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公开(公告)号：US3620207A
公开(公告)日：1971-11-16
申请号：US3620207D
申请日：1969-05-14
发明人： SINCLAIR JOHN C
CPC分类号： A61B5/6886 , A61B5/028
摘要： This invention relates to a blood flowmeter comprising a catheter suitable for insertion into a blood vessel, thermal resistors (thermistors) connected in electrical circuits disposed in the catheter near the insertable end of the catheter; and moving means for moving the thermistors out of the insertable end of the catheter into the blood flow and, when desired, back into the catheter. Means are also provided for measuring electrical response through the thermistors. Flow characteristics in the blood vessels are determined by observing changes in measured electrical response through the thermistor circuits.
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公开(公告)号：US3589360A
公开(公告)日：1971-06-29
申请号：US3589360D
申请日：1969-05-14
发明人： SINCLAIR JOHN C
摘要： An electrical instrument for measuring blood velocity for chronic implantation in a living body is disclosed herein. The instrument comprises a probe, an electrical cable, and a skin connector. The cable comprises a pair of coiled and insulated platinum alloy wires covered by a flexible electrically insulated material innocuous to animal tissue. The probe comprises a miniature thermistor electrically connected between the common ends of the wires and is also covered with the same electrically insulated material.
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3.发明授权Process of forming an electrical cable for chronic implantation within a living body 失效形成用于生活体内慢性植入的电缆的工艺
公开(公告)号：US3466742A
公开(公告)日：1969-09-16
申请号：US3466742D
申请日：1967-01-30
发明人： SINCLAIR JOHN C
CPC分类号： A61N1/375 , A61B5/07 , H01B13/06 , Y10T29/49002 , Y10T29/49082
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