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Harvey DLX Triple Head 71 cm (28\) Black

Harvey DLX Triple Head 71 cm (28\) Black

Welch Allyn

Diagnostic & Monitoring Equipment
  • Not made with natural rubber latex.
  • Designed and marketed as a diagnostic medical device (acoustic stethoscope) for professional healthcare use.
  • Meets manufacturer’s internal quality and performance standards for cardiology Grade acoustic stethoscopes.
Cardiology Stethoscope

Description

The Welch Allyn Harvey DLX Triple Head is a full-range cardiology/pulmonary stethoscope with 28\ (71 cm) dual-lumen latex-free tubing and a rotatable triple-head brass chestpiece (low-frequency bell, adult flat diaphragm and pediatric corrugated diaphragm), designed to accentuate important cardiac, pulmonary and vascular sounds without relying on difficult variable-pressure techniques.

Bnefits

  • Full-range cardiology and pulmonary stethoscope for detailed auscultation of cardiac, pulmonary and vascular sounds.
  • Triple-head brass chestpiece with bell, adult flat diaphragm and pediatric corrugated diaphragm for flexible frequency selection.
  • Dual-bore (dual-lumen) tubing provides two uninterrupted sound channels, improving acoustic sensitivity and channel separation.
  • Trumpet brass chestpiece construction and optimally weighted design enhance clarity of low-, medium- and high-frequency heart sounds and murmurs.
  • Rotatable binaurals and interchangeable comfort-sealing ear tips help achieve a secure, comfortable acoustic seal.
  • Not made with natural rubber latex, reducing risk for users or patients with latex sensitivity.
  • Triple-leaf binaural spring encased in polyurethane allows headset size adjustment while helping prevent breakage.
  • 10-year warranty from the manufacturer supports long-term clinical use and durability.

Indications

  • Auscultation during physical examination for assessment of heart sounds, murmurs and extra cardiac sounds in adult and pediatric patients.
  • Auscultation of pulmonary sounds such as breath sounds, wheezes and crackles.
  • Auscultation of vascular sounds, including bruits and blood flow characteristics.
  • General diagnostic use by physicians, nurses, cardiologists and other trained healthcare professionals in clinical, hospital and educational settings.

Composition

  • Trumpet brass triple-head chestpiece with low-frequency bell, adult flat diaphragm and pediatric corrugated diaphragm.
  • Chrome-plated brass chestpieces and binaurals.
  • Dual-bore (dual-lumen) latex-free tubing, 71 cm (28") length.
  • Triple-leaf binaural spring encased in polyurethane for adjustable tension and added durability.
  • Soft and hard interchangeable comfort-sealing eartips in multiple sizes.
  • Polycarbonate diaphragm components (flat and corrugated diaphragms).

Formulation

  • Device type: full-range cardiology/pulmonary acoustic stethoscope.
  • Head style: rotatable triple-head with bell, flat diaphragm and corrugated diaphragm.
  • Tubing style: dual-lumen tube delivering separate sound channels to each ear.
  • Length: approximately 71 cm (28") overall tubing length.
  • Acoustic performance: cardiology-grade acoustics optimized for low-, medium- and high-frequency heart and lung sounds.

Packaging

  • Unit carton containing one Welch Allyn Harvey DLX Triple Head stethoscope with black dual-lumen tubing (28"/71 cm).
  • Includes assorted soft and hard eartips and instructions for use (IFU); accessory kits and replacement parts are available separately from the manufacturer.

Usage

  • Select and attach appropriately sized soft or hard eartips to the binaurals; insert eartips into the ears pointing slightly forward to align with the ear canals.
  • Adjust the headset by gently squeezing or spreading the binaurals so that the stethoscope sits comfortably and forms an effective acoustic seal.
  • Rotate the triple-head chestpiece to select the desired side (bell, flat diaphragm, or corrugated diaphragm) indicated by the index marker.
  • Use the bell primarily for low- to medium-frequency heart sounds and murmurs; use the flat diaphragm for higher-frequency heart sounds and lung sounds; use the corrugated diaphragm for enhanced low-frequency gallops, rumbles and certain murmurs.
  • Place the active side of the chestpiece firmly on bare skin over the area to be examined (e.g., precordium, lung fields, arteries) and listen for characteristic sounds.
  • Avoid excessive pressure that can distort low-frequency sounds, especially when using the bell.
  • Clean and disinfect the chestpiece and eartips between patients according to institutional infection-control policies and the manufacturer’s instructions for use.

Contraindications

  • No specific clinical contraindications are listed by the manufacturer for use on intact skin.
  • Avoid use on open wounds, severely compromised skin or areas where contact pressure from the chestpiece is not recommended.
  • Use caution in patients with known sensitivities to any contact materials other than latex, although the device is not made with natural rubber latex.
  • Follow standard institutional precautions for infection control when using on patients with transmissible infections.

Adverse Effects

  • Potential temporary discomfort or tenderness of the external ear canal from poorly fitted or over-tightened eartips.
  • Possible skin irritation or pressure marks at the chestpiece contact area in individuals with very sensitive skin or prolonged pressure.
  • Risk of cross-contamination or infection transmission between patients if the chestpiece and eartips are not adequately cleaned and disinfected between uses.
  • Small parts such as eartips may pose a choking hazard if detached and accidentally ingested.

Storage Conditions

  • Store the stethoscope in a cool, dry place at room temperature when not in use.
  • Avoid prolonged exposure to extreme heat or cold, solvents, oils and direct sunlight, which may damage tubing or plastic components.
  • Do not autoclave the stethoscope and do not immerse the entire device in liquid; clean using approved disinfectant wipes or solutions according to the instructions for use.
  • Keep the stethoscope in its case or hung in a manner that prevents kinking or sharply bending the tubing.

Duration

Used intermittently during physical examination and monitoring; duration is limited to the length of the auscultation procedure.

Onset

Immediate acoustic transmission of body sounds during auscultation when the chestpiece and eartips are correctly positioned.

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