Fluid Infusion Device
First Claim
1. An fluid infusion device, comprising:
- a body, comprising an activation button;
a base, slidably receiving said activation button; and
a hollow cannula tubing member having an introducer needle portion and a spring portion,wherein said activation button is slidable to insert said introducer needle portion of said tubing member into a body of a user and activate said spring portion of said tubing member, and upon insertion,release said spring portion of said tubing member to retract said introducer needle portion of said tubing from said body of said user.
1 Assignment
0 Petitions
Accused Products
Abstract
A fluid infusion device is provided with a cannula spring which functions as an introducer needle, a retraction return spring, and a fluid path. A hollow cannula tubing is wound, bent and sharpened into a shape which allows it to operate as an introducer needle, retraction spring and fluid path in an infusion device. A button is used to insert the introducer needle portion of the cannula spring and a soft catheter, and once the introducer needle portion and catheter have been fully inserted, an engagement between the button and post of the base of the infusion device releases the cannula spring such that the introducer needle portion of the cannula spring automatically retracts, leaving the catheter in the body. An end of the introducer needle portion of the cannula spring remains in fluid communication with the catheter in the body to provide an uninterrupted fluid path.
15 Citations
10 Claims
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1. An fluid infusion device, comprising:
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a body, comprising an activation button; a base, slidably receiving said activation button; and a hollow cannula tubing member having an introducer needle portion and a spring portion, wherein said activation button is slidable to insert said introducer needle portion of said tubing member into a body of a user and activate said spring portion of said tubing member, and upon insertion, release said spring portion of said tubing member to retract said introducer needle portion of said tubing from said body of said user. - View Dependent Claims (2, 3, 4, 5)
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6. An fluid infusion device, having a body and an activation button, and a base slidably receiving said activation button, comprising:
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a hollow cannula tubing member having an introducer needle portion and a spring portion, wherein said introducer needle portion of said tubing member is moveable in a first direction as said spring portion of said tubing member is activated, and said spring portion of said tubing member is expandable to move said introducer needle portion of said tubing in a second direction as said spring portion of said tubing member is expanded. - View Dependent Claims (7)
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8. An fluid infusion device, having a body and an activation button, and a base slidably receiving said activation button, comprising:
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a hollow cannula tubing member having an introducer needle portion and a spring portion, wherein said introducer needle portion of said tubing member is moveable in a first direction as said spring portion of said tubing member is activated, and said spring portion of said tubing member is expandable to move said introducer needle portion of said tubing in a second direction as said spring portion of said tubing member is expanded; and a catheter disposed upon said introducer needle portion of said tubing member for insertion by said introducer needle portion of said tubing member into a body of a user. - View Dependent Claims (9, 10)
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Specification