Safety needle system operable with a medical device
First Claim
1. A safety needle system operable with a medical device, comprising:
- a housing including a needle mount;
a needle having a distal end insertable through the medical device and a proximal end coupled to the needle mount, wherein the medical device comprises a catheter with a catheter hub and the needle is insertable through both the catheter and the catheter hub;
a sheath telescopically engaged with the housing and circumferentially surrounding at least a portion of the needle, wherein the sheath operates in;
a retracted position that exposes the distal end of the needle; and
an extended position, wherein the sheath substantially surrounds the distal end of the needle;
wherein the sheath is coupleable to the medical device such that removal of the needle from the medical device transitions the sheath from the retracted position to the extended position;
wherein a first inner surface and a second inner surface at a distal end of the sheath are configured to engage a first projection and a second projection on the medical device;
wherein the sheath has a first configuration wherein the inner surfaces are inhibited from moving apart and a second configuration wherein the inner surfaces are permitted to move apart to facilitate disengagement from the first and second projections; and
a locking mechanism located within the sheath or the housing, the locking mechanism configured to lock the sheath in the extended position, wherein the locking mechanism is configured to abut a portion of the sheath against a portion of the housing, thereby locking the sheath in the extended position.
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0 Petitions
Accused Products
Abstract
A safety needle system operable with a medical device includes: a housing with a needle mount having a needle; and a sheath telescopically engaged with the housing and surrounding the needle such that the sheath operates in a retracted position, in which the sheath exposes the needle, and an extended position, in which the sheath surrounds the needle. The sheath is coupleable to the medical device such that removal of the needle from the medical device draws the sheath over the needle, transitioning the sheath from the retracted position to the extended position. In one embodiment, the system includes a slider engaged with the sheath and/or housing and including a restraint that engages and disengages the sheath to respectively reinforce and weaken the coupling of the sheath and medical device. In another embodiment, the sheath includes a longitudinal track that slidingly engages a setting of the housing between sheath positions.
810 Citations
17 Claims
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1. A safety needle system operable with a medical device, comprising:
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a housing including a needle mount; a needle having a distal end insertable through the medical device and a proximal end coupled to the needle mount, wherein the medical device comprises a catheter with a catheter hub and the needle is insertable through both the catheter and the catheter hub; a sheath telescopically engaged with the housing and circumferentially surrounding at least a portion of the needle, wherein the sheath operates in; a retracted position that exposes the distal end of the needle; and an extended position, wherein the sheath substantially surrounds the distal end of the needle; wherein the sheath is coupleable to the medical device such that removal of the needle from the medical device transitions the sheath from the retracted position to the extended position; wherein a first inner surface and a second inner surface at a distal end of the sheath are configured to engage a first projection and a second projection on the medical device; wherein the sheath has a first configuration wherein the inner surfaces are inhibited from moving apart and a second configuration wherein the inner surfaces are permitted to move apart to facilitate disengagement from the first and second projections; and a locking mechanism located within the sheath or the housing, the locking mechanism configured to lock the sheath in the extended position, wherein the locking mechanism is configured to abut a portion of the sheath against a portion of the housing, thereby locking the sheath in the extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification