Clamping and locking medical instrument and use method thereof

Abstract

The invention discloses a clamping and locking medical instrument and a use method thereof. The medical instrument comprises: a first connecting element with one end provided with a clamping part and the other end provided with a clamping component extending along the axial direction; a second connecting element, wherein the side wall of the a second connecting element is provided with a connecting deviceconnected with the first connecting element, and an inner hole is formed in the axis; and a rod piece sequentially penetrating through the second connecting element and the clamping component to be connected with the first connecting element, wherein the rod piece pulls the first connecting element to move back and forth so as to adjust the clamping angle, after the human tissue is clamped in place, the clamping component is released so as to fix the angle of the clamping part, then the rod piece is released, and clamping is completed. According to the invention, human tissue can be rapidly clamped, the operation efficiency is improved, and operation is easy and convenient; the problem of overall rotation of the instrument caused by a thread rotation adjusting mode is also avoided; and by adopting a newly designed clamping structure, the axial size of the instrument is reduced, and the weight of the medical instrument, the load of a patient and the postoperative risk are reduced.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a clip-locking medical instrument and a use method thereof. Background technique [0002] Devices implanted in the human body are small and light, and often need to be left in the human body after the operation. For cardiac repair or therapeutic surgery, the quality requirements of such devices are particularly high. Due to the narrow size of the device, the fixation structure of the implanted device in the prior art is often complicated, and the volume is large, the operation is inconvenient, and there are problems such as low operation efficiency. Such as figure 1 In the medical device shown in the prior art, the clamping arm is opened and closed by rotating the driving screw, and the clamping arm is locked by the self-locking characteristic of the screw thread after the device clamps the tissue. However, this kind of medical device requires a large driving force ...

AI Technical Summary

Problems solved by technology

However, this kind of medical device requires a large driving force to drive the screw to move, which will cause the medical device to rotate under the action of torsional force and torque, which is not conducive to the operation

At the same time, since the rotation of the screw requires a large stroke in the axial direction, this increases the invalid distance of the device, resulting in a larger size of the medical device

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