GEM Flow NOW
The GEM Flow Now monitors blood flow in peripheral vessels during and after reconstructive microsurgery, reimplantation and free-flap transfer. Its assembly combines a silicone vessel…
The GEM Flow Now monitors blood flow in peripheral vessels during and after reconstructive microsurgery, reimplantation and free-flap transfer. Its assembly combines a silicone vessel sleeve, a 20 MHz Doppler probe and wire, and an external lead connecting to a compatible monitor.
The sleeve holds the probe against the vessel by a press fit. Flow can be checked as needed for up to seven days after surgery. The device accommodates veins and arteries with outside diameters from 2 to 4 mm.
Listed Item
Doppler Blood Flow Monitoring Device
Probe Removal
The Doppler probe must be removed 3 to 14 days after surgery once monitoring is complete. The surgeon withdraws it by the external wire, while the silicone sleeve remains permanently implanted. Compatible monitors are GEM1020M and GEM1020M-2.
Who Else Makes It
Concentrated in Guangdong (10), Jiangsu (5), Shandong (2). 3 of them are registered as contract manufacturers, able to build to a buyer’s own specification.
| Manufacturer | City | Province | Registered as | Device types |
|---|---|---|---|---|
| Xuzhou Yongkang Electronic Science Technology Co., Ltd. | Xuzhou | Jiangsu | Contract manufacturer | 13 |
| Xian Friendship Medical Electronics Co., Ltd. | Xi’An | Shaanxi | Contract manufacturer | 10 |
| Philips Ultrasound (Shanghai) Co., Ltd. | Shanghai | Shanghai | Contract manufacturer | 5 |
| Shenzhen Mindray BIO-Medical Electronics Co., Ltd. | Shenzhen | Guangdong | Specification developer | 61 |
| GE Medical Systems (China) Co., Ltd. | Wuxi | Jiangsu | Contract manufacturer | 57 |
| Edan Instruments, Inc. | Shenzhen | Guangdong | Contract manufacturer | 56 |
| Contec Medical Systems Co., Ltd. | Qinhuangdao | Hebei | Manufacturer | 22 |
| Shenzhen Viatom Technology Co., Ltd. | Shenzhen | Guangdong | Manufacturer | 9 |
| Shantou Institute OF Ultrasonic Instruments Co., Ltd. | Shantou | Guangdong | Contract manufacturer | 8 |
| Sonoscape Medical Corp. | Shenzhen | Guangdong | Manufacturer | 7 |
| Carbon (Shenzhen) Medical Device Co., Ltd. | Shenzhen | Guangdong | Manufacturer | 6 |
| Chison Medical Technologies Co., Ltd. | Wuxi | Jiangsu | Contract manufacturer | 5 |
Showing 12 of 22. All 22 manufacturers in China registered for System, Imaging, Pulsed Doppler, Ultrasonic
Record
| Listed by | Synovis Micro Companies Alliance, United States |
|---|---|
| FDA product code | IYN |
| Device type | System, Imaging, Pulsed Doppler, Ultrasonic |
| Device class | Class 2 |
| Regulation | 21 CFR 892.1550 |
| 510(k) | K233394 |
| Record published | 2024-11-21 |
Specifications
| MRI safety | MR Conditional |
|---|---|
| Supplied sterile | Yes |
| Single use | Yes |
| Prescription | Prescription only |
| Latex | Labelled latex-free |
| Label carries | lot or batch number, expiry date, manufacturing date |
| Storage | Storage environment temperature 15 to 25 °C |
Catalogue Numbers
| Catalogue number | Size | Status |
|---|---|---|
| 520002040011 | Vessel Diameter: 2-4 Millimeter | In distribution |
Same Product Code
| Product | Sold by | Catalogue numbers |
|---|---|---|
| Hisense | Qingdao Hisense Medical Co., Ltd. | 219 |
| Medisono | Medisono, LLC | 173 |
| SonoScape | Sonoscape Medical Corp. | 111 |
| Hisense | Qingdao Hisense Medical Equipment Co., Ltd. | 92 |
| Diagnostic Ultrasound System | Shenzhen Mindray BIO-Medical Electronics Co., Ltd. | 89 |
| Medistim Interconnect Cable | Medistim ASA | 40 |
| Compact Cart | Philips Ultrasound LLC | 30 |
| Siui | Shantou Institute OF Ultrasonic Instruments Co., Ltd. | 27 |
| Clarius Ultrasound Scanner | Clarius Mobile Health Corp. | 25 |
| Logiq | GE Ultrasound Korea, Ltd. | 25 |
| Wisonic | Shenzhen Wisonic Medical Technology Co., Ltd. | 22 |
| Vivid | GE Vingmed Ultrasound A/S | 21 |
Showing 12 of 934. All products under System, Imaging, Pulsed Doppler, Ultrasonic
510(K) Clearances
| Clearance | Decision date |
|---|---|
| K233394 | 2024-01-28 |
PMA Approvals
A premarket approval is the full Class III route, granted on clinical evidence rather than on equivalence to an existing device. It is the highest regulatory bar a device of this type can clear.
| PMA number | Decision | Trade name | Approved to |
|---|---|---|---|
| P940005 | 1996-04-11 | ULTRAMARK 9 HIGH DEFINITION IMAGING UULTRASOUND SYSTEM | Advanced Technology Laboratories, Inc. |
Source: U.S. FDA establishment registration and device listing records, public domain. Restructured for clarity and searchability. Not affiliated with or endorsed by the FDA. Records are records: nothing here is an offer of sale.