Anterior Cervical Spine Adjustable Interface Zero-profile Support Fusion Fixation Titanium Mesh System

An anterior cervical spine and adjustable technology, applied in the field of medical devices, can solve problems such as the long journey of crawling replacement healing, the length cannot be adjusted, and the non-fusion of bone grafts, so as to reduce the incidence of dysphagia, shorten the recovery time, and reduce the risk Effect

Active Publication Date: 2018-01-05
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Subtotal cervical spondylectomy was applied clinically in the 1960s, and titanium mesh was introduced in the 1980s and has been used clinically for nearly 30 years. Traditional bone graft fusion emphasizes "vertebral fusion"—bone is resected from the upper and lower vertebral bodies across the middle However, due to anatomical and physiological reasons, the distance between the upper and lower vertebral bodies is relatively long, and the "crawling replacement healing journey" of the bone after subtotal corpectomy is long and difficult (above 4cm), and the healing time is long. Wearing a neck brace for 3-6 months, unable to return to work in time, causing losses to the family, society, and the country
[0003] In addition, the traditional titanium mesh has been around for nearly 30 years. It is only used as a bone graft fusion device in cervical subtotal corpectomy surgery. The length cannot be adjusted and needs to be cut, and it needs to be used in conjunction with plate fixation. There are prosthesis subsidence and bone graft non-fusion many other complications

Method used

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  • Anterior Cervical Spine Adjustable Interface Zero-profile Support Fusion Fixation Titanium Mesh System
  • Anterior Cervical Spine Adjustable Interface Zero-profile Support Fusion Fixation Titanium Mesh System
  • Anterior Cervical Spine Adjustable Interface Zero-profile Support Fusion Fixation Titanium Mesh System

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as Figure 1-5 As shown, the present invention includes a fusion part 1 and a support part 2. There are two fusion parts 1. One fusion part 1 is fixedly connected to one end of the support part 2, and the other fusion part 1 is screwed to the other end of the support part 2. The two fusion parts At least two interface fusion holes 15 are respectively arranged on the outer end surface of the part 1. The interface fusion holes 15 are small in size and large in size. The side wall of the support part 2 is provided with an axially penetrating groove. The side wall of the groove is a mesh structure 22, and the bottom of the groove As a solid structure 23, the fusion part 1 is provided with a central through hole 14 communicating with the groove, and the fusion part 1 threaded with the support part 2 is provided with a locking screw 13, and the locking screw 13 is located on the side wall containing the thread, and is locked There are two screws 13, located on the same c...

Embodiment 2

[0041] Such as Figure 6 As shown, the other structures are the same as the first embodiment, except that the included angle between the two fusion parts 1 and the support part 2 in the axial direction is set to 90°, 85° or 80°.

Embodiment 3

[0043] Such as Figure 7 As shown, the other structures are the same as the first embodiment, except that the connection part 12 is only provided with oblique screw holes inclined to the central axis of the fusion part 1, and no vertical screw holes are provided.

[0044] Additionally, although figure 1 , 2 , The threaded connection between the fusion part 1 and the support part 2 shown in 6 and 7 is that the support part 2 is provided with an external thread 25, and the fusion part 1 is provided with an internal thread. Through the screw thread of the locking screw 13 But when the supporting part 2 is provided with an internal thread and the fusion part 1 is provided with an external thread, this function can also be realized, that is, by locking the head of the screw 13 and the two side walls of the groove Jam tight.

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Abstract

The invention discloses an adjustable and interface type zero-incisura titanium mesh supporting, fusing and fixing system for the anterior cervical spine and belongs to the field of medical instruments. The system comprises two fusion parts (1) and a supporting part (2), wherein one fusion part (1) is fixedly connected with one end of the supporting part (2), the other fusion part (1) is in threaded connection with the other end of the supporting part (2), at least two interface fusion holes (15) are formed in the outer end surfaces of the two fusion parts (1) respectively, the ports of the interface fusion holes (15) are small, and the inside of the interface fusion holes (15) are large. The system design adopts communication type and interface type double insurance fusion, the length is adjustable, zero incisura locking and fixation are realized, and steel plate fixation is not required.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an anterior cervical adjustable interface-type zero-notch support, fusion and fixation titanium mesh system. Background technique [0002] Subtotal cervical spondylectomy was applied clinically in the 1960s, and titanium mesh came out in the 1980s and has been used clinically for nearly 30 years. Traditional bone graft fusion emphasizes "vertebral fusion"—bone is resected from the upper and lower vertebral bodies across the middle However, due to anatomical and physiological reasons, the distance between the upper and lower vertebral bodies is relatively long, and the "crawling replacement healing journey" of the bone after subtotal corpectomy is long and difficult (above 4cm), and the healing time is relatively long. Wearing neck brace brake reaches 3-6 month, can not in time return work position, brings loss to family, society, country. [0003] In addition, the traditional tita...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/44A61B17/70
CPCA61B17/7061A61B17/7074A61B17/7097A61B2017/564A61B2017/7073A61F2/4455
Inventor 马立泰杨毅李玲利刘浩洪瑛宁宁
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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