Embracing breast tissue fixing device for nuclear magnetic environment

Abstract

The invention discloses an embracing breast tissue fixing device for nuclear magnetic environment, and relates to the field of medical instruments. The embracing breast tissue fixing device comprisesfour identical finger plate mechanisms, and four finger plate mechanisms are distributed in a circumferentially symmetric manner, and the adjacent two finger plate mechanisms are interlaced. The embracing breast tissue fixing device can realize rapid adjustment and fixation for different sizes of breast tissue in nuclear magnetic environment, and solves the problem that the breast tissue flows andis difficult to fix, the gap between the curved fingers can be adjusted according to the needs of the doctor, providing a flexible and effective space for the operation and improving the efficiency of the operation.

Description

technical field [0001] The invention relates to the field of medical devices, and is particularly applied to breast interventional operations under the MRI environment. Background technique [0002] At present, in the breast interventional surgery under the MRI environment, the patient generally adopts a prone position, which will cause the breast tissue to sag naturally. During the operation, it is impossible to perform accurate operation on the lesion on the breast tissue. Therefore, it is necessary to design a device for fixing breast tissue, so as to limit the fluidity of breast tissue, assist the execution of biopsy surgery, ensure the accuracy of biopsy sampling, and improve the work efficiency of breast interventional surgery. For the design of the device for fixing breast tissue, some patents have been disclosed, but the currently designed device still has unresolved problems. The fixer includes an upper fixing ring, an intermediate ring and a lower fixing ring, wh...

AI Technical Summary

Problems solved by technology

For the design of the device for fixing breast tissue, some patents have been disclosed, but the currently designed device still has unresolved problems. The fixer includes an upper fixing ring, an intermediate ring and a lower fixing ring, wherein a plurality of connecting rods are arranged between the upper fixing ring and the lower fixing ring, and the connecting rods are composed of multiple groups of telescopic short rods, and a collar is arranged inside the middle ring, and the collar and the Corresponding to the connecting rod, although the patent can be adjusted according to the size of the patient's breast, the adjustable range is small, the operation is cumbersome, the fixing device cannot be quickly adjusted and locked, and the distance between the rings is too large to realize the imitation of the breast tissue. All-round fixation by hand

[0003] A similar breast fixation device also has an invention patent with the authorized notification number CN 105726137 B, which discloses a breast interventional tissue fixation device that can be used in an NMR environment. During surgery, the biopsy needle can complete the puncture of the tissue through the hollow grid. However, the structure of the fixed organization device is cumbersome, and it is necessary to define multiple components such as the first-level baffle, the second-level baffle, the third-level baffle, and the corresponding three-level positioning slide plate and driving screw. Fixed, but increases the weight and complexity of the overall device, while the position adjustment mechanism driven by the screw moves slowly, is noisy and cumbersome to operate, which increases unnecessary negative factors in the surgical environment

In addition, the hollow grid in this invention is a rigid structure, not easily deformed, and cannot be adjusted according to the specific needs of the doctor, so that the operable space of the operation is reduced, and the doctor can only customize the surgical plan according to the existing fixed gap, and then increase the The operation difficulty of the doctor is reduced, and the hardness of the rigid material also reduces the comfort of the patient; in summary, in order to solve the above-mentioned problems, the present invention designs an encircling breast fixation device imitating a horizontal palm

[0004] For the embracing fixing device, some patents are also disclosed. For example, the invention patent with the authorized notification number CN 105798855 B discloses an embracing wheel set fixing mechanism. The embracing mechanism mentioned in this invention includes an embracing mechanism and a clamping mechanism. , used to fix the wheels, but the embracing mechanism is mainly hinged by the power clamping arms arranged symmetrically up and down. The hinged connection mechanism is too bulky to provide the operating space required for surgery, and the rigid metal material reduces the flexibility of fixing. It makes it impossible to flexibly adjust the embracing space. In addition, the up-and-down symmetrical design can only be fixed in one direction, and cannot achieve all-round fixation and clamping. Therefore, the embracing fixation mechanism is not suitable for breast tissue

[0005] A comprehensive analysis of the existing breast fixation devices and embracing fixation devices found that there are still problems such as inflexible fixation methods, cumbersome device operations, complex structures, heavy weight, and narrow operating space, and the existing mechanisms designed with metal materials cannot It is applied in the nuclear magnetic environment, so it is necessary to design an encircling breast tissue fixation device for the nuclear magnetic environment

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