US 11,864,772 B2
Tourniquet
Dawei Zhu, Shanghai (CN); Bifeng Shen, Shanghai (CN); Lianghui Fu, Shanghai (CN); Xinyu Shen, Shanghai (CN); and Minjie He, Shanghai (CN)
Assigned to ENODAR MEDICAL (SHANGHAI) CO., LTD., Shanghai (CN)
Filed by ENODAR MEDICAL (SHANGHAI) CO., LTD., Shanghai (CN)
Filed on Jan. 27, 2021, as Appl. No. 17/160,101.
Application 17/160,101 is a continuation in part of application No. PCT/CN2019/097359, filed on Jul. 23, 2019.
Claims priority of application No. 201910305763.X (CN), filed on Apr. 16, 2019.
Prior Publication US 2021/0145454 A1, May 20, 2021
Int. Cl. A61B 17/132 (2006.01); G04F 10/00 (2006.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01)
CPC A61B 17/1325 (2013.01) [G04F 10/00 (2013.01); A61B 2017/00128 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/12004 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A tourniquet, which comprises
a fixed module including a belt plate and a connecting belt;
wherein the belt plate comprises a through hole, and a protrusion formed by extending upward from a circumferential side of the through hole and retracting inward at a top end to form an annular opening, and both ends of the belt plate are respectively connected to both ends of the connecting belt which has an adjustable length;
a hemostatic module including a knob, a pressure stud and a hemostatic pad;
wherein the knob is wrapped around the protrusion and is rotatable relative to the protrusion;
the pressure stud penetrates the knob and the protrusion, and the upper part of the pressure stud is threadedly connected with the knob, and the lower end of the pressure stud is fixedly connected with the hemostatic pad, and the pressure stud threadedly matched with the knob moves downward by rotating the knob to drive the hemostatic pad to press down; and
an indicating module including a floating nut, a spinning press block, a spring, a connecting piece, a pointer and a dial;
wherein the floating nut is arranged around the pressure stud, with the upper end of the floating nut being fixedly connected to the knob, and the lower end of the floating nut being provided with a support part;
the spinning press block is arranged around the floating nut, with an inner side of the spinning press block abutting against the floating nut, an outer side of the spinning press block being in thread-fit connection with an inner side of the protrusion, and the lower end of the spinning press block being supported by the support part; and the spinning press block is provided with a holding hole penetrating through from top to bottom;
the spring is sheathed outside the floating nut, with the upper end of the spring abutting against a top inner surface of the protrusion, and the lower end thereof abutting against the upper end of the spinning press block;
the connecting piece is disposed in the holding hole, the connecting piece does not rise along with the spinning press block, but rotates along with the spinning press block, and the lower end of the connecting piece is fixedly connected to the pointer;
the pointer is arranged horizontally, and one end of the pointer is fixedly connected to the connecting piece and rotates with the connecting piece, and the other end of the pointer points to different pressure values on the dial.