35 results about "Endoluminal surgery" patented technology

An endolumenal robotic system provides the surgeon with the ability to drive a robotically-driven endoscopic device to a desired anatomical position in a patient without the need for awkward motions and positions, while also enjoying improved image quality from a digital camera mounted on the endoscopic device.

The present invention is a device and method of using a variety of laparoscopic or NOTES surgical tools at a confined or inaccessible space, e.g., an intra-abdominal surgical and NOTES tool inserted through a single incision through the skin or hollow viscus. Generally, the laparoscopic or NOTES surgical devices include a device body having a first side and a second side, wherein the first side includes a positioning mechanism and the second side includes one or more of a variety of laparoscopic or NOTES tools.

A surgical instrument comprises a first elongated member and a second elongated member, the first elongated member and the second elongated member being operatively connected and configured to rotate in opposite directions to substantially limit counter torque. The first and second elongated members are flexible shafts. The surgical instrument can be configured to apply fasteners to a tissue portion. This embodiment of the surgical instrument includes a cartridge having a plurality of fasteners, an anvil, said anvil and cartridge being relatively movable between spaced and approximated positions, and a sled disposed in the cartridge. The sled includes a cam member. The cam member is designed to drive the fasteners through tissue and toward the anvil.

An improved method and apparatus for administering drugs during an endoluminal procedure is disclosed. An embodiment of the present invention utilizes a catheter having distal and proximal ends and a drug reservoir located within the catheter to efficiently and accurately deliver drugs during an endoluminal procedure.

A duel lumen catheter is provided for use in minimally invasive surgery. The catheter generally includes a first tube defining an operative lumen and a second tube terminating proximally of the first tube and defining an inflation lumen. In one embodiment, the first and second tubes are concentric. In an alternative embodiment, the first and second tubes are separate and extend parallel to each other. The first and second tubes are provided with inflation ports adjacent their respective distal ends. There is also provided a method for performing minimally invasive surgery by inserting the catheter through the esophagus of a patient, insufflating the stomach and performing a surgical operation through the catheter and external to the stomach.

The present invention is directed to a method for providing an access point for laparoscopic intra-abdominal surgery disconnected from the area of the ultimate intra-abdominal procedure. This method allows for the necessary skin incision(s) for insertion of the laparoscopic equipment to occur in a favorable area, transverse below one or more tissue layers to a secondary insertion point in a favorable area, and for the further insertion of the laparoscopic equipment. Favorable area selection affords the surgeon the ability, for example, to select a region of the patient that may result in a less obvious scar of the cutaneous layer of the abdominal wall for the first incision and optimal location in regards to mechanical stability of the muscular layer of the abdominal wall for the second incision. The invention further includes devices for performing such described method.

An endoluminal surgical system is disclosed that includes an operating device, a connecting rod, and a handle. The operating device comprises an operating instrument and a connecting part. During surgery, the operating device is placed in a cavity through an incision, then the tip end of the connecting rod enters the cavity along the puncture point to be fixedly connected with the connecting partof the operating device, the other end of the in-vitro connecting rod is fixedly connected with the handle, and then an operating instrument is controlled and adjusted in vitro through the handle to achieve a corresponding surgical operation. Injury to the body of a patient can be reduced, meanwhile, a surgical operation in vitro can be conducted more conveniently, and the success rate of a surgery is increased.

The invention provides a transverse intracavity stapler with a compact structure. The transverse intracavity stapler comprises an end actuator, a connecting outer pipe and a driving component at leastpart of which is arranged in the connecting outer pipe, wherein the end actuator comprises a staple cartridge shell and a positioning staple; the driving component comprises a driving shell used fordriving the staple cartridge shell; the staple cartridge shell is arranged in a staple cartridge accommodating cavity of the driving shell; an opening is formed in the staple cartridge accommodating cavity, and the staple cartridge shell can be axially arranged along the center shaft of the connecting outer pipe; one end of the positioning staple is arranged in the staple cartridge accommodatingcavity; a positioning staple hole which can be penetrated by the positioning staple, and the other end of the positioning staple is connected with a positioning staple driving mechanism. The structuremounting mode of an existing transverse stapler is improved, the assembly is compact, the radial size of the transverse stapler is effectively reduced, and the transverse stapler can enter an endoscopic surgical channel with a small inner diameter, so that the transverse intracavity stapler can be applied to intracavity surgeries.

The invention discloses an endoluminal surgery pressure monitoring system which comprises a pressure measuring optical fiber and a pressure monitor. The first end, extending into a cavity, of the pressure measuring optical fiber is provided with a pressure sensor, and the second end of the pressure measuring optical fiber is connected to the pressure monitor. The pressure sensor is used for measuring the pressure parameter in the cavity and transmitting the pressure parameter to the pressure monitor to be displayed and analyzed, the pressure parameter in a kidney can be obtained through observation visually and conveniently. The pressure sensor extends into the specified position in the cavity to be monitored, and the accuracy is high. According to an endoluminal surgery pressure adjusting system and method, on the basis of the endoluminal surgery pressure monitoring system, a peristaltic pump connected with a pressure controller is additionally arranged, the monitored pressure is compared with the maximum pressure set on the pressure monitor, opening and closing of the peristaltic pump are controlled according to an analysis and comparison result, so that liquid is poured into or discharged out of the peristaltic pump, pressure in the cavity is kept relatively constant in the endoscopic surgery process, and safe conduction of the surgery can be better achieved.

An endoluminal surgery system is disclosed. The endoluminal surgery system includes an operating device, a connecting rod, and a handle. The operating device includes an operating part and a connecting part. During the surgery, the operating device is placed in a body cavity through an incision, and then a piercing end of the connecting rod enters the body cavity through a piercing point and is fixedly connected with the connecting part of the operating device. The other end of the connecting rod that is outside the body is fixedly connected with the handle. Next, the operating part is controlled through the handle outside the body to achieve the corresponding surgical operation. After the operation, cut off the connecting rod, take out the operating device from the incision, and pull out the connecting rod, leaving no wound or tiny wounds on body. The present disclosure can reduce the injury to the patient's body, and make the surgical operation outside the body cavity more convenient, and improve the success rate of the operation.

The present invention is one rear urethral probe and one puncture needle for treating urethral stricture and urethral atresia. The rear urethral probe includes one sheath, one arc segment and one front straight segment connected successively, and has smooth hole. The puncture needle fitting the said rear urethral probe includes one needle with threads in the front part. During cryoprobe treatment of urethral stricture and urethral atresia, the puncture needle is first used in searching the weakest part, and the rear urethral probe is then used in puncturing. The present invention can facilitate the operation of treating urethral stricture and urethral atresia.

The invention provides a transverse stitching instrument for an endoscopic surgery. The transverse stitching instrument comprises a control part, a clamping push rod assembly, a positioning needle push rod assembly, a positioning needle driving assembly and a clamping driving assembly, wherein the positioning needle push rod assembly is arranged outside the clamping push rod assembly in a sleeve manner, the positioning needle push rod assembly is rotationally connected with the positioning needle driving assembly, the positioning needle push rod assembly and the positioning needle driving assembly are axially and relatively fixed and rotated relatively, the clamping push rod assembly is rotationally connected with the clamping driving assembly, the clamping push rod assembly and the clamping driving assembly are axially and relatively fixed and rotated relatively, the control part drives the clamping push rod assembly to rotate to make a clamping part be rotated relative to the clamping driving assembly, and the control part drives the positioning needle push rod assembly to rotate through the clamping push rod assembly to make a positioning needle be rotated relative to the positioning needle driving assembly. The steering of the end part of the stitching instrument is driven by rotating the control part, so that an operator can conveniently control the steering of the end part under the condition that a handheld handle part is not rotated, and therefore the use is convenient.

The invention provides a dilator and a surgical instrument, and relates to the technical field of medical instruments. The dilator comprises an inner tube and an outer tube; one end of the inner tubeis tapered; the outer tube sleeves the inner tube, and the inner side wall of the outer tube is provided with an endoscope head channel and/or a suction channel; the endoscope head channel is used forfixing an endoscope head, and the endoscope head is used for being connected with an endoscope device; the suction channel is used for being connected with an aspirator. The endoscope head can be inserted into brain tissues synchronously with the outer tube, the endoscope head can be used for observing whether or not the dilator reaches a target puncture site, during the operation, the directionand depth of the dilator are changed according to the positions and shapes of lesions in the brain, the direction and depth of a surgical operation are flexibly changed, and the operation time is shortened. The suction channel can absorb blood and seepage of a surgical view field at any time, which is beneficial for seeing the surgical view field and stopping bleeding; suction devices necessary for an operation inside dilator lumen are not needed, and the convenience and flexibility of the operation inside the dilator lumen are improved.

The subject invention relates to a valve replacement system together with methods of preparation and use, are provided for endovascular replacement of a heart valve in a host. The valve replacement system includes up to five components: a prosthetic valve device, a valve introducer device, an intraluminal procedure device, a procedure device capsule, and a tissue cutter. The system provides for endovascular removal of a malfunctioning valve and subsequent replacement with a permanent prosthetic heart valve.

The invention discloses a surgical instrument for traceless invisibility of a television endoscope surgery and a method thereof. The surgical instrument comprises handles (1) and an end head, wherein the handle (1) is in threaded connection with the end head or in a lock catch connection with the end head; the method comprises the following steps of: during an operation, inserting one or more handles (1) into a thoracic cavity or an abdominal cavity from a position favorable for assisting a main knife operator, and fixedly connecting an end head with the handle (1) in the thoracic cavity or the abdominal cavity through a main operation hole; the plurality of handles (1) are operated by an operation assistant by utilizing different functions of the end heads, and are matched with instruments of a main knife operator in the main operation hole to complete various operation steps. After the intracavitary surgery is finished, the handle (1) is separated from the end, the handle (1) is pulled out, whether the puncture inner hole has active bleeding or not is examined through an endoscope, and the outer puncture hole of the chest wall or the abdominal wall does not need to be sutured and is directly bound aseptically. According to the invention, surgical incisions are reduced, the safe surgical experience of any multiple auxiliary incisions is realized, only scars of injury of a single-operation incision are left, and the pain of a patient is reduced.

A system (1) for delivering a staple (9) to the locus of an artery (2) comprises a delivery conduit (5) for inserting into the lumen of an artery through which conduit a staple can be delivered to the locus, and an elongate element (6) such as a catheter for a balloon (7) for translating axial advancement of the delivery conduit through the artery into movement of the distal end of the delivery conduit away from the longitudinal axis of the artery and towards the artery wall.

The invention relates to a magnetic navigation catheter for branch artery reconstruction in arterial stenting. The magnetic navigation catheter comprises a main body magnetic catheter and a guide magnetic catheter, the guide magnetic catheter comprises a guide catheter, the tail end of the guide catheter penetrates through a balloon, a guide wire extending into the guide catheter from the outside is arranged in the guide catheter in a penetrating manner, and inflation of the balloon is controlled by a balloon control system; a first magnetic device protruding laterally is arranged on the outer wall, close to the balloon, of the guide magnetic catheter; an inner protective layer tube with a cavity is arranged in the main body magnetic catheter, the diameter of the inner protective layer tube is smaller than that of the main body magnetic catheter; one end of the main body magnetic conduit is a bent part, the tail end of the bent part is a magnetic suction area of the main body magnetic conduit, and a second magnetic device which is correspondingly magnetically sucked with the first magnetic device is arranged in an annular space between the main body magnetic conduit and the inner protective layer pipe in the magnetic suction area; after the first magnetic device and the second magnetic device are attracted, the cavity at the tail end of the bending part can be aligned with the branch artery, so that the position of the branch artery is accurately and stably determined in an operation.