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Continuous nerve block catheter delivery system and method

A technology of nerve block and delivery system, applied in the direction of catheter, trocar, puncture needle, etc., can solve the problems of difficult catheter placement, easy bending, lack of supporting force, etc.

Pending Publication Date: 2021-05-11
THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a flexible continuous nerve block catheter that is easy to administer according to the existing soft continuous nerve block catheter, which is easy to bend during delivery due to its softness and lack of supporting force, resulting in difficulty in catheter placement. Supporting force, making it difficult to bend during delivery, increasing the speed of catheterization, and facilitating the continuous nerve block catheter delivery device for catheterization

Method used

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  • Continuous nerve block catheter delivery system and method
  • Continuous nerve block catheter delivery system and method
  • Continuous nerve block catheter delivery system and method

Examples

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Embodiment 1

[0032] Such as Figure 1-5 As shown, a continuous nerve block catheter delivery system includes a hollow puncture needle 1 and a tubular conveyor 2. The end of the puncture needle 1 away from the needle tip is provided with a handle 3, and the side of the handle 3 away from the needle tip of the puncture needle 1 is fixedly connected with a hollow The connecting head 4, the connecting pin 5 is sleeved in the connecting head 4, the surface of the connecting pin 5 is movably connected with the inner wall of the connecting head 4, and a certain friction force is maintained between the two, which can effectively prevent the connecting pin 5 from slipping, thereby avoiding The conveyor 2 slips off, the end of the connecting needle 5 away from the connector 4 is fixedly connected to one end of the conveyor 2, the other end of the conveyor 2 is sleeved with a delivery sheath 6, the delivery sheath 6 is slidably connected to the conveyor 2, and the delivery sheath 6 is sleeved with a ...

Embodiment 2

[0060] Such as Figure 6 As shown, a continuous nerve block catheter delivery system includes a hollow puncture needle 1 and a tubular conveyor 2. The end of the conveyor 2 away from the puncture needle 1 is sleeved with a delivery sheath 6. The delivery sheath 6 includes a detachable The first part 601 and the second part 602, the first part 601 and the second part 602 are semicircular tubes, the inner walls of the first part 601 and the second part 602 are provided with a number of elastic protrusions 13, the first The part 601 and the second part 602 are snap-connected to form the delivery sheath 6. At least one inwardly recessed J-shaped sliding groove 603 is provided on the contact surface of the first part 601 and the second part 602. The second part 602 and the first The contact surface of the component 601 is provided with at least one J-shaped clamping block 604 protruding outwards, the J-shaped clamping block 604 is arranged correspondingly to the J-shaped sliding sl...

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Abstract

The invention relates to the technical field of medical instruments, and discloses a continuous nerve block catheter conveying system which comprises a hollow puncture needle and a conveyor, a handle is arranged at the end, away from a needle point, of the puncture needle, a hollow connector is fixedly connected to the side, away from the needle point of the puncture needle, of the handle, a connecting needle is sleeved with the connector, the end, away from the connector, of the connecting needle is fixedly connected with the conveyor, the end, away from the connecting needle, of the conveyor is sleeved with a conveying sheathing canal, a continuous nerve block catheter is sleeved with the conveying sheathing canal, a through groove is formed in the surface of the conveyor, and a pressing block is movably arranged in the through groove. The continuous nerve block catheter conveying system is simple in structure and convenient to operate, by arranging the conveyor and the conveying sheathing canal, the catheter cannot be bent, the difficulty that the catheter is soft, easy to bend and incapable of being indwelled in the bare-handed catheter indwelling process is overcome, catheter indwelling is facilitated, the catheter indwelling speed is increased, the catheter indwelling success rate is increased, the catheter indwelling depth can be accurately controlled, and due to the fact that the used catheter is soft, the risk that the anatomical level required by the indwelling catheter is punctured is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a continuous nerve block catheter delivery system and method. Background technique [0002] In the current continuous nerve block, the operation is performed using a needle and a continuous nerve block catheter. A soft continuous nerve block catheter is used to insert the potential interstitial space. If a harder catheter is selected, it is often easy to pierce the serosa or fascia, the liquid medicine will be injected into other anatomical layers, and cause the operation to fail. Since the continuous nerve block catheter is extremely soft, the diameter is very thin, and it lacks support. It bends in the space between the needle tail and the needle tail, making it difficult to insert the catheter. [0003] In addition, in the traditional nerve block catheter insertion operation, the nerve block catheter is often delivered to the patient to a certain extent, and then the ...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B17/3401A61B17/3415A61B17/3494
Inventor 崔宇龙徐军美余丰伶曹心妍肖锐
Owner THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV