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screw for medical device

A medical device and screw technology, which is applied in the field of medical devices, can solve the problems of medical device screw breakage, affect the correction effect, and affect the effect, and achieve the effect of improving structural strength, reducing the possibility of fracture, and high flexibility

Active Publication Date: 2022-02-22
GRINM MEDICAL INSTR BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the long course of treatment, the inventor found that the current medical device screws have the risk of being broken in the alveolar bone by the orthodontic force. When they break, they need to be removed through maxillofacial surgery. Or take maxillofacial surgery will affect the clinical effect
[0004] In view of the related technologies mentioned above, the inventor believes that there is a defect that the screw of the medical device breaks during the treatment process, which affects the correction effect

Method used

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  • screw for medical device
  • screw for medical device
  • screw for medical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] refer to figure 1 and figure 2 , the medical device screw includes a screw body 1, a reinforcing rod 2 and an accessory 3; the screw body 1 is made of titanium alloy material, which has good biocompatibility and meets medical requirements; the reinforcing rod 2 is made of stainless steel or other high-strength It is made of the material of the screw body 1, which is arranged in the screw body 1, and is mainly used to improve the overall structural strength of the medical device screw, so as to reduce the possibility of the medical device screw breaking during the treatment process and ensure the correction effect; Annex 3 It is detachably connected to the screw body 1 and is mainly used for connecting the traction parts. The medical staff can replace the accessory 3 as needed.

[0044] refer to image 3 and Figure 4 , the screw body 1 is rod-shaped, which includes a head 11, a neck 12 and a body 13 that are integrally formed and arranged in sequence. The inside of ...

Embodiment 2

[0049] refer to Image 6 , the difference from Embodiment 1 lies in the connection structure, the connection structure 33 is still a disc, and a glyph groove 35 is processed on the disc, and a groove for connecting the traction member is processed at the notch of the glyph groove 35. The traction piece fixes the groove 36. This structural design can apply force to the teeth in one direction after the traction piece is installed.

Embodiment 3

[0051] refer to Figure 7 The difference from Example 1 lies in the connection structure. The connection structure 33 is formed on the connection block at the end of the cylinder 32 away from the fixed block 31. The connection block is provided with strip-shaped and mutually perpendicular cross-shaped grooves 37. The notch of the cross-shaped groove 37 is processed with a traction piece fixing groove 36 for connecting the traction piece. This structural design can apply force to the teeth in two directions after the traction piece is installed.

[0052] In this application, by separately setting the reinforcement rod 2 in the screw body 1 with a strength greater than that of the screw body 1, the overall structural strength of the medical device screw is greatly improved, reducing the possibility of the medical device screw breaking during the treatment process, and ensuring the correction Effect: By setting the external thread 15 of the body to a right-handed structure and the ...

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Abstract

The present application relates to the field of medical devices, in particular to a medical device screw, including a screw body, a reinforcing rod arranged in the screw body, and an accessory detachably connected to the screw body, the accessory is used to connect the traction member, and the reinforcing rod Strength is greater than that of the screw body. The application can reduce the possibility of breakage of medical device screws during treatment and ensure the effect of clinical treatment.

Description

technical field [0001] The present application relates to the field of medical instruments, in particular to a medical instrument screw. Background technique [0002] According to different uses, medical device screws include bone nails, nails for maxillofacial surgery, and anchorage screws. Usually, medical device screws are integrally processed from titanium alloy materials, mainly including head, neck and body; among them, the head is designed into different shapes according to different screw systems, and is mainly used to connect traction parts. [0003] However, during the long course of treatment, the inventor found that the current medical device screws have the risk of being broken in the alveolar bone by the orthodontic force. When they break, they need to be removed through maxillofacial surgery. Or take maxillofacial surgery will affect the clinical effect. [0004] With regard to the related technologies mentioned above, the inventor believes that there is a d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/86A61C7/00A61C8/00
CPCA61B17/86A61B17/8625A61B17/8635A61B17/8605A61C8/0021A61C8/0037A61C8/0096A61C7/00
Inventor 张炜鹏张宝祥袁志山王振强梁思远姜英奇李君涛廖赞杨阳
Owner GRINM MEDICAL INSTR BEIJING CO LTD
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