CN210077833U

CN210077833U - Acromioclavicular joint positioning repositor

Info

Publication number: CN210077833U
Application number: CN201822013161.0U
Authority: CN
Inventors: 常瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-03
Filing date: 2018-12-03
Publication date: 2020-02-18
Anticipated expiration: 2028-12-03

Abstract

The utility model discloses a acromioclavicular joint positioning restorer, which comprises a clavicle end, a positioner and a coracoclavicular end; the clavicle end is an arc-shaped hollow tubular object, and a through hole is formed in the top of the clavicle end; the beak-like bulge end is an L-shaped arm with a certain radian, the short arm end of the beak-like bulge end extends into the hollow tube of the clavicle end, and the front edge of the long arm end is flat; the locator passes through the through hole at the top of the clavicle end and ends at the flat part of the front edge of the coracoid end. The utility model discloses solved simultaneously acromioclavicular joint and reset and pinpointed, establish two problems of bone way, on the notched basis of wicresoft, use the spiral pressurization mode accuracy to reset acromioclavicular joint, through the clavicle end locator of adjustable direction, adopt suitable angle to put into the pilot pin, the accurate preparation bone way of while, and avoided the coracoid process down important nerve, vascular damage.

Description

Acromioclavicular joint positioning repositor

Technical Field

The utility model belongs to the technical field of medical instrument, involve the positioning and resetting apparatus, concretely relates to acromioclavicular joint positioning and resetting ware.

Background

Acromioclavicular dislocation is one of the common shoulder joint injuries, and the incidence rate is about 0.3 percent. The conventional treatment scheme is incision reduction internal fixation, comprises fixing modes such as acromioclavicular hook steel plates, coracoid screws, loop steel plates and the like, and can adopt an incision reduction or minimally invasive surgery mode.

The dislocation acromioclavicular joint needs to be reset in the treatment process, no special positioning reset instrument exists at present, an operator generally adopts direct-view or perspective reset fixation, the effect is not ideal, and sometimes the situation of incomplete fixation occurs. The brachial plexus and subclavian artery and vein are under the clavicle, which often causes tissue damage during operation.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, the validity that resets, the accuracy of location when dislocation in order to increase the acromioclavicular joint, the utility model provides an acromioclavicular joint location restorer has solved the acromioclavicular joint simultaneously and has reset and pinpointed, has established two problems of bone way, on the basis of wicresoft's incision, uses the accurate acromioclavicular joint that resets of spiral pressurization mode, through the clavicle end locator of adjustable direction, adopts suitable angle to put into the pilot pin, the accurate preparation bone way of while, and avoided the coracoid process down important nerve, vascular damage.

Therefore, the utility model adopts the following technical scheme:

a acromioclavicular joint positioning restorer comprises a clavicle end, a positioner and a coracoclavicular end; the clavicle end is an arc-shaped hollow tubular object, and a through hole is formed in the top of the clavicle end; the beak-like bulge end is an L-shaped arm with a certain radian, the short arm end of the beak-like bulge end extends into the hollow tube of the clavicle end, and the front edge of the long arm end is flat; the locator passes through the through hole at the top of the clavicle end and ends at the flat part of the front edge of the coracoid end.

Preferably, the beak projecting end has an arc of 45 ° in the form of a flat ellipse.

Preferably, the clavicle end is adapted to engage the coracoid end, is adjustable in orientation along the coracoid end, and is lockable.

Preferably, the outer portion of the clavicle end on the side facing the beak projecting end is wave-shaped.

Preferably, the locator is a kirschner wire hollow locator with an external screw thread, and can be inserted into a through hole at the top of the clavicle end.

Preferably, the kirschner wire hollow positioner is used for placing a positioning pin and installing a pressurizing device, a nut is arranged on the external screw, and the nut is used for pressurizing and resetting.

Preferably, the clavicle end and the coracoid end are both made of metal.

Preferably, the metal comprises stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the accuracy is good. The coracoid end of the instrument can be accurately placed through a small incision under the coracoid process, and the length of the coracoid end is about 1 cm; the clavicle end uses an adjustable positioning guide device to determine the direction and length of the positioning pin.

(2) The safety is high. The coracoid end is designed into an oval flat shape, and the positioning needle is positioned in the center of the coracoid end and cannot protrude, so that subclavian tissues are protected.

(3) The effectiveness is strong. The instrument uses a mechanical pressurizing device, can effectively reset the dislocated acromioclavicular joint, and is convenient for the further operation of an operator.

(4) The instrument is less exposed, and the incisions of the clavicle and the coracoid end are 1cm, so that the incision is obviously reduced compared with the conventional incision.

(5) The two problems of acromioclavicular joint reduction, accurate positioning and bone canal establishment are solved, the acromioclavicular joint is accurately reduced by using a spiral pressurization mode on the basis of minimally invasive incision, a positioning needle is placed at a proper angle through a clavicle end positioner with adjustable direction, the bone canal is accurately manufactured, and the damage of important nerves and blood vessels under the coracoid process is avoided.

Drawings

Fig. 1 is a schematic view of the structure of the acromioclavicular joint positioning repositor provided by the present invention.

Fig. 2 is a schematic structural view of the clavicle end of the acromioclavicular joint positioning repositor provided by the present invention.

Fig. 3 is a schematic structural view of a positioner in the acromioclavicular joint positioning repositor provided by the present invention.

Fig. 4 is a schematic structural view of the coracoclavicular joint positioning restorer of the present invention.

Description of reference numerals: 1. a clavicle end; 2. a positioner; 3. a rostral end; 4. and a nut.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are only used for explaining the present invention, but not for limiting the present invention.

As shown in fig. 1, the utility model discloses a acromioclavicular joint positioning restorer, which comprises a clavicle end 1, a positioner 2 and a coracoid end 3; the clavicle end 1 is an arc-shaped hollow tubular object, and a through hole is formed in the top of the clavicle end 1; the coracoid end 3 is an L-shaped arm with a certain radian, the short arm end of the coracoid end 3 extends into the hollow tube of the clavicle end 1, and the front edge of the long arm end is flat; the locator 2 passes through a through hole at the top of the clavicle end 1 and ends at the flat part of the front edge of the coracoid end 3.

Specifically, as shown in fig. 4, the beak-protruding end 3 has an arc of 45 ° and is in the shape of a flat ellipse.

Specifically, the clavicle end 1 is engaged with the coracoid end 3, can be adjusted in direction along the coracoid end, and can be locked.

Specifically, as shown in fig. 2, the outer portion of the clavicle end 1 on the side facing the beak projection end 3 is wavy.

Specifically, as shown in fig. 3, the locator 2 is a kirschner wire hollow locator with an external screw, and can be inserted into a through hole at the top of the clavicle end 1.

Specifically, the kirschner wire hollow positioner is used for placing a positioning pin and installing a pressurizing device, a nut 4 is arranged on the external screw, and the nut 4 is used for pressurizing and resetting.

Specifically, the clavicle end 1 and the beak-like projecting end 3 are both made of metal.

Specifically, the metal comprises stainless steel.

Examples

The use method of the acromioclavicular joint positioning restorer comprises the following steps: in the process of the acromioclavicular dislocation operation, a small incision is made at the coracoid process, the coracoid root is stripped at the flat position of the front edge of the coracoid end 3, and the coracoid root is positioned. The clavicle end 1 is used, a proper angle is adjusted, a small incision is made additionally, the kirschner wire positioner 2 is screwed in, the acromioclavicular joint is reset and locked, the positioning needle is drilled into the clavicle through the kirschner wire positioner and penetrates through the clavicle and the coracoid root, and the coracoid end 3 blocks the kirschner wire and protects important blood vessels and nerves below the coracoid joint. After the pressurization maintenance device was installed, the k-wire positioner 2 was unscrewed, and the clavicle-coracoid bone tunnel was made using a 4.5mm core drill. The clavicle penetrates a guide steel wire along the clavicle, a manufactured loop steel plate guide wire is led out, a loop steel plate fixing wire is tensioned, a double loop steel plate or a cherish binding wire can be used for fixing, the clavicle far end can be additionally made into the clavicle, and the coracoclavicular ligament is reconstructed. Thus, the operation is completed.

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 present invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be included therein.

Claims

1. The utility model provides a acromioclavicular joint location restorer, includes clavicle end, locator, beak suddenly end, its characterized in that: the clavicle end is an arc-shaped hollow tubular object, and a through hole is formed in the top of the clavicle end; the beak-like bulge end is an L-shaped arm with a certain radian, the short arm end of the beak-like bulge end extends into the hollow tube of the clavicle end, and the front edge of the long arm end is flat; the locator passes through the through hole at the top of the clavicle end and ends at the flat part of the front edge of the coracoid end.

2. The acromioclavicular joint positioning reducer as recited in claim 1, wherein: the radian of the beak tip is 45 degrees and is in a flat ellipse shape.

3. The acromioclavicular joint positioning reducer as recited in claim 1, wherein: the clavicle end is engaged with the coracoid end, can be adjusted in direction along the coracoid end, and can be locked.

4. A acromioclavicular joint positioning reducer as recited in claim 3, wherein: the outer part of one side of the clavicle end facing the beak projecting end is in a wave shape.

5. The acromioclavicular joint positioning reducer as recited in claim 1, wherein: the locator is a kirschner wire hollow locator with external screw threads and can be inserted into a through hole at the top of the clavicle end.

6. The acromioclavicular joint positioning reducer as recited in claim 5, wherein: the Kirschner wire hollow positioner is used for placing a positioning pin and installing a pressurizing device, a nut is arranged on the outer spiral and used for pressurizing and resetting.

7. A acromioclavicular joint positioning reducer as recited in any one of claims 1-6, wherein: the clavicle end and the coracoid end are both made of metal.

8. The acromioclavicular joint positioning reducer as recited in claim 7, wherein: the metal comprises stainless steel.