A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/32 (2006.01) A61M 25/06 (2006.01)
Patent
CA 2327302
The invention generally relates to A needle assembly comprising a needle having a needle proximal end, a sharp needle distal end, and a needle cannula extending therethrough; an elongate blunting device which is at least partially located within the needle cannula, the elongate blunting device having an elongate blunting member and a blunt holding member, the elongate blunting member having a blunting member proximal end, a blunting member distal end, a blunting member blood flow passage therethrough through which blood can flow from the blunting member distal end to the blunting member proximal end, and a blunting member blood exit opening through which the blood can flow out of the blunting member blood flow passage; the blunt holding member secured to the proximal end of the elongate blunting member, the blunt holding member having a surface facing the blunting member blood exit opening with a passage defined between the surface and the blunting member blood exit opening so that the blood can flow into the passage; a shifting member which can be actuated to move the blunt holding member relative to the needle, the blunt holding member upon movement relative to the needle, causing movement of the elongate blunting member from a retracted position wherein the blunting member distal end is retracted into the needle cannula so that the sharp needle distal end can penetrate a body, to an extended position wherein the blunting member distal end extends out of the needle cannula so as to prevent the needle from penetrating a body; and a flash chamber having an internal volume which is in communication with the passage so that the blood can flow from the passage into the internal volume, the flash chamber being at least partially made of a material through which the blood can be seen when located in the internal volume.
Miller Michael L.
Solomon Donald D.
Ethicon Inc.
Medex Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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