http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2020338328-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_16cf5c9740f467b44a8eeb6ff4dff511 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2037-0053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2037-0046 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2037-0023 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-0021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M37-0015 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M37-00 |
| filingDate | 2017-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6643ec39ccfc0c060b770d40b8f3237 |
| publicationDate | 2020-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2020338328-A1 |
| titleOfInvention | Pyramidal microneedles with enhanced drug loading capacity and method for manufacturing |
| abstract | The present invention provides a solution to increase the drug loading capacity and drug delivery precision of dissolving microneedles. These solutions include: (a) increasing the base of the microneedle cavities without substantially changing the microneedle's height and geometry, (b) use of drug suspension and sedimentation of drug by centrifugation, and (c) a specific centrifugation order for filling drug and matrix material. In the first preferred embodiment, a microneedle master mould comprising a plurality of pyramidal microneedles ( 5100 ), wherein each of the pyramidal microneedles further comprising a chamfered base ( 5200 ) which extends to and adjoins with its neighbouring chamfered bases is provided. In the second preferred embodiment, a method of making dissolving microneedles is provided, comprising (a) providing a microneedle template comprising a plurality of pyramidal microneedle cavities, wherein each of the pyramidal microneedle cavities further comprising a chamfered base which extends to and adjoins with its neighbouring chamfered bases; (b) loading a drug suspension in the substrate cavity on the microneedle template; (c) centrifuging the microneedle template which is loaded with a drug suspension, (d) loading a matrix material solution in the substrate cavity on the microneedle template; (d) centrifuging the microneedle template loaded with the drug suspension and the matrix material solution; and (e) drying the centrifuged microneedle template in a controlled environment. |
| priorityDate | 2017-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.