CN211410419U - Anti-reflux infusion extension tube - Google Patents
Anti-reflux infusion extension tube Download PDFInfo
- Publication number
- CN211410419U CN211410419U CN201921194014.6U CN201921194014U CN211410419U CN 211410419 U CN211410419 U CN 211410419U CN 201921194014 U CN201921194014 U CN 201921194014U CN 211410419 U CN211410419 U CN 211410419U
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- China
- Prior art keywords
- reverse flow
- extension tube
- valve
- fixedly arranged
- diaphragm
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- 238000001802 infusion Methods 0.000 title claims abstract description 31
- 230000000151 anti-reflux effect Effects 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 230000000903 blocking effect Effects 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 210000003462 vein Anatomy 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000010253 intravenous injection Methods 0.000 claims description 2
- 239000003814 drug Substances 0.000 abstract description 24
- 239000008280 blood Substances 0.000 abstract description 7
- 210000004369 blood Anatomy 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract 8
- 239000012528 membrane Substances 0.000 description 8
- 229940079593 drug Drugs 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001990 intravenous administration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 206010020772 Hypertension Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
An anti-reflux infusion extension tube comprises an extension tube body, wherein a reverse blocking valve is fixedly arranged on the extension tube body, and a dosing tee joint is fixedly arranged on the extension tube body between the reverse blocking valve and a vein needle connector; the reverse flow prevention valve is internally provided with a reverse flow prevention cavity, two ends of the reverse flow prevention valve are respectively fixedly provided with a liquid inlet interface and a liquid outlet interface which are communicated with the reverse flow prevention cavity, the reverse flow prevention valve is fixedly arranged on an extension pipe body through the liquid inlet interface and the liquid outlet interface, a reverse flow prevention diaphragm is movably arranged in the reverse flow prevention cavity and comprises a diaphragm body, a plurality of supporting parts are fixedly arranged at the bottom of the diaphragm body, an overflowing gap is arranged between the supporting parts, and the front end of the reverse flow prevention cavity is provided with a sealing end face matched with the diaphragm body. The utility model discloses an extension pipe can not only realize the function of ordinary extension pipe extension transfer line, can also effectively prevent liquid medicine and blood backward flow through hindering the check valve moreover, and it has advantages such as simple structure is reliable, the security is high, convenient to use.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to an anti-reflux infusion extension tube.
Background
The transfer line is a commonly used medicine equipment, and in the in-service use in-process, the transfer line can influence the use because of the not enough of length sometimes, and then influences the treatment of disease. To reduce this, an extension tube is usually added between the infusion tube and the intravenous needle. Extension pipe function singleness among the prior art only has the effect of extension infusion pipeline, when meetting the condition that needs extra medicine, often need break off the connection between extension pipe and the vein needle, follow the quiet medicine that pushes away of vein needle afterwards, this kind of way not only time of having wasted but also when vein needle hose and extension pipe reconnection, make the bubble get into from the kneck easily, and the kneck is because the disinfection problem takes place easily and pollutes, this has brought serious potential safety hazard for the patient. Meanwhile, the liquid medicine is in counter flow and even blood return phenomenon can be caused due to the high blood pressure of the patient, the movement of the patient and other reasons in the infusion process, and the blood return phenomenon can be caused when the blood return is kept in the pipeline for a long time, so that the safety of the patient is threatened.
Disclosure of Invention
The utility model aims to solve the technical problem that to the not enough of prior art, provide one kind can be used for injecting the medicine and can not produce the anti-reflux infusion extension tube against the current, its simple structure, convenient to use, safe and reliable.
The technical problem to be solved by the utility model is realized through the following technical scheme. The utility model relates to a prevent infusion extension tube against current, its characteristics are: the intravenous injection device comprises an extension tube body, wherein an inlet of the extension tube body is fixedly provided with an infusion tube interface, and an outlet of the extension tube body is fixedly provided with a venous needle interface; a check valve is fixedly arranged on the extension tube body, and a dosing tee joint is fixedly arranged on the extension tube body between the check valve and the vein needle connector;
the reverse flow resisting valve is provided with a reverse flow resisting cavity, the two ends of the reverse flow resisting valve are respectively fixedly provided with a liquid inlet interface and a liquid outlet interface which are communicated with the reverse flow resisting cavity, the reverse flow resisting valve is fixedly arranged on an extension pipe body through the liquid inlet interface and the liquid outlet interface, a reverse flow resisting diaphragm used for preventing liquid from flowing reversely is movably arranged in the reverse flow resisting cavity, the total height of the reverse flow resisting diaphragm is lower than the total height of the reverse flow resisting cavity, the reverse flow resisting diaphragm comprises a diaphragm body, a plurality of supporting parts are fixedly arranged at the bottom of the diaphragm body, an overflowing gap is arranged between the supporting parts, the front end of the reverse flow resisting cavity is provided with a sealing end face matched with the diaphragm body, and the vertical projection of the liquid inlet interface completely falls into.
Above the utility model relates to a prevent infusion extension tube against current, its further preferred technical scheme or technical characterstic are: the check valve comprises a valve seat body, wherein the front end of the valve seat body is provided with an overflow groove, the valve seat body is fixedly connected with a valve cover for sealing the check groove, the check groove and the valve cover are matched to form a check cavity, and the sealing end surface is the bottom end surface of the valve cover.
Above the utility model relates to a prevent infusion extension tube against current, its further preferred technical scheme or technical characterstic are: the valve cover is provided with a liquid inlet groove, the liquid inlet groove is respectively communicated with the reverse blocking cavity and the liquid inlet interface, and the vertical projection of the liquid inlet groove completely falls on the diaphragm body.
Above the utility model relates to a prevent infusion extension tube against current, its further preferred technical scheme or technical characterstic are: the supporting part is equipped with 2~10, and the even interval arrangement of edge circumferencial direction sets up between the supporting part.
Above the utility model relates to a prevent infusion extension tube against current, its further preferred technical scheme or technical characterstic are: the dosing tee comprises a dosing pipe section, the dosing pipe section is fixedly arranged on the extension pipe body and is communicated, an injection port is fixedly arranged on the dosing pipe section, and a rubber plug cap is fixedly arranged at the inlet of the injection port.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the extension tube of the utility model not only can realize the function of the common extension tube for lengthening the transfusion tube, but also can effectively prevent the backflow of liquid medicine and blood through the check valve; when in transfusion, the liquid medicine enters from the liquid inlet interface and flows out from the liquid outlet interface through the overflow gap between the supporting parts at the bottom of the reverse blocking membrane; when the liquid medicine or the blood flows back, the liquid medicine or the blood jacks up the reverse blocking membrane to enable the reverse blocking membrane to be tightly attached to the sealing end face, so that the reverse blocking effect is realized; the reverse blocking diaphragm is simple and reliable in structure, and can complete switching of conduction or reverse blocking only by means of fluid pressure when in use.
The medicine adding operation can be quickly finished through the medicine adding tee without disconnecting the pipeline, and the pollution of the interface caused by the disinfection problem can be avoided due to the fact that the pipeline is not disconnected; to sum up the utility model has the advantages of simple structure is reliable, the security is high, convenient to use.
(2) The utility model discloses a feed liquor groove on the valve gap can amplify the impact when liquid medicine is carried or liquid medicine flows back, makes to hinder contrary diaphragm and adjusts rapider.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the check valve;
FIG. 3 is a schematic view of a reverse blocking diaphragm;
in the figure, 1 is an extension tube body, 2 is an infusion tube interface, 3 is a vein needle interface, 4 is an anti-reverse valve, 401 is an anti-reverse cavity, 402 is a liquid inlet interface, 403 is a liquid outlet interface, 404 is an anti-reverse membrane, 405 is a support part, 406 is a valve seat body, 407 is a valve cover, 408 is a liquid inlet groove, 409 is a sealing end face, and 5 is a dosing tee.
Detailed Description
The following further describes embodiments of the present invention in order to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
Embodiment 1, an anti-reflux infusion extension tube, referring to fig. 1, comprising an extension tube body 1, an infusion tube interface 2 fixedly installed at an inlet of the extension tube body 1, and a vein needle interface 3 fixedly installed at an outlet of the extension tube body 1; a check valve 4 is fixedly arranged on the extension tube body 1, and a dosing tee joint 5 is fixedly arranged on the extension tube body 1 between the check valve 4 and the intravenous needle connector 3;
referring to fig. 2 and 3, a reverse blocking cavity 401 is arranged in the reverse blocking valve 4, a liquid inlet interface 402 and a liquid outlet interface 403 which are communicated with the reverse blocking cavity 401 are fixedly arranged at two ends of the reverse blocking valve 4 respectively, the reverse blocking valve 4 is fixedly installed on the extension pipe body 1 through the liquid inlet interface 402 and the liquid outlet interface 403, a reverse blocking diaphragm 404 for preventing liquid from flowing reversely is movably installed in the reverse blocking cavity 401, the total height of the reverse blocking diaphragm 404 is lower than the total height of the reverse blocking cavity 401, the reverse blocking diaphragm 404 comprises a diaphragm body, a plurality of supporting parts 405 are fixedly arranged at the bottom of the diaphragm body, an overflowing gap is arranged between the supporting parts 405, a sealing end face 409 matched with the diaphragm body is arranged at the front end of the reverse blocking cavity 401, and the vertical projection of the liquid inlet interface 402 completely falls into the diaphragm body. The supporting part 405 is provided with 2, and 2 overflowing gaps are formed among the 2 supporting parts 405.
The embodiment 2 and the embodiment 1 describe the anti-reflux infusion extension tube, wherein: the number of the support portions 405 is 4. The check valve 4 comprises a valve seat body 406, an overflow groove is formed in the front end of the valve seat body 406, a valve cover 407 for sealing the check groove 4 is fixedly connected to the valve seat body 406, the check groove and the valve cover 407 are matched to form the check cavity 401, and the sealing end face 409 is the bottom end face of the valve cover 407.
An anti-reflux infusion extension tube according to embodiment 3, embodiment 1 or 2, wherein: the number of the support portions 405 is 6. The valve cover 407 is provided with a liquid inlet groove 408, the liquid inlet groove 408 is respectively communicated with the reverse blocking cavity 401 and the liquid inlet interface 402, and the vertical projection of the liquid inlet groove 408 completely falls on the diaphragm body.
An anti-reflux infusion extension tube of example 4, example 1 or 2 or 3 wherein: the number of the supporting parts 405 is 8, and the 8 supporting parts 405 are arranged at intervals along the circumferential direction.
An anti-reflux infusion extension tube according to any one of embodiments 5 and 1 to 4: the number of the supporting portions 405 is 10. The drug adding tee 5 comprises a drug adding pipe section which is fixedly arranged on the extension pipe body and conducted, an injection port is fixedly arranged on the drug adding pipe section, and a rubber plug cap is fixedly arranged at the inlet of the injection port.
When in use, the infusion tube interface 2 and the vein needle interface 3 at the two ends of the utility model are connected between the infusion tube and the vein needle component for prolonging the infusion tube. The Chinese medicine water in the infusion tube enters the extension tube and passes through the check valve 4 to be conveyed into the human body along the vein needle, at the moment, the check membrane 404 in the check valve check cavity 401 is impacted by the medicine water, and the impacted check membrane 404 is supported at the bottom of the check cavity 401 through the supporting part 405, so that the medicine water is conveyed into the vein needle along the overflowing gap between the supporting parts 405. After the transfusion is stopped, the blood of the human body can push the liquid medicine to flow reversely, and at the moment, the reverse blocking membrane 404 is impacted reversely, so that the reverse blocking membrane 404 is attached to the sealing end face 409 at the front end of the reverse blocking cavity 401, and the reverse blocking effect is achieved. When additional medicine is needed, other medicines can be injected into the human body through the medicine adding tee 5.
Claims (5)
1. An anti-reflux infusion extension tube is characterized in that: the intravenous injection device comprises an extension tube body, wherein an inlet of the extension tube body is fixedly provided with an infusion tube interface, and an outlet of the extension tube body is fixedly provided with a venous needle interface; a check valve is fixedly arranged on the extension tube body, and a dosing tee joint is fixedly arranged on the extension tube body between the check valve and the vein needle connector;
the reverse flow resisting valve is provided with a reverse flow resisting cavity, the two ends of the reverse flow resisting valve are respectively fixedly provided with a liquid inlet interface and a liquid outlet interface which are communicated with the reverse flow resisting cavity, the reverse flow resisting valve is fixedly arranged on an extension pipe body through the liquid inlet interface and the liquid outlet interface, a reverse flow resisting diaphragm used for preventing liquid from flowing reversely is movably arranged in the reverse flow resisting cavity, the total height of the reverse flow resisting diaphragm is lower than the total height of the reverse flow resisting cavity, the reverse flow resisting diaphragm comprises a diaphragm body, a plurality of supporting parts are fixedly arranged at the bottom of the diaphragm body, an overflowing gap is arranged between the supporting parts, the front end of the reverse flow resisting cavity is provided with a sealing end face matched with the diaphragm body, and the vertical projection of the liquid inlet interface completely falls into.
2. The anti-reflux infusion extension tube of claim 1, wherein: the check valve comprises a valve seat body, wherein the front end of the valve seat body is provided with an overflow groove, the valve seat body is fixedly connected with a valve cover for sealing the check groove, the check groove and the valve cover are matched to form a check cavity, and the sealing end surface is the bottom end surface of the valve cover.
3. The anti-reflux infusion extension tube of claim 2, wherein: the valve cover is provided with a liquid inlet groove, the liquid inlet groove is respectively communicated with the reverse blocking cavity and the liquid inlet interface, and the vertical projection of the liquid inlet groove completely falls on the diaphragm body.
4. The anti-reflux infusion extension tube of claim 1, wherein: the supporting part is equipped with 2~10, and the even interval arrangement of edge circumferencial direction sets up between the supporting part.
5. The anti-reflux infusion extension tube of claim 1, wherein: the dosing tee comprises a dosing pipe section, the dosing pipe section is fixedly arranged on the extension pipe body and is communicated, an injection port is fixedly arranged on the dosing pipe section, and a rubber plug cap is fixedly arranged at the inlet of the injection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921194014.6U CN211410419U (en) | 2019-07-27 | 2019-07-27 | Anti-reflux infusion extension tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921194014.6U CN211410419U (en) | 2019-07-27 | 2019-07-27 | Anti-reflux infusion extension tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211410419U true CN211410419U (en) | 2020-09-04 |
Family
ID=72282340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921194014.6U Active CN211410419U (en) | 2019-07-27 | 2019-07-27 | Anti-reflux infusion extension tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211410419U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114010905A (en) * | 2021-11-05 | 2022-02-08 | 首都医科大学宣武医院 | Condensed water discharging device of breathing machine |
| CN115316375A (en) * | 2022-08-15 | 2022-11-11 | 四川大学华西医院 | Integrated puncture perfusion catheter for perfusion of abdominal organ transplantation donor |
-
2019
- 2019-07-27 CN CN201921194014.6U patent/CN211410419U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114010905A (en) * | 2021-11-05 | 2022-02-08 | 首都医科大学宣武医院 | Condensed water discharging device of breathing machine |
| CN114010905B (en) * | 2021-11-05 | 2024-05-14 | 首都医科大学宣武医院 | Condensed water discharge device of breathing machine |
| CN115316375A (en) * | 2022-08-15 | 2022-11-11 | 四川大学华西医院 | Integrated puncture perfusion catheter for perfusion of abdominal organ transplantation donor |
| CN115316375B (en) * | 2022-08-15 | 2023-08-18 | 四川大学华西医院 | Integrated puncture perfusion catheter for perfusion of abdominal organ transplantation donor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: LIANYUNGANG TIANNUO OPTICAL INSTRUMENT Co.,Ltd. Assignor: JIANGSU SUYUN MEDICAL MATERIALS Co.,Ltd. Contract record no.: X2024980015881 Denomination of utility model: An anti reflux infusion extension tube Granted publication date: 20200904 License type: Common License Record date: 20240920 |