# US 2014/0360305 A1 · Rotation preserving quick connect device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0360305 A1 - Document ID: US20140360305A1 - Status: Published application - Kind: A1 - Application number: 14/299,082 - Filed: 2014-06-09 - Published: 2014-12-11 - Earliest claimed: 2013-06-07 - Assignees: The Johns Hopkins University - Applicants: The Johns Hopkins University - Inventors: Kevin Olds; Russell H. Taylor - Web page: https://patentgrep.com/patent/US20140360305A1 ## CPC - B25J 15/0019: {End effectors other than grippers} - A61B 34/30: Surgical robots - B25J 15/0441: {having vacuum or magnetic means} - A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)} - A61B 2017/00876: {magnetic} - B23B 31/28: using electric or magnetic means in the chuck - Y10S 901/41: Tool - Y10T 74/20305: Robotic arm - Y10T 279/23: with magnetic or electrostatic means - B25J: MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES ({manipulators specially adapted for use in surgery A61B34/70; manipulators used in cleaning hollow articles B08B9/04}; manipulators associated with rolling mills B21B39/20; manipulators associated with forging machines B21J13/10; {manipulators associated with picking-up and placing mechanisms B23P19/007}; means for holding wheels or parts thereof B60B30/00; {vehicles with ground-engaging propulsion means, e.g. walking members B62D57/02, B62D57/032; devices for picking-up and depositing articles or materials between conveyors B65G47/90, B65G47/91; manipulators with gripping or holding means for transferring packages B65H67/065}; cranes B66C; {manipulators used in the protection or supervision of pipe-line installations F17D5/00; walking equipment adapted for nuclear steam-generators F22B37/006}; manipulators specially adapted for, or associated with, nuclear reactors G21C; {apparatus used for handling wafers during manufacture or treatment of semiconductor H10P72/50}) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - B23B: TURNING; BORING (arrangements for copying or controlling B23Q) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The present invention is directed to a tool holder for use with a surgical robot. The tool holder includes, a rotor fixed to the tool shaft, and a stator fixed to the robot. The stator includes a magnet, and a bearing surface. The rotor includes a magnetic material that attaches securely to the tool shaft, such that the tool is in the center of the rotor. The rotor rotates against the bearing surface on the stator, allowing the tool to rotate about its axis. To exchange tools, the user exerts force on the tool until the holding force of the magnet is exceeded and the tool detaches from the stator. A new tool is introduced into the vicinity of the stator such that the magnet attracts the magnetic material on the rotor. The present invention eliminates the need to slide the tool through a shaft of the tool holder. ## Claims ### Claim 1 A tool holder for use with a surgical robot, comprising: a rotor configured to be coupled to a surgical tool, imaging device, or implant, such that the rotor is releasably coupled to the surgical tool, imaging device, or implant; and a stator including a housing, wherein said stator further includes a magnet coupled to the housing and a bearing surface. ### Claim 2 (depends on 1) The tool holder of claim 1 wherein the rotor further comprises a magnetic material, such that the magnetic material facilitates the coupling of the rotor and the surgical tool. ### Claim 3 (depends on 2) The tool holder of claim 2 wherein the magnetic material further comprises a material configured to be magnetically attracted to the magnet of the stator. ### Claim 4 (depends on 1) The tool holder of claim 1 wherein the rotor further comprises a rotor magnet configured such that the magnet facilitates the coupling of the rotor and the surgical tool. ### Claim 5 (depends on 4) The tool holder of claim 4 further comprising the rotor magnet being configured such that it is magnetically attracted to the magnet of the stator. ### Claim 6 (depends on 1) The tool holder of claim 1 wherein the bearing surface is defined by the housing of the stator. ### Claim 7 (depends on 1) The tool holder of claim 1 wherein the bearing surface comprises a first bearing surface and a second bearing surface. ### Claim 8 (depends on 1) The tool holder of claim 1 wherein the bearing surface can be adjusted in size. ### Claim 9 (depends on 1) The tool holder of claim 1 wherein the bearing surface is coupled to the housing. ### Claim 10 (depends on 7) The tool holder of claim 7 wherein the rotor is configured to nest, at least partially between the first and second bearing surfaces. ### Claim 11 A system for robotic surgery comprising: a surgical robot; a tool holder for use with the surgical robot, wherein the tool holder comprises: a rotor configured to be coupled to a surgical tool, imaging device, or implant, such that the rotor is releasably coupled to the surgical tool, imaging device, or implant; and a stator including a housing, wherein said stator further includes a magnet coupled to the housing and a bearing surface. ### Claim 12 (depends on 11) The system for robotic surgery of claim 11 further comprising the tool holder being permanently integrated into the surgical robot. ### Claim 13 (depends on 11) The system for robotic surgery of claim 11 further comprising the tool holder being removable from the surgical robot. ### Claim 14 (depends on 11) The system for robotic surgery of claim 11 wherein the rotor further comprises a magnetic material, such that the magnetic material facilitates the coupling of the rotor and the surgical tool. ### Claim 15 (depends on 14) The system for robotic surgery of claim 14 wherein the magnetic material further comprises a material configured to be magnetically attracted to the magnet of the stator. ### Claim 16 (depends on 11) The system for robotic surgery of claim 11 wherein the rotor further comprises a rotor magnet configured such that the magnet facilitates the coupling of the rotor and the surgical tool. ### Claim 17 (depends on 16) The system for robotic surgery of claim 16 further comprising the rotor magnet being configured such that it is magnetically attracted to the magnet of the stator. ### Claim 18 (depends on 11) The system for robotic surgery of claim 11 wherein the bearing surface is defined by the housing of the stator. ### Claim 19 (depends on 11) The system for robotic surgery of claim 11 wherein the bearing surface comprises a first bearing surface and a second bearing surface. ### Claim 20 (depends on 11) The system for robotic surgery of claim 11 wherein the bearing surface can be adjusted in size. ### Claim 21 (depends on 11) The system for robotic surgery of claim 11 wherein the bearing surface is coupled to the housing. ### Claim 22 (depends on 19) The system for robotic surgery of claim 19 wherein the rotor is configured to nest, at least partially between the first and second bearing surfaces.