CN213640876U - Safety blood taking needle - Google Patents
Safety blood taking needle Download PDFInfo
- Publication number
- CN213640876U CN213640876U CN202022398748.5U CN202022398748U CN213640876U CN 213640876 U CN213640876 U CN 213640876U CN 202022398748 U CN202022398748 U CN 202022398748U CN 213640876 U CN213640876 U CN 213640876U
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- needle
- cylinder
- tail
- handle
- blood
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Abstract
The utility model discloses a safe type blood taking needle, including cylinder, needle cap, handle, connecting portion, connecting pipe, install the bottom of cylinder the needle cap, the shaping has a bar type groove on the circumference side of cylinder, and this bar type inslot slides and is provided with the handle, connect in the handle just is in the inside slidable mounting of cylinder has the needle tail, install the upper end of needle tail connecting portion. The utility model discloses a restoring force effect of spring promotes the backshank and shifts up, makes inside the syringe needle stretched into the cylinder, and the nurse can avoid the emergence that the needle-prick injures at the blood sampling in-process without touching the syringe needle completely, and overall structure is simple, operation convenient to use, and the security is good, has higher using value widely.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a safety blood taking needle.
Background
Venipuncture and associated venous blood collection are the most common general techniques in clinical departments, and the most commonly used blood collection needle comprises a blood collection needle tube used for puncturing skin and vein wall, a blood collection needle tube seat for fixing the blood collection needle tube therein, and a blood delivery needle tube; the inner cavity of the blood feeding needle tube is communicated with the inner cavity of the blood taking needle tube seat directly or through the inner cavity of the conveying hose; the blood feeding needle tube is covered with a rubber sleeve in a shape-adapting way and the rubber sleeve isolates the blood feeding needle tube from external fluid; after the blood sampling needle tube enters a vein, the blood delivery needle tube needs to pierce a rubber plug for sealing an opening at the top end of the tube body of the vacuum blood sampling tube, blood flows into the inner cavity of the vacuum blood sampling tube in a jet mode, the blood delivery needle tube is pulled out when the blood volume is enough, the rubber sleeve is recovered elastically, the tip end of the blood delivery needle tube is coated again to prevent the blood from flowing out, and then another vacuum blood sampling tube can be pierced continuously to continue a blood sampling process.
Obviously, the success of vein blood sampling firstly needs the success of vein puncture, the skin near the puncture point is disinfected when the vein puncture process begins, then the finger of one hand mainly tightens the skin by the thumb, the other hand holds the needle and forms a proper angle with the skin to firstly pierce the sharp tip of the blood sampling needle tube into the skin, then breaks through the vein wall, the needle hole of the tip inclined plane of the blood sampling needle tube enters the vein cavity, the vein pressure extrudes the blood into the blood sampling needle tube through the needle hole of the inclined plane, the red blood inflow which is also called the return blood is seen on the window of the blood sampling needle tube or the transparent blood sampling needle tube base or the transparent conveying hose as the basis for judging the needle hole of the inclined plane to enter the vein cavity, and the return blood mode is vein.
The safety of the existing blood taking needle is poor, and a nurse may touch the needle head in the blood taking process, so that the condition of needle stick injury is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a safety blood taking needle for solving the problems.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model provides a safe type blood taking needle, includes cylinder, needle cap, handle, connecting portion, connecting pipe, install the bottom of cylinder the needle cap, the shaping has a strip type groove on the circumference side of cylinder, and it is provided with to slide in this strip type groove the handle, connect in the handle just the inside slidable mounting of cylinder has the backshank, install the upper end of backshank the connecting portion, the connecting pipe is installed to the connecting portion, the protective cap is installed to the other end of connecting pipe, the inside shaping of backshank has the cavity, and this cavity runs through the backshank with connecting portion, the outside of backshank is provided with three deflector, the syringe needle is installed to the bottom of backshank, the lower part outside of backshank just is in the spring is installed to the inboard of.
Preferably: the needle cap is connected with the needle cylinder through a clamping groove.
Preferably: the needle tail and the handle are integrally formed, and the connecting part and the needle tail are integrally formed.
Preferably: the connecting pipe is connected with the connecting part in a plugging and unplugging manner.
Preferably: the guide plate and the needle tail are integrally formed, and the protective cap is in threaded connection with the connecting pipe.
Compared with the prior art, the beneficial effects of the utility model are as follows:
under the effect of restoring force of spring, promote the needle tail and shift up, make the syringe needle stretch into the cylinder inside, the nurse can avoid the emergence that the needle pricked and hinder at the blood sampling in-process without touching the syringe needle completely, overall structure is simple, operation convenient to use, the security is good, has higher using value widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a first schematic view of a safety blood taking needle according to the present invention;
FIG. 2 is a second schematic view of the safety blood taking needle of the present invention;
FIG. 3 is a schematic view of a first structure of a needle tail of a safety blood taking needle according to the present invention;
FIG. 4 is a second structural view of the needle tail of the safety blood taking needle according to the present invention;
fig. 5 is a top cross-sectional view of a safety blood taking needle of the present invention.
The reference numerals are explained below:
1. a needle cylinder; 2. a needle cap; 3. a handle; 4. a connecting portion; 5. a connecting pipe; 6. a protective cap; 7. needle tail; 8. a guide plate; 9. a spring; 10. a needle.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 5, a safety blood taking needle comprises a needle cylinder 1, a needle cap 2, a handle 3, a connecting portion 4 and a connecting pipe 5, wherein the needle cap 2 is installed at the bottom of the needle cylinder 1, a strip-shaped groove is formed on the circumferential side surface of the needle cylinder 1, the handle 3 is arranged in the strip-shaped groove in a sliding mode, a needle tail 7 is connected to the handle 3 and is installed in the needle cylinder 1 in a sliding mode, the connecting portion 4 is installed at the upper end of the needle tail 7, the connecting pipe 5 is installed at the connecting portion 4, a protective cap 6 is installed at the other end of the connecting pipe 5, a cavity is formed in the needle tail 7 and penetrates through the needle tail 7 and the connecting portion 4, three guide plates 8 are arranged on the outer side of the needle tail 7, a needle head 10 is installed at the.
Preferably: the needle cap 2 is connected with the needle cylinder 1 through a clamping groove; the needle tail 7 and the handle 3 are integrally formed, and the connecting part 4 and the needle tail 7 are integrally formed; the connecting pipe 5 is connected with the connecting part 4 in a plugging manner; the guide plate 8 and the needle tail 7 are integrally formed, and the protective cap 6 is in threaded connection with the connecting pipe 5.
The utility model discloses a theory of operation and application method: when the blood collection needle is used, the needle cylinder 1 is held by one hand, the handle 3 is pushed by the other hand, the needle tail 7 moves downwards and compresses the spring 9 until the needle tip part of the needle head 10 is inserted into the skin of a patient, when blood return is seen, the protective cap 6 is unscrewed and is connected with the blood collection tube, blood flows into the blood collection bottle along the blood collection tube to be collected, after collection is finished, the pushing force on the handle 3 is loosened, the needle tail 7 moves upwards along the length direction of the needle cylinder 1 under the action of the spring 9 until the needle head 10 is recovered into the needle cylinder 1, and finally the needle cap 2 is covered for sealing.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (5)
1. A safety blood taking needle is characterized in that: the needle comprises a needle cylinder (1), a needle cap (2), a handle (3), a connecting part (4) and a connecting pipe (5), wherein the needle cap (2) is installed at the bottom of the needle cylinder (1), a strip-shaped groove is formed in the circumferential side surface of the needle cylinder (1), the handle (3) is arranged in the strip-shaped groove in a sliding mode, a needle tail (7) is connected to the handle (3) and is arranged inside the needle cylinder (1) in a sliding mode, the connecting part (4) is installed at the upper end of the needle tail (7), the connecting pipe (5) is installed at the connecting part (4), a protective cap (6) is installed at the other end of the connecting pipe (5), a cavity is formed inside the needle tail (7), penetrates through the needle tail (7) and the connecting part (4), three guide plates (8) are arranged on the outer side of the needle tail (7), a needle head (10) is installed, and a spring (9) is arranged on the outer side of the lower part of the needle tail (7) and on the inner side of the needle cylinder (1).
2. A safety lancet according to claim 1, characterised in that: the needle cap (2) is connected with the needle cylinder (1) through a clamping groove.
3. A safety lancet according to claim 1, characterised in that: the needle tail (7) and the handle (3) are integrally formed, and the connecting part (4) and the needle tail (7) are integrally formed.
4. A safety lancet according to claim 1, characterised in that: the connecting pipe (5) is connected with the connecting part (4) in a plugging manner.
5. A safety lancet according to claim 1, characterised in that: the guide plate (8) and the needle tail (7) are integrally formed, and the protective cap (6) is in threaded connection with the connecting pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022398748.5U CN213640876U (en) | 2020-10-26 | 2020-10-26 | Safety blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022398748.5U CN213640876U (en) | 2020-10-26 | 2020-10-26 | Safety blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213640876U true CN213640876U (en) | 2021-07-09 |
Family
ID=76703222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022398748.5U Active CN213640876U (en) | 2020-10-26 | 2020-10-26 | Safety blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213640876U (en) |
-
2020
- 2020-10-26 CN CN202022398748.5U patent/CN213640876U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |