Tourniquet buckle with timing function

Abstract

The invention relates to a tourniquet buckle with a timing function. The tourniquet buckle comprises a mechanical timer, an external buckle body, an internal buckle body and a tourniquet constraint band fixed on the external buckle body, wherein the external buckle body is provided with a constraint band external through hole, the internal buckle body comprises a compression block, a displacement protruding block and a manual pressing block, the compression block is provided with a constraint band internal through hole, and the mechanical timer comprises a time panel, a pointer, a winding mechanism and a winding mechanism rotary shaft; when the pointer of the mechanical timer is located at the zero line on the time panel (loosened state), a disc protrusion is abutted against the displacement protruding block, the constraint band internal through hole is communicated with the constraint band external through hole, and springs are in a contraction state; when the pointer is located at the non-zero line on the time panel (buckled state), the disc protrusion does not contact with the displacement protruding block, the constraint band internal hole and the constraint band external hole are staggered, and the springs are in a natural state. The tourniquet buckle has the advantages that the tourniquet can be loosened in a timed manner, and accidents of limb ischemia or limb necrosis of infant patients due to the fact that the tourniquet is forgotten to be loosened can be avoided effectively.

Description

technical field [0001] The invention relates to a cuff fixing device, in particular to a cuff timing buckle. Background technique [0002] The cuff is mainly used for venous blood sample collection and infusion, compressing the vein to slow down the return of venous blood. Temporarily closed to prevent venous return. The cuff is usually used together with blood collection tubes, blood collection needles and accessories when collecting blood samples. [0003] The current clinical use of the cuff is that the medical staff manually tighten the cuff on the patient's limb, and loosening the cuff also needs to be done manually, and the cuff cannot be loosened automatically. This way of use has certain potential safety hazards, especially for infants, if the medical staff forget to loosen the cuff after puncturing, the cuff will be covered by the infant's clothing or wrap, and the infant cannot speak, which will cause the cuff to be crushed. Ischemia occurs in limbs with tight v...

AI Technical Summary

Problems solved by technology

[0003] The current clinical use of cuffs is that medical staff manually tighten the cuffs on the patient's limbs, and loosening the cuffs also needs to be done manually, and the cuffs cannot be loosened automatically

This way of use has certain potential safety hazards, especially for infants, if the medical staff forget to loosen the cuff after puncturing, the cuff will be covered by the infant's clothing or wrap, and the infant cannot speak, which will cause the cuff to be crushed. Ischemia occurs in the limbs with tight veins, and severe accidents may cause limb necrosis

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