Unlocking device

Abstract

The invention relates to an unlocking device. The device comprises a plurality of unlocking ends and a flexible transmission part; the unlocking ends comprise supporting parts and unlocking parts, andthe unlocking parts are arranged on the supporting parts; the flexible transmission part is connected with the supporting parts and used for transmitting unlocking power; and the unlocking parts areused for acting relative to the supporting parts under driving of unlocking power and extruding bolts in positioning holes through the action so as to drive the bolts to perform unlocking. According to the unlocking device, the structure is compact, the size is small, the use is convenient and flexible, body frame plates can be unlocked, and the unlocking ends can be flexibly placed according to needs to correspond to the corresponding bolts and positioning holes so as to be matched with the body frame plates of different models and sizes and meet different unlocking requirements, so that theuniversality are significantly improved.

Description

technical field [0001] The invention relates to the technical field of chemotherapy equipment, in particular to an unlocking device for body frame boards. Background technique [0002] Radiation therapy (referred to as radiotherapy) is one of the main means of treating malignant tumors at present; domestic radiation therapy has entered the stage of precision treatment as a whole. During the process of precision radiotherapy, keeping the patient's position fixed is the key to precision treatment. [0003] In the prior art, a set of fixation devices are usually used to fix radiotherapy patients, and the fixation devices include: a thermoplastic film (or called a positioning film) and a body frame plate (or called a positioning plate), wherein the body frame plate It is a flat plate, a number of positioning holes are respectively arranged on the edge of the body frame plate, edge strips are respectively arranged on the edges on both sides of the thermoplastic film, and fixing h...

AI Technical Summary

Problems solved by technology

[0004] After the traditional fixation device is fixed to the patient, it can only be unlocked by the medical staff, but the patient cannot unlock it by himself, which makes the patient prone to suffocation, aspiration pneumonia, and even death when symptoms such as nausea and vomiting occur. In order to solve this problem, some unlocking devices with unlocking function or fixing devices with unlocking function are disclosed in the prior art, such as Chinese patents CN 109125957A, CN109453471A, etc., so that patients can unlock themselves in emergency situations, improving safety However, there is usually the problem of poor versatility in the existing unlocking devices, because the existing unlocking devices all need a body with the corresponding model and size (when the model and size are different, the position and the number of the positioning holes on the body frame plate are usually different). Only when the frame board is matched can the positioning holes on the body frame board be accurately aligned, and then the unlocking function can be realized, resulting in poor versatility; device, resulting in high cost; in addition, for the same type or size of the body frame board, according to the different parts of the patient's radiotherapy, the position of the latch that needs to be unlocked is also different (such as patients with head and neck radiotherapy and patients with chest radiotherapy have a larger discrepancies), resulting in the inapplicability of existing unlocking devices

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