CN220695671U - Microneedle transdermal drug delivery device - Google Patents
Microneedle transdermal drug delivery device Download PDFInfo
- Publication number
- CN220695671U CN220695671U CN202320714053.4U CN202320714053U CN220695671U CN 220695671 U CN220695671 U CN 220695671U CN 202320714053 U CN202320714053 U CN 202320714053U CN 220695671 U CN220695671 U CN 220695671U
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- China
- Prior art keywords
- bar
- microneedle
- shell
- delivery device
- pressure rod
- Prior art date
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- 238000013271 transdermal drug delivery Methods 0.000 title claims description 12
- 230000006835 compression Effects 0.000 claims abstract description 45
- 238000007906 compression Methods 0.000 claims abstract description 45
- 238000009434 installation Methods 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 4
- 238000012377 drug delivery Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 208000005171 Dysmenorrhea Diseases 0.000 description 2
- 206010013935 Dysmenorrhoea Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000037317 transdermal delivery Effects 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model provides a microneedle percutaneous drug delivery device, which comprises a shell, a first opening and a second opening, wherein the shell is provided with a first opening; the first pressure rod can move along the vertical direction in the mounting cavity, and one end of the first pressure rod, which is close to the first opening, is provided with a microneedle patch; the first elastic piece is used for driving the first compression bar to move; the mounting channel is formed in the first pressure rod, the through hole is formed in the shell and communicated with the mounting channel, the second elastic piece and the second pressure rod are arranged in the mounting channel, when the second pressure rod moves to the mounting channel completely, the first elastic piece drives the first pressure rod to move so that the microneedle patch acts on a human body, when the first pressure rod moves to enable the mounting channel to be communicated with the through hole, the second pressure rod is clamped in the through hole, and the first pressure rod stops moving. According to the utility model, the mounting channel is arranged on the first pressure rod, and the second elastic piece and the second pressure rod are arranged in the mounting channel, so that the second pressure rod is matched with the through hole on the shell to form a switch structure, the operation is convenient, the device can be used in various scenes, and the applicability is good.
Description
Technical Field
The utility model relates to the technical field of microneedles, in particular to a microneedle percutaneous drug delivery device.
Background
The micro-needle is fine in size and can achieve percutaneous administration without touching subcutaneous nerves, so that the micro-needle can achieve the purpose of non-dysmenorrhea percutaneous administration. In order to deliver sufficient amounts of drug to the skin, microneedle patches are often used as carriers for drug delivery without dysmenorrhea.
The microneedles are typically distributed on the microneedle patch in a manner and the size of the microneedles is small, so that the microneedle patch needs to be penetrated into the skin with a certain force and speed, otherwise the microneedles on the microneedle patch are easily broken or bent, which affects the transdermal drug delivery effect of the microneedle patch.
The existing microneedle device is powered on by a power supply, but cannot be used in a scene without the power supply, so that the microneedle device is poor in applicability.
Disclosure of Invention
The utility model provides a microneedle percutaneous drug delivery device, which is used for solving the defect of poor applicability of a manual microneedle injector in the prior art.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: a microneedle transdermal drug delivery device comprising:
a housing having an installation cavity, one end of the housing being provided with a first opening;
the first compression bar is arranged in the mounting cavity and is suitable for moving in the vertical direction in the mounting cavity, part of the first compression bar can move from the first opening to the outside of the shell, and a microneedle patch is arranged at one end of the first compression bar, which is close to the first opening;
the first elastic piece is used for driving the first compression bar to move;
the utility model provides a microneedle patch, including the casing, the first depression bar, the second depression bar, the installation passageway has been seted up on the first depression bar along the horizontal direction, be provided with the through-hole on the casing with installation passageway intercommunication, be provided with second elastic component and second depression bar in the installation passageway, the second depression bar is connected the second elastic component, the second depression bar is in the installation passageway can move, works as the whole motion of second depression bar arrives in the installation passageway, first elastic component drive first depression bar motion makes microneedle patch acts on the human body, works as first depression bar motion to make the installation passageway with the position of through-hole intercommunication, the second elastic component drive second depression bar joint is in the through-hole, first depression bar stop motion.
Preferably, the method further comprises:
the skin tightening sleeve is arranged at the bottom of the shell and enables the bottom end of the shell to be positioned in the skin tightening sleeve, an elastic switch is arranged on the skin tightening sleeve, and the elastic switch is suitable for driving the second compression rod clamped in the through hole to the installation channel.
Preferably, the elastic switch comprises a pressing part arranged on the skin tightening sleeve and an abutting part arranged on the pressing part, and the abutting part is used for abutting against the second pressing rod.
Preferably, the pressing part is a bending plate arranged on the skin tightening sleeve, and the abutting part is a convex column arranged on the bending plate.
Preferably, the method further comprises:
the handle is arranged outside the shell and is in threaded connection with the top of the first compression bar.
Preferably, the first elastic piece is a first spring, the second elastic piece is a second spring, the first spring is sleeved on the first compression bar, and the second spring is sleeved on the second compression bar.
Preferably, the first compression bar comprises a first bar body, a second bar body and a third bar body, the first spring is sleeved on the first bar body, two ends of the first spring respectively lean against the shell and the second bar body, the second spring is arranged on the second bar body, and the microneedle patch is arranged at the end part of the third bar body.
Preferably, a guide bar is arranged on the outer surface of the first rod body along the vertical direction, a guide groove is arranged at the top of the shell, and the guide bar is arranged in the guide groove.
Preferably, the handle is in threaded connection with the first rod body;
the first rod body is in threaded connection with the second rod body.
Preferably, the housing comprises an upper shell and a lower shell, and the upper shell is in threaded connection with the lower shell.
Compared with the prior art, the utility model has the beneficial effects that: set up first depression bar, second depression bar, first elastic component, second elastic component and casing, through set up the installation passageway on first depression bar, set up second elastic component and second depression bar in the installation passageway for the through-hole cooperation on second depression bar and the casing forms switch structure, and convenient operation can use under multiple scene, and the suitability is good.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of a microneedle transdermal delivery device according to the present utility model;
FIG. 2 is a schematic view of the structure of section B-B of FIG. 1;
fig. 3 is a schematic cross-sectional structure of the lower case.
Reference numerals:
10. a housing; 11. an upper case; 12. a lower case; 121. a through hole; 20. a first compression bar; 21. a first rod body; 211. a guide bar; 22. a second rod body; 221. a mounting channel; 23. a third rod body; 30. a second compression bar; 40. a first elastic member; 50. a second elastic member; 60. a microneedle patch; 70. a skin tightening sleeve; 71. an elastic switch; 711. a pressing part; 712. an abutting portion; 80. and (5) a handle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 3, embodiments of the present application provide a microneedle transdermal drug delivery device comprising
Housing 10, first plunger 20, second plunger 30, first elastic member 40, second elastic member 50, and microneedle patch 60
For convenience in taking, the housing 10 is provided with a mounting cavity in the housing 10, one end of the housing 10 is provided with a first opening, the first compression bar 20 is arranged in the mounting cavity and is suitable for moving along the vertical direction in the mounting cavity, part of the first compression bar 20 can move from the first opening to the outside of the housing 10, one end, close to the first opening, of the first compression bar 20 is provided with a micro-needle patch 60, the micro-needle patch 60 is used for guiding medicine into the skin of a human body, the first elastic element 40 is used for driving the first compression bar 20 to move, and it is understood that the first elastic element 40 is in a compressed state during mounting, and the elastic force of the first elastic element 40 is used for driving the first compression bar 20 to move and guiding the micro-needle patch 60 into the skin of the human body.
A mounting channel 221 is formed on the first compression bar 20 along the horizontal direction, a through hole 121 is formed in the shell 10 and is communicated with the mounting channel 221, a second elastic piece 50 and a second compression bar 30 are arranged in the mounting channel 221, the second compression bar 30 is connected with the second elastic piece 50, the elastic force of the second elastic piece 50 is used for driving the second compression bar 30 to move towards the through hole 121, and the second compression bar 30 and the through hole 121 are matched to form a switch.
When the second compression bar 30 moves into the mounting channel 221, at this time, the switch corresponding to the microneedle transdermal drug delivery device is opened, the first elastic member 40 in a compressed state opens instantaneously and drives the first compression bar 20 to move so that the microneedle patch 60 acts on the human body, the process is fast and efficient, after the introduction of the microneedle patch 60 is completed, the first compression bar 20 is driven to move so that the mounting channel 221 is communicated with the through hole 121, at this time, the second elastic member 50 drives the second compression bar 30 to be clamped in the through hole 121, the first compression bar 20 stops moving, and at this time, the switch is closed.
In an embodiment, the microneedle transdermal drug delivery device further comprises a skin tightening sleeve 70, the skin tightening sleeve 70 is used for tightening the skin of a person when the microneedle patch 60 is introduced, so that the skin is relatively flat, the microneedle patch 60 can be better introduced, specifically, the skin tightening sleeve 70 is arranged at the bottom of the housing 10, the bottom end of the housing 10 is positioned in the skin tightening sleeve 70, namely, the bottoms of the microneedle patch 60 and the first pressure rod 20 are positioned in the skin tightening sleeve 70, the skin tightening sleeve 70 is provided with an elastic switch 71, the elastic switch 71 is suitable for driving the second pressure rod 30 clamped in the through hole 121 into the mounting channel 221, when the microneedle patch 60 needs to be introduced into the skin of the person, the elastic switch 71 is pressed so that the second pressure rod 30 is contracted into the mounting channel 221, the inner wall of the housing 10 limits the second pressure rod 30 so that the second pressure rod 30 is wholly positioned in the mounting channel 221, and the first pressure rod 20 is rapidly moved under the action of the first elastic member 40, so that the microneedle patch 60 can act on the skin of the person.
Further, the elastic switch 71 includes a pressing portion 711 provided on the skin tightening sleeve 70 and an abutting portion 712 provided on the pressing portion 711, the abutting portion 712 being for abutting against the second presser bar 30, the pressing portion 711 being for facilitating pressing by a human hand, the abutting portion 712 being capable of partially or fully extending into the through hole 121 so that the second presser bar 30 can be completely disengaged from the through hole 121 while being capable of completely entering into the inside of the mounting channel 221.
Specifically, the pressing portion 711 is a bent plate provided on the skin tightening sleeve 70, and the abutment portion 712 is a boss provided on the bent plate. The protruding columns are vertically disposed at the top of the bent plate, and the length of the protruding columns is greater than or equal to the length of the through holes 121, so that the second pressing rods 30 can be completely separated from the through holes 121 when the second pressing rods 30 are pushed.
In an embodiment, the microneedle transdermal drug delivery device further includes a handle 80, the handle 80 is used for pulling the first pressure bar 20, the first pressure bar 20 is driven by a human hand to move upwards so that the mounting channel 221 is communicated with the through hole 121, at this time, the second pressure bar 30 enters into the through hole 121 partially under the action of the second elastic member 50, the first pressure bar 20 does not move under the clamping action of the second pressure bar 30 and the through hole 121, at this time, the first elastic member 40 is compressed so that the next time the microneedle patch 60 is introduced, sufficient elastic force is provided, the handle 80 is arranged outside the housing 10 and is connected to the top of the first pressure bar 20 in a threaded manner, a second opening is provided at the other end of the housing 10, and during movement, the first pressure bar 20 is partially located in the second opening, so that the handle 80 can be conveniently mounted and the distance between the handle 80 and the first pressure bar 20 can be adjusted by adopting the threaded connection manner, thereby facilitating the holding of the handle 80.
Specifically, the first elastic member 40 is a first spring, the second elastic member 50 is a second spring, the first spring is sleeved on the first compression bar 20, and the second spring is sleeved on the second compression bar 30. The movement of the first and second compression bars 20, 30 may be provided with sufficient driving force by means of springs, although in other embodiments other elastic materials may be used, and the effect of the springs is better in this application.
Specifically, the first compression bar 20 includes a first rod 21, a second rod 22 and a third rod 23, the first spring is sleeved on the first rod 21, and two ends of the first spring are respectively abutted against the casing 10 and the second rod 22, so that the first spring has enough driving force from a compressed state to an open state, the second spring is arranged on the second rod 22, when the second compression bar 30 completely enters into the installation channel 221, the inner wall of the casing 10 and the second compression bar 30 jointly act to compress the second spring, in the application, the second compression bar 30 is provided with two second compression bars 30 at two ends of the second spring, the microneedle patch 60 is arranged at the end of the third rod 23, and the microneedle patch 60 can be arranged at the end of the third rod 23 in a pasting manner so as to be conveniently led into the skin of a person.
In order to enable the movement of the first compression bar 20 to be more stable, a guide bar 211 is arranged on the outer surface of the first rod body 21 along the vertical direction, a guide groove is formed in the top of the shell 10, the guide bar 211 is arranged in the guide groove, and the guide groove can limit the movement of the guide bar 211, so that the shell 10 can position the first compression bar 20 and prevent the first compression bar 20 from rotating and shifting.
In order to facilitate the whole disassembly and assembly, the handle 80 is in threaded connection with the first rod body 21, the first rod body 21 is in threaded connection with the second rod body 22, the shell 10 comprises an upper shell 11 and a lower shell 12, and the upper shell 11 is in threaded connection with the lower shell 12.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A microneedle transdermal drug delivery device, comprising:
a housing having an installation cavity, one end of the housing being provided with a first opening;
the first compression bar is arranged in the mounting cavity and is suitable for moving in the vertical direction in the mounting cavity, part of the first compression bar can move from the first opening to the outside of the shell, and a microneedle patch is arranged at one end of the first compression bar, which is close to the first opening;
the first elastic piece is used for driving the first compression bar to move;
the utility model provides a microneedle patch, including the casing, the first depression bar, the second depression bar, the installation passageway has been seted up on the first depression bar along the horizontal direction, be provided with the through-hole on the casing with installation passageway intercommunication, be provided with second elastic component and second depression bar in the installation passageway, the second depression bar is connected the second elastic component, the second depression bar is in the installation passageway can move, works as the whole motion of second depression bar arrives in the installation passageway, first elastic component drive first depression bar motion makes microneedle patch acts on the human body, works as first depression bar motion to make the installation passageway with the position of through-hole intercommunication, the second elastic component drive second depression bar joint is in the through-hole, first depression bar stop motion.
2. The microneedle transdermal drug delivery device of claim 1, further comprising:
the skin tightening sleeve is arranged at the bottom of the shell and enables the bottom end of the shell to be positioned in the skin tightening sleeve, an elastic switch is arranged on the skin tightening sleeve, and the elastic switch is suitable for driving the second compression rod clamped in the through hole to the installation channel.
3. The transdermal microneedle delivery device according to claim 2, wherein,
the elastic switch comprises a pressing part arranged on the skin tightening sleeve and an abutting part arranged on the pressing part, and the abutting part is used for abutting against the second pressure rod.
4. A microneedle transdermal drug delivery device according to claim 3, wherein,
the pressing part is a bending plate arranged on the skin tightening sleeve, and the abutting part is a convex column arranged on the bending plate.
5. The microneedle transdermal drug delivery device of any one of claims 1 to 4, further comprising:
the handle is arranged outside the shell and is in threaded connection with the top of the first compression bar.
6. The transdermal microneedle delivery device of claim 5, wherein,
the first elastic piece is a first spring, the second elastic piece is a second spring, the first spring is sleeved on the first pressure rod, and the second spring is sleeved on the second pressure rod.
7. The transdermal microneedle delivery device according to claim 6, wherein,
the first compression bar comprises a first bar body, a second bar body and a third bar body, the first spring is sleeved on the first bar body, two ends of the first spring respectively lean against the shell and the second bar body, the second spring is arranged on the second bar body, and the microneedle patch is arranged at the end part of the third bar body.
8. The transdermal microneedle delivery device of claim 7, wherein,
the outer surface of the first rod body is provided with a guide strip along the vertical direction, the top of the shell is provided with a guide groove, and the guide strip is arranged in the guide groove.
9. The transdermal microneedle delivery device of claim 7, wherein,
the handle is in threaded connection with the first rod body;
the first rod body is in threaded connection with the second rod body.
10. The transdermal microneedle delivery device of claim 5, wherein,
the shell comprises an upper shell and a lower shell, and the upper shell is in threaded connection with the lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320714053.4U CN220695671U (en) | 2023-04-03 | 2023-04-03 | Microneedle transdermal drug delivery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320714053.4U CN220695671U (en) | 2023-04-03 | 2023-04-03 | Microneedle transdermal drug delivery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220695671U true CN220695671U (en) | 2024-04-02 |
Family
ID=90445630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320714053.4U Active CN220695671U (en) | 2023-04-03 | 2023-04-03 | Microneedle transdermal drug delivery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220695671U (en) |
-
2023
- 2023-04-03 CN CN202320714053.4U patent/CN220695671U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |