CN202497565U - Micro-infusion multi-flow control device and disposable infusion pump - Google Patents
Micro-infusion multi-flow control device and disposable infusion pump Download PDFInfo
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- CN202497565U CN202497565U CN2012201182107U CN201220118210U CN202497565U CN 202497565 U CN202497565 U CN 202497565U CN 2012201182107 U CN2012201182107 U CN 2012201182107U CN 201220118210 U CN201220118210 U CN 201220118210U CN 202497565 U CN202497565 U CN 202497565U
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Abstract
The utility model discloses a micro-infusion multi-flow control device which comprises a base, a flow control part, a spring and a fixing part. The base is provided with a piston cavity, a plurality of liquid outlets which are annularly distributed are disposed at a sealed end of the piston cavity, the flow control part is provided with at least one flow channel which is through from the front to the back, a piston head is arranged at the front end of the flow control part and mounted in the piston cavity of the base, an operating handle is arranged at the rear end of the flow control part, the flow channels are positioned correspondingly so that the flow channels can be in butt joint with the liquid outlets one by one when the flow control part rotates, the fixing part is disposed at an opening end of the piston cavity and provided with a rotational positioning structure matched with the flow control part, the spring is sleeved on the flow control part, one end of the spring is supported on the piston head of the flow control part, and the other end of the spring is supported on the fixing part. The control device can control flow of a disposable infusion pump in a multi-gear manner, and accordingly, clinical use requirements can be met effectively. The utility model further discloses the disposable infusion pump provided with the control device.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly the micro-infusion multithread amount control device of disposable infusion pump.This utility model also relates to the disposable infusion pump that is provided with said control device.
Background technology
Along with the development of clinical treatment technology and the raising of pharmaceutical technology, increasing intravenous pharmacy (like anesthetics, analgesic etc.) need be in art or postoperative continue infusion.
At present; The disposable infusion pump has been widely used in patient's continuous injection of (like vein, subcutaneous) in clinical micro-feeding treatment, and the back analgesia that also is widely used in performing the operation, chronic pain treatment, malignant tumor analgesia and other need trace to continue the treatment of infusion medicinal liquid.
The disposable infusion pump is a kind of by infusion power; Control through current-limiting apparatus; With the micro-infusion apparatus of certain speed, trace, lasting, even injectable drug, its infusion power form mainly contains mechanical elastic and drives two kinds with electricity, and for example the mechanical elastic with reservoir is power or the like.
With respect to traditional electronics syringe pump or target control pump, advantage such as that the disposable infusion pump has is simple in structure, easy operating can effectively reduce acquisition cost and management cost, is adapted at hospitals at different levels and uses on a large scale.
Because the flow of disposable infusion pump is less, belongs to micro-rank, flow-control is difficulty relatively, and therefore existing disposable infusion pump does not mostly possess flow regulating function, or only has simple flow translation function, can not satisfy clinical instructions for use well.
Therefore, how the flow to the disposable infusion pump carries out many grades of controls, is the present technical issues that need to address of those skilled in the art.
The utility model content
First purpose of this utility model provides a kind of micro-infusion multithread amount control device.This control device can carry out many grades of controls to the flow of disposable infusion pump, thereby satisfies clinical instructions for use well.
Second purpose of this utility model provides a kind of disposable infusion pump that is provided with said control device.
In order to realize above-mentioned first purpose, this utility model provides a kind of micro-infusion multithread amount control device, comprises base, Flow Control part, spring and fixture, and said base is provided with plunger shaft, and the blind end of said plunger shaft is provided with the liquid outlet of a plurality of annular spread; Said Flow Control part is provided with the runner that at least one front and back connect, and its front end has piston head and the plunger shaft of the said base of packing into, and its rear end is an operating grip; The position that can dock one by one with each said liquid outlet when said runner is in the rotation of said Flow Control part; Said fixture is located at the opening end of said plunger shaft, and is provided with the rotary positioning structure that matches with said Flow Control part; Said spring housing is loaded on said Flow Control part, and the one of which end is supported in the piston head of said Flow Control part, and the other end is supported in said fixture.
Preferably, be provided with first sealing ring in the seal groove on the said piston head outer circumference surface, be respectively equipped with second sealing ring on the inner face of each said liquid outlet.
Preferably, said runner is positioned at the eccentric position of said Flow Control part on cross section, and its eccentric throw equates with the annular radii of said liquid outlet.
Preferably, said Flow Control part has the inner chamber of hollow, and its inner surface is provided with the pipeline that forms said runner, and with said pipeline be integral structure.
Preferably, said base is provided with from outward extending drain pipe of each said liquid outlet and the cavity that holds said drain pipe, and the outer end of said cavity is an opening end.
Preferably, the middle part of said fixture is provided with the through hole that holds said Flow Control part, and said rotary positioning structure is the groove position that is positioned on the said through-hole wall, and the outer circumference surface of said Flow Control part is provided with and the corresponding spacing preiection in said groove position.
Preferably, said spacing preiection is positioned at the middle part of said Flow Control part length direction substantially.
Preferably, the inwall of said plunger shaft opening end is provided with annular protrusion, and said fixture is fastened in said annular protrusion through the annular slot on its outer circumference surface.
Preferably, the quantity of said runner is the 1-4 bar, and the quantity of said liquid outlet is 2-8.
For realizing above-mentioned second purpose; This utility model provides a kind of disposable infusion pump, comprises infusion pump and infusion tube, and said infusion tube is provided with volume control device; Said volume control device is above-mentioned each described micro-infusion multithread amount control device; Said infusion tube comprises first infusion tube and second infusion tube, and the quantity of said first infusion tube is corresponding one by one with the quantity of said runner, and connects with the input of said runner; Each said liquid outlet connects the flowtube of different size respectively, and said flowtube comes together in second infusion tube through joint.
The base of the micro-infusion multithread amount control device that this utility model provided is provided with a plurality of liquid outlets that distribute ringwise, and the Flow Control part can rotate after pull-up, can reset after unclamping and limits its rotation through rotary positioning structure; Through changing the position of Flow Control part; Its runner is communicated with different liquid outlets, each liquid outlet is connected the different flowtube of specification respectively, final exportable different flow; Can realize many grades of controls, thereby satisfy clinical instructions for use better flow.
The disposable infusion pump that this utility model provided is provided with above-mentioned micro-infusion multithread amount control device; Because above-mentioned micro-infusion multithread amount control device has above-mentioned technique effect, the disposable infusion pump that is provided with this trace infusion multithread amount control device also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 provides the structural representation of first kind of specific embodiment of micro-infusion multithread amount control device for this utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B of Fig. 1 is to view;
Fig. 4 provides the structural representation of second kind of specific embodiment of micro-infusion multithread amount control device for this utility model;
Fig. 5 is a kind of concrete distribution form of pipeline in second specific embodiment;
Fig. 6 is the another kind of concrete distribution form of pipeline in second specific embodiment.
Among the figure:
10. base 11. plunger shaft 12. liquid outlets 13. drain pipes 14. cavitys 20. Flow Control parts 21. pipelines 22. piston heads 23. first sealing rings 24. second sealing rings 25. spacing preiections 30. springs 40. fixtures 50. flow-stopping clips 60. flowtube 70. first infusion tube
The specific embodiment
The core of this utility model provides a kind of micro-infusion multithread amount control device.This control device can carry out many grades of controls to the flow of disposable infusion pump.
Another core of this utility model provides a kind of disposable infusion pump that is provided with said control device.
In order to make those skilled in the art person understand this utility model scheme better, this utility model is done further to specify below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 1 provides the structural representation of a kind of specific embodiment of micro-infusion multithread amount control device for this utility model; Fig. 2 is that the A of Fig. 1 is to view; Fig. 3 is that the B of Fig. 1 is to view.
In a kind of specific embodiment, the micro-infusion multithread amount control device that this utility model provides mainly is made up of parts such as base 10, Flow Control part 20, spring 30 and fixtures 40.
Flow Control part 20 has the inner chamber of hollow; Its inner surface is provided with pipeline 21; The runner that connects before and after this pipeline 21 forms, and with Flow Control part 20 be integral structure, pipeline 21 is positioned at the eccentric position of Flow Control part 20 on cross section; Its eccentric throw equates that with the annular radii of liquid outlet 12 pipeline 21 can dock with each liquid outlet 12 one by one when 20 rotations of Flow Control part.
Flow Control part 20 front ends have piston head 22 and the plunger shaft 11 of the base 10 of packing into, are provided with first sealing ring 23 in the seal groove on piston head 22 outer circumference surfaces, reflux to prevent medicinal liquid; The rear end of Flow Control part 20 is an operating grip, and for ease of pull-up Flow Control part 20, handle rear end is diameter and becomes big taper gradually, can be convenient to like this grip and the application of force.
Be respectively equipped with second sealing ring 24 on the inner face of each liquid outlet 12; Its effect guarantees the sealing property that pipeline 21 docks with liquid outlet 12; The exit of pipeline 21 is provided with an annular boss, and under the effect of spring force, this boss and corresponding second sealing ring 24 compress sealing.
The inwall of plunger shaft 11 opening ends is provided with annular protrusion; Fixture 40 is fastened in annular protrusion through the annular slot on its outer circumference surface; The middle part of fixture 40 is provided with the through hole of carrying current control 20; The inwall of its through hole is provided with the groove position, and the outer circumference surface of Flow Control part 20 is provided with and the corresponding spacing preiection 25 in groove position, and both shapes match.
When the spacing preiection 25 of Flow Control part 20 snaps in the different groove position of fixture 40; Pipeline 21 can connect with different liquid outlets 12; The inboard of spacing preiection 25 takes the form of inclined plane, and under its guiding, spacing preiection 25 can snap in the groove position of fixture 40 more easily.
In the longitudinal direction, spacing preiection 25 is positioned at the centre position of Flow Control part 20 substantially, can guarantee when Flow Control part 20 is pulled up to the appropriate location rotatable like this.According to the difference of use needs, the position of spacing preiection 25 also can suitably move forward or after move.
Above-mentioned groove position and spacing preiection 25 are triangular in shape on cross section, can effectively prevent 20 rotations of Flow Control part like this, guarantee the sealing that pipeline 21 docks with liquid outlet 12.But groove position and spacing preiection 25 can also adopt other shapes, for example rectangle, trapezoidal or the like.
In addition, the quantity of spacing preiection 25 can be consistent with the quantity of groove position, also a spacing preiection 25 can only be set, and matches through a spacing preiection 25 and different groove positions and carries out spacingly, can realize this utility model purpose equally.
Flow scale can be printed in the surface of fixture 40, with the liquid outlet 12 corresponding one by one (like the A among Fig. 2, B, C, four flow scales of D) on the base 10, in the time of need regulating flow; Earlier flow-stopping clip 50 is closed; Pull-up Flow Control part 20 turns to corresponding groove position with Flow Control part 20 then and puts down, under the elastic force effect of spring 30; The boss in pipeline 21 exits just is pressed on the corresponding liquid outlet 12; And, open flow folder 50 at last through 24 sealings of second sealing ring, just easily realized the gear shift operation of flow.
The base 10 of above-mentioned micro-infusion multithread amount control device is provided with a plurality of liquid outlets 12 that distribute ringwise, and Flow Control part 20 can rotate after pull-up, can fix through rotary positioning structure after unclamping; Through changing the position of Flow Control part 20; Its pipeline 21 is communicated with different liquid outlets 12, each liquid outlet 12 is connected the different flowtube of specification 60 respectively, final exportable different flow; Can realize many grades of controls, thereby satisfy clinical instructions for use better flow.In addition, also have advantages such as compact conformation, simple to operate, dependable performance.
Certainly, the quantity of liquid outlet 12 is not limited to four, because the radial dimension of base 10 can strengthen, so the quantity of liquid outlet 12 also can increase, and can realize the adjusting of many grades of flows.Generally speaking, the controllable number of liquid outlet 12 is built in 2-8.
Please refer to Fig. 4, Fig. 4 provides the structural representation of the another kind of specific embodiment of micro-infusion multithread amount control device for this utility model.
As shown in the figure; In the another kind of specific embodiment, be provided with two pipelines 21 in the inner chamber of Flow Control part 20, form the runner that two front and back connect by pipeline 21; When 20 rotations of Flow Control part; Two pipelines 21 can dock with two liquid outlets 12 simultaneously, and all the other structures and first kind of specific embodiment are basic identical, just no longer are repeated in this description.
Adopt after the said structure, at same position of rotation, can obtain two kinds of different flows, first kind has medicinal liquid to flow through for runner wherein, and second kind is that two runners have medicinal liquid to flow through simultaneously, compares with a runner, and its flow form is more various.If adopt runner distribution form shown in Figure 5, then can obtain six kinds of different flows altogether; If adopt runner distribution form shown in Figure 6, then can obtain eight kinds of different flows altogether.
Certainly, the quantity of pipeline 21 is not limited to two, according to the needs of flow combination, can further increase, and the flow number that specifically can obtain can be confirmed according to permutation and combination method.
Above-mentioned micro-infusion multithread amount control device only is two kinds of preferred versions of this utility model, specifically is not limited thereto, and can make pointed adjustment according to actual needs on this basis, thereby obtain different embodiment.For example, the position of said groove position and spacing preiection 25 is changed each other, and perhaps said fixture 40 matches through other rotary positioning structures with Flow Control part 20, or the like.Because mode in the cards is more, just illustrate no longer one by one here.
Except above-mentioned micro-infusion multithread amount control device, this utility model also provides a kind of disposable infusion pump, comprises infusion pump and infusion tube; Said infusion tube is provided with volume control device; Said volume control device is a micro-infusion multithread amount control device mentioned above, and said infusion tube comprises first infusion tube 70 and the second infusion tube (not shown), and the input of said pipeline 21 and first infusion tube 70 connect; The drain pipe 13 of each said liquid outlet 12 connects the flowtube 60 of different size respectively; Said flowtube 60 can come together in second infusion tube that end has syringe needle through joint, and all the other structures please refer to prior art, and this paper repeats no more.
More than micro-infusion multithread amount control device and disposable infusion pump that this utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of this utility model are set forth, the explanation of above embodiment just is used to help to understand the core concept of this utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from this utility model principle, can also carry out some improvement and modification to this utility model, these improvement and modification also fall in the protection domain of this utility model claim.
Claims (10)
1. a micro-infusion multithread amount control device is characterized in that, comprise base, Flow Control part, spring and fixture, said base is provided with plunger shaft, and the blind end of said plunger shaft is provided with the liquid outlet of a plurality of annular spread; Said Flow Control part is provided with the runner that at least one front and back connect, and its front end has piston head and the plunger shaft of the said base of packing into, and its rear end is an operating grip; The position that can dock one by one with each said liquid outlet when said runner is in the rotation of said Flow Control part; Said fixture is located at the opening end of said plunger shaft, and is provided with the rotary positioning structure that matches with said Flow Control part; Said spring housing is loaded on said Flow Control part, and the one of which end is supported in the piston head of said Flow Control part, and the other end is supported in said fixture.
2. micro-infusion multithread amount control device according to claim 1 is characterized in that, is provided with first sealing ring in the seal groove on the said piston head outer circumference surface, is respectively equipped with second sealing ring on the inner face of each said liquid outlet.
3. micro-infusion multithread amount control device according to claim 2 is characterized in that said runner is positioned at the eccentric position of said Flow Control part on cross section, and its eccentric throw equates with the annular radii of said liquid outlet.
4. micro-infusion multithread amount control device according to claim 3 is characterized in that said Flow Control part has the inner chamber of hollow, and its inner surface is provided with the pipeline that forms said runner, and with said pipeline be integral structure.
5. micro-infusion multithread amount control device according to claim 2 is characterized in that, said base is provided with from outward extending drain pipe of each said liquid outlet and the cavity that holds said drain pipe, and the outer end of said cavity is an opening end.
6. according to each described micro-infusion multithread amount control device of claim 1 to 5; It is characterized in that; The middle part of said fixture is provided with the through hole that holds said Flow Control part; Said rotary positioning structure is the groove position that is positioned on the said through-hole wall, and the outer circumference surface of said Flow Control part is provided with and the corresponding spacing preiection in said groove position.
7. micro-infusion multithread amount control device according to claim 6 is characterized in that said spacing preiection is positioned at the middle part of said Flow Control part length direction substantially.
8. micro-infusion multithread amount control device according to claim 7 is characterized in that the inwall of said plunger shaft opening end is provided with annular protrusion, and said fixture is fastened in said annular protrusion through the annular slot on its outer circumference surface.
9. according to each described micro-infusion multithread amount control device of claim 1 to 5, it is characterized in that the quantity of said runner is the 1-4 bar, the quantity of said liquid outlet is 2-8.
10. disposable infusion pump; Comprise infusion pump and infusion tube, said infusion tube is provided with volume control device, it is characterized in that; Said volume control device is aforesaid right requirement 1 to 9 each described micro-infusion multithread amount control device; Said infusion tube comprises first infusion tube and second infusion tube, and the quantity of said first infusion tube is corresponding one by one with the quantity of said runner, and connects with the input of said runner; Each said liquid outlet connects the flowtube of different size respectively, and said flowtube comes together in second infusion tube through joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201182107U CN202497565U (en) | 2012-03-26 | 2012-03-26 | Micro-infusion multi-flow control device and disposable infusion pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201182107U CN202497565U (en) | 2012-03-26 | 2012-03-26 | Micro-infusion multi-flow control device and disposable infusion pump |
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| Publication Number | Publication Date |
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| CN202497565U true CN202497565U (en) | 2012-10-24 |
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| CN2012201182107U Expired - Lifetime CN202497565U (en) | 2012-03-26 | 2012-03-26 | Micro-infusion multi-flow control device and disposable infusion pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083757A (en) * | 2013-02-05 | 2013-05-08 | 北京科联升华应用技术研究所 | Multi-flow adjustable trace infusion device |
| CN103239765A (en) * | 2013-04-26 | 2013-08-14 | 德清县新德意医疗器械有限公司 | Disposable special enema tube for infants |
| CN103357087A (en) * | 2012-03-26 | 2013-10-23 | 北京科联升华应用技术研究所 | Micro-infusion multi-flow control device and disposable infusion pump |
-
2012
- 2012-03-26 CN CN2012201182107U patent/CN202497565U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357087A (en) * | 2012-03-26 | 2013-10-23 | 北京科联升华应用技术研究所 | Micro-infusion multi-flow control device and disposable infusion pump |
| CN103083757A (en) * | 2013-02-05 | 2013-05-08 | 北京科联升华应用技术研究所 | Multi-flow adjustable trace infusion device |
| CN103239765A (en) * | 2013-04-26 | 2013-08-14 | 德清县新德意医疗器械有限公司 | Disposable special enema tube for infants |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 M, Badachu high tech Park Innovation Park, Beijing, Shijingshan District Patentee after: Beijing union Shenghua Medical Technology Co., Ltd. Address before: 100041 M, Badachu high tech Park Innovation Park, Beijing, Shijingshan District Patentee before: Beijing KSH Technology Institute |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |