Injector assembly with driving means and locking means
First Claim
Patent Images
1. An injector assembly, comprising:
- (a) driving means for injecting a substance into a subject;
(b) locking means for retaining the driving means; and
(c) means for releasing the retained driving means from the locking means, wherein the means for releasing comprises a pneumatic power unit and at least one path detachably attaching the power unit to locking means, wherein the locking means is configured to release the driving, means when the pneumatic power unit builds a predetermined amount of pressure in the at least one path.
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Accused Products
Abstract
Disclosed is an injector assembly having driving means for injecting a substance into a subject and locking means for retaining the driving means until a predetermined amount of pressure builds in a cavity near the driving means.
155 Citations
36 Claims
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1. An injector assembly, comprising:
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(a) driving means for injecting a substance into a subject;
(b) locking means for retaining the driving means; and
(c) means for releasing the retained driving means from the locking means, wherein the means for releasing comprises a pneumatic power unit and at least one path detachably attaching the power unit to locking means, wherein the locking means is configured to release the driving, means when the pneumatic power unit builds a predetermined amount of pressure in the at least one path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An injector assembly, comprising:
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(a) a driving assembly; and
(b) a lock assembly configured to engage the driving assembly, said lock assembly comprising at least one roller, at least one roller retainer, and an annular groove, (c) a pneumatic power unit having at least one path detachably attaching the pneumatic power unit to the driving assembly, wherein the lock assembly is configured to release the engaged driving assembly when a predetermined amount of pneumatic pressure from the pneumatic power unit builds near the drive assembly. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An injector assembly, comprising:
- (a) a first component, further comprising (i) a piston assembly comprising a piston, (ii) a lock assembly comprising a spring, at least one roller, at least one roller retainer, and an annular groove, the lock assembly configured to engage the piston assembly, and (iii) an injection chamber, wherein the piston assembly is configured to drive a substance out of the injection chamber; and
(b) a pneumatic pressure unit detachably attached to the first component by at least one path,wherein the lock assembly is configured to release the engaged piston assembly when a predetermined amount of pressure from the pneumatic pressure unit builds near the first component. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
- (a) a first component, further comprising (i) a piston assembly comprising a piston, (ii) a lock assembly comprising a spring, at least one roller, at least one roller retainer, and an annular groove, the lock assembly configured to engage the piston assembly, and (iii) an injection chamber, wherein the piston assembly is configured to drive a substance out of the injection chamber; and
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26. A method of preventing premature injection of a substance from an injector assembly, comprising:
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(a) locking a driving assembly into a lock assembly;
(b) increasing pressure from a pneumatic power unit against the driving assembly;
(c) retaining the driving assembly in the lock assembly until a predetermined amount of pressure from the pneumatic power unit builds against the driving assembly; and
(d) overcoming with the predetermined amount of pressure an opposing force created by the driving assembly. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification