CN106421982A - Safe needle guard and safe blood taking needle cylinder - Google Patents
Safe needle guard and safe blood taking needle cylinder Download PDFInfo
- Publication number
- CN106421982A CN106421982A CN201610805486.5A CN201610805486A CN106421982A CN 106421982 A CN106421982 A CN 106421982A CN 201610805486 A CN201610805486 A CN 201610805486A CN 106421982 A CN106421982 A CN 106421982A
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- CN
- China
- Prior art keywords
- needle
- protective case
- main body
- pin main
- safe
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- 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
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
- A61B5/150564—Protectors removed by pulling or pushing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a safe needle guard. The safe needle guard comprises a needle body and a protective sleeve rotationally arranged on the needle body in a sleeving mode through a connecting structure; the connecting structure comprises at least one sliding groove formed in the protective sleeve and at least one sliding part arranged on the needle body and embedded into the corresponding sliding groove in a sliding mode; at least one elastic stop part is arranged at the tail end of each sliding groove; during retraction, a needle head of the needle body retracts into an inner cavity of the protective sleeve, or the protective sleeve slides towards the needle head of the needle body, and when the sliding parts go across the elastic stop parts, the needle head retracts back to the inner cavity of the protective sleeve; therefore, the needle body slides to the head ends or the tail ends of the sliding grooves to the largest extent and only has the sliding direction, the stretching length of the needle body is always controllable, and when the needle head is not recovered after damage caused by stretching too long, the needle head can be retracted into the inner cavity of the protective sleeve just by directly pushing and pulling the needle body or the protective sleeve without rotating the needle body or the protective sleeve and will not stretch out of the protective sleeve again under the interaction of the sliding parts and the elastic stop parts.
Description
Technical field
The present invention relates to a kind of use after needle guard mechanisms and in particular to a kind of peace that can be used for various medical needle classes
Full needle guard and safety blood taking syringe.
Background technology
Using after finishing, most of people can lose the medical needle class such as injection needle, blood taking needle, dispensing needle, flushing needle conveniently
Abandon, because the medical needle class such as traditional injection needle, blood taking needle, dispensing needle, flushing needle does not have safety guard, clear up discarded object
During with reclaiming, often can be there is the risk of cross-infection by injuring that pin is pricked.
For this reason, Chinese patent literature CN104800925A discloses a kind of Antipricking transfusion needle, it is by syringe needle, Tip protection
Set, needle handle, protective case, flexible pipe and protective case handle composition, syringe needle is passed through to have an injection and operates needle handle to be connected with flexible pipe, and syringe needle is externally provided with
Protective sleeve of syringe needle, flexible pipe is externally provided with the protective case with protective case handle, and protective case is provided with recovery draw-in groove;Transfusion needle has used
Afterwards, pinch protective case handle and push to top to syringe needle direction, syringe needle fully enters in recovery draw-in groove, reach and prevent discarded transfusion
The purpose of needlestick injury people;Be provided with fixing card in the recovery draw-in groove of protective case, so that the protective case being pushed to top is fixed and not
Glide.
But the Antipricking transfusion needle described in above-mentioned patent document has the following disadvantages:In this Antipricking transfusion needle
In, described recovery draw-in groove is the chute being provided with opening towards described syringe needle one end, and when not using, described needle handle skids off described recovery
Draw-in groove is simultaneously connected with fixation with the application head of described protective case after rotating to an angle, and so leads to the problem at least two parties face:
1st, the stickup between protective case and needle handle is unreliable, in transport or handling process, is susceptible to each other separate and syringe needle
Partly easily occur to separate towards the direction away from described protective case, cause syringe needle easily impaired;2nd, after syringe needle is using finishing, need
First protective case to be separated with needle handle and to rotate so that described needle handle could be towards described syringe needle after corresponding to described recovery draw-in groove
Direction pushes described protective case, and whole Tip protection reclaimer operation bothers and time-consuming, reduces the operating efficiency of medical personnel.
Content of the invention
For this reason, the technical problem to be solved is Antipricking transfusion needle of the prior art in use
Needle portion fixation not firm, easily impaired and Tip protection reclaimer operation trouble, time-consuming, reduce the work effect of medical personnel
Rate;And then provide a kind of mutual connection safe needle sleeve firm and simple to operate, it is further provided there is this safe needle sleeve
Safety blood taking syringe.
For solving above-mentioned technical problem, a kind of safe needle sleeve of the present invention, it is included pin main body, is rotated by attachment structure
It is set in the protective case in pin main body, described attachment structure includes at least one chute on described protective case, at least one
Individual in described pin main body and slide and be embedded in sliding part in described chute;Wherein, the tail end of described chute be additionally provided with to
A few elastic barrier portion, during recovery, the syringe needle of described pin main body is retracted or described protection towards in the inner chamber of described protective case
Set slides towards the syringe needle of described pin main body, when described sliding part crosses described elastic barrier portion, the described syringe needle described guarantor of retraction
The inner chamber of sheath.
Described chute is molded on the internal chamber wall of described protective case, and described sliding part is set to be molded over the pin of described pin main body
The first lug boss on seat, described elastic barrier portion is set to be molded over the tail end of described chute and the inwardly projecting second projection
Portion;Wherein, described first lug boss has the first inclined-plane, and described second lug boss has can agreeing with described first inclined-plane
Two inclined-planes.
Also include the position limiting structure that described pin main body is positioned, described position limiting structure includes being molded over described protective case
Stopper slot on inwall, and it is molded on the needle stand of the described pin main body and limit convex being embedded in described locating slot that slides
Rise;The distance that the tail end of wherein said stopper slot is extended back with the tail end of described chute relatively is equal or slightly larger than described slip
The axial length in portion.
Described pin main body passes through one end of described protective case to be additionally provided with needle stand auxiliary member.
The external force auxiliary member being easy to apply external force is additionally provided with the outer wall of described protective case.
Described chute is set to the groove being molded on described protective case, the length direction of described groove and described protective case
Length direction is consistent, and described sliding part is the lug boss on the needle stand of described pin main body, and described lug boss slides and is embedded in
In described groove, and form at least one on the tail end madial wall of described groove in runcinate described elastic barrier portion.
The pawl elastic barrier on tail end madial wall that described elastic barrier portion is set to be molded over described groove.
Two pawl elastic barrier on tail end madial wall that described elastic barrier portion is set to be molded over described groove.
Draw-in groove for engaging described lug boss is also formed on the first end-side wall of described groove.
Described protective case is set in butterfly-like protective case.
The tail end of described pin main body is additionally provided with least one elastic spacing portion, and the tail end of described protective case is provided with least one
For the stopper slot matching with described elastic spacing portion.
Safety blood taking syringe, it includes syringe, and safe needle sleeve as above.
The technique scheme of the present invention has advantages below compared to existing technology:In this safe needle sleeve, described pin master
The sliding part of body is embedded in described chute all the time, therefore described pin main body at most slide into described chute head end end or
Tail end end position and direction is only glide direction, its extension elongation is controlled all the time, and described syringe needle will not be because of long stretching out
It is damaged;Meanwhile, when reclaiming it is not necessary to rotate described pin main body or described protective case, only need pin described in direct push-and-pull
Main body or described protective case can make described syringe needle be retracted in the inner chamber of described protective case, and in described sliding part and elasticity resistance
Described protective case is no longer stretched out under the interaction of stopper.
Brief description
In order that present disclosure is more likely to be clearly understood, specific embodiment below according to the present invention simultaneously combines
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the pin main body schematic diagram described in embodiment 1;
Fig. 2 is described safe needle sleeve schematic diagram when pin main body described in embodiment 1 does not bounce back;
Fig. 3 is described safe needle sleeve schematic diagram during the pin main body retraction described in embodiment 1;
Fig. 4 is described safe needle sleeve schematic diagram when pin main body described in embodiment 2 does not bounce back;
Fig. 5 is described safe needle sleeve schematic diagram during the pin main body retraction described in embodiment 2;
Fig. 6 is described safe needle sleeve schematic diagram when pin main body described in embodiment 3 does not bounce back;
Fig. 7 is described safe needle sleeve schematic diagram during the pin main body retraction described in embodiment 3;
Fig. 8 is described safe needle sleeve schematic diagram when pin main body described in embodiment 4 does not bounce back;
Fig. 9 is described safe needle sleeve schematic diagram during the pin main body retraction described in embodiment 4;
In figure reference is expressed as:1- pin main body;2- protective case;3- chute;4- sliding part;5- elastic barrier portion;6-
Needle stand auxiliary member;7- external force auxiliary member;8- draw-in groove;9- spacing preiection;10- elastic spacing portion;11- stopper slot.
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
Embodiment 1
As shown in Figure 1,2 and 3, a kind of safe needle sleeve described in the present embodiment, it includes pin main body 1, by attachment structure
Rotate the protective case 2 being set in pin main body 1, described attachment structure includes at least one chute on described protective case 2
3, in described pin main body 1 and slip is embedded in the sliding part 4 in described chute 3 at least one;Wherein, described chute 3
Tail end is additionally provided with least one elastic barrier portion 5, and during recovery, the syringe needle of described pin main body 1 is towards in the inner chamber of described protective case 2
Retract or described protective case 2 towards described pin main body 1 syringe needle slide, when described sliding part 4 crosses described elastic barrier portion 5,
The inner chamber of the described syringe needle described protective case 2 of retraction;As preferred embodiment, described protective case 2 is set in butterfly-like guarantor
Sheath 2
In this safe needle sleeve, the sliding part 4 of described pin main body 1 is embedded in described chute 3 all the time, therefore described pin master
Body 1 at most slides into the head end end of described chute 3 or tail end end position and direction is only glide direction, its extension elongation
All the time controlled, described syringe needle will not be damaged because of long stretching out;Meanwhile, when reclaiming it is not necessary to rotate described pin master
Body 1 or described protective case 2, only need pin main body 1 or described protective case 2 described in direct push-and-pull that described syringe needle can be made to be retracted into institute
State in the inner chamber of protective case 2, and no longer stretch out described protective case under the interaction with elastic barrier portion 5 for the described sliding part 4
2.
Specifically, described chute 3 is molded on the internal chamber wall of described protective case 2, and described sliding part 4 is set to be molded over described
The first lug boss on the needle stand of pin main body 1, described elastic barrier portion 5 is set to be molded over the tail end of described chute 3 and inwardly dash forward
The second lug boss going out;Wherein, described first lug boss has the first inclined-plane, and described second lug boss has can be with described first
The second inclined-plane that inclined-plane agrees with;Because there is inclined-plane between described first lug boss and described second lug boss to agree with, one
First projection described in denier crosses described second projection, and the side in described second projection is offseted by the side of described first projection,
Make described first projection cannot return again to cross described second projection, so that it is guaranteed that the described syringe needle after retraction will not be stretched again
Go out described protective case 2.
Further, the present embodiment also includes the position limiting structure that described pin main body 1 is positioned, and described position limiting structure includes
It is molded over the stopper slot on described protective case 2 inwall, and be molded on the needle stand of described pin main body 1 and slide and be embedded in institute
State the spacing preiection 9 in locating slot;The distance that the tail end of wherein said stopper slot is extended back with the tail end of described chute 3 relatively
It is equal or slightly larger than the axial length of described sliding part 4;Thus preventing described pin main body 1 from play occurring.
Wherein, operator makes power for convenience, and it is auxiliary that described pin main body 1 passes through one end of described protective case 2 to be additionally provided with needle stand
Assistant piece 6, and specifically, it is preferable to described needle stand auxiliary member 6 is set to be set in the auxiliary circle ring support of described pin main body 1 tail end;Meanwhile, institute
The external force auxiliary member 7 being easy to apply external force is additionally provided with the outer wall stating protective case 2, preferably described external force auxiliary member 7 is set to be molded
Projection on described protective case 2 outer wall
Embodiment 2
As shown in Figures 4 and 5, a kind of safe needle sleeve described in the present embodiment, it is included pin main body 1, is turned by attachment structure
The dynamic protective case 2 being set in pin main body 1, described attachment structure includes at least one chute 3 on described protective case 2,
In described pin main body 1 and slip is embedded in the sliding part 4 in described chute 3 at least one;Wherein, the tail of described chute 3
End is additionally provided with least one elastic barrier portion 5, and during recovery, the syringe needle of described pin main body 1 contracts towards in the inner chamber of described protective case 2
Return or described protective case 2 towards described pin main body 1 syringe needle slide, when described sliding part 4 crosses described elastic barrier portion 5, institute
State the inner chamber of the syringe needle described protective case 2 of retraction;As preferred embodiment, described protective case 2 is set in butterfly-like protection
Set 2.
In this safe needle sleeve, the sliding part 4 of described pin main body 1 is embedded in described chute 3 all the time, therefore described pin master
Body 1 at most slides into the head end end of described chute 3 or tail end end position and direction is only glide direction, its extension elongation
All the time controlled, described syringe needle will not be damaged because of long stretching out;Meanwhile, when reclaiming it is not necessary to rotate described pin master
Body 1 or described protective case 2, only need pin main body 1 or described protective case 2 described in direct push-and-pull that described syringe needle can be made to be retracted into institute
State in the inner chamber of protective case 2, and no longer stretch out described protective case under the interaction with elastic barrier portion 5 for the described sliding part 4
2.
Described chute 3 is set to the groove being molded on described protective case 2, the length direction of described groove and described protective case
2 length direction is consistent, and described sliding part 4 is the lug boss on the needle stand of described pin main body 1, and described lug boss slides embedding
Enter in described groove, and form at least one on the tail end madial wall of described groove in runcinate described elastic barrier portion
5.
In the present embodiment, as preferred embodiment, described elastic barrier portion 5 is set to be molded over the tail of described groove
A pawl elastic barrier on the madial wall of end.
Draw-in groove 8 for engaging described lug boss is also formed on the first end-side wall of described groove.
Embodiment 3
As shown in Figures 6 and 7, as disposable embodiment, the present embodiment is with the difference of embodiment 2:Institute
State two pawl elastic barrier on the tail end madial wall that elastic barrier portion 5 is set to be molded over described groove.
Embodiment 4
As shown in FIG. 8 and 9, on the basis of embodiment 1,2 and 3, the tail end of the described pin main body 1 of the present embodiment is additionally provided with
At least one elastic spacing portion 10, the tail end of described protective case 2 is provided with least one for matching with described elastic spacing portion 10
The stopper slot 11 closing.
In the present embodiment, described elastic spacing portion 10 and described stopper slot 11 are all set to two, during original state, described
Elastic spacing portion 10 is stuck in described stopper slot 11, as shown in figure 8, when using, pressing described elastic spacing portion 10 first makes it
Deviate from from described stopper slot 11, then syringe needle described in recycling, as shown in Figure 9.
Embodiment 5
On the basis of embodiment 1,2,3 and 4, the present embodiment provides a kind of safety blood taking syringe, and it includes syringe, and
Safe needle sleeve;Wherein, described safe needle sleeve is set to the safety described in embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4
Needle guard.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.Right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Change among still in the protection domain of the invention.
Claims (10)
1. a kind of safe needle sleeve, it includes pin main body (1), rotates, by attachment structure, the protective case being set in pin main body (1)
(2) it is characterised in that:Described attachment structure includes at least one chute (3) on described protective case (2), at least one
Located at described pin main body (1), above and slip is embedded in the sliding part (4) in described chute (3);Wherein, the tail of described chute (3)
End is additionally provided with least one elastic barrier portion (5), and during recovery, the syringe needle of described pin main body (1) is interior towards described protective case (2)
In chamber retract or described protective case (2) towards described pin main body (1) syringe needle slide, when described sliding part (4) crosses described bullet
Property stop part (5), described syringe needle retracts the inner chamber of described protective case (2).
2. a kind of safe needle sleeve according to claim 1 it is characterised in that:Described chute (3) is molded over described protective case
(2), on internal chamber wall, described sliding part (4) is set to the first lug boss being molded on the needle stand of described pin main body (1), described bullet
Property stop part (5) is set to be molded over the tail end of described chute (3) and the second inwardly projecting lug boss;Wherein, described first is convex
The portion of rising has the first inclined-plane, and described second lug boss has the second inclined-plane that can agree with described first inclined-plane.
3. a kind of safe needle sleeve according to claim 2 it is characterised in that:Also include described pin main body (1) being carried out determine
The position limiting structure of position, described position limiting structure includes the stopper slot being molded on described protective case (2) inwall, and is molded over described
On the needle stand of pin main body (1) and slide and be embedded in spacing preiection (9) in described locating slot;The tail end of wherein said stopper slot
The distance relatively extending back with the tail end of described chute (3) is equal or slightly larger than the axial length of described sliding part (4).
4. a kind of safe needle sleeve according to claim 2 it is characterised in that:Described pin main body (1) passes through described protective case
(2) one end is additionally provided with needle stand auxiliary member (6).
5. a kind of safe needle sleeve according to claim 2 it is characterised in that:It is additionally provided with the outer wall of described protective case (2)
It is easy to apply the external force auxiliary member (7) of external force.
6. a kind of safe needle sleeve according to claim 1 it is characterised in that:Described chute (3) is set to be molded over described guarantor
Groove on sheath (2), the length direction of described groove is consistent with the length direction of described protective case (2), described sliding part (4)
It is the lug boss on the needle stand of described pin main body (1), described lug boss slides and is embedded in described groove, and described groove
Tail end madial wall on form at least one be in runcinate described elastic barrier portion (5).
7. a kind of safe needle sleeve according to claim 6 it is characterised in that:Described elastic barrier portion (5) is set to be molded over
A pawl elastic barrier on the tail end madial wall of described groove or two pawl elastic barrier.
8. a kind of safe needle sleeve according to claim 6 it is characterised in that:Also form on the first end-side wall of described groove
For engaging the draw-in groove (8) of described lug boss.
9. a kind of safe needle sleeve according to claim 1 it is characterised in that:The tail end of described pin main body (1) be additionally provided with to
A few elastic spacing portion (10), the tail end of described protective case (2) is provided with least one and is used for and described elastic spacing portion (10)
The stopper slot (11) matching.
10. safety blood taking syringe it is characterised in that:It includes syringe, and safety as claimed in any one of claims 1-9 wherein
Needle guard.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610805486.5A CN106421982B (en) | 2016-09-05 | 2016-09-05 | Safety needle cover and safety blood sampling needle cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610805486.5A CN106421982B (en) | 2016-09-05 | 2016-09-05 | Safety needle cover and safety blood sampling needle cylinder |
Publications (2)
Publication Number | Publication Date |
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CN106421982A true CN106421982A (en) | 2017-02-22 |
CN106421982B CN106421982B (en) | 2022-11-18 |
Family
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CN201610805486.5A Active CN106421982B (en) | 2016-09-05 | 2016-09-05 | Safety needle cover and safety blood sampling needle cylinder |
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CN (1) | CN106421982B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107638183A (en) * | 2017-10-30 | 2018-01-30 | 广东龙心医疗器械有限公司 | Fluid delivery system with retractable needles |
CN107638182A (en) * | 2017-09-05 | 2018-01-30 | 汪贤宗 | Fluid delivery system with retractable needles |
CN111374680A (en) * | 2020-03-31 | 2020-07-07 | 江苏苏云医疗器材有限公司 | Blood taking needle head protection device |
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US6162197A (en) * | 1998-12-22 | 2000-12-19 | Mohammad; Owais | Retractable needle assembly and method of making the same |
US20090216154A1 (en) * | 2008-02-21 | 2009-08-27 | Bencha International Group. Inc | Automatically retractable safety blood sampler |
WO2014047891A1 (en) * | 2012-09-28 | 2014-04-03 | Zhang Jianming | Soft tube detaining scalp needle with combined and connected tube-needle |
CN104707208A (en) * | 2015-01-29 | 2015-06-17 | 福建省百仕韦医用高分子股份有限公司 | Remaining needle with unilateral-seam protective sleeve |
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2016
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US6162197A (en) * | 1998-12-22 | 2000-12-19 | Mohammad; Owais | Retractable needle assembly and method of making the same |
US20090216154A1 (en) * | 2008-02-21 | 2009-08-27 | Bencha International Group. Inc | Automatically retractable safety blood sampler |
WO2014047891A1 (en) * | 2012-09-28 | 2014-04-03 | Zhang Jianming | Soft tube detaining scalp needle with combined and connected tube-needle |
CN103857428A (en) * | 2012-09-28 | 2014-06-11 | 张建铭 | Hose and needle combined hose-remained scalp needle |
CN104707208A (en) * | 2015-01-29 | 2015-06-17 | 福建省百仕韦医用高分子股份有限公司 | Remaining needle with unilateral-seam protective sleeve |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107638182A (en) * | 2017-09-05 | 2018-01-30 | 汪贤宗 | Fluid delivery system with retractable needles |
CN107638183A (en) * | 2017-10-30 | 2018-01-30 | 广东龙心医疗器械有限公司 | Fluid delivery system with retractable needles |
CN107638183B (en) * | 2017-10-30 | 2023-12-26 | 广东龙心医疗器械有限公司 | Fluid delivery device with retractable needle |
CN111374680A (en) * | 2020-03-31 | 2020-07-07 | 江苏苏云医疗器材有限公司 | Blood taking needle head protection device |
CN111374680B (en) * | 2020-03-31 | 2020-10-02 | 江苏苏云医疗器材有限公司 | Blood taking needle head protection device |
Also Published As
Publication number | Publication date |
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CN106421982B (en) | 2022-11-18 |
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