Apparatus for controlling blood flow
First Claim
1. An apparatus for controlling blood flow through a pair of blood tubings in a single needle alternating blood flow system, which comprises in combination a support frame, a pair of pivotly mounted clamping arms connected to said frame and mounted parallel to one another, said arms having a leaf spring affixed to the non-pivot end of each clamping arm and extending axially therefrom, a rotatable cam positioned between and in slidable engagement with the leaf springs, and means for actuating the cam, whereby the cam moves the leaf spring-clamping arms to alternately occlude and non-occlude a blood tubing.
0 Assignments
0 Petitions
Accused Products
Abstract
This invention provides a single needle dialysis blood tubing occluder, comprising in a preferred aspect, a pair of pivotly mounted clamping arms having a leaf spring affixed to the non-pivot end of each occluder with the spring in slidable engagement with a symmetrical cam. Means are provided for actuating the cam, whereby the cam moves the tubing occluder to alternately occlude and non-occlude a pair of blood tubings.
-
Citations
12 Claims
- 1. An apparatus for controlling blood flow through a pair of blood tubings in a single needle alternating blood flow system, which comprises in combination a support frame, a pair of pivotly mounted clamping arms connected to said frame and mounted parallel to one another, said arms having a leaf spring affixed to the non-pivot end of each clamping arm and extending axially therefrom, a rotatable cam positioned between and in slidable engagement with the leaf springs, and means for actuating the cam, whereby the cam moves the leaf spring-clamping arms to alternately occlude and non-occlude a blood tubing.
Specification