Delivery system for injections throughout zone of body
First Claim
1. A distributed injection device, comprisinga needle, said needle having an attachment end and an injection end, said needle having a needle outer diameter, and said needle having an internal cross-sectional area, said needle having a needle longitudinal axis;
- a housing including a needle-receiving member, said needle-receiving member being tubular, said needle-receiving member having an open first end, said needle-receiving member having a needle-receiving member inner diameter, said needle-receiving member inner diameter greater than said needle outer diameter, said needle-receiving member having a needle-receiving member longitudinal axis, said needle longitudinal axis and said needle-receiving member longitudinal axis generally parallel, said needle-receiving member circumscribing said needle longitudinal axis;
a reservoir adapted to contain a therapeutic agent, said therapeutic agent reservoir in fluid communication with said needle via a tubing, said therapeutic agent reservoir positioned within said housing;
a second reservoir adapted to contain fluid;
a reservoir-connecting conduit, said reservoir-connecting conduit in communication with said therapeutic agent reservoir;
a bidirectional fluid drive in communication with said fluid in said second reservoir, said bidirectional fluid drive in communication with said reservoir-connecting conduit; and
a linear drive associated with said needle or said needle-receiving member;
said linear drive adapted to provide a linear displacement of said needle towards said housing, or to provide a linear displacement of said needle-receiving member away from said housing;
a computer in communication with said bidirectional fluid drive and with said linear drive;
wherein said bidirectional fluid drive adapted to impel fluid from said second reservoir to said reservoir-connecting conduit and to drive said therapeutic agent from said therapeutic agent reservoir after said linear displacement of said needle towards said housing; and
wherein said fluid communication from said therapeutic agent reservoir to said needle is maintained by said tubing during operation of said linear drive to provide a linear displacement of said needle towards said housing, or to provide a linear displacement of said needle-receiving member away from said housing.
1 Assignment
0 Petitions
Accused Products
Abstract
A dispensing device which disperses medicate through a needle across a zone within a body. The device includes a needle which is, during use, becomes encapsulated within a tubular needle-receiving member, a reservoir in fluid communication with the needle, positioned within the housing, and in communication with the needle, a second reservoir, a reservoir-connecting conduit in communication with the reservoir, a fluid drive in communication with the fluid in the second reservoir and in communication with the reservoir-connecting conduit, and a linear drive attached to the needle or to the needle-receiving member. The fluid drive impel fluids from the second reservoir to the reservoir-connecting conduit and thus drives the therapeutic agent from the reservoir during the linear displacement of the needle towards the housing. Fluid communication from the therapeutic agent reservoir to the needle is maintained by the tubing during operation of the linear drive.
1 Citation
6 Claims
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1. A distributed injection device, comprising
a needle, said needle having an attachment end and an injection end, said needle having a needle outer diameter, and said needle having an internal cross-sectional area, said needle having a needle longitudinal axis; -
a housing including a needle-receiving member, said needle-receiving member being tubular, said needle-receiving member having an open first end, said needle-receiving member having a needle-receiving member inner diameter, said needle-receiving member inner diameter greater than said needle outer diameter, said needle-receiving member having a needle-receiving member longitudinal axis, said needle longitudinal axis and said needle-receiving member longitudinal axis generally parallel, said needle-receiving member circumscribing said needle longitudinal axis; a reservoir adapted to contain a therapeutic agent, said therapeutic agent reservoir in fluid communication with said needle via a tubing, said therapeutic agent reservoir positioned within said housing; a second reservoir adapted to contain fluid; a reservoir-connecting conduit, said reservoir-connecting conduit in communication with said therapeutic agent reservoir; a bidirectional fluid drive in communication with said fluid in said second reservoir, said bidirectional fluid drive in communication with said reservoir-connecting conduit; and a linear drive associated with said needle or said needle-receiving member; said linear drive adapted to provide a linear displacement of said needle towards said housing, or to provide a linear displacement of said needle-receiving member away from said housing; a computer in communication with said bidirectional fluid drive and with said linear drive; wherein said bidirectional fluid drive adapted to impel fluid from said second reservoir to said reservoir-connecting conduit and to drive said therapeutic agent from said therapeutic agent reservoir after said linear displacement of said needle towards said housing; and wherein said fluid communication from said therapeutic agent reservoir to said needle is maintained by said tubing during operation of said linear drive to provide a linear displacement of said needle towards said housing, or to provide a linear displacement of said needle-receiving member away from said housing. - View Dependent Claims (2)
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3. A method for a distributed injection into a body from a reservoir of therapeutic agent, comprising:
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driving a needle into said body, said needle having an internal cross-sectional area; retracting said needle from said body by a linear drive into a housing including a needle receiving member, said needle being encapsulated by said needle-receiving member during retraction; impelling fluid from a second reservoir through a reservoir-connecting conduit to a therapeutic agent reservoir containing said therapeutic agent; commencing impelling said therapeutic agent from said therapeutic agent reservoir to said needle by displacement by said fluid after retracting said needle from said body; and delivering said therapeutic agent from said needle into said body after commencing impelling said therapeutic agent from said therapeutic agent reservoir.
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4. A method for a distributed injection into a body from a reservoir of therapeutic agent, comprising:
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positioning a needle of a distributed injection device in a first position fully extended from a housing of the distributed injection device; filling the reservoir in fluid communication with the needle via a tubing, the reservoir filled from a second reservoir in communication with the reservoir via a connecting conduit; filling the reservoir with the therapeutic agent via the needle by removing a portion of the fluid, the needle in fluid communication with a container of the therapeutic agent; positioning the distributed injunction device in the body; dispensing a predetermined volume of the therapeutic agent; retracting the needle to a distance from the outer edge of the body, the distance being a whole-number multiple of a selected distance; repeating the steps of dispensing the predetermined volume of the therapeutic agent and of retracting the needle. - View Dependent Claims (5, 6)
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Specification