CN201524349U - Three-way valve for hemodialysis - Google Patents
Three-way valve for hemodialysis Download PDFInfo
- Publication number
- CN201524349U CN201524349U CN2009202193802U CN200920219380U CN201524349U CN 201524349 U CN201524349 U CN 201524349U CN 2009202193802 U CN2009202193802 U CN 2009202193802U CN 200920219380 U CN200920219380 U CN 200920219380U CN 201524349 U CN201524349 U CN 201524349U
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- CN
- China
- Prior art keywords
- hemodialysis
- way valve
- valve
- spool
- valve casing
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- Expired - Fee Related
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Abstract
A three-way valve for hemodialysis comprises a valve casing. A valve core capable of rotating in the valve casing is arranged in the valve casing; the upper end of the valve core extends towards the exterior of the valve casing so as to form a valve handle; a valve core turncap is arranged on the valve handle; three holes which are communicated with one another are formed on the valve core; and three connecting pipes, which are communicated with the inner cavity of the valve casing and correspond to the holes on the valve core, are arranged on the valve casing. The utility model has the advantages of simple structure, convenient use and the like; and by using the three-way valve, other auxiliary medicines can be injected into circulating blood very conveniently during hemodialysis process.
Description
Technical field
This utility model relates to a kind of operational hemodialysis three-way valve of blood purification blood vessel that is used for.
Background technology
Suffer from the end stagerenaldisease patient and need carry out hemodialysis with haemodialysis control unit usually, hemodialysis is to enter dialyser blood chamber by internal fistula vascular puncture blood and dialysis blood vessel arterial end through blood vessel, this moment, dialysis solution entered dialysis fluid chamber on the contrary with blood flow direction, separate by dialyzer between blood and the dialysis solution, reach the blood purification purpose by disperse, Ultrafiltration, mass exchange is finished in dialysis machine.In blood dialysis, 1. often narrow, have reasons such as thrombosis, branch to cause blood flow deficiency in the fistula owing to internal fistula, cause arterial end back suction phenomenon, can't normally go on and influence hemodialysis treatment.Now clinically the employing on the same fistula blood vessel got two root puncture pin blood extracting methods more, with the method for blood flow increasing.2. when hemodialysis finishes, connect the saline blood back after needing to separate arterial end pipeline and puncture needle, cause port to pollute and the blood extravasation phenomenon in separation process this moment easily; 3. in blood dialysis, usually need the ancillary drug of injection in the circulation blood outside some other, particularly when multiple medication, but present stage clinically also do not have pipeline or the joint that multitube connects temporarily.
Summary of the invention
The technical problem that this utility model solves is: hemodialysis three-way valve a kind of simple in structure, easy to use is provided.
The technical solution of the utility model is: a kind of hemodialysis three-way valve is provided, comprise valve casing, being provided with one in described valve casing can be at the spool of described valve casing internal rotation, the formation valve handle is extended in described spool upper end outside described valve casing, on described valve handle, be provided with the spool turncap, on described spool, be provided with three holes of passing through mutually, on described valve casing, be provided with three with described valve casing in the Kongxiang logical, and with described spool on the corresponding connection tube in hole.
As to improvement of the present utility model, in described three connection tubes, wherein there is the central axis of two connection tubes to be a straight line, the central axis of another root connection tube is vertical with this straight line.
As another kind of the present utility model is improved, the central shaft angle of described three connection tubes is 120 degree.
At central axis is respectively to be with an adapter sleeve on collinear two connection tubes, is provided with female thread on the inwall of described adapter sleeve.
Described central axis is that the outer end of collinear two connection tubes is Taper Pipes.
On described spool turncap, be provided with the arrow that is used to indicate flow direction.
Described spool turncap is discoid.
Described spool is provided with three hole internal diameters that pass through mutually and equates, the described internal diameter that is arranged on three connection tubes on the valve casing equates, and three holes of passing through mutually equate with the internal diameter of described three connection tubes.
In being a connection tube in collinear two connection tubes, central axis is serially connected with a flexible hose.
The utlity model has simple in structurely, easy to use, use this three-way valve easily in the blood dialysis, in the advantages such as ancillary drug of injection in circulation blood some other.Use this three-way valve: two positions of 1. when blood flow is not enough, can in same internal fistula blood vessel, puncturing simultaneously, two root puncture pins are connected with the bloody path arterial end, interior three connection tubes of three-way valve this moment communicate simultaneously, two root puncture pin inner bloods are because hemo system blood pump running blood vessel produces interior negative pressure principle, blood is by in the pipeline arterial end suction blood vessel, thereby blood flow increasing is finished hemodialysis smoothly; 2. when hemodialysis finishes, brinish tube for transfusion, arterial puncture needle pipeline port, blood vessel tremulous pulse port are managed in adhesion be connected in hemodialysis three-way valve interface simultaneously, connect the tube for transfusion and the puncture needle valve of normal saline earlier, close blood vessel arterial end valve, make saline wash down puncture needle tube chamber inner blood.Close puncture needle and tube for transfusion valve then, twisting valve core turncap communicates normal saline and blood vessel tremulous pulse port valve, with the slow blood back of normal saline (blood flow 100ml) to health.After blood is back to health fully, termination of pumping.Close artery and vein end clip, pull out puncture needle, the pin mouth connects with aseptic sliver and is depressed into hemostasis, immobilization with adhesive tape.Can reduce opportunities for contamination and oozing phenomenon in the separation process like this.3. in the blood dialysis, the ancillary drug of injection some other in the bloody path of blood circulation outside.Can adopt this three-way valve to connect a plurality of tube for transfusions or syringe administration, convenient medication simultaneously.And existing none well connection tube medication simultaneously temporarily clinically, thereby influenced treatment.
Description of drawings
Fig. 1 is the cross-sectional view of the main apparent direction of a kind of embodiment of this utility model.
Fig. 2 is the cross-sectional view of Fig. 1 side-looking direction.
Fig. 3 is the plan structure sketch map that three connection tubes of Fig. 1 all communicate.
Fig. 4 and Fig. 5 are any two plan structure sketch maps that communicate in three connection tubes.
Fig. 6 is the cross-sectional view of the main apparent direction of the another kind of embodiment of this utility model.
The specific embodiment
Below in conjunction with accompanying drawing, utility model is explained in more detail.
See also Fig. 1 and Fig. 2, what this utility model disclosed is a kind of hemodialysis three-way valve, comprise valve casing 1, being provided with one in described valve casing 1 can be at the spool 2 of described valve casing 1 internal rotation, described spool 2 upper ends are extended outside described valve casing 1 and are formed valve handle 3, on described valve handle 3, be provided with spool turncap 4, for economical with materials and weight reduction, in described valve handle 3 and spool turncap 4 central authorities, be provided with from top to bottom a blind hole 41, on described spool 2, be provided with three holes of passing through mutually 21,22,23, be called first hole 21, second hole 22 and the 3rd hole 23, on described valve casing 1, be provided with three with described valve casing 1 in the Kongxiang logical, and with the hole 21 on the described spool 2,22,23 corresponding connection tubes 11,12,13, be called first connection tube 11, second connection tube 12 and the 3rd connection tube 13, in the present embodiment, at described three connection tubes 11,12, in 13, wherein there is the central axis of first connection tube 11 and second connection tube 12 to be a straight line, the central axis of the 3rd connection tube 13 is vertical with this straight line, form the T font, be provided with external screw thread 131 at the outer wall front end of described the 3rd connection tube 13.Described hemodialysis all is medical grade plastic productions with each parts of three-way valve.On described first connection tube 11 and second connection tube 12, respectively be with an adapter sleeve 14, on the inwall of described adapter sleeve 14, be provided with female thread 141, be used for other device and be connected.The outer end of described first connection tube 11 and second connection tube 12 is Taper Pipes 142, can make things convenient for other object to be locked.Conveniently can also be provided with rotating handle 43 at described spool turncap 4 in order to rotate, described rotating handle 43 is preferably four, uniform distribution.In the present embodiment, the internal diameter in three holes of passing through mutually 21,22,23 that described spool 2 is provided with equates, the described internal diameter that is arranged on three connection tubes 11,12,13 on the valve casing 1 equates, and three holes of passing through mutually 21,22,23 equate with the internal diameter of described three connection tubes 11,12,13.
Obviously, the central shaft angle of described as required three connection tubes 11,12,13 also can be designed to be the structure of 120 degree angles, is the Y-connection structure.
See also Fig. 3 to Fig. 5, Fig. 3 Fig. 3 is the plan structure sketch map that three connection tubes 11,12,13 of Fig. 1 all communicate, in this case, on described spool turncap 4, be provided with and be used to indicate the arrow 42 of flow direction all to point to each self-corresponding connection tube, represent three connection tubes 11,12,13.Fig. 4 represents that second connection tube 12 and the 3rd connection tube 13 (invisible among the figure) communicate, and Fig. 5 represents that first connection tube 11 and the 3rd connection tube 13 communicate, and certainly, only has only the signal of not drawing of first connection tube 11 and second connection tube, 12 situations of communicating in addition.In the present embodiment, described spool turncap 4 is discoid, and certainly, described spool turncap 4 also can be designed to other regular geometric shapes.
See also Fig. 6, Fig. 6 is the cross-sectional view of the main apparent direction of the another kind of embodiment of this utility model.Enforcement embodiment illustrated in fig. 6 and illustrated in figures 1 and 2 is compared, its general structure is identical, different is is serially connected with a flexible hose 5, convenient like this connection in use in central axis is a connection tube in collinear two connection tubes 11,12.
Claims (9)
1. hemodialysis three-way valve, it is characterized in that: comprise valve casing, being provided with one in described valve casing can be at the spool of described valve casing internal rotation, the formation valve handle is extended in described spool upper end outside described valve casing, on described valve handle, be provided with the spool turncap, on described spool, be provided with three holes of passing through mutually, on described valve casing, be provided with three with described valve casing in the Kongxiang logical, and with described spool on the corresponding connection tube in hole.
2. hemodialysis three-way valve according to claim 1 is characterized in that: in described three connection tubes, wherein have the central axis of two connection tubes to be a straight line, the central axis of another root connection tube is vertical with this straight line.
3. hemodialysis three-way valve according to claim 1 is characterized in that: the central shaft angle of described three connection tubes is 120 degree.
4. hemodialysis three-way valve according to claim 2 is characterized in that: at central axis is respectively to be with an adapter sleeve on collinear two connection tubes, is provided with female thread on the inwall of described adapter sleeve.
5. according to claim 2 or 4 described hemodialysis three-way valve, it is characterized in that: described central axis is that the outer end of collinear two connection tubes is Taper Pipes.
6. according to the described hemodialysis three-way valve of any one claim in the claim 1 to 4, it is characterized in that: on described spool turncap, be provided with the arrow that is used to indicate flow direction.
7. hemodialysis three-way valve according to claim 6 is characterized in that: described spool turncap is discoid.
8. hemodialysis three-way valve according to claim 7, it is characterized in that: described spool is provided with three hole internal diameters that pass through mutually and equates, the described internal diameter that is arranged on three connection tubes on the valve casing equates, and three holes of passing through mutually equate with the internal diameter of described three connection tubes.
9. hemodialysis three-way valve according to claim 4 is characterized in that: be serially connected with a flexible hose in central axis is a connection tube in collinear two connection tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202193802U CN201524349U (en) | 2009-10-09 | 2009-10-09 | Three-way valve for hemodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202193802U CN201524349U (en) | 2009-10-09 | 2009-10-09 | Three-way valve for hemodialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201524349U true CN201524349U (en) | 2010-07-14 |
Family
ID=42515650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202193802U Expired - Fee Related CN201524349U (en) | 2009-10-09 | 2009-10-09 | Three-way valve for hemodialysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201524349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107802906A (en) * | 2017-11-21 | 2018-03-16 | 四川大学华西医院 | A kind of blood purification system |
-
2009
- 2009-10-09 CN CN2009202193802U patent/CN201524349U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107802906A (en) * | 2017-11-21 | 2018-03-16 | 四川大学华西医院 | A kind of blood purification system |
| CN107802906B (en) * | 2017-11-21 | 2023-09-22 | 四川大学华西医院 | Blood purifying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20151009 |
|
| EXPY | Termination of patent right or utility model |