Non-blood returning transfusion tube

An infusion tube and non-return technology, applied in the field of infusion tubes, can solve problems such as inconvenience of use and increase the labor intensity of medical staff, and achieve the effects of ensuring sealing effect, safe use and preventing blood backflow

Inactive Publication Date: 2008-03-05
陈庆强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional infusion tubes (Murphys tubes) used in clinical medicine require medical staff to continuously observe the liquid level during use to prevent air from entering the infusion tube and backflow of blood after the infusion is completed. This kind of infusion tube increases the labor intensity of medical staff and exists Inconvenience to use

Method used

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  • Non-blood returning transfusion tube
  • Non-blood returning transfusion tube

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Referring to Fig. 1, the non-return blood infusion tube of the present invention comprises a tube body 1, and a partition 2 is arranged in the tube body 1. The tube body 1 is composed of an upper tube body 1a and a lower tube body 1b. The bodies 1a and 1b are sealed and connected by a partition 2; a through hole 2a is provided in the middle of the partition 2, and a connecting rod 3 is provided in the through hole 2a, and a liquid passage is left between the outer wall of the connecting rod 3 and the inner wall of the through hole 2a , the liquid channel is a plurality of grooves extending axially along the outer wall surface of the connecting rod 3; the upper end of the connecting rod 3 is provided with a spherical joint 3a, and a closing cap 4 is set on the spherical joint 3a, and the lower surface of the closing cap 4 is in contact with the The upper surfaces of the partitions 2 are in contact with each other, and by setting the spherical joint 3a, the connecting rod ...

Embodiment 2

[0018] Referring to Fig. 2, it is another anti-return blood transfusion tube of the present invention, which is basically the same as that of Embodiment 1, the difference lies in the structure of the tube body 1 and the connection method between the float 5 and the closing cap 4, wherein the tube body 1 is a whole Type, and the inner wall of the pipe body 1 is provided with a circle of annular groove 1c, the outer periphery of the partition 2 is embedded in the annular groove 1c sealed connection; and the float 5 is a hollow ball, plugged with the closing cap 4 connect.

[0019] Referring to shown in Fig. 3, it is the state during the normal infusion of the present invention, and the liquid constantly enters from the upper body 1a, so that the float 5 is positioned in the liquid to generate upward buoyancy, when the buoyancy is greater than the gravity (gravity includes the self weight of the float 5, the sealing The weight of the cap 4, the connecting rod 3 and the pendant 6,...

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Abstract

The present invention discloses one kind of non-return fluid infusion tube as one medical device with simple structure, use safety and high reliability. The non-return fluid infusion tube includes one tube, one partition board with one through hole inside the tube, one link rod inside the through hole to form one liquid passage between the outer wall of the link rod and the through hole, one spherical joint in the upper end of the link rod, one closing cap on the spherical joint and with lower surface to constitute contact sealing together with the upper surface of the partition board, one float connected to the upper part of the closing cap and one pendant connected to the lower end of the link rod. The present invention is used in fluid infusion.

Description

technical field [0001] The invention relates to a transfusion tube, in particular to a hemostatic transfusion tube. Background technique [0002] Traditional infusion tubes (Murphys tubes) used in clinical medicine require medical staff to continuously observe the liquid level during use to prevent air from entering the infusion tube and backflow of blood after the infusion is completed. This kind of infusion tube increases the labor intensity of medical staff and exists The lack of inconvenience. Chinese patent CN200520060898.8 discloses "a float type safety infusion tube" (authorized announcement date: August 9, 2006, announcement number CN2803405), which utilizes the contact seal between the lower surface of the closure cap and the upper surface of the tube connector, After the infusion is completed, the lower surface of the closing cap contacts the upper surface of the tube connector to form a seal, so that the infusion tube prevents blood from flowing back after the in...

Claims

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Application Information

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IPC IPC(8): A61M5/175
Inventor 陈庆强
Owner 陈庆强
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