HAND HELD SURGICAL HANDLE ASSEMBLY, SURGICAL ADAPTERS FOR USE BETWEEN SURGICAL HANDLE ASSEMBLY AND SURGICAL LOADING UNITS, AND METHODS OF USE

• US 20130319706A1
• Filed: 05/06/2013
• Published: 12/05/2013
• 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
• Granted Patent: US 9,868,198 B2
• Time in Patent Office: Days
• US Class Current: 173/29
• 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 device, comprising:

a device housing defining a connecting portion for selectively connecting with an adapter assembly;

at least one drive motor supported in the device housing and being configured to rotate at least one drive shaft;

a battery disposed in electrical communication with the at least one drive motor; and

a circuit board disposed within the housing for controlling power delivered from the battery to the at least one drive motor;

a loading unit configured to perform at least one function, the loading unit including at least one axially translatable drive member; and

an adapter assembly for selectively interconnecting the loading unit and the device housing, the adapter assembly including;

a knob housing configured and adapted for selective connection to the device housing and to be in operative communication with each of the at least one rotatable drive shaft;

at least one drive converter assembly for interconnecting a respective one of the at least one rotatable drive shaft and one of the at least one axially translatable drive member of the loading unit, wherein the at least one drive converter assembly converts and transmits a rotation of the rotatable drive shaft to an axial translation of the at least one axially translatable drive member of the loading unit, wherein the at least one drive converter assembly includes a first drive converter assembly including;

a drive element rotatably supported in the knob housing, wherein a proximal end of the drive element is engagable with the rotatable drive shaft, and wherein the drive element defines a longitudinal axis;

a drive nut threadably engaged with a distal portion of the drive element; and

a distal drive member, a proximal portion of the distal drive member being disposed in mechanical cooperation with the drive nut, a distal portion of the distal drive member configured for selective engagement with the at least one axially translatable drive member of the loading unit;

wherein rotation of the rotatable drive shaft results in rotation of the drive element, and wherein rotation of the drive element results in axial translation of the drive nut, the distal drive member, and the at least one axially translatable drive member of the loading unit; and

wherein the drive nut is disposed about the longitudinal axis, and the distal drive member is disposed along the longitudinal axis.

2. The surgical device of claim 1, wherein the threaded portion of the drive element is disposed along the longitudinal axis.

3. The surgical device of claim 1, wherein a radial center of each of the drive element, the drive nut and the distal drive member are disposed along the longitudinal axis.

4. The surgical device of claim 3, wherein a radial center of the threaded portion of the drive element is disposed along the longitudinal axis.

5. The surgical device of claim 1, wherein the entire lengths of each of the drive element, and the distal drive member are disposed along the longitudinal axis, and wherein the entire length of the drive nut is disposed about the longitudinal axis.

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

7. The surgical device of claim 6, wherein the drive shaft is radially off-center with respect to the connecting portion.

8. The surgical device of claim 1, wherein the drive is rotatable with respect to the drive nut.

9. The surgical device of claim 8, wherein the distal drive member is fixed from rotation with respect to the drive nut.

10. An adapter assembly for selectively interconnecting a surgical loading unit and a handle assembly having at least one rotatable drive shaft, the adapter assembly comprising:

a knob housing configured and adapted for selective connection to a handle assembly, the knob housing including a drive coupling housing; and

at least one drive converter assembly for interconnecting a respective one of the at least one rotatable drive shaft and a portion of a surgical loading unit, wherein the at least one drive converter assembly converts and transmits a rotation of the rotatable drive shaft to an axial translation of the at least one axially translatable drive member of the loading unit, wherein the at least one drive converter assembly includes a first drive converter assembly including;

a drive element rotatably supported in the knob housing, wherein a proximal end of the drive element is engagable with the rotatable drive shaft, and wherein the drive element defines a longitudinal axis;

a drive nut threadably engaged with a distal portion of the drive element; and

a distal drive member, a proximal portion of the distal drive member being disposed in mechanical cooperation with the drive nut, a distal portion of the distal drive member configured for selective engagement with the at least one axially translatable drive member of the loading unit;

wherein rotation of the rotatable drive shaft results in rotation of the drive element, and wherein rotation of the drive element results in axial translation of the drive nut, the distal drive member, and the at least one axially translatable drive member of the loading unit; and

wherein the drive nut is disposed about the longitudinal axis, and the distal drive member is disposed along the longitudinal axis.

11. The adapter assembly of claim 10, wherein the threaded portion of the drive element is disposed along the longitudinal axis.

12. The adapter assembly of claim 10, wherein a radial center of each of the drive element, the drive nut and the distal drive member are disposed along the longitudinal axis.

13. The adapter assembly of claim 12, wherein a radial center of the threaded portion of the drive element is disposed along the longitudinal axis.

14. The adapter assembly of claim 10, wherein the entire lengths of each of the drive element, and the distal drive member are disposed along the longitudinal axis, and wherein the entire length of the drive nut is disposed about the longitudinal axis.

15. The adapter assembly of claim 10, wherein the drive element is radially off-center with respect to the knob housing.

16. The adapter assembly of claim 10, wherein the drive is rotatable with respect to the drive nut.

17. The adapter assembly of claim 16, wherein the distal drive member is fixed from rotation with respect to the drive nut.