Arthroscopic surgical practice

• US 5,010,876 A
• Filed: 06/02/1986
• Issued: 04/30/1991
• Est. Priority Date: 06/02/1986
• Status: Expired due to Term

• Current Assignee: Smith & Nephew Holdings Incorporated (Smith & Nephew PLC)
• Original Assignee: Smith & Nephew Holdings Incorporated (Smith & Nephew PLC)
• Inventors: Dowdy, Clifford A., Milner, Larry B., Henley, Gary D.
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US06/869,595
• Time in Patent Office: 1,793 Days
• Field of Search: 128/3, 128/4, 128/5, 128/6, 128/7, 128/11, 358/98, 206/438
• US Class Current: 600/112
• CPC Class Codes: A61B 1/042 characterised by a proximal camera, e.g. a CCD camera
• CPC Class Codes: A61B 1/051 Details of CCD assembly
• CPC Class Codes: A61B 1/317 for bones or joints, e.g. osteoscopes, arthroscopes
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 46/10 specially adapted for instruments, e.g. microscopes
• CPC Class Codes: H04N 23/54 Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
• CPC Class Codes: H04N 23/555 for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera

Abstract

Method and apparatus for providing a disposable, sterile cable connector and camera head for use in endoscopic surgery. A novel camera head design is disclosed in combination with the requisite connector cable, and such camera head/cable is adapted for initial sterility and sterile packaging for subsequent singular use and disposal after surgery. The camera head consists of a charge-coupled device type of image sensor assembled in a compact camera head of a type that can be completely sterilized, sealed and packaged for prolonged shelf storage and eventual disposable usage.

Claims

1. In combination with video monitor, camera control unit, light source and scope instrument for imaging surgical activity, a disposable camera device comprising:

an imaging device including control circuitry;

a sterilized connector cable of pre-selected length connected to said control circuitry and extending to an external plug connector for connection to said camera control unit;

a sterilized camera housing means for containing said imaging device and control circuitry in sealed, fluid-tight disposition, said camera housing means consisting of a generally cylindrical housing bisected to define a first half-housing having sidewall, base portion and sleeve portion, and a second half-housing having sidewall, base portion and sleeve portion for mating engagement as said first and second half-housings are juxtaposed; and

sterile container means for enclosing and maintaining said camera housing means and connector cable in sterile storage until opening of the container means for exposure during usage.

2. An article of manufacture comprising:

an imaging device including electronic control circuitry;

a sterilized connector cable having multiple conductor and being of pre-selected length having a plug connector on one end and having the other end connected to said control circuitry;

a sterilized housing means retaining said imaging device and control circuitry in fluid-tight, sealed connection to said connector cable, said housing means consisting of a generally cylindrical housing bisected to define a first half-housing having side wall, base portion and sleeve portion, and a second half-housing having side wall, base portion and sleeve portion for mating engagement as said first and second half-housings are juxtaposed; and

isolation means maintaining said imaging device, connector cable and housing means sterile until disposable usage.

3. An article of manufacture as set forth in claim 2 which is further characterized to include:

a first joinder face including sealing means formed along the bisection on the first half-housing; and

a second joinder face including sealing means formed along the bisection on the second half-housing.

4. An article of manufacture as set forth in claim 3 wherein said sealing means comprises:

a ring formation extending along one of said first and second joinder faces; and

a mating ridge formation extending along the other of said first and second joinder faces.

5. An article of manufacture as set forth in claim 4 which further comprises:

plural doweling pins and holes disposed in spaced, mating positions along each of said first and second joinder faces.

6. An article of manufacture as set forth in claim 3 which further includes:

plural doweling pins and holes disposed in spaced, mating positions along each of said first and second joinder faces.

7. An article of manufacture as set forth in claim 2 which further includes:

high temperature, fluid-tight sealing compound applied between the connector cable and said first and second half-housing sleeve portions.

8. An article of manufacture as set forth in claim 2 wherein said cylindrical housing comprises:

a light entry bore formed generally axially between said first and second half-housing sidewalls in alignment with said imgaging device; and

means for securing a scope instrument to said housing in alignment with said light entry bore.

9. An article of manufacture as set forth in claim 8 wherein said means for securing comprises:

threads formed in said light entry bore for receiving said scope instrument in secure threaded engagement.