Integrated incision and dilatation knife and using method thereof

Abstract

The invention relates to an integrated incision and dilatation knife and a using method thereof; the integrated incision and dilatation knife comprises a metal knife head, an insulating sheath tube, an inner circuit, a handle, a dilatation balloon, a pressure adjusting pipeline and an adjustable pressure control meter; the metal knife head is conical; the larger end of the metal knife head is fixedly connected with one end of the insulating sheath tube; the other end of the insulating sheath tube is connected with the handle; the inner circuit is arranged in the insulating sheath tube; the two ends of the inner circuit are connected with the metal knife head and the handle respectively; a control switch is arranged on the handle; the dilatation balloon is arranged around the periphery of the insulating sheath tube and is integrally connected with the metal knife head; the pressure regulating pipeline is fixedly arranged along the outer surface of the insulating sheath tube; one end of the pressure regulating pipeline is communicated with the dilation balloon; the other end of the pressure regulating pipeline is provided with a first branch tube and a second branch tube which are communicated in a Y shape; the first branch tube is connected with the adjustable pressure control meter; the second branch tube is connected with an external pressure pump; and the adjustable pressure control meter is linked with the pressure pump. According to the invention, incision and dilatation are integrated; the dilatation size is quantitative and adjustable; the working efficiency is improved; and the tissue damage degree is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an integrated incision and expansion knife and its usage method. Background technique [0002] Pancreatic pseudocyst (PP) is one of the common local complications of severe pancreatitis. It is the accumulation of pancreatic necrotic tissue and exuded pancreatic juice in the peripancreatic, lesser omentum, and greater omentum, which stimulates the surrounding connective tissue. Hyperplastic, progressive fibrous encapsulated cysts. Endoscopic ultrasonography (EUS)-guided transgastric drainage is currently one of the main methods for minimally invasive treatment of pancreatic pseudocyst. Compared with traditional surgical drainage, this technique has the advantages of less trauma, less risk, and faster recovery. We can locate the pancreatic pseudocyst by endoscopic ultrasonography, choose the best needle entry point, accurately puncture the cyst and place a stent for drain...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides an integrated incision and expansion knife and its usage method, which can not only efficiently puncture the incision point to be cut in the incision mark, but also quantitatively control the incision by dilating the balloon The size of the caliber can solve the problem that the existing technology proposed in the above-mentioned background technology not only has low work efficiency, but also increases the risk of tissue damage and complications

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