Fetoheart Sonic Aid Doppler (clinic/hospital use)

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A Fetoheart Sonic Aid Doppler (Fetal Doppler) is a Class II medical ultrasound device (2-3 MHz probe) for real-time detection and audible/visual display of fetal heart rate in clinical obstetric settings from 10-12 weeks gestation. Features include handheld or tabletop console, waterproof probe, digital heart rate display (30-240 bpm), amplified speaker, headphone jack, and rechargeable battery or AC power operation. Continuous wave or pulsed wave Doppler technology with auto-correlation signal processing rejects maternal artifact. Primary clinical applications include fetal heart rate detection and monitoring during routine prenatal visits, confirmation of fetal viability in first trimester, intermittent fetal monitoring during labor, non-stress test administration, multiple gestation assessment, fetal presentation determination, and post-procedure confirmation (amniocentesis, CVS, ECV). Critical safety considerations include following ALARA principle (minimum necessary exposure), appropriate ultrasound gel use, probe pressure avoidance, infection control (probe cleaning between patients), differentiation of fetal from maternal signals, and interpretation by qualified providers. Essential equipment in outpatient obstetric clinics, hospital labor and delivery units, and prenatal care settings.

Categories: DIAGNOSTIC EQUIPMENT, Diagnostic Kits, Fetal Dopplers and Monitors, Multi-Parameter Monitors, OBSTETRICS, GYNECOLOGY AND NEONATAL, PATIENT MONITORING AND LIFE SUPPORT Tags: Dop tone, Fetal Doppler, Fetal Heart Detector, Fetal Monitor, Labor And Delivery, Obstetric Ultrasound, Prenatal Care

Description

Fetoheart Sonic Aid Doppler (clinic/hospital use)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Fetal Heart Rate Detection and Monitoring:

Primary Use: Provides real-time audible and visual display of fetal heart rate using Doppler ultrasound technology, allowing clinicians to assess fetal cardiac activity, rate, and rhythm during routine prenatal visits from as early as 10-12 weeks gestation.
How it helps: Gives obstetricians and midwives an immediate window into the baby’s well-being at every prenatal visit, providing objective evidence that the pregnancy is progressing normally and alerting them to any concerns that need further investigation.

2. Confirmation of Fetal Viability:

Primary Use: Rapid, non-invasive confirmation of fetal cardiac activity in first-trimester pregnancies, particularly valuable for patients with history of miscarriage, bleeding, or cramping where viability assessment is clinically indicated.
How it helps: Provides anxious parents and their doctors with immediate answers during moments of uncertainty, offering reassurance that the pregnancy is viable when there are concerns about miscarriage.

3. Intermittent Fetal Monitoring During Labor:

Primary Use: Used in hospital labor and delivery units for periodic assessment of fetal heart rate between contractions in low-risk pregnancies, providing audible feedback of fetal response to labor.
How it helps: Allows laboring mothers to maintain mobility and a less restrictive birth experience while still ensuring their baby is regularly checked for any signs of distress.

4. Non-Stress Test (NST) Administration:

Primary Use: Integrated with fetal monitors for non-stress testing in outpatient obstetric clinics, assessing fetal heart rate accelerations in response to fetal movement as an indicator of fetal well-being.
How it helps: Provides reassurance that a baby in a high-risk pregnancy is healthy and receiving enough oxygen, helping doctors make informed decisions about delivery timing.

5. Multiple Gestation Assessment:

Primary Use: Allows identification and monitoring of individual fetal heart rates in twin and higher-order multiple pregnancies, with experienced clinicians able to distinguish between fetuses.
How it helps: Helps clinicians caring for mothers expecting multiples ensure each baby is developing normally, providing individual attention to every fetus in the womb.

6. Fetal Presentation and Position Determination:

Primary Use: The point of maximal intensity of fetal heart sounds helps experienced practitioners determine fetal lie and presentation, particularly in later gestation.
How it helps: Gives clinicians valuable information about how the baby is positioned before delivery, helping them plan for a safe birth and anticipate any potential complications.

7. Post-Procedure Confirmation:

Primary Use: Used after amniocentesis, chorionic villus sampling, or external cephalic version to confirm continued fetal well-being and cardiac activity.
How it helps: Provides immediate reassurance after invasive procedures that the baby is tolerating the intervention well and that fetal heart activity remains normal.

SECONDARY & SUPPORTIVE USES

1. Patient Reassurance: Provides audible fetal heart sounds to expectant parents during prenatal visits, enhancing bonding and reducing anxiety by letting them hear their baby’s heartbeat.

2. Teaching Tool: Used in obstetric education to teach students and residents fetal heart rate auscultation and interpretation, training the next generation of healthcare providers.

3. Triage Assessment: Rapid assessment of fetal heart rate in patients presenting to labor and delivery with decreased fetal movement or other concerns, helping prioritize care.

4. Preoperative Verification: Confirms fetal heart rate prior to cerclage placement or other obstetric procedures, ensuring the baby is stable before interventions.

5. Research Applications: Used in studies requiring fetal heart rate data collection, contributing to scientific understanding of fetal development and pregnancy complications.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: Handheld or tabletop Doppler ultrasound device for fetal heart rate detection.
Common Names: Fetal Doppler, Fetal Heart Detector, Fetal Monitor, Doptone, Fetal Sonic Aid.
Components:
- Main Unit: Handheld or tabletop console with controls and display.
- Probe/Transducer: 2-3 MHz waterproof probe with integrated ultrasound crystal.
- Display: LCD showing fetal heart rate (numeric) and sometimes signal strength.
- Speaker: Built-in speaker for audible heart sounds; headphone jack available.
- Power Source: Rechargeable battery, AC power, or replaceable batteries.
Probe Frequencies: 2 MHz (deeper penetration, later gestation, obese patients), 3 MHz (better resolution, earlier gestation, thin patients).
Display Range: 30-240 bpm typical.

2. TECHNICAL & PERFORMANCE PROPERTIES

Ultrasound Technology: Continuous wave or pulsed wave Doppler detecting motion of fetal heart structures.
Output Display: Digital numeric display of fetal heart rate (averaged over 3-6 beats).
Audio Output: Amplified heart sounds through speaker; adjustable volume.
Auto-Correlation: Signal processing to reject maternal vessel noise and artifact.
Depth Penetration: Up to 15-20 cm depending on frequency and tissue characteristics.
Detection Threshold: Capable of detecting fetal heart activity from 10-12 weeks gestation; earlier in thin patients, later in obese or with retroverted uterus.
Battery Life: 2-8 hours continuous use depending on model.
Wall-Plug Operation: Continuous use capability for labor and delivery settings.

3. PHYSICAL & OPERATIONAL PROPERTIES

Handheld Unit Dimensions: 15-20 cm × 5-8 cm × 3-5 cm (6-8 × 2-3 × 1-2 inches).
Weight: 200-500 grams (7-18 ounces) depending on battery configuration.
Probe: 10-15 cm length, 2-3 cm diameter; with 1.5-2 meter cable.
Display: 2-4 cm high LCD with large numerals.
Controls: On/off, volume, probe selection (if multi-probe), freeze (select models).
Speaker: 1-2 watts; clear audio in quiet clinical environment.
Headphone Jack: 3.5 mm for private listening or noisy environments.
Probe Storage: Built-in probe holder or separate storage compartment.
Carrying Case: Padded case for transport; wall-mountable bracket available.

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: Class II medical device requiring FDA 510(k) clearance.
Intended Use: For detection of fetal heart rate during pregnancy and labor.
Ultrasound Safety: Output within FDA limits for diagnostic fetal use; mechanical index (MI) < 1.9, thermal index (TI) < 1.0.
Electrical Safety: Compliant with IEC 60601-1 for medical electrical equipment; Type BF applied part.
ALARA Principle: Device operates at lowest feasible output to obtain adequate signal.
Probe Disinfection: Waterproof probes allow cleaning with appropriate low-level disinfectant; probe covers available for specific indications.
Sterility: Probes non-sterile; not for intrauterine use.
EMC Compliance: IEC 60601-1-2 electromagnetic compatibility; immune to typical clinical interference.

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store in clean, dry environment in carrying case or on wall mount; protect probes from damage.
Battery Maintenance: Recharge after each use; maintain spare charged battery for continuous use settings.
Probe Care: Do not drop probes; inspect cable for damage; clean after each use with approved disinfectant wipe; do not immerse probe in liquids unless specified waterproof.
Cleaning: Wipe unit and probe with EPA-registered hospital disinfectant between patients.
Calibration: Annual calibration verification recommended per facility biomedical engineering protocol.
Inspection: Before each use, check probe cable, connector, and housing; verify audio output and display function.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: Real-time fetal heart rate detection and monitoring in outpatient obstetric clinics, hospital labor and delivery units, and prenatal care settings.
Gestational Age Considerations:
- 10-12 weeks: Earliest detection in ideal conditions.
- 12-14 weeks: Reliable detection in most patients with appropriate technique.
- 14-16 weeks: Consistent detection in nearly all patients.
- 16+ weeks: Routine use for all prenatal visits.
Technique:

Apply ultrasound gel to maternal abdomen.
Position probe suprapubically, angled toward pelvis.
Slowly sweep until fetal heart tones identified.
Adjust angle for optimal signal.
Count rate (displayed) or auscultate for 60 seconds.

Limitations: May be difficult in early gestation, maternal obesity, retroverted uterus, or with anterior placenta; requires ultrasound gel for acoustic coupling.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Ultrasound Safety: Follow ALARA principle (As Low As Reasonably Achievable); use minimum power and duration necessary. No known adverse effects at diagnostic output levels for fetal use.
Gel Use: Always use appropriate ultrasound gel; never use with dry probe.
Probe Pressure: Avoid excessive pressure on maternal abdomen, especially in early pregnancy.
Infection Control: Clean probe between each patient; use disposable probe covers if probe will contact mucous membranes or if patient has known infection.
Interpretation: Fetal heart rate must be interpreted by qualified healthcare providers; rates <110 or >160 bpm warrant further evaluation.
Maternal Signal Differentiation: Distinguish fetal heart rate (typically 110-160 bpm) from maternal vessel signal (rate equals maternal pulse).
Doppler Not for Home Use: These clinical-grade devices intended for trained healthcare providers; not for unsupervised home use.
EMI Caution: May be affected by strong electromagnetic fields; avoid use near MRI.

2. FIRST AID MEASURES

Inability to Detect Fetal Heart: Reposition patient; try different probe angle; use different frequency probe if available; if persistent absence after 12 weeks with previous detection, arrange urgent ultrasound.
Gel in Eyes: Flush with copious water; seek medical attention if irritation persists.
Equipment Malfunction: Discontinue use; return for service; document malfunction.
Maternal Discomfort: Reposition; reduce probe pressure.

3. FIRE FIGHTING MEASURES

Flammability: Plastic casing and components are combustible.
Extinguishing Media: For electrical fire, use CO₂ or dry chemical (Class C) extinguisher.
Battery Fire: Damaged lithium battery may ignite; use Class D extinguisher or sand.

Fetoheart Sonic Aid Doppler (clinic/hospital use)

Fetoheart Sonic Aid Doppler (clinic/hospital use)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Fetal Heart Rate Detection and Monitoring:

Primary Use: Provides real-time audible and visual display of fetal heart rate using Doppler ultrasound technology, allowing clinicians to assess fetal cardiac activity, rate, and rhythm during routine prenatal visits from as early as 10-12 weeks gestation.

How it helps: Gives obstetricians and midwives an immediate window into the baby’s well-being at every prenatal visit, providing objective evidence that the pregnancy is progressing normally and alerting them to any concerns that need further investigation.

2. Confirmation of Fetal Viability:

Primary Use: Rapid, non-invasive confirmation of fetal cardiac activity in first-trimester pregnancies, particularly valuable for patients with history of miscarriage, bleeding, or cramping where viability assessment is clinically indicated.

How it helps: Provides anxious parents and their doctors with immediate answers during moments of uncertainty, offering reassurance that the pregnancy is viable when there are concerns about miscarriage.

3. Intermittent Fetal Monitoring During Labor:

Primary Use: Used in hospital labor and delivery units for periodic assessment of fetal heart rate between contractions in low-risk pregnancies, providing audible feedback of fetal response to labor.

How it helps: Allows laboring mothers to maintain mobility and a less restrictive birth experience while still ensuring their baby is regularly checked for any signs of distress.

4. Non-Stress Test (NST) Administration:

Primary Use: Integrated with fetal monitors for non-stress testing in outpatient obstetric clinics, assessing fetal heart rate accelerations in response to fetal movement as an indicator of fetal well-being.

How it helps: Provides reassurance that a baby in a high-risk pregnancy is healthy and receiving enough oxygen, helping doctors make informed decisions about delivery timing.

5. Multiple Gestation Assessment:

Primary Use: Allows identification and monitoring of individual fetal heart rates in twin and higher-order multiple pregnancies, with experienced clinicians able to distinguish between fetuses.

How it helps: Helps clinicians caring for mothers expecting multiples ensure each baby is developing normally, providing individual attention to every fetus in the womb.

6. Fetal Presentation and Position Determination:

Primary Use: The point of maximal intensity of fetal heart sounds helps experienced practitioners determine fetal lie and presentation, particularly in later gestation.

How it helps: Gives clinicians valuable information about how the baby is positioned before delivery, helping them plan for a safe birth and anticipate any potential complications.

7. Post-Procedure Confirmation:

Primary Use: Used after amniocentesis, chorionic villus sampling, or external cephalic version to confirm continued fetal well-being and cardiac activity.

How it helps: Provides immediate reassurance after invasive procedures that the baby is tolerating the intervention well and that fetal heart activity remains normal.

SECONDARY & SUPPORTIVE USES

1. Patient Reassurance: Provides audible fetal heart sounds to expectant parents during prenatal visits, enhancing bonding and reducing anxiety by letting them hear their baby’s heartbeat.

2. Teaching Tool: Used in obstetric education to teach students and residents fetal heart rate auscultation and interpretation, training the next generation of healthcare providers.

3. Triage Assessment: Rapid assessment of fetal heart rate in patients presenting to labor and delivery with decreased fetal movement or other concerns, helping prioritize care.

4. Preoperative Verification: Confirms fetal heart rate prior to cerclage placement or other obstetric procedures, ensuring the baby is stable before interventions.

5. Research Applications: Used in studies requiring fetal heart rate data collection, contributing to scientific understanding of fetal development and pregnancy complications.

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: Handheld or tabletop Doppler ultrasound device for fetal heart rate detection.

Common Names: Fetal Doppler, Fetal Heart Detector, Fetal Monitor, Doptone, Fetal Sonic Aid.

Components:

Main Unit: Handheld or tabletop console with controls and display.

Probe/Transducer: 2-3 MHz waterproof probe with integrated ultrasound crystal.

Display: LCD showing fetal heart rate (numeric) and sometimes signal strength.

Speaker: Built-in speaker for audible heart sounds; headphone jack available.

Power Source: Rechargeable battery, AC power, or replaceable batteries.

Probe Frequencies: 2 MHz (deeper penetration, later gestation, obese patients), 3 MHz (better resolution, earlier gestation, thin patients).

Display Range: 30-240 bpm typical.

2. TECHNICAL & PERFORMANCE PROPERTIES

Ultrasound Technology: Continuous wave or pulsed wave Doppler detecting motion of fetal heart structures.

Output Display: Digital numeric display of fetal heart rate (averaged over 3-6 beats).

Audio Output: Amplified heart sounds through speaker; adjustable volume.

Auto-Correlation: Signal processing to reject maternal vessel noise and artifact.

Depth Penetration: Up to 15-20 cm depending on frequency and tissue characteristics.

Detection Threshold: Capable of detecting fetal heart activity from 10-12 weeks gestation; earlier in thin patients, later in obese or with retroverted uterus.

Battery Life: 2-8 hours continuous use depending on model.

Wall-Plug Operation: Continuous use capability for labor and delivery settings.

3. PHYSICAL & OPERATIONAL PROPERTIES

Handheld Unit Dimensions: 15-20 cm × 5-8 cm × 3-5 cm (6-8 × 2-3 × 1-2 inches).

Weight: 200-500 grams (7-18 ounces) depending on battery configuration.

Probe: 10-15 cm length, 2-3 cm diameter; with 1.5-2 meter cable.

Display: 2-4 cm high LCD with large numerals.

Controls: On/off, volume, probe selection (if multi-probe), freeze (select models).

Speaker: 1-2 watts; clear audio in quiet clinical environment.

Headphone Jack: 3.5 mm for private listening or noisy environments.

Probe Storage: Built-in probe holder or separate storage compartment.

Carrying Case: Padded case for transport; wall-mountable bracket available.

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: Class II medical device requiring FDA 510(k) clearance.

Intended Use: For detection of fetal heart rate during pregnancy and labor.

Ultrasound Safety: Output within FDA limits for diagnostic fetal use; mechanical index (MI) < 1.9, thermal index (TI) < 1.0.

Electrical Safety: Compliant with IEC 60601-1 for medical electrical equipment; Type BF applied part.

ALARA Principle: Device operates at lowest feasible output to obtain adequate signal.

Probe Disinfection: Waterproof probes allow cleaning with appropriate low-level disinfectant; probe covers available for specific indications.

Sterility: Probes non-sterile; not for intrauterine use.

EMC Compliance: IEC 60601-1-2 electromagnetic compatibility; immune to typical clinical interference.

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store in clean, dry environment in carrying case or on wall mount; protect probes from damage.

Battery Maintenance: Recharge after each use; maintain spare charged battery for continuous use settings.

Probe Care: Do not drop probes; inspect cable for damage; clean after each use with approved disinfectant wipe; do not immerse probe in liquids unless specified waterproof.

Cleaning: Wipe unit and probe with EPA-registered hospital disinfectant between patients.

Calibration: Annual calibration verification recommended per facility biomedical engineering protocol.

Inspection: Before each use, check probe cable, connector, and housing; verify audio output and display function.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: Real-time fetal heart rate detection and monitoring in outpatient obstetric clinics, hospital labor and delivery units, and prenatal care settings.

Gestational Age Considerations:

10-12 weeks: Earliest detection in ideal conditions.