CN215937488U - Cell puncture device is inhaled to needle - Google Patents
Cell puncture device is inhaled to needle Download PDFInfo
- Publication number
- CN215937488U CN215937488U CN202122302285.2U CN202122302285U CN215937488U CN 215937488 U CN215937488 U CN 215937488U CN 202122302285 U CN202122302285 U CN 202122302285U CN 215937488 U CN215937488 U CN 215937488U
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- China
- Prior art keywords
- needle
- cylinder
- head
- puncture device
- bayonet
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- 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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- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 37
- 210000001519 tissue Anatomy 0.000 description 6
- 241000309551 Arthraxon hispidus Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 210000001165 lymph node Anatomy 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 210000004738 parenchymal cell Anatomy 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
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Abstract
The utility model provides a needle aspiration cell puncture device, which is characterized by comprising: the puncture needle comprises a puncture needle main body, a needle cylinder and a piston rod, wherein the needle head is used for puncturing, the needle cylinder is connected with the needle head, and the piston rod is movably sleeved in the needle cylinder; the clamp spring assembly comprises a clamp spring fixed on the piston rod and an abutting head connected to the clamp spring and abutted against the needle cylinder; and at least one bayonet which is arranged on a preset position of the needle cylinder, corresponds to the abutting head and is used for being clamped with the abutting head.
Description
Technical Field
The utility model relates to the technical field of minimally invasive, in particular to a needle aspiration cell puncture device.
Background
With the deep development of the minimally invasive technology, the needle aspiration cytology examination is widely applied as a minimally invasive auxiliary diagnosis technology and is mainly applied to superficial lymph node puncture and puncture of parenchymal organs such as thyroid under the guidance of B-ultrasonic. Compared with biopsy specimens, the needle aspiration cytology can ensure that a patient obtains a certain amount of cells for diagnosis of a pathologist without an operation, and pain and cost of the patient are reduced.
Most of the existing needle aspiration and puncture syringes used in the pathology department or the intervention department are disposable plastic syringes with the capacity of 5-20ml, and the cell acquisition mode is as follows: an operator determines a puncture part, disinfects locally, holds the injector to vertically prick into a lesion part, drags the piston handle to move in the direction far away from the needle cylinder, manually keeps the injector in a negative pressure state, and sucks lesion tissues at the same time. In the puncturing process, the hand needs to keep the negative pressure state of the injector and observe the cell amount of the suction constantly, so that great inconvenience is brought to the operation, and if the cell obtaining amount is small, puncturing is needed.
Furthermore, when the tissue becomes necrotic or cystic, the amount of diseased cells contained therein is more limited, often insufficient to diagnose the disease, and re-penetration is required even more specimens are surgically obtained.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above problems, and an object of the present invention is to provide a needle-aspiration cell puncture device.
The utility model provides a needle aspiration cell puncture device, which is characterized by comprising: the puncture needle comprises a puncture needle main body, a needle cylinder and a piston rod, wherein the needle head is used for puncturing, the needle cylinder is connected with the needle head, and the piston rod is movably sleeved in the needle cylinder; the clamp spring assembly comprises a clamp spring fixed on the piston rod and an abutting head connected to the clamp spring and abutted against the needle cylinder; and at least one bayonet which is arranged on a preset position of the needle cylinder, corresponds to the abutting head and is used for being clamped with the abutting head.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: wherein, the bayonet is a through hole.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: the clamp spring is approximately V-shaped and is provided with two connecting arms, one connecting arm is connected with the piston rod, and the other connecting arm is connected with the abutting head.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: the butt joint head is a cylinder, the top of the cylinder is smooth and round and is hemispherical, the bottom of the cylinder is connected with the clamp spring, and the butt joint head and the clamp spring are welded together or integrally formed.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: wherein, the contained angle between jump ring and the butt joint head when for free state is 60 degrees, and the contained angle between jump ring and the butt joint head when being in the pressurized state in the syringe is 30 degrees.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: wherein, the shape and the size of bayonet socket and the first phase-match of butt joint, the bayonet socket sets up to a plurality ofly, and a plurality of bayonet sockets distribute along the length direction of cylinder.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: wherein, the front end of the syringe is connected with the needle head, and the bayonet is arranged at the rear section of the syringe.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: wherein, the needle cylinder is also provided with volume indicating marks which are in one-to-one correspondence with the bayonets.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: wherein, the piston rod comprises a piston and a piston shaft, and the piston rod is movably sleeved in the needle cylinder.
The needle aspiration cell puncture device provided by the patent of the utility model can also have the following characteristics: wherein, the piston is an elastomer, the piston is tightly attached to the inner wall of the needle cylinder, and the rear end of the piston shaft is provided with a piston handle.
Action and effect of the utility model
According to the needle aspiration cell puncture device related to the patent of the utility model, the device comprises a needle head, a needle cylinder, a piston rod, an abutting head, a clamp spring and a bayonet, because the abutting head can be clamped in the bayonet arranged on the inner wall of the needle cylinder, an operator can directly drag a piston handle to move towards the direction far away from the needle cylinder during puncture until the abutting head is clamped in the bayonet, thereby fixing the puncture device and keeping the puncture device in a negative pressure state continuously during puncture, the operator can suck tissues for many times during single puncture, and the operator does not need to drag the piston rod and observe the cell amount obtained by suction at the same time. Therefore, the operator can concentrate on the puncture operation in a more relaxed state on one hand, and can adjust the negative pressure condition of the puncture device according to the suction condition to ensure the cell obtaining amount of single puncture on the other hand.
Drawings
FIG. 1 is a schematic plan view of a needle aspiration cell puncture device according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a clamp spring assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural relationship between the needle cylinder and the bayonet in the embodiment of the utility model.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the patent of the utility model easy to understand, the following embodiments are specifically described with reference to the attached drawings.
FIG. 1 is a schematic view of a structure of a needle aspiration cell puncture device according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a clamp spring assembly in an embodiment of the present invention; and FIG. 3 is a schematic view showing the structural relationship between the needle cylinder and the bayonet in the embodiment of the present invention.
As shown in fig. 1, 2 and 3, the present embodiment provides a needle aspiration cell puncturing device 100, which includes a puncturing needle body 10, a circlip assembly 20 and a bayonet 30.
In this embodiment, the puncture needle body 10 includes a needle tip 11, a cylinder 12, and a plunger rod 13.
The needle 11 is used for puncturing.
The forward end of the barrel 12 is connected to the needle 11.
The piston rod 13 is movably disposed in the syringe 12 and includes a piston 131, a piston shaft 132 and a piston handle 133. The piston 131 is an elastic body and closely attached to the inner wall of the cylinder 12. A piston shank 133 is provided at the rear end of the piston shaft 132.
The circlip assembly 20 includes a circlip 21 and an abutment head 22.
The circlip 21 is fixed to the piston rod 13. The clamp spring 21 is approximately V-shaped and comprises a first connecting arm 211 and a second connecting arm 212. The first connecting arm 211 is connected to the piston rod 13, and the second connecting arm 212 is connected to the abutment head 22.
The abutting head 22 is a cylinder, the top of the cylinder is smooth and round and hemispherical, and the bottom of the cylinder is connected to the clamp spring 21 and welded with the clamp spring 21. The included angle between the abutting head 22 and the clamp spring 21 is 90 degrees.
The bayonet 30 is arranged at a predetermined position of the syringe 12, in particular in a manner that a through opening is provided in the syringe 12, in particular at a rear stage of the syringe 12, and the syringe 12 is provided with a volume indication mark corresponding to the bayonet 30, the volume indication mark being a volume value indicating a volume of a space surrounded by the front end of the syringe 12 and the piston 131 when the abutment head 22 is engaged in the bayonet 30. The bayonet 30 is sized and shaped to mate with the abutment head 22 for engagement with the abutment head 22. In this embodiment, the three bayonets 30 are provided at the same pitch, and include a first bayonet 31, a second bayonet 32, and a third bayonet 33 distributed along the longitudinal direction of the cylinder, and when the abutment head 22 engages with the third bayonet 33, the piston 131 does not reach the position of the first bayonet 31.
The method of using the needle aspiration cell puncture device of the present embodiment: when the operator performs a puncture sampling operation using the needle aspiration cell puncture device 100, the piston rod 13 is pulled by the right hand to move in a direction away from the cylinder 12 until the abutment head 22 is engaged with the first engaging opening 31. Observing the cell amount obtained in the needle cylinder 12, if the cell amount is enough to meet the requirement, stopping dragging the piston handle 13, if the cell amount is not enough, pressing the abutting head 22 with the left hand to press the abutting head back into the needle cylinder 12, pressurizing with the right hand to continuously drag the piston handle 13 to move to the second bayonet 32 in the direction far away from the needle cylinder 12, and repeating the steps until the cell amount obtained in the needle cylinder 12 meets the experimental requirement, and stopping dragging the piston handle 13.
After the puncture sampling is finished, the abutting head 22 is pressed back into the needle cylinder 12 by the left hand, and the piston handle 13 is driven to move towards the needle cylinder 12 by the right hand through pressurization, so that the obtained cells or tissues are stored in the experimental container.
Effects and effects of the embodiments
According to the needle aspiration cell piercing depth that this embodiment relates, the device includes the syringe needle, the cylinder, the piston rod, the butt head, jump ring and bayonet socket, because the butt head can block in the bayonet socket of setting at the cylinder inner wall, the operator can directly drag the piston handle when the puncture and move towards the direction of keeping away from the cylinder, until blocking the butt head in the bayonet socket, thereby fixed piercing depth, and make it keep the negative pressure state at puncture in-process continuously, the operator can carry out suction many times to the tissue at single puncture in-process, need not to drag the piston rod while observing the cell volume that the suction obtained. Therefore, the operator can concentrate on the puncture operation in a more relaxed state on one hand, and can adjust the negative pressure condition of the puncture device according to the suction condition to ensure the cell obtaining amount of single puncture on the other hand.
Further, because the corresponding volume indicating mark is arranged beside the bayonet of the embodiment, an operator can visually see the cell amount obtained by puncturing. Because the abutting heads can be clamped into the bayonets and pulled out of the bayonets by pressing, and the number of the bayonets is three, operators can obtain different cell quantities by adjusting the position relation between the abutting heads and the three bayonets. When the abutting head is engaged with the third bayonet, the piston does not reach the position of the first bayonet, so when the abutting head is engaged with the third bayonet, the cell tissue obtained in the syringe does not flow out of the first bayonet and the second bayonet.
The above embodiments are preferred examples of the present invention and are not intended to limit the scope of the present invention.
For example, the number of the bayonets in the present embodiment is 3, and the distance between 3 bayonets is the same, the number of the bayonets in the present invention may be plural, and the distance between the plural bayonets may be the same or different.
Claims (10)
1. A needle aspiration cell puncture device, comprising:
the puncture needle comprises a puncture needle main body, a needle cylinder and a piston rod, wherein the needle head is used for puncturing, the needle cylinder is connected with the needle head, and the piston rod is movably sleeved in the needle cylinder;
the clamp spring assembly comprises a clamp spring fixed on the piston rod and an abutting head connected to the clamp spring and abutted to the needle cylinder; and
at least one bayonet which is arranged on a preset position of the needle cylinder, corresponds to the abutting head and is used for being clamped with the abutting head.
2. The needle aspiration cell puncture device according to claim 1, characterized in that:
wherein, the bayonet is a through hole.
3. The needle aspiration cell puncture device according to claim 1, characterized in that:
the clamping spring is approximately V-shaped and is provided with two connecting arms, one connecting arm is connected with the piston rod, and the other connecting arm is connected with the abutting head.
4. The needle aspiration cell puncture device according to claim 1, characterized in that:
the butting head is a cylinder, the top of the cylinder is smooth and round and is hemispherical, the bottom of the cylinder is connected with the clamp spring, and the butting head and the clamp spring are welded together or integrally formed.
5. The needle aspiration cell puncture device according to claim 4, characterized in that:
wherein, the jump ring with the contained angle between the butt head is when free state is 60 degrees, the jump ring with the butt head is in when the pressurized state in the cylinder between the contained angle is 30 degrees.
6. The needle aspiration cell puncture device according to claim 1, characterized in that:
the shape and size of the bayonet are matched with the abutting connection head, the bayonet is arranged in a plurality of bayonet, and the plurality of bayonet are distributed along the length direction of the needle cylinder.
7. The needle aspiration cell puncture device according to claim 6, characterized in that:
wherein, the front end of the needle cylinder is connected with the needle head, and the bayonet is arranged at the rear section of the needle cylinder.
8. The needle aspiration cell puncture device according to claim 1, characterized in that:
and volume indicating marks which correspond to the bayonets one by one are further arranged on the needle cylinder.
9. The needle aspiration cell puncture device according to claim 1, characterized in that:
the piston rod comprises a piston and a piston shaft, and the piston rod is movably sleeved in the needle cylinder.
10. The needle aspiration cell puncture device according to claim 9, characterized in that:
wherein the piston is an elastomer and is tightly attached to the inner wall of the needle cylinder,
and a piston handle is arranged at the rear end of the piston shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122302285.2U CN215937488U (en) | 2021-09-23 | 2021-09-23 | Cell puncture device is inhaled to needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122302285.2U CN215937488U (en) | 2021-09-23 | 2021-09-23 | Cell puncture device is inhaled to needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215937488U true CN215937488U (en) | 2022-03-04 |
Family
ID=80427487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122302285.2U Expired - Fee Related CN215937488U (en) | 2021-09-23 | 2021-09-23 | Cell puncture device is inhaled to needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215937488U (en) |
-
2021
- 2021-09-23 CN CN202122302285.2U patent/CN215937488U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220304 |