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Guide wire passing anti-incarceration calculus removal mesh basket

A technology of guide wire and stone mesh, which is applied in the field of medical equipment, can solve problems such as guide wire, basket bile duct difficulty, and damage to the duodenal sphincter mucous membrane

Inactive Publication Date: 2021-09-10
刘从锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in practical application, the head end of the existing stone extraction basket design is a welded connector of the wire basket, and the guide wire cannot pass through the middle of the head end, so that there will be a pinch between the basket catheter and the guide wire when entering and leaving the bile duct along the guide wire. The included angle will make it difficult for the basket to enter the bile duct and damage the mucous membrane of the duodenal sphincter and the bile duct. Therefore, we propose an anti-incarceration stone removal net basket through a guide wire.

Method used

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  • Guide wire passing anti-incarceration calculus removal mesh basket
  • Guide wire passing anti-incarceration calculus removal mesh basket
  • Guide wire passing anti-incarceration calculus removal mesh basket

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Experimental program
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Effect test

Embodiment 1

[0029] see Figure 1-7 , the present invention provides a technical solution:

[0030] An anti-incarceration net basket for taking stones through a guide wire, comprising a pusher 1, a push rod 2, a guide core 4, a basket metal wire 5 and a tapered head 6, the pusher 1 is composed of a handle 11 and a catheter 12, the handle 11 The inside is provided with a slot, and the inside of the catheter 12 is set hollow as a contrast agent injection cavity. The slot provided inside the handle 11 is connected to the hollow inside of the catheter 12. The surface of the catheter 12 is covered with a push rod 2, and the inner wall of the push rod 2 is fixed. A fixed block 3 is connected, and the inside of the fixed block 3 is fixedly connected with a guide core 4 . The surface of the guide core 4 is provided with a wire basket wire 5 , and one end of the wire basket wire 5 is inserted in the tapered head 6 .

Embodiment 2

[0032] On the basis of Embodiment 1, the present invention provides a technical solution:

[0033] An anti-incarceration net basket for taking stones through a guide wire, comprising a pusher 1, a push rod 2, a guide core 4, a basket metal wire 5 and a tapered head 6, the guide core 4 is installed in a slot provided inside the handle 11 and One end of the guide core 4 passes through the handle 11 and is inserted inside the guide tube 12. By pushing the push rod 2 to slide on the pusher 1, the push rod 2 is connected to the guide core 4 installed on the fixed block 3 and inserted into the guide tube 12, further making the guide core 4 The fixed wire basket wire 5 on the core 4 pushes forward;

[0034] The side surface of the conduit 12 near the handle 11 is provided with two sets of threaded holes and the two sets of threads are inserted with adjusting bolts 8, the surface of the guide core 4 is located at the position where the threaded holes are opened on the surface of the c...

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Abstract

The invention discloses a guide wire passing anti-incarceration calculus removal mesh basket, and belongs to the technical field of medical equipment. A group of open holes are formed in the surface, penetrating through a conical head, of each group of mesh basket metal wires, so that the whole mesh basket metal wires can be pulled out by pulling one ends of the mesh basket metal wires with force, and in the same way, after one mesh basket metal wire is pulled out, the remaining mesh basket metal wires are pulled out; the mesh basket at the front end is disintegrated and separated from the incarcerated calculus, at the moment, an incarcerated calculus removal mesh basket catheter can be smoothly taken out, when the calculus removal mesh basket is incarcerated, the mesh basket metal wires can be directly pulled out to disintegrate the mesh basket, the mesh basket is separated from the incarcerated calculus, the incarcerated calculus removal mesh basket is taken out, and the problem that the incarceration of the mesh basket cannot be taken out is solved; and the head end of the conical head is arranged to be in a gradually-thin conical head shape, a guide wire cavity is formed in the middle of the conical head, the guide wire can pass through the middle of the mesh basket, the mesh basket can be guided to move in the guide wire direction, and the mesh basket can enter the bile duct more smoothly without damaging the mucous membrane of the digestive tract.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an anti-incarceration stone removal net basket through a guide wire. Background technique [0002] In endoscopic retrograde cholangiopancreatography (ERCP), about 80% of bile duct stones are removed. In clinical operation, the stone basket is often used to remove stones in the bile duct, including small stones, large stones, sand-like stones, mechanical stones, etc. Residual stones left in the bile duct after lithotripsy. However, when encountering larger stones in clinical practice, during the stone extraction process using the stone extraction basket, the stones captured by the basket may be embedded in the wire of the basket, resulting in the problem that the stone extraction basket cannot be removed due to stone extraction. The clinical operator brings great distress and surgical risk. [0003] After retrieval, Chinese Patent No. CN201920677261.5 discloses an anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/2212
Inventor 刘从锋
Owner 刘从锋