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Fixed Dose Injector Pens
Abstract: A fixed dose injector pen comprises a transmission element (30) that is rotated to set and deliver a dose of a drug from a multi-dose cartridge (8). A circular ratchet (34) defines a small number of engagement positions around its circumference and selectively transmits the rotation of the transmission element (30) to a piston rod driver (24). Specifically, the circular ratchet (34) transmits the rotation of the transmission element (30) to the piston rod driver (24) only when the transmission element (30) is rotated in a dose delivery direction, and only if the transmission element (30) has previously been rotated in an opposite, dose setting direction through an angle sufficient to reach one of the engagement positions. Preferably, an axially moving injector element (4) is used to drive rotation of the transmission element (30) via a helical coupling (31, 32). When the piston rod (16) has advanced to a predetermined axial position, a last dose lock-out mechanism (42, 44) maintains the circular ratchet (34) in engagement to prevent a further dose being set.
Notices, Deadlines & Correspondence
Patent Information
Applicants
SHAILY ENGINEERING PLASTICS LIMITED
Inventors
1. KNOWLES, Stephen
2. UHMAN, Michal
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202147018358-IntimationOfGrant16-10-2023.pdf | 2023-10-16 |
| 1 | 202147018358-STATEMENT OF UNDERTAKING (FORM 3) [21-04-2021(online)].pdf | 2021-04-21 |
| 2 | 202147018358-PatentCertificate16-10-2023.pdf | 2023-10-16 |
| 2 | 202147018358-PROOF OF RIGHT [21-04-2021(online)].pdf | 2021-04-21 |
| 3 | 202147018358-PRIORITY DOCUMENTS [21-04-2021(online)].pdf | 2021-04-21 |
| 3 | 202147018358-FORM 3 [19-06-2023(online)].pdf | 2023-06-19 |
| 4 | 202147018358-POWER OF AUTHORITY [21-04-2021(online)].pdf | 2021-04-21 |
| 4 | 202147018358-FORM 3 [19-12-2022(online)].pdf | 2022-12-19 |
| 5 | 202147018358-FORM 1 [21-04-2021(online)].pdf | 2021-04-21 |
| 5 | 202147018358-CLAIMS [13-07-2022(online)].pdf | 2022-07-13 |
| 6 | 202147018358-FIGURE OF ABSTRACT [21-04-2021(online)].pdf | 2021-04-21 |
| 6 | 202147018358-DRAWING [13-07-2022(online)].pdf | 2022-07-13 |
| 7 | 202147018358-FER_SER_REPLY [13-07-2022(online)].pdf | 2022-07-13 |
| 7 | 202147018358-DRAWINGS [21-04-2021(online)].pdf | 2021-04-21 |
| 8 | 202147018358-FORM 3 [13-07-2022(online)].pdf | 2022-07-13 |
| 8 | 202147018358-DECLARATION OF INVENTORSHIP (FORM 5) [21-04-2021(online)].pdf | 2021-04-21 |
| 9 | 202147018358-COMPLETE SPECIFICATION [21-04-2021(online)].pdf | 2021-04-21 |
| 9 | 202147018358-OTHERS [13-07-2022(online)].pdf | 2022-07-13 |
| 10 | 202147018358-FORM 18 [22-04-2021(online)].pdf | 2021-04-22 |
| 10 | 202147018358-FORM 3 [05-04-2022(online)].pdf | 2022-04-05 |
| 11 | 202147018358-Correspondence_Form1_01-07-2021.pdf | 2021-07-01 |
| 11 | 202147018358-FER.pdf | 2022-02-10 |
| 12 | 202147018358-FORM 3 [19-10-2021(online)].pdf | 2021-10-19 |
| 12 | 202147018358.pdf | 2021-10-18 |
| 13 | 202147018358-FORM 3 [19-10-2021(online)].pdf | 2021-10-19 |
| 13 | 202147018358.pdf | 2021-10-18 |
| 14 | 202147018358-Correspondence_Form1_01-07-2021.pdf | 2021-07-01 |
| 14 | 202147018358-FER.pdf | 2022-02-10 |
| 15 | 202147018358-FORM 18 [22-04-2021(online)].pdf | 2021-04-22 |
| 15 | 202147018358-FORM 3 [05-04-2022(online)].pdf | 2022-04-05 |
| 16 | 202147018358-COMPLETE SPECIFICATION [21-04-2021(online)].pdf | 2021-04-21 |
| 16 | 202147018358-OTHERS [13-07-2022(online)].pdf | 2022-07-13 |
| 17 | 202147018358-FORM 3 [13-07-2022(online)].pdf | 2022-07-13 |
| 17 | 202147018358-DECLARATION OF INVENTORSHIP (FORM 5) [21-04-2021(online)].pdf | 2021-04-21 |
| 18 | 202147018358-FER_SER_REPLY [13-07-2022(online)].pdf | 2022-07-13 |
| 18 | 202147018358-DRAWINGS [21-04-2021(online)].pdf | 2021-04-21 |
| 19 | 202147018358-FIGURE OF ABSTRACT [21-04-2021(online)].pdf | 2021-04-21 |
| 19 | 202147018358-DRAWING [13-07-2022(online)].pdf | 2022-07-13 |
| 20 | 202147018358-FORM 1 [21-04-2021(online)].pdf | 2021-04-21 |
| 20 | 202147018358-CLAIMS [13-07-2022(online)].pdf | 2022-07-13 |
| 21 | 202147018358-POWER OF AUTHORITY [21-04-2021(online)].pdf | 2021-04-21 |
| 21 | 202147018358-FORM 3 [19-12-2022(online)].pdf | 2022-12-19 |
| 22 | 202147018358-PRIORITY DOCUMENTS [21-04-2021(online)].pdf | 2021-04-21 |
| 22 | 202147018358-FORM 3 [19-06-2023(online)].pdf | 2023-06-19 |
| 23 | 202147018358-PROOF OF RIGHT [21-04-2021(online)].pdf | 2021-04-21 |
| 23 | 202147018358-PatentCertificate16-10-2023.pdf | 2023-10-16 |
| 24 | 202147018358-STATEMENT OF UNDERTAKING (FORM 3) [21-04-2021(online)].pdf | 2021-04-21 |
| 24 | 202147018358-IntimationOfGrant16-10-2023.pdf | 2023-10-16 |
Search Strategy
| 1 | search(48)E_04-02-2022.pdf |