# Shantou Institute of Ultrasonic Instuments

- Location (FDA's records): Walnut Creek, CA
- FDA decisions: 11 (1997–2012): 11 510(k) clearances
- Product codes: IYO (8), IYN (3)
- Predicates its devices cite: 13 (3 its own); citations of its devices by later devices: 7 (3 its own)
- Recalls linked to its devices: 0 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Firms whose devices it cites most
- Hitachi Medical Corp. of America: 4 (https://510kreport.com/company/hitachi-medical-of-america)
- Medison America, Inc.: 2 (https://510kreport.com/company/medison-america)
- Ultrasonix Medical Corporation: 2 (https://510kreport.com/company/ultrasonix-medical)
- Advanced Technology Laboratories, Inc.: 1 (https://510kreport.com/company/advanced-technology-laboratories)
- Interspec, Inc.: 1 (https://510kreport.com/company/interspec)

## Firms that cite its devices most
- Shantou Institute of Ultrasonic Instruments (Siui: 2 (https://510kreport.com/company/shantou-institute-of-ultrasonic-instruments-siui)
- Shenzhen Well.D Medical Electronics Co., Ltd.: 1 (https://510kreport.com/company/shenzhen-well-d-medical-electronics)
- Shantou Institute of Ultrasonic Instruments Co., Ltd. (Siui): 1 (https://510kreport.com/company/shantou-institute-of-ultrasonic-instruments-co-siui)

## Its most-cited devices
- K012772: CTS-485 Ultrasound Imaging System (2001), cited by 2
- K113613: Digital Color Doppler Ultrasound Imaging System (2012), cited by 2
- K061083: CTS-7700 (2006), cited by 1
- K070982: CTS-7700 Digital Ultrasound Imaging System (2007), cited by 1
- K092907: Digital Ultrasound Imaging System, Convex Array Transducer, Linear Array Transducer, Convex Array Transducer, Phased Arr (2010), cited by 1

## Recent decisions
- K113613: Digital Color Doppler Ultrasound Imaging System (Jun 15, 2012)
- K092907: Digital Ultrasound Imaging System, Convex Array Transducer, Linear Array Transducer, Convex Array Transducer, Phased Arr (Mar 5, 2010)
- K081110: Siui CTS-900 Digital Ultrasound Imaging System (May 16, 2008)
- K070982: CTS-7700 Digital Ultrasound Imaging System (May 2, 2007)
- K061083: CTS-7700 (Jun 6, 2006)
- K013327: CTS-415 (Dec 14, 2001)
- K012772: CTS-485 Ultrasound Imaging System (Oct 1, 2001)
- K984203: Siui Apogee 800PLUS Ultrasound Imaging System (Nov 1, 1999)

Source page: https://510kreport.com/company/shantou-institute-of-ultrasonic-instuments