| 摘要 |
A tourniquet in the form of a ring in which the inner wall is a membrane of latex rubber forming a toroidal chamber with its support. Inside the chamber, there are provided a series of strings, each having one end secured to the support of the ring while the other end is secured to a toothed annular member inside the chamber. A pinion operable from outside the ring, is in mesh with this toothed member so that when rotated in one direction, the strings act on the inner rubber wall to expand it inwardly and thus close the ring opening.
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