| 摘要 |
Disclosed is a clamping sleeve-type flow-stopping device, comprising an elastic flow-stopping clamping piece (1). The elastic clamping piece (1) is provided with a tube passing hole (1.4) and a wedge-shaped slit (1.3). The opening end of the wedge-shaped slit (1.3) starts from the side of the tube passing hole (1.4) and extends toward the other end in the length direction of the flow-stopping clamp in a wedge form in which the slit decreases. The composition key points are that: the clamping sleeve-type flow-stopping device further comprises a pushing outer sleeve (2), the pushing outer sleeve (2) has a cavity (2.4) and a tube passing hole (2.2) running through the pushing outer sleeve (2), the tube passing hole (2.2) is disposed corresponding to the tube passing hole (1.4) of the elastic flow-stopping clamping piece, the elastic clamping piece (1) is sleeved in the cavity (2.4) of the pushing outer sleeve, and after the two tube passing holes are aligned with each other, a runner hose requiring flow stopping can pass through the tube passing holes. By means of the clamping sleeve-type flow-stopping device, the hose can be clamped and operated with one hand, and negative pressure is not produced in the clamping process, thereby preventing backflow of blood. |
