Multi-functional medical device

Patent metadata

Field	Value
Publication number	US-9675369-B2
Application number	US-31474908-A
Country	US
Kind code	B2
Filing date	Dec 16, 2008
Priority date	Dec 18, 2007
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

An embodiment of a medical device includes a proximal handle, a distal end effector, an elongate member connecting the end effector to the handle, and a sheath enclosing at least a portion of the elongate member. The handle may include a first mechanism coupled to one of the sheath and the elongate member to move the sheath relative to the elongate member, a second mechanism coupled to the elongate member to rotate the elongate member relative to the handle, and a locking mechanism coupled to the first mechanism to hold the first mechanism in a default position. Embodiments also include methods of positioning the medical device to perform a medical procedure.

First claim

We claim:

1. A medical device, comprising:
a single handle having a housing located at a proximal end of the device;
a distal end effector;
an elongate member connecting the end effector to the handle;
a sheath enclosing at least a portion of the elongate member; the single handle comprising:
a first actuator coupled to one of the sheath and the elongate member to move the sheath relative to the elongate member, wherein the first actuator is moveable along an axis perpendicular to a longitudinal axis of the sheath, the first actuator including a first rotatable member, a second rotatable member coupled to the first rotatable member, and a linear translatable member, wherein the first rotatable member extends radially outwardly of the second rotatable member relative to the longitudinal axis of the sheath, and
a second actuator coupled to the elongate member to rotate the elongate member and the end effector relative to the handle, and
wherein, in a first state, the second rotatable member is engaged with a portion of the handle housing such that the first and second rotatable members are prevented from rotating, and in a second state, the second rotatable member is disengaged from the portion of the handle housing and the first rotatable member engages the linear translatable member.

2. The device of claim 1 , wherein the first rotatable member is a first gear and the linear translatable member is a second gear.

3. The device of claim 1 , wherein the first rotatable member is positioned for actuation by a thumb or finger of one hand of a user.

4. The device of claim 3 , wherein the second actuator is positioned for actuation by a thumb or finger of the one hand, other than the thumb or finger for actuation of the first rotatable member.

5. The device of claim 1 , wherein the first rotatable member rotates along an axis perpendicular to the longitudinal axis of the sheath.

6. The device of claim 1 , wherein the second actuator is a knob that rotates about the longitudinal axis of the sheath.

7. The device of claim 6 , wherein the knob is at least partially exposed on the handle.

8. The device of claim 1 , wherein the second actuator engages one of a pinch vise, a clip, a staple, and a clamp that fixedly retains the elongate member.

9. A method of positioning a medical device to perform a medical procedure, comprising:
with a distal end effector of a medical device positioned within a sheath of the medical device, advancing the distal end effector proximate to a treatment site within a body lumen of a patient, wherein the end effector is connected to a handle of the medical device via an elongate member positioned at least partially within the sheath;
moving a first actuator from a first state toward a second state by depressing a first rotatable member of the first actuator along an axis perpendicular to the longitudinal axis of the sheath, wherein in the first state, a second rotatable member of the first actuator is engaged with a portion of a housing of the handle, and wherein in the second state, the second rotatable member is disengaged from the portion of the handle housing and the first rotatable member engages a linear translatable member of the first actuator;
extending the end effector distally of the sheath by rotating the first rotatable member and axially advancing the linear translatable member of the first actuator with a thumb or finger of a hand of an operator; and
actuating a second actuator of the handle with a thumb or a finger of the hand of the operator to rotate the end effector about a longitudinal axis of the sheath and relative to the handle.

10. The method of claim 9 , wherein the thumb or finger rotates the first rotatable member about an axis perpendicular to the longitudinal axis of the sheath.

11. The method of claim 9 , wherein the hand of the operator actuates the first actuator and thereafter actuates the second actuator without the operator repositioning the hand on the handle.

12. The method of claim 9 , wherein the first state includes a default position of the first actuator.

13. The method of claim 9 , further including releasing the first rotatable member to return the first actuator to the first state.

14. The method of claim 9 , wherein actuating the second actuator comprises rotating a knob that is fixedly attached to the elongate member.

15. The method of claim 9 , further including expanding the end effector.

16. The method of claim 9 , wherein actuating the second actuator occurs after actuating the first actuator.

17. A medical device, comprising:
a handle having a housing located at a proximal end of the device;
a distal end effector;
an elongate member connecting the end effector to the handle;
a sheath enclosing at least a portion of the elongate member; the handle comprising:
a first actuator coupled to one of the sheath and the elongate member to move the sheath relative to the elongate member, wherein the first actuator is moveable along an axis perpendicular to a longitudinal axis of the sheath, the first actuator including a first rotatable gear, a second rotatable gear coupled to the first rotatable gear, and a linear translatable gear, wherein the second rotatable gear is enclosed with the housing of the handle, and
a second actuator coupled to the elongate member to rotate the elongate member and the end effector relative to the handle, and
wherein, in a first state, the second rotatable gear is engaged with a portion of the handle housing such that the first and second rotatable gears are prevented from rotating, and in a second state, the second rotatable gear is disengaged from the portion of the handle housing and the first rotatable gear engages the linear translatable gear.

18. The device of claim 17 , wherein the first rotatable gear is rotatable about an axis perpendicular to the longitudinal axis of the sheath.

19. The device of claim 17 , wherein the second gear is a knob rotatable about the longitudinal axis of the sheath.

Assignees

• Teague James A
• Cheng Eric
• Aziz Mohamed Fazni
• Boston Scient Scimed Inc

Inventors

• Teague James A
• Cheng Eric
• Aziz Mohamed Fazni

Classifications

• A61B2017/00424

  ergonomic, e.g. fitting in fist · CPC title

• A61B2017/2923

  Toothed members, e.g. rack and pinion · CPC title

• A61B2017/00336

  with a protective sleeve, e.g. retractable or slidable · CPC title

• A61B17/221 Primary

  Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)} · CPC title

• A61B17/00234

  for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence) · CPC title