| KOALA TOCO (K140163) | Clinical Innovations, LLC | 2014-05-29 |
| FEATHERLITE AQUA TOCODYNAMOMETER (K061044) | Ventrex, Inc. | 2006-07-12 |
| TRANSDUCERS FOR ULTRASOUND AND TOCODYNAMOMETER FETAL MONITORING (K040392) | American I.V. Products, Inc. | 2004-09-14 |
| TOCO LITE, MODEL TD-01 (K013477) | Ventrex, Inc. | 2002-01-17 |
| SECURELINE DISPOSABLE FETAL MONITORING STRAPS #3860 AND #3565 (K994353) | Precision Dynamics Corp. | 2000-03-22 |
| TRANSDUCERS FOR ULTRASOUND AND TOCODYNAMOMETER FETAL MONITORING (K992811) | Epic Medical Equipment Services, Inc. | 2000-01-18 |
| DISCO UTERINE CONTRACTION TRANSDUCER & ACCESSORIES (K954847) | Ocg Systems, Inc. | 1996-05-22 |
| TOCO TRANSDUCER (K952579) | Scientific Device Manufacturer, LLC | 1995-08-04 |
| BUBBLE TOCO (K920152) | Utah Medical Products, Inc. | 1993-05-26 |
| MEDI-TRACE(R) DISPOSABLE TOCOTONOMETER (K910282) | Graphic Controls Corp. | 1991-03-29 |
| AIR-SHIELDS VICKERS TELESCAN TELECOM DISPLAY SYST (K904691) | Air-Shields Vickers, Inc. | 1991-02-19 |
| MODEL600 UTERINE ACTIVITY MONITOR (K903623) | Corometrics Medical Systems, Inc. | 1990-11-07 |
| ORION WATCHGUARD (K902104) | Orion Industries | 1990-10-25 |
| MODEL 37 UTERINE CONTRACTION ACTIVITY MONITOR (K894030) | Healthdyne, Inc. | 1990-01-22 |
| TERM GUARD II DEVICE (K893770) | Tokos Medical Corp. | 1989-11-03 |
| CATALOG #2270AAX, 2270DAX BELTLESS TOCOTRANSDUCER (K891997) | Corometrics Medical Systems, Inc. | 1989-06-08 |
| MODEL NUMBER (TBD) TOCO DATA TELEPHONE TRANS. SYS. (K882080) | Aequitron Medical, Inc. | 1989-03-01 |
| PDS, MODEL NST 40 FETAL MONITOR, RECORDER & TRANS. (K873150) | Pediatric Diagnostic Service | 1988-03-11 |
| HEALTHPHONE TOCO MODEL (K874631) | Carelink | 1988-03-11 |
| AIR-CUSHION TOCOTONOMETER (K860933) | International Biomedics, Inc. | 1986-07-09 |
| EXTERNAL UTERINE CONTRACTION MONITOR-TOKODYNAMOMET (K853856) | Aequitron Medical, Inc. | 1986-03-12 |
| TERM GUARD 5000 UTERINE ACTIVITY (K843011) | Tokos Medical Corp. | 1984-11-01 |
| TOCO DATA TELEPHONE TRANSMITTER DT100P (K840747) | Advantage Medical Systems, Inc. | 1984-06-19 |