CN100591377C - Injection needle with safety sleeve - Google Patents
Injection needle with safety sleeve Download PDFInfo
- Publication number
- CN100591377C CN100591377C CN200510112297A CN200510112297A CN100591377C CN 100591377 C CN100591377 C CN 100591377C CN 200510112297 A CN200510112297 A CN 200510112297A CN 200510112297 A CN200510112297 A CN 200510112297A CN 100591377 C CN100591377 C CN 100591377C
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- Prior art keywords
- protection sleeve
- needle
- cylindrical shell
- sleeve
- needle tubing
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Abstract
The invention provides a inject needle with safe loop which includes needle base and needle tube linking in one unit, needle tube protect loop for protect needle tube and fixed loop and protect loop.The fixed loop is connected with the needle base through needle tube. The protect loop is linked on the outside of fixed loop and can move along the fixed loop axially and rotate radially. When protect loop moves the needle base in place, the needle tube overhangs the protect loop and is in active state. When protect loop moves the needle tube in place, the needle tube is back into the protect loop and is in protective state. The invention improves the inject needle safety greatly, and the operation of the inject needle in the invention is simple, use is easy, and it has high value and socialvalue.
Description
Technical field
The present invention relates to medical needle, relate in particular to a kind of entry needle with safety sleeve.
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 entry needle includes only needle tubing, needle stand and self-existent needle tubing protective sleeve that fuses; because the needle tubing protective sleeve 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 entry needle that loses the needle tubing protective sleeve is very unsafe; if the needle tubing protective sleeve that will make dirty is enclosed within on the entry needle again, then can pollute entry needle.Therefore, only have only the entry needle of needle tubing protective sleeve all having major defect aspect safety and the wholesomeness.
Summary of the invention
Purpose of the present invention is exactly in order to solve the problems referred to above that prior art exists, a kind of entry needle with safety sleeve to be provided.
The objective of the invention is to be achieved through the following technical solutions: a kind of entry needle with safety sleeve; comprise needle stand and needle tubing that fuses and the needle tubing protective sleeve that is used to protect needle tubing; also comprise fixed muffle and protection sleeve; described fixed muffle passes needle tubing and is connected on the needle stand; described protection sleeve is connected fixed muffle and also can moves axially and radially rotate along fixed muffle outward; when protection sleeve when the needle stand direction moves into place; it is in running order that needle tubing stretches out protection sleeve; when protection sleeve when the needle tubing direction moves into place; needle tubing takes in protection sleeve and is in guard mode; described needle tubing protective sleeve can pass in protection sleeve gos deep in the fixed muffle needle tubing is enclosed in; the connector that described protection sleeve comprises cylindrical shell and is used for fixed muffle is linked to each other with cylindrical shell; inwall in the cylindrical shell bottom is provided with the position-limit mechanism that moves on the protection sleeve, and the inwall on cylindrical shell top is provided with the position-limit mechanism that protection sleeve moves down.
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 at same sagittal plane.
Described connector is the bathtub construction part that has inner ring and outer ring, 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 protective sleeve is pressed on when going deep in the fixed muffle on this interior step; the outwards outstanding circle spacing ring that forms around the top of fixed muffle; the internal diameter of the external diameter of this spacing ring and protection sleeve cylindrical shell is suitable; gap between the position-limit mechanism of the thickness of spacing ring and the connector of protection sleeve and cylindrical shell bottom is suitable; when protection sleeve when the needle tubing direction moves into place; spacing ring is fastened in to be realized spacingly in the gap between the position-limit mechanism of the connector of this protection sleeve and simplified bottom, be provided with the notch that a plurality of each projection of allowing the protection sleeve bottom pass through around the described spacing ring.
The present invention the safety of entry needle is greatly improved, and entry needle of the present invention is simple to operate 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 entry needle of band safety sleeve of the present invention;
Fig. 2 is the STRUCTURE DECOMPOSITION sketch map of the entry needle of band safety sleeve of the present invention;
Fig. 3 is in the structural representation of user mode for the present invention;
Fig. 4 is in the structural representation of guard mode for the present invention.
The specific embodiment
Referring to Fig. 1, Fig. 2, a kind of entry needle with safety sleeve of the present invention comprises needle stand 1, needle tubing 2, needle tubing protective sleeve 3, fixed muffle 4 and protection sleeve 5.Needle stand 1 fuses with needle tubing 2; needle tubing protective sleeve 3 is used to be enclosed within needle tubing 2 outer protection needle tubings for the independent structure member; fixed muffle 4 passes needle tubing 2 and is connected on the needle stand 1; protection sleeve 5 is connected outside the fixed muffle 4 and can moves axially and radially rotate along fixed muffle 4; when protection sleeve 5 when needle stand 1 direction moves into place; it is in running order that needle tubing 2 stretches out protection sleeve; when protection sleeve 5 when needle tubing 2 directions move into place; needle tubing 2 takes in protection sleeve and is in guard mode, and needle tubing protective sleeve 3 can pass in protection sleeve 5 gos deep in the fixed muffle 4 needle tubing is enclosed in.
Continuation referring to Fig. 2, cooperate referring to Fig. 1; protection sleeve 5 among the present invention comprises simplified 51 and be used for connector 52 that fixed muffle 4 is linked to each other with cylindrical shell 51; inwall in cylindrical shell 51 bottoms is provided with the position-limit mechanism 53 that moves on the protection sleeve, and the inwall on cylindrical shell top is provided with the position-limit mechanism 54 that protection sleeve moves down.
The position-limit mechanism that moves on the protection sleeve and move down can be various versions, and present embodiment adopts 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 at same sagittal plane.Connector 52 is for having the bathtub construction part of inner ring and outer ring; 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; form a groove adaptive between inner ring and the outer ring with barrel wall; during connection connector 52 is inserted in fixed muffle from the lower end of fixed muffle 4; cylindrical shell 51 with protection sleeve 5 screws in the groove of connector 52 then; being about to fixed muffle 4 links to each other with protection sleeve 5; connector 52 forms the uniform gap of a circle with after cylindrical shell 51 is connected between the upper limb of its inner ring and the position-limit mechanism of simplified bottom 53.
Referring to Fig. 1, the fixed muffle 4 among the present invention is the reducing tubular structure referring to Fig. 2, cooperation in continuation, and its top 41 diameters are bigger; bottom 42 diameters are less; step 43 and outer step 44 in the reducing place forms, in the time of in needle tubing protective sleeve 3 gos deep into fixed muffle 4, its bottom is pressed on the interior step 43.The outwards outstanding circle spacing ring 45 that forms around the top of fixed muffle 4; the internal diameter of the external diameter of this spacing ring 45 and protection sleeve simplified 51 is suitable; gap between the position-limit mechanism 53 of the thickness of spacing ring 45 and the connector of protection sleeve 52 and cylindrical shell bottom is suitable; position-limit mechanism 53 in the present embodiment adopts projections, then corresponding the notch 451 that a plurality of each projection of allowing the protection sleeve bottom pass through is set around spacing ring 45.When protection sleeve 4 when needle tubing 2 directions move; make each projection of protection sleeve bottom aim at each notch 451; treat after projection is by notch protection sleeve 5 to be rotated to an angle, then spacing ring 45 is fastened in realize in the gap between the position-limit mechanism 53 of the connector 52 of this protection sleeve and cylindrical shell bottom spacing.At this moment form the guard mode of entry needle, needle tubing 2 is taken in the protection sleeve, and needle point does not expose, as shown in Figure 4.When needs use entry needle; protection sleeve 5 is rotated to an angle; make each projection of protection sleeve bottom aim at each notch 451; move protection sleeve 5 to needle stand 1 direction then; make projection on the protection sleeve 5 by the notch on the fixed muffle, then protection sleeve 5 is continued to move to spacing ring 45 to needle stand 1 direction and kept out by the position-limit mechanism 54 on simplified top, at this moment needle tubing 2 stretches out outside the protection sleeve; entry needle 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 (4)
1; a kind of entry needle with safety sleeve; comprise needle stand and needle tubing that fuses and the needle tubing protective sleeve that is used to protect needle tubing; fixed muffle and protection sleeve; described fixed muffle passes needle tubing and is connected on the needle stand; described protection sleeve is connected fixed muffle and also can moves axially and radially rotate along fixed muffle outward; when protection sleeve when the needle stand direction moves into place; it is in running order that needle tubing stretches out protection sleeve; when protection sleeve when the needle tubing direction moves into place; needle tubing takes in protection sleeve and is in guard mode; described needle tubing protective sleeve can pass in protection sleeve gos deep in the fixed muffle needle tubing is enclosed in; it is characterized in that: the connector that described protection sleeve comprises cylindrical shell and is used for fixed muffle is linked to each other with cylindrical shell; inwall in the cylindrical shell bottom is provided with the position-limit mechanism that moves on the protection sleeve, and the inwall on cylindrical shell top is provided with the position-limit mechanism that protection sleeve moves down.
2, the entry needle of band safety sleeve as claimed in claim 1; it is characterized in that: 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; each projection all has a lower plane, and the lower plane of each projection in the same position-limit mechanism is positioned at same sagittal plane.
3, the entry needle of band safety sleeve as claimed in claim 1, it is characterized in that: described connector is the bathtub construction part that has inner ring and outer ring, 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 is with after cylindrical shell is connected, and asking of the position-limit mechanism of the upper limb of its inner ring and cylindrical shell bottom forms the uniform gap of a circle.
4; the entry needle of band safety sleeve as claimed in claim 2; it is characterized in that: 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 protective sleeve is pressed on when going deep in the fixed muffle on this interior step; the outwards outstanding circle spacing ring that forms around the top of fixed muffle; the internal diameter of the external diameter of this spacing ring and protection sleeve cylindrical shell is suitable; gap between the position-limit mechanism of the thickness of spacing ring and the connector of protection sleeve and cylindrical shell bottom is suitable; when protection sleeve when the needle tubing direction moves into place; spacing ring is fastened in to be realized spacingly in the gap between the position-limit mechanism of the connector of this protection sleeve and cylindrical shell bottom, be provided with the notch that a plurality of each projection of allowing the protection sleeve bottom pass through around the described spacing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510112297A CN100591377C (en) | 2005-12-29 | 2005-12-29 | Injection needle with safety sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510112297A CN100591377C (en) | 2005-12-29 | 2005-12-29 | Injection needle with safety sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1990056A CN1990056A (en) | 2007-07-04 |
| CN100591377C true CN100591377C (en) | 2010-02-24 |
Family
ID=38212736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510112297A Active CN100591377C (en) | 2005-12-29 | 2005-12-29 | Injection needle with safety sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100591377C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5823997A (en) * | 1995-01-10 | 1998-10-20 | Specialized Health Products, Inc. | Medical needle safety apparatus and methods |
| CN2415772Y (en) * | 2000-04-24 | 2001-01-24 | 黄吴顺 | Safety injector with needle holder sleeve structure |
| 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 |
-
2005
- 2005-12-29 CN CN200510112297A patent/CN100591377C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5823997A (en) * | 1995-01-10 | 1998-10-20 | Specialized Health Products, Inc. | Medical needle safety apparatus and methods |
| CN2415772Y (en) * | 2000-04-24 | 2001-01-24 | 黄吴顺 | Safety injector with needle holder sleeve structure |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1990056A (en) | 2007-07-04 |
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