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公开(公告)号：JPH1080489A
公开(公告)日：1998-03-31
申请号：JP24329897
申请日：1997-08-05
Applicant: BECTON DICKINSON CO
Inventor： GRIFFITH RICHARD L , STROWE ROBERT J , NEWELL JONATHAN C , EDIC PETER M , MESSINA RALPH F , HOUGHTON FREDERICK C
Abstract: PROBLEM TO BE SOLVED: To make it possible to use the device under a condition under which a patient has an embedment type electronic device and to execute sterilization inexpensively and sufficiently with a small size by providing the device with an electric stimulus generator circuit sufficient for charges to induce selected currents between the distal ends of a conductive layer and a needle cannula and the currents to induce an end shrinkage reaction at the time of positioning the needle to the patient's tissues. SOLUTION: An anesthesist or nurse anesthesist inserts the obliquely cut distal front end 24 of the needle cannula 20 made of a stainless steel into the patient's target nerve. Then, the anesthesist operates the on/off switch of a stimulator 14 so as to generate specified current pulses of low electric energy. The correct function of an electric stereotaxic apparatus 10 is checked that a flashing LED 50 generates the pulses of light simultaneously with the respective pulses of the energy. The high charge pulses generate the observable muscular simple shrinkage in a superficial position after penetration of the skin with the conductive layer of gold and may be observed at nearly coincident intervals.
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公开(公告)号：JPH1080484A
公开(公告)日：1998-03-31
申请号：JP24329997
申请日：1997-08-05
Applicant: BECTON DICKINSON CO
Inventor： STROWE ROBERT J , NEWELL JONATHAN C , EDIC PETER M , MESSINA RALPH F
Abstract: PROBLEM TO BE SOLVED: To permit a system to be used by a patient having a buried-type electronic device, to be small and inexpensive, to be used singly and sterilization possible and to be used by only one engineer. SOLUTION: A needle assembly 12 is included and the needle assembly is provided with a conductive needle canula 20, a non-conductive tube 28 fixed to it and a conductive plating 36 on the tube. A conductor is connected to a stimulator 14 which generates a high charge pulse and a low charge pulse which are changed by a fixed current level. The high charge pulse causes remarkable muscle contraction immediately after a needle is inserted to the patient. The extent of muscle contraction which responds to the high charge pulse becomes a peak, muscle contraction which responds to the low charge pulse becomes observation possible as the needle approaches to a nerve to be a target and it becomes discrimination impossible from muscle contraction which responds to the high charge pulse when the needle is positioned for giving a narcotic.
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公开(公告)号：AU3316897A
公开(公告)日：1998-02-12
申请号：AU3316897
申请日：1997-08-05
Applicant: BECTON DICKINSON CO
Inventor： STROWE ROBERT J , NEWELL JONATHAN C , EDIC PETER M , MESSINA RALPH F
Abstract: An electrolocation apparatus is provided for locating a nerve to which anesthesia may be delivered. The apparatus includes a needle assembly having an electrically conductive needle cannula non-conductive tube secured over the needle cannula, and a conductive plating on the tube. The conductors are connected to a stimulator that generates alternating high and low charge pulses with a constant low current level. The high charge pulses generate noticeable muscle twitches immediately after insertion of the needle into the patient. Muscle twitches responsive to the high charge pulses will peak in magnitude, and muscle twitches responsive to the low charge pulses will become observable as the needle approaches the targeted nerve, and will be indistinguishable from the muscle twitches responsive to the high charge pulses when the needle is in a position for administration of anesthetic.
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公开(公告)号：CA2211752A1
公开(公告)日：1998-02-05
申请号：CA2211752
申请日：1997-07-30
Applicant: BECTON DICKINSON CO
Inventor： GRIFFITH RICHARD LEE , NEWELL JONATHAN C , MESSINA RALPH F , EDIC PETER M , HOUGHTON FREDERICK CHARLES , STROWE ROBERT J
Abstract: An electrolocation apparatus is provided for locating a nerve to which anesthesia may be delivered. The apparatus includes a needle assembly having an electrically conductive needle cannula non-conductive tube secured over the needle cannula, and a conductive plating on the tube. The conductors are connected to astimulator that generates alternating high and low charge pulses with a constant low current level. The high charge pulses generate noticeable muscle twitches immediately after insertion of the needle into the patient. Muscle twitches responsive to the high charge pulses will peak in magnitude, and muscle twitchesresponsive to the low charge pulses will become observable as the needle approaches the targeted nerve, and will be indistinguishable from the muscle twitches responsive to the high charge pulses when the needle is in a position for administration ofanesthetic.
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公开(公告)号：MX9705839A
公开(公告)日：1998-02-28
申请号：MX9705839
申请日：1997-07-31
Applicant: BECTON DICKINSON CO
Inventor： GRIFFITH RICHARD L , STROWE ROBERT J , NEWELL JONATHAN C , EDIC PETER M , MESSINA RALPH F , HOUGHTON FREDERICK C
Abstract: Se proporciona un aparato de electrolocalizacion para localizar un nervio al cual se puede suministrar anestesia. El aparato incluye un conjunto de aguja que tiene un tubo no conductor con cánula de aguja eléctricamente conductora asegurada a través de la cánula de aguja, y una galvanizacion conductora en el tubo. Los conductores se conectan con un estimulador que genera impulsos de carga alternativos elevados y bajos con un nivel de corriente bajo constante. Los impulsos de carga elevados generan sacudidas musculares perceptibles inmediatamente después de la insercion de la aguja en el paciente. Las sacudidas musculares que responden a los impulsos de carga elevada llegarán al máximo en magnitud y las sacudidas musculares que responden a los impulsos de carga bajos se convertirán en observables a medida que la aguja se aproxima al nervio de referencia y no podrán distinguirse de las sacudidas musculares que responden a los impulsos de carga elevados cuando la aguja está en una posicion para la administracion del anestésico.
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Patent Agency Ranking
公开(公告)号：BR9704266A
公开(公告)日：1998-11-03
申请号：BR9704266
申请日：1997-08-05
Applicant: BECTON DICKINSON CO
Inventor： STROWE ROBERT J , NEWELL JONATHAN C , MESSINA RALPH F , EDIC PETER M
Abstract: An electrolocation apparatus is provided for locating a nerve to which anesthesia may be delivered. The apparatus includes a needle assembly having an electrically conductive needle cannula non-conductive tube secured over the needle cannula, and a conductive plating on the tube. The conductors are connected to a stimulator that generates alternating high and low charge pulses with a constant low current level. The high charge pulses generate noticeable muscle twitches immediately after insertion of the needle into the patient. Muscle twitches responsive to the high charge pulses will peak in magnitude, and muscle twitches responsive to the low charge pulses will become observable as the needle approaches the targeted nerve, and will be indistinguishable from the muscle twitches responsive to the high charge pulses when the needle is in a position for administration of anesthetic.
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公开(公告)号：CA2212498A1
公开(公告)日：1998-02-05
申请号：CA2212498
申请日：1997-08-01
Applicant: BECTON DICKINSON CO
Inventor： NEWELL JONATHAN C , MESSINA RALPH F , STROWE ROBERT J , EDIC PETER M
Abstract: An electrolocation apparatus is provided for locating a nerve to which anesthesia may be delivered. The apparatus includes a needle assembly having an electrically conductive needle cannula non-conductive tube secured over the needle cannula, and a conductive plating on the tube. The conductors are connected to astimulator that generates alternating high and low charge pulses with a constant low current level. The high charge pulses generate noticeable muscle twitches immediately after insertion of the needle into the patient. Muscle twitches responsive to the high charge pulses will peak in magnitude, and muscle twitchesresponsive to the low charge pulses will become observable as the needle approaches the targeted nerve, and will be indistinguishable from the muscle twitches responsive to the high charge pulses when the needle is in a position for administration ofanesthetic.
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公开(公告)号：AU719246B2
公开(公告)日：2000-05-04
申请号：AU3316997
申请日：1997-08-05
Applicant: BECTON DICKINSON CO
Inventor： GRIFFITH RICHARD L , STROWE ROBERT J , NEWELL JONATHAN C , EDIC PETER M , MESSINA RALPH F , HOUGHTON FREDERICK C
Abstract: An electrolocation apparatus is provided for locating a nerve to which anesthesia may be delivered. The apparatus includes a needle assembly having an electrically conductive needle cannula non-conductive tube secured over the needle cannula, and a conductive plating on the tube. The conductors are connected to a stimulator that generates alternating high and low charge pulses with a constant low current level. The high charge pulses generate noticeable muscle twitches immediately after insertion of the needle into .the patient. Muscle twitches responsive to the high charge pulses will peak in magnitude, and muscle twitches responsive to the low charge pulses will become observable as the needle approaches the targeted nerve, and will be indistinguishable from the muscle twitches responsive to the high charge pulses when the needle is in a position for administration of anesthetic.
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公开(公告)号：SG50873A1
公开(公告)日：1998-07-20
申请号：SG1997002785
申请日：1997-08-05
Applicant: BECTON DICKINSON CO
Inventor： GRIFFITH RICHARD L , NEWELL JONATHAN C , STROWE ROBERT J , EDIC PETER M
Abstract: An electrolocation apparatus is provided for locating a nerve to which anesthesia may be delivered. The apparatus includes a needle assembly having an electrically conductive needle cannula non-conductive tube secured over the needle cannula, and a conductive plating on the tube. The conductors are connected to a stimulator that generates alternating high and low charge pulses with a constant low current level. The high charge pulses generate noticeable muscle twitches immediately after insertion of the needle into .the patient. Muscle twitches responsive to the high charge pulses will peak in magnitude, and muscle twitches responsive to the low charge pulses will become observable as the needle approaches the targeted nerve, and will be indistinguishable from the muscle twitches responsive to the high charge pulses when the needle is in a position for administration of anesthetic.
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公开(公告)号：BR9704267A
公开(公告)日：1998-10-06
申请号：BR9704267
申请日：1997-08-05
Applicant: BECTON DICKINSON CO
Inventor： GRIFFITH RICHARD L , HOUGHTON FREDERICK C , STROWE ROBERT J , NEWELL JONATHAN C , EDIC PETER M , MESSINA RALPH F
Abstract: An electrolocation apparatus is provided for locating a nerve to which anesthesia may be delivered. The apparatus includes a needle assembly having an electrically conductive needle cannula non-conductive tube secured over the needle cannula, and a conductive plating on the tube. The conductors are connected to a stimulator that generates alternating high and low charge pulses with a constant low current level. The high charge pulses generate noticeable muscle twitches immediately after insertion of the needle into .the patient. Muscle twitches responsive to the high charge pulses will peak in magnitude, and muscle twitches responsive to the low charge pulses will become observable as the needle approaches the targeted nerve, and will be indistinguishable from the muscle twitches responsive to the high charge pulses when the needle is in a position for administration of anesthetic.
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