Abstract: The invention relates to a medical access system for providing an access to a hollow body of a patient, wherein the access system has at least one catheter with a vasiform catheter tube, wherein the catheter is designed to be pushed over at least a part of the length of the catheter tube through an opening created by means of a puncture needle or in another way through a tunic of the hollow body after puncture of the tunic of the hollow body to be punctured has been carried out, and to remain there over a period of time. Such a hollow body of a patient may for example be a pipe-shaped vessel, in particular a blood vessel, for example a vein or artery, or a lymphatic vessel, or another hollow organ.

Abstract: The invention relates to an indwelling cannula (1) for puncturing a hollow body by means of a puncture needle, wherein the indwelling cannula (1) has a catheter (2) with a vasiform catheter tube (22), in which the puncture needle can be guided longitudinally displaceably. The indwelling cannula (1) has a manually actuable forward feed mechanism (5) by which a relative movement can be generated between the catheter tube (22) and the puncture needle as a result of manual actuation, by which a puncture tip (31), protruding from the catheter tube (22) at the near-patient end, of the puncture needle can be received in the catheter tube (22). Preferably, at least one operating element of the forward feed mechanism (5) is configured as a pivotably mounted lever (53) with at least one lever arm.

Abstract: The invention relates to a fixing device for fixing a medical, cosmetic, decorative or other article to the skin of a living being, the fixing device comprising the following features: a) a first retaining element having a first piercing point, which is designed to pierce the skin, b) a second retaining element having a second piercing point, which is designed to pierce the skin, the second piercing point being arranged at a distance from the first piercing point, c) a bridge, to which the first and the second retaining element are fastened, d) a fixing portion, which is connected to the bridge or is part of the bridge, the fixing portion being designed to fix the article that is to be fixed.

Abstract: The invention relates to a puncturing system comprising an outer tubular body which is designed to remain in a body part of a living being, characterized in that the puncturing system has at least one inner tubular body and a puncturing needle, wherein the inner tubular body is guided through a working lumen of the outer tubular body and can be longitudinally displaced with respect to the outer tubular body, and the puncturing needle is guided through a puncture lumen of the inner tubular body and the inner tubular body can be longitudinally displaced with respect to the puncturing needle, wherein, after a body part has been punctured by means of a puncturing section of the puncturing needle, which protrudes out of a patient-side end of the puncturing system, the inner tubular body can be moved out of the patient-side end of the catheter at least partially out of the outer tubular body, and is thereby designed to accommodate the puncturing section of the puncturing needle, which protrudes out of the patient-s

Abstract: The invention relates to a puncture system having an outer tubular body which is designed to remain in a body part of a living being, said puncture system comprising at least one inner tubular body and a puncture needle, wherein the inner tubular body is guided through a working lumen of the outer tubular body and is longitudinally displaceable relative to the outer tubular body, and the puncture needle is guided through a puncture lumen of the inner tubular body and the inner tubular body is longitudinally displaceable relative to the puncture needle. The puncture system has a manually actuatable element that can be moved by manual actuation at least into a fixing position and into a release position, wherein, in the fixing position, the longitudinal displaceability a1) of the inner tubular body relative to the outer tubular body and/or a2) of the puncture needle relative to the inner tubular body and/or a3) of the puncture needle relative to the outer tubular body is removed or reduced.

Abstract: The invention relates to a securing device (1) designed for securing a medical, cosmetic, decorative or other type of item to the skin of a living being, wherein the securing device (1) has at least one main puncturing element (2) with a puncturing tip (3), wherein the main puncturing element (2) is designed for penetrating into the skin of the living being, and the securing device (1) has at least one securing section (6, 16) coupled to the main puncturing element (2) and for securing the item to be secured on the securing device (1), wherein the the securing device (1) is designed for securing the main puncturing element (2) in the skin by means of a rotational movement of the securing device (1), whose axis of rotation runs orthogonal to the surface of the skin.

Abstract: The invention relates to an indwelling venous cannula (1) for application to a living being, having a venous catheter (2), wherein a puncture needle (3) can be guided in a longitudinally movable manner in the venous catheter (2). The puncture needle (3) is designed as a hollow needle over a portion of its length, wherein at least part of an additional portion of the length of the puncture needle (3) is solid.

Abstract: The invention relates to a puncture system having an outer tubular body which is designed to remain in a body part of a living being, said puncture system comprising at least one inner tubular body and a puncture needle, wherein the inner tubular body is guided through a working lumen of the outer tubular body and is longitudinally displaceable relative to the outer tubular body, and the puncture needle is guided through a puncture lumen of the inner tubular body and the inner tubular body is longitudinally displaceable relative to the puncture needle. The puncture system has a manually actuatable element that can be moved by manual actuation at least into a fixing position and into a release position, wherein, in the fixing position, the longitudinal displaceability a1) of the inner tubular body relative to the outer tubular body and/or a2) of the puncture needle relative to the inner tubular body and/or a3) of the puncture needle relative to the outer tubular body is removed or reduced.

Abstract: The invention relates to a fixing device for fixing a medical, cosmetic, decorative or other article to the skin of a living being, the fixing device comprising the following features: a) a first retaining element having a first piercing point, which is designed to pierce the skin, b) a second retaining element having a second piercing point, which is designed to pierce the skin, the second piercing point being arranged at a distance from the first piercing point, c) a bridge, to which the first and the second retaining element are fastened, d) a fixing portion, which is connected to the bridge or is part of the bridge, the fixing portion being designed to fix the article that is to be fixed.

Abstract: The invention relates to an indwelling venous cannula for application to a living being, comprising a venous catheter (2), wherein a puncture needle (3) can be guided in a longitudinally displaceable manner in the venous catheter (2), wherein at least the part of the venous catheter (2), which is designed to remain in the living being, is formed from a puncture-resistant material or is coated with such a puncture-resistant material over its entire length or most of its length, in which the puncture needle (3) can be guided in a longitudinally displaceable manner.

Abstract: The invention relates to a puncturing system comprising an outer tubular body which is designed to remain in a body part of a living being, characterized in that the puncturing system has at least one inner tubular body and a puncturing needle, wherein the inner tubular body is guided through a working lumen of the outer tubular body and can be longitudinally displaced with respect to the outer tubular body, and the puncturing needle is guided through a puncture lumen of the inner tubular body and the inner tubular body can be longitudinally displaced with respect to the puncturing needle, wherein, after a body part has been punctured by means of a puncturing section of the puncturing needle, which protrudes out of a patient-side end of the puncturing system, the inner tubular body can be moved out of the patient-side end of the catheter at least partially out of the outer tubular body, and is thereby designed to accommodate the puncturing section of the puncturing needle, which protrudes out of the patient-s

Abstract: The invention relates to a puncturing system comprising an outer tubular body which is designed to remain in a body part of a living being, characterized in that the puncturing system has at least one inner tubular body and a puncturing needle, wherein the inner tubular body is guided through a working lumen of the outer tubular body and can be longitudinally displaced with respect to the outer tubular body, and the puncturing needle is guided through a puncture lumen of the inner tubular body and the inner tubular body can be longitudinally displaced with respect to the puncturing needle, wherein, after a body part has been punctured by means of a puncturing section of the puncturing needle, which protrudes out of a patient-side end of the puncturing system, the inner tubular body can be moved out of the patient-side end of the catheter at least partially out of the outer tubular body, and is thereby designed to accommodate the puncturing section of the puncturing needle, which protrudes out of the patient-s

Abstract: The invention relates to a puncturing system comprising an outer tubular body which is designed to remain in a body part of a living being, characterized in that the puncturing system has at least one inner tubular body and a puncturing needle, wherein the inner tubular body is guided through a working lumen of the outer tubular body and can be longitudinally displaced with respect to the outer tubular body, and the puncturing needle is guided through a puncture lumen of the inner tubular body and the inner tubular body can be longitudinally displaced with respect to the puncturing needle, wherein, after a body part has been punctured by means of a puncturing section of the puncturing needle, which protrudes out of a patient-side end of the puncturing system, the inner tubular body can be moved out of the patient-side end of the catheter at least partially out of the outer tubular body, and is thereby designed to accommodate the puncturing section of the puncturing needle, which protrudes out of the patient-s