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Proximal humeral fracture fixing device and locking plate thereof

A technology of a fixing device and a locking plate, which is applied in the field of medical devices, can solve problems such as poor avoidance effect, achieve better avoidance effect, facilitate implantation, and reduce the risk of damage to the axillary nerve

Inactive Publication Date: 2021-03-26
DABO MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the proximal humeral fracture plate has a transition section to avoid the axillary nerve, the avoidance effect is not good, and there is a need for further improvement

Method used

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  • Proximal humeral fracture fixing device and locking plate thereof
  • Proximal humeral fracture fixing device and locking plate thereof
  • Proximal humeral fracture fixing device and locking plate thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Please check Figure 1 to Figure 3 , Fixation device for proximal humeral fractures, including locking plate A and fixation screws. The locking plate includes a head 1, a stem 2 and a twisted part 3 fixed between the head 1 and the stem 2, and the twisted part 3 makes the head 1 and the stem 2 twisted and arranged, and the twisted arrangement includes: the head 1 and the stem 2 The cadres 2 are arranged staggered in the first direction and the second direction, and an included angle is formed between the head 1 and the cadres 2, the first direction is arranged along a direction parallel to the thickness of the head 1, and the second direction is arranged along a direction perpendicular to the thickness of the head 1. The direction of the thickness of the part 1 is arranged. A relief groove 31 is recessed on the front wall of the torsion part 3 , and the axillary nerve B1 is avoided through the above-mentioned twisting arrangement and structure of the relief groove 31 ....

Embodiment 2

[0046] It differs from Embodiment 1 in that: Please refer to Figure 4 to Figure 6 , the stem 2 comprises a first stem section 23, a second stem section 24 and a torsion section 25 fixed between the first stem section 23 and the second stem section 24, and the first stem section 23 and the second stem section are connected by the twist section 25 The stem section 24 is also twisted, and the structure of the twisted section 25 can be the same as or different from that of the twisted part 3 .

[0047] The first stem section 23 sides and the second stem section 24 sides are all provided with suture holes 22, the suture holes 22 of the first stem section 23 can suture and fix the biceps humerus, and the suture holes of the second stem section 24 22 can repair and suture the rotator cuff, which neutralizes the strength of the muscles and increases the fixation effect.

Embodiment 3

[0049] It differs from Embodiment 1 in that: Please refer to Figure 7 , the relief groove 31 of the torsion part 3 has a structure that is large at both ends and small at the middle.

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PUM

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Abstract

The invention discloses a proximal humeral fracture fixing device and a locking plate thereof. The proximal humeral fracture fixing device comprises a locking plate and fixing bolts, wherein the fixing plate comprises a head part, a body part and a torsion part fixedly arranged between the head part and the body part; through the torsion part, the head part and the body part are in torsion arrangement; in addition, the front side wall of the torsion part is also concavely provided with a room-making groove; through the torsion arrangement and the structure of the room-making groove, axillary nerves are avoided; and the body part is provided with first locking and connecting holes, wherein the first locking and connecting holes are cooperated with the fixing bolts. The proximal humeral fracture fixing device has the following advantages that an axillary nerve avoiding effect is better, an axillary nerve injuring risk is lowered, and soft tissues are slightly injured during a surgical operation, and implantation is convenient.

Description

technical field [0001] The invention relates to a medical device, in particular to a fixation device for proximal humerus fracture and a locking plate thereof. Background technique [0002] Proximal humerus fractures account for 5% of systemic fractures and are common in elderly patients with osteoporosis. As the population ages, its incidence tends to increase gradually. Most proximal humerus fractures are fragility fractures like hip fractures, accounting for about 10% of fractures in the elderly. With the development of angle-stabilized plates, proximal humeral locking plates and other proximal humeral plates have been widely used in the internal fixation of proximal humeral fractures. The traditional pectoralis major interdeltoid approach and proximal humeral locking plate internal fixation are the classic surgical methods for internal fixation of proximal humeral fractures. However, this approach requires extensive soft tissue stripping and excessive muscle stretchin...

Claims

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Application Information

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IPC IPC(8): A61B17/80
CPCA61B17/8061
Inventor 李俊峰陈晋伟赖志敏刘崇兵
Owner DABO MEDICAL TECH CO LTD
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