Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1989-03-17
1992-08-04
Hafer, Robert A.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 96, 604 99, 604100, 606192, A61M 2902
Patent
active
051354888
ABSTRACT:
An electronically controlled syringe system for connection to a balloon catheter or other balloon-type member and for automatically monitoring, displaying and recording inflation data when the syringe system is used to inflate the balloon catheter or other balloon-type member. A syringe having a barrel and a syringe plunger is selectively operable to increase fluid pressure applied to the balloon catheter or other balloon member by sliding the plunger further into the barrel. Positive pressure applied to the balloon catheter or member can be released by withdrawing the syringe plunger toward the rear of the barrel. A piezoresistive semiconductor transducer housed on the barrel of the syringe senses positive fluid pressure applied by the syringe. The electric signal output by the transducer is input to a controller where the signal is digitally processed so as to derive and record therefrom electronic data representing the magnitude or applied fluid pressure, and so as also to derive the length of time that positive fluid pressure is applied and the electronic data representing this information is automatically displayed and recorded. The controller is also programmable to permit optional selection and input of various control parameters, such as a maximum positive inflation pressure that is to be applied, maximum duration for applying positive inflation pressure, initialization of the date and time of an inflation procedure and/or retrieving and displaying inflation data previously recorded for any prior inflation of the balloon catheter or other balloon member.
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Foote Jerrold L.
Gill Darla R.
Lampropoulos Fred P.
Hafer Robert A.
Merit Medical Systems Inc.
Owens Kerry
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