CN2636879Y - Safety protector for hypodermic syringe needle - Google Patents
Safety protector for hypodermic syringe needle Download PDFInfo
- Publication number
- CN2636879Y CN2636879Y CN 200320126734 CN200320126734U CN2636879Y CN 2636879 Y CN2636879 Y CN 2636879Y CN 200320126734 CN200320126734 CN 200320126734 CN 200320126734 U CN200320126734 U CN 200320126734U CN 2636879 Y CN2636879 Y CN 2636879Y
- Authority
- CN
- China
- Prior art keywords
- sheath
- guide groove
- syringe needle
- needle head
- parent tube
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A safety protective device of subcutaneous injection needle head pertains to a medical device. The utility model includes an injection cylinder body, a sheath base pipe, a needle head base and a sheath, the needle head base is inserted on a sheath pipe, the sheath base pipe is inserted on the injection cylinder body, and the needle head base is provided with a needle head. A cylindrical convex block is arranged on the cylinder body of the sheath pipe, the round inner wall of the cylinder body of the sheath is provided with a Z-shaped guide groove, and the cylindrical convex block which is arranged on the cylinder body of the sheath base pipe is arranged in the Z-shaped guide groove of the sheath. The needle head is positioned in the embrace of the sheath after the completion of the subcutaneous injection. At the same time, the forward and backward movements of the sheath are always conducted at the back part of the needle head, the needle head is not contacted with the medical staff, thus, the medical staff can not be stabbed by the needle head, so as to avoid the virus infection and ensure the safety of the use.
Description
Technical field
The utility model relates to a kind of safety guard of hypodermic needle, belong to a kind of medical apparatus and instruments.
Background technology
When hospital carried out subcutaneous injection to patient or ill people, what mostly adopt was that conventional syringe (as shown in Figure 5) carries out.This syringe is made of injection cylinder 10, syringe needle 20 and sheath 30.When implementing injection, medical personnel extract sheath 30 from injection cylinder 10, expose syringe needle 20 and implement.After the blood drawing sampling finishes, stab other people for preventing syringe needle, in order to avoid cause viral infection, all need return sheath 30 again and be enclosed within on the injection cylinder 10.Because the aperture of sheath 30 is less, the relative position of operation is in the place ahead that is positioned at syringe needle 20, and is careless slightly in the process of being inserted in, and might be stabbed by the tip of syringe needle 20, causes viral infection, and this is absolutely unsafe.
Summary of the invention
This utility model purpose is to provide a kind of safety guard of hypodermic needle, overcomes above-mentioned defective, and the operating position of sheath is changed into the rear positions of syringe needle by the tip of syringe needle, guarantees medical personnel's safety.
A kind of safety guard of hypodermic needle, it includes injection cylinder 5, syringe needle pedestal 4 sheath parent tubes 3 and sheath 2, and syringe needle pedestal 4 is inserted on the sheath parent tube 3, and sheath parent tube 3 is inserted on the injection cylinder 5, and sheath 2 is enclosed within on the sheath parent tube 3.It is characterized in that
Be provided with a syringe needle 41 in the cylindrical shell of syringe needle pedestal 4.
The front end cylindrical shell of sheath parent tube 3 is provided with the projection 43 of column type.
After the enforcement subcutaneous injection finished, syringe needle 41 was within the protection of sheath 2.Simultaneously, the forward and backward operation of sheath 2 is to carry out at the rear portion of syringe needle always, and syringe needle and medical personnel do not come in contact, and medical personnel can not be wounded by stabbing, and avoids the infection of virus, guarantees the safety of using.
Description of drawings
Fig. 1 is an overall structure sketch map of the present utility model.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the structure of sheath and the generalized section of I-I and II-II.
Fig. 4 is the structural representation of sheath parent tube.
Fig. 5 is the syringe of prior art.
The embodiment explanation
A kind of safety guard of hypodermic needle, it includes injection cylinder 5, syringe needle pedestal 4, sheath parent tube 3 and sheath 2, and syringe needle pedestal 4 is inserted on the sheath parent tube 3, and sheath parent tube 3 is inserted on the injection cylinder 5, and sheath 2 is enclosed within on the sheath parent tube 3.It is characterized in that
Be provided with a syringe needle 41 in the cylindrical shell of syringe needle pedestal 4.The front end cylindrical shell of sheath parent tube 3 is provided with the projection 43 of column type.
The column type projection 43 of sheath parent tube 3 is arranged on the guide groove 22 interior (guide groove 22 that is sheath 2 is to be buckled on the projection 43 of sheath parent tube 3) of the zigzag of sheath 2, can make guide groove 22 carry out forward and backward slip along projection 43.The internal diameter of guide groove 22 should be greater than the external diameter of column type projection 43, and the folding place of turning should be rounding off, can slide freely along projection 43 to guarantee guide groove 22.
During product export, syringe needle 41 is that the back guide groove 23 of sheath 2 is on the projection 43 of sheath parent tube 3 in sheath 2 (being that sheath 2 covers syringe needle 41).When implementing subcutaneous injection, at first take off the tube medicated cap 1 of sheath 2, the back guide groove 23 that rotation sheath 2 will be positioned at sheath 2 shifts out projection 43, the straightway guide groove 22 that makes sheath 2 slides backward along the projection 43 of sheath parent tube 3, make it enter into front guide slot 24, rotate in the front guide slot 24 back stop.At this moment, syringe needle 41 all exposes, and can implement injection.
After the enforcement subcutaneous injection finished, backward rotation sheath 2 made front guide slot 24 break away from projections 43 and turns back in the straightway guide groove 22, sheath 2 along the projection 43 of sheath parent tube 3 to front slide, to make projection 43 enter back guide groove 23 again, rotate to enter in the guide groove 23 of back after, stop.At this moment, syringe needle 41 is covered interior by sheath 2 again, and tube medicated cap 1 covers on sheath 2, finishes the overall process of sheath 2.
In forward and backward the sliding of sheath 2, sheath is to carry out at the rear portion of syringe needle 41 always, and the tip and the medical personnel of syringe needle 41 do not come in contact, and medical personnel can not be wounded by stabbing, and avoids the infection of virus, guarantees the safety of implementing.Because this utility model in the structure that does not change original injection cylinder and syringe needle, can directly be fixed on the different subcutaneous injection cylindrical shells, it is very convenient to operate, and it has applied value widely.
Claims (1)
1, a kind of safety guard of hypodermic needle; it includes injection cylinder (5), syringe needle pedestal (4), sheath parent tube (3) and sheath (2); syringe needle pedestal (4) is inserted on the sheath parent tube (3); sheath parent tube (3) is inserted on the injection cylinder (5); sheath (2) is enclosed within on the sheath parent tube (3), it is characterized in that
Be provided with a syringe needle (41) in the cylindrical shell of syringe needle pedestal (4), sheath parent tube (4) front end cylindrical shell is provided with the projection (43) of column type;
Protecting pipe (2) is a hollow cylinder, front end at cylindrical shell has through hole (21), front end has a medicated cap) 1), the rear portion of sheath (2) is provided with arc locating piece (25), be provided with the guide groove (22) of zigzag at the cylindrical shell garden of sheath (2) inwall, its forward and backward two ends are arc-shaped slot, are rounding off at the folding place of turning; This guide groove (22) middle part is that straightway is straight vertically, smooth, the preceding arc-shaped slot of guide groove (22) is front guide slot (24), the back arc-shaped slot of guide groove (22) is a back guide groove (23), and the column type projection (43) on the sheath parent tube (3) is in the guide groove 22 of the zigzag of sheath (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320126734 CN2636879Y (en) | 2003-12-09 | 2003-12-09 | Safety protector for hypodermic syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320126734 CN2636879Y (en) | 2003-12-09 | 2003-12-09 | Safety protector for hypodermic syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2636879Y true CN2636879Y (en) | 2004-09-01 |
Family
ID=34305369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320126734 Expired - Fee Related CN2636879Y (en) | 2003-12-09 | 2003-12-09 | Safety protector for hypodermic syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2636879Y (en) |
-
2003
- 2003-12-09 CN CN 200320126734 patent/CN2636879Y/en not_active Expired - Fee Related
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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: WANG XIANZONG Free format text: FORMER OWNER: YUANBAO MEDICAL APPLIANCES CO., LTD., ANFU COUNTY Effective date: 20061110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061110 Address after: 100009 No. 32 Hutong Hutong, Dongcheng District, Beijing Patentee after: Wang Xianzong Address before: 343200 Jiangxi province Anfu County Industrial Park Preparatory Office Patentee before: Yuanbao Medical Equipment Co., Ltd. |
|
| 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 |