Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 5042475 | Hinged tracheostomy tube obturator A plastic obturator for use in intubating tracheostomy tubes, particularly including a non-constant radius cannula, which is made of a single-piece plastic flexible member having a flexible shaft including a substantially flat strip member and a plurality... | 08/27/1991 |
| 4817598 | Tracheostomy tube with ring pull removable inner cannula A removable inner cannula is provided with grooved-ribbed locking member end for snap-fit interconnection inside an outer cannula. The inner cannula includes a ring-pull grasping member associated with the locking member which is easily accessible for wit... | 04/04/1989 |
| 4637388 | Tracheal tube obturator with reversible tip An obturator especially for use as a part of a tracheal tube assembly permits the tracheal tube to have a squared off, unbeveled, distal end with an annular, circular rim of predetermined diameter which easily passes through the vocal cords. The obturator... | 01/20/1987 |
| 4193174 | Lever and fulcrum clamping assembly The present invention relates to a one-piece tubular clamping assembly formed from a plastic type material and comprising a first clamping arm engageable with a flange positioned on a second clamping arm to create a unique lever and fulcrum structure capa... | 03/18/1980 |
| 4178939 | Visual indicator for cuff-type catheter Apparatus for visually indicating the degree of inflation of an inflatable cuff surrounding a catheter which is adapted to be inserted into a body passageway. The apparatus comprises a hollow-walled tubular member formed with a plurality of ridges and val... | 12/18/1979 |
