CN2465671Y

CN2465671Y - Universal aimer

Info

Publication number: CN2465671Y
Application number: CN01210361U
Authority: CN
Inventors: 石仕元
Original assignee: XIAOSHAN CITY HOSPITAL OF TCM
Current assignee: XIAOSHAN CITY HOSPITAL OF TCM
Priority date: 2001-01-21
Filing date: 2001-01-21
Publication date: 2001-12-19
Anticipated expiration: 2011-01-21

Abstract

The utility model relates to a universal aimer used for clinical application of ligament contacting points when rebuilding or repairing anterior cruciate ligaments and rear cruciate ligaments. Two rotating arms of the utility model can rotate around a tightly locking screw bolt, and a locating handle and a guide pin can do the location of the ligament contacting points of the anterior cruciate ligaments and the rear cruciate ligaments in any angles and any directions; the utility model can specially do the location of tibia contacting points of cruciate ligaments by entering the rear of a knee joint from the inside approach of the rear of the knee joint, and overcomes the problem that native and foreign the prior art can not do the location of the tibia contacting points of the rear cruciate ligaments by entering a joint cavity from the inside approach of the rear of a knee. Operative procedures are convenient and accurate.

Description

A kind of universal sight

This utility model relates to medical instruments field, specifically is to rebuild to repair in the forward and backward ligamentaum cruciatum operation of knee joint under Guan Jing to be used for the universal sight of ligamentaum cruciatum that ligament ends point location, also is the ligamentaum cruciatum guider.

At present, domestic still untapped when being used for ligamentaum cruciatum and rebuilding prosthesis ligament end the sight of point location, abroad (as U.S. Stryker Corp., German Serpentis board company) ligamentaum cruciatum guider of producing can only be located on same plane, has only an arm, so can only position from medial approach before the knee joint when posterior cruciate ligament is rebuild in clinical practice, bring difficulty to operation technique.

Universal sight of the present utility model, can be from different faces when handing over the ligament reconstruction operations, different angles, numerous direction is carried out forward and backward ligamentaum cruciatum and is ended a little location, particularly can enter the knee joint rear from medial approach after the knee joint carries out the posterior cruciate ligament tibia and ends a little location, overcome the shortcoming that external sight can only position from medial approach before the knee joint, made operation technique more convenient, more accurate.

The technical scheme that realizes above-mentioned designing requirement be according to any point on the sphere therewith the perpendicular line of tangent line all form through the principle design of the centre of sphere, its structure is mainly by positioning handle, the guide pin handle, the guide pin sleeve, cursor and tight lock bolt are formed, tight lock bolt flexibly connects two cursors, two cursors slide respectively socket positioning handle and guide pin handle, interior circular hole at interior circular hole of guide pin handle and tight lock bolt is respectively applied for the slotting guide pin sleeve of cover, the characteristics of this utility model are, two cursors flexibly connect by tight lock bolt thread, thereby can position from Different Plane.

The good effect of this utility model is: because two cursors can be around the clamping screw rotary moveable, its range of activity is a dome shape, therefore can select different faces as the case may be when performing the operation clinical practice, different angles rebuilds that ligament ends point location when repairing the forward and backward ligamentaum cruciatum operation of knee joint.Particularly can be after knee joint inboard approach carry out posterior cruciate ligament when rebuilding tibia end a little location, overcome the difficulty that the medial approach before the knee joint that causes because of other multiple reasons positions, opened up a new way under arthroscope, rebuilding posterior cruciate ligament.

Details are as follows to technology contents of the present utility model below in conjunction with drawings and Examples:

Fig. 1 is this utility model topology view.

Fig. 2 is that this utility model cursor rotates topology view at any angle.

The female thread screw that two arc cursors of the present utility model are 3 one flexibly connects with tight lock bolt 4 screw threads respectively, two cursors 3 can take up 4 rotations of lock bolt and be located by tight lock bolt 4, on its two cursor 3, offer the arc dovetail groove of opening, the upper arm of positioning handle 1 and guide pin handle 6 sleeves that slide respectively in the arc-shaped and carry out stationary positioned by the bolt 2 at its cursor 3 back sides in the arc dovetail groove of cursor 3.The tip of positioning handle 1 underarm is made bending according to the anatomic form of intercondylar spine of tibia, and upper arm meets at right angles with underarm and links to each other.Two guide pin sleeves 5 penetrate the interior circular hole of 6 one of circular holes and guide pin handle in the tight lock bolt 4 respectively, and the positioning handle 1 underarm tip and two guide pin sleeves, 5 head ends that constitute as shown in Figure 1 correspond on the same point.Two cursors 3 can take up the rotation of lock bolt 4, and as shown in Figure 2, from different faces, different angle directions is rebuild the location that ligament ends a little when repairing forward and backward ligamentaum cruciatum and aimed at according to the concrete needs of clinical operation operation.Its Kirschner wire that inserts from the interior circular hole of the interior circular hole of 6 of guide pin handles or clamping screw 4 points to the tip of positioning handle 1 underarm all the time.When Healing in Anterior Cruciate Ligament Reconstruction, should fold tight lock with clamping screw 4 by universal sight cursor 3, the tip of positioning handle 1 underarm medial approach before the knee joint is stretched into articular cavity, find the tibia of rebuilding anterior cruciate ligament to end the position, tip is hooked, after adjusting angle positioning handle 1 and cursor 3 are fixed by bolt 2, inserted guide pin sleeve 5 in the interior circular hole in the urgent lock bolt, Kirschner wire is pierced the location along guide pin sleeve 5.When posterior cruciate ligament, the tip of positioning handle 1 underarm medial approach behind the knee joint is stretched into the knee joint cavity rear, the tibia that hooks posterior cruciate ligament ends point, unclamp tight lock bolt 4, with another cursor 3 around inboard before knee joint, insert guide pin sleeve 5, guide pin sleeve 5 is withstood below in the tibial tubercle, will

Tight lock bolt 4 is tightened, and pierces the Kirschner wire location from another guide pin sleeve 5.

Claims

1, a kind of universal sight, it is mainly by positioning handle, guide pin handle, guide pin sleeve, cursor and tight lock bolt are formed, tight lock bolt flexibly connects two cursors, two cursors are pivot bush unit positioning handle and guide pin handle respectively, one of guide pin handle is characterized in that by the socket guide pin sleeve respectively of circular hole in circular hole and the tight lock bolt cursor (3) is flexibly connected by tight lock bolt (4) screw thread.

2,, it is characterized in that the tip of positioning handle (1) underarm is made bending according to the anatomic form of intercondylar spine of tibia according to the described a kind of universal sight of claim.