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Hemodialysis internal fistula fixed point puncture needle

A puncture needle and hemodialysis technology, which can be used in guiding needles, dialysis systems, catheters, etc.

Pending Publication Date: 2020-02-04
横县人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different operating techniques of different medical staff, it is difficult to achieve the original puncture when using the current puncture needle, which can easily cause the expansion of the sore

Method used

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  • Hemodialysis internal fistula fixed point puncture needle
  • Hemodialysis internal fistula fixed point puncture needle
  • Hemodialysis internal fistula fixed point puncture needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A fixed-point puncture needle for hemodialysis internal fistula, comprising a needle 2, a needle holder 4 and a hose 5, the needle 2 and the hose 5 are connected through the needle holder 4; the end of the hose 5 is connected to a joint 7, and the joint 7 is covered There is a joint cover 8, a handle 3 is arranged on the needle base 4; a guide clip 1 is installed on the needle 2. Described guide clip 1 comprises upper splint 9 and lower splint 14, and the rear end of upper splint 9 and lower splint 14 is all provided with the clip ear 11 that is used to control the opening and closing of guide clip 1, and the connecting ear of upper splint 9 and lower splint 14 A hinge shaft 12 is installed on the hinge shaft 12, a spring 13 for providing a clamping force is installed on the hinge shaft 12, and a clamping position 10 is provided on the clamping surface of the upper splint 9, and the clamping position 10 can limit the needle 2 inside, The needle head 2 can move back and ...

Embodiment 2

[0032] A fixed-point puncture needle for hemodialysis internal fistula, comprising a needle 2, a needle holder 4 and a hose 5, the needle 2 and the hose 5 are connected through the needle holder 4; the end of the hose 5 is connected to a joint 7, and the joint 7 is covered A joint cover 8 is provided, and a flow clamp 6 is arranged on the flexible pipe 5 . The flow clamp 6 can control the flow of the hose 5, which is convenient for medical personnel to operate. The needle holder 4 is provided with a handle 3; the needle 2 is provided with a guide clip 1. Described guide clip 1 comprises upper splint 9 and lower splint 14, and the rear end of upper splint 9 and lower splint 14 is all provided with the clip ear 11 that is used to control the opening and closing of guide clip 1, and the connecting ear of upper splint 9 and lower splint 14 A hinge shaft 12 is installed on the hinge shaft 12, and a spring 13 for providing clamping force is installed on the hinge shaft 12. The clam...

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PUM

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Abstract

The invention discloses a hemodialysis internal fistula fixed point puncture needle, which comprises a needle head, a needle head seat and a hose, wherein the needle head and the hose are connected through the needle head seat; the tail end of the hose is connected with a joint; the joint is covered with a joint cover; the needle head seat is provided with a handle; the needle head is provided with a guide clamp; the guide clamp comprises an upper splint and a lower splint; the rear end of the upper splint and the rear end of the lower splint are independently provided with a clamping lug usedfor controlling the guide clamp to be opened and closed; a connecting lug for the upper splint and the lower splint is provided with a hinging shaft; the hinging shaft is provided with a spring usedfor providing clamping force; the clamping surface of the upper splint is provided with a clamping position; the lower part of the lower splint is provided with a guide cushion block which inclines tothe tail tip part direction of the needle head; the inclination surface of the guide cushion block and the tail nail part of the needle head are positioned on the same plane; and the inclination angle of the guide cushion block is 30-45 degrees. The puncture needle is provided with a guide clip so as to be convenient for medical care personnel to carry out directional puncture by the puncture needle so as to be easy in realizing fixed point puncture.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a fixed-point puncture needle for hemodialysis internal fistula. Background technique [0002] Hemodialysis ( Hemodialysis ), which clinically means that some waste products in the blood are removed by the semi-permeable hemodialysis membrane. Hemodialysis is one of the safer, easier and widely used methods of blood purification. Dialysis is the movement of solutes from a solution of high concentration to a solution of low concentration through a semipermeable membrane. Hemodialysis includes the movement of solutes and water, that is, the blood and dialysate exchange substances in the dialyzer (artificial kidney) through semi-permeable membrane contact and concentration gradients, so that metabolic waste and excess electrolytes in the blood are transferred to the dialysate. Move, the calcium ions and bases in the dialysate move to the blood. If the mixture of albu...

Claims

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Application Information

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IPC IPC(8): A61M25/06A61M1/14
CPCA61M1/14A61M25/06A61M25/0625A61M25/0637
Inventor 陆金婷
Owner 横县人民医院
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