Infusion apparatus check valve capable of realizing blood returning resistance
A technology of infusion sets and check valves, which is applied in the field of medical devices, can solve the problems of inconvenient needle injection for blood return observation, high manufacturing precision requirements, and blockage of infusion tubes, and achieve the effects of convenient observation of blood return, low processing precision requirements, and prevention of blood return
Inactive Publication Date: 2019-04-05
张复祥
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to provide a non-return valve for an anti-blood return infusion set, which mainly solves the problems in the prior art such as high production cost, high manufacturing precision requirements, risk of infusion tube blockage, inconvenient observation of blood return after needle sticking, etc.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0022] Such as Figure 1 to Figure 2 As shown, the check valve for the anti-reflux infusion set includes a valve body 1 whose upper end is connected to the flow regulator 9 and whose lower end is connected to the intravenous infusion tube 11, and a cone-shaped spool cavity 5 built into the valve body 1, The hollow spool ball 4 built into the spool cavity 5, the liquid inlet hole 2 set at the top of the spool cavity 5, the liquid outlet hole 3 set at the bottom of the spool cavity 5, and the connecting spool cavity 5. The bottom and the side wall of the outlet hole 3 are equipped with 4 discharge holes 6. In order to effectively prevent blood return, the diameter of the valve core ball 4 is larger than that of the liquid outlet hole 3 and the liquid inlet hole 2 . The liquid inlet hole 2 is connected with the outlet of the flow regulator, and the liquid outlet hole 3 is connected with the inlet of the intravenous infusion tube 11 . Both the valve body 1 and the valve core bal...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an infusion apparatus check valve capable of realizing blood returning resistance. The problems that the production cost is high, the manufacturing accuracy requirements ate high, the risk of infusion tube blockage exists, and needle puncture to observe blood returning is inconvenient in the prior art are mainly solved. The infusion apparatus check valve comprises a valve body, a valve core cavity, a valve core ball, a liquid inlet hole, a liquid outlet hole, and one or more flow discharging holes, wherein the upper end of the valve body is connected with a flow regulator, and the lower end of the valve body is connected with an intravenous infusion tube; the valve core cavity is arranged in the valve body and is in a cone shape, the valve core ball is arranged in the valve core cavity and is hollow, the liquid inlet hole is formed in the top of the valve core cavity, the liquid outlet hole is formed in the bottom of the valve core cavity, and the flow discharging holes communicate the bottom of the valve core cavity with the side wall of the liquid outlet hole. The infusion apparatus check valve capable of realizing blood returning resistance has the advantages of simple structure, low processing accuracy requirement, low production cost, convenient and quick use and the like, and has very high practical value and popularizing value in the field of medical apparatus and instruments.
Description
technical field [0001] The invention relates to the field of medical devices, in particular to a check valve for an anti-reflux infusion set. Background technique [0002] The infusion set is a common disposable medical consumable used for sterile treatment of intravenous infusion and establishing a channel between the vein and the liquid medicine. It is mainly composed of a Murphy's dropper, a cork puncture needle, an infusion tube, a flow regulator, an intravenous infusion needle, an intravenous infusion tube, an air intake tube, and an air filter connection. The speed of the infusion was adjusted by the flow regulator, and the flow rate was observed with the Murphy's dropper. [0003] When using the infusion set, on the one hand, in order to facilitate the medical staff to confirm that the intravenous infusion needle enters the venous blood vessel accurately, it is necessary to observe the phenomenon of blood return in the intravenous infusion tube, so as to prevent the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/40A61M5/14A61M39/24
CPCA61M5/40A61M5/14A61M39/24A61M2205/0216
Inventor 张复祥
Owner 张复祥