CN102178988A - Disposable safety transfusion device - Google Patents
Disposable safety transfusion device Download PDFInfo
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- CN102178988A CN102178988A CN 201110123270 CN201110123270A CN102178988A CN 102178988 A CN102178988 A CN 102178988A CN 201110123270 CN201110123270 CN 201110123270 CN 201110123270 A CN201110123270 A CN 201110123270A CN 102178988 A CN102178988 A CN 102178988A
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- valve
- infusion set
- check valve
- spool
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Abstract
The invention discloses a disposable safety transfusion device, which comprises a transfusion channel, wherein a liquid receiving needle, a liquid receiving hose, a dropping funnel, a filter device, a vein needle connecting tube and a vein needle tube which are communicated sequentially are arranged on the transfusion channel; and a flow regulator is sleeved outside the liquid receiving hose. The disposable safety transfusion device is characterized in that a check valve is arranged on the transfusion channel and comprises a valve body and a valve core; and when the pressure at an outlet of an inner cavity of the valve body is higher than that at an inlet of the inner cavity of the valve body, the check valve is closed automatically. The disposable safety transfusion device can prevent air from entering human bodies and prevent blood from flowing reversely, and can improve the utilization rate of liquid medicine or the blood fully, so the disposable safety transfusion device is a transfusion device with high efficiency.
Description
Technical field
The present invention relates to medical instruments field, particularly a kind of disposable infusion set.
Background technology
Medical department is infused to patient at present, generally adopt disposable infusion set during blood transfusion, disposable infusion device comprises disposable infusion set, disposable use titration tubular type transfusion device, disposable use precision filter infusion set, the light transfusion device is advanced in disposable use, disposable working pressure fluid delivery apparatus is with transfusion device and disposable use blood exchange transfusion set etc., mainly there is the deficiency of following three aspects in above-mentioned these disposable infusion devices: 1) when infusion finishes, infusion set can not realize closing automatically termination, so just might make air admission in the human body body, thereby can bring certain hidden danger human body safety; 2) in infusion process,, might make in the reverse infusion set that backflows of blood of human body, thereby bring unnecessary fear to the patient if patient's position changes; 3) when infusion finishes, common residual more medicinal liquid of meeting or blood in the infusion set, thus cause unnecessary waste.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention provides and a kind ofly can prevent the air admission human body, can prevent blood back flow again, and can fully improve the disposable safe infusion set of medicinal liquid or blood utilization rate.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of disposable safe infusion set, comprise an infusion channel, described infusion channel be provided with successively connect connect be subjected to the liquid pin, be subjected to the liquid flexible pipe, dropping funnel, filter element, intravenous needle connection tube and vein needle tubing, the described liquid hose overcoat that is subjected to has flow regulator, it is characterized in that: described infusion channel is provided with a check valve, described check valve comprises valve body and spool, and when the pressure in described body cavity exit during greater than the pressure of described body cavity import department, described check valve is closed automatically.
Preferably, also be provided with a shutoff valve on the described infusion channel, the spool proportion of described shutoff valve is less than the proportion of medicinal liquid or blood.
Preferably, be provided with an intravenous needle Connection Block between described filter element and the described intravenous needle connection tube, described shutoff valve is between described filter element and described intravenous needle Connection Block.
Preferably, described check valve is between described shutoff valve and described vein needle tubing.
Preferably, the spool proportion of described shutoff valve is less than 1 gram/cm
3
Preferably, the area of described intravenous needle connection tube is less than 1.5 square millimeters.
Preferably, the valve body import of described check valve is an international standard female cone hole of 6: 100, and the valve outlet of described check valve and described intravenous needle connection tube connect the structure that links into an integrated entity.
Preferably, the platypelloid type tubular structure of described spool for making by soft macromolecular material, an end of described spool entangles the import of described body cavity, and the other end of described spool is closed naturally in original state.
Preferably, the valve body import of described check valve is an international standard female cone hole of 6: 100, and the valve outlet of described check valve is an international standard cylindrical conehead of 6: 100.
Preferably, described shutoff valve to the described total length that is subjected to liquid pin needle point greater than the total length of described shutoff valve to described intravenous needle bobbin point.
Technique scheme has following beneficial effect: this disposable safe infusion set is provided with check valve on infusion channel, like this in infusion process, the pressure that causes the import of one-way valve intracoelomic cavity when patient's changing position or the walking of standing up is during less than the pressure of body cavity outlet, check valve meeting auto-closing, thereby can effectively stop the reverse inflow infusion set of blood of human body, avoid the patient to produce the feared state of mind.And also be provided with a shutoff valve on the infusion channel of the safe transfusion device of this structure, the spool proportion of shutoff valve is less than the proportion of medicinal liquid or blood, the spool of shutoff valve just can fluctuate by the height with medicinal liquid or blood in the valve body of shutoff valve like this, when the intravital liquid level of shutoff valve valve drops to certain position, the spool of shutoff valve contacts with composition surface on the valve body to coincide and makes the shutoff valve closure, thereby make this infusion set stop infusion medicinal liquid or blood automatically, and can effectively prevent the air admission human body.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of description, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
Fig. 3 is the structural representation of embodiment of the invention check valve.
Fig. 4 is the assembling unit structure sketch map of a kind of check valve of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail.
As shown in Figure 1, this disposable safe infusion set be provided with successively connect connect be subjected to liquid pin 1, be subjected to liquid flexible pipe 2, dropping funnel 4, filter element 5, intravenous needle connection tube 9 and vein needle tubing 10, be subjected to be with on the liquid flexible pipe 2 a flow actuator 3, also be provided with an intravenous needle Connection Block 8 between filter element 5 and the intravenous needle connection tube 9, above-mentioned parts connect to be tightly connected and form the infusion channel of this disposable safe infusion set.
Be provided with a shutoff valve between filter element 5 and intravenous needle Connection Block 8, the valve body 60 of this choke valve is positioned at the lower end of filter element 5, is provided with spool 61 in the valve body 60, be provided with in the inner chamber of valve body 60 can with the composition surface 62 of spool 61 driving fits.The proportion of spool 61 should be less than the proportion of medicinal liquid or blood, generally speaking less than 1 gram/cm
3Like this when in the inner chamber of valve body 60 medicinal liquid or blood being arranged, spool 61 can fluctuate with liquid level, and when the liquid level in valve body 60 inner chambers low to a certain degree the time, spool 61 will contact with composition surface 62 to coincide and make this shutoff valve closure, can make this infusion set stop infusion medicinal liquid or blood automatically like this, and can effectively stop air admission in human body.
Again as shown in Figure 1, between intravenous needle connection tube 9 and vein needle tubing 10, also run through and be sealedly connected with a check valve, this check valve comprises valve body 70 and spool 71, spool 71 is arranged in the inner chamber of valve body 70, the platypelloid type tubular structure of spool 71 for making by soft macromolecular material, one end of spool 71 entangles the import 72 of valve body 70 inner chambers, and the other end of spool 71 is closed naturally in original state.In infusion process, when the pressure at valve body 70 inner chamber imports 72 places exported the pressure at 73 places greater than valve body 70 inner chambers, spool 71 original states are an end of nature closure to be opened automatically, can carry out normal infusion like this; When infusion finishes or in infusion process, when the pressure that the patient's changing position or the walking of standing up cause valve body 70 inner chamber imports 72 places is less than or equal to valve body 70 inner chambers and exports the pressure at 73 places, spool 71 will be closed again, can prevent the blood of human body reverse backflow like this, thereby avoid the patient to produce panic psychology.
This infusion set in use, inserted in medicinal liquid (blood) bottle or the bag by liquid pin 1, push dropping funnel 4 then, make medicinal liquid (blood) stand liquid flexible pipe 2, filter element 5 arrives in the valve body 60 of shutoff valve, spool 61 buoyancy of shutoff valve move up with the liquid level in the valve body 60, thereby spool 61 is separated with composition surface 62, shutoff valve is opened, medicinal liquid this moment (blood) is by the inner chamber import 72 of this shutoff valve and process intravenous needle Connection Block 8 and intravenous needle connection tube 9 inflow check valve valve bodies 70, because the pressure at 72 places of valve body 70 inner chamber imports at this moment exports the pressure at 73 places greater than valve body 70 inner chambers, the end that spool 71 original states are the nature closure will move to be opened, and medicinal liquid (blood) can enter in the human body by this check valve and by vein needle tubing 10 like this.The stage casing part of the valve body 70 of check valve should adopt elastomer macromolecule material to make, and is convenient to observe the accuracy of puncture human vein like this.
After the medicinal liquid (blood) in medicinal liquid (blood) bottle or the bag is totally lost, liquid level will along be subjected to liquid pin 1, be subjected to liquid flexible pipe 2, dropping funnel 4, filter element 5 and shutoff valve descend gradually, when the liquid level in the valve body 60 drops to certain altitude, spool 61 relies on the gravity of self to coincide with composition surface 62, shutoff valve is ended, infusion can stop automatically like this, and can prevent that ambient atmos from entering into human body.The pressure at 72 places of valve body 70 inner chamber imports at this moment is less than or equal to the pressure that valve body 70 inner chambers export 73 places, and spool 71 will be closed again, can prevent the blood of human body reverse backflow like this, thereby avoid the patient to produce panic psychology.In like manner in infusion process, if the patient's changing position or the walking of standing up cause when the pressure at valve body 70 inner chamber imports 72 places is less than or equal to valve body 70 inner chambers and exports the pressure at 73 places, spool 71 also again closure prevent the blood of human body reverse backflow.
Greater than the total length of shutoff valve to vein needle tubing 10 needle points, the internal diameter area of intravenous needle connection tube 9 is less than 1.5 square millimeters to the total length that is subjected to liquid pin 1 needle point for shutoff valve in this device.As a kind of preferable setting, shutoff valve is to being subjected to liquid pin 1 needle point total length less than 600 millimeters, the internal diameter of intravenous needle connection tube 9 is less than 1.5 millimeters, like this when infusion finishes, from the valve body 60 of shutoff valve and will be less than 3 milliliters to total medicinal liquid (blood) residual quantity of inner chamber the vein needle tubing 10, compare with the infusion set of present routine, every infusion one example can be utilized 10 milliliters to 30 milliliters of medicinal liquids (blood) more, can effectively reduce unnecessary waste.
As shown in Figure 2, be another embodiment of the present invention, check valve is between shutoff valve and intravenous needle Connection Block 8 in this embodiment, and the valve body 70 of check valve is connected to form infusion channel with the valve body 60 and 8 perforations of intravenous needle Connection Block of adjacent shutoff valve, all the other structures and basically identical embodiment illustrated in fig. 1 be not so describing in detail at this.
As shown in Figure 3, the check valve described in the foregoing description can be an independent part, and valve body 70 imports of check valve are an international standard female cone hole 74 of 6: 100, and the outlet of valve body 70 is an international standard cylindrical conehead 75 of 6: 100.This check valve is arranged to an independent part, can make its as one independently product and other transfusion apparatus be used in combination, thereby make existing transfusion apparatus also can realize preventing the function of blood back flow, operation principle among its operation principle and the embodiment one is identical, so be not described in detail at this.
As shown in Figure 4, the import of valve body 70 that also can check valve is set to an international standard female cone hole 74 of 6: 100, and makes the valve outlet of check valve and intravenous needle connection tube 9 connect the structure that links into an integrated entity.Adopt this structure can make check valve and intravenous needle connection tube 9 form an independently venous transfusion needle assembly, so just need not to re-use intravenous needle Connection Block 8 embodiment illustrated in fig. 1, thereby this infusion set is effectively saved production cost guaranteeing to have under the prerequisite of identical function.
More than the disposable safe infusion set that the embodiment of the invention provided is described in detail; for one of ordinary skill in the art; thought according to the embodiment of the invention; all can change to some extent in specific embodiments and applications; therefore this description only is used in the embodiment of the invention is described; should not be construed as limitation of the present invention, all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (10)
1. disposable safe infusion set, comprise an infusion channel, described infusion channel be provided with successively connect connect be subjected to the liquid pin, be subjected to the liquid flexible pipe, dropping funnel, filter element, intravenous needle connection tube and vein needle tubing, the described liquid hose overcoat that is subjected to has flow regulator, it is characterized in that: described infusion channel is provided with a check valve, described check valve comprises valve body and spool, and when the pressure in described body cavity exit during greater than the pressure of described body cavity import department, described check valve is closed automatically.
2. disposable safe infusion set according to claim 1 is characterized in that: also be provided with a shutoff valve on the described infusion channel, the spool proportion of described shutoff valve is less than the proportion of medicinal liquid or blood.
3. disposable safe infusion set according to claim 2 is characterized in that: be provided with an intravenous needle Connection Block between described filter element and the described intravenous needle connection tube, described shutoff valve is between described filter element and described intravenous needle Connection Block.
4. disposable safe infusion set according to claim 3 is characterized in that: described check valve is between described shutoff valve and described vein needle tubing.
5. disposable safe infusion set according to claim 2 is characterized in that: the spool proportion of described shutoff valve is less than 1 gram/cm
3
6. disposable safe infusion set according to claim 1 is characterized in that: the area of described intravenous needle connection tube is less than 1.5 square millimeters.
7. disposable safe infusion set according to claim 1, it is characterized in that: the valve body import of described check valve is an international standard female cone hole of 6: 100, and the valve outlet of described check valve and described intravenous needle connection tube connect the structure that links into an integrated entity.
8. disposable safe infusion set according to claim 1, it is characterized in that: the platypelloid type tubular structure of described spool for making by soft macromolecular material, one end of described spool entangles the import of described body cavity, and the other end of described spool is closed naturally in original state.
9. disposable safe infusion set according to claim 1 is characterized in that: the valve body import of described check valve is an international standard female cone hole of 6: 100, and the valve outlet of described check valve is an international standard cylindrical conehead of 6: 100.
10. disposable safe infusion set according to claim 1 is characterized in that: described shutoff valve to the described total length that is subjected to liquid pin needle point greater than the total length of described shutoff valve to described intravenous needle bobbin point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110123270 CN102178988A (en) | 2011-05-13 | 2011-05-13 | Disposable safety transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110123270 CN102178988A (en) | 2011-05-13 | 2011-05-13 | Disposable safety transfusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102178988A true CN102178988A (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110123270 Pending CN102178988A (en) | 2011-05-13 | 2011-05-13 | Disposable safety transfusion device |
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| CN (1) | CN102178988A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013082882A1 (en) * | 2011-12-05 | 2013-06-13 | 郑州昊能科技有限公司 | Automatic cut-off apparatus of disposable intravenous transfusion device coupled with bi-directional negative pressure conduction |
| CN106215272A (en) * | 2016-08-31 | 2016-12-14 | 赵萍萍 | A kind of Multi-function ultrafiltration transfusion set |
| CN106806959A (en) * | 2017-03-02 | 2017-06-09 | 刘斐天 | A kind of automatic liquid-stopping transfusion system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2141290Y (en) * | 1992-10-23 | 1993-09-01 | 刘发东 | Disposable return-flow-proof infusion |
| CN2582633Y (en) * | 2002-11-10 | 2003-10-29 | 陈振业 | Disposable multifunctional safety transfusion system |
| CN2721106Y (en) * | 2004-02-25 | 2005-08-31 | 梁海东 | Multifunctional infusion apparatus |
| CN200998470Y (en) * | 2007-01-19 | 2008-01-02 | 纪淑云 | Venous transfusion device |
| CN202128777U (en) * | 2011-05-13 | 2012-02-01 | 朱福弟 | Disposable safety transfusion device |
-
2011
- 2011-05-13 CN CN 201110123270 patent/CN102178988A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2141290Y (en) * | 1992-10-23 | 1993-09-01 | 刘发东 | Disposable return-flow-proof infusion |
| CN2582633Y (en) * | 2002-11-10 | 2003-10-29 | 陈振业 | Disposable multifunctional safety transfusion system |
| CN2721106Y (en) * | 2004-02-25 | 2005-08-31 | 梁海东 | Multifunctional infusion apparatus |
| CN200998470Y (en) * | 2007-01-19 | 2008-01-02 | 纪淑云 | Venous transfusion device |
| CN202128777U (en) * | 2011-05-13 | 2012-02-01 | 朱福弟 | Disposable safety transfusion device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013082882A1 (en) * | 2011-12-05 | 2013-06-13 | 郑州昊能科技有限公司 | Automatic cut-off apparatus of disposable intravenous transfusion device coupled with bi-directional negative pressure conduction |
| CN106215272A (en) * | 2016-08-31 | 2016-12-14 | 赵萍萍 | A kind of Multi-function ultrafiltration transfusion set |
| CN106806959A (en) * | 2017-03-02 | 2017-06-09 | 刘斐天 | A kind of automatic liquid-stopping transfusion system |
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Application publication date: 20110914 |