US 5,779,679 AGranted

Winged IV set with retractable needle

OwnerThomas J. Shawinventor

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Abstract

The present invention addresses a winged IV set having a retractable needle which provides additional safety to health care workers from accidental needle sticks. The winged IV set would consist of a device body with two sets of wings, one for handling and one for retraction, a needle, a needle holder with a nipple extension which may be connected with the catheter or IV tube, and a spring. The needle holder has opposed U-shaped arms which terminate in lugs that are received in opposed openings in the device body. The pair of retraction wings have a corresponding pair of tabs such that when the wings are folded, the tabs push the lugs out of the openings, allowing the spring to drive the needle and the needle holder back into the device body where another set of openings in the body receive the lugs on the needle holder to retain the needle inside the body. After retraction the device body may be handled safely.

Claims17

Dependent claims

A medical device for temporarily establishing venous fluid communication between a patient and a source of fluid comprising:

an elongated hollow body having a longitudinally extended wall defining a cavity therein, the body having a front end portion, a back end portion, and a middle portion extending between the end portions;
a sliding needle holder configured to fit within the cavity and slide backwards from a forward locked position, the needle holder having a centrally positioned tubular connection having a front portion capable of holding a needle and a rear portion capable of receiving an end of a tubular fluid connection;
the middle portion of the elongated body having at least one laterally extending opening near the front end portion of the body which is adapted to receive a lug;
the sliding needle holder having at least one springing arm terminating in a lug which in an unlocked position allows the needle holder to slide within the cavity, the sliding needle holder being positionable in the forward locked position wherever the lug on the springing arm engages the lug receiving opening near the front end portion of the elongated body to hold the sliding needle holder in position for insertion of a needle extending from the front end portion of the body;
and,
a bendably attached lateral extension of the body having a tab oriented to engage and release the lug from the laterally extending opening near the front end portion of the elongated body to permit the needle holder to be driven rearwardly by a spring thereby retracting the needle within the elongated body.

3 more elements

A winged IV set comprising:

a device body having a front end, a back end, a middle portion comprising a longitudinally extended wall, and a hollow portion between the front and back ends and bounded by the wall of the middle portion;
a pair of approximately opposing handling wings extending from the longitudinally extended wall of the middle portion of the device body;
a needle holder within the hollow portion of the device body;
at least one arm extending from the needle holder;
the arm terminating in a lug;
a needle extending outwardly from the needle holder in the direction of the front end of the device body;
a resilient member in contact with the device body and the needle holder and positioned to create a biasing force on the needle holder away from the front end of the device body;
a shoulder in the wall of the middle portion of the device body positioned to receive the lug to oppose the biasing force of the resilient member and to restrain the needle holder from moving away from the front end of the device body;
at least one retraction wing extending from the wall of the middle portion at a point adjacent to where the shoulder receives the lug;
and,
a tab coupled to the retraction wing positioned such that when the retraction wing is appropriately moved the tab pushes the lug off of the shoulder releasing the needle holder to respond to the bias of the resilient member.

8 more elements

A winged IV set comprising:

a device body having a front end, a back end, a middle portion comprising a longitudinally extended wall, and a hollow portion between the front and back ends and bounded by the wall of the middle portion;
a pair of approximately opposing handling wings extending from the wall of the middle portion of the device body;
a needle holder within the hollow portion of the device body;
a pair of approximately opposing arms extending from the needle holder;
each of the pair of approximately opposing arms terminating in a lug;
a needle extending outwardly from the needle holder in the direction of the front end of the device body;
a spring in contact with the device body and the needle holder and positioned to create a biasing force on the needle holder away from the front end of the device body;
a pair of approximately opposing shoulders in the wall of the middle portion of the device body, each positioned to receive one of the lugs to oppose the biasing force of the spring and to restrain the needle holder from moving away from the front end of the device body;
a pair of approximately opposing retraction wings, each extending from the wall of the middle portion at a point adjacent to where one of the pair of approximately opposing shoulders receives one of the lugs;
and,
each of the approximately opposing retraction wings having a tab coupled to the retraction wing and positioned such that when the retraction wing is folded towards the other of the retraction wings, the tab pushes one of the lugs off of one of the shoulders releasing the needle holder to respond to the bias of the spring.

8 more elements

Dependencies are inferred from the claim text.