CN208405567U - Positive pressure threeway is transfused attachment device - Google Patents
Positive pressure threeway is transfused attachment device Download PDFInfo
- Publication number
- CN208405567U CN208405567U CN201820077512.1U CN201820077512U CN208405567U CN 208405567 U CN208405567 U CN 208405567U CN 201820077512 U CN201820077512 U CN 201820077512U CN 208405567 U CN208405567 U CN 208405567U
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- Prior art keywords
- capsule
- inner core
- connector
- capsules
- positive pressure
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- 239000002775 capsule Substances 0.000 claims abstract description 161
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 18
- 238000001802 infusion Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 7
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001739 rebound effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
The field of medical instrument technology that the utility model relates to be transfused for liquid, specifically a kind of positive pressure threeway is transfused attachment device, it is characterized in that being equipped with positive pressure mechanism in connector case body, the positive pressure mechanism includes Capsules, capsule inner core and connector, the Capsules have the hollow telescopic body of wave, one end of telescopic body is equipped with open joint connection, joint connection is connected to be connected to outside atmosphere with connector, the other end of telescopic body is closed through capsule inner core interconnecting piece, the leading portion of capsule inner core interconnecting piece is the tube-shaped through hole for grafting capsule inner core, the rear end of capsule inner core interconnecting piece is back taper body, the bottom margin of back taper body is connected with telescopic segment main body；Capsule inner core is plugged in tube-shaped through hole, and connector is equipped with capsule attachment base, and the joint connection on telescopic body is set on capsule attachment base, and connector coheres the other end for being fixed on connector shell hollow lumen.
Description
Technical field
The field of medical instrument technology that the utility model relates to be transfused for liquid, it is specifically a kind of when it is connected to
When one medical instrument, the circulation of liquid can be carried out between another medical instrument, when being disconnected with upstream medical instrument,
Liquid generates to the positive pressure threeway of the forward flow of outlet and downstream medical instrument direction and is transfused attachment device.
Background technique
Currently, when hospital is transfused medical fluid to patient, it will usually the infusion attachment device of connector etc is used, in order to
Connection liquid being transported to from a medical instrument between another medical instrument, such as infusion apparatus and remaining needle.Positive pressure is defeated
Note attachment device is a kind of infusion device of needleless, avoids needle point and punctures the exfoliation pollution medical fluid generated, while avoiding needle
Point accidentally injures medical staff, and connection can produce positive pressure after disconnecting, and avoids because of the case where blood back generates plugging generation.
Patent document CN 104815363A discloses a kind of positive pressure connector comprising needleless joint and rubber plug, rubber plug by
Solid part and hollow part composition, rubber plug is placed in the inner cavity of needleless joint, and positive pressure connector accesses external infusion equipment when use,
External equipment oppresses the upper surface of solid part, the deformation of solid part compression rearward recess, while solid part compressing hollow part is deformed,
External equipment and the unimpeded connection in inner cavity, after external equipment leaves, hollow part rebound.In order to improve the resilience of hollow part,
Above-mentioned document describes and is equipped with rib on the outside of hollow part, and rib is intermittent or horizontal by 70 °, 85 °, 30 ° of angles or be X
Type combines rib, is easy to block when for solving the problems, such as that hollow part resilience is weak or hollow part is sprung back.
And in fact, the infusion pressure of external equipment direction determine hollow part optimal deformation direction should in hollow part
Axis is overlapped, and is only arranged when rib is overlapped with hollow part central axes namely rib is straight in hollow part in above-mentioned technical proposal
When on outer wall, the optimal screen resilience of effect can be obtained, remaining scheme such as rib interruption or rib horizontal by 70 °, 85 °,
During actual loading, screen resilience is dispersed by rib 30 ° of angles, reduces hollow part instead and smoothly returns along its central axes
The effect of bullet, and be easy that Caton occurs along rib direction；When rib is straight setting or X-type combines rib, although can obtain
Preferable screen resilience, but can to hollow part, deformation occurs causes obstacle, cause when external infusion equipment accesses, hollow part is not
Enough deformation can be generated under the effect of external infusion pressure, influence positive pressure effect.
In addition to this, existing capsule solid part is unfavorable for liquid communication, due to solid part is identical as capsule some materials,
Hardness is identical, is unfavorable for being infused；And the sealed connection between capsule solid part and needleless joint needs multiple assembling fittings to realize,
Cause structure is complicated, assembly it is cumbersome, at high cost.
Summary of the invention:
The utility model is directed to shortcoming and defect existing in the prior art, propose it is a kind of it is structurally reasonable, assembly is easy,
The positive pressure threeway that production cost is low, capsule compression/rebound is stable is transfused attachment device.
The utility model is achieved by the following measures:
A kind of positive pressure threeway infusion attachment device, equipped with the connector shell with hollow lumen, connector case body side surface
Equipped with branch connector, the lumen of branch connector is connected with the hollow lumen of connector shell, it is characterised in that sets in connector case body
There is positive pressure mechanism, the positive pressure mechanism includes Capsules, capsule inner core and connector, and the Capsules have wave
Hollow telescopic body, one end of telescopic body are equipped with open joint connection, joint connection be connected with connector from
And be connected to outside atmosphere, the other end of telescopic body is closed through capsule inner core interconnecting piece, and the leading portion of capsule inner core interconnecting piece is
For the tube-shaped through hole of grafting capsule inner core, the rear end of capsule inner core interconnecting piece is back taper body, the bottom margin of back taper body
It is connected with telescopic segment main body；Capsule inner core is plugged in tube-shaped through hole, and connector is equipped with capsule attachment base, on telescopic body
Joint connection be set on capsule attachment base, connector coheres the other end for being fixed on connector shell hollow lumen.
Fluid path and the gas for being connected to Capsules and outside atmosphere are opened up on connector described in the utility model
Access.
It is equipped in the utility model connector case body and is led for preventing capsule retractable section extremely flexible and medical fluid can be played
The guiding of stream effect shunts rib, and guiding shunts rib and is distributed in the inner wall for corresponding to Capsules set-down location in connector case body
On, guiding shunts rib and extends along capsule retractable direction, and setting two or more equidistantly distributed is in connector shell hollow lumen
Guiding on inner wall shunts rib, thus complete the guidance that capsule retractable section compression/extension is acted and to the liquid of injection into
Row shunts guiding, is preferably provided with 8 guiding and shunts rib.
Capsule inner core described in the utility model is plastic part, and capsule inner core is by top plate and for being connected with Capsules
Plug division composition, plug division is in the shape of a rod, and plug division is hollow rod shape, and bottom is equipped with the notch along body of rod extending direction, thus
Make shank bottom that there is deformability can suitably shrink when being plugged to Capsules, is conducive to assembly manipulation, the glue
The cover top surface of intracapsular core opens up diversion trench, preferably opens up cross diversion trench, the center of cross diversion trench and roof center weight
It closes, is convenient for medical fluid water conservancy diversion when use.
The end outer of the plug division of capsule inner core described in the utility model is equipped with annular convex platform, the capsule inner core connection
The end of the tube-shaped through hole of portion's leading portion is correspondingly provided with the interior annular groove being matched therewith, and capsule inner core is made to be plugged to tube-shaped through hole
When, annular convex platform is embedded in interior annular groove, connect capsule inner core closely with Capsules.
The hollow lumen inner wall and Capsules shape of connector shell described in the utility model are adapted, that is, are corresponded to hollow
The part of capsule back taper body is equipped with the inclined-plane being adapted with Capsules outer wall, the capsule inner core linkage section of corresponding Capsules
Locate hollow lumen internal diameter and capsule inner core linkage section outer diameter is adapted, gap forms liquid between Capsules and connector shell
Channel.
The utility model branch connector is 45 ° of infusion ports.
The utility model is made of connector shell, connector, Capsules, capsule inner core, and wherein Capsules are stretched
Contracting main body is wavy, is conducive to compress and uphold, and compressibility and resilience are more preferable, and effectively prevent that capsule do not spring back asks
Topic, Capsules upper end and capsule inner core cooperate, and threeway shell is set there are two infusion port, and straight type has positive pressure effect, 45 ° of infusion ports
It is standard Luer locked joints without positive pressure effect.There are 8 ribs on connector shell inner wall, be conducive to the compression of capsule and return
Bullet and be conducive to carry out shunting water conservancy diversion to medical fluid；Capsules capsule upper end has a tube-shaped through hole, in tube-shaped through hole and capsule
Core interference fit, Capsules lower end are communicated with connector venthole, and air can be discharged in atmosphere in capsule when compressed, rebound
When outside air can enter in capsule；External infusion instrument is connected with the connector shell close to capsule inner core one end when use
It connecing, transfusion instrument squeezes capsule inner core and then compresses Capsules, and medical fluid is infused in connector case body by transfusion instrument at this time,
And the gap between Capsules and connector shell is delivered to connector, then exports through connector, and defeated through connector
It send；After infusion-completed, transfusion instrument is extracted, and compressed Capsules rebound, outside atmosphere is through the gas passage on connector
Into in Capsules, medical fluid continues to promote under rebound effect when Capsules are sprung back, and is infused to effectively prevent extracting
The blood back generated after instrument.
Compared with prior art, the compression and rebound of capsule are more stable, and number of fitting parts is few, and there is structure to close for the utility model
Reason assembles the significant advantages such as easy, production cost is low.
Detailed description of the invention:
Attached drawing 1 is the structural schematic diagram of the utility model.
Attached drawing 2 is the structural schematic diagram of Capsules and capsule inner core in the utility model.
Attached drawing 3 is the use state diagram of the utility model.
Attached drawing 4 is the structural schematic diagram of connector shell in the utility model.
Attached drawing 5 is the schematic diagram of the top plate of capsule inner core in the utility model.
Attached drawing 6 is that transfusion instrument is inserted into the utility model, the flow schematic diagram of gas when Capsules are compressed.
Attached drawing 7 is that transfusion instrument is inserted into the utility model, the flow schematic diagram of liquid when Capsules are compressed.
Attached drawing 8 is that transfusion instrument is extracted in the utility model, the flow schematic diagram of gas when Capsules are sprung back.
Attached drawing 9 is the structural schematic diagram of capsule inner core in the utility model.
Appended drawing reference: connector 1, connector shell 3, capsule inner core 4, capsule inner core interconnecting piece 5, stretches Capsules 2
Main body 6, joint connection 7, guiding shunt rib 8, notch 9, top plate 10, plug division 11, annular convex platform 12, diversion trench 13.
Specific embodiment:
The utility model will be further described below with reference to the accompanying drawings.
As shown in the picture, the utility model proposes a kind of positive pressure threeways to be transfused attachment device, and being equipped with has hollow lumen
Connector shell 3,3 side of connector shell be equipped with branch connector, the hollow lumen phase of the lumen and connector shell 3 of branch connector
Connection, it is characterised in that positive pressure mechanism is equipped in connector shell 3, the positive pressure mechanism includes Capsules 2, capsule inner core 4
And connector 1, the Capsules 2 have the hollow telescopic body 6 of wave, one end of telescopic body 6 is equipped with open
Joint connection 7, joint connection 7 are connected to be connected to outside atmosphere with connector 1, the other end warp of telescopic body 6
Capsule inner core interconnecting piece 5 is closed, and the leading portion of capsule inner core interconnecting piece 5 is the tube-shaped through hole for grafting capsule inner core, in capsule
The rear end of core interconnecting piece 5 is back taper body, and the bottom margin of back taper body is connected with telescopic segment main body 6；4 grafting of capsule inner core
To tube-shaped through hole, connector 1 is equipped with capsule attachment base, and the joint connection on telescopic body 6 is set in capsule attachment base
On, connector 1 coheres the other end for being fixed on 3 hollow lumen of connector shell.
Fluid path and the gas for being connected to Capsules and outside atmosphere are opened up on connector 1 described in the utility model
Access.
It is equipped in the utility model connector shell 3 and is led for preventing capsule retractable section extremely flexible and medical fluid can be played
The guiding of stream effect shunts rib 8, and guiding shunting rib 8, which is distributed in connector shell 3, corresponds to the interior of Capsules set-down location
On wall, guiding shunts rib 8 and extends along capsule retractable direction, and setting two or more equidistantly distributed is in connector shell hollow tube
Guiding on cavity wall shunts rib 8, to complete the guidance acted to capsule retractable section compression/extension and to the liquid of injection
Shunting guiding is carried out, 8 guiding is preferably provided with and shunts rib 8.
As shown in attached drawing 5 and attached drawing 9, capsule inner core 4 described in the utility model is plastic part, and capsule inner core 4 is by top plate 10
It is formed with the plug division 11 for being connected with Capsules, plug division 11 is in the shape of a rod, and is hollow rod shape, 11 bottom of plug division
Equipped with the notch 9 along body of rod extending direction, thus make 11 bottom of plug division that there is deformability, when being plugged to Capsules,
It can suitably shrink, be conducive to assembly manipulation, 10 upper surface of top plate of the capsule inner core 4 opens up diversion trench 13, preferably opens up ten
The center of word diversion trench, cross diversion trench is overlapped with roof center, is convenient for medical fluid water conservancy diversion when use.
The end outer of the plug division 11 of capsule inner core 4 described in the utility model is equipped with annular convex platform 12, in the capsule
The end of the tube-shaped through hole of core interconnecting piece leading portion is correspondingly provided with the interior annular groove being matched therewith, and capsule inner core is made to be plugged to pipe
When shape through-hole, annular convex platform is embedded in interior annular groove, connect capsule inner core closely with Capsules.
The hollow lumen inner wall and Capsules shape of connector shell 3 described in the utility model are adapted, i.e., corresponding empty
The part of heart-soothing capsule back taper body is equipped with the inclined-plane being adapted with Capsules outer wall, the capsule inner core connection of corresponding Capsules
Hollow lumen internal diameter and capsule inner core linkage section outer diameter are adapted at section, and gap forms liquid between Capsules and connector shell
Body channel.
The utility model branch connector is 45 ° of infusion ports.
The utility model is made of connector shell, connector, Capsules, capsule inner core, and wherein Capsules are stretched
Contracting main body is wavy, is conducive to compress and uphold, and compressibility and resilience are more preferable, and effectively prevent that capsule do not spring back asks
Topic, Capsules upper end and capsule inner core cooperate, and threeway shell is set there are two infusion port, and straight type has positive pressure effect, 45 ° of infusion ports
It is standard Luer locked joints without positive pressure effect.There are 8 ribs on connector shell inner wall, be conducive to the compression of capsule and return
Bullet and be conducive to carry out shunting water conservancy diversion to medical fluid；Capsules capsule upper end has a tube-shaped through hole, in tube-shaped through hole and capsule
Core interference fit, Capsules lower end are communicated with connector venthole, and air can be discharged in atmosphere in capsule when compressed, rebound
When outside air can enter in capsule；External infusion instrument is connected with the connector shell close to capsule inner core one end when use
It connecing, transfusion instrument squeezes capsule inner core and then compresses Capsules, and medical fluid is infused in connector case body by transfusion instrument at this time,
And the gap between Capsules and connector shell is delivered to connector, then exports through connector, and defeated through connector
It send；After infusion-completed, transfusion instrument is extracted, and compressed Capsules rebound, outside atmosphere is through the gas passage on connector
Into in Capsules, medical fluid continues to promote under rebound effect when Capsules are sprung back, and is infused to effectively prevent extracting
The blood back generated after instrument.
Compared with prior art, the compression and rebound of capsule are more stable, and number of fitting parts is few, and there is structure to close for the utility model
Reason assembles the significant advantages such as easy, production cost is low.
Claims (8)
1. a kind of positive pressure threeway is transfused attachment device, equipped with the connector shell with hollow lumen, connector case body side surface is set
There is branch connector, the lumen of branch connector is connected with the hollow lumen of connector shell, it is characterised in that is equipped in connector case body
Positive pressure mechanism, the positive pressure mechanism include Capsules, capsule inner core and connector, and the Capsules have wave empty
Heart telescopic body, one end of telescopic body are equipped with open joint connection, joint connection be connected with connector thus
It is connected to outside atmosphere, the other end of telescopic body is closed through capsule inner core interconnecting piece, and the leading portion of capsule inner core interconnecting piece is to use
In the tube-shaped through hole of grafting capsule inner core, the rear end of capsule inner core interconnecting piece is back taper body, the bottom margin of back taper body with
Telescopic segment main body is connected；Capsule inner core is plugged in tube-shaped through hole, and connector is equipped with capsule attachment base, on telescopic body
Joint connection is set on capsule attachment base, and connector coheres the other end for being fixed on connector shell hollow lumen.
2. a kind of positive pressure threeway according to claim 1 is transfused attachment device, it is characterised in that opened up on the connector
Fluid path and gas passage for being connected to Capsules and outside atmosphere.
3. a kind of positive pressure threeway according to claim 1 is transfused attachment device, it is characterised in that be equipped in connector case body
Guiding for preventing capsule retractable section extremely flexible and can play medical fluid guide functions shunts rib, and guiding shunts rib point
Cloth is corresponded in connector case body on the inner wall of Capsules set-down location, and guiding shunts rib and extends along capsule retractable direction, if
It sets guiding of two or more the equidistantly distributeds on connector shell hollow lumen inner wall and shunts rib, to complete to stretch capsule
The guidance of contracting section compression/extension movement simultaneously carries out shunting guiding to the liquid of injection.
4. a kind of positive pressure threeway according to claim 1 is transfused attachment device, it is characterised in that the capsule inner core is modeling
Materials and parts, plug division of the capsule inner core by top plate and for being connected with Capsules form, and plug division is in the shape of a rod, during plug division is
It is empty rod-shaped, and bottom is equipped with the notch along body of rod extending direction, so that shank bottom be made to have deformability, is being plugged to sky
It when heart-soothing capsule, can suitably shrink, be conducive to assembly manipulation, the cover top surface of the capsule inner core opens up diversion trench.
5. a kind of positive pressure threeway according to claim 4 is transfused attachment device, it is characterised in that open up cross diversion trench, ten
The center of word diversion trench is overlapped with roof center, is convenient for medical fluid water conservancy diversion when use.
6. a kind of positive pressure threeway according to claim 1 is transfused attachment device, it is characterised in that the capsule inner core is inserted
The end outer of socket part is equipped with annular convex platform, and the end of the tube-shaped through hole of the capsule inner core interconnecting piece leading portion is correspondingly provided with and it
The interior annular groove matched, when capsule inner core being made to be plugged to tube-shaped through hole, annular convex platform is embedded in interior annular groove, makes capsule
Inner core is closely connect with Capsules.
7. a kind of positive pressure threeway according to claim 1 is transfused attachment device, it is characterised in that the connector shell
Hollow lumen inner wall and Capsules shape are adapted, i.e., correspond to the part of Capsules back taper body equipped with outside Capsules
The adaptable inclined-plane of wall corresponds to hollow lumen internal diameter and capsule inner core linkage section outer diameter at the capsule inner core linkage section of Capsules
It is adapted, gap forms fluid passage between Capsules and connector shell.
8. a kind of positive pressure threeway according to claim 1 is transfused attachment device, it is characterised in that branch connector is 45 ° of infusions
Mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820077512.1U CN208405567U (en) | 2018-01-17 | 2018-01-17 | Positive pressure threeway is transfused attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820077512.1U CN208405567U (en) | 2018-01-17 | 2018-01-17 | Positive pressure threeway is transfused attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208405567U true CN208405567U (en) | 2019-01-22 |
Family
ID=65120890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820077512.1U Active CN208405567U (en) | 2018-01-17 | 2018-01-17 | Positive pressure threeway is transfused attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208405567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108030976A (en) * | 2018-01-17 | 2018-05-15 | 威海洁瑞医用制品有限公司 | Positive pressure threeway is transfused attachment device |
-
2018
- 2018-01-17 CN CN201820077512.1U patent/CN208405567U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108030976A (en) * | 2018-01-17 | 2018-05-15 | 威海洁瑞医用制品有限公司 | Positive pressure threeway is transfused attachment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 264200 No. 1 Weigao Road, Gao District, Weihai City, Shandong Province Patentee after: Weihai Jierui Medical Products Co., Ltd. Address before: 264200 No. 18 Xingshan Road, Gao District, Chucui Town, Huancui District, Weihai City, Shandong Province Patentee before: Weihai Jierui Medical Products Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |