Digital syringe with compensation control

Details Digital syringe with compensation control Digital syringe with compensation control

2011-08-23

2011-08-23

Koharski, Christopher D (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

08002748

ABSTRACT:
A syringe for performing a medical procedure includes a pressure sensor, a volume sensor, and a compensation circuit. The volume sensor measures a volume of a flowable material that is dispensed from the syringe, the pressure sensor measures a pressure being applied to the flowable material, and the compensation circuit calculates a delivered volume of the flowable material by accounting for system compliance (expansion) as the pressure is increased. By compensating for system compliance in this manner, a syringe can be used in high pressure procedures while still providing accurately controllable material delivery.

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patent: 5681285 (1997-10-01), Ford et al.
patent: 2007/0112299 (2007-05-01), Smit et al.

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