CN214284920U - Puncture-proof blood taking needle - Google Patents
Puncture-proof blood taking needle Download PDFInfo
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- CN214284920U CN214284920U CN202023162390.2U CN202023162390U CN214284920U CN 214284920 U CN214284920 U CN 214284920U CN 202023162390 U CN202023162390 U CN 202023162390U CN 214284920 U CN214284920 U CN 214284920U
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- needle
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- block
- spout
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Abstract
The utility model discloses a prevent stabbing blood taking needle, including the lag, the lag is hollow cylinder structure, first spout has all been seted up to the both sides of lag, the both sides of lag all are fixed with the needle wing, the second spout has been seted up at the top of needle wing, the inside of second spout is fixed with the fixed axle, sliding connection has the slider on the fixed axle, install the spring between slider and the second spout, the inside of second spout is rotated and is connected with the threaded rod, the threaded rod has the thread block through threaded connection, thread block and fixed axle sliding connection, the top of slider is rotated and is connected with the connecting rod. Compared with the prior art, the needle wings on the two sides of the utility model greatly improve the use stability, and effectively avoid the rotation of the needle head during blood sampling, which leads to puncture failure or subcutaneous hematoma; meanwhile, the retractable needle cylinder is utilized, so that the needle cylinder is convenient to store, medical personnel are prevented from being punctured, and the use safety is greatly improved.
Description
Technical Field
The utility model relates to a blood taking needle technical field especially relates to a prevent stabbing 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.
Most of existing blood taking needles adopt single needle wings, so that the needle head is easy to rotate during blood taking, blood taking failure or subcutaneous hematoma is caused, medical workers are easy to stab when the blood taking needle is used, the use safety is low, and the use is insufficient.
SUMMERY OF THE UTILITY MODEL
In order to solve the most single needle wing that adopts of blood taking needle among the prior art, this has just leaded to the needle to rotate easily when taking a blood sample to take place the problem of blood sampling failure or arouse subcutaneous hematoma, and stab medical personnel very easily when using, the lower problem of safety in utilization, the utility model provides a prevent stabbing blood taking needle.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a prevent stabbing blood taking needle, includes the lag, the lag is hollow cylinder structure, first spout has all been seted up to the both sides of lag, the both sides of lag all are fixed with the needle wing, the second spout has been seted up at the top of needle wing, the inside of second spout is fixed with the fixed axle, sliding connection has the slider on the fixed axle, install the spring between slider and the second spout, the internal rotation of second spout is connected with the threaded rod, the threaded rod has the thread block through threaded connection, thread block and fixed axle sliding connection, the top of slider is rotated and is connected with the connecting rod, the connecting rod inserts the inside of first spout and is connected with first movable block, install the cylinder on the first movable block, the connecting seat is installed to the bottom of cylinder, the connecting pipe is installed to the bottom of connecting seat.
Preferably, the fixed shaft is parallel to the threaded rod, and the spring is sleeved on the fixed shaft.
Preferably, the first movable block is connected with the protective sleeve in a sliding mode, and the connecting rod is connected with the first sliding groove in a sliding mode.
Preferably, the needle cylinder is fixedly sleeved with a second movable block, the first movable block and the second movable block are both of a cylindrical structure, and the first movable block and the second movable block are coaxial.
Preferably, the needle cylinder is sleeved with a sliding sleeve in a sliding mode, a protective cover is fixed on the sliding sleeve, and the protective cover is fixed to the top of the protective cover through threads.
Preferably, the sliding block and the thread block are both connected with the second sliding chute in a sliding manner.
Compared with the prior art, the beneficial effects of the utility model are that:
when the utility model is used, the connecting rod is firstly pressed, the connecting rod drives the sliding block and compresses the spring, the connecting rod drives the first movable block to move upwards, the first movable block drives the needle cylinder to slide and extend in the sliding sleeve, in the process, the second movable block slides in the protective sleeve to improve the motion stability of the needle cylinder, then the threaded rod is rotated, the threaded rod drives the threaded block to slide on the fixed shaft through the thread transmission with the threaded block to tightly clamp the slide block so that the extended needle cylinder is stable, then the needle cylinder is used for blood sampling, the threaded rod is rotated after the blood sampling is finished, the threaded rod drives the threaded block to separate from the slide block, under the action of the elastic force of the spring, the sliding block drives the first movable block through the connecting rod, the first movable block drives the needle cylinder to enter the protective sleeve, needle wings on two sides during blood collection greatly improve the use stability, and the phenomenon that the needle head rotates during blood collection to cause puncture failure or subcutaneous hematoma is effectively avoided;
in conclusion, compared with the prior art, the needle wings on the two sides of the utility model greatly improve the use stability, and effectively avoid the rotation of the needle head during blood sampling, which leads to puncture failure or subcutaneous hematoma; meanwhile, the retractable needle cylinder is utilized, so that the needle cylinder is convenient to store, medical personnel are prevented from being punctured, and the use safety is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a puncture-proof blood taking needle of the present invention;
fig. 2 is an enlarged schematic view of a portion a of the puncture-proof blood taking needle of the present invention.
In the figure: the needle protection device comprises a protection sleeve 1, a first sliding groove 2, a needle wing 3, a second sliding groove 4, a fixed shaft 5, a sliding block 6, a spring 7, a threaded rod 8, a threaded block 9, a connecting rod 10, a first movable block 11, a needle cylinder 12, a sliding sleeve 13, a protection cover 14, a second movable block 15, a connecting seat 16 and a connecting pipe 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a puncture-preventing blood taking needle, including lag 1, lag 1 is hollow cylinder structure, first spout 2 has all been seted up to lag 1's both sides, the both sides of lag 1 all are fixed with needle wing 3, second spout 4 has been seted up at needle wing 3's top, the inside of second spout 4 is fixed with fixed axle 5, sliding connection has slider 6 on the fixed axle 5, install spring 7 between slider 6 and the second spout 4, the inside of second spout 4 rotates and is connected with threaded rod 8, threaded rod 8 has threaded block 9 through threaded connection, threaded block 9 and fixed axle 5 sliding connection, the top of slider 6 rotates and is connected with connecting rod 10, connecting rod 10 inserts the inside of first spout 2 and is connected with first movable block 11, install syringe 12 on the first movable block 11, connecting seat 16 is installed to the bottom of syringe 12, connecting pipe 17 is installed to the bottom of connecting seat 16.
In one embodiment, the fixed shaft 5 is parallel to the threaded rod 8, and the spring 7 is sleeved on the fixed shaft 5.
In one embodiment, the first movable block 11 is slidably connected to the shield 1, and the connecting rod 10 is slidably connected to the first sliding chute 2.
As an embodiment, the second movable block 15 is fixedly sleeved on the needle cylinder 12, the first movable block 11 and the second movable block 15 are both in a cylindrical structure, and the first movable block 11 and the second movable block 15 are coaxial.
As an embodiment, a sliding sleeve 13 is slidably sleeved on the syringe 12, a protective cover 14 is fixed on the sliding sleeve 13, and the protective cover 14 is fixed on the top of the protective cover 1 through threads.
As an embodiment, the sliding block 6 and the threaded block 9 are both slidably connected to the second runner 4.
The working principle is as follows: when the blood sampling device is used, firstly, the connecting rod 10 is pressed, the connecting rod 10 drives the sliding block 6 and compresses the spring 7, the connecting rod 10 drives the first movable block 11 to move upwards, the first movable block 11 drives the needle cylinder 12 to slide and extend in the sliding sleeve 13, the second movable block 15 slides in the protective sleeve 1 in the process, the movement stability of the needle cylinder 12 is improved, then, the threaded rod 8 is rotated, the threaded rod 8 drives the threaded block 9 to slide on the fixed shaft 5 through the thread transmission with the threaded block 9, the sliding block 6 is clamped tightly, the extended needle cylinder 12 is stable, then, the needle cylinder 12 is used for blood sampling, the threaded rod 8 is rotated after the blood sampling is finished, the threaded rod 8 drives the threaded block 9 to be separated from the sliding block 6, the sliding block 6 drives the first movable block 11 through the connecting rod 10 under the elastic force of the spring 7, the first movable block 11 drives the needle cylinder 12 to enter the protective sleeve 1, and the needle wings 3 on two sides greatly improve the use stability during the blood sampling, the puncture failure or subcutaneous hematoma caused by the rotation of the needle head during blood sampling is effectively avoided;
in conclusion, compared with the prior art, the needle wings 3 on the two sides of the utility model greatly improve the use stability, and effectively avoid the rotation of the needle head during blood sampling, which leads to puncture failure or subcutaneous hematoma; meanwhile, the retractable needle cylinder 12 is utilized, so that the needle cylinder 12 can be conveniently stored, medical personnel can be prevented from being punctured, and the use safety is greatly improved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The puncture-preventing blood taking needle comprises a protective sleeve (1) and is characterized in that the protective sleeve (1) is of a hollow cylinder structure, first sliding grooves (2) are formed in two sides of the protective sleeve (1), needle wings (3) are fixed on two sides of the protective sleeve (1), second sliding grooves (4) are formed in the tops of the needle wings (3), a fixing shaft (5) is fixed inside the second sliding grooves (4), a sliding block (6) is connected onto the fixing shaft (5) in a sliding mode, a spring (7) is installed between the sliding block (6) and the second sliding grooves (4), a threaded rod (8) is connected to the inside of each second sliding groove (4) in a rotating mode, a threaded block (9) is connected to the threaded rod (8) through threads, the threaded block (9) is connected with the fixing shaft (5) in a sliding mode, and a connecting rod (10) is connected to the top of the sliding block (6) in a rotating mode, connecting rod (10) insert the inside of first spout (2) and be connected with first movable block (11), install cylinder (12) on first movable block (11), connecting seat (16) are installed to the bottom of cylinder (12), connecting pipe (17) are installed to the bottom of connecting seat (16).
2. A puncture resistant blood lancet according to claim 1, characterized in that the stationary shaft (5) is parallel to the threaded rod (8) and the spring (7) is sleeved on the stationary shaft (5).
3. A puncture-proof blood lancet according to claim 1, characterized in that the first movable block (11) is slidably connected with the shield (1), and the connecting rod (10) is slidably connected with the first chute (2).
4. A puncture-proof blood taking needle according to claim 1, wherein the needle cylinder (12) is fixedly sleeved with a second movable block (15), the first movable block (11) and the second movable block (15) are both in a cylinder structure, and the first movable block (11) and the second movable block (15) are coaxial.
5. A puncture-proof blood taking needle according to claim 1, wherein a sliding sleeve (13) is slidably sleeved on the needle cylinder (12), a protective cover (14) is fixed on the sliding sleeve (13), and the protective cover (14) is fixed on the top of the protective cover (1) through threads.
6. A puncture resistant blood lancet according to claim 1, wherein the slider (6) and the threaded block (9) are both slidably connected to the second chute (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023162390.2U CN214284920U (en) | 2020-12-24 | 2020-12-24 | Puncture-proof blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023162390.2U CN214284920U (en) | 2020-12-24 | 2020-12-24 | Puncture-proof blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214284920U true CN214284920U (en) | 2021-09-28 |
Family
ID=77861418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023162390.2U Active CN214284920U (en) | 2020-12-24 | 2020-12-24 | Puncture-proof blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214284920U (en) |
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2020
- 2020-12-24 CN CN202023162390.2U patent/CN214284920U/en active Active
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