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Micro puncture system for percutaneous biliary drainage (PTCD)

A micro-puncture, bile duct technology, applied in the direction of guide wire, guiding needle, catheter, etc., can solve problems such as failure, patient injury and drainage, and achieve the effect of reducing operating instruments, preventing bile leakage or blood leakage, and simplifying surgical procedures

Pending Publication Date: 2022-04-15
安徽硕金医疗设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to design a percutaneous biliary drainage (PTCD) micropuncture that is easy to puncture, does not puncture the bile duct, and has a high success rate of drainage for the existing puncture system that easily causes patient injury and drainage failure. system

Method used

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  • Micro puncture system for percutaneous biliary drainage (PTCD)
  • Micro puncture system for percutaneous biliary drainage (PTCD)
  • Micro puncture system for percutaneous biliary drainage (PTCD)

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Such as Figure 1-5 shown.

[0039] A micropuncture system for percutaneous biliary drainage, consisting of five parts: 1. Puncture needle 1, 2. Inner core of puncture needle, 3. Small elbow and thin guide wire 2, 4. Thin head dilation tube 3 and 5. Outer Sheath 4;

[0040] Such as figure 1 As shown, the head of the puncture needle 1 adopts a front-pointed rear arc or a long oblique structure (theoretically, the longer the slope of the oblique needle, the less the deviation during puncture), which increases the puncture sharpness of the puncture needle and avoids puncture. Time offset to increase the accuracy of puncture; the inner core of the puncture needle is installed in the puncture needle, not shown in the figure.

[0041] The length of the needle hole of the puncture needle is twice the diameter of the guide wire, which is beneficial f...

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Abstract

A micro puncture system for percutaneous biliary drainage is characterized by comprising a puncture needle (1), a puncture needle inner core is mounted in the puncture needle (1), and a needle head of the puncture needle (1) is of a structure with the front pointed and the rear arc or of a long inclined plane structure (101); the guide wire (2) is used for being inserted into the puncture needle (1), and one end, inserted into the puncture needle, of the guide wire (2) is provided with a small elbow structure (201); the expansion tube (3) can enter the bile duct along the guide wire (2); the front section is thinner than the middle-rear section and is of an arc-shaped structure (301); and the outer sheath tube (4) can be inserted into the body of the patient through the expansion tube (3). The puncture needle, the guide wire and the expansion tube are improved, so that puncture and treatment can be smoothly carried out.

Description

technical field [0001] The invention relates to a medical device, in particular to a puncture device, in particular to a percutaneous biliary drainage (PTCD) micropuncture system. Background technique [0002] As we all know, percutaneous transhepatic biliary drainage (PTCD) refers to a series of techniques for percutaneous transhepatic puncture of the bile duct and placement of a drainage tube under the guidance of imaging equipment to allow bile to flow to the outside of the body or the duodenum. Among them, the puncture target needs to be selected during puncture. Generally, the straight bile duct branch is selected, and it is not suitable to be close to the hepatic hilum. The patient holds his breath and punctures. After reaching the target point, pull out the needle core and withdraw the needle while drawing. When the bile is drawn, it indicates that the needle tip is in the biliary tract. Insert the guide wire, withdraw the puncture needle, and then insert the dilation...

Claims

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Application Information

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IPC IPC(8): A61M25/06A61M25/09
CPCA61M25/06A61M25/065A61M25/09A61M25/0662A61M2025/09058
Inventor 李麟荪金道明常永焕
Owner 安徽硕金医疗设备有限公司
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