Backflow-preventing hemostatic propeller

Abstract

The invention provides a backflow-preventing hemostatic propeller. The backflow-preventing hemostatic propeller comprises a barrel (1), a propelling pipe (2), a piston (3), a pipe barrel connector (4), an expanding part (5) and a piston rod (6), wherein a threaded groove (7) with a continuous spiral track is formed in the circumference of the piston (3); a backflow-preventing limiting concave part(8) is formed in the front end of the threaded groove (7) along the circumference of the piston (3); a threaded protrusion (9) with a continuous spiral track is arranged on the circumference of the inner wall of the barrel (1); a backflow-preventing limiting clamping block (10) is arranged at the front end of the threaded protrusion (9) along the circumference of the inner wall of the barrel (1);a backflow-preventing one-way blocking structure is arranged at the end, connected with a liquid outlet of the barrel (1), of the pipe barrel connector (4) and comprises a supporting blocking frame (12) and a backflow-preventing one-way blocking piece (13); and the backflow-preventing one-way blocking piece (13) is of an inner-outer-layer structure. The backflow-preventing hemostatic propeller issimple in structure, convenient to operate and easy to propel, and the backflow-preventing effect of the hemostatic propeller is improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an anti-reflux hemostat propeller. Background technique [0002] Penetrating injury is one of the main injury types of trauma. Penetrating injury can cause a hollow wound on the human body, and the hollow wound can cause massive blood loss. At present, the commonly used first aid hemostasis methods are commonly used and simple hemostasis methods, the main hemostasis drugs and bandages, but no matter which of the two is the hemostasis operation on the patient's body surface, and the bleeding point of the penetrating injury is located in the cavity. Internally, the effect of hemostatic operation on the body surface is relatively limited, and it is often ineffective for hemostasis on common deep cavity wounds. Hemostasis cannot be achieved by ordinary bandaging, and it is difficult to achieve hemostasis by ligation and compression. [0003] In the prior art, there have also been tech...

AI Technical Summary

Problems solved by technology

At present, the commonly used first aid hemostasis methods are commonly used and simple hemostasis methods, the main hemostasis drugs and bandages, but no matter which of the two is the hemostasis operation on the patient's body surface, and the bleeding point of the penetrating injury is located in the cavity. Internal, so the effect of hemostasis on the body surface is relatively limited, and it is often ineffective for common deep cavity wounds. Hemostasis cannot be achieved by ordinary bandaging, and it is difficult to achieve hemostasis by ligation and compression

[0003] In the prior art, there have also been technical means to go deep into the cavity wound to stop bleeding, but the disadvantage is that the front end of the injection vessel is relatively thick. For penetrating wounds, such as gunshot wounds and stab wounds, because of the small wound area, there are It is not easy to insert into the wound, the efficiency is low, and it is easy to aggravate the shortcomings of the patient's pain

In addition, a hemostatic agent propeller can be used for hemostasis, but the problem in the prior art is that the propeller is not easy to propel due to its slow speed during the propulsion process. , leading to blood backflow, causing the hemostatic agent to agglomerate and block at the outlet

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