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Infusion set

A technology for infusion devices and infusion bottles, which is applied in the field of medical devices and can solve the problems of not getting uniform liquid flow rate, blood return, and liquid stop flowing down, etc.

Inactive Publication Date: 2018-02-09
THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, because the liquid pressure in the conduit is small, even if it is adjusted by the governor, the effect of uniform liquid flow rate will not be obtained.
Moreover, it is precisely because of the low pressure of the liquid in the catheter that when the patient changes position and affects the catheter, the liquid will often stop flowing down, and even cause blood to return.

Method used

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as Figures 1 to 3 As shown, the embodiment of the present invention discloses an infusion device, which is used for infusion to patients, especially for infusion to patients with higher precision requirements on the flow rate of liquid. The infusion device of the present invention specifically includes: a catheter 10, a puncture needle 20, an injection needle 30, a drip funnel 50, a governor 40 and a booster. Puncture needle 20 is arranged on the upper end of conduit 10, and puncture needle 20 is used for inserting in the infusion bottle so that the liquid in the infusion bottle is introduced in conduit 10; Injection needle 30 is arranged on the lower end of conduit 10, and injection needle 30 is used for piercing pa...

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PUM

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Abstract

The invention discloses an infusion device. The infusion device comprises a catheter, a puncture needle, an injection needle, a speed regulator and a pressurizer, wherein the injection needle is arranged at the lower end of the catheter and used for puncturing the blood vessel of a patient to introduce liquid in the catheter into the blood vessel of the human body; the speed regulator is used for adjusting flow speed of the liquid in the blood vessel of the human body; the pressurizer is used for pressurizing the liquid in the catheter. As the pressurizer is arranged, the liquid in the catheter above the speed regulator has certain pressure (the pressure is far higher than that of the liquid in the catheter before the pressurizer is arranged), in this way, flow speed of the liquid in the catheter is mainly dependent on pressure provided by the pressurizer instead of pressure generated by liquid height difference, and as the pressure provided by the pressurizer is high, resistance generated by the inner wall of the catheter has little influence on the flow speed of the liquid.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an infusion device for nursing. Background technique [0002] The infusion device in the prior art generally includes a catheter, a puncture needle arranged at one end of the catheter, a drip funnel arranged in the catheter, a speed regulator arranged in the catheter, and an injection needle arranged at the other end of the catheter. When in use, the puncture needle is first inserted into the infusion bottle to introduce the liquid in the infusion bottle into the catheter, and when the catheter is filled with liquid and air bubbles are removed, the injection needle is inserted into the blood vessel of the human body. [0003] In the infusion device in the prior art, the speed governor is used to adjust the flow rate of the liquid entering the human body (or the flow rate of the liquid per unit time), such as a mechanical speed governor usually used, by making the roller i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/155A61M5/168
CPCA61M5/155A61M5/16813A61M5/16877
Inventor 胡英芳田金满丹海永
Owner THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV