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Pelvic fracture operation steel plate interlocking device

A steel plate and surgery technology, applied in the directions of surgery, outer plate, internal bone synthesis, etc., can solve problems such as difficult application scope, achieve the effect of firm and reliable connection, one-time permanent locking, and simple operation

Inactive Publication Date: 2019-01-15
马远
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity and diversity of pelvic fractures, it is difficult to have a large scope of application if the steel plate is set in advance as a multi-piece structure. and shape differences, as well as the uncertainty of complex pelvic fractures, it is difficult to have formally fixed steel plates for effective fixation constraints

Method used

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  • Pelvic fracture operation steel plate interlocking device
  • Pelvic fracture operation steel plate interlocking device
  • Pelvic fracture operation steel plate interlocking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: as figure 1 The shown transverse acetabular fracture with pubic bone fracture was fixed with pubic bone reconstruction plates 1 and 2. Plate 1 fixed the superior ilium spine to the lower acetabulum, and plate 2 fixed the ilium to the pubic bone. Fracture fractures are irregular, fracture transverse fractures①③⑤⑥longitudinal fractures②④, plate 1 and plate 2 can effectively fix and restrain fracture transverse fractures, and the two plates are separated independently, resulting in unstable fracture transverse fractures. use as figure 2 The illustrated steel plate auxiliary device fixes and connects the first steel plate and the second steel plate as a whole, so as to realize the fixation of the longitudinal fracture of the fracture. Therefore, the steel plate 1 and the steel plate 2 do not require special structural design, and only need to adopt a strip shape and distribute a plurality of fixing holes 2 to meet the requirements.

[0021] like figure 2 ...

Embodiment 2

[0024] Embodiment 2: As a further improvement on the basis of Embodiment 1, an internal friction set 8 and a groove internal friction surface 16 can also be added to closely cooperate with the rod surface friction layer 7 on the surface of the connecting rod 6 to realize the locking feature after compression. Solid and reliable after death. One-time permanent locking can be realized by adopting the method of this embodiment, that is, complete locking can be realized by destroying the friction surface and the friction layer. Only two steel plates 1 need to be removed during dismantling.

[0025] See the specific structure image 3As shown, an internal friction sleeve 8 is set at the bottom of the screw tube 10 located at the positioning column 3, and the internal friction sleeve 8 is provided with a slot 15, and the slot 15 matches the lower half of the positioning horizontal hole 5. After the rod 6 is locked in the positioning transverse hole 5, the underside of the connecti...

Embodiment 3

[0026] Embodiment 3: As a further improvement on the basis of Embodiment 1, an elastic gasket can also be set between the bottom of the internal friction sleeve 8 and the bottom of the coil 10, and the shrapnel can provide pressure to the internal friction sleeve 8 and to the top Lockwire pressure for increased stability.

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Abstract

The invention discloses a pelvic fracture operation steel plate interlocking device, which includes a positioning column installed with a strip-shaped steel plate fixing hole, a screw tube is arrangedon the upper part of the positioning column, and a top locking wire is installed in the screw tube. At that middle of the position column, a transverse hole penetrating through the position is arranged along the transverse direction. The positioning columns are respectively installed in the fixing holes of two independent strip-shaped steel plates, and a connecting rod is simultaneously sleeved in the positioning transverse holes of the two positioning columns and is respectively locked by a top locking wire. The invention can connect two or more independent pelvic bone fixation plates into one body in turn, and can realize effective connection and fixation no matter how the direction and angle of the combined plates are changed. Plates for pelvic fracture sites do not require a long andlarge structure to achieve high fixation strength. Multiple fragmentary fixation plates have infinite combination shapes, which can be used to fix the pelvis in any position with complex structure.

Description

technical field [0001] The invention belongs to the field of auxiliary equipment for pelvic fracture surgery, in particular to an auxiliary equipment for connecting adjacent independent steel plates in pelvic fracture surgery. Background technique [0002] Pelvic fracture is a serious trauma. Once the pelvis is fractured, the disability rate is as high as 50% to 60%, and the average mortality rate can reach 10.2%. Pelvic fractures are divided into low-energy trauma and high-energy trauma. More than half of pelvic fractures are caused by car accidents, that is, high-energy trauma. Injuries can also affect production for women. [0003] The structure of pelvic fractures is complex, resulting in diversity and uncertainty in the form of fractures. Different fracture sites lead to a variety of fracture forms. Coupled with individual differences and physical differences between different people, it is difficult to have a fixed plate for effective fixation. Restraint, the treatme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/8061A61B17/808A61B2017/564
Inventor 马远胡殿绪郭雄飞程省宋博王挺
Owner 马远
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