Medical pressure gauge
AssigneeHideo FUMIYAMA
InventorHideo FUMIYAMA
Life of this patent
Estimating the term…
Abstract
Provided is a pressure gauge capable of being effectively used for internal pressure measurement of a balloon catheter and capable of providing easy monitoring of a pressure value even when measuring internal pressure of an extracorporeal circulation circuit. The pressure gauge measures internal pressure of a balloon catheter used for treatment and diagnosis or pressure of a body lumen of a living body and includes a coil-shaped tube 2 to elastically deform. One end of the tube 2 is set as an open fixed end and the other end is set as a sealed free end and pressure introduced from the open fixed end can be measured based on a displacement position of the tube 2 due to the pressure.
Claims8
A medical pressure gauge to measure internal pressure of a balloon catheter used for treatment and diagnosis or pressure of a body lumen of a living body, comprising
- a cylindrical deforming member formed into a coil shape to elastically deform,
- wherein one end of the deforming member is set as an open fixed end and the other end is set as a sealed free end, and
- a marker is arranged along a longitudinal direction on the surface of the deforming member to enable pressure introduced from the open fixed end to be measured based on a positional relation between the sealed free end and the marker in association with variation of a curvature radius of the coil shape caused by the pressure introduced to the open fixed end.
(canceled)
Dependencies are inferred from the claim text.