CN213821681U

CN213821681U - Latarjet operation coracoid bone block fixer

Info

Publication number: CN213821681U
Application number: CN202022686809.8U
Authority: CN
Inventors: 邓桢翰; 陆伟; 柳海峰; 李皓; 李瑛�; 梁达强
Original assignee: Shenzhen Second Peoples Hospital
Current assignee: Shenzhen Second Peoples Hospital
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-30
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a Latarjet operation coracoid process bone piece fixer, include: the main tong arm and the auxiliary tong arm are hinged in a crossed mode in the middle of the combined pin shaft, a clamping opening is formed between a clamping head of the main tong arm and a clamping plate of the auxiliary tong arm, a clamping surface of the clamping head is a concave arc surface, at least one circular through hole is formed in the bottom of the concave arc surface, and a strip-shaped through hole corresponding to the circular through hole is formed in the clamping plate. The utility model discloses make the coracoid process can satisfy the bone hole processing requirement, convenient to use at the centre gripping in-process.

Description

Latarjet operation coracoid bone block fixer

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to Latarjet operation coracoid process bone piece fixer.

Background

In the Latarjet operation, the coracoid process osteotomy transposition therapy is to separate coracoid ligament and pectoralis minor muscle to intercept coracoid process, the coracoid process is a bone block with 2-3 cm length and 1.5 multiplied by 1.5cm cross section, then the lower surface of the coracoid process is polished until the coracoid process is completely peeled, and the connection position between the coracoid process and the anterior inferior glenoid is in vivo, so that the method of direct fixed connection is inconvenient to adopt, therefore, the method adopted at present is to drill a plurality of bone channels which are vertical to each other on the coracoid process, penetrate anti-rotation lines in the bone channels and arrange traction lines on the coracoid process, guide by utilizing the traction lines penetrating through the glenoid bone channels to lead the coracoid process to smoothly penetrate through the through grooves arranged on the subacromial tendon to be attached and connected with the anterior inferior glenoid, drill holes after clamping and fixing the coracoid process, but the existing clamping tool is not easy to complete the drilling work when clamping the coracoid process, the coracoid process has high difficulty in processing bone holes.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a fixator for coracoid bone mass in Latarjet surgery to solve the above technical problems.

In order to achieve the above object, the utility model provides a following technical scheme:

a Latarjet surgical coracoid bone fragment holder comprising: the main tong arm and the auxiliary tong arm are hinged in a crossed mode in the middle of the combined pin shaft, a clamping opening is formed between a clamping head of the main tong arm and a clamping plate of the auxiliary tong arm, a clamping surface of the clamping head is a concave arc surface, at least one circular through hole is formed in the bottom of the concave arc surface, and a strip-shaped through hole corresponding to the circular through hole is formed in the clamping plate.

Furthermore, the auxiliary clamp arm further comprises a clamp rod fixedly connected with the clamp plate, a plurality of pin joint holes distributed along a straight line are formed in the clamp rod, and the combined pin shaft sequentially penetrates through the mounting hole in the main clamp arm and the corresponding pin joint hole to enable the main clamp arm to be connected with the auxiliary clamp arm in a hinged mode.

Further, the diameter of the round through hole is 2.5mm, and the width of the strip-shaped through hole is larger than the diameter of the round through hole.

Furthermore, the combined pin shaft comprises a main body and a locking head, wherein the main body is composed of a first end plate and a pin shaft rod coaxially and fixedly arranged on the first end plate, the locking head is composed of a second end plate and a stud coaxially and fixedly arranged on the second end plate, and the stud is connected with an inner threaded hole on the pin shaft rod.

Furthermore, the number of the pivot holes is three.

Furthermore, the handle part of the main tong arm and the handle part of the auxiliary tong arm are both provided with anti-skid protrusions.

Further, the clamping head is provided with one or two round through holes.

According to the above technical solution, the utility model has the advantages that: because the clamping head is provided with the round through hole, the drilling work of the crisscross bone canal can be completed when the coracoid process is clamped and fixed; because the auxiliary clamp arm is provided with the plurality of pin joint holes, bones with different sizes can be clamped, and the clamping plate is provided with the strip-shaped through hole, so that the situation that the drill bit is cut is avoided.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic structural diagram of the combined pin of the present invention.

List of reference numerals: the clamp comprises a main clamp arm 1, a clamping head 11, a concave arc surface 12, a circular through hole 13, an anti-skid convex 14, an auxiliary clamp arm 2, a clamping plate 21, a clamp rod 22, a pivot hole 23, a strip-shaped through hole 24, a combined pin shaft 3, a main body 31, a first end plate 311, a pin shaft rod 312, a locking head 32, a second end plate 321 and a stud 322.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

For further explanation of the present application with reference to fig. 1 to 3, a Latarjet surgical coracoid bone fragment holder as shown in fig. 1 and 2 comprises: through the main tong arm 1 and the auxiliary tong arm 2 which are hinged in the middle of the combined pin shaft 3 in a crossed mode, a clamping opening used for clamping coracoid bones is formed between the clamping head 11 of the main tong arm 1 and the clamping plate 21 of the auxiliary tong arm 2, the clamping surface of the clamping head 11 is a concave arc surface 12 to prevent the coracoid bones from sliding out so that clamping is reliable, at least one circular through hole 13 is formed in the bottom of the concave arc surface 12, the circular through hole 13 is convenient for a drill to process bone holes through the completion of the clamping direction, so that the bone holes are convenient to process, a strip-shaped through hole 24 corresponding to the position of the circular through hole 13 is formed in the clamping plate 21, the drill is prevented from contacting with the clamping plate 21 by the arrangement of the strip-shaped through hole 24 to achieve unclamping, and the position processing precision of the circular through hole 13 is also reduced.

This application is preferred, have one or two round through-holes 13 on the holding head 11, the diameter of round through-hole 13 is 2.5mm, bar through-hole 24 width is greater than the diameter of round through-hole 13, just bar through-hole 24 extends along the length direction of assisting tong arm 2.

The auxiliary clamp arm 2 further comprises a clamp rod 22 fixedly connected with the clamp plate 21, a plurality of pin joint holes 23 distributed along a straight line are formed in the clamp rod 22, the combined pin shaft 3 sequentially penetrates through the mounting hole in the main clamp arm 1 and the corresponding pin joint hole 23 to enable the main clamp arm 1 to be hinged with the auxiliary clamp arm 2, the combined pin shaft is suitable for clamping bones with different thicknesses, and the strip-shaped through hole 24 can also be suitable for being used after the position of the auxiliary clamp arm 2 is adjusted.

In the present application, the number of the pivoting holes 23 is preferably three.

As shown in fig. 3, the combination pin 3 includes a main body 31 and a locking head 32, the main body 31 is composed of a first end plate 311 and a pin shaft 312 coaxially and fixedly disposed on the first end plate 311, the locking head 32 is composed of a second end plate 321 and a stud 322 coaxially and fixedly disposed on the second end plate 321, and the stud 322 is connected with an internal screw hole disposed on the pin shaft 312, so as to facilitate assembly and disassembly, and thus, the position adjustment process of the auxiliary clamp arm 2 is simple.

The handle portion of main tong arm 1 with the handle portion of assisting tong arm 2 all is equipped with anti-skidding protruding 14, avoids the hand roll-off to present the error in the operation process.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. 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. A Latarjet surgical coracoid bone fragment holder comprising: through combination round pin axle (3) middle part cross articulated main tong arm (1) and supplementary tong arm (2), the holding head (11) of main tong arm (1) with form the centre gripping mouth between splint (21) of assisting tong arm (2), the clamping face of holding head (11) is concave cambered surface (12), just the bottom of concave cambered surface (12) has at least one round through-hole (13), splint (21) are gone up have with bar through-hole (24) that round through-hole (13) position corresponds.

2. Latarjet surgical coracoid mass fixator according to claim 1, characterized in that the auxiliary forceps arm (2) further comprises a forceps rod (22) fixedly connected with the clamping plate (21), the forceps rod (22) is provided with a plurality of pivoting holes (23) distributed along a straight line, and the combined pin shaft (3) passes through the mounting hole and the corresponding pivoting hole (23) on the main forceps arm (1) in sequence to enable the main forceps arm (1) and the auxiliary forceps arm (2) to be hinged.

3. Latarjet surgical coracoid mass holder according to claim 1, characterized in that the diameter of the circular through hole (13) is 2.5mm, the width of the strip-shaped through hole (24) being greater than the diameter of the circular through hole (13).

4. Latarjet surgical coracoid bone block holder according to claim 1, characterized in that the composite pin (3) comprises a body (31) and a locking head (32), the body (31) being composed of a first end plate (311) and a pin shaft (312) coaxially fixed on the first end plate (311), the locking head (32) being composed of a second end plate (321) and a stud (322) coaxially fixed on the second end plate (321), the stud (322) being connected with an internal threaded hole located on the pin shaft (312).

5. Latarjet surgical coracoid bone block holder according to claim 2, characterized in that the number of pivoting holes (23) is three.

6. Latarjet surgical coracoid mass fixator according to claim 1, characterized in that the handle portion of the main jawarm (1) and the handle portion of the auxiliary jawarm (2) are provided with anti-slip projections (14).

7. Latarjet surgical coracoid mass fixator according to claim 1, characterized in that the clamping head (11) has one or two circular through holes (13) thereon.