Method and apparatus for applying an anesthetic and batericide
First Claim
1. An injection apparatus comprising:
- a syringe, said syringe including an outer wall having a hollow interior, an upper end and a lower end, an injection needle extending from said lower end, a plunger received in said hollow interior for forcing liquid from said hollow interior through said injection needle, an adjunctive chamber sized to receive a canister, said adjunctive chamber attached to said syringe, said canister having a compressed endothermic gas therein, an actuating member for dispensing contents from the canister, and an outlet nozzle for dispensing contents from said canister along a delivery axis that intersects a delivery axis of said injection needle.
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Accused Products
Abstract
A method and an apparatus for applying an anesthetic includes a receptacle having an upper end, a substantially hollow interior, a lower end having a tube or nozzle extending therefrom and an attachment for attaching to the barrel of a syringe or vice versa. The receptacle receives a container or canister containing an endothermic gas or vapor (propellant) that rapidly absorbs heat when released to the atmosphere. A depressible actuating member or trigger propels the gas or vapor through an outlet nozzle that is oriented to project a stream of gas or vapor along a delivery axis that intersects a delivery axis of the needle; therefore, the gas or vapor can be successively delivered to an injection site with minimal repositioning of the housing.
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Citations
7 Claims
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1. An injection apparatus comprising:
- a syringe, said syringe including an outer wall having a hollow interior, an upper end and a lower end, an injection needle extending from said lower end, a plunger received in said hollow interior for forcing liquid from said hollow interior through said injection needle, an adjunctive chamber sized to receive a canister, said adjunctive chamber attached to said syringe, said canister having a compressed endothermic gas therein, an actuating member for dispensing contents from the canister, and an outlet nozzle for dispensing contents from said canister along a delivery axis that intersects a delivery axis of said injection needle.
- View Dependent Claims (2, 3, 4)
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5. A syringe comprising:
- an elongated tubular housing having an outer wall, a substantially hollow interior, an upper end and a lower end;
an injection needle extending from the lower end of the housing;
an adjunctive chamber or receptacle secured to said tubular housing;
a canister received within said adjunctive chamber or receptacle, said canister having a compressed, endothermic gas or vapor therein that rapidly absorbs heat when released to the atmosphere;
means for dispensing a pharmaceutical composition through said injection needle;
an outlet nozzle in fluid communication with said canister;
means for dispensing said gas or vapor through an outlet nozzle. - View Dependent Claims (6, 7)
- an elongated tubular housing having an outer wall, a substantially hollow interior, an upper end and a lower end;
Specification