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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0008159 (2001-11-06) |
등록번호 | US-7780631 (2010-09-13) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 7 인용 특허 : 642 |
An apparatus having a shaft that can sense the depth of penetration, for penetrating into an object (the substrate). The substrate being penetrated has impedance that varies according to the depth under a surface of the substrate. The shaft has a tip for penetration and has conductive ends near to t
An apparatus having a shaft that can sense the depth of penetration, for penetrating into an object (the substrate). The substrate being penetrated has impedance that varies according to the depth under a surface of the substrate. The shaft has a tip for penetration and has conductive ends near to the tip of the shaft. A change of impedance of material of the object between the conductive ends can be sensed to provide information on the depth of penetration. A processor can be provided external to the object being penetrated by the shaft to gather and process the impedance information to determine whether the desired depth has been achieved.
What is claimed is: 1. A tissue penetrating device for sampling body fluid from a patient and for use with a penetrating member, the device comprising: an electrical driver coupled to provide force that moves said penetrating member along a path into the tissue; a sensing device for use in controll
What is claimed is: 1. A tissue penetrating device for sampling body fluid from a patient and for use with a penetrating member, the device comprising: an electrical driver coupled to provide force that moves said penetrating member along a path into the tissue; a sensing device for use in controlling motion of the penetrating member to penetrate the skin of the patient to a desired depth of penetration that is sufficient to create a wound from which blood flows from the wound and into an interior of the tissue penetrating device for blood analysis without flowing through the penetrating member for blood analysis with reduced patient discomfort from the creation of the wound; a controller electrically coupled to the electrical driver and configured to receive a signal from the sensing device to control the electrical driver and a motion of the penetrating member; an electronic feedback loop circuit in electrical communication with the sensing device, the electrical driver and the sensing device configured to control a motion of the penetrating member; and wherein the electrical driver is used to stop the penetrating member in the tissue. 2. The device of claim 1 wherein the electronic feedback loop circuit in electrical communication with the sensing device and the controller inhibits penetrating member penetration once a penetration depth of the penetrating member has been sensed by the sensing device. 3. The device of claim 1 wherein the electrical driver includes a motor. 4. The device of claim 1 wherein the controller includes a microprocessor. 5. The device of claim 1 wherein the controller has logic for directing the electrical driver to provide force to drive the penetrating member into tissue and to provide force to withdraw the penetrating member from tissue. 6. The device of claim 1 wherein the penetrating member comprises a non-hollow, elongate member. 7. The device of claim 1 wherein the controller has logic for directing the electrical driver to provide force to drive the penetrating member into tissue and to provide force to withdraw the penetrating member from tissue. 8. A method of lancing the tissue of a patient using a tissue penetrating device, comprising: providing a penetrating member device comprising, an electrical driver coupled to provide force to a penetrating member; activating the electrical driver; driving the penetrating member into the tissue of a patient, wherein the electrical driver provides force to move said penetrating member into the tissue; using a controller electrically coupled to the electrical driver to control a motion of the penetrating member; sensing the depth of penetration of the penetrating member after the penetrating member has been driven into the patient's tissue with the sensing device and controlling the activation of the electrical driver with the controller based on the depth of penetration of the penetrating member; using the electrical driver to stop the penetrating member in the tissue, and using the electrical driver to withdraw the penetrating member from the tissue. 9. The method of claim 8 further comprising: obtaining the body fluid sample, wherein the sample is obtained only by removing the penetrating member from the tissue. 10. The method of claim 8 wherein the penetrating member comprises a non-hollow, elongate member. 11. A method of sampling blood from a patient, the method comprising: providing a tissue penetrating device that includes, an electrical driver coupled to a penetrating member, the electrical driver for providing drive force, a controller electrically coupled to the electrical driver, and an electronic feedback loop circuit in electrical communication with a sensing device, the electrical driver and the sensing device configured to control a motion of the penetrating member, wherein motion of the penetrating member results in motion of at least one component of the sensing device relative to a housing; activating the electrical driver; driving the penetrating member through the skin surface of a patient into the patient's tissue; sensing a depth of penetration of the penetrating member after the penetrating member has been driven into the patient's tissue; and controlling activation of the electrical driver in response to a depth of penetration of the penetrating member determined with the sensing device member to penetrate the skin of the patient to a desired depth of penetration that is sufficient to create a wound patient's tissue; sensing a depth of penetration of the penetrating member after the penetrating member has been driven into the patient's tissue; and controlling activation of the electrical driver in response to a depth of penetration of the penetrating member determined with the sensing device member to penetrate the skin of the patient to a desired depth of penetration that is sufficient to create a wound from which blood flows from the wound without flowing through the penetrating member and into an interior of the tissue penetrating device for blood analysis with reduced patient discomfort from the creation of the wound; wherein the electrical drive is used to stop the penetrating member in the tissue. 12. The method of claim 11 further comprising: obtaining the body fluid sample, wherein the sample is obtained only by removing the penetrating member from the tissue. 13. The method of claim 11 wherein the penetrating member comprises a non-hollow, elongate member. 14. The method of claim 1 further comprising using the electrical driver to stop the penetrating member in the tissue. 15. The method of claim 11 further comprising using the electrical driver to withdraw the penetrating member from the tissue.
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