Inventor
ZHAOHUA CHANG
Inventor
CN
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Bprimary
A61BDiagnosis75%
A61MDevices for introducing media into, or onto, the body13%
F16KValves13%
PatentTitleYear
12,551,231Driving device and rotary grinding apparatus202612,484,948Flow regulating assembly and flexible cryoprobe with adjustable flow202512,245,801Adjustable cryoablation needle202512,239,355Balloon catheter and ablation system202512,213,719Cryoadhesion apparatus202511,679,239Double-layer cryogenic inflatable balloon2023Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023–2025Patents assigned to ACCUTARGET MEDIPHARMA SHANGHAI CO LTD (2)· patent assignee history
2023–2026Based in CN· patent location history
2025Patents assigned to ACCU TARGET MEDIPHARMA SHANGHAI CO LTD (3)· patent assignee history
2025Patents assigned to SHANGHAI MICROPORT EP MEDTECH CO LTD (1)· patent assignee history
2026Patents assigned to SHANGHAI MICROPORT ROTAPACE MEDTECH CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ACCU TARGET MEDIPHARMA SHANGHAI CO LTD | 3 | 2025 |
| ACCUTARGET MEDIPHARMA SHANGHAI CO LTD | 2 | 2023–2025 |
| SHANGHAI MICROPORT EP MEDTECH CO LTD | 1 | 2025 |
| SHANGHAI MICROPORT ROTAPACE MEDTECH CO LTD | 1 | 2026 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 6 | 2023–2026 |