Multi-function surgical instruments

• US 9,867,656 B2
• Filed: 11/17/2014
• Issued: 01/16/2018
• Est. Priority Date: 11/17/2014
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Joseph, Daniel A., Butcher, Brian R., Jadhav, Amarsinh D., Soni, Purvish
• Primary Examiner(s): Hupczey, Jr., Ronald
• Assistant Examiner(s): Ouyang, Bo
• Application Number:
  US14/542,766
• Publication Number:
  US 20160135868A1
• Time in Patent Office: 1,156 Days
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/2912 transmission of forces to actuating rod or piston
• CPC Class Codes: A61B 2018/00178 Electrical connectors
• CPC Class Codes: A61B 2018/00196 reciprocating lengthwise
• CPC Class Codes: A61B 2018/00607 Coagulation and cutting with the same instrument
• CPC Class Codes: A61B 2018/1253 monopolar
• CPC Class Codes: A61B 2018/126 bipolar
• CPC Class Codes: A61B 2018/1422 Hook
• CPC Class Codes: A61B 2018/1455 having a moving blade for cutting tissue grasped by the jaws
• CPC Class Codes: A61B 2018/1467 using more than two electrodes on a single probe

Abstract

A surgical instrument includes a housing, an energizable member, a powered deployment assembly, and a cable assembly. The energizable member is configured to supply electrosurgical energy to tissue, and is movable between a storage position and a deployed position. The powered deployment assembly is configured to selectively move the energizable member between the storage position and the deployed position. The cable assembly having a cable coupled to the housing at a first end and having a plug coupled to the cable at a second, opposite end. The cable housing one or more first wires for selectively providing electrosurgical energy to the energizable member and one or more second wires for selectively providing power to the powered deployment assembly. The plug is configured to house a battery therein for powering the powered deployment assembly via the one or more second wires.

Claims

1. A surgical instrument, comprising:

a housing;

an energizable member configured to supply electrosurgical energy to tissue, the energizable member movable relative to the housing between a storage position and a deployed position;

a powered deployment assembly configured to selectively move the energizable member between the storage position and the deployed position, wherein the powered deployment assembly includes a fixed guide and an actuator movably supported within the fixed guide, the actuator coupled to the energizable member and configured to move relative to the fixed guide to selectively move the energizable member between the storage position and the deployed position, the actuator including a ferromagnetic material and the powered deployment assembly including a magnet configured to actuate the actuator, the fixed guide extending between a proximal portion and a distal portion of the surgical instrument and the magnet being fixed to the distal portion of the fixed guide, and wherein the actuator is slidably disposed on the proximal portion of the fixed guide; and

a cable assembly having a cable coupled to the housing at a first end and having a plug coupled to the cable at a second, opposite end, the cable housing one or more first wires for selectively providing electrosurgical energy to the energizable member, the cable housing one or more second wires for providing power to the powered deployed assembly, the plug configured to house a battery therein for powering the powered deployment assembly via the one or more second wires.

2. The surgical instrument according to claim 1, wherein the magnet is an electromagnet and wherein the energy source in the plug is configured to selectively provide energy to produce a magnetic field around at least a portion of the electromagnet.

3. The surgical instrument according to claim 1, wherein the powered deployment assembly further includes a biasing member disposed between the magnet and the actuator, the biasing member configured to bias the magnet away from the actuator.

4. The surgical instrument according to claim 1, further including a switch assembly operably coupled to the powered deployment assembly and adapted to connect to a source of electrosurgical energy such that when the switch is activated electrosurgical energy is supplied to the energizable member when the energizable member is in the deployed position.

5. The surgical instrument according to claim 1, wherein the powered deployment assembly includes a motor configured to drive movement of the energizable member between the storage position and the deployed position.

6. A surgical instrument, comprising:

a housing;

an energizable member configured to supply electrosurgical energy to tissue, the energizable member movable relative to the housing between a storage position and a deployed position;

a powered deployment assembly configured to selectively move the energizable member between the storage position and the deployed position, the powered deployment assembly including;

a fixed guide having a proximal portion and a distal portion;

an electromagnet disposed in the housing and configured to be selectively energizable;

an actuator disposed in the housing and movable relative to the fixed guide along an axis between the proximal portion and the distal portion of the fixed guide, the actuator operably coupled to the energizable member; and

a biasing member disposed between the electromagnet and the actuator to bias the electromagnet and actuator apart from one another, wherein energizing the electromagnet moves the actuator distally towards the electromagnet, thereby translating the energizable member to the deployed position; and

a switch disposed on the housing and operably coupled to the powered deployment assembly for selectively energizing the electromagnet, wherein the electromagnet is fixed to the distal portion of the fixed guide and the actuator is slidably disposed on the proximal portion of the fixed guide.

7. The surgical instrument according to claim 6, wherein the fixed guide includes at least one stopper, the at least one stopper configured to provide for controlled linear motion of the actuator.

8. The surgical instrument according to claim 6, wherein a cable assembly is coupled to the housing at a first end, and has a plug at a second, opposite end, the plug adapted to connect to an energy source for powering the powered deployment assembly.

9. The surgical instrument according to claim 8, wherein the plug houses a battery for powering the powered deployment assembly.

10. The surgical instrument according to claim 6, wherein the switch assembly includes at least one sensor, the at least one sensor adapted to communicate with a source of electrosurgical energy to selectively supply electrosurgical energy to the energizable member when the energizable member is in the deployed position.