CN2219106Y

CN2219106Y - External fixation supporter for department of orthopedics

Info

Publication number: CN2219106Y
Application number: CN 95210611
Authority: CN
Inventors: 宋振南
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-28
Filing date: 1995-04-28
Publication date: 1996-02-07
Anticipated expiration: 2005-04-28

Abstract

The utility model discloses an external fixation supporter for the department of orthopedics, composed of a transverse clamp splice, a vertical clamp splice, a fixing bracket, an inner sleeve pipe, a fixing pipe, etc. One reversing ball is arranged in each clamp splice, and the reversing ball is respectively contained between the corresponding fixing bracket and a spherical surface tightly pushing block. The eccentric shaft sleeves in the inner sleeve pipe and the fixing pipe respectively push the adjacent spherical surface tightly pushing blocks. The sleeve pipe screw is positioned on the fixing pipe, and the end of the sleeve pipe screw pushes and is inserted on the slid slot of the inner sleeve pipe of the fixing pipe. The utility model is characterized in that the fixing bracket is provided with a plurality of tightly pushing captive setscrews, and the ends of the captive setscrews simultaneously push the inside planes of the corresponding clamp splices. The utility model overcomes the defects of the existing supporter, the friction force between the reversing ball and the tightly pushing block is small, no weight can be bore, and the dislocation bone knitting is created.

Description

The orthopaedics exterior fixation bracket

This utility model relate to surgery in the International Classification of Patents and orthopedic instruments (A61B, A61F), orthopaedics exterior fixation bracket particularly.

In the damaged treatment of the opening that causes because of wound or closed fracture, old fracture, bone does not connect and bone, be extensive use of the multi-functional orthopedic unilateral external fixation apparatus.It is made up of horizontal, vertical fixture block and fixed mount thereof, fixture block screw, stationary pipes, inner sleeve, bracket adjustment device.Horizontal, vertical fixture block is clamped respectively to control oneself and is squeezed into the draw point of knochenbruch two ends, and fastening by the fixture block screw.One end of horizontal, vertical fixture block respectively has a reversing ball, and it is contained between separately the fixed mount and sphere withstanding tight block.Lay respectively at the excentric sleeve of inner sleeve, stationary pipes,, regulate its degree of eccentricity, can force adjacent separately sphere withstanding tight block to move and compress to reversing ball by rotation.Inner sleeve inserts in the stationary pipes, is fixed by the sleeve pipe screw.The bracket adjustment device is close in stationary pipes one side, and respectively there is a cross bar at its two ends and inserts in the excentric sleeve.

In the treatment, after knochenbruch coincide, regulate bracket adjustment device, length and the reversing ball of inner sleeve in stationary pipes, distinguish fastening then.But there are serious problems in this support, and it is too little and be shifted mainly to show as frictional force between reversing ball and the sphere withstanding tight block.The applicant causes fibula, tibia comminuted fracture because of traffic accident.In the treatment with above-mentioned support fixed tibial.After three months, find that knochenbruch dislocation school again in hospital connects.Its reason is body wt greater than described frictional force, forces reversing ball to rotate, thereby promotes knochenbruch and misplace.

Task of the present utility model provides the sharp exterior fixation bracket of a kind of bone, in case fastening, invariant position between its each parts.

Task is achieved in that respectively that on horizontal fixture block fixed mount, perpendicular fixture block fixed mount several are set hold out against check screw, its end props up on the inner side plane of corresponding horizontal, vertical fixture block simultaneously.It is identical that all the other structures and background technology are introduced.

Press the orthopaedics exterior fixation bracket that such scheme is made, can bear whole body weight and do not walk.

Accompanying drawing is the sketch map of an example in this utility model.

Horizontal fixture block [1] and perpendicular fixture block [14], clamping respectively controls oneself squeezes into the draw point [13] of knochenbruch, and by fixture block screw [2] tightening separately.Generally respectively press from both sides two pins.One end of horizontal, vertical fixture block [1] [14] respectively has a reversing ball [11], is contained in respectively anyhow between the fixture block fixed mount [3] [12] and sphere withstanding tight block [10] separately.The excentric sleeve [9] that lays respectively at inner sleeve [5] and stationary pipes [7] is pushed down adjacent separately sphere withstanding tight block [10].Be close in the bracket adjustment device [8] of stationary pipes [7] one sides, respectively there is a cross bar at its two ends and inserts in the corresponding excentric sleeve [9].Said inner sleeve [5] and stationary pipes [7] fixing held out against the chute of inner sleeve [5] and finished by the sleeve pipe screw [6] in the stationary pipes [7].On above-mentioned horizontal fixture block fixed mount [3], perpendicular fixture block fixed mount [12], at least respectively there are three to hold out against check screw [4], its end props up on corresponding fixture block [1] [14] inner side plane simultaneously.

If alleviate the weight of entire bracket, reduce grazing and also knock down price, can not attached bracket adjustment device [8], and go up the system screw thread and be equipped with nut at inner sleeve [5].Operation back gets final product with this nut pipe [7] that is tightened.

Claims

1, a kind of orthopaedics exterior fixation bracket, be used for fracture, bone does not connect, bone is damaged, its two ends are respectively the horizontal fixture blocks [1] that clamping has been squeezed into bone draw point [13], perpendicular fixture block [14], one end of described fixture block respectively has a reversing ball [11], it is contained in horizontal fixture block fixed mount [3], between perpendicular fixture block fixed mount [12] and the corresponding sphere withstanding tight block [10], be positioned at inner sleeve [5], excentric sleeve [9] among the stationary pipes [7], prop up respectively and adjacent separately sphere withstanding tight block [10], be loaded on the sleeve pipe screw [6] on the stationary pipes [7], the end props up on the chute of the inner sleeve [5] among the insertion stationary pipes [7], be positioned at stationary pipes [7] bracket adjustment device [8] on one side, respectively there is a cross bar at two ends, and insert in the excentric sleeve [9], it is characterized in that horizontal fixture block fixed mount [3], perpendicular fixture block fixed mount [12] respectively has several to hold out against check screw [4], and their end props up on the inner side plane of corresponding separately fixture block [1] [14] simultaneously.

2, orthopaedics exterior fixation bracket as claimed in claim 1 is characterized in that also being shaped on screw thread on the inner sleeve [5] and being furnished with nut.