Remote controlled device for tool rotating

• US 7,300,431 B2
• Filed: 04/09/2003
• Issued: 11/27/2007
• Est. Priority Date: 06/24/2002
• Status: Expired due to Fees

• Current Assignee: Arkady Veniaminovich Dubrovsky
• Original Assignee: Arkady Veniaminovich Dubrovsky
• Inventors: Dubrovsky, Arkady Veniaminovich
• Primary Examiner(s): PEFFLEY, MICHAEL F
• Application Number:
  US10/518,203
• Publication Number:
  US 20050177138A1
• Time in Patent Office: 1,693 Days
• Field of Search: 606/1, 606170-180, 285/184, 464/19, 464/50, 464/106, 464150-160, 464/183, 716/5, 81 5726- 5729
• US Class Current: 606/1
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 2017/2902 characterized by features of the actuating rod
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/320032 Details of the rotating or oscillating shaft, e.g. using a flexible shaft
• CPC Class Codes: B23Q 5/045 Angle drives
• CPC Class Codes: F16H 1/006 the driving and driven axes being designed to assume variable positions relative to one another during operation
• CPC Class Codes: F16H 1/14 comprising conical gears only
• CPC Class Codes: G05G 7/02 characterised by special provisions for conveying or converting motion, or for acting at a distance

Abstract

A remote-controlled device for rotating tools, preferably medical tools, comprising a hollow body (1) which is embodied in the form of pivotally connected proximal and distal parts (2, 6) provided with a pair of adjacent end surfaces (5, 5′) which are angularly disposed with respect to the longitudinal axis of the body (1), and an axis (7) which is perpendicularly oriented with respect to the end surfaces (5, 5′) and provided with a central channel and a remote control mechanism. A shaft (10) arranged in the central channel of the device comprises driven, driving and transmitting sections (11, 12, 13) respectively, and operates as a link for transferring working rotational motion at a variable angle. The tilt angle between the distal part (6) and the longitudinal axis of the proximal part (2) can be equal to 180°.

Claims

1. A device for remote-controlling tool rotating comprising:

a hollow body (1) including at least two parts pivotally connected with adjacent chamfered end surfaces (5, 5′

)—

a proximal part (2) which is connected to a control handle and formed of two coaxial oriented hollow cylindrical elements (3, 4) designed to rotate with respect to each other—

and a distal part (6), said hollow body (1) also including a link for transferring a working motion from the control handle to a tool at the distal end of the body, wherein said link for transferring a working motion is designed as a shaft (10) comprised of at least two sections—

a driving section (11) and a driven section (13) which are connected in order to vary the angular position with respect to each other.

2. The device of claim 1, wherein the driving and the driven sections (11,13) of the shaft are connected by teeth (18, 19) coming into engagement and provided at facing end surfaces of the shaft sections (11, 13).

3. The device of claim 1, wherein the driving and the driven sections (11, 13) of the shaft are connected by means of one of joints chosen from a group consisting of a cardan joint (27) and a joint having equal angular velocities.

4. The device of claim 1, wherein said shaft additionally comprises a third transmitting section (12) which is located between said driving and driven sections (11, 13) and connected to them in order to transfer a rotational motion from the driving section (11) to the driven one (13).

5. The device of claim 4, wherein the engagement of the driving and the driven sections (11, 13) with the transmitting section (12) is provided by means of bevel gears (14, 15 and 16, 17).

6. The device of claim 5, wherein each of the driving, the driven and the transmitting shaft section (11, 12, 13) is comprised of at least two coaxial oriented elements mounted to rotate independently of one another.

7. The device of claim 4, wherein the engagement of the driving and the driven sections (11, 13) with the transmitting section (12) is provided by means of cardan joints (27).

8. The device of claim 1, wherein an intermediate part (20) having end surfaces (21, 21′

) chamfered in opposite directions and mated to come into engagement with the respective chamfered end surfaces (5, 5′

) of the proximal and distal parts (2, 6) in order to rotate with respect to the proximal and distal parts of the hollow body (1) is additionally provided in between the proximal and distal parts (2, 6) of the hollow body (1), and contains the transmitting section which is formed of two parts (12, 12′

) connected kinematically and designated to transfer a rotational motion.

9. The device of claim 8, wherein said kinematic connection between the parts (12, 12′

) of the transmitting section is provided by means of one of the systems chosen from a group consisting of a hinge joint and a bevel gear.

10. The device of claim 1, wherein an intermediate part (28) having end surfaces chamfered and mated to come into engagement with the respective chamfered end surfaces of the proximal and distal parts (2, 6) in order to rotate with respect to the proximal and distal parts is provided between the proximal and distal parts (2, 6) of the hollow body (1) and contains a hollow cylindrical element (30) arranged inside the intermediate part in coaxial alignment to the hollow body (1), said cylindrical element (4) in the proximal part (2), the cylindrical element (30) in the intermediate part (28) and the distal part (6) being engaged in between by means of teeth provided on facing end surfaces thereof (29,31 and 29′

, 31′

), said transmitting shaft section (12) being connected with the driving and driven sections (11, 13) by means chosen from the group consisting of cardan joints (27) and gears.