CN211214723U - Low drug adsorption precise filtration infusion extension tube - Google Patents
Low drug adsorption precise filtration infusion extension tube Download PDFInfo
- Publication number
- CN211214723U CN211214723U CN201921918403.9U CN201921918403U CN211214723U CN 211214723 U CN211214723 U CN 211214723U CN 201921918403 U CN201921918403 U CN 201921918403U CN 211214723 U CN211214723 U CN 211214723U
- Authority
- CN
- China
- Prior art keywords
- liquid
- low drug
- drug adsorption
- catheter
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a low drug adsorption microfiltration prolongs infusion long tube, including pipe and liquid medicine filter, the one end of pipe is equipped with interior cone joint, the other end is equipped with outer cone joint, the liquid medicine filter sets up on the pipe, the liquid medicine filter includes casing and lower casing, it is equipped with inlet channel to go up casing one end, the other end is equipped with curved last concave surface, it is equipped with the breach to go up the position that the concave surface is relative with inlet channel, the breach top is equipped with the ventilated membrane, it is equipped with the bleeder vent with ventilated membrane relative position to go up the casing, the bleeder vent is covered to the ventilated membrane, outlet channel's top is equipped with a plurality of archs, it is fixed in casing upper portion down to go up the casing, the connection face of the two is equipped with filtration membrane, and on filtration membrane surface fixed surface is protruding, and. The utility model has the advantages that: can filter insoluble particles with particle size of 2 μm or more in the medicinal liquid, and prevent adverse reaction caused by insoluble particles with particle size of 5 μm or more in the medicinal liquid.
Description
Technical Field
The utility model relates to an infusion tube, in particular to a low drug adsorption precise filtration prolonged infusion long tube.
Background
Infusion is an essential auxiliary means for clinical treatment of diseases, and infusion by an infusion pump has great significance for many diseases, so that infusion extension tubes are widely used in clinical infusion pump administration.
In the infusion extension tube circulated in the existing market, in the process of carrying out infusion pump administration on a patient through the infusion extension tube, a liquid medicine filter can only filter insoluble particles with the particle size of more than 15 microns in liquid medicine, and the insoluble particles with the particle size of more than 5 microns can cause adverse reactions such as venous bleeding, phlebitis, granuloma, anaphylactic reaction, pyrogen reaction, thrombocytopenia and the like. Moreover, the traditional infusion extension tube is generally made of PVC materials, and the adsorption degree of PVC on the effective components of the medicine can reach about 40%, so that the maximum treatment effect of the medicine is seriously reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiments of the present invention provide a low drug adsorption microfiltration extended infusion tube.
The embodiment of the utility model provides a low drug adsorption microfiltration prolongs infusion long tube, including pipe and liquid medicine filter, the one end of pipe is equipped with interior cone joint, and the other end is equipped with outer cone joint, the liquid medicine filter set up in on the pipe, the liquid medicine filter includes upper housing and lower casing, upper housing one end is equipped with the feed liquor passageway, and the other end is equipped with curved concave surface, the position that the concave surface is relative with the feed liquor passageway is equipped with the breach, be equipped with the ventilated membrane above the breach, the upper housing with the ventilated membrane relative position be equipped with the bleeder vent, the ventilated membrane covers the bleeder vent, the top of liquid outlet channel is equipped with a plurality of archs, upper housing is fixed in lower casing upper portion, the connection face of the two is equipped with filtration membrane, and filtration membrane lower surface fixes on the arch, and with the edge laminating of concave surface, the breathable film is a breathable waterproof film, and the filtering film is a filtering film of 2-5 microns.
Further, a circular groove is formed in the lower shell, and the liquid outlet channel extends along the radial direction of the groove and is close to the inner wall of the groove.
Further, the inlet channel with be equipped with the transition space between the breach, the top in transition space the surface of going up the casing is equipped with bellied disc, the bleeder vent sets up on the disc.
Further, the liquid inlet channel is provided with a liquid outlet joint, and the liquid outlet channel is provided with a liquid inlet joint.
Furthermore, a liquid stopping clamp is arranged on the guide pipe.
Furthermore, the catheter and the liquid medicine filter are both formed by injection molding of TPE materials.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the utility model discloses a low drug adsorption microfiltration prolongs infusion long tube can filter the insoluble particle more than 2 mu m in the liquid medicine, prior art compares, the utility model discloses can effectively prevent in the liquid medicine that the insoluble particle more than 5 mu m arouses bad reactions such as the venous bleeding, phlebitis, granuloma, anaphylactic reaction, pyrogen reaction and platelet reduction.
Drawings
FIG. 1 is a schematic view of a low drug adsorption precision filtration long infusion tube of the present invention;
fig. 2 is a schematic view of the liquid medicine filter 4 of fig. 1.
In the figure: 1-inner cone joint, 2-catheter, 3-liquid stopping clip, 4-liquid medicine filter, 5-outer cone joint, 6-upper shell, 7-lower shell, 8-liquid inlet channel, 9-upper concave surface, 10-notch, 11-transition space, 12-observation port, 13-liquid outlet joint, 14-liquid outlet channel, 15-bulge, 16-filtering membrane, 17-liquid inlet joint and 18-breathable membrane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a low drug adsorption precise filtration infusion extension tube, which includes a catheter 2 and a liquid medicine filter 4.
One end of the conduit 2 is provided with an inner conical joint 1, and the other end is provided with an outer conical joint 5. In this embodiment, the conduit 2 is divided into two sections, the first section of conduit and the inner conical joint 1 are integrally molded by injection molding and extrusion, and the second section of conduit and the outer conical joint 5 are integrally molded by injection molding and extrusion.
The liquid medicine filter 4 is disposed on the conduit 2, in this embodiment, the liquid medicine filter 4 is respectively connected to an end of the first section of conduit away from the inner conical joint 1 and an end of the second section of conduit away from the outer conical joint 5.
Referring to fig. 2, the liquid medicine filter 4 includes an upper casing 6 and a lower casing 7, one end of the upper casing 6 is provided with a liquid inlet channel 8, the other end is provided with an arc-shaped upper concave surface 9, the liquid inlet channel 8 is a circular pipeline, one end of the liquid inlet channel 8 near the inner side extends into the upper casing 6, the end is opposite to the upper concave surface 9, a notch 10 is arranged at a position of the upper concave surface 9 opposite to the liquid inlet channel 8, a transition space 11 is formed between the notch 10 and the liquid inlet channel 8, a breathable film 18 is arranged above the transition space 11, a disc protruding outwards is arranged at a position of the surface of the upper casing 6 opposite to the transition space 11, the disc is provided with a breathable hole 12 communicated with the transition space 11, the breathable film 18 is fixedly attached to the inner surface of the disc and covers the breathable hole 12, wherein the breathable film 18 is a breathable waterproof film, when air bubbles are generated in the chemical filter 4, the air bubbles are discharged from the vent hole 12 through the air permeable membrane 18. And a liquid outlet joint 13 is arranged at one end of the liquid inlet channel 8 close to the outside, and the liquid outlet joint 13 is connected with the first section of guide pipe.
A circular groove is formed in the lower shell 7, a liquid outlet channel 14 is formed in the bottom of the lower shell 7, and the liquid outlet channel 14 extends along the radial direction of the groove and is close to the inner wall of the groove. A plurality of bulges 15 are arranged above the liquid outlet channel 14, the upper shell 6 is fixed at the upper part of the lower shell 7, a filtering membrane 16 is arranged on the connecting surface of the upper shell and the lower shell, and the lower surface of the filtering membrane 16 is fixed on the bulges 15 and is attached to the edge of the upper concave surface 9. And a liquid inlet joint 17 is arranged at one end of the liquid outlet channel 14 close to the outside, and the liquid inlet joint 17 is connected with the second end conduit.
In order to ensure that the liquid medicine filter 4 can filter insoluble particles with the particle size of more than 5 microns in the liquid medicine, the filtering membrane 10 is selected from 16 filtering membranes with the particle size of less than 5 microns, and the filtering membrane with the particle size of 2-5 microns is selected according to the requirement of actual filtering precision, so that adverse reactions such as venous bleeding, phlebitis, granuloma, anaphylactic reaction, pyrogen reaction, thrombocytopenia and the like caused by the insoluble particles with the particle size of more than 5 microns in the liquid medicine can be effectively prevented.
In order to facilitate the control of the liquid medicine in the catheter 2 to stop in time, a liquid stopping clip 3 can be arranged on the catheter 2.
Because general pipe adopts the PVC material to make, the PVC material has stronger adsorption to the liquid medicine, can reduce the treatment of medicine itself, in this application pipe 2 with liquid medicine filter 4 all adopts TPE material injection moulding. The adsorption of the TPE material to the medicine is negligible, so that the curative effect of the medicine cannot be reduced due to medicine adsorption in the clinical infusion process of the infusion extension tube made of the TPE material.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A low drug adsorption precise filtration infusion extension tube is characterized in that: comprises a catheter and a liquid medicine filter, wherein one end of the catheter is provided with an inner conical joint, the other end of the catheter is provided with an outer conical joint, the liquid medicine filter is arranged on the catheter and comprises an upper shell and a lower shell, one end of the upper shell is provided with a liquid inlet channel, the other end of the upper shell is provided with an arc-shaped upper concave surface, a notch is arranged at the position of the upper concave surface opposite to the liquid inlet channel, a breathable film is arranged above the notch, the position of the upper shell opposite to the breathable film is provided with a breathable hole, the breathable film covers the breathable hole, a liquid outlet channel is arranged at the bottom of the lower shell, a plurality of bulges are arranged above the liquid outlet channel, the upper shell is fixed at the upper part of the lower shell, a filtering film is arranged on the connecting surface of the upper shell and the lower shell, the filtering membrane is a filtering membrane with the diameter of 2-5 mu m.
2. The long tube of low drug adsorption microfiltration delayed infusion according to claim 1 wherein: a circular groove is formed in the lower shell, and the liquid outlet channel extends along the radial direction of the groove and is close to the inner wall of the groove.
3. The long tube of low drug adsorption microfiltration delayed infusion according to claim 1 wherein: the inlet channel with be equipped with the transition space between the breach, the top in transition space the surface of going up the casing is equipped with bellied disc, the bleeder vent sets up on the disc.
4. The long tube of low drug adsorption microfiltration delayed infusion according to claim 1 wherein: the liquid inlet channel is provided with a liquid outlet joint, and the liquid outlet channel is provided with a liquid inlet joint.
5. The long tube of low drug adsorption microfiltration delayed infusion according to claim 1 wherein: the catheter is also provided with a liquid stopping clamp.
6. The long tube of low drug adsorption microfiltration delayed infusion according to claim 1 wherein: the catheter and the liquid medicine filter are both formed by injection molding of TPE materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921918403.9U CN211214723U (en) | 2019-11-07 | 2019-11-07 | Low drug adsorption precise filtration infusion extension tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921918403.9U CN211214723U (en) | 2019-11-07 | 2019-11-07 | Low drug adsorption precise filtration infusion extension tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211214723U true CN211214723U (en) | 2020-08-11 |
Family
ID=71924374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921918403.9U Expired - Fee Related CN211214723U (en) | 2019-11-07 | 2019-11-07 | Low drug adsorption precise filtration infusion extension tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211214723U (en) |
-
2019
- 2019-11-07 CN CN201921918403.9U patent/CN211214723U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6702776B2 (en) | Blood vessel catheter | |
| US3882024A (en) | Header for stagnation-sensitive liquids | |
| US7615034B2 (en) | Multi-lumen catheter with protective sheath | |
| US5330425A (en) | Blow molded venous drip chamber for hemodialysis | |
| CN101563044B (en) | Vascular access device housing venting | |
| US10543353B2 (en) | Blood flow reversal valves and related systems and methods | |
| EP2564886B1 (en) | Dialysis catheter | |
| US20040195165A1 (en) | Hollow fiber filter for extracorporeal blood circuit | |
| JPS60158867A (en) | Double cavity catheter for blood purifer in body | |
| EP1442761B1 (en) | Bacterial retentive, air venting, intravenous filter | |
| JPS58112549A (en) | Fluid filter | |
| JPS6129748B2 (en) | ||
| CA2560177A1 (en) | A connector for a fluid line in an extracorporeal circuit | |
| JP5007410B2 (en) | Pressure sensor | |
| CN211214723U (en) | Low drug adsorption precise filtration infusion extension tube | |
| CN203763575U (en) | Phthalate-free precise filtering infusion apparatus | |
| JPH05123396A (en) | Entrance header for artificial lung and artificial lung using it | |
| CN215915958U (en) | Infusion device with volute shape | |
| CN214859943U (en) | Multifunctional transfusion system | |
| CN218501078U (en) | Quick exhaust tee bend device | |
| CN213490999U (en) | Hemodialyzer with improved structure | |
| US11833287B2 (en) | Air trap chamber and extracorporeal circulation circuit | |
| CN212187465U (en) | Take tee bend multichannel infusion extension pipe | |
| CN211410392U (en) | Pump fluid pipeline for preventing acute complications of dialysis patients | |
| CN208943082U (en) | A kind of precision liquid medicine is protected from light filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20211107 |