Injection apparatus and method for use
AssigneepHi-Tech Animal Health Technologies Ltd.
InventorsGershon Goldenberg, Asaf Halamish, Jonathan M. Bendheim, Avner Finger, Udi Ashash
Life of this patent
Estimating the term…
Abstract
Disclosed devices for injection of medicament to a subject can include a hand-held unit, at least one control unit, and one or more medicament chambers fluidly coupled to the control unit. The hand-held unit having a head portion and a body portion, the head portion comprising at least one needle and a movable head, the movable head being axially movable relative to the body portion between an extended position and a retracted position. The control unit being fluidly coupled to the hand-held unit and having a pump having a dosing chamber.
Claims25
An injection apparatus, comprising:
- a hand-held unit having a body portion and a head portion removably coupled to the body portion, the head portion comprising at least one needle;
- and
- at least one control unit remote from the hand-held unit and fluidly coupled to the hand-held unit via one or more connecting tubes, the at least one control unit comprising a pump having a piston.
An injection apparatus, comprising:
- a hand-held unit having a first pump comprising a first piston, a dosing chamber, and a head portion comprising at least one needle;
- and
- a second pump remote from the hand-held unit, the second pump comprising a second piston operatively coupled to the first piston via an actuator such that movement of the second piston causes corresponding movement of the first piston.
An injection apparatus, comprising:
- a hand-held unit having a head portion comprising at least one needle;
- a control unit remote from the hand-held unit and fluidly coupled to the hand-held unit via one or more connecting tubes;
- and
- a pump disposed within the control unit, the pump comprising:
- a dosing chamber;
- a first valve having an inlet, a first opening, a first biasing member, and a first stopper, the first biasing member movable between a biased position wherein the first stopper occludes the first opening and an open position wherein the first stopper does not occlude the first opening;
- a second valve having an outlet, a second opening, a second biasing member, and a second stopper, the second biasing member movable between a biased position wherein the second stopper occludes the second opening and an open position wherein the second stopper does not occlude the second opening;
- and
- a piston extending into the dosing chamber and being movable relative to the dosing chamber between a first position and a second position, the piston being configured to reduce pressure within the dosing chamber when the piston moves from the first position to the second position, the reduced pressure being sufficient to move the first biasing member from the biased position to the open position, and the piston being configured to create a positive pressure within the dosing chamber when the piston moves from the second position to the first position, the positive pressure being sufficient to move the second biasing member from the biased position to the open position.
A method, comprising:
- positioning a head portion of a hand-held unit against a skin surface of a subject, the head portion comprising a movable head configured to move axially relative to a body portion of the hand-held unit between an extended configuration wherein a distal point of a needle is covered and a retracted configuration wherein the distal point of the needle is exposed;
- urging the movable head against the skin surface to move the movable head into the retracted configuration such that the distal point of the needle is inserted into the subject;
- and
- automatically administering a medicament using at least one control unit remote from the hand-held unit when the distal point of the needle has reached a selected depth within the subject.
Dependencies are inferred from the claim text.