CN103357090A - Infusion needle safety device - Google Patents
Infusion needle safety device Download PDFInfo
- Publication number
- CN103357090A CN103357090A CN2012100844646A CN201210084464A CN103357090A CN 103357090 A CN103357090 A CN 103357090A CN 2012100844646 A CN2012100844646 A CN 2012100844646A CN 201210084464 A CN201210084464 A CN 201210084464A CN 103357090 A CN103357090 A CN 103357090A
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- needle
- conjunction
- safety device
- state
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Abstract
An infusion needle safety device is used for covering a needle of a syringe and comprises a telescopic sleeve unit, a first jointing part and a second jointing part. The needle comprises a needle holder and a needle body. The sleeve unit comprises a connecting end and a deformable end, and the deformable end can deform to open and close under external force and is provided with two opposite portions. The first jointing part and the second jointing part are respectively arranged on the two opposite portions of the deformable end, and can be matched with each other separately to keep the deformable end closing or enable the deformable end to form an opening. The needle body can be sleeved in the sleeve unit when the sleeve unit extends, and can penetrate the opening of the deformable end when the sleeve unit retracts. Therefore, the infusion needle safety device is free of detachment and capable of reducing pricking risk.
Description
Technical field
The present invention relates to a kind of safety device, particularly relate to a kind of safety device of injection needle.
Background technology
Consult Fig. 1, existing syringe cylinder 1 comprises a syringe section 11, a syringe needle 12 and a needle sleeve 13.This syringe needle 12 includes a needle stand 121 that is connected with this syringe section 11, and a needle body 122 that is extended and can infuse for injection along a length direction by this needle stand 121.This needle sleeve 13 is the plastic long tube body of end sealing.
When existing syringe cylinder 1 did not use, this needle sleeve 13 was to be socketed in tightly on this needle stand 121, and enveloped simultaneously this needle body 122 it is not exposed, and can be used to avoid the pollution that the dangerous of pinprick occurs and avoid causing this needle body 122.When injection is used, one user must be pulled out this needle sleeve 13 first from this needle stand 121, this needle sleeve 13 is separated fully with this syringe needle 12, if accidentally lose this needle sleeve 13 this moment, cover this syringe needle 12 and can't after use, at once overlap, then will increase the danger of Accidental occurrence pinprick.
After finishing injection, this user must move to overlap and covers this needle body 122 to hold on the other hand the direction of this needle sleeve 13 along this length direction toward this syringe section 11, this moment is because the direction that movable sleeving covers namely faces the point of this needle body 122, therefore usually easily accidentally meet accident in the process that movable sleeving covers because operate absent-mindedly, and cause pinprick.
Summary of the invention
The object of the present invention is to provide a kind of safety device of exempting to dismantle, when cover covers, can reduce the injection needle that dangerous, the scalable and ease of Use of pinprick occurs.
The safety device of injection needle of the present invention, be used for the syringe needle that cover covers a syringe, this syringe needle includes a needle stand and by the needle body of this needle stand along length direction extension, and the safety device of this injection needle includes a cartridge unit, one first conjunction and one second conjunction.
This cartridge unit can be flexible along this length direction, comprises the connection end of contiguous this needle stand, and one away from this needle stand and can be subjected to external force deformation and the cited deformable ends that opens and closes.This cited deformable ends has two relative positions, and can be out of shape between one first state and one second state.
Under this first state, this two relative position is close to each other and seal this cited deformable ends, and under this second state, this two relative position makes this cited deformable ends define an opening away from each other.
This first conjunction and this second conjunction are arranged at respectively two relative positions of this cited deformable ends, match separably and make this cited deformable ends maintain this first state.This cartridge unit can switch between a deployed condition and a contraction state, and when this deployed condition, this needle body quilt cover is overlying in this cartridge unit, and when this contraction state, this needle body passes the opening of this cited deformable ends and extends outside this cartridge unit.
Preferably, this cartridge unit comprises that a pedestal cylinder, with this connection end is sheathed on the intermediate cylinder of this pedestal cylinder outer peripheral face slippingly, and one is sheathed on slippingly this intermediate cylinder outer peripheral face and has the termination barrel of this cited deformable ends.
Preferably, this two relative position is formed with respectively one first draw-in groove and one first card article, and then defining respectively this first conjunction and this second conjunction, this first draw-in groove and this first card article be tabling and make this cited deformable ends maintain this first state separably.
More preferably, this first conjunction and this second conjunction fit in respectively this two relative position of this cited deformable ends, this first conjunction is formed with one first draw-in groove, this second conjunction comprises one first card article, and this first draw-in groove and this first card article be tabling and make this cited deformable ends maintain this first state separably.
Preferably, this intermediate cylinder has an end, location away from this needle stand, the outer peripheral face of this end, location be formed with one can for this first draw-in groove the second card article of tabling separably, and one can for this first card article the second draw-in groove of tabling separably.
Preferably, the end face of the end, location of this intermediate cylinder is formed with a location pin hole that can supply this needle body stably to wear.
Preferably, the connection end of this cartridge unit is and this needle stand bolt separably.
Beneficial effect of the present invention is: matching separably by this first conjunction and this second conjunction, the cited deformable ends that makes this cartridge unit is kept sealing or distortion is opened, utilizing this cartridge unit can exempt from the contraction of dismounting ground exposes for use this needle body, cover this needle body with namely can be used for cover after the cartridge unit expansion, therefore when cover covers, can reduce the danger that pinprick occurs.
Description of drawings
Fig. 1 is an axonometric chart, and the safe sleeve pipe of an existing injection needle is described;
Fig. 2 is a three-dimensional exploded view, and a preferred embodiment of the safety device of injection needle of the present invention is described;
Fig. 3 is an axonometric chart, illustrates that a cited deformable ends of this preferred embodiment is in one second state;
Fig. 4 is a profile, illustrates that a cartridge unit of this preferred embodiment is in a deployed condition;
Fig. 5 is a profile, illustrates that this cartridge unit of this preferred embodiment is in a contraction state;
Fig. 6 is an axonometric chart, illustrates that this cited deformable ends of this preferred embodiment is in one first state;
Fig. 7 is a part sectioned view, illustrates that this cited deformable ends of this preferred embodiment is in this first state; And
Fig. 8 is a part sectioned view, and another aspect of one first conjunction and one second conjunction of this preferred embodiment is described.
The specific embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
Consult Fig. 2 and Fig. 3, a preferred embodiment of the safety device of injection needle of the present invention is used for the syringe needle 2 that cover covers a syringe, and this syringe needle 2 includes a needle stand 21 and by the needle body 22 of this needle stand 21 along length direction extension.The safety device of this injection needle includes a cartridge unit 3, one first conjunction 4 and one second conjunction 5.
This cartridge unit 3 is comprised of a plurality of sleeve, and can be flexible along this length direction.The cartridge unit 3 of this preferred embodiment comprises that a pedestal cylinder 31, is sheathed on the intermediate cylinder 32 of these pedestal cylinder 31 outer peripheral faces slippingly, and a termination barrel 33 that is sheathed on slippingly these intermediate cylinder 32 outer peripheral faces.
This pedestal cylinder 31 have contiguous this needle stand 21 and can with this needle stand 21 separably bolt be connected end 311.
What note is, is familiar with this operator and can recognizes that also this connections end 311 can otherwise be connected with this needle stand 21, such as by pressing each other urgent the socket or the modes such as mutual engaging.In addition, this connection end 311 not can be designed as yet and is connected with this needle stand 21, but is designed to directly be connected with a syringe.
This intermediate cylinder 32 has an end, location 321 away from this needle stand 21, and the outer peripheral face of this end, location 321 is formed with one second draw-in groove 324 and one second card article 325 that is the position symmetry along the periphery direction.The end face of the end, location 321 of this intermediate cylinder 32 is formed with a location pin hole 322 that can not be offset for this needle body 22 stably wears in telescopic process.
This termination barrel 33 has one away from this needle stand 21 and can be subjected to external force deformation and the cited deformable ends 331 that opens and closes, and this cited deformable ends 331 has two relative position 331a, 331b.This first conjunction 4 and this second conjunction 5 are arranged at respectively on the inner peripheral surface of two relative position 331a, 331b of this cited deformable ends 331, and match separably and make this cited deformable ends 331 maintain the state of sealing.
In this preferred embodiment, this first conjunction 4 is the structures that are one of the forming with this two relative position 331a, 331b with this second conjunction 5.This two relative position 331b, 331a are formed with respectively one first draw-in groove 41 and one first card article 51, and defining respectively this first conjunction 4 and this second conjunction 5, this first draw-in groove 41 and this first card article 51 be tabling and make this cited deformable ends 331 maintain the state of sealing separably.
In addition, this first conjunction 4 also can be the assembly of independent design with this second conjunction 5, then be located on the inner peripheral surface of these two relative position 331a, 331b, wherein this first conjunction 4 is formed with this first draw-in groove 41, and this second conjunction 5 comprises this first card article 51 (as shown in Figure 8).
In this preferred embodiment, this first conjunction 4 is respectively this first draw-in groove 41 and this first card article 51 with this second conjunction 5, but be familiar with this operator and can recognize that also this first conjunction 4 and this second conjunction 5 also can be designed as the structure that other are connected separably, for example this first conjunction 4 and this second conjunction 5 are respectively the mutual soft magnet of magnetic.
The outer peripheral face of this pedestal cylinder 31 and this intermediate cylinder 32 has extended to form respectively two guide channels 313,328 along this length direction.The inner peripheral surface of this intermediate cylinder 32 and this termination barrel 33 also has respectively two guide members 327,334 that match with described guide channel 313,328.Each guide member 327 of this intermediate cylinder 32 is rabbeted respectively slippingly in the corresponding guide channel 313 of this pedestal cylinder 31, and each guide member 334 of this termination barrel 33 is rabbeted respectively slippingly in the corresponding guide channel 328 of this intermediate cylinder 32.Described guide channel 313,328 and described guide member 327,334 start that matches can make this cartridge unit 3 stably flexible and can not deflect.In this preferred embodiment, described guide member 327,334 is respectively a raised line along this length direction extension, and it is rabbeted slippingly in corresponding guide channel 313,328.
The outer peripheral face of this pedestal cylinder 31 and this intermediate cylinder 32 is formed with respectively an annular positioning groove 312,323 along the periphery direction on away from an end of this needle stand 21.The inner peripheral surface of this intermediate cylinder 32 and this termination barrel 33 also has respectively a locating ring 326,333 along the periphery direction on an end of contiguous this needle stand 21.When this cartridge unit 3 launched, the annular positioning groove 312 of this pedestal cylinder 31 and this intermediate cylinder 32,323 can block the setting position separably for this intermediate cylinder 32 and this termination barrel 33 corresponding locating rings 326,333 respectively.
In addition, the second draw-in groove 324 of this intermediate cylinder 32 and the second card article 325 be positioned at this ring-like locating slot 323 and end 321, location end face between the two, therefore when this cartridge unit 3 shrinks, 324 of the second draw-in grooves of this intermediate cylinder 32 can be established for the first card article 51 cards of this termination barrel 33, and the second card article 325 of this intermediate cylinder 32 is fastened in the first draw-in groove 41 of this termination barrel 33 separably.
Consult Fig. 3 and Fig. 6, the cited deformable ends 331 of this termination barrel 33 can be out of shape between one first state and one second state.Under this first state, this two relative position 331a, 331b press close to each other, and this first draw-in groove 41 and this first card article 51 tabling and seal this cited deformable ends 331 each other, and this moment, this cited deformable ends 331 was flat structure (such as Fig. 7).Under this second state, this two relative position 331a, 331b make this cited deformable ends 331 define an opening 332 away from each other.
When this cited deformable ends 331 is in this first state, the application of force is oppressed two opposition sides of the flat structure of this cited deformable ends 331, can make this first draw-in groove 41 and this first card article 51 break away from each other chimerism, this two relative position 331a, 331b are out of shape and away from each other, then make this cited deformable ends 331 form the opening 332 that can supply this needle body 22 to pass.
Consult Fig. 4 and Fig. 5, this cartridge unit 3 can switch between a deployed condition and a contraction state.When this deployed condition, the locating ring 326 of this intermediate cylinder 32 is fastened in the annular positioning groove 312 of this pedestal cylinder 31 separably, and the locating ring 333 of this termination barrel 33 is fastened in the annular positioning groove 323 of this intermediate cylinder 32 separably.By described annular positioning groove 312,323 and described locating ring 326,333 the card that matches establish, can make this cartridge unit 3 stably maintain this deployed condition.
At this moment, these needle body 22 quilt covers are overlying in this cartridge unit 3, and this needle body 22 wore the location pin hole 322 of this intermediate cylinder 32.The application of force makes this termination barrel 33 move toward these needle stand 21 directions, and this pedestal cylinder 31, this intermediate cylinder 32 and this termination barrel 33 are stacked on top of each other, and this cartridge unit 3 namely is in this contraction state.
When this contraction state, the first draw-in groove 41 of this termination barrel 33 and the first card article 51 are established with the second card article 325 and the second draw-in groove 324 cards of this intermediate cylinder 32 respectively.At this moment, this needle body 22 passes the opening 332 of this cited deformable ends 331 and extends outside this cartridge unit 3.In the flexible process of this cartridge unit 3, these location pin hole 322 permanent these needle bodies 22 of confession wear, and this needle body 22 is positioned on the same axis of this cartridge unit 3 and is not offset.
Before the use, make first this cited deformable ends 331 be in the second state of this formation opening 332, make again this cartridge unit 3 be in this contraction state, can expose this needle body 22 with injection.After the use, make first this cartridge unit 3 return back to this deployed condition along the direction of this syringe needle 2, the application of force is oppressed two relative position 331a, 331b of this cited deformable ends 331 again, can make this cited deformable ends 331 be in the first state of this sealing.
In sum, by two relative position 331a, the 331b distortion of this cited deformable ends 331, this first draw-in groove 41 and this first card article 51 be tabling and make the cited deformable ends 331 of this cartridge unit 3 keep sealing or form opening 332 separably.Utilize simultaneously the flexible operation of cartridge unit 3 of the present invention, exempt from dismounting ground and this needle body 22 is exposed or quilt cover covers, can avoid occuring the danger of pinprick, therefore really can reach purpose of the present invention.
The above person of thought, it only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence of namely generally doing according to claim of the present invention and invention description content changes and modifies, and all still belongs in the scope that patent of the present invention contains.
Claims (8)
1. the safety device of an injection needle is used for the syringe needle that cover covers a syringe, this syringe needle include a needle stand and one by this needle stand along the needle body that a length direction extends, it is characterized in that:
The safety device of this injection needle includes:
One can be along the flexible cartridge unit of this length direction, the connection end that comprises this needle stand of vicinity, and one away from this needle stand and can be subjected to external force deformation and the cited deformable ends that opens and closes, this cited deformable ends has two relative positions, and can between a kind of the first state and a kind of the second state, be out of shape, under this first state, these two relative positions are close to each other and seal this cited deformable ends, under this second state, these two relative positions make this cited deformable ends define an opening away from each other; And
First conjunction and second conjunction, be arranged at respectively two relative positions of this cited deformable ends, match separably and make this cited deformable ends maintain this first state, this cartridge unit can switch between a kind of deployed condition and a kind of contraction state, when this deployed condition, this needle body quilt cover is overlying in this cartridge unit, and when this contraction state, this needle body passes the opening of this cited deformable ends and extends outside this cartridge unit.
2. the safety device of injection needle according to claim 1, it is characterized in that: these two relative positions are formed with respectively first draw-in groove and first card article, and then defining respectively this first conjunction and this second conjunction, this first draw-in groove and this first card article be tabling and make this cited deformable ends maintain this first state separably.
3. the safety device of injection needle according to claim 1, it is characterized in that: this first conjunction and this second conjunction fit in respectively these two relative positions of this cited deformable ends, this first conjunction is formed with first draw-in groove, this second conjunction comprises first card article, and this first draw-in groove and this first card article be tabling and make this cited deformable ends maintain this first state separably.
4. the safety device of injection needle according to claim 1, it is characterized in that: this cartridge unit comprises that one has the pedestal cylinder of this connection end, an intermediate cylinder that is sheathed on slippingly this pedestal cylinder outer peripheral face, and a termination barrel that is sheathed on slippingly this intermediate cylinder outer peripheral face and has this cited deformable ends.
5. the safety device of injection needle according to claim 4, it is characterized in that: this first conjunction is formed with first draw-in groove, this second conjunction is formed with first card article, and this first draw-in groove and this first card article be tabling and make this cited deformable ends maintain this first state separably.
6. the safety device of injection needle according to claim 5, it is characterized in that: this intermediate cylinder has one away from the end, location of this needle stand, the outer peripheral face of this end, location be formed with one can for this first draw-in groove the second card article of tabling separably, and one can for this first card article the second draw-in groove of tabling separably.
7. the safety device of injection needle according to claim 6 is characterized in that: the end face of the end, location of this intermediate cylinder is formed with a location pin hole that can stably wear for this needle body.
8. the safety device of injection needle according to claim 1 is characterized in that: the connection end of this cartridge unit is and this needle stand bolt separably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100844646A CN103357090A (en) | 2012-03-27 | 2012-03-27 | Infusion needle safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100844646A CN103357090A (en) | 2012-03-27 | 2012-03-27 | Infusion needle safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103357090A true CN103357090A (en) | 2013-10-23 |
Family
ID=49359879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100844646A Pending CN103357090A (en) | 2012-03-27 | 2012-03-27 | Infusion needle safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103357090A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120934A (en) * | 2013-12-31 | 2015-12-02 | Saferwith有限公司 | Syringe needle assembly, and safety syringe and safety syringe apparatus using same |
| CN106730139A (en) * | 2015-11-23 | 2017-05-31 | 上海金塔医用器材有限公司 | Needling device |
| US10265467B2 (en) | 2015-11-23 | 2019-04-23 | Gemtier Medical (Shanghai) Inc. | Needle device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4863434A (en) * | 1988-01-29 | 1989-09-05 | Bayless William B | Automatic needle sheath for disposable syringe |
| US4892521A (en) * | 1988-08-03 | 1990-01-09 | Lincoln Mills, Inc. | Protective cover for hypodermic needle |
| US4950249A (en) * | 1989-06-09 | 1990-08-21 | University Of Virginia Alumni Patents Foundation | Hypodermic needle with reclosable safety cap |
| GB2239604A (en) * | 1989-12-21 | 1991-07-10 | Andrew William Steer | Needle protector |
-
2012
- 2012-03-27 CN CN2012100844646A patent/CN103357090A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4863434A (en) * | 1988-01-29 | 1989-09-05 | Bayless William B | Automatic needle sheath for disposable syringe |
| US4892521A (en) * | 1988-08-03 | 1990-01-09 | Lincoln Mills, Inc. | Protective cover for hypodermic needle |
| US4950249A (en) * | 1989-06-09 | 1990-08-21 | University Of Virginia Alumni Patents Foundation | Hypodermic needle with reclosable safety cap |
| GB2239604A (en) * | 1989-12-21 | 1991-07-10 | Andrew William Steer | Needle protector |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120934A (en) * | 2013-12-31 | 2015-12-02 | Saferwith有限公司 | Syringe needle assembly, and safety syringe and safety syringe apparatus using same |
| EP3090772A4 (en) * | 2013-12-31 | 2017-10-18 | Saferwith, Inc. | Syringe needle assembly, and safety syringe and safety syringe apparatus using same |
| CN105120934B (en) * | 2013-12-31 | 2018-03-30 | Saferwith有限公司 | Syringe needle head assembly and the safety injector and safety syringe apparatus using the component |
| CN108114348A (en) * | 2013-12-31 | 2018-06-05 | Saferwith有限公司 | Syringe needle head assembly |
| CN106730139A (en) * | 2015-11-23 | 2017-05-31 | 上海金塔医用器材有限公司 | Needling device |
| US10265467B2 (en) | 2015-11-23 | 2019-04-23 | Gemtier Medical (Shanghai) Inc. | Needle device |
| CN106730139B (en) * | 2015-11-23 | 2019-06-25 | 上海金塔医用器材有限公司 | Needling device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131023 |