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- Sep 8, 2002
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I just got the littman master cardio stethescope today. I noticed that it has a pinpoint sized hole in the diaphram. is this normal? I didn't recall seeing a hole in another steth i had been using.
bulldog said:I just got the littman master cardio stethescope today. I noticed that it has a pinpoint sized hole in the diaphram. is this normal? I didn't recall seeing a hole in another steth i had been using.
bulldog said:I just got the littman master cardio stethescope today. I noticed that it has a pinpoint sized hole in the diaphram. is this normal? I didn't recall seeing a hole in another steth i had been using.
*fatmike* said:Are you a medical student or a master of cardiology?
ms. a said:Mine's got one. My guess it that it's like every hollow toy that my daughter has - if there is even the slightest chance of liquid getting inside, they prove a easy escape route for it.
felipe5 said:hey guys, i have a question............and although I know an answer will be "look it up on a damn website", I was just curious as to whether or not one of can purchase individual parts of the stethoscope. My stethoscope was a hand-me-down, and the length of the scope's tube is a bit too short for me and I'd like a longer tube without shelling out $100+ for a new one....if so, has anyone ever done this?
bulldog said:I just got the littman master cardio stethescope today. I noticed that it has a pinpoint sized hole in the diaphram. is this normal? I didn't recall seeing a hole in another steth i had been using.
Firebird said:Yes, mine has a hole in it. I don't think it's a drain, though, as previously suggested? I would imagine it has to do with the diaphragm being tunable. When you press for the high pitched sounds, you create positive pressure. I have noticed when I listen to high frequency sounds, I can feel pressure increase in my ears. I would guess that the hole allows some of the pressure to escape. But it's just a guess.
Dr. Donkey said:Some tunable diaphragms have a tiny pinhole in the center of the disc. This is not a defect in the product, nor does it contribute to the tunable function. This hole is a result of a manufacturing process of the product. It also helps eliminate air pressure that was created in the system when pressing down on the chestpiece. This air pressure may be uncomfortable, especially if the user has a very good seal in their ear canals as a result of the soft sealing eartips. Because this was experienced mostly in the Master Cardiology and less so with other models, as of October 1997, the hole was eliminated in most models. It can still be found in the Master Cardiology, and the small side of the Cardiology III.
Dr. Donkey said:Some tunable diaphragms have a tiny pinhole in the center of the disc. This is not a defect in the product, nor does it contribute to the tunable function. This hole is a result of a manufacturing process of the product. It also helps eliminate air pressure that was created in the system when pressing down on the chestpiece. This air pressure may be uncomfortable, especially if the user has a very good seal in their ear canals as a result of the soft sealing eartips. Because this was experienced mostly in the Master Cardiology and less so with other models, as of October 1997, the hole was eliminated in most models. It can still be found in the Master Cardiology, and the small side of the Cardiology III.
felipe5 said:hey guys, i have a question............and although I know an answer will be "look it up on a damn website", I was just curious as to whether or not one of can purchase individual parts of the stethoscope. My stethoscope was a hand-me-down, and the length of the scope's tube is a bit too short for me and I'd like a longer tube without shelling out $100+ for a new one....if so, has anyone ever done this?