IP Library Granted Patent US 7,747,302
Granted Patent B2
US 7,747,302 · App. 11/836,030 · Granted Jun 29, 2010

Method for integrating facilitated blood flow and blood analyte monitoring

Assignee: Lifescan, Inc.
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Quick Facts
Patent No.
US 7,747,302
App. No.
11/836,030
Filed
Aug 8, 2007
Granted
Jun 29, 2010
Kind
B2
Art Unit
3768
USPC
600/341
Abstract

A method for the integrated facilitization of blood flow and monitoring of blood analyte concentration (for example, blood glucose concentration) includes implanting a stent configured to facilitate blood flow into a cardiovascular system of a user's body with the stent having attached thereto a continuous blood analyte determination module of a blood analyte monitoring system. The method also includes disposing a reader module of the blood analyte monitoring system external to the user's body and in proximity to a portion of the user's skin layer and monitoring blood analyte concentration via (i) emitting an RF carrier signal from the reader module toward the stent; (ii) receiving the RF carrier signal at a reflection antenna of the continuous blood analyte determination module; (iii) reflecting a modulated signal by the reflection antenna with the modulated signal being encoded with a blood analyte concentration determined by a sensor of the continuous blood analyte determination module; (iv) receiving the modulated signal by the reader module; and (v) decoding the analyte concentration from the modulated signal by the reader module.

Claims (29)

1. A method for the integrated facilitization of blood flow and monitoring of blood analyte concentration comprising:

implanting a stent configured for implantation into a cardiovascular system of a user's body, the stent having a longitudinal centerline and configured to facilitate blood flow, the stent having attached thereto a continuous blood analyte determination module of a blood analyte monitoring system;

disposing a reader module of the blood analyte monitoring system external to the user's body and in proximity to a portion of the user's skin layer;

monitoring a blood analyte concentration using the reader module and the continuous blood analyte determination module,

wherein the monitoring step is accomplished by:

emitting an RF carrier signal from a first antenna of the reader module toward the stent;

receiving the RF carrier signal at a reflection antenna of the continuous blood analyte determination module;

reflecting a modulated signal by the reflection antenna wherein the modulated signal is encoded with a blood analyte concentration determined by a sensor of the continuous blood analyte determination module;

receiving the modulated signal by a second antenna of the reader module; and

decoding the analyte concentration from the modulated signal by the reader module; and

wherein the first antenna and second antenna are configured such that an RF carrier signal angle β and a modulated signal angle α are both less than about 30 degrees with respect to the stent center line.

2. The method of claim 1 wherein the reader module emits an RF carrier signal that is essentially perpendicular to the portion of the user's skin layer.

3. The method of claim 1 wherein the implanting step implants the stent such that the longitudinal centerline is essentially perpendicular to the portion of the user's skin layer.

4. The method of claim 1 wherein the first antenna is separated from the second antenna by a distance in the range of about 5 millimeters to about 50 millimeters.

5. The method of claim 1 , wherein the disposing step is accomplished by disposing the reader module immediately adjacent to the portion of the user's skin layer.

6. A method for the integrated facilitization of blood flow and monitoring of blood analyte concentration comprising:

implanting a stent configured for implantation into a cardiovascular system of a user's body, the stent having a longitudinal centerline and configured to facilitate blood flow, the stent having attached thereto a continuous blood analyte determination module of a blood analyte monitoring system;

disposing a reader module of the blood analyte monitoring system external to the user's body and in proximity to a portion of the user's skin layer;

monitoring a blood analyte concentration using the reader module and the continuous blood analyte determination module,

wherein the monitoring step is accomplished by:

emitting an RF carrier signal from the reader module toward the stent;

receiving the RF carrier signal at a reflection antenna of the continuous blood analyte determination module;

reflecting a modulated signal by the reflection antenna wherein the modulated signal is encoded with a blood analyte concentration determined by a sensor of the continuous blood analyte determination module;

receiving the modulated signal by a second antenna of the reader module; and

decoding the analyte concentration from the modulated signal by the reader module; and

wherein the first antenna and second antenna are configured such that an RF carrier signal angle β and a modulated signal angle α are both approximately 90 degrees with respect to the stent center line.

7. The method of claim 6 wherein the implanting step implants the stent such that the longitudinal centerline is essentially parallel to the portion of the user's skin layer.

8. The method of claim 6 wherein the first antenna is separated from the second antenna by a distance in the range of about 5 millimeters to about 50 millimeters.

9. The method of claim 6 , wherein the disposing step is accomplished by disposing the reader module immediately adjacent to the portion of the user's skin layer.

Assignments (19)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 18, 2026
From: LIFESCAN GLOBAL CORPORATION; LIFESCAN CHINA, LLC; LIFESCAN IP HOLDINGS, LLC
To: LIFESCAN ENTERPRISES LLC
Reel/Frame 075848/0012 →
SECURITY INTEREST Recorded Dec 8, 2025
From: LIFESCAN ENTERPRISES LLC
To: ACQUIOM AGENCY SERVICES LLC, AS COLLATERAL AGENT
Reel/Frame 073890/0305 →
RELEASE OF SECURITY INTEREST Recorded Dec 8, 2025
From: ANKURA TRUST COMPANY, LLC
To: LIFESCAN IP HOLDINGS, LLC
Reel/Frame 073929/0495 →
RELEASE OF SECURITY INTEREST Recorded Dec 8, 2025
From: WILMINGTON SAVINGS FUND SOCIETY, FSB
To: LIFESCAN IP HOLDINGS, LLC
Reel/Frame 073929/0316 →
RELEASE OF SECURITY INTEREST Recorded Dec 8, 2025
From: WILMINGTON SAVINGS FUND SOCIETY, FSBWILMINGTON SAVINGS FUND SOCIETY, FSB
To: LIFESCAN IP HOLDINGS, LLC
Reel/Frame 073928/0626 →
SECURITY AGREEMENT Recorded Dec 8, 2025
From: LIFESCAN ENTERPRISES LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 073893/0622 →
ASSIGNMENT OF PATENT SECURITY INTERESTS (1ST LIEN) Recorded Aug 22, 2025
From: BANK OF AMERICA, N.A.
To: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS SUCCESSOR AGENT
Reel/Frame 072567/0482 →
TRANSFER OF SECURITY AGREEMENT RECORDED AT REEL 063740, FRAME 0080 Recorded Nov 12, 2024
From: BANK OF AMERICA, N.A., AS RESIGNING AGENT
To: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS SUCCESSOR AGENT
Reel/Frame 069340/0243 →
TRANSFER OF SECURITY AGREEMENT RECORDED AT REEL 047179, FRAME 0150 Recorded Nov 11, 2024
From: BANK OF AMERICA, N.A., AS RESIGNING AGENT
To: ANKURA TRUST COMPANY, LLC, AS SUCCESSOR AGENT
Reel/Frame 069314/0022 →
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY LIST BY ADDING PATENTS 6990849;7169116; 7351770;7462265;7468125; 7572356;8093903; 8486245;8066866;AND DELETE 10881560. PREVIOUSLY RECORDED ON REEL 050836 FRAME 0737. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Aug 28, 2023
From: LIFESCAN INC.
To: CILAG GMBH INTERNATIONAL
Reel/Frame 064782/0443 →
RELEASE OF SECOND LIEN PATENT SECURITY AGREEMENT RECORDED OCT. 3, 2018, REEL/FRAME 047186/0836 Recorded Jun 28, 2023
From: BANK OF AMERICA, N.A.
To: LIFESCAN IP HOLDINGS, LLC; JANSSEN BIOTECH, INC.; JOHNSON & JOHNSON CONSUMER INC.
Reel/Frame 064206/0176 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded May 23, 2023
From: LIFESCAN IP HOLDINGS, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 063740/0080 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded May 22, 2023
From: LIFESCAN IP HOLDINGS, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 063712/0430 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2019
From: CILAG GMBH INTERNATIONAL
To: LIFESCAN IP HOLDINGS, LLC
Reel/Frame 050837/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2019
From: LIFESCAN INC.
To: CILAG GMBH INTERNATIONAL
Reel/Frame 050836/0737 →
SECURITY AGREEMENT Recorded Oct 3, 2018
From: LIFESCAN IP HOLDINGS, LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 047186/0836 →
SECURITY AGREEMENT Recorded Oct 2, 2018
From: LIFESCAN IP HOLDINGS, LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 047179/0150 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2007
From: MILLEDGE, ERIC
To: LIFESCAN, INC.
Reel/Frame 019856/0554 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 8, 2007
From: KERMANI, MAHYAR Z.
To: LIFESCAN, INC.
Reel/Frame 019667/0980 →
Continuity (1)
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