SURGICAL ROBOTIC ARM SUPPORT SYSTEMS AND METHODS OF USE
20170071693 ยท 2017-03-16
Inventors
- Eric Taylor (East Hampton, CT, US)
- Josh Snow (Clinton, CT, US)
- Peter Hathaway (Lebanon, CT, US)
- Michael Stow (Hamden, CT, US)
- Russell Pribanic (Roxbury, CT, US)
- Andrew Miesse (Durham, CT, US)
- Christopher Switalski (Suffield, CT, US)
- Michael Zemlok (Prospect, CT)
- Jason Iceman (Cheshire, CT, US)
Cpc classification
A61B90/90
HUMAN NECESSITIES
B25J9/08
PERFORMING OPERATIONS; TRANSPORTING
B25J9/009
PERFORMING OPERATIONS; TRANSPORTING
Y10S901/27
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B25J9/0009
PERFORMING OPERATIONS; TRANSPORTING
Y10S901/09
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B25J19/0045
PERFORMING OPERATIONS; TRANSPORTING
B25J9/1669
PERFORMING OPERATIONS; TRANSPORTING
International classification
A61B90/50
HUMAN NECESSITIES
B25J9/00
PERFORMING OPERATIONS; TRANSPORTING
B25J9/08
PERFORMING OPERATIONS; TRANSPORTING
B25J19/00
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A surgical robotic arm support system may include a base and at least one post and/or a connection for coupling a robot arm to the support system. The base may be configured to at least partially surround a surgical table. The at least one post may have a first end supported on the base and a second end configured to support a robotic arm. The at least one post may be configured to be coupled to a surgical table. The connection may support a mechanical and/or electrical connectivity between the support system and a coupled robot arm. Electrical connectivity may be configured to identify at least one of the robot arm connections to which at least one robot arm is connected. Each robot arm connection may be configured to maintain a portion of a connected robot arm at a predetermined position from the base.
Claims
1. A surgical robotic arm support system, comprising: a base configured to at least partially surround a surgical table; a plurality of robot arm connections on the base, each robot arm connection configured to maintain a portion of a connected robot arm at a predetermined position from the base; and an electrical connectivity configured to identify at least one of the robot arm connections to which at least one robot arm is connected.
2. The surgical robotic arm support system according to claim 1, wherein each robot arm connection includes a mechanical connectivity restricting movement of at least part of the connected robot arm relative to the base.
3. The surgical robotic arm support system according to claim 2, wherein the electrical connectivity is disposed between the connected robot arm and the base.
4. The surgical robotic arm support system according to claim 1, further comprising: a memory configured to store location information of the plurality of robot arm connections; and a processing unit configured to calculate a position of at least two robot arms connected to different robot arm connections from the stored location information.
5. The surgical robotic arm support system according to claim 4, wherein the processing unit is further configured to align a movement of an input device of the surgical robotic arm support system with a corresponding movement of an instrument affixed to a robotic arm or a displayed image from a camera coupled to one of the robot arms based on the calculated position.
6. The surgical robotic arm support system according to claim 1, wherein the electrical connectivity is configured to identify at least one of the robot arm connections from a unique identifier associated with the at least one robot arm connection.
7. The surgical robotic arm support system according to claim 1, wherein the electrical connectivity is configured to detect a robot arm coupling.
8. The surgical robotic arm support system according to claim 7, wherein the electrical connectivity is further configured to identify a particular robot arm coupled to the at least one robot arm connection.
9. The surgical robotic arm support system according to claim 1, wherein the base includes at least one modular link selectively attachable to at least one other modular link.
10. The surgical robotic arm support system according to claim 1, wherein the base includes at least three modular links, at least one modular link having a longitudinal axis that is perpendicular to longitudinal axes of at least two other modular links when the at least three modular links are attached together.
11. The surgical robotic arm support system according to claim 10, wherein at least one of the modular links is axially movable along its respective longitudinal axis to adjust a dimension of the base.
12. The surgical robotic arm support system according to claim 11, wherein each of the modular links are axially movable along their respective longitudinal axes to adjust at least a width and a length of the base.
13. A method, comprising: connecting a surgical robotic arm to at least one of a plurality of robotic arm connections on a surgical robotic arm support system base configured to at least partially surround a surgical table; and identifying the at least one robotic arm connection to which the surgical robotic arm is connected.
14. The method according to claim 13, further comprising mechanically restricting movement of at least part of the connected robotic arm relative to the base as part of the connecting the surgical robotic arm to the at least one robotic arm connection.
15. The method according to claim 14, further comprising enabling electrical connectivity between the connected robotic arm and the surgical robotic arm support system base as part of the connecting the robotic arm to the at least one robotic arm connection.
16. The method according to claim 13, further comprising calculating a position of at least two robotic arms connected to different robotic arm connections from stored location information about the robotic arm connections.
17. The method according to claim 16, further comprising aligning a movement of an input device of the surgical robotic arm support system with a corresponding movement of an instrument or camera affixed to one of the connected robotic arms based on the calculated position.
18. The method according to claim 16, further comprising identifying each of the connected robotic arms and the robot arm connection to which each identified robotic arm is connected.
19. The method according to claim 13, further comprising coupling a plurality of modular links around the surgical table to form the surgical robotic arm support system base.
20. The method according to claim 19, further comprising axially moving at least one of the modular links along its respective longitudinal axis to adjust a dimension of the base relative to the surgical table.
21. The method according to claim 20, further comprising: processing a signal from a position sensor configured to detect a movement of at least one of the links; identifying from the processed linear sensor signal an amount of detected movement; comparing the identified amount of detected movement to a threshold value; and triggering a notification when the compared amount exceeds the threshold value.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0053] Embodiments of the present disclosure are described herein with reference to the accompanying drawings, wherein:
[0054]
[0055]
[0056]
[0057]
[0058]
[0059]
[0060] As used herein, the terms parallel and perpendicular are understood to include relative configurations that are substantially parallel and substantially perpendicular up to about +or 10 degrees from true parallel and true perpendicular.
DETAILED DESCRIPTION
[0061] Embodiments of the presently disclosed surgical robotic support systems and methods of use thereof are described in detail with reference to the drawings, in which like reference numerals designate identical or corresponding elements in each of the several views. As used herein the term distal refers to that portion of the support system that is farther from a floor on which the support system is positioned, while the term proximal refers to that portion of the support system that is closer to the floor.
[0062] Turning to
[0063] Base 20 of support system 10 is sized and dimensioned to at least partially surround surgical table ST. Base 20 has a generally rectangular configuration configured to accommodate or border a perimeter of surgical table ST. It is contemplated that base 20 can be variously configured to match the profile of, or at least partially surround, variously dimensioned surgical tables. For example, in some embodiments, base 20 may be circular, oval, square, triangular, ellipsoid, polygonal, uniform, non-uniform and/or tapered. As such, some or all of the various components forming base 20 may have linear, arcuate, or other profiles as needed or desired.
[0064] Base 20 includes a plurality of links, for example, a first L-shaped link 22a, a second L-shaped link 22b, a first linear link 22c, and a second linear link 22d connected to one another and selectively adjustable relative to one another to adjust an overall width and an overall length of base 20. As such, the dimensions of base 20 can be adjusted to better accommodate a particular size of a surgical table, a size of a patient resting on the surgical table, and/or a surgeons preference. Further, posts 40a, 40b, 40c, 40d, which are attached to corresponding links 22a, 22b, 22c, 22d, can be moved between a plurality of selected positions relative to surgical table ST via relative movement of the plurality of links 22a, 22b, 22c, 22d.
[0065] First and second L-shaped links 22a, 22b each include a first leg 22a1, 22b1 and a second leg 22a2, 22b2. First legs 22a1, 22b1 are connected to respective second legs 22a2, 22b2 such that L-shaped links 22a, 22b together form a substantially squared configuration. First legs 22a1, 22b1 of L-shaped links 22a, 22b define a first longitudinal axis X1 (see
[0066] Base 20 includes a first coupling portion 24a interconnecting first legs 22a1, 22b1 of corresponding first and second L-shaped links 22a, 22b such that relative positions of first legs 22a1, 22b1 can be selectively adjusted. In some embodiments, first coupling portion 24a may be in the form of a telescoping feature or nested tubes slidingly disposed with one another. It is further contemplated that first legs 22a1, 22b1 of respective first and second L-shaped links 22a, 22b are movably connected to one another via various fastening engagements, such as, for example, threading engagement.
[0067] First linear link 22c is connected to second leg 22a2 of first L-shaped link 22a. A second longitudinal axis X2 (see
[0068] Second linear link 22d is connected to second leg 22b2 of L-shaped link 22b. A third axis X3 (see
[0069] As mentioned above, support system 10 includes a plurality of posts 40a, 40b, 40c, 40d connected to base 20 and configured to be coupled to a surgical table, such as, for example, surgical table ST. Each post 40a, 40b, 40c, 40d has a respective first end 40a1, 40b1, 40c1, 40d1, a respective second end 40a2, 40b2, 40c2, 40d2, and defines a respective longitudinal axis Y therealong. First ends 40a1, 40b1, 40c1, 40d1 are supported on links 20a, 20b, 20c, 20d, respectively, and second ends 40a2, 40b2, 40c2, 40d2 are each configured to support a respective robotic arm 60a, 60b, 60c, 60d. Robotic arms 60a, 60b, 60c, 60d are designed and adapted to perform surgical operations on a patient P lying on surgical table ST. Robotic arms 60a, 60b, 60c, 60d may each include a surgical instrument 62 having an end effector 64 for performing at least one function. Robotic arms 60a, 60b, 60c, 60d may be driven by electric drives (not shown) disposed in posts 40a, 40b, 40c, 40d that are connected to a control device (not shown).
[0070] Support system 10 may include one or more angular encoders or sensors 41 to identify an angle of one or more posts 40a, 40b, 40c, 40d relative to another object, including, but not limited to the base 20, surgical table ST, or patient P. Signals from angular sensor 41 may be used to assist in the proper angular alignment of a post 40 and/or robotic arm 60. Alignment assistance may be given by comparing a desired angular position with an actual angular position obtained from the angular sensor 41 and then providing feedback based on the difference. For example if the signals from angular sensor 41 indicate that post 40 and/or robotic arm 60 are at an overly acute angle, a notification may be triggered and/or transmitted indicating that the angle should be increased. In some instances, the notification may provide a specific recommended angle change or the notification may more generally identify that the post 40 and/or robotic arm 60 is not in a proper angular alignment, such as by activate a warning light, sounding an alarm, and/or displaying a warning message.
[0071] First ends 40a1, 40b1, 40c1, 40d1, and second ends 40a2, 40b2, 40c2, 40d2, respectively, of posts 40a, 40b, 40c, 40d are movable relative to one another along respective axes Y. Second ends 40a2, 40c2 of posts 40a, 40c are each configured to be slidingly coupled to a first rail R1 (see
[0072] Support system 10 may include one or more linear encoders or sensors 43 to identify the position of one or more of the first ends 40a1, 40b1, 40c1, 40d1, and second ends 40a2, 40b2, 40c2, 40d2, of one or more posts 40a, 40b, 40c, 40d with respect to each other and/or another object. Signals from one or more linear sensors 43 may be used to assist in the proper positioning of one or more of the posts 40a, 40b, 40c, and 40d as a post 40 is slid along a respective rail R1, R2. Positioning assistance may be given by comparing a desired position with an actual position obtained from one or more linear sensors 43 and then providing feedback based on the difference. For example if the signals from linear sensors 43 indicate that post 40 has not been slid to a desired position then a notification may be triggered to indicate that the post 40 should be moved. In some instances, the notification may provide a specific recommended distance to move post 40 or the notification may more generally identify that the post 40 is not in a proper position, such as by activate a warning light, sounding an alarm, and/or displaying a warning message.
[0073] Some support systems 10 may include angular sensors 41 and linear sensors 43, though other systems 10 may include only angular sensors 41, only linear sensors 43, or neither angular sensors 41 nor linear sensors 43. Including both angular sensors 41 and linear sensors 43 may provide additional verification of both the angular alignment and proper positioning of one or more posts 40.
[0074] With continued reference to
[0075] Second joint 44b of each post 40a, 40b, 40c, 40d provides posts 40a, 40b, 40c, 40d with added degrees of freedom. First ends 40a1, 40b1, 40c1, 40d1 each include a third joint 44c, which pivotably couples posts 40a, 40b, 40c, 40d to links 22a, 22b, 22c, 22d, respectively. Although posts 40a, 40b, 40c, 40d are shown and described as having three joints, it is to be understood that posts 40a, 40b, 40c, 40d may include more or less joints.
[0076] In operation, base 20 is positioned to at least partially surround surgical table ST. Specifically, base 20 is oriented relative to surgical table ST such that first legs 22a1, 22b1 of first and second L-shaped links 22a, 22b are adjacent and parallel to a foot or head of surgical table ST and second legs 22a2, 22b2 of first and second L-shaped links 22a, 22b and first and second linear links 22c, 22d are adjacent and parallel to respective sides of surgical table ST. Base 20 can include wheels (not shown) attached to a bottom surface thereof so that base 20 can be rolled to a selected position on floor F relative to surgical table ST. In some embodiments, a cushioned mat (not shown) is attached to base 20 to provide a soft surface on which an operating room staff can stand.
[0077] In some instances, the configuration (e.g., a length and/or width) of base 20 may need to be adjusted to correspond to a profile of a particular surgical table. As such, first and second L-shaped links 22a, 22b may be moved relative to one another along first longitudinal axis X1 to adjust a width W of base 20. First linear link 22c may be moved relative to second leg 22a2 of first L-shaped link 22a along second longitudinal axis X2 to adjust a first length L1 of base 20. Second linear link 22d may be moved relative to second leg 22b2 of second L-shaped link 22b along the third longitudinal axis X3 to adjust a second length L2 of base 20.
[0078] With base 20 disposed around surgical table ST and in the selected configuration, second ends 40a2, 40c2 or joints 44a of posts 40a, 40b, 40c, 40d are coupled to first rail R1 of surgical table ST, and second ends 40b2, 40d2 or joints 44a of posts 40b, 40d are coupled to second rail R2. Robotic arms 60a, 60b, 60c, 60d are coupled or inserted within second ends 40a2, 40b2, 40c2, 40d2 of posts 40a, 40b, 40c, 40d, respectively. It is contemplated that posts 40a, 40b, 40c, 40d contain a power source and means for communication for robotic arms 60a, 60b, 60c, 60d. Upon coupling posts 40a, 40b, 40c, 40d with first and second rails R1, R2, surgical table ST may be pivoted (e.g., tilted), lowered, and/or raised to a selected position relative to base 20. Lengths L1 and/or L2 of base 20 may also be adjusted to slide posts 40a, 40b, 40c, 40d relative to rails R1 and/or R2 to a selected position along rails R1 and/or R2. Base 20 may be adjusted or reconfigured to have a relatively small overall dimension or foot print, to have a relatively large overall dimension or footprint, or any dimension in between.
[0079] With reference to
[0080] Base 120 includes a first linear link 122a, a second linear link 122b, and a third linear link 122c. First linear link 122a has a first end 122a1 and a second end 122a2 and defines a first longitudinal axis A1 therebetween. First and second ends 122a1, 122a2 of first linear link 122a are axially movable relative to one another along first longitudinal axis A1 to adjust a width W of base 20. Second linear link 122b is movably coupled to first end 122a1 of first linear link 122a and defines a second longitudinal axis A2 therealong. Second longitudinal axis A2 is perpendicular to first longitudinal axis A3. Second linear link 122b is axially movable relative to first linear link 122a along second longitudinal axis A2 to adjust a first length L1 of base 120. Third linear link 122c is movably coupled to second end 122a2 of first linear link 122a and defines a third longitudinal axis A3 therealong. Third longitudinal axis A3 is perpendicular to first longitudinal axis A1 and parallel to second longitudinal axis A2. Third linear link 122c is axially movable relative to first linear link 122a along third longitudinal axis A3 to adjust a second length L2 of base 120. In some embodiments, each of second and third linear links 122b, 122c include at least two segments that are axially movable relative to one another to adjust the first and/or second lengths L1, L2 of base 120.
[0081] Posts 140a, 140b, 140c, 140d are configured to be coupled to surgical table ST. Each post 140a, 140b, 140c, 140d has a first end and a second end. The first ends of posts 140a, 140b, 140c, 140d are supported on second and third links 122b, 122c, respectively. The second ends of posts 140a, 140b, 140c, 140d are each configured to be coupled to a robotic arm 60a, 60b, 60c, 60d.
[0082] In operation, base 120 is positioned to at least partially surround surgical table ST. Specifically, base 120 is oriented relative to surgical table ST such that first linear link 122a is adjacent and parallel to a foot or head of surgical table ST and second and third linear links 122b, 122c are adjacent and parallel to respective sides of surgical table ST. In some instances, a configuration (e.g., a length and/or width) of base 120 may need to be adjusted to correspond to a profile of a particular surgical table. As such, first and second ends 122a1, 122a2 of first linear link 122a may be moved relative to one another, along first longitudinal axis Al, to adjust the width W of base 120. Second linear link 122b may be moved relative to first linear link 122a, along second longitudinal axis A2, to adjust the first length L1 of base 120. Third linear link 122c may also be moved relative to first linear link 122a, along the third longitudinal axis A3, to adjust the second length L2 of base 120.
[0083] With base 120 disposed around surgical table ST and in the selected configuration, posts 140a, 140c are coupled to a first side of surgical table ST and posts 140b, 140d are coupled to the second side of surgical table ST. Robotic arms 60a, 60b, 60c, 60d are coupled or inserted within the second ends of posts 140a, 140b, 140c, 140d, respectively. Upon coupling posts 140a, 140b, 140c, 140d with surgical table ST, surgical table ST may be pivoted (e.g., tilted), lowered, and/or raised to a selected position. Lengths L1 and/or L2 of base 120 may also be adjusted to slide posts 140a, 140b, 140c, 140d relative to the first and/or second sides of surgical table ST to a selected position along surgical table ST.
[0084] With reference to
[0085] Mechanical connectivity 261 may include a mechanism, opening, slot, latch, joint, clamp, groove, contour, force, or device that holds the robot arm in a known position relative to its respective connection 260. Each robot arm may include a post, similar to posts 40a-d, that is coupled to a connection 260 via mechanical connectivity 261. A fastener may be used to hold the post in place. The post may also be held in place solely by a frictional force between the post and the base 220 without the need for any extra mechanical fastener.
[0086] Electrical connectivity 262 may include electrical conductors, sensors, and/or circuitry for transmitting electrical signals between a connected robot arm and a processing unit 264 coupled to the base 220. Electrical connectivity 262 may include conductors for transmitting power and/or data signals between the robot arm and processing unit 264 of the support system 200 associated with the base 220. These signals may be used to drive the robot arm and/or an instrument (e.g., end effector 64 shown in
[0087]
[0088] Electrical connectivity 262 may also include, or be in the form of, a detector configured to identify the specific connection 260 that a particular robot arm has been connected to. The detector may include a sensor, conductor, and/or circuitry. For example, each robot arm and connection 260 may be assigned unique identifiers that are read by the detector when a robot arm is coupled to a particular connection 260.
[0089] In some instances, the electrical connectivity 262 may include a conductor that propagates an electrical signal containing identifying information about the robot arm or the specific connection 260 to which a robot arm is attached. This situation may occur, for example, when the identifying information about the robot arm and/or specific connection 260 to which the robot arm is attached is obtained from a sensor, memory, or other source on the robot arm and then is transmitted from the robot arm to the base through the electrical connectivity 262. Electrical connectivity 262 may also include a transmitter and/or receiver that transmits and/or receives a wired or wireless signal from the robot arm or other source.
[0090] A detector may include, or be in the form of, a sensor that detects the coupling of a robot arm to that particular connection 260 and/or uniquely identifies different robot arms. Once the specific connections 260 of each robot arm have been identified, the locations of each of the robot arms relative to the other arms may be calculated. This information may then be used to align movement of an input device 268 (e.g., a computer) with the corresponding movement of an instrument or end effector 64 or image as seen by the surgeon on a display screen from a camera 270 coupled to one of the robot arms.
[0091] Support system 200 may include one or more sensors that may sense whether a robot arm has been properly attached to a particular connection 260. These sensors may, but need not be, part of the mechanical connectivity 261 or electrical connectivity 262. A notification about the attachment state of a robot arm to a particular connection 260 may be communicated depending on the signals received from the sensors. For example, if an arm is not properly attached to a particular connection 260, a visual indicator, audible sound, and/or notification message associated with the improper attachment may be triggered to alert a person so that appropriate remedial action may be taken. The visual indicator may be part of a physical device, such as a red/green light located on or near the arm and/or particular connection 260 that indicates whether the arm is properly attached (e.g. green light) or not (e.g. red light), or it may be a virtual, in that a notification message, virtual light, or other indicator is displayed on a display screen.
[0092] Base 220 may have a rectangular U-shaped configuration that at least partially surrounds a surgical table, such as, for example, surgical table ST. Base 220 may include a first modular linear link 222a extending a width W, a second modular linear link 222b extending a length L1, and a third modular linear link 222c extending a length L2 that may be the same or different from length L1.
[0093] Each of the modular links 222a-c may be selectively attachable and detachable to the other links 222a-c. For example, link 222a may be attachable to link 222b at attachment point 231 and link 222a may be attachable to link 222c at attachment point 232. In other examples, different attachment points may be provided. First linear link 222a may have a longitudinal axis A1 that is perpendicular to longitudinal axes A2 and A3 of second and third links 222b and 222c respectively. One or more portions of the first linear link 222a may be axially movable relative to one another along first longitudinal axis A1 to adjust a width W of base 220. Similarly, one or more portions of the second and third links 222b and 222c may be axially movable along respective longitudinal axes A2 and A3 to adjust the lengths L1 and L2 of base 220.
[0094] Each link 222 may be coupled to one or more sensors that may sense whether two or more links are properly coupled together. A notification about the coupling state of two or more of links may be communicated depending on the signals received from one or more of the sensors about a link coupling state. For example, if one of the links is not properly coupled, a visual indicator, audible sound, and/or notification message associated with the improperly coupled link may be triggered to alert a person about the improper coupling so that appropriate remedial action may be taken. The visual indicator may be part of a physical device, such as a red/green light located near a link that provides status information about the links, or it may be a virtual, in that it that appears as a notification message, virtual light, or other indicator on a display screen.
[0095] It will be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be construed as limiting, but merely as exemplifications of various embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the claims appended thereto.