Title:
空気式陣痛計
Document Type and Number:
Japanese Patent JP2014504941
Kind Code:
A
Abstract:
A pneumatic tocodynamomeer ("pTOCO") (10) having a guard-ring (13) with a thin elastic membrane (18) stretched across a shallow spherical depression (12) trapping a small volume of air in the centre of the guard-ring (13). A pressure transducer (17) may be moulded into the body (11) of the pTOCO (10). In an alternative embodiment, the air volume beneath the membrane (18) of the pTOCO (10) may be connected via a low volume air conduit (14, 15) to a separate pressure transducer (16).
Inventors:
Eswaran, Hari
Lowery, Curtis, Elle.
Wilson, James, Dee.
Lowery, Curtis, Elle.
Wilson, James, Dee.
Application Number:
JP2013553429A
Publication Date:
February 27, 2014
Filing Date:
February 03, 2012
Export Citation:
Assignee:
Board of Trustees of the University of Arkansas
International Classes:
A61B10/00
Domestic Patent References:
| JP2008302052A | 2008-12-18 | |||
| JPS60129642U | 1985-08-30 | |||
| JPS5734201U | 1982-02-23 | |||
| JP2005520605A | 2005-07-14 |
Foreign References:
| US4324259A | 1982-04-13 | |||
| US5218972A | 1993-06-15 |
Attorney, Agent or Firm:
Asamura patent office