CN204723578U - There is the medical pressure extension tube of check valve - Google Patents
There is the medical pressure extension tube of check valve Download PDFInfo
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- CN204723578U CN204723578U CN201520266414.9U CN201520266414U CN204723578U CN 204723578 U CN204723578 U CN 204723578U CN 201520266414 U CN201520266414 U CN 201520266414U CN 204723578 U CN204723578 U CN 204723578U
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- valve
- check valve
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- extension tube
- spool
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Abstract
This utility model relates to a kind of medical pressure extension tube with check valve, comprise body, be characterised in that: body middle part is connected with the check valve preventing liquid from backflowing, connection Rule, body one end public access mouth, the body other end connects Rule maternal interface, check valve is made up of valve body, valve gap and the spool be arranged in valve body, is provided with elastomeric material and makes in the spool of duckbill in valve body, and valve gap and valve body and body link are Rule pyramidal structure.Advantage is: can make the flowing being kept a direction by the liquid of pressure extension tube, stops that liquid is reverse passes through, and ensure that carrying out smoothly of contrasting effects and intervene operation.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly relates to a kind of medical pressure extension tube with check valve.
Background technology
Interventional therapy operation passes through vessel lumen by means of interposing catheter, focus is realized to the emerging medical skill of one of low wound Diagnosis and Treat, compared with traditional medical skill, Endovascular Interventions technology is not only easy to operate, and the wound of interventional therapy is low, can alleviate the misery of patient, Operative risk is less.As being applied to the diseases such as clinical treatment cerebrovascular, cardiovascular diseases, liver cirrhosis, hepatocarcinoma, pulmonary carcinoma, aneurysm, vascular malformation, over the course for the treatment of, need to be equipped with equipment and the various extension tubes such as image documentation equipment angiography machine, fluoroscopic machine, CT, B ultrasonic.The various extension tubes used clinically at present do not possess check valve, liquid reflux phenomenon is there will be when practical operation, such as: when injecting contrast agent by interposing catheter and extension tube to human body, need certain speed and dosage, because contrast agent itself has certain viscosity, after manually injecting, meeting generating portion contrast agent reflux, not only can affect contrasting effects, delays operating time but also cause inconvenience to medical worker.
Summary of the invention
This utility model provides a kind of and prevents liquid reflux, ensures the medical pressure extension tube with check valve that intervene operation carries out smoothly for solving in known technology the technical problem that exists.
The technical scheme that this utility model is taked for the technical problem existed in solution known technology is:
There is the medical pressure extension tube of check valve, comprise body, it is characterized in that: described body middle part is connected with the check valve preventing liquid from backflowing, connection Rule, described body one end public access mouth, the body other end connects Rule maternal interface, described check valve is made up of valve body, valve gap and the spool be arranged in valve body, is provided with elastomeric material and makes in the spool of duckbill in valve body, and described valve gap and valve body and body link are Rule pyramidal structure.
This utility model can also adopt following technical scheme:
Described Rule public access mouth, Rule maternal interface, valve body and valve gap adopt hard PC transparent material to make.
Described spool is that softer, elastic silica gel material makes.
The advantage that this utility model has and good effect are: because this utility model adopts technique scheme, namely by being connected with the check valve that controllable liquid flows in pressure extension tube, in its natural state during the flowing of pressure extension tube no liquid, the spool duckbilled top of check valve is closure state; When liquid forward flow, spool duckbilled forward opens under certain impulse force, and now, liquid can smoothly by the duckbilled port of spool; When liquid produces reverse flow, the duckbill inclined-plane that the pressure that its working fluid produces acts on spool is outside, and under this active force, spool duckbilled top can be compacted, and working fluid cannot be passed through.Flowing pressure value is larger within the specific limits, spool duckbilled pressure tighter, and then can make the flowing being kept a direction by the liquid of pressure extension tube, stops that liquid is reverse to be passed through, and ensure that carrying out smoothly of contrasting effects and intervene operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the decomposition chart of check valve in Fig. 1.
In figure: 1, body; 2, check valve; 2-1, valve gap; 2-2, valve body; 2-3, spool; 3, Rule maternal interface; 4, Rule public access mouth.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, have the medical pressure extension tube of check valve, comprise body 1, described body middle part is connected with the check valve 2 preventing liquid from backflowing, and connection Rule, described body one end public access mouth 4, the body other end connects Rule maternal interface 3.Described check valve is made up of valve body 2-2, valve gap 2-1 and the spool 2-3 be arranged in valve body, is provided with elastomeric material and makes in the spool of duckbill in valve body, and described valve gap and valve body and body link are Rule pyramidal structure.
In the present embodiment, described Rule public access mouth, Rule maternal interface, valve body and valve gap adopt hard PC transparent material to make.
In the present embodiment, described spool is that softer, elastic silica gel material makes.
During use, pressure extension tube is connected with other interposing catheter, and by Rule public access mouth of body end, the locking of Rule maternal interface, to realize the input of various liquid medium.
In its natural state during the flowing of pressure extension tube no liquid, the spool duckbilled top of check valve is closure state; When liquid forward flow, spool duckbilled forward opens under certain impulse force, and now, liquid can smoothly by the duckbilled port of spool; When liquid produces reverse flow, the duckbill inclined-plane that the pressure that its working fluid produces acts on spool is outside, and under this active force, spool duckbilled top can be compacted, and working fluid cannot be passed through.Flowing pressure value is larger within the specific limits, spool duckbilled pressure tighter, and then can make the flowing being kept a direction by the liquid of pressure extension tube, stops that liquid is reverse to be passed through, and ensure that carrying out smoothly of contrasting effects and intervene operation.
The embodiment that this utility model accompanying drawing describes is exemplary, only for explaining this utility model, and can not be interpreted as restriction of the present utility model.
Claims (3)
1. one kind has the medical pressure extension tube of check valve, comprise body, it is characterized in that: described body middle part is connected with the check valve preventing liquid from backflowing, connection Rule, described body one end public access mouth, the body other end connects Rule maternal interface, described check valve is made up of valve body, valve gap and the spool be arranged in valve body, is provided with elastomeric material and makes in the spool of duckbill in valve body, and described valve gap and valve body and body link are Rule pyramidal structure.
2. the medical pressure extension tube with check valve according to claim 1, is characterized in that: described Rule public access mouth, Rule maternal interface, valve body and valve gap adopt hard PC transparent material to make.
3. the medical pressure extension tube with check valve according to claim 1, is characterized in that: described spool is that softer, elastic silica gel material makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520266414.9U CN204723578U (en) | 2015-04-27 | 2015-04-27 | There is the medical pressure extension tube of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520266414.9U CN204723578U (en) | 2015-04-27 | 2015-04-27 | There is the medical pressure extension tube of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204723578U true CN204723578U (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520266414.9U Active CN204723578U (en) | 2015-04-27 | 2015-04-27 | There is the medical pressure extension tube of check valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN204723578U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107019835A (en) * | 2017-04-13 | 2017-08-08 | 江苏立峰生物科技有限公司 | Stop the trachea cannula of liquid device with dosing |
| CN107929833A (en) * | 2017-12-28 | 2018-04-20 | 广州润虹医药科技股份有限公司 | A kind of anti-backflow negative pressure drainage device |
| CN109939344A (en) * | 2019-03-06 | 2019-06-28 | 郑州大学第一附属医院 | Pressure extension tube and its application method with anti-reflux function |
| CN115487397A (en) * | 2022-11-21 | 2022-12-20 | 深圳麦普奇医疗科技有限公司 | Anti-backflow light-shading pressure extension tube |
-
2015
- 2015-04-27 CN CN201520266414.9U patent/CN204723578U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107019835A (en) * | 2017-04-13 | 2017-08-08 | 江苏立峰生物科技有限公司 | Stop the trachea cannula of liquid device with dosing |
| CN107929833A (en) * | 2017-12-28 | 2018-04-20 | 广州润虹医药科技股份有限公司 | A kind of anti-backflow negative pressure drainage device |
| CN109939344A (en) * | 2019-03-06 | 2019-06-28 | 郑州大学第一附属医院 | Pressure extension tube and its application method with anti-reflux function |
| CN109939344B (en) * | 2019-03-06 | 2024-02-23 | 郑州大学第一附属医院 | Pressure extension tube with anti-reflux function and application method thereof |
| CN115487397A (en) * | 2022-11-21 | 2022-12-20 | 深圳麦普奇医疗科技有限公司 | Anti-backflow light-shading pressure extension tube |
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