CN106413775B - Secondary filter medical infusion connector - Google Patents
Secondary filter medical infusion connector Download PDFInfo
- Publication number
- CN106413775B CN106413775B CN201480078730.1A CN201480078730A CN106413775B CN 106413775 B CN106413775 B CN 106413775B CN 201480078730 A CN201480078730 A CN 201480078730A CN 106413775 B CN106413775 B CN 106413775B
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- China
- Prior art keywords
- filter
- filter membrane
- connector
- shell
- medical infusion
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Classifications
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- 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
- A61M39/04—Access sites having pierceable self-sealing members
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1652—Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
-
- 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
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7545—General characteristics of the apparatus with filters for solid matter, e.g. microaggregates
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
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
A kind of secondary filter medical infusion connector, including with non small cellCatheter component docking connector pedestal (3) and with the overlapping joint (1) of medical fluid infusion apparatus docking, all have interconnected infusion channel in both connector pedestal (3) and overlapping joint (1) inner cavities.The medical infusion connector includes the accurate filter (2) that one kind is connected across between connector pedestal (3) and overlapping joint (1), accurate filter (2) includes a shell, housing cavity is infusion channel, wherein it is installed with filter membrane component, there are gas vent (213) on shell, gas vent (213) top plug is equipped with the venting plug of ventilative blocking solution.The medical infusion connector has filtering particle more thoroughly, and filtrate flow velocity is very fast, advantage compact structure and easy to use.
Description
Description
Technical field
The present invention relates to a kind of medical infusion connector, especially a kind of secondary filter medical infusion connector.
Background technique
It is indispensable important method and means in clinical treatment by the venous transfusion that disposable transfusion device carries out, it is defeated
Filter membrane is installed on liquid device, but this filter membrane being installed on infusion apparatus is merely capable of filter diameter and is greater than 5 microns
Particle, diameter are to be equal to and the particle less than 5 microns, disposable transfusion device can not filter.
The main generation process of particle has: one, plastic particles, the adsorbate of infusion bag in process of production；Two, rubber is micro-
Grain, generates in plug bottle pin puncture rubber plug；Three, fiber, batting, dust particle connect with during puncturing with indoor environment opening bag
Touching generates；Four, carbon black particle, the existing particle of some pharmaceutical preparations itself；Five, insoluble micelle, due to the limit of purifying technique
System, generates in Chinese herbal and crude drugs preparations production process；Six, crystalline solid particle increases in the variation of medicament storage condition and storage time
In the case where generate；Seven, glass chip particle is the particle being scattered when cutting ampoule；Eight, drug microparticles, when adding drug, because
Some pulvis dissolutions not exclusively, between drug occur physical and chemical effect, solvent change, pH value variation etc. and generate.
It can be seen that this filter membrane is more forward due to being arranged, opening bag, puncturing rubber plug in infusion process can not be also filtered
The particle Deng caused by.And particle is once not filtered out, and enters human body by infusion, and very big harm will be caused to human body.
Summary of the invention
It is an object of the invention to overcome shortcoming in the prior art, and provide a kind of filtering particle essence more thoroughly
Close filtering medical infusion connector.
The purpose of the present invention is what is realized by following approach.
Secondary filter medical infusion connector is infused including the connector pedestal with non small cellCatheter component docking and with medical fluid
The overlapping joint of device docking all has interconnected infusion channel in both connector pedestal and overlapping joint inner cavity, forms main points
It is: further includes a kind of accurate filter being connected across between connector pedestal and overlapping joint, accurate filter includes a shell, shell
Intracoelomic cavity is infusion channel, wherein being installed with filter membrane component, has gas vent on shell, gas vent top plug is equipped with ventilative blocking solution
Venting plug.
In this way, outlet end punctures needle tubing or outer circle taper joint on infusion apparatus when infusion, it is inserted into overlapping joint of the invention,
It is connected via filter and connector pedestal with indwelling instrument of being infused outside human body, in this way, medical fluid first passes through infusion apparatus, using
Has secondary filter function infusion connector, medical fluid is further filtered through filtering film component, while filtering out fine gas bubbles in medical fluid, is filtered out
Bubble is removed through the filter membrane of permeable watertight on filter cover from row of exhausting-gas hole, and purification medical fluid just enters in human vas, such as
This, can reduce the infusion reaction hidden danger caused by particle significantly.
The purpose of the present invention can also be realized by following approach.
Housing cavity bottom is in a kind of funnel-form, and filter membrane component is located on lower portion delthyrial cavity, collects the three of filtrate
Angle bottom of chamber portion connects spout of funnel, and outside shell, core hollow is connected to delthyrial cavity and is infusion channel spout of funnel emergence.
Spout of funnel constitutes male contact in a cone, and male contact top is provided with one close to one fixed spacing of shell outer bottom
Kind bulge loop, this male contact and bulge loop integral connector pedestal.This male contact and bulge loop can be directly and on indwelling instruments
Hose is directly socketed.Or further it is specially
It is connected with tightening nut outside male contact, this tightening nut hangs branch on bulge loop, the position touched with bulge loop
It is relatively conjugation, this male contact, bulge loop and tightening nut integral connector pedestal.
After bulge loop is convenient for male contact insertion instrument upper connecting base, when tightening nut and instrument upper connecting base are screwed on, bulge loop is total
Yoke surface is sealed by tension and compression, and prevents male contact from deviating from attachment base.
The construction combined about shell with filter membrane component can advanced optimize are as follows:
Shell has upper cover, and after assembled filter membrane component is put into housing cavity, upper cover is affixed with shell, is arranged on upper lid
There is the construction connecting with overlapping joint, between filter membrane component outside or filter membrane component outside and bottom and housing cavity corresponding surface
Gap with filtrate flows.Further optimization is:
Case top open edge is equipped with annular ladder, filter membrane component upper limb outreach flange, this flange and this annular
Step is corresponding, and filter membrane component passes through this correspondence tectonic location and affixed is sealed in housing cavity.
Outside can only penetrate filter membrane intercommunication in such filter membrane component.
It can be advanced optimized about filter membrane component are as follows:
Filter membrane component includes filter holder and filter membrane, filter membrane or posts on filter holder lateral surface or posts
On filter holder lateral surface and bottom surface, filter holder is perhaps in a kind of tetrahedroid frame or in a kind of cylinder-shaped frame
Frame.
It can also advanced optimize are as follows:
Filter membrane component includes filter holder and filter membrane, share four or six or eight sheet frames between left and right every
It arranges and affixed composition filter holder, filter membrane posts on every sheet frame, filter membrane component center of top opening, bottom two
Side opening, filtrate channel are filtered through even number filter membrane by outside to the left and right respectively via the interval of intermediate two sheet frames
The gap of film and housing cavity corresponding side surface passes downwardly through the both-side opening of filter membrane component bottom, connects housing cavity bottom and goes out
Mouthful.
In this way, filtrate tool is there are two filtration channel, at least two filter membranes are passed through in each channel, filtering more thoroughly and not shadow
Ring the flow velocity of filtrate.
Can also be such that filter holder is made of left and right side stand and intermediate support, side stand has japanese character frame,
Bracket lower edge has outreach list flange, and filter membrane is posted in bracket right frame face, and intermediate support has lateral U-shaped, and has
One fixed width, U-shaped two sidewalls hollow out have symmetrical outreach flanged lip, flange corner at day word frame 261, U-shaped two sidewalls upper limb
Equipped with a ladder, so as to side stand affixed positioning therewith, filter membrane is posted in side frame face outside U-shaped, side stand and intermediate support group
Close the parallel multilayer paliform filter layer of affixed composition, filter membrane component center of top and both-side opening, each adjacent two filter membrane in left and right
Bottom opening, filtrate channel via center of top and both-side opening, respectively pass through a filter membrane, pass downwardly through each adjacent around
The bottom opening of two filter membranes connects housing cavity outlet at bottom.
In this way, it can be achieved that volume is as small as possible, and filter area is as big as possible, intensive filtration device filter capacity.
Case top lid is in a kind of gable top face, connects a kind of overlapping joint on each inclined-plane, organizes branch form in pairs
Liquid input adapter.
Wherein a branch can be infusion connector, and another branch can be inner circle wimble interface.Input adapter can also be tool
Infusion connector of different function, such as needleless joint, positive pressure connector etc..Liquid input adapter can be separately fabricated then affixed
On the filter on lid fixation hole, connector liquid outlet is through to the filter cover other side.Infusion connector shell can also be with mistake
Filter upper cover is integrally manufactured.
In conclusion the present invention have the advantages that compared with prior art filtering particle more thoroughly, and filtrate flow velocity compared with
Fastly, compact structure and easy to use.
Detailed description of the invention
Fig. 1 is the structural representation front view of secondary filter medical infusion connector described in the embodiment of the present invention 1；
Fig. 2 is the structure that secondary filter medical infusion connector described in the embodiment of the present invention 1 and remaining needle link together
Schematic diagram；
Fig. 3 is the structural schematic diagram that secondary filter medical infusion connector is connect with hose described in the embodiment of the present invention 1；
Fig. 4 is the filtration device structure schematic perspective section view in secondary filter medical infusion connector described in the embodiment of the present invention 1
Figure；
Fig. 5 is that the filter cover structural representation in secondary filter medical infusion connector described in the embodiment of the present invention 1 is three-dimensional
Figure；
Fig. 6 is that the filter housings structural representation in secondary filter medical infusion connector described in the embodiment of the present invention 1 is three-dimensional
Figure；
Fig. 7 is that the filter housings structural representation in secondary filter medical infusion connector described in the embodiment of the present invention 1 is three-dimensional
Cross-sectional view；
Fig. 8 is the filtering membrane of filter supporting structure signal in secondary filter medical infusion connector described in the embodiment of the present invention 1
Perspective view；
Fig. 9 is the filtering membrane of filter modular construction signal in secondary filter medical infusion connector described in the embodiment of the present invention 1
Perspective view；
Figure 10 is the filtrate channel schematic diagram of secondary filter medical infusion connector described in the embodiment of the present invention 1；
Figure 11 is the structural representation front view of secondary filter medical infusion connector described in preferred embodiment；
Figure 12 is that secondary filter medical infusion connector described in preferred embodiment links together with remaining needle
Structural schematic diagram；
Figure 13 is the structural schematic diagram that secondary filter medical infusion connector is connect with hose described in preferred embodiment；
Figure 14 is the knot that secondary filter medical infusion connector described in preferred embodiment is connect with double branch overlapping joints
Structure schematic diagram；
Figure 15 is the filtration device structure schematic perspective in secondary filter medical infusion connector described in preferred embodiment
Cross-sectional view；
Figure 16 is another section view side of filter in secondary filter medical infusion connector described in preferred embodiment
To structural representation three-dimensional cutaway view；
Figure 17 is the filter cover structural representation in secondary filter medical infusion connector described in preferred embodiment
Perspective view；
Figure 18 is the filter housings structural representation in secondary filter medical infusion connector described in preferred embodiment
Perspective view；
Figure 19 is the filter housings covering plate structure in secondary filter medical infusion connector described in preferred embodiment
Schematic isometric；
Figure 20 is the filter housings lower cover structure in secondary filter medical infusion connector described in preferred embodiment
Schematic isometric；
Figure 21 is the filter housings lower cover structure in secondary filter medical infusion connector described in preferred embodiment
Schematic perspective cross-sectional view；
Figure 22 is that the filtering membrane of filter bracket in secondary filter medical infusion connector described in preferred embodiment is collateral
Frame structural representation perspective view；
Figure 23 is among the filtering membrane of filter bracket in secondary filter medical infusion connector described in preferred embodiment
Supporting structure schematic isometric；
Figure 24 is the filtering membrane of filter modular construction in secondary filter medical infusion connector described in preferred embodiment
Schematic isometric；
Figure 25 is the filtrate channel schematic diagram of secondary filter medical infusion connector described in preferred embodiment.
Label declaration
1 overlapping joint；2 filters；21 upper covers；211 protrusion Gai Yuan；212 fixation holes；213 gas vents；22 shells；221 funnels
Chamber；222 male contacts；223 bulge loops；224 through-holes；225 delthyrial cavities；226 annular ladders；227U shape wall；228 inward flanges；23 filters
Membrane support；231 tetrahedroid frames；232 outreach flanges；233 or so side stands；234 intermediate supports；24 filter membranes；25 ventilated membranes；
251 japanese character frames；252 flanges；26 lower covers；Word frame on the 261st；262 ladders；263 flanged lips；28 diaphragm seals；29 casing covers
Plate；3 connector pedestals；4 attachment bases；5 hoses；6 infusion connectors；7 inner circle wimble interfaces.
More description in detail is carried out to the present invention with reference to the accompanying drawing
Specific embodiment
Embodiment 1
As shown in Figure 1, the present invention is made of docking 1, accurate filter 2 and connector pedestal 3, using medical plastic, medical
Rubber and filter membrane are made.Connector pedestal 3 of the invention, i.e. fluid output port have taper male contact, can be with indwelling device outside human body
Tool input port attachment base 4 is mating, then is locked by the activity tightening nut in connector pedestal 3, as shown in Figure 2.Liquid
Output end male contact can also be combined into one with indwelling instrument upper connecting base, directly with to connect hose 5 affixed, as shown in Figure 3.
Wherein overlapping joint 1 can be also possible to multiple branch circuit form in the form of single spur track, and double branches, a branch are as shown in Figure 1
Infusion connector, another branch are inner circle wimble interfaces.Input adapter can also be that the infusion connector of tool different function, such as needleless connect
Head, positive pressure connector etc..Liquid input adapter can be separately fabricated, then be fixed on accurate filter upper cover fixation hole, connector
Liquid outlet is through to the filter cover other side.Infusion connector shell can also be integrally manufactured with filter cover.
As shown in figure 4, accurate filter 2 is by upper cover 21, shell 22, filter holder 23, multi-disc precision filtration membranes 24, soft close
Mounting 28 and multi-disc permeable watertight ventilated membrane 25 form.
Upper cover has protrusion lid edge 211 as shown in figure 5, flat cover triangular in shape, and inclination tegmental wall is provided with the peace of overlapping joint 1
Fixation hole 212 is filled, and is provided with multiple gas vents 213, ventilated membrane 25 is posted in 213 inner outlet of gas vent.
Shell is as shown in Figure 6,7, has a rectangular funnel shape shell, funnel chamber 221 is for installing filtering layer assembly, funnel
For chamber lower part delthyrial cavity 225 convenient for collecting filtering liquid medicine, spout of funnel constitutes male contact 222 in a cone, male contact upper end away from
External one fixed spacing of bottom surface of shrinking away from theshell is provided with a triangle bulge loop 223, after bulge loop is convenient for male contact insertion instrument upper connecting base,
When tightening nut is screwed on instrument upper connecting base, the conical surface is sealed by tension and compression, and prevents male contact abjection attachment base, in male contact
Through-hole 224 is connected to funnel chamber, and filter housing top edge is equipped with rectangle annular ladder 226.
For filter holder 23 as shown in figure 8, having 231 structure of tetrahedroid frame, bracket upper limb has outreach flange 232,
Other than frame upper ledge face, filter membrane 24 is posted in stent outer frame face, as shown in Figure 9.Outreach flange convenience and mistake on bracket
The affixed positioning of filter shell top edge ring ladder, as shown in Figure 4.
Filter combination be it is such, be combined into filtering layer assembly first, as shown in figure 9, again will filtering layer assembly installation
Into in filter housing, filter holder upper flange and filter housing annular ladder socket-connect fixation, and affixed sealing, so
Filter membrane intercommunication can only be penetrated by filtering side inside and outside layer assembly, later, the affixed good each branch pipeline connector of filter cover combination, in upper cover
Ventilated membrane has been posted at the air hole of side, activity locking spiro cap has been entered into male contact on filter housing, it is convex that pressure covered male contact
Then ring covers the upper cover that filter has combined, be aligned affixed sealing after filter housing, so constitutes the accurate mistake of complete tool
Filter function infusion connector.In use, liquid flow direction is as shown in Figure 10 for connector.
The not described part of the present embodiment is same as the prior art.
Most preferred embodiment
As shown in figure 11, the present invention is made of overlapping joint 1, accurate filter 2 and connector pedestal 3, using medical plastic, doctor
It is made of rubber and filter membrane.
As shown in figure 12, connector pedestal 3 of the invention, i.e. fluid output port have taper male contact, can stay outside with human body
It is mating to set instrument input port attachment base 4, then be locked by activity tightening nut.
As shown in figure 13, fluid output port male contact can also be combined into one with indwelling instrument upper connecting base, directly and even
It is affixed to connect hose 5.
Wherein liquid input adapter is also possible to multiple branch circuit form, and as shown in figure 14, a branch is infusion connector 6, another
Branch is inner circle wimble interface 7.Input adapter can also be the infusion connector of tool different function, such as needleless joint, positive pressure connector
Deng.Liquid input adapter can be separately fabricated, then be fixed on accurate filter upper cover fixation hole, connector liquid outlet through to
The filter cover other side.Infusion connector shell can also be integrally manufactured with filter cover.
As shown in Figure 15, Figure 16, accurate filter 2 is by upper cover 21, shell 22, cover plate of outer casing 29, lower cover 26, filter membrane or so
Side stand 233, filter membrane intermediate support 234, multi-disc precision filtration membranes 24, soft diaphragm seal 28 and multi-disc permeable watertight ventilated membrane 25
Composition.
Upper cover is as shown in figure 17, is in flat rectangular lid, has protrusion lid edge 211, it is solid that tegmental wall is provided with infusion connector installation
Determine hole 212, and be provided with multiple gas vents 213, ventilated membrane 25 is posted in exhaust inner outlet.
Shell is as shown in figure 18, tool capitalization U-shaped wall 227, while wall lower edge has an inward flange 228.
Cover plate of outer casing 29 is one with certain thickness rectangular slab as shown in figure 19.
Lower cover 24 has a funnel-form shell as shown in Figure 20,21, and funnel chamber 221 is convenient for collecting filtering liquid medicine, spout of funnel
Male contact 222 is constituted in a cone, male contact upper end is provided with a triangle bulge loop 223 apart from the certain spacing in lower base,
After bulge loop is convenient for male contact insertion instrument upper connecting base, when tightening nut and instrument upper connecting base are screwed on by tension and compression, sun is prevented
Connector deviates from attachment base, and male contact inner via hole 224 is connected to lower cover funnel chamber.Filter holder is by left and right side stand 233 and centre
Bracket 234 is constituted, and side stand is as shown in figure 22, has japanese character frame 251, and bracket lower edge has outreach list flange 252, filtering
Film is posted in bracket right frame face；Intermediate support is as shown in figure 23, has lateral U-shaped, and have one fixed width, U-shaped two sides
For wall hollow out at day word frame 261, U-shaped two sidewalls upper limb has symmetrical outreach flanged lip 263, and flange corner is equipped with a ladder 262,
So as to side stand affixed positioning therewith, filter membrane is posted in side frame face outside U-shaped, and side stand combines affixed constitute with intermediate support and puts down
Row multilayer paliform filter layer, as shown in figure 24, it can be achieved that volume is as small as possible, and filter area is as big as possible, intensive filtration
Device filter capacity.
Filter combination be it is such, be combined into filter layer first, filter housing U-shaped bottom place a soft sealing
Piece, diaphragm seal is abutted with shell inward flange top below, then filter layer is installed into filter housing, filter or so
Side stand lower flange lower plane is abutted with shell inward flange top, and filter layer one end is contacted with diaphragm seal, then in filter layer
The other end covers upper another diaphragm seal, and diaphragm seal is concordant with outer shell flanch top below, covers cover plate of outer casing, is aligned with shell
It is affixed afterwards, it is squeezed by cover plate of outer casing, such two end side of filter layer and soft diaphragm seal are in close contact, and realize sealing, filter layer
Left and right side stand lower flange and outer shell flanch can be by glued seals, can also be by frit seal, in this way, filter layer top and bottom are left
Right side can only penetrate filter membrane intercommunication.Later, the affixed good each branch pipeline connector of filter cover combination is covered at air hole on the inside of the upper cover
Ventilated membrane is posted, activity locking spiro cap is entered into male contact on filter lower cover, pressure covered male contact bulge loop, then covered
The upper and lower covers that filter has combined, are aligned affixed sealing after filter housing, so constitute complete tool secondary filter function infusion
Connector.In use, liquid flow direction is as shown in figure 25 for connector.
The not described part of the present embodiment is same as the prior art.
Claims (6)
1. secondary filter medical infusion connector, including with non small cellCatheter component docking connector pedestal and with medical fluid infusion apparatus
The overlapping joint of docking, both connector pedestal and overlapping joint all have interconnected infusion channel in inner cavity, which is characterized in that also
Including a kind of accurate filter being connected across between connector pedestal and overlapping joint, accurate filter includes a shell, housing cavity
Wherein being installed with filter membrane component there is gas vent on shell for infusion channel, gas vent top plug is equipped with the exhaust of ventilative blocking solution
Plug；
Filter membrane component includes filter holder and filter membrane, and filter holder is made of left and right side stand and intermediate support, side stand tool
There is japanese character frame, bracket lower edge has outreach list flange, and filter membrane is posted in bracket right frame face, and intermediate support has lateral
U-shaped, and there is one fixed width, U-shaped two sidewalls hollow out has symmetrical outreach flanged lip at day word frame, U-shaped two sidewalls upper limb,
Flange corner is equipped with a ladder, and so as to side stand affixed positioning therewith, filter membrane is posted in side frame face outside U-shaped, and side stand is in
Between holder combination is affixed constitutes parallel multilayer paliform filter layer, filter membrane component center of top and both-side opening, each phase in left and right
The bottom opening of adjacent two filter membranes, filtrate channel respectively pass through a filter membrane, pass downwardly through a left side via center of top and both-side opening
The bottom opening of right each adjacent two filter membrane, connects housing cavity outlet at bottom；
Housing cavity bottom is in a kind of funnel-form, and filter membrane component is located on lower portion delthyrial cavity, collects the delthyrial cavity of filtrate
Bottom connects spout of funnel, and outside shell, core hollow is connected to delthyrial cavity and is infusion channel spout of funnel emergence.
2. secondary filter medical infusion connector according to claim 1, which is characterized in that spout of funnel is constituted in a cone
Male contact, male contact top are provided with a kind of bulge loop close to one fixed spacing of shell outer bottom, this male contact and bulge loop composition connect
Head pedestal.
3. secondary filter medical infusion connector according to claim 2, which is characterized in that be connected with outside male contact tight
Determine nut, this tightening nut hang branch on bulge loop, be relatively conjugation with the position that bulge loop touches, this male contact, bulge loop with
And tightening nut integral connector pedestal.
4. secondary filter medical infusion connector according to claim 1, which is characterized in that shell has upper cover, assembles
Filter membrane component be put into housing cavity after, upper cover is affixed with shell, and the construction connecting with overlapping joint, filter membrane group are provided on upper lid
There is the gap of filtrate flows on the outside of part or on the outside of filter membrane component and between bottom and housing cavity corresponding surface.
5. secondary filter medical infusion connector according to claim 4, which is characterized in that case top open edge is equipped with
Annular ladder, filter membrane component upper limb outreach flange, this flange is corresponding with this annular step, and filter membrane component corresponds to structure by this
It makes positioning and affixed is sealed in housing cavity.
6. secondary filter medical infusion connector according to claim 1, which is characterized in that case top lid is in a kind of triangle
Deck connects a kind of overlapping joint on each inclined-plane, organizes the liquid input adapter of branch form in pairs.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/075148 WO2015154304A1 (en) | 2014-04-11 | 2014-04-11 | Microfiltration medical infusion connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106413775A CN106413775A (en) | 2017-02-15 |
| CN106413775B true CN106413775B (en) | 2019-08-20 |
Family
ID=54287141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480078730.1A Active CN106413775B (en) | 2014-04-11 | 2014-04-11 | Secondary filter medical infusion connector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106413775B (en) |
| WO (1) | WO2015154304A1 (en) |
Citations (9)
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|---|---|---|---|---|
| DE19833181C1 (en) * | 1998-07-23 | 2000-01-13 | Metallform Gmbh & Co Kg | Lockable plug connection for medical equipment |
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Also Published As
| Publication number | Publication date |
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| CN106413775A (en) | 2017-02-15 |
| WO2015154304A1 (en) | 2015-10-15 |
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