Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1985-09-17
1986-11-04
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
128DIG12, 604246, A61M 500
Patent
active
046208488
ABSTRACT:
Apparatus for powered infusion or sampling of a patient comprises: a housing (11) carrying a toothed roller (17), an electric motor (19), a transmission (20) operably coupling such roller and motor, and attachment means (14); and a syringe (12) including a barrel (13) and plunger (15), the plunger being of plastics material having a smooth untoothed longitudinal profile (16), and the attachment means holding the syringe by its barrel in a predetermined disposition relative to the housing with the plunger extending transversely relative to the toothed roller axis of rotation and such roller in penetrated driving engagement with said plunger profile; is provided with a further roller (23) carried by said housing and in transversely driven engagement with the syringe plunger; and a monitor (24) operably coupled with the further roller to generate electrical signals representing rotation of such roller and, in turn, plunger translation. The further roller can be toothed and in similar penetrated engagement with the plunger as the first toothed roller, and the two rollers can be mutually arranged coaxially across, serially along or in opposition about the plunger.
REFERENCES:
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patent: 4090502 (1978-05-01), Tajika
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patent: 4416662 (1983-11-01), Dore et al.
patent: 4465474 (1984-08-01), Mardorf et al.
patent: 4502488 (1985-03-01), Degironimo et al.
Chambers Geoffrey R.
Sutherland Ian A.
Ferros John
National Research Development Corporation
Pellegrino Stephen C.
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