CN101766851B - Transfusion system - Google Patents
Transfusion system Download PDFInfo
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- CN101766851B CN101766851B CN200910217170A CN200910217170A CN101766851B CN 101766851 B CN101766851 B CN 101766851B CN 200910217170 A CN200910217170 A CN 200910217170A CN 200910217170 A CN200910217170 A CN 200910217170A CN 101766851 B CN101766851 B CN 101766851B
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- transfusion
- tube
- infusion pump
- stopping device
- solution stopping
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- 238000001802 infusion Methods 0.000 claims description 94
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The invention provides a transfusion system, which comprises a transfusion pump and a transfusion tube, and further comprises a liquor stopping device positioned downstream the transfusion pump, wherein the liquor stopping device provides prestress so as to be in a normally closed state of blocking the transfusion of the transfusion tube; and only when the transfusion tube normally works, a pressure provided by the transfusion tube is counterbalanced with the prestress, so that the liquor stopping device is in an open state of making the transfusion tube at work. The transfusion system can solve the problem of the uncontrollable liquor flow velocity of the transfusion pump in the prior art.
Description
Technical field
The present invention relates to the medical science and technology field, particularly, relate to a kind of transfusion system.
Background technology
Transfusion is one of important treatment means of clinical medicine, infusion pump be a kind of be the automatic infusion device of consumptive material with the transfusion device, through the power section of infusion pump---the transfusion pump housing, periodically push the intravital flow velocity of infusion pipeline control medicinal liquid input patient.Compare with traditional infusion mode, infusion pump have precision height, flow rates wide, characteristics such as big positive pressure can be provided.
Because the transfusion pump housing is a mechanical moving element; Certainly exist wearing and tearing, problem such as aging in actual use; In addition since batch difference of transfusion device, ambient temperature to the problems such as hardness influence of transfusion device; Make infusion pump have flow velocity potential safety hazard out of control, the malpractice that causes thus happens occasionally.In order to address this problem, each producer mainly adopts following two kinds of solutions at present:
(1) employing is dripped number sensor transfusion device and is dripped the drop drippage situation in the kettle, and passes through the control system formation feedback of infusion pump, thereby in time finds the situation that flow velocity is out of control, to solve the flow velocity security risk of bringing out of control.Drip the number pick off and generally adopt infrared technique, its emission element places and drips kettle one side, and receiving-member places and drips the kettle opposite side, when droplets fall, has judged whether the drop drippage through receiving the strong and weak variation of infrared ray.But; In actual use; Owing to the water droplet that evokes when the diversity of the variation of ambient light, personnel operation, droplets fall, drip in the kettle atomization of liquid and form factor such as little water droplet and all can cause flase drop dripping a kettle inner surface; Thereby the reliability of number sensor data is dripped in influence, and then also can't solve medicinal liquid flow velocity problem out of control preferably;
(2) outfan at the transfusion pump housing is provided with pressure-detecting device and solution stopping device, and wherein, pressure-detecting device is used for detecting the pressure of the infusion pipeline that is connected to patient's side, is used for when this pipe blocking, reporting to the police; The solution stopping device is used for when the infusion pump door is opened (when infusion pump quits work), and the blocking-up infusion pipeline gets in patient's body under runaway condition to prevent medicinal liquid.But, open but under the situation of infusion pump insufficient pressure when infusion pump non-normal working (perhaps), the solution stopping device can't be blocked infusion pipeline, thereby also possibly cause medicinal liquid under runaway condition, to get in patient's body at infusion pump Men Wei.
In sum, the medicinal liquid security risk out of control for infusion pump exists does not provide solution preferably at present as yet.
Summary of the invention
The main purpose of the embodiment of the invention is to provide a kind of transfusion system, to solve the medicinal liquid problem out of control that infusion pump of the prior art exists.
The embodiment of the invention provides a kind of transfusion system; This transfusion system comprises infusion pump and tube for transfusion; Described transfusion system also comprises: the solution stopping device, be positioned at the downstream of said infusion pump, and this solution stopping device provides a precompression; Make described solution stopping device be in the normally off of the said tube for transfusion transfusion of blocking-up; Only when described infusion pump operate as normal, the pressure that is provided by this infusion pump overcomes described precompression, the open mode that makes described solution stopping device be in to make described tube for transfusion transfusion.
By means of technique scheme; Through the solution stopping device one precompression is provided, makes described solution stopping device be in the normally off of the said tube for transfusion transfusion of blocking-up, only when the infusion pump operate as normal; The pressure that is provided by this infusion pump overcomes this precompression; Could make the solution stopping device open, and then tube for transfusion could infuse, overcome the medicinal liquid flow velocity problem out of control that infusion pump of the prior art exists.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structure chart according to the solution stopping device 12 of the embodiment of the invention;
Fig. 2 is the preferred structure figure according to the solution stopping device 12 of the embodiment of the invention;
Fig. 3 is the detailed structure view according to the solution stopping device 12 of the embodiment of the invention;
Fig. 4 is the detailed structure view according to the transfusion system of the embodiment of the invention.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Because infusion pump is when pump housing insufficient pressure, can't normally control the flow velocity of medicinal liquid in tube for transfusion, thereby medicinal liquid can get into fast in patient's body, patient's life security has been caused very big hidden danger.Based on this, the embodiment of the invention provides a kind of transfusion system, to solve present medicinal liquid flow velocity problem out of control preferably.Below in conjunction with accompanying drawing the present invention is elaborated.
The embodiment of the invention provides a kind of transfusion system; This transfusion system comprises: infusion pump, tube for transfusion and solution stopping device, and the solution stopping device is positioned at the downstream of infusion pump, and this solution stopping device provides a precompression; Make the solution stopping device be in the normally off of blocking-up tube for transfusion transfusion; Only when the infusion pump operate as normal, the pressure that is provided by this infusion pump overcomes precompression, the open mode that makes the solution stopping device be in to make the tube for transfusion transfusion.
Can know by above description,, make the solution stopping device be in the normally off of blocking-up tube for transfusion transfusion through the precompression of solution stopping device; Have only when the infusion pump operate as normal, the pressure that the pump housing provides just can overcome precompression, and solution stopping this moment device is opened; Make and that is to say the tube for transfusion transfusion, when the infusion pump non-normal working; The pressure that the pump housing provides can not overcome precompression; Thereby the solution stopping device still is in the normally off of blocking-up tube for transfusion transfusion, therefore, can overcome medicinal liquid flow velocity of the prior art problem out of control through this solution stopping device.
Describe above-mentioned solution stopping device in detail below in conjunction with accompanying drawing.
Fig. 1 is the structure chart according to the solution stopping device of the embodiment of the invention, and is as shown in Figure 1, and solution stopping device 12 comprises:
One flexible member 122, this flexible member acts on spool 120 with precompression, makes spool 120 and valve seat 122 be in the normally off of blocking-up tube for transfusion transfusion.
Preferably, as shown in Figure 2, this solution stopping device 12 also comprises: flexible member bearing 123, and this flexible member bearing 123 is replaced with spool 120 through flexible member 122 mutually; This flexible member can be elements such as spring, button spring.This flexible member bearing 123 can be fixedly connected with valve seat 121, with support elastic element 122.
In the practical implementation process, spool 120 can also comprise a groove, and this groove floor can be connected with an end of flexible member 122, and the other end of flexible member 122 can be connected with flexible member bearing 123.Certainly, flexible member can also be connected with other part of spool 120, the invention is not restricted to this.
Detailed structure below in conjunction with solution stopping device 12 shown in Figure 3 further describes solution stopping device 12 and operation principle thereof.
As shown in Figure 3, this solution stopping device 12 comprises: spool 121, flexible member 122, flexible member bearing 123, fixing head 124, valve seat 125, tube for transfusion 13 are sheathed between spool 121 and the valve seat 125, and transfusion tube wall 130 has a contact surface with spool 121, wherein:
This spool 121 has a protuberance with transfusion tube wall contact surface, and this protuberance is replaced with valve seat 125 under precompression (elastic force) effect of flexible member 122 mutually, makes the solution stopping device be in the normally off of blocking-up tube for transfusion 13 transfusions; This spool 121 also has a compression face along the extension of tube for transfusion 13 axial directions (being the contact surface of above-mentioned transfusion tube wall 130 and spool 121), and this compression face receives the pressure of tube wall in the tube for transfusion infusion process.Receive the pressure from the tube for transfusion tube wall through this compression face, when the infusion pump operate as normal, the pressure of the pump housing makes the pressure of tube for transfusion tube wall increase, and then overcomes the precompression of flexible member 122, makes protuberance leave mutually with valve seat, and at this moment, tube for transfusion begins transfusion.
Fixing head 124 can be established a through hole, makes spool 121 to be located in this through hole by slip cap.
One end of flexible member 122 is connected with spool 121, and the other end is connected with flexible member bearing 123, is used for to spool 121 elastic force being provided, to replace valve seat 125 through protuberance, with the transfusion of blocking-up tube for transfusion;
Flexible member bearing 123 can be fixedly connected with fixing head 124, also can be fixedly connected with valve seat 125, is used for the support elastic element;
Sheathed tube for transfusion 13 between valve seat 125 and valve core 121, like this, because spool 121 under the elastic force effect of flexible member 122, is replaced valve seat 125 through protuberance, so that the solution stopping device is in the normally off of blocking-up tube for transfusion 13 transfusions.The medicinal liquid that the predetermined force of flexible member 122 can equate or be slightly less than the transfusion pump housing 10 infusion pump delivery outlet when operate as normal acts on the pressure of compression face.
Can find out by above description; Under the effect of flexible member 122 precompressions (elastic force), replace valve seat 125 through spool 121, make the transfusion pump housing 10 when non-normal working, the medicinal liquid of infusion pump delivery outlet acts on the pressure of spool 121 compression faces less than precompression; Thereby can't overcome this precompression; Make tube for transfusion keep blocking state, stoped flowing of medicinal liquid, avoided infusion pump of the prior art medicinal liquid flow velocity problem out of control when non-normal working.Have only when the transfusion pump housing 10 during in operate as normal, the pressure through the pump housing, the pressure that makes the medicinal liquid of infusion pump delivery outlet act on spool 121 compression faces can overcome this precompression, thereby make the solution stopping device open, and at this moment, tube for transfusion begins transfusion.
The medicinal liquid of above-mentioned infusion pump delivery outlet acts on the force value of spool 121 compression faces and can obtain through following mode: the pressure values P of pump housing delivery outlet when obtaining the infusion pump operate as normal; And obtain the area S of these spool 121 compression faces; P and S are carried out product calculation, and the medicinal liquid that obtains the infusion pump delivery outlet acts on the force value of spool 121 compression faces.
After the medicinal liquid of infusion pump delivery outlet acts on the force value of spool 121 compression faces when obtaining above-mentioned infusion pump operate as normal; The force value that the elastic force that acts on spool 121 according to flexible member 122 should act on spool 121 compression faces with the medicinal liquid of infusion pump delivery outlet offsets, and regulates the elastic force of flexible member.The flexible member that regulates can fix through flexible member bearing 123 and fixing head 124.
Preferably, as shown in Figure 4, transfusion system can also comprise infusion pump delivery outlet pressure detector 14, and this infusion pump delivery outlet pressure detector 14 is used to detect the pressure of infusion pump delivery outlet between described solution stopping device and said infusion pump delivery outlet.Force value through 14 detections of infusion pump delivery outlet pressure detector; Whether the work that can judge infusion pump 10 is normal; Thereby can be so that medical personnel in time adjust infusion pump, avoiding the generation of malpractice, and also avoided medicinal liquid flow velocity problem out of control further.For example, when the infusion pump operate as normal, the pressure limit value of infusion pump delivery outlet is between the 0.1MPa-0.12MPa; If when the detected force value of infusion pump delivery outlet pressure detector is lower than 0.1MPa, represent that then the pressure of infusion pump 10 is not enough, infusion pump is in abnormal operating state; Medical personnel are according to the detected force value of this infusion pump delivery outlet pressure detector; It is undesired that the judgement infusion pump possibly worked, and just in time adjusts infusion pump, to avoid the generation of malpractice.
Preferably, as shown in Figure 5, transfusion system can also comprise tube for transfusion delivery outlet pressure detector 16, and this tube for transfusion delivery outlet pressure detector 16 is used to detect the pressure of tube for transfusion delivery outlet between solution stopping device and tube for transfusion delivery outlet.Because in practical operation; The tube for transfusion equipped at outlet port is the situation of possible cause clogging also, if cause clogging, then the pressure of tube for transfusion delivery outlet will become big; Through tube for transfusion delivery outlet pressure detector 16, can find whether the tube for transfusion delivery outlet exists congestion situations.For example; Under the normal infusion situation; The force value of tube for transfusion delivery outlet pressure detector 16 detected tube for transfusion delivery outlets is 0.02MPa-0.04Mpa, if the force value of tube for transfusion delivery outlet pressure detector 16 detected tube for transfusion delivery outlets not between 0.02MPa-0.04Mpa, shows that then obstruction possibly take place the tube for transfusion equipped at outlet port; Thereby can be so that medical personnel in time adjust tube for transfusion, to avoid the generation of malpractice.
Below based on the structure of transfusion system shown in Figure 5, describe the operation principle of this transfusion system in detail, wherein; Solution stopping device 12 has been in effective status,, is in the normally off of blocking-up tube for transfusion transfusion that is; Infusion pump delivery outlet pressure detector 14 is fixing through fixing head 124 with tube for transfusion delivery outlet pressure detector 16; Wherein, infusion pump delivery outlet pressure detector 14 detects the pressure of infusion pump equipped at outlet port, and tube for transfusion delivery outlet pressure detector 16 detects the pressure of the equipped at outlet port of tube for transfusion 19:
When infusion pump 10 was not worked, the protuberance of the spool 121 of solution stopping device 12 was replaced valve seat 125, made tube for transfusion 19 be in blocking state.After infusion pump 10 work, the pump housing pumps medicinal liquid, and the infusion pump delivery outlet raises to the pressure in the infusion pipeline between the solution stopping device; When this pressure was elevated to a certain degree, the active force to spool 121 compression faces that is caused by this pressure equaled or is slightly larger than the precompression (being the elastic force of flexible member) that spool 121 provides, and spool 121 is open; At this moment; The blocking state of infusion pipeline finishes, and medicinal liquid flows to the tube for transfusion delivery outlet, begins the patient is infused.At this moment; Can there be marked difference in the pressure value P 1 of the infusion pump delivery outlet that infusion pump delivery outlet pressure detector 14 detects in the infusion pipeline between the solution stopping device with the pressure value P 2 of the tube for transfusion equipped at outlet port of tube for transfusion delivery outlet pressure detector 16 detections; Obviously be that P1 will according to these characteristics, also can judge the risk that whether exists flow velocity out of control much larger than P2; Because when flow velocity is out of control, P1 is to equate basically with P2.
Can know by above description, can avoid medicinal liquid flow velocity problem out of control preferably through the solution stopping device.
In concrete implementation process; Can also comprise warner; This warner can be connected with infusion pump delivery outlet pressure detector; Be used for not alarming the pressure limit of the infusion pump delivery outlet when this preset range value is the infusion pump operate as normal simultaneously in force value and preset range value that infusion pump delivery outlet pressure detector detects.For example, when the infusion pump operate as normal, the pressure limit value of infusion pump delivery outlet is between the 0.1MPa-0.12MPa, and then, the preset range value just can be set to 0.1MPa-0.12MPa.When the detected force value of infusion pump delivery outlet pressure detector was not between 0.1MPa-0.12MPa, warner 106 was alarmed, and is undesired to remind this infusion pump of medical personnel to work, in time to avoid malpractice.
At present embodiment; One warner can also be provided; Be connected with tube for transfusion delivery outlet pressure detector; Be used for not alarming the pressure limit of the tube for transfusion delivery outlet when this preset range value is the infusion pump operate as normal simultaneously in force value and preset range value that tube for transfusion delivery outlet pressure detector detects.For example, when the infusion pump operate as normal, the pressure limit value of tube for transfusion delivery outlet is between the 0.02MPa-0.04MPa, and then, the preset range value just can be set to 0.02MPa-0.04MPa.When the detected force value of tube for transfusion delivery outlet pressure detector was not between 0.02MPa-0.10MPa, this warner was alarmed, and is undesired to remind this infusion pump of medical personnel to work, in time to avoid malpractice.
Two above-mentioned warners can singlely be provided with on structure is provided with, also can make up setting, the invention is not restricted to this.
Can find out by above description; Can avoid flow velocity of the prior art problem out of control preferably through the solution stopping device; Can judge in time through infusion pump delivery outlet force detector and tube for transfusion delivery outlet force detector whether infusion pump, tube for transfusion are in normal operating conditions, for avoiding the guarantee that provides of hospital's accident.
In sum; The technical scheme that the embodiment of the invention provides can be accomplished the monitoring to medicinal liquid flow velocity this infusion pump potential safety hazard out of control; Under the prerequisite that guarantees transfusion safety; The manufacture process of this infusion pump is simple, is easy to promote, for the raising of entire society's infusion techn level provides technical support.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. transfusion system, this transfusion system comprises infusion pump and tube for transfusion, it is characterized in that; Described transfusion system also comprises: the solution stopping device, be positioned at the downstream of said infusion pump, and this solution stopping device provides a precompression; Make described solution stopping device be in the normally off of the said tube for transfusion transfusion of blocking-up; Only when described infusion pump operate as normal, the pressure that is provided by this infusion pump overcomes described precompression, the open mode that makes described solution stopping device be in to make described tube for transfusion transfusion;
Wherein, described solution stopping device comprises:
Spool and valve seat, described tube for transfusion is between described spool and valve seat;
One flexible member, this flexible member acts on described spool with described precompression, makes described spool and valve seat be in the normally off of the said tube for transfusion transfusion of blocking-up.
2. transfusion system according to claim 1 is characterized in that, described solution stopping device also comprises:
One flexible member bearing, this flexible member bearing is replaced with described spool through described flexible member mutually.
3. transfusion system according to claim 2 is characterized in that, described spool also comprises:
Protuberance, this protuberance are replaced with described valve seat under the effect of said precompression mutually, make described solution stopping device be in the normally off of the said tube for transfusion transfusion of blocking-up;
Part in compression, this part in compression comprise a compression face along said tube for transfusion axial direction extension.
4. according to each described transfusion system in the claim 1 to 3, it is characterized in that described spool also comprises:
One groove, this groove floor is connected with an end of said flexible member.
5. according to each described transfusion system in the claim 1 to 3, it is characterized in that described transfusion system also comprises:
One fixing head, this fixing head offers a through hole;
Described spool slides and is arranged in the described through hole.
6. according to each described transfusion system in the claim 1 to 3, it is characterized in that described transfusion system also comprises:
Infusion pump delivery outlet pressure detector between described infusion pump and described solution stopping device, is used to detect the pressure of said infusion pump delivery outlet.
7. according to each described transfusion system in the claim 1 to 3, it is characterized in that described transfusion system also comprises:
Tube for transfusion delivery outlet pressure detector between described solution stopping device and said tube for transfusion delivery outlet, is used to detect the pressure of said tube for transfusion delivery outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217170A CN101766851B (en) | 2009-12-31 | 2009-12-31 | Transfusion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217170A CN101766851B (en) | 2009-12-31 | 2009-12-31 | Transfusion system |
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| Publication Number | Publication Date |
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| CN101766851A CN101766851A (en) | 2010-07-07 |
| CN101766851B true CN101766851B (en) | 2012-09-26 |
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| CN200910217170A Expired - Fee Related CN101766851B (en) | 2009-12-31 | 2009-12-31 | Transfusion system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410913B (en) * | 2011-07-26 | 2015-01-21 | 刘仲馨 | Blockage detection device |
| CN102512726B (en) * | 2012-01-17 | 2013-07-10 | 南京扬子医用制品有限公司 | Microinfusion pump |
| CN103120815B (en) * | 2013-02-04 | 2015-04-15 | 深圳麦科田生物医疗技术有限公司 | Infusion pump of electric control liquid stop clip |
| CN110327509A (en) * | 2019-08-01 | 2019-10-15 | 巨翊科瑞医疗技术(上海)有限公司 | It is a kind of to prevent gravity flow valve based on transfusion system |
| CN110882436B (en) * | 2019-12-17 | 2021-09-28 | 中国医学科学院北京协和医院 | Multifunctional infusion support monitoring system |
| CN114129814B (en) * | 2021-12-14 | 2023-06-23 | 北京信息科技大学 | Method for controlling infusion precision of infusion apparatus for pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4689043A (en) * | 1986-03-19 | 1987-08-25 | Imed Corporation | IV tube activator |
| CN2239266Y (en) * | 1995-12-27 | 1996-11-06 | 朱辉 | Multifunctional infusion controller |
| CN201057137Y (en) * | 2007-06-28 | 2008-05-07 | 北京谊安医疗系统股份有限公司 | Adjustable spring pressboard structure |
| CN101334326A (en) * | 2007-06-28 | 2008-12-31 | 北京谊安医疗系统股份有限公司 | Pressure detection device for perfusion tube |
-
2009
- 2009-12-31 CN CN200910217170A patent/CN101766851B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4689043A (en) * | 1986-03-19 | 1987-08-25 | Imed Corporation | IV tube activator |
| CN2239266Y (en) * | 1995-12-27 | 1996-11-06 | 朱辉 | Multifunctional infusion controller |
| CN201057137Y (en) * | 2007-06-28 | 2008-05-07 | 北京谊安医疗系统股份有限公司 | Adjustable spring pressboard structure |
| CN101334326A (en) * | 2007-06-28 | 2008-12-31 | 北京谊安医疗系统股份有限公司 | Pressure detection device for perfusion tube |
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| CN101766851A (en) | 2010-07-07 |
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