Implantable drug-delivery devices, and apparatus and methods for filling the devices
First Claim
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1. A method of filling an implantable drug-delivery pump having a drug chamber, the method comprising the steps of:
- providing a tool comprising;
(i) first and second independent fluid channels;
(ii) a fluid reservoir in fluid communication with the first fluid channel; and
(iii) a needle configured for insertion into a fill port of the implantable drug-delivery pump and having a single lumen in fluid communication with the first and second fluid channels;
coupling the tool to the fill port of the implantable drug-delivery pump; and
using the tool to (i) purge the drug chamber and (ii) pump fluid from the fluid reservoir into the drug chamber via the first fluid channel without exceeding a maximum pressure in the drug chamber.
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Abstract
In various embodiments, a tool is employed in filling a drug-delivery device. The tool may include, for example, a needle that is admitted through a fill port of the drug-delivery device.
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Citations
8 Claims
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1. A method of filling an implantable drug-delivery pump having a drug chamber, the method comprising the steps of:
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providing a tool comprising; (i) first and second independent fluid channels; (ii) a fluid reservoir in fluid communication with the first fluid channel; and (iii) a needle configured for insertion into a fill port of the implantable drug-delivery pump and having a single lumen in fluid communication with the first and second fluid channels; coupling the tool to the fill port of the implantable drug-delivery pump; and using the tool to (i) purge the drug chamber and (ii) pump fluid from the fluid reservoir into the drug chamber via the first fluid channel without exceeding a maximum pressure in the drug chamber. - View Dependent Claims (2, 3, 4)
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5. A method of filling an implantable drug-delivery pump having a drug chamber, the method comprising the steps of:
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providing a tool comprising; (i) first and second independent fluid channels; (ii) a fluid reservoir in fluid communication with the first fluid channel; and (iii) first and second pumps each fluidly coupled to one of the fluid channels; coupling the tool to a fill port of the implantable drug delivery pump; and using the tool to; (i) apply positive pressure to the first fluid channel so as to drive fluid from the fluid reservoir therethrough; (ii) apply negative pressure to the second fluid channel so as to suction the fluid from the drug chamber; and (iii) control fluid flow via opening and closing at least one of first and second valves associated with the first and second fluid channels, respectively, so as to prevent fluid pressure at an outlet of the tool from exceeding a predefined level. - View Dependent Claims (6)
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7. A method of filling an implantable drug-delivery pump having a drug chamber, the method comprising the steps of:
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providing a tool comprising; (i) first and second independent fluid channels; (ii) a fluid reservoir in fluid communication with the first fluid channel; and (iii) a needle configured for insertion into a fill port of the implantable drug-delivery pump and having first and second lumens therethrough, the first and second lumens being fluidly isolated from each other and in fluid communication with the first and second fluid channels, respectively; coupling the tool to the fill port of the implantable drug-delivery pump; and using the tool to (i) purge the drug chamber and (ii) pump fluid from the fluid reservoir into the drug chamber via the first fluid channel without exceeding a maximum pressure in the drug chamber. - View Dependent Claims (8)
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Specification