CN209137601U - A kind of remaining needle resistance return device - Google Patents
A kind of remaining needle resistance return device Download PDFInfo
- Publication number
- CN209137601U CN209137601U CN201821731642.9U CN201821731642U CN209137601U CN 209137601 U CN209137601 U CN 209137601U CN 201821731642 U CN201821731642 U CN 201821731642U CN 209137601 U CN209137601 U CN 209137601U
- Authority
- CN
- China
- Prior art keywords
- channel
- return device
- remaining needle
- film
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 4
- 239000008280 blood Substances 0.000 abstract description 11
- 210000004369 blood Anatomy 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 238000001467 acupuncture Methods 0.000 abstract description 5
- 238000001802 infusion Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 30
- 229960001866 silicon dioxide Drugs 0.000 description 6
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a kind of remaining needle resistance return device, including threeway, threeway include main channel and wing passage, main channel is divided into big channel, back taper channel, passage aisle from top to bottom, support column is combined in big channel, support column is provided with vertical through-hole, the flexible barrier plug of cooperation in through-hole；The big end in back taper channel is connected to big channel, and the small end in back taper channel is connected to passage aisle；Indwelling hose is provided in passage aisle；It is peripherally disposed fluted on back taper hose inner wall, resistance return device is provided in groove.A kind of remaining needle resistance return device of the utility model hinders back film as the liquid of remaining needle using the bullet of one-way flow setting and passes in and out isolating device, make during with retention needle infusion or blood drawing it is possible to prevente effectively from line clogging caused by causing blood samples of patients to flow back because of acupuncture treatment, it not will cause and replace that remaining needle is secondary to cause pain to patient because of blocking, Economy type medicine cost, therefore solve the realistic problem of the existing technology that can not effectively prevent blood backflow.
Description
Technical field
The utility model relates to arrive medical instruments field, it is related specifically to a kind of remaining needle resistance return device.
Background technique
Venous detaining needle is also known as venous catheter needle, and the building block of core includes that can be retained in leading for endovascular softness
Pipe/casing, and the guiding puncture needle core of stainless steel.Conduit and needle core punctured into together when use it is intravascular, when conduit is complete
After portion enters blood vessel, needle core is withdrawn out, only by soft catheter retaining in the blood vessels to carry out infusion treatment.
In remaining needle actual use, because of pressure difference existing for human vas and the external world, patient's blood when will appear acupuncture treatment often
Liquid is flowed back into remaining needle extension tube by threeway, is caused blocking in pipe, is influenced to be infused, must just transfer to remaining needle at this time, weight
New replacement remaining needle is had an acupuncture treatment, this is just that patient brings secondary pain, causes psychological pressure.Meanwhile remaining needle is replaced again,
Also additional medical treatment cost is brought for patient.Therefore the prior art of the remaining needle disadvantage low there are easy blocking, economy.
Summary of the invention
For the low realistic problem of solution easy blocking of the existing technology, economy, the utility model proposes a kind of indwellings
Needle hinders return device.
The utility model proposes technical solution be: a kind of remaining needle hinders return device, including threeway, threeway include main channel
And wing passage, wing passage are connected with extension tube；Main channel is divided into big channel, back taper channel, passage aisle from top to bottom, in big channel
It is fixed with support column, support column is provided with vertical through-hole, and elastic barrier plug is combined in through-hole；The big mouth in back taper channel with
Big channel connection, the osculum in back taper channel are connected to passage aisle；Indwelling hose is provided in passage aisle；
Indwelling hose includes back taper hose and long straight hose, and back taper hose is equal with back taper channel taper, outside long straight hose
Diameter and passage aisle internal diameter cooperate；
It is peripherally disposed fluted on back taper hose inner wall, resistance return device is provided in groove.
Further, elasticity barrier plug described above is ladder cylinder, is above path cylinder, the through-hole with support column
It is fitted close；Down it is major diameter cylinder, is fitted close with big channel internal diameter.
Further, resistance return device flakiness shape described above, centre is provided with through-hole, silica gel plug is arranged inside.
Further, resistance return device described above is symmetrically set with through-hole, is provided in left through-hole forward to hindering back
Film is provided with descriscent in right through-hole and hinders back film, symmetrical forward to hindering back film with descriscent and hindering back thin film center.
Further, described above forward to hindering back film and to hinder back the film of film include three or more curved surfaces for descriscent
Film valve.
Further, it is described above be provided with forward to the edge for hindering back the curved surface film valve that film and descriscent hinder back film it is close
Sealing.
A kind of advantageous effects of remaining needle resistance return device of the utility model are: a kind of remaining needle of the utility model hinders back
Device hinder back liquid disengaging isolating device of the film as remaining needle using the bullet of one-way flow setting, makes with retention needle infusion
Or it is possible to prevente effectively from line clogging caused by causing blood samples of patients to flow back because of acupuncture treatment, not will cause due to blocking during blood drawing
Remaining needle is secondary causes pain to patient for replacement, is also patient's Economy type medicine cost, thus solve it is of the existing technology easily
The low realistic problem of blocking, economy.
Detailed description of the invention
Attached drawing 1 is the using renderings of the utility model；
Attached drawing 2 is the top view for hindering return device；
Attached drawing 3 is to hinder return device forward to state diagram when infusion；
Attached drawing 4 is state diagram when hindering the blood drawing of return device descriscent；
1, remaining needle in figure, 10, main channel, 20, wing passage, 101, big channel, 102, back taper channel, 103, passage aisle,
2, support column, 3, elastic barrier plug, 4, extension tube, 5, resistance return device, 6, indwelling hose, 61, back taper hose, 62, long straight
Hose, 7, silica gel plug, 8, sealant.
A kind of remaining needle of the utility model resistance return device is further described in the following with reference to the drawings and specific embodiments.
Specific embodiment
In the utility model description, the temporald eixis such as relational language "upper", "lower", "left", "right" position is only based on attached
Orientation shown in figure and for ease of description simplify the utility model, be not the components must have orientation, construction,
Therefore it should not be understood as limiting the present invention.
Embodiment 1
As shown in Fig. 1, a kind of remaining needle hinders return device, including threeway, threeway include main channel 10 and wing passage 20, side
Channel 20 is connected with extension tube 4.Extension tube is connect with extraneous perfusion tube.
Main channel 10 is divided into big channel 101, back taper channel 102, passage aisle 103 from top to bottom, is combined in big channel 101
Support column 2, support column 2 are provided with vertical through-hole, the flexible barrier plug 3 of cooperation in through-hole.Support column 2 supports elasticity barrier plug 3.
Elasticity barrier 3 materials of plug are special silica-gel, and it is above path cylinder that elasticity barrier plug 3, which is ladder cylinder, logical with support column 2
Hole is fitted close, and lower is major diameter cylinder, is fitted close with big 101 internal diameter of channel.
The great Kou in back taper channel 102 is connected to big channel 101, and osculum is connected to passage aisle 103.103 bore of passage aisle is small
In big 101 bore of channel.Indwelling hose 6 is provided in passage aisle 103.Indwelling hose 6 includes back taper hose 61 and long straight hose
62, back taper hose 61 is equal with 102 taper of back taper channel, and long 62 outer diameter of straight hose and 103 internal diameter of passage aisle cooperate.
Above-mentioned channel and pipe junction is all sealed with sealant.
Peripherally disposed fluted at one third above 61 inner wall of back taper hose, dress is returned in the resistance being provided in groove
Set 5.5 flakiness shape of return device is hindered, centre is provided with through-hole, silica gel plug 7 is arranged inside.Bullet is passed through when remaining needle 1 is not transferred to
Property barrier plug 3, big channel 101, back taper channel 102, silica gel plug 7, indwelling hose 6, after extraction silica gel plug 7 and elasticity barrier plug 3
Restore elasticity and be closed, blood water conservancy diversion is prevented to enter extension tube 4.
Resistance return device 5 is symmetrically set with through-hole, is provided in left through-hole forward to film 51 is hindered back, is arranged in right through-hole
There is descriscent to hinder back film 52, hinders back 52 central symmetry of film with descriscent forward to film 51 is hindered back.
Forward to hindering back film 51 and descriscent hinders back film 52 and all respectively includes three elastic surface film valves.
The edge for hindering back the curved surface film valve that film 51 hinders back film 52 with descriscent is provided with sealant 8.
As shown in Fig. 3, it forward under transfusion condition, is opened forward to the elastic surface film valve for hindering back film 51, descriscent resistance
The elasticity for returning film valve 52 hinders back the closing of film valve.
As shown in Fig. 4, it when descriscent is drawn blood, is closed forward to the elastic surface film valve for hindering back film 51, descriscent resistance
The elasticity for returning film valve 52 hinders back film valve opening.
Obviously, a kind of remaining needle resistance return device of the utility model hinders back film as indwelling using the bullet of one-way flow setting
The liquid of needle passes in and out isolating device, makes during with retention needle infusion or blood drawing it is possible to prevente effectively from because acupuncture treatment causes patient
Blood backflow causes line clogging, not will cause and replaces that remaining needle is secondary to cause pain to patient because of blocking, is also patient's section
About medical treatment cost has progress meaning.
The above-mentioned preferred embodiment for the utility model, it should be understood that those skilled in the art is without creative work
It according to the present utility model can conceive and related skill is obtained by logic analysis, reasoning or experiment etc. on the basis of existing technology
Art scheme, therefore these related art schemes all should be in the protection scope of present claims.
Claims (6)
1. a kind of remaining needle hinders return device, including threeway, it is characterised in that: threeway includes main channel (10) and wing passage (20),
Wing passage (20) is connected with extension tube (4)；Main channel (10) is divided into big channel (101), back taper channel (102), small from top to bottom
Channel (103), big channel (101) is interior to be fixed with support column (2), and support column (2) is provided with vertically through-hole, is combined in through-hole
Elastic barrier plug (3)；The great Kou in back taper channel (102) is connected to big channel (101), the osculum of back taper channel (102) with
Passage aisle (103) connection；Indwelling hose (6) are provided in passage aisle (103)；
Indwelling hose (6) includes back taper hose (61) and long straight hose (62), back taper hose (61) and back taper channel (102) taper
Equal, long straight hose (62) outer diameter and passage aisle (103) internal diameter cooperate；
It is peripherally disposed fluted on back taper hose (61) inner wall, resistance return device (5) is provided in groove.
2. a kind of remaining needle hinders return device according to claim 1, it is characterised in that: the elasticity barrier plug (3) is rank
Cleat stanchion body is above path cylinder, is fitted close with the through-hole of support column (2)；It is down major diameter cylinder, with big channel (101)
Internal diameter is fitted close.
3. a kind of remaining needle hinders return device according to claim 1, it is characterised in that: described resistance return device (5) flakiness
Shape, centre are provided with through-hole, and silica gel plug (7) are arranged inside.
4. a kind of remaining needle hinders return device according to claim 1, it is characterised in that: resistance return device (5) left and right pair
Title is provided with through-hole, is provided in left through-hole forward to hindering back film (51), descriscent is provided in right through-hole and hinders go back to film (52), institute
It states forward to hindering go back to film (51) and the descriscent hinders back film (52) central symmetry.
5. a kind of remaining needle hinders return device according to claim 4, it is characterised in that: it is described forward to hinder back film (51) and
The descriscent hinders back the elastic surface film valve that film (52) all respectively includes three or more.
6. hindering return device according to a kind of remaining needle of claim 4 or 5, it is characterised in that: described forward to hindering back film
(51) edge for the elastic surface film valve for hindering back film (52) with descriscent is provided with sealant (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821731642.9U CN209137601U (en) | 2018-10-25 | 2018-10-25 | A kind of remaining needle resistance return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821731642.9U CN209137601U (en) | 2018-10-25 | 2018-10-25 | A kind of remaining needle resistance return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209137601U true CN209137601U (en) | 2019-07-23 |
Family
ID=67269391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821731642.9U Expired - Fee Related CN209137601U (en) | 2018-10-25 | 2018-10-25 | A kind of remaining needle resistance return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209137601U (en) |
-
2018
- 2018-10-25 CN CN201821731642.9U patent/CN209137601U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211228 Address after: 400042 No. 10 Changjiang Road, Yuzhong District, Chongqing Patentee after: CHINESE PEOPLE'S LIBERATION ARMY ARMY SPECIALIZED MEDICAL CENTER Address before: 401329 room 5-1, unit 1, building 65, No. 988, LanMei Road, Jiulongpo District, Chongqing Patentee before: Zhu Xiaoju Patentee before: Yu Tao |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 |