CN220110205U - Drug delivery device - Google Patents
Drug delivery device Download PDFInfo
- Publication number
- CN220110205U CN220110205U CN202321680314.1U CN202321680314U CN220110205U CN 220110205 U CN220110205 U CN 220110205U CN 202321680314 U CN202321680314 U CN 202321680314U CN 220110205 U CN220110205 U CN 220110205U
- Authority
- CN
- China
- Prior art keywords
- drug delivery
- wall
- knob
- delivery device
- face
- Prior art date
- 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.)
- Active
Links
- 238000012377 drug delivery Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 abstract description 36
- 238000002347 injection Methods 0.000 abstract description 15
- 239000007924 injection Substances 0.000 abstract description 15
- 229940079593 drug Drugs 0.000 abstract description 13
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a drug delivery device, which comprises a pen cap, wherein a drug delivery mechanism is arranged on the right side surface of the pen cap, and a quantity adjusting mechanism is arranged on the right end surface of the drug delivery mechanism; the drug delivery mechanism comprises a drug delivery part and a connecting part, and the side surface of the drug delivery part is connected with the side surface of the connecting part; the connecting part comprises a pen holder, and the left side surface of the pen holder is in through connection with the right side surface of the pen cap; the quantity adjusting mechanism comprises a quantity adjusting part and an observing part, and the side surface of the quantity adjusting part is connected with the side surface of the observing part; the volume adjusting part comprises a knob, and the left end face of the knob is connected with the right side face of the pen holder. According to the drug delivery device, the metering mechanism is arranged, and the knob and the scale sleeve are matched to work, so that the drug delivery device can reciprocate when metering and adjusting are required to be delivered, waste of the drug is avoided, the button does not generate displacement in the metering and adjusting process, injection is convenient, the product transmission mechanism is simplified, and parts are optimized.
Description
Technical Field
The utility model relates to the technical field of drug delivery, in particular to a drug delivery device.
Background
An injection pen, also called a medication pen, is a device for injecting medication subcutaneously. Aims to make the injection of the medicine easier and more convenient to use, thereby improving the compliance of patients.
Chinese patent discloses a medication injection pen, publication number CN204337431U, comprising a housing and a dose setting knob rotatable relative to the housing. A brake assembly is disposed in the housing and has a ratchet member. The driver includes at least one external tooth.
But still suffer from the following drawbacks: the drug injection pen provides easy and customizable simple assembly by means of the above prior art drug injector, but the prior art sets the ratchet at the knob position, so that the knob of the prior art can only rotate in one direction, resulting in the drug injector only increasing and not decreasing, and if the regulated dose exceeds the preset amount, the drug is irreversible, only the empty needle can give out the drug, resulting in the waste of the drug.
The present utility model therefore proposes a drug delivery device which solves the long-standing technical problems of the prior art described above.
Disclosure of Invention
The present utility model is directed to a drug delivery device, which solves the above-mentioned problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the drug delivery device comprises a pen cap, wherein a drug delivery mechanism is arranged on the right side surface of the pen cap, a quantity adjusting mechanism is arranged on the right end surface of the drug delivery mechanism, a ratchet sleeve is arranged on the inner wall of the right end of the pen cap, and a driving ratchet is arranged on the inner wall of the ratchet sleeve;
the drug delivery mechanism also comprises a drug delivery part and a connecting part, and the side surface of the drug delivery part is connected with the side surface of the connecting part;
the connecting part comprises a pen holder, the left side surface of the pen holder is in through connection with the right side surface of the pen cap through a ratchet sleeve, a driving rod is arranged in the pen holder, a push rod is also arranged in the driving rod, the side surface of the push rod is in sliding connection with the inner wall of the driving rod, and the side surface of the push rod is connected with the side surface of the driving ratchet;
the volume adjusting mechanism comprises a volume adjusting part and an observing part, and the side surface of the volume adjusting part is connected with the side surface of the observing part; and
the volume adjusting part also comprises a knob, and the left end face of the knob is connected with the right side face of the pen holder.
Preferably, the knob right-hand member face is provided with the button, and the button left end face runs through the knob and extends to the actuating lever inside, button side and knob inner wall sliding connection, button side and knob inner wall sealing contact, the button can directly press the transportation medicine.
Preferably, the surface of the driving rod is sleeved with a reset spring, the left end surface of the button is in sealing extrusion contact with the inner wall of the driving rod, and the reset spring enables the button to reset in time after being pressed.
Preferably, the inner wall of the right end of the pen holder is provided with a locking ring, the side surface of the driving rod is in sliding connection with the inner wall of the locking ring, the right end surface of the reset spring is connected with the inner wall of the locking ring, and the locking ring can fix the position of the rotary button.
Preferably, the power spring is sleeved on the surface of the left end of the driving rod, the left end face of the power spring is connected with the right end face of the ratchet sleeve, the scale sleeve is arranged inside the pen holder, the right end face of the power spring is connected with the inner wall of the scale sleeve, the side face of the scale sleeve is in sliding connection with the inner wall of the pen holder, and the scale sleeve enables an operator to observe output measurement.
Preferably, the inner wall of the pen cap is provided with a medicine box, the inner wall of the medicine box is provided with a clamping bottle, the inner wall of the medicine box is connected with the surface of the clamping bottle in a sliding manner, and medicines are placed in the medicine box.
Preferably, the inner wall of the right end of the clamping bottle is provided with a clamping bottle rubber plug, the right side surface of the clamping bottle rubber plug is provided with a push rod gasket, the left end surface of the push rod is in extrusion contact with the right side surface of the clamping bottle rubber plug, and the push rod gasket enables the push rod to start the effect of transverse linear motion.
Preferably, the top surface of the pen cap is provided with a sleeve frame, so that the pen cap is convenient to place.
Compared with the prior art, the utility model has the beneficial effects that: the medicine conveying device is provided with the volume adjusting mechanism, and through the cooperation work of the knob and the scale sleeve, the medicine conveying device can reciprocate when carrying out the measurement adjustment of the to-be-conveyed, so that the adjustment is more accurate, the medicine waste is avoided, the button does not generate displacement in the process of the measurement adjustment, the injection is convenient, the product transmission mechanism is simplified, and the parts are optimized.
Specifically, the utility model ensures that the stress of the rubber plug is linear and no external force in other directions is influenced by the cooperation of the driving ratchet wheel, the ratchet wheel sleeve and the push rod, so that the rubber plug is kept in a balanced state, and the error of injection dosage is caused. And moreover, by the aid of the drug delivery mechanism, compared with the traditional rotary linear motion, the non-rotary linear motion is reduced in force decomposition, resistance generated by friction is reduced, and under the condition that only linear motion is generated, the push rod gasket and the clamping type bottle rubber plug do not generate relative displacement and rotation, so that inaccurate injection metering caused by deformation or deviation generated in the extrusion process is avoided.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
FIG. 2 is a schematic cross-sectional view of the present utility model.
Fig. 3 is an enlarged perspective view of the area a in fig. 2.
Fig. 4 is an enlarged perspective view of the region B in fig. 2.
Fig. 5 is an enlarged perspective view of the region C in fig. 2.
Fig. 6 is a schematic cross-sectional view of another working state of the present utility model.
In the figure: the medicine dispensing device comprises a pen cap 1, a medicine box 2, a 3-clip type bottle, a 4-clip type bottle rubber plug, a 5-power spring, a 6-driving rod, a 7-reset spring, an 8-button, a 9-push rod gasket, a 10-driving ratchet wheel, an 11-ratchet wheel sleeve, a 12-push rod, a 13-scale sleeve, a 14-pen holder, a 15-locking ring, a 16-knob, a 17-sleeve frame, a 101-dosing mechanism and a 201-dose adjusting mechanism.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but 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.
Example 1
Referring to fig. 1-6, the present utility model provides a technical solution: the drug delivery device comprises a pen cap 1, wherein a drug delivery mechanism 101 is arranged on the right side surface of the pen cap 1, and a quantity adjusting mechanism 201 is arranged on the right end surface of the drug delivery mechanism 101; the administration mechanism 101 further includes an administration portion and a connection portion, the side surface of the administration portion being connected to the side surface of the connection portion; the connecting part comprises a pen holder 14, and the left side surface of the pen holder 14 is in through connection with the right side surface of the pen cap 1.
The right-hand member face of knob 16 is provided with button 8, and the left end face of button 8 runs through knob 16 and extends to the inside of actuating lever 6, and the side of button 8 and the inner wall sliding connection of knob 16, the side of button 8 and the inner wall sealing contact of knob 16, and the inside of pen-holder 14 is provided with actuating lever 6, and the surface cover of actuating lever 6 is equipped with reset spring 7, the left end surface of button 8 and the inner wall sealing extrusion contact of actuating lever 6.
The left end surface of the driving rod 6 is sleeved with a power spring 5, the left end surface of the power spring 5 is connected with the right end surface of the ratchet sleeve 11, a scale sleeve 13 is arranged in the pen holder 14, the right end surface of the power spring 5 is connected with the inner wall of the scale sleeve 13, and the side surface of the scale sleeve 13 is in sliding connection with the inner wall of the pen holder 14.
Further, by providing the drug delivery mechanism 101, compared with the traditional rotary linear motion, the non-rotary linear motion reduces force decomposition, reduces resistance generated by friction, and avoids inaccurate injection metering caused by deformation or offset generated in the extrusion process because the push rod 12, the push rod gasket 9 and the clamping type bottle rubber plug 4 do not generate relative displacement and rotation under the condition that only linear motion is generated.
Example two
With continued reference to fig. 1-6, in accordance with a first embodiment: the volume adjusting mechanism 201 further comprises a volume adjusting part and an observing part, and the side surface of the volume adjusting part is connected with the side surface of the observing part; the volume adjusting part comprises a knob 16, the left end face of the knob 16 is connected with the right side face of the pen holder 14, a push rod 12 is arranged in the driving rod 6, and the side face of the push rod 12 is in sliding connection with the inner wall of the driving rod 6.
The inner wall of the pen cap 1 is provided with a medicine box 2, the inner wall of the medicine box 2 is provided with a clamp type bottle 3, the inner wall of the medicine box 2 is in sliding connection with the surface of the clamp type bottle 3, the inner wall of the right end of the clamp type bottle 3 is provided with a clamp type bottle rubber plug 4, the right side face of the clamp type bottle rubber plug 4 is provided with a push rod gasket 9, and the left end face of the push rod 12 is in extrusion contact with the right side face of the clamp type bottle rubber plug 4.
The inner wall of the right end of the pen cap 1 is provided with a ratchet sleeve 11, the left side surface of the pen holder 14 is in through connection with the right side surface of the pen cap 1 through the ratchet sleeve 11, the inner wall of the ratchet sleeve 11 is provided with a driving ratchet 10, the side surface of the push rod 12 is connected with the side surface of the driving ratchet 10, and the top surface of the pen cap 1 is provided with a sleeve frame 17. The inner wall at the right end of the pen holder 14 is provided with a locking ring 15, the side surface of the driving rod 6 is in sliding connection with the inner wall of the locking ring 15, and the right end surface of the return spring 7 is connected with the inner wall of the locking ring 15.
The medicament in the cartridge 3 can be injected once or injected for a plurality of times, and the medicament can be discarded after the injection is finished, so that a new cartridge 3 can not be replaced. After the injection is completed, if there is a next injection, the user only needs to pull out the needle head, and when the next injection is to be performed, the needle head is replaced by a new needle head.
Furthermore, the drug delivery device of the utility model can reciprocate when the metering adjustment is to be carried out by the arrangement of the metering adjustment mechanism 201 and the cooperation of the knob 16 and the scale sleeve 13, so that the dosage of the regulated drug is more accurate, the waste of the drug is avoided, the button does not generate displacement in the metering adjustment process, the injection is convenient, the product transmission mechanism is simplified, and the parts are optimized.
Moreover, through the cooperation work of the driving ratchet 10 and the ratchet sleeve 11, the push rod 12 only generates linear motion and does not generate rotary motion, so that the stress of the clamp type bottle rubber plug 4 is linear, the influence of external force in other directions is avoided, the defect that the push rod in the prior art is linear motion plus rotary motion is effectively overcome, the clamp type bottle rubber plug 4 is kept in a balanced state, and the overlarge error of injection dosage is avoided.
When in use, a user can rotate the knob 16 clockwise to drive the driving rod 6 to rotate, so that the scale sleeve 13 rotates rightwards, the power spring 5 is compressed, the knob 16 is loosened after the required medicine metering is regulated, and the locking ring 15 is used for limiting and retaining the medicine metering.
When the medicament metering needs to be regulated, the knob 16 is rotated anticlockwise, so that the driving rod 6 is driven to rotate, the scale sleeve 13 is rotated leftwards, and the power spring 5 is rebounded. The power spring 5 of the present utility model may be a compression spring, an extension spring or a torsion spring, and those skilled in the art can select the most suitable spring according to the actual design requirement, and is not limited to the spring of the present utility model.
After the required medicine is metered, the knob 16 is loosened, the medicine amount can be regulated to the required accurate amount by limiting the medicine amount through the locking ring 15, the button 8 is pressed down, the driving rod 6 is separated from the control of the knob 16, the reset spring 7 is compressed, the rod pin of the driving rod 6 enters the driving ratchet 10, the compressed power spring 5 rebounds to drive the scale sleeve to rotate anticlockwise, the driving rod 6 drives the driving ratchet 10 to enable the push rod 12 to move leftwards, the clamping type bottle rubber plug 4 is extruded through the push rod gasket 9, and the medicine feeding work is carried out.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A drug delivery device, the drug delivery device comprising:
the pen cap (1), the right side face of the pen cap (1) is fixedly provided with a drug delivery mechanism (101), the right end face of the drug delivery mechanism (101) is fixedly provided with a quantity adjusting mechanism (201), the inner wall of the right end of the pen cap (1) is provided with a ratchet sleeve (11), and the inner wall of the ratchet sleeve (11) is provided with a driving ratchet (10);
the drug delivery mechanism (101) further comprises a drug delivery part and a connecting part, wherein the side surface of the drug delivery part is connected with the side surface of the connecting part;
the connecting part further comprises a pen holder (14), the left side surface of the pen holder (14) is in through connection with the right side surface of the pen cap (1) through the ratchet sleeve (11), a driving rod (6) is arranged in the pen holder (14), a push rod (12) is further arranged in the driving rod (6), the side surface of the push rod (12) is in sliding connection with the inner wall of the driving rod (6), and the side surface of the push rod (12) is connected with the side surfaces of the two driving ratchets (10);
the volume adjusting mechanism (201) further comprises a volume adjusting part and an observing part, and the side surface of the volume adjusting part is connected with the side surface of the observing part; and
the metering part also comprises a knob (16), and the left end face of the knob (16) is connected with the right side face of the pen holder (14).
2. Drug delivery device according to claim 1, wherein the knob (16) right end face is provided with a button (8), the button (8) left end face extends through the knob (16) to the inside of the drive rod (6), the button (8) side face is slidingly connected with the knob (16) inner wall, the button (8) side face is in sealing contact with the knob (16) inner wall.
3. Drug delivery device according to claim 2, wherein the surface of the drive rod (6) is sleeved with a return spring (7), and the left end surface of the button (8) is in sealing and pressing contact with the inner wall of the drive rod (6).
4. A drug delivery device according to claim 3, wherein the inner wall of the right end of the pen holder (14) is provided with a locking ring (15), the side surface of the driving rod (6) is slidably connected with the inner wall of the locking ring (15), and the right end surface of the return spring (7) is connected with the inner wall of the locking ring (15).
5. Drug delivery device according to claim 1, wherein the left end surface of the driving rod (6) is sleeved with a power spring (5), the left end surface of the power spring (5) is connected with the right end surface of the ratchet sleeve (11), a scale sleeve (13) is arranged inside the pen holder (14), the right end surface of the power spring (5) is connected with the inner wall of the scale sleeve (13), and the side surface of the scale sleeve (13) is in sliding connection with the inner wall of the pen holder (14).
6. Drug delivery device according to claim 1, wherein the inner wall of the pen cap (1) is fixedly provided with a cartridge (2), the inner wall of the cartridge (2) is provided with a cartridge (3), and the inner wall of the cartridge (2) is slidingly connected with the surface of the cartridge (3).
7. Drug delivery device according to claim 6, wherein the inner wall of the right end of the cartridge (3) is provided with a cartridge plug (4), the right side of the cartridge plug (4) is provided with a push rod gasket (9), and the left end face of the push rod (12) is in pressing contact with the right side of the cartridge plug (4).
8. Drug delivery device according to claim 1, wherein the top surface of the pen cap (1) is provided with a cradle (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321680314.1U CN220110205U (en) | 2023-06-29 | 2023-06-29 | Drug delivery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321680314.1U CN220110205U (en) | 2023-06-29 | 2023-06-29 | Drug delivery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220110205U true CN220110205U (en) | 2023-12-01 |
Family
ID=88890545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321680314.1U Active CN220110205U (en) | 2023-06-29 | 2023-06-29 | Drug delivery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220110205U (en) |
-
2023
- 2023-06-29 CN CN202321680314.1U patent/CN220110205U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102438680B (en) | Medicament delivery device | |
| JP4643122B2 (en) | Automatic syringe with reset characteristics | |
| JP4302627B2 (en) | Product supply device with quick reset function of piston rod | |
| JP4668982B2 (en) | Drug delivery device with gear set having drive part with opening | |
| US6110149A (en) | Syringe | |
| CN1099301A (en) | Medication dispensing device | |
| KR100877795B1 (en) | Reservoir module with a piston rod | |
| US8376997B2 (en) | Device for delivering medicament | |
| JP4970282B2 (en) | Automatic injection device with release mechanism on top | |
| JP5483776B2 (en) | Display mechanism part of an automatic applicator for insulin in particular | |
| IL159662A (en) | Administration appliance comprisinga dosage device | |
| US20090247951A1 (en) | Injection device comprising low-loss drive | |
| US20210146060A1 (en) | A torsion spring driven injection device | |
| US9744311B2 (en) | Injection device with dose display for signaling the end of the injection | |
| US20230008805A1 (en) | An injection device for delivering a liquid drug | |
| DE10163325A1 (en) | Locking lock for connecting housing sections of an administration device | |
| CN112569431A (en) | Safe needleless injector with external dose display function | |
| CN219814897U (en) | Adjustable injection pen | |
| CN220110205U (en) | Drug delivery device | |
| CN116808360A (en) | drug delivery device | |
| CN112237663A (en) | Multi-scale liquid medicine injection pen | |
| CN103501835A (en) | Medical injector with ratcheting plunger | |
| US20210260293A1 (en) | A medical injection device | |
| WO2009150028A1 (en) | Improved injection device | |
| CN108025145B (en) | Piston washer assembly, method of assembly and drug delivery device |
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: 20240429 Address after: Room 201, 2nd Floor, Building 1, No. 1387, East Section of Sunshine Avenue, Dipu Street, Anji County, Huzhou City, Zhejiang Province, 313000 Patentee after: Zhejiang Senmai Hechuang Medical Technology Co.,Ltd. Country or region after: China Address before: 314100 5 / F, building 6, 5 / F, building 8, No. 313, Lingxiu Road, Luoxing street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: Jiaxing Senmai Medical Technology Co.,Ltd. Country or region before: China |