Reloadable automatic or manual emergency injection system
First Claim
Patent Images
1. A reloadable fluid medication injection apparatus comprising:
- a barrel having a cavity therein;
a replaceable, disposable syringe subassembly within the barrel and sized to slide within the cavity, the syringe subassembly having an ampule for housing fluid medication, a needle, and a plunger for forcing the fluid medication from the ampule through the needle;
a driver for forcing the syringe subassembly to inject the needle and displace fluid medication through the needle, the driver being movable between a cocked position and extended positions;
a driver release for controllably releasing the driver from the cocked position into an extended position;
a removable stop within the barrel for halting movement of the driver at an extended position, the removable stop being positioned at least partially around the plunger of the syringe subassembly to prevent full discharge movement of the plunger.
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Abstract
A reloadable medicine injection apparatus having a barrel which receives a replaceable, disposable syringe subassembly. The syringe subassembly includes a cartridge having an ampule for housing fluid medication, a needle, and a plunger stopper. The subassembly also has a detachable plunger shaft coupled to the stopper. The reloadable injection apparatus includes a driver for forcing the syringe subassembly to inject the needle and displace fluid medication.
287 Citations
46 Claims
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1. A reloadable fluid medication injection apparatus comprising:
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a barrel having a cavity therein; a replaceable, disposable syringe subassembly within the barrel and sized to slide within the cavity, the syringe subassembly having an ampule for housing fluid medication, a needle, and a plunger for forcing the fluid medication from the ampule through the needle; a driver for forcing the syringe subassembly to inject the needle and displace fluid medication through the needle, the driver being movable between a cocked position and extended positions; a driver release for controllably releasing the driver from the cocked position into an extended position; a removable stop within the barrel for halting movement of the driver at an extended position, the removable stop being positioned at least partially around the plunger of the syringe subassembly to prevent full discharge movement of the plunger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A reloadable fluid medication injection apparatus comprising:
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a barrel having a cavity therein; a replaceable, disposable cartridge within the barrel and sized to slide within the cavity, the cartridge having an ampule for housing fluid medication, a needle, and a stopper for retaining the fluid medication within the ampule; a detachable plunger shaft detachably coupled to the stopper of the cartridge; a driver for forcing the cartridge to inject the needle and for forcing the detachable plunger shaft to displace fluid medication through the needle, the driver being movable between a cocked position and extended positions; a driver release for controllably releasing the driver from the cocked position into an extended position; a removable stop within the barrel for halting movement of the driver at an extended position, tile removable stop being positioned at least partially around the plunger of the cartridge to prevent full discharge movement of the plunger. - View Dependent Claims (13)
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14. A reloadable fluid medication injection apparatus comprising:
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a barrel having a cavity therein; a replaceable, disposable syringe subassembly within the barrel and sized to slide within the cavity, the syringe subassembly having an ampule for housing fluid medication, a needle, and a plunger for forcing the fluid medication from the ampule through the needle; a driver for forcing the syringe subassembly to inject the needle out of the muzzle end of the barrel and displace fluid medication through the needle, the driver being movable between a cocked position and extended positions; a driver release for controllably releasing the driver from the cocked position to an extended position; a removable stop extending within the barrel for halting movement of the plunger at an intermediate position wherein the are pule is not fully discharged so as to allow multiple doses to be administered therefrom; wherein the barrel is made of at least two parts which are manually detachable to allow removal of the removable stop and removal and installation of the syringe subassembly. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A reloadable fluid medication injection apparatus comprising:
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a barrel having a cavity therein; a replaceable, disposable syringe subassembly within the barrel and sized to slide within the cavity, the syringe subassembly having an ampule for housing fluid medication, a needle, and a plunger for forcing the fluid medication from the ampule through the needle; a driver for forcing the syringe subassembly to inject the needle out of the muzzle end of the barrel and displace fluid medication through the needle, the driver being movable between a cocked position and extended positions; a driver release for controllably releasing the driver from the cocked position to an extended position; a removable stop for hailing movement of the driver at an extended position;
said removable stop being positioned at least partially around the plunger of the syringe subassembly to prevent full discharge movement of the plunger. - View Dependent Claims (31)
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32. A dual use fluid medication injection apparatus capable of both mechanically powered administration and manual administration of a fluid medication, comprising:
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a barrel having a cavity therein; a manually usable syringe subassembly positioned within the barrel and sized to slide within the cavity, the syringe subassembly having; an ampule for housing fluid medication; a needle in fluid communication with said ampule; a plunger for forcing the fluid medication from the ampule through the needle;
said plunger including a plunger shaft and a plunger portion which extends from the ampule to allow manual depression of the plunger to dispense fluid from the ampule;said barrel including at least a first part and a second part which are manually detachable to allow removal and installation of the syringe subassembly; a driver for forcing the syringe subassembly to inject the needle and displace fluid medication through the needle, the driver being movable between a cocked position and extended positions; said plunger being unattached to said driver to allow removal of said syringe subassembly from the barrel while in cocked or extended positions; a driver release for controllably releasing the driver from the cocked position into an extended position. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification