Implantable Medical Sensor and Anchoring System
First Claim
1. An implantable sensor assembly comprising:
- a sensor housing containing a sensing system adapted to sense a physiological parameter of a patient, the sensing system including a sensing element exposed exteriorly of the housing;
an anchor resiliently self-expandable from a low profile configuration to an expanded configuration adapted to engage the walls of the lumen of a vessel to maintain its position in the vessel, the anchor comprising a plurality of struts interconnected at junctures to define a tubular configuration with proximal and distal ends, the proximal end of the anchor being defined by a pair of proximal struts connected at a single proximal juncture;
the struts and junctures being arranged, when the anchor is in its expanded configuration, to lie along and define an imaginary tubular surface;
the anchor including an attachment strut extending in a distal direction from one of the junctures;
the sensor housing having a connector receptive to the attachment strut, the connector being securely connected to the attachment strut, the attachment strut and connector being arranged to orient the sensor housing within and between the ends of the anchor with the housing extending in a distal direction and disposed adjacent the vessel wall with the sensing element facing the lumen of the vessel.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical device adapted to be implanted in a vessel of a human body includes a housing that contains means for performing medical functions and an anchor for supporting the housing in an intended location and orientation within the vessel. The anchor is expandable from a low profile configuration adapted for delivery to an expanded configuration for engagement with the vessel wall. The anchor and delivery device are adapted to enable the medical device to be retrieved and repositioned or removed from the vessel. The anchor is adapted to apply sufficient force against the vessel wall to maintain the anchor in place but less force than that required to provide scaffolding support for the vessel.
19 Citations
15 Claims
-
1. An implantable sensor assembly comprising:
-
a sensor housing containing a sensing system adapted to sense a physiological parameter of a patient, the sensing system including a sensing element exposed exteriorly of the housing; an anchor resiliently self-expandable from a low profile configuration to an expanded configuration adapted to engage the walls of the lumen of a vessel to maintain its position in the vessel, the anchor comprising a plurality of struts interconnected at junctures to define a tubular configuration with proximal and distal ends, the proximal end of the anchor being defined by a pair of proximal struts connected at a single proximal juncture; the struts and junctures being arranged, when the anchor is in its expanded configuration, to lie along and define an imaginary tubular surface; the anchor including an attachment strut extending in a distal direction from one of the junctures; the sensor housing having a connector receptive to the attachment strut, the connector being securely connected to the attachment strut, the attachment strut and connector being arranged to orient the sensor housing within and between the ends of the anchor with the housing extending in a distal direction and disposed adjacent the vessel wall with the sensing element facing the lumen of the vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An implantable sensor assembly adapted for placement in a region of a human pulmonary artery of a patient, the region having a diameter of about ten millimeters, the assembly, comprising:
-
a sensor housing containing a sensing system and adapted to sense a physiological parameter within the patient'"'"'s pulmonary artery, the sensing system including a sensing element exposed exteriorly of the housing; an anchor expandable from a low profile configuration to an expanded configuration adapted to engage the wall of the lumen of the artery to maintain its position in the artery, the anchor comprising a plurality of struts interconnected at junctures to define a tubular configuration with proximal and distal ends, the proximal end of the anchor being defined by a pair of proximal struts connected at a single proximal juncture; the struts and junctures being arranged, when the anchor is in its expanded configuration, to lie along and define an imaginary frustoconical surface, the distal end of the anchor defining a diameter of about twelve millimeters, the conical surface defining a cone angle of about twenty two degrees; the anchor including an attachment strut extending in a distal direction from one of the junctures; the sensor housing having a connector receptive to the attachment strut, the connector being securely connected to the attachment strut, the attachment strut and connector being arranged to orient the housing within and between the ends of the anchor with the housing extending in a distal direction and disposed adjacent the vessel wall with the sensing element facing the lumen of the vessel. - View Dependent Claims (13, 14, 15)
-
Specification