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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0779282 (2001-02-08) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 599 인용 특허 : 21 |
A sensor and method of making the same for implantation in a body that includes a substrate with notches cut in the substrate to form a necked down region in the substrate; and at least one sensor electrode formed from one or more conductive layers. Preferably, the thickness of the substrate ranges
A sensor and method of making the same for implantation in a body that includes a substrate with notches cut in the substrate to form a necked down region in the substrate; and at least one sensor electrode formed from one or more conductive layers. Preferably, the thickness of the substrate ranges from approximately 25μ to 350μ, but the thickness of the substrate can range from 5μ to 750μ. The sensor may be incorporated in to a sensor assembly includes a slotted needle having a slot. The notches creating the necked down region allow the substrate to slide into the slotted needle, which that has the slot narrow enough to permit passage of the necked down region. However, a non-necked down region of the substrate is prevented from pulling out of the slotted needle through the slot. The slot of the slotted needle may also permit the necked down region of the substrate to slide down the slot.
What is claimed is: 1. An analyte sensor for implantation in a body for use with a slotted needle, the sensor comprising: a substrate with notches cut in the substrate to form a necked down region in the substrate and a non-necked down region in the substrate wherein the non-necked down region is d
What is claimed is: 1. An analyte sensor for implantation in a body for use with a slotted needle, the sensor comprising: a substrate with notches cut in the substrate to form a necked down region in the substrate and a non-necked down region in the substrate wherein the non-necked down region is distal to the notch which forms the necked down region and is for placement within the body; and at least one sensor electrode formed from one or more conductive layers, wherein the notches creating the necked down region allow the substrate to slide into the slotted needle that has a slot narrow enough to permit passage of the necked down region, but prevents the non-necked down region of the substrate from slipping out of the slotted needle, and wherein the notches cut in the substrate do not expose any sensor electrode to analytes. 2. The sensor in accordance with claim 1, wherein the thickness of the substrate ranges from approximately 25μ to 350μ. 3. The sensor in accordance with claim 1, wherein the thickness of the substrate ranges from 5μ to 750μ. 4. The sensor in accordance with claim 1, wherein a width of the substrate in the non-necked down region is sized to fit within a slotted needle having a diameter smaller than 21 gauge. 5. The sensor in accordance with claim 1, wherein a width of the substrate in the non-necked down region is sized to fit within a slotted needle having a diameter smaller than 22 gauge. 6. The sensor in accordance with claim 1, wherein a width of the substrate in the non-necked down region is sized to fit within a slotted needle having a diameter smaller than 23 gauge. 7. The sensor in accordance with claim 1, wherein a width of the substrate in the non-necked down region is sized to fit within a slotted needle having a diameter smaller than 24 gauge. 8. The sensor in accordance wit claim 1, wherein at least one of the at least one sensor electrode is formed on a first surface of the substrate. 9. The sensor in accordance with claim 8, wherein all of the at least one sensor electrode are only formed on the first surface. 10. The sensor in accordance with claim 8, wherein at least another one of the at least one sensor electrodes is formed on a second surface of the substrate. 11. The sensor in accordance with claim 10, wherein a third one of the at least one sensor electrode is a reference electrode configured to contact a skin surface. 12. A sensor set for use with the sensor in accordance with claim 1 comprising: a mounting base adapted for mounting onto a patient's skin; and an insertion needle carried by the mounting base to protrude from the mounting base ad having at least a portion of the sensor nested within the insertion needle, the insertion needle defining a longitudinally extending slot along one side to permit sliding withdrawal of the insertion needle from the mounting base and the nested portion of the sensor and to accept the necked down region of the substrate. 13. The sensor of claim 1, wherein the notches are cut in the width of the substrate to form the necked down region of the substrate. 14. An analyte sensor system for implantation in a body, the sensor system comprising: a slotted needle; a substrate with notches cut in the substrate to form a necked down region in the substrate and a non-necked down region in the substrate wherein to non-necked down region is distal to the notch which forms the necked down region and is for placement within the body; and at least one sensor electrode formed from one or more conductive layers, wherein the notches creating the necked down region allow the substrate to slide into the slotted needle that has a slot narrow enough to permit passage of the necked down region, but prevents the non-necked down region of the substrate from slipping out of the slotted needle, and wherein the notches cut in the substrate do not expose any sensor electrode to analytes.
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