...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 |
| 7806870 | Elastically deformable surgical access device having telescoping guide tube A surgical access device is disclosed that includes an access port having an elongated body with opposed proximal and distal end portions and defining a longitudinal axis, the body having a central lumen extending there through and having a resilient bulb portion fo... | 10/05/2010 |
| 7413559 | Gas flow trocar arrangement A trocar assembly for use in surgery in a patient, comprising an elongated outer tubular member having a first or proximal end and a second or distal end. The proximal end has a housing enclosing a fluid pressure chamber therein. The distal end of the outer tubular ... | 08/19/2008 |
| 7338473 | Pneumoseal trocar arrangement A cannula assembly for the maintenance of an operative pneumoperitoneum in a patient comprising an elongated cannula having a proximal end and a distal end. A removable valve is securely arranged in the proximal end of the cannula to provide a seal and minimize the ... | 03/04/2008 |
| 7285112 | Gas flow trocar arrangement A trocar assembly for use in surgery in a patient, comprising an elongated outer tubular member having a first or proximal end and a second or distal end. The proximal end has a housing enclosing a fluid pressure chamber therein. The distal end of the outer tubular ... | 10/23/2007 |
| 7182752 | Continuous gas flow trocar assembly A trocar assembly for providing a pressurized insufflation fluid into a patient cavity and for providing sealable access to the patient cavity by a surgical instrument. The assembly comprises an inner tubular member having a proximal end and a distal end. An outer t... | 02/27/2007 |