CN213642574U - Fixed dose injection pen - Google Patents
Fixed dose injection pen Download PDFInfo
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- CN213642574U CN213642574U CN202021579086.5U CN202021579086U CN213642574U CN 213642574 U CN213642574 U CN 213642574U CN 202021579086 U CN202021579086 U CN 202021579086U CN 213642574 U CN213642574 U CN 213642574U
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- screw rod
- medicine bottle
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Abstract
The utility model discloses a fixed dose injection pen, include: the pen core support is internally limited with an accommodating cavity with two open ends, and one open end of the pen core support is inserted with an injection needle connected with the medicine bottle; the pen rack is formed into a rod shape, and one end of the pen rack is connected with the other open end of the refill support; one end of the screw rod extends into the accommodating cavity and is connected with a medicine bottle rubber plug of the medicine bottle, and the screw rod can move along the axial direction of the screw rod to push the medicine bottle rubber plug to move synchronously; the adjusting assembly is arranged in the mounting cavity and connected with the screw rod, and can drive the screw rod to move towards or away from the needle head direction of the injection needle and limit the screw rod to move back when moving towards the needle head direction; and a part of the button assembly is arranged in the mounting cavity and is connected with the adjusting assembly, and the button assembly can control the moving direction of the adjusting assembly. The fixed-dose injection pen has the advantages of simple arrangement, convenience in operation, fixed injection dose and the like.
Description
Technical Field
The utility model belongs to the technical field of the injection pen, concretely relates to fixed dose injection pen.
Background
At present, some special patients in clinic, such as diabetes patients, hepatitis patients and the like, need to inject insulin, interferon, auxin, vaccine and the like on different occasions, the requirement on the accuracy of the injection dosage is particularly high, and common patients are inconvenient and cannot effectively achieve accurate medication in the process of using an old disposable syringe; in addition, the existing syringe capable of accurately injecting has the defects of high price, requirement of self-assembly and dosage adjustment, complex structure, inconvenience in use and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.
Therefore, the utility model provides a fixed dose injection pen, this fixed dose injection pen have advantages such as easy operation, injection dose are fixed.
According to the utility model discloses fixed dose injection pen, include: the pen core support is formed into a rod shape, an accommodating cavity with two open ends is defined in the pen core support, a medicine bottle containing liquid can be placed in the accommodating cavity, and an injection needle connected with the medicine bottle is inserted into one open end of the pen core support; the pen rack is formed into a rod shape, one end of the pen rack is connected with the other open end of the pen core support, and a mounting cavity which is communicated along the axial direction of the pen rack is defined in the pen rack; one end of the screw rod extends into the accommodating cavity and is connected with the medicine bottle rubber plug of the medicine bottle, and the screw rod can move along the axial direction of the screw rod to push the medicine bottle rubber plug to move synchronously; the adjusting assembly is arranged in the mounting cavity and connected with the screw rod, and can drive the screw rod to move towards or away from the needle head direction of the injection needle and limit the screw rod to retreat when moving towards the needle head direction; the button assembly, a part of the button assembly is established in the installation cavity and is connected with the adjusting assembly, and the button assembly can control the activity direction of the adjusting assembly.
According to the utility model discloses fixed dose injection pen cooperatees through adopting by refill support, penholder, lead screw, adjusting part and button assembly, makes the lead screw remove fixed distance towards the syringe needle direction, accomplishes fixed dose's injection. According to the utility model discloses fixed dose injection pen when carrying out the injection operation of prescription dose, pulls the button subassembly earlier, then injects the operation, can realize that the dose is fixed, has to set up simply, the operation of being convenient for, and save time improves advantages such as injection security.
According to the utility model discloses an embodiment, the button subassembly peg graft extremely the one end of installation cavity is equipped with first arch, adjusting part includes: the adjusting rod, the one end of adjusting the pole is equipped with the orientation the adjustment tank that the syringe needle place direction extends, it has to peg graft in the adjustment tank first arch, first arch can be along the length direction of adjustment tank is mobile, the adjustment tank can be right along its length direction's both ends first arch is spacing.
According to the utility model discloses an embodiment, the adjusting part still includes: and one end of the limiting clamping jaw is connected with the other end of the adjusting rod, and the other end of the limiting clamping jaw is connected with the outer peripheral surface of the screw rod so as to synchronously move in the same direction as the screw rod.
According to an embodiment of the present invention, the button assembly includes: the button seat is inserted into one end of the mounting cavity and is detachably connected with the adjusting rod; the button is arranged at one end, back to the penholder, of the button seat and is detachably connected with the button seat.
According to the utility model discloses an embodiment, the button seat respectively with adjust the pole with the button joint.
According to the utility model discloses an embodiment, the button seat is equipped with the passageway that link up along its axial, the button seat dorsad the internal face of the one end of penholder is equipped with the ring channel, the button is close to one side of button seat is equipped with the annular bulge, the bellied outer peripheral edge of annular plug in connect to in the ring channel.
According to the utility model discloses an embodiment, the internal face of penholder be equipped with the penholder inside groove that the adjustment tank is parallel to each other, be equipped with on the button seat with penholder inside groove matched with guide part.
According to an embodiment of the present invention, the fixed dose injection pen further comprises: the pushing piece is arranged at one end of the screw rod and connected with the medicine bottle rubber plug of the medicine bottle.
According to an embodiment of the present invention, the fixed dose injection pen further comprises: and the adhesive tape is clamped on two sides of the pen rack.
According to an embodiment of the present invention, the fixed dose injection pen further comprises: the pen cap is sleeved on the refill support.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is an exploded view of a fixed dose injection pen according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a button assembly of a fixed dose injection pen according to an embodiment of the present invention.
Reference numerals:
a fixed dose injection pen 100;
a cartridge holder 10; a housing chamber 11;
a pen holder 20; a mounting cavity 21; a glue strip 22;
a screw rod 30;
an adjustment assembly 40; an adjustment lever 41; the adjustment groove 42; a limit jaw 43;
a button assembly 50; a button 51; an annular projection 52; a button seat 53; an annular groove 54; the first projection 55; a guide portion 56;
a push sheet 60;
a pen cap 70.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A fixed dose injection pen 100 according to an embodiment of the present invention is described in detail below with reference to the drawings.
As shown in fig. 1 and 2, a fixed dose injection pen 100 according to an embodiment of the present invention includes: the pen core support 10, the pen holder 20, the lead screw 30, the adjusting assembly 40 and the button assembly 50.
Specifically, according to the fixed dose injection pen 100 of the embodiment of the present invention, the cartridge holder 10 is formed in a rod shape, the cartridge holder 10 defines a receiving cavity 11 with two open ends inside, a medicine bottle containing liquid can be placed in the receiving cavity 11, and an injection needle connected to the medicine bottle is inserted into one open end of the cartridge holder 10; the pen holder 20 is formed into a rod shape, one end of the pen holder is connected with the other open end of the pen core support 10, and a mounting cavity 21 which penetrates along the axial direction of the pen holder 20 is defined in the pen holder 20; one end of the screw rod 30 extends into the accommodating cavity 11 and is connected with a medicine bottle rubber plug of the medicine bottle, and the screw rod 30 can move along the axial direction to push the medicine bottle rubber plug to move synchronously; the adjusting assembly 40 is arranged in the mounting cavity 21 and connected with the screw rod 30, and the adjusting assembly 40 can drive the screw rod 30 to move towards or away from the needle head direction of the injection needle and limit the screw rod 30 to retreat when moving towards the needle head direction; a portion of the button assembly 50 is disposed in the mounting cavity 21 and connected to the adjustment assembly 40, and the button assembly 50 is capable of controlling the moving direction of the adjustment assembly 40.
In other words, the fixed dose injection pen 100 according to the embodiment of the present invention is mainly composed of the cartridge holder 10, the pen holder 20, the lead screw 30, the adjustment assembly 40, and the button assembly 50. The pen core support 10 and the pen rack 20 are both formed into a rod-shaped structure similar to a pen holder, the pen core support 10 is internally provided with a containing cavity 11 with two open ends, one open end of the containing cavity is inserted with an injection needle connected with a medicine bottle, and the other open end of the pen core support 10 is connected with the pen rack 20. Hold the medicine bottle that is used for placing the liquid in the chamber 11, the one end of lead screw 30 stretches into and holds in the chamber 11 and link to each other with the medicine bottle plug of medicine bottle, and lead screw 30 can follow its axial movable in order to promote medicine bottle plug synchronous movement. The cartridge defines therein a mounting cavity 21 penetrating in the axial direction thereof. The adjusting assembly 40 is disposed in the mounting cavity 21 and connected to the screw rod 30, and the adjusting assembly 40 can drive the screw rod 30 to move towards or away from the needle of the injection needle and limit the screw rod 30 to move backwards when moving towards the needle. The button assembly 50 is partially arranged in the mounting cavity 21 and connected with the adjusting assembly 40, the moving direction of the adjusting assembly 40 can be controlled by regulating and controlling the button assembly 50, the adjusting assembly 40 drives the screw rod 30 to move towards the needle head direction, the moving distance is the same at each time, the screw rod 30 can push the medicine bottle rubber plug to be pushed forwards, so that medicine liquid in the medicine flows out, and fixed dose injection is completed.
Therefore, according to the utility model discloses fixed dose injection pen 100, cooperate through adopting by refill support 10, penholder 20, lead screw 30, adjusting part 40 and button assembly 50, make lead screw 30 towards the syringe needle direction and remove fixed distance, accomplish the injection of fixed dose. According to the utility model discloses fixed dose injection pen 100 when carrying out the injection operation of prescription dose, stimulates button assembly 50 earlier, then injects the operation, can realize that the dose is fixed, has to set up simply, the operation of being convenient for, and save time improves advantages such as injection security.
According to the utility model discloses an embodiment, the one end that button assembly 50 pegged graft to installation cavity 21 is equipped with first arch 55, and adjusting assembly 40 is including adjusting pole 41, and the one end of adjusting pole 41 is equipped with towards the adjustment tank 42 that the syringe needle place direction extends, and it has first arch 55 to peg graft in the adjustment tank 42, and first arch 55 can be movable along the length direction of adjustment tank 42, and adjustment tank 42 can be spacing to first arch 55 along its length direction's both ends. That is, the adjustment assembly 40 is snap-fit connected to the button assembly 50, the protrusion on the button assembly 50 is movable within the adjustment slot 42, and when the button assembly 50 is depressed, the first protrusion 55 is movable to the end of the adjustment slot 42 facing the needle and rests. The length of the adjustment groove 42 is fixed, the distance that the first protrusion 55 moves in the adjustment groove 42 is also fixed, and the button assembly 50 and the adjustment rod 41 can move the screw rod 30 towards the needle for a fixed distance, thereby achieving the injection of a fixed dose. The device is simple in arrangement and can ensure the same amount of the pushed glue solution.
Further, the adjusting assembly 40 further comprises a limiting jaw 43, one end of the limiting jaw 43 is connected with the other end of the adjusting rod 41, and the other end of the limiting jaw 43 is connected with the outer peripheral surface of the screw rod 30 to synchronously move in the same direction as the screw rod 30. One end of the limiting claw 43 is provided with a claw which can limit the screw rod 30 to retreat when moving towards the needle direction.
In some embodiments of the present invention, the button assembly 50 includes a button seat 53 and a button 51, and one end of the button seat 53 inserted into the mounting cavity 21 is detachably connected to the adjusting rod 41; the button 51 is arranged at one end of the button seat 53, which faces away from the pen holder 20, and is detachably connected with the button seat 53. The button seat 53 is arranged to facilitate the connection of one end of the button assembly 50 with the adjusting rod 41 in the mounting cavity 21, and the other end of the button seat 53 can be connected with the button 51.
Alternatively, the button holder 53 is engaged with the adjustment lever 41 and the button 51, respectively. Connected through the mode of joint, not only set up simply, the user of being convenient for moreover operates.
As shown in fig. 2, preferably, the button holder 53 is provided with a through passage along an axial direction thereof, an inner wall surface of an end of the button holder 53 facing away from the pen stand 20 is provided with an annular groove 54, a side of the button 51 adjacent to the button holder 53 is provided with an annular protrusion 52, and an outer peripheral edge of the annular protrusion 52 is inserted into the annular groove 54. The button 51 is connected with the button seat 53 in a clamping mode, the setting is simple, and the screw rod 30 can be driven to move towards the needle head direction by pressing the button 51, so that the injection is completed.
Further, an inner pen holder groove parallel to the adjustment groove 42 is formed on the inner wall surface of the pen holder 20, and a guide portion 56 which is fitted into the inner pen holder groove is formed on the button holder 53. Therefore, the button seat 53 and the adjusting rod 41 can be clamped in the pen rack 20, and the arrangement is simple.
According to an embodiment of the present invention, the fixed dose injection pen 100 further comprises a push plate 60, wherein the push plate 60 is disposed at one end of the lead screw 30 and connected to a medicine bottle plug of the medicine bottle. The lead screw 30 can push the pushing piece 60, and the pushing piece 60 is stopped against the medicine bottle rubber plug to drive the medicine bottle rubber plug to move synchronously. It has simple structure and is convenient for pushing the liquid medicine.
Optionally, the fixed dose injection pen 100 further comprises: the adhesive tape 22 is clamped on two sides of the pen rack 20. The rubber strips 22 are arranged on the two sides of the pen rack 20, so that the pen rack is convenient to hold and is not easy to slide off.
Further, the fixed dose injection pen 100 further includes a cap 70, and the cap 70 is sleeved on the cartridge holder 10. The cap 70 protects the needle from contact with the outside and prevents contamination.
In summary, according to the fixed dose injection pen 100 of the embodiment of the present invention, multiple injections of one liquid medicine can be realized through the fixed dose injection pen 100, and the liquid medicine injected at each time is a fixed dose, and the fixed dose injection pen has the advantages of simple setting, convenient operation, etc.
Other structures and operations of a fixed dose injection pen according to embodiments of the present invention are understood and readily implemented by those skilled in the art, and therefore will not be described in detail.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A fixed dose injection pen, comprising:
the pen core support is formed into a rod shape, an accommodating cavity with two open ends is defined in the pen core support, a medicine bottle containing liquid can be placed in the accommodating cavity, and an injection needle connected with the medicine bottle is inserted into one open end of the pen core support;
the pen rack is formed into a rod shape, one end of the pen rack is connected with the other open end of the pen core support, and a mounting cavity which is communicated along the axial direction of the pen rack is defined in the pen rack;
one end of the screw rod extends into the accommodating cavity and is connected with the medicine bottle rubber plug of the medicine bottle, and the screw rod can move along the axial direction of the screw rod to push the medicine bottle rubber plug to move synchronously;
the adjusting assembly is arranged in the mounting cavity and connected with the screw rod, and can drive the screw rod to move towards or away from the needle head direction of the injection needle and limit the screw rod to retreat when moving towards the needle head direction;
the button assembly, a part of the button assembly is established in the installation cavity and is connected with the adjusting assembly, and the button assembly can control the activity direction of the adjusting assembly.
2. The fixed dose injection pen of claim 1, wherein the end of the button assembly that plugs into the mounting cavity is provided with a first protrusion, and the adjustment assembly comprises:
the adjusting rod, the one end of adjusting the pole is equipped with the orientation the adjustment tank that the syringe needle place direction extends, it has to peg graft in the adjustment tank first arch, first arch can be along the length direction of adjustment tank is mobile, the adjustment tank can be right along its length direction's both ends first arch is spacing.
3. The fixed-dose injection pen of claim 2, wherein the adjustment assembly further comprises:
and one end of the limiting clamping jaw is connected with the other end of the adjusting rod, and the other end of the limiting clamping jaw is connected with the outer peripheral surface of the screw rod so as to synchronously move in the same direction as the screw rod.
4. The fixed-dose injection pen of claim 2, wherein the button assembly comprises:
the button seat is inserted into one end of the mounting cavity and is detachably connected with the adjusting rod;
the button is arranged at one end, back to the penholder, of the button seat and is detachably connected with the button seat.
5. The fixed-dose injection pen of claim 4, wherein the button holder snaps with the adjustment lever and the button, respectively.
6. The fixed dose injection pen according to claim 5, wherein the button holder is provided with a through passage extending axially therethrough, an inner wall surface of an end of the button holder facing away from the pen holder is provided with an annular groove, a side of the button adjacent to the button holder is provided with an annular projection, and an outer peripheral edge of the annular projection is inserted into the annular groove.
7. The fixed-dose injection pen of claim 4, wherein the inner wall surface of the pen holder is provided with an inner pen holder groove parallel to the adjustment groove, and the button holder is provided with a guide portion engaged with the inner pen holder groove.
8. The fixed-dose injection pen of claim 1, further comprising:
the pushing piece is arranged at one end of the screw rod and connected with the medicine bottle rubber plug of the medicine bottle.
9. The fixed-dose injection pen of claim 1, further comprising:
and the adhesive tape is clamped on two sides of the pen rack.
10. The fixed-dose injection pen of claim 1, further comprising:
the pen cap is sleeved on the refill support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021579086.5U CN213642574U (en) | 2020-08-03 | 2020-08-03 | Fixed dose injection pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021579086.5U CN213642574U (en) | 2020-08-03 | 2020-08-03 | Fixed dose injection pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213642574U true CN213642574U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021579086.5U Active CN213642574U (en) | 2020-08-03 | 2020-08-03 | Fixed dose injection pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213642574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114209928A (en) * | 2021-12-15 | 2022-03-22 | 江苏吉春医用器材有限公司 | Insulin syringe convenient to change syringe needle |
-
2020
- 2020-08-03 CN CN202021579086.5U patent/CN213642574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114209928A (en) * | 2021-12-15 | 2022-03-22 | 江苏吉春医用器材有限公司 | Insulin syringe convenient to change syringe needle |
| CN114209928B (en) * | 2021-12-15 | 2023-06-30 | 江苏吉春医用器材有限公司 | Insulin syringe convenient to change syringe needle |
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