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;
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; and
a slider, longitudinally engaged with at least one of the sheath and the housing and including a restraint, wherein the restraint comprises a first configuration that facilitates coupling of the sheath to the medical device in the retracted position, and a second configuration that weakens coupling of the sheath to the medical device in the extended position.
8 Assignments
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.
302 Citations
19 Claims
-
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; 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; and a slider, longitudinally engaged with at least one of the sheath and the housing and including a restraint, wherein the restraint comprises a first configuration that facilitates coupling of the sheath to the medical device in the retracted position, and a second configuration that weakens coupling of the sheath to the medical device in the extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A system operable with a medical device, comprising:
-
a housing including a needle mount and a chamber; a needle having a distal end insertable through the medical device and a proximal end coupled to the needle mount, the needle comprising a lumen in fluid communication with the chamber of the housing to transmit fluid to the chamber; 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 that 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; and a slider, longitudinally engaged with at least one of the sheath and the housing and including a restraint, wherein the restraint comprises a set of restraint tabs that interact with a distal portion of the sheath in a first configuration that reinforces coupling of the system to the medical device in the retracted position, and wherein the set of restraint tabs provide a second configuration that facilitates weakened coupling of the system to the medical device in the extended position. - View Dependent Claims (12, 13, 14)
-
-
15. A method for covering a needle, the method comprising:
-
providing a system used with a medical device, wherein the system includes a housing to which the needle is coupled, and a sheath that is telescopically engaged with the housing and that operates in a retracted position that exposes a distal end of the needle and in an extended position that covers the distal end of the needle; providing a set of restraint tabs configured to facilitate coupling of a distal portion of the sheath with the medical device, producing reinforced coupling between the distal portion of the sheath and the medical device, with a first configuration of the set of restraint tabs, in the retracted position; transmitting the needle, through a distal portion of the sheath and the medical device, into a patient, thereby facilitating coupling of the medical device to the patient; allowing the housing to be pulled away from the medical device in a proximal direction, thereby retracting the needle from the medical device while maintaining coupling of the medical device to the patient; allowing the sheath to slide in a distal direction towards the extended position, thereby drawing the sheath into the extended position; producing weakened coupling between the distal portion of the sheath and the medical device, with a second configuration of the set of restraint tabs, in the extended position; fixing the sheath in the extended position; and allowing uncoupling of the medical device from the system with the needle covered. - View Dependent Claims (16, 17, 18, 19)
-
Specification