CN201085830Y - Spring type safe self-breaking syringe - Google Patents
Spring type safe self-breaking syringe Download PDFInfo
- Publication number
- CN201085830Y CN201085830Y CNU2007200601140U CN200720060114U CN201085830Y CN 201085830 Y CN201085830 Y CN 201085830Y CN U2007200601140 U CNU2007200601140 U CN U2007200601140U CN 200720060114 U CN200720060114 U CN 200720060114U CN 201085830 Y CN201085830 Y CN 201085830Y
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- CN
- China
- Prior art keywords
- needle stand
- injection tube
- card
- bulge loop
- clasped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a spring type safe syringe with self-destruction function, which comprises a needle sleeve, steel needles, a needle base, an injection tube and a core rod arranged inside the injection tube. The steel needles are arranged at the upper part of the needle base; a clip hook is arranged at the lower part of the needle base; the needle base is arranged inside a shrinking segment of the top of the injection tube; a protruded clip ring is arranged on the external periphery of the needle base; a clip concave groove is arranged on the internal periphery of the shrinking segment of the injection tube; a bottom stopper is arranged at the lower end of the hollow tubular core rod; a neck shrinking tube segment is arranged at the upper part of the core rod; a rubber stopper is arranged outside the neck shrinking tube segment; an end stopper is arranged inside the neck shrinking tube segment; a spring is nested at the lower part of the end stopper; the clip concave groove is arranged on the internal wall of the neck shrinking tube segment; the protruded clip ring is arranged on the external periphery of the end stopper; a clip ring is arranged at the upper end of the end stopper; the clip ring is matched with the clip hook by latch-lock. With novel structure and simple assembly process, the utility model is applicable for large-scale mechanized production by assembly line.
Description
Technical field:
This utility model relates to a kind of disposable syringe, can make draw point recoil to the interior safety type self-destroyed syringe of injection tube after especially a kind of the use.
Background technology:
Cause the cross infection of virus for fear of using antihygienic syringe, disposable syringe is widely used at medical field.Reuse in order to stop artificial recovery, people are provided with self-desttruction equipment on disposable syringe.But,, causes common self-destruction syringe the cross infection of virus though preventing the repeated use of syringe to a certain extent, but syringe uses the back because draw point exposes and makes depleted syringe produce many inconvenience in processes such as collection, transportation, processing, still might stab medical worker and other relevant personnel, cause the infection of virus and bacteria.
Chinese patent once disclosed multinomial steel needle retractable destructing safety formula syringe, but the characteristics of its structure are between needle stand and inside, injection tube upper end rebound spring to be set, after using described injector to inject, under the effect of spring, draw point is gone in the cavity of core bar together with needle stand by resilience, prevent that syringe from using the back because draw point exposes the phenomenon generation of stabbing the relevant personnel, reach purpose of safety.Described syringe, its weak point are structure and assembly technology complexity.
Summary of the invention:
The purpose of this utility model is to overcome the weak point of the above syringe, provides a kind of structure and assembly technology simple, can realize the spring type safety self-destruction syringe of automated production.
This utility model, comprise draw point, needle stand, injection tube and be positioned at the core bar of injection tube, at the top of needle stand installing draw point, bottom at needle stand is provided with grab, needle stand is built among the injection tube top reducing section, on the periphery wall of needle stand, be provided with the card bulge loop, on the internal perisporium of injection tube reducing section, be provided with and block the card groove that bulge loop is clasped; Described core bar is hollow tubular structure, its lower end is provided with bottom plug, the upper end is provided with the necking down pipeline section, the exterior arrangement plug of necking down pipeline section, the internal configurations end plug of necking down pipeline section at the bottom of end plug pocketed springs, is provided with the card groove on the inwall of necking down pipeline section, be provided with the card bulge loop on the periphery wall of end plug, the card bulge loop is clasped with the card groove; Upper end at end plug is provided with snap ring, and snap ring and described grab are clasped.
This utility model is provided with outer needle stand, and the bottom of outer needle stand is connected with injection tube top reducing section angle-inserting type.Being connected also can adopt of the outer needle stand that is provided with and injection tube top reducing section is threaded.Angle-inserting type connects and to comprise and be arranged at the taper seat that outer needle stand bottom and injection tube reducing section cooperatively interact, the internal perisporium of needle stand is provided with the card groove outside, be provided with the card bulge loop on the periphery wall of injection tube reducing section, card groove and card bulge loop are clasped, and needle stand is built among the outer needle stand.
This utility model is provided with outer needle stand, still can the card bulge loop be set on the periphery wall of needle stand, and the card groove that is clasped with the card bulge loop is set on the internal perisporium of injection tube reducing section; Also the card bulge loop can be set on the periphery wall of needle stand, the card groove that is clasped with the card bulge loop is set on the internal perisporium on needle stand top outside.
This utility model, the gradient of the taper seat that described slotting formula connects can be chosen 6: 100.
This utility model, described plug can adopt the elasticity plug.The elasticity plug is applied in after the spring type safety self-destruction syringe, can be under the prerequisite that does not change syringe construction, and plug can arrive " 0 " scale position, and the medicine that residues in the injection tube after the medicine injection meets relevant prescription.
Advantages such as this utility model has novel structure, and assembly technology is simple are applicable to the streamline mass mechanized production.
Description of drawings:
Fig. 1 to Fig. 3 is the structure principle chart of embodiment 1, and wherein: Fig. 1 is a structure principle chart; Fig. 2 is the steel needle retractable fundamental diagram; Fig. 3 is for using the view of back steel needle retractable to hollow core bar inside.
Fig. 4 to Fig. 6 is the structure principle chart of embodiment 2, and wherein: Fig. 4 is a structure principle chart; Fig. 5 is the steel needle retractable fundamental diagram; Fig. 6 is for using the view of back steel needle retractable to hollow core bar inside.
Fig. 7 to Fig. 9 is the structure principle chart of embodiment 3, and wherein: Fig. 7 is a structure principle chart; Fig. 8 is the steel needle retractable fundamental diagram; Fig. 9 is for using the view of back steel needle retractable to hollow core bar inside.
Figure 10 is the structure principle chart of embodiment 4.
Among the figure, 1, needle guard 2, draw point 3, needle stand 4, outer needle stand 5, grab 6, snap ring 7, plug 8, spring 9, end plug 10, injection tube 11, core bar 12, bottom plug 13, end mistake piece 14, filler chamber 15, card bulge loop 16, card groove 17, card bulge loop 18, card groove 19, card bulge loop 20, card groove 21, necking down pipeline section 22, reducing section 23, external screw thread 24, female thread.
The specific embodiment:
Embodiment 1, with reference to Fig. 1-Fig. 3, a kind of spring type safety self-destruction syringe, comprise needle guard 1, draw point 2, needle stand 3, injection tube 10 and the core bar 11 that is positioned at injection tube, the top installing draw point 2 of needle stand, upper end at needle stand, filler chamber 14 is set, as being used for fixing after the applying glue and sealing draw point, in the bottom of needle stand 3 grab 5 is set, needle stand 3 is built among the injection tube 10 top reducing sections 22, on the periphery wall of needle stand 3, be provided with card bulge loop 15, on the internal perisporium of injection tube 10 reducing sections 22, be provided with and block the card groove 16 that bulge loop 15 is clasped, card bulge loop 15 and 16 cooperations of card groove can prevent to contract in the needle stand 3, guarantee carrying out smoothly of injection work, also can play sealing function; Described core bar 11 is hollow tubular structure, and its lower end is provided with bottom plug 12, and the upper end is provided with necking down pipeline section 21, the exterior arrangement plug 7 of necking down pipeline section, described plug adopts the elasticity plug, and the internal configurations end plug 9 of necking down pipeline section is at the bottom of end plug 9 pocketed springs 8, on the inwall of necking down pipeline section, be provided with card groove 18, be provided with card bulge loop 17 on the periphery wall of end plug, the card bulge loop is clasped with the card groove, can prevent to contract in the end plug, guarantee carrying out smoothly of injection work, also can play sealing function; Be provided with snap ring 6 in the upper end of end plug 9, snap ring and described grab 5 are clasped.
Its using method and operation principle are as follows:
When clinical use, remove earlier and end mistake piece 13, take off needle guard 1, the using method of syringe extracts medicinal liquid routinely then, and also the using method of syringe is carried out injecting liquid drug routinely.When liquid medicine injection finished back core bar continuation propelling, the grab 5 of needle stand 3 lower ends was connected with snap ring 6 contacts and the buckle of end plug 9 upper ends.When core bar continued to advance, on the one hand, elasticity plug 7 was compressed, savings energy (as shown in Figure 2); Aspect in addition, under needle stand 3 reaction force acts, end plug 9 moves down, and when making a concerted effort during buckle frictional force greater than card bulge loop 15 and card groove 16 of the tension force of the long-pending energy of elasticity plug 7 and rebound spring 8, makes a concerted effort end plug 9 is sprung into together with needle stand 3 and draw point 2 in the cavity of core bar 11 (as shown in Figure 3).At this moment, syringe disintegrates and can't reuse, and the draw point of crossing with medicinal liquid and contact patients 2 all is stored in the cavity of core bar 11, reaches self-destruction, safe effect.
Its using method and operation principle are identical with embodiment 1.But, make assembly technology simpler owing to set up outer needle stand.That is: the mounted inside mode that the assembling of needle stand 3 is packed into from injection tube 10 bottoms becomes the external mounting mode of packing into from injection tube 10 tops, helps automatic assembly line production, enhances productivity.
Claims (5)
1. spring type safety self-destruction syringe, comprise draw point (2), needle stand (3), injection tube (1 0) and be positioned at the core bar (11) of injection tube, it is characterized by: at the top of needle stand (3) installing draw point (2), in the bottom of needle stand (3) grab (5) is set, needle stand (3) is built among injection tube (10) the top reducing section (22), on the periphery wall of needle stand (3), be provided with card bulge loop (15), on the internal perisporium of injection tube (10) reducing section (22), be provided with and block the card groove (16) that bulge loop (15) is clasped; Described core bar (11) is hollow tubular structure, its lower end is provided with bottom plug (12), the upper end is provided with necking down pipeline section (21), the exterior arrangement plug (7) of necking down pipeline section, the internal configurations end plug (9) of necking down pipeline section, the bottom pocketed springs (8) at end plug (9) is provided with card groove (18) on the inwall of necking down pipeline section, be provided with card bulge loop (17) on the periphery wall of end plug, the card bulge loop is clasped with the card groove; Be provided with snap ring (6) in the upper end of end plug (9), snap ring and described grab (5) are clasped.
2. spring type safety self-destruction syringe according to claim 1, it is characterized by: outer needle stand (4) is set, the bottom of outer needle stand (4) is connected with injection tube (10) top reducing section (22) angle-inserting type, angle-inserting type connects and to comprise and be arranged at the taper seat that outer needle stand (4) bottom and injection tube (10) reducing section (22) cooperatively interact, the internal perisporium of needle stand is provided with card groove (20) outside, on the periphery wall of injection tube (10) reducing section (22), be provided with card bulge loop (19), card groove and card bulge loop are clasped, and needle stand (3) is built among the outer needle stand (4).
3. spring type safety self-destruction syringe according to claim 2 is characterized by: be provided with card bulge loop (15) on the periphery wall of needle stand (3), the internal perisporium on needle stand (4) top is provided with and blocks the card groove (16) that bulge loop (15) is clasped outside.
4. according to claim 2 or 3 described spring type safety self-destruction syringes, it is characterized by: the gradient of the taper seat that described slotting formula connects is 6: 100.
5. spring type safety self-destruction syringe according to claim 1, it is characterized by: outer needle stand (4) is set, the bottom of outer needle stand (4) is threaded with injection tube (10) top reducing section (22), be threaded comprise the female thread (24) that is arranged at outer needle stand (4) bottom and on the periphery wall of injection tube (10) reducing section (22), be provided with and with the external screw thread (23) of female thread (24) engagement, described needle stand (3) is built among the outer needle stand (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200601140U CN201085830Y (en) | 2007-11-25 | 2007-11-25 | Spring type safe self-breaking syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200601140U CN201085830Y (en) | 2007-11-25 | 2007-11-25 | Spring type safe self-breaking syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201085830Y true CN201085830Y (en) | 2008-07-16 |
Family
ID=39633418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200601140U Expired - Fee Related CN201085830Y (en) | 2007-11-25 | 2007-11-25 | Spring type safe self-breaking syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201085830Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218175A (en) * | 2010-04-14 | 2011-10-19 | 李华美 | Retractable needle cylinder for steel needle |
| WO2011127750A1 (en) * | 2010-04-14 | 2011-10-20 | 浙江康泰医疗器械有限公司 | Syringe with retracting steel needle |
-
2007
- 2007-11-25 CN CNU2007200601140U patent/CN201085830Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218175A (en) * | 2010-04-14 | 2011-10-19 | 李华美 | Retractable needle cylinder for steel needle |
| WO2011127750A1 (en) * | 2010-04-14 | 2011-10-20 | 浙江康泰医疗器械有限公司 | Syringe with retracting steel needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG HAIOU MEDICAL APPARATUS STOCK CO., LTD. Free format text: FORMER OWNER: LUO SONGNENG Effective date: 20120110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120110 Address after: 515300 Guangdong city of Jieyang province Puning City quicksand South West of the old school Zhacun Patentee after: Guangdong Haiou Medical Apparatus Stock Co., Ltd. Address before: 515300 Puning City, Guangdong Province, Ma sand Horse Industrial Zone, Puning City seagull Medical Equipment Co., Ltd. Patentee before: Luo Songneng |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20161125 |