A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 37/00 (2006.01) A61B 17/56 (2006.01) A61F 2/46 (2006.01) A61B 17/28 (2006.01)
Patent
CA 2041147
An injection gun especially useful for inject- ing low volume, high pressure shots of bone cement. The gun includes a cylindrical housing with a plunger including a plunger rod extending axially through the housing. The plunger rod includes a segment which is provided with an axial series of notches. A ratchet block is slidable axially within the cylindrical housing and is concentric with the plunger rod. The ratchet cylinder mounts at least a ratchet pawl urged against the plunger rod and adapted to engage and lock into the series of notches for forward movement. A pistol grip extends from the cylindrical housing, and a lever is pivoted thereto with an extension of the lever engaging the ratchet cylinder for advancing the plunger. A second ratchet pawl is mounted on a fixed member of the cylindrical housing for retaining the plunger against rearward movement when the pawl in the ratchet cylinder is disengaged from the rod.
Gibbs Rebecca
Krygier Jan Janusz
Miller Joseph Elias
Bristol-Myers Squibb Company
Desrochers Louis A.
Gibbs Rebecca
Krygier Jan Janusz
Miller Joseph Elias
LandOfFree
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