CN108159559A - Anti-reflux infusion dosing three-way device - Google Patents
Anti-reflux infusion dosing three-way device Download PDFInfo
- Publication number
- CN108159559A CN108159559A CN201810035475.2A CN201810035475A CN108159559A CN 108159559 A CN108159559 A CN 108159559A CN 201810035475 A CN201810035475 A CN 201810035475A CN 108159559 A CN108159559 A CN 108159559A
- Authority
- CN
- China
- Prior art keywords
- triple
- valve body
- elastic tube
- connecting seat
- check elastic
- 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.)
- Pending
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 28
- 230000000151 anti-reflux effect Effects 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000010992 reflux Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M2039/0205—Access sites for injecting media
Abstract
A kind of Anti-reflux infusion dosing three-way device, including triple-valve body, at the both ends of the triple-valve body as inlet, the interface in the middle part of the triple-valve body is liquid outlet；Non-return mechanism is housed in triple-valve body.The non-return mechanism includes check elastic tube and connection sheet, the connection sheet is mounted on the middle part in triple-valve body with being slidably matched, the one end of the both ends of the connection sheet respectively with a check elastic tube is connect, the other end closing of each check elastic tube, and is offseted with the inner end of connecting seat；There are gaps between the check elastic tube and the inner wall of triple-valve body.Advantage is：Each inlet can be connect with a syringe, during any one syringe injection liquid, can be automatically opened an infusion set pattern by compressing the blind end of relevant check elastic tube, without carrying out any switching manipulation, avoid and accidentally grasp；The phenomenon that being not in leakage, overflow, reflux when in use, it can ensure infusion and the safety injected and aspirated conducted in infusion process well.
Description
Technical field
The present invention relates to a kind of Anti-reflux infusion dosing three-way devices, belong to medical instruments field.
Background technology
The one-way non-return effect of existing infusion tee device is poor, needs switch that could carry out non-return, connects when in use
Hose is not easy Operation switch, the phenomenon that leakage, overflow, reflux occurs, there are security risks during infusion or dosing.
Invention content
The defects of to overcome the prior art, the present invention provide a kind of Anti-reflux infusion dosing three-way device.
The technical scheme is that：A kind of Anti-reflux infusion dosing three-way device, which is characterized in that including triple valve
Body at the both ends of the triple-valve body as inlet, is respectively arranged with to be connected with syringe outlet on the inlet
Bending connecting seat；Interface in the middle part of the triple-valve body is liquid outlet, and equipped with hose connecting seat；Equipped with only in the triple-valve body
Go back to mechanism.
The non-return mechanism includes check elastic tube and connection sheet, and the connection sheet is mounted on threeway with being slidably matched
Middle part in valve body, the one end of the both ends of the connection sheet respectively with a check elastic tube are connect, each check elastic tube it is another
One end is closed, and the inner end as spool and the connecting seat offsets；In the check elastic tube and the triple-valve body
There are gaps between inner wall.
The middle part of the connection sheet is disc, and the inner wall of peripheral surface and the triple-valve body is to be slidably matched；
Undergauge pillar is equipped at the both ends of the disc, one end of the opening of the check elastic tube is sleeved on the undergauge pillar.
The tube wall of the check elastic tube is arc-shaped to periphery or triangle arches upward；The blind end of the check elastic tube
For cylinder, the diameter at tube wall both ends is had a diameter larger than.
The connecting seat is L-shaped.
The connecting seat is short straight line connecting seat, coaxial with the triple-valve body.
The connecting seat is long straight line connecting seat, coaxial with the triple-valve body.
The triple-valve body is made of transparent material；The check elastic tube is made of medical grade rubber.
It is an advantage of the invention that：Can be with used aloned, also can be multiple used in parallel, each inlet can be with an injection
Device connects, and during any one syringe injection liquid, can be automatically opened by compressing the blind end of relevant check elastic tube
One infusion set pattern, without carrying out any switching manipulation, avoids and accidentally grasps；Be not in leakage, overflow, reflux when in use
Phenomenon can ensure infusion and the safety injected and aspirated conducted in infusion process well.
Description of the drawings
Fig. 1 is the overall structure front view of first embodiment of the invention；
Fig. 2 is a left side of Fig. 1（It is right）View；
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is the explosive view of a upper embodiment；
Fig. 5 is the sectional structure front view of second embodiment of the invention；
Fig. 6 is the sectional structure front view of third embodiment of the invention；
Fig. 7 is the application example schematic diagram of the present invention.
Specific embodiment
The invention will now be further described with reference to specific embodiments, the advantages and features of the present invention will be with description and
It is apparent.But these embodiments are only exemplary, do not form any restrictions to the scope of the present invention.People in the art
Member it should be understood that without departing from the spirit and scope of the invention can to the details of technical solution of the present invention and form into
Row modifications or substitutions, but these modifications and replacement are each fallen in protection scope of the present invention.
Referring to Fig. 1 ~ Fig. 6, a kind of essential structure of Anti-reflux infusion dosing three-way device of the present invention includes triple-valve body 1,
At the both ends of the triple-valve body 1 as inlet, the company for being connected with syringe outlet is respectively arranged on the inlet
Joint chair 2；The port at 1 middle part of triple-valve body is liquid outlet, and equipped with hose connecting seat 5；Non-return is housed in the triple-valve body 1
Mechanism.
The triple-valve body 1 is threadedly coupled with being used between connecting seat 2 and hose connecting seat 5（Packing can be encrypted）, binding agent
Bonding, heat seal connection or interference connection.
The non-return mechanism includes two check elastic tubes 3 and a connection sheet 4, and the connection sheet 4 is slidably matched
Ground is mounted on the middle part in triple-valve body 1, and one end that the both ends of the connection sheet 4 are open respectively with a check elastic tube 3 is socketed, often
The other end closing of the one check elastic tube 3, the blind end of the check elastic tube 3 is as spool（The opening and closing element of valve）With it is described
Connecting seat 2 inner end（It is equivalent to valve seat）It offsets；It is stayed between the inner wall of the check elastic tube 3 and the triple-valve body 1
There is gap.In stationary state, the inner end of the blind ends of two check elastic tubes 3 with connecting seat 2 offsets, and closes the threeway
Two inlets of device.
The triple-valve body 1 uses transparent material（Such as transparent plastic）It is made；The check elastic tube is by medical rubber
Glue is made.
The middle part of the connection sheet 4 is disc 41, and the inner wall of peripheral surface and the triple-valve body 1 is matched to slide
It closes；Undergauge pillar 42 is equipped at the both ends of the disc 41, it is convex that one end of the opening of the check elastic tube 3 is sleeved on the undergauge
On column 42.
The tube wall 32 of the check elastic tube 3 is arc-shaped to periphery（Or triangle）It arches upward；The check elastic tube 3
Blind end 31 is cylinder, and the diameter of cylinder is more than the diameter at 32 both ends of tube wall（Substantially the outer diameter phase to arch upward with tube wall 32
Deng）.It is axially retractable that the tube wall 32 that arches upward is conducive to its.
As Figure 1-Figure 4, the both ends connecting seat 2 of triple-valve body 1 is L-shaped to first embodiment of the invention, and interface can be with
The outlet of syringe is mating.
The short straight line connecting seat of second embodiment shown in fig. 5 can also be used in the connecting seat 2 of the present invention, with triple-valve body 1
It is coaxial.The interface of short straight line connecting seat is mainly used for docking with connecting tube, can not be mating with the outlet of syringe.
The long straight line connecting seat of 3rd embodiment shown in fig. 6 can also be used in the connecting seat 2 of the present invention（Interface can be with injection
The outlet of device is mating）, it is coaxial with triple-valve body 1.Another connecting seat 2 in the embodiment is the L-shaped in first embodiment
Connecting seat.
The connecting seat 2 of three kinds of structures in above three embodiments can be in any combination.
As shown in fig. 7, be the application example of three three-way device A1, A2, A3 of the present invention, first three-way device A1's above
Liquid outlet is connect by hose 7 with transfusion needle 6, two inlets of three-way device A1（Connecting seat 2）Respectively with other two threeway
Device A2 and A3 liquid outlet（Hose connecting seat 5）It is connected by hose 7；Four inlets of two three-way devices A2 and A3 are simultaneously with four
The injection port docking of a syringe 8-11, in actual use, four syringes can inject dosing simultaneously, can also inject respectively
Dosing, when any one syringe（Referring to Fig. 6 and Fig. 7）During dosing, the pressure of syringe output is applied to the inlet of left end
The blind end of interior check elastic tube 3, i.e., inwardly（It is right）The blind end of check elastic tube 3 is compressed, and is connected away from left end
The seat gap of 2 inner end one, so successively between 3 blind end of the inlet of left end, 2 inner end of left end connecting seat and check elastic tube
Gap between 1 inner wall of gap, check elastic tube 3 and triple-valve body is to forming an infusion channel between liquid outlet（Such as band in Fig. 6
Shown in the dotted line 12 of arrow）, complete a kind of input of liquid.The dosing principle of other three syringes is identical, not dosing into
Liquid mouth is due to the phenomenon that not having inward pressure, being closed, will not generate liquid water conservancy diversion.The dosing of multiple inlets
Not the phenomenon that journey does not need to carry out any operation to three-way device, is less prone to operating mistake, liquid leakage, liquid reflux.It is and common
Three-way device needs rotating switch when in use, in multiple combinations, the problem of being susceptible to not easy to operate or maloperation.
For the present invention in both sides dosing simultaneously, connection sheet 4 does not generate displacement substantially, and two 3 blind ends of check elastic tube are equal
Forced compression, the inlet at both ends generate medicine liquid channel with the liquid outlet of threeway body 1.
Since check elastic tube 3 is in the state of pressure is not affected by, medicine liquid channel is in off state, if liquid is from liquid outlet
It is redirected back into, its axial expansion can be made to the tube wall radial compression of check elastic tube 3, push the interior of its blind end and connecting seat 2
End is closed even closer, and pressure is bigger, and leakproofness is better, so liquid will not reversely flow out.
The present invention can also be aspirated in liquid outlet, and liquid is entered by the inlet at both ends.Liquid is to both ends check elasticity
Pipe 3 presses, and forms medicine liquid channel, completes suction.
Present invention may apply to various medical treatment situations liquid infusion or dosing, especially with it is now widely used general
Logical infusion apparatus is used in combination, and can not only complete common transfusion, and can make liquid one-way flowing when in use, prevent venous blood
It flows back into infusion apparatus, particularly the infusion to emergency and severe disease sufferer, significant effect, and multiple and different liquids can be coupled simultaneously
Dosing injection treated.
Claims (8)
1. a kind of Anti-reflux infusion dosing three-way device, which is characterized in that including triple-valve body, make at the both ends of the triple-valve body
For inlet, connecting seat is respectively arranged on the inlet；Interface in the middle part of the triple-valve body is liquid outlet, and is connected equipped with hose
Seat；Non-return mechanism is housed in the triple-valve body.
2. Anti-reflux infusion dosing three-way device according to claim 1, which is characterized in that the non-return mechanism includes
Check elastic tube and connection sheet, the connection sheet be slidably matched be mounted on triple-valve body in middle part, the two of the connection sheet
One end respectively with a check elastic tube is held connect, the other end closing of each check elastic tube, and conduct spool with it is described
The inner end of connecting seat offset；There are gaps between the check elastic tube and the inner wall of the triple-valve body.
3. Anti-reflux infusion dosing three-way device according to claim 2, which is characterized in that the middle part of the connection sheet
For disc, the inner wall of peripheral surface and the triple-valve body is to be slidably matched；It is convex that undergauge is equipped at the both ends of the disc
Column, one end of the opening of the check elastic tube are sleeved on the undergauge pillar.
4. Anti-reflux infusion dosing three-way device according to claim 2, which is characterized in that the check elastic tube
Tube wall is arc-shaped to periphery or triangle arches upward；The blind end of the check elastic tube is cylinder, has a diameter larger than tube wall two
The diameter at end.
5. Anti-reflux infusion dosing three-way device according to claim 1, which is characterized in that the connecting seat is L-shaped.
6. Anti-reflux infusion dosing three-way device according to claim 1, which is characterized in that the connecting seat is short straight
Line connecting seat, it is coaxial with the triple-valve body.
7. Anti-reflux infusion dosing three-way device according to claim 1, which is characterized in that the connecting seat is long straight
Line connecting seat, it is coaxial with the triple-valve body.
8. Anti-reflux infusion dosing three-way device according to claim 1, which is characterized in that the triple-valve body uses
Transparent material is made；The check elastic tube is made of medical grade rubber.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035475.2A CN108159559A (en) | 2018-01-15 | 2018-01-15 | Anti-reflux infusion dosing three-way device |
| US16/961,928 US20200338261A1 (en) | 2018-01-15 | 2018-01-26 | Three-way device for anti-backflow infusion and dosing |
| PCT/CN2018/074366 WO2019136779A1 (en) | 2018-01-15 | 2018-01-26 | Three-way device for anti-backflow infusion and dosing |
| EP18900547.3A EP3741422A4 (en) | 2018-01-15 | 2018-01-26 | Three-way device for anti-backflow infusion and dosing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035475.2A CN108159559A (en) | 2018-01-15 | 2018-01-15 | Anti-reflux infusion dosing three-way device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108159559A true CN108159559A (en) | 2018-06-15 |
Family
ID=62514347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810035475.2A Pending CN108159559A (en) | 2018-01-15 | 2018-01-15 | Anti-reflux infusion dosing three-way device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108159559A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825895A (en) * | 2018-07-25 | 2018-11-16 | 厚力德机器（杭州）有限公司 | A kind of pipeline vacuum non-return drainage skew T valve |
| CN108825895B (en) * | 2018-07-25 | 2024-05-03 | 厚力德机器（杭州）有限公司 | Pipeline vacuum non-return drainage inclined three-way valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070272311A1 (en) * | 2006-05-24 | 2007-11-29 | Mark Trocki | Valve systems and injector system including such valve systems |
| CN203458595U (en) * | 2013-07-17 | 2014-03-05 | 魏颖德 | Safety multifunctional injection-feeding interface |
| CN204734799U (en) * | 2015-06-25 | 2015-11-04 | 上海上医康鸽医用器材有限责任公司 | Needleless infusion prevents that needle is kept somewhere to vein against current |
| CN204766842U (en) * | 2015-06-25 | 2015-11-18 | 上海上医康鸽医用器材有限责任公司 | Needleless infusion prevents that needle is kept somewhere to vein against current |
| CN208591456U (en) * | 2018-01-15 | 2019-03-12 | 上海柯安憬国际贸易有限公司 | Anti-reflux infusion dosing three-way device |
-
2018
- 2018-01-15 CN CN201810035475.2A patent/CN108159559A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070272311A1 (en) * | 2006-05-24 | 2007-11-29 | Mark Trocki | Valve systems and injector system including such valve systems |
| CN203458595U (en) * | 2013-07-17 | 2014-03-05 | 魏颖德 | Safety multifunctional injection-feeding interface |
| CN204734799U (en) * | 2015-06-25 | 2015-11-04 | 上海上医康鸽医用器材有限责任公司 | Needleless infusion prevents that needle is kept somewhere to vein against current |
| CN204766842U (en) * | 2015-06-25 | 2015-11-18 | 上海上医康鸽医用器材有限责任公司 | Needleless infusion prevents that needle is kept somewhere to vein against current |
| CN208591456U (en) * | 2018-01-15 | 2019-03-12 | 上海柯安憬国际贸易有限公司 | Anti-reflux infusion dosing three-way device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825895A (en) * | 2018-07-25 | 2018-11-16 | 厚力德机器（杭州）有限公司 | A kind of pipeline vacuum non-return drainage skew T valve |
| CN108825895B (en) * | 2018-07-25 | 2024-05-03 | 厚力德机器（杭州）有限公司 | Pipeline vacuum non-return drainage inclined three-way valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5507564B2 (en) | Closed male luer device to minimize fluid leakage during connection and disconnection | |
| WO2014161410A1 (en) | Needleless positive pressure connector | |
| JP2012501742A5 (en) | ||
| CN208591456U (en) | Anti-reflux infusion dosing three-way device | |
| WO2019136779A1 (en) | Three-way device for anti-backflow infusion and dosing | |
| CN110215387A (en) | A kind of Improvement type tank washes syringe | |
| CN201500301U (en) | Dispensing device used for nursing | |
| CN108159559A (en) | Anti-reflux infusion dosing three-way device | |
| CN206566293U (en) | Safe fluid path switches Dual-head infusion device | |
| CN204745164U (en) | From size bag -type infusion device | |
| CN201862043U (en) | Multi-layer composite light shading transfusion device | |
| CN206499709U (en) | Disposable TPE precision filter infusion sets | |
| CN203989252U (en) | Dual-plug transfusion device | |
| CN104666080A (en) | Sealed type peritoneal dialysis solution double-bag system | |
| CN204158808U (en) | A kind of high pressure remaining needle | |
| CN204543104U (en) | Flexible-package liquid medicine injection device | |
| CN208710683U (en) | The bottled dosage form of perhexiline injection | |
| CN201006088Y (en) | Multi-purpose disposable transfusion system | |
| CN205252202U (en) | Dedicated transfusion device for chemotherapy | |
| CN201939775U (en) | High-pressure injection system for enhancing CT examination | |
| CN106456960A (en) | Device for connecting medical disposable articles in a sterile manner | |
| CN201147543Y (en) | Double-mouth intravenous injection filter | |
| CN205360221U (en) | Isobaric tube clipper of constant volume of two -chamber PICC pipe | |
| CN204158726U (en) | Reusable imbibition and fluid injection pipeline and its assembly | |
| CN103565642A (en) | Large liquid dispensing needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |