CN212037539U - Safety protection cover suitable for single-wing blood taking needle - Google Patents
Safety protection cover suitable for single-wing blood taking needle Download PDFInfo
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- CN212037539U CN212037539U CN201921753474.8U CN201921753474U CN212037539U CN 212037539 U CN212037539 U CN 212037539U CN 201921753474 U CN201921753474 U CN 201921753474U CN 212037539 U CN212037539 U CN 212037539U
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- blood taking
- needle
- wing
- taking needle
- slideway
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Abstract
The utility model discloses a safety protection cover suitable for a single-wing blood taking needle, which comprises a protection cover main body for accommodating the blood taking needle and guiding the blood taking needle to slide forwards and backwards; the protective sleeve main body consists of a sleeve part and a handle part; the handle part consists of a handle fixing part and a handle moving part; the knob fixing part is fixed with the end face of at least one part of the sleeve part, and the knob movable part is connected with the knob fixing part through a plurality of mutually matched positioning pins and pin holes; a sliding cavity for guiding the blood taking needle to slide is arranged in the sleeve part; the side wall of the sleeve part is provided with a slideway for guiding the blood taking needle wing to slide back and forth. The utility model designs the angle of the slideway, the needle head can incline towards the human body when sampling blood, which is convenient for medical staff to take blood; the handle part of the utility model is designed separately, which is convenient for manufacturing and installation; the utility model discloses be provided with two spacing districts, it is fixed with the blood taking needle of retrieving under the two kinds of states to restrict the blood sampling respectively, improves the safety and the reliability of using.
Description
Technical Field
The utility model relates to a blood taking needle safety device specifically is a safety protection cover suitable for single wing blood taking needle, belongs to medical safety device technical field.
Background
In clinical work, the occurrence of needle stick injuries related to injection is random and uncontrollable, and nursing staff are high-risk groups of needle stick injuries. Social hazards from unsafe injections include pricking others with a needle after use and the social spread of infection caused by improper handling of the injection device after use. Standard prevention was proposed by the American disease control center in 1995, implemented in the United states in 1996 throughout the United states, introduced in 1999 in China and introduced in 2000 in the Hospital infection management code (trial) issued by the Ministry of health. The standard prevention view is that: all patients have infectious blood, body fluids, excretions, secretions, whether or not there is significant contamination of blood stains or contact with non-intact skin mucosa, which requires isolation. Therefore, the large number of disposable lancets is necessary to bring about a problem of safe disposal of the disposable lancets.
The safe blood taking needle used generally at present consists of a vacuum blood taking tube, a blood taking needle, a connecting tube and a needle holder. The vacuum blood collection tube is a main component and is mainly used for collecting and preserving blood samples. A certain amount of negative pressure is preset in the production process of the vacuum blood collection tube, and after the blood collection needle punctures into a blood vessel, blood automatically flows into the blood collection tube due to the action of the negative pressure in the blood collection tube. In order to ensure that the used blood taking needle does not hurt medical staff, a safety protection sleeve is also arranged. The existing safety protection sleeve is provided with a sleeve type protection sleeve, and the safety protection sleeve is difficult to be used for the needle and is easy to accidentally injure. The retractable safety protection sleeve is worn outside the blood taking needle, the blood taking needle moves towards the needle point direction through the wing piece arranged on the side of the needle seat along the slide way on the side wall of the protection sleeve when in use, and the blood taking needle is limited after being pushed to a proper position and then is subjected to blood taking operation. After the operation is finished, the blood taking needle is pulled back into the safety protection sleeve, so that the purpose of safety protection is realized. However, the safety protection sleeve has the following defects:
1. the blood taking needle comprises a wing piece, and a conduit is arranged below a needle base; when the safety protection sleeve is installed, the blood taking needle can only be put in from the front end of the safety protection sleeve and all the blood taking needles enter the safety protection sleeve along the slideway; assembly and inconvenience thereof; moreover, the front end of the slideway of the blood collection needle is required to be opened, so that the risk of the blood collection needle slipping is increased.
2. Because the safety protection sleeve has a certain thickness, when the blood taking needle is inserted into a human body, a smaller included angle is required between the blood taking needle and the human body; therefore, the conventional safety protection sleeve is inconvenient for inserting the blood sampling needle when medical staff take blood.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a safety protection cover suitable for single wing blood taking needle to solve prior art's above-mentioned technical problem.
A safety protection sleeve suitable for a single-wing blood taking needle comprises a protection sleeve main body for accommodating the blood taking needle and guiding the blood taking needle to slide forwards and backwards; the protective sleeve main body consists of a sleeve part and a handle part; the handle part consists of a handle fixing part and a handle moving part; the knob fixing part is fixed with the end face of at least one part of the sleeve part, and the knob movable part is connected with the knob fixing part through a plurality of mutually matched positioning pins and pin holes; a sliding cavity for guiding the blood taking needle to slide is arranged in the sleeve part; the side wall of the sleeve part is provided with a slideway for guiding the blood taking needle wing to slide back and forth.
The front part of the slideway is provided with a first limit convex part for limiting the backward movement of the wing piece, the first limit convex part and the front side wall of the slideway form a first limit area, and the width of the first limit area is the width of the wing piece at the slideway; the rear end of the slideway is provided with a second limiting convex part for limiting the wing panel to move forwards; a second limiting area is formed between the second limiting convex part and the positioning pin, and the width of the second limiting area is the width of the wing piece at the slide way.
The first limiting area at the front part of the slideway is a downward inclined section; the needle point of the needle is inclined downwards when the blood taking needle is pushed out, so that the operation of medical staff is convenient. The second limiting area at the rear part of the slideway is provided with a downward inclined section, so that when the wing is fixed at the second limiting area, the needle point is inclined downwards and clings to the sliding cavity; prevent injury caused by human body entering the sleeve part by mistake.
The locating pin is used for limiting the wing piece and preventing the needle base and the needle point from sliding out of the rear end of the protective sleeve main body.
The locating pins are arranged into two groups, and the needle seat or the catheter of the blood taking needle moves between the locating pins and the needle seat or the catheter.
The slide is a curve slide.
The side wall of the sleeve part is provided with an observation window so as to observe the blood return condition conveniently.
The cross section of the cavity is round, oval or square; preferably circular.
At least one part of gap is arranged between the kneading handle movable part and the kneading handle fixing part and is a part of the slideway; and is in smooth engagement with the slide portion on the side wall of the sleeve portion. In this way, the tab can be restrained by the rigid handle-securing portion, preventing the tab from sliding out of the restraining area due to the flexibility of the sleeve.
The surface of the handle part is partially or totally provided with textures so as to increase the surface friction force and the strength of the handle.
The front of the utility model refers to the direction of the needle point; the upper part refers to the side far away from the human body when blood is collected, and the lower part refers to the side close to the human body.
The utility model discloses following technological effect has:
1. the utility model designs the angle of the slideway, the needle head can incline towards the human body when sampling blood, which is convenient for medical staff to take blood;
2. the handle part of the utility model is designed separately, which is convenient for manufacturing and installation;
3. the utility model takes a part of the handle part as a part of the slideway, and can prevent the blood taking needle from sliding out due to the deformation of the sleeve part by utilizing the strength of the handle part;
4. the utility model discloses be provided with two spacing districts, it is fixed with the blood taking needle of retrieving under the two kinds of states to restrict the blood sampling respectively, improves the safety and the reliability of using.
Drawings
FIG. 1 is a schematic structural view of the assembled state of the present invention;
fig. 2 is a schematic structural diagram of a first usage state of the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second usage state of the embodiment of the present invention;
FIG. 4 is a schematic structural view showing the opened state of the movable portion of the pinch handle of the present invention;
in the figure, 10, the sleeve part; 11. a slideway; 12. a first limiting region; 13. a second confinement region; 14. an observation window; 20. a fixed part; 21. a knob fixing part; 22. a movable portion of the knob; 23. and a positioning pin.
Detailed Description
The structural features of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
A safety shield for a single wing lancet, as shown in fig. 1 to 4, comprises a shield body for accommodating a lancet and guiding the lancet to slide back and forth; the main body of the protective sleeve consists of a sleeve part 10 and a knob part 20; the handle part 20 consists of a handle fixing part 21 and a handle moving part 22; the knob fixing part 21 is fixed with the end face of at least one part of the sleeve part 10, and the knob movable part 22 is connected with the knob fixing part 21 through a plurality of mutually matched positioning pins 23 and pin holes; the sleeve part 10 is internally provided with a sliding cavity for guiding the blood taking needle to slide; the side wall of the sleeve part is provided with a slideway 11 for guiding the blood taking needle wing to slide back and forth.
The front part of the slideway 11 is provided with a first limit convex part for limiting the backward movement of the wing piece, the first limit convex part and the front side wall of the slideway form a first limit area 12, and the width of the first limit area 12 is the width of the wing piece at the slideway; the rear end of the slideway 11 is provided with a second limiting convex part for limiting the wing panel to move forwards; a second limiting area 13 is formed between the second limiting convex part and the positioning pin, and the width of the second limiting area 13 is the width of the wing piece at the slide way.
The first limit area 12 of the slideway 11 is a downward inclined section; the needle point of the needle is inclined downwards when the blood taking needle is pushed out, so that the operation of medical staff is convenient. The second limiting area 13 at the rear end of the slideway 11 is a downward inclined section, so that when the wing is fixed in the second limiting area 13, the needle point is inclined downward and clings to the sliding cavity; prevent injury caused by human body entering the sleeve part by mistake.
The locating pin 23 forms the limit to the wing piece, and prevents the needle base and the needle tip from sliding out of the rear end of the protective sleeve main body.
The positioning pins 23 are provided in two sets, between which the needle holder or the catheter of the lancet moves.
The slideway 11 is a curved slideway.
The side wall of the sleeve part 10 is provided with an observation window so as to observe the blood return condition.
The section of the sliding cavity is circular, oval or square; preferably circular.
At least one part of gap is arranged between the handle movable part 22 and the handle fixing part 21 and is a part of the slideway; and is in partial smooth engagement with the slide 11 on the side wall of the sleeve portion 10. In this way, the tab can be restrained by the rigid handle-securing portion, preventing the tab from sliding out of the restraining area due to the flexibility of the sleeve.
The grip portion 20 is partially or entirely textured on its surface to increase surface friction and grip strength.
As shown in fig. 2, when the lancet is pushed to the first limit area 12, the wing is limited in the first limit area 12, and at this time, the needle tip of the lancet is inclined downward, and the medical care user starts to take blood.
As shown in figure 3, when the blood taking needle is in an initial state or a used and retracted state, the wing panel is moved into the second limiting area 13 to be limited, so that the blood taking needle is prevented from sliding out, and at the moment, the needle tip of the blood taking needle is downwards inclined under the limitation of the slideway of the second limiting area 13 and is tightly attached to the inner wall of the sleeve part 10.
Claims (10)
1. The utility model provides a safety protection cover suitable for single wing blood taking needle which characterized in that: comprises a protecting sleeve main body which contains a blood taking needle and guides the blood taking needle to slide back and forth; the protective sleeve main body consists of a sleeve part and a handle part; the handle part consists of a handle fixing part and a handle moving part; the knob fixing part is fixed with the end face of at least one part of the sleeve part, and the knob movable part is connected with the knob fixing part through a plurality of mutually matched positioning pins and pin holes; a sliding cavity for guiding the blood taking needle to slide is arranged in the sleeve part; the side wall of the sleeve part is provided with a slideway for guiding the blood taking needle wing to slide back and forth.
2. A safety shield for a single wing lancet, in accordance with claim 1, wherein: the front part of the slideway is provided with a first limit convex part for limiting the backward movement of the wing piece, the first limit convex part and the front side wall of the slideway form a first limit area, and the width of the first limit area is the width of the wing piece at the slideway; the rear end of the slideway is provided with a second limiting convex part for limiting the wing panel to move forwards; a second limiting area is formed between the second limiting convex part and the positioning pin, and the width of the second limiting area is the width of the wing piece at the slide way.
3. A safety shield for a single wing lancet, in accordance with claim 2, wherein: the front part of the slideway is provided with a downward inclined section; the needle point of the needle is downwards inclined when the blood taking needle is pushed out; the rear end of the slideway is provided with a downward inclined section, so that when the wing piece is fixed at the second limit area, the needle point is inclined downwards and clings to the sliding cavity.
4. A safety shield for a single wing lancet, in accordance with claim 1, wherein: the locating pin is used for limiting the wing piece and preventing the needle base and the needle point from sliding out of the rear end of the protective sleeve main body.
5. A safety shield for a single wing lancet, in accordance with claim 1, wherein: the locating pins are arranged into two groups, and the needle seat or the catheter of the blood taking needle moves between the locating pins and the needle seat or the catheter.
6. A safety shield for a single wing lancet, in accordance with claim 1, wherein: the slide is a curve slide.
7. A safety shield for a single wing lancet, in accordance with claim 1, wherein: the side wall of the sleeve part is provided with an observation window so as to observe the blood return condition conveniently.
8. A safety shield for a single wing lancet, in accordance with claim 1, wherein: the cross section of the sliding cavity is one of a circle, an ellipse or a square.
9. A safety shield for a single wing lancet, in accordance with claim 1, wherein: at least one part of gap is arranged between the kneading handle movable part and the kneading handle fixing part and is a part of the slideway; and is in smooth engagement with the slide portion on the side wall of the sleeve portion.
10. A safety shield for a single wing lancet, in accordance with claim 1, wherein: the surface of the handle part is partially or completely provided with textures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921753474.8U CN212037539U (en) | 2019-10-18 | 2019-10-18 | Safety protection cover suitable for single-wing blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921753474.8U CN212037539U (en) | 2019-10-18 | 2019-10-18 | Safety protection cover suitable for single-wing blood taking needle |
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| Publication Number | Publication Date |
|---|---|
| CN212037539U true CN212037539U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921753474.8U Active CN212037539U (en) | 2019-10-18 | 2019-10-18 | Safety protection cover suitable for single-wing blood taking needle |
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| CN (1) | CN212037539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680346A (en) * | 2019-10-18 | 2020-01-14 | 上海宝舜医疗器械有限公司 | Safety protection cover suitable for single-wing blood taking needle |
-
2019
- 2019-10-18 CN CN201921753474.8U patent/CN212037539U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680346A (en) * | 2019-10-18 | 2020-01-14 | 上海宝舜医疗器械有限公司 | Safety protection cover suitable for single-wing blood taking needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221008 Address after: 330000 No.64 Wuqiao village, Wuqiao village committee, changshanyan Township, Jinxian County, Nanchang City, Jiangxi Province Patentee after: Zou Hankun Address before: 201906 No. 18 Guijing Road, Fengjing Town, Jinshan District, Shanghai Patentee before: SHANGHAI BAOSHUN MEDICAL APPARATUS Co.,Ltd. |
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| TR01 | Transfer of patent right |