CN202236533U - Check valve for hemodialysis machine - Google Patents
Check valve for hemodialysis machine Download PDFInfo
- Publication number
- CN202236533U CN202236533U CN201120400831XU CN201120400831U CN202236533U CN 202236533 U CN202236533 U CN 202236533U CN 201120400831X U CN201120400831X U CN 201120400831XU CN 201120400831 U CN201120400831 U CN 201120400831U CN 202236533 U CN202236533 U CN 202236533U
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- CN
- China
- Prior art keywords
- joint
- check valve
- hemodialysis machine
- diaphragm
- inner tube
- 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
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Abstract
The utility model discloses a check valve for a hemodialysis machine, which comprises a first joint and a second joint. Both the first joint and the second joint are made of PVC (polyvinyl chloride) materials and are through pipes, a check valve cavity is formed after the first joint is fixedly connected with the second joint, a diaphragm is arranged in the check valve cavity, a flared inner tube is arranged in the second joint, liquid pervious holes are distributed on the wall of the inner tube, and the diaphragm is disposed at an orifice of the inner tube. Besides, a connecting unit is arranged between the first joint and the second joint. Since the first joint and the second joint of the check valve are made of PVC materials, oxidation of the first joint and the second joint which contact with liquid medicine for a long time is avoided and pollution to liquid medicine is prevented. When flowing in the check valve, liquid medicine can flow along a direction facing the orifice of the inner tube only, and the diaphragm can cling to the inner wall of the first joint to block the valve body if the liquid medicine flows along a direction reverse to the inner tube, so that backflow is prevented. In addition, the check valve for the hemodialysis machine is simple in structure and safe in use.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of liquid pipe connection that is applicable to haemodialysis control unit.
Background technology
Check valve is one of vitals on the haemodialysis control unit, plays the one-way flow of control liquid.At present, the check valve that uses on the haemodialysis control unit generally contains metal parts, and metal parts uses for a long time to contact with liquid and gets rusty easily, thereby causes medical fluid to pollute, and haemodialysis control unit is repaired safeguard frequent.
The utility model content
This utility model technical problem to be solved provides a kind of one-way valve for hemodialysis machine simple in structure, easy to use.
For solving the problems of the technologies described above; The technical scheme of this utility model is: one-way valve for hemodialysis machine; Comprise first joint and second joint of PVC structure, said first joint and second joint are through-pipe structure, and said first joint is connected with said second joint and is formed with the check valve cavity after fixing; Be provided with diaphragm in the said check valve cavity; Be provided with the interior pipe that is bell mouth shape in said second joint, be distributed with liquid-through hole on the said inner pipe wall, said diaphragm is positioned over the mouth of pipe place of said interior pipe; Also be provided with plug assembly between said first joint and said second joint.
As optimized technical scheme, said plug assembly comprises the spliced eye that is arranged in said first joint and is arranged on the connection-peg that is used with said spliced eye on said second joint.
As optimized technical scheme, said spliced eye is set to two, and said grafting body also is set to two.
As the improvement to technique scheme, said spliced eye is provided with L-shaped, and said grafting body also is provided with L-shaped.
Owing to adopted technique scheme, the beneficial effect of this utility model is: first joint of check valve and second joint are the PVC material and process, and avoid long-term the contact with medical use liquid to produce oxidation, prevent that medical use liquid from producing pollution; During liquid flow, can only flow towards the mouth of pipe direction of interior pipe, if thereby dorsad tube side to flowing then diaphragm can be close on the inwall of first joint valve body is stopped up, reach and prevent the purpose that flows backwards, simple in structure, safe in utilization.
Description of drawings
Fig. 1 is the split structural representation of this utility model embodiment;
Fig. 2 is the utilization structure sketch map of this utility model embodiment;
Among the figure: 1-first joint; 2-second joint; The 3-diaphragm; Pipe in the 4-; The 5-liquid-through hole; The 6-spliced eye; 7-grafting body.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth this utility model.In the detailed description below, some example embodiment of this utility model has only been described through the mode of explanation.Undoubtedly, those of ordinary skill in the art can recognize, under the situation of spirit that does not depart from this utility model and scope, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used to limit the protection domain of claim.
Like the one-way valve for hemodialysis machine shown in Fig. 1 and Fig. 2 are common; First joint 1 and second joint 2 that comprise the PVC structure; Said first joint 1 and second joint 2 are through-pipe structure, and long-term the contact yet with medical use liquid of PVC material can not produce oxidation, thereby avoids medical use liquid is produced pollution.
Said first joint 1 is connected with said second joint 2 and is formed with the check valve cavity after fixing; Be provided with diaphragm 3 in the said check valve cavity; Be provided with the interior pipe 4 that is bell mouth shape in said second joint 2; Be distributed with liquid-through hole 5 on pipe 4 tube walls in said, said diaphragm 3 is positioned over the mouth of pipe place of said interior pipe 4; Liquid flows towards interior pipe 4 mouth of pipe directions during use, under the effect of fluid pressure, is formed with the slit between the inwall of diaphragm 3 peripheries and first joint 1, liquid is passed through smoothly, and flow out the check valve cavity through the liquid-through hole 5 that is provided with on the interior pipe 4; If when producing reverse flow, diaphragm 3 then closely contacts with the inwall of first joint 1 owing to its periphery of fluidic pressure, and barrier liquid flows backwards, thereby reaches the purpose that realizes one-way flow.
Also be provided with plug assembly between said first joint 1 and said second joint 2; Said plug assembly comprises the spliced eye 6 that is arranged in said first joint 1 and is arranged on the grafting body 7 that is used with said spliced eye on said second joint 2; And said spliced eye 6 is provided with L-shaped, and said grafting body 7 also is provided with L-shaped.Grafting body 7 is used with spliced eye 6; Make first joint 1 and 2 firm being fixed together of said second joint; Spliced eye described in the present embodiment 6 is set to two; Said grafting body 7 also is set to two, for the stationarity that first joint 1 is connected with second joint 2, a plurality of spliced eyes 6 and grafting body 7 can be set respectively also.
More than show and described the advantage of ultimate principle, principal character and this utility model of this utility model.The technical staff of the industry should understand; This utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the description that this utility model just is described; Under the prerequisite that does not break away from this utility model spirit and scope, this utility model also has various changes and modifications, and these variations and improvement all fall in this utility model scope that requires protection.This utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. one-way valve for hemodialysis machine; Comprise first joint and second joint of PVC structure, said first joint and second joint are through-pipe structure, it is characterized in that: said first joint is connected with said second joint and is formed with the check valve cavity after fixing; Be provided with diaphragm in the said check valve cavity; Be provided with the interior pipe that is bell mouth shape in said second joint, be distributed with liquid-through hole on the said inner pipe wall, said diaphragm is positioned over the mouth of pipe place of said interior pipe; Also be provided with plug assembly between said first joint and said second joint.
2. one-way valve for hemodialysis machine as claimed in claim 1 is characterized in that: said plug assembly comprises the spliced eye that is arranged in said first joint and is arranged on the connection-peg that is used with said spliced eye on said second joint.
3. one-way valve for hemodialysis machine as claimed in claim 2 is characterized in that: said spliced eye is set to two, and said grafting body also is set to two.
4. one-way valve for hemodialysis machine as claimed in claim 3 is characterized in that: said spliced eye is provided with L-shaped, and said grafting body also is provided with L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120400831XU CN202236533U (en) | 2011-10-13 | 2011-10-13 | Check valve for hemodialysis machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120400831XU CN202236533U (en) | 2011-10-13 | 2011-10-13 | Check valve for hemodialysis machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202236533U true CN202236533U (en) | 2012-05-30 |
Family
ID=46097847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120400831XU Expired - Fee Related CN202236533U (en) | 2011-10-13 | 2011-10-13 | Check valve for hemodialysis machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202236533U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109125863A (en) * | 2018-09-30 | 2019-01-04 | 天津伊腾圣杰医疗器械有限公司 | A kind of multi-functional injecting assembly |
| CN109124799A (en) * | 2018-09-30 | 2019-01-04 | 天津伊腾圣杰医疗器械有限公司 | A kind of imbibition check-valves |
| CN109172928A (en) * | 2018-09-30 | 2019-01-11 | 天津伊腾圣杰医疗器械有限公司 | A kind of injection catheter check-valves |
| CN112316295A (en) * | 2015-03-26 | 2021-02-05 | 贝克顿·迪金森公司 | Improved automatic stop vent plug |
-
2011
- 2011-10-13 CN CN201120400831XU patent/CN202236533U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112316295A (en) * | 2015-03-26 | 2021-02-05 | 贝克顿·迪金森公司 | Improved automatic stop vent plug |
| CN112316295B (en) * | 2015-03-26 | 2022-08-05 | 贝克顿·迪金森公司 | Improved automatic stop vent plug |
| CN109125863A (en) * | 2018-09-30 | 2019-01-04 | 天津伊腾圣杰医疗器械有限公司 | A kind of multi-functional injecting assembly |
| CN109124799A (en) * | 2018-09-30 | 2019-01-04 | 天津伊腾圣杰医疗器械有限公司 | A kind of imbibition check-valves |
| CN109172928A (en) * | 2018-09-30 | 2019-01-11 | 天津伊腾圣杰医疗器械有限公司 | A kind of injection catheter check-valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20121013 |