Smart recognition apparatus and method

• US 6,402,743 B1
• Filed: 03/17/2000
• Issued: 06/11/2002
• Est. Priority Date: 12/10/1997
• Status: Expired due to Term

• Current Assignee: Covidien AG (Medtronic Plc)
• Original Assignee: Sherwood Services AG
• Inventors: Orszulak, James Henry, Dobbins, Gary Lee Jr.
• Primary Examiner(s): GIBSON, ROY DEAN
• Application Number:
  US09/528,380
• Time in Patent Office: 816 Days
• Field of Search: 606/34, 606/37, 606/1, 606/4, 606/10-12, 606/41-52, 607/1, 607/98, 607/100-102, 607/115
• 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 physically extending between the parts for mating engagement. 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 trough the connection and to an identifying circuit in the source.

Claims

1. A surgical instrument having a first connection part for connection to a second connection part of a generator, the generator adapted to apply energy to the surgical instrument and having an identifying circuit associated therewith responsive to modified light communicating through the first and second connection parts to identify the surgical instrument connected to the generator, the second connection part including a light supply and a light receptor wherein the light supply transmits a non-focused light beam to the first connection part and the light receptor receives the modified non-focused light beam from the first connection part, the surgical instrument comprising:

a first optical coupling on the first connection part, the first optical coupling including a light modifier in the form of a diffuse surface which modifies the non-focused light beam received from the light supply of the second connection part, the diffuse surface including responsive medium having an identification code indicative of the surgical instrument, the first connection part insertable into the second connection part so that the surgical instrument can be identified in a non-contact manner by the identifying circuit associated with the generator.

2. The instrument according to claim 1, wherein the light responsive medium includes a coating for modifying the light energy.

3. The instrument according to claim 1, wherein the light responsive medium includes a matrix of holes for modifying the light energy.

4. The instrument according to claim 1, wherein the light modifier changes the energy transmitted from a plurality of infrared transmitters of the second connection part.

5. The instrument according to claim 1, wherein the light modifier includes a plurality of non-contact detectors.

6. The instrument according to claim 1, wherein the first connection part further includes a male mechanical attachment for reception in a female portion on the second connection part to position the first optical coupling of the first connection part and a second optical coupling of the second connection part in proximity.

7. The instrument according to claim 1, wherein the optical energy is invisible infrared optical energy.

8. The instrument according to claim 1, wherein when the first connection part is connected to the second connection part the light modifier is located proximate the light supply and light receptor of the second connection part.

9. The instrument according to claim 8, wherein the light modifier changes the energy transmitted from a plurality of infrared transmitters of the second connection part.

10. The instrument according to claim 9, wherein the light modifier includes a plurality of non-contact detectors.

11. The system according to claim 1, wherein the identification code of the first connection part has an Nth bit code identification unique to the type of surgical instrument.

12. The system according to claim 10, wherein the identification code of the first connection part has an Nth bit code identification unique to the type of surgical instrument.

13. The system according to claim 1, wherein the first connection portion is in the form of a plug and an Nth bit code identity is located on the plug.

14. The system according to claim 12, wherein the first connection portion is in the form of a plug and the Nth bid code identity is located on the plug.

15. A method of identifying a surgical instrument for determination of application of energy comprising:

providing a first connection part having a light modifier in the form of a diffuse surface corresponding to a predetermined code particular to the type of instrument;

inserting the first connection part into a second connection part of a generator, the second connection part having a plurality of transmitters for transmitting an unfocused beam of light to the diffuse surface, and the first connection part being inserted so the diffuse surface and the transmitters are in proximity;

transmitting optical energy from the transmitters of the second connection part to the diffuse surface of the first connection part;

processing the modified light in the generator to determine the type of surgical instrument connected to the generator; and

controlling the activation and deactivation of the generator in response to the determination of the type of surgical instrument.

16. A method according to claim 15, wherein the step of transmitting optical energy includes transmitting optical energy to a coating on the diffuse surface.

17. A method according to claim 15, wherein the step of transmitting optical energy includes transmitting optical energy to a matrix of holes.

18. A method according to claim 15, wherein the step of inserting the first connection part includes inserting a male mechanical attachment of the first connection part into a female portion on the second connection part.