CN212416364U - Syringe for preparing oily and viscous chemical medicine - Google Patents
Syringe for preparing oily and viscous chemical medicine Download PDFInfo
- Publication number
- CN212416364U CN212416364U CN202020310234.7U CN202020310234U CN212416364U CN 212416364 U CN212416364 U CN 212416364U CN 202020310234 U CN202020310234 U CN 202020310234U CN 212416364 U CN212416364 U CN 212416364U
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- China
- Prior art keywords
- needle
- cylinder
- syringe
- needle head
- cylindrical barrel
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- Expired - Fee Related
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Abstract
The utility model relates to an injector for allocating oily and viscous chemical drugs, which comprises a needle cylinder, a push rod positioned in the needle cylinder, a detachable needle head arranged at the end part of the needle cylinder, and a needle cap covering the outside of the needle head, wherein the end part of the push rod is connected with a piston at a position close to the needle head, and the push rod and the piston form a mechanism which can move back and forth in the needle cylinder; the needle head is in threaded connection with the needle cylinder, wherein a needle head hand-held handle for holding is arranged on the side part of the needle head; the syringe tip just is equipped with the external screw thread with syringe needle spiro union position, and syringe needle tip just is equipped with the internal thread with syringe needle spiro union position, and the mutual spiro union of external screw thread and internal thread. The needle head and the needle cylinder are in a threaded connection mode, so that the purpose of improving the connection firmness of the needle head and the needle cylinder can be achieved; moreover, the handheld handle is arranged on the needle head, so that the needle head is convenient to take and has stronger practicability and functionality, and the needle head can be widely applied to the technical field of medical equipment.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to an injector for preparing oily and viscous chemical medicines.
Background
At present, hospitals are often required to carry out the tasks of preparing different chemical medicines together and injecting or delivering the medicines into patients by means of infusion after the medicines are mixed and prepared in the daily nursing and curing process of patients. For example, in the process of dispensing oily and viscous chemical drugs, a syringe is needed, and particularly, a needle on the syringe is used for extracting the drug in the container; the injector in the prior art mainly comprises a needle head, a needle cylinder and an injector push rod positioned in the needle cylinder, wherein the needle head is sleeved outside the needle cylinder, so that the problem that the needle head on the injector falls off is easily caused, and the phenomenon of chemical medicine leakage occurs; after the needle head falls off, the needle head is easy to stab, certain damage is caused to the medical care personnel, and medical resources are wasted.
Therefore, a syringe capable of preventing a needle from falling off, a needle from dropping out, or a needle from being punctured when the needle needs to be removed is desired to be further studied.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a technical scheme does:
an injector for allocating oily and viscous chemical medicaments comprises a needle cylinder, a push rod positioned in the needle cylinder, a detachable needle head arranged at the end part of the needle cylinder and a needle cap covering the outside of the needle head, wherein a piston is connected at the end part of the push rod and close to the needle head, and the push rod and the piston form a mechanism capable of moving back and forth in the needle cylinder; the needle head is in threaded connection with the needle cylinder, wherein a needle head handheld handle for holding is arranged on the side of the needle head; the syringe tip just is equipped with the external screw thread with syringe needle spiro union position, the syringe needle tip just is equipped with the internal thread with syringe needle spiro union position, just the mutual spiro union of external screw thread and internal thread.
Furthermore, the needle head comprises a columnar part and a screwing part fixedly connected with the columnar part, wherein the liquid medicine is output through the free end of the columnar part, and the handheld handle is positioned on the side surface of the screwing part and forms a certain included angle with the central axis where the screwing part is positioned; the internal thread is positioned on the inner side of the screwing part.
Further, the screw joint part comprises a first hollow cylinder and a second hollow cylinder, wherein the inner diameter of the first cylinder is larger than that of the second cylinder; a transition part is further arranged between the first cylinder and the second cylinder, and the internal thread is positioned in the first cylinder; and the second cylinder is fixedly connected with the columnar part.
Furthermore, the handle is in an oval sheet structure, and one end of the handle is fixedly connected to the screwing part; the first cylinder, the second cylinder and the transition part are integrally formed.
Furthermore, the needle cylinder comprises a first cylindrical cylinder and a second cylindrical cylinder, the push rod is positioned in the first cylindrical cylinder, and the external thread is positioned on the two outer side surfaces of the first cylindrical cylinder; a first transition part is arranged between the first cylindrical barrel and the second cylindrical barrel; the first cylindrical barrel, the second cylindrical barrel and the transition part are integrally formed.
Furthermore, a flanging is arranged at one end of the cylindrical barrel and far away from the needle head.
Further, the liquid outlet end of the needle head is sharpened.
After the structure more than adopting, the utility model has the advantages of as follows:
the needle head and the needle cylinder are in a threaded connection mode, so that the purpose of improving the connection firmness of the needle head and the needle cylinder can be achieved, and the needle head is prevented from falling off in the process of absorbing oily or viscous chemical medicines; moreover, the handheld handle is arranged on the needle head, so that the needle head is convenient to take, the problems that in the prior art, the needle head is accidentally punctured and the needle head is thin so that the needle head is inconvenient to take are solved, and the practicability and the functionality are high.
Drawings
FIG. 1 is a disassembled view of the embodiment of the present invention in use;
FIG. 2 is a schematic structural view of a syringe according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a needle head in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to fig. 1-3, an injector for dispensing oily and viscous chemical drugs comprises a syringe 1, a push rod 2 positioned in the syringe 1, a detachable needle 3 arranged at the end of the syringe 1, and a needle cap 4 covering the outside of the needle 3, wherein a piston 5 is connected to the end of the push rod 2 and close to the needle 3, and the push rod 2 and the piston 5 form a mechanism capable of moving back and forth in the syringe 1; the needle head 3 is in threaded connection with the needle cylinder 1, wherein a needle head holding handle 6 for holding is arranged on the side of the needle head 3; the end part of the needle cylinder 1 is provided with an external thread 7 in the position screwed with the needle head 3, the end part of the needle head 3 is provided with an internal thread 8 in the position screwed with the needle cylinder 1, and the external thread 7 is screwed with the internal thread 8.
In the process of preparing oily and viscous mixed liquid medicine, because its viscosity is great, consequently when utilizing the syringe to absorb the liquid medicine, can make the syringe needle drop from the cylinder, after droing, can make partly liquid medicine ooze, if the syringe needle that drops this moment does not in time handle, still probably can stab medical personnel. This application has adopted syringe needle and cylinder threaded connection's mode for this problem to set up the portion of gripping that is convenient for pick up the syringe needle on the syringe needle, thereby can solve above-mentioned technical problem, have great medical effect.
When the device is used for preparing viscous or oily liquid medicine, the needle head 3 is screwed on the needle cylinder 1 by using the hand-held handle 6, the needle cap 4 on the needle head 3 is taken down, and then the needle head 3 is stretched into a container for containing the liquid medicine to suck the liquid medicine; after the operation is completed, the handle 6 is grasped, the needle 3 is rotated and removed, and the needle is stored in a storage device such as a sharps box. In the whole process, as the needle head 3 is screwed with the needle cylinder 1, when the liquid medicine with certain viscosity is extracted, even if tensile stress is applied, the needle head 3 can be stabilized on the needle cylinder 1 and can not fall off; furthermore, because set up handheld handle 6 on syringe needle 3, when need not extract the liquid medicine and handheld syringe needle 3, directly through handheld handle 6 take hold between the fingers syringe needle 3 can, solved because pick up the syringe needle and cause the stab and take inconvenient problem.
The needle head 3 comprises a columnar part 31 and a screw joint part 32 fixedly connected with the columnar part 31, wherein liquid medicine is output through the free end of the columnar part 31, and the handheld handle 6 is positioned on the side surface of the screw joint part 32 and forms a certain included angle with the central axis of the screw joint part 32; the female screw 8 is located inside the screw portion 32.
When the needle 3 is screwed to the cylinder 1, the screw part 32 is screwed to the outside of the cylinder 1, thereby achieving the firm connection of the needle 3 and the cylinder 1. When the device is needed to be used, the needle cap 4 is taken down firstly, then the handle 6 on the needle head 3 is held by hands, and the needle head 3 is screwed on the needle cylinder 1. In order to prevent the needle cap 4 from colliding with the grip 6 when covering the needle tip 3, the grip 6 is provided on the screw portion 32 in a position close to the end.
The screw-connection part 32 comprises a first hollow cylinder 321 and a second hollow cylinder 322, wherein the inner diameter of the first cylinder 321 is larger than that of the second cylinder 322; a transition part 323 is arranged between the first cylinder 321 and the second cylinder 322, and the internal thread 8 is positioned in the first cylinder 321; the second cylinder 322 is fixedly connected with the columnar part 31.
In the device, the internal thread 8 is arranged on the inner side surface of the first cylinder 321; however, in order to firmly screw the internal thread 8 with the external thread 7 in the process of implementation, the internal thread may extend from the inner side of the first cylinder 321 to the position of the transition part 323 in the process of manufacturing.
The hand-held handle 6 is in an oval sheet structure, and one end of the hand-held handle is fixedly connected to the screw connection part 32; the first cylinder 321, the second cylinder 322 and the transition part 323 are integrally formed.
In the process of specific manufacturing, the handheld handle 6 can be made into a material with certain elasticity, so that the hand is prevented from being cut or scratched in the process of touching the handheld handle 6, and the safety of the handheld handle is improved. When it is attached to the screw-on portion 32, it can be achieved by means of gluing, in particular, by gluing the handle 6 to the screw-on portion 32.
The needle cylinder 1 comprises a first cylindrical barrel 11 and a second cylindrical barrel 12, the push rod 2 is positioned in the first cylindrical barrel 11, and the external thread 7 is positioned on the outer side surface of the second cylindrical barrel 12; a first transition part 13 is arranged between the first cylindrical barrel 11 and the second cylindrical barrel 12; the first cylindrical barrel 11, the second cylindrical barrel 12 and the first transition portion 13 are integrally formed.
The end part of the first cylindrical barrel 11 and the position far away from the needle 3 are provided with outward flanges 111.
The liquid outlet end of the needle head 3 is sharpened.
In the device, the structures of the push rod 2 and the piston 5 and the connection mode of the push rod and the piston 5 can be realized by adopting the prior art, wherein the push rod 2 and the piston 5 form a plunger structure; when liquid medicine needs to be extracted, the needle head 3 extends into a container for containing the liquid medicine, and then the push rod 2 is pulled to drive the piston 5 to move outwards together, so that the aim of sucking the liquid medicine is fulfilled; then, when the configuration is needed, the different extracted liquid medicines are mixed according to the medical orders and finally applied to infusion and other medical care operations.
Claims (7)
1. An injector for allocating oily and viscous chemical medicaments comprises a needle cylinder, a push rod positioned in the needle cylinder, a detachable needle head arranged at the end part of the needle cylinder and a needle cap covering the outside of the needle head, wherein a piston is connected at the end part of the push rod and close to the needle head, and the push rod and the piston form a mechanism capable of moving back and forth in the needle cylinder; the syringe is characterized in that the syringe needle is in threaded connection with the syringe, wherein a syringe needle handle for holding the syringe needle is arranged on the side of the syringe needle; the syringe tip just is equipped with the external screw thread with syringe needle spiro union position, the syringe needle tip just is equipped with the internal thread with syringe needle spiro union position, just the mutual spiro union of external screw thread and internal thread.
2. The injector for allocating the oily and viscous chemical drugs according to claim 1, wherein the needle comprises a columnar part and a screwing part fixedly connected with the columnar part, wherein the liquid drug is output through the free end of the columnar part, and the handheld handle is positioned on the side surface of the screwing part and forms a certain included angle with the central axis of the screwing part; the internal thread is positioned on the inner side of the screwing part.
3. The syringe for dispensing oily and viscous chemical drugs according to claim 2, characterized in that the screw-in part comprises a hollow cylinder I and a hollow cylinder II, wherein the inner diameter of the cylinder I is larger than that of the cylinder II; a transition part is further arranged between the first cylinder and the second cylinder, and the internal thread is positioned in the first cylinder; and the second cylinder is fixedly connected with the columnar part.
4. The syringe for dispensing oily and viscous chemical drugs according to claim 2, characterized in that the handle is an oval sheet structure, one end of which is fixed on the screw connection part; the first cylinder, the second cylinder and the transition part are integrally formed.
5. The syringe of claim 1, wherein the barrel comprises a first cylindrical barrel and a second cylindrical barrel, the plunger is located in the first cylindrical barrel, and the external threads are located on the outer lateral surfaces of the first cylindrical barrel; a first transition part is arranged between the first cylindrical barrel and the second cylindrical barrel; the first cylindrical barrel, the second cylindrical barrel and the transition part are integrally formed.
6. An injector for dispensing oily and viscous chemicals as claimed in claim 5, wherein the barrel is provided with a flange at one end remote from the needle.
7. The syringe for dispensing oily and viscous chemical drugs according to any one of claims 1 to 6, characterized in that the outlet end of the needle is sharpened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020310234.7U CN212416364U (en) | 2020-03-13 | 2020-03-13 | Syringe for preparing oily and viscous chemical medicine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020310234.7U CN212416364U (en) | 2020-03-13 | 2020-03-13 | Syringe for preparing oily and viscous chemical medicine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212416364U true CN212416364U (en) | 2021-01-29 |
Family
ID=74292008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020310234.7U Expired - Fee Related CN212416364U (en) | 2020-03-13 | 2020-03-13 | Syringe for preparing oily and viscous chemical medicine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212416364U (en) |
-
2020
- 2020-03-13 CN CN202020310234.7U patent/CN212416364U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210519 Address after: Western Theater general hospital, 270 Rongdu Avenue, Jinniu District, Chengdu City, Sichuan Province Patentee after: WESTERN THEATER GENERAL HOSPITAL OF PLA Address before: Room 407, unit 1, building 8, Runyang Shuanghe Ludao, East Bihe Road, Xindu District, Chengdu, Sichuan 610000 Patentee before: Yin Min |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210129 |