Drug delivery device
First Claim
1. A drug delivery device for injecting medicament, said drug delivery device comprising:
- a tubular reservoir for accommodating a medicament, said reservoir extending along a longitudinal axis;
a stopper slideably disposed in said reservoir;
a first spring for moving said stopper from a first position to a second position in said reservoir;
a needle, said needle having a distal end for insertion into a patient, and a lumen extending proximally from said distal end, said lumen being in direct or indirect communication with said reservoir, wherein, at least a portion of said lumen extending proximally from said distal end extends along a reference axis not coaxial with said longitudinal axis;
a second spring;
a needle driver for displacing said needle in a direction transverse to said longitudinal axis from a first state to a second state;
an actuator; and
a needle actuator driven by the second spring to displace in a direction parallel to the longitudinal axis, wherein during its displacement, the needle actuator interacts with the needle driver to cause said needle displacementwherein activation of said actuator causes;
said first spring to move said stopper from said first position and toward said second position; and
said second spring to displace said needle actuator to cause said needle driver to displace said needle from said first state and toward said second state,wherein, said needle moves relative to, and separately from, said reservoir with said needle being displaced from said first state and toward said second state.
1 Assignment
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Accused Products
Abstract
The subject invention provides a drug delivery device for injecting medicament which includes: a tubular reservoir; a stopper slidably disposed in the reservoir; a spring for moving the stopper in the reservoir; at least one needle, the needle having a distal end for insertion into a patient, and a lumen extending proximally from the distal end, the lumen being in direct or indirect communication with the reservoir; a needle driver for displacing the needle; and, an actuator. Activation of the actuator causes the spring to move the stopper and the needle driver to displace the needle. The needle moves relative to, and separately from, the reservoir with the needle being displaced. Advantageously, with the subject invention, a drug delivery device is provided wherein a needle is moved, relative to the reservoir, in being displaced for injection. This permits control of the needle displacement separate from the reservoir.
16 Citations
19 Claims
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1. A drug delivery device for injecting medicament, said drug delivery device comprising:
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a tubular reservoir for accommodating a medicament, said reservoir extending along a longitudinal axis; a stopper slideably disposed in said reservoir; a first spring for moving said stopper from a first position to a second position in said reservoir; a needle, said needle having a distal end for insertion into a patient, and a lumen extending proximally from said distal end, said lumen being in direct or indirect communication with said reservoir, wherein, at least a portion of said lumen extending proximally from said distal end extends along a reference axis not coaxial with said longitudinal axis; a second spring; a needle driver for displacing said needle in a direction transverse to said longitudinal axis from a first state to a second state; an actuator; and a needle actuator driven by the second spring to displace in a direction parallel to the longitudinal axis, wherein during its displacement, the needle actuator interacts with the needle driver to cause said needle displacement wherein activation of said actuator causes; said first spring to move said stopper from said first position and toward said second position; and said second spring to displace said needle actuator to cause said needle driver to displace said needle from said first state and toward said second state, wherein, said needle moves relative to, and separately from, said reservoir with said needle being displaced from said first state and toward said second state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A drug delivery device for injecting medicament, said drug delivery device comprising:
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a tubular reservoir for accommodating a medicament, said reservoir extending along a longitudinal axis; a stopper slideably disposed in said reservoir; a spring for moving said stopper from a first position to a second position in said reservoir; a needle, said needle having a distal end for insertion into a patient, and a lumen extending proximally from said distal end, said lumen being in direct or indirect communication with said reservoir, wherein, at least a portion of said lumen extending proximally from said distal end extends along a reference axis not coaxial with said longitudinal axis; a needle driver for displacing said needle from a first state to a second state; and
,an actuator, wherein activation of said actuator causes; said spring to move said stopper from said first position and toward said second position; and said needle driver to displace said needle from said first state and toward said second state, wherein, said needle moves relative to, and separately from, said reservoir with said needle being displaced from said first state and toward said second state, and wherein said needle driver includes a cantilevered arm and a spring member for causing deformation of said cantilevered arm, said deformation of said cantilevered arm causing displacement of said needle from said first state and toward said second state.
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17. A drug delivery device for injecting medicament, said drug delivery device comprising:
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a tubular reservoir for accommodating a medicament, said reservoir extending along a longitudinal axis; a body accommodating said reservoir and having a substantially planar portion to which the longitudinal axis is parallel; a stopper slideably disposed in said reservoir; a first spring for moving said stopper from a first position to a second position in said reservoir; a needle, said needle having a distal end for insertion into a patient, and a lumen extending proximally from said distal end, said lumen being in direct or indirect communication with said reservoir, wherein, at least a portion of said lumen extending proximally from said distal end extends along a reference axis not coaxial with said longitudinal axis; a second spring; a needle driver for displacing said needle in a direction transverse to said longitudinal axis from a first state to a second state; a needle actuator driven by the second spring to displace in a direction parallel to the body'"'"'s planar portion, wherein during its displacement, the needle actuator interacts with the needle driver to cause said needle displacement; and an actuator, wherein activation of said actuator causes; said first spring to move said stopper from said first position and toward said second position; and said second spring to displace said needle actuator to cause said needle driver to displace said needle from said first state toward said second state; and wherein, said needle moves relative to, and separately from, said reservoir with said needle being displaced from said first state and toward said second state. - View Dependent Claims (18, 19)
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Specification