Surgical adapter assemblies for use between surgical handle assembly and surgical end effectors

• US 10,251,644 B2
• Filed: 08/07/2015
• Issued: 04/09/2019
• Est. Priority Date: 07/09/2012
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Williams, Ryan, Marczyk, Stanislaw
• Primary Examiner(s): Chukwurah, Nathaniel C
• Application Number:
  US14/820,650
• Publication Number:
  US 20150342601A1
• Time in Patent Office: 1,341 Days
• Field of Search: 2271751, 2271761, 2271781, 2271791, 2271801
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• 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 90/00 Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges protective face masks A41D13/11; surgeon's or patient's gowns or dresses A41D13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M1/00
• CPC Class Codes: F04C 2270/041 Controlled or regulated

Abstract

Adapter assemblies selectively interconnect a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector. The adapter assembly includes an adapter knob housing configured and adapted for connection with the surgical device and to be in operative communication with each of the at least one rotatable drive shaft of the surgical device. The adapter knob housing defines a lumen extending longitudinally therethrough and a ring gear formed in an inner surface of the lumen of the adapter knob housing. The ring gear defines an internal array of gear teeth which are engaged with a spur gear of a rotatable drive shaft. The adapter knob housing may be a unitary member and may be formed of plastic.

Claims

1. An adapter assembly for selectively interconnecting a surgical end effector and a surgical device, the adapter assembly comprising:

an adapter knob housing configured to couple to the surgical device, the adapter knob housing having an inner surface defining a lumen extending longitudinally through the adapter knob housing, the adapter knob housing including a ring gear formed in the inner surface of the adapter knob housing and a pair of bosses extending radially into the lumen;

an outer tube having a proximal end supported by the adapter knob housing and engaged by the pair of bosses and a distal end configured to couple to the end effector; and

a proximal drive shaft defining a longitudinal axis and rotatably supported in the adapter knob housing, the proximal drive shaft having a gear engaged with the ring gear such that rotation of the proximal drive shaft about the longitudinal axis rotates the adapter knob housing and the end effector.

2. The adapter assembly according to claim 1, wherein the ring gear has an internal array of gear teeth.

3. The adapter assembly according to claim 2, wherein the internal array of gear teeth project into the lumen.

4. The adapter assembly according to claim 1, wherein the adapter knob housing is monolithic.

5. The adapter assembly according to claim 4, wherein the adapter knob housing is formed from a thermoplastic polymer.

6. The adapter assembly according to claim 1, wherein the adapter knob housing includes:

a distal housing portion; and

a proximal housing portion secured to the distal housing portion.

7. An electromechanical surgical system, comprising:

a hand-held surgical device having a rotatable drive shaft;

an end effector; and

an adapter assembly for selectively interconnecting the end effector and the surgical device, the adapter assembly including;

an adapter knob housing configured to couple to the surgical device, the adapter knob housing having an inner surface defining a lumen extending longitudinally through the adapter knob housing, the adapter knob housing including a ring gear formed in the inner surface of the adapter knob housing and a pair of bosses extending radially into the lumen;

an outer tube having a proximal end supported by the adapter knob housing and engaged by the pair of bosses a distal end configured to couple to the end effector; and

a proximal drive shaft defining a longitudinal axis and rotatably supported in the adapter knob housing, the proximal drive shaft being connectable to the rotatable drive shaft of the surgical device, wherein the proximal drive shaft includes a gear engaged with the ring gear such that rotation of the rotatable drive shaft of the surgical device rotates the proximal drive shaft about the longitudinal axis, and wherein rotation of the proximal drive shaft rotates the adapter knob housing to rotate the end effector.

8. The electromechanical surgical system according to claim 7, wherein the ring gear has an internal array of gear teeth.

9. The electromechanical surgical system according to claim 8, wherein the internal array of gear teeth project into the lumen.

10. The electromechanical surgical system according to claim 7, wherein the adapter knob housing is monolithic.

11. The electromechanical surgical system according to claim 10, wherein the adapter knob housing is formed from a thermoplastic polymer.

12. The electromechanical surgical system according to claim 7, wherein the adapter knob housing includes:

a distal housing portion; and

a proximal housing portion secured to the distal housing portion.