Unlock instant, AI-driven research and patent intelligence for your innovation.

Bone fixing device

A technique for fixation devices and fixation elements, applied in the direction of fixators, internal fixators, internal bone synthesis, etc., to achieve the effects of simple manufacturing, simple manufacturing technology, and simple structure

Active Publication Date: 2007-03-07
SYNTHES GMBH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A disadvantage of the known hip screws used with bone plates fixable on the femur is that their non-circular stems, which can be introduced into the sleeve of the bone plate, are fixedly connected to the fixation elements (screws or blades) of the bone fixation device. )

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bone fixing device
  • Bone fixing device
  • Bone fixing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] 1 to 4 show various embodiments of the bone fixation device 1 according to the invention with a connector 37 between the rod 2 and the fixation element 4, wherein the connector 37 includes the axial locking mechanism 12 ( FIGS. 2 a to 2 k ) and an interacting mechanism 5 , 6 ( FIGS. 3 , 4 ) that can lock the rotation. The interacting means 5 , 6 can lock the relative rotational movement between the rod 2 and the fastening element 4 frictionally ( FIGS. 3 a to 3 g ) or positively ( FIGS. 4 a to 4 d ).

[0059] The fastening element 4 is designed in the embodiment shown in FIGS. The recesses 8 between the blades 7 are open. The radial depth of the recess 8 remains constant over the axial length L and then decreases continuously until the recess 8 transitions at the fastening end 10 of the fastening element 4 onto its outer peripheral surface 11 . Rod 2 is provided with on its outer peripheral surface 38 two flat parts 39 that are arranged on the diameter direction, para...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a bone fixation means (1) comprising: A) a longitudinal shaft (2) with longitudinal axis (3), and; B) an anchoring element (4), which can be fixed inside a bone and which has the same longitudinal axis (3) and is characterized in that; C) interacting means (5; 6) are provided on the shaft (2) and on the anchoring element (4), which either permit or prevent a rotation of the anchoring element (4) about the longitudinal axis (3) relative to the shaft (2).

Description

technical field [0001] The invention relates to a bone fixation device according to the preamble of claim 1 . Background technique [0002] Such bone fixation devices are used, for example, to treat femur fractures in the proximal body center, especially trochanteric and femoral neck fractures. This device basically consists of a femur-fixable bone plate with a curved sleeve that can be inserted into the femoral neck for receiving the rod of the bone fixation device in a rotationally stable manner. [0003] A disadvantage of the known hip screws used with bone plates fixable on the femur is that their non-circular stems, which can be introduced into the sleeve of the bone plate, are fixedly connected to the fixation elements (screws or blades) of the bone fixation device. ). [0004] After successful placement of the hip screw, when the surgeon wants to introduce the non-circular sleeve of the plate onto the non-circular shaft of the hip screw, the DHS plate is no longer p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/74A61B17/86
CPCA61B17/748A61B17/8685A61B17/864A61B17/746A61B17/58A61B17/56
Inventor C·迪图瓦C·菲尔斯特
Owner SYNTHES GMBH