CN209137603U - A kind of anti-venous indwelling needle - Google Patents
A kind of anti-venous indwelling needle Download PDFInfo
- Publication number
- CN209137603U CN209137603U CN201821841417.0U CN201821841417U CN209137603U CN 209137603 U CN209137603 U CN 209137603U CN 201821841417 U CN201821841417 U CN 201821841417U CN 209137603 U CN209137603 U CN 209137603U
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- Prior art keywords
- needle
- guidance
- core
- guard
- hole
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- Expired - Fee Related
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- 230000000903 blocking effect Effects 0.000 claims description 46
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 210000003462 vein Anatomy 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000008280 blood Substances 0.000 abstract description 17
- 210000004369 blood Anatomy 0.000 abstract description 17
- 238000000605 extraction Methods 0.000 abstract description 10
- 206010073310 Occupational exposures Diseases 0.000 abstract description 6
- 231100000675 occupational exposure Toxicity 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 206010049976 Impatience Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to field of medical article technology, provide a kind of anti-venous indwelling needle, it is intended to solve the problems, such as existing anti-venous indwelling needle in guidance needle core extraction moment blood splashing.The anti-venous indwelling needle includes venous detaining needle ontology and flexible needle guard, there is accommodating chamber inside the flexibility needle guard, the flexibility needle guard is sheathed on the guidance needle core of the venous detaining needle ontology, the flexibility needle guard is configured as when the guidance needle core is extracted out outward, the flexibility needle guard is contained in the needle point of the guidance needle core in the accommodating chamber of the flexible needle guard along the needle point that the guidance needle core slides onto the guidance needle core.Since after guiding needle core to extract from flexible sleeve, flexible needle guard can be slid at needle point and shroud needle point, on the one hand, can prevent needle-penetrating occupational exposure；On the other hand, it is closed in due to needle point in closed accommodating chamber, can effectively accommodate the blood of needle point, prevent blood splashing, pollute.
Description
Technical field
The utility model relates to field of medical article technology, in particular to a kind of anti-venous indwelling needle.
Background technique
Venous detaining needle is also known as venous catheter needle, pain caused by use can be reduced infant due to venipuncture repeatedly with
And to the fear having an injection, mitigate the impatience of parent, it is convenient for clinical application, mitigates the workload of clinical nurse.Vein stays
It sets that needle is easy to operate, suitable for the puncture at any position, is clinically able to commonly used.The core composition portion of venous detaining needle
Part includes the threeway catheter block with first interface, second interface and bifurcated interface, is fixedly connected on the soft of the first interface
Property casing, is fixedly connected on the extension tube of the bifurcated interface and is set to the needle stand for being removably connected to the second interface
Batching pig within the threeway catheter block；Wherein, fixed on needle stand to be plugged with guidance needle core, guidance needle core passes through batching pig simultaneously
It is inserted into flexible sleeve.In use, by flexible sleeve and guidance needle core puncture into together it is intravascular, when flexible sleeve fully enters
After blood vessel, guidance needle core is withdrawn, by flexible sleeve indwelling in the blood vessels to carry out infusion treatment.
Common venous detaining needle, either open or closed, the guidance needle core for being used to puncture is from flexibility
After extracting in casing, the needle point of needle core is guided to be an exposure to outer, the medical staff for executing operation is possible to be made by needle pricks
At needle-penetrating occupational exposure.
The needle-penetrating occupational exposure of medical staff in order to prevent, a kind of existing anti-venous indwelling needle, such vein stay
It sets in the threeway catheter block of needle and is provided with stainless steel needle guard, after the guidance needle core for puncture is extracted from flexible sleeve, no
Rust steel needle set can cover syringe needle.But the lower end of stainless steel needle guard is openning shape, stainless steel needle guard cannot accommodate blood.Though therefore
Right this venous detaining needle can prevent needle thorn dangerous, but not can effectively prevent blood splashing when guidance needle core extracts moment out, dirty
Contaminate environment.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of novel anti-venous indwelling needles, it is intended to solve
Existing anti-venous indwelling needle is the problem of guiding needle core extraction moment blood splashing.
To achieve the goals above, the utility model the following technical schemes are provided:
A kind of anti-venous indwelling needle, including venous detaining needle ontology and flexible needle guard, flexibility needle guard inside tool
There is accommodating chamber, the flexibility needle guard is sheathed on the guidance needle core of the venous detaining needle ontology, and the flexibility needle guard is configured
For when the guidance needle core is extracted out outward, the flexibility needle guard slides onto the needle point of the guidance needle core along the guidance needle core
Place is contained in the needle point of the guidance needle core in the accommodating chamber of the flexible needle guard.
In the technical program, since after guiding needle core to extract from flexible sleeve, flexible needle guard can be slid onto needle point
Needle point is simultaneously shrouded in place, on the one hand, can prevent needle-penetrating occupational exposure；On the other hand, due to needle point be closed in it is more closed
Accommodating chamber in, therefore can effectively accommodate the blood of needle point, prevent blood splashing, pollute.
As a preferred embodiment of the above technical solution, the first blocking portion of protrusion, the flexibility are provided on the guidance needle core
It is provided on needle guard for the through-hole that passes through of guidance needle core, the upper through-hole closer to the needle point of flexible needle set is the
One through-hole, the aperture of the first through hole are greater than the aperture of remaining through-hole, and the aperture of remaining through-hole is less than first resistance
The width of stopper.The beneficial effect of this optimal technical scheme is, during gradually extraction guides needle core outward, the first blocking portion
First through hole can be more easily passed first, the needle point section of needle core is guided gradually to be received chamber package at this time, when the second resistance
When stopper encounters remaining through-hole, since the aperture of remaining through-hole is less than the width of first blocking portion, the first blocking portion
It is difficult to through remaining through-hole, therefore needle core is guided flexible needle set can be taken away and be extracted out, when extraction, flexible needle guard is shrouded in needle
At point.
As a preferred embodiment of the above technical solution, the flexible needle guard is located at the threeway catheter block of the venous detaining needle ontology
Within, the second blocking portion skidded off outward for limiting the flexible needle guard is provided on the inner wall of the threeway catheter block；Institute
It states flexible needle guard to be additionally configured to when the guidance needle core is extracted out outward, the first blocking portion on the guidance needle core passes through institute
The first through hole of flexible needle guard is stated, the first blocking portion of the guidance needle core is stopped by remaining through-hole of the flexible needle guard, when
After first blocking portion of the guidance needle core is stopped by remaining through-hole of the flexible needle guard, the flexibility needle guard is with the guidance
Needle core passes through second blocking portion together.The beneficial effect of this optimal technical scheme is, can by the way that the second blocking portion is arranged
To prevent flexible needle set from skidding off outward automatically, or when guiding needle core to exit outward, flexible needle guard is directly guided needle core
Shank section is taken out of.
As a preferred embodiment of the above technical solution, the aperture of the first through hole is less than or equal to the width of first blocking portion
Degree.The beneficial effect of this optimal technical scheme is, since the aperture of first through hole is smaller, the accommodating chamber can be enhanced
Airtightness, improve to the receiving performance of blood.
As a preferred embodiment of the above technical solution, the flexible needle guard includes at least two sub- needle guards being one another in series, each
There is accommodating chamber in sub- needle guard, the through-hole passed through for the guidance needle core is provided on every sub- needle guard；The flexibility needle guard
Sub- needle guard closer to the needle point is the first sub- needle guard, and the length of the first sub- needle guard is greater than first blocking portion and institute
State the distance between needle point.The beneficial effect of this optimal technical scheme is, by the way that multiple flexible needle guards being one another in series are arranged,
The quantity of remaining through-hole can be increased, so that the anti-needle thorn remaining needle be made more to insure.Even if the first blocking portion has passed through
Remaining through-hole described in first, also having second, third remaining described through-hole can be used for stopping first blocking portion.
As a preferred embodiment of the above technical solution, the flexible needle guard is made of latex material.This optimal technical scheme has
Beneficial effect is that latex has wide application in medical domain, and the Oak Tree albumen contained can inhibit germ and anaphylactogen
It is latent.In addition, it also has super-elastic and fungi-proofing property of breathing freely.
As a preferred embodiment of the above technical solution, the length of the needle stand of the venous detaining needle ontology is more than or equal to 1cm.This is excellent
The beneficial effect of selecting technology scheme is, since the needle stand of the more general venous detaining needle of the length of needle stand is longer, is convenient for medical care people
Member is affectedly bashful.
As a preferred embodiment of the above technical solution, the tail end of the needle stand is provided with the outer rim of protrusion.This optimal technical scheme
Beneficial effect be, by the way that the outer rim is arranged, not only can be further affectedly bashful convenient for medical staff, can also improve and be affectedly bashful
Stability, and then improve the stability punctured.
Compared with prior art, the utility model has the following beneficial effects:
1, since after guiding needle core to extract from flexible sleeve, flexible needle guard can be slid at needle point and shroud needle
Point, on the one hand, needle-penetrating occupational exposure can be prevented；Another convenience is closed in more closed accommodating chamber due to needle point,
Therefore the blood that can effectively accommodate needle point, prevents blood splashing, pollutes.
2, compared to existing anti-venous indwelling needle, the structure of anti-venous indwelling needle provided by the utility model
Simpler, production and processing cost is lower.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing briefly introduce, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be seen
Work is the restriction to range, for those of ordinary skill in the art, without creative efforts, can be with
Other relevant drawings are obtained according to these attached drawings.
Fig. 1 show the structural schematic diagram of the anti-venous indwelling needle provided in embodiment.
Fig. 2 show the use schematic diagram of the anti-venous indwelling needle provided in embodiment.
Fig. 3 show the anti-venous indwelling needle provided in embodiment another using schematic diagram.
Figure label explanation:
10- flexible sleeve；11- accommodating chamber；The second through-hole of 12-；Remaining through-hole of 13-；20- threeway catheter block；21- first connects
Mouthful；22- second interface；23- bifurcated interface；24- flexible sleeve；25- needle stand；26- extension tube；27- batching pig；28- guides needle
Core；29- needle point；The first blocking portion of 30-；The second blocking portion of 40-；50- outer rim.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu completely describes.It should be appreciated that specific embodiment described herein is used only for explaining the utility model, it is not used to limit
Determine the utility model.Based on the embodiments of the present invention, those skilled in the art are in no creative work under the premise of institute
The every other embodiment obtained, belongs to the protection scope of the utility model.
It please refers to shown in Fig. 1 and Fig. 2, present embodiments provides a kind of anti-venous indwelling needle, including venous detaining needle
Ontology and flexible needle guard 10 have accommodating chamber 11 inside the flexibility needle guard 10, and the flexibility needle guard 10 is sheathed on the vein
On the guidance needle core 28 of remaining needle ontology, the flexibility needle guard 10 is configured as when 28 extraction outward of guidance needle core, institute
Flexible needle guard 10 is stated along the needle point 29 that the guidance needle core 28 slides onto the guidance needle core 28, makes the guidance needle core 28
Needle point 29 is contained in the accommodating chamber 11 of the flexible needle guard 10.
In use, flexible needle guard 10 can be slid onto needle point due to after guiding needle core 28 to extract from flexible sleeve 24
At 29 and shroud needle point 29, on the one hand, needle-penetrating occupational exposure can be prevented；On the other hand, due to needle point 29 be closed in compared with
For in closed accommodating chamber 11, after needle point 29 is shrouded, the blood on needle point 29 is received chamber 11 and is collected into, due to blood
Atmospheric pressure outside surface tension and accommodating chamber 11 makes blood be not easy to ooze out out of accommodating chamber 11, therefore can effectively accommodate needle
The blood of point 29, prevents blood splashing, pollutes.
In addition, as shown in Figure 1, the specific structure of venous detaining needle ontology may include connecing with first interface 21, second
The threeway catheter block 20 of mouth 22 and bifurcated interface 23, detachably connects the flexible sleeve 24 for being fixedly connected on the first interface 21
It is connected to the needle stand 25 of the second interface 22, be fixedly connected on the extension tube 26 of the bifurcated interface 23 and is set to the threeway
Batching pig 27 within catheter block 20；Wherein, fixed on needle stand 25 to be plugged with guidance needle core 28, guidance needle core 28 passes through batching pig
It 27 and is inserted into flexible sleeve 24.It should be appreciated that the specific structure of the venous detaining needle ontology is not limited thereto, it is described
The specific structure of venous detaining needle ontology is not used to limit the utility model.
Based on above-mentioned anti-venous indwelling needle, the present embodiment provides the citings of following embodiment.
Specifically, please referring to shown in Fig. 1 and Fig. 2, the first blocking portion 30 of protrusion, institute are provided on the guidance needle core 28
Stating the first lug boss can be integrally formed with guidance needle core 28, for example, the height of the first blocking portion 30 can between 0.1~
0.5mm.The through-hole passed through for the guidance needle core 28, more leaning on the flexibility needle guard 10 are provided on the flexibility needle guard 10
The through-hole of the nearly needle point 29 is first through hole 12, and the aperture of the first through hole 12 is greater than the aperture of remaining through-hole 13, described
The aperture of remaining through-hole 13 is less than the width of first blocking portion 30, and the width of the first blocking portion 30 described herein refers to
It is the thickness for guiding the diameter of needle core 28 to add the first blocking portion 30.During gradually extraction guides needle core 28 outward, first stops
Portion 30 can more easily pass first through hole 12 first, and 29 sections of needle point of needle core 28 is guided gradually to be received the packet of chamber 11 at this time
It wraps up in, when the second blocking portion 40 encounters remaining through-hole 13, since the aperture of remaining through-hole 13 is less than first blocking portion 30
Width, therefore the first blocking portion 30 is difficult to through remaining through-hole 13, therefore guides needle core 28 that can take away flexible needle guard 10 simultaneously
Extraction, when extraction, flexible needle guard 10 shrouds at needle point 29.
In view of during guidance needle core 28 gradually extract, the shank section of guidance needle core 28 is to described on flexible needle guard 10
The frictional force of remaining through-hole 13 may synchronize outside extraction with flexible needle guard 10, cause flexible needle guard 10 cannot be along guidance needle
At core 28 Relative sliding to needle point 29, therefore it can be provided on the inner wall of the threeway catheter block 20 described soft for limiting
The second blocking portion 40 that property needle guard 10 skids off outward, second blocking portion 40 can be a circle flange, second blocking portion
40 can be integrally formed with threeway catheter block 20.It is described flexibility needle guard 10 be located within the threeway catheter block 20, and positioned at every
From between plug 27 and the second blocking portion 40.The first resistance when 28 extraction outward of guidance needle core, on the guidance needle core 28
Stopper 30 is by the first through hole 12 of the flexible needle guard 10, and the first blocking portion 30 of the guidance needle core 28 is by the flexible needle
Remaining through-hole 13 of set 10 stops, when the first blocking portion 30 of the guidance needle core 28 is by remaining through-hole of the flexible needle guard 10
After 13 stop, the flexibility needle guard 10 passes through second blocking portion 40 with the guidance needle core 28.
In order to further enhance the airtightness of the accommodating chamber 11, the receiving performance to blood, the first through hole are improved
12 aperture is less than or equal to the width of first blocking portion 30.The first through hole 12 to be passed through of first blocking portion 30 needs certain
External force make first through hole 12 aperture deform expand, after the first blocking portion 30 smoothly passes through first through hole 12, first through hole 12
Aperture shrink, therefore the airtightness of the accommodating chamber 11 is more preferable.
In addition, the flexibility needle guard 10 includes at least two sub- needle guards being one another in series, often shown in please referring to Fig.1 to Fig.3
There is accommodating chamber 11 in a sub- needle guard, the through-hole passed through for the guidance needle core 28 is provided on every sub- needle guard；The flexibility
The sub- needle guard closer to the needle point 29 of needle guard 10 is the first sub- needle guard, and the length of the first sub- needle guard is greater than described first
The distance between blocking portion 30 and the needle point 29.By the way that multiple flexible needle guards 10 being one another in series are arranged, can increase described
The quantity of remaining through-hole 13, so that the anti-needle thorn remaining needle be made more to insure.Even if the first blocking portion 30 has passed through first institute
State remaining through-hole 13, also have second described in remaining through-hole 13 can be used for stopping first blocking portion 30.
The flexibility needle tubing can specifically be made of latex material, and latex has wide application in medical domain, contains
Some Oak Tree albumen can inhibit germ and anaphylactogen latent.In addition, it also has super-elastic and fungi-proofing property of breathing freely.
It is affectedly bashful for the ease of medical staff, the needle stand 25 of the venous detaining needle ontology can extend, for example, the vein
The length of the needle stand 25 of remaining needle ontology is more than or equal to 1cm.Also, raised outer rim can be also provided in the tail end of needle stand 25
50.By the setting outer rim 50, it not only can be further affectedly bashful convenient for medical staff, can also improve and be affectedly bashful stability, into
And improve the stability punctured.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art can readily occur in variation within the technical scope disclosed by the utility model
Or replacement, should all it cover within the protection scope of the present utility model.
Claims (8)
1. a kind of anti-venous indwelling needle, which is characterized in that including venous detaining needle ontology and flexible needle guard, the flexible needle
Set is internal to have accommodating chamber, and the flexibility needle guard is sheathed on the guidance needle core of the venous detaining needle ontology, the flexible needle
Set is configured as when the guidance needle core is extracted out outward, and the flexibility needle guard slides onto the guidance needle along the guidance needle core
At the needle point of core, it is contained in the needle point of the guidance needle core in the accommodating chamber of the flexible needle guard.
2. anti-venous indwelling needle according to claim 1, which is characterized in that be provided with protrusion on the guidance needle core
The first blocking portion, the flexible needle, which is put on, to be provided with for the through-hole that passes through of guidance needle core, on the flexible needle set more
Through-hole close to the needle point is first through hole, and the aperture of the first through hole is greater than the aperture of remaining through-hole, and described remaining is logical
The aperture in hole is less than the width of first blocking portion.
3. anti-venous indwelling needle according to claim 2, which is characterized in that the flexibility needle guard is located at the vein
Within the threeway catheter block of remaining needle ontology, be provided on the inner wall of the threeway catheter block for limit the flexible needle guard to
The second blocking portion skidded off outside；The flexibility needle guard is additionally configured to when the guidance needle core is extracted out outward, the guidance needle
The first blocking portion on core is by the first through hole of the flexible needle guard, and the first blocking portion of the guidance needle core is by the flexibility
Remaining through-hole of needle guard stops, after the first blocking portion of the guidance needle core is stopped by remaining through-hole of the flexible needle guard,
The flexibility needle guard passes through second blocking portion with the guidance needle core.
4. anti-venous indwelling needle according to claim 3, which is characterized in that the aperture of the first through hole be less than etc.
In the width of first blocking portion.
5. anti-venous indwelling needle according to claim 4, which is characterized in that the flexibility needle guard includes at least two
The sub- needle guard being one another in series, every sub- needle guard is interior to have accommodating chamber, is provided on every sub- needle guard and passes through for the guidance needle core
Through-hole；The sub- needle guard closer to the needle point of the flexibility needle guard is the first sub- needle guard, the length of the first sub- needle guard
Greater than the distance between first blocking portion and the needle point.
6. anti-venous indwelling needle according to claim 1, which is characterized in that the flexibility needle guard is by latex material system
At.
7. anti-venous indwelling needle according to claim 1, which is characterized in that the needle stand of the venous detaining needle ontology
Length be more than or equal to 1cm.
8. anti-venous indwelling needle according to claim 7, which is characterized in that the tail end of the needle stand is provided with protrusion
Outer rim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821841417.0U CN209137603U (en) | 2018-11-08 | 2018-11-08 | A kind of anti-venous indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821841417.0U CN209137603U (en) | 2018-11-08 | 2018-11-08 | A kind of anti-venous indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209137603U true CN209137603U (en) | 2019-07-23 |
Family
ID=67285032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821841417.0U Expired - Fee Related CN209137603U (en) | 2018-11-08 | 2018-11-08 | A kind of anti-venous indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209137603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975061A (en) * | 2019-11-19 | 2020-04-10 | 王君霞 | Puncture-preventing remaining needle capable of continuously supplying liquid |
-
2018
- 2018-11-08 CN CN201821841417.0U patent/CN209137603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975061A (en) * | 2019-11-19 | 2020-04-10 | 王君霞 | Puncture-preventing remaining needle capable of continuously supplying liquid |
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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: 20190726 Address after: 450000 No. 33 Longhu Waihuan East Road, Zhengdong New District, Zhengzhou City, Henan Province Patentee after: ZHENGZHOU CHILDREN'S Hospital Address before: 450000 Jinshui District, Zhengzhou City, Henan Province, 44, No. 4 Building, 38 Jingwu Road Patentee before: Jin Weili |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |