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peripherally inserted central catheter

A technology for central venous catheters and catheters, applied in catheters and other directions, can solve the problems of difficult infusion of medicinal liquid and difficulty in forming effective openings, and achieve the effects of good controllability, reasonable structure, and convenient use

Active Publication Date: 2011-12-14
SHANDONG WEIGAO GROUP MEDICAL POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the two lips of the incision are completely symmetrical, it is difficult to form an effective opening, which makes it difficult to infuse the medicine

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0015] From figure 1 It can be seen from the figure that a peripherally inserted central venous catheter includes a catheter 3 and a sealed needle-free infusion fluid connector 1 , and the indwelling catheter 3 is connected to the sealed needle-free fluid infusion connector 1 through a connection device 2 . The catheter is made of biocompatible materials such as silica gel, which is soft and elastic, and the catheter is also marked with scale marks. The airtight needle-free infusion fluid joint 1 and the connecting device 2 are the same as those of the prior art, and will not be repeated here.

[0016] The present invention is characterized in that: a conduit slit 5 is provided on the wall of the conduit 3 deviated from the central axis of the conduit. The distance between the catheter slit 5 and the central axis of the catheter is between 0.2-0.6 mm. Both sides of the catheter slit 5 form a large lip 6 of the catheter slit and a small lip 7 of the catheter slit. Such as ...

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Abstract

The invention relates to a central venous catheter inserted into a peripheral vein, which includes a catheter and a sealed needle-free infusion liquid joint. The catheter is connected to the closed needle-free liquid medicine infusion joint through a connecting device. Catheter cut. The incision of the catheter is in a naturally closed state when no blood is drawn back or infused or injected, but when the medical staff withdraws blood, a negative pressure is formed in the inner cavity of the catheter, and the large lip of the catheter incision is concave inward; when the medical staff infuse Positive pressure is formed in the inner cavity of the catheter when the medicine is liquid, and the large lip of the catheter slit is protruding outwards. In this way, the catheter slit has the function of a two-way catheter valve, which can form an effective opening as the infusion liquid inlet and outlet, which is convenient for infusion. liquid. The invention has the advantages of reasonable structure, convenient use, good controllability of infusion of medicinal liquid, and can effectively avoid catheter blockage.

Description

technical field [0001] The invention relates to a medical device, in particular to a central venous catheter inserted into a peripheral vein. Background technique [0002] We know that the central venous catheter (PICC) inserted through the peripheral vein has become a mature and safe way for intraoperative monitoring, blood transfusion, fluid replacement, postoperative various therapeutic drugs, chemotherapy for cancer patients, and parenteral nutrition. Central venous catheterization technology has gradually been promoted and popularized in China in recent years. 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. An indwelling catheter is positioned in the superior vena cava to provide the patient with medium to long-term intravenous fluid therapy. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/00
Inventor 夏欣瑞文世昌于红春邴雪飞
Owner SHANDONG WEIGAO GROUP MEDICAL POLYMER