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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0346064 (2012-09-20) |
| 등록번호 | US-9700672 (2017-07-11) |
| 국제출원번호 | PCT/US2012/056355 (2012-09-20) |
| 국제공개번호 | WO2013/043881 (2013-03-28) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 0 인용 특허 : 588 |
A selector valve for a medical fluid delivery device is disclosed. The valve includes a valve bore in fluid communication with an outlet channel, first and second outlet ports, and a selector valve body which includes a valve stem located within the valve bore and having a flow passage. The selector
A selector valve for a medical fluid delivery device is disclosed. The valve includes a valve bore in fluid communication with an outlet channel, first and second outlet ports, and a selector valve body which includes a valve stem located within the valve bore and having a flow passage. The selector valve body is adapted to place the flow passage in fluid communication with one of the first outlet port, the second outlet port, and a shut-off position. Further, the selector valve body includes a sealing arrangement having an elastomeric core disposed within a thin-walled valve stem which comprises a thin cylindrical sidewall in direct contact with the valve bore. When the elastomeric core and the valve stem are subjected to internal fluid pressure, the thin cylindrical sidewall of the valve stem expands outward to increase a sealing force between an outer diameter of the valve stem and the valve bore.
1. A selector valve for a medical fluid delivery device, the selector valve comprising: a valve bore in fluid communication with an outlet channel;a first outlet port;a second outlet port; anda selector valve body comprising a valve stem located within the valve bore and having a flow passage, where
1. A selector valve for a medical fluid delivery device, the selector valve comprising: a valve bore in fluid communication with an outlet channel;a first outlet port;a second outlet port; anda selector valve body comprising a valve stem located within the valve bore and having a flow passage, wherein the selector valve body is adapted to place the flow passage in fluid communication with one of the first outlet port, the second outlet port, and a shut-off position,wherein the selector valve body comprises a sealing arrangement having an elastomeric core disposed within a thin-walled valve stem, wherein the thin-walled valve stem comprises a thin cylindrical sidewall in direct contact with the valve bore, andwherein, when the elastomeric core and the valve stem are subjected to internal fluid pressure, the thin cylindrical sidewall of the valve stem expands outward to increase a sealing force between an outer diameter of the valve stem and the valve bore. 2. The selector valve of claim 1, wherein the first outlet port is a patient outlet port in fluid communication with a patient fluid supply set and the second outlet port is a waste outlet port in fluid connection with a waste receptacle. 3. The selector valve of claim 1, further comprising an actuator interface head adapted to interface with a valve actuator associated with a drive and actuating system. 4. The selector valve of claim 3, wherein the valve actuator controls operation of the selector valve body. 5. The selector valve of claim 1, further comprising a proximal pressure sensing port comprising a pressure sensing diaphragm. 6. The selector valve of claim 1, wherein the thin cylindrical sidewall of the valve stem defines an aperture connected to an outlet port and the elastomeric core defines the flow passage to direct fluid to the outlet port.
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