Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-03-12
1999-03-09
Stright, Ronald
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604184, 604208, 604213, 604215, 604231, 604232, 604236, A61M 500
Patent
active
058793364
ABSTRACT:
The invention relates to a portable and non-implantable device to enable a patient to self-administer, on demand, successive doses of a liquid while ensuring that the period of time between two successive administrations cannot be less than a reference value. The device has a liquid reservoir formed in a piston which can be pushed in a chamber to expel the contents of the chamber via an injection outlet and which is returned in the opposite direction by a return. The liquid reservoir communicates with the inside of the chamber via a passage formed through the piston and is provided with a flow rate limiter so that the time required to fill the chamber corresponds to a reference value. The invention is suitable for medical applications.
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patent: 5499751 (1996-03-01), Meyer
Stright Ronald
Vygon
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