Guiding member for surgical instruments, surgical instruments, coupling and uses thereof
OwnerGeorges Bogaerts, Andre Faureinventors
Life of this patent
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Abstract
The present invention is related to a guiding member for guiding surgical instruments to a target volume inside a patient. The present invention also concerns surgical instruments specifically adapted for cardiac or hepatic surgery as well as a surgical assembly coupling said guiding member and said surgical instruments.
Claims24
1-38. (canceled)
Surgical instrument (51) adapted to cardiac surgery, and in particular to atrial defibrillation comprising insertion means for insertion inside the heart chamber (100), and cutting means (50) connected at a connection zone (540) to said insertion means, for creating lesions inside the heart chamber (100), said instrument (51) being such that both its translation and rotation movements are controlled by a robotic system (300) preferably coupled to a 3D-imaging system (400),
- wherein the insertion means correspond to a rigid elongated stem (52) delimited by an outer wall (521), with a main axis (A), and having a proximal end (523) and a distal end (522), said proximal end (523) being connected to the robotic system (300), while the distal end (522) is free;
- and wherein the cutting means comprise a flexible spreadable support structure (510) with an inner surface (511) and an outer surface (512), and an electrode mesh or network (500,500′,500″, . . . ) arranged on the outer surface (512) of said support structure (510).
Method for performing an atrial defibrillation using the instrument (51) according to claim 47, comprising the following steps:
- making a small incision in the thoracic wall (80) of the patient so as to introduce guiding means (1) inside the patient's cavity until the outer surface of the heart chamber, whereon said guiding means (1) are placed;
- stabilising said guiding means (1) by attaching them to an immobile surface such as a surgical table (7);
- under the control of the robotic system (300), passing the instrument (51) through said guiding means (1) by its distal end, with the dome structure (510) in rest configuration, until said instrument reaches the heart chamber and penetrates inside the heart chamber;
- positioning the instrument (51) inside the heart chamber relatively to the atrial wall and following a predefined sequence of translation and rotation movements of the stem (52) and of the dome structure (510) corresponding to a sequence of working configurations for the dome structure (510);
- coupling said sequence with a predefined activation sequence wherein different electrodes (500,500′,500″, . . . ) of the electrode network are selectively activated, so as to create selective lesions at precise locations in the atrial wall, said lesions being able to stop the electrical impulses associated to atrial fibrillation.
Surgical instrument (81) adapted for hepatic surgery and comprising insertion means for insertion inside a target organ, and heating means for coagulating specific tissue regions inside said target organ, said heating means being connected to said insertion means, said instrument (81) being capable of translation and rotation movements controlled by a robotic system preferably coupled to a 3D-imaging system and being adapted for intra-hepatic surgery.
The instrument according to claim 50, comprising two primary monopolar electrodes (85,85′) which are at least part of the secondary rod (83) and are activable selectively by the controlling means, preferably by radiofrequency.
Dependencies are inferred from the claim text.