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Thread leading device for catheter ligation

A lead guide and catheter technology, applied in the field of medical devices, can solve the problems of inconvenient operation of right-angle forceps, easy accidental injury to patients, etc., and achieve the effects of small occupied space, convenient hand-held, and convenient use.

Pending Publication Date: 2021-06-01
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a guide wire guide for catheter ligation to solve the problem that the right-angle forceps in the prior art are inconvenient to operate and easily injure patients by accident. Space, flexible operation, improve the safety of surgery

Method used

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  • Thread leading device for catheter ligation
  • Thread leading device for catheter ligation
  • Thread leading device for catheter ligation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of introducer for catheter ligation provided in this embodiment, such as Figure 1-Figure 3 As shown, an operating rod 2 is included, and a terminal head 1 is arranged at the end of the operating rod 2 , and a threading channel for silk threads to pass is provided on the operating rod 2 and / or the end head 1 . During the arterial duct ligation operation, it is not necessary to use the traditional right-angle forceps to introduce the silk thread by opening the arms, but only pass the silk thread through the threading channel of the catheter ligation introducer in this embodiment, and bypass the artery through the operating rod 2 The space under the catheter is used to introduce silk thread. The guide wire guide for catheter ligation in this embodiment takes up less space, making it more flexible and convenient to operate in the narrow space at the aortic arch, thereby improving the safety of the operation. The provided threading channel provides a stable wire chan...

Embodiment 2

[0038] This embodiment is another implementation mode of embodiment 1, such as Figure 4 As shown, the operating rod 2 is in a bent structure. One end of the operating rod 2 close to the end 1 is bent relative to the operating rod 2 . Therefore, the front end of the operating rod of the introducer in this embodiment can bypass the arterial duct during the catheter ligation operation, and the end with the end can be stretched out from the other side of the arterial duct, so that the silk thread can be bypassed by the arterial duct conveniently. The wire guide is more convenient and safe to use.

[0039] Preferably, the operating rod 2 is made of nickel-titanium alloy. Nickel-titanium alloy is a shape memory alloy that can be plastic in a cold state and can be fixed in a hot state. In the cold state, by changing the shape and radian of the end of the operating rod 2 near the end, its shape can be adjusted to meet the needs of various angles in the operation, thereby meeting the...

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Abstract

The invention provides a thread leading device for catheter ligation, relates to the technical field of medical instruments, and aims to solve the problems that in the prior art, a right-angle clamp is inconvenient to operate, and a patient is likely to be accidentally injured. The thread leading device for catheter ligation comprises an operating rod (2), and an end head (1) is arranged at the end of the operating rod (2); the operating rod (2) and / or the end head (1) are / is provided with a threading channel for a silk thread to penetrate through. According to the thread leading device, in an arterial duct ligation operation, a ligature penetrates through the threading channel, the ligature is led in through the operating rod, the ligature leading-in mode is simple, the leading-in success rate is high, the thread leading device occupies a small space, the operation of the thread leading device in a narrow space at the aortic arch is more flexible and convenient, and therefore the safety of the operation is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a guide wire device for catheter ligation. Background technique [0002] Ligation of patent ductus arteriosus (PDA) in premature infants is a very surgically challenging operation with high risks. Once bleeding occurs, the patient often dies on the spot. The traditional surgical ligation method generally uses right-angle forceps to separate the upper and lower gaps of the catheter, gradually opens the arms of the right-angle forceps, introduces silk thread through the right-angle forceps, makes it bypass the ductus arteriosus, and then performs ligation. Due to the light weight of premature infants, the narrow operable space at the aortic arch, and the extremely fragile tissue texture of the arterial duct, not only the movement and field of view are greatly limited during the operation, but also the right-angle forceps are large in size, and the lead wire needs to be open...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12009
Inventor 肖小潇任芯佩张译罗书画干琳
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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