Device for the injection of bone cement, comprising an overpressure locking system
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United States of America Patent
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Nov 4, 2014
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N/A
app pub date -
Nov 16, 2011
filing date -
Nov 16, 2010
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Abstract
The invention relates to a device for the injection of a bone cement. The invention comprises a container provided with one end including an outlet and a second end that receives a piston. The piston is moved by means of an injection screw that projects from the container body and engages with gripping means comprising injection screw rotation means that can self-lock depending on the pressure exerted inside the container body, said rotation means comprising a handle which is provided with a passage that receives the injection screw and which is hinged thereto by means of a pair of male/female disks. One disk is known as the drive disk and moves integrally with the rotation movements of the handle, while the other disk is known as the driven disk, said drive disk coming into contact with the driven disk in response to a compressive force exerted on the distal part of the injection screw.
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