CN1092526C - Safety injuctor with syringe needle internal deflection and automatic demaging - Google Patents
Safety injuctor with syringe needle internal deflection and automatic demaging Download PDFInfo
- Publication number
- CN1092526C CN1092526C CN 96106985 CN96106985A CN1092526C CN 1092526 C CN1092526 C CN 1092526C CN 96106985 CN96106985 CN 96106985 CN 96106985 A CN96106985 A CN 96106985A CN 1092526 C CN1092526 C CN 1092526C
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- needle
- syringe
- piston
- cylindrical unit
- deflection
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- Expired - Fee Related
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Abstract
The present invention relates to a safety injuctor with a needle head which is internally withdrawn and automatically destroyed. The present invention is proposed for providing an injector which has the advantages of simple structure, low cost and thorough destroying of the needle head and can stop a phenomenon of environment pollution caused by the injector. The present invention is composed of a needle cylinder, a needle head group and a piston group, wherein both ends of the needle cylinder are respectively a needle cylinder body and a neck tube; the needle head group is composed of a hollow needle head body and a needle handle; the bottom end of a center through hole of the needle handle forms a conical recess with deflective center line, and a horn mouth; the needle head body is fixedly arranged on the center through hole of the needle handle; the piston group is composed of a piston and a piston rod; an arrow body is arranged on the piston; the center line of the arrow body is positioned in the center line of the neck tube of the needle cylinder.
Description
Technical field
The invention belongs to medium is imported intravital apparatus, the deflection that contracts in particularly a kind of syringe needle is the safety injector of damage automatically.
Background technology
Raising along with people's environmental consciousness, the common syringe that adopts disposable use and before abandoning, syringe needle is damaged, yet this disposable syringe of commonly using, not only complex structure, cost height, and its damage to syringe needle is thorough inadequately, still exists a big hidden danger of contaminated environment.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, cost is low, to syringe needle damage thoroughly, can stop the deflection safety injector of damage automatically that contracts in the syringe needle that phenomenon that syringe pollutes environment takes place.
The present invention is made up of syringe, syringe needle group and piston set, one end of syringe is for constituting the needle cylindrical unit of cavity, its other end is the neck tube that connects with the needle cylindrical unit cavity, and Zhou Congqian constitutes the oared segrne pii, conical bore section and the cylindrical hole section that stretch forward that is connected successively backward in the neck tube; The syringe needle group is made up of hollow pinhead body and needle handle, the front end of needle head body forms needle point, needle handle is elasticity, which is provided with central through hole, constitute the taper depression and the horn mouth that are connected successively of the relative central through hole lack of alignment of centrage in the bottom of central through hole, its periphery constitute backward in the past be connected successively and with the syringe neck tube in a tight waist section of all tablings, conical section and cylindrical section; Needle head body is fixedly mounted on the front end of needle handle central through hole with its rear end; Piston set is made up of piston and piston rod, piston is provided with the arrow body with needle handle bottom taper depression and horn mouth tabling, and the centrage that makes arrow body is positioned on the syringe neck tube hub line, piston is installed in the top of piston rod, its external diameter is corresponding with the cavity diameter of needle cylindrical unit, and in piston rod is slidingly mounted on the cavity of needle cylindrical unit.
Because the present invention is made up of syringe, syringe needle group and piston set, the two ends of syringe are respectively needle cylindrical unit and neck tube, and Zhou Congqian constitutes the oared segrne pii, conical bore section and the cylindrical hole section that stretch forward that is connected successively backward in the neck tube; The syringe needle group is made up of hollow pinhead body and needle handle, and the bottom of needle handle central through hole constitutes the taper depression and the horn mouth that are connected successively of the relative central through hole lack of alignment of centrage, all tablings in its periphery and the syringe neck tube; Needle head body is fixedly mounted on the needle handle central through hole; Piston set is made up of piston and piston rod, and piston is provided with the arrow body with needle handle bottom taper depression and horn mouth tabling, and makes the centrage of arrow body be positioned on the syringe neck tube hub line.Not only simple in structure, cost is low, and, after injection finishes, the piston of piston set is pushed into needle cylindrical unit foremost, its upward arrow body is pushed in the taper depression of needle handle from the horn mouth of needle handle, and be combined as a whole with the syringe needle group; When retracting piston set, the syringe needle group is driven together to be drawn back to needle cylindrical unit, break away from neck tube, because the lack of alignment of the relative needle handle central through hole of centrage of the taper depression of needle handle bottom makes automatic deflection when contracting to needle cylindrical unit in the syringe needle group, when forward impelling piston set once again, syringe needle group needle head body is conflicted at the needle cylindrical unit inwall, needle head body is bent and thoroughly damages and stay in needle cylindrical unit, can stop syringe the phenomenon that environment pollutes is taken place, thereby reach purpose of the present invention.
Description of drawings
Fig. 1, for decomposition texture schematic isometric of the present invention.
Fig. 2, for decomposition texture front view of the present invention.
Fig. 3, for structural representation profile of the present invention.
Fig. 4, be the A-A profile among Fig. 3.
Fig. 5, be syringe needle group structural representation axonometric chart of the present invention.
Fig. 6, be user mode sketch map of the present invention (syringe neck tube hub line parallel in the needle cylindrical unit centrage, fill medicinal liquid prepare inject state).
Fig. 7, be user mode sketch map of the present invention (syringe neck tube hub line parallel in needle cylindrical unit centrage, injection end, piston set and syringe needle group are combined as a whole state).
Fig. 8, be B portion partial enlarged drawing among Fig. 7.
Fig. 9, for user mode sketch map of the present invention (syringe neck tube hub line parallel contracts to the intravital state of syringe in needle cylindrical unit centrage, syringe needle group are drawn back).
Figure 10, be C portion partial enlarged drawing among Fig. 9.
Figure 11, for user mode sketch map of the present invention (syringe neck tube hub line parallel is in needle cylindrical unit centrage, the automatic collapse state of syringe needle group deflection in needle cylindrical unit).
Figure 12, for user mode sketch map of the present invention (syringe neck tube hub line is positioned on the needle cylindrical unit centrage, the syringe needle group is drawn back contracts to the intravital state of syringe).
Figure 13, be user mode sketch map of the present invention (syringe neck tube hub line is positioned on the needle cylindrical unit centrage, syringe needle group at the automatic collapse state of needle cylindrical unit deflection).
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the present invention is by syringe 1, syringe needle group 2 and piston set 3 are formed, one end of syringe 1 is for constituting the needle cylindrical unit 11 of cavity 111, needle cylindrical unit 11 tail ends are provided with the edge of a wing 112 of outside stretching, extension, be provided with stop ring 113 in the needle cylindrical unit 11 week and be provided with a vertically prominent rib 114 at least, the other end of syringe 1 is the neck tube 12 that connects with needle cylindrical unit 11 cavities 111, Zhou Congqian constitutes the oared segrne pii 121 that stretches forward that is connected successively backward in the neck tube 12, conical bore section 122 and cylindrical hole section 123, the centrage of neck tube 12 is parallel to the centrage of needle cylindrical unit 11, also can make the centrage of neck tube 12 be positioned on the centrage of needle cylindrical unit 11; Syringe needle group 2 is made up of hollow pinhead body 21 and needle handle 22, and the front end of needle head body 21 forms needle point 211; As shown in Figure 5, needle handle 22 is for rubber and be elasticity, which is provided with central through hole 221, constitute the taper depression 222 and the horn mouth 223 that are connected successively of the lack of alignment of the relative central through hole 221 of centrage in the bottom of central through hole 221, its periphery constitute backward in the past be connected successively and with the neck tube 12 of syringe 1 in a tight waist section 224 of all tablings, conical section 225 and cylindrical section 226, and be provided with axial expansion groove 227 at cylindrical section 226 perisporiums; Needle head body 21 is fixedly mounted on the front end of the central through hole 221 of needle handle 22 with its rear end; Piston set 3 is made up of piston 31 and piston rod 32, and piston 31 is provided with the arrow body 33 with needle handle 22 bottom taper depressions 222 and horn mouth 223 tablings, and makes the centrage of arrow body 33 be positioned on the centrage of neck tube 12 of syringe 1; Arrow body 33 also can be located at and be embedded on the arrow body connecting support 34 on the piston 31; Arrow body connecting support 34 is a substrate, and its periphery is provided with annular lug 341, and as shown in Figure 4, its bottom has side 342, location; Have with the embedding cave 311 of arrow body connecting support 34 tablings on the piston 31 and support and allow to be installed in the through hole 312 that arrow body connecting support 34 upward arrow bodies 33 pass, its external diameter is corresponding with cavity 111 diameters of needle cylindrical unit 11, and the periphery of piston 31 is provided with and needle cylindrical unit 11 interior all stop ring 113 corresponding annular grooves 313; Piston rod 32 is radiation three fin cross sections, and piston rod 32 tail ends are provided with round butterfly operation sheet 321, and the plane of a side for ease of moving in the plane of order circle butterfly operation sheet 321; Piston 31 is installed in the top of piston rod 32, and in piston rod 32 is slidingly mounted on the cavity 111 of needle cylindrical unit 11.
During use, as shown in Figure 6, will fill medicinal liquid 4 in the needle cylindrical unit 11 and prepare injection; The piston 31 of piston set 3 is pushed ahead slowly along needle cylindrical unit 11, make medicinal liquid 4 central through hole 221 and 21 outputs of hollow pinhead body on needle handle 22 in the needle cylindrical unit 11; As Fig. 7, shown in Figure 8, after injection finishes, the piston 31 of piston set 3 is pushed into needle cylindrical unit 11 foremost, its upward arrow body 33 is pushed in the taper depression 222 of needle handle 22 from the horn mouth 223 of needle handle 22, and be combined as a whole for 2 groups with syringe needle; As Fig. 9, Figure 10, shown in Figure 12, when retracting piston set 3, syringe needle group 2 is driven together to be drawn back to needle cylindrical unit 11, break away from neck tube 12, because the lack of alignment of the central through hole 221 of the relative needle handle 22 of centrage of the taper depression 222 of needle handle 22 bottoms makes automatic deflection when contracting in the syringe needle group 2 to needle cylindrical unit 11; As Figure 11, shown in Figure 13, when forward impelling piston set 3 once again, the needle point 211 of the needle head body 21 of syringe needle group 2 is conflicted at needle cylindrical unit 11 inwalls, needle head body 21 is bent and thoroughly damages and stay in needle cylindrical unit 11.
Claims (9)
1, the automatically safety injector of damage of deflection that contracts in a kind of syringe needle, it is made up of syringe, syringe needle group and piston set, and an end of syringe is for constituting the needle cylindrical unit of cavity, and its other end is the neck tube with the perforation of needle cylindrical unit cavity; The syringe needle group is made up of hollow pinhead body and needle handle, and the front end of needle head body forms needle point, and needle handle is provided with central through hole, and is elasticity, and needle head body is fixedly mounted on the front end of needle handle central through hole with its rear end; Piston set is made up of piston and piston rod, piston is installed in the top of piston rod, its external diameter is corresponding with the cavity diameter of needle cylindrical unit, and in piston rod is slidingly mounted on the cavity of needle cylindrical unit, it is characterized in that the interior Zhou Congqian of neck tube of described syringe constitutes the oared segrne pii, conical bore section and the cylindrical hole section that stretch forward that is connected successively backward; The periphery of the needle handle of syringe needle group constitute backward in the past be connected successively and with the syringe neck tube in a tight waist section of all tablings, conical section and cylindrical section, constitute the taper depression and the horn mouth that are connected successively of the relative central through hole lack of alignment of centrage in the bottom of needle handle central through hole; The piston of piston set is provided with the arrow body with needle handle bottom taper depression and horn mouth tabling, and makes the centrage of arrow body be positioned on the syringe neck tube hub line.
2, the automatically safety injector of damage of deflection that contracts in the syringe needle according to claim 1 is characterized in that being embedded with the arrow body connecting support on the described piston, and arrow body is located on the arrow body connecting support.
3, the automatically safety injector of damage of deflection that contracts in the syringe needle according to claim 2 is characterized in that described arrow body connecting support is a substrate, and its periphery is provided with annular lug, and its bottom has the side, location; Have the embedding cave with arrow body connecting support tabling on the piston, and be provided with and support and allow to be installed in the through hole that arrow body connecting support upward arrow body passes.
4, the automatically safety injector of damage of deflection that contracts in the syringe needle according to claim 1 and 2 is characterized in that described syringe neck tube hub line parallel is in the needle cylindrical unit centrage.
5, the automatically safety injector of damage of deflection that contracts in the syringe needle according to claim 1 and 2 is characterized in that described syringe neck tube hub line is positioned on the needle cylindrical unit centrage.
6, the automatically safety injector of damage of deflection that contracts in the syringe needle according to claim 1 and 2 is characterized in that described needle cylindrical unit tail end is provided with the edge of a wing of outside stretching, extension, week is provided with stop ring in the needle cylindrical unit; The periphery of piston be provided with needle cylindrical unit in the corresponding annular groove of all stop rings.
7, the automatically safety injector of damage of deflection that contracts in the syringe needle according to claim 1 and 2 is characterized in that being provided with at least in week in the described needle cylindrical unit a vertically prominent rib.
8, the automatically safety injector of damage of deflection that contracts in the syringe needle according to claim 1 and 2 is characterized in that the piston rod of described piston set is radiation three fin cross sections, and its tail end is provided with round butterfly operation sheet.
9, the automatically safety injector of damage of deflection that contracts in the syringe needle according to claim 8, the side of round butterfly operation sheet of piston rod tail end that it is characterized in that described piston set is for ease of mobile in the plane plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96106985 CN1092526C (en) | 1996-08-06 | 1996-08-06 | Safety injuctor with syringe needle internal deflection and automatic demaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96106985 CN1092526C (en) | 1996-08-06 | 1996-08-06 | Safety injuctor with syringe needle internal deflection and automatic demaging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1172678A CN1172678A (en) | 1998-02-11 |
| CN1092526C true CN1092526C (en) | 2002-10-16 |
Family
ID=5119449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96106985 Expired - Fee Related CN1092526C (en) | 1996-08-06 | 1996-08-06 | Safety injuctor with syringe needle internal deflection and automatic demaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1092526C (en) |
-
1996
- 1996-08-06 CN CN 96106985 patent/CN1092526C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1172678A (en) | 1998-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUANG WUSHUN Free format text: FORMER OWNER: CHEN LONGXIONG Effective date: 20030214 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20030214 Address after: Taipei County of Taiwan Province Patentee after: Huang Wushun Address before: 5 floor, No. 91-3 loyalty Road, Taiwan, Taipei Patentee before: Chen Longxiong |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |