Device for performing anastomosis
OwnerKlaas Havenga, Ivo Kooijmaninventors
Life of this patent
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Abstract
A kit of parts is provided for forming a device for performing anastomosis a first gastro-intestinal tract. The kit of parts comprises an inner ring, comprising an outer surface generally facing away from the passage, and an outer ring, comprising an inner surface. When the inner ring and the outer ring are in an assembled state, the inner ring is at least partially positioned in the reception volume of the outer ring, at least part of the outer surface of the inner ring faces towards the inner surface of the outer ring, and the outer surface and the inner surface together define an annular space between them, wherein at least part of the annular space converges in the generally axial direction.
Claims22
A kit of parts for forming a device for performing anastomosis of a first gastro-intestinal tract section and a second gastro-intestinal tract section, the kit of parts comprising:
- an inner ring, defining a passage for faecal matter through the inner ring in a generally axial direction, and comprising an outer surface generally facing away from the passage;
- an outer ring, defining a reception volume for receiving at least part of the inner ring therein, the outer ring comprising an inner surface facing at least partially towards the reception volume;
- wherein the inner ring and the outer ring are arranged to, in an assembled state in which the inner ring is at least partially positioned in the reception volume of the outer ring, have at least part of the outer surface of the inner ring facing towards the inner surface of the outer ring, and to have the outer surface and the inner surface together define an annular space between them, wherein at least part of the annular space converges in the generally axial direction.
A method for performing anastomosis of a first gastro-intestinal tract section and a second gastro-intestinal tract section, the method comprising:
- positioning an inner ring in the first gastro-intestinal tract section and at least partially enclosing the inner ring in the first gastro-intestinal tract section;
- positioning an outer ring in the second gastro-intestinal tract section and at least partially enclosing the outer ring in the second gastro-intestinal tract section;
- and
- moving the inner ring in an axial direction into a reception volume of the outer ring;
- wherein during the moving of the inner ring into the reception volume of the outer ring, an annular space is formed between an outer surface of the inner ring and an inner surface of the outer ring, which annular space converges in the generally axial direction, such that part of the first gastro-intestinal tract section and part of the second gastro-intestinal tract section are compressed together in the annular space.
A placement device for placing a device for performing anastomosis of a first gastro-intestinal tract section and a second gastro-intestinal tract section comprising an inner ring and an outer ring, the placement device comprising:
- a housing;
- at a distal end of the housing, a translatable element arranged to be connected to the inner ring of the device for performing anastomosis, and which translatable element is arranged to be translated over a translation axis;
- and
- at a proximal end of the housing, an actuator arranged to be rotated around a rotation axis, which rotation axis is positioned at an angle relative to the translation axis, in particular perpendicular;
- wherein the placement device further comprises a coupling mechanism connecting the actuator to the translatable element, which coupling mechanism is arranged for converting a rotation of the actuator to a translation of the translatable element.
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Dependencies are inferred from the claim text.