CN100425297C - Automatic controlling arrangement of transfusion system - Google Patents
Automatic controlling arrangement of transfusion system Download PDFInfo
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- CN100425297C CN100425297C CNB2005100348909A CN200510034890A CN100425297C CN 100425297 C CN100425297 C CN 100425297C CN B2005100348909 A CNB2005100348909 A CN B2005100348909A CN 200510034890 A CN200510034890 A CN 200510034890A CN 100425297 C CN100425297 C CN 100425297C
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Abstract
The present invention discloses an automatic control device for a drip transfusion apparatus, which aims to provide an automatic control device which is used for the drip transfusion apparatus, can automatically close accurately and reliably, and can be effectively sealed. The present invention comprises a physic liquor storing apparatus and a float, wherein the float is arranged in the physic liquor storing apparatus. The upper end of the physic liquor storing apparatus is fixedly connected with a liquor inlet needle (1), and a vertical bulge (3) which faces a cavity is arranged in the center of the lower end, wherein a liquor inlet (2) is arranged on the liquor inlet needle (1), and a liquor outlet (4) is arranged on the bulge (3). The float comprises a float body (5) and a seal body (8), wherein the float body (5) is a cylinder, and the seal body (8) is a soft elastic body. A vertical gap is formed between the seal body (8) and the bottom of the float body (5). The seal body (8) is matched with the vertical bulge (3). The present invention can be widely used for the medical care field.
Description
Technical field
The present invention relates to a kind of automatic controlling arrangement of transfusion system.
Background technology
At present, intravenous drip infusion is a Therapeutic Method commonly used clinically.Traditional transfusion system is to add switch and the flow that cartridge control valve is controlled transfusion on tube for transfusion, so that medicinal liquid can inject human body with stable flow rate, but and closed control valve where necessary, for example when transfusion closes to an end or when changing dressings liquid, closed control valve can prevent that air admission blood vessel and blood from refluxing and enter tube for transfusion, and above-mentioned operation to control valve is by manually finishing.Intravenous drip infusion often needs for a long time, and the definite time of finishing transfusion is difficult to determine, therefore need nurse constantly, but, patient and nursing staff often are easy to carelessness and check infusion process, also fail in time to close transfusion system to such an extent as to the medicinal liquid drop finishes, and cause air admission blood vessel and blood to reflux and enter tube for transfusion, bring hidden danger for patient's life security, this situation especially needs to pay attention to when infusing night.
For transfusion system can in time be closed when transfusion is about to finish automatically, people have invented automatic controlling arrangement of transfusion system.Chinese patent publication number CN1526455, open day be JIUYUE in 2004 8 days, the name of innovation and creation is called " droving injector controller " and discloses a kind of such control device, this control device mainly comprises medicinal liquid bin and float, its weak point is: on the one hand, the inadequately little float that just causes easily in gap between the blade of float and lug, nib and the medicinal liquid bin tilts, and can not guarantee the stable elevation of float, can not effectively seal when control device cuts out; On the other hand, enough hour of gap between the blade of float and lug, nib and the medicinal liquid bin, though can guarantee the stable elevation of float, but when transfusion, press traditional program operation, the circumferential wall of must be earlier pinching pressing liquid bin repeatedly with finger makes part air in its distortion discharge side with the introduction medicinal liquid, and this can press the blade of float and lug, nib and float be blocked can't suspend, finish close automatically the time in transfusion, also can't close automatically and seal; And the gap between the blade of float and lug, nib and the medicinal liquid bin is too small, and the deformation extent that the circumferential wall of medicinal liquid bin is pinched pressure by finger is not enough easily, so that can't introduce medicinal liquid smoothly to medicinal liquid bin intracavity; In addition, it is a hard material as can be known according to the structure of float, even on the sealing surface of float, be added with the flexible barrier material of skim such as silica type, because the sealing between float and cylindrical protrusion in fact still is the linear sealing of ring-type, its sealing effectiveness is still good inadequately, at float a little under the situation of deflection, can not self-adapting seal.
So existing product has the following disadvantages: can not accurately close automatically reliably and effectively sealing.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes on the prior art, and a kind of automatic controlling arrangement of transfusion system that can accurately close automatically reliably and effectively seal is provided.
The technical solution adopted in the present invention is: the present invention includes medicinal liquid bin, float, described float is arranged in the described medicinal liquid bin, the fixedly connected feed liquor pin in described medicinal liquid bin upper end, lower end centre are provided with the vertical projections towards intracavity, described feed liquor pin is provided with inlet, described projection is provided with liquid outlet, described float comprises buoyancy aid, seal, described buoyancy aid is a cylinder, described seal is soft elastomer, between the bottom of described seal and described buoyancy aid the axial clearance is arranged, described seal and described vertical projections are suitable.
Described buoyancy aid is a hollow vertebra tip circle cylinder, described float also comprises bottom, counterweight, the bottom of described bottom and described buoyancy aid is fixedly connected, described bottom bottom periphery has first annular lip of protruding the bottom surface, described seal and described first annular lip are suitable, and described counterweight is positioned at the inner chamber of described buoyancy aid.
Described medicinal liquid bin comprises upper-part, lower member, described upper-part adopts soft elastic material to make, described lower member adopts hard material to make, the upper and lower end of described upper-part is fixedly connected with described feed liquor pin, described lower member respectively, described upper-part bottom is provided with along several uniform first vertical fins of inner rim, the described first vertical fin is positioned at the intracavity of described medicinal liquid bin, described float is a step structure, and the described first annular lip external diameter is greater than the radial dimension of inscribed circle between each described first vertical fin.
Described lower member inwall is provided with along several uniform second vertical fins of periphery, the radial clearance that 0.2～0.3mm is arranged between the excircle of the barrel portion of described buoyancy aid and the described first vertical fin has the radial clearance of 0.2～0.3mm between the radial dimension maximum of described float and the described second vertical fin.
The centre of described seal is provided with first projection towards described liquid outlet, and described first projection is suitable with described liquid outlet.
The bottom center of described bottom is provided with the second downward projection, and described second projection is suitable with described first projection.
Described medicinal liquid bin also comprises bottom parts, filter, described bottom parts and described lower member are fixedly connected, described bottom parts bottom center is provided with liquid droping port, bottom surface and several upwards is set along the uniform vertical blade of periphery, the radial dimension of inscribed circle is greater than the radial dimension of described liquid droping port between each described vertical blade, described vertical projections is connected by the inclined-plane with described lower member, and described filter is fixedly set in described vertical vane tip.
Described float also comprises the seal fixed cover, described seal fixed cover is provided with the annular solid of second annular lip for periphery, described seal and described seal fixed cover are fixedly connected, described second annular lip is socketed on described first annular lip, and the endoporus aperture of described seal fixed cover is greater than the external diameter of described vertical projections.
The periphery of described seal is provided with the 3rd annular lip, and the inboard root that described seal fixedly is placed in described second annular lip is provided with annular groove, and described the 3rd annular lip embeds in the described annular groove.
Another kind of technical scheme of the present invention is: the present invention includes the medicinal liquid bin, float, described float is arranged in the described medicinal liquid bin, the fixedly connected feed liquor pin in described medicinal liquid bin upper end, the lower end centre is provided with the vertical projections towards intracavity, described feed liquor pin is provided with inlet, described projection is provided with liquid outlet, described float comprises buoyancy aid, seal, described buoyancy aid is a cylinder, described seal is soft elastomer, between the bottom of described seal and described buoyancy aid the axial clearance is arranged, described seal and described vertical projections are suitable.
Described buoyancy aid is a hollow vertebra tip circle cylinder, described float also comprises bottom, counterweight, the bottom of described bottom and described buoyancy aid is fixedly connected, described bottom bottom periphery has first annular lip of protruding the bottom surface, described seal and described first annular lip are suitable, and described counterweight is positioned at the inner chamber of described buoyancy aid.
Described medicinal liquid bin comprises upper-part, lower member, described upper-part adopts soft elastic material to make, described lower member adopts hard material to make, the upper and lower end of described upper-part is fixedly connected with described feed liquor pin, described lower member respectively, described upper-part bottom is provided with along several uniform first vertical fins of inner rim, the described first vertical fin is positioned at the intracavity of described medicinal liquid bin, described float is a step structure, and the described first annular lip external diameter is greater than the radial dimension of inscribed circle between each described first vertical fin.
Described float lower outer periphery is provided with several along the 3rd uniform vertical fin of periphery, the radial clearance that 0.2～0.3mm is arranged between the excircle of the barrel portion of described buoyancy aid and the described first vertical fin has the radial clearance of 0.2～0.3mm between the inwall of the described the 3rd vertical fin and described lower member.
The centre of described seal is provided with first projection towards described liquid outlet, and described first projection is suitable with described liquid outlet.
The bottom center of described floating botton lid is provided with the second downward projection, and described second projection is suitable with described first projection.
Described medicinal liquid bin also comprises bottom parts, filter, described bottom parts and described lower member are fixedly connected, described bottom parts bottom center is provided with liquid droping port, bottom surface and several upwards is set along the uniform vertical blade of periphery, the radial dimension of inscribed circle is greater than the radial dimension of described liquid droping port between each described vertical blade, described vertical projections is connected by the inclined-plane with described lower member, and described filter is fixedly set in described vertical vane tip.
Described float also comprises the seal fixed cover, described seal fixed cover is provided with the annular solid of second annular lip for periphery, described seal and described seal fixed cover are fixedly connected, described second annular lip is socketed on described first annular lip, and the endoporus aperture of described seal fixed cover is greater than the external diameter of described vertical projections.
The periphery of described seal is provided with the 3rd annular lip, and the inboard root that described seal fixedly is placed in described second annular lip is provided with annular groove, and described the 3rd annular lip embeds in the described annular groove.
The invention has the beneficial effects as follows: because upper-part of the present invention adopts soft elastic material to make, identical with the reservoir material of traditional transfusion system, can operate by the mode of operation of traditional transfusion system, the liquid process of changing in feed liquor process before beginning to infuse and the transfusion is as follows: pinch the circumferential wall of pressing described upper-part with finger earlier, make the chamber wall distortion and the aerofluxus synchronously of described upper-part, again finger is unclamped, make the chamber wall reinstatement and the synchronous feed liquor of distortion, pinch pressure repeatedly several times, action of releasing, make described medicinal liquid bin inner liquid medicine reach required liquid level, its mode of operation is consistent with the mode of operation of traditional transfusion system, and the spacing between the inwall of described upper-part and described buoyancy aid is enough to guarantee that described float is not stuck, also can guarantee to introduce smoothly medicinal liquid to described medicinal liquid bin intracavity, so the present invention is beneficial to operation;
Because seal of the present invention is soft elastomer, described float is at described medicinal liquid bin intracavity and medicinal liquid synchronization lifting, when the medicinal liquid in the medicinal liquid bottle of described inlet upper end is failed to the greatest extent, the medicinal liquid of described medicinal liquid bin intracavity begins to descend gradually, described float also descends thereupon synchronously, when described float gravity during greater than suffered medicinal liquid buoyancy, described float promptly drops to described liquid outlet place fast, and described seal generation elastic deformation fits tightly mutually with described vertical projections; Because the centre of described seal is provided with first projection towards described liquid outlet, described first projection is suitable with described liquid outlet again, and the fitting area between described like this seal and described vertical projections is bigger, and it is sealed into the circumferentia sealing; Again because the bottom center of described buoyancy aid is provided with the second downward projection, described second projection is suitable with described first projection, can make described seal that elastically-deformable scope takes place and be subjected to certain limitation, applying between described like this seal and described vertical projections is tightr, even at float a little under the situation of deflection, also can self-adapting seal, make described medicinal liquid bin intracavity still leave a certain amount of medicinal liquid, sealing effectiveness is safe and reliable, so the present invention can accurately close reliably automatically and effectively sealing;
Because lower member of the present invention adopts hard material to make, the pinching pressure and can not make described lower member produce distortion of external force, described float can guarantee not to be subjected to the effect of external force in the cavity of described lower member, radial clearance between the radial clearance between the radial dimension maximum of described float and the described second vertical fin or the inwall of the described the 3rd vertical fin and described lower member all remains on 0.2～0.3mm, so float of the present invention can be swimmingly and the lifting of medicinal liquid synchronism stability;
Because the first annular lip external diameter of the present invention is greater than the radial dimension of inscribed circle between each described first vertical fin, described float is when buoyance lift, described first annular lip is stopped by the described first vertical fin, the buoyance lift limitation in height of described like this float within the specific limits, therefore under the certain situation of described medicinal liquid bin height, can be as required the circle footpath and the length of float be strengthened, thus the bigger buoyancy lift of acquisition, and float can rise rapidly after changing liquid; Again because described buoyancy aid is a hollow vertebra tip circle cylinder, when medicinal liquid when described inlet enters in the described medicinal liquid bin chamber, the medicinal liquid drop contacts with the vertical outer circumferential walls of vertebra shape and flows into described medicinal liquid bin intracavity along the vertical outer circumferential walls of vertebra shape, the present invention can reduce medicinal liquid and splash into interference, so can accurately open reliably automatically to described float buoyance lift;
Because medicinal liquid bin of the present invention also comprises bottom parts, filter, described filter can stop the micro-bubble that may result from the medicinal liquid in infusion process, bubble buoyance lift progressively after stopping shifts to described medicinal liquid bin intracavity and emersion liquid level via described liquid outlet; Be connected by the inclined-plane with described lower member owing to described vertical projections again, the inclined-plane resistance is less, micro-bubble can be swimmingly compiles and shifts to the medicinal liquid top liquid level via described liquid outlet towards described liquid outlet, ramp structure also makes the space in the filter chamber bigger, the filter area of described filter is also bigger, institute's filtered medicine liquid amount is also relatively large, and the pure medicinal liquid after the filtration can enter in the tube for transfusion of roundlet footpath fully swimmingly via described liquid droping port; Again because the centre of described seal is provided with first projection towards described liquid outlet, when the medicinal liquid in the medicinal liquid bottle of described inlet upper end is failed to the greatest extent, medicinal liquid in the described medicinal liquid bin chamber begins progressively to descend, described float also descends thereupon synchronously, described first projection also thereupon synchronously with in its below medicinal liquid the micro-bubble that may be mixed with laterally squeeze, make it to disappear automatically along the peripheral clearance buoyance lift, the present invention can farthest reduce micro-bubble and mix and to enter in the filter chamber, so can guarantee the smooth and easy and safety of infusion process with medicinal liquid;
Because float of the present invention also comprises counterweight, described counterweight is positioned at the inner chamber of described buoyancy aid, can adjust counterweight according to the weight of described float and the needs of buoyancy, so that float has enough weight and buoyancy, the present invention is is better opened and closed automatically.
Description of drawings
Fig. 1 is the structural representation that the embodiment of the invention one is in opening;
Fig. 2 is the structural representation that the embodiment of the invention one is in closed condition;
Fig. 3 is the structural representation of the embodiment of the invention one float;
Fig. 4 is the structural representation that the embodiment of the invention two is in opening;
Fig. 5 is the structural representation of the embodiment of the invention two floats.
The specific embodiment
Embodiment one:
As Fig. 1, Fig. 2, shown in Figure 3, the present invention includes the medicinal liquid bin, float, described float is arranged in the described medicinal liquid bin, the fixedly connected feed liquor pin 1 in described medicinal liquid bin upper end, the lower end centre is provided with the vertical projections 3 towards intracavity, described feed liquor pin 1 is provided with inlet 2, described protruding 3 are provided with liquid outlet 4, described float comprises buoyancy aid 5, seal 8, bottom 11, counterweight 12, the seal fixed cover, described float is a step structure, described buoyancy aid 5 is a hollow vertebra tip circle cylinder, certain described buoyancy aid 5 can also be other possible shapes such as solid vertebra tip circle cylinder, described seal 8 is soft Thin Elastic film body, between the bottom of described seal 8 and described buoyancy aid 5 axial clearance is arranged, described seal 8 and described vertical projections 3 are suitable, the centre of described seal 8 is provided with first projection 10 towards described liquid outlet 4, described first projection 10 and described liquid outlet 4 are suitable, described bottom 11 is fixedly connected with the bottom of described buoyancy aid 5, described bottom 11 bottom periphery have first annular lip 6 of protruding the bottom surface, bottom center is provided with the second downward projection 7, described second projection 7 is suitable with described first projection 10, described seal 8 is suitable with described first annular lip 6, described counterweight 12 is positioned at the inner chamber of described buoyancy aid 5, described counterweight 12 is a stainless steel ball, described seal fixed cover is provided with the annular solid of second annular lip 9 for periphery, described second annular lip 9 is socketed on described first annular lip 6, the endoporus aperture of described seal fixed cover is greater than the external diameter of described vertical projections 3, described buoyancy aid 5, described bottom 11, described seal fixed cover all adopts the PP plastic production, described seal 8 adopts the silica type soft elastic material to make, described seal 8 is fixedly connected with described seal fixed cover, its connected mode is: the periphery of described seal 8 is provided with the 3rd annular lip 19, the inboard root that described seal fixedly is placed in described second annular lip 9 is provided with annular groove 20, described the 3rd annular lip 19 embeds in the described annular groove 20, can certainly adopt other connected mode, such as described seal 8 and described seal fixed cover is bonding fixing.
Described medicinal liquid bin comprises upper-part 13, lower member 14, bottom parts 15, filter 17, described upper-part 13 adopts soft elasticity PVC plastics to make, described lower member 14, described bottom parts 15 adopts the hard PVC plastics to make, on the described upper-part 13, the lower end respectively with described feed liquor pin 1, described lower member 14 is fixedly connected, described upper-part 13 bottoms are provided with along six first uniform vertical fins 21 of inner rim, six described first vertical fins 21 are positioned at the intracavity of described medicinal liquid bin, described first annular lip, 6 external diameters are greater than the radial dimension of 21 inscribed circles of each described first vertical fin, be restricted with the buoyance lift height that guarantees described float, described lower member 14 inwalls are provided with along six second uniform vertical fins 22 of periphery, the excircle of the barrel portion of described buoyancy aid 5 and 21 radial clearances that 0.2～0.3mm is arranged of the described first vertical fin, the radial dimension maximum of described float (present embodiment is described second annular lip 9) and 22 radial clearances that 0.2～0.3mm is arranged of the described second vertical fin, not crooked to guarantee described float, certain described first vertical fin 21, the number of the described second vertical fin 22 is not limited to six, described bottom parts 15 is fixedly connected with described lower member 14, described bottom parts 15 bottom center are provided with liquid droping port 16, the bottom surface upwards is provided with four along the uniform vertical blade 23 of periphery, the radial dimension of 23 inscribed circles of each described vertical blade is greater than the radial dimension of described liquid droping port 16, described vertical projections 3 is connected by inclined-plane 18 with described lower member 14, described filter 17 is fixedly set in four described vertical blade 23 tops, certainly the number of described vertical blade 23 is not limited to four, described filter 17 adopts macromolecule filter material to make, the described filter 17 that described vertical blade 23 is placed for transverse horizontal has supporting role, make described filter 17 can be evenly filtering liquid medicine swimmingly.
In addition, float of the present invention can also adopt other distressed structure, as with as described in seal 8 and as described in the seal fixed cover make integrative-structure etc.
Embodiment two:
As Fig. 4, shown in Figure 5, not crooked in order to guarantee described float, the described medicinal liquid bin of present embodiment adopts following version: described medicinal liquid bin comprises upper-part 13, lower member 14, bottom parts 15, filter 17, described upper-part 13 adopts soft elasticity PVC plastics to make, described lower member 14, described bottom parts 15 adopts the hard PVC plastics to make, on the described upper-part 13, the lower end respectively with described feed liquor pin 1, described lower member 14 is fixedly connected, described upper-part 13 bottoms are provided with along eight first uniform vertical fins 21 of inner rim, eight described first vertical fins 21 are positioned at the intracavity of described medicinal liquid bin, described first annular lip, 6 external diameters are greater than the radial dimension of 21 inscribed circles of each described first vertical fin, be restricted with the buoyance lift height that guarantees described float, described bottom 11 neighborings are provided with circumferentially the 3rd uniform vertical fin 24 of eight edges, the excircle of the barrel portion of described buoyancy aid 5 and 21 radial clearances that 0.2～0.3mm is arranged of the described first vertical fin, the radial clearance that 0.2～0.3mm is arranged between the inwall of the described the 3rd vertical fin 24 and described lower member 14, not crooked to guarantee described float, certain described first vertical fin 21, the number of the described the 3rd vertical fin 24 is not limited to eight, described bottom parts 15 is fixedly connected with described lower member 14, described bottom parts 15 bottom center are provided with liquid droping port 16, the bottom surface upwards is provided with three along the uniform vertical blade 23 of periphery, the radial dimension of 23 inscribed circles of each described vertical blade is greater than the radial dimension of described liquid droping port 16, described vertical projections 3 is connected by inclined-plane 18 with described lower member 14, described filter 17 is fixedly set in four described vertical blade 23 tops, certainly the number of described vertical blade 23 is not limited to three, the described filter 17 that described vertical blade 23 is placed for transverse horizontal has supporting role, make described filter 17 can be evenly filtering liquid medicine swimmingly.
Other architectural features such as the described float of present embodiment are with embodiment one.
In addition, present embodiment the described the 3rd vertical fin 24 also can be arranged on described seal fixed cover or the described buoyancy aid 5, its purpose all be for guarantee described float in the process of buoyance lift and decline activity freely, not crooked, be not stuck.
The present invention can be widely used in medical field.
Claims (10)
1, a kind of automatic controlling arrangement of transfusion system, comprise the medicinal liquid bin, float, described float is arranged in the described medicinal liquid bin, described medicinal liquid bin upper end fixedly connected feed liquor pin (1), the lower end centre is provided with towards the vertical projections of intracavity (3), described feed liquor pin (1) is provided with inlet (2), described projection (3) is provided with liquid outlet (4), it is characterized in that: described float comprises buoyancy aid (5), seal (8), described buoyancy aid (5) is a cylinder, described seal (8) is soft elastomer, between the bottom of described seal (8) and described buoyancy aid (5) axial clearance is arranged, described seal (8) is suitable with described vertical projections (3).
2, automatic controlling arrangement of transfusion system according to claim 1, it is characterized in that: described buoyancy aid (5) is a hollow vertebra tip circle cylinder, described float also comprises bottom (11), counterweight (12), described bottom (11) is fixedly connected with the bottom of described buoyancy aid (5), described bottom (11) bottom periphery has first annular lip (6) of protruding the bottom surface, described seal (8) is suitable with described first annular lip (6), and described counterweight (12) is positioned at the inner chamber of described buoyancy aid (5).
3, automatic controlling arrangement of transfusion system according to claim 2, it is characterized in that: described medicinal liquid bin comprises upper-part (13), lower member (14), described upper-part (13) adopts soft elastic material to make, described lower member (14) adopts hard material to make, on the described upper-part (13), the lower end respectively with described feed liquor pin (1), described lower member (14) is fixedly connected, described upper-part (13) bottom is provided with along several uniform first vertical fins (21) of inner rim, the described first vertical fin (21) is positioned at the intracavity of described medicinal liquid bin, described float is a step structure, and described first annular lip (6) external diameter is greater than the radial dimension of inscribed circle between each described first vertical fin (21).
4, automatic controlling arrangement of transfusion system according to claim 3, it is characterized in that: described lower member (14) inwall is provided with along several uniform second vertical fins (22) of periphery, the radial clearance that 0.2～0.3mm is arranged between the excircle of the barrel portion of described buoyancy aid (5) and the described first vertical fin (21) has the radial clearance of 0.2～0.3mm between the radial dimension maximum of described float and the described second vertical fin (22).
5, automatic controlling arrangement of transfusion system according to claim 4, it is characterized in that: the centre of described seal (8) is provided with first projection (10) towards described liquid outlet (4), and described first projection (10) is suitable with described liquid outlet (4).
6, automatic controlling arrangement of transfusion system according to claim 5 is characterized in that: the bottom center of described bottom (11) is provided with downward second projection (7), and described second projection (7) is suitable with described first projection (10).
7, automatic controlling arrangement of transfusion system according to claim 6, it is characterized in that: described medicinal liquid bin also comprises bottom parts (15), filter (17), described bottom parts (15) is fixedly connected with described lower member (14), described bottom parts (15) bottom center is provided with liquid droping port (16), the bottom surface upwards is provided with several along the uniform vertical blade (23) of periphery, the radial dimension of inscribed circle is greater than the radial dimension of described liquid droping port (16) between each described vertical blade (23), described vertical projections (3) is connected by inclined-plane (18) with described lower member (14), and described filter (17) is fixedly set in described vertical blade (23) top.
8, according to any described automatic controlling arrangement of transfusion system of claim 2 to 7, it is characterized in that: described float also comprises the seal fixed cover, described seal fixed cover is the annular solid that periphery is provided with second annular lip (9), described seal (8) is fixedly connected with described seal fixed cover, described second annular lip (9) is socketed on described first annular lip (6), and the endoporus aperture of described seal fixed cover is greater than the external diameter of described vertical projections (3).
9, automatic controlling arrangement of transfusion system according to claim 8, it is characterized in that: the periphery of described seal (8) is provided with the 3rd annular lip (19), the inboard root that described seal fixedly is placed in described second annular lip (9) is provided with annular groove (20), and described the 3rd annular lip (19) embeds in the described annular groove (20).
10, automatic controlling arrangement of transfusion system according to claim 3, it is characterized in that: described float lower outer periphery is provided with several along the 3rd uniform vertical fin (24) of periphery, the radial clearance that 0.2～0.3mm is arranged between the excircle of the barrel portion of described buoyancy aid (5) and the described first vertical fin (21) has the radial clearance of 0.2～0.3mm between the inwall of the described the 3rd vertical fin (24) and described lower member (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100348909A CN100425297C (en) | 2005-05-31 | 2005-05-31 | Automatic controlling arrangement of transfusion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100348909A CN100425297C (en) | 2005-05-31 | 2005-05-31 | Automatic controlling arrangement of transfusion system |
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| Publication Number | Publication Date |
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| CN1736500A CN1736500A (en) | 2006-02-22 |
| CN100425297C true CN100425297C (en) | 2008-10-15 |
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| CNB2005100348909A Expired - Fee Related CN100425297C (en) | 2005-05-31 | 2005-05-31 | Automatic controlling arrangement of transfusion system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068737A (en) * | 2011-02-09 | 2011-05-25 | 贾宇东 | Automatic exhaust half-full transfusion system liquid-filter-storage dropping bottle |
| CN103041473B (en) * | 2013-01-25 | 2016-02-24 | 日日新知识产权投资温州有限公司 | A kind of automatic liquid-stopping dropping funnel and there is the transfusion device of this dropping funnel |
| CN105477750B (en) * | 2016-01-04 | 2018-12-07 | 湖南省绿洲惠康发展有限公司 | Disposable automatic liquid-stopping transfusion apparatus |
| CN105521531A (en) * | 2016-01-06 | 2016-04-27 | 日日新知识产权投资温州有限公司 | Infusion apparatus with infusion-stopping function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0928794A (en) * | 1995-07-24 | 1997-02-04 | Ko Kinwa | Controller for drip injector |
| CN2272753Y (en) * | 1996-08-12 | 1998-01-21 | 程惠民 | Transfusion alarm device |
| CN1333061A (en) * | 2000-07-11 | 2002-01-30 | 圆明实业股份有限公司 | Improvement for intravenous drip syringe controller |
| US6485454B1 (en) * | 2000-10-13 | 2002-11-26 | Edward Yang | Automatic infusion set for continuously infusing liquid medicine of double bottles |
| CN1526455A (en) * | 2003-09-18 | 2004-09-08 | 虞家珍 | Intravenous drip injector controller |
| CN2792517Y (en) * | 2005-05-31 | 2006-07-05 | 虞家珍 | Automatic controller of infusion device |
-
2005
- 2005-05-31 CN CNB2005100348909A patent/CN100425297C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0928794A (en) * | 1995-07-24 | 1997-02-04 | Ko Kinwa | Controller for drip injector |
| CN2272753Y (en) * | 1996-08-12 | 1998-01-21 | 程惠民 | Transfusion alarm device |
| CN1333061A (en) * | 2000-07-11 | 2002-01-30 | 圆明实业股份有限公司 | Improvement for intravenous drip syringe controller |
| US6485454B1 (en) * | 2000-10-13 | 2002-11-26 | Edward Yang | Automatic infusion set for continuously infusing liquid medicine of double bottles |
| CN1526455A (en) * | 2003-09-18 | 2004-09-08 | 虞家珍 | Intravenous drip injector controller |
| CN2792517Y (en) * | 2005-05-31 | 2006-07-05 | 虞家珍 | Automatic controller of infusion device |
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| CN1736500A (en) | 2006-02-22 |
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