Tunnel film type sensitive blood-back vena needle

A technique of venous needles and tunnels, applied in the direction of needles, instruments introduced into the body, valves, etc., can solve problems such as unfavorable use, gas accumulation, inability to separate flexible operations, etc., and achieve the effect of improving flexibility and sensitivity

Inactive Publication Date: 2007-09-19
BEIJING FORERUNNER TECHNICAL DEVING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology includes the problems in the design of the "direct membrane temperature sensitive blood return self-venting infusion filter" invented by myself with the patent application number 200510276096. The blood return cavity in the filter with blood return function is a cavity with an inner diameter larger than the inner diameter of the infusion line. The liquid flows through here

Method used

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  • Tunnel film type sensitive blood-back vena needle
  • Tunnel film type sensitive blood-back vena needle
  • Tunnel film type sensitive blood-back vena needle

Examples

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Embodiment Construction

[0015] Referring to Figure 1, the basic structural layout of the embodiment of the technical solution includes the blood return tee (1), the intravenous needle line (3), the intravenous needle (2), the intravenous needle line (3), the drip bucket (4), and the infusion main pipe. (5), the piercing needle (6) and the infusion tube connector (7), in which the blood return tee (1), the venous needle line (3) and the venous needle (2) after it form an integral structure, and then the inner concave The joint (13) is connected with the infusion main pipe (5) to realize the purpose of infusion.

[0016] Referring to Figure 2, this embodiment is based on the previous schematic diagram to further illustrate the main forms of the various structures of the blood return device at the axial end surface, in which the blood return tee (1) outlet is fixedly connected to the venous needle pipeline (3), and the inlet is provided with inner The concave interface (13) and the side port are sealed by a...

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Abstract

A tube file type sensitive blood returning intravenous needle is characterized by including a blood returning tee (1), an elastic film (8), a protective cover (9), and an intravenous needle pipeline (3), wherein the blood returning tee (1) is fixedly with the intravenous needle pipeline (3) at the exit, a concave inward interface (13) arranged at the inlet, the side port is sealed by the elastic film (8), the blood returning tee (1) forms an independent whole structure with the intravenous needle (2) and the pipeline thereof. The middle of the blood returning tee (1) is a blood returning tube (18), and the side port is rectangle, while the transect is of tube shape. The elastic film (8) is blocked at the rectangle opening from the outside; the blood returning tube (18) and the elastic film (8) are combined to form a pipe, wherein the two copulaes are not fixed and sealed. The device realizes the fast and expedite fluid stable flow, and does not generate air stockpile problems and time resort, also due to adopting the film type elastic film induction blood vessel pressure, the more sensitive blood returning assistant judgment function is realized, meanwhile can be matched stochastically and flexibly or used independently.

Description

Technical field [0001] The invention relates to a disposable infusion set in medical equipment, in particular to a tunnel membrane-type sensitive blood returning venous needle. The tunnel-shaped blood returning device is manufactured as a whole with the venous needle and the pipeline, which can be smoothly and timely when preparing for infusion Make the liquid flow through the pipeline the fastest without forming turbulence, gas retention, and gas stop during infusion. In addition, it also improves the flexibility of product use and the diversity of supporting equipment, and at the same time realizes more sensitive in the preparation of gravity infusion The blood return auxiliary judgment function can more accurately complete the active judgment of the position of the needle, and minimize the interference of human inexperience, poor human blood vessel conditions or low blood volume. technical background [0002] The purpose of the present invention is to provide a tunnel membrane...

Claims

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Application Information

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IPC IPC(8): A61M5/14A61M5/158A61M39/22
Inventor 贾宇东秦京生
Owner BEIJING FORERUNNER TECHNICAL DEVING CO LTD
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