CN201880140U - Safety valve and blood transfusion device with same - Google Patents
Safety valve and blood transfusion device with same Download PDFInfo
- Publication number
- CN201880140U CN201880140U CN2010206524949U CN201020652494U CN201880140U CN 201880140 U CN201880140 U CN 201880140U CN 2010206524949 U CN2010206524949 U CN 2010206524949U CN 201020652494 U CN201020652494 U CN 201020652494U CN 201880140 U CN201880140 U CN 201880140U
- Authority
- CN
- China
- Prior art keywords
- floating
- blood
- relief valve
- cup
- described floating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000008280 blood Substances 0.000 title claims abstract description 82
- 210000004369 blood Anatomy 0.000 title claims abstract description 82
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 21
- 238000002146 exchange transfusion Methods 0.000 claims description 16
- 238000001802 infusion Methods 0.000 claims description 10
- 229920001875 Ebonite Polymers 0.000 claims description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002153 concerted effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The safety valve comprises a floating cup, a floating cover and a soft rubber base, and the volume ratio of the floating cover to the floating cup for discharging blood is 1.1-2. The transfusion device comprises a contact pin, a dropping funnel, a transfusion tube, an adjusting switch and a syringe needle, wherein a filter funnel for filtering blood is arranged in the dropping funnel, and the safety valve is arranged in the dropping funnel and is positioned below the filter funnel. The arrangement ensures that the blood can provide enough buoyancy force to enable the safety valve to float up by itself when blood transfusion is carried out under the condition that the gravity of the safety valve is constant. Thereby effectively avoided among the prior art because blood is too big to the viscous resistance of floating member, floating member can not come up by oneself and seal the dropping funnel to lead to the phenomenon of blood transfusion ware normal work.
Description
Technical field
This utility model belongs to a kind of medical apparatus and instruments, specifically a kind of relief valve and have the blood exchange transfusion set of this relief valve.
Background technology
Transfusion device mainly comprises contact pin, upper tubing, dropping funnel, following tube for transfusion, by-pass cock and entry needle.When the transfusion device that employing has a said structure is infused to patient, need medical personnel to check the transfusion situation at any time, at the residue medicinal liquid not for a long time, medical personnel then can not leave usually, finish until patient's transfusion infusion needle is extracted.If medicinal liquid exhausts, but infusion needle can cause air to enter in the patient body by transfusion device owing to the effect of negative pressure in the tube for transfusion also in human body so, thereby the patient is damaged or even dead.
In order to solve the problems of the technologies described above, in the prior art, Chinese patent literature CN201061645Y discloses a kind of disposable use automatic-diversion closure transfusion device, mainly is made up of needle for inserting bottle, automatic-diversion closure dropping funnel, flexible pipe, liquid medicine filter, flow regulator and venoclysis needle; Described automatic-diversion closure dropping funnel divides two parts to constitute, wherein cover floats the first half that the automatic-diversion closure dropping funnel is formed in the bonding back of back-up ring with limit on the dropping funnel, the medical plastic spare and the aseptic medical silica-gel driving fit part of floating member are housed in the dropping funnel drain pan, the first half and the dropping funnel drain pan of described dropping funnel are bondd, constitute a complete automatic-diversion closure dropping funnel device.
In the above-mentioned prior art, the dropping funnel drain pan is near double-deck jacket wall is arranged on the aperture position that overlaps on the dropping funnel, set of shells is nested in the double-deck jacket wall of dropping funnel drain pan and achieves a butt joint on the dropping funnel, and floating member is limited in the certain space of dropping funnel drain pan with spacing back-up ring, floating member fluctuates between the bottom of spacing back-up ring and dropping funnel drain pan, open voluntarily in the time of can guaranteeing to have in the dropping funnel liquid drippage, when can in dropping funnel, have liquid again dropping funnel is not sealed; But, when adopting above-mentioned disposable use automatic-diversion closure transfusion device that patient is transfused blood, because the coefficient of viscosity of blood is bigger than medicinal liquid, thereby the viscosity resistance of described floating member is also wanted big, if the floating member design is unreasonable, be easy to so appear at the phenomenon that floating member can't float voluntarily in the blood transfusion process, influenced the normal use of fluid and blood transfusion apparatus.
Also can't be solved always,, in the blood exchange transfusion set, but be never had valve safe in utilization so belonged to very mature technique in transfusion device though floating member (relief valve) is set just because of the problems referred to above.
The utility model content
For this reason, when technical problem to be solved in the utility model is in the prior art that the transfusion device that uses is used for patient transfused blood, because blood is excessive to the viscosity resistance of floating member, described floating member can not float voluntarily, thereby cause the phenomenon of blood exchange transfusion set's cisco unity malfunction, and then a kind of can float voluntarily when blood transfusion relief valve that guarantees blood exchange transfusion set's operate as normal and the blood exchange transfusion set with this relief valve are provided.
For solving the problems of the technologies described above, a kind of relief valve of the present utility model, comprise the ebonite accessory, described ebonite accessory comprises floating cup and the floating head that is connected with described floating cup, described floating cup formation has opening floating cup cavity up, and described floating head is arranged at the top of described floating cup and forms downward opening floating head cavity; The flexible glue base, described flexible glue base is arranged at described floating cup bottom.
Described floating head is 1.1～2 with the volume ratio that floating cup arranges blood.
Described floating head is 1.2 with the volume ratio that floating cup arranges blood.
Described floating cup is connected with the fixed support of described floating head bottom by being arranged on described floating cup cavity inside with described floating head.
Described fixed support comprises that the center that is arranged on described floating cup cavity inside is provided with the cylinder of through hole, and is arranged on the floating head projection cylinder of described floating head towards described floating cup one side, and described floating head projection cylinder matches with described through hole and is connected.
Described cylinder runs through the bottom of described floating cup, and described flexible glue base has one and extends the flexible glue base projection that is provided with towards described through hole, and described flexible glue base projection matches with described through hole on the described cylinder and is connected.
Described floating head is a hemispherical, and described floating cup is cylindrical, and the external diameter of described floating head is greater than the external diameter of described floating cup.
The internal diameter of described floating head is greater than the external diameter of described floating cup.
A kind of blood exchange transfusion set with above-mentioned relief valve comprises contact pin, dropping funnel, tube for transfusion, by-pass cock, entry needle; In described dropping funnel, be provided with the pan that is used for filtering blood; Described relief valve is arranged in the described dropping funnel, and is positioned at described pan below, and the longitudinal center line of described relief valve and the longitudinal center line of described tube for transfusion coincide, and the flexible glue base of described relief valve seals the infusion hole of described dropping funnel bottom.
Technique scheme of the present utility model has the following advantages compared to existing technology:
It is 1.1～2 with the volume ratio that floating cup arranges blood that relief valve described in the utility model is provided with described floating head, this set has guaranteed under the certain situation of described relief valve self gravitation, blood can provide enough buoyancy and described relief valve can be floated voluntarily during blood transfusion, thereby effectively avoided in the prior art because blood is excessive to the viscosity resistance of floating member, described floating member can not float voluntarily and seal dropping funnel, causes the phenomenon of blood exchange transfusion set's cisco unity malfunction.
Relief valve described in the utility model is provided with the external diameter of the external diameter of described floating head greater than described floating cup, perhaps the internal diameter of floating head is greater than the external diameter of described floating cup, so just guaranteed that floating head can arrange bigger blood volume more, made floating head be enough under its buoyancy that is subjected to, spur the viscosity resistance that the cup of floating downward overcomes blood.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, this utility model is described in further detail, wherein below
Fig. 1 is the structural representation of relief valve described in the utility model;
Fig. 2 is the main shaft cutaway view of relief valve described in the utility model;
Fig. 3 is a blood exchange transfusion set's described in the utility model structural representation.
Fig. 4 is the working state figure of blood exchange transfusion set described in the utility model described relief valve when being used to transfuse blood.
Reference numeral is expressed as among the figure: 1-fixed support, the floating cup of 2-, the floating cup of 3-cavity, the 4-floating head, 5-floating head cavity, 6-cylinder, the 7-through hole, 8-floating head projection cylinder, 9-flexible glue base, 10-flexible glue base projection, 11-contact pin, 12-dropping funnel, the 13-pan, 14-relief valve, 15-infusion hole, the 16-tube for transfusion, 17-by-pass cock, 18-entry needle.
The specific embodiment
As depicted in figs. 1 and 2, the described ebonite accessory of relief valve 14 described in the utility model comprise floating cup 2 with described floating cup 2 floating heads that are connected 4, described floating cup 2 forms opening floating cup cavity 3 up, and described floating head 4 is arranged at the top of described floating cup 2 and forms downward opening floating head cavity 5.Described relief valve 14 also comprises flexible glue base 9, and described flexible glue base 9 is arranged at described floating cup 2 bottoms.
As shown in Figure 4, above-mentioned relief valve is used for the blood exchange transfusion set when transfusing blood to patient, and described floating cup 2 is dipped among the blood, fills with blood in the opening floating cup cavity 3 up simultaneously, is subjected to blood and offers its buoyancy thereby described floating cup 2 arranges blood.In addition, because floating head 4 forms downward opening floating head cavity 5, when floating head 4 is dipped in the blood like this, be full of air in the certain volume of described floating head cavity 5 inside, that is to say that this a part of air has also arranged the blood of certain volume, the volume that described like this floating head 4 arranges blood will be subjected to much larger than the buoyancy of floating head 4 weight own much larger than the volume of described floating head 4 itself.Under the buoyancy of the floating cup 2 of integral body and floating head 4 integral body, guarantee that described relief valve can break through the viscosity resistance of blood like this, thereby start voluntarily and float.Wherein, described floating head 4 can select to be set to arbitrary shape, and as preferred embodiment, present embodiment is selected to be provided with described floating head 4 and is hemispherical.
Wherein, be not to be that the floating head 4 and the floating cup 2 of arbitrary volume all can achieve the above object, discover through the inventor, only under described floating head 4 and described floating cup 2 volume ratios that arrange blood are 1.1～2 situation, just can successfully realize the come-up of startup voluntarily of relief valve.Why be provided with like this, be because under the certain situation of described relief valve self gravitation, have only as much as possible when volumes that floating head 4 and floating cup 2 arrange blood being set making blood transfusion blood provide enough buoyancy that described relief valve can be floated voluntarily can for described floating head 4 and floating cup 2, thereby effectively avoided in the prior art because blood is excessive to the viscosity resistance of floating member, make described floating member not float voluntarily, thereby cause the phenomenon of blood exchange transfusion set's cisco unity malfunction.As preferred embodiment, described floating head 4 is set to 1.2 with floating cup 2 volume ratios that arrange blood.
Described floating cup 2 preferably is set for cylindrical, the external diameter of described floating head 4 is greater than the external diameter of described floating cup 2, perhaps the internal diameter of floating head 4 is greater than the external diameter of described floating cup 2, so just guaranteed that floating head 4 can arrange bigger blood volume more, made floating head be enough under its buoyancy that is subjected to, spur the viscosity resistance that the cup of floating downward overcomes blood.
As shown in Figure 1, described floating cup 2 is connected with the fixed support 1 of described floating head 4 bottoms by being arranged on described floating cup cavity 3 inside with described floating head 4.As seen from Figure 2, described fixed support 1 comprises that the center that is arranged on described floating cup cavity 3 inside is provided with the cylinder 6 of through hole 7 and is arranged on the floating head projection cylinder 8 of described floating head 4 towards described floating cup 2 one sides, and described floating head projection cylinder 8 matches with described floating cup through hole 7 and is connected.Described cylinder 6 runs through the bottom of described floating cup 2, and described flexible glue base 9 has one and extends the flexible glue base projection 10 that is provided with towards described through hole, and described flexible glue base projection 10 matches with described through hole 7 on the described cylinder 6 and is connected.
Blood exchange transfusion set described in the utility model comprises contact pin 11, dropping funnel 12, tube for transfusion 16, by-pass cock 17, entry needle 18 as shown in Figure 3; In described dropping funnel 12, be provided with the pan 13 that is used for filtering blood; Described relief valve 14 is arranged in the described dropping funnel 12, and be positioned at described pan 13 belows, the longitudinal center line of the longitudinal center line of described relief valve 14 and described tube for transfusion 16 coincides, and the infusion hole 15 of 9 pairs of described dropping funnels of the flexible glue base of described relief valve 14,12 bottoms seals.
Blood exchange transfusion set described in the utility model in use, contact pin 11 inserts in the blood bags, in the dropping funnel 12 below the pipeline of blood in contact pin flows to.This moment, the infusion hole 15 of dropping funnel 12 bottoms was sealed by relief valve 14, and blood constantly gathers in dropping funnel 12 bottoms after pan 13 filters.Along with the rising of gathering the blood liquid level, blood covers floating cup 2 edges and injects floating cup cavity 3.The blood liquid level continue to raise, and treats that liquid level is raised to described floating head 4 edges, blood with the air seal in the floating head cavity 5 wherein, the blood liquid level will continue to rise along described floating head outer surface.Continuous rising along with the blood liquid level, blood constantly increases the buoyancy of relief valve 14, when buoyancy greater than the gravity of relief valve 14 self and blood during to the making a concerted effort of the viscosity resistance of relief valve 14, relief valve rises, thereby open the infusion hole 15 of dropping funnel 12 bottoms, as shown in Figure 4.Because it is 1.1～2 with described floating cup 2 volume ratios that arrange blood that this utility model is provided with described floating head 4, so buoyancy can satisfy certainly greater than the gravity of relief valve 14 self and blood this condition of making a concerted effort to the viscosity resistance of relief valve 14, has so just guaranteed that described relief valve can float voluntarily.Blood injects the intravital blood vessel of people through tube for transfusion 16, entry needle 18 downwards.Adjust by-pass cock 17, can regulate the speed of blood flow among the blood exchange transfusion set.
When blood is totally lost in the blood bag, no longer including blood in the dropping funnel 12 flows into, but still contain a certain amount of blood, along with the blood in the dropping funnel 12 continue to reduce, floating cup 2 also descends along with the decline of the horizontal plane of blood, when not having blood in the dropping funnel 12, flexible glue base 9 contact dropping funnels 12 bottoms, thus realize described infusion hole 15 is sealed, so the air in the dropping funnel 12 just can not enter tube for transfusion 16 by infusion hole 15, then enter in the human body, so ensured patient's life security.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the present utility model.
Claims (8)
1. a relief valve comprises the ebonite accessory, and described ebonite accessory comprises floating cup and the floating head that is connected with described floating cup, and described floating cup formation has opening floating cup cavity up, and described floating head is arranged at the top of described floating cup and forms downward opening floating head cavity;
The flexible glue base, described flexible glue base is arranged at described floating cup bottom;
It is characterized in that:
Described floating head is 1.1～2 with the volume ratio that floating cup arranges blood.
2. relief valve according to claim 1 is characterized in that: described floating head is 1.2 with the volume ratio that floating cup arranges blood.
3. relief valve according to claim 1 and 2 is characterized in that: described floating cup is connected with the fixed support of described floating head bottom by being arranged on described floating cup cavity inside with described floating head.
4. relief valve according to claim 3, it is characterized in that: described fixed support comprises that the center that is arranged on described floating cup cavity inside is provided with the cylinder of through hole, and being arranged on the floating head projection cylinder of described floating head towards described floating cup one side, described floating head projection cylinder matches with described through hole and is connected.
5. relief valve according to claim 4, it is characterized in that: described cylinder runs through the bottom of described floating cup, described flexible glue base has one and extends the flexible glue base projection that is provided with towards described through hole, and described flexible glue base projection matches with described through hole on the described cylinder and is connected.
6. according to claim 1 or 2 or 4 or 5 described relief valve, it is characterized in that: described floating head is a hemispherical, and described floating cup is cylindrical, and the external diameter of described floating head is greater than the external diameter of described floating cup.
7. relief valve according to claim 6 is characterized in that: the internal diameter of described floating head is greater than the external diameter of described floating cup.
8. the blood exchange transfusion set with the arbitrary described relief valve of claim 1-7 comprises contact pin, dropping funnel, tube for transfusion, by-pass cock, entry needle;
In described dropping funnel, be provided with the pan that is used for filtering blood;
It is characterized in that:
Described relief valve is arranged in the described dropping funnel, and is positioned at described pan below, and the longitudinal center line of described relief valve and the longitudinal center line of described tube for transfusion coincide, and the flexible glue base of described relief valve seals the infusion hole of described dropping funnel bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206524949U CN201880140U (en) | 2010-12-10 | 2010-12-10 | Safety valve and blood transfusion device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206524949U CN201880140U (en) | 2010-12-10 | 2010-12-10 | Safety valve and blood transfusion device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201880140U true CN201880140U (en) | 2011-06-29 |
Family
ID=44177663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206524949U Expired - Lifetime CN201880140U (en) | 2010-12-10 | 2010-12-10 | Safety valve and blood transfusion device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201880140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008771A (en) * | 2010-12-10 | 2011-04-13 | 汪贤宗 | Safety valve and blood transfusion device with same |
| CN103007397A (en) * | 2012-08-13 | 2013-04-03 | 郑万章 | Drip device for transfusion and infusion sets |
-
2010
- 2010-12-10 CN CN2010206524949U patent/CN201880140U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008771A (en) * | 2010-12-10 | 2011-04-13 | 汪贤宗 | Safety valve and blood transfusion device with same |
| CN102008771B (en) * | 2010-12-10 | 2013-07-31 | 汪贤宗 | Safety valve and blood transfusion device with same |
| CN103007397A (en) * | 2012-08-13 | 2013-04-03 | 郑万章 | Drip device for transfusion and infusion sets |
| CN103007397B (en) * | 2012-08-13 | 2014-05-14 | 郑万章 | Drip device for transfusion and infusion sets |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201668789U (en) | Automatic liquid-stop infusion set with safety mechanism | |
| CN206621614U (en) | A kind of transfusion connector and infusion pipeline and transfusion device provided with the transfusion connector | |
| CN202605452U (en) | Automatic exhausting and liquid-stopping transfusion set | |
| CN201880140U (en) | Safety valve and blood transfusion device with same | |
| CN201643243U (en) | Safety valve and liquid-blood transfusion device provided with same | |
| CN102008771B (en) | Safety valve and blood transfusion device with same | |
| CN204275157U (en) | Safe burette type transfusion apparatus | |
| CN204147347U (en) | Single use safety type blood exchange transfusion set | |
| CN101954132A (en) | Exhaust device for blood-returning preventive infusion device | |
| CN204379885U (en) | A kind of Multifunctional safety transfusion system | |
| CN203090066U (en) | Field drip stand with warning function | |
| CN203677542U (en) | Medicine extracting filter | |
| CN201855464U (en) | Exhaust device used for infusion device with blood return prevention function | |
| CN201744018U (en) | Puncture outfit for dripping-off-proof infusion set | |
| CN201105066Y (en) | Burette type transfusion utensil capable of being automatically closed | |
| CN201832284U (en) | Safety valve and infusion and blood transfusion device provided with same | |
| CN202191529U (en) | Self-exhaustion liquid-limited infusion apparatus capable of storing liquid | |
| CN206350847U (en) | A kind of hold-down button resistant to blood of elastic force floating backflows intravenous transfusion device | |
| CN215134689U (en) | Anti-return infusion needle tube | |
| CN104491949A (en) | Multifunctional safe infusion device and safe infusion method | |
| CN201026332Y (en) | Non-return infusion tube | |
| CN203749929U (en) | Venous transfusion dropper and venous transfusion device with the same | |
| CN203885919U (en) | Infusion set drip cup device capable of automatically filling liquid medicine | |
| CN202096527U (en) | Disposable transfusion apparatus with floater plug | |
| CN216536410U (en) | Automatic closing infusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110629 Effective date of abandoning: 20130821 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110629 Effective date of abandoning: 20130821 |
|
| RGAV | Abandon patent right to avoid regrant |