254 results about "Pneumoperitoneum" patented technology

Various embodiments of a laparoscopic trocar assembly are disclosed. The port assemblies include inserted parts that protect the patient's tissues at the point of deployment. The port assemblies include seals for maintaining pneumoperitoneum both when instrument are being used and when instruments are not inserted.

The invention is directed to a hand access system that provides hand access to a surgical area while maintaining pneumoperitoneum during laparoscopic surgery. The hand access system comprises a sheath retractor adapted to dilate a wound stretchable to a desired diameter, the sheath retractor includes a first ring being adapted for disposition interiorly of the wound, a second ring being adapted for disposition exteriorly of the wound, and a sheath being disposed in a generally cylindrical form between the first ring and the second ring and operable to exert a radial retraction force on the wound. The hand access system further comprises a detachable hand seal adapted to be removable from the second ring of the sheath retractor. The sheath retractor may be formed of an elastomeric material, and the hand seal may be formed of a gel material and includes a slit providing an instrument seal in the presence of an instrument or hand and a zero seal in the absence of the instrument or hand. In another aspect, there is disclosed a surgical access device adapted for disposition relative to an incision in a patient comprising a valve including a plurality of overlapping sheets defining an access channel, and a ring having an inner diameter for holding the valve by fixing each of the overlapping sheets along a portion of the perimeter, the access channel extends into communication with the incision in the patient. Each of the overlapping sheets includes a portion of the perimeter that is not fixed to the inner diameter of the ring, which provide open edges defining the access channel. The open edges slightly overlap at the center of the ring. The open edges may have different shapes including at least one of a straight edge, concave, convex and a cross-configuration. The hand access device may further comprise a septum seal formed at the proximal and distal ends of the ring.

A cannula assembly for the maintenance of an operative pneumoperitoneum in a patient comprising an elongated cannula having a proximal end and a distal end. A removable valve is securely arranged in the proximal end of the cannula to provide a seal and minimize the escape of gas introduced into the patient's pneumoperitoneum when an operative instrument is passed therethrough.

An access port device is provided which enables hand access to a patient's body cavity while retaining pneumoperitoneum by minimizing gas leakage through the access port device. In one embodiment, the access port device includes first and second sleeves forming an inflatable chamber and a third sleeve mounted within the second sleeve including an elastic band for sealingly engaging a hand or wrist. The access port device may also include an exit opening seal for positioning within the patient's body cavity and a second sleeve retraction prevention device for preventing inadvertent movement of the second sleeve outwardly from the patient's body cavity through the incision. In another embodiment, an access port device provided which includes an inner annular sealing device and a non-adhesive outer annular sealing device for creating a non-adhesive seal against the outer surface of a patient. An access component forming an inflatable chamber and including an integral sleeved glove may also be provided. In another embodiment, a sealing force applying feature includes a biasing surface formed on a generally flat annular extension and exposed to gas pressure in an adjacent gas chamber positioned to receive leakage gas leakage between the access port device an the patient to create sealing forces which tend to enhance the seal between the flexible annular extension and patient's skin.

The invention is directed to a hand access system that provides hand access to a surgical area while maintaining pneumoperitoneum during laparoscopic surgery. The hand access system comprises a sheath retractor adapted to dilate a wound stretchable to a desired diameter, the sheath retractor includes a first ring being adapted for disposition interiorly of the wound, a second ring being adapted for disposition exteriorly of the wound, and a sheath being disposed in a generally cylindrical form between the first ring and the second ring and operable to exert a radial retraction force on the wound. The hand access system further comprises a detachable hand seal adapted to be removable from the second ring of the sheath retractor. The sheath retractor may be formed of an elastomeric material, and the hand seal may be formed of a gel material and includes a slit providing an instrument seal in the presence of an instrument or hand and a zero seal in the absence of the instrument or hand. In another aspect, there is disclosed a surgical access device adapted for disposition relative to an incision in a patient comprising a valve including a plurality of overlapping sheets defining an access channel, and a ring having an inner diameter for holding the valve by fixing each of the overlapping sheets along a portion of the perimeter, the access channel extends into communication with the incision in the patient. Each of the overlapping sheets includes a portion of the perimeter that is not fixed to the inner diameter of the ring, which provide open edges defining the access channel. The open edges slightly overlap at the center of the ring. The open edges may have different shapes including at least one of a straight edge, concave, convex and a cross-configuration. The hand access device may further comprise a septum seal formed at the proximal and distal ends of the ring.

There is provided a surgical treatment instrument in which the mode can be easily switched between a treatment under a pneumoperitoneum condition and a treatment outside the peritoneal cavity, and forceps can be manipulated under the pneumoperitoneum condition, and when taking out a cancer-affected part, an incision in the abdominal wall is protected, and the incision is free from infection. The surgical treatment instrument includes a tubular portion which has a first fixing member provided at a near end-side open portion thereof, and also has a second fixing member provided at a remote end-side open portion thereof. At least two tension belts are mounted on the second fixing member, and fixing means for adjusting the length of the tension belts to position the first fixing member is provided at the first fixing member.

A high-simulation laparoscopic surgery simulated training device comprises a simulated human abdomen unit, an animal liver and a simulated canal system, wherein the simulated human abdomen unit is used for simulating the human abdomen skin through silica gel and composed of anterior abdominal wall skin and back skin which can be separated from each other, the anterior abdominal wall skin and the back skin are connected through sealing buckles, and thus the seal performance of the whole simulated human abdomen is guaranteed; the animal liver is arranged in the simulated human abdomen unit; the simulated canal system is arranged in the simulated human abdomen unit and connected with the animal liver. According to the high-simulation laparoscopic surgery simulated training device, the abdominal skin is simulated through sealing silica gel, inflation is performed through a poking clip to form the pneumoperitoneum, the human blood circulation in the physiological state is achieved through a pumping set, the real animal liver is anastomosed with the postcava, the portal vein, the hepatic artery and the biliary tract of a human simulator training system through the postcava, the portal vein, the hepatic artery and the biliary tract, and thus various simple or complex laparoscopic surgery training items can be carried out.

A tissue perforation device and method. The device preferably includes a housing having a housing pass-through, a penetrator securely and sealably positioned so that the penetrator device passes through the housing pass-through, and a vacuum system comprising a vacuum source securely and sealably attached through the housing for advancing a patient's tissue onto the penetrator device.

The present invention aims to provide a pneumoperitoneum gas heating and humidifying apparatus and a pneumoperitoneum device employing this apparatus, in which there is no contamination of the carbon dioxide gas with bacteria, a clean humidified gas is obtained, and the temperature of gas for which the relay was halted and then restarted does not rise excessively. This pneumoperitoneum gas heating and humidifying apparatus provided with an airline, a water conduit which is provided to at least a portion of the outer periphery of this airline, and water supply ports which are connected to the water conduit, wherein at least a portion of the wall of the airline facing the water conduit is formed of a water permeable membrane. The present invention further provides a pneumoperitoneum device in which a carbon dioxide gas cylinder, a gas flow regulator, and a trocar catheter are sequentially connected via piping.

The present disclosure is directed to a fluid cooled ultrasonic surgical instrument and related systems and methods of use therefor. In some embodiments, the disclosed ultrasonic surgical instrument is adapted for used within an insufflated cavity or pneumoperitoneum of a patient. The instrument includes a housing having an elongate shaft, a waveguide disposed at a distal end of the shaft, a coolant inlet port defined in an outer surface of the housing, and a coolant pump disposed within the housing and configured to move coolant from the coolant inlet port to the waveguide. During use, insufflation gas from within the pneumoperitoneum is drawn into the instrument shaft by the coolant pump, and blown over the waveguide to provide cooling. The delivery of ultrasonic energy and activation of the pump may be controlled by a processor in response to user input and waveguide temperature.

An aerosol generator 200 is positioned adjacent to a patient as an attachment to a trocar 201. The trocar has an entry port 203 for insufflation gas 208. Aerosol 207 generated by a vibrating element 205 is entrained in the insufflation gas and the mixture 209 is delivered through the trocar 201. The aerosol may contain a medicament. The trocar 201 may be a conventional trocar. Such trocars are typically used for a camera. The delivery of the aerosolised medicament can occur at the start of the procedure and be delivered in bolus. At the start of the procedure, the peritoneum is being inflated by means of the flow of insufflator gas. This gas flow will help to entrain the aerosolised medicament to the pneumoperitoneum regions. The surgeon can temporarily remove a camera from the trocar port to facilitate insertion and positioning of the aerosolising unit.

The invention relates to the technical field of minimally invasive surgical equipment, in particular to an integrated, mobile and minimally invasive electronic endoscope system. The integrated, mobile and minimally invasive electronic endoscope system comprises a case and an electronic endoscope connected with the case. A display is disposed on one lateral panel of the case and used for displaying image information collected by the electronic endoscope. A pneumoperitoneum instrument module is disposed in the cavity of the case. Due to the fact that the electronic endoscope, the display and the pneumoperitoneum instrument module are integrated into the case, the integrated, mobile and minimally invasive electronic endoscope system is quite convenient to use and convenient to carry and move. Meanwhile, the integrated, mobile and minimally invasive electronic endoscope system adopts the integrated structure and is independently manufactured by one factory, so that the system is high in compatibility and quite convenient and fast in later maintenance.

The invention relates to a pneumoperitoneum-free peritoneoscope suspending type abdominal wall puncture device, and overcomes the defect that secondary trauma occurs easily to patients by using a kirschner pin to puncture into abdominal walls to suspend the abdominal walls. The puncture device comprises a sleeve and a plurality of supporting arms arranged on the sleeve in a central radial shape, wherein a deformation portion is connected to the end portion of the sleeve and connected with the supporting arms; and one ends of pull ropes are fixed on the end portion of the supporting arms, lugs with rope holes are arranged on the sleeve away from the deformation portion, and the other ends of the pull ropes penetrate through the rope holes in the lugs to be fixed on the outer portion of the abdominal wall. A supporting surface is arranged after the supporting arm is opened, and a barrel-shaped space is formed after the supporting arm is suspended, so that enough surgical fields are provided during the surgery; and the supporting arm of the puncture device is inserted from a cut of the abdominal wall and is opened gradually, so that the kirschner pin is not needed to perform puncture and suspension, the secondary trauma is prevented, and the puncture device is helpful for alleviating traumatic pains of patients.

A uterine manipulator operable to detach the uterus and cervix from the vagina. The uterine manipulator includes an umbrella-like tip that creates a secure connection between the uterine manipulator and the uterus and cervix. The uterine manipulator also includes a pneumooccluder that enables rotation of the manipulator shaft while maintaining pneumoperitoneum. The uterine manipulator further includes a cutter that travels in a circle at the junction of the cervix and the vagina, permitting detachment of the uterus and cervix from the top of the vagina.

The invention relates to disposable purse-string forceps for a laparoscope, which are used for realizing manual purse suture in the abdominal cavity of a patient and overcome shortcomings that an instrument for a laparoscope which is used for realizing circumferential purse suture for surfaces of digestive tract tissues in the abdominal cavity of the patient cannot enter the pneumoperitoneum to operate in the prior art. The disposable purse-string forceps comprise forceps and an opening and closing driving mechanism which is connected with the forceps, the driving mechanism is disposed in a shell, the shell comprises a rod arranged at the front end and a holding portion connected with the rod, a push rod is disposed in the shell, the tail end of the push rod extends out of the shell, needle holes are arranged on two sides of the inside of the rod, needles penetrate into the needle holes, head ends of suture threads are detachably fixed on needle heads, and needle tail ends are connected with the push rod. The driving mechanism drives the forceps to open and close, the forceps can tightly clamp tissues after being closed, the needles with the suture threads are filled in the needleholes, and are driven by the push rod to penetrate into the tissues, then the suture threads are tied tightly by a tool, and accordingly suture is realized.

The present disclosure is directed to a fluid cooled ultrasonic surgical instrument and related systems and methods of use therefor. In some embodiments, the disclosed ultrasonic surgical instrument is adapted for used within an insufflated cavity or pneumoperitoneum of a patient. The instrument includes a housing having an elongate shaft, a waveguide disposed at a distal end of the shaft, a coolant inlet port defined in an outer surface of the housing, and a coolant pump disposed within the housing and configured to move coolant from the coolant inlet port to the waveguide. During use, insufflation gas from within the pneumoperitoneum is drawn into the instrument shaft by the coolant pump, and blown over the waveguide to provide cooling. The delivery of ultrasonic energy and activation of the pump may be controlled by a processor in response to user input and waveguide temperature.

The invention relates to the field of laparoscopic micro-invasive surgery, in particular to a spindly non-pneumoperitoneum device for a single-port laparoscopy. According to the spindly non-pneumoperitoneum device, the defects of small surgery space, poor surgical field exposure and great quantity of abdominal incisions in a traditional non-pneumoperitoneum technology can be overcome. The spindly non-pneumoperitoneum device consists of a fixed frame, a suspension mechanism and a spindle mechanism. Due to the adoption of the technical scheme that a support ring enables spindly spokes to be stretched off and be arrayed in an umbrella shape by upwards lifting a suspender, an anterior abdominal wall is semi-spherically lifted and suspended by the spokes arrayed in an umbrella shape and the phenomenon that the surgery space becomes smaller and narrower due to the fact that abdominal walls on two sides gather towards the middle to extrude intestinal canal to be concentrated to the middle by a suspending pull force of the abdominal walls is avoided; due to adoption of single incision in umbilical region, an illuminating probe, surgical instruments and the like extend into an abdominal cavity for surgery by using a hollow structure of the device; and due to the adoption of a rotational suspension device, the surgical instruments obtain a more favorable operation angle and the problems of small surgery space, insufficient surgical field exposure and great quantity of abdominal incisions in the traditional non-pneumoperitoneum technology are better solved.

A safety isolation bag is a pneumoperitoneum device for intra-abdominal, endoscopic procedures, power morcellation and vaginal morcellation for facilitating safe removal of body mass from within the abdominal cavity. It comprises of an expandable and collapsible enclosed internal space (5) having a neck portion (4) with mouth (3) having retractor means (2) and provided with markings, colour coded indicating how much the bag is to be pulled out for the removal of large, medium and small tissue mass, and also having one or more non-return valves (6) attached with long looped threads (8) on one of the surface in the wall of the safety isolation bag below the neck as a means for introducing the surgical instruments and accessories into the enclosed internal space at the right place and to close the puncture hole after the procedure. It is made of one or more layers of flexible biocompatible / medical grade plastic film.

The invention relates to a multi-channel single-hole laparoscopic puncture outfit which comprises a multi-hole operating platform and a laparoscopic channel tube, wherein the multi-hole operating platform is arranged outside the abdominal cavity; and the laparoscopic channel tube is connected with the multi-hole operating platform and can be inserted into the abdominal cavity. The multi-channel single-hole laparoscopic puncture outfit is characterized in that the multi-hole operating platform is provided with a plurality of independent instrument channels having double-layer linkage air tightness, and at least one air inlet tube and one air outlet tube; the laparoscopic channel tube is an approximately circular flexible film channel, the upper end is connected with the multi-hole operating platform, and the lower end is connected with a circular overturn ring; and an inner ring with a lifting belt, capable of making a vertical free displacement, is arranged outside the laparoscopic channel tube composed of the flexible film. The puncture outfit has the air tightness function, and can ensure that the instrument maintains a pneumoperitoneum pressure when being moved in vivo; and the simple air inlet tube mechanism ensures the maintained pneumoperitoneum pressure and facilitates the quick removal of fume generated when human tissues are subjected to electric knife cauterization. The entire puncture outfit is so flexible that surgeons can freely operate the instrument, thereby shortening the surgery time.

Various embodiments of a laparoscopic trocar assembly are disclosed. The port assemblies include inserted parts that protect the patient's tissues at the point of deployment. The port assemblies include seals for maintaining pneumoperitoneum both when instrument are being used and when instruments are not inserted.

An endoscope surgery system is provided, as a medical system, to be easily used by a user who is not used to the operation. An endoscope operation system includes a trolley and a remote controller. The trolley includes a plurality of medical devices (having a TV camera for an endoscope, a light source device, pneumoperitoneum equipment, an electric knife, and a VTR). Further, the trolley includes a system controller for radio communication with the medical devices, and an operation panel and a display panel for operating the system controller. The system controller detects operation states of the plurality of medical devices, determines the medical device to be operated next based on the detection result, and displays, on the operation panel or the display panel, an operation screen of the medical device or a screen for information on the operation state based on the determination result.

The invention discloses a notch sealer of abdominal wall of laparoscope surgery, which consists of elastic bushing ring (1) and soft sleeve (2), wherein one end of the soft sleeve (2) connects the elastic bushing ring (1) and the other end is opening. The invention has simple and reasonable structure, convenient usage, low cost, which can seal the notch rapidly and rebuilds pneumoperitoneum to finish the reconstruction of digestive tract in the internal and external linked abdominal cavity under pneumoperitoneum condition.

The invention provides an intelligent constant-pressure variable-current pneumoperitoneum apparatus, which comprises a pressure reducing valve, an operation-cavity pressure equivalent device, a digital parallel-connection control valve for linear proportional flow rate, and a micropressure sensor, wherein a pressure measurement point of the micropressure sensor is near a connection part of the pressure equivalent device and a gas pipe; an output signal of the micropressure sensor is transmitted to a microcomputer through an A / D conversion module; and the microcomputer comprises a pressure flow control unit. According to a calibration curve reflecting that the prestored pressure loss delta P of the gas pipe changes with flow rate, a delta P value under the current flow rate is acquired; an instantaneous pressure control value P-control of the operation-cavity pressure equivalent device is calculated to be equal to P-set plus delta P; the P-set is an expected pressure control value; the pressure-detection A / D conversion module acquires a present pressure value P-detection of an air outlet; a pressure deviation value delta P-difference is evaluated to be equal to P-control minus P-detection; and according to the pressure deviation value delta P-difference, a proportional-integral pressure-flow closed-loop method is adopted for regulation so as to allow the delta P-difference to trend to zero. The apparatus has the advantages that the apparatus is precise to control pressure flow, smooth to transmit gas and capable of controlling pressure and supplying gas under extreme micropressure, and applies to different operation types.

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.

The invention discloses a telescopic and fixation-type endoscope puncture device. The telescopic and fixation-type endoscope puncture device comprises a tube cavity, a tube cavity base, a pneumoperitoneum port, a base sheet, M upper rotary buckles, M lower rotary buckles, N arc strutting pillars, N strutting petals, N strutting petal buckles, an outer core, an outer core base, N groove holes, a cutting part, an inner core, an inner core base and N rotary clamping grooves; the tube cavity comprises a tube cavity telescoping section and a tube cavity fixing section, the top of the tube cavity isconnected with the tube cavity base, and the two ends of the tube cavity telescoping section are connected with the tube cavity base and the tube cavity fixing section respectively. According to thetelescopic and fixation-type endoscope puncture device, through the arrangement of the tube cavity, the outer core, the inner core, the N arc strutting pillars, the N strutting petals, the N struttingpetal buckles and the N rotary clamping grooves, firm fixation of the interiors of the abdominal wall and the chest wall by the puncture device is achieved, and slip is avoided; meanwhile, the puncture length of the puncture device can be shortened, the situation that redundant tube cavity parts are left in the abdominal cavity and the chest cavity is avoided, convenience is brought to surgical operation, and precious time is saved.

The invention provides a single-hole surgery operation platform under a pneumoperitoneum environment. The single-hole surgery operation platform comprises an operation platform body; the operation platform body is provided with a pneumoperitoneum port and a plurality of instrument passages; a valve structure is arranged in the plurality of instrument passages respectively; and the lower part of the operation platform body is connected with a flexible sealing single which is used for sealing a surgical incision. The single-hole operation platform under the pneumoperitoneum environment has a single-hole and multi-passage type, and a contact part between the operation platform and a human body is provided with a sealing structure of the flexible sealing ring; and the valve sealing structure is arranged in the instrument passages respectively. The operation platform performs positioning through a single incision of the human body and the surgery process can be performed by using a plurality of minimally invasive surgery or multi-freedom-degree minimally invasive surgery medical instruments under the gas assisted environment. The single-hole surgery operation platform has a simple structure and can greatly reduce wounds and scars which are brought by surgeries to patients.