Arteriosclerosis evaluating apparatus

• US 6,669,646 B1
• Filed: 04/07/2003
• Issued: 12/30/2003
• Est. Priority Date: 09/19/2002
• Status: Expired due to Fees

• Current Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Colin Corporation (Fukuda Denshi Company Limited)
• Inventors: Ogura, Toshihiko, Narimatsu, Kiyoyuki
• Primary Examiner(s): Nasser, Robert L.
• Application Number:
  US10/407,195
• Time in Patent Office: 267 Days
• Field of Search: 600/485, 600/490, 600/492-496, 600/500
• US Class Current: 600/485
• CPC Class Codes: A61B 5/02007 Evaluating blood vessel condition, e.g. elasticity, compliance
• CPC Class Codes: A61B 5/02125 of pulse wave propagation time
• CPC Class Codes: A61B 5/022 by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers

Abstract

An arteriosclerosis evaluating apparatus including a left-superior-limb-blood-pressure measuring device including a cuff, a right-superior-limb-blood-pressure measuring device including a cuff, a ratio determining means for determining a ratio between a left-superior-limb blood pressure measured by the left-superior-limb-blood-pressure measuring device and a right-superior-limb blood pressure measured by the right-superior-limb-blood-pressure measuring device, an information obtaining device which obtains information that is related to a velocity at which a pulse wave propagates in a first body portion of the subject that includes at least a portion of the left superior limb or a second body portion of the subject that includes at least a portion of the right superior limb, and a display device which displays the left-and-right-superior-limb blood-pressure ratio determined by the left-and-right-superior-limb-blood-pressure-ratio determining device, and the pulse-wave-propagation-velocity-related information obtained by the pulse-wave-propagation-velocity-related-information obtaining device, such that the left-and-right-superior-limb blood-pressure ratio and the pulse-wave-propagation-velocity-related information are comparable with each other by a medical person.

Claims

1. An arteriosclerosis evaluating apparatus, comprising:

a left-superior-limb-blood-pressure measuring device which measures, with a cuff, a left-superior-limb blood pressure of a left superior limb of a living subject;

a right-superior-limb-blood-pressure measuring device which measures, with a cuff, a right-superior-limb blood pressure of a right superior limb of the subject;

a left-and-right-superior-limb-blood-pressure-ratio determining means for determining a left-and-right-superior-limb blood-pressure ratio as a ratio between the left-superior-limb blood pressure measured by the left-superior-limb-blood-pressure measuring device and the right-superior-limb blood pressure measured by the right-superior-limb-blood-pressure measuring device;

a pulse-wave-propagation-velocity-related-information obtaining device which obtains at least one set of pulse-wave-propagation-velocity-related information that is related to at least one velocity at which at least one pulse wave propagates in at least one of (a) a first body portion of the subject that includes at least a portion of the left superior limb and (b) a second body portion of the subject that includes at least a portion of the right superior limb; and

a display device which displays the left-and-right-superior-limb blood-pressure ratio determined by the left-and-right-superior-limb-blood-pressure-ratio determining means, and said at least one set of pulse-wave-propagation-velocity-related information obtained by the pulse-wave-propagation-velocity-related-information obtaining device, such that the left-and-right-superior-limb blood-pressure ratio and said at least one set of pulse-wave-propagation-velocity-related information are comparable with each other by a person.

2. An arteriosclerosis evaluating apparatus according to claim 1, wherein the pulse-wave-propagation-velocity-related-information obtaining device obtains said at least one set of pulse-wave-propagation-velocity-related information from said at least one of (a) said first body portion of the subject that includes at least said portion of the left superior limb and does not include the right superior limb and (b) said second body portion of the subject that includes at least said portion of the right superior limb and does not include the left superior limb.

3. An arteriosclerosis evaluating apparatus according to claim 2, wherein the pulse-wave-propagation-velocity-related-information obtaining device obtains said at least one set of pulse-wave-propagation-velocity-related information from said at least one of (a) said first body portion of the subject that includes at least said portion of the left superior limb where the left-superior-limb blood pressure is measured and (b) said second body portion of the subject that includes at least said portion of the right superior limb where the right-superior-limb blood pressure is measured.

4. An arteriosclerosis evaluating apparatus according to claim 1, wherein the pulse-wave-propagation-velocity-related-information obtaining device obtains a set of pulse-wave-prop agation-velocity-related information from each one of (a) said first body portion of the subject that includes at least said portion of the left superior limb and does not include the right superior limb and (b) said second body portion of the subject that includes at least said portion of the right superior limb and does not include the left superior limb.

5. An arteriosclerosis evaluating apparatus according to claim 4, wherein the pulse-wave-propagation-velocity-related-information obtaining device obtains said set of pulse-wave-propagation-velocity-related information from said each one of (a) said first body portion of the subject that includes at least said portion of the left superior limb where the left-superior-limb blood pressure is measured and (b) said second body portion of the subject that includes at least said portion of the right superior limb where the right-superior-limb blood pressure is measured.

6. An arteriosclerosis evaluating apparatus according to claim 4, wherein the display device displays the left-and-right-superior-limb blood-pressure ratio, and the respective sets of pulse-wave-propagation-velocity-related information obtained from (a) said first body portion of the subject and (b) said second body portion of the subject, such that the left-and-right-superior-limb blood-pressure ratio and each of the respective sets of pulse-wave-propagation-velocity-related information are comparable with each other by the person.

7. An arteriosclerosis evaluating apparatus according to claim 6, wherein the display device further displays the left-superior-limb blood pressure measured by the left-superior-limb-blood-pressure measuring device, and the right-superior-limb blood pressure measured by the right-superior-limb-blood-pressure measuring device.

8. An arteriosclerosis evaluating apparatus, comprising:

a left-superior-limb-blood-pressure measuring device which measures, with a cuff, a left-superior-limb blood pressure of a left superior limb of a living subject;

a right-superior-limb-blood-pressure measuring device which measures, with a cuff, a right-superior-limb blood pressure of a right superior limb of the subject;

a left-and-right-superior-limb-blood-pressure-ratio determining device which determines a left-and-right-superior-limb blood-pressure ratio as a ratio between the left-superior-limb blood pressure measured by the left-superior-limb-blood-pressure measuring device and the right-superior-limb blood pressure measured by the right-superior-limb-blood-pressure measuring device;

a pulse-wave-propagation-velocity-related-information obtaining device which obtains at least one set of pulse-wave-propagation-velocity-related information that is related to at least one velocity at which at least one pulse wave propagates in at least one of (a) a first body portion of the subject that includes at least a portion of the left superior limb and (b) a second body portion of the subject that includes at least a portion of the right superior limb; and

a display device which displays the left-and-right-superior-limb blood-pressure ratio determined by the left-and-right-superior-limb-blood-pressure-ratio determining device, and said at least one set of pulse-wave-propagation-velocity-related information obtained by the pulse-wave-propagation-velocity-related-information obtaining device, such that the left-and-right-superior-limb blood-pressure ratio and said at least one set of pulse-wave-propagation-velocity-related information are comparable with each other by a person.