Liquid medicine spraying device in endoscope biopsy channel

Abstract

The invention relates to a liquid medicine spraying device in an endoscope biopsy channel. The device comprises a handle, an outer tube, a middle tube, an inner tube and a protection device, the far end of the outer tube is fixedly connected to the handle, the inner tube is sleeved with the middle tube, the middle tube is sleeved with the outer tube, a handle propeller is arranged in the handle, and the far end of the inner tube and the far end of the middle tube are both fixedly connected to the handle propeller; the protection device is arranged between the inner tube and the outer tube in asleeved mode, and the near end of the protection device makes contact with the far end of the middle tube; and a spraying head is arranged at the near end of the inner tube. The spraying device is simple to operate, the inner tube, the middle tube and the protection device can be pushed out at the same time only by operating the handle, the protection device and the protection film are arranged outside the spraying head of the inner tube in a covering mode, liquid medicine is prevented from polluting an endoscope lens, spraying operation is conducted on a cavity of a patient, the inner tube,the middle tube and the protection device can return to the outer tube at the same time after being used, and endoscopic surgery is not affected.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a medicinal liquid spraying device in the forceps channel of an endoscope. Background technique [0002] In endoscopic surgery, due to the existence of various body fluids and mucus in the natural cavity of the human body, it affects the endoscopic field of view and increases the difficulty of the operation. In order to clear the field of view of endoscopic surgery, accurately examine the internal lesion tissue of the human body, and perform endoscopic surgery accurately, disposal devices such as spraying devices are required to be used with endoscopes. The device is widely used in endoscopic clinic and surgery because of its convenient operation and low price. [0003] Since the clinical features of the diseased tissue in the patient's cavity are complicated, after the conventional spraying device enters the body cavity through the endoscope forceps, the spraying li...

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Problems solved by technology

[0003] Since the clinical features of the diseased tissue in the patient's cavity are complicated, after the conventional spraying device enters the body cavity through the endoscope forceps, the spraying liquid may cause pollution and block the endoscope lens, affecting the spraying or flushing effect. The adverse effects of the operation will affect the progress of the operation and increase the difficulty of the endoscopic clinical operation

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