US7166074B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reusable analyte sensor site and method of using the same
Assignee: Medtronic Minimed Inc
•
Filing: 2003-06-02
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Granted: 2007-01-23
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Expires: 2023-06-02
Abstract
Abstract A reusable analyte sensor site for use with a replaceable analyte sensor for determining a level of an analyte includes a site housing and a resealable insertion site coupled to one end of the site housing. Preferably, the site housing is formed to have an interior cavity, and includes an outer membrane made of a material selected to promote vascularization and having a first pore size, and an inner membrane made of a material selected to be free of tissue ingress. Also, the site housing permits the analyte to pass through the site housing to the interior cavity to permit measurement by the replaceable analyte sensor. The resealable insertion site is provided for inserting the replaceable analyte sensor into the interior cavity of the site housing.
Inventors
- 👤 Bahar Reghabi
- 👤 Rajiv Shah
- 👤 Eunjoo Jin
- 👤 Rebecca Gottlieb
- 👤 Michael E. Miller
- 👤 Nannette M. Van Antwerp
- 👤 Bradley J. Enegren
- 👤 William P. Van Antwerp
- 👤 John J. Mastrototaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:09
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/14532; A61B5/14503; A61B5/07; A61B5/076; A61B5/14546; A61B5/1455; A61B5/1459; A61B5/1468; A61B5/1486; A61B5/14865; A61M; A61M39/00; A61M39/02; A61M39/0208
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
151 words
A reusable analyte sensor site for use with a replaceable analyte sensor for determining a level of an analyte in a patient, the site comprising: a site housing formed to have an interior cavity and comprising: an outer membrane being made of a material selected to promote vascularization and having a first pore size; and an inner membrane being made of a material selected to be free of tissue ingress and having a second pore size, wherein the second pore size of the inner membrane is larger than the first pore size of the outer membrane, and wherein the site housing permits fluid including the analyte to pass through the site housing to the interior cavity to permit measurement by the replaceable analyte sensor; and a resealable insertion site coupled to one end of the site housing for inserting the replaceable analyte sensor into the interior cavity of the site housing.
Claim 2
Dependent Claim
151 words
A reusable analyte sensor site for use with a replaceable analyte sensor for determining a level of an analyte in a patient, the site comprising: a site housing formed to have an interior cavity and comprising: an outer membrane being made of a material selected to promote vascularization and having a first pore size; and an inner membrane being made of a material selected to be free of tissue ingress and having a second pore size, wherein the second pore size of the inner membrane is larger than the first pore size of the outer membrane, and wherein the site housing permits fluid including the analyte to pass through the site housing to the interior cavity to permit measurement by the replaceable analyte sensor; and a resealable insertion site coupled to one end of the site housing for inserting the replaceable analyte sensor into the interior cavity of the site housing.
Claim 3
Dependent Claim
27 words
A site according to claim 1 , wherein the first pore size of the outer membrane is larger than the second pore size of the inner membrane.
Claim 4
Dependent Claim
21 words
A site according to claim 1 , wherein the outer membrane and the inner membrane are made of the same material.
Claim 5
Dependent Claim
20 words
A site according to claim 1 , wherein the outer membrane and the inner membrane are made of different materials.
Claim 6
Dependent Claim
34 words
A site according to claim 1 , wherein the outer membrane is made of a material selected from a group of materials consisting essentially of polytetra fluoroethylene, porous polyurethane, porous silicone, and silicone foam.
Claim 7
Dependent Claim
34 words
A site according to claim 1 , wherein the inner membrane is made of a material selected from a group of materials consisting essentially of polytetra fluoroethylene, porous polyurethane, porous silicone, and silicone foam.
Claim 8
Dependent Claim
33 words
A site according to claim 1 , wherein the site housing further comprises at least one intermediate membrane disposed between the outer membrane and the inner membrane and having a third pore size.
Claim 9
Dependent Claim
31 words
A site according to claim 7 , wherein the third pore size is between the first pore size of the outer membrane and the second pore size of the inner membrane.
Claim 10
Dependent Claim
76 words
A site according to claim 1 , wherein the resealable insertion site includes: a tube coupled to one end of the site housing; and a sealing member having a resealable opening, wherein the tube is coupled between the site housing and the sealing member; wherein the replaceable analyte sensor is inserted through the resealable opening, and the resealable opening is sealed upon placement of the replaceable analyte sensor within the interior cavity of the site housing.
Claim 11
Dependent Claim
25 words
A site according to claim 9 , wherein the sealing member is a suture disc for attaching the tube to body tissue of the patient.
Claim 12
Dependent Claim
25 words
A site according to claim 9 , wherein the sealing member is a sewing cuff for attaching the tube to body tissue of the patient.
Claim 13
Dependent Claim
17 words
A site according to claim 9 , wherein the resealable opening is sealed using a compression seal.
Claim 14
Dependent Claim
17 words
A site according to claim 9 , wherein the resealable opening is sealed using a mechanical seal.
Claim 15
Dependent Claim
26 words
A site according to claim 1 , wherein the sensor site is adapted for connection to an injection site for delivering fluids into the site housing.
Claim 16
Dependent Claim
34 words
A site according to claim 1 , wherein the site housing is for implantation into inter-peritoneal tissue of the patient, and the resealable insertion site is for implantation into subcutaneous tissue of the patient.
Claim 17
Dependent Claim
32 words
A site according to claim 1 , wherein the site housing will last for a period of time such that it can be used with two or more consecutive replaceable analyte sensors.
Claim 18
Dependent Claim
23 words
A site according to claim 1 , wherein the site housing passes glucose, and wherein the replaceable analyte sensor is a glucose sensor.
Claim 19
Dependent Claim
28 words
A site according to claim 1 , wherein the interior cavity has a predetermined size to inhibit stagnation of the fluid including the analyte within the interior cavity.
Claim 20
Independent Claim
162 words
A system for measuring an analyte in a body of a patient, the system comprising: a replaceable analyte sensor for determining a level of the analyte in the body of the patient; and a reusable analyte sensor site including: a site housing formed to have an interior cavity and comprising: an outer membrane being made of a material selected to promote vascularization and having a first pore size; and an inner membrane being made of a material selected to be free of tissue ingress and having a second pore size, wherein the second pore size of the inner membrane is larger than the first pore size of the outer membrane, and wherein the site housing permits fluid including the analyte to pass through the site housing to the interior cavity to permit measurement by the replaceable analyte sensor; and a resealable insertion site coupled to the site housing for inserting the replaceable analyte sensor into the interior cavity of the site housing.
Claim 21
Independent Claim
162 words
A system for measuring an analyte in a body of a patient, the system comprising: a replaceable analyte sensor for determining a level of the analyte in the body of the patient; and a reusable analyte sensor site including: a site housing formed to have an interior cavity and comprising: an outer membrane being made of a material selected to promote vascularization and having a first pore size; and an inner membrane being made of a material selected to be free of tissue ingress and having a second pore size, wherein the second pore size of the inner membrane is larger than the first pore size of the outer membrane, and wherein the site housing permits fluid including the analyte to pass through the site housing to the interior cavity to permit measurement by the replaceable analyte sensor; and a resealable insertion site coupled to the site housing for inserting the replaceable analyte sensor into the interior cavity of the site housing.
Claim 22
Dependent Claim
27 words
A system according to claim 19 , wherein the first pore size of the outer membrane is larger than the second pore size of the inner membrane.
Claim 23
Dependent Claim
21 words
A system according to claim 19 , wherein the outer membrane and the inner membrane are made of the same material.
Claim 24
Dependent Claim
20 words
A system according to claim 19 , wherein the outer membrane and the inner membrane are made of different materials.
Claim 25
Dependent Claim
34 words
A system according to claim 19 , wherein the outer membrane is made of a material selected from a group of materials consisting essentially of polytetra fluoroethylene, porous polyurethane, porous silicone, and silicone foam.
Claim 26
Dependent Claim
34 words
A system according to claim 19 , wherein the inner membrane is made of a material selected from a group of materials consisting essentially of polytetra fluoroethylene, porous polyurethane, porous silicone, and silicone foam.
Claim 27
Dependent Claim
33 words
A system according to claim 19 , wherein the site housing further comprises at least one intermediate membrane disposed between the outer membrane and the inner membrane and having a third pore size.
Claim 28
Dependent Claim
31 words
A system according to claim 25 , wherein the third pore size is between the first pore size of the outer membrane and the second pore size of the inner membrane.
Claim 29
Dependent Claim
76 words
A system according to claim 19 , wherein the resealable insertion site includes: a tube coupled to one end of the site housing; and a sealing member having a resealable opening, wherein the tube is coupled between the site housing and the sealing member; wherein the replaceable analyte sensor is inserted through the resealable opening, and the resealable opening is sealed upon placement of the replaceable analyte sensor within the interior cavity of the site housing.
Claim 30
Dependent Claim
25 words
A system according to claim 27 , wherein the sealing member is a suture disc for attaching the tube to body tissue of the patient.
Claim 31
Dependent Claim
25 words
A system according to claim 27 , wherein the sealing member is a sewing cuff for attaching the tube to body tissue of the patient.
Claim 32
Dependent Claim
17 words
A system according to claim 27 , wherein the resealable opening is sealed using a compression seal.
Claim 33
Dependent Claim
17 words
A system according to claim 27 , wherein the resealable opening is sealed using a mechanical seal.
Claim 34
Dependent Claim
28 words
A system according to claim 19 , wherein the reusable analyte sensor site is adapted for connection to an injection site for delivering fluids into the site housing.
Claim 35
Dependent Claim
34 words
A system according to claim 19 , wherein the site housing is for implantation into inter-peritoneal tissue of the patient, and the resealable insertion site is for implantation into subcutaneous tissue of the patient.
Claim 36
Dependent Claim
32 words
A system according to claim 19 , wherein the site housing will last for a period of time such that it can be used with two or more consecutive replaceable analyte sensors.
Claim 37
Dependent Claim
23 words
A system according to claim 19 , wherein the site housing passes glucose, and wherein the replaceable analyte sensor is a glucose sensor.
Claim 38
Dependent Claim
28 words
A system according to claim 19 , wherein the interior cavity has a predetermined size to inhibit stagnation of the fluid including the analyte within the interior cavity.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-01-22 | 2010-07-24 | 2011-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-01-22 | 2014-07-24 | 2015-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-01-22 | 2018-07-24 | 2019-01-23 | $7700.00 | Window Closed / Lapsed |