CN201061640Y - Non-needle enclosed transfusion joint - Google Patents
Non-needle enclosed transfusion joint Download PDFInfo
- Publication number
- CN201061640Y CN201061640Y CNU2007201701108U CN200720170110U CN201061640Y CN 201061640 Y CN201061640 Y CN 201061640Y CN U2007201701108 U CNU2007201701108 U CN U2007201701108U CN 200720170110 U CN200720170110 U CN 200720170110U CN 201061640 Y CN201061640 Y CN 201061640Y
- Authority
- CN
- China
- Prior art keywords
- shaped pipe
- movable core
- tube
- slide core
- gland
- 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 - Fee Related
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000741 silica gel Substances 0.000 claims abstract description 11
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000000295 complement effect Effects 0.000 claims description 5
- 239000012567 medical material Substances 0.000 claims description 3
- 231100000956 nontoxicity Toxicity 0.000 claims description 3
- 238000001802 infusion Methods 0.000 abstract description 26
- 239000008280 blood Substances 0.000 abstract description 9
- 210000004369 blood Anatomy 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 239000002244 precipitate Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009987 spinning Methods 0.000 description 3
- 208000005189 Embolism Diseases 0.000 description 2
- 208000001435 Thromboembolism Diseases 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000003978 infusion fluid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001373 regressive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a needleless sealed transfusion mouthpiece, including a T-shaped tube, a movable core, an elastic element and a gland. The diameter of the upper section of the movable core is smaller than that of the lower section of the movable core, a perpendicular tube of the T-shaped tube is sleeved on and matches with the outer portion of the movable core, the elastic element is positioned on the lower portion of the movable core which is placed inside the T-shaped tube and the gland is buttoned on the lower port of the perpendicular tube of the T-shaped tube. A horizontal tube of the T-shaped tube employs the design of 6 to 100 medical taper, reinforcing the sealing effect of the connection portion of the horizontal tube of the T-shaped tube and the injector and effectively avoiding leakage. The elastic element is capable of employing silica gel materials as power source, and because the structure is capable of separating the portion inside the mouthpiece from outside, fluid infusion is guaranteed not to be polluted, furthermore, silica gel materials are stable and do not produce pollution of precipitates to the fluid. The design of the movable core of the utility model enables the movable core to produce positive pressure when the movable core moves, effectively preventing blood backflow, and the utility model is simple in structure, convenient in producing and processing and low in cost, and has a good promotion value.
Description
Technical field
This utility model relates to a kind of infusion connector, specifically a kind ofly is used for medical aspect, but moment produce malleation, and can prevent the Needleless seal transfusion joint of venous return.
Background technology
Infusion connector belongs to medical apparatus and instruments, when the patient repeatedly infuses, can use inlying catheter usually, and inlying catheter generally is to enter in the blood circulation of human body, liquid or medicine that this infusion method can allow the very fast absorption of human body import.The connected mode of existing inlying catheter and infusion set generally has two kinds, be respectively that pin infusion model and needleless infusion model are arranged, there is pin infusion model requirement inlying catheter to have the injection joint of puncture silica gel window, the syringe needle that is connected infusion set during transfusion inserts the silica gel window and can infuse, but in the process of repeatedly puncture, sharp transfusion needle point cutting silica gel can be taken chip out of, pollutes medicinal liquid, and the patient is caused potential safety hazard.The needleless infusion model is not owing to there is syringe needle to have its safety, replace having the pin infusion model gradually, the general joint of infusion set that adopts of existing needleless infusion model transfusion is connected with inlying catheter, but finish when pulling down infusion connector when infusing, because the effect of negative pressure can make blood be back in the inlying catheter, immobilising blood is easy to generate and solidifies, and blood coagulation can cause the obstruction of inlying catheter, and next time, transfusion just can't be carried out again.
At present, there is the people to propose the needleless infusion connector of band malleation in order to remedy above-mentioned defective.The needleless infusion connector of existing band malleation adopts metal spring as regressive power, and communicate in this part the space and the external world of spring, sealing between itself and the infusion channel is to adopt sealing ring, moving up and down in the application of reality owing to sealing ring, be difficult to avoid bringing external pollution into cause infusion liquid in the infusion channel pollution, there is certain harm in the patient.
In sum, present domestic urgent need is a kind of to prevent venous return, safety and sanitation, simple to operation and can effectively avoid the Needleless seal transfusion joint of the phenomenon of leakage in the infusion process.
The utility model content
The purpose of this utility model has been the solution the deficiencies in the prior art, but and propose a kind of moment and produce malleation and prevent that blood from refluxing, and in infusion process the comparable safe Needleless seal transfusion joint of avoiding the phenomenon of leakage to take place.
To achieve these goals, this utility model adopts following technical scheme:
A kind of Needleless seal transfusion joint, it comprises "T"-shaped pipe, slide core, elastic component and gland; Described slide core epimere diameter is less than the hypomere diameter, described "T"-shaped pipe vertical tube be sheathed on this slide core outside and its two be complementary; Described "T"-shaped pipe horizontal tube is arranged at slide core hypomere position; Described elastic component is positioned at the slide core below of "T"-shaped pipe; Described gland button is located at "T"-shaped pipe vertical tube lower port.
Above-mentioned a kind of Needleless seal transfusion joint wherein, is equipped with sealing ring between described slide core epimere and the "T"-shaped pipe.And its upper end end face is domatic structure, and best angle is horizontal by 30 degree angles.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described elastic component is a cap-like structure, described gland is provided with through hole.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, the upper orifice outer wall of described "T"-shaped pipe vertical tube is provided with screw thread, and above-mentioned "T"-shaped pipe horizontal tube is 6: 100 a medical tapering.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described elastic component and sealing ring are made for the silica gel material.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described "T"-shaped pipe and gland are made for the no-toxicity medical material.
Needleless seal transfusion joint described in the utility model in use, syringe or infusion connector be connected with this utility model closed transfusion adaptor or when spinning its end press down, slide core is subjected to downward pressure and moves down, and then elastic component compression, because gland is provided with through hole, elastic component is again a cap-like structure, and inner air is discharged by the through hole on the gland in the time of its compression.End face is a domatic on the slide core, offsets with syringe end, and the medicinal liquid in the syringe can be flowed out smoothly, again because slide core epimere diameter less than the hypomere diameter, "T"-shaped pipe vertical tube be sheathed on slide core outside and its two be complementary; So when the slide core epimere presses to "T"-shaped pipe vertical tube hypomere, because the diameter difference forms a fluid passage and is communicated with "T"-shaped pipe horizontal tube, horizontal tube is connected with tube for transfusion and syringe needle, and at this moment the medicinal liquid in the syringe flows in patient's body from fluid passage inflow horizontal tube and by tube for transfusion and syringe needle.After finishing, transfusion extracts syringe or infusion connector, elastic component since himself elastic effect move upward, because sealing ring and "T"-shaped pipe that the slide core ring is established contact, at this moment the liquid pressurized between slide core top and the "T"-shaped pipe can continue to flow out to tube for transfusion by the horizontal tube of "T"-shaped pipe, form theoretic malleation, having prevented like this that blood is back to causes the blood thromboembolism in the tube for transfusion, play the effect of malleation discharge opeing.
Advantage of the present utility model and beneficial effect:
Needleless seal transfusion joint described in the utility model adopts the infusion model of needleless, avoided syringe needle cutting silica gel and bring the hidden danger of debris contamination medicinal liquid, and medical worker's attended operation is convenient and swift."T"-shaped pipe horizontal tube adopts 6: 100 medical taper design, can both be supporting with existing transfusion jointing, strengthened the sealing effectiveness with connecting portion such as syringe, and effectively avoided the generation of the phenomenon of leakage, make operation safe.Elastic component can adopt silica gel material as power source and since this structure can will joint the inside and extraneous the isolation, guarantee that infusion liquid can be not contaminated, the stability of material of the silica gel pollution that can not produce precipitate in addition to liquid.The design of this utility model slide core makes it produce malleation when motion, has effectively prevented the backflow of blood.Of the present utility model simple in structure, the production and processing facility, with low cost, excellent generalization values is arranged.
Below in conjunction with accompanying drawing and preferred forms this utility model being described further, so that the public has whole and understanding fully to summary of the invention, and is not the qualification to this utility model protection domain.Aforementioned part fully discloses the protection domain that this utility model can be implemented, and therefore allly any well known in the artly is equal to replacement according to what this utility model disclosure was carried out, all belongs to infringement of the present utility model.
Description of drawings
Fig. 1 closes structural representation for this utility model;
Fig. 2 is this utility model user mode sketch map.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of Needleless seal transfusion joint, it comprises "T"-shaped pipe 1, slide core 2, elastic component 3 and gland 4; Described slide core 2 epimere diameters are less than the hypomere diameter, the vertical tube of described "T"-shaped pipe 1 be sheathed on this slide core 2 outside and its two be complementary; Described elastic component 3 is positioned at slide core 2 belows of "T"-shaped pipe 1; Described gland 4 buttons are located at the vertical tube lower port of "T"-shaped pipe 1.
Be equipped with sealing ring 5 between above-mentioned slide core 2 epimeres and the "T"-shaped pipe 1, and end face is domatic structure on it, angle is horizontal by 30 degree angles.
Above-mentioned elastic component 3 is a cap-like structure, and described gland 4 is provided with through hole 41.
The upper orifice outer wall of the vertical tube of above-mentioned "T"-shaped pipe 1 is provided with screw thread 11, and the horizontal tube of "T"-shaped pipe 1 is 6: 100 medical taperings.
Above-mentioned elastic component 3 and sealing ring 5 are made for the silica gel material, and "T"-shaped pipe 1 and gland 4 are made for the no-toxicity medical material.
Needleless seal transfusion joint described in the utility model in use, syringe or infusion connector be connected with this utility model closed transfusion adaptor or when spinning (spinning) by screw thread 11 syringe or infusion connector end 6 press down, slide core 2 is subjected to downward pressure and moves down, and then elastic component 3 compressions, because gland 4 is provided with through hole 41, elastic component 3 is again a cap-like structure, and inner air is discharged by the through hole on the gland 4 41 in the time of its compression.End face is a domatic on the slide core 2, offsets with syringe end, and the medicinal liquid in the syringe can be flowed out smoothly, again because slide core 2 epimere diameters less than the hypomere diameter, the vertical tube of "T"-shaped pipe 1 be sheathed on slide core 2 outside and its two be complementary; So when slide core 2 epimeres press to the vertical tube hypomere of "T"-shaped pipe 1, because the diameter difference forms a fluid passage (as the direction of arrow among the figure) and is communicated with the horizontal tube of "T"-shaped pipe 1, horizontal tube is connected with tube for transfusion and syringe needle, and at this moment the medicinal liquid in the syringe flows in patient's body from fluid passage inflow horizontal tube and by tube for transfusion and syringe needle.After finishing, transfusion extracts syringe or infusion connector, elastic component 3 since himself elastic effect move upward, because sealing ring 5 and "T"-shaped pipe 1 that slide core 2 rings are established contact, at this moment the liquid pressurized between slide core 3 tops and the "T"-shaped pipe 1 can continue to flow out to tube for transfusion by the horizontal tube of "T"-shaped pipe 1, form theoretic malleation, having prevented like this that blood is back to causes the blood thromboembolism in the tube for transfusion, play the effect of malleation discharge opeing.
Claims (9)
1. a Needleless seal transfusion joint is characterized in that, it comprises "T"-shaped pipe, slide core, elastic component and gland; Described slide core epimere diameter is less than the hypomere diameter, described "T"-shaped pipe vertical tube be sheathed on this slide core outside and its two be complementary; Described elastic component is positioned at the slide core below of "T"-shaped pipe; Described gland button is located at "T"-shaped pipe vertical tube lower port.
2. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, is equipped with sealing ring between described slide core epimere and the "T"-shaped pipe.
3. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, described slide core upper end end face is domatic structure.
4. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, described elastic component is a cap-like structure.
5. a kind of Needleless seal transfusion joint according to claim 4 is characterized in that described gland is provided with through hole.
6. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, the upper orifice outer wall of described "T"-shaped pipe vertical tube is provided with screw thread.
7. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, described "T"-shaped pipe horizontal tube is 6: 100 a medical tapering.
8. according to any described a kind of Needleless seal transfusion joint in the claim 1 to 7, it is characterized in that described elastic component and sealing ring are made for the silica gel material.
9. according to any described a kind of Needleless seal transfusion joint in the claim 1 to 7, it is characterized in that described "T"-shaped pipe and gland are made for the no-toxicity medical material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201701108U CN201061640Y (en) | 2007-08-08 | 2007-08-08 | Non-needle enclosed transfusion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201701108U CN201061640Y (en) | 2007-08-08 | 2007-08-08 | Non-needle enclosed transfusion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201061640Y true CN201061640Y (en) | 2008-05-21 |
Family
ID=39450009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201701108U Expired - Fee Related CN201061640Y (en) | 2007-08-08 | 2007-08-08 | Non-needle enclosed transfusion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201061640Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961514A (en) * | 2010-10-29 | 2011-02-02 | 李丹青 | Integrated bacteria-proof needle-less airtight infusion joint |
| CN103418048A (en) * | 2012-05-24 | 2013-12-04 | 美昕医疗器械（上海）有限公司 | Needle-free joint |
| CN103599577A (en) * | 2013-12-03 | 2014-02-26 | 上海康德莱企业发展集团医疗器械有限公司 | Needleless medication addition infusion positive pressure connector |
| CN103957985A (en) * | 2011-10-06 | 2014-07-30 | 贝克顿·迪金森公司 | Intravenous catheter with duckbill valve |
| CN104491950A (en) * | 2014-12-29 | 2015-04-08 | 安徽亿维医疗用品有限公司 | Needleless bottle plug puncturing apparatus for infusion apparatus |
| CN106479876A (en) * | 2016-12-09 | 2017-03-08 | 广州品知医疗器械有限公司 | The installation method of a kind of adapter, transfer device and this transfer device and using method |
-
2007
- 2007-08-08 CN CNU2007201701108U patent/CN201061640Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961514A (en) * | 2010-10-29 | 2011-02-02 | 李丹青 | Integrated bacteria-proof needle-less airtight infusion joint |
| CN101961514B (en) * | 2010-10-29 | 2012-08-22 | 李丹青 | Integrated bacteria-proof needle-less airtight infusion joint |
| CN103957985A (en) * | 2011-10-06 | 2014-07-30 | 贝克顿·迪金森公司 | Intravenous catheter with duckbill valve |
| CN103957985B (en) * | 2011-10-06 | 2016-10-19 | 贝克顿·迪金森公司 | Intravenous catheter with duckbill valve |
| CN103418048A (en) * | 2012-05-24 | 2013-12-04 | 美昕医疗器械（上海）有限公司 | Needle-free joint |
| CN103418048B (en) * | 2012-05-24 | 2015-08-19 | 美昕医疗器械（上海）有限公司 | Needleless joint |
| CN103599577A (en) * | 2013-12-03 | 2014-02-26 | 上海康德莱企业发展集团医疗器械有限公司 | Needleless medication addition infusion positive pressure connector |
| WO2015081802A1 (en) * | 2013-12-03 | 2015-06-11 | 上海康德莱企业发展集团医疗器械有限公司 | Needle-less dosing infusion positive pressure connector |
| CN104491950A (en) * | 2014-12-29 | 2015-04-08 | 安徽亿维医疗用品有限公司 | Needleless bottle plug puncturing apparatus for infusion apparatus |
| CN106479876A (en) * | 2016-12-09 | 2017-03-08 | 广州品知医疗器械有限公司 | The installation method of a kind of adapter, transfer device and this transfer device and using method |
| CN106479876B (en) * | 2016-12-09 | 2019-08-30 | 广州品知医疗器械有限公司 | The installation method and application method of a kind of connector, transfer device and the transfer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20110808 |