[특허]Method for detection of leakage of blood

Method for detection of leakage of blood 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-061/32 G01J-003/00
출원번호	US-0560335 (1995-11-17)
발명자 / 주소	Brose Tom L. (Gurnee IL) Blasko John A. (Gurnee IL) Faehnrich Richard (Niles IL)
출원인 / 주소	Aksys, Ltd. (Lincolnshire IL 02)
인용정보	피인용 횟수 : 52 인용 특허 : 0

초록 ▼

A method for detecting the presence of blood in a dialysate solution is disclosed. The method provides for certain measurement of light intensity passing through solutions both before and during the dialysis session. Before dialysis is commenced, measurements are made of the intensity of light passing through a chamber containing a control dialysate solution that is free of blood. The light source is a first condition. The light source\s state is changed from a first condition to a second condition different from the first condition. Next, a second measurement of the intensity of light is made. The first and second measurements are stored. During dialysis, the method continues with the following steps: conducting a third measurement of the intensity of light of the light source that passes though the chamber, the chamber containing dialysate solution that may contain the patient\s blood, with the light source in the first condition. Next, the state of the light source is changed from the first condition to the second condition. A fourth measurement of the intensity of light passing through the solution is made. A suitable processor calculates an attenuation coefficient indicative of the presence of blood in the dialysate solution during dialysis from the first, second, third and fourth measurements.

대표청구항 ▼

A method of detecting the presence of blood during dialysis treatment of a patient in a dialysate solution, said solution having been passed through a dialyzer during dialysis of a patient\s blood, comprising the steps of: (a) prior to said dialysis treatment conducting a first measurement of the intensity of light impinging on a photosensitive detector aligned with a light source, said light passing through a chamber containing a control dialysate solution that is free of blood, with said light source in a first condition emitting light of intensity P0, where P0 is greater than or equal to zero; changing the state of said light source from a first condition to a second condition different from said first condition; conducting a second measurement with said photosensitive detector of the intensity of light from said light source that passes through said chamber containing said control dialysate solution, with said light source in said second condition emitting light at an intensity P1≠P0, and (b) during dialysis, conducting a third measurement with said photosensitive detector of the intensity of light, said light passing through said chamber, said chamber containing dialysate solution that may contain the patient\s blood is said dialzyer is in a defective condition allowing said patient\s blood to pass through said dialzyer into said dialysate solution, said light source in said first condition; changing the state of said light source from said first condition to said second condition; conducting a third measurement with said photosensitive detector of the intensity of light of said light source that passes through said chamber, said chamber containing dialysate solution that may contain the patient\s blood is said dialyzer is in a defective condition allowing said patient\s blood to pass through said dialzyer into said dialysate solution, said light source in said second condition; and calculating an attenuation coefficient of said intensity of light passing through said chamber indicative of the presence of blood in said dialysate solution during dialysis from said first, second, third and fourth measurements.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Method for detection of leakage of blood 원문보기

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Method for detection of leakage of blood 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (52)

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