Operation device with channel expansion and maintaining functions

Abstract

The invention provides an operation device with channel expansion and maintaining functions. The operation device comprises a tube sheath assembly, a balloon, a gas-liquid infusion component and a guide rod, wherein the head part of the tube sheath assembly is connected with the balloon; the outer edge of the tube sheath assembly is connected with the gas-liquid infusion component; the guide rod is mounted in the tube sheath assembly in an inserting way; the tube sheath assembly comprises a tube sheath, a one-way sealed cavity control valve, a gas-liquid guide rod, a gas-liquid control valve and a seal ring; an axial through hole is formed in the tube sheath; a sealed cavity is formed in the tail part of the tube sheath; the one-way sealed cavity control valve is mounted in the sealed cavity in a sleeving way; the seal ring is mounted at the tail end part of the sealed cavity; when the operation device is in use, the guide rod sequentially penetrates through the seal ring and the one-way sealed cavity control valve and is mounted in the axial through hole of the tube sheath in an inserting way; the gas-liquid guide rod is arranged on the outer edge of the tube sheath; a through hole of the gas-liquid guide rod is communicated with the axial through hole of the tube sheath; since the one-way sealed cavity control valve is mounted in the sealed cavity, led-in gas-liquid flows into the balloon only through the axial through hole of the tube sheath unidirectionally; the gas-liquid control valve used for controlling in-out of the gas-liquid is arranged on the gas-liquid guide rod.

Description

technical field [0001] The invention relates to a surgical device with the functions of channel expansion and maintenance, which relates to a multifunctional medical device with the functions of channel expansion, observation, adjustment and maintenance in surgical operations. Background technique [0002] In the current minimally invasive surgery, pneumoperitoneum is widely used to expand the surgical field of view in order to obtain a good surgical field of view and operating environment. However, some parts of the human body are relatively densely organized, and it is difficult to achieve the purpose of expansion through simple pneumoperitoneum. Usually, a special expansion device is used for pre-expansion, and then the corresponding operation is performed. [0003] For example, the preliminary operations of minimally invasive surgery such as retroperitoneal approach and pelvic extraperitoneal approach are roughly as follows: [0004] 1. Clinical retroperitoneal approach...

AI Technical Summary

Problems solved by technology

[0007] On the one hand, self-made balloons made of medical gloves cannot guarantee sterility, and there is a greater risk of infection for patients; The bursting will bring troubles to the surgeon; in addition, blind water filling or inflation expansion in a non-visual state may also injure innocent tissues and organs, and blind expansion in the case of pleural damage will also cause pneumothorax, and then cause Minimally invasive surgery failed, switched to open surgery

[0008] The Chinese patent with the application number 200520116361.9 produced a set of special dilators. Although the structure is relatively simple, if you need to put an endoscope for observation during use, you need to use a special clip to close the middle of the catheter before pulling out the mandrel before you can replace it. , the operation steps are cumbersome, and the device loses its use value after the expansion is completed. Compared with a single expansion function, the manufacturing cost is high and the price is relatively expensive, which is not conducive to large-scale clinical use

[0009] Therefore, during the operation, the existing devices have the disadvantages of inconvenient operation, prone to infection, easy to burst, invisible expansion process, and high cost, which are not conducive to large-scale clinical use. Therefore, it is necessary to design a new Products to meet the actual surgical needs and benefit the majority of patients

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