CN104096288B - A kind of Anti-stabbing puncture needle - Google Patents
A kind of Anti-stabbing puncture needle Download PDFInfo
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- CN104096288B CN104096288B CN201410347575.0A CN201410347575A CN104096288B CN 104096288 B CN104096288 B CN 104096288B CN 201410347575 A CN201410347575 A CN 201410347575A CN 104096288 B CN104096288 B CN 104096288B
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- needle
- needle body
- locking piece
- protective cover
- puncture needle
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Abstract
The invention discloses a kind of Anti-stabbing puncture needle, including: needle stand；Needle body, needle body is fixed on needle stand, and has bayonet socket on the wall of needle body；Protective cover, protective cover is enclosed within outside needle body, and the length of protective cover is less than the length of needle body, and protective cover coordinates with needle stand before entering anti-stab state, departs from needle stand when entering anti-stab state；Locking piece; locking piece is positioned at protective cover; and on the axis direction of needle body; locking piece is relatively fixed with protective cover; locking piece has the perforation allowing needle body to pass; locking piece also has the projection towards needle body, and the bayonet fittings at anti-stab state lower process with needle body makes locking piece be fixed together with needle body, and projection and the protective cover distance near needle point one end of needle body are more than the distance between bayonet socket and the needle point of needle body.Present invention solves the technical problem that and be to overcome the shortcoming using the complete easy scathing of puncture needle, it is provided that a kind of Anti-stabbing puncture needle preventing from using complete puncture needle scathing.
Description
Technical field
The present invention relates to medical transfusion device.It is specially a kind of Anti-stabbing puncture needle for remaining needle.
Background technology
At present, human transfusion, as the important and effective medical procedure of one for the treatment of disease, is widely used.Human body
Pain can be brought to patient when the pin that metal is made is penetrated during transfusion the blood vessel of human body.If disease needs repeatedly to infuse, then need
Repeatedly to puncture.Remaining needle can solve problem above, and remaining needle generally comprises piercing assembly and infusion set, after completing to puncture,
Piercing assembly departs from human body.A part for the soft transfusion needle of infusion set is retained in human vas, carries out defeated in next time
During liquid, transfusion needle can be connected and tube for transfusion is infused, be not required to puncture again.
Puncture needle is disposable medical article, and in order to prevent disease from passing through blood born, puncture needle i.e. goes out of use after using
And process.But puncture needle is after human body departs from, although the protective cover of plastics can be brought to prevent from stabbing medical worker and medical treatment rubbish
Rubbish treatment people, but protective cover is simply enclosed within puncture needle simply, it is easy to come off, still can not stop medical worker and rubbish
Rubbish treatment people is stung and is caused the infection of disease.
Summary of the invention
Present invention solves the technical problem that and be to overcome the shortcoming using the complete easy scathing of puncture needle, it is provided that one can prevent
Use the Anti-stabbing puncture needle of complete puncture needle scathing.
The Anti-stabbing puncture needle of the present invention, including:
Needle stand；
Needle body, described needle body is fixed on described needle stand, and has bayonet socket on the wall of described needle body；
Protective cover, described protective cover is enclosed within outside described needle body, and the length of described protective cover is less than the length of described needle body, and institute
State protective cover to coordinate with described needle stand before entering anti-stab state, depart from described needle stand when entering anti-stab state；
Locking piece, the motion on the axis direction of needle body of the described locking piece is limited by described protective cover.Described locking piece has
Having the perforation allowing described needle body to pass, described locking piece also has the projection towards described needle body, described prominent under anti-stab state
Rise and with the bayonet fittings of described needle body, locking piece be fixed together with needle body, and described projection with described protective cover near described
The distance of needle point one end of needle body is more than the distance between bayonet socket and the needle point of described needle body.
As preferably, described protective cover has latch well, and described locking piece is for being positioned at described latch well and being perpendicular to described needle body
Elastomer sheets.
As preferably, described locking piece has the pawl that prominent towards described needle body and with described needle body wall offsets, described pawl and institute
State projection described needle body carries out clamping together to make described needle body and the described locking piece can synchronous rotary.
As preferably, described protective cover has and communicates and allow described locking piece to insert institute outside described protective cover with described latch well
Stating the opening in protective cover, described locking piece has two elastic arms, surrounds described perforation, and two between two described elastic arms
The space allowing described needle body to enter described perforation is left between individual described elastic arm.
As preferably, one end of two described elastic arms links together, and the other end of two described elastic arms is located remotely from each other,
The width at the middle part of two described elastic arms is more than the width at its two ends, and the middle part of two described elastic arms is close to each other, the two
Between space surround described perforation, described projection and pawl are separately positioned on two described elastic arms and surround the part of described perforation.
As preferably, the both sides of described projection are provided with depression, two described depressions under anti-stab state respectively with the card of described needle body
The two side of mouth coordinates.
As preferably, two elastic arms of described locking piece are formed in one.
As preferably, described locking piece and its space away from one end also there is Handheld Division, described Handheld Division is inserted at described elastic arm
Enter after in the latch well of described protective cover and can depart from described elastic arm.
As preferably, described locking piece is the elastic component of the annular being fixed in described protective cover, and described locking piece has multiple
The elastic arm extended to the center of annular from the inwall of annular, the end of multiple described elastic arms surrounds described perforation, one of them
The end of elastic arm is provided with described projection.
As preferably, described needle body is hollow, and the bayonet socket of described needle body communicates composition side opening with the hollow space of described needle body.
As preferably, the power that described protective cover coordinates with described needle stand before entering anti-stab state is 4.9-5.88N.
As preferably, the perforation of described locking piece is 2.94-3.43N to the chucking power of described needle body.
As preferably, the bayonet socket of described needle body is 14.7-19.6N with the combining ability of described locking piece.
Compared to the prior art the Anti-stabbing puncture needle of the present invention, has the advantages that
1, after operator utilize the Anti-stabbing puncture needle of the present invention to complete to puncture, protective cover is made to depart from needle stand, when in protective cover
Locking piece when moving to the bayonet socket of needle body, the projection of locking piece slips in the bayonet socket of needle body, and puncture needle i.e. enters anti-stab state.
Under anti-stab state, protective cover is locked part locking with the relative position of needle body, and protective cover both will not move to the direction of needle point,
Also will not move to the direction of needle stand, now needle point is positioned at protective cover, will not stab operator.The Anti-stabbing of the present invention is worn
Pricker simple in construction, simple operation, and the purpose of Anti-stabbing can be reliably achieved.
2, the protective cover of the Anti-stabbing puncture needle of the present invention has latch well, and locking piece is to be positioned at latch well and be perpendicular to needle body
Elastomer sheets, utilizes the elastic deformation of locking piece to realize the clamping to puncture needle.
3, protective cover has the opening communicating with latch well and allowing locking piece self-insurance guard shield extrapolation to enter in protective cover, and locking piece has
Two elastic arms, form perforation, and leave the space allowing needle body to enter perforation between two elastic arms between two elastic arms.
This structure makes the assembling of puncture needle simple and reliable.
4, locking piece and its space away from one end also there is Handheld Division, when inserting locking piece, operator pinches Handheld Division and is easy to
Exert a force to locking piece.Handheld Division can depart from elastic arm after elastic arm inserts in the latch well of protective cover so that locking piece and pin
Assembling between body and protective cover is easy, and the making also making whole Anti-stabbing puncture needle is simple and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the remaining needle of the Anti-stabbing puncture needle with the present invention.
Fig. 2 is the structural representation of the Anti-stabbing puncture needle of invention first embodiment.
Fig. 3 is the structure for amplifying schematic diagram of the locking piece of the Anti-stabbing puncture needle of first embodiment of the invention.
Fig. 4 is the Anti-stabbing puncture needle of first embodiment of the invention sectional view before entering anti-stab state.
Fig. 5 is the sectional view of the Anti-stabbing puncture needle of first embodiment of the invention line A-A along Fig. 4.
Fig. 6 is the Anti-stabbing puncture needle of first embodiment of the invention sectional view under anti-stab state.
Fig. 7 is the sectional view of the Anti-stabbing puncture needle of first embodiment of the invention line B-B along Fig. 6.
Reference
1-puncture needle, 11-needle stand, 12-needle body, 121-needle point, 122-bayonet socket, 13-protective cover, 131-latch well, 132-
Opening, 133-bullport, 134-tubular cavity, 14-locking piece, 141-bores a hole, 142-projection, 143-pawl, 144-
Elastic arm, 145-space, 146-caves in, 147-Handheld Division；
2-indwelling assembly, the soft pin of 21-, 22-tube for transfusion.
Detailed description of the invention
Fig. 1 is the structural representation of the remaining needle of the Anti-stabbing puncture needle with the present invention, and Fig. 2 is the anti-of invention first embodiment
Stab the structural representation of puncture needle.Fig. 2-Fig. 7 all eliminates the needle stand 11 of Anti-stabbing puncture needle.As it is shown in figure 1, remaining needle
Include puncture needle 1 and indwelling assembly 2.As depicted in figs. 1 and 2, the Anti-stabbing puncture needle of the present invention includes: needle stand 11,
Needle body 12, protective cover 13 and locking piece 14.Needle body 12 is usually hollow, and needle point 121 part has and hollow bulb split-phase
Logical hole.One end of described needle body 12 is fixed on described needle stand 11, in the present invention, the wall of described needle body 12 has card
Mouth 122, bayonet socket 122 can be a depression, it is also possible to communicate composition side opening with the hollow space of described needle body 12.Indwelling group
Part stays endovascular soft pin 21 and the tube for transfusion 22 being connected with soft pin and communicating after having included puncturing, and the softest pin is hollow
, it is enclosed within the outside of described needle body.When puncturing, puncture needle penetrates the Ink vessel transfusing of human body with soft pin, after completing to puncture,
Extracting puncture needle, Ink vessel transfusing stayed by soft pin.
As in figure 2 it is shown, described protective cover 13 is enclosed within described needle body 12 outside, the length of described protective cover 13 is less than described needle body
The length of 12, and described protective cover 13 coordinates with described needle stand 11 entering before anti-stab state, in the present embodiment, protective cover
13 one end coordinated with needle stand 11, have tubular cavity 134, and when protective cover is enclosed within needle stand, the inner wall sleeve of tubular cavity exists
On needle stand.Before entering anti-stab state, the power that described protective cover 13 coordinates with described needle stand 11 is 4.9-5.88N, can prevent
Before puncturing, protective cover 13 departs from the anti-stab state of entrance from needle stand 11 easily.Depart from described needle stand 11 when entering anti-stab state,
As shown in Figure 4.In the present embodiment, protective cover has bullport 133, and needle body passes described bullport 133.Bullport 133
It is bell mouth shape near one end of needle stand, in order to when assembling protective cover 13 and needle body 12, make the needle point 121 of needle body 12 be prone to
Penetrate bullport 133.Bullport 133 has certain length, the such as length of bullport 133 not less than protective cover length
1/2.This makes protective cover more stable when moving along needle body, will not shake, and makes under anti-stab state, locking piece
With needle body coordinate more stable reliably.
Locking piece 14 is positioned at described protective cover 13, and the motion that described locking piece 14 is on the axis direction of needle body 12, is subject to
Restriction to described protective cover 13.Restriction herein refers to that locking piece 14 will not be relative to protection on the axial direction of needle body 12
Cover 13 does and significantly moves, and movement by a small margin is then to allow.
Described locking piece 14 has the perforation 141 allowing described needle body 12 to pass, as it is shown on figure 3, described locking piece 14 also has
Having the projection 142 towards described needle body 12, before entering anti-stab state, projection 142 offsets with needle body 12, as it is shown in figure 5,
Now, there is elastic deformation in projection 142.Under anti-stab state, described projection 142 coordinates with the bayonet socket 122 of described needle body 12 and makes
Obtain locking piece 14 to be fixed together with needle body 12, as shown in Figure 7.And described projection 142 with described protective cover 13 near described
The distance of needle point 121 one end of needle body 12 is more than the distance between bayonet socket 122 and the needle point 121 of described needle body 12, such as Fig. 6
Shown in.
After medical worker completes to puncture, pulling up puncture needle, puncture needle departs from human body, and a part for soft pin 21 is retained in Ink vessel transfusing.
Make protective cover 13 depart from needle stand 11, and make protective cover 13 move to the direction of needle point 121 along needle body 12, when protective cover 13
When interior locking piece 14 moves to the bayonet socket 122 of needle body 12, the projection 142 of locking piece 14 slips into the bayonet socket 122 of needle body 12
In, puncture needle i.e. enters anti-stab state, as shown in Figure 6 and Figure 7.Under anti-stab state, the phase of protective cover 13 and needle body 12
Position being locked part 14 lock, protective cover 13 both will not move to the direction of needle point 121, also will not be to the direction of needle stand 11
Mobile, now needle point 121 is positioned at protective cover 13, will not stab operator.The Anti-stabbing puncture needle structure of the present invention is simple,
Simple operation, and the purpose of Anti-stabbing can be reliably achieved.The bayonet socket 122 of described needle body 12 and described locking piece 14
Combining ability is preferably 14.7-19.6N.If the most specially applied bigger external force, protective cover will not depart from needle body.
As preferably, as in figure 2 it is shown, described protective cover 13 has latch well 131, in the present embodiment, latch well 131
Between tubular cavity 134 and bullport 133, described locking piece 14 is for being positioned at described latch well 131 and being perpendicular to described pin
The elastomer sheets of body 12.The length of latch well 131, i.e. along the size in direction of described needle body 12 length, limits locking
Part 14 can in latch well the scope of movement.The length of latch well 131 is preferably greater than the thickness of locking piece 14, i.e. locking piece
14 along the size of needle body 12 length direction, less than 2 times of locking piece 14 thickness, for example, it is possible to it is thick to be set to locking piece 14
1.1,1.2 or 1.5 equimultiples of degree.Certainly, in other examples.Locking piece 14 also can be directly fixed on protection
On the inwall of cover 13 or one-body molded with protective cover 13.In the present embodiment, the length of protective cover, i.e. along needle body length
The size in direction is about the 1/3 of needle body length.Described locking piece 14 preferably have prominent towards described needle body 12 and with described pin
The pawl 143 that the wall of body 12 offsets, pawl 143 carries out clamping to described needle body 12 together with described projection 142 makes described needle body 12
Can synchronous rotary with described locking piece 14.
So, locking piece 14, when moving relative to needle body 12, will not rotate so that locking piece 14 relative to needle body 12
The bayonet socket 122 of projection 142 and needle body 12 stagger and can not slip in bayonet socket 122, cause lock operation failure, locking behaviour
In the case of making unsuccessfully, need protective cover 13 is retracted original position, re-start the operation of locking.Wearing of described locking piece 14
Hole 141 is preferably 2.94-3.43N to the chucking power of described needle body 12.
In the first embodiment of the present invention, as shown in Figures 2 and 3, described protective cover 13 has and communicates with described latch well 131
And allow described locking piece 14 from the described outer opening 132 inserted in described protective cover 13 of protective cover 13.Described locking piece 14
There are two elastic arms 144, between two described elastic arms 144, surround described perforation 141, and two described elastic arms 144 it
Between leave and allow described needle body 12 to enter the space 145 of described perforation 141.This structure makes the assembling of puncture needle simple and can
Lean on.Specifically, first by needle body 12 through protective cover 13, and protective cover 13 is enclosed within needle stand 11, by locking piece 14 self-insurance
The opening 132 of guard shield 13 inserts in protective cover 13, during insertion, makes space 145 be directed at needle body 12, when locking piece 14 is inserted
When entering to put in place, needle body 12 enters perforation 141 by space 145.Space 145 is preferably less than the diameter of needle body 12, due to
Elastic arm 144 can occur elastic deformation, and needle body 12 can clamp-on perforation 141 by space 145, and needle body 12 enters perforation 141
After, will not by space 145 out under the effect not having external force.
In the present embodiment, one end of two described elastic arms 144 links together, other the one of two described elastic arms 144
End is located remotely from each other, and the width at the middle part of two described elastic arms 144 is more than the width at its two ends, and two described elastic arms 144
Middle part close to each other, space therebetween surrounds described perforation 141, and described projection 142 and pawl 143 are separately positioned on two
Individual described elastic arm 144 surrounds the part of described perforation 141.Two elastic arms 144 preferably one of described locking piece 14 becomes
Type.
As preferably, the both sides of described projection 142 are provided with depression 146, two described depressions 146 under anti-stab state respectively with
The two side of the bayonet socket 122 of described needle body 12 coordinates, and projection 142 can be made more stable with coordinating of needle body 12 bayonet socket 122.
As preferably, described locking piece 14 and its space 145 away from one end also there is Handheld Division 147, inserting locking piece 14
Time, operator pinches Handheld Division 147 and is easy to exert a force to locking piece 14.Institute is inserted at described elastic arm 144 in described Handheld Division 147
State after in the latch well 131 of protective cover 13 and can depart from described elastic arm 144.In the present embodiment, Handheld Division 147 is with elastic
Arm 144 is one, Handheld Division 147 and the size of elastic arm 144 junction, as the most hand-held in thickness and/or width
Portion 147 and elastic arm 144.After inserting elastic arm 144, bending elastic arm 144 and the link position of Handheld Division 147, such as Fig. 2
Shown in, the arrow in figure is the direction of bending, makes fixture disconnect in this place, and Handheld Division 147 departs from elastic arm 144.Certainly
Handheld Division 147 and elastic arm 144 may be used without other forms, as passed through Elastic buckle between Handheld Division 147 and elastic arm 144
Form connect, insert after elastic arm 144, release Elastic buckle and connect, make Handheld Division 147 depart from elastic arm 144.
In the second embodiment of the present invention, the elastic component of the described locking piece 14 annular for being fixed in described protective cover 13,
And described locking piece 14 has the elastic arm 144 that multiple inwall from annular extends, multiple described elastic arms 144 to the center of annular
End surround described perforation 141, the end of one of them elastic arm 144 is provided with described projection 142.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, and protection scope of the present invention is by right
Claim limits.Those skilled in the art in the essence and protection domain of the present invention, various amendments that the present invention is made or etc.
Also it is within the scope of the present invention with replacement.
Claims (12)
1. an Anti-stabbing puncture needle, it is characterised in that including:
Needle stand；
Needle body, described needle body is fixed on described needle stand, and has bayonet socket on the wall of described needle body；
Protective cover, described protective cover is enclosed within outside described needle body, and the length of described protective cover is less than the length of described needle body,
And described protective cover coordinates with described needle stand before entering anti-stab state, take off with described needle stand when entering anti-stab state
From, described protective cover has latch well；
Locking piece, described locking piece is to be positioned at described latch well and be perpendicular to the elastomer sheets of described needle body, described
Locking piece motion on the axis direction of needle body is limited by described protective cover, and it is described that described locking piece has permission
The perforation that needle body passes, described locking piece also has the projection towards described needle body, under anti-stab state described projection with
The bayonet fittings of described needle body makes locking piece be fixed together with needle body, and described projection and described protective cover are near institute
State the distance of needle point one end of needle body more than the distance between bayonet socket and the needle point of described needle body.
Anti-stabbing puncture needle the most according to claim 1, it is characterised in that described locking piece has towards institute
Stating the pawl that prominent and with described needle body the wall of needle body offsets, described needle body is clamped together with described projection by described pawl
Make described needle body and the described locking piece can synchronous rotary.
Anti-stabbing puncture needle the most according to claim 2, it is characterised in that described protective cover has with described
Latch well communicates and allows described locking piece to insert the opening in described protective cover, described locking piece outside described protective cover
There are two elastic arms, surround between two described elastic arms leave between described perforation, and two described elastic arms fair
Permitted described needle body and entered the space of described perforation.
Anti-stabbing puncture needle the most according to claim 3, it is characterised in that one end of two described elastic arms
Linking together, the other end of two described elastic arms is located remotely from each other, and the width at the middle part of two described elastic arms is big
In the width at its two ends, and the middle part of two described elastic arms is close to each other, and space therebetween surrounds described perforation,
Described projection and pawl are separately positioned on two described elastic arms and surround the part of described perforation.
Anti-stabbing puncture needle the most according to claim 3, it is characterised in that the both sides of described projection are provided with recessed
Fall into, two described depressions under anti-stab state respectively two side with the bayonet socket of described needle body coordinate.
6. according to the Anti-stabbing puncture needle according to any one of claim 3-5, it is characterised in that described locking piece
Two elastic arms be formed in one.
7. according to the Anti-stabbing puncture needle according to any one of claim 3-5, it is characterised in that described locking piece
With its space away from one end also there is Handheld Division, described Handheld Division described elastic arm insert described protective cover locking
Can depart from described elastic arm after intracavity.
Anti-stabbing puncture needle the most according to claim 2, it is characterised in that described locking piece is for being fixed on
State the annular elastic component in protective cover, and described locking piece has multiple elasticity extended to center from the inwall of annular
Arm, the end of multiple described elastic arms surrounds described perforation, and the end of one of them elastic arm is provided with described projection.
9. according to the Anti-stabbing puncture needle any one of claim 1-5 or described in claim 8, it is characterised in that
Described needle body is hollow, and the bayonet socket of described needle body communicates composition side opening with the hollow space of described needle body.
10. according to the Anti-stabbing puncture needle any one of claim 1-5 or described in claim 8, it is characterised in that
The power that described protective cover coordinates with described needle stand before entering anti-stab state is 4.9-5.88N.
11. according to the Anti-stabbing puncture needle any one of claim 1-5 or described in claim 8, it is characterised in that
The perforation of described locking piece is 2.94-3.43N to the chucking power of described needle body.
12. according to the Anti-stabbing puncture needle any one of claim 1-5 or described in claim 8, it is characterised in that
The bayonet socket of described needle body is 14.7-19.6N with the combining ability of described locking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347575.0A CN104096288B (en) | 2014-07-21 | 2014-07-21 | A kind of Anti-stabbing puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347575.0A CN104096288B (en) | 2014-07-21 | 2014-07-21 | A kind of Anti-stabbing puncture needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104096288A CN104096288A (en) | 2014-10-15 |
| CN104096288B true CN104096288B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410347575.0A Active CN104096288B (en) | 2014-07-21 | 2014-07-21 | A kind of Anti-stabbing puncture needle |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641529B (en) * | 2012-05-08 | 2014-04-16 | 江苏苏云医疗器材有限公司 | Indwelling needle |
| CN102641528A (en) * | 2012-05-08 | 2012-08-22 | 江苏苏云医疗器材有限公司 | Safety remaining needle |
| CN103405833B (en) * | 2013-08-15 | 2015-06-17 | 王幸明 | Puncture-preventing entry needle |
| CN103736170A (en) * | 2013-10-12 | 2014-04-23 | 苏州市雅思精密模具有限公司 | Anti-puncture remaining needle |
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2014
- 2014-07-21 CN CN201410347575.0A patent/CN104096288B/en active Active
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| CN104096288A (en) | 2014-10-15 |
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