Safety introducer needle assembly
AssigneePoly Medicure Limited
InventorsRishi Baid, Raunak Gupta
Life of this patent
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Abstract
A safety introducer needle assembly having an introducer needle defining an axial direction, the needle having an outer surface and an inner surface defining a lumen which extends along the length of the needle in the axial direction; the outer surface defined by a wall of the needle forming a needle shaft that extend along the axial direction having a distal end and a proximal end, wherein the proximal end connected to a needle hub and the distal end comprising a sharp bevelled tip wherein the needle has a roughened or echogenic region having echogenic features; and a needle tip protector housed in a safety barrel and slidably arranged on the needle shaft from moving beyond the needle tip and wherein the safety barrel is engageably attached to the needle hub.
Claims20
A safety introducer needle assembly comprising:
- a needle defining an axial direction, the needle has a wall having an outer surface and an inner surface, the inner surface of the wall defining a lumen which extends along the length of the needle in the axial direction;
- wherein the outer surface of the wall of the needle forms a needle shaft that extends along the axial direction, wherein the wall has a distal end and a proximal end, wherein the proximal end is connected to a needle hub and the distal end comprises a tip;
- a safety barrel engagebly attached to the needle hub and comprising a proximal surface, wherein the safety barrel comprises at least one lateral protrusion extending from an outer edge of the proximal surface configured to be received by the needle hub;
- and
- a needle tip protector housed in the safety barrel and movably retained in an inner space of the safety barrel when the needle extends therethrough, wherein the needle tip protector captures the needle tip once the needle tip is received in the needle tip protector upon withdrawal of the needle in a protected position.
A medical device, comprising:
- a needle hub, the needle hub comprising a peripheral wall having at least one slit or recess;
- and
- a safety introducer needle assembly comprising:
- a needle defining an axial direction, the needle has a wall having an outer surface and an inner surface, the inner surface of the wall defining a lumen which extends along the length of the needle in the axial direction;
- wherein the outer surface of the wall of the needle forms a needle shaft that extends along the axial direction, wherein the wall has a distal end and a proximal end, wherein the proximal end is connected to the needle hub and the distal end comprises a tip;
- and
- a safety barrel engagebly attached to the needle hub and comprising a proximal surface;
- a needle tip protector housed in the safety barrel and movably retained in an inner space of the safety barrel when the needle extends therethrough, wherein the needle tip protector captures the needle tip once the needle tip is received in the needle tip protector upon withdrawal of the needle in a protected position;
- and
- wherein the safety barrel is provided with at least one lateral protrusion extending from outer edge of the proximal wall of the safety barrel configured to be received by the at least one slit or recess formed within the peripheral wall of the needle hub.
Dependencies are inferred from the claim text.