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A pelvic fixation device

A fixation device, pelvis technology, applied in fractures, non-surgical orthopaedic surgery, medical science and other directions, can solve the problems of inability to completely eliminate pelvic ring instability, secondary injury to patients, long recovery period, etc., to reduce skin pressure. Sore risk, avoid secondary damage, high degree of automation effect

Active Publication Date: 2022-02-01
JINZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The strength of the above method is insufficient to close, and cannot continuously provide the closing force, the fixation effect is poor, and cannot meet the demand; in the prior art, external fixation devices are also used to achieve the purpose of fixation. In order to make the fixation device fit well with the human body, a The airbag is installed between the fixing device and the human body. Although the airbag can improve the fit and comfort, the shortcoming of the deformation of the airbag also makes it difficult for the small displacement changes of the separated pelvis during transfer or bumping. It is noticed that the instability of the pelvic ring cannot be completely eliminated, and the bleeding control effect is not satisfactory; in addition, the recovery period after the pelvic fracture is long, and it is usually necessary to wear a fixed device for a long time. Decubitus ulcers are prone to occur after long-term contact with the air bag, especially in the protruding part of the pelvic bone
In view of the poor fixation effect of the traditional pelvic fixation device and the defects that decubitus is prone to cause secondary injury and bleeding to the patient, this application proposes a new pelvic fixation device

Method used

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  • A pelvic fixation device
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of pelvic fixation device provided by the present invention comprises:

[0038] The first annular fixing part 1 is fixed around the hip bone and is used to close the hip bones on both sides of the pelvis;

[0039] The second annular fixing part 2 is fixed around the greater trochanter of the femur, and is used to close the greater trochanter of the femur on both sides of the pelvis;

[0040] The circulation fixing mechanism 3 includes four, two of which are respectively arranged on the first ring-shaped fixing member 1, and correspond to the two hip bone wings; the other two are arranged on the second ring-shaped fixing member 2, and are connected to the two There is a one-to-one correspondence between the greater trochanters of the femur; the first ring-shaped fixing part 1 and the second ring-shaped fixing part 2 are provided with installation holes 4 for installing the loop fixing mechanism 3;

[0041] Each circulation fixing mechanism 3 all comprises:

[00...

Embodiment 2

[0047]In order to better fix the first ring-shaped fixing part 1 and the second ring-shaped fixing part 2, on the basis of embodiment 1, this embodiment has two height-adjustable vertical connecting parts 9, and the vertical connecting parts 9 A through groove 10 for passing the first annular fixing part 1 and the second annular fixing part 2 is provided on the top, and the inner and outer surfaces of the vertical connecting part 9 corresponding to the through groove 10 are provided with strips along the width direction of the vertical connecting part 9. shaped notch 11, the strip-shaped notch 11 and the through groove 10 make the vertical connecting member 9 penetrate along the thickness direction;

[0048] A connector 13 is sheathed on the outside of the first limiting member 5, and the first limiting member 5 is set in the strip-shaped gap 11 through the connecting member 13. The outer wall of the connecting member 13 is also provided with upward and downward extending The ...

Embodiment 3

[0052] Such as Figure 4 As shown, in order to make the pressurized part fully contact with the outside air and improve air permeability, a piston cylinder 16 is also provided outside the connecting piece 13, and a piston 17 is arranged inside the piston cylinder 16, and the piston 17 is connected to the first The stopper 5 or the second stopper 6 are connected, and the piston cylinder 16 is provided with an air inlet and an air outlet, and the air inlet is provided with a first one-way valve for allowing external air to enter the piston cylinder 16. Valve, the gas outlet is provided with a second one-way valve for discharging the gas in the piston cylinder 16, and the gas outlet transmits the gas to the first limiter 5 and the second limiter 6 through the air guide tube close to the human body at the end of.

[0053] In this embodiment, on the basis of cyclic pressing, in order to make the pressed skin quickly and effectively contact with the air, on the basis of embodiment ...

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PUM

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Abstract

The invention discloses a pelvic fixation device, which belongs to the technical field of pelvic fixation devices. The pelvic fixation device includes a first ring-shaped fixing part and a second ring-shaped fixing part; two of the circulation fixing mechanisms are respectively arranged on the first ring-shaped fixing part, and correspond to the two hip bones one by one; the other two are arranged on the On the second ring fixing part, and corresponding to the two greater trochanters of the femur; the first ring fixing part and the second ring fixing part are provided with mounting holes for installing the loop fixing mechanism; each loop fixing mechanism includes: A position-limiting part, which is provided with an accommodation cavity inside, and is slidably arranged in the installation hole; a second position-limiting part, which is arranged in the accommodation cavity, and is slidably connected with the accommodation cavity; a driving mechanism, used to make the first position-limiting part Reciprocating and reverse movement with the second limiting member. The pelvic fixation device of the present invention can provide continuous and stable fixation and retraction effects for separated pelvic fractures, and can well prevent the occurrence of bedsores, and is suitable for long-term wearing.

Description

technical field [0001] The invention relates to the technical field of pelvic fixation devices, in particular to a pelvis fixation device. Background technique [0002] Pelvic fracture is a serious trauma, mostly caused by high-energy trauma, and more than half of them are accompanied by complications or multiple injuries. Due to the huge amount of bleeding in patients with pelvic fractures, patients are prone to hemorrhagic shock and death due to shock. Therefore, for first aid for patients with pelvic fractures, the first thing to do is to close the separated and displaced pelvis after the fracture, and at the same time eliminate or reduce the pain caused by the fracture. Instability of the pelvic ring to achieve the purpose of reducing bleeding. The means for realizing this purpose at present mainly is to use pelvic girdle, abdominal girdle or bed sheet to bind and fix the pelvis. [0003] The strength of the above method is insufficient to close, and cannot continuousl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F5/058A61F5/01
CPCA61F5/058A61F5/01A61F2005/0183
Inventor 曹阳毕云龙范仲凯
Owner JINZHOU MEDICAL UNIV