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US 6,585,693 B1Granted
Blister syringe with optional bifurcated guard
OwnerLouis Dischlerinventor
Life of this patent
Estimating the term…
Abstract
The present invention provides a unitary syringe having a mounted needle surrounded by a sheath having a break-zone. The fluid medicament to be injected is contained within a blister cavity formed between upper and lower polymeric layers. Accidental needle sticks are reduced by optional guard fingers surrounding the needle. These fingers extend past the and bracket the sharpened end of the needle.
Claims28
A syringe for use with a target surface to be injected, comprising:
- a needle comprising a sharpened distal end, a proximal end, and a fluid channel therebetween;
- a primary cavity in fluid communication with said fluid channel, said primary cavity comprising at least one deformable wall;
- a first flexible guard comprising a first base and a first tip, said first base substantially fixed relative to said needle, and said first tip extending past said sharpened distal end;
- and
- a second flexible guard comprising a second base and a second tip, said second base substantially fixed relative to said needle, and said second tip extending past said sharpened distal end;
- wherein said sharpened distal end resides substantially between and behind said first tip and said second tip when the syringe is not in use;
- and
- wherein said first tip and said second tip make contact the with target surface to be injected prior to said sharpened distal end when the syringe is in use.
5 more elements
A syringe, comprising:
- a needle comprising a sharpened distal end, a proximal end, and a fluid channel therebetween;
- a primary cavity in fluid communication with said fluid channel, said primary cavity comprising a first flexible polymeric layer and a second polymeric layer forming said primary cavity therebetween;
- a needle sheath, said needle sheath comprising a closed or sealed distal sheath end and an open proximal sheath end, said needle sheath enclosing said needle, said open proximal end sealed to said proximal end of said needle with a first fluid tight seal;
- a first break-zone located in said needle sheath, whereby twisting of said distal sheath end of said needle sheath separates said sheath from the syringe to expose said sharpened end of said needle;
- a first flexible guard comprising a first base and a first tip, said first base substantially fixed relative to said needle, and said first tip extending past said sharpened distal end;
- and
- a second flexible guard comprising a second base and a second tip, said second base substantially fixed relative to said needle, and said second tip extending past said sharpened distal end;
- wherein said sharpened distal end resides substantially in a first plane with said first flexible guard and said second flexible guard when the syringe is not in use.
5 more elements
A syringe, comprising:
- a body comprising an upper layer and a lower layer;
- a needle comprising an axis, a sharpened distal end, a proximal end, and a fluid channel along said axis, said proximal end sealed to said body;
- a primary cavity between said upper and lower layers, wherein said primary cavity is in fluid communication with said fluid channel of said needle;
- and
- a first flexible guard comprising a first base and a first tip, said first base substantially fixed relative to said needle, and said first tip extending past said sharpened distal end;
- a second flexible guard comprising a second base and a second tip, said second base substantially fixed relative to said needle, and said second tip extending past said sharpened distal end;
- and
- wherein said sharpened distal end resides substantially between and behind said first tip and said second tip when the syringe is not in use.
5 more elements
A syringe, comprising:
- a syringe body;
- a hollow needle comprising a sharpened tip and a base, said base fixed to said syringe body;
- a fluid chamber within said syringe base, wherein said fluid chamber is in fluid communication with said needle;
- and
- a bifurcated guard extending from said syringe body, said bifurcated guard comprising first and second tips that extend past said sharpened end of said needle, said first and second tips lying on either side of said needle in a first plane.
2 more elements
Dependencies are inferred from the claim text.