Flashback blood collection needle with needle shield
AssigneeBD Medical Products, Pte. Ltd.
InventorsAlvin Chee Leong Tan, Jon Yaohan Moh
Life of this patent
Estimating the term…
Abstract
A needle assembly is provided with the housing, and IV cannula for accessing a blood vessel and a non-patient cannula for communication with an evacuated tube. A flashback chamber is provided in the housing at or near the distal end of the housing. A shield is hinged to a portion of the assembly proximally of the entrance to the flashback chamber. As a result, good visibility of the flashback chamber is achieved. After use, the shield can be rotated into a closed portion for surrounding the IV cannula and avoiding accidental needle sticks.
Claims21
A shieldable needle assembly comprising:
- an assembly including:
- a housing having proximal and distal ends and a chamber wall extending between said ends for defining a chamber in said housing, at least a portion of said chamber wall being formed from a material that permits observation of a fluid flowing into said chamber;
- an IV cannula projecting distally from said housing and communicating with said chamber;
- and
- a shield pivotable with respect to said assembly and being positionable in an open position where said shield is spaced from said IV cannula and aligned to permit observation of a fluid in said chamber, said shield further being pivotable to a closed position where said shield covers said IV cannula,
- wherein at least a portion of said chamber is disposed distally of a location at which said shield is pivotable with respect to said assembly, and wherein said housing and said IV cannula are configured to provide fluid communication with the chamber for providing an indication of flashback of a fluid flowing into said housing.
A shieldable needle assembly comprising:
- an assembly including:
- a housing having proximal and distal ends and a chamber wall extending between said ends for defining a chamber in said housing, at least a portion of said chamber wall being formed from a material that permits observation of a fluid flowing into said chamber;
- an IV cannula projecting distally from said housing and communicating with said chamber;
- a non-patient cannula projecting from said housing and communicating with said chamber;
- and
- a shield pivotable with respect to said assembly and being positionable in an open position where said shield is spaced from said IV cannula and aligned to permit observation of a fluid in said chamber, said shield further being pivotable to a closed position where said shield covers said IV cannula,
- wherein said non-patient cannula includes a distal end disposed in said chamber, said distal end of said non-patient cannula being disposed distally of the location at which said shield is pivotable with respect to said assembly and wherein said housing, said IV cannula, and said non-patient cannula are configured to provide fluid communication with the chamber for providing an indication of flashback of a fluid flowing into said housing.
A shieldable assembly comprising:
- a needle holder extending between a first end and a second end and defining an open interior;
- and
- a needle assembly comprising:
- a housing having proximal and distal ends and a chamber wall extending between said ends for defining a chamber in said housing, at least a portion of said chamber wall being formed from a material that permits observation of a fluid flowing into said chamber, said housing engageable with said first end of said needle holder;
- an intravenous puncture tip extending from said distal end of said housing and a non-patient puncture tip extending from said proximal end of said housing, said non-patient puncture tip extending within said open interior of said needle holder when said housing is engaged with said first end of said needle holder and said intravenous puncture tip in fluid communication with said chamber of said housing;
- and
- a rotatable shield adapted to be positionable in an open position where said shield is spaced from said intravenous puncture tip, said shield further being rotatable to a closed position where said shield covers said intravenous puncture tip,
- wherein at least a portion of said chamber is disposed distally of a location at which said shield is pivotable with respect to said shieldable assembly so as to permit observation of a fluid in said chamber.
A shieldable needle assembly comprising:
- a housing comprising proximal and distal ends and a sidewall extending therebetween for defining a chamber at least partially disposed between the proximal and distal ends, at least a portion of said chamber wall being formed from a material that permits observation of a fluid flowing into said chamber;
- an IV cannula projecting distally from said housing and communicating with said chamber;
- and
- a shield hingedly connected to said assembly and being positionable in an open position where said shield is spaced from said IV cannula and aligned to permit observation of a fluid in said chamber, said shield further being rotatable to a closed position where said shield covers said IV cannula,
- wherein at least a portion of said chamber is disposed distally of a location at which said shield is hingedly connected to said assembly, and wherein said housing and said IV cannula are configured to provide fluid communication with the chamber for providing an indication of flashback of a fluid flowing into said housing.
Dependencies are inferred from the claim text.