Multiple purpose syringe
First Claim
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1. A syringe with a retractable needle comprising an outer tube having a first end and a second end with said first end being opened;
- a releasable secured first gasket means within said outer tube and moveable from a secured position to the second end of the outer tube and then back to the secured position, said first gasket means securing a needle opened at both ends and protruding from one end of said first gasket means towards the first end of the outer tube and protruding from the opposite end of said gasket means toward the second end of said first gasket means;
an inner tube slidably mounted within said outer tube and having a first end and a second end with a second gasket means secured to the first end of the inner tube and said second gasket means can be secured to and release the first gasket means upon contact with and movement of the second gasket means so that said first gasket means can be projected toward the second end of the outer tube whereupon said needle can be extended outside the outer tube and when said second gasket means is retracted it will return the first gasket means to its secured position within said outer tube;
said second gasket means being aligned with the protruding needle from the first gasket means so that said needle is positioned to extend into the inner tube through said second gasket means prior to said second gasket means advancing the first gasket means to the second end of the outer tube;
plunger means positioned within said inner tube having a third gasket means an one end so that when the plunger means is retracted from within said inner tube, the third gasket means will provide a sucking force within said inner tube.
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Abstract
A syringe comprising an outer tube for housing a needle/needle gasket assembly, an inner tube closed at one end by a gasket which cooperated with the needle gasket assembly for advancing and projecting the needle out of the outer tube and retracting the needle into the outer assembly when finished, and wherein the inner tube can function as a container for transporting any fluid drawn into the inner tube. The syringe can also be adapted for multiple extractions of fluid using an evacuation collection tube.
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Citations
19 Claims
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1. A syringe with a retractable needle comprising an outer tube having a first end and a second end with said first end being opened;
- a releasable secured first gasket means within said outer tube and moveable from a secured position to the second end of the outer tube and then back to the secured position, said first gasket means securing a needle opened at both ends and protruding from one end of said first gasket means towards the first end of the outer tube and protruding from the opposite end of said gasket means toward the second end of said first gasket means;
an inner tube slidably mounted within said outer tube and having a first end and a second end with a second gasket means secured to the first end of the inner tube and said second gasket means can be secured to and release the first gasket means upon contact with and movement of the second gasket means so that said first gasket means can be projected toward the second end of the outer tube whereupon said needle can be extended outside the outer tube and when said second gasket means is retracted it will return the first gasket means to its secured position within said outer tube;
said second gasket means being aligned with the protruding needle from the first gasket means so that said needle is positioned to extend into the inner tube through said second gasket means prior to said second gasket means advancing the first gasket means to the second end of the outer tube;
plunger means positioned within said inner tube having a third gasket means an one end so that when the plunger means is retracted from within said inner tube, the third gasket means will provide a sucking force within said inner tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a releasable secured first gasket means within said outer tube and moveable from a secured position to the second end of the outer tube and then back to the secured position, said first gasket means securing a needle opened at both ends and protruding from one end of said first gasket means towards the first end of the outer tube and protruding from the opposite end of said gasket means toward the second end of said first gasket means;
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14. A syringe with a retractable needle comprising an outer tube having a first end and a second end with said first end being opened;
- a releasable secured first gasket means within said outer tube and moveable from a secured position to the second end of the outer tube and then back to the secured position, said first gasket means securing a needle opened at both ends and protruding from one end of said first gasket means towards the first end of the outer tube and protruding from the opposite end of said gasket means toward the second end of said first gasket means;
an inner tube slidably mounted within said outer tube and having a first open end and a second end with a second gasket means secured to the first end of the inner tube and said second gasket means can be secured to and release the first gasket means upon contact with and movement of the second gasket means so that said first gasket means can be projected toward the second end of the outer tube whereupon said needle can be extended outside the outer tube and when said second gasket means is retracted it will return the first gasket means to its secured position within said outer tube; and
wherein said second gasket means being aligned with the protruding needle from the first gasket means so that said needle is positioned to extend into the inner tube through said second gasket means prior to said second gasket means advancing the first gasket means to the second end of the outer tube. - View Dependent Claims (15, 16, 17, 18, 19)
- a releasable secured first gasket means within said outer tube and moveable from a secured position to the second end of the outer tube and then back to the secured position, said first gasket means securing a needle opened at both ends and protruding from one end of said first gasket means towards the first end of the outer tube and protruding from the opposite end of said gasket means toward the second end of said first gasket means;
Specification