Systems and methods for internal tissue penetration

• US 8,005,529 B2
• Filed: 03/29/2010
• Issued: 08/23/2011
• Est. Priority Date: 03/21/2003
• Status: Active Grant

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Stryker Corporation, Stryker Nv Operations Limited (Stryker Corporation)
• Inventors: Koger, James D., Chopra, Gopal, Ramzipoor, Kamal
• Primary Examiner(s): Casler; Brian
• Assistant Examiner(s): Kish; James
• Application Number:
  US12/749,234
• Publication Number:
  US 20100185054A1
• Time in Patent Office: 512 Days
• Field of Search: 600/407, 600/437, 600/443, 600/459, 600/462, 600/466, 600/467, 600/473, 600/476, 600/101, 600/109, 600/112, 604/22
• US Class Current: 600/407
• CPC Class Codes: A61B 1/00082 Balloons
• CPC Class Codes: A61B 1/00087 Tools A61B17/00234 takes precedence
• CPC Class Codes: A61B 1/00135 Oversleeves mounted on the endoscope prior to insertion
• CPC Class Codes: A61B 1/3132 for laparoscopy
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/22075 with motorized advancing or retracting means
• CPC Class Codes: A61B 2017/22077 with a part piercing the tissue A61B2017/22044 takes precedence
• CPC Class Codes: A61B 2017/22078 for rotating the instrument within a channel, e.g. an optical fibre
• CPC Class Codes: A61B 2017/320004 abrasive
• CPC Class Codes: A61B 2018/00392 Transmyocardial revascularisation
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 2090/3782 transmitter or receiver in catheter or minimal invasive instrument
• CPC Class Codes: A61B 5/0066 Optical coherence imaging
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/445 Details of catheter construction

Abstract

A medical system includes an inner core and an imager located at the distal end of the inner core, wherein the imager is extendable from within an elongated tubular member and configured to penetrate a body tissue within a living body. The elongated tubular member is configured to slideably receive the inner core. The inner core is configured to rotate radially around a longitudinal axis of the elongated member, and the imager can be configured to image a body tissue and output an image signal to an imaging system communicatively coupled with the imager. The imaging system is configured to generate an image of the body tissue from the image signal of the imager when the imager is rotated and placed into contact with the body tissue.

Claims

1. A medical system, comprising:

a flexible inner core comprising a distal end, the distal end of the inner core comprising an imager configured to generate an image signal and to penetrate body tissue by application of axial force while being rotated;

a flexible elongated tubular member configured to slideably receive act the inner core, the tubular member having a distal end configured to allow the inner core to advance outside the elongated member, the inner core configured to rotate radially about a longitudinal axis of the elongated member, wherein the inner core is movable between a first position where the distal end of the inner core is disposed within the tubular member, and a second position where the inner core distal end is disposed distally of the tubular member distal end;

an imaging system communicatively coupled with the imager and configured to generate an image of the body tissue from the image signal of the imager.

2. The system of claim 1, wherein a distal end of the imager is configured to penetrate the body tissue.

3. The system of claim 2, wherein the distal end of the imager is substantially flat.

4. The system of claim 1, wherein the imaging system comprises a display configured to display the image and facilitate the location of a safe penetration region of the body tissue.

5. The system of claim 1, further comprising a control system configured to control the rotation of the inner core.

6. The system of claim 5, wherein the control system is further configured to measure a level of torque applied to the inner core.

7. The system of claim 1, wherein the elongated member is insertable into a lumen of a body.

8. The system of claim 1, further comprising a stop device configured to prevent the inner core from advancement greater than a pre-determined length past the distal end of the elongated member.

9. The system of claim 1, further comprising a gauge configured to gauge the advancement of the inner core past the distal end of the elongated member.

10. The system of claim 1, further comprising a control system coupled to a proximal end of the inner core and configured to measure a level of torque applied to the inner core when the imager penetrates the body tissue.

11. The system of claim 10, wherein the control system is further configured to control advancement of the inner core outside the elongated member and to stop advancement of the inner core when a pre-determined level of torque on the inner core is reached.

12. A medical system, comprising:

a flexible inner core comprising a distal end, the distal end of the inner core comprising an imager configured to generate an image signal, the imager having a substantially flat distal end configured to penetrate body tissue by application of axial force while being rotated;

a flexible elongated tubular member configured to slideably receive the inner core, the tubular member having a distal end configured to allow the inner core to advance outside the elongated member, the inner core configured to rotate radially about a longitudinal axis of the elongated member, wherein the inner core is movable between a first position where the distal end of the inner core is disposed within the tubular member, and a second position where the inner core distal end is disposed distally of the tubular member distal end;

an imaging system comprising a display, the imaging system communicatively coupled with the imager and configured to generate and display an image of the body tissue from the image signal of the imager; and

a control system configured to control the rotation of the inner core.

13. The system of claim 12, wherein the control system is further configured to measure a level of torque applied to the inner core.

14. A medical system, comprising:

a flexible, rotatable inner core comprising a distal end, the distal end of the inner core comprising an imager configured to generate an image signal, the imager having a distal end configured to penetrate body tissue by application of axial force while being rotated;

a flexible elongated tubular member configured to slideably receive the rotatable inner core, the tubular member having a distal end configured to allow the inner core to advance outside the elongated member, wherein the inner core is movable between a first position where the distal end of the inner core is disposed within the tubular member, and a second position where the inner core distal end is disposed distally of the tubular member distal end;

an imaging system communicatively coupled with the imager and configured to generate an image of the body tissue from the image signal of the imager; and

a control system coupled to a proximal end of the inner core and configured to measure a level of torque applied to the inner core when the imager distal end penetrates the body tissue, wherein the control system is further configured to control advancement of the inner core outside the elongated member and to stop advancement of the inner core when a pre-determined level of torque on the inner core is reached.

15. The system of claim 14, further comprising a gauge configured to gauge the advancement of the inner core past the distal end of the elongated member.

16. The system of claim 14, further comprising a stop device configured to prevent the inner core from advancement greater than a pre-determined length past the distal end of the elongated member.