40 results about "End to side anastomosis" patented technology

Distal anastomosis devices and associated methodology are described herein. Connector and connector components as well as tools associated therewith are disclosed. The connectors are preferably adapted to produce an end-to-side anastomosis at a graft / coronary artery junction. A fitting alone, or a fitting in combination with a collar may be used as a connector. Each fitting may be deployed by deflecting its shape to provide clearance for a rear segment that rotates about adjoining hinge section(s) so to fit the connector within an aperture formed in a host vessel. Upon return to a substantially relaxed position, a rear segment anchors the fitting it in place. The distal fitting may include additional side features for interfacing with the host vessel / coronary artery. The collar may include features complimentary to those of a fitting and provisions for securing the graft vessel.

Disclosed is an anastomosis catheter, for achieving a tissue to tissue or synthetic graft to tissue attachment. The catheter includes a plurality of deployable tissue anchors, which may be laterally deployed into surrounding tissue. The anchors may be used to achieve end to end or end to side anastomoses. Methods are also disclosed.

Devices, methods, and kits are provided for suturing an end of a first body duct to a hole in the side of a second body duct. The present devices and methods are used to simplify the suturing procedure and thus reduce operating time. In one embodiment, the present device includes a structure for holding the end of the first body duct and positioning the end adjacent to the hole in the side of the second body duct. The structure of the device is typically a shaft having a surface adapted to receive the first body duct. A plurality of needles are arranged on the structure to be advanced along a plurality of paths. Each needle path first passes radially into and forwardly out of the end of the first body duct and into the hole of the second body duct. The path then everts so that the needles and associated sutures will pass outwardly through tissue peripheral to the hole when the end of the first body duct is on the structure adjacent to the hole in the second body duct. The needles preferably travel along such paths when they are advanced forward. In one embodiment, the device uses a J-shaped tube for guiding one of the needles along the desired path. In another embodiment, shape-memory needles having an arcuate profile are used to create the desired path.

Apparatus and methods are provided for forming a working space on the interior wall of a blood vessel, such as the aorta. The working space is isolated from blood flow and permits creation of an anastomotic hole and subsequent suturing of the hole to form an end-to-side anastomosis, even while the heart is beating. The apparatus comprises tools including inflatable barriers, such as cup-shaped balloons, which engage the inner wall of the blood vessel with minimum trauma and maximum sealing. In a first embodiment, the inflatable barrier is introduced through a penetration at the site of the anastomotic attachment. In a second embodiment, the inflatable barrier is introduced through a second penetration axially spaced-apart from the site of the anastomotic attachment.

An implantable textile prosthesis includes a first woven section having a tubular branch wall defining a fluid passageway therethrough. The tubular branch wall includes an elongate tubular extent and an asymptotically flared tubular extent, which is asymptotic with respect to the tubular branch wall. The asymptotically flared tubular extent includes a weaving pattern having a plurality of warp yarns and fill yarns and incorporating a gradual change in the number of warp yarns with respect to the fill yarns to provide a seamless and substantially fluid-tight transition region along said flared tubular extent. The tubular branch wall may be sutured to an elongate tubular main wall to provide an implantable tubular textile prosthesis particularly useful in branched end-to-side anastomoses. The tubular main wall may be heat-settably arched to resemble the natural arch of the aorta.

A device for end-to-side anastomosis of body ducts comprising a coupling (2) which can be positioned on a side wall (3a) of a first duct (3) and connectable to a second duct (4) in order to create a fluid communication between the first (3) and second duct (4), and means of restraint (5) to firmly and preferably removably attach the coupling (2) to said first duct (3). The device (1) also comprises at least one membrane (6) removably positioned between the coupling (2) and side wall (3a) of the first duct (3) to prevent or allow the fluid communication between the first (3) and the second duct (4).

Apparatus and methods are provided for forming a working space on the interior wall of a blood vessel, such as the aorta. The working space is isolated from blood flow and permits creation of an anastomotic hole and subsequent suturing of the hole to form an end-to-side anastomosis, even while the heart is beating. The apparatus comprises tools including inflatable barriers, such as cup-shaped balloons, which engage the inner wall of the blood vessel with minimum trauma and maximum sealing. In a first embodiment, the inflatable barrier is introduced through a penetration at the site of the anastomotic attachment. In a second embodiment, the inflatable barrier is introduced through a second penetration axially spaced-apart from the site of the anastomotic attachment.

The method of end-to-side anastomosis of blood vessels by connecting a side portion of a first blood vessel to an end portion of a second blood vessel, comprises the steps of holding a first site on the side portion of the first blood vessel located in the vicinity of an peripheral portion of an opening formed on the side portion of the first blood vessel using a holder, and partially elevating the side portion of the first blood vessel; superimposing a second site on the side portion of the first blood vessel that is more distant from the peripheral portion of the opening formed on the side portion of the blood vessel than the first site is and the end of the second blood vessel and fixing them with a ring-shaped fixing member to each other; and detaching the holder from the first blood vessel when they are fixed by the fixing member or after they are fixed. The end-to-side blood vessel anastomosis method can readily open the dissected portion on the side of the blood vessel upon end-to-side blood vessel anastomosis and retain it in that state. In addition, no foreign matter is present within the blood vessel after completion of the anastomosis.

An elongate device (19), arcuate in cross-section, for placement around a vessel (4), comprises an essentially non-porous outer layer and a biodegradable inner layer. An alternative device comprises a tubular portion (3) for placement around a graft and a portion (2), arcuate in cross-section that can straddle a native vessel, at the site of an end-to-side anastomosis.

A surgical connection apparatus including a plurality of delivery assemblies, a housing assembly, and a drive mechanism. The delivery assemblies each include an outer member, an inner member, and optionally a retention member. The inner member is disposed within the outer member, terminates at a distal tip and forms an internal passage that is open at a window. The delivery assemblies releasably retain a self-closing clip. The housing assembly maintains the delivery assemblies in a generally circular arrangement. The drive mechanism operates to transition the delivery assembly in releasing a self-closing clip from the corresponding delivery assembly. With this construction, a plurality of self-closing clips can be simultaneously deployed in a manner effectuating, for example, an end-to-side anastomosis.

Disclosed herein are embodiments of devices and methods for forming a seal covering an incision in tissue. In some embodiments, a deformable member can be loaded into a catheter and inserted into the tissue incision. The deformable member can unfold into a cup-shape which can form a seal around the incision during a procedure. Once the procedure is finished, the deformable member can be drawn back into the tube.

A method of end-to-side anastomosis of blood vessels for connecting a side portion of a first blood vessel to an end portion of a second blood vessel involves holding a first site on the side portion of the first blood vessel using a holder, and partially elevating the side portion of the first blood vessel; superimposing a second site on the side portion of the first blood vessel on the end of the second blood vessel and fixing them with a ring-shaped fixing member to each other; and detaching the holder from the first blood vessel when they are fixed by the fixing member or after they are fixed. The end-to-side blood vessel anastomosis method can readily open the dissected portion on the side of the blood vessel upon end-to-side blood vessel anastomosis and retain it in that state. No foreign matter is present within the blood vessel after completion of the anastomosis.

A device for end-to-side anastomosis of body ducts comprising a coupling (2) which can be positioned on a side wall (3a) of a first duct (3) and connectable to a second duct (4) in order to create a fluid communication between the first (3) and second duct (4), and means of restraint (5) to firmly and preferably removably attach the coupling (2) to said first duct (3). The device (1) also comprises at least one membrane (6) removably positioned between the coupling (2) and side wall (3a) of the first duct (3) to prevent or allow the fluid communication between the first (3) and the second duct (4).

An inventive flanged graft for end-to-side anastomosis includes a tubular graft member and a flanged section The type and size of the flanged section is determined by various factors such as identity of the receiving artery, position of the arteriotomy on the receiving artery, and luminal diameter of the graft. The graft is preferably anastomosed to the receiving artery using continuous sutures to join the arteriotomy to the peripheral edges flanged section.

The invention relates to a pneumoperitoneum closing device which performs gastrointestinal and gastroesophageal end-to-side anastomosis under a total laparoscope by using a tubular anastomat in a laparoscopic gastrointestinal operation. By the pneumoperitoneum closing device, the defects that the tubular anastomat used in the laparoscopic gastric cancer operation in the prior art is inconvenient to operate and air leakage is easily caused are overcome. The pneumoperitoneum closing device comprises an operating panel which is arranged on the top and is provided with a plurality of sealed operating holes, a sleeve which is arranged at the bottom, has appropriate elasticity and is matched with an incision of an abdominal wall of a human body and a flexible connection part which is connected with the operating panel and the sleeve, wherein the end part of the sleeve is provided with a blocking part, and the other end of the sleeve is provided with a turnover clamping part; the sleeve is inserted into the incision of the abdominal wall; the blocking part is positioned inside an abdominal cavity, the clamping part is positioned outside the abdominal cavity, and the blocking part plays a role in blocking to prevent the sleeve from being separated from the incision, and the clamping can be pressed on the abdominal wall in a turnover mode; and elasticity generated by the sleeve is extruded on the wall of the incision to play a role in sealing. The pneumoperitoneum closed device has a one-hole and multi-channel structure and is convenient to operate, and the operation cost is saved.

A method for tensioning incisions made in a target vessel during an anastomosis procedure is provided. After an incision is made in a target vessel, incision tensioners are placed within the incision in order to tension the incision. The incision is tensioned when the incision tensioners are pulled taut in order to stretch the incision to a predetermined length or a predetermined force. The tensioners allow for proper grafting of a graft vessel to the target vessel in an end to side anastomosis. In addition, the incision tensioners allow the incision to have a known geometry, thereby allowing precise grafting of the graft vessel to the target vessel during the anastomosis procedure. After the incision is tensioned, the graft vessel is grafted to the target vessel using clips, sutures, staples or other anastomosis devices. One example of anastomosis clips are configured to capture the graft vessel and the target vessel such that the graft vessel grafts with the target vessel.

An inventive flanged graft for end-to-side anastomosis includes a tubular graft member and a flanged section The type and size of the flanged section is determined by various factors such as identity of the receiving artery, position of the arteriotomy on the receiving artery, and luminal diameter of the graft. The graft is preferably anastomosed to the receiving artery using continuous sutures to join the arteriotomy to the peripheral edges flanged section.

A device for forming an end-to-side anastomosis of blood vessels or ducts includes a first engagement structure (7) for engaging an end portion (2) of a blood vessel or of a prosthesis, a second engagement structure (35) for stably engaging a side portion (4) of the blood vessel or prosthesis, and a mechanism (10, 14) for reciprocally connecting the first and second engagement structures (7, 35). The second engagement structure (35) includes one or more piercing elements (9) adapted to only partially penetrate the side wall (4) of the blood vessel or prosthesis so as to avoid direct contact between the elements (9) and the blood inside the vessel or prosthesis.

A vascular clip for use in end-to-side anastomoses having a handle connected to a lower ring and an upper ring. The handle includes a resilient element biasing the two rings together so that the rings are closely juxtaposed when the clip is closed. The respective facing surfaces of each of the rings may be provided with a rough surface. A graft vessel or an artificial aneurysm may be sutured to the lower ring. The graft vessel or artificial aneurysm may be autologous or heterologous material or may be made of synthetic material. The handle may fit into a clip applier that facilitates the application of the clip. The handle and the clip applier may be of different shapes depending on the various applications of the clip. The rings may also have different shapes and sizes to accommodate different kinds of anastomoses and different vessels of all sizes in all parts and cavities of the human or animal body. The two rings are substantially the same dimension, which preferably may be in the range of from around 2 mm up to around 2.5 cm.

Endovascular stent insertion methods are provided. In one embodiment for end-to-side anastomosis the method includes disposing an endovascular stent in a transparent sheath; inserting a guide wire through a guide needle into first and second blood vessels; sliding the endovascular stent into both the first and second blood vessels along the guide wire and the guide needle to dispose in a position between spaced first and second blood vessels; and pulling the sheath when an intermediate annular marker band of the endovascular stent seen through the transparent sheath is substantially disposed between the first blood vessel and the second blood vessel to release the endovascular stent so that the endovascular stent is adapted to expand to securely hold the facing ends of the first and second blood vessel together.

A device for creating an end-to-side anastomosis between a graft vessel and a recipient vessel having an extravascular member, such as an upper ring, an intravascular member, such as a lower ring, and means to fix the intravascular member in the recipient vessel, such as a handle with a resilient element biasing the extravascular member and the intravascular member together. A graft vessel is attached to the intravascular member around an edge of an opening in the intravascular member. Other means than a biasing resilient element may be employed to fix the intravascular member in the recipient vessel which do not require an extravascular member, such as expandable cylinders. In other embodiments, means may be employed to insert the intravascular member into the recipient vessel such as delivery systems that open an arteriotomy while simultaneously delivering the intravascular member into the recipient vessel.

A vascular graft (30) comprises a proximal inlet section (31), a first distal section (32) and a second distal section (33). The first distal section (32) and the second distal section (33) are attached to the proximal inlet section (31) at a Y-shaped bifurcation region. In use the proximal inlet section (31) is attached to a first part (34) of a host artery in an end-to-side anastomosis. A second part (35) of the host artery is cut to form a first section (36) of the host artery on a first side of the cut and a second section (37) of the host artery on a second side of the cut. The first distal section (32) is attached to the first section (36) in an end-to-end anastomosis, and the second distal section (33) is attached to the second section (37) in an end-to-end anastomosis. When implanted the graft (30) directs blood flow from the first part (34) of the host artery through the proximal inlet section (31), into the second distal section (33) and into the second section (37) of the host artery along a single flow path.

A surgical anastomosis apparatus is suitable for the end-to-side anastomosis of a minor-caliber hollow viscus and a heavy-caliber hollow viscus, thus effectively avoiding various complicating diseases caused by the prior art. The technical proposal comprises a frame pipe, a fairlead connected with the frame pipe, a puncture needle connected with the fairlead, an elastic circular pressuring sheet and an installation sleeve. The invention makes full use of the certain tension existing in an anastomosis joint and the elasticity of the elastic circular pressuring sheet. The good combination of the tension and the elasticity causes the anastomosis joint to be firmer. The anastomosis is pressurized circularly and continuously; the lamination is correct and the operation is easy. The fairlead can be used for drainage and can be pulled out with the frame pipe after the operation in external drainage. And in internal drainage, the fairlead can be used for discharging out from a body by a larger lumen after the necrotic tissue at the inner edge of the anastomosis joint drops off after being pressurized without foreign matter left, thus preventing the blooding, the leakage, the fistula and the stenosis of the anastomosis joint to a certain extent. In addition, a structure which is similar to papillary and is formed on the wall of the heavy-caliber hollow viscus at the anastomosis joint possibly prevents back streaming.

The invention relates to a hepaticojejunostomic and intestinal end-to-side anastomotic magnetic device consists of more than two sets of hepaticojejuno-anastomats and intestinal end-to-side anastomats. Each hepaticojejuno-anastomat consists of a hepaticojejunostomic magnetic ring and a hepaticojejunostomic magnet matched with the hepaticojejunostomic magnetic ring. The intestinal end-to-side anastomat consists of an intestinal end-to-side anastomotic magnetic ring and an intestinal end-to-side anastomotic magnet matched with the intestinal end-to-side anastomotic magnetic ring. Magnetic attraction of more than two sets of hepaticojejuno-anastomats and a set of intestinal end-to-side anastomat are used to complete wireless sutured hepaticojejunostomy and intestinal end-to-side anastomosis, thereby deficiencies of extremely high operation difficulty of traditional suturing way by needles and threads and postoperative complications, such as gallbladder drainage and stricture anastomotie stoma occurrence are avoided. And the hepaticojejuno-anastomats and intestinal end-to-side anastomat can be discharged from the body along with faeces in a period of time and are not left in the body, thereby no adverse effect is caused.

An elongate device, actuate in cross-section, for placement around a vessel, comprises an essentially non-porous outer layer and a biodegradable inner layer.An alternative device comprises a tubular portion for placement around a graft and a portion, arcuate in cross-section, that can straddle a native vessel, at the site of an end-to-side anastomosis.

Methods and devices for perfusing a blood vessel during the entire course of an end-to-side or end-to-end anastomosis procedure. One method can be used to form an end-to-side anastomosis of a saphenous vein graft to a coronary artery during an off-pump, beating heart, coronary artery bypass graft. In this example, the distal end of an elongate tube carrying a saphenous vein graft is advanced into an arteriotomy distal to an occlusion in the coronary artery. Perfusing blood flow is provided through the tube to the coronary artery, the vein graft is advanced over the tube to the arteriotomy and sutured completely to the coronary artery. The elongate tube can be retracted through the now secured vein graft, and the coronary artery supplied again from the proximal end of the vein graft. Some tubular devices include a reversibly expandable distal region, to form a seal between the inserted tube and the coronary artery being perfused, to prevent blood flow into the surgical field.

Endovascular stent insertion methods are provided. In one embodiment for end-to-side anastomosis the method includes disposing an endovascular stent in a transparent sheath; inserting a guide wire through a guide needle into first and second blood vessels; sliding the endovascular stent into both the first and second blood vessels along the guide wire and the guide needle to dispose in a position between spaced first and second blood vessels; and pulling the sheath when an intermediate annular marker band of the endovascular stent seen through the transparent sheath is substantially disposed between the first blood vessel and the second blood vessel to release the endovascular stent so that the endovascular stent is adapted to expand to securely hold the facing ends of the first and second blood vessel together.

The invention relates to a hepaticojejunostomic and intestinal end-to-side anastomotic magnetic device consists of more than two sets of hepaticojejuno-anastomats and intestinal end-to-side anastomats. Each hepaticojejuno-anastomat consists of a hepaticojejunostomic magnetic ring and a hepaticojejunostomic magnet matched with the hepaticojejunostomic magnetic ring. The intestinal end-to-side anastomat consists of an intestinal end-to-side anastomotic magnetic ring and an intestinal end-to-side anastomotic magnet matched with the intestinal end-to-side anastomotic magnetic ring. Magnetic attraction of more than two sets of hepaticojejuno-anastomats and a set of intestinal end-to-side anastomat are used to complete wireless sutured hepaticojejunostomy and intestinal end-to-side anastomosis,thereby deficiencies of extremely high operation difficulty of traditional suturing way by needles and threads and postoperative complications, such as gallbladder drainage and stricture anastomotie stoma occurrence are avoided. And the hepaticojejuno-anastomats and intestinal end-to-side anastomat can be discharged from the body along with faeces in a period of time and are not left in the body,thereby no adverse effect is caused.

A system and method for end-to-side anastomosis to an anatomical passageway is disclosed. The system and method are particularly useful in coupling an LVAD pump to an aorta. The system and method include using a tubular graft member having a skirt flange that engages the side of the aorta, a seating assembly and a flanged stent for securing the tubular graft to the side of the anatomical passageway. An assembly for creating an opening in the side of the anatomical passageway and an assembly for delivering the tubular graft is also disclosed.