CN216495303U - Safety blood taking needle - Google Patents
Safety blood taking needle Download PDFInfo
- Publication number
- CN216495303U CN216495303U CN202122927683.3U CN202122927683U CN216495303U CN 216495303 U CN216495303 U CN 216495303U CN 202122927683 U CN202122927683 U CN 202122927683U CN 216495303 U CN216495303 U CN 216495303U
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- needle
- blood taking
- taking needle
- tube
- connecting pipe
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Abstract
The safety blood taking needle effectively solves the problem that the existing blood taking needle is inconvenient to use; the blood sampling needle comprises a connecting pipe, wherein one end of the connecting pipe is connected with a puncture needle tube in the vertical axial direction, the other end of the connecting pipe is connected with a blood sampling needle tube in the vertical axial direction, the upper sides of the puncture needle tube and the blood sampling needle tube are respectively detachably connected with a needle cap, the left side and the right side of the connecting pipe are respectively connected with a push block in a sliding manner, the push block is provided with a rotary groove with an opening facing forwards, the upper side of the rotary groove is communicated with the outside, and a connecting rod with the rear end fixedly connected with the needle cap and capable of rotating is arranged in the rotary groove; the utility model has the advantages of ingenious structure and convenient use, is convenient for the back-off of the blood taking needle, avoids the phenomena of rolling and losing the needle cap and influencing hospital feeling, and avoids the phenomena of puncture injury of the blood taking needle and cross infection of medical personnel.
Description
Technical Field
The utility model relates to the technical field of basic nursing, in particular to a safety blood taking needle.
Background
The blood taking needle is an instrument for collecting blood samples in the medical examination process and comprises a needle head and a needle rod, wherein the needle head is arranged at the head part of the needle rod, a protective sleeve is connected on the needle rod in a sliding way, a return spring is arranged between the protective sleeve and the needle rod, and the initial position of the protective sleeve is positioned at the head parts of the needle head and the needle rod.
At present, a common blood taking needle in a hospital is a disposable blood taking needle, a needle cap needs to be pulled out before blood taking, and the blood taking needle needs to be sleeved back for avoiding the blood taking needle from stabbing other people after the blood taking is finished. The needle cap is easy to roll off and lose after the needle cap is pulled out, the hospital feeling is affected, and in the blood taking needle looping process, medical personnel are easy to stab due to the fact that the blood taking needle cap is small, the comfort level of the medical personnel can be reduced, the medical personnel are easy to be subjected to cross infection, and the use is extremely inconvenient.
SUMMERY OF THE UTILITY MODEL
Aiming at the situation, in order to overcome the defects of the prior art, the utility model aims to provide a safety blood taking needle, which effectively solves the problem that the existing blood taking needle is inconvenient to use.
The technical scheme includes that the blood sampling needle comprises a connecting pipe, one end of the connecting pipe is connected with a puncture needle tube in the vertical axial direction, the other end of the connecting pipe is connected with a blood sampling needle tube in the vertical axial direction, needle caps are detachably connected to the upper sides of the puncture needle tube and the blood sampling needle tube respectively, the left side and the right side of the connecting pipe are connected with push blocks in a sliding mode respectively, a rotary groove with an opening facing forwards and an upper side communicated with the outside is formed in each push block, and a connecting rod which is connected with the needle caps in a fixed mode and can rotate is arranged in each rotary groove.
The utility model has the advantages of ingenious structure and convenient use, is convenient for the back-off of the blood taking needle, avoids the phenomena of rolling and losing the needle cap and influencing hospital feeling, and avoids the phenomena of puncture injury of the blood taking needle and cross infection of medical personnel.
Drawings
Fig. 1 is an isometric view of the present invention.
Figure 2 is a partially cut-away front isometric view of the present invention.
FIG. 3 is a left side elevational view, in full section, of the present invention.
Figure 4 is a partially cut-away front isometric view of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The blood sampling needle tube comprises a connecting tube 1, one end of the connecting tube 1 is connected with an upper axial puncture needle tube 2 and the other end of the connecting tube is connected with an upper axial blood sampling needle tube 3, the upper sides of the puncture needle tube 2 and the blood sampling needle tube 3 are respectively detachably connected with a needle cap 4, the left side and the right side of the connecting tube 1 are respectively connected with a pushing block 5 in a sliding manner, a rotary groove 6 with an opening facing forward and an upper side communicated with the outside is formed in the pushing block 5, and a connecting rod 7 with a rear end fixedly connected with the needle cap 4 and capable of rotating is arranged in the rotary groove 6.
In order to detach and connect the needle cap 4 and the puncture needle tube 2 or the blood sampling needle tube 3, the two needle caps 4 are respectively in interference fit with the puncture needle tube 2 and the blood sampling needle tube 3 on the corresponding sides.
In order to enable the connecting rod 7 to rotate, the pushing block 5 is provided with an avoiding groove 8 with an opening facing to the right and the left communicated with the rotary groove 6, the connecting rod 7 is rotatably connected with the rotary groove 6, and the right end of the connecting rod is provided with a shifting rod 9 extending out of the avoiding groove 8.
In order to facilitate the movement of the pushing block 5, the left side and the right side of the connecting pipe 1 are respectively provided with a baffle ring 10 positioned above the pushing block 5, and the connecting pipe 1 is sleeved with a spring 11 positioned between the pushing block 5 and the baffle ring 10.
In order to achieve better using effect, the upper end of the spring 11 is fixedly connected with the baffle ring 10 and the lower end thereof is fixedly connected with the pushing block 5.
In order to fix the puncture needle tube 2, the right end of the puncture needle tube 2 and the left side of the upper end of the connecting tube 1 are respectively provided with a fixing plate 12.
When the blood sampling needle is used, two needle caps 4 are arranged in an initial state of being respectively sleeved on a puncture needle tube 2 and a blood sampling needle tube 3, one hand holds a retaining ring 10 on the side of the puncture needle tube 2, the other hand pushes a push block 5 on the side of the puncture needle tube 2 upwards, the push block 5 drives the needle cap 4 on the push block to move upwards through a connecting rod 7, a spring 11 is compressed, when the needle cap 4 is separated from the puncture needle tube 2, the push block 5 is kept pushed, a deflector rod 9 on the push block 5 is pulled backwards, and the deflector rod 9 drives the needle cap 4 to swing forwards through the connecting rod 7;
when the needle cap 4 is positioned in front of the push block 5, the push block 5 is loosened, the push block 5 drives the connecting rod 7 and the needle cap 4 to move downwards under the action of the elastic force of the spring 11 until the push block 5 returns to the initial position, at the moment, the puncture needle tube 2 is punctured into the puncture part of a patient, and the fixing plate 12 is fixed on the skin of the patient by using articles such as adhesive tapes and the like, so that the puncture needle tube 2 is fixed;
after the puncture needle tube 2 is fixed, one hand holds the stop ring 10 on the side of the blood sampling needle tube 3, the other hand pushes the push block 5 on the corresponding side of the blood sampling needle tube 3 upwards, after the needle cap 4 is separated from the blood sampling needle tube 3, the shift lever 9 is swung and the blood sampling needle tube 3 is pricked into a blood sampling bottle, after the blood sampling is finished, the fixing of the fixing plate 12 is released, the puncture needle tube 2 is pulled out, at the moment, one hand holds the stop ring 10 on the side of the puncture needle tube 2, the other hand pushes the push block 5 on the puncture needle tube 2 upwards, and the spring 11 is compressed;
when the push block 5 moves upwards to a proper position, the push block 5 is kept to push and a shift lever 9 on the push block 5 is rotated forwards, the shift lever 9 drives the needle cap 4 to move backwards through a connecting rod 7, when the needle cap 4 is positioned right above the puncture needle tube 2, the pressure on the shift lever 9 is kept and the push block 5 is reduced, the push block 5 drives the needle cap 4 to move downwards through the connecting rod 7 under the elastic force of a spring 11 until the needle cap 4 is sleeved on the puncture needle tube 2, at the moment, the push block 5 is released, and the push block 5 drives the needle cap 4 to continue to move downwards under the elastic force of the spring 11 until the needle cap 4 is restored to the initial position;
after the needle cap 4 on the puncture needle tube 2 side is restored to the initial position, the stop ring 10 on the blood sampling needle tube 3 side is pinched by one hand, the blood sampling needle tube 3 is pulled out upwards by the other hand, the push block 5 on the corresponding side is pushed upwards, after the push block 5 moves to a proper position, the pushing force on the push block 5 is kept, the shift lever 9 is rotated, the needle cap 4 is positioned right above the blood sampling needle tube 3, the pushing force on the shift lever 9 is kept, the pushing force on the push block 5 is reduced, and the needle cap 4 moves downwards under the action of the pulling force of the push block 5 until the needle cap 4 is restored to the initial position.
The utility model has simple structure, convenient operation, novel conception and strong practicability, is provided with the spring, the pushing block capable of moving up and down and the rotatable connecting rod, is convenient for the back sleeving of the blood taking needle, avoids the phenomenon that the needle cap rolls off and is lost after the needle cap of the blood taking needle is pulled out and influences the hospital feeling, avoids the phenomenon that the blood taking needle punctures and cross infects medical personnel, and increases the comfort level of the medical personnel.
Claims (6)
1. Safety type blood taking needle, including connecting pipe (1), its characterized in that, connecting pipe (1) one end is connected with axial puncture needle tubing (2) about and its other end is connected with axial blood taking needle tubing (3), puncture needle tubing (2) and blood taking needle tubing (3) upside can be dismantled respectively and be connected with needle cap (4), the sliding connection has ejector pad (5) respectively in the connecting pipe (1) left and right sides, set up opening forward and upside and external intercommunication rotary groove (6) on ejector pad (5), be equipped with rear end and needle cap (4) fixed connection and rotatable connecting rod (7) in rotary groove (6).
2. Safety lancet according to claim 1, characterised in that the two caps (4) are interference fitted with the corresponding side needles (2, 3).
3. The safety blood taking needle according to claim 1, wherein the pushing block (5) is provided with an avoiding groove (8) with an opening facing to the right and a left side communicated with the rotary groove (6), the connecting rod (7) is rotatably connected with the rotary groove (6) and a driving lever (9) extending out of the avoiding groove (8) is arranged at the right end of the connecting rod.
4. The safety blood taking needle according to claim 1, wherein the left side and the right side of the connecting tube (1) are respectively provided with a retaining ring (10) positioned above the pushing block (5), and the connecting tube (1) is sleeved with a spring (11) positioned between the pushing block (5) and the retaining ring (10).
5. The safety blood lancet according to claim 4, characterized in that the upper end of the spring (11) is fixedly connected with the retaining ring (10) and the lower end thereof is fixedly connected with the push block (5).
6. The safety blood taking needle according to claim 1, wherein the right end of the puncture needle tube (2) and the left side of the upper end of the connecting tube (1) are respectively provided with a fixing plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122927683.3U CN216495303U (en) | 2021-11-23 | 2021-11-23 | Safety blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122927683.3U CN216495303U (en) | 2021-11-23 | 2021-11-23 | Safety blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216495303U true CN216495303U (en) | 2022-05-13 |
Family
ID=81462239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122927683.3U Active CN216495303U (en) | 2021-11-23 | 2021-11-23 | Safety blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216495303U (en) |
-
2021
- 2021-11-23 CN CN202122927683.3U patent/CN216495303U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |