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Fusion device with adjustable bone graft space

A space fusion and adjustable technology, applied in the direction of joint implants, joint implants, spinal implants, etc., can solve the problems that are not conducive to dealing with patients with intervertebral disc injuries, and achieve the effect of reducing the difficulty of surgery and increasing the imaging ability

Pending Publication Date: 2020-05-08
上海斯潘威生物技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional fusion cages are mostly one-piece structure, which is not conducive to dealing with patients with different degrees of intervertebral disc injuries

Method used

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  • Fusion device with adjustable bone graft space
  • Fusion device with adjustable bone graft space
  • Fusion device with adjustable bone graft space

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Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself...

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Abstract

The invention relates to the field of medical instruments, and specifically relates to a fusion device with adjustable bone graft space. The fusion device with adjustable bone graft space comprises afixing seat, a kinematic pair and a bolt screw. The fixing seat is formed by linking a rotary arm support and a chute base in a mode of mortise and tenon joint through a vertical draw-bore pin. The kinematic pair is composed of a main rotary arm, a lateral draw-bore pin, an auxiliary rotary arm, a connecting shaft and a sliding arm. A cylindrical convex boss preset at one end of the main rotary arm is inserted into a main arm mounting hole arranged in the rotary arm support to form clearance fit. The other end of the main rotary arm is connected to the auxiliary rotary arm through the lateraldraw-bore pin in a mode of mortise and tenon joint. The connecting shaft is in fixed rivet connection with the other end of the auxiliary rotary arm. The sliding arm wrapped at the end of the auxiliary rotary arm is installed on the connecting shaft. A ball-headed sliding table preset on the other end of the sliding arm is installed in a raceway type groove below the chute base. The bolt screw isscrewed into bolt screw holes arranged in the left side of the rotary arm support. The top end of the bolt screw is inserted into a locking blind hole I or a locking blind hole II arranged in the mainrotary arm, thereby achieving the effects of locking the kinematic pair that rotates to different positions, producing bone graft bins of different sizes, and treating different levels of intervertebral disc injuries in patients.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to an adjustable bone graft space fusion device. Background technique [0002] With the aging of the population, spinal degenerative diseases with neck and shoulder pain and low back pain as the main symptoms are seriously affecting people's work and life. Intervertebral body fusion is one of the main methods for the treatment of spinal degenerative diseases. As an orthopedic implantable medical device, the intervertebral fusion device is one of the main implants for fusion of adjacent intervertebral spaces in the spine. Its safety and effectiveness directly affect the effect of bony fusion of adjacent vertebrae. [0003] The traditional PEEK material has poor visualization ability of the fusion cage. Although titanium alloy parts with strong visualization ability are also added, due to the small size of the titanium alloy parts, the fusion cage visualization ability is still poor,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44A61F2/46
CPCA61F2/4455A61F2/4611
Inventor 汪清陈越
Owner 上海斯潘威生物技术有限公司
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