An apparatus for harvesting a subcutaneous blood vessel is disclosed. The apparatus comprises a guidewire with an angled tip, an intra-vascular catheter to receive the guidewire and having a lateral orifice to allow the angled tip thereof to perforate the subcutaneous blood vessel. The apparatus further comprises a flexible pulling device having a pair of circumferential grooves, one adjacent to each end thereof, to allow for securing the subcutaneous blood vessel thereat; and a flexible pushing device having a concave-cup shape at a distal end thereof to facilitate pushing of the subcutaneous blood vessel secured with one of the pair of circumferential grooves of the flexible pulling device. The flexible pulling device and the flexible pushing device are operable in conjunction to cause inversion and eversion and separation from the surrounding tissues of the subcutaneous blood vessel for removal and harvesting thereof.

A dissecting device that includes a grasping section and a dissecting member. The grasping section has an insertion lumen that permits an imaging device to be positioned therein. The dissecting member is at the distal portion of the grasping section and is insertable into a living body and movable along a blood vessel to dissect tissue surrounding the blood vessel. The dissecting member includes a base part having a lumen that communicates with the insertion lumen and a dissecting section which extends distally from the base part. The dissecting section is configured to dissect the tissue in the living body when the dissecting member is moved along the blood vessel. The dissecting member includes a blood vessel guide passage that accepts a branch vessel branched from the blood vessel at the distal portion of the dissecting member and guides the branch vessel toward the base part.

Another surgical device is also disclosed. The surgical device includes a flexible distal tip, which may also include a distal opening, a shaft interface opening on a proximal end of the flexible distal tip, an intermediate opening located between the distal opening and the shaft interface opening, and a channel coupling the shaft interface opening and the intermediate opening. The device may also include a hollow shaft connected to the shaft interface opening, a handle coupled to the hollow shaft, a suture locking device slidable within the handle, and a sliding actuator coupled to the hollow shaft.

An apparatus for harvesting a subcutaneous blood vessel is disclosed. The apparatus comprises a guidewire with an angled tip, an intra-vascular catheter to receive the guidewire and having a lateral orifice to allow the angled tip thereof to perforate the subcutaneous blood vessel. The apparatus further comprises a flexible pulling device having a pair of circumferential grooves, one adjacent to each end thereof, to allow for securing the subcutaneous blood vessel thereat; and a flexible pushing device having a concave-cup shape at a distal end thereof to facilitate pushing of the subcutaneous blood vessel secured with one of the pair of circumferential grooves of the flexible pulling device. The flexible pulling device and the flexible pushing device are operable in conjunction to cause inversion and eversion and separation from the surrounding tissues of the subcutaneous blood vessel for removal and harvesting thereof.

A dissecting device that includes a grasping section and a dissecting member. The grasping section has an insertion lumen that permits an imaging device to be positioned therein. The dissecting member is at the distal portion of the grasping section and is insertable into a living body and movable along a blood vessel to dissect tissue surrounding the blood vessel. The dissecting member includes a base part having a lumen that communicates with the insertion lumen and a dissecting section which extends distally from the base part. The dissecting section is configured to dissect the tissue in the living body when the dissecting member is moved along the blood vessel. The dissecting member includes a blood vessel guide passage that accepts a branch vessel branched from the blood vessel at the distal portion of the dissecting member and guides the branch vessel toward the base part.

A vessel dissector for harvesting a target vessel has a tubular member carrying a blunt transparent tip with a terminus for blunt dissection of tissue and a base affixed to the tubular member. An active ring set has first and second ring segments mounted to distal ends of respective manipulator bars in the tubular member. The ring segments juxtapose to define a closed loop with an inner diameter larger than the outside diameter of the tip base. The ring segments are movable between a retracted position nested at the base and respective extended positions distally forward of the terminus. At least one of the ring segments is energizable to cut and cauterize a cylindrical pedicle including the target vessel. The ring segments independently extend longitudinally to provide a variable gap between the ring segments to capture, cut, and cauterize side branches to the target vessel between the ring segments.

A vessel dissector for harvesting a target vessel has a tubular member carrying a blunt transparent tip with a terminus for blunt dissection of tissue and a base affixed to the tubular member. An active ring set has first and second ring segments mounted to distal ends of respective manipulator bars in the tubular member. The ring segments juxtapose to define a closed loop with an inner diameter larger than the outside diameter of the tip base. The ring segments are movable between a retracted position nested at the base and respective extended positions distally forward of the terminus. At least one of the ring segments is energizable to cut and cauterize a cylindrical pedicle including the target vessel. The ring segments independently extend longitudinally to provide a variable gap between the ring segments to capture, cut, and cauterize side branches to the target vessel between the ring segments.