Universal through-endoscope puncture instrument for multiple organs

A multi-organ and device technology, applied in the field of medical devices, can solve the problems of complicated operation and training of personnel, missed diagnosis, and low utilization rate of equipment, and achieve the effect of reducing cross-contamination and simplifying operation procedures.

Active Publication Date: 2014-03-26
常州德天医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blood coagulates in the syringe and needle, which may cause blockage of the tube and affect the operation
It may also be due to excessive blood clots, a large number of blood cells affect the microscopic field of view during the examination, resulting in missed diagnosis
In addition, the exi

Method used

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  • Universal through-endoscope puncture instrument for multiple organs
  • Universal through-endoscope puncture instrument for multiple organs
  • Universal through-endoscope puncture instrument for multiple organs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 As shown, the endoscopic multi-organ universal puncture instrument of the present invention includes a V-shaped component, a flexible plastic tube, a flexible needle tube, a guide wire and an external fixator. Wherein the V-shaped part includes a side channel part, a straight channel part and a needle tube connection part. Wherein the side channel and the straight channel meet inside the connecting part of the needle tube, and the end of the side channel part is provided with a plastic seal for closing the side channel, especially a sealing plug, which is used to block the gas that may come from the straight channel and the needle tube. The end of the straight channel part is provided with an interface or connector that is movably connected to the syringe, and its specific structure is as follows: figure 2 As shown, the angle between the side channel and the straight channel is 30°, and the axis of the inner tube of the side channel can be straight or...

Embodiment 2

[0049] Pancreatic biopsy guided by endoscopic ultrasound:

[0050] (1) The specifications of the puncture needle device are: tube length 160cm, needle tip diameter 20ga, needle body section diameter 19ga, guide wire diameter 21ga, metal needle tube 8cm longer than plastic tube. When puncture sampling, the syringe is preferably in a negative pressure state, the negative pressure condition is a suction space of 5 mL, and 2 mL of air is reserved before the syringe piston is fixed at negative pressure.

[0051] (2) After the endoscope is inserted into the duodenum and the puncture site is established, the plastic tube is inserted through the forceps channel, and after reaching the puncture site, the plastic tube is fixed at the optimal length position with a plastic tube external fixator. The doctor holds the mirror with one hand, and can assist the other hand to operate the needle tube handle and guide wire handle located in the V-shaped part at the same time. Or have an assista...

Embodiment 3

[0057] Tracheal Lymph Node Biopsy Guided by Tracheal Endoscopic Ultrasound:

[0058] (1) The specifications of the puncture needle device are: tube length 160cm, needle tip diameter 20ga, needle body section diameter 19ga, guide wire diameter 21ga, metal needle tube 8cm longer than plastic tube. When puncture sampling, the syringe is preferably in a negative pressure state, the negative pressure condition is a suction space of 5 mL, and 2 mL of air is reserved before the syringe piston is fixed at negative pressure.

[0059] (2) According to the distribution map of tracheal lymph nodes, after the endoscope is inserted to the target puncture site, a plastic tube is inserted through the forceps channel, and after reaching the puncture site, the plastic tube is fixed at the optimal length position (for example, 35 cm away from the incisors) with a plastic tube external fixator. place). The doctor holds the mirror with one hand, and can assist the other hand to operate the needle...

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Abstract

The invention discloses a universal through-endoscope puncture instrument for multiple organs. The universal through-endoscope puncture instrument for the multiple organs comprises a V-shaped component, a flexible plastic tube, a flexible needle tube, a guide wire and an external fixator. The universal through-endoscope puncture instrument with the fixed length is applicable to puncture suction through an alimentary canal ultrasonic endoscope, applicable to puncture suction through a trachea ultrasonic endoscope, and also applicable to intravascular injection, submucosal injection, deep biopsy and the like through a common direct-sight endoscope, and the requirement that the guide wire can be not pulled out in the process of puncture is met.

Description

technical field [0001] The invention relates to a general-purpose puncture instrument for multiple organs through endoscopy, in particular to a multifunctional puncture needle suitable for endoscopic ultrasonography of the digestive tract and endotracheal ultrasonography, and belongs to the technical field of medical instruments. Background technique [0002] Endoscopic puncture technology is a minimally invasive diagnosis and treatment technology completed through endoscopic working channels. Although it belongs to advanced endoscopic technology, it has been developed maturely all over the world in the past 30 years. The technology is to obtain diagnostic specimens of cells, tissues, and fluids through puncture, and can also perform puncture and aspiration therapy, and can also achieve the purpose of injection therapy. The endoscopes currently used for puncture generally include ultrasound endoscope and non-ultrasound endoscope (i.e. ordinary endoscope) puncture. Ultrasoni...

Claims

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Application Information

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IPC IPC(8): A61B10/00A61B17/34
Inventor 王国本张发明
Owner 常州德天医疗器械有限公司
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