# US 2013/0158566 A1 · Rotational mechanism for endoscopic devices

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- Number: US 2013/0158566 A1
- Document ID: US20130158566A1
- Status: Published application
- Kind: A1
- Application number: 13/713,549
- Filed: 2012-12-13
- Published: 2013-06-20
- Earliest claimed: 2011-12-15
- Assignees: Boston Scientific Scimed, Inc.
- Inventors: Colby HARRIS; Gary JORDAN
- Web page: https://patentgrep.com/patent/US20130158566A1

## CPC

- A61B 17/08: Wound clamps {or clips, i.e. not or only partly penetrating the tissue (suture bridges A61B17/0466); Devices for bringing together the edges of a wound}
- A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)}
- A61B 17/1285: {for minimally invasive surgery}
- A61B 17/07207: {the staples being applied sequentially}
- A61B 2017/0034: {adapted to be inserted through a working channel of an endoscope}
- A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)}
- A61B 2017/12004: {for haemostasis, for prevention of bleeding}
- A61B 2017/2926: {Details of heads or jaws}
- A61B 2017/2927: {the angular position of the head being adjustable with respect to the shaft}
- A61B 2017/2929: {with a head rotatable about the longitudinal axis of the shaft}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A medical device includes a flexible member extending from a handle at a proximal end to a distal end sized and shaped for insertion to a target position in a living body and having a first channel extending longitudinally therethrough in combination with an elongated rotation tube positioned in the first channel and being rotatable relative to the flexible member and a rotation drive device at a distal end of the rotation tube, a proximal end of the rotation drive device being permanently attached to the rotation tube, a distal end of the rotation drive device having a first protrusion extending distally therefrom and a drive element having a substantially cylindrical shape with a groove on an inner wall thereof mating with the first protrusion of the rotation drive device, the drive element configured to transmit rotational movement of the rotation tube to an end effector connected to a distal end thereof to rotate the rotation tube relative to the flexible member.

## Claims

### Claim 1

A medical device, comprising:
a flexible member extending from a handle at a proximal end to a distal end sized and shaped for insertion to a target position in a living body and having a first channel extending longitudinally therethrough;
an elongated rotation tube positioned in the first channel and being rotatable relative to the flexible member; and
a rotation drive device at a distal end of the rotation tube, a proximal end of the rotation drive device being associated with the rotation tube, a distal end of the rotation drive device having a first protrusion extending distally therefrom and a drive element having a substantially cylindrical shape with a groove on an inner wall thereof mating with the first protrusion of the rotation drive device, the drive element configured to transmit rotational movement of the rotation tube to an end effector connected to a distal end thereof to rotate the end effector relative to the flexible member.

### Claim 2 (depends on 1)

The device of claim 1, wherein the end effector comprises a bushing having a proximal end connected to the distal end of the drive element, a distal end and a channel extending therethrough, the bushing comprising a plurality of arms extending distally from the distal end, the arms being maintained by a bushing support in a connection configuration in which distal ends of the arms engage a capsule to couple the capsule to the flexible member, the arms being biased toward a release configuration in which engagement surfaces at distal ends thereof are retracted radially into the channel to release the capsule from the flexible member.

### Claim 3 (depends on 2)

The device of claim 2, wherein the drive element is permanently attached to a proximal end of the bushing.

### Claim 4 (depends on 1)

The device of claim 1, further comprising a socket formed as a substantially cylindrical shell positioned over at least a portion of an outer surface of the drive element.

### Claim 5 (depends on 2)

The device of claim 2, further comprising a bushing support slidably received within the channel of the bushing supporting the first and second arms to extend radially outward when in a first configuration.

### Claim 6 (depends on 4)

The device of claim 4, wherein the drive element comprises a circumferential groove on an outer wall thereof configured to lockingly engage the socket to prevent axial movement of the drive element relative to the flexible member while allowing rotational movement of the drive element relative to the flexible member.

### Claim 7 (depends on 1)

The device of claim 1, further comprising a substantially cylindrical restraint permanently engaging a second protrusion formed on a proximal end of the rotation drive device, the restraint being slidably received over a distal portion of the rotation tube.

### Claim 8 (depends on 7)

The device of claim 7, wherein the restraint is locked to the rotation tube by one of a friction fit, a weld, and adhesive.

### Claim 9 (depends on 1)

The device of claim 1, wherein the end effector includes a clipping device, the device further comprising a control wire inserted through the rotation tube, a proximal end of the control wire being actuatable by a user and a distal end of the control wire being connected to the clipping device.

### Claim 10 (depends on 1)

The device of claim 1, further comprising an anchor block positioned over an outer surface of the rotation tube within the handle, the anchor block being slidable within a predetermined portion of the handle to affect longitudinal movement of the rotation tube relative to the handle.

### Claim 11 (depends on 10)

The device of claim 10, wherein the anchor block is configured and dimensioned to prevent rotation of the rotation tube relative to the handle.

### Claim 12 (depends on 1)

The device of claim 1, further comprising a coil anchor attached to an outer surface of the flexible member and locking an axial position of the flexible member relative to the handle.

### Claim 13

A system for performing a medical procedure, comprising:
a flexible member extending from a handle at a proximal end to a distal end sized and shaped for insertion to a target position in a living body and having a first channel extending longitudinally therethrough;
an elongated rotation tube positioned in the first channel and being rotatable relative to the flexible member;
a rotation drive device at a distal end of the rotation tube, a proximal end of the rotation drive device being associated with the rotation tube, a distal end of the rotation drive device having a first protrusion extending distally therefrom;
a drive element having a substantially cylindrical shape with a groove on an inner wall thereof mating with the first protrusion of the rotation drive device, the drive element being configured to transmit rotational movement of the rotation tube to a medical device connected to a distal end thereof, wherein the rotation tube is rotatable relative to the flexible member; and
an end effector attached to a distal end of the drive element.

### Claim 14 (depends on 13)

The system of claim 13, wherein the end effector comprises a bushing having a proximal end coupled to the flexible member, a distal end releasably coupled to a capsule and a channel extending therethrough, the bushing comprising a plurality of arms extending proximally from the distal end, the arms being maintained by a bushing support in a connection configuration in which distal ends of the arms engage a capsule of the end effector to couple the capsule to the flexible member, the arms being biased toward a release configuration in which engagement surfaces at distal ends thereof are retracted radially into the channel, the bushing being configured to removably engage the first protrusion of the rotation drive device so that the bushing is pivotable relative to a longitudinal axis of the rotation drive device.

### Claim 15 (depends on 14)

The system of claim 14, wherein the drive element is permanently attached to a proximal end of the bushing.

### Claim 16 (depends on 14)

The system of claim 14, further comprising a socket formed as a substantially cylindrical shell positioned over at least a portion of an outer surface of the drive element.

### Claim 17 (depends on 14)

The system of claim 14, further comprising a bushing support slidably received within the channel of the bushing, the bushing support, in a first configuration, supporting the first and second arms in a radially outward position to lock the capsule to the bushing.

### Claim 18 (depends on 16)

The system of claim 16, wherein the drive element comprises a circumferential groove on an outer wall thereof, the circumferential groove being configured to lockingly engage the socket to prevent axial movement of the drive element relative to the flexible member while allowing rotational movement of the drive element relative to the flexible member.

### Claim 19 (depends on 13)

The system of claim 13, further comprising a substantially cylindrical restraint permanently engaging a second protrusion formed on a proximal end of the rotation drive device, the restraint being slidably received over a distal portion of the rotation tube.

### Claim 20 (depends on 19)

The system of claim 19, wherein the rotation tube restraint is locked to the rotation tube by one of a friction fit, a weld, and adhesive.

### Claim 21 (depends on 13)

The system of claim 13, wherein the end effector includes a clipping device, the device further comprising a control wire inserted through the rotation tube, a proximal end of the control wire being actuatable by a user and a distal end of the control wire being connected to the clipping device.

### Claim 22 (depends on 13)

The system of claim 13, further comprising an anchor block positioned over an outer surface of the rotation tube within the handle, the anchor block being slidable within a predetermined portion of the handle to affect longitudinal movement of the rotation tube relative to the handle, wherein the anchor block is configured and dimensioned to prevent rotation of the rotation tube relative to the handle.

### Claim 23 (depends on 13)

The system of claim 13, further comprising a coil anchor attached to an outer surface of the flexible member and locking an axial position of the flexible member relative to the handle while facilitating rotation of the flexible member relative to the handle.

### Claim 24

A method for deploying a medical device in a living body, comprising the steps of
advancing a medical device to a target position in a living body, the medical device comprising a flexible member extending from a handle at a proximal end to a distal end sized and shaped for insertion to a target position in a living body and having a first channel extending longitudinally therethrough, an elongated rotation tube positioned in the first channel and being rotatable relative to the flexible member, a rotation drive device at a distal end of the rotation tube, a proximal end of the rotation drive device being associated with the rotation tube, a distal end of the rotation drive device having a first protrusion extending distally therefrom, and a drive element having a substantially cylindrical shape with a groove on an inner wall thereof mating with the first protrusion of the rotation drive device, the drive element being configured to transmit rotational movement of the rotation tube to a medical device connected to a distal end thereof, wherein the rotation tube is rotatable relative to the flexible member; and
performing a target medical procedure using the medical device connected to the drive element.

### Claim 25 (depends on 24)

The method according to claim 24, wherein a tissue clipping device is connected to the drive element to perform a tissue clipping procedure.
