BLOOD PRESSURE INFORMATION MEASUREMENT DEVICE

• US 20110009757A1
• Filed: 09/17/2010
• Published: 01/13/2011
• Est. Priority Date: 03/19/2008
• Status: Abandoned Application

• Current Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Inventors: ARIGA, Hiroyasu, UESAKA, Chisato, SANO, Yoshihiko
• Application Number:
  US12/884,225
• Publication Number:
  US 20110009757A1
• Time in Patent Office: Days
• US Class Current: 600/499
• CPC Class Codes: A61B 5/02141 Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits A61B5/02233, A61B5/0235 take precedence
• CPC Class Codes: A61B 5/02233 Occluders specially adapted therefor tourniquets A61B17/132

Abstract

A sphygmomanometer separately includes a cuff accommodating an air bladder and a main body provided with an expanding/contracting mechanism arranged to expand and contract the air bladder, and the cuff includes a tubular cuff main body portion into which an upper arm is insertable and a gripping portion provided on an outer peripheral surface of the cuff main body portion. The cuff main body portion has a tightening belt wrapped around the outer side of the air bladder and a tightening length adjustment mechanism arranged to variably adjust a tightening length of the tightening belt over the upper arm. The tightening length adjustment mechanism includes a winding roller arranged to wind and feed the tightening belt, a geared motor arranged to drive and rotate the winding roller, and an electromagnetic brake arranged to apply a braking force to the winding roller. With such a configuration, in the sphygmomanometer in which the cuff and the main body are separated from each other, the cuff can be easily attached to a measurement site, and reliable winding of the cuff around the measurement site can be repeated in every measurement.

Claims

1. A blood pressure information measurement device, comprising:

a cuff arranged to be attached to a measurement site at a time of measurement; and

a main body, separate from the cuff, and to be placed on a supporting surface for use at the time of measurement;

wherein

the cuff includes;

a tubular cuff main body portion including a hollow opening portion into which the measurement site is insertable in an axial direction; and

a gripping portion provided on an outer peripheral surface of the cuff main body portion;

wherein

the cuff main body portion includes;

a fluid bag arranged to compress the measurement site;

a tightening belt wrapped around an outer side of the fluid bag; and

a tightening length adjustment mechanism arranged to variably adjust a tightening length of the tightening belt over the measurement site;

the main body includes;

an expanding/contracting mechanism arranged to expand and contract the fluid bag; and

the tightening length adjustment mechanism includes;

a winding roller arranged to wind and feed the tightening belt;

an electric motor arranged to drive and rotate the winding roller in a forward direction and a backward direction; and

a brake arranged to apply a braking force to the winding roller at a time of stopping the electric motor.

2. The blood pressure information measurement device according to claim 1, wherein

the gripping portion includes a base portion attached to the cuff main body portion, and

the tightening length adjustment mechanism is accommodated in the base portion.

3. The blood pressure information measurement device according to claim 1, wherein a winding operation unit arranged to receive a command to start a winding operation of the tightening belt by the winding roller is provided in the gripping portion.

4. The blood pressure information measurement device according to claim 3, wherein the winding operation unit is defined by a push button.

5. The blood pressure information measurement device according to claim 1, further comprising:

a tightening force detection mechanism arranged to detect a tightening force of the tightening belt over the measurement site, wherein

the tightening length adjustment mechanism is arranged to stop a winding operation of the tightening belt by the winding roller when the tightening force detection mechanism detects a predetermined magnitude of the tightening force.

6. The blood pressure information measurement device according to claim 5, wherein the tightening force detection mechanism is arranged to detect an internal pressure of the fluid bag at a time of the winding operation of the tightening belt by the winding roller in a state in which a predetermined amount of fluid is injected into the fluid bag by the expanding/contracting mechanism, so as to detect the tightening force of the tightening belt over the measurement site.

7. The blood pressure information measurement device according to claim 5, wherein the tightening force detection mechanism is arranged to detect a rotation torque applied to the winding roller at a time of driving and rotating the winding roller by the electric motor, so as to detect the tightening force of the tightening belt over the measurement site.

8. The blood pressure information measurement device according to claim 5, wherein the expanding/contracting mechanism is arranged to start a pressurization operation of the fluid bag to measure blood pressure information after stopping the winding operation of the tightening belt by the winding roller.

9. The blood pressure information measurement device according to claim 5, wherein the tightening length adjustment mechanism is arranged to start a feeding operation of the tightening belt by the winding roller after finishing a measurement operation to measure blood pressure information.

10. The blood pressure information measurement device according to claim 1, wherein the cuff main body portion further includes a flexible member that is elastically deformable in a radial direction on the outer side of the fluid bag and on an inner side of the tightening belt.