Fluid dispenser
First Claim
1. A fluid dispensing device for dispensing a measured amount of fluid in a membrane into a living organism, the device having a needle having a first proximal end and a second distal end and a septum-stop, the needle interfacing, on the first proximal end, with a septum, and at the second distal end thereof, the needle free to translate in a first direction during which translation the needle is deformed through a guide which bends the needle at its distal end as the needle translates through the guide and, when in its operational position, the needle is positioned for subcutaneous insertion, and wherein the first proximal end of the needle is lodged into the septum-stop after piercing the septum, thereby ensuring that the membrane does not expand and so does not aspirate, and wherein further the needle is malleable such that it deforms during injection so as to function only for a single use.
3 Assignments
0 Petitions
Accused Products
Abstract
A fluid dispensing device is provided for dispensing a measured amount of fluid into a living organism. The device has a needle having a first end and a second end. The needle is adapted for interfacing, on the first end, with a septum of a flexible hollow membrane, and at a second end thereof, for subcutaneously inserting into a living organism. The needle is guided by a guide to permit an injection into the living organism at a substantially non-orthogonal angle with respect to a surface of the living organism. The first and second ends of the needle pierce their respective piercing surface while translating together in a common direction. In other embodiments, the dispensing device includes a main housing, a flexible fluid reservoir, an injection assembly and a trigger mechanism. The main housing houses the operative components of the device.
14 Citations
8 Claims
- 1. A fluid dispensing device for dispensing a measured amount of fluid in a membrane into a living organism, the device having a needle having a first proximal end and a second distal end and a septum-stop, the needle interfacing, on the first proximal end, with a septum, and at the second distal end thereof, the needle free to translate in a first direction during which translation the needle is deformed through a guide which bends the needle at its distal end as the needle translates through the guide and, when in its operational position, the needle is positioned for subcutaneous insertion, and wherein the first proximal end of the needle is lodged into the septum-stop after piercing the septum, thereby ensuring that the membrane does not expand and so does not aspirate, and wherein further the needle is malleable such that it deforms during injection so as to function only for a single use.
-
8. A method of subcutaneously administering a fluid to a living organism, the method, using the fluid dispensing device having a needle having a first proximal end and a second distal end and a septum-stop, the needle adapted for interfacing, on the first proximal end, with a septum, and at the second distal end thereof, for subcutaneously inserting into a living organism while translating in a first direction during which translation the needle is deformed through a guide which bends the needle at its distal end as the needle translates through the guide, the method including the steps of:
-
a. the second end of needle travels through the guide which deforms the needle as the needle travels at least 2 mm into skin of the living organism; b. first end of the needle penetrates through a septum in a fluid reservoir; c. the needle is filled with fluid; d. a prescribed amount of fluid is injected into the living organism at a prescribed depth of skin penetration; e. the needle further translates causing fluid flow to be blocked as the first end of the needle penetrates into the septum-stop; f. the needle is retracted from the living organism into an enclosed space; and g. the fluid dispensing device is disposed of.
-
Specification