CN215134622U - Automatic stop type blood return prevention precise filtering infusion apparatus - Google Patents
Automatic stop type blood return prevention precise filtering infusion apparatus Download PDFInfo
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- CN215134622U CN215134622U CN202023128462.1U CN202023128462U CN215134622U CN 215134622 U CN215134622 U CN 215134622U CN 202023128462 U CN202023128462 U CN 202023128462U CN 215134622 U CN215134622 U CN 215134622U
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Abstract
The utility model discloses a blood microfiltration transfusion system is prevented returning by self-stop formula, include: the infusion apparatus body comprises a main catheter, a liquid storage cavity arranged on the upper part of the main catheter and an adjusting valve arranged on the main catheter; the injector comprises a mounting head arranged at the lower part of the main catheter, an injection hose arranged at the lower part of the mounting head and an injection needle arranged at the lower part of the injection hose; the check valve comprises a shell arranged at the upper part of the liquid storage cavity, a plug arranged in the inner cavity of the shell, a connector arranged at the top of the shell and a convex block arranged at the bottom of the connector; the plug-in assembly comprises a plug-in connector arranged at the upper part of the connector and an air valve arranged on the side wall of the plug-in connector; the utility model is favorable for replacing the screw cap and the filter screen conveniently by arranging the air valve; the connector is in interference connection with the main catheter, and the mounting head is in interference connection with the plug connector, so that the sealing performance is guaranteed, and the syringe component is convenient to disassemble, transport and store independently.
Description
Technical Field
The utility model relates to a transfusion system technical field specifically is a blood microfiltration transfusion system is prevented returning by self-stop formula.
Background
In the prior art, a traditional infusion apparatus generally needs a nursing staff to change liquid or pull out a needle in time after the liquid infusion of an infusion bag or an infusion bottle is finished. If the liquid is not changed or the needle is pulled out in time, the phenomenon of blood backflow often occurs. Especially when the liquid is changed by negligence or time before changing new liquid medicine, air can enter the lower pipeline of the transfusion device, and unexpected blood returning phenomenon can be caused. The blood return condition can not only cause the catheter to be incapable of being used for transfusion due to air bubble embolism, but also cause blood coagulation to form blood clots to enter the human body seriously, thereby causing injury to the human body and serious medical accidents such as iatrogenic infection, phlebitis and the like. Therefore, how to solve the problems and adverse effects caused by treatment in clinical treatment is always a difficult problem which makes medical personnel and infusion apparatus manufacturers feel rather troublesome, and therefore an automatic-stop blood return prevention precise filtration infusion apparatus is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stop-and-go type prevents blood return microfiltration transfusion system, has solved the problem that proposes among the background art.
In order to achieve the above object, the utility model provides a following technical scheme: an automatic stop type blood return prevention precise filtering infusion set comprises:
the infusion apparatus body comprises a main catheter, a liquid storage cavity arranged on the upper part of the main catheter and an adjusting valve arranged on the main catheter;
the injector comprises a mounting head arranged at the lower part of the main catheter, an injection hose arranged at the lower part of the mounting head and an injection needle arranged at the lower part of the injection hose;
the check valve comprises a shell arranged at the upper part of the liquid storage cavity, a plug arranged in the inner cavity of the shell, a connector arranged at the top of the shell and a convex block arranged at the bottom of the connector;
the plug-in component comprises a plug-in connector arranged on the upper part of the connector and an air valve arranged on the side wall of the plug-in connector.
Preferably, the air valve comprises an air pipe arranged on the plug, a ventilation head arranged at the other end of the air pipe, a screw cap arranged at the upper part of the ventilation head and a filter screen arranged on the screw cap.
Preferably, the connector is in interference connection with the main duct, and the mounting head is in interference connection with the plug connector.
Preferably, the plug is in an inverted funnel shape, and the number of the three convex blocks is equidistantly distributed at the bottom of the inner cavity of the shell.
Preferably, the upper surface of the ventilation head is in a grid shape.
Preferably, the top of the screw cap is funnel-shaped, and four filter screens are arranged at the top of the screw cap.
Compared with the prior art, the beneficial effects of the utility model are as follows: the arrangement of the air valve is beneficial to conveniently replacing the screw cap and the filter screen; the connector is in interference connection with the main catheter, and the mounting head is in interference connection with the plug connector, so that the sealing performance is ensured, and the syringe component is convenient to detach, transport and store independently; the liquid medicine is in an inverted funnel shape through the plug, the number of the convex blocks is three, and the convex blocks are distributed at the bottom of the inner cavity of the shell at equal intervals, so that the liquid medicine can smoothly flow out; the upper surface of the air-permeable head is in a grid shape, so that the air valve is prevented from being blocked by large particles to influence the discharge of the liquid medicine; be through the nut top and leak hopper-shaped, and the nut top is provided with four filter screens, is favorable to increasing the area of filter screen, increases the air input, prevents that the filter screen from influencing the air and leading-in.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is an installation drawing of the present invention;
FIG. 2 is a structure view of the check valve of the present invention;
fig. 3 is a structure diagram of the air valve of the present invention.
In the figure: 100. the infusion apparatus comprises an infusion apparatus body, 110, a main catheter, 120, a liquid storage cavity, 130, a regulating valve, 200, an injector, 210, a connector, 220, an injection hose, 230, an injection needle, 300, a one-way valve, 310, a shell, 320, a plug, 330, a mounting head, 340, a protruding block, 400, a plug component, 410, a plug connector, 420, an air valve, 421, an air pipe, 422, a ventilation head, 423, a screw cap, 424 and a filter screen.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
The invention provides a self-stopping blood return prevention precise filtering infusion apparatus which can effectively prevent blood return of the infusion apparatus.
Fig. 1-3 show schematic structural views of an embodiment of an automatic stop blood-return-preventing precise-filtering infusion set according to the present invention, and referring to fig. 1-3, the main body of the automatic stop blood-return-preventing precise-filtering infusion set according to the present embodiment includes an infusion set body 100, an injector 200, a one-way valve 300 and a plug assembly 400.
The infusion apparatus body 100 is used for connecting the injector 200, the one-way valve 300 and the plug-in assembly 400 and realizing the flow rate regulation of the infusion apparatus, and specifically, the infusion apparatus comprises a main catheter 110, a liquid storage cavity 120 installed on the upper part of the main catheter 110 and a regulating valve 130 installed on the main catheter 110, when in use, liquid medicine passes through the liquid storage cavity 120 and the regulating valve 130 in sequence to enter the injector 200 and be injected into a human body when passing through the main catheter 110, at the moment, the diameter of the main catheter 110 of the regulating valve 130 is limited by a regulating wheel on the regulating valve 130, and meanwhile, the liquid storage cavity 120 is arranged to temporarily store the liquid medicine, so that air is prevented from being introduced into the human body;
the syringe 200 is used for introducing the liquid medicine into the patient, specifically, the syringe 200 includes the mounting head 330 mounted on the lower part of the main catheter 110, the injection hose 220 mounted on the lower part of the mounting head 330 and the injection needle 230 mounted on the lower part of the injection hose 220, when in use, the mounting head 330 is mounted on the lower part of the main catheter 110, and then the injection needle 230 is inserted into the skin, because the injection hose 220 is soft, the interference to the injection needle 230 can be reduced;
the check valve 300 is used for limiting unidirectional flow of liquid medicine, specifically, the check valve 300 comprises a shell 310 installed on the upper portion of the liquid storage cavity 120, a plug 320 installed in an inner cavity of the shell 310, a connector 210 installed on the top of the shell 310 and a protruding block 340 installed at the bottom of the connector 210, when the check valve 300 is used, the check valve 300 is installed between the infusion apparatus body 100 and the plug assembly 400, when liquid medicine is left from the upper portion of the check valve 300, the plug 320 is pushed to the bottom of the inner cavity of the shell 310 until the liquid medicine is pushed to the protruding block 340, the liquid medicine flows into the main conduit 110 through a gap between the plug 320 and the shell 310, when the liquid medicine flows back from the bottom of the check valve 300, the plug 320 is pushed up, the connector 210 on the top of the shell 310 is blocked to limit the upward flow of the liquid medicine, and the situation of the liquid medicine backflow is avoided;
the plug assembly 400 is used for piercing a sealing plug of a liquid medicine bottle, and specifically, the plug assembly 400 comprises a plug 410 mounted on the upper portion of the connector 210 and an air valve 420 mounted on a side wall of the plug 410, when in use, the plug 410 is used for piercing the sealing plug of the liquid medicine bottle, liquid medicine flows into the main conduit 110 through a hollow hole at the top of the plug 410, and air is introduced into the liquid medicine bottle through the air valve 420.
The air valve 420 comprises an air pipe 421 mounted on the plug 410, a ventilation head 422 mounted at the other end of the air pipe 421, a screw cap 423 mounted at the upper part of the ventilation head 422, and a filter screen 424 arranged on the screw cap 423, so that the screw cap 423 and the filter screen 424 are convenient to replace; the connector 210 is in interference connection with the main catheter 110, and the mounting head 330 is in interference connection with the plug 410, so that the components of the syringe 200 can be conveniently detached and transported and stored independently while the sealing performance is ensured; the plug 320 is in an inverted funnel shape, and the three convex blocks 340 are equidistantly distributed at the bottom of the inner cavity of the shell 310, so that the liquid medicine can smoothly flow out; the upper surface of the air permeable head 422 is in a grid shape, which is beneficial to preventing the air valve 420 from being blocked by large particles to influence the discharge of the liquid medicine; nut 423 top is to leaking hopper-shaped, and nut 423 top is provided with four filter screens 424, is favorable to increasing filter screen 424's area, increases the air input, prevents that filter screen 424 from influencing the air introduction.
The working principle is as follows: when the automatic stop type blood return prevention precise filtering infusion set is used, the check valve 300 is arranged between the liquid storage cavity 120 and the plug 410, so that the check valve 300 is convenient to mount and dismount while the backflow of liquid medicine is avoided; the filter screen 424 can be made of a high-density virus filtering composite material by adding the inverted triangular screw cap 423 and the filter screen 424 to the air valve 420, but the material has low air permeability, the obstruction of the filter screen 424 to air circulation is reduced by adding the surface of the filter screen 424, and simultaneously, viruses in the air can be prevented from being mixed into liquid medicine, so that a patient receives cross infection.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a stop-and-go blood return prevention secondary filter transfusion system which characterized in that includes:
the infusion apparatus body (100) comprises a main catheter (110), a liquid storage cavity (120) arranged at the upper part of the main catheter (110) and an adjusting valve (130) arranged on the main catheter (110);
a syringe (200) including a mounting head (330) mounted at a lower portion of the main tube (110), an injection hose (220) mounted at a lower portion of the mounting head (330), and an injection needle (230) mounted at a lower portion of the injection hose (220);
the check valve (300) comprises a shell (310) arranged at the upper part of the liquid storage cavity (120), a plug (320) arranged in the inner cavity of the shell (310), a connector (210) arranged at the top of the shell (310) and a convex block (340) arranged at the bottom of the connector (210);
the plug-in assembly (400) comprises a plug-in connector (410) arranged on the upper part of the connector (210) and an air valve (420) arranged on the side wall of the plug-in connector (410).
2. The automatic stop type blood return prevention precise filtering infusion set according to claim 1, wherein the air valve (420) comprises an air pipe (421) arranged on the plug (410), a ventilation head (422) arranged at the other end of the air pipe (421), a screw cap (423) arranged at the upper part of the ventilation head (422) and a filter screen (424) arranged on the screw cap (423).
3. The automatic stop blood return prevention precise filtering infusion set according to claim 1, wherein the connector (210) is in interference connection with the main catheter (110), and the mounting head (330) is in interference connection with the plug (410).
4. The automatic-stop blood-return-preventing precise-filtering infusion set according to claim 1, wherein the plug (320) is in an inverted funnel shape, and the three convex blocks (340) are equidistantly distributed at the bottom of the inner cavity of the shell (310).
5. The automatic stop blood return prevention precise filtration infusion set according to claim 1, wherein the upper surface of the air permeable head (422) is in a grid shape.
6. The automatic stop blood return prevention precise filtering infusion set according to claim 1, wherein the top of the screw cap (423) is funnel-shaped, and four filter screens (424) are arranged at the top of the screw cap (423).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023128462.1U CN215134622U (en) | 2020-12-23 | 2020-12-23 | Automatic stop type blood return prevention precise filtering infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023128462.1U CN215134622U (en) | 2020-12-23 | 2020-12-23 | Automatic stop type blood return prevention precise filtering infusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215134622U true CN215134622U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023128462.1U Active CN215134622U (en) | 2020-12-23 | 2020-12-23 | Automatic stop type blood return prevention precise filtering infusion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215134622U (en) |
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2020
- 2020-12-23 CN CN202023128462.1U patent/CN215134622U/en active Active
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