Device for Following the Penetration of an Instrument in an Anatomical Structure
A device to monitor penetration of an instrument into an anatomical structure including a voltage source supplying at least two electrodes, at least one of the electrodes carried by a part of the penetration instrument intended to penetrate the anatomical structure, the penetrating part having at least one detachable longitudinal part; and a device that measures the impedance between the electrodes or an electro-stimulator or both.
1 - 10 . (canceled)
11 . A device to monitor penetration of an instrument into an anatomical structure comprising:
a voltage source supplying at least two electrodes, at least one of the electrodes being carried by a part of the penetration instrument that penetrates the anatomical structure, the penetrating part having at least one detachable longitudinal part; and
a means to measure the impedance between the electrodes or an electro-stimulator or both.
12 . The device according to claim 11 , wherein the penetrating part further comprises an operator channel comprising the detachable longitudinal part.
13 . The device according to claim 12 , wherein the operator channel comprises a detachable electrode.
14 . The device according to claim 12 , wherein the device further comprises a flexible or rigid guide pin, crossing the operator channel.
15 . The device according to claim 12 , further comprising a fluid injection tube crossing the operator channel.
16 . The device according to claim 11 , wherein the detachable longitudinal part is centrally positioned.
17 . The device according to claim 11 , wherein the detachable longitudinal part forms a lateral periphery of the penetrating part so that, when the longitudinal part is withdrawn, the penetrating part has a guide core.
18 . The device according to claim 17 , wherein the guide core comprises an electrode.
19 . The device according to claim 17 , wherein the guide core is centrally positioned.
20 . The device according to claim 11 , wherein the detachable longitudinal part is an electrode.
21 . A device to monitor penetration of an instrument into an anatomical structure comprising:
a voltage source supplying at least two electrodes, at least one of the electrodes carried by a part of the penetration instrument intended to penetrate the anatomical structure, the penetrating part having at least one detachable longitudinal part; and
a device that measures the impedance between the electrodes or an electro-stimulator or both.