| 摘要 |
The pinching device includes two cross-sections, each having a hollow part with a male indentation and a female indentation, and locking elements, whereby the surfaces of the indentations form a positive pinching passage of the tube; the male indentation has a U shape with a core and two wings; the female indentation has a U shape with a core and two wings; and the pinching passage has a U shape with a core and two wings; the two opposite wings will draw together toward their ends that are opposite to the cores of the indentations, and each of the two wings of the pinching passage has an opening whose width will diminish towards its end that is opposite to the core of the pinching passage; the width of the opening of the pinching passage is at most slightly smaller than twice the thickness of the wall of the flexible tube to be pinched, and, designed to constitute a pinching closing device, it is disposable, performing a function of closing the tube on itself in the pinching region, preventing any passage of fluid into the tube. |
| 主权项 |
1. A pinching closing device (1) for pinching a flexible tube in a pinching region, comprising:
two cross-sections (3a, 3b), each cross-section having a hollow part (4a, 5a) with a male indentation (11b) and a female indentation (11a), respectively, able to be either in the open state where they are separated from one another or in the closed state where they are drawn together and closed on one another by reciprocal-locking means (25a and 25b) and where surfaces (13 and 14) of the indentations (11a and 11b) form a positive pinching passage (23) of the tube, wherein, in the transverse straight cross-section, the male indentation (11b) has a U shape with a core (37) and two wings (38a and 38b); in the transverse straight cross-section, the female indentation (11a) has a U shape with a core (35) and two wings (36a and 36b); and in the transverse straight cross-section, the pinching passage (23) has a U shape with a core (41) and two wings (42a and 42b), the two wings (36a, 38a and 36b, 38b) opposite each pair of wings facing the male indentation (11a) and the female indentation (11b) will draw together toward their ends (43) that are opposite to the cores of the indentations (35 and 37), at least in the zone of these ends (43), and each of the two wings (42a and 42b) of the pinching passage (23) has, between the surfaces of the two indentations (11a and 11b), an opening whose width will diminish towards its end that is opposite to the core (41) of the pinching passage (23), the width of the opening of the pinching passage (23) is at most slightly smaller than twice the thickness of the wall of the flexible tube to be pinched, and the pinching device (1) is disposable and performs an operation of the tube closing on itself in the pinching region preventing any passage of fluid into the tube. |
