214 results about "Cabg surgery" patented technology

Surgical accessories are presented in vivo and used by surgical tools in the surgical site to perform additional tasks without the need to remove the tools from the surgical site for tool change or instrument loading. Examples of in vivo accessories include fastening accessories such as surgical clips for use with a clip applier, single working member accessories such as a blade which can be grasped and manipulated by a grasping tool for cutting, sheath accessories that fit over working members of a tool, flow tubes for providing suction or introducing a fluid into the surgical site, and a retraction member resiliently biased to retract a tissue to expose an area in the surgical site for treatment. The accessories can be introduced into the surgical site by a dedicated accessory introducer, or can be supported on the body of a surgical tool inserted into the surgical site and be manipulated using another surgical tool in the surgical site. The accessory introducer can be resiliently biased to bias the accessories toward a predetermined position in the surgical site.

Surgical methods and instruments are disclosed for performing port-access or closed-chest coronary artery bypass (CABG) surgery in multivessel coronary artery disease. In contrast to standard open-chest CABG surgery, which requires a median sternotomy or other gross thoracotomy to expose the patient's heart, post-access CABG surgery is performed through small incisions or access ports made through the intercostal spaces between the patient's ribs, resulting in greatly reduced pain and morbidity to the patient. In situ arterial bypass grafts, such as the internal mammary arteries and/or the right gastroepiploic artery, are prepared for grafting by thoracoscopic or laparoscopic takedown techniques. Free grafts, such as a saphenous vein graft or a free arterial graft, can be used to augment the in situ arterial grafts. The graft vessels are anastomosed to the coronary arteries under direct visualization through a cardioscopic microscope inserted through an intercostal access port. Retraction instruments are provided to manipulate the heart within the closed chest of the patient to expose each of the coronary arteries for visualization and anastomosis. Disclosed are a tunneler and an articulated tunneling grasper for rerouting the graft vessels, and a finger-like retractor, a suction cup retractor, a snare retractor and a loop retractor for manipulating the heart. Also disclosed is a port-access topical cooling device for improving myocardial protection during the port-access CABG procedure. An alternate surgical approach using an anterior mediastinotomy is also described.

A support arm assembly for assisting in the performance of cardiac surgery has an articulated arm movable axially of a support base and rotatable relative to the support base. A distal end of the articulated arm receives a contact member and the contact member is moveable relative to the distal end. A surgeon may configure the support arm assembly to contact a desired portion of a heart and fix the articulated arm, its axial position, its rotated position and the orientation of the contact member with a single control.

A surgical device is provided, the device having a tubular outer body member with a handle at its proximal end and a flexible distal end segment extending from its distal end. The surgical device also has an operable end extending from the distal end of the flexible distal end segment. The device is configured for selectively causing the flexible end segment to bend to adopt a desired curvature and for selectively rotating the operable end relative to the flexible distal end segment about an axis of the flexible distal end segment.

A surgical instrument is provided that includes a first input mechanism having axial slots formed in a periphery and a second input mechanism having helical slots formed in a surface. The instrument also includes an insert having pins extending from a surface thereof, the insert coupled to the second input mechanism such that the one or more pins extend into the helical slots, and a surgical device coupled to an end. The surgical device is moved in a first degree of freedom in response to a mechanical driving force applied to both the first input mechanism and the second input mechanism, respectively, and the surgical device is moved in a second degree of freedom in response to a mechanical driving force applied to the second input mechanism while the first input mechanism is held stationary.

A compressor tool for use in minimally invasive surgery is provided having first and second elongate elements where each elongate element is connected to the other at a pivot point within a pivot region of each element for rotating articulation in an articulation plane with respect to each other. The first and second elongate elements are configured to provide a tool pivot region including the pivot point, a tool handle proximal to the tool pivot region, and a tool working portion distal to the too pivot region so that pressure applied to the tool handle portion results in a compressive force being applied by the tool working portion. The tool has a first closed position for insertion of the tool through an incision or portal so that the pivot region is located within the incision or portal, and a second working position where the tool working portion is arranged to provide a compressive force to spaced apart elements within a patient's body. Articulation of the tool between the first closed position and the second working position results in no increase in dimension of the tool in the pivot region.

A system for performing an end-to-side vascular anastomosis including an anastomosis device, an application instrument and methods for performing a vascular anastomosis. The system is applicable for performing an anastomosis between a vascular graft and the ascending aorta in coronary artery bypass surgery, particularly in port-access CABG surgery. A first aspect of the invention includes a vascular anastomosis staple. A first configuration has two parts: an anchor member, forming the attachment with the target vessel wall and a coupling member, forming the attachment with the bypass graft vessel. The anastomosis is completed by inserting the coupling member, with the graft vessel attached, into the anchor member. A second configuration combines the functions of the anchor member and the coupling member into a one-piece anastomosis staple. A second aspect of the invention includes an anastomotic fitting, having an inner flange over which the graft vessel is everted and an outer flange which contacts the exterior surface of the target vessel. A tailored amount of compression applied by the inner and outer flanges grips the target vessel wall and creates a leak-proof seal between the graft vessel and the target vessel. A third aspect of the invention has a flange to which the graft vessel attaches, by everting the graft vessel over the flange, and a plurality of staple-like members which attach the flange and the everted end of the graft vessel to the wall of the target vessel to form the anastomosis

The present invention discloses a metamorphic tool hand for abdominal cavity minimal invasive surgery robot, which comprises the following components: a finger mechanism which is composed of a forefinger, a middle finger and a thumb; a palm mechanism; a metamorphic executing mechanism; a basal rod mechanism; a driving detecting mechanism and a special tool. The forefinger and the middle finger are hinged in the palm mechanism. The metamorphic executing mechanism is hinged between the palm mechanism and the basal rod mechanism. The palm mechanism and the thumb are respectively hinged with the basal rod mechanism. The basal rod mechanism is connected with the driving detecting mechanism through the soft wire provided in the metal flexible pipe. The basal rod mechanism is equipped in the robot body through screw bolts and move along with the robot body. The joint of the tool hand is driven by the soft wire in the metal flexible pipe. The middle finger and the thumb can be retreated into the basal rod. The forefinger is straight and is parallel with the basal rod. The whole body of the metamorphic tool hand can enter and come out from the scarfskin of the abdominal cavity. The metamorphic tool hand expands to the tool hand with different configuration after entering the abdominal cavity. The metamorphic tool hand not only can directly operate the organ and tissue of the abdominal cavity but also can grasp the tool for indirectly operation.

Apparatus for performing a minimally-invasive procedure, the apparatus comprising: a tool comprising: a shaft having a distal end and a proximal end; a handle attached to the proximal end of the shaft; and an end effector attached to the distal end of the shaft; wherein the shaft comprises a flexible portion extending distally from the proximal end of the shaft, and an articulating portion extending proximally from the distal end of the shaft, and wherein the articulating portion comprises a flexible spine; wherein a plurality of articulation cables extend through the shaft from the handle to the flexible spine, such that when tension is applied to at least one of the plurality of articulation cables, the flexible spine bends; wherein a rotatable element extends through the shaft from the handle to the end effector, such that when the rotatable element is rotated, the end effector rotates; and wherein an actuation element extends through the shaft from the handle to the end effector, such that when the actuation element is moved, the end effector is actuated.

Surgical methods and instruments are disclosed for performing port-access or closed-chest coronary artery bypass (CABG) surgery in multivessel coronary artery disease. In contrast to standard open-chest CABG surgery, which requires a median sternotomy or other gross thoracotomy to expose the patient's heart, port-access CABG surgery is performed through small incisions or access ports made through the intercostal spaces between the patient's ribs, resulting in greatly reduced pain and morbidity to the patient. In situ arterial bypass grafts, such as the internal mammary arteries and/or the right gastroepiploic artery, are prepared for grafting by thoracoscopic or laparoscopic takedown techniques. Free grafts, such as a saphenous vein graft or a free arterial graft, can be used to augment the in situ arterial grafts. The graft vessels are anastomosed to the coronary arteries under direct visualization through a cardioscopic microscope inserted through an intercostal access port. Retraction instruments are provided to manipulate the heart within the closed chest of the patient to expose each of the coronary arteries for visualization and anastomosis. Disclosed are a tunneler and an articulated tunneling grasper for rerouting the graft vessels, and a finger-like retractor, a suction cup retractor, a snare retractor and a loop retractor for manipulating the heart. Also disclosed is a port-access topical cooling device for improving myocardial protection during the port-access CABG procedure. An alternate surgical approach using an anterior mediastinotomy is also described.

The invention discloses a minimally invasive celiac surgery robot. The minimally invasive celiac surgery robot comprises a base, a surgery mechanical box and a driving system. The surgery mechanical box and the driving system are arranged above the base. The driving system comprises an X-direction translational driving device, a Y-direction translational driving device and a Z-direction elevatingdriving device. The X-direction translational driving device is used for driving the Z-direction elevating driving device, the Y-direction translational driving device and the surgery mechanical box to perform reciprocating linear motion along an X-axis direction. The Z-direction elevating driving device is used for driving the Y-direction translational driving device and the surgery mechanical box to perform reciprocating elevating motion along a Z-axis direction. The Y-direction translational driving device is used for driving the surgery mechanical box to perform reciprocating linear motionalong a Y-axis direction. With outstanding strengths in stability, safety and feasibility, the minimally invasive celiac surgery robot helps improve accuracy of surgery operation and surgery quality.

The invention relates to the field of medical science, and particularly relates to an anterior cruciate ligament stopping location and ligament tunnel location device combining with preoperative 3D planning information. The device comprises hardware such as a C-type arm X-ray machine, a gama correction calibration board, an image capturing card, a positioning robot, a path positioning rack, a position trailing platform, and a computer as well as software such as a 3D planning module and a 2D positioning and navigation module which are stored in the computer. The 3D planning module makes use of preoperative 3D image data of knee joints of a patient, assists a doctor in finishing personalized surgical planning, and projecting a 3D environmental message to a 2D navigation message along a specific projection direction. The 2D positioning and navigation module makes use of a 2D medical image in surgical space collected by the hardware as well as location information of various trailing objects and combines the 2D navigation message to construct a navigation environment to control the hardware such as the positioning robot and the path positioning rack to finish an accurate operation path positioning. The anterior cruciate ligament stopping location and ligament tunnel location device can assist the doctor in finishing the precise and personalized operation of anterior cruciate ligament stopping location and ligament tunnel location, thus lowering operative difficulties and enhancing operative treatment efficacy.

A Laparoscopic Visualization System comprising a sterile, self-contained, disposable apparatus used in medical procedures for heating and applying an anti-fog solution to the distal end of laparoscopes or surgical devices is presented. It additionally serves as an endoscopic lens protector and cleaner. An efficient heating and narrow range temperature control mechanism is used in combination with an anti-fog solution to provide clear visualization through a distal lens of the surgical device inserted into the system. The configuration prevents the anti-fog solution from spilling out of the system and is designed to also be used as a holder for the surgical scope, protecting the distal lens from impact with a shock absorbent outer shell, prior to, during, and after a medical procedure.

Device for supporting the abdominal wall away from organs positioned thereunder for freeing up a surgical space in minimally invasive surgery, having multiple tube-shaped hollow bodies, which are fillable via a hose line (6, 16), and which are connected to each other in circumferential direction to form a preferably conical toroidal shape. The elongated hollow bodies (2, 10) are each supported at their ends (4, 12) on a tube-shaped, thin-walled, foldable hollow body (8, 14), which forms a ring, and which can be filled via a hose line (6, 16), extending along the two edges of the toroidal shape. The diameters of the two annular hollow bodies (8, 14) may be the same, or different, thus forming a cylindrical or frustoconical wall (18) serving for support.