Flexible shaft extender and method of using same

• US 7,947,034 B2
• Filed: 08/01/2005
• Issued: 05/24/2011
• Est. Priority Date: 07/30/2004
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Whitman, Michael P.
• Primary Examiner(s): Gibson; Roy D
• Assistant Examiner(s): SMITH, KAITLYN ELIZABETH
• Application Number:
  US11/194,950
• Publication Number:
  US 20060089628A1
• Time in Patent Office: 2,122 Days
• Field of Search: 606/1, 606/100
• US Class Current: 606/1
• 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 17/1626 Control means; Display units
• CPC Class Codes: A61B 17/1631 Special drive shafts, e.g. flexible shafts A61B17/1642, A61B17/164 take precedence
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 2017/003 Steerable
• CPC Class Codes: A61B 2017/00482 with a code
• CPC Class Codes: A61B 2017/320032 Details of the rotating or oscillating shaft, e.g. using a flexible shaft
• CPC Class Codes: A61B 2090/0803 Counting the number of times an instrument is used
• CPC Class Codes: F16C 1/10 Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden-mechanisms" guiding-sheathings F16C1/26
• CPC Class Codes: Y10T 74/2042 and hand operator

Abstract

An extender for use in an electro-mechanical surgical system that includes a surgical attachment that may be detachably coupled to an electro-mechanical driver device via a flexible shaft. The extender is a substantially rigid extender that includes a proximal end that may be detachably coupled to a distal end of the flexible shaft. The extender also includes a distal end that may be detachably coupled to the surgical attachment. The extender also includes at least one rotatable drive shaft configured to engage and be secured with a respective rotatable drive shaft of the flexible shaft such that rotation of the respective rotatable drive shaft of the flexible shaft by the electro-mechanical driver device causes the at least one rotatable drive shaft of the extender to rotate, thereby rotating a complementary connector of the surgical attachment so as to operate the surgical attachment. The extender may include a memory unit and a data cable that transfers data from the memory unit to an electro-mechanical driver device. Additionally or alternatively, the extender may include a data cable that transfers data from a memory unit in the surgical attachment to the electro-mechanical driver device. Advantageously, the extender is autoclavable.

Claims

1. In an electro-mechanical surgical system including a surgical attachment detachably coupleable to an electro-mechanical driver device via a relatively flexible shaft, a substantially rigid extender comprising:

a proximal end having a proximal coupling configured to be detachably coupled to a distal coupling of a distal end of the flexible shaft;

a distal end having a distal coupling configured to be detachably coupled to a proximal coupling of the surgical attachment; and

at least two rotatable drive shafts each configured to engage and be secured with a respective rotatable drive shaft of the flexible shaft such that rotation of the respective rotatable drive shafts of the flexible shaft by the electro-mechanical driver device causes the at least two rotatable drive shafts of the extender to rotate, thereby rotating at least two complementary connectors of the surgical attachment so as to operate the surgical attachment;

wherein the proximal coupling of the extender is complementary to the distal coupling of the flexible shaft and complementary to the distal coupling of the extender;

wherein the distal coupling of the extender is complementary to the proximal coupling of the surgical attachment and complementary to the distal coupling of the extender; and

wherein the rigid extender has a reduced degree of flexibility as compared to the flexible shaft.

2. The extender of claim 1, wherein the extender is autoclavable.

3. The extender of claim 1, wherein the extender further comprises a memory unit.

4. The extender of claim 3, wherein the memory unit is configured to store one or more of serial number data, an attachment type identifier data and a usage data.

5. The extender of claim 4, wherein one or more of the serial number data and the ID data is configured as read-only data.

6. The extender of claim 5, wherein the serial number data is data uniquely identifying the extender.

7. The extender of claim 5, wherein the ID data is data identifying the type of the extender.

8. The extender of claim 5, wherein the usage data represents a number of times the extender has been used.

9. The extender of claim 3, wherein the extender further comprises a data cable configured to transfer data between the memory unit and the electromechanical driver device.

10. The extender of claim 1, wherein the extender further comprises a data cable configured to transfer data between a memory unit located in the surgical attachment and the electro-mechanical driver device.

11. The device of claim 1, wherein the surgical attachment is a surgical stapler-cutter.

12. A method for performing a surgical procedure, the method comprising the steps of:

detachably coupling a proximal coupling of a proximal end of an extender to a distal coupling of a relatively flexible shaft such that at least two rotatable drive shafts engage and are secured with respective rotatable drive shafts of the flexible shaft, the flexible shaft being coupled to an electro-mechanical driver device, the extender being substantially rigid and having a reduced degree of flexibility as compared to the flexible shaft;

detachably coupling a distal coupling of a distal end of the extender to a proximal coupling of a surgical attachment such that each of the at least two rotatable drive shafts of the extender engages and is secured with a respective complementary connector of the surgical attachment;

rotating the respective rotatable drive shafts of the flexible shaft by the electro-mechanical driver device so as to cause the at least two rotatable drive shafts of the extender to rotate; and

rotating, by the at least two rotatable drive shafts of the extender, the complementary connectors of the surgical attachment so as to operate the surgical attachment;

wherein the proximal coupling of the extender is complementary to the distal coupling of the flexible shaft and complementary to the distal coupling of the extender; and

wherein the distal coupling of the extender is complementary to the proximal coupling of the surgical attachment and complementary to the distal coupling of the extender.

13. The method of claim 12, further comprising the step of storing in a memory unit of the extender one or more of serial number data, an attachment type identifier data and a usage data.

14. The method of claim 13, further comprising the step of configuring one or more of the serial number data and the ID data as read-only data.

15. The method of claim 14, wherein the serial number data is data uniquely identifying the extender.

16. The method of claim 14, wherein the ID data is data identifying the type of the extender.

17. The method of claim 14, wherein the usage data represents a number of times the extender has been used.

18. The method of claim 13, further comprising the step of transferring, via a data cable located within the extender, data between the memory unit and the electro-mechanical driver device.

19. The method of claim 12, further comprising the step of storing in a memory unit of the surgical attachment one or more of serial number data, an attachment type identifier data and a usage data.

20. The method of claim 19, further comprising the step of transferring, via a data cable located within the extender, data between the memory unit and the electro-mechanical driver device.

21. An electro-mechanical surgical system, comprising:

an electro-mechanical driver device;

a flexible shaft;

a surgical attachment detachably coupleable to the electro-mechanical driver device via the flexible shaft; and

a substantially rigid extender comprising;

a proximal end having a proximal coupling detachably coupled to a distal coupling of a distal end of the flexible shaft;

a distal end having a distal coupling detachably coupled to a proximal coupling of the surgical attachment;

at least two rotatable drive shafts each configured to engaging and secured with a respective rotatable drive shaft of the flexible shaft such that rotation of the respective rotatable drive shafts of the flexible shaft by the electro-mechanical driver device causes the at least two rotatable drive shafts of the extender to rotate, thereby rotating at least two complementary connectors of the surgical attachment so as to operate the surgical attachment; and

a tube rotatably receiving and supporting each drive shaft, wherein each tube is configured to minimize friction with each drive shaft during a rotation of each drive shaft relative to the respective tube;

wherein the proximal coupling of the extender is complementary to the distal coupling of the flexible shaft and complementary to the distal coupling of the extender; and

wherein the distal coupling of the extender is complementary to the proximal coupling of the surgical attachment and complementary to the distal coupling of the extender.