CN2579439Y - Flow regulator for infusion - Google Patents
Flow regulator for infusion Download PDFInfo
- Publication number
- CN2579439Y CN2579439Y CN 02249245 CN02249245U CN2579439Y CN 2579439 Y CN2579439 Y CN 2579439Y CN 02249245 CN02249245 CN 02249245 CN 02249245 U CN02249245 U CN 02249245U CN 2579439 Y CN2579439 Y CN 2579439Y
- Authority
- CN
- China
- Prior art keywords
- liquid
- groove
- flow adjuster
- infusion flow
- adjusting valve
- 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 - Lifetime
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model belongs to the technical field of medical equipment. The utility model comprises a liquid control valve and a liquid regulating valve, wherein, the liquid control valve has a joint for a transfusion tube, and the liquid regulating valve has a joint for the transfusion tube. A flow regulating mechanism is arranged between the liquid control valve and the liquid regulating valve. The flow regulating mechanism comprises an annular groove, the cross section of which is gradually changed from big to small, and a matching sealing surface which can correspondingly rotate along the annular groove, wherein, the joint for a transfusion tube is communicated with the annular groove, and the joint for the transfusion tube is communicated with an opening on the sealing surface. When the matching sealing surface correspondingly rotates along the annular groove, the opening is always positioned on the groove. Compared with the existing regulator for a transfusion valve, the utility model has the advantages of simple structure, convenient operation and accurate flow quantity.
Description
This utility model relates to a kind of infusion flow adjuster, belongs to medical instruments field.
When hospital carries out venous transfusion to the patient in the past, generally use very easy infusion regulator, because this infusion regulator is not provided with tangible liquid measure labelling, experienced nurse also often can not judge infusion flow more exactly, thereby infusion flow is not enough or excessive happening occasionally, and causes suffering and has increased workload to the patient.
Granted publication number is: the utility model patent description of CN2360088Y discloses a kind of flow regulator, and the rotating disk upper and lower end face of this flow regulator respectively is provided with week cutting from deep to shallow, by the control of the groove depth between end face flow.
Granted publication number is: the utility model patent description of CN2391621Y discloses a kind of adjustable infusion controller, this adjustable infusion controller is established a ring seal conduit not in the one side of ring-type convex, another side in the ring-type convex is provided with another not ring seal conduit symmetrically again, controls flow by the length that changes conduit between small through hole.
Above-mentioned two kinds of actuators all have common defective, promptly need use two conduits to control flow simultaneously, so complicated operation.Simultaneously, in order to reach corresponding flow control accuracy, manufacturing process also requires very high.
Publication number is: the application for a patent for invention publication description of CN1047978A discloses a kind of flow regulator that is used for liquid medicament input apparatus or blood transfusion apparatus, wide first cylindrical elements, second cylindrical elements and disk element of comprising, have the groove that the peripheral cross-sectional area that extends gradually changes in the bottom of first cylindrical elements, regulate fluid flow by groove.This scheme manufacturing process is comparatively simple, but does not disclose the position relation between the groove that liquid through-hole and cross-sectional area gradually change, thereby can not guarantee the path of entire mechanism constantly.
The purpose of this utility model is exactly the above-mentioned deficiency that overcomes prior art, and a kind of simple in structure, easy to operate, flow infusion flow adjuster accurately is provided.
Infusion flow adjuster of the present utility model, comprise a liquid-controlling valve and a liquid adjusting valve, liquid-controlling valve has a tube for transfusion joint, liquid adjusting valve has a tube for transfusion joint, it between liquid adjusting valve and liquid-controlling valve flow control device, described flow control device comprises that a descending annular groove that gradually changes in cross section and can be along the counterrotating matching trim of this annular groove, described tube for transfusion joint communicates with annular groove, described tube for transfusion joint communicates with opening on the sealing surface, when matching trim rotated relatively along this annular groove, opening was positioned on the groove all the time.
Compare with existing fluid-delivery valve actuator, this utility model is simple in structure, and is easy to operate, and flow is accurate.
Describe this utility model in detail with embodiment with reference to the accompanying drawings.
Description of drawings
Fig. 1 is the user mode sketch map of infusion regulator of the present utility model;
Fig. 2 is the cutaway view of this utility model infusion regulator;
Fig. 3 is the outside drawing of this utility model infusion regulator;
Fig. 4 is the sketch map of the annular groove in Fig. 2 infusion regulator.
Fig. 5 is the cutaway view of the infusion regulator of another program;
Fig. 6 is the sketch map of the annular groove in Fig. 5 infusion regulator.
Embodiment:
See also Fig. 1, Fig. 2 and Fig. 3, infusion flow adjuster comprises a liquid-controlling valve 11 and a liquid adjusting valve 13, liquid-controlling valve 11 has a tube for transfusion joint 20, liquid adjusting valve 13 has a tube for transfusion joint 14, it between liquid adjusting valve and liquid-controlling valve flow control device, described flow control device comprises that a descending annular groove that gradually changes 18 in cross section and can be along these annular groove 18 counterrotating matching trims 21, described tube for transfusion joint 20 communicates with annular groove 18, described tube for transfusion joint 14 communicates with opening 36 on the sealing surface 21, when matching trim 21 rotated relatively along this annular groove 18, opening 36 was positioned on the groove 18 all the time.
The opening 36 of described infusion flow adjuster communicates with described tube for transfusion joint 14 through a passage 15 that passes liquid adjusting valve.
The cross-sectional area of the groove 18 of described infusion flow adjuster is zero.
The tube for transfusion joint 20 of described infusion flow adjuster communicates with groove 18 at the place, maximum cross section of groove 18.
The center of circle of the groove 18 place circumference of described infusion flow adjuster is on liquid-controlling valve and the counterrotating axis of liquid adjusting valve, thereby assurance opening 36 is positioned on the groove 18 all the time.
The side of the liquid-controlling valve 11 of described infusion flow adjuster has the annular lip 16 that stretches to liquid adjusting valve 13, and the inner face of annular lip 16 defines a cavity 26, and liquid adjusting valve 13 is positioned within this cavity 26.
The side of the liquid adjusting valve 13 of described infusion flow adjuster has the lateral margin 17 that is positioned at cavity 26, and the inner face of described lateral margin 17 lower ends has the clamping device 25 that remains on described flange 16 in the described cavity 26 and make described sealing surface sealing.
The clamping device 25 of described infusion flow adjuster is to be the annular lip of one at described lateral margin 17 inner faces and with described lateral margin 17.
The cross section of the groove 18 of described infusion flow adjuster is a rectangle.
The annular groove 18 of described infusion flow adjuster is arranged on the liquid-controlling valve 11, and contacts with sealing surface 21.
The liquid adjusting valve of described infusion flow adjuster comprise be arranged on the sealing surface 21 and with its gasket seal 12 that rotates synchronously, described opening 36 is arranged on the sealing pad 12.
The gasket seal 12 of described infusion flow adjuster is located in the groove 33 of liquid adjusting valve 13.
The infusion flow adjuster of described infusion flow adjuster is provided with rotary stopper mechanism 31 and flow scale, this position-limit mechanism so is provided with, promptly when described flow control device and liquid-controlling valve, the relative rotation of liquid adjusting valve make opening 36 arrive the positions, maximum cross section from being positioned at the little cross-section location of groove 18, further put rotation relatively between the position-limit mechanism restriction liquid-controlling valve.
See also Fig. 5 and Fig. 6, when opening 36 is not positioned on the annular groove 18 all the time as shown in Figure 6, make liquid-controlling valve 11 relative rotation take place with liquid adjusting valve 13 for regulating flow, after rotating a certain angle, opening 36 leaves annular groove 18, and one of liquid flow path formation is closed circuit, as shown in Figure 5.
Claims (12)
1, a kind of infusion flow adjuster, it is characterized in that comprising a liquid-controlling valve (11) and a liquid adjusting valve (13), liquid-controlling valve (11) has a tube for transfusion joint (20), liquid adjusting valve (13) has a tube for transfusion joint (14), it between liquid adjusting valve and liquid-controlling valve flow control device, described flow control device comprises that a descending annular groove that gradually changes in cross section (18) and can be along the counterrotating matching trim of this annular groove (18) (21), described tube for transfusion joint (20) communicates with annular groove (18), described tube for transfusion joint (14) communicates with opening (36) on the sealing surface (21), when rotating relatively, opening (36) is positioned on the groove (18) matching trim (21) all the time along this annular groove (18).
2, infusion flow adjuster according to claim 1 is characterized in that this opening (36) communicates with described tube for transfusion joint (14) through a passage (15) that passes liquid adjusting valve.
3, infusion flow adjuster according to claim 1 is characterized in that, the cross-sectional area of described groove (18) is zero.
4, infusion flow adjuster according to claim 1 is characterized in that described tube for transfusion joint (20) communicates with groove (18) at the place, maximum cross section of groove (18).
6, infusion flow adjuster according to claim 1, the center of circle that it is characterized in that described groove (18) place circumference is on liquid-controlling valve and the counterrotating axis of liquid adjusting valve.
7, infusion flow adjuster according to claim 1, it is characterized in that, the side of described liquid-controlling valve (11) has the annular lip (16) that stretches to liquid adjusting valve (13), and the inner face of annular lip (16) defines a cavity (26), and liquid adjusting valve (13) is positioned within this cavity (26).
8, infusion flow adjuster according to claim 7 is characterized in that the side of described liquid adjusting valve (13) has groove (17), and described groove (17) is formed a clamping device jointly with described flange (16).
9, infusion flow adjuster according to claim 1, the cross section that it is characterized in that described groove (18) is a rectangle.
10,, it is characterized in that described annular groove (18) is arranged on the liquid-controlling valve (11), and contact with sealing surface (21) according to the described infusion flow adjuster of one of claim 1-9.
11, according to the described infusion flow adjuster of one of claim 1-9, it is characterized in that described liquid adjusting valve comprise be arranged on that sealing surface (21) is gone up and with its gasket seal (12) that rotates synchronously, described opening (36) is arranged on the sealing pad (12).
12, infusion flow adjuster according to claim 11 is characterized in that described gasket seal (12) is located in the groove (33) of liquid adjusting valve (13).
13, infusion flow adjuster according to claim 1, it is characterized in that this infusion flow adjuster is provided with rotary stopper mechanism (31) and flow scale, this position-limit mechanism so is provided with, promptly when described flow control device and liquid-controlling valve, the relative rotation of liquid adjusting valve make opening (36) arrive the position, maximum cross section from being positioned at the little cross-section location of groove (18), further put rotation relatively between the position-limit mechanism restriction liquid-controlling valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02249245 CN2579439Y (en) | 2002-09-23 | 2002-09-23 | Flow regulator for infusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02249245 CN2579439Y (en) | 2002-09-23 | 2002-09-23 | Flow regulator for infusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2579439Y true CN2579439Y (en) | 2003-10-15 |
Family
ID=33719710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02249245 Expired - Lifetime CN2579439Y (en) | 2002-09-23 | 2002-09-23 | Flow regulator for infusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2579439Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435710C (en) * | 2004-01-07 | 2008-11-26 | 胡佛公司 | Adjustable flow rate valve for a cleaning apparatus |
| CN101905046A (en) * | 2010-08-30 | 2010-12-08 | 威海威高医用材料有限公司 | Micro-dose flow regulator |
| CN103933643A (en) * | 2014-04-29 | 2014-07-23 | 河南莲花医疗用品有限公司 | Infusion device flow fine-adjustment device |
| CN104740724A (en) * | 2013-12-27 | 2015-07-01 | 苏州和林精密科技有限公司 | Medical panel type precision flow regulator |
| CN108853691A (en) * | 2018-05-15 | 2018-11-23 | 因诺唯特（武汉）科技有限公司 | A kind of central venous catheter |
-
2002
- 2002-09-23 CN CN 02249245 patent/CN2579439Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435710C (en) * | 2004-01-07 | 2008-11-26 | 胡佛公司 | Adjustable flow rate valve for a cleaning apparatus |
| US7624473B2 (en) | 2004-01-07 | 2009-12-01 | The Hoover Company | Adjustable flow rate valve for a cleaning apparatus |
| CN101297746B (en) * | 2004-01-07 | 2010-12-01 | 胡佛公司 | Adjustable flow rate valve for a cleaning apparatus |
| CN101905046A (en) * | 2010-08-30 | 2010-12-08 | 威海威高医用材料有限公司 | Micro-dose flow regulator |
| CN101905046B (en) * | 2010-08-30 | 2012-07-04 | 威海威高医用材料有限公司 | Micro-dose flow regulator |
| CN104740724A (en) * | 2013-12-27 | 2015-07-01 | 苏州和林精密科技有限公司 | Medical panel type precision flow regulator |
| CN103933643A (en) * | 2014-04-29 | 2014-07-23 | 河南莲花医疗用品有限公司 | Infusion device flow fine-adjustment device |
| CN108853691A (en) * | 2018-05-15 | 2018-11-23 | 因诺唯特（武汉）科技有限公司 | A kind of central venous catheter |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120923 Granted publication date: 20031015 |