Title:
PRESSURE-SENSING ELEMENT, AND BLOOD CIRCUIT AND BLOOD PURIFICATION APPARATUS PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2014/126185
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a pressure-sensing element with a novel structure, said pressure-sensing element measuring the pressure inside an extracorporeal circulation circuit without coming into contact with blood or air, wherein coagulation of blood is better suppressed by minimizing the retention of blood as a result of improving the flow of blood inside the pressure-sensing element; and a blood circuit and a blood purification apparatus provided with the pressure-sensing element. The present invention provides a pressure-sensing element for an extracorporeal circulation circuit for measuring pressure inside an extracorporeal circulation circuit that performs extracorporeal treatment of blood, and is provided with: a chamber member provided with a fluid chamber that has a deforming surface deformed by the pressure inside the extracorporeal circulation circuit, a fluid inlet, and a fluid outlet, and that allows the blood to flow in and out; a fluid inlet joint for linking the fluid inlet to the extracorporeal circulation circuit; and a fluid outlet joint for linking the fluid outlet to the extracorporeal circulation circuit. Flow passages inside the fluid inlet joint and the fluid outlet joint widen in a cone shape toward the fluid chamber.
Inventors:
TAKEUCHI SHINYA (JP)
MATSUMOTO HIROSHI (JP)
IKEDA MIKIKO (JP)
MATSUMOTO HIROSHI (JP)
IKEDA MIKIKO (JP)
Application Number:
PCT/JP2014/053421
Publication Date:
August 21, 2014
Filing Date:
February 14, 2014
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
A61M1/14; G01L19/00
Foreign References:
| JP2007222490A | 2007-09-06 | |||
| JPH07323083A | 1995-12-12 | |||
| JP2011212174A | 2011-10-27 | |||
| JP2008051663A | 2008-03-06 |
Download PDF: