Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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US Patent 3982533 - Insufflation apparatus
US Patent Issued on September 28, 1976
Estimated Patent Expiration Date:
September 28, 1993Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
September 28, 1993Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractThe apparatus, used for introducing limited quantities of carbon dioxide into the human body for operational purposes, particularly laparoscopy, includes a control device for delivering the carbon dioxide, a connecting nipple on the control device for connecting a flexible tubing to a Veress needle introducable into the body and a pressure gauge for indicating the pressure present in the body cavity. A second connection nipple is provided on the control device and connected by a nipple to the pressure gauge. The second connection nipple is connected by a further flexible tubing either to a dual Veress needle or to a second single Veress needle, so that the pressure gauge is directly connected with the body cavity rather than through the operative Veress needle. | InventorAssigneeApplicationNo. 05/608163 filed on 08/27/1975US Classes:604/26, Gas injected into body canal or cavity137/557, Fluid pressure responsive indicator, recorder or alarm604/118, Having means for varying, regulating, indicating, or limiting injection pressure or aspirating suctionD24/111Infusion or irrigation pump (e.g., dental irrigation unit, powered douche unit, etc.) (7)ExaminersPrimary: Michell, Robert W.Assistant: Recla, Henry J. Attorney, Agent or FirmUS Patent References2001638, 3794026, 3870072, 3885590International ClassesA61B 5/03 (20060101)A61B 1/12 (20060101) A61M 13/00 (20060101) Foreign Application Priority Data1975-03-14 DT |
