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EP-3416569-B1 - SURGICAL TOOL

EP3416569B1EP 3416569 B1EP3416569 B1EP 3416569B1EP-3416569-B1

Inventors

  • MANSFIELD, RICHARD P.
  • WALISH, Judy L.
  • FEMIA, Stephen P.

Dates

Publication Date
20260506
Application Date
20160310

Claims (11)

  1. A tool (36) for use by a surgeon, the tool configured for coupling to a working channel port (60) and configured to be connected to an assembly (33) comprising a sheath (56) and a wire (54) including a basket device (50) for capturing an object to be removed from a body of a human or an animal, the tool comprising: a controller (70) adapted to be coupled to the sheath and the wire for selectively controlling position of the wire with respect to the sheath and for operating the basket device between a first, closed position and a second, open position, the controller including a base portion comprising: a wire actuation unit (72) including a movable plunger (82) for coupling with the wire and for moving the wire with respect to the sheath; and a sheath control unit (74) including a connector (94) configured to removably mount onto the working channel port, the sheath control unit removably coupled to the wire actuation unit and fixedly attached to the sheath for independently controlling position of the sheath; wherein the controller is configured to longitudinally move the wire and operate the basket device to selectively open and close the basket device; wherein the sheath and wire includes a service portion located between the wire actuation unit and the sheath control unit such that the wire actuation unit is configured to move the basket device relative to the sheath when the wire actuation unit is connected to the sheath control unit, and the wire actuation unit is configured to move the basket device relative to the sheath when the wire actuation unit is removed from the sheath control unit.
  2. The tool of Claim 1 further comprising a first biasing mechanism for biasing the basket device toward the first, closed position.
  3. The tool of any one of Claims 1-2 wherein the sheath control unit is configured to be separately controllable from control of the wire actuation unit.
  4. The tool of any one of Claims 1-2 wherein the wire actuation unit, when uncoupled from the sheath control unit, is configured to be controlled by a person other than the surgeon controlling the sheath control unit.
  5. The tool of any one of Claims 1-2 wherein the wire actuation unit comprises: a housing (80) defining an axis, the housing including a passage (84) having a first internal portion and a second external portion; and a plunger movable along the axis of the housing in the passage, the plunger including an expanded distal region (88), the plunger extending along the axis and outward from the housing.
  6. The tool of Claim 5 wherein of the second external portion of the housing is formed for grasping by the surgeon, wherein a handle of the plunger is adapted for the surgeon to push and release such that the controller can be operated with a single hand.
  7. The tool of Claim 6 wherein the sheath control unit is removably coupled to the second external portion of the passage of the housing of the wire actuation unit, the tool further comprising: a first biasing mechanism for biasing the plunger along the axis of the housing in a direction to move the basket device toward the first, closed position; wherein the sheath control unit is provided with a seal (98).
  8. The tool of any one of Claims 1-2 wherein axial position of the basket device is controlled by adjusting axial position of the plunger of the wire actuation unit.
  9. The tool of any one of Claims 1-2 wherein rotational position of the basket device is controlled by adjusting rotational position of the plunger of the wire actuation unit.
  10. The tool of any one of Claims 1-2 wherein axial position of the sheath, when used with an endoscope and located in the body, is controlled by the sheath control unit and the wire actuation unit is configured to be controlled by a person other than the surgeon controlling the sheath control unit.
  11. The tool of any one of Claims 1-2 wherein axial position of the basket, when used with an endoscope and located in the body, is controlled by the controller and is configured to be controlled by a person other than the surgeon controlling the sheath control unit.

Description

BACKGROUND Technical Field The exemplary and non-limiting embodiments relate generally to an endoscope and, more particularly, to an apparatus used with an endoscope. Brief Description of Prior Developments U.S. Patent No. 6,764,499 discloses a medical device with a basket. U.S. Patent No. 8,211,115 discloses a variable size retrieval basket. US 2002/091394A1 and US 2014/257253 A1 disclose two further relevant surgical tools with retrieval baskets. SUMMARY The following summary is merely intended to be exemplary. The summary is not intended to limit the scope of the claims. The scope of the invention is defined by the appended claims. In accordance with one aspect, an example embodiment is provided in a tool. for use by a surgeon, the tool for coupling to a luer port and for operating a sheath and wire including a basket device for capturing an object to be removed from a body of an animal, the tool comprising: a controller adapted to be coupled to the sheath and the wire for selectively controlling the position of the wire with respect to the sheath and for operating the basket device between a first, closed position and a second, open position, the controller including a base portion comprising: a wire actuation unit including a movable plunger for coupling with the wire and for moving the wire with respect to the sheath; and a sheath control unit removably coupled to the wire actuation unit for independently controlling the position of the sheath, wherein the controller is configured to longitudinally move the wire and operate the basket device to selectively open and close the basket. In accordance with another aspect, an example embodiment is provided in a tool for use by a surgeon, the tool for coupling to a luer port and for operating a sheath and wire including a basket device for capturing an object to be removed from a body of an animal, the tool comprising: a controller adapted to be coupled to the sheath and the wire for selectively controlling the position of the wire with respect to the sheath and for operating the basket device between a first, closed position and a second, open position, the controller comprising: a wire actuation unit comprising: a housing defining an axis, the housing including a passage having a first internal portion and a second external portion; and a plunger movable along the axis of the housing in the first internal passage, the plunger including a handle extending along the axis and outward from the housing, plunger for coupling with the wire and for moving the wire with respect to the sheath; and the second external portion of the housing of the wire actuation unit removably coupled sheath control unit. In accordance with another aspect, an example method comprises operating a tool for use by a surgeon for capturing an object to be removed from a body of an animal, wherein the tool comprises a sheath and wire including an end including a basket device which may be opened when the end of the wire is moved external to an end of the sheath; a controller coupled to the sheath and wire for selectively controlling the position of the wire with respect to the sheath and for operating the basket device between a first, closed position and a second, open position, the controller including a base portion comprising a wire actuation unit including a movable plunger for coupling with the wire and for moving the wire with respect to the sheath; and a sheath control unit removably coupled to the wire actuation unit for independently controlling the position of the sheath; wherein the controller is configured to longitudinally move the wire and operate the basket device to selectively open and close the basket, the method of operation comprising the steps of: controlling the axial position of the basket device within the sheath by adjusting the axial position of the plunger within the controller; controlling the rotational position of the basket device by adjusting the rotational position of the plunger within the controller; and controlling the axial position of the sheath, when the tool is used with an endoscope and located in the body, by controlling the sheath control unit by a person other than the surgeon. BRIEF DESCRIPTION OF THE DRAWINGS The foregoing aspects and other features are explained in the following description, taken in connection with the accompanying drawings, wherein: Fig. 1 is a side view of an endoscope;Fig. 2 is a side view of a distal end of an endoscopic tool;Fig. 3 is a side view illustrating extension of the tool shown in Fig. 2 from the distal end of the endoscope shown in Fig. 1;Fig. 4 is a perspective view of a proximal end of the endoscopic tool shown in Figs. 2-3;Fig. 5 is a perspective view of the proximal end of the endoscopic tool shown in Fig. 4 showing the first section of the controller disconnected from the second section of the controller;Fig. 6 is a schematic view illustrating connections of the sheath and basket device to the controller