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Peripherally used central venous catheter

A central venous catheter and catheter technology, applied in the direction of catheters, guide wires, etc., can solve the problems of increased catheter slit gap, large lip plastic deformation, human blood outflow, etc., and achieve the effect of reducing the possibility of blockage

Active Publication Date: 2019-07-23
南京宁创医疗设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the large lip is often convex and concave, and is prone to plastic deformation. At this time, the large lip cannot be completely reset, which increases the gap between the catheter slits. cause blood outflow

Method used

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  • Peripherally used central venous catheter
  • Peripherally used central venous catheter
  • Peripherally used central venous catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: a kind of peripheral central venous catheter, with reference to figure 1 and figure 2 , including a hollow catheter body 1, a guide wire 11 is threaded in the catheter body 1, so that the strength of the catheter body 1 is increased, which is beneficial for the catheter body 1 to enter the human body. One end of the catheter body 1 is provided with an opening 12 and is connected to a The infusion liquid joint 14, the connection device 13 and the infusion liquid joint 14 are the prior art, and will not be repeated here.

[0034] refer to image 3 , Figure 4 and Figure 5In order to reduce the blood flow back into the catheter body 1 when the venous catheter is punctured into the human body or pulled out and retained in the blood vessel of the human body, the catheter body 1 is closed at the end away from the infusion solution connector 14, and the closed end enters the In the human body, the outer wall of the catheter body 1 is provided with an annula...

Embodiment 2

[0044] Embodiment 2: A central venous catheter for peripheral use, the difference from Embodiment 1 is that, refer to Figure 8 and Figure 9 , the slider 153 is provided with a fixing groove 1536 on the side where the stay cord 1532 is provided, and the fixing groove 1536 is provided with a pressing plate 1537 that closes the notch of the fixing groove 1536, and one end of the pressing plate 1537 is hinged with the notch of the fixing groove 1536, and the other A compression spring 1538 is provided between one end and the bottom of the fixed groove 1536. When the operator pulls the slider 153 through the pull cord 1532, the slide block 153 collides with the wall of the through hole 151 at the end where the stay cord 1532 is provided. Along with stay cord 1532 pulls slide block 153, the pressing plate 1537 on the slide block 153 squeezes through hole 151 hole wall, opposite pressing plate 1537 is subjected to the reaction force of through hole 151 hole wall, and then through h...

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PUM

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Abstract

The invention, which belongs to the technical field of the venous duct, discloses a peripherally inserted central venous catheter. The invention aims at providing a peripherally inserted central venous catheter having an advantage of reducing occurrence of blood outflow in a catheter. The peripherally inserted central venous catheter is characterized in that one end, far away from a transfusion joint, of a catheter body is enclosed; a ring slot is formed in one end, far away from a transfusion joint, of the outer wall of the catheter body; a through hole is formed in the bottom of the ring slot; a silica gel film covering the bottom of the ring slot is arranged on the wall of the ring slot; and one end of the silica gel film is fixed with the wall of the ring slot and the other end is abutted against the wall of the ring slot. A sliding blocks is arranged in the through hole in a sliding connection mode; a drive block that enables the sliding block to move in the through hole and extend out of the through hole to push away the silica gel film is arranged on a guiding steel wire; a medicine liquid through hole for guiding blood into the catheter body is formed in one end, pushing away the silica gel film, of the sliding block; a stay cord is arranged at one end, abutted against the guiding steel wire, of the sliding block; and the stay cord passes through an opening formed in one end of the catheter body.

Description

technical field [0001] The invention relates to the technical field of venous catheters, in particular to a peripheral central venous catheter. Background technique [0002] The central venous catheter inserted through peripheral venous puncture has become a mature and safe central venous catheterization technology as a pathway for intraoperative monitoring, blood transfusion, fluid replacement, various postoperative medications, chemotherapy for cancer patients, and parenteral nutrition. In recent years, it has gradually been promoted and popularized in China. At present, the central venous catheter that can be permanently indwelled includes an indwelling catheter and a closed needle-free infusion fluid connector, and the indwelling catheter is connected to the closed needle-free infusion fluid connector through a connecting device. The indwelling catheter is positioned in the superior vena cava and is used to provide medium-term to long-term intravenous infusion therapy f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/14A61M25/09
CPCA61M25/00A61M25/0074A61M25/09A61M2025/0018A61M2025/0073A61M2025/0079A61M2025/09183
Inventor 田培华
Owner 南京宁创医疗设备有限公司