Machining equipment for bent adjustable cryoablation needle

Abstract

The invention relates to the technical field of automatic assembly, in particular to machining equipment for a bent adjustable cryoablation needle. The machining equipment comprises a straightening mechanism, a lifting mechanism and a ring sleeving mechanism, wherein the straightening mechanism is mounted on a rack and used for straightening a connecting pipe provided with a connecting pipe fixingpart and fixing sealing ring baffles at the bottom end of the connecting pipe, the lifting mechanism is installed on the rack and located below the straightening mechanism, the working end of the lifting mechanism is vertically arranged upwards, the lifting mechanism is used for driving the ring sleeving mechanism to move close to or away from the straightening mechanism, and the ring sleeving mechanism is fixed to the movable end of the lifting mechanism and used for clamping a sealing ring to the gap between the pair of sealing ring baffles at the bottom of the connecting pipe. According tothe scheme, labor cost is reduced, production efficiency is improved, and assembly success rate is high.

Description

technical field [0001] The invention relates to the technical field of automatic assembly, in particular to a processing equipment for curved adjustable cryoablation needles. Background technique [0002] Cryoablation, a treatment modality that uses low temperatures to destroy diseased tissue, is considered an efficient and minimally invasive method for treating malignant tumors. The cryoablation technique is easy to operate, has few complications, and is effective in analgesia. Moreover, the boundary of the ice ball formed by ablation is clear and easy to observe, and it can safely ablate lesions near large blood vessels or important organs. Cryoablation can also adopt the method of multi-needle freezing, so that the ablation range is wider, and it is suitable for large lesions and lesions with irregular shapes. [0003] The target area (that is, the effective freezing area) is located at the front of the cryoablation needle, and its length determines the size of the freez...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN201910751316.7 discloses a curved adjustable cryoablation needle, which includes an adjustment part and a fixed part. The adjustment part can move relative to the fixed part to adjust the length of the target area: the fixed part includes a needle shaft and a rear section of heat insulation Pipe, air intake pipe fittings and return air pipe, the rear heat insulation pipe is a curved pipe, the rear end of the needle bar is fixedly connected with the front end of the rear heat insulation pipe, and the needle bar communicates with the rear heat insulation pipe to form an accommodating cavity; Both the trachea piece and the air return pipe are inserted into the accommodating chamber from the rear end of the rear heat-insulating pipe; the adjustment parts include the front-section heat-insulating pipe and the mandrel, and the front-section heat-insulating pipe is axially slidably arranged in the accommodating chamber to adjust the target area. length; the air intake pipe passes through the front heat insulation pipe and extends into the needle bar; the mandrel is inserted from the rear end of the rear heat insulation pipe and is fixedly connected with the front heat insulation pipe through the middle connecting pipe, and the middle connecting pipe is bendable It is installed in the heat insulation tube at the back section, which solves the technical problems of the existing cryoablation needles, which cause complicated treatment operations and easy damage to surrounding healthy tissues due to the fixed target area

[0005] Among them, the assembly of the front-end sealing components requires a lot of manpower, and the degree of automation is not good, which seriously affects the production efficiency

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