Disposable self-shielding hypodermic syringe
First Claim
1. A butterfly wing IV catheter comprising a body member having laterally extending tabs to help hold the catheter in place for an extended period of time, the body member having an opening therethrough and a slot in a wall of the body member having first and second spaced pockets, anda slide member configured to fit and slide within the opening in the body member and comprising a needle and a hollow fitting to which flexible tubing can be attached, the slider member including a boss adapted to fit into the first and second pockets of the body member to define respective extended and retracted positions of the needle, and wherein when the needle is retracted the hollow fitting extends outwardly from the opening in the body member and wherein when the needle is extended the hollow fitting is adapted to pull flexible tubing into an end of the opening of the body member.
1 Assignment
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Accused Products
Abstract
There are disclosed herein medical syringe and catheter devices which preferably can be disposable and non-reusable and which have features to minimize users from accidentally stabbing themselves before or after use. They comprise relatively slidable members for covering and uncovering a needle. A butterfly wing IV catheter is disclosed including a body having laterally extending tabs to help hold the catheter in place, along with a slide member configured to fit and slide within an opening in the body member and which member includes a needle and a hollow fitting for receiving flexible tubing. The slider member includes a boss adapted to fit within pockets of the body member to define respective extended and retracted positions of the needle.
122 Citations
6 Claims
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1. A butterfly wing IV catheter comprising a body member having laterally extending tabs to help hold the catheter in place for an extended period of time, the body member having an opening therethrough and a slot in a wall of the body member having first and second spaced pockets, and
a slide member configured to fit and slide within the opening in the body member and comprising a needle and a hollow fitting to which flexible tubing can be attached, the slider member including a boss adapted to fit into the first and second pockets of the body member to define respective extended and retracted positions of the needle, and wherein when the needle is retracted the hollow fitting extends outwardly from the opening in the body member and wherein when the needle is extended the hollow fitting is adapted to pull flexible tubing into an end of the opening of the body member.
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3. A butterfly wing IV catheter comprising a body member having laterally extending tabs to help hold the catheter in place for an extended period of time, the body member having an opening therethrough and a slot in a wall of the body member having first and second spaced pockets,
a slide member configured to fit and slide within the opening in the body member and comprising a needle and a hollow fitting to which flexible tubing can be attached, the slider member including a boss adapted to fit into the first and second pockets of the body member to define respective extended and retracted positions of the needle, and wherein when the needle is retracted the hollow fitting extends outwardly from the opening in the body member and wherein when the needle is extended the hollow fitting is adapted to pull flexible tubing into an end of the opening of the body member, and wherein the body member includes a slot extending between the first and second spaced pockets and includes protrusions adjacent to and defining the first and second spaced pockets, the boss of the slider member extends into the slot and includes an inclined surface on a proximal side thereof which can wedge under the respective protrusions such that when the boss is forced rearward, protrusions flex outward allowing the boss to move rearward past the protrusions and into the second spaced pocket to retain the needle in the retracted position thereof.
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5. A butterfly wing IV catheter comprising a body member having laterally extending tabs to help hold the catheter in place for an extended period of time, the body member having an opening therethrough and a slot in a wall of the body member having first and second spaced pockets,
a slide member configured to fit and slide within the opening in the body member and comprising a needle and a hollow fitting to which flexible tubing can be attached, the slider member including a boss adapted to fit into the first and second pockets of the body member to define respective extended and retracted positions of the needle, and wherein when the needle is retracted the hollow fitting extends outwardly from the opening in the body member and wherein when the needle is extended the hollow fitting is adapted to pull flexible tubing into an end of the opening of the body member, wherein the needle has a bevel at the outer end thereof, the body member has rectangular inner cross-section and the slider member has a rectangular outer cross-section, and wherein said inner and outer cross-sections interact to prevent rotation of the slider member within the body member and thus maintain a desired orientation of the needle bevel, and wherein the body member includes a slot extending between the first and second spaced pockets and includes protrusions adjacent to and defining the first and second spaced pockets, the boss of the slider member extends into the slot and includes an inclined surface on a proximal side thereof which can wedge under the respective protrusions such that when the boss is forced rearward, protrusions flex outward allowing the boss to move rearward past the protrusions and into the second spaced pocket to retain the needle in the retracted position thereof.
Specification