초록 ▼

A peristaltic pump for pumping fluids through a flexible tube is described which has a quick release and engagement mechanism that permits easy and rapid removal or insertion of the flexible tube into the device. The quick release and engagement mechanism of the invention consists of a shoe mounted

A peristaltic pump for pumping fluids through a flexible tube is described which has a quick release and engagement mechanism that permits easy and rapid removal or insertion of the flexible tube into the device. The quick release and engagement mechanism of the invention consists of a shoe mounted for vertical displacement on the body of the pump. Upward movement of the shoe engages the flexible tube holding the fluid to be pumped and locks the tube against the roller assembly containing an eccentrically mounted roller which intermittently engages the tube and forces fluid out of it. To disengage the flexible tube from the pump, the shoe is moved downward out of contact with the flexible tube.

대표청구항 ▼

A peristaltic pump comprising: a housing, means for imparting rotational motion through a shaft to roller assembly means mounted on said housing for engaging and compressing a flexible tube to continuously displace fluid through said flexible tube, said flexible tube being held in contact with said

A peristaltic pump comprising: a housing, means for imparting rotational motion through a shaft to roller assembly means mounted on said housing for engaging and compressing a flexible tube to continuously displace fluid through said flexible tube, said flexible tube being held in contact with said roller assembly means by shoe means moveably mounted on said housing adjacent said roller assembly means, cam means to move said shoe means into a position of engagement with said tubing, said shoe means comprising a body defining an arcuate surface for contact said flexible tube when moved to a position of engagement, said shoe means being adapted for displacement in one direction to engage a portion of said tube and hold it in engagement with said compressive roller assembly means or displacement in the other direction to disengage said tube from said roller assembly means and permit its removal from said pump said roller assembly means comprising at least three rollers mounted within a roller housing which is disposed on a rotating shaft connected to said means for imparting rotational motion such that rotation of said shaft and roller housing causes said rollers to rotate orbitally around said shaft; said roller assembly means being mounted on a pump housing provided with means for slidably engaging said shoe means with said pump housing to provide for displacement of said shoe means; displacement of said shoe means being effected by means of a cam shaft provided with an eccentrically mounted cam on one end, said cam shaft passing through a slot defined in said pump housing to engage said shoe means on its other end, said cam acting against a cam journal defined by said pump housing when said cam shaft is turned to cause displacement of said shoe means against said flexible tube to provide a lock when closed.