Abstract: A method and system for authenticating user access to a resource is disclosed having the steps of receiving an access request from a user to access a resource, sending an authentication request to an authenticator, receiving an authentication response from the authenticator, providing access to the resource if the authentication response is validated by each authenticator; and denying access to the resource if the authentication response is not validated by the authenticator.

Abstract: A holding device for medical purposes having a carrier arm on whose distal end a medical instrument can be secured and having at least one joint for positioning the carrier arm and/or the medical instrument, where the joint can be converted between the position that releases the joint and the position that blocks the joint. The holding device provides simple operation, reliable positionability, and can be cleaned well. The joint comprises at least two joint members that enter into active connection with one another by mutually engaging catching elements, where the catching elements are positioned essentially perpendicular to the longitudinal direction of the carrier arm and are pre-tensed with respect to one another by a spring element, and that in the joint at least one hydraulically or pneumatically spreadable expansion element is positioned by which the joint can be converted into the position that releases the joint.

Abstract: A medical instrument for grasping an object, in particular a surgical needle holder, including an elongated shaft, two jaw parts arranged at a distal end of the shaft, at least one of the jaw parts being pivotable with respect to the other of the jaw parts between a grasp state for grasping the object between the jaw parts and a release state for releasing the object. A handle is arranged at a proximal end of the shaft and has at least one operating element for moving the at least one pivotable jaw part between the grasp state and the release state via an axially movable force transmission element operatively connected with the at least one operating element and with the at least one pivotable jaw part via an articulated joint. The instrument further includes a latching mechanism for immobilizing the at least one pivotable jaw part in the grasp state.

Abstract: The invention relates to a medical gripping and/or cutting instrument with an instrument shaft (1), with a handle (3) that can be fixed movably on the instrument shaft (1), and with a tool (2) mounted on the distal end of the instrument shaft (1) and consisting of two jaw member (2a, 2b), where at least one jaw member (2a or 2b) of the tool (2) can move in relation to the other jaw member (2b or 2a). In order to provide a medical instrument that, along with good cleaning properties and compact structure, also ensures simple and safe operation, the invention proposes that the handle (3) should include a coupling mechanism both to fix the handle (3) to the instrument shaft (1) and also to operate the at least one movable jaw member (2a or 2b) of the tool (2).

Abstract: A device for supporting at least one arm of an operating person during a surgical or medical operation comprises at least one supporting element for supporting the at least one arm of the operating person, the supporting element being arranged at a carrying structure for carrying the at least one supporting element. The carrying structure is configured such that the at least one supporting element can be lowered or raised for adjusting the height of the operating person's arm. The carrying structure comprises a control system which comprises a hydraulic circuit for lowering or raising the at least one supporting element.

Abstract: The invention relates to a device for creating a free transcutaneous access to an endoscopic operating area, in particular to a hollow internal body organ, which device has a conical inset that is to be inserted into an incision. A device for creating a transcutaneous access that combines simple construction with good handling qualities for several medical instruments is, according to the invention, characterized in that several medical instruments can be inserted simultaneously into the operating area by way of the conical inset, so that the individual medical instruments are positioned in the conical inset at a secured angle to one another.

Abstract: A device for supporting at least one arm of an operating person during a surgical or medical operation comprises at least one supporting element for supporting the at least one arm of the operating person, the supporting element being arranged at a carrying structure for carrying the at least one supporting element, wherein the carrying structure is configured such that the at least one supporting element can be lowered or raised for adjusting the height of the operating person's arm. The carrying structure comprises at least one carrying arm, which is pivotable about at least one at least approximately horizontal pivot axis such that pivoting of the carrying arm raises or lowers the at least one supporting element. The carrying structure further comprises a mechanical control system acting on the pivotability of the at least one carrying arm in the upward direction differently from the downward direction.

Abstract: A holding device for medical purposes having a carrier arm on whose distal end a medical instrument can be secured and having at least one joint for positioning the carrier arm and/or the medical instrument, where the joint can be converted between the position that releases the joint and the position that blocks the joint. The holding device provides simple operation, reliable positionability, and can be cleaned well. The joint comprises at least two joint members that enter into active connection with one another by mutually engaging catching elements, where the catching elements are positioned essentially perpendicular to the longitudinal direction of the carrier arm and are pre-tensed with respect to one another by a spring element, and that in the joint at least one hydraulically or pneumatically spreadable expansion element is positioned by which the joint can be converted into the position that releases the joint.

Abstract: A medical instrument for grasping an object, in particular a surgical needle holder, including an elongated shaft, two jaw parts arranged at a distal end of the shaft, at least one of the jaw parts being pivotable with respect to the other of the jaw parts between a grasp state for grasping the object between the jaw parts and a release state for releasing the object. A handle is arranged at a proximal end of the shaft and has at least one operating element for moving the at least one pivotable jaw part between the grasp state and the release state via an axially movable force transmission element operatively connected with the at least one operating element and with the at least one pivotable jaw part via an articulated joint. The instrument further includes a latching mechanism for immobilizing the at least one pivotable jaw part in the grasp state.

Abstract: The invention relates to a medical instrument for removing objects from narrow passages, having a shaft and an actuation element that is mounted in the shaft and on whose distal end a hook-shaped angled piece can be configured so that the distal end of the actuation element can be converted by a handle between an essentially extended form and a form that comprises the hook-shaped angled piece. It is proposed with the invention that the handle should be configured as consisting of at least two gripping members configured at an angle with respect to the longitudinal axis of the instrument, so that at least one gripping member can rotate with respect to the at least one other gripping member.

Abstract: The invention relates to a medical instrument for removing objects from narrow passages, which instrument has a shaft on whose distal end a hook-shaped curvature is configured. In order to produce a medical instrument that is easy to operate and ensures reliable removal of objects even in cramped space conditions, it is proposed with the invention that the distal end of the shaft can be converted between an essentially linear form and a form that has a hook-shaped curvature.

Abstract: A device for supporting at least one arm of an operating person during a surgical or medical operation comprises at least one supporting element for supporting the at least one arm of the operating person, the supporting element being arranged at a carrying structure for carrying the at least one supporting element. The carrying structure is configured such that the at least one supporting element can be lowered or raised for adjusting the height of the operating person's arm. The carrying structure comprises a control system which comprises a hydraulic circuit for lowering or raising the at least one supporting element.

Abstract: A device for supporting at least one arm of an operating person during a surgical or medical operation comprises at least one supporting element for supporting the at least one arm of the operating person, the supporting element being arranged at a carrying structure for carrying the at least one supporting element, wherein the carrying structure is configured such that the at least one supporting element can be lowered or raised for adjusting the height of the operating person's arm. The carrying structure comprises at least one carrying arm, which is pivotable about at least one at least approximately horizontal pivot axis such that pivoting of the carrying arm raises or lowers the at least one supporting element. The carrying structure further comprises a mechanical control system acting on the pivotability of the at least one carrying arm in the upward direction differently from the downward direction.

Abstract: The invention relates to a medical gripping and/or cutting instrument with an instrument shaft (1), with a handle (3) that can be fixed movably on the instrument shaft (1), and with a tool (2) mounted on the distal end of the instrument shaft (1) and consisting of two jaw member (2a, 2b), where at least one jaw member (2a or 2b) of the tool (2) can move in relation to the other jaw member (2b or 2a). In order to provide a medical instrument that, along with good cleaning properties and compact structure, also ensures simple and safe operation, the invention proposes that the handle (3) should include a coupling mechanism both to fix the handle (3) to the instrument shaft (1) and also to operate the at least one movable jaw member (2a or 2b) of the tool (2).

Abstract: A device for supporting at least one arm of an operating person during a surgical or medical operation comprises at least one supporting element for supporting the at least one arm of the operating person, the supporting element being arranged at a carrying structure for carrying the at least one supporting element. The carrying structure is configured such that the at least one supporting element can be lowered or raised for adjusting the height of the operating person's arm. The carrying structure comprises a control mechanism for lowering or raising the at least one supporting element, wherein the control mechanism includes a force load switch for activating the lowering or raising of the at least one supporting element, wherein the force load switch activates the lowering or raising of the at least one supporting element upon detecting compressive and/or tensile forces or motions acting via the at least one supporting element on the force load switch.

Abstract: A device for supporting at least one arm of an operating person during a surgical or medical operation comprises at least one supporting element for supporting the at least one arm of the operating person, the supporting element being arranged at a carrying structure for carrying the at least one supporting element. The carrying structure is configured such that the at least one supporting element can be lowered or raised for adjusting the height of the operating person's arm. The carrying structure comprises a control mechanism for lowering or raising the at least one supporting element, wherein the control mechanism includes a force load switch for activating the lowering or raising of the at least one supporting element, wherein the force load switch activates the lowering or raising of the at least one supporting element upon detecting compressive and/or tensile forces or motions acting via the at least one supporting element on the force load switch.