Stethoscope

PAT. NO.

Title

151

4,823,906

Stethoscope having a body contact piece provided with two alternatively employed auscultation heads

152

4,821,327

Acoustical stethoscope with electrical filter

153

4,802,550

Chrono-stethoscope

154

4,783,814

Stethoscope having pseudostereophonic binaural enhancement

155

4,783,813

Electronic sound amplifier stethoscope with visual heart beat and blood flow indicator

156

4,776,426

Stethoscope

157

4,770,270

Stethoscope chestpiece with a sound conveying indexing detent

158

4,763,663

Esophageal stethoscope and vital signs monitor system

159

4,706,777

Stethoscope

160

4,672,975

Stethoscope with image of periodically expanding and contracting heart

161

4,669,572

Stethoscope

162

4,633,971

Stethoscope with high frequency filter

163

4,619,268

Esophageal stethoscope and vital signs monitor system

164

4,618,986

Electronic stethoscope

165

4,598,417

Electronic stethoscope

166

4,577,638

Esophageal stethoscope

167

4,569,413

Enhanced audiotransmission stethoscope

168

4,534,058

Electronic stethoscope with automatic power shut-off

169

4,528,690

Compact hybrid stethoscope

170

4,502,562

Stethoscope with removable insert

171

4,498,188

Electronic stethoscope for monitoring the operation of a prosthetic valve implanted in a patient's heart

172

4,497,124

Stethoscope identification badge

173

4,484,583

Esophageal stethoscope

174

4,475,619

Stethoscope with floating diaphragm

175

4,440,258

Tunable stethoscope

176

4,438,772

Differential stethoscope

177

4,424,815

Stethoscope-type recording system with stretched-in-time playback

178

4,406,346

Stethoscope with one-handed headset operation

179

4,401,125

Stethoscope securing pad

180

4,387,784

Stethoscope with improved resonant cavity amplification

181

4,377,727

Stethoscope having means for measuring pulse frequency

182

4,331,155

Digital cuff apparatus for determining blood pressure without use of a stethoscope

183

4,299,303

Noise attenuating stethoscope

184

4,282,678

Toy to simulate heartbeats and a stethoscope

185

4,270,627

Stethoscope with probe sound pick-up and resonant cavity amplification

186

4,254,302

Electronic stethoscope

187

4,239,089

Stethoscope chestpiece

188

4,218,584

Stethoscope for use on a horse

189

4,212,368

Angularly related dual stethoscope head

190

4,200,169

Stethoscope

191

4,177,871

Toy stethoscope

192

4,170,717

Electronic stethoscope

193

4,072,822

Two-way stethoscope for direct and amplified sound

194

4,071,694

Stethoscope

195

4,064,965

Stethoscope

196

4,011,925

Stethoscope

197

4,007,806

Heated stethoscope

198

3,989,895

Stethoscope transducer

199

3,951,230

Multi-sound chamber stethoscope

200

3,938,615

Stethoscope consisting of a stethoscope chest piece and a sound mixer

• Stethoscope having a light source
• Stethoscope cleansing device and method
• Stethoscope with pulse rate display
• Multi-sound chamber stethoscope