Matsushita Electric Works, Ltd.

Fumio Kitagawa

Tsutomu Ichinomiya

Tomohiro Kami

Hideaki Abe

Sumio Wada

Toshio Kusunoki

Youichi Ise

Satoshi Nakayama

Yoshinori Sainomoto

Shinichi Fumuro

Takahiro Kurihara

Manabu Hamamoto

Kouichi Okada

Daisuke Morikawa

Kazuhiro Ide

A hemadynamometer has an air bag designed for attaining oppression or ischemia of radial artery only without oppressing ulnar artery, with a length of the bag made, when the bag is wound on a user's wrist on its radial side starting from such hard organization area as tendons on palm side of the wrist through the radial artery, to reach at least styloid process of radius but not to reach the ulnar artery, and with a width set for locally oppressing the radial artery at least substantially right above the styloid process of radius in longitudinal direction of the wrist.

Hemadynamometer

An improved portable battery powered therapy applicator which applies a high frequency electromagnetic field to a living tissue for promoting hematogenous effects. The applicator is in use to be attached to the skin of a patient and has a casing encapsulating therein, in addition to the battery, an antenna for directing the high electromagnetic field and electronic components forming an oscillator which energizes the antenna. These parts are mounted on a substrate which is made of a rigid material sufficient to resist deflection or deformation in order to protect the antenna on the substrate from deforming or receiving considerable stress at the time of detaching the applicator from the skin. Thus, the antenna can be kept free from breaking even through repeated operations of detaching the applicator, greatly enhancing reliability and prolong an operation life of the applicator.

Portable battery powered electromagnetic therapy application

Portable battery powered electromagnetic therapy applicator

An automated blood pressure monitoring instrument including a noise level detector which enables the instrument to have the sound sensing performance analogous to the human ear. Sounds, including Korotkoff sounds, emitted from the occluded artery of a subject person are transduced into corresponding electric signals to be fed through a filter to the said noise level detector. At the noise level detector, a noise level is calculated from the incoming signals in such a manner as to exclude from this calculation values of expected Korotkoff sound levels and the like which are normally thought to be much higher than an estimated or assumed level of noises associated with the body in the normal blood pressure measurement. The noise level thus detected will vary depending upon the conditions of a subject person as well as varies from person to person, and therefore acts as an effective reference for identifying the Korotkoff sounds. Also included in the instrument is a comparator which discriminates the Korotkoff sounds from the incoming sounds by comparison of their sound levels with a Korotkoff sound reference level which is proportional to said noise level and is naturally a variable level characteristic to the conditions of the subject person. This enables the instrument to discern the differences in the incoming sound signals as the human ear might, thus providing an accurate and effective measurement. When the comparator judges that the incoming sound signals have the level exceeding the above Korotkoff sound reference level, it generates a Korotkoff sound signal representative of the Korotkoff sound. A display is included in the instrument for responding to the appearance and disappearance of the Korotkoff sound signal for providing systolic and diastolic blood pressure indications respectively.

Automated blood pressure monitoring instrument

A sphygmomanometer is provided with an automatic pressure inflation and deflation means for feeding a pressurized air into a cuff wound on the upper arm or the like so as to close the arterial blood flow. Korotkoff's sounds are detected during an interruption of the pressurized air feeding. The air is intermittently repressurized so long as the Korotkoff's sounds can be detected, and is switched over to an exhausting state when the Korotkoff's sounds are no longer detected. The systolic/diastolic blood pressure values are detected during the exhausting state and are digitally indicated. A continuous sound is generated until the Korotkoff's sounds reappear, and thereafter a sound is generated which is synchronized with Korotkoff's sounds.

Sphygmomanometer

Growing community of inventors

Neyagawa, Japan

Fumio Kitagawa