Implantable drug delivery device with peristaltic pump having a retractable roller
First Claim
1. A method of manufacture of an implantable drug infusion device comprising the steps of:
- (a) assembling a race configured to support a pump tube along a path;
(b) assembling a roller assembly configured to apply pressure to the tube against the race at one or more points along the path, the roller assembly including at least one retracting roller;
(c) retracting the roller away from the race; and
(d) inserting a pump tube between the retracted roller and the race.
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Accused Products
Abstract
An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the pump tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the roller assembly includes at least one roller and a hub. A drive assembly drives the roller assembly relative to the tube along the path so as to move the liquid through the tube. A retracting roller is operably connected to the hub and/or one or more adjacent rollers to permit retraction of the roller during installation of the pump tube between the roller and the race.
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Citations
19 Claims
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1. A method of manufacture of an implantable drug infusion device comprising the steps of:
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(a) assembling a race configured to support a pump tube along a path;
(b) assembling a roller assembly configured to apply pressure to the tube against the race at one or more points along the path, the roller assembly including at least one retracting roller;
(c) retracting the roller away from the race; and
(d) inserting a pump tube between the retracted roller and the race. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification