CN101036815B - Injector with a safe re-covering device - Google Patents
Injector with a safe re-covering device Download PDFInfo
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- CN101036815B CN101036815B CN2006100248356A CN200610024835A CN101036815B CN 101036815 B CN101036815 B CN 101036815B CN 2006100248356 A CN2006100248356 A CN 2006100248356A CN 200610024835 A CN200610024835 A CN 200610024835A CN 101036815 B CN101036815 B CN 101036815B
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- cylindrical shell
- protection sleeve
- fixed muffle
- needle tubing
- safe
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Abstract
The invention discloses an injector having a safe returning set device, including an instrument bed, a neilsbed, a needle tube, a needle tube protective cover for protecting the needle tube, and a safe returning set device, wherein the safe returning set device includes a fixed sleeve fixedly connected on the neilsbed for passing through the needle tube, and a protective sleeve moving along the fixed sleeve in the axial movement and the radial movement covered on the fixed sleeve, a tunnel body, provided with a limiting mechanism moving upwards relative to the fixed sleeve on the inner wall of the lower of the tunnel body, and a limiting mechanism moving downwards relative to the fixed sleeve on the inner wall of the upper of the tunnel body, and a connecting fitting, which is an annular structural member having an inner and outer race and fixed at the lower part of the tunnel body through the annular. The fixed sleeve is a converging tube type structure. The invention adopts the above technical solving project, which makes the security of the injector advance greatly, moreover the injector of the invention has simple operation, convenient use, excellent use value and social value.
Description
Technical field
The present invention relates to injector for medical purpose, relate in particular to a kind of syringe with safe re-covering device.
Background technology
Since using disposable medical equipment, a large amount of depleted apparatuses bring environmental pollution problems, and the band pin apparatus after using is often stabbed medical personnel, cause the patient on one's body virus or antibacterial along with the apparatus after using infects to medical personnel, thereby cause medical personnel to catch an illness even dead.Often there is hearsay these incident various countries.Owing to the sensitivity of acquired immune deficiency syndrome (AIDS), hepatitis and other serious hematologic disease, the problem of accidental needle sticks comes into one's own day by day at present.This shows that the syringe needle of band pin apparatus is stabbed the medical worker and had very big danger.
General syringe includes only syringe, needle stand, needle tubing and self-existent needle tubing protection overcoat that fuses; because needle tubing protection overcoat is self-existent; randomness in the use is very big; the medical worker tends to arbitrarily leave about in use; even get and disappear without a trace, influence work, and the syringe that loses needle tubing protection overcoat is very unsafe; if the needle tubing that will make dirty protection overcoat is enclosed within on the syringe again, then can pollute syringe.Therefore, only have only the syringe of needle tubing protection overcoat all having major defect aspect safety and the wholesomeness.
Summary of the invention
Purpose of the present invention is exactly in order to overcome the defective of prior art, a kind of syringe with safety sleeve to be provided, and it can make the pollution problem of syringe be resolved.
The objective of the invention is to be achieved through the following technical solutions: a kind of syringe with safe re-covering device, comprise syringe, needle stand, needle tubing and the needle tubing protection overcoat and the safe re-covering device that are used to protect needle tubing, this safe re-covering device comprises and passes that needle tubing is fixedly connected on that fixed muffle and on the needle stand is nested with outside this fixed muffle and can move axially and the protection sleeve of rotation radially along this fixed muffle, described protection sleeve comprises: a cylindrical shell, inwall in the cylindrical shell bottom is provided with the position-limit mechanism when moving on the relative fixed sleeve, the position-limit mechanism the when inwall on cylindrical shell top is provided with the relative fixed sleeve and moves down; And a connection piece, it is the lower end that has the ring groove shape structural member of inner ring and outer ring and be fixed on cylindrical shell by annular groove, the external diameter of its inner ring and the internal diameter of cylindrical shell are suitable, the internal diameter of inner ring and the external diameter of fixed muffle are suitable, the internal diameter of its outer ring and the external diameter of cylindrical shell are suitable, connector forms the uniform gap of a circle with after cylindrical shell is connected between the position-limit mechanism of the upper limb of its inner ring and cylindrical shell bottom; Described fixed muffle is the reducing tubular structure; its upper diameter is bigger; lower diameter is less; the reducing place forms inside and outside step; described needle tubing protection overcoat is pressed on this interior step when inserting in the fixed muffle; the outwards outstanding circle spacing ring that forms around the top of this fixed muffle; the external diameter of this spacing ring and the cylinder internal diameter of protection sleeve are suitable slidably; when protection sleeve when the needle tubing direction moves into place, spacing ring be fastened in realize in the gap between the position-limit mechanism of the connector of this protection sleeve and cylindrical shell bottom spacing.
The syringe of above-mentioned band safe re-covering device; wherein; the position-limit mechanism that moves and move down on the described protection sleeve is a plurality of projections that are distributed in cylinder inboard wall, and each projection all has a lower plane, and the lower plane of each projection in the same position-limit mechanism is positioned on the same sagittal plane.
The syringe of above-mentioned band safe re-covering device wherein, is provided with the notch that a plurality of each projection of allowing the protection sleeve bottom pass through around the spacing ring at described fixed muffle top.
The present invention the safety of syringe is greatly improved, and injector operations of the present invention is simple owing to adopted above-mentioned technical solution, and is easy to use, has use value and social value.
Description of drawings
Fig. 1 is the overall structure sketch map of the syringe of band safe re-covering device of the present invention;
Fig. 2 is the STRUCTURE DECOMPOSITION sketch map of the syringe of band safe re-covering device of the present invention;
Fig. 3 is in the structural representation of user mode for the syringe of band safe re-covering device of the present invention;
Fig. 4 is in the structural representation of guard mode for the syringe of band safe re-covering device of the present invention.
The specific embodiment
Referring to Fig. 1, Fig. 2, a kind of entry needle with safe re-covering device of the present invention comprises syringe 1, needle stand 2, needle tubing 3, needle tubing protection overcoat 4, fixed muffle 5 and protection sleeve 6.Needle stand 2 fuses with needle tubing 3; needle tubing protection overcoat 4 is used to be enclosed within needle tubing 3 outer protection needle tubings for the independent structure member; fixed muffle 5 passes needle tubing 3 and is connected on the needle stand 2; protection sleeve 6 is connected outside the fixed muffle 5 and can moves axially and radially rotate along fixed muffle 5; when protection sleeve 6 when needle stand 2 directions move into place; it is in running order that needle tubing 3 stretches out protection sleeve 6; when protection sleeve 6 when needle tubing 3 directions move into place; needle tubing 3 takes in protection sleeve 6 and is in guard mode, and needle tubing protection overcoat 4 can pass in protection sleeve 6 gos deep in the fixed muffle 5 needle tubing 3 is enclosed in.
Continuation referring to Fig. 2, cooperate referring to Fig. 1; the connector 62 that protection sleeve 6 among the present invention comprises cylindrical shell 61 and is used for fixed muffle 5 is linked to each other with cylindrical shell 61; inwall in cylindrical shell 61 bottoms is provided with the position-limit mechanism 63 that moves on the relative fixed sleeve 5, and the inwall on cylindrical shell 61 tops is provided with the position-limit mechanism 64 that relative fixed sleeve 5 moves down.The position-limit mechanism that moves and move down on the protection sleeve 6 can be various versions, and present embodiment adopts a plurality of projections that are distributed in cylindrical shell 61 inwalls, and each projection all has a lower plane, and the lower plane of each projection in the same position-limit mechanism is positioned on the same sagittal plane.Connector 62 is the lower end that has the ring groove shape structural member of inner ring and outer ring and be fixed on cylindrical shell 61 by annular groove; the internal diameter of the external diameter of its inner ring and cylindrical shell 61 is suitable; the external diameter of the internal diameter of inner ring and fixed muffle 5 is suitable; the external diameter of the internal diameter of its outer ring and cylindrical shell 61 is suitable; form between inner ring and the outer ring one with the adaptive groove of cylindrical shell 61 walls; during connection connector 62 is inserted in fixed muffle 6 from the lower end of fixed muffle 5; cylindrical shell 61 with protection sleeve 6 screws in the groove of connector 62 then; being about to fixed muffle 5 links to each other with protection sleeve 6; connector 62 forms the uniform gap of a circle with after cylindrical shell 61 is connected between the position-limit mechanism 63 of the upper limb of its inner ring and cylindrical shell 61 bottoms.
Referring to Fig. 1, the fixed muffle 5 among the present invention is the reducing tubular structure referring to Fig. 2, cooperation in continuation, and its top 51 diameters are bigger; bottom 52 diameters are less; step 53 and outer step 54 in the reducing place forms, when needle tubing protection overcoat 4 inserted in the fixed muffle 5, its bottom was pressed on the interior step 53.The outwards outstanding circle spacing ring 55 that forms around the top of fixed muffle 5; the internal diameter of the external diameter of this spacing ring 55 and protection sleeve 6 cylindrical shells 61 is suitable slidably; position-limit mechanism 63 in the present embodiment adopts projections, then corresponding the notch 561 that a plurality of each projection of allowing protection sleeve 6 bottoms pass through is set around spacing ring 55.When protection sleeve 5 when needle tubing 3 directions move; make each projection of protection sleeve 6 bottoms aim at each notch 561; treat after projection is by notch 561 protection sleeve 6 to be rotated to an angle, then spacing ring 55 is fastened in realize in the gap between the position-limit mechanism 63 of the connector 62 of this protection sleeve 6 and cylindrical shell 61 bottoms spacing.At this moment form the guard mode of syringe, needle tubing 3 is taken in the protection sleeve 6, and needle point does not expose, as shown in Figure 4.When needs use syringe; protection sleeve 6 is rotated to an angle; make each projection of protection sleeve 6 bottoms aim at each notch 561; move protection sleeve 6 to needle stand 2 directions then; make projection on the protection sleeve 6 by the notch 561 on the fixed muffle 5, then protection sleeve 6 is continued to move to spacing ring 55 to needle stand 2 directions and kept out by the position-limit mechanism 64 on cylindrical shell 61 tops, at this moment needle tubing 3 stretches out outside the protection sleeve 6; syringe is in running order, as shown in Figure 3.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or variation, therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (2)
1. syringe with safe re-covering device; comprise syringe, needle stand, needle tubing and be used to protect the needle tubing of needle tubing to protect an overcoat and a safe re-covering device; this safe re-covering device comprises and passes that needle tubing is fixedly connected on that fixed muffle and on the needle stand is nested with outside this fixed muffle and can move axially and the protection sleeve of rotation radially along this fixed muffle; it is characterized in that
Described protection sleeve comprises:
One cylindrical shell, the inwall in the cylindrical shell bottom is provided with the position-limit mechanism when moving on the relative fixed sleeve, the position-limit mechanism the when inwall on cylindrical shell top is provided with the relative fixed sleeve and moves down; And
A connection piece, it is the lower end that has the ring groove shape structural member of inner ring and outer ring and be fixed on cylindrical shell by annular groove, the external diameter of its inner ring and the internal diameter of cylindrical shell are suitable, the internal diameter of inner ring and the external diameter of fixed muffle are suitable, the internal diameter of its outer ring and the external diameter of cylindrical shell are suitable, connector forms the uniform gap of a circle with after cylindrical shell is connected between the position-limit mechanism of the upper limb of its inner ring and cylindrical shell bottom;
Described fixed muffle is the reducing tubular structure, its upper diameter is bigger, lower diameter is less, the reducing place forms inside and outside step, described needle tubing protection overcoat is pressed on this interior step when inserting in the fixed muffle, the outwards outstanding circle spacing ring that forms around the top of this fixed muffle, the external diameter of this spacing ring and the cylinder internal diameter of protection sleeve are suitable slidably, when protection sleeve when the needle tubing direction moves into place, spacing ring be fastened in realize in the gap between the position-limit mechanism of the connector of this protection sleeve and cylindrical shell bottom spacing;
Be provided with the notch that a plurality of each projection of allowing the protection sleeve bottom pass through around the spacing ring at fixed muffle top.
2. the syringe of band safe re-covering device according to claim 1; it is characterized in that; the inwall that described each projection is distributed in cylindrical shell is the position-limit mechanism that moves and move down on the protection sleeve; each projection all has a lower plane, and the lower plane of each projection in the same position-limit mechanism is positioned on the same sagittal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100248356A CN101036815B (en) | 2006-03-17 | 2006-03-17 | Injector with a safe re-covering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100248356A CN101036815B (en) | 2006-03-17 | 2006-03-17 | Injector with a safe re-covering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101036815A CN101036815A (en) | 2007-09-19 |
| CN101036815B true CN101036815B (en) | 2011-01-12 |
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ID=38888123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100248356A Active CN101036815B (en) | 2006-03-17 | 2006-03-17 | Injector with a safe re-covering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101036815B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014048298A1 (en) * | 2012-09-28 | 2014-04-03 | Shanghai Sol-Millennium Medical Products Co., Ltd. | Sliding sleeve-type needle protection device and safety syringe |
| CN106668890B (en) * | 2017-03-17 | 2023-04-28 | 南京林业大学 | Movable soil steam sterilizer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1448129A (en) * | 1972-12-18 | 1976-09-02 | Sge Research Pty Ld | Syringes |
| CN1448191A (en) * | 2002-03-29 | 2003-10-15 | 上海康德莱企业发展集团有限公司 | Safety medical needle device |
| CN2719316Y (en) * | 2004-08-25 | 2005-08-24 | 上海康德莱企业发展集团有限公司 | Needle tube safety returning device after using injection needle |
| EP1568392A1 (en) * | 2004-02-26 | 2005-08-31 | Nipro Corporation | Safety indwelling needle |
-
2006
- 2006-03-17 CN CN2006100248356A patent/CN101036815B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1448129A (en) * | 1972-12-18 | 1976-09-02 | Sge Research Pty Ld | Syringes |
| CN1448191A (en) * | 2002-03-29 | 2003-10-15 | 上海康德莱企业发展集团有限公司 | Safety medical needle device |
| EP1568392A1 (en) * | 2004-02-26 | 2005-08-31 | Nipro Corporation | Safety indwelling needle |
| CN2719316Y (en) * | 2004-08-25 | 2005-08-24 | 上海康德莱企业发展集团有限公司 | Needle tube safety returning device after using injection needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101036815A (en) | 2007-09-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI KINDLY ENTERPRISE DEVELOPMENT GROUP CO., Free format text: FORMER NAME: SHANGHAI KANGDELAI ENTERPRISE DEVELOPMENT GROUP CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201803, Shanghai, Jiading District high tide Road, No. 1, building 658, 2 Patentee after: Shanghai Kindly Enterprise Development Group Co., Ltd. Address before: 201803 Shanghai city Jiading District Huajiang Road 668 Lane 18 Patentee before: Shanghai Kangdelai Enterprise Development Group Co., Ltd. |