US20170014135A1 - Surgical tool - Google Patents
Surgical tool Download PDFInfo
- Publication number
- US20170014135A1 US20170014135A1 US14/799,535 US201514799535A US2017014135A1 US 20170014135 A1 US20170014135 A1 US 20170014135A1 US 201514799535 A US201514799535 A US 201514799535A US 2017014135 A1 US2017014135 A1 US 2017014135A1
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- US
- United States
- Prior art keywords
- end effector
- open
- occlusion clip
- control
- repositionable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Images
Classifications
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
- A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
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- A61B17/10—Surgical instruments, devices or methods, e.g. tourniquets for applying or removing wound clamps, e.g. containing only one clamp or staple; Wound clamp magazines
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- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
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- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
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- A61B2017/2926—Details of heads or jaws
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- A61B2017/2932—Transmission of forces to jaw members
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- A61B2017/2932—Transmission of forces to jaw members
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- A61B34/70—Manipulators specially adapted for use in surgery
- A61B34/71—Manipulators operated by drive cable mechanisms
Abstract
Description
- The present disclosure is directed to medical instruments and, more specifically, to an applier that may be used to apply a left atrial appendage occlusion clip.
- It is a first aspect of the present invention to provide a medical instrument comprising: (a) a first joint comprising a first member and a second member, the first member configured to be repositionable with respect to the second member in a first degree of freedom; (b) a second joint operatively coupled to the first joint, the second joint comprising a third member and a fourth member, the third member configured to be repositionable with respect to the fourth member in a second degree of freedom; (c) a pair of repositionable jaws operatively coupled to the first joint and the second joint; (d) an open-ended occlusion clip detachably mounted to the pair of repositionable jaws; and, (e) a controller operatively coupled to the first joint, the second joint, and the pair of repositionable jaws, the controller including a first control configured to direct repositioning of at least one of the first member and the second member, and a second control configured to direct repositioning of at least one of the third member and the fourth member, and a third control configured to direct repositioning of the pair of repositionable jaws, the third control including a line operatively coupled to the first and second jaws in at least a gun tackle pulley configuration.
- In a more detailed embodiment of the first aspect, the first control comprises a first active control configured to be repositionable among an infinite number of positions, where each of the infinite number of positions orients the first member with respect to the second member within the first degree of freedom, and the second control comprises a second active control configured to be repositionable among an infinite number of positions, where each of the infinite number of positions orients the third member with respect to the fourth member within the second degree of freedom. In yet another more detailed embodiment, the first active control includes a first wheel around which is partially wound a first line operatively coupled to at least one of the first member and the second member so that rotation of the first wheel translates into movement of at least one of the first member and the second member, and the second active control includes a second wheel around which is partially wound a second line operatively coupled to at least one of the third member and the fourth member so that rotation of the second wheel translates into movement of at least one of the third member and the fourth member. In a further detailed embodiment, the medical instrument further includes a repositionable lock in selective communication with at least one of the first control and the second control to retard movement in at least one of the first degree of freedom and the second degree of freedom. In still a further detailed embodiment, the repositionable lock is in selective communication with both the first control and the second control to retard movement of the first joint in the first degree of freedom and the second joint in the second degree of freedom. In a more detailed embodiment, the first control includes a plurality of first teeth, the second control includes a plurality of second teeth, and the repositionable lock includes a catch that concurrently engages at least one of the plurality of first teeth and at least one of the plurality of second teeth. In a more detailed embodiment, the controller is operatively coupled to a hand-held housing, and the repositionable lock is repositionably mounted to the hand-held housing. In another more detailed embodiment, the first control is operatively coupled to a hand-held housing and includes at least one of a pivoting, a sliding, and a rotating first projection extending from the hand-held housing, the second control is operatively coupled to the hand-held housing and includes at least one of a pivoting, a sliding, and a rotating second projection extending from the hand-held housing, and the repositionable lock is operatively coupled to the hand-held housing and includes at least one of a pivoting, a sliding, and a rotating third projection extending from the hand-held housing. In yet another more detailed embodiment, the first control includes a rotating first projection that comprises a first wheel, the second control includes a rotating second projection that comprises a second wheel, the repositionable lock includes a sliding third projection. In still another more detailed embodiment, the medical instrument further includes a longitudinal conduit extending between the controller and the first joint.
- In yet another more detailed embodiment of the first aspect, the first member comprises a clevis, and the second member comprises a universal. In yet another more detailed embodiment, the universal includes at least one of a first cavity and a first projection, as well as at least one of a second cavity and a second projection, the clevis includes the other of at least one of the first cavity and the first projection, as well as the other of the second cavity and the second projection, the first projection is configured to be repositionable within the first cavity, and the second projection is configured to be repositionable within the second cavity, in order to allow repositioning of the clevis with respect to the universal within the first degree of freedom. In a further detailed embodiment, the third member comprises the universal, and the fourth member comprises a yoke. In still a further detailed embodiment, the universal includes at least one of a third cavity and a third projection, as well as at least one of a fourth cavity and a fourth projection, the yoke includes the other of at least one of the third cavity and the third projection, as well as the other of the fourth cavity of the fourth projection, the third projection is configured to be repositionable within the fourth cavity, and the fourth projection is configured to be repositionable within the fourth cavity, in order to allow repositioning of the universal with respect to the yoke within the second degree of freedom. In a more detailed embodiment, the medical instrument further includes a first connection extending along the longitudinal conduit connecting the first control to at least one of the first member and the second member, and a second connection extending along the longitudinal conduit connecting the second control to at least one of the third member and the fourth member. In a more detailed embodiment, the medical instrument further includes a third connection extending along the longitudinal conduit connecting the first control to at least one of the first member and the second member, and a fourth connection extending along the longitudinal conduit connecting the second control to at least one of the third member and the fourth member. In another more detailed embodiment, the first connection, the second connection, the third connection, and the fourth connection each comprise a line. In yet another more detailed embodiment, the controller further includes a fourth control configured to detachably mount the occlusion clip to the pair of repositionable jaws. In still another more detailed embodiment, the fourth control includes a line concurrently mounted to the occlusion clip and the pair of repositionable jaws.
- In a more detailed embodiment of the first aspect, the line comprises at least a first line and a second line, the first line is concurrently mounted to the occlusion clip and a first of the pair of repositionable jaws, the second line is concurrently mounted to the occlusion clip and a second of the pair of repositionable jaws, the fourth control is repositionable to selectively dismount the first line from at least one of the occlusion clip and the first of the pair of repositionable jaws, and is repositionable to selectively dismount the second line from at least one of the occlusion clip and the second of the pair of repositionable jaws. In yet another more detailed embodiment, the fourth control includes a tab mounted to the first line and the second line, and the tab is selectively detachable from a hand-held housing. In a further detailed embodiment, the tab is rotationally repositionable with respect to the hand-held housing. In still a further detailed embodiment, the line extends along the longitudinal conduit and operatively couples the third control to the pair of repositionable jaws. In a more detailed embodiment, the medical instrument further includes pulleys operatively coupled to the pair of repositionable jaws, the pair of repositionable jaws being repositionable between an open non-parallel position and a closed position. In a more detailed embodiment, a first of the repositionable jaws is mounted to a first of the pulleys, a second of the repositionable jaws is mounted to a second of the pulleys, and the line of the third control engages the first and second pulleys. In another more detailed embodiment, the first repositionable jaw is mounted to the first and a third of the pulleys, the second repositionable jaw is mounted to the second and a fourth of the pulleys, and the line of the third control engages the first repositionable jaw and the third and fourth pulleys.
- In a more detailed embodiment of the first aspect, each of the pair of repositionable jaws includes a channel configured to receive a deployment line associated with a fourth control, the fourth control operative to selectively disengage the open-ended occlusion clip from the pair of repositionable jaws. In a more detailed embodiment, the third control comprises a repositionable handle operatively coupled to a hand-held housing of the controller. In another more detailed embodiment, the third control includes a slide arm concurrently mounted to the repositionable handle and the first connection. In yet another more detailed embodiment, the third control includes a spring to bias at least one of the slide arm and the handle, and the third control includes a trigger to selectively unlock the orientation of the handle with respect to the slide arm. In still another more detailed embodiment, the first line comprises a first pair of lines partially wound around the first wheel, where the first pair of lines is mounted to the second member, and the second line comprises a second pair of lines partially wound around the first wheel, where the second pair of lines is mounted to the third member.
- In yet another more detailed embodiment of the first aspect, the first wheel around which the first pair of lines are partially wound around has a first diameter, the second wheel around which the second pair of lines are partially wound around has a second diameter, where the first diameter is larger than the second diameter.
- It is a second aspect of the present invention to provide a method of controlling an end effector of a medical instrument that includes a first jaw and a second jaw, the medical instrument including a hand-held device operatively coupled to the end effector, comprising: (a) providing a first control of the hand-held device configured to direct repositioning of at least one of a first member and a second member of a first joint of the end effector, the first member and second member being repositionable with respect to one another in a first degree of freedom; (b) providing a second control of the hand-held device configured to direct repositioning of at least one of a third member and a fourth member of a second joint of the end effector, the third member and fourth member being repositionable with respect to one another in a second degree of freedom different from the first degree of freedom; and, (c) providing a third control of the hand-held device configured to direct repositioning of the first jaw with respect to the second jaw, wherein the third control includes a line operatively coupled to the first and second jaws in at least a gun tackle pulley configuration.
- In a more detailed embodiment of the second aspect, the method further includes providing a fourth control of the hand-held device configured to selectively disengage an open-ended occlusion clip operatively coupled to a folding support. In yet another more detailed embodiment, the first control includes a first wheel having a first line partially wound therearound, where the first line is also operatively coupled to at least one of the first member and the second member of the first joint of the end effector, and the second control includes a second wheel having a second line partially wound therearound, where the second line is also operatively coupled to at least one of the third member and the fourth member of the second joint of the end effector. In a further detailed embodiment, the third control includes a repositionable handle operatively coupled to the hand-held device, the repositionable handle operatively coupled to a line to reposition the first and second jaws between an open non-parallel position and a closed parallel position.
- It is a third aspect of the present invention to provide a medical instrument end effector comprising: (a) a first joint comprising a first member and a second member, the first member configured to be repositionable with respect to the second member in a first degree of freedom; (b) a second joint operatively coupled to the first joint, the second joint comprising a third member and a fourth member, the third member configured to be repositionable with respect to the fourth member in a second degree of freedom; (c) a pair of repositionable jaws operatively coupled to the first joint and the second joint; and, (d) a line operatively coupled to the pair of repositionable jaws in at least a gun tackle pulley configuration.
- In a more detailed embodiment of the third aspect, the end effector further includes an occlusion clip detachably mounted to the pair of repositionable jaws. In yet another more detailed embodiment, the end effector further includes a controller including a first control configured to direct repositioning of the first joint, a second control configured to direct repositioning of the second joint, and a third control configured to direct repositioning of the pair of repositionable jaws, and a longitudinal conduit extending between the controller and the first joint. In a further detailed embodiment, the first member comprises a clevis, and the second member comprises a universal. In still a further detailed embodiment, the universal includes at least one of a first cavity and a first projection, as well as at least one of a second cavity and a second projection, the clevis includes the other of at least one of the first cavity and the first projection, as well as the other of the second cavity and the second projection, and the first projection is configured to be repositionable within the first cavity, and the second projection is configured to be repositionable within the second cavity, in order to allow repositioning of the clevis with respect to the universal within the first degree of freedom. In a more detailed embodiment, the third member comprises the universal, and the fourth member comprises a yoke. In a more detailed embodiment, the universal includes at least one of a third cavity and a third projection, as well as at least one of a fourth cavity and a fourth projection, the yoke includes the other of at least one of the first cavity and the first projection, as well as the other of the second cavity and the second projection, the third projection is configured to be repositionable within the second cavity, and the fourth projection is configured to be repositionable within the fourth cavity, in order to allow repositioning of the universal with respect to the yoke within the second degree of freedom. In another more detailed embodiment, a line concurrently mounts the occlusion clip to the pair of repositionable jaws.
- In yet another more detailed embodiment of the third aspect, the medical instrument further includes pulleys operatively coupled to the pair of repositionable jaws, the pair of repositionable jaws being repositionable between an open non-parallel position and a closed position. In yet another more detailed embodiment, a first of the repositionable jaws is mounted to a first of the pulleys, a second of the repositionable jaws is mounted to a second of the pulleys, and the line of the third control engages the first and second pulleys. In a further detailed embodiment, the first repositionable jaw is mounted to the first and a third of the pulleys, the second repositionable jaw is mounted to the second and a fourth of the pulleys, the line of the third control engages the first repositionable jaw and the third and fourth pulleys. In still a further detailed embodiment, the first repositionable jaw is pivotally mounted to the fourth member, the second repositionable jaw is pivotally mounted to the fourth member, and the first repositionable jaw pivotally engages the second repositionable jaw. In a more detailed embodiment, each of the pair of repositionable jaws includes a channel configured to receive a deployment line associated with a fourth control, the fourth control operative to selectively disengage the open-ended occlusion clip from the pair of repositionable jaws.
- It is a fourth aspect of the present invention to provide a method of deploying an occlusion clip comprising: (a) inserting an open-ended occlusion clip and deployment device having repositionable jaws into and through a 12 millimeter trocar or smaller, the occlusion clip and deployment device mounted to one another when inserted into and through the trocar; (b) repositioning the deployment device to position the occlusion clip in an open orientation; (c) repositioning the deployment device to direct the occlusion clip in the open orientation so an open end of the open-ended occlusion clip is interposed by a left atrial appendage without passing a tip of the left atrial appendage between opposing beams of the occlusion clip; (d) repositioning the deployment device to position the occlusion clip in a clamped orientation so that portions of the occlusion clip clamp a portion of the left atrial appendage therebetween; (e) removing the deployment device from the occlusion clip; and, (f) withdrawing the deployment device from partially circumscribing the left atrial appendage without passing the tip of the left atrial appendage between the repositionable jaws.
- It is a fifth aspect of the present invention to provide a method of deploying an occlusion clip comprising: (a) inserting an open-ended occlusion clip removably mounted to an end effector deployment device having repositionable jaws through at least one of an incision and a trocar, the occlusion clip and the end effector deployment device mounted to one another when inserted into and through at least one of the incision and the trocar; (b) repositioning the end effector deployment device to reposition the occlusion clip so an open end of the open-ended occlusion clip is interposed by a portion of a left atrial appendage interposing a base and a tip of the left atrial appendage without passing a tip of the left atrial appendage between opposing clamping surfaces of the occlusion clip and without piercing the left atrial appendage between the occlusion clip; (c) clamping the left atrial appendage with the open-ended occlusion clip to occlude the left atrial appendage; (d) disengaging the open-ended occlusion clip from the end effector deployment device; and, (e) withdrawing the end effector deployment device through at least one of the incision and the trocar.
- In a more detailed embodiment of the fifth aspect, the inserting step occurs during at least one of an open sternotomy, a left thoracotomy, a right thoracotomy, a left port procedure, a right port procedure, a subxiphoid approach, and a transdiaphragmatic approach. In yet another more detailed embodiment, the method further includes insufflating a thoracic space prior to the inserting step. In a further detailed embodiment, the method further includes making an incision as part of a procedure comprising at least one of an open sternotomy, a left thoracotomy, a right thoracotomy, a left port procedure, a right port procedure, a subxiphoid approach, and a transdiaphragmatic approach, and introducing a trocar through the incision. In still a further detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, and repositioning the end effector deployment device step includes actuating at least one of a first control and a second control associated with the hand-held device to actively reposition the end effector within at least one of an X-Y plane and a Y-Z plane with respect to the hand-held device. In a more detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, the method further comprising repositioning the open-ended occlusion clip from a compressed position to an expanded position prior to interposing a portion of the left atrial appendage between the opposing clamping surfaces. In a more detailed embodiment, the method further includes actuating a handle associated with the hand-held device to direct repositioning of the open-ended occlusion clip between the compressed position and the expanded position. In another more detailed embodiment, actuating the handle causes a pair of jaws associated with the end effector to reposition with respect to one another, and the pair of jaws is mounted to the open-ended occlusion clip. In yet another more detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, the method further comprising rotationally repositioning the open-ended occlusion clip with respect to the left atrial appendage by rotating the hand-held device. In still another more detailed embodiment, the method further includes grasping the left atrial appendage concurrent with repositioning the end effector deployment device to reposition the occlusion clip so the open end of the open-ended occlusion clip is interposed by the portion of the left atrial appendage.
- In yet another more detailed embodiment of the fifth aspect, the method further includes repeating the repositioning and clamping steps prior to the disengaging step. In yet another more detailed embodiment, the method further includes confirming a clamping position of the open-ended occlusion clip is operative to occlude the left atrial appendage using at least one of visualization and a transesophageal echocardiogram. In a further detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, and disengaging the open-ended occlusion clip from the end effector deployment device includes actuating a control associated with the hand-held device. In still a further detailed embodiment, the control comprises a repositionable tab operatively coupled to a wire, which is operatively coupled the end effector and the open-ended occlusion clip, and removing the repositionable tab from the hand-held device repositions the wire with respect to at least one loop encompassing at least one of the open-ended occlusion clip and the end effector deployment device in order to disengage the open-ended occlusion clip from the end effector deployment device. In a more detailed embodiment, the inserting step includes inserting the open-ended occlusion clip and the end effector deployment device through the trocar, the withdrawing step includes withdrawing the end effector deployment device through the trocar, and the trocar comprises a twelve millimeter or less diameter orifice. In a more detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, and the step of repositioning the end effector deployment device to reposition the occlusion clip includes locking a position of the end effect deployment device in at least one of an X-Y plane and a Y-Z plane with respect to the hand-held device.
- It is a sixth aspect of the present invention to provide a medical instrument comprising: (a) an end effector including a pair of repositionable jaws at least operatively coupled to a controller, the controller including a jaw control configured to direct repositioning of the pair of repositionable jaws, the jaw control including a line at least operatively coupled to the first and second jaws in at least a gun tackle pulley configuration; and, (b) an open-ended occlusion clip detachably mounted to the pair of repositionable jaws.
- In a more detailed embodiment of the sixth aspect, the controller includes a first control, a first joint and a second joint interpose the controller and the end effector, the first joint comprises a first member and a second member, the first member configured to be repositionable with respect to the second member in a first degree of freedom, and the second joint operatively coupled to the first joint, the second joint comprising a third member and a fourth member, the third member configured to be repositionable with respect to the fourth member in a second degree of freedom. In yet another more detailed embodiment, the first control comprises a first active control configured to be repositionable among an infinite number of positions, where each of the infinite number of positions orients the first member with respect to the second member within the first degree of freedom, and the second control comprises a second active control configured to be repositionable among an infinite number of positions, where each of the infinite number of positions orients the third member with respect to the fourth member within the second degree of freedom. In a further detailed embodiment, the first active control includes a first wheel around which is partially wound a first line operatively coupled to at least one of the first member and the second member so that rotation of the first wheel translates into movement of at least one of the first member and the second member, and the second active control includes a second wheel around which is partially wound a second line operatively coupled to at least one of the third member and the fourth member so that rotation of the second wheel translates into movement of at least one of the third member and the fourth member. In still a further detailed embodiment, the controller further includes a repositionable lock in selective communication with at least one of the first control and the second control to retard movement in at least one of the first degree of freedom and the second degree of freedom. In a more detailed embodiment, the repositionable lock is in selective communication with both the first control and the second control to retard movement of the first joint in the first degree of freedom and the second joint in the second degree of freedom. In a more detailed embodiment, the first control includes a plurality of first teeth, the second control includes a plurality of second teeth, and the repositionable lock includes a catch that concurrently engages at least one of the plurality of first teeth and at least one of the plurality of second teeth. In another more detailed embodiment, the controller is operatively coupled to a hand-held housing, and the repositionable lock is repositionably mounted to the hand-held housing. In yet another more detailed embodiment, the first control is operatively coupled to a hand-held housing and includes at least one of a pivoting, a sliding, and a rotating first projection extending from the hand-held housing, the second control is operatively coupled to the hand-held housing and includes at least one of a pivoting, a sliding, and a rotating second projection extending from the hand-held housing, and the repositionable lock is operatively coupled to the hand-held housing and includes at least one of a pivoting, a sliding, and a rotating third projection extending from the hand-held housing. In still another more detailed embodiment, the medical instrument further includes a longitudinal conduit at least operatively coupled to the end effector and the controller.
- In yet another more detailed embodiment of the sixth aspect, the first control includes a rotating first projection that comprises a first wheel, the second control includes a rotating second projection that comprises a second wheel, and the repositionable lock includes a sliding third projection. In yet another more detailed embodiment, the first member comprises a clevis, and the second member comprises a universal. In a further detailed embodiment, the universal includes at least one of a first cavity and a first projection, as well as at least one of a second cavity and a second projection, the clevis includes the other of at least one of the first cavity and the first projection, as well as the other of the second cavity and the second projection, and the first projection is configured to be repositionable within the first cavity, and the second projection is configured to be repositionable within the second cavity, in order to allow repositioning of the clevis with respect to the universal within the first degree of freedom. In still a further detailed embodiment, the third member comprises the universal, and the fourth member comprises a yoke. In a more detailed embodiment, the universal includes at least one of a third cavity and a third projection, as well as at least one of a fourth cavity and a fourth projection, the yoke includes the other of at least one of the first cavity and the first projection, as well as the other of the second cavity and the second projection, and the third projection is configured to be repositionable within the second cavity, and the fourth projection is configured to be repositionable within the fourth cavity, in order to allow repositioning of the universal with respect to the yoke within the second degree of freedom. In a more detailed embodiment, the medical instrument further includes a first connection extending along the longitudinal conduit connecting the first control to at least one of the first member and the second member, and a second connection extending along the longitudinal conduit connecting the second control to at least one of the third member and the fourth member. In another more detailed embodiment, the medical instrument further includes a third connection extending along the longitudinal conduit connecting the first control to at least one of the first member and the second member, and a fourth connection extending along the longitudinal conduit connecting the second control to at least one of the third member and the fourth member. In yet another more detailed embodiment, the first connection, the second connection, the third connection, and the fourth connection each comprise a line. In still another more detailed embodiment, the controller further includes a release control configured to detachably mount the occlusion clip to the pair of repositionable jaws.
- In a more detailed embodiment of the sixth aspect, the release control includes a line concurrently mounted to the occlusion clip and the pair of repositionable jaws. In yet another more detailed embodiment, the line comprises at least a first line and a second line, the first line is concurrently mounted to the occlusion clip and a first of the pair of repositionable jaws, the second line is concurrently mounted to the occlusion clip and a second of the pair of repositionable jaws, and the release control is repositionable to selectively dismount the first line from at least one of the occlusion clip and the first of the pair of repositionable jaws, and is repositionable to selectively dismount the second line from at least one of the occlusion clip and the second of the pair of repositionable jaws. In a further detailed embodiment, the release control includes a tab mounted to the first line and the second line, and the tab is selectively detachable from a hand-held housing. In still a further detailed embodiment, the tab is rotationally repositionable with respect to the hand-held housing. In a more detailed embodiment, the line extends along the longitudinal conduit and operatively couples the jaw control to the pair of repositionable jaws. In a more detailed embodiment, each of the pair of repositionable jaws includes a channel configured to receive a deployment line associated with a release control, the release control operative to selectively disengage the open-ended occlusion clip from the pair of repositionable jaws. In another more detailed embodiment, the jaw control comprises a repositionable handle operatively coupled to a hand-held housing of the controller. In a more detailed embodiment, the jaw control includes a slide arm concurrently mounted to the repositionable handle and the first connection. In another more detailed embodiment, the jaw control includes a spring to bias at least one of the slide arm and the handle, and the jaw control includes a trigger to selectively unlock the orientation of the handle with respect to the slide arm. In yet another more detailed embodiment, the first line comprises a first pair of lines partially wound around the first wheel, where the first pair of lines is mounted to the second member, and the second line comprises a second pair of lines partially wound around the first wheel, where the second pair of lines is mounted to the third member. In still another more detailed embodiment, the first wheel around which the first pair of lines are partially wound around has a first diameter, the second wheel around which the second pair of lines are partially wound around has a second diameter, and the first diameter is larger than the second diameter.
- It is a seventh aspect of the present invention to provide a method of deploying an occlusion clip comprising: (a) inserting an open-ended occlusion clip removably mounted to an end effector deployment device having repositionable jaws through at least one of an incision and a trocar, the occlusion clip and the end effector deployment device mounted to one another when inserted into and through the trocar; (b) repositioning the end effector deployment device to reposition the occlusion clip so an open end of the open-ended occlusion clip is interposed by a portion of a left atrial appendage interposing a base and a tip of the left atrial appendage without passing the tip of the left atrial appendage between opposing clamping surfaces of the occlusion clip and without piercing the left atrial appendage between the occlusion clip; (c) clamping the left atrial appendage with the open-ended occlusion clip in an initial position; (d) assessing the operability of the open-ended occlusion clip in the initial position to occlude the left atrial appendage; and, (e) repositioning the end effector deployment device to reposition the open-ended occlusion clip to a subsequent position, different from the initial position, to clamp the left atrial appendage, where repositioning the open-ended occlusion clip from the initial position to the subsequent position is repeatable without affecting the structural integrity of the left atrial appendage.
- It is an eighth aspect of the present invention to provide a method of deploying an occlusion clip comprising: (a) inserting an open-ended occlusion clip removably mounted to an end effector deployment device, having repositionable jaws, through at least one of an incision and a trocar, the open-ended occlusion clip biased to a clamping position; (b) repositioning the end effector deployment device to counteract a bias of the open-ended occlusion clip and reposition the open-ended occlusion clip to a tissue insertion position where the full bias of the open-ended occlusion clip is not applied to a left atrial appendage tissue; (c) repositioning the end effector deployment device to reposition the open-ended occlusion clip in the tissue insertion position so a portion of a left atrial appendage between a base and a tip of the left atrial appendage interposes the open-ended occlusion clip without ever having a tip of the left atrial appendage interpose the open-ended occlusion clip; and, (d) repositioning the open-ended occlusion clip to apply the full bias to the left atrial appendage.
- In a more detailed embodiment of the eighth aspect, the method further includes disengaging the open-ended occlusion clip from the end effector deployment device, and withdrawing the end effector deployment device through at least one of the incision and the trocar. In yet another more detailed embodiment, the inserting step occurs during at least one of an open sternotomy, a left thoracotomy, a right thoracotomy, a left port procedure, a right port procedure, a subxiphoid approach, and a transdiaphragmatic approach. In a further detailed embodiment, the method includes insufflating a thoracic space prior to the inserting step. In still a further detailed embodiment, the method further includes making an incision as part of a procedure comprising at least one of an open sternotomy, a left thoracotomy, a right thoracotomy, a left port procedure, a right port procedure, a subxiphoid approach, and a transdiaphragmatic approach, and introducing a trocar through the incision. In a more detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, and repositioning the end effector deployment device step includes actuating at least one of a first control and a second control associated with the hand-held device to actively reposition the end effector within at least one of an X-Y plane and a Y-Z plane with respect to the hand-held device. In a more detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, the method further comprising repositioning the open-ended occlusion clip from a compressed position to an expanded position prior to interposing a portion of the left atrial appendage between the opposing clamping surfaces. In another more detailed embodiment, the method further includes actuating a handle associated with the hand-held device to direct repositioning of the open-ended occlusion clip between the compressed position and the expanded position. In yet another more detailed embodiment, actuating the handle causes a pair of jaws associated with the end effector to reposition with respect to one another, and the pair of jaws is mounted to the open-ended occlusion clip. In still another more detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, the method further comprising rotationally repositioning the open-ended occlusion clip with respect to the left atrial appendage by rotating the hand-held device.
- In yet another more detailed embodiment of the eighth aspect, the method further includes grasping the left atrial appendage concurrent with repositioning the end effector deployment device to reposition the occlusion clip so the open end of the open-ended occlusion clip is interposed by the portion of the left atrial appendage. In yet another more detailed embodiment, the method further includes confirming application of the full bias of the open-ended occlusion clip is operative to occlude the left atrial appendage using at least one of visualization and a transesophageal echocardiogram. In a further detailed embodiment, the method further includes disengaging the open-ended occlusion clip from the end effector deployment device, where the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, and disengaging the open-ended occlusion clip from the end effector deployment device includes actuating a control associated with the hand-held device. In still a further detailed embodiment, the control comprises a repositionable tab operatively coupled to a wire, which is operatively coupled to the end effector and the open-ended occlusion clip, and removing the repositionable tab from the hand-held device repositions the wire with respect to at least one loop encompassing at least one of the open-ended occlusion clip and the end effector deployment device in order to disengage the open-ended occlusion clip from the end effector deployment device. In a more detailed embodiment, the inserting step includes inserting the open-ended occlusion clip and the end effector deployment device through the trocar, and the trocar comprises a twelve millimeter or less diameter orifice. In a more detailed embodiment, the end effector deployment device is mounted to a longitudinal conduit, which is mounted to a hand-held device, and the step of repositioning the end effector deployment device to reposition the open-ended occlusion clip includes locking a position of the end effect deployment device in at least one of an X-Y plane and a Y-Z plane with respect to the hand-held device.
-
FIG. 1 is an elevated perspective view of an exemplary surgical tool in accordance with the instant disclosure. -
FIG. 2 is an elevated perspective view of the end effector ofFIG. 1 , shown in the collapsed position after having deployed an occlusion clip. -
FIG. 3 is an exploded view of the end effector ofFIG. 2 with the occlusion clip. -
FIG. 4 is an elevated perspective view from a distal end of an exemplary clevis in accordance with the instant disclosure. -
FIG. 5 is an elevated perspective view from a proximal end of the exemplary clevis ofFIG. 4 . -
FIG. 6 is a cross-sectional view of the exemplary clevis ofFIG. 5 taken along line 6-6. -
FIG. 7 is a cross-sectional view of the exemplary clevis ofFIG. 4 taken along line 7-7. -
FIG. 8 is an elevated perspective view from a distal end of an exemplary universal in accordance with the instant disclosure. -
FIG. 9 is a profile view of the exemplary universal ofFIG. 8 . -
FIG. 10 is a cross-sectional view of the exemplary universal ofFIG. 8 taken along line 10-10. -
FIG. 11 is a cross-sectional view of the exemplary universal ofFIG. 9 taken along line 11-11. -
FIG. 12 is an elevated perspective view from a distal end of an exemplary yoke in accordance with the instant disclosure. -
FIG. 13 is a distal end view of the exemplary yoke ofFIG. 12 . -
FIG. 14 is a proximal end view of the exemplary yoke ofFIG. 12 . -
FIG. 15 is a top view of the exemplary yoke ofFIG. 12 . -
FIG. 16 is a cross-sectional view of the exemplary yoke ofFIG. 15 taken along line 16-16. -
FIG. 17 is a cross-sectional view of the exemplary yoke ofFIG. 15 taken along line 17-17. -
FIG. 18 is an elevated perspective view from an interior, proximal end of a first jaw in accordance with the instant invention. -
FIG. 19 is an exterior profile view of the first jaw ofFIG. 18 . -
FIG. 20 is a bottom view of a second jaw in accordance with the instant disclosure. -
FIG. 21 is an elevated perspective view from an interior, proximal end of the second jaw ofFIG. 20 . -
FIG. 22 is an elevated perspective view from a distal end, taken of a portion of an exemplary end effector without the exemplary universal to show orientation and positioning of deployment wires and control wires for the exemplary clevis and yoke in accordance with the instant disclosure. -
FIG. 23 is an elevated perspective view from a proximal end, taken of the exemplary end effector to show orientation and positioning of deployment wires and control wires for the exemplary universal, yoke, and jaws in accordance with the instant disclosure. -
FIG. 24 is an elevated perspective view from a proximal end, taken of a portion of an exemplary end effector without the exemplary clevis, universal, and yoke to show orientation and positioning of deployment wires and control wires for the exemplary jaws in accordance with the instant disclosure. -
FIG. 25 is an elevated perspective view from a proximal end, taken of a portion of an exemplary end effector without the exemplary clevis and universal to show orientation and positioning of deployment wires and control wires for the exemplary yoke and jaws in accordance with the instant disclosure. -
FIG. 26 is a perspective view of the interior of a left side housing in accordance with the instant disclosure. -
FIG. 27 is a perspective view of the interior of a right side housing in accordance with the instant disclosure. -
FIG. 28 is a profile view of the interior of the right side housing ofFIG. 27 and components housed therein in accordance with the instant disclosure. -
FIG. 29 is an elevated perspective view of an exterior side of a first wheel in accordance with the instant disclosure. -
FIG. 30 is an elevated perspective view of an interior side of the first wheel ofFIG. 29 . -
FIG. 31 is an elevated perspective view from an exterior surface of a first pulley and associated wires in accordance with the instant disclosure. -
FIG. 32 is an exploded view of the components ofFIG. 31 , less the wires. -
FIG. 33 is an elevated perspective view from an interior surface of the first pulley ofFIG. 31 . -
FIG. 34 is an elevated perspective view from an exterior surface of a second pulley in accordance with the instant disclosure. -
FIG. 35 is an elevated perspective view from an interior surface of the second pulley ofFIG. 34 and associated wires in accordance with the instant disclosure. -
FIG. 36 is an exploded view of the components ofFIG. 35 , less the wires. -
FIG. 37 is an elevated perspective view of an exterior side of a second wheel in accordance with the instant disclosure. -
FIG. 38 is an elevated perspective view of an interior side of the second wheel ofFIG. 37 . -
FIG. 39 is a profile view of an exemplary repositionable lock in accordance with the instant disclosure. -
FIG. 40 is an exploded view of the exemplary components ofFIG. 39 . -
FIG. 41 is a cross-sectional view of the exemplary thumb button ofFIG. 39 taken along line 45-45. -
FIG. 42 is an exploded view of an exemplary control for repositioning the end effector jaws in accordance with the instant disclosure. -
FIG. 43 is an assembled view of the exemplary control ofFIG. 42 . -
FIG. 44 a cross-sectional view of the exemplary control ofFIG. 43 taken along line 48-48. -
FIG. 45 is an elevated perspective view of an exemplary shaft assembly along with associated control and deployment wires in accordance with the instant disclosure. -
FIG. 46 is an end view taken from a distal end of an exemplary repositionable tab in accordance with the instant disclosure. -
FIG. 47 is an end view taken from a distal end of a further exemplary repositionable tab in accordance with the instant disclosure. -
FIG. 48 is an elevated perspective view of a portion of an exemplary end effector in accordance with the instant disclosure shown mounted to an exemplary occlusion clip. - The exemplary embodiments of the present disclosure are described and illustrated below to encompass devices, methods, and techniques relating to surgical procedures. Of course, it will be apparent to those of ordinary skill in the art that the embodiments discussed below are exemplary in nature and may be reconfigured without departing from the scope and spirit of the present disclosure. It is also to be understood that variations of the exemplary embodiments contemplated by one of ordinary skill in the art shall concurrently comprise part of the instant disclosure. However, for clarity and precision, the exemplary embodiments as discussed below may include optional steps, methods, and features that one of ordinary skill should recognize as not being a requisite to fall within the scope of the present disclosure.
- Referencing
FIG. 1 , an exemplarysurgical tool 10 includes auser control 20 mounted to ashaft assembly 30, which is mounted to an exemplary minimally invasivesurgical end effector 100. Theuser control 20 includes afirst wheel control 40 to vary the yaw of theend effector 100, while theuser control 20 further includes asecond wheel control 50 to vary the pitch of the end effector. A user of thecontrol 20 may manipulate the roll of theend effector 100 simply by rolling the user control. In order to selectively inhibit manipulation of the wheel controls 40, 50, arepositionable lock 60 is also provided. A proximal end of theuser control 20 further includes arepositionable tab 70 that may be utilized to, in exemplary form, disengage a left atrial appendage (LAA) occlusion clip from theend effector 100. In addition, theuser control 20 includes alever control 80 that is operative to control repositioning of the jaws of theend effector 100 with respect to one another. Several of the components of thelever control 80, the wheel controls 40, 50, and therepositionable lock 60 at least partially reside within agrip housing 90. A more detailed discussion of the exemplary components of thesurgical tool 10 will be discussed successively. - Referring to
FIGS. 1-3 , theexemplary end effector 100 may be used in minimally invasive surgical procedures to allow deployment of anLAA occlusion clip 102 with respect to a left atrial appendage (not shown). U.S. Provisional Patent Application No. 62/091,230, which describes an exemplaryLAA occlusion clip 102, is incorporated herein by reference. As will be apparent to those skilled in the art after reviewing the instant disclosure, theend effector 100 andsurgical tool 10 may be utilized in capacities other than LAA occlusion clip deployment, each of which is within the scope of this disclosure. - The
end effector 100 comprises aclevis 110 that is mounted proximally to theshaft assembly 30 and distally to a proximal portion of a universal 120, which is rotatably repositionable within an X-Y plane with respect to the clevis. A distal portion of the universal 120 is mounted to a proximal portion of ayoke 130 that is rotatably repositionable within a Y-Z plane with respect to the universal. A distal portion of theyoke 130 has mounted to it afirst pin 140 and asecond pin 150 that extend through corresponding proximal openings of afirst jaw 160 and asecond jaw 170. In this fashion, thejaws yoke 130 and with respect to one another. Eachjaw fourth pin 190. The spacing between the U-shaped projections is sufficient to each accommodate a respective pair ofpulleys respective pin 180, 190. As will be discussed in more detail hereafter, a control wire 1364 (seeFIG. 24 ) is fed around thepulleys jaws jaws bias spring 220 interposes the jaws and is concurrently mounted thereto. A more detailed discussion of the component parts of theend effector 100 follows. - As shown in
FIGS. 4-7 , theclevis 110 includes anouter shell 400 that defines alongitudinal passage 402 extending therethrough. Aproximal end 404 of theshell 400 includes an inner,cylindrical surface 406 that circumscribes anelongated shaft 1390 of the shaft assembly 30 (seeFIG. 45 ) and retains the shaft therein via a compression fit. This inner,cylindrical surface 406 abuts adam 408 that inhibits further distal repositioning of theshaft 1390. Extending through thedam 408 are a pair of cylindrical throughholes 410 interposed by an elongated throughhole 412. In exemplary form, as shown inFIG. 22 ,separate control wires cylindrical hole 410 and are coupled to the universal 120 and to thefirst wheel control 40 so that manipulation of the first wheel control is operative to reposition the universal with respect to theclevis 110. In addition, another group ofwires elongated hole 412. A more detailed discussion of the wires and the structures to which each is mounted will be discussed hereafter. - On a distal side of the
holes overhang 416 andcorresponding underhang 418, along with correspondinginterior walls 422, partially define a distal opening. In particular, theoverhang 416 andunderhang 418 are mirror images of one another and include an arcuate profile that curves away from thedam 408 until terminating at opposing planar upper andlower walls 424. Inset within each of theinterior walls 422 is a C-shapeddepression 426, where the open end of the C-shape faces distally. As will be discussed in more detail hereafter, aperipheral surface 430 partially delineating the C-shapeddepression 426 bridges between theinterior wall 422 and astep wall 432, and provides a camming surface against which the universal 120 rotates. In this exemplary embodiment, theinterior walls 422 are planar and parallel to one another, as are thestep walls 432, in addition to the interior walls being parallel to the step walls. Interposing the upper andlower walls 424 are convex side surfaces 436, where the convex side surfaces abut distalcurved surfaces 438 that partially delineate the C-shapeddepression 426 and likewise extend between the upper and lower walls. Extending proximally, the upper andlower walls 424 and the convex side surfaces 436 transition from a generally rectangular exterior cross-section to a circular cross-section at aproximal end 440 via a series of taperedwalls 442. Extending distally from theclevis 110 is the universal 120. - Referring to
FIGS. 8-11 , the universal 120 comprises a pair ofprojections 450 extending outward from opposing right and left side surfaces 452. In this exemplary embodiment, theprojections 450 include aplateau surface 454 that is generally planar and parallel with the planar surface of thenearest side surface 452. A peripheral shape of eachprojection 450 is rounded on a proximal end and comes to a point on adistal end 451 that is generally centered with a midline extending through the universal 120. In particular, theperipheral surface 456 of eachprojection 450 is intended to contact and ride against theperipheral surface 430 of the clevis 110 (seeFIG. 4 ) in order to allow pivotal motion between the clevis and universal 120. But the pointed shape of eachprojection 450, as embodied by two linear segments of theperipheral surface 456, is operative to provide opposing stops that prevent complete rotation of the universal 120 with respect to theclevis 110. By way of example, the linear segments of theperipheral surface 456 are angled approximately ninety degrees with respect to one another so that the universal 120 can rotate ±forty-five degrees with respect to a longitudinal axis extending through theclevis 110 in the proximal-distal direction. Eachprojection 450 is generally centered between opposing top andbottom surfaces 460 and distally inset from aproximal end 462. - The
proximal end 462 of the universal 120 is semicircular in profile to ride against theoverhang 416 andunderhang 418 of theclevis 110 when the universal is rotated with respect to the clevis. In particular, theproximal end 462 includes a centralU-shaped channel 466 that terminates at corresponding key-shaped throughopenings 468 extending through the top andbottom surfaces 460 and into an interior of the universal 120. The key-shapedopening 468 includes a cylindrical, enlarged opening 469 that is configured to accept an enlarged end of acontrol wire 1172, 1174 (seeFIG. 22 ). Once passing through the cylindrical opening, the enlarged end of the control wire is retained within a capture, which is partially delineated via adepression 464, that inhibits throughput of the enlarged end of the control wire through the smaller height aspect of the key-shaped throughopenings 468. A height of theU-shaped channel 466 extending along the top and bottom is sufficient to accommodate the width of a control wire, but not so high as to allow throughput of the enlarged end of the control wire, with the exception of through the enlarged cylindrical opening. Correspondinginterior surfaces 470 delineating a portion of theU-shaped channel 466 are convex and arcuate in shape. Extending co-planar with theU-shaped channel 466 is a throughopening 474 is sized to accommodate throughput of further control wires. The base of the U-shaped channel and the throughopening 474 interpose opposing left andright side channels - A proximal end of each of the
channels complementary walls walls overhang 416 andunderhang 418 of theclevis 110. Each of thechannels distal extensions 490. - Inset within each
interior wall 492 of thedistal extensions 490 is a Y-shapeddepression 496, where the open end of the Y-shape faces distally. As will be discussed in more detail hereafter, aperipheral surface 498 partially delineating the Y-shapeddepression 496 bridges between theinterior wall 492 and astep wall 502, and provides a camming surface against which theyoke 130 rotates. In this exemplary embodiment, theinterior walls 492 are planar and parallel to one another, as are thestep walls 502, in addition to the interior walls being parallel to the step walls. Thestep walls 502 and the top andbottom surfaces 460 converge at respective distal ends of thedistal extensions 490 to form asemicircular edge 504, which is interposed by theyoke 130. - As shown in
FIGS. 12-17 , theyoke 130 includes a pair ofprojections 510 extending outward from opposing top and bottom exterior surfaces 512. In this exemplary embodiment, theprojections 510 include aplateau surface 514 that is generally planar and parallel with the planar surface of the nearest top/bottom surface 512. A peripheral shape of eachprojection 510 is rounded embodying a cylindrical projection that is generally centered with a midline extending through theyoke 130. In particular, a portion of theperipheral surface 516 of eachprojection 510 is intended to contact and ride against theperipheral surface 498 of the universal 120 in order to allow pivotal motion between theyoke 130 and universal 120. Eachprojection 510 is generally centered between opposing right and leftsides 520 and distally inset from aproximal end 522. - The
proximal end 522 of theyoke 130 has semicircular in profile. In particular, theproximal end 522 includes a miniatureU-shaped channel 526 that terminates at correspondingopenings 528 extending through the left and right side surfaces 520 and into an interior of theyoke 130. Eachopening 528 is configured to allow throughput of aseparate control wire FIG. 24 ). And a height of theU-shaped channel 526 extending along the left and right side surfaces 520 is sufficient to accommodate the width of acontrol wire opening 528 and is retained within an interior space of theyoke 130 when the wire is tensioned. Tensioning of bothcontrol wires depression 540 formed into theyoke 130. - Adjacent the miniature
U-shaped channel 526 and extending through theyoke 130 is a central throughchannel 546. The central throughchannel 546 is sized to accommodate acontrol wire 1364 coupled to thepulleys 200, 210 (seeFIG. 24 ). As will be discussed in more detail hereafter, repositioning of thecontrol wire 1364 with respect to theyoke 130 andpulleys jaws 160, 170 (when theocclusion clip 102 is mounted to thejaws - In exemplary form, a distal end of the
yoke 130 include a pair ofouter retention arms planar surfaces arcuate surfaces 558. A distal most portion of eachretention arm planar surface 560 normal to the interior and exteriorplanar surfaces retention arms interior surfaces 556 having a rounded rectangular footprint slightly larger than theexterior surfaces 554 rounded rectangular footprint. Proximate the distal, rounded corners of theretention arms holes 564 that extend between the interior andexterior surfaces hole 564 is sized to receive at least one of thefirst pin 140 and thesecond pin 150 in order to pivotally mount acorresponding jaw yoke 130. In this exemplary embodiment, each throughhole 564 is sized to retain acorresponding pin yoke 130, though fits other than a friction fit may be utilized. - Referencing
FIGS. 18-21 , thejaws cams second jaws - Each
jaw proximal end 660 that transitions distally into a rectangular cross-section with anopenings 662, extending between opposing top andbottom surfaces second pins second jaws yoke 130 by pivoting about the first andsecond pins cam interior surface 670 spanning between the top andbottom surfaces cams jaws first cam 600 of thefirst jaw 160 has a rounded rectangular profile but for aU-shaped cavity 674 formed therein, with spaced apart ends 672 that are rounded. ThisU-shaped cavity 674 is configured to receive a correspondingrounded projection 676 of thesecond cam 602. Moreover,rounded shoulders 678 of thesecond cam 602 are configured to engage the rounded ends 672 of thefirst cam 600 in order to provide corresponding range of motion stops. In particular, the distal mostrounded end 672 of thefirst cam 600 will engage the distal mostrounded shoulder 678 of thesecond cam 602 to limit the pivotal motion of thejaws rounded end 672 of thefirst cam 600 will engage the proximal mostrounded shoulder 678 of thesecond cam 602 to limit the pivotal motion of thejaws first cam 600 do not engage therounded shoulders 678 of thesecond cam 602 until an end of the range of motion of thejaws first cam 600 delineating theU-shaped cavity 674 is configured to maintain contact with the surface delineating therounded projection 676 of thesecond cam 602 through the pivotal range of motion of thejaws - As part of repositioning the
jaws proximal end 660 of each jaw includes acavity 680 that is sized to receive a corresponding pair ofpulleys pulleys jaws openings 682 extends through portions of the jaws, where the throughopenings 682 are longitudinally aligned. More specifically, the throughopenings 682 are configured to receive a corresponding third orfourth pin 180, 190 that concurrently extends through the correspondingpulleys opening 682 is sized to retain acorresponding pin 180, 190 therein via a friction fit so that the pin does not rotate or move longitudinally with respect to thejaw pulleys second jaw 170, thefirst jaw 160 includes a throughopening 684 extending between theinterior surface 670 and anexterior surface 671 of the rectangular-shape profile section. This throughopening 684 is sized to receive an end of acontrol wire 1364 and allow the control wire to pass therethrough, but not so large as to allow an enlarged end of the control wire to pass therethrough. Accordingly, as thecontrol wire 1364 is tensioned, the structure delineating the throughopening 684 acts as an anchor to hold an end of the control wire in place. Thus, thepulleys - Though the foregoing exemplary embodiment has been described using four
pulleys - Extending distally past the rectangular cross-section, each
jaw exterior surface 692 and concave on aninterior surface 690. Opposing top andbottom surfaces interior surface 690 and corresponding top andbottom surfaces interior recess 700 that is sized to receive a corresponding portion of theocclusion clip 102. On the oppositeexterior surface 692, achannel 702 is sized and configured to receive arespective deployment wire openings 686 are sized to accommodate throughput of a suture retainer coupled to the leftatrial occlusion clip 102. - Referring to
FIGS. 1-25 and 48 , an exemplary assembly sequence for theexemplary end effector 100 will now be described. Initially, the control anddeployment wires clevis 110. Specifically, thelongitudinal passage 402 at theproximal end 404 of the clevis receives thewires control wires hole 410 of the clevis, while theother wires hole 412 of the clevis. After routing the wires through theclevis 110, the universal 120 is mounted to the clevis so that theprojections 450 of the universal are received within respective C-shapeddepressions 426. In order to retain the universal 120 in an engaged position with respect to the clevis, thecontrol wires enlarged openings 469 of the universal 120 and knotted or otherwise processed to enlarge the ends of each control wire sitting within arespective depression 464. Thecontrol wires first wheel control 40 so that rotation of thewheel control 40 will cause pivoting motion of the universal 120 with respect to theclevis 110 in an X-Y plan or a first degree of freedom. Likewise, theother control wires respective channel other wires opening 474 of the universal. - After routing the wires through the universal 120, the
yoke 130 is mounted to the universal so that theprojections 510 of the yoke are received within respective Y-shapeddepressions 496. In order to retain theyoke 130 in an engaged position with respect to the universal 120, thecontrol wires openings 528 of the yoke and knotted or otherwise processed to enlarge the ends of each control wire sitting on the other side of theU-shaped channel 526. Thecontrol wires second wheel control 50 so that rotation of thewheel control 50 will cause pivoting motion of theyoke 130 with respect to the universal 120 in a Y-Z plane or second degree of freedom. Conversely, theother wires channel 546 of theyoke 130. - Each
jaw yoke 130. In preparation for mounting to theyoke 130, thejaws pulleys pulleys 200 are inserted into theproximal end cavity 680 so that the openings through the pulleys are aligned with correspondingopenings 682 of thefirst jaw 160. Thereafter, the third pin 180 is inserted into theopenings 682 and through thepulleys 200 in order to mount the pulleys to thefirst jaw 160. Similarly, the second set ofpulleys 210 are inserted into theproximal end cavity 680 of thesecond jaw 170 so that the openings through the pulleys are aligned with correspondingopenings 682 of the second jaw. Thereafter, thefourth pin 190 is inserted into theopenings 682 and through thepulleys 210 in order to mount the pulleys to thesecond jaw 170. After thepulleys respective jaw control wire 1364 is threaded around thepulleys opening 684 of thefirst jaw 160. Thecontrol wire 1364 may then be processed (such as by attaching a spherical retainer) to enlarge the distal end prohibiting throughput of an end portion of the control wire through theopening 684. Likewise, thedeployment wires corresponding channels 702 of thejaws - Post preparation, each
jaw yoke 130. In exemplary form, the interiors of eachjaw openings 662 of each jaw are aligned with a respective throughhole 564 of theyoke 130. Thereafter, first andsecond pins holes 564 and through theopenings 662 so that thejaws yoke 130. The size of thepins yoke 130, but are not large enough in diameter to inhibit rotation of thejaws control wire 1364 is repositioned with respect to thepulleys cams jaws U-shaped cavity 674 of thefirst cam 600 receives therounded projection 676 of thesecond cam 602. - After the
jaws yoke 130, theocclusion clip 102 may be mounted to the jaws. In exemplary form, theocclusion clip 102 is oriented so that its parallel beams are longitudinally aligned and inset with respect to thejaws occlusion clip 102, where a portion of each retainer extends through acorresponding opening 686 of anadjacent jaw suture loop 725 extends through eachopening 686 and exits on an exterior of a respective jaw. Thereafter, arespective deployment wires respective channel 702 so that the deployment wire extends through each of thesuture loops 725. In this fashion, theocclusion clip 102 is inhibited from detaching from thejaws deployment wires openings 686 to free the occlusion clip from the jaws. And thedeployment wires control wires user control 20. - Turning to
FIGS. 1 and 26-28 , a more detailed discussion of theuser control 20, thefirst wheel control 40, thesecond wheel control 50, therepositionable lock 60, therepositionable tab 70, thelever control 80, and thegrip housing 90 follows. - The
grip housing 90 comprises respective left and rightside housing halves left side housing 1000 includes a generallyconvex exterior surface 1004 and an opposite interiorconcave surface 1006. The interior andexterior surfaces peripheral surface 1008 that delineates the general outline of theleft side housing 1000. This left sideperipheral surface 1008 cooperates with a right side peripheral surface 1010 (which bridges opposing interior andexterior surfaces peripheral surface 1008 may include a lip that is corresponding received within a recess of the right side housingperipheral surface 1010 to facilitate alignment of the housings when mounted to one another. More specifically, the right sideperipheral surface 1010 partially overlaps the left sideperipheral surface 1008 when the housings are mounted to one another as shown inFIG. 1 . - By way of example, a
first opening 1016 occurs at a distal end of the housings and is sized and shaped in a circular fashion to circumscribe and retain a proximal portion of the elongatedcylindrical shaft 30. As will be discussed in greater detail hereafter, the elongatedcylindrical shaft 30 includes longitudinal cut-outs 1392 that receive a pair ofretention plates 1026 extending from theinterior surface 1012 of theright side housing 1002. - The
second opening 1018 occurs on an underside of thehousing halves second opening 1018 is sized to accommodate a portion of thelever control 80. Inset from a distal end of the second opening is an integral,hollow axle 1028 extending from theinterior surface 1012 of theright side housing 1002. As will be discussed in more detail hereafter, a portion of thelever control 80 rotates about theaxle 1028 when the lever control is repositioned. In order to retain this portion of the lever control rotating about theaxle 1028, theleft side housing 1000 includes aretention pin 1030 that is received by thehollow axle 1028 and operates to mount adjacent portions of thehousings spring retainer projection 1032 extending from theinterior surface 1012 of theright side housing 1002. As will be discussed in more detail hereafter, a spring of thelever control 80 is mounted to thespring retainer projection 1032. In order to retain the spring mounted to thespring retainer projection 1032, theleft side housing 1000 includes aretention cylinder 1034 that is hollow and sized to receive thespring retainer projection 1032 and mount adjacent portions of thehousings - The
third opening 1020 occurs at aproximal end 1036 of thehousings repositionable tab 70. By way of example, thethird opening 1020 is circular in nature and sized to retain a cylindrical portion of therepositionable tab 70 as part of a friction fit that may be overcome by a user withdrawing the cylindrical portion from thegrip housing 90. It should be noted, however, that other shapes besides circular openings may be used as part of thethird opening 1020. As shown inFIGS. 46 and 47 , therepositionable tab 70 may embody any number of shapes including, without limitation, an hourglass shape (seeFIG. 46 ), a helical thread shape (seeFIG. 47 ), and a triangular shape that requires rotation of therepositionable tab 70 with respect to thegrip housing 90 in order to insert and extract the repositionable tab from the grip housing. - Extending distally from the
third opening 1020, theleft side housing 1000 includes alinear projection 1038, extending proximal to distal, that is configured to guide motion of a portion of thelever control 80. Generally opposite thislinear projection 1038, extending from theinterior surface 1012 of theright side housing 1002 is an oblong,hollow ridge 1040 that is sized to receive a portion of thelever control 80, yet allow this portion of the lever control to move therein within a predetermined range of motion. - Above the
second opening 1018 and extending proximally from thefourth opening 1022 of theright side housing 1002interior surface 1012 is acontrol wire guide 1042 comprising three cylindrical projections spaced apart from one another vertically to allow a first gap between the first and second projections and a second gap between the second and third projections. As will be discussed in more detail hereafter, a control wire coupled to thelever control 80 extends between the second and third projections, while a pair of deployment wires coupled to therepositionable tab 70 extends between the first and second projections. In order to ensure the control wire and deployment wires stay in the aforementioned gaps, theleft side housing 1000 includes aring 1044 extending from theinterior surface 1006 that circumscribes thecontrol wire guide 1042 to retain the wires with a respective gap. - The
fourth opening 1022 occurs on a top side of the housings halves 1000, 1002. Thisopening 1022 is sized to accommodate a portion of therepositionable lock 60. Positioned underneath the bounds of thefourth opening 1022 are complementary left andright ledges repositionable lock 60 sits. Each of thehousing halves triangular cavity 1054 that is configured to receive a portion of therepositionable lock 60. - A
fifth opening 1024 also occurs on a top side of thehousing halves fourth opening 1022. Thisfifth opening 1024 is sized to accommodate a portion of thefirst wheel control 40. In particular, a portion of thefirst wheel 1110 and thecontrol knob 1160 extend above thehousings - Adjacent the fifth opening is a
sixth opening 1052 that extends completely though the top surface of theright side housing 1002. Interposing the fifth andsixth openings right side housing 1002. Thissixth opening 1052 is sized to accommodate a portion of thesecond wheel control 50. In particular, a portion of thesecond wheel 1140 and thecontrol knob 1260 extend above thehousing 1002 in order to allow a user to manipulate the control knob and resultantly rotate the second wheel. - Extending outward from the
interior surface 1006 of theleft side housing 1000 is a pair ofvertical guides 1056 that mirror a pair ofvertical guides 1058 extending from theinterior surface 1012 of theright side housing 1002. The left sidevertical guides 1056 are adapted to contact theexterior track 1152 of thefirst wheel 1110 and allow the track to rotationally slide against the vertical guides. Similarly, the right sidevertical guides 1058 are adapted to contact theexterior track 1252 of thesecond wheel 1140 and allow the track to rotationally slide against the vertical guides. In this fashion, thevertical guides wheels pulleys vertical guides hollow cylinders interior surfaces hollow cylinder axle 1420 that extends through thewheels pulleys hollow cylinder axle 1420 is retained therein via a friction fit and the axle is unable to rotate with respect to the hollow cylinders, but still allow the wheel controls 40, 50 to be repositioned. - As discussed previously, the
user control 20 includes afirst wheel control 40 to vary the yaw of theend effector 100, while theuser control 20 further includes asecond wheel control 50 to vary the pitch of the end effector. In order to selectively inhibit manipulation of the wheel controls 40, 50, arepositionable lock 60 is also provided. A proximal end of theuser control 20 further includes arepositionable tab 70 that may be utilized to, in exemplary form, disengage a left atrial appendage (LAA)occlusion clip 102 from theend effector 100. In addition, theuser control 20 includes alever control 80 that is operative to control repositioning of the jaws of theend effector 100 with respect to one another. Several of the components of thelever control 80, the wheel controls 40, 50, and therepositionable lock 60 at least partially reside within thegrip housing 90. - As shown in
FIGS. 1 and 28-38 , the first and second wheel controls 40, 50 rotate about anaxle 1420 received within correspondingcavities hollow cylinders side housing halves axle 1420 is cylindrical in shape and extends through the center of afirst wheel 1110, afirst pulley 1120, asecond pulley 1130, and asecond wheel 1140. Thefirst wheel 1110 and thefirst pulley 1120 are components of thefirst wheel control 40, whereas thesecond wheel 1140 and thesecond pulley 1130 are components of thesecond wheel control 50. - In exemplary form, referring to
FIGS. 29 and 30 , thefirst wheel 1110 comprises a unitary structure having a generally circular shape and including acentral opening 1150 accommodating throughput of theaxle 1420. Radially outward from thisopening 1150 and partially circumscribing the opening is atrack 1152 extending outward from an exterior,side surface 1154. Adjacent this exterior,side surface 1154 is aperipheral surface 1156, with anarcuate transition surface 1158 interposing the side and circumferential surfaces. Extending radially outward from theperipheral surface 1156 is acontrol knob 1160 withindicia 1162 on the top of the control knob providing a user with an indication that rotation of thefirst wheel 1110 is operative to reposition theend effector 100 laterally within an X-Y plane. In order to transfer rotation of thefirst wheel 1110 into lateral motion of theend effector 100, the first wheel also includes a pair ofprotrusions 1166 on opposing radial sides of theopening 1150. As will be discussed in more detail hereafter, theseprotrusions 1166 are received within corresponding pockets of thefirst pulley 1120 so that rotational motion of thefirst wheel 1110 is transferred into rotational motion of the first pulley. Radially outset from theopening 1150 and one of theprotrusions 1166 are a plurality ofteeth 1170 circumferentially inset and distributed about ninety degrees of the circumference that are adapted to be engaged by therepositionable lock 60. - Referring to
FIGS. 31-33 , a second component of thefirst wheel control 40, thefirst pulley 1120, is operative to convert rotational motion of thefirst wheel 1110 into longitudinal motion of at least one of a first pair ofcontrol wires control wires first pulley 1120 using aclamp plate 1176 and aset screw 1178. In exemplary form, thefirst pulley 1120 includes a first throughopening 1180 sized and configured to receive throughput of theaxle 1420 so that the first pulley may rotate about the axle, in addition to a second through opening 1182 sized and configured to receive anupstanding cylinder 1186 of theclamp plate 1176. But the second through opening 1182 is too small to allow throughput of abacking plate 1188 of theclamp plate 1176. Accordingly, a rear of thefirst pulley 1120 includes arecess 1190 sized and configured to receive thebacking plate 1188 and inhibit rotation of the backing plate with respect to thefirst pulley 1120. The rear of thefirst pulley 1120 also includes asemi-circular spacer 1191 partially delineating the first throughopening 1180 and extending laterally away from a center of the first pulley. Thespacer 1191 is operative to provide a gap between the first andsecond pulleys - The
upstanding cylinder 1186 includes an axial throughopening 1192 that is threaded to engage the threads of theset screw 1178, as well as fourradial openings 1194 that are sized and configured to receive at least one of thecontrol wires radial openings 1194 are circular and radially distributed to be equidistantly spaced from one another about the circumference of theupstanding cylinder 1186. A first and second of theradial openings 1194 are located proximate first andsecond openings 1198 extending through awall 1200 extending laterally outward and adjacent the second throughopening 1182. - In exemplary form, the
first control wire 1172 is routed over a firstarcuate surface 1202 that extends laterally outward from thefirst pulley 1120 so that the free end of the first control wire interposes between aradial wall 1204 and afirst guide 1206. The free end of thefirst control wire 1172 is then directed through a bottom opening (second opening) 1198 and directed through the nearestradial opening 1194. After passing beyond the nearest radial opening, the free end of thefirst control wire 1172 is passed through the radial opening opposite (180 degrees opposed) from the radial opening the first control wire already extends through. Similarly, thesecond control wire 1174 is routed over a secondarcuate surface 1212 that extends laterally outward from thefirst pulley 1120 so that the free end of the second control wire interposes between theradial wall 1204 and asecond guide 1216. The free end of thesecond control wire 1174 is then directed through a top opening (first opening) 1198 and directed through the nearestradial opening 1194. After passing beyond the nearest radial opening, the free end of thesecond control wire 1174 is passed through the radial opening opposite (180 degrees opposed) from the radial opening the first control wire already extends through. After bothcontrol wires radial openings 1194, theset screw 1178 is threaded into the axial throughopening 1192 to crimp the control wires in place. This crimping operation is undertaken while bothcontrol wires end effector 100 is in a neutral position within the X-Z plane. - Turning to
FIGS. 1 and 34-38 , thesecond wheel 1140 of thesecond wheel control 50 comprises a unitary structure having a generally circular shape and including acentral opening 1250 accommodating throughput of theaxle 1420. Radially outward from thisopening 1250 and partially circumscribing the opening is atrack 1252 extending outward from an exterior,side surface 1254. Adjacent this exterior,side surface 1254 is aperipheral surface 1256, with anarcuate transition surface 1258 interposing the side and circumferential surfaces. Extending radially outward from theperipheral surface 1256 is acontrol knob 1260 withindicia 1262 on the top of the control knob providing a user with an indication that rotation of thesecond wheel 1140 is operative to reposition theend effector 100 vertically within a Y-X plane. In order to transfer rotation of thesecond wheel 1140 into vertical motion of theend effector 100, on an opposite side of the second wheel is acylindrical projection 1266 with three spokes equidistantly spaced from one another and radially extending around theopening 1250. As will be discussed in more detail hereafter, thecylindrical projection 1266 and spokes are received within corresponding pockets of thesecond pulley 1130 so that rotational motion of thesecond wheel 1140 is transferred into rotational motion of the second pulley. Radially outset from theopening 1250 and thecylindrical projection 1266 are a plurality ofteeth 1270 circumferentially inset and distributed about ninety degrees of the circumference that are adapted to be engaged by therepositionable lock 60. - A second component of the
second wheel control 50, thesecond pulley 1130, is operative to convert rotational motion of thesecond wheel 1140 into longitudinal motion of at least one of a first pair ofcontrol wires control wires second pulley 1130 using aclamp plate 1276 and aset screw 1278. In exemplary form, thesecond pulley 1130 includes a first throughopening 1280 sized and configured to receive throughput of theaxle 1420 so that the second pulley may rotate about the axle, in addition to a second through opening 1282 sized and configured to receive anupstanding cylinder 1286 of theclamp plate 1276. But the second through opening 1282 is too small to allow throughput of abacking plate 1288 of theclamp plate 1276. Accordingly, a front of thesecond pulley 1130 includes arecess 1290 sized and configured to receive thebacking plate 1288 and inhibit rotation of the backing plate with respect to thesecond pulley 1130. The front of thesecond pulley 1130 also includes adepression 1291 that is sized to receive thecylindrical projection 1266 and the spokes of thesecond wheel 1140. - The
upstanding cylinder 1286 of theclamp plate 1276 includes an axial throughopening 1292 that is threaded to engage the threads of theset screw 1278, as well as fourradial openings 1294 that are sized and configured to receive at least one of thecontrol wires radial openings 1294 are circular and radially distributed to be equidistantly spaced from one another about the circumference of theupstanding cylinder 1286. A first and second of theradial openings 1294 are located proximate first andsecond openings 1298 extending through awall 1300 extending laterally outward and adjacent the second throughopening 1282. - In exemplary form, the
first control wire 1272 is routed over a firstarcuate surface 1302 that extends laterally outward from thesecond pulley 1140 so that the free end of the first control wire interposes between aradial wall 1304 and afirst guide 1306. The free end of thefirst control wire 1272 is then directed through a bottom opening (second opening) 1298 and directed through the nearestradial opening 1294. After passing beyond the nearest radial opening, the free end of thefirst control wire 1272 is passed through the radial opening opposite (180 degrees opposed) from the radial opening the first control wire already extends through. Similarly, thesecond control wire 1274 is routed over a secondarcuate surface 1312 that extends laterally outward from thesecond pulley 1140 so that the free end of the second control wire interposes between theradial wall 1304 and asecond guide 1316. The free end of thesecond control wire 1274 is then directed through a top opening (first opening) 1298 and directed through the nearestradial opening 1294. After passing through the nearest radial opening, the free end of thesecond control wire 1274 is passed through the radial opening opposite (180 degrees opposed) from the radial opening the first control wire already extends through. After bothcontrol wires radial openings 1294, theset screw 1278 is threaded into the axial throughopening 1292 to crimp the control wires in place. This crimping operation is undertaken while bothcontrol wires end effector 100 is in a neutral position within the Y-Z plane. After crimping, rotation of thewheels end effector 100. And these positions when achieved by user manipulation to a predetermined location may be retained using therepositionable lock 60. - Turning to
FIGS. 39-41 , therepositionable lock 60 includes athumb button 1320 that is spring biased with respect to abase plate 1322. In exemplary form, thethumb button 1320 includes ahollow cavity 1334 open on an underneath side of thumb button that is sized to receive a portion of aspring 1324 and apylon 1326. Assembly of therepositionable lock 60 includes feeding atapered end 1328 of thepylon 1326 through anopening 1330 extending through thebase plate 1322 so that aflange 1332 at an opposing end of the pylon inhibits complete throughput of the pylon. After having thepylon 1326 extend through thebase plate 1322, thespring 1324 is positioned to circumscribe the majority of the longitudinal length of the pylon. Thereafter, thetapered end 1328 of thepylon 1326, along with a portion of thespring 1324, is inserted into thehollow cavity 1334 open on an underneath side ofthumb button 1320. - When the
repositionable lock 60 is mounted to thehousings base plate 1322 is seated upon the complementary left andright ledges repositionable lock 60 in a biased state, thefourth opening 1022 lateral or widthwise dimension is smaller than the lateral or widthwise dimension of abase 1336 of thethumb button 1320, thereby precluding vertical removal of the thumb button (andrepositionable lock 60 internal components) from the interior of thehousings housings ledges peripheral surfaces repositionable lock 60 components therebetween (but for athump pad 1340 of the thumb button 1320). A portion of eachhousing fourth opening 1022 operate as overhangs so that thetriangular cavity 1054 of each housing is longitudinally aligned with correspondingtriangular projections 1338 of thethumb button 1320. In this fashion, therepositionable lock 60 is longitudinally repositionable (in a proximal-distal direction) with respect to thehousings triangular projections 1338 of thethumb button 1320 are received within thetriangular cavities 1054 of thehousings repositionable lock 60 is beyond an area of travel of the first and second wheel controls 40, 50. But when thethump pad 1340 of thethumb button 1320 is depressed and moved distally, causing the thumb button to slide on top of theledges peripheral surfaces triangular projections 1338 are removed from thetriangular cavities 1054 of thehousings repositionable lock 60, a distaltapered end 1342 of thebase plate 1322 interposes two adjacent teeth of each plurality ofteeth wheels pulleys repositionable lock 60 is operative to lock the vertical position and the lateral position of theend effector 100. It is envisioned that while in this locked position, theend effector 100 may manipulated using thelever control 80 to reposition thejaws end effector 100 to open theocclusion clip 102. - Referring to
FIGS. 42-44 , thelever control 80 comprises ahandle 1350 pivotally mounted to the hollow axle 1028 (seeFIG. 28 ) extending from theinterior surface 1012 of theright side housing 1002. Atrigger 1352 is concurrently pivotally mounted to thehollow axle 1028 and interposes spaced apartloops 1354 of thehandle 1350. Thetrigger 1352 is repositionable with respect to thehandle 1350 in order to lock and selectively unlock a position of the handle with respect to aslide arm 1356. In exemplary form, theslide arm 1356 is pivotally mounted to thehandle 1350 using apin 1358 and is concurrently mounted to abobbin 1360 that is configured to slide within the oblong,hollow ridge 1040 of theright side housing 1002 in proximal and distal directions. Aspring 1362, mounted to theslide arm 1356 and to thespring retainer projection 1032 of theright side housing 1002, operates to bias theslide arm 1356 in its most distal position. But this spring bias may be overcome by a user pulling upward on the handle 1350 (toward the second opening 1018), thereby causing the handle to pivot and reposition theslide arm 1356 proximally. As theslide arm 1356 is repositioned, so too is thebobbin 1360 and acontrol wire 1364 mounted to the bobbin. More specifically, as thebobbin 1360 is repositioned proximally from thehandle 1350 being pulled toward thehousings control wire 1364 is repositioned proximally as a result of being placed under greater tension. Upon thebobbin 1356 reaching near or at the most proximal of its range of motion, thetrigger 1352 engages theslide arm 1356 to inhibit motion that would result in the bobbin moving distally. In this fashion, thetrigger 1352 operates to lock the position of theslide arm 1356 and thebobbin 1360, which in exemplary form corresponds to theend effector 100 opening thejaws occlusion clip 102 for positioning about a left atrial appendage. - The
handle 1350 has a generally arcuate shape, with a concave rear profile and a convex front profile. On this front profile are a series of raisedjuts 1366 that more readily allow a user to grip thehandle 1350. The rear profile is majorly delineated by a pair of spaced apart struts 1368 that are interposed by a series ofribs 1370 that cooperate to form a series of hollows. Eachstrut 1368 includes a through orifice aligned with the other strut and sized to receive thepin 1358 about which theslide arm 1356 rotates. And eachstrut 1368 terminates at a spaced apartloop 1354 that facilitates mounting thehandle 1350 to thehousings slide arm 1356. - In exemplary form, the
slide arm 1356 includes ahead 1372 with an orifice that receives thepin 1358, where the head is connected to abody 1374 of the slide arm vianeck 1376. Proximate where thehead 1372 andneck 1376 join one another on the top side of theslide arm 1356 is a V-shapedcavity 1380, which is accompanied by acatch 1382 formed into the head. As will be discussed in more detail hereafter, the V-shapedcavity 1380 is intended to receive a portion of arider 1384 of thetrigger 1352 as the handle is in an extended position. But as thehandle 1350 is rotated upward, therider 1384 slides against the top surface of theslide arm 1356 and out of the V-shapedcavity 1380 and becomes seated within thecatch cavity 1382 when the handle is fully or almost fully brought adjacent thehousings 1000, 1002 (indicative of theslide arm 1356 being positioned proximally to tension thecontrol wire 1364 and, in exemplary form, operative to move thejaws housings forward end 1386 of thetrigger 1352 is depressed, thereby causing therider 1384 to move out of thecatch cavity 1382 and into the V-shapedcavity 1380. When this occurs (in addition to slacking thecontrol wire 1364 and move thejaws handle 1350, the spring bias resulting from thespring 1362 being in tension causes theslide arm 1356 to move distally and pivot about thehandle 1350, thereby moving the handle away from thehousings shaft assembly 30 follows. - Referring to
FIGS. 1, 22-25, and 45 , theshaft assembly 30 couples theend effector 100 to theuser control 20. In exemplary form, the shaft assembly includes anelongated shaft 1390 having a pair of longitudinal cut-outs 1392 sized to receive the pair ofretention plates 1026 extending from theinterior surface 1012 of theright side housing 1002. Theretention plates 1026 mount theshaft assembly 30 to theuser control 20 and also operate to inhibit proximal-distal repositioning of the shaft assembly independent of the user control. Theelongated shaft 1390 is cylindrical in shape and extends in a generally linear direction. An interior of theelongated shaft 1390 is hollow and includes opposing proximal and distalcircular openings 1394 at each end. Theproximal opening 1394 is sized to allow insertion of a wire alignment guide 1398 (which also has corresponding cut-outs to receive the retention plates 1026) having three dedicated throughchannels first channel 1406 receives thecontrol wires first pulley 1120. Asecond channel 1408 receives thedeployment wires repositionable tab 70, as well as receivingcontrol wire 1364 mounted to thebobbin 1360. Finally, thethird channel 1410 receives thecontrol wires second pulley 1130. Thewire alignment guide 1398 need not extend the entire length of theelongated shaft 1390 so that the distal end opening 1396 provides for throughput of all of thewires clevis 110, which circumscribes and mounts to the elongated shaft via friction fit. More specifically, thelongitudinal passage 402 at theproximal end 404 of theclevis 110 is sized to receive the distal end of theelongated shaft 1390. In this manner, thecontrol wires hole 410 of theclevis 110, while theother wires hole 412 of the clevis. Downstream from theclevis 110, thecontrol wires enlarged openings 469 of the universal 120 and correspondingly mounted to the universal. Likewise, thecontrol wires respective channel other wires opening 474 of the universal. Downstream from the universal 120, thecontrol wires openings 528 of theyoke 130 and correspondingly mounted to the yoke. Conversely, theother wires channel 546 of theyoke 130. Downstream from theyoke 130, thecontrol wire 1364 is mounted to thepulleys deployment wires openings 674 of thejaws - Turning back to
FIGS. 26-45 , assembly of theexemplary user control 20 will be described in more detail. In exemplary form, thewires elongated shaft 1390 and thewire alignment guide 1398 and into the interior of thehousings deployment wires user control 20 and attached to therepositionable tab 70. In exemplary fashion, therepositionable tab 70 may be frictionally seated within theproximal opening 1020 or may be otherwise attached so that removal of the repositionable tab requires rotational motion. In addition to thedeployment wires deployment wire 1364. By way of example, thetrigger 1352 and thehandle 1350 are aligned so that thehollow axle 1028 of theright side housing 1002 extends through both components. Likewise, theslide arm 1356 is pivotally mounted to thehandle 1350 via thepin 1358. An opposing portion of theslide arm 1356 is mounted to thebobbin 1360 so that a portion of the bobbin is seated within a cavity within theright side housing 1002 delineated by thehollow ridge 1040. Thedeployment wire 1364 is mounted to thebobbin 1360, while theslide arm 1356 and bobbin are spring biased by way of engagement between thespring 1362, which is also mounted to theright side housing 1002. In this fashion, thelever control 80 is spring biased and operative to open and close thejaws - Four of the
control wires second wheel 1140 to extend through thesixth opening 1052 of theright side housing 1002. The axle is positioned to extend through the center of thesecond wheel 1140 and be received within thehollow cylinder 1062 of thehousings housings axle 1420 receives in succession thesecond pulley 1130, thefirst pulley 1120, and thefirst wheel 1110. After thepulleys axle 1420, thecontrol wires end effector 100 is in a yaw and pitch neutral position. As discussed previously, twocontrol wires respective pulley control wires clamp plate set screw end effector 100, the user engages thecontrol knob 1160 of thefirst wheel 1110 to rotate the first wheel clockwise or counterclockwise. In exemplary fashion, clockwise rotation of the first wheel 1110 (moving the control knob proximally) operates to pivot the universal 120 with respect to theclevis 110 to the right, whereas counterclockwise rotation of the first wheel (moving thecontrol knob 1260 distally) operates to pivot the universal with respect to the clevis to the left. Moreover, when a user decides to change the pitch of theend effector 100, the user engages thecontrol knob 1260 of thesecond wheel 1140 to rotate the second wheel clockwise or counterclockwise. In exemplary fashion, clockwise rotation of the second wheel 1140 (moving thecontrol knob 1260 proximally) operates to pivot theyoke 130 upward with respect to the universal 120, whereas counterclockwise rotation of the second wheel (moving the control knob distally) operates to pivot theyoke 130 downward with respect to the universal 120. - In order to retard unwanted rotation of the first and
second wheels repositionable lock 60 includes seating thebase plate 1336 upon the correspondingledges 1048, 1050 (initially upon the right side ledge 1048) after already having assembled the repositionable lock as discussed above. When installed properly, only thethumb pad 1340 of thethumb button 1320 extends above thehousings repositionable lock 60 are available, where a most distal position of the repositionable lock places thebase plate 1342 to interpose correspondingteeth wheels end effector 100 in position within the X-Y and Y-Z planes or degrees of freedom. Therepositionable lock 60 may be disengaged simply by moving thethumb pad 1340 proximally until thebase plate 1342 no longer engages correspondingteeth wheels - After the associated components have been installed and mounted to the
right side housing 1002, theleft side housing 1000 may be repositioned to close the interior and contain the desired portions of the components. In order to ensure continued closure of thehousings - The following is an exemplary procedure for utilizing the exemplary
surgical tool 10 to deploy theocclusion clip 102 to occlude a left atrial appendage (LAA). Initially, an incision is made on either the left or right side of the chest wall in an intercostal space that is appropriate for the desired angle of approach to a LAA. The incision may be made through the chest wall or through the abdomen (or through the back) as part of various procedures that include, without limitation, an open sternotomy, a left thoracotomy, a right thoracotomy, a left port, a right port, a subxiphoid approach, and a transdiaphragmatic approach. Post incision, a trocar (e.g., 12 millimeter or smaller) may be inserted through the incision to extend into the thoracic cavity. In certain instances, it may be preferred to insufflate the thoracic space subsequent to trocar insertion using known techniques. Using at least one of the incision and trocar, surgical instruments are introduced into the thoracic space in order to perform a series of dissections, including dissection of the pericardium, to provide egress to the LAA. After having access to the LAA, theend effector 100 of thesurgical tool 10 may be inserted into the thoracic cavity by way of the incision or trocar. - The
end effector 100 is passed through the trocar or incision and the user manipulates the user controls 20 to navigate the end effector proximate the LAA. By way of example, thefirst wheel control 40 is operative to vary the yaw of theend effector 100 within an X-Y plane (e.g., depending upon the frame of reference, thefirst wheel control 40 provide lateral adjustability of theend effector 100 with respect to thehousings 1000, 1002), as well as thesecond wheel control 50 being operative to vary the pitch of the end effector within an Y-Z plane (e.g., depending upon the frame of reference, thesecond wheel control 50 provides up and down adjustability of the end effector with respect to the housings). Specifically, a user grasping theuser control 20 is able to rotate thefirst wheel 1110 to change the lateral position of theend effector 100, to which theLAA occlusion clip 102 is mounted, by tensioning acontrol wire clevis 110 and mounted to the universal 120. Likewise, the user grasping theuser control 20 is able to rotate thesecond wheel 1140 to change the vertical position of theend effector 100 by tensioning acontrol wire clevis 110 and universal 120 that is mounted to theyoke 130. If desired, the user of thesurgical tool 10 may use thethumb button 1320 of therepositionable lock 60 to lock theend effector 100 in place (to fix the X-Y and Y-Z orientations) to create a single position, rigidsurgical tool 10. After navigating theLAA occlusion clip 102 proximate the LAA, the occlusion clip is opened prior to deployment on the LAA. - Opening the
LAA occlusion clip 102 is carried out by actuating thelever control 80. In particular, thehandle 1350 is pivotally repositioned toward thehousings control wire 1364 and cause theend effector 100 to further separate itsjaws clip 102. Post opening of theLAA occlusion clip 102, the clip is advanced from a side of the LAA, proximate the base of the LAA, to ensure an entire circumference of the LAA interposes corresponding occlusion surfaces of the clip. It should be noted that forceps may be used to grasp a portion of the LAA when positioning theLAA occlusion clip 102. After theclip 102 has been positioned at the base of the LAA, with the LAA interposing corresponding occlusion surfaces of the clip, the user of thesurgical tool 10 may close theclip 102 to sandwich the LAA between the occlusion surfaces. - Closing the
LAA occlusion clip 102 is also carried out by actuating thelever control 80. Specifically, the user depresses thetrigger 1352 to allow the handle 1352 (which is biased to move away from thehousings 1000, 1002) to reposition away from thehousings handle 1352 away from thehousings control wire 1364 is repositioned and facilitates thejaws end effector 100 moving closer to one another (from the bias of theclip 102 while the clip is mounted to the end effector 100), thereby sandwiching the clip around the LAA without piercing the LAA. It should be noted that various steps may be undertaken to ensure the entire periphery of a portion of LAA is sandwiched by theclip 102 such as, without limitation, direct visual verification and utilization of a transesophageal echocardiogram. If any problems are determined with respect to clip 102 placement, the opening and closing clip sequence may be repeated to adjust the positioning of the clip with respect to the LAA. Upon closing theLAA occlusion clip 102 around a periphery of a portion of the LAA, proximate the LAA base, as well as confirming the placement of the closed clip being operative to occlude the LAA, the surgeon may release the clip from theend effector 100. - To release the
clip 102 from theend effector 100, the user removes therepositionable tab 70 from the proximal end of theuser control 20. This removal of therepositionable tab 70 causes thedeployment wires suture loops 725. When the engagement with thesuture loops 725 is discontinued, theocclusion clip 102 is no longer fastened to thejaws 160, 170 (i.e., the jaws can be opened and closed without repositioning the clip). As discussed previously, therepositionable tab 70 may be withdrawn from theuser control 20 in a straight pull fashion by overcoming a friction fit force or may be withdrawn via other movements including, without limitation, rotation and a combination of rotation and a straight pull that may make use of threads or detents. After disengagement between theocclusion clip 102 and theend effector 100, the end effector is removed from the cardiac space. - Removal of the
end effector 100 from the patient's body is controlled by the user. Because theend effector 100 is open-ended, there is no need to reposition the end effector upward along the LAA because the end effector can be withdrawn laterally, thus reducing the potential for contact between the end effector and the LAA. In other words, theend effector 100 may be removed from around the LAA without having a tip of the LAA passing between thejaws end effector 100 from the cardiac and thoracic space, the user manipulates theuser control 20 and causes repositioning of theend effector 100 to allow withdrawal from the patient's body cavity via the incision or trocar. By way of example, it is envisioned that the user repositions the first and second wheel controls 40, 50 in order to longitudinally align theend effector 100 with theshaft assembly 30 prior to removing the end effector through the trocar or incision. - Following from the above description and invention summaries, it should be apparent to those of ordinary skill in the art that, while the methods and apparatuses herein described constitute exemplary embodiments of the present invention, it is to be understood that the inventions contained herein are not limited to the above precise embodiment and that changes may be made without departing from the scope of the invention as defined by the following proposed points of novelty. Likewise, it is to be understood that it is not necessary to meet any or all of the identified advantages or objects of the invention disclosed herein in order to fall within the scope of the invention, since inherent and/or unforeseen advantages of the present invention may exist even though they may not have been explicitly discussed herein.
Claims (25)
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PCT/US2016/027231 WO2017011042A1 (en) | 2015-07-14 | 2016-04-13 | Surgical tool |
JP2016101028A JP6821328B2 (en) | 2015-07-14 | 2016-05-20 | Surgical tools |
CN202311150705.7A CN117322938A (en) | 2015-07-14 | 2016-06-13 | Surgical tool |
CN201610412383.2A CN106344097B (en) | 2015-07-14 | 2016-06-13 | Surgical tool |
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BR102016016206-8A BR102016016206B1 (en) | 2015-07-14 | 2016-07-12 | MEDICAL INSTRUMENT |
US16/901,444 US20200305884A1 (en) | 2015-07-14 | 2020-06-15 | Surgical tool |
JP2021000981A JP2021058703A (en) | 2015-07-14 | 2021-01-06 | Method for deploying occlusion clip |
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WO2018175651A1 (en) * | 2017-03-21 | 2018-09-27 | Teleflex Medical Incorporated | Clip applier having stabilizing member |
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US20170014135A1 (en) | 2015-07-14 | 2017-01-19 | Keith Edward Martin | Surgical tool |
US20200205846A1 (en) * | 2017-07-17 | 2020-07-02 | Medrobotics Corporation | Surgical tools |
US11717301B2 (en) | 2019-09-25 | 2023-08-08 | Lsi Solutions, Inc. | Minimally invasive occlusion device and methods thereof |
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Also Published As
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JP2017018576A (en) | 2017-01-26 |
EP3117782A1 (en) | 2017-01-18 |
BR102016016206B1 (en) | 2022-11-16 |
US9883867B2 (en) | 2018-02-06 |
CN117322938A (en) | 2024-01-02 |
WO2017011042A1 (en) | 2017-01-19 |
BR102016016206A2 (en) | 2021-04-20 |
CN106344097B (en) | 2023-10-03 |
JP2021058703A (en) | 2021-04-15 |
EP3117782B1 (en) | 2018-09-12 |
US20170014131A1 (en) | 2017-01-19 |
US20200305884A1 (en) | 2020-10-01 |
JP6821328B2 (en) | 2021-01-27 |
CN106344097A (en) | 2017-01-25 |
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