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Remaining needle with slow release positive pressure

A technology of indwelling needles and sustained release, which is applied in the direction of needles, medical devices, and devices introduced into the body, and can solve problems such as tube blockage, drug liquid not flowing out, and patient injury

Active Publication Date: 2015-03-11
LUOHE SHUGUANG HUIZHIKANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The disposable venous indwelling needles used clinically in clinical units of various medical institutions in China need to be sealed after the infusion to avoid clogging caused by blood coagulation in the tube. If the tube is not flushed before the next day's infusion, or the clot that has formed is flushed into the blood vessel, it is very easy to cause embolism in the blood vessel blocked during the blood circulation process. The patient brings great harm or even life-threatening. Although some patients are injected with anticoagulant drugs such as heparin sodium to prevent blood coagulation, and some patients who are allergic to anticoagulant drugs such as heparin sodium may also use normal saline to seal the tube. The tube time is limited, and it needs to be sealed many times. In addition, improper operation by nurses can easily cause tube blockage. Currently, there are technologies such as positive pressure joint devices on the market, and thin fiber drainage in the tube, which can only be used at that time. There is positive pressure, or because the clip is too tight, the pressure is too low, the liquid medicine cannot be released, and the liquid medicine will not flow out after a few minutes, and it is still easy to form a blocked tube. How to solve the problem of blood coagulation in the tube to prevent blood clots? Current problems to be solved

Method used

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  • Remaining needle with slow release positive pressure
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Examples

Experimental program
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Effect test

Embodiment 1

[0018] Such as figure 1 and figure 2 As shown, the present embodiment 1 is composed of an indwelling needle assembly, a double-lumen catheter (3), a catheter clamp (4), a Y-shaped positive pressure connector (5) and a liquid reservoir (6), and the indwelling needle assembly includes a needle sheath ( 7), the catheter assembly (1) and the needle assembly (2), the catheter clip (4) is placed on the double-lumen catheter (3), and the small lumen (31) of the catheter is snapped into the slot (41) of the catheter clip (4). ), the two ends of the double-lumen catheter (3) are firmly connected with the Y-shaped inclined interface of the catheter assembly (1) of the indwelling needle assembly and the lower end interface of the Y-shaped positive pressure joint joint base (54), and the liquid reservoir (6) is screwed Connected to the inclined interface of the Y-type positive pressure joint, it is characterized in that: the double-lumen catheter (3) is a large and small double-lumen ca...

Embodiment 2

[0027] Such as figure 2 As shown, the difference between embodiment 2 and embodiment 1 is that the straight type positive pressure joint (8) and the three-way catheter socket (9) replace the Y type positive pressure joint (5), and its operation is exactly the same as that of embodiment 1.

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Abstract

The invention discloses a remaining needle with slow release positive pressure. The remaining needle comprises a remaining needle assembly, a double-cavity catheter, a catheter clip, a Y-shaped positive pressure connector and a liquid storage device. The remaining needle assembly comprises a needle protection sleeve, a catheter assembly and a needle assembly. The double-cavity catheter is sleeved with the catheter clip. The two ends of the double-cavity catheter are firmly connected with a Y-shaped inclined connector and a Y-shaped positive pressure connector base lower end connector of the catheter assembly of the remaining needle assembly respectively. The liquid storage device is connected to an inclined connector of a Y-shaped positive pressure connector in a screwed mode. The remaining needle is characterized in that the double-cavity catheter is provided with a large cavity and a small cavity, the large cavity is a conventional infusion passageway, the small cavity has the tiny aperture, pressure is formed for the positive pressure connector and the liquid storage device of the remaining needle through released hydraulic pressure in the remaining process after the large cavity is clamped and closed through the catheter clip so that liquid medicine can slowly permeate the passageway, and in the remaining process, the liquid medicine slowly flows out of micro holes of the slow release catheter and permeates a blood vessel so that thrombosis can be prevented from being formed. The safety use of the remaining needle can be prolonged, apparatuses consumed for tube sealing can be eliminated, and medical expenses can be reduced.

Description

technical field [0001] The invention relates to a disposable medical device, in particular to an indwelling needle with slow-release positive pressure. Background technique [0002] The disposable venous indwelling needles used clinically in clinical units of various medical institutions in China need to be sealed after the infusion to avoid clogging caused by blood coagulation in the tube. If the tube is not flushed before the next day's infusion, or the clot that has formed is flushed into the blood vessel, it is very easy to cause embolism in the blood vessel blocked during the blood circulation process. The patient brings great harm or even life-threatening. Although some patients are injected with anticoagulant drugs such as heparin sodium to prevent blood coagulation, and some patients who are allergic to anticoagulant drugs such as heparin sodium may also use normal saline to seal the tube. The tube time is limited, and it needs to be sealed many times. In addition, ...

Claims

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Application Information

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IPC IPC(8): A61M5/158
CPCA61M5/1582A61M2206/10A61M5/158
Inventor 邹卫平邹浩然邱建芳
Owner LUOHE SHUGUANG HUIZHIKANG BIOTECH
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