibular condyle process bone shells card, adopt this bone to shell and can conveniently change the mandibular condyle and rise a position to expose the art wild, be favorable to taking one's place and fixing of condyle process.

In order to solve the technical problem, the utility model adopts the following technical scheme: the mandibular condylar process bone peeling clamp comprises a handle part and a bone peeling part, wherein the left side and the right side of the rear end of the bone peeling part are respectively fixed with a side plate, the front end of the handle part is provided with a through hole, a long shaft is fixed between the two side plates and penetrates through the through holes, and the bone peeling part is hinged at the front end of the handle part through the side plates and the long shaft; the whole bone peeling part is of an arc-shaped structure, and the front end part of the bone peeling part is of a V-shaped bayonet structure;

the front side of the handle part is provided with a mounting groove, a long channel is arranged in the handle part, a rotating gear is arranged on the long shaft, a driving gear and a plurality of transmission gears are rotatably arranged in the mounting groove, the plurality of transmission gears are arranged side by side, the driving gear is meshed with the transmission gear at the end part, the transmission gear at the other end part is meshed with the rotating gear, a push rod is further arranged in the long channel in a penetrating manner, the push rod is matched with the width of the long channel, the front end part of the push rod is provided with a rack; the handle part is also provided with a sliding groove which is communicated with the long channel, the rear end of the push rod is fixed with a stud, the stud is arranged in the sliding groove in a transmission manner, the upper end of the stud is in threaded connection with a positioning nut, and the positioning nut is in jacking contact with the outer wall of the handle part.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has: the utility model utilizes the V-shaped bayonet structure at the front end of the bone peeling part to push the mandible upwards and outwards easily, thus fully exposing the operative field, being beneficial to positioning and fixing the condylar process and greatly shortening the operation time; additionally the utility model discloses a bone portion of peeling off wholly is the arc structure, gets into during comparatively complicated condyle structure when making things convenient for the operator to use, according to concrete service environment, can adjust the angle of bone portion of peeling off and handle portion to reach the most suitable angle, be adapted to different intraoperative environments.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic view of the installation of the rotary gear, the transmission gear and the push rod.

Detailed Description

As shown in fig. 1-3, the mandibular condyle process bone peeling clamp of the present invention includes a handle portion 1 and a bone peeling portion 2, wherein the left and right sides of the rear end of the bone peeling portion 2 are both fixed with side plates 3, the front end of the handle portion 1 is provided with a through hole, a long shaft 4 is fixed between the two side plates 3, the long shaft 4 is arranged in the through hole in a penetrating manner, and the bone peeling portion 2 is hinged at the front end of the handle portion 1 through the side plates 3 and the long shaft 4; the whole bone peeling part 2 is of an arc-shaped structure, and the front end part of the bone peeling part 2 is of a V-shaped bayonet structure 5;

the front side of the handle part 1 is provided with a mounting groove, a long channel is arranged in the handle part 1, a rotating gear 6 is arranged on the long shaft 4, a driving gear 7 and a plurality of transmission gears 8 are rotatably arranged in the mounting groove, the plurality of transmission gears 8 are arranged side by side, the driving gear 7 is meshed with the transmission gear 8 at the end part, the transmission gear 8 at the other end part is meshed with the rotating gear 6, a push rod 9 is further arranged in the long channel in a penetrating manner, the push rod 9 is matched with the width of the long channel, the front end part of the push rod 9 is provided with a rack, and; the handle part 1 is further provided with a sliding groove which is communicated with the long channel, the rear end of the push rod 9 is fixed with a stud 10, the stud 10 is arranged in the sliding groove in a transmission mode, the upper end of the stud 10 is connected with a positioning nut 11 in a threaded mode, and the positioning nut 11 is in abutting contact with the outer wall of the handle part 1.

When the utility model is used, the handle part 1 is held by hand, and the V-shaped bayonet structure 5 at the front end of the bone peeling part 2 is utilized at the B-shaped incision part, so that the mandible can be easily lifted and pushed downwards and outwards, the surgical field is fully exposed, the position and the fixation of the condylar process are facilitated, and the operation time is greatly shortened; additionally the utility model discloses a bone portion of peeling 2 wholly is the arc structure, gets into during comparatively complicated condyle structure when making things convenient for the operator to use, according to concrete service environment, can adjust bone portion of peeling 2 and handle portion 1's angle, and concrete adjustment method is: unscrewing positioning nut 11, move positioning nut 11 forward or backward, positioning nut 11 passes through double-screw bolt 10 and push rod 9 and drives the rack back-and-forth movement, thereby rack drive gear 7, drive gear 7 drives rotating gear 6 through a plurality of drive gear 8 and rotates, long axis 4 follows rotating gear 6 and rotates, thereby bone portion 2 takes place to rotate, after suitable angle, stop promoting positioning nut 11, screwing up positioning nut 11, can accomplish the fixing of bone portion 2 of shelling, the operator can hand handle portion 1 and operate.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims (1)

1. The mandibular condyle process bone stripping clamp is characterized in that: the bone peeling device comprises a handle part and a bone peeling part, wherein the left side and the right side of the rear end of the bone peeling part are respectively fixed with a side plate, the front end of the handle part is provided with a through hole, a long shaft is fixed between the two side plates and penetrates through the through hole, and the bone peeling part is hinged to the front end of the handle part through the side plates and the long shaft; the whole bone peeling part is of an arc-shaped structure, and the front end part of the bone peeling part is of a V-shaped bayonet structure;

the front side of the handle part is provided with a mounting groove, a long channel is arranged in the handle part, a rotating gear is arranged on the long shaft, a driving gear and a plurality of transmission gears are rotatably arranged in the mounting groove, the plurality of transmission gears are arranged side by side, the driving gear is meshed with the transmission gear at the end part, the transmission gear at the other end part is meshed with the rotating gear, a push rod is further arranged in the long channel in a penetrating manner, the push rod is matched with the width of the long channel, the front end part of the push rod is provided with a rack; the handle part is also provided with a sliding groove which is communicated with the long channel, the rear end of the push rod is fixed with a stud, the stud is arranged in the sliding groove in a transmission manner, the upper end of the stud is in threaded connection with a positioning nut, and the positioning nut is in jacking contact with the outer wall of the handle part.

Images