Hemostatic clamp opened by spring force and provided with degradation structure

Abstract

The invention discloses a hemostatic clamp opened by spring force and provided with a degradation structure, belongs to the technical field of medical hemostatic equipment, and relates to a hemostatic clamp which is used under an endoscope, provided with a degradation structure and opened by spring force. The hemostatic clamp is composed of a clamp part and an operation part. The clamp part is composed of a clamp tube, an elastic piece, a positioning pin, a clamping piece, a sliding wheel, a spring, a connecting pin, a clamping piece fixing seat, a mandrel and a connecting tube; and the operating part of the hemostatic clamp is composed of a spring hose, a connecting pin, a rotating ring, a rotating ring fixing seat and a hook. The hemostatic clamp is simple and ingenious in structural design and convenient and flexible to operate. A polylactic acid degradable material is adopted, a protruding degradable hanging block is installed on the elastic piece at the bottom of the clamping piece, and the falling-off time of the clamping piece is controlled through the degradable structure. A spring and a roller on the positioning pin are used for controlling the opening of the clamping piece and discharging the clamping piece out of the body along with body fluid. By designing the degradable structure, the loosening time of the clamping piece of the hemostatic clamp is controlled, and secondary injury caused by long-term retention in vivo after an operation is avoided.

Description

technical field [0001] The invention belongs to the technical field of medical hemostatic equipment, and relates to a hemostatic clip with a degradable structure used under an endoscope and opened by spring force. Background technique [0002] With the development of medical technology, the method of using hemostatic clip to stop bleeding under endoscope is more and more mature. The clamping device can also be used as a marker under endoscopy and X-ray monitoring. The clamping device can also be used as an anchoring device for feeding tubes and other instruments. The clamping device can even be used as a closure treatment device for conservative treatment of gastrointestinal perforation . However, the current hemostatic clip is made of all-metal material, and the corrosion effect of the clip over time is unknown, so the loosening time of the clip cannot be predicted, and it may stay in the body for a long time. On the one hand, it will cause wound lesions, and on the other ...

AI Technical Summary

Problems solved by technology

However, the current hemostatic clip is made of all-metal material, and the corrosion effect of the clip over time is unknown, so the loosening time of the clip cannot be predicted, and it may stay in the body for a long time. On the one hand, it will cause wound lesions, and on the other hand, it will affect CT and other inspection items

[0003] In the patent literature published by China with the patent application number CN108013914A, a circle of stop steps is provided at the tail of the inner wall of the clamp tube. On the stop step, the stop pin is fixed at the front of the clamp tube to limit the clip holder from sliding out of the clamp tube, but the process of clip loosening cannot be predicted, which will affect the examination and physical recovery

[0004] The current hemostatic clip is made of all-metal material, and the corrosion effect of the clip over time is unknown, so the loosening time of the clip cannot be predicted, and it may stay in the body for a long time. On the one hand, it will cause lesions in the wound and affect the health of the body

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