Right angle safety needle
First Claim
1. Apparatus, comprising:
- a base planarly contacting the skin of a patient, said base having a distal end and a proximal end;
an opening provided at said distal end of said base;
a catch provided adjacent said opening on said base;
a needle pivotable relative to said proximal end of said base having a first portion positioned axially along the length of said base in a first position, and a second portion continuing from and substantially orthogonal to said first portion having a tip extending through said opening of said base in said first position;
wherein when said needle is pivotably moved relative to said proximal end of said base to a second position, said first portion of said needle is moved to a predetermined position at an angle relative to said base and said second portion of said needle is withdrawn through said opening of said base with said tip being retained in said catch.
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0 Petitions
Accused Products
Abstract
A right angle safety needle has a base to which an arm is hingedly mounted at a proximal portion. The base has an opening at its distal portion wherethrough the vertical portion of the right angle needle extends. A well is formed adjacent the opening and a dam is provided on the side of the well away from the opening. To retract the needle from the opening, the horizontal portion of the needle, which may be encased in an arm, is rotated about the upright to which it is hingedly connected so that the needle is pivoted upwards and withdrawn from the opening. Once the tip of the needle clears the opening, due to the tip of the needle being offset from the body of the needle and the fact that the needle tends to flex forward, the tip of the needle is entrapped in the well adjacent to the opening. The dam forward of the well provides a backstop for any further forward movement of the tip of the needle, thereby fixedly retaining the needle within the well. Stops are provided in the device, at its arm and base, to prevent the needle from being further moved relative to the base once the tip of the needle is entrapped in the well of the base.
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Citations
18 Claims
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1. Apparatus, comprising:
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a base planarly contacting the skin of a patient, said base having a distal end and a proximal end;
an opening provided at said distal end of said base;
a catch provided adjacent said opening on said base;
a needle pivotable relative to said proximal end of said base having a first portion positioned axially along the length of said base in a first position, and a second portion continuing from and substantially orthogonal to said first portion having a tip extending through said opening of said base in said first position;
wherein when said needle is pivotably moved relative to said proximal end of said base to a second position, said first portion of said needle is moved to a predetermined position at an angle relative to said base and said second portion of said needle is withdrawn through said opening of said base with said tip being retained in said catch. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. A safety needle device, comprising a base having an aperture through which one portion of a L-shaped needle having a sharp tip extends, said base having at least one upright to which an other portion of said L-shaped needle is hingedly connected so that said needle is rotatable about said upright relative to said base, said one portion of said needle being positioned in parallel along the length of said base and said other portion of said needle being positioned orthogonal to said base with said sharp tip extending below said base in a first position, said one portion of said needle being positioned at an angle to said base and said other portion of said needle being withdrawn from said aperture of said base when said needle is rotated about said upright to a second position.
- 15. In combination, a base for contacting the skin of a patient having an upright at a proximal end and an aperture at a distal end, a L-shaped needle having one portion encased in an arm pivotably connected to said upright and an other portion having a tip for piercing the skin of the patient extending through said aperture in a first position, a well provided at said base adjacent said aperture at said distal end of said base for receiving and retaining said tip when said needle is pivoted to a second position whereby said one portion of said needle is positioned at a predetermined angle relative to said base and said other portion of said needle is withdrawn from said aperture, a dam at said base proximate to said well for preventing said tip of said needle from moving beyond said well when said needle is moved to said second position, and stop means at said arm and said base for preventing further movement of said needle relative to said base once said other portion of said needle is withdrawn from said aperture and said tip is retained in said well.
Specification