Automatic injection device
First Claim
Patent Images
1. An injector device comprising:
- a body containing a syringe with a needle and plunger;
a drive spring coupled with the syringe and operable, when released, to drive the syringe forward to inject the needle and subsequently to dispense a dosage from the syringe, the drive spring being initially locked in an unreleased position;
a housing containing the body and drive spring;
a release apparatus coupled with the housing;
the body slidable with respect to the housing and configured for sliding upward in the housing when the injector device is pressed down at an injection site to engage the release apparatus and release the drive spring for delivering a dosage.
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Accused Products
Abstract
An injector device comprising a body containing a syringe with a needle and plunger, a drive spring coupled with the syringe and operable, when released, to drive the syringe forward to inject the needle and subsequently to dispense a dosage from the syringe, a housing containing the body and drive spring, and a release apparatus coupled with the housing. The drive spring is initially locked in an unreleased position, and the body is slidable with respect to the housing and configured for sliding upward in the housing when the injector device is pressed down at an injection site to engage the release apparatus and release the drive spring for delivering a dosage.
250 Citations
53 Claims
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1. An injector device comprising:
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a body containing a syringe with a needle and plunger;
a drive spring coupled with the syringe and operable, when released, to drive the syringe forward to inject the needle and subsequently to dispense a dosage from the syringe, the drive spring being initially locked in an unreleased position;
a housing containing the body and drive spring;
a release apparatus coupled with the housing;
the body slidable with respect to the housing and configured for sliding upward in the housing when the injector device is pressed down at an injection site to engage the release apparatus and release the drive spring for delivering a dosage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An injector device comprising:
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a syringe with a needle and plunger;
a drive member coupled with the syringe and having a stroke to drive the syringe forward to inject the needle and subsequently to drive the plunger forward to dispense a dosage from the syringe;
the drive member rotating from a first position to a second position in the stroke to drive the syringe and needle forward and, upon reaching the second position, driving the plunger forward to dispense a dosage. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. An injector device comprising:
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a syringe with a needle and plunger;
a drive member coupled with the syringe and having a stroke to drive the syringe forward to inject the needle and subsequently to drive the plunger forward to dispense a dosage from the syringe;
a drive washer positioned between the drive member and syringe;
the drive member, in an injection portion of the stroke, driving the washer to drive the syringe, and in a dosage portion of the stroke, passing through the drive washer to drive the plunger. - View Dependent Claims (24, 25, 26, 27)
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28. An injector device comprising:
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a syringe with a needle and plunger;
a drive member coupled with the syringe and having a stroke;
the drive member, in an injection portion of the stroke, driving the syringe forward to inject the needle and, in a dosage portion of the stroke, driving the plunger forward to dispense a dosage from the syringe;
a protective sheath;
the protective sheath being biased forwardly during the injection portion and automatically released during the dosage portion to cover the needle when the injection is complete. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. An injector device comprising:
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a syringe with a needle and plunger;
a drive member coupled with the syringe and having a stroke;
the drive member, in an injection portion of the stroke, driving the syringe forward to inject the needle and, in a dosage portion of the stroke, driving the plunger forward to dispense a dosage from the syringe;
a protective sheath;
the protective sheath automatically ratcheting forwardly generally upon completion of the dosage portion of the stroke to cover the needle when the injection is complete. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
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46. An injector device comprising:
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a body containing a syringe with a needle and plunger;
a drive apparatus coupled with the syringe and operable, when released, to drive the syringe forward to inject the needle and subsequently to dispense a dosage from the syringe, the drive spring being initially locked in an unreleased position;
a housing containing the body and drive apparatus;
a release apparatus coupled with the housing;
the body slidable with respect to the housing and configured for sliding upward in the housing when the injector device is pressed down at an injection site to engage the release apparatus and release the drive apparatus for delivering a dosage.
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47. An injector device comprising:
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a syringe with a body, a needle and plunger movable in the body;
a drive system coupled with the syringe and having a stroke to drive the syringe body forward to inject the needle and subsequently to drive the plunger forward to dispense a dosage from the syringe;
the drive system, in an injection portion of the stroke, engaging the syringe body to drive the syringe, and in a dosage portion of the stroke, disengaging from the syringe body to drive the plunger.
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48. An injector device comprising:
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a syringe with a needle and plunger;
a drive system coupled with the syringe and having a stroke;
the drive system, in an injection portion of the stroke, driving the syringe forward to inject the needle and, in a dosage portion of the stroke, driving the plunger forward to dispense a dosage from the syringe;
a protective sheath operable for automatically ratcheting forwardly generally upon completion of the dosage portion of the stroke to cover the needle when the injection is complete.
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49. An injector device comprising:
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a syringe with a needle and plunger;
a drive system coupled with the syringe and having a stroke;
the drive system, in an injection portion of the stroke, driving the syringe forward to inject the needle and, in a dosage portion of the stroke, driving the plunger forward to dispense a dosage from the syringe;
a protective sheath operable for being biased forwardly during the injection portion and automatically released during the dosage portion to cover the needle when the injection is complete.
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50. An injector device comprising:
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a body containing a syringe with a needle and plunger;
a drive apparatus coupled with the syringe and operable, when released, to drive the syringe forward to inject the needle and subsequently to dispense a dosage from the syringe, the drive spring being initially locked in an unreleased position;
a housing containing the body and drive apparatus;
a visual indicator coupled with the housing, the visual indicator operable for indicating the status of the injector device. - View Dependent Claims (51, 52, 53)
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Specification