CN1202873C - Intravenous drip injector controller - Google Patents
Intravenous drip injector controller Download PDFInfo
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- CN1202873C CN1202873C CN 03146860 CN03146860A CN1202873C CN 1202873 C CN1202873 C CN 1202873C CN 03146860 CN03146860 CN 03146860 CN 03146860 A CN03146860 A CN 03146860A CN 1202873 C CN1202873 C CN 1202873C
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- float
- medicinal liquid
- groove
- smooth
- liquid bin
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Abstract
The present invention discloses a controlling device for an intravenous drip injector, which has the technical scheme that the controlling device for an intravenous drip injector has a good self-sealing effect and a float is in a state of stable suspension under the condition that the conservator swings and tilts. The controlling device for an intravenous drip injector comprises a medical liquor conservator (1) and a float (2), wherein the float (2) is arranged in the medical liquor conservator (1); a liquid inlet (3) is arranged at the upper end of the medical liquor conservator (1); a protuberance (5) is arranged in the middle of the lower end of the medical liquor conservator (1), and the protuberance (5) with a smooth upper surface faces to the inner part of a cavity. A liquid outlet (4) is arranged in the axial center of the protuberance (5). The lower part of the float (2) is a basal body whose lower end has a smooth surface; three or more than three blades (6) are arranged at the upper part of the float (2), wherein the blades are connected with the basal body into integration and are uniformly distributed along the central radial direction of the basal body, and interstices are kept at the axial part of the center among the blades (6). The controlling device for an intravenous drip injector can be applied to the field of medical treatment.
Description
Technical field
The present invention relates to a kind of droving injector controller.
Background technology
Need have an intravenous drip when people are sick sometimes and treat, traditional dropping syringe is to add cartridge control valve to control the injection flow on tube for transfusion, medicinal liquid can be stablized inject human body, when medicinal liquid is about to injection and will finish, closed control valve refluxes to prevent air admission human body and blood, and above-mentioned control procedure is manually finished.In the actual injection process, be difficult to inject time determine, need the nurse personnel to remind nurse or nurse tour frequently to determine whether medicinal liquid soon beaten; If nurse personnel Yin Tai is tired when sleeping or the nurse will have an accident when neglecting.Chinese patent publication number CN1333061, open day on January 30th, 2002, the droving injector controller that a kind of name is called " improvement of droving injector controller " is disclosed, this droving injector controller is made up of unsteady container and drop Storage Cup that the bottom is the sphere film like, in injection process, described unsteady container can float on the liquid interface in the Storage Cup, when injection process is about to finish, the described unsteady container action of gravity of institute's holding liquid therein descends and the liquid outlet of obstruction Storage Cup down fast, thereby reaches the effect of closing syringe automatically.But in actual applications, when owing to rock or Storage Cup when tilting, described unsteady container can tilt to descend and make its aspheric surface position be in the liquid outlet of Storage Cup with respect to Storage Cup, thus produce stop up bad; In addition, in injection process,, drop can make its sinking because of dripping in the container that floats frequently, when the liquid in the Storage Cup is enough high, unsteady container can float once more, and when the liquid in the Storage Cup was not high enough, unsteady container just can stop up liquid outlet and influence normal injection when sinking.Therefore, the deficiency that exists of existing droving injector controller is: rock or situation that bin tilts under automatically not good the and float of sealing effectiveness suspend unstable.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provide a kind of rock or situation that bin tilts under sealing effectiveness is better and float is suspending stabilized automatically droving injector controller.
The technical solution adopted in the present invention is: the present invention includes medicinal liquid bin and float, described float is arranged in the described medicinal liquid bin, described medicinal liquid bin upper end is provided with inlet, substantial middle place in lower end is provided with towards intracavity and the level and smooth projection of upper surface, the axial centre of described projection is provided with liquid outlet, described float bottom be the level and smooth matrix of rear surface, top be connected as a single entity with described matrix and along its center radially equally distributed blade more than three or three, leave the gap at central shaft to the position between the described blade.
Described matrix is a cylinder.
Described cylinder lower end is provided with groove, and the upper surface of described groove is level and smooth and vertical with described cylinder axis, and the degree of depth of described groove is less than the height of described projection.
Described cylinder lower end is provided with a groove that step is arranged, be provided with one and the vertical flat board of described cylinder axis in the described groove, described flat board is fixedlyed connected with described groove, the lower surface of described flat board is level and smooth, and the height of the distance of described cylinder lower surface less than described projection arrived in the lower surface of described flat board.
Described cylinder neighboring is provided with some equally distributed vertical lug, nibs.
Leave the gap of 0.3～0.4mm between described blade and the described medicinal liquid bin sidewall, leave the gap of 0.2～0.3mm between described lug, nib and the described medicinal liquid bin sidewall, leave the gap of 3mm between the described blade at central shaft to the position.
The invention has the beneficial effects as follows: because medicinal liquid bin of the present invention lower end is provided with the level and smooth projection of upper surface, the rear surface of float is level and smooth, seals liquid outlet so the projection of float and medicinal liquid bin lower end can be fitted tightly; Because the float upper end is provided with equally distributed blade, between described blade and the medicinal liquid bin sidewall less (0.3～0.4mm) gap is arranged, the whole height of float is strengthened, even rock or situation that the medicinal liquid bin tilts under float also can not tilt to descend with respect to the medicinal liquid bin, so good sealing effect; Owing to leave the gap of 3mm between the described blade in the centre, when making float be in liquid interface not with inlet and the drop interference imported, so float is suspending stabilized; Owing to the groove of surface smoothing is set in described cylinder lower end, the center of gravity of float is descended, with respect to the sealing surface on the float so sealing effectiveness is better; Because float lower cylindrical body periphery is provided with vertical lug, nib, makes the anti-tilt capability of this control device stronger, so sealing effectiveness is better.
Description of drawings
Fig. 1 is the generalized section of the embodiment of the invention one in injection process;
Fig. 2 is the generalized section of the embodiment of the invention one when closing syringe;
Fig. 3 is the positive cross-sectional schematic of the embodiment of the invention one float;
Fig. 4 is the schematic top plan view of the embodiment of the invention one float;
Fig. 5 is the positive cross-sectional schematic of the embodiment of the invention two floats.
The specific embodiment
Embodiment one:
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the present invention includes medicinal liquid bin 1 and float 2, described float 2 is arranged in the described medicinal liquid bin 1, described medicinal liquid bin 1 upper end is provided with inlet 3, the middle part, lower end is provided with towards intracavity and the level and smooth cylindrical projections 5 of upper surface, the axial centre of described projection 5 is provided with liquid outlet 4, described float 2 bottoms are cylinders that the bottom is provided with groove, top is to be connected as a single entity with described cylinder and along its radially equally distributed three blades 6, the degree of depth of described groove is less than the height of described projection 5, the surface smoothing on described groove top and vertical with cylinder axis, leave the gap of 3mm between described three blades 6 to the position at central shaft, leave the gap of 0.3～0.4mm between described three blades 6 and described medicinal liquid bin 1 sidewall, described cylinder neighboring is provided with 8 equally distributed vertical lug, nibs 8, leaves the gap of 0.2～0.3mm between described lug, nib 8 and described medicinal liquid bin 1 sidewall.The plastics that described float 2 employing materials are PP are made, and also can be added with skim soft material (as silica type) on the sealing surface of float 2, to increase sealing effectiveness.In injection process, float 2 can float on the medicinal liquid interface and not influence normal injection, when injection process closes to an end, float 2 descends rapidly under himself weight and atmospheric pressure effect, the smooth surface on groove top just can fit tightly with the cylindrical protrusion 5 on the medicinal liquid bin 1 and stop up liquid outlet 4, thereby realizes closing automatically the purpose of syringe.Because of only leaving the gap of 0.3～0.4mm between blade 6 and medicinal liquid bin 1 sidewall, only leave the gap of 0.2～0.3mm between lug, nib 8 and medicinal liquid bin 1 sidewall, rock or situation that medicinal liquid bin 1 tilts under float 2 can not tilt to descend with respect to medicinal liquid bin 1, can make sealing effectiveness of the present invention better; Because of leaving the gap of 3mm at central shaft to the position between the blade 6, in the time of making float 2 be in liquid interface not with inlet 3 and the drop interference imported, can make float of the present invention 2 suspending stabilized.
Embodiment two:
As Fig. 1, Fig. 2, shown in Figure 5, described cylinder lower end is provided with a groove that step is arranged, be provided with one and described cylinder axis vertical dull and stereotyped 7 in the described groove, described dull and stereotyped 7 lower surface is level and smooth, the height of the distance of described cylinder lower surface less than described projection 5 arrived in described dull and stereotyped 7 lower surface, described dull and stereotyped 7 peripheral shapes and described groove peripheral shape are suitable, and make them pass through interference fit and fixed seal connection.The plastics that described dull and stereotyped 7 employing materials are PP are made, and also can be added with skim soft material (as silica type) on dull and stereotyped 7 sealing surface, and to increase sealing effectiveness, the remaining part employing material on the described float 2 is that the plastics of ABS are made.Owing to forming a cavity between flat board 7 and the groove, do not influence normal injection so can make float 1 in injection process, float on the medicinal liquid interface equally, and seal liquid outlet 4 when soon injection will finish reliably at medicinal liquid.Remainder is with embodiment one.
Claims (6)
1, a kind of droving injector controller, it comprises medicinal liquid bin (1) and float (2), described float (2) is arranged in the described medicinal liquid bin (1), on the described medicinal liquid bin (1), the lower end is provided with inlet (3) and liquid outlet (4), it is characterized in that: be provided with at substantial middle place, described medicinal liquid bin (1) lower end towards intracavity and the level and smooth projection (5) of upper surface, described liquid outlet (4) is arranged on the axial centre of described projection (5), described float (2) bottom is the level and smooth matrix of rear surface, top be connected as a single entity with described matrix and along its center radially equally distributed blade (6) more than three or three, described blade leaves the gap at central shaft to the position between (6).
2, droving injector controller according to claim 1 is characterized in that: described matrix is a cylinder.
3, droving injector controller according to claim 2 is characterized in that: described cylinder lower end is provided with groove, and the upper surface of described groove is level and smooth and vertical with described cylinder axis, and the degree of depth of described groove is less than the height of described projection (5).
4, droving injector controller according to claim 2, it is characterized in that: described cylinder lower end is provided with a groove that step is arranged, be provided with one and the vertical flat board of described cylinder axis (7) in the described groove, described flat board (7) is fixedlyed connected with described groove, the lower surface of described flat board (7) is level and smooth, and the height of the distance of described cylinder lower surface less than described projection (5) arrived in the lower surface of described flat board (7).
5, according to claim 2 or 3 or 4 described droving injector controllers, it is characterized in that: described cylinder neighboring is provided with some equally distributed vertical lug, nibs (8).
6, droving injector controller according to claim 5, it is characterized in that: the gap of leaving 0.3～0.4mm between described blade (6) and described medicinal liquid bin (1) sidewall, leave the gap of 0.2～0.3mm between described lug, nib (8) and described medicinal liquid bin (1) sidewall, leave the gap of 3mm between the described blade (6) at central shaft to the position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146860 CN1202873C (en) | 2003-09-18 | 2003-09-18 | Intravenous drip injector controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146860 CN1202873C (en) | 2003-09-18 | 2003-09-18 | Intravenous drip injector controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1526455A CN1526455A (en) | 2004-09-08 |
| CN1202873C true CN1202873C (en) | 2005-05-25 |
Family
ID=34286656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03146860 Expired - Fee Related CN1202873C (en) | 2003-09-18 | 2003-09-18 | Intravenous drip injector controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1202873C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425297C (en) * | 2005-05-31 | 2008-10-15 | 虞家珍 | Automatic controlling arrangement of transfusion system |
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2003
- 2003-09-18 CN CN 03146860 patent/CN1202873C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1526455A (en) | 2004-09-08 |
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