32 results about "Surgical anastomosis" patented technology

A method of performing a surgical anastomosis between a distal and proximal tissue section including providing a surgical stapling device having a head portion including an anvil assembly and a shell assembly, a pusher disposed in movable relation to the anvil assembly between retracted and extended positions, the pusher including an inner wall and a cavity disposed radially inwardly of the inner wall of the pusher. The steps include placing the anvil assembly at least partially within a distal section of tissue, placing the shell assembly at least partially within a proximal section of tissue, and approximating the anvil assembly and the shell assembly such that portions of the distal section of tissue including a first row of staples and portions of the proximal section of tissue including a second row of staples move into the cavity.

Apparatus for performing a surgical anastomosis include a tubular body (102) having an onion portion (114) formed near the distal end of the tubular body. The apparatus includes a sleeve (104) having a radius sized and dimensioned to slidably receive the tubular body therein. The apparatus includes a plunger assembly sized and dimensioned to be slidably received within the central lumen of the tubular body. The plunger assembly includes a distal end configured and adapted to deploy the onion portion.

A connector for surgical anastomoses is disclosed. The connector has a sleeve with an inlet and an outlet. The inlet is for fluid connection with a first blood vessel. The inlet is generally co-axial with the first blood vessel. The outlet is for fluid connection with a second blood vessel. The outlet is generally orthogonal to the second blood vessel.

Apparatus (100) for performing a surgical anastomosis include a tubular body (102) having an expandable anchor (114) operatively coupled near a distal end thereof. The apparatus further includes a sleeve (104) slidably received about the tubular body. The sleeve has an expandable anchor operatively coupled near a distal end thereof. The expandable anchor of the tubular body has an annular (116) ring concentric with a longitudinal axis defined by the tubular body.

The invention discloses a primary-secondary type surgical anastomosis magnetic ring. Both the secondary ring and primary ring are elliptic or round rings, the secondary ring and primary ring are mutually connected and located through more than two buckle structures on the primary ring, discontinuous grooves are formed in the ring surface of the primary ring in contact with the secondary ring, and a press incline is formed on the periphery of the ring surface. The primary ring comprises an elliptic or round primary ring sleeve and an elliptic or round primary magnetic ring corresponding to the primary ring sleeve and made of magnetic material, the primary ring sleeve is annular U groove-shaped, the primary magnetic ring is embedded in the annular U groove structure, and the discontinuous grooves, press incline and buckle structure are formed in the corresponding sleeve surface of the primary ring sleeve. The secondary ring comprises an elliptic or round secondary ring sleeve and an elliptic or round secondary magnetic ring corresponding to the secondary ring sleeve and made of magnetic material, the secondary ring sleeve is annular U groove-shaped, and the secondary magnetic ring is inserted in the annular U groove structure. The primary-secondary type surgical anastomosis magnetic ring is capable of preventing the untimely magnetic ring falling due to quick magnetic force increase due to tissue healing thinning between magnetic rings and preventing the staggering of the secondary ring and primary ring.

The invention relates to an anastomat applicable to a magnetic surgical department. The anastomat consists of a gun head and a gun body. The gun head comprises a first magnetic ring, a first magnetic shielding case, an outer connecting shell, an annular cutting edge, a second magnetic ring, a second magnetic shielding case and an inner connecting pipe; the gun body comprises a gun body shell, a cutting propelling device and a thread adjusting device. The first magnetic ring covers the first magnetic shielding case; the outer connecting shell sleeves the first magnetic shielding case and can slide relative to the first magnetic shielding case; the annular cutting edge is arranged on the inner side wall of the first magnetic ring and can slide relative to the first magnetic ring; the second magnetic shielding case covers the second magnetic ring, one end of the inner connecting pipe is provided with a clamping jaw, the other end of the inner connecting pipe is provided with a circular pipe, the inner connecting pipe is installed in a groove in the inner wall of the second magnetic ring through the clamping jaw, the circular pipe can be nested in the annular cutting edge, after the gun body shell is connected with the outer connecting shell, the surplus tissue can be cut by utilizing the cutting propelling device to push the annular cutting edge, the inner connecting pipe is pressed to be separated, the distance between the first magnetic ring and the second magnetic ring is adjusted by utilizing the thread adjusting device, and rapidness, safety and reliability in surgical anastomosis with no foreign matter and stitch remaining in an anastomotic stoma can be realized.

Methods and apparatus for anastomosis of a lumen according to various aspects of the present invention operate in conjunction with an impermeable stent. The impermeable stent may comprise a scaffold and, if needed, a sealant, such as a membrane and/or adhesive. In one embodiment, the scaffold, membrane and/or adhesive comprise biocompatible materials suitable for bio-absorption and/or degradation.

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.

Apparatus for performing a surgical anastomosis are disclosed. The apparatus include a tubular body having a proximal end and a distal end, an onion sleeve portion formed near the distal end of the tubular body and an inner tube disposed within the tubular body. The inner tube includes at least one pair of longitudinally aligned needle passages formed below the onion sleeve portion of the tubular body. The apparatus further includes at least one needle assembly disposed within the at least one pair of longitudinally aligned needle passages and a firing assembly operatively coupled to the proximal end of the tubular body. The firing assembly is configured and adapted to eject the pair of needles from the apparatus.

The invention provides a 3D-printed sutureless biliary-intestinal anastomosis support for hepatopancreatobiliary surgery and relates to the technical field of surgical anastomosis. The 3D-printed sutureless biliary-intestinal anastomosis support for the hepatopancreatobiliary surgery comprises a connecting bucket rack, wherein symmetric-arranged supporting grooves are separately formed in the twoends of the external wall of the connecting bucket rack, supporting maintaining plates located at supporting groove positions of corresponding positions are fixedly connected with the external wall ofthe connecting bucket rack, two symmetric-arranged adjusting grooves which are located at the two sides of the same horizontal line are formed in the external wall of the connecting bucket rack, positions of the two adjusting grooves are rotatably connected with rotating threaded rods in a penetrated manner, single ends, far away from the adjusting grooves, of the two rotating threaded rods are rotatably connected with the internal wall of the connecting bucket rack, and two symmetric-arranged adjusting fixing heads are arranged in the two adjusting grooves. A biliary-intestinal anastomat support can be sutureless and be thorough in connection, hepatopancreatobiliary ducts can be effectively maintained unblocked, and unblocked blood can be kept.

The invention relates to the technical field of medical instruments for surgical anastomosis, in particular to a device with a nail leakage prevention detection function, which comprises a nail bin cover and a nail bin, the nail bin cover can cover the nail bin, and the nail bin cover is matched with the nail bin; the nail bin is provided with a positioning device and a nail groove, and suturing nails used for binding are arranged in the nail groove; the nail bin cover comprises a flat plate-shaped body, a device to be positioned and a limiting hole are arranged on the flat plate-shaped body, the position of the limiting hole corresponds to that of a nail groove in the nail bin, a limiting block capable of moving up and down is arranged in the limiting hole, and the limiting block can slide into the nail groove without the suturing nail; and the positioning device is matched with a device to be positioned. The defect of nail leakage caused by installation omission is avoided, the huge hidden danger of the nail leakage defect to the operation risk is eradicated, and the reliability of the finished anastomat is guaranteed.

The invention relates to the field of accessories for closing a wound or keeping the wound closed in a surgical anastomosis operation, in particular to a segmented double-membrane flexible stent and a manufacturing method thereof. The segmented double-membrane flexible stent comprises net-shaped pipe unit sections (11) and is characterized in that the net-shaped pipe unit sections (11) are sequentially arranged in an end-to-end opposite mode, the adjacent net-shaped pipe unit sections (11) are connected in a hooked mode through fibers (12) to form a net-shaped pipe (10), stent heads (13) are correspondingly arranged at the two ends of the net-shaped pipe (10), and the stent heads (13) and the net-shaped pipe (10) are connected in a hooked mode through the fibers (12) to form a flexible stent (1); and the flexible support (1) is coated with silica gel membranes, and the silica gel membranes attached to the outer side faces of the hooked fibers (12) are mutually folded to form wrinkles. The manufacturing method of the segmented double-membrane flexible stent is characterized by comprising the following steps that I, the silica gel membranes are pasted; and II, sewing is carried out. The segmented double-membrane flexible stent is simple in structure and high in adaptability.

Topical composition for the treatment of mucosal lesions It relates to a topical composition comprising specific amounts of: a) a hyaluronic acid or a pharmaceutically or veterinary acceptable salt thereof, b) one or more adhesive agents, and c) a non-absorbable antibiotic; to delivery devices comprising it; and to its uses in medicine, in particular, in the treatment and/or prevention of mucosal lesions; in the prevention of postpolypectomy syndrome; as adjuvant therapy to mechanical treatments in gastrointestinal perforations, and as sealant treatment in surgical anastomoses and leaks or fistulas in gastrointestinal tract.