Pressure measuring syringe

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8707789
SERIAL NO

13528167

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A syringe having an internal pressure gauge comprises a syringe barrel; a piston within the barrel; a spring coupled to the piston at a first position of the spring, the spring having a second portion that is movable in response to fluid pressure within a syringe cavity; and a pressure gauge having an indicator correlated to a plurality of positions of the second portion of the spring to indicate a pressure of a fluid. The spring can be a bellows. The first portion of the spring can be coupled to the piston to form a sliding seal with an inner wall of the syringe, and the second portion of the spring can move longitudinally within the syringe without sealing contact.

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First Claim

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Patent Owner(s)

  • BETH ISRAEL DEACONESS MEDICAL CENTER, INC.;MASSACHUSETTS INSTITUTE OF TECHNOLOGY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duffley, Samuel Billerica, US 34 1016
Slocum, Alexander H Bow, US 190 4182
Slocum,, Jr Alexander Huntington, US 1 3
Spiegel, Joan E Boston, US 4 84
Watral, Adrienne Lynnwood, US 2 25

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