Deployable sensor platform on the lead system of an implantable device

• US 8,694,129 B2
• Filed: 01/12/2010
• Issued: 04/08/2014
• Est. Priority Date: 02/13/2009
• Status: Active Grant

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Li, Dan, Shuros, Allan C., Acuna, Andrea, Tockman, Bruce A.
• Primary Examiner(s): MALAMUD, DEBORAH LESLIE
• Application Number:
  US12/686,050
• Publication Number:
  US 20100210923A1
• Time in Patent Office: 1,547 Days
• Field of Search: 600/300, 600372-373, 600/377, 600/381, 606/1, 606/129, 607 1- 2, 607/115, 607/116, 607/122
• US Class Current: 607/122
• CPC Class Codes: A61B 5/283 Invasive
• CPC Class Codes: A61B 5/6846 specially adapted to be brought in contact with an internal body part, i.e. invasive
• CPC Class Codes: A61B 5/6852 Catheters
• CPC Class Codes: A61M 2025/0681 Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
• CPC Class Codes: A61M 25/0082 Catheter tip comprising a tool
• CPC Class Codes: A61M 25/01 Introducing, guiding, advancing, emplacing or holding catheters A61M25/10 takes precedence
• CPC Class Codes: A61M 25/0102 Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod
• CPC Class Codes: A61M 25/0662 Guide tubes
• CPC Class Codes: A61N 1/056 Transvascular endocardial electrode systems
• CPC Class Codes: A61N 1/37211 Means for communicating with stimulators
• CPC Class Codes: A61N 2001/0585 Coronary sinus electrodes

Abstract

Systems and methods for deploying a sensor assembly onto a cardiac lead are disclosed. The sensor assembly can include a resilient cuff having one or more sensor modules for sensing physiological parameters within the body. The resilient cuff may have a substantially cylindrical shape having an inner diameter that is smaller than an outer diameter of the lead body onto which the cuff is deployed such that the cuff is retained on the lead body by frictional forces. The sensor assembly may be deployed in conjunction with a new lead to be implanted within a chamber of the patient'"'"'s heart or a body vessel, or may be deployed onto an existing, implanted lead implanted within the patient'"'"'s body.

Claims

1. A medical electrical lead configured for deployment within a vessel of a cardiovascular system, comprising:

a lead body having a proximal section and a distal section, the proximal section of the lead body adapted to connect to a pulse generator;

at least one electrical conductor extending within the lead body;

at least one electrode located on the lead body and operatively coupled to the at least one electrical conductor;

a resilient cuff sized and configured for frictional engagement with an outer surface of the lead body, the resilient cuff adapted to be disposed circumferentially about the lead body when the lead and the resilient cuff are deployed within the vessel; and

at least one sensor module coupled to the cuff such that the sensor module is disposed in the vessel when the lead is disposed in the vessel, the at least one sensor module including a sensor adapted to detect at least one physiological parameter from within the vessel.

2. The lead according to claim 1, wherein the sensor module further comprises an electrical conductor adapted to connect to the pulse generator.

3. The lead according to claim 1, wherein the sensor is a wireless sensor and is adapted to communicate wirelessly to an external device.

4. The lead according to claim 1, wherein the sensor is a wireless sensor and is adapted to communicate wirelessly with a pulse generator.

5. The lead according to claim 1, wherein the at least one physiological parameter is selected from the group of parameters including blood pressure, temperature, blood gas content, strain, or fluid flow.

6. The lead according to claim 1, wherein the at least one physiological parameter includes blood pressure.

7. The lead according to claim 1, wherein the sensor module comprises a first sensor adapted to detect a first physiological parameter and a second sensor adapted to detect a second physiological parameter.

8. The lead according to claim 1, wherein the cuff includes a slit extending from a first end of the cuff to a second end of the cuff, the slit comprising a width W smaller than an outer diameter of the lead body, the slit configured to expand such that the cuff width increases to a size sufficient to receive the lead body within an interior section of the cuff.

9. The lead according to claim 1, wherein an inner diameter of the cuff is smaller than an outer diameter of the lead body.

10. The lead according to claim 1, wherein the cuff comprises a shape memory material.

11. A medical electrical lead configured for deployment within a cardiac vessel, comprising:

a lead body having a proximal section and a distal section, the proximal section of the lead body adapted to connect to a pulse generator;

at least one electrical conductor extending within the lead body;

at least one electrode located on the lead body and operatively coupled to the at least one electrical conductor;

a resilient cuff configured for frictional engagement with the outer surface of the lead body, the resilient cuff adapted to be disposed circumferentially about the lead body when the lead and the resilient cuff are deployed within the cardiac vessel; and

at least one sensor module coupled to the cuff such that the sensor module is disposed in the vessel when the lead is disposed in the vessel, the at least one sensor module including a sensor adapted to detect at least one physiological parameter from within the vessel;

wherein the sensor is a wireless sensor and is adapted to communicate wirelessly to an external device.

12. The lead according to claim 11, wherein the wireless sensor is further adapted to communicate wirelessly with a pulse generator.

13. The lead according to claim 11, wherein the at least one physiological parameter is selected from the group of parameters including blood pressure, temperature, blood gas content, strain, or fluid flow.

14. The lead according to claim 13, wherein the at least one physiological parameter includes blood pressure.

15. The lead according to claim 11, wherein the sensor module comprises a first sensor adapted to detect a first physiological parameter and a second sensor adapted to detect a second physiological parameter.

16. The lead according to claim 11, wherein the cuff includes a slit extending from a first end of the cuff to a second end of the cuff, the slit comprising a width W smaller than an outer diameter of the lead body, the slit configured to expand such that the cuff width increases to a size sufficient to receive the lead body within an interior section of the cuff.

17. The lead according to claim 11, wherein an inner diameter of the cuff is smaller than an outer diameter of the lead body.

18. The lead according to claim 11, wherein the cuff comprises a shape memory material.