COAXIAL CATHETER SYSTEM

• US 20080119824A1
• Filed: 01/31/2008
• Published: 05/22/2008
• Est. Priority Date: 02/15/2001
• Status: Active Grant

• Current Assignee: Auris Health, Inc. (Johnson & Johnson)
• Original Assignee: Hansen Medical Incorporated (Johnson & Johnson)
• Inventors: Rogers, Gary, Weitzner, Barry, Solbjor, Albert
• Granted Patent: US 8,603,068 B2
• Time in Patent Office: Days
• US Class Current: 604/523
• CPC Class Codes: A61B 17/12045 double occlusion, e.g. during anastomosis
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 2017/12127 Double occlusion, e.g. for creating blood-free anastomosis site
• CPC Class Codes: A61B 2017/22075 with motorized advancing or retracting means
• CPC Class Codes: A61B 2017/3409 including needle or instrument drives
• CPC Class Codes: A61B 2034/301 for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes
• CPC Class Codes: A61B 2090/0811 for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
• CPC Class Codes: A61B 34/70 Manipulators specially adapted for use in surgery
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0008 having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
• CPC Class Codes: A61M 2025/0175 having telescopic features, interengaging nestable members movable in relations to one another
• CPC Class Codes: A61M 2025/1015 having two or more independently movable balloons where the distance between the balloons can be adjusted, e.g. two balloon catheters concentric to each other forming an adjustable multiple balloon catheter system
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2025/1059 having different inflatable sections mainly depending on the response to the inflation pressure, e.g. due to different material properties
• CPC Class Codes: A61M 2025/1072 having balloons with two or more compartments
• CPC Class Codes: A61M 25/0113 Mechanical advancing means, e.g. catheter dispensers
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters
• CPC Class Codes: A61M 25/10184 Means for controlling or monitoring inflation or deflation

Abstract

A drive mechanism for use with an elongated medical implement comprises a motor, a first pulley mechanically coupled to the motor, and a second pulley. The drive mechanism further comprises a connector mechanically coupled to the second pulley. The connector is configured for laterally receiving the medical implement. The drive mechanism further comprises a belt wrapped around the first and second pulleys to transmit force from the motor to the connector. A robotic medical system comprises a user interface configured for receiving at least one command, a drive mechanism including a motor and a connector configured for laterally receiving the medical implement, and an electrical controller configured for directing the motor to cause the drive mechanism to move the medical implement within at least one degree-of-freedom.

Claims

1. A drive mechanism for use with an elongated medical implement, comprising:

a motor;

a first pulley mechanically coupled to the motor;

a second pulley;

a connector mechanically coupled to the second pulley, the connector configured for laterally receiving the medical implement; and

a belt wrapped around the first and second pulleys to transmit force from the motor to the connector.

2. The drive mechanism of claim 1, wherein the connector comprises a slot for receiving the medical implement.

3. The drive mechanism of claim 2, wherein the slot has an enlarged portion into which the medical implement can be snapped.

4. The drive mechanism of claim 2, wherein the connector comprises a pair of legs configured for clamping the medical implement within the slot.

5. The drive mechanism of claim 2, further comprising a block in which the connector is disposed, and a screw threaded through the block into contact with the connector to narrow the slot.

6. The drive mechanism of claim 2, further comprising a sleeve that can be fitted over the connector to narrow the slot.

7. The drive mechanism of claim 6, wherein the sleeve is configured to be threaded over the connector.

8. The drive mechanism of claim 1, wherein the connector comprises an inner C-shaped ring for receiving the medical implement and an outer C-shaped ring configured for being rotated around the inner ring to capture the medical implement within the inner ring.

9. The drive mechanism of claim 1, wherein the force transmitted by the motor produces a rotational motion in the connector.

10. The drive mechanism of claim 1, wherein the medical implement is a catheter.

11. A robotic medical system, comprising:

the drive mechanism of claim 1;

a user interface configured for receiving at least one command; and

an electrical controller configured for directing the motor to cause the drive mechanism to axially rotate the medical implement in response to the at least one command.

12. A robotic medical system for use with an elongated medical implement, comprising:

a user interface configured for receiving at least one command;

a drive mechanism including a motor and a connector configured for laterally receiving the medical implement; and

an electrical controller configured for directing the motor to cause the drive mechanism to move the medical implement within at least one degree-of-freedom.

13. The robotic medical system of claim 12, wherein the connector comprises a slot for receiving the medical implement.

14. The robotic medical system of claim 13, wherein the slot has an enlarged portion into which the medical implement can be snapped.

15. The robotic medical system of claim 13, wherein the connector comprises a pair of legs configured for clamping the medical implement within the slot.

16. The robotic medical system of claim 13, further comprising a block in which the connector is disposed, and a screw threaded through the block into contact with the connector to narrow the slot.

17. The robotic medical system of claim 13, further comprising a sleeve that can be fitted over the connector to narrow the slot.

18. The robotic medical system of claim 17, wherein the sleeve is configured to be threaded cover the connector.

19. The robotic medical system of claim 12, wherein the connector comprises an inner C-shaped ring for receiving the medical implement and an outer C-shaped ring configured for being rotated around the inner ring to capture the medical implement within the inner ring.

20. The robotic medical system of claim 12, wherein the at least one degree-of-freedom comprises an axial rotation of the medical implement.

21. The robotic medical system of claim 12, wherein the at least one degree-of-freedom comprises a linear translation of the medical implement.

22. The robotic medical system of claim 12, wherein the user interface includes at least one of a dial, joystick, wheel, and mouse.

23. The robotic medical system of claim 12, wherein the user interface is located remotely from the drive mechanism.

24. The robotic medical system of claim 12, wherein the electrical controller is coupled to the motor via external cabling.

25. The robotic medical system of claim 12, wherein the medical implement is a catheter.