| 摘要 |
PCT No. PCT/SE95/00797 Sec. 371 Date Mar. 31, 1997 Sec. 102(e) Date Mar. 31, 1997 PCT Filed Jun. 28, 1995 PCT Pub. No. WO96/04944 PCT Pub. Date Feb. 22, 1996Drip chamber heads are disclosed for attachment to drip chambers in which the drip chamber head includes a vertical body, a first connector for connecting the body to a blood supply, and a drip tube disposed within the body including a depending lower portion, the upper portion of the drip tube being in communication with the first connector so that blood may be supplied to the drip chamber through the first connector and the drip tube, thereby providing the blood at an adjustable level within the drip chamber with an air filled region thereabove, a second connector disposed at the upper portion of the body for communicating with the air filled region of the drip chamber, and an air permeable filter disposed at the upper portion of the body between the second connector and the adjustable level of blood within the drip chamber whereby the air pressure within the air filter region of the drip chamber can be sensed through the second connector. |
