Smart recognition apparatus and method

• US 20040243120A1
• Filed: 01/27/2004
• Published: 12/02/2004
• Est. Priority Date: 12/10/1997
• Status: Active Grant

• Current Assignee: Covidien AG (Medtronic Plc)
• Original Assignee: Sherwood Services AG
• Inventors: Orszulak, James Henry, Dobbins, Gary Lee Jr.
• Granted Patent: US 7,044,949 B2
• Time in Patent Office: Days
• US Class Current: 606/34
• CPC Class Codes: A61B 18/12 by passing a current through the tissue to be heated, e.g. high-frequency current
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 2017/00482 with a code
• CPC Class Codes: A61B 2018/00178 Electrical connectors
• CPC Class Codes: A61B 2018/00988 Means for storing information, e.g. calibration constants, or for preventing excessive use, e.g. usage, service life counter
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61B 90/90 Identification means for patients or instruments, e.g. tags
• CPC Class Codes: A61B 90/98 using electromagnetic means, e.g. transponders
• CPC Class Codes: G02B 2006/4297 having protection means, e.g. protecting humans against accidental exposure to harmful laser radiation
• CPC Class Codes: G02B 6/3895 identification of connection, e.g. right plug to the right socket or full engagement of the mating parts keying element on the plug or adapter G02B6/3831; keying element on the ferrule G02B6/3851; keying element for electrical connection H01R13/64

Abstract

A qualifying connection for an instrument attaches to a source of electrosurgery energy and to the instrument and has first and second parts coupled to the instrument and the source, respectively. Optical couplings on the connection transmit invisible energy to identify the instrument and are proximate on the first and second parts. A light modifier on the first part is proximal to the second part for modification of radiation in the infrared wavelengths so infrared transmitters encode signals and non-contact coded proximity detectors on the second part are the coupled detectors. Mechanical attachments include conjugating male and female portions which physically extend between the parts and matingly engage. An identifying circuit couples to the second part and responds to invisible light optically communicated across the couplings for verifying the type of instrument connected by the cable to the source. A method of using the connection has steps including juxtaposing and conjugating the parts with attachments and couplings for transmitting invisible optical energy to identify the instrument. The method includes modifying the invisible optical energy with geographically disposed proximate couplings of the parts when the attachments engage and the couplings are proximate. Passing and assessing signals of the modified energy are transmitted through the connection and to an identifying circuit in the source.

Claims

1. A qualifying connection for a recognition apparatus for identifying a type of surgical instrument attached to a surgical generator, the qualifying connection comprising:

a plug having at least one mechanical interface which matingly engages a corresponding mechanical interface disposed on the surgical generator;

a first optical coupling disposed on the plug and a second optical coupling disposed on the generator, the first and second optical couplings optically communicating upon mating engagement of the plug and the generator, the first and second optical couplings, when arranged for optical communication, communicating identifying information to the generator relating to the type of surgical instrument.

2. A qualifying connection according to claim 1, further comprising:

an identifying circuit disposed in the generator and in electrical communication with at least one optical coupling which differentiates the type of surgical instrument attached to the generator and which provides a signal to the generator upon verification of the type of surgical instrument attached thereto.

3. A qualifying connection according to claim 2, further comprising:

a switch in electrical communication with the identifying circuit which regulates the electrosurgical energy from the generator to the instrument in accordance with the type of surgical instrument attached to the generator.

4. A qualifying connection according to claim 1 wherein the optical coupling on the plug includes a light modifier which modifies the radiation of the light for thereafter receipt by the optical coupling on the generator, the modified radiation of light being indicative of the type of surgical instrument connected to the generator.

5. A qualifying connection according to claim 4 wherein infrared transmitters are positioned on the surgical generator proximal the light modifier for optical communication of the light therethrough.

6. A qualifying connection according to claim 4 wherein the light modifier of the optical coupling on the plug includes one of a diffuse surface, a coating, a matrix of apertures and a pre-selective light responsive material.

7. A qualifying connection according to claim 6 wherein the optical coupling of the generator includes at least one light transmitter and the light modifier on the plug alters the optical energy transmitted from the at least one transmitter.

8. A qualifying connection according to claim 2 wherein the identifying circuit includes a memory for controlling the activation or deactivation of electrosurgical energy according a predetermined criteria for the type of instrument identified.

9. A qualifying connection according to claim 1 further comprising a display indicator which provides visual feedback as to the type and mechanical mating integrity of the surgical instrument attached to the generator.

10. A qualifying connection according to claim 1 wherein at least one of the mechanical interfaces of the plug and the corresponding mechanical interface on generator include fluid passages for delivering one of suction and irrigation to the surgical instrument.

11. A qualifying connection according to claim 1 wherein the qualifying connection communicates treatment information from the surgical instrument through at least one of the optical couplings regarding the status of tissue being treated.

12. A qualifying connection according to claim 1 wherein the qualifying connection communicates parametric information from the surgical instrument through at least one of the optical couplings regarding at least one of tissue temperature, thermal spread, tissue eschar and tissue desiccation.