Abstract: Various embodiments of the present disclosure include an apparatus comprising a clip which includes a first side including a first ring configured to pass over an end of a first vessel, the first ring configured to engage the first side with the first vessel, and a second side coupled to the first side, the second side including a second ring configured to pass over an end of a second vessel, the second ring being configured to engage the second side with the second vessel. The first and second sides, when in a closed position, are configured to maintain the first and second vessels in substantially end-to-end contact.

Abstract: Various embodiments of the present disclosure include an apparatus comprising a clip which includes a first side including a first ring configured to pass over an end of a first vessel, the first ring configured to engage the first side with the first vessel, and a second side coupled to the first side, the second side including a second ring configured to pass over an end of a second vessel, the second ring being configured to engage the second side with the second vessel. The first and second sides, when in a closed position, are configured to maintain the first and second vessels in substantially end-to-end contact.

Abstract: Various embodiments of the present disclosure include an apparatus comprising a clip which includes a first side including a first ring configured to pass over an end of a first vessel, the first ring configured to engage the first side with the first vessel, and a second side coupled to the first side, the second side including a second ring configured to pass over an end of a second vessel, the second ring being configured to engage the second side with the second vessel. The first and second sides, when in a closed position, are configured to maintain the first and second vessels in substantially end-to-end contact.

Abstract: The invention relates to a laser catheter for bypass surgery. The laser catheter comprises: a tubular arrangement comprising a tubular bundle of optical fibres having distal ends defining an emitting surface for emitting laser radiation in the distal direction of the catheter; at the distal end of the catheter, a channel extending in axial direction of the catheter and defined by the inside of the tubular arrangement, which channel is connectable to a suction source; and a grid element arranged inside the channel at a distance proximally from the emitting surface, which grid extends in transverse direction of the catheter across the channel. The laser catheter further comprises a narrowing arranged inside the channel and, viewed in axial direction of the catheter, between the emitting surface and the grid.

Abstract: In some examples, a catheter apparatus, configured to cut through a vessel wall, includes an elongate body including a distal end. A cutting device, configured to selectively cut a hole in the vessel wall, is disposed at the distal end of the elongate body. The cutting device includes a substantially ring-shaped cutting portion including a first dimension and a second dimension, wherein the first dimension is greater than the second dimension. The gripping device, disposed at the distal end of the elongate body, is configured to grip the vessel wall to maintain the cutting device proximate the vessel wall during cutting of the hole in the vessel wall. The gripping device is further configured to retain a portion of the vessel wall removed during cutting of the vessel wall. In some examples, a method includes using a catheter apparatus to cut through a vessel wall.