Hand held surgical handle assembly, surgical adapters for use between surgical handle assembly and surgical loading units, and methods of use

• US 9,868,198 B2
• Filed: 05/06/2013
• Issued: 01/16/2018
• Est. Priority Date: 06/01/2012
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Nicholas, David, Beardsley, John, Pribanic, Russell, Zemlok, Michael
• Primary Examiner(s): Desai, Hemant M
• Assistant Examiner(s): Palmer, Lucas
• Application Number:
  US13/887,402
• Publication Number:
  US 20130319706A1
• Time in Patent Office: 1,716 Days
• Field of Search: 173 29, 3 29
• CPC Class Codes: A61B 17/00 Surgical instruments, devices or methods, e.g. tourniquets A61B18/00 takes precedence; contraceptive devices, pessaries, or applicators therefor A61F6/00; eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 2017/00345 Micromachines, nanomachines, microsystems
• CPC Class Codes: A61B 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/00464 for use with different instruments with hole for different instruments A61B2017/22072
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00486 Adaptors for coupling parts with incompatible geometries
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/2902 characterized by features of the actuating rod
• CPC Class Codes: A61B 2090/0803 Counting the number of times an instrument is used
• CPC Class Codes: A61B 90/98 using electromagnetic means, e.g. transponders
• CPC Class Codes: B25F 3/00 Associations of tools for different working operations with one portable power-drive means; Adapters therefor
• CPC Class Codes: Y10T 279/3412 Drive conversion

Abstract

A surgical device comprising an adapter assembly is disclosed. The adapter assembly selectively interconnects a loading unit and a device housing, and includes at least one drive converter assembly for interconnecting a rotatable drive shaft and an axially translatable drive member of the loading unit. The at least one drive converter assembly converts and transmits a rotation of the rotatable drive shaft to an axial translation of the axially translatable drive member of the loading unit. The at least one drive converter assembly includes a drive element, a drive nut, and a distal drive member. The drive element defines a longitudinal axis. The drive nut is disposed about the longitudinal axis, and the distal drive member is disposed along the longitudinal axis.

Claims

1. A surgical system comprising:

a handheld surgical device including;

a handle housing;

a drive motor disposed in the handle housing and having an axis of rotation defining a longitudinal axis;

a first, a second, and a third rotatable drive connector each operably coupled to the drive motor, the first, the second, and the third rotatable drive connectors defining a respective axis of rotation that is parallel to the longitudinal axis, the first rotatable drive connector diametrically opposed from the second rotatable drive connector and defining a first plane bisecting the handle housing, the third rotatable drive connector being offset from the first plane; and

a removable battery;

an adapter configured to removably couple to the handheld surgical device, the adapter including;

a drive coupling assembly including a first, a second, and a third rotatable connector sleeve each configured to operably couple to the first, the second, and the third rotatable drive connectors, respectively, wherein rotation of the first, the second, and the third rotatable drive connectors causes a corresponding rotation of the first, the second, and the third rotatable connector sleeves;

a knob housing extending from a distal portion of the drive coupling assembly, a radial center of the knob housing defining a central axis, wherein the third rotatable connector sleeve is disposed on the central axis and defines a second plane parallel to, and offset from, the first plane of the handheld surgical device, when the adapter is connected to the handheld surgical device, and the first and the second rotatable connector sleeves are disposed on the first plane of the handheld surgical device and offset from the second plane, when the adapter is connected to the handheld surgical device;

an outer tube extending from a distal portion of the knob housing; and

a loading unit coupling assembly disposed on a distal portion of the outer tube; and

a loading unit configured to removably couple to the loading unit coupling assembly and to be actuated by at least one of the rotatable drive connectors of the handheld surgical device.

2. The surgical device of claim 1, wherein the first, the second, and the third rotatable connector sleeves are each keyed to the respective one of the first, the second, and the third rotatable drive connectors such that rotation of each of the rotatable drive connectors causes an independent rotation of the corresponding one of the rotatable connector sleeves.

3. The surgical device of claim 2, wherein the handheld surgical device further includes a drive mechanism operatively coupled to the first, the second, or the third rotatable drive connectors, the drive mechanism configured to selectively rotate one of the first, the second, or the third rotatable drive connectors.

4. The surgical device of claim 3, wherein the selective rotation of each of the rotatable drive connectors causes a corresponding actuation of a function of the loading unit.

5. The surgical device of claim 4, wherein the loading unit includes a tool assembly, and wherein selective rotation of one of the drive connectors corresponds to an opening and closing of the tool assembly, and a driving of at least one of a stapling assembly and a cutting assembly of the tool assembly.

6. The surgical device of claim 4, wherein the loading unit defines a longitudinal axis, and wherein selective rotation of one of the drive connectors corresponds to an articulation of the loading unit transverse to the longitudinal axis.

7. The surgical device of claim 4, wherein the loading unit defines a longitudinal axis, and wherein selective rotation of one of the drive connectors corresponds to rotation of the loading unit about the longitudinal axis.

8. The surgical device of claim 1, wherein the drive coupling assembly is radially off-center with respect to the knob housing.

9. The surgical device of claim 1, wherein the adapter further includes a drive converter assembly, the drive converter assembly including a first drive shaft, a lead screw, and a drive nut, the first drive shaft operatively coupled to one of the rotatable connector sleeves.

10. The surgical device of claim 9, wherein the drive converter assembly further includes:

a second drive shaft operatively coupled to one of the rotatable connector sleeves; and

a third drive shaft operatively coupled to one of the rotatable connector sleeves.

11. The surgical device of claim 9, wherein the lead screw is a threaded distal portion of the first drive shaft, and the drive nut is an elongated member having an internal threaded portion, the drive nut being configured to mechanically engage the threaded portion of the lead screw.

12. The surgical device of claim 11, wherein the drive converter assembly further includes a first drive member operatively coupled to a distal portion of the drive nut via a linking assembly.

13. The surgical device of claim 12, wherein rotation of the first drive shaft causes a non-rotational, longitudinal translation of the first drive member.

14. The surgical device of claim 13, wherein a radial center of each of the first drive shaft, the lead screw, the drive nut, and the first drive member are disposed along a common longitudinal axis defined by the adapter.

15. The surgical device of claim 14, wherein the loading unit includes a second drive member configured to selectively couple with a distal portion of the first drive member, wherein the longitudinal translation of the first drive member causes axial translation of the second drive member of the loading unit to effectuate opening and closing of the tool assembly and driving of at least one of the stapling assembly and the cutting assembly of the tool assembly.