Enclosed Needle Device with Fluid Path Access
First Claim
Patent Images
1. An enclosed needle catheter insertion device comprising:
- a catheter having a catheter hub and a catheter tube extending distally from the catheter hub;
an elongated needle guard housing extending between a distal end removably coupled to the catheter hub and a proximal end defining a space therebetween;
an elongated needle support housing telescopingly received within the space of the needle guard housing, the needle support housing having a distal end and a proximal end defining a fluid path therebetween;
a needle extending distally from the support housing distal end and extending through the catheter tube such that a sharp tip of the needle is exposed in a first position of the needle with the distal end of the support housing positioned toward the distal end of the guard housing, the needle being withdrawn from the catheter and enclosed by the guard housing in a second position of the needle with the distal end of the support housing positioned away from the distal end of the guard housing; and
the support housing being elongated sufficiently that a proximal portion thereof is accessible at or beyond the proximal end of the guard housing in at least the first position of the needle.
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Abstract
An enclosed needle catheter insertion device (10) includes an elongated needle guard housing (20) and an elongated needle support housing (22). The support housing (22) is received for movement in guard housing (20) to pull needle (24) in from catheter (12) to be enclosed by guard housing (20). Support housing (22) is of sufficient length that a proximal end (42) thereof is accessible at or beyond a proximal end (28) of guard housing (20) even with the needle (24) extended out of catheter (12) for use, so as to allow for access to the fluid path (44) of support housing (22) to needle lumen (49).
141 Citations
35 Claims
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1. An enclosed needle catheter insertion device comprising:
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a catheter having a catheter hub and a catheter tube extending distally from the catheter hub;
an elongated needle guard housing extending between a distal end removably coupled to the catheter hub and a proximal end defining a space therebetween;
an elongated needle support housing telescopingly received within the space of the needle guard housing, the needle support housing having a distal end and a proximal end defining a fluid path therebetween;
a needle extending distally from the support housing distal end and extending through the catheter tube such that a sharp tip of the needle is exposed in a first position of the needle with the distal end of the support housing positioned toward the distal end of the guard housing, the needle being withdrawn from the catheter and enclosed by the guard housing in a second position of the needle with the distal end of the support housing positioned away from the distal end of the guard housing; and
the support housing being elongated sufficiently that a proximal portion thereof is accessible at or beyond the proximal end of the guard housing in at least the first position of the needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A needle guard for a catheter insertion device comprising:
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an elongated needle guard housing extending between a distal end and a proximal end and defining a space therebetween;
an elongated needle support housing telescopingly received within the space of the needle guard housing, the needle support housing having a distal end and a proximal end defining a fluid path therebetween;
a needle extending distally from the support housing distal end and having a sharp tip extending out beyond the distal end of the guard housing in a first position of the needle with the distal end of the support housing positioned toward the distal end of the guard housing, the needle being enclosed by the guard housing in a second position of the needle with the distal end of the support housing positioned away from the distal end of the guard housing; and
the support housing being elongated sufficiently that a proximal portion thereof is accessible at or beyond the proximal end of the guard housing in at least the first position of the needle. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A needle guard for a catheter insertion device comprising:
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an elongated needle guard housing extending between a distal end and a proximal end and defining a space therebetween;
an elongated needle support housing telescopingly received within the space of the needle guard housing, the needle support housing having a distal end and a proximal end defining a fluid path therebetween;
a needle extending distally from the support housing distal end and having a sharp tip extending out beyond the distal end of the guard housing in a first position of the needle with the distal end of the support housing positioned toward the distal end of the guard housing, the needle being enclosed by the guard housing in a second position of the needle with the distal end of the support housing positioned away from the distal end of the guard housing, the needle having a lumen in fluid communication with the fluid path of the support housing; and
the support housing being elongated sufficiently that a proximal portion thereof is spaced closely to the proximal end of the guard housing in at least the first position of the needle so as to provide an elongated flash chamber for improved flashback visual confirmation.
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Specification