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Device for driving fixation elements into bone and method of use thereof

A technology for fixing components and bones, which is applied in the field of medical devices and can solve problems such as the insertion of fixing components

Inactive Publication Date: 2017-08-29
A M SURGICAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can sometimes be difficult to insert the fixation element into the bone quickly enough or hard enough to make effective contact between the bone fragments in a reduced fracture

Method used

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  • Device for driving fixation elements into bone and method of use thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0073] Example 1: Rehabilitation and fixation of a metacarpal fracture

[0074] Male subject suffered a fracture near the distal end of the second metacarpal in the left hand. X-rays of the hands were performed and the nature of the fracture characterized implantation of bioabsorbable IM nails as desired treatment.

[0075] The metacarpophalangeal joints are bent 90 degrees, which exposes the head of the metacarpal and allows direct access of the fixation device. The fracture is reduced and held in place, and the trigger mechanism of the fixation device is actuated, which fires the IM nail through the head of the metacarpal into the medullary canal of the phalanx, securing the restored fragment of the metacarpal in the correct position to allow the fragment to Bond at the fracture site. Protruding excess filaments were pulled proximally 4 mm and trimmed, then knocked into the underlying subchondral bone.

example 2

[0076] Example 2: Rehabilitation and fixation of a patellar fracture

[0077] A male subject presented with a fracture of the left patella. The knee was x-rayed and it was found that the patella was broken laterally into upper and lower fragments. It was decided to rehabilitate the fracture and fix the fragments using tension band manipulation with the aid of Kirschner wires.

[0078] Briefly, a longitudinal incision is made on the patella and the patella is exposed. The fracture is reduced and held in place with the hooks having forceps contacting the top and bottom of the patella along the centerline.

[0079] An implant device loaded with a container containing a 2mm diameter Kirschner wire contacts the top of the patella and one side of the hook forceps. The implanted device is intended to fire the two fragments through the patella such that the distal end of the first K-wire will protrude through the bottom of the patella. The trigger mechanism is activated, which f...

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Abstract

An implanting device for driving a fastener or fixation element into bone is described. Also described are methods for using an implanting device for driving a fastener or fixation element into bone and a kit comprising a pneumatic implanting device for driving a fastener or fixation element into bone.

Description

[0001] This application claims priority to US Provisional Application Serial No. 62 / 051,094, filed September 16, 2014. technical field [0002] This application relates generally to medical devices. In particular, the present application relates to devices for implanting fixators into bone. Background technique [0003] Both complex and simple fractures of the bone have been found to heal more quickly and efficiently when the fragments are held together with the aid of fixation elements such as Kirschner wires (k-wire) or intramedullary nails (IM nails) . However, it can sometimes be difficult to insert the fixation element into the bone quickly enough or hard enough to make effective contact between the bone fragments in a reduced fracture. Contents of the invention [0004] The present application provides a device for efficiently and rapidly driving fasteners and fixation elements into bone tissue using pneumatic pressure. [0005] One aspect of the present applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/58
CPCA61B17/0401A61B17/848A61B17/92A61B17/921A61B2017/00544A61B2017/00548A61B2017/0409A61B17/72A61B2017/564A61B2017/924
Inventor 亚瑟·米尔扎罗米·米尔扎
Owner A M SURGICAL INC