CN108744265A - Closed positive pressure connector - Google Patents
Closed positive pressure connector Download PDFInfo
- Publication number
- CN108744265A CN108744265A CN201810510583.0A CN201810510583A CN108744265A CN 108744265 A CN108744265 A CN 108744265A CN 201810510583 A CN201810510583 A CN 201810510583A CN 108744265 A CN108744265 A CN 108744265A
- Authority
- CN
- China
- Prior art keywords
- fixed column
- spool
- liquid channel
- inner cavity
- pedestal
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 239000003814 drug Substances 0.000 claims abstract description 41
- 238000001802 infusion Methods 0.000 claims abstract description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 11
- 230000013011 mating Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 241000894006 Bacteria Species 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000004568 cement Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 239000002699 waste material Substances 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
- A61M39/10—Tube connectors; Tube couplings
- A61M39/14—Tube connectors; Tube couplings for connecting tubes having sealed ends
-
- 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
- A61M39/10—Tube connectors; Tube couplings
-
- 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
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
-
- 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
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
- A61M2039/2433—Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of closed positive pressure connectors, it include the valve body with hollow cavity, reset body and spool, the inner cavity includes medicine liquid channel, it is upper interface end at the top of the inner cavity, the bottom of the inner cavity is equipped with lower interface end, the medicine liquid channel is connected to the lower interface end, the reset body is fixed on the inner cavity, the spool is supported on the inner cavity by the reset body elasticity and closes the upper interface end, the spool has the normally closed sealing slit of elasticity, the sealing slit is located at the top of the medicine liquid channel, the spool has original state and transfusion state, in the original state, the sealing slit is closed；In the transfusion state, the sealing slit is opened, and infusion connector can enter the inner cavity from the sealing slit and is connected to the medicine liquid channel.By the way that normally closed sealing slit is arranged, liquid can be effectively prevent to spill, stop that bacterium or dust enter medicine liquid channel and cause liquid medicine contamination.
Description
Technical field
The present invention relates to medical instruments fields, especially with respect to a kind of closed positive pressure connector.
Background technology
Entitled " medical Needleless barotropic connector ", notification number are that the Chinese utility model patent of CN202605411U discloses one
Kind medical Needleless barotropic connector, when infusion, infusion apparatus joint supports the upper surface of spool, and spool is pushed, when spool and reset
When spring is located at lower limit position, infusion apparatus joint is connected to clearance cavity and can be infused, defeated after the completion of primary infusion
Liquid device connector will be removed from medical Needleless barotropic connector upwards, however, in the process, resetting spring will pass through spool
Apply larger upward power to infusion apparatus joint, at this point, infusion apparatus joint of not holding with a firm grip, infusion apparatus connect if operator neglects
Head is easy to directly be popped up by spool, and the remaining liquid in infusion apparatus joint is made to spill and cause to waste.In addition, extraneous
Bacterium or the dust road junction that can flow automatically enter the inner cavity of medical Needleless barotropic connector and cause liquid medicine contamination.
It can thus be appreciated that, it is necessary to design a kind of new Medical positive pressure joint.
Invention content
The present invention provides a kind of new closed positive pressure connector.
The present invention provides a kind of closed positive pressure connector, includes valve body with hollow cavity, resets body and spool, described
Inner cavity includes medicine liquid channel, is upper interface end at the top of the inner cavity, and the bottom of the inner cavity is equipped with lower interface end, the liquid
Channel is connected to the lower interface end, and the reset body is fixed on the inner cavity, and the spool is by the reset body elasticity
It is supported on the inner cavity and closes the upper interface end, the spool has the normally closed sealing slit of elasticity, the sealing narrow
For seam positioned at the top of the medicine liquid channel, the spool has original state and transfusion state, described close in the original state
Slit is sealed to be closed；In the transfusion state, the sealing slit is opened, and infusion connector can enter institute from the sealing slit
It states inner cavity and is connected to the medicine liquid channel.
In original state, under natural resiliency force effect, sealing slit is closed.When removing infusion connector, body is being resetted
Under effect, valve core reset, and under natural resiliency force effect, sealing slit is also resetted and is closed.Reset body can be spring or
The other structures for being capable of providing elastic force of person.
No matter in original state or transfusion state, spool can close interface end.
Upper interface end is liquid feeding end, can be connect with infusion connector.Lower interface end is outlet end, can be with Medical treatment device
Tool connects, such as various medical liquid medicine connecting lines.
The inner cavity is equipped with the fixed column in the axis direction extension of valve body, and the medicine liquid channel runs through the fixation up and down
Column, the body that resets entangle the lower part of the fixed column, the valve core housing residence state the top of fixed column and with the fixed column
It is slidably matched.
The top of the fixed column is equipped with the through hole extended radially through, and the through hole is connected to the medicine liquid channel.It passes through
The axis of perforation usually has the angle for acute angle with the axis of fixed column, that is, through hole is obliquely installed obliquely.
The spool includes that the material is soft and flexible upper valve core and the harder bottom spool of material, the sealing slit
Set on the upper valve core, from the upwardly recessed formation mating cavity of the bottom surface of the bottom spool, the top of the fixed column is stretched upwards
Enter in the mating cavity.
The valve body includes the upper casing and pedestal for crossing the inner cavity, and the upper casing is fixed on the top surface of the pedestal,
The top surface of the fixed column from the pedestal upwardly extends, and the medicine liquid channel is through the top surface of the fixed column and described
The bottom surface of the bottom surface of pedestal, lower interface end from the pedestal extends downwardly.
A kind of closed positive pressure connector, including upper casing, pedestal, spring and spool run through the upper casing and form shell chamber up and down,
The top of the shell chamber is equipped with upper interface end, and the bottom of the shell chamber and the top surface of the pedestal are fixed, from the pedestal
Top surface extends upward fixed column, and the fixed column extends upwardly into the shell intracavitary, through the fixed column top surface and
The bottom surface of pedestal forms medicine liquid channel, and lower interface end, the medicine liquid channel are extended downwardly out from the bottom face of the pedestal
It is connected to lower interface end, for the spring pocket in the lower part of the fixed column, the valve core housing is described on the top of the fixed column
Spool has the normally closed sealing slit of elasticity, and the sealing slit is located at the top of the medicine liquid channel, in the original state, institute
Sealing slit is stated to be closed；In the transfusion state, the sealing slit is opened, infusion connector can from the sealing slit into
Enter the inner cavity and is connected to the medicine liquid channel.
The shell chamber may include the up-small and down-big conical first shell chamber of internal diameter and the equal cylindrical second shell of internal diameter
The junction of chamber, first shell chamber and second shell chamber forms horizontal step surface.
The spool includes that the material is soft and flexible upper valve core and the harder bottom spool of material, the sealing slit
Set on the upper valve core, and from the upwardly recessed formation mating cavity of the bottom surface of the bottom spool, the top of the fixed column is upward
It stretches into the mating cavity.
The beneficial effects of the invention are as follows：Normally closed sealing slit is set, liquid can be effectively prevent to spill, stops bacterium or dirt
Angstrom enter medicine liquid channel and cause liquid medicine contamination.
Description of the drawings
Fig. 1 is the stereogram exploded view of the closed positive pressure connector of present embodiment；
Fig. 2 is the schematic top plan view of the spool of the closed positive pressure connector of present embodiment；
Fig. 3 is the schematic cross-sectional view of the closed positive pressure connector of present embodiment；
Fig. 4 is the close-up schematic view at A meanings in Fig. 3.
Specific implementation mode
Below by specific implementation mode combination attached drawing, invention is further described in detail.
As shown in Figures 1 to 4, the closed positive pressure connector of present embodiment includes upper casing 1, rubber plug 2, spring 3 and pedestal 4.
There is upper casing 1 screw tooth end 11, screw tooth end 11 can connect other pipe joints or device junction to convey liquid.1 bottom of upper casing
Equipped with the first positioning step 12, which can assemble one with pedestal.Rubber plug 2 be mounted on upper casing inside, by
Normally closed sealing slit 21 can be automatically opened after interior thrust, and then is connected to pedestal and is conveyed liquid.Spring 3 is mounted on the base, tool
2 elastic reset of rubber plug can be made rubber plug reach closed function by flexible power.Pedestal 4 is equipped with mouthpiece 41, the interface
Pipe 41 can be connected for connecting line, and the position that pedestal 4 corresponds to the first positioning step 12 is equipped with the second positioning step 42, and first is fixed
Position step 12 and 42 location fit of the second positioning step, make pedestal 4 and upper casing 1 assemble one.
In present embodiment, upper casing 1 and pedestal 4 are fixed as one and form the valve body with hollow cavity 13, screw tooth end 11
The top of inner cavity, medical treatment of the mouthpiece 41 as connection for receiving liquid are set to as the upper interface end of connection infusion connector
The lower interface end of instrument and set on inner cavity bottom.Inner cavity 13 may include medicine liquid channel 14.Rubber plug 2 is flexibly supported by spring 3
In the open top of 13 inside of inner cavity and closing inner chamber, and the sealing slit 21 of rubber plug is located at the top of medicine liquid channel 14.
In present embodiment, in the initial state, under own resilient effect, sealing slit 21 is closed.In transfusion state
When, infusion connector is inserted into the closed positive pressure connector, and infusion connector is connected to after can passing through sealing slit 21 with medicine liquid channel 14,
In this process, infusion connector driving rubber plug 2 moves down.When removing infusion connector, sealing slit 21 is returned to initial shape
State and re-close, and rubber plug 2 is reset to original state under spring force effect.
In present embodiment, rubber plug has elasticity and inside upper casing, and cross section can be round or rectangular.Bullet
It is round or rectangular that spring, which can have elasticity and cross section, is installed on pedestal.
As shown in Figures 1 to 4, the closed positive pressure connector of present embodiment includes upper casing 1, rubber plug 2, spring 3 and pedestal 4.
Upper casing 1 and pedestal 4 are fixed as one and are formed the valve body of inner hollow, and rubber plug 2 is resiliently supported at valve inner, glue by spring 3
Plug 2 is capable of the open top of closed valve.Positive pressure connector has original state and transfusion state, in original state, spool closing
The open top of valve body.
Pedestal 4 has opposite top surface 43 and bottom surface 44, and fixation is extended upward from the middle position of top surface 43
Column 45 extends upward the second positioning step 42 from the marginal position of top surface, and the height of fixed column 45 is more than the second positioning table
The height of rank 42.Medicine liquid channel 14 is formed through the top surface of fixed column and the bottom surface of pedestal.From the center of pedestal bottom surface
Position extends downwardly outgoing interface pipe 41, and mouthpiece 41 is connected to medicine liquid channel 14.
The top of upper casing 1 is equipped with screw tooth end 11, which can connect other pipe joints or device junction to convey
Liquid.The bottom of upper casing 1 is equipped with the first positioning step 12.On the axis direction of positive pressure connector, shell is formed through upper casing up and down
Chamber.Shell chamber includes interconnected first shell chamber 15 and second shell chamber 16, the junction shape of first shell chamber 15 and second shell chamber 16
At horizontal step surface 17, and second shell chamber 16 is located at the lower section of first shell chamber 15.Second shell chamber 16 can be that internal diameter is identical
Circular cylindrical shell chamber.The internal diameter of first shell chamber 15 can change, on the axis direction of positive pressure connector, the internal diameter of first shell chamber 15 by
Up to lower increase, it is in the up-small and down-big cone of internal diameter to allow first shell chamber substantially.
Rubber plug 2 includes top cement plug 22 and the bottom plug made of harder material made of softer and flexible material
23.Mating cavity 24 with the end is opened up out upwards from the middle position of bottom plug bottom surface, from the middle position of top cement plug top surface
Normally closed sealing slit 21 is opened up out downwards, flange 25 is extend horizontally away from the side surface of the bottom plug bottom.
The top of fixed column 45 is equipped with the through hole 46 extended radially through, and through hole 46 is connected to medicine liquid channel 14.Through hole
Axis and fixed column axis have for acute angle angle, that is, through hole is arranged obliquely.It stretches upwards on the top of fixed column 45
Enter in the mating cavity 24 of rubber plug, the hydrops in mating cavity 24 can flow back into medicine liquid channel 14 by through hole 46.
When assembly, the second positioning step 42 of pedestal 4 and 12 location fit of the first positioning step of upper casing, upper casing and pedestal
It is fixed as one and forms valve body；Spring 3 is sleeved in fixed column 45, the bottom of spring 3 and bottom of chamber (the i.e. top of pedestal of second shell chamber
Surface) connection, rubber plug 4 is mounted on the top of spring 3.In the initial state, sealing slit 21 is closed, in the elastic masterpiece of spring
Under, rubber plug 2 blocks the open top of valve body, at this point, the flange 25 of rubber plug resists the step surface 17 of valve body, top cement plug, lower glue
The side surface of plug and the cavity wall sealing of the first, second shell chamber coordinate.After infusion connector access, sealing slit is opened, rubber plug quilt
Infusion connector pushes.
In present embodiment, valve body has hollow cavity, and inner cavity includes medicine liquid channel, and medicine liquid channel is connected to mouthpiece,
The normally closed sealing slit of the open top of rubber plug closing inner chamber, rubber plug is located above medicine liquid channel, and infusion connector can pass through close
It is connected to medicine liquid channel after envelope slit.Rubber plug plays the role of sealed valve body inner cavity top opening, rubber plug can also as spool
It is replaced with other materials that can play excellent sealing effect and structure.
The above content is combining, specific embodiment is made for the present invention to be further described, and it cannot be said that this hair
Bright specific implementation is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.
Claims (8)
1. a kind of closed positive pressure connector, which is characterized in that include valve body with hollow cavity, reset body and spool, it is described
Inner cavity includes medicine liquid channel, is upper interface end at the top of the inner cavity, and the bottom of the inner cavity is equipped with lower interface end, the liquid
Channel is connected to the lower interface end, and the reset body is fixed on the inner cavity, and the spool is by the reset body elasticity
It is supported on the inner cavity and closes the upper interface end, the spool has the normally closed sealing slit of elasticity, the sealing narrow
For seam positioned at the top of the medicine liquid channel, the spool has original state and transfusion state, described close in the original state
Slit is sealed to be closed；In the transfusion state, the sealing slit is opened, and infusion connector can enter institute from the sealing slit
It states inner cavity and is connected to the medicine liquid channel.
2. closed positive pressure connector as described in claim 1, which is characterized in that the inner cavity is equipped with the axis direction in valve body
The fixed column of extension, the medicine liquid channel run through the fixed column, the lower part for resetting body and entangling the fixed column, institute up and down
Valve core housing residence is stated to state the top of fixed column and be slidably matched with the fixed column.
3. closed positive pressure connector as claimed in claim 2, which is characterized in that the top of the fixed column is equipped with and extends radially through
Through hole, the through hole is connected to the medicine liquid channel.
4. closed positive pressure connector as claimed in claim 2, which is characterized in that the spool includes that the material is soft and has bullet
Property the harder bottom spool of upper valve core and material, the sealing slit is set to the upper valve core, from the bottom surface of the bottom spool
The top of upwardly recessed formation mating cavity, the fixed column extends upwardly into the mating cavity.
5. closed positive pressure connector as claimed in claim 2, which is characterized in that the valve body includes cross the inner cavity upper
Shell and pedestal, the upper casing are fixed on the top surface of the pedestal, and the top surface of the fixed column from the pedestal upwardly extends,
The medicine liquid channel is through the bottom surface of the top surface and the pedestal of the fixed column, and the lower interface end is from the pedestal
Bottom surface extends downwardly.
6. a kind of closed positive pressure connector, which is characterized in that including upper casing, pedestal, spring and spool, run through the upper casing up and down
Shell chamber is formed, the top of the shell chamber is equipped with upper interface end, and the bottom of the shell chamber and the top surface of the pedestal are fixed, from institute
The top surface for stating pedestal extends upward fixed column, and the fixed column stretches into the shell intracavitary, runs through the top table of the fixed column
The bottom surface of face and pedestal forms medicine liquid channel, and lower interface end, the liquid are extended downwardly out from the bottom face of the pedestal
Channel is connected to the lower interface end, and the spring pocket is in the lower part of the fixed column, and the valve core housing is in the fixed column
Top, there is the spool the normally closed sealing slit of elasticity, the sealing slit to be located at the top of the medicine liquid channel, described first
Beginning state, the sealing slit are closed；In the transfusion state, the sealing slit is opened, and infusion connector can be described in
Sealing slit enters the inner cavity and is connected to the medicine liquid channel.
7. closed positive pressure connector as claimed in claim 6, which is characterized in that the spool includes that the material is soft and has bullet
Property the harder bottom spool of upper valve core and material, the sealing slit is set to the upper valve core, and from the bottom table of the bottom spool
Recessed formation mating cavity upwardly extends upwardly into the mating cavity at the top of the fixed column.
8. closed positive pressure connector as claimed in claim 6, which is characterized in that the top of the fixed column is equipped with and extends radially through
Through hole, the through hole is connected to the medicine liquid channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510583.0A CN108744265B (en) | 2018-05-24 | 2018-05-24 | Closed positive pressure joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510583.0A CN108744265B (en) | 2018-05-24 | 2018-05-24 | Closed positive pressure joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108744265A true CN108744265A (en) | 2018-11-06 |
| CN108744265B CN108744265B (en) | 2024-01-09 |
Family
ID=64005851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810510583.0A Active CN108744265B (en) | 2018-05-24 | 2018-05-24 | Closed positive pressure joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108744265B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448309A (en) * | 2019-09-10 | 2019-11-15 | 深圳安特医疗股份有限公司 | Triple valve |
| CN111744103A (en) * | 2019-03-27 | 2020-10-09 | B.布劳恩梅尔松根股份公司 | Pharmaceutical Fluid Connectors |
| CN113599612A (en) * | 2020-12-07 | 2021-11-05 | 刘云虎 | Large-flow needle-free glue valve joint and assembling method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912664A (en) * | 2010-05-21 | 2010-12-15 | 成都普什医药塑料包装有限公司 | Disposable positive pressure connector |
| US20140371686A1 (en) * | 2012-02-13 | 2014-12-18 | Nipro Corporation | Needle-less connector |
| CN204307139U (en) * | 2014-11-18 | 2015-05-06 | 深圳市安特高科实业有限公司 | Closed positive pressure connector |
| CN204307149U (en) * | 2014-11-18 | 2015-05-06 | 深圳市安特高科实业有限公司 | Closed positive pressure remaining needle |
| JP2016106958A (en) * | 2014-12-09 | 2016-06-20 | ニプロ株式会社 | Needleless connector |
-
2018
- 2018-05-24 CN CN201810510583.0A patent/CN108744265B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912664A (en) * | 2010-05-21 | 2010-12-15 | 成都普什医药塑料包装有限公司 | Disposable positive pressure connector |
| US20140371686A1 (en) * | 2012-02-13 | 2014-12-18 | Nipro Corporation | Needle-less connector |
| CN204307139U (en) * | 2014-11-18 | 2015-05-06 | 深圳市安特高科实业有限公司 | Closed positive pressure connector |
| CN204307149U (en) * | 2014-11-18 | 2015-05-06 | 深圳市安特高科实业有限公司 | Closed positive pressure remaining needle |
| JP2016106958A (en) * | 2014-12-09 | 2016-06-20 | ニプロ株式会社 | Needleless connector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744103A (en) * | 2019-03-27 | 2020-10-09 | B.布劳恩梅尔松根股份公司 | Pharmaceutical Fluid Connectors |
| CN110448309A (en) * | 2019-09-10 | 2019-11-15 | 深圳安特医疗股份有限公司 | Triple valve |
| CN113599612A (en) * | 2020-12-07 | 2021-11-05 | 刘云虎 | Large-flow needle-free glue valve joint and assembling method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108744265B (en) | 2024-01-09 |
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