CN101856529B - Safe needle cylinder - Google Patents
Safe needle cylinder Download PDFInfo
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- CN101856529B CN101856529B CN2009101303922A CN200910130392A CN101856529B CN 101856529 B CN101856529 B CN 101856529B CN 2009101303922 A CN2009101303922 A CN 2009101303922A CN 200910130392 A CN200910130392 A CN 200910130392A CN 101856529 B CN101856529 B CN 101856529B
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- inner core
- plug
- urceolus
- needle
- pull bar
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Abstract
The invention discloses a safe needle cylinder comprising an outer cylinder, a needle stand, an outer cylinder rubber plug, an inner cylinder, an inner cylinder rubber plug, a needle clamper and a vacuum generation device, wherein the outer cylinder comprises an outer cylinder front end and an outer cylinder rear end; the needle stand is arranged in the outer cylinder front end; the outer cylinder rubber plug is arranged in the outer cylinder and is combined with the needle stand so as to fix the needle stand; the inner cylinder comprises an inner cylinder front end and an inner cylinder rear end and penetrates in the outer cylinder from the outer cylinder rear end; the inner cylinder rubber plug is arranged at the inner cylinder front end; the needle clamper is embedded with the inner cylinder rubber plug and can be combined with a rear end opening of the needle stand; the vacuum generation device is arranged in the inner cylinder; and the needle stand can sucked into the inner cylinder by dint of the low pressure generated by the vacuum generation device.
Description
Technical field
The present invention relates to a kind of safety syringe-drum, particularly relate to a kind of safety syringe-drum with device for vacuum generation.
Background technology
Fig. 1 is the structural representation of existing convention syringe 100.The syringe 100 of existing convention comprises: a urceolus 110, a push rod 120 and needle assembly 130.Needle assembly 130 is fixed in the front end of urceolus 110 by screw thread; Push rod 120 has rubber piston part 121; The inwall of rubber piston part 121 and urceolus 110 is kept airtight, when user is exerted pressure to push rod 120 by the rear, can medicament be extruded by the pin mouth of needle assembly 130.When syringe 100 injections of existing convention finish, user reclaims after must needle assembly 130 being put needle guard with staff.In case careless manipulation promptly possibly stabbed by needle assembly 130 because of carelessness, and increased the probability that catches.Therefore, many medical device dealers are devoted to develop the safety syringe-drum that can reclaim needle assembly 130 automatically, and user can reduce infected chance.
Safety syringe-drum typically uses mechanism such as spring or low pressure, syringe needle is accommodated in the syringe automatically, wherein after injection is accomplished; Low pressure normally when syringe is made, is promptly sealed up for safekeeping in syringe, yet; Before syringe uses; Extraneous air can be inhaled in the syringe gradually, and causes aforesaid low pressure to be lost gradually, can't smoothly syringe needle be sucked in the syringe at last even because suction is not enough.
This shows that above-mentioned existing safety syringe-drum obviously still has inconvenience and defective, and demands urgently further improving in structure and use.In order to solve the problem of above-mentioned existence; Relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly; But do not see always that for a long time suitable design is developed completion, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of safety syringe-drum of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing safety syringe-drum exists; The inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and Professional knowledge; And cooperate the utilization of studying the science, actively study innovation, in the hope of founding a kind of safety syringe-drum of new structure; Can improve general existing safety syringe-drum, make it have more practicality.Through constantly research, design, and, found out the present invention of true tool practical value finally through after studying sample and improvement repeatedly.
Summary of the invention
The objective of the invention is to; Overcome the defective that existing safety syringe-drum exists; And a kind of safety syringe-drum with device for vacuum generation is provided; Technical problem to be solved is to make it produce enough low pressure by device for vacuum generation, avoids because of suction is not enough syringe needle being sucked in the safety syringe-drum smoothly.
The object of the invention and solve its technical problem and adopt following technical scheme to realize.According to a kind of safety syringe-drum that the present invention proposes, it comprises: a urceolus, this urceolus comprise an outer cylinder front end and an outer tube rear end; One needle stand, this needle stand are arranged in this outer cylinder front end; One urceolus plug, this urceolus plug is arranged in this urceolus, and this urceolus plug combines with this needle stand, uses fixing this needle stand; One inner core, this inner core comprise tube rear end in an inner core front end and, and this inner core penetrates this urceolus by this outer tube rear end; One inner core plug, this inner core plug is arranged at the front end of this inner core; One needle holder, this needle holder and this inner core plug tabling, this needle holder can combine with an open rearward end of this needle stand; And a device for vacuum generation, this device for vacuum generation is arranged in this inner core, and wherein, this needle stand can suck this inner core by the low pressure that this device for vacuum generation produced.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Aforesaid safety syringe-drum, wherein said device for vacuum generation comprise a vacuum plug, keep between this vacuum plug and this inner core airtight, when this vacuum plug towards this inner core should in tube rear end when moving, this inner core inside can produce low pressure.
Aforesaid safety syringe-drum, wherein said device for vacuum generation comprises a pull bar, and this pull bar is connected to this vacuum plug, by this pull bar this vacuum plug is moved.
Aforesaid safety syringe-drum, wherein said pull bar comprise a pull bar front end and a back end of tie rod, and this pull bar front end is connected to this vacuum plug.
Aforesaid safety syringe-drum, wherein said pull bar comprise one first broken part, and this first broken part is near this pull bar front end.
Aforesaid safety syringe-drum, wherein said pull bar comprise one second broken part, and this second broken part is near this back end of tie rod, and this back end of tie rod has a closure, and this closure can be sealed this outer cylinder front end of this urceolus.
Aforesaid safety syringe-drum, the material of wherein said pull bar are polypropylene (polypropylene).
Aforesaid safety syringe-drum, wherein said vacuum plug are to make with an elastic material.
Aforesaid safety syringe-drum, wherein said urceolus has a connecting support, and this needle stand is arranged on this connecting support.
Aforesaid safety syringe-drum, it also comprises a syringe needle, and a front end of this needle stand is connected to this syringe needle.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme; Safety syringe-drum of the present invention has advantage and beneficial effect at least: user can produce enough low pressure by device for vacuum generation; Syringe needle is sucked in the safety syringe-drum smoothly, can the person of avoiding the use of be exposed in the infection risk of manual recovery syringe needle, in addition; Also can effectively avoid causing suction deficiency and can't smoothly syringe needle being sucked in the syringe because stored for a long time.
In sum, the present invention provides a kind of safety syringe-drum, and this safety syringe-drum comprises a urceolus, a needle stand, a urceolus plug, an inner core, an inner core plug, a needle holder and a device for vacuum generation.Urceolus comprises an outer cylinder front end and an outer tube rear end; Needle stand is arranged in the outer cylinder front end; The urceolus plug is arranged in the urceolus, and the urceolus plug combines with needle stand, uses fixing this needle stand; Inner core comprises tube rear end in an inner core front end and, and inner core penetrates this urceolus by outer tube rear end; The inner core plug is arranged at this inner core front end; Needle holder and this inner core plug tabling, this needle holder can combine with an open rearward end of needle stand; Device for vacuum generation is arranged in this inner core, and wherein, needle stand can suck inner core by the low pressure that this device for vacuum generation produced.The present invention has obvious improvement technically, and has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of description, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the structural representation of the syringe of existing convention.
Fig. 2 A is the generalized section of safety syringe-drum preferred embodiment of the present invention.
Fig. 2 B is the section enlarged diagram of safety syringe-drum front end among Fig. 2 A.
Fig. 2 C is the section enlarged diagram of inner core among Fig. 2 A.
Fig. 2 D to Fig. 2 H is among Fig. 2 A, the use sketch map of safety syringe-drum.
100: convention syringe 110: urceolus
120: push rod 121: the rubber piston part
130: needle assembly 200: safety syringe-drum
210: urceolus 211: outer cylinder front end
212: outer tube rear end 215: connecting support
220: needle stand 221: open rearward end
230: urceolus plug 240: inner core
241: inner core front end 242: interior tube rear end
250: inner core plug 260: needle holder
270: device for vacuum generation 271: the vacuum plug
272: pull bar 280: syringe needle
290: sealing ring 2721: the pull bar front end
2722: back end of tie rod 2723: closure
2725: the second broken parts, 2724: the first broken parts
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of safety syringe-drum, structure, characteristic and the effect thereof that proposes according to the present invention is elaborated.
Some embodiments of the present invention will be described in detail as follows.Yet except following description, the present invention can also be widely implements at other embodiment, and scope of the present invention does not receive the qualification of embodiment.Moreover for clearer description being provided and being more readily understood the present invention, graphic interior each several part is not drawn according to its relative size, and some size is compared with other scale dependents and exaggerated; Incoherent detail section is not drawn fully yet, in the hope of graphic succinct.
Seeing also shown in Fig. 2 A to Fig. 2 C, is respectively the generalized section of safety syringe-drum preferred embodiment of the present invention, the section enlarged diagram of safety syringe-drum front end and the section enlarged diagram of middle inner core.The safety syringe-drum 200 of preferred embodiment of the present invention comprises a urceolus 210, a needle stand 220, a urceolus plug 230, an inner core 240, an inner core plug 250, a needle holder 260 and a device for vacuum generation 270.Wherein, urceolus 210 comprises an outer cylinder front end 211 and an outer tube rear end 212; Inner core 240 comprises tube rear end 242 in an inner core front end 241 and; This inner core 240 penetrates this urceolus 210 by outer tube rear end 212; Device for vacuum generation 270 is arranged in the inner core 240.
Above-mentioned needle stand 220 is arranged in the outer cylinder front end 211, and the front end of needle stand 220 is connected to a syringe needle 280, and needle stand 220 has an open rearward end 221; Urceolus plug 230 is arranged in this urceolus 210; Urceolus plug 230 combines with needle stand 220, uses fixing this needle stand 220, in the present embodiment; Urceolus 210 has a connecting support 215; Needle stand 220 is arranged on this connecting support 215, and connecting support 215 can avoid needle stand 220 closely to be clamped by urceolus plug 230, and makes needle stand 220 can't be inhaled into inner core 240.
Above-mentioned safety syringe-drum 200 comprises at least one sealing ring 290; Sealing ring 290 is sheathed on inner core 240, uses that inner core 240 and 210 of urceolus are kept is airtight, and sealing ring 290 can adopt O type ring; But not as limit, sealing ring 290 also can be that other can keep gastight structure.
Above-mentioned inner core plug 250 is arranged at the inner core front end 241 of inner core 240; Needle holder 260 and inner core plug 250 tablings, needle holder 260 can combine with the open rearward end 221 of needle stand 220; Device for vacuum generation 270 is arranged in this inner core 240, and wherein, needle stand 220 can suck this inner core 240 by the low pressure that device for vacuum generation 270 is produced.
In the present embodiment, device for vacuum generation 270 comprises a vacuum plug 271 and a pull bar 272, and vacuum plug 271 is to make with an elastic material, and elastic material can be rubber, silica gel or other elastomeric materials; 272 on pull bar is to make with polypropylene (polypropylene); Pull bar 272 comprises a pull bar front end 2721 and a back end of tie rod 2722; Pull bar front end 2721 is connected to this vacuum plug 271; Back end of tie rod 2722 has a closure 2723, and this closure 2723 can be sealed the outer cylinder front end 211 of urceolus 210.In addition, pull bar 272 comprise one first broken part 2724 and 2725, the first broken parts 2724, one second broken part near pull bar front end 2721, the second broken parts 2725 near back end of tie rod 2722.
240 of vacuum plug 271 and inner cores are kept airtight, and pull bar 272 is connected to vacuum plug 271, by pull bar 272 this vacuum plug 271 are moved; Take seriously hungry area plug 271 when move this rear end of inner core 240; These inner core 240 inside can produce low pressure, and aforesaid low pressure is relevant with the diameter and the displacement of vacuum plug 271, when displacement fixedly the time; The diameter of vacuum plug 271 is big more, the low pressure that produces strong more; When taking seriously the fixed diameter of hungry area plug 271, displacement is big more, the low pressure that produces strong more, the diameter of vacuum plug 271 and displacement are to design according to actual state.In the present embodiment, device for vacuum generation 270 comprises a vacuum plug 271 and a pull bar 272, but not as limit, device for vacuum generation 270 also can be other devices that can produce low pressure.
Fig. 2 D to Fig. 2 H is the use sketch map of safety syringe-drum 200 among Fig. 2 A.At first, please refer to Fig. 2 D and Fig. 2 E, user pulls back pull bar 272, and vacuum plug 271 is moved towards the interior tube rear end 242 of inner core 240, and at this moment, inner core 240 inside can produce suitable low pressure.Then, please refer to Fig. 2 F, first broken part 2724 of pull bar 272 is fractureed, pull bar 272 is taken off, and carry out the filling of medicinal liquid, medicinal liquid is filled in the safety syringe-drum 200.
Then, please refer to Fig. 2 G, when carrying out injecting liquid drug, inner core 240 moves towards the front end of safety syringe-drum 200; When injecting liquid drug was accomplished, needle holder 260 can combine with the open rearward end 221 of needle stand 220, and needle holder 260 can seal the open rearward end 221 of needle stand 220; At this moment, inner core 240 continues to move forward, and pushes urceolus plug 230 and removes combining of urceolus plug 230 and needle stand 220; At this moment, urceolus plug 230 is equipped in the connecting support 215 of urceolus 210, and 220 of needle stands are equipped in needle holder 260.Then, inner core 240 continues to move forward, and makes inner core plug 250 pushed by connecting support 215 and move towards inner core 240 inside; And then by in the low pressure suction inner core of inner core 240 inside; Because 220 of needle stands are equipped in needle holder 260, therefore, needle stand 220 is inhaled in the inner core by this.
At last, please refer to Fig. 2 H, a closure 2723 of pull bar 272 is inserted in the outer cylinder front end 211 of urceolus 210; Use the outer cylinder front end 211 of sealing urceolus 210, avoid medicinal liquid to flow out by outer cylinder front end 211, last; Second broken part 2725 of pull bar 272 is fractureed, remaining pull bar 272 is taken off.In the present embodiment, the design concept of safety syringe-drum 200 is applicable to the syringe of low capacity, for example, and 3CC, 5CC, 10CC, but not as limit, identical design concept also goes for the syringe of other capacity.
By safety syringe-drum of the present invention; User can produce enough low pressure by device for vacuum generation; Syringe needle is sucked in the safety syringe-drum smoothly, can the person of avoiding the use of be exposed in the infection risk of manual recovery syringe needle, in addition; Also can effectively avoid causing suction deficiency and can't smoothly syringe needle being sucked in the syringe because stored for a long time.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (6)
1. safety syringe-drum is characterized in that it comprises:
One urceolus, this urceolus comprise an outer cylinder front end and an outer tube rear end;
One needle stand, this needle stand are arranged in this outer cylinder front end;
One urceolus plug, this urceolus plug is arranged in this urceolus, and this urceolus plug combines with this needle stand, uses fixing this needle stand;
One inner core, this inner core comprise tube rear end in an inner core front end and, and this inner core penetrates this urceolus by this outer tube rear end;
One inner core plug, this inner core plug is arranged at the front end of this inner core;
One needle holder, this needle holder and this inner core plug tabling, this needle holder can combine with an open rearward end of this needle stand; And
One device for vacuum generation, this device for vacuum generation are arranged in this inner core, wherein; This needle stand can suck this inner core by the low pressure that this device for vacuum generation produced, and this device for vacuum generation comprises a vacuum plug and a pull bar, keeps airtight between this vacuum plug and this inner core; When this vacuum plug when move the rear end of this inner core, this inner core inside can produce low pressure, this pull bar is connected to this vacuum plug; By this pull bar this vacuum plug is moved, this pull bar comprises a pull bar front end and a back end of tie rod, and this pull bar front end is connected to this vacuum plug; This pull bar comprises one first broken part, and this first broken part is near this pull bar front end.
2. safety syringe-drum according to claim 1 is characterized in that wherein said pull bar comprises one second broken part, and this second broken part is near this back end of tie rod, and this back end of tie rod has a closure, and this closure can be sealed the front end of this urceolus.
3. safety syringe-drum according to claim 1, the material that it is characterized in that wherein said pull bar is a polypropylene.
4. safety syringe-drum according to claim 1 is characterized in that wherein said vacuum plug is to make with an elastic material.
5. safety syringe-drum according to claim 1 is characterized in that wherein said urceolus has a connecting support, and this needle stand is arranged on this connecting support.
6. safety syringe-drum according to claim 1 is characterized in that it also comprises a syringe needle, and a front end of this needle stand is connected to this syringe needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101303922A CN101856529B (en) | 2009-04-07 | 2009-04-07 | Safe needle cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101303922A CN101856529B (en) | 2009-04-07 | 2009-04-07 | Safe needle cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101856529A CN101856529A (en) | 2010-10-13 |
| CN101856529B true CN101856529B (en) | 2012-07-11 |
Family
ID=42942831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101303922A Expired - Fee Related CN101856529B (en) | 2009-04-07 | 2009-04-07 | Safe needle cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101856529B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI455736B (en) * | 2012-02-13 | 2014-10-11 | Chih Ming Wang | Multiple needle |
| CN107617143B (en) * | 2017-09-19 | 2020-11-20 | 洪模型 | Pull rod device for injector |
| CN108704197A (en) * | 2018-04-29 | 2018-10-26 | 东莞市联洲知识产权运营管理有限公司 | A kind of improved syringe of structure |
| CN112402051B (en) * | 2020-12-01 | 2021-07-20 | 韩笑 | Medical anesthetic needle based on life science and technology and use method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947806A (en) * | 2005-10-10 | 2007-04-18 | 杨仲玉 | Safety cylinder of injector |
| CN201030119Y (en) * | 2007-02-14 | 2008-03-05 | 董忠浩 | Safety syringe with the needle backing automatically |
-
2009
- 2009-04-07 CN CN2009101303922A patent/CN101856529B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947806A (en) * | 2005-10-10 | 2007-04-18 | 杨仲玉 | Safety cylinder of injector |
| CN201030119Y (en) * | 2007-02-14 | 2008-03-05 | 董忠浩 | Safety syringe with the needle backing automatically |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101856529A (en) | 2010-10-13 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120711 Termination date: 20170407 |