14 results about "Abdominal wall" patented technology

The abdominal wall retractor for the observation hole of the laparoscope comprises a first retraction arm and a second retraction arm, the first retraction arm and the second retraction arm are hinged through a hinged shaft, and the first retraction arm comprises a first retraction arm front section, a first retraction arm middle section and a first retraction arm rear section. The end part of the rear section of the first retraction arm is fixedly connected with a first operation ring; the second retraction arm comprises a second retraction arm front section, a second retraction arm middle section and a second retraction arm rear section, the end part of the second retraction arm rear section is fixedly connected with a second operation ring, and the end part of the first retraction arm front section is movably connected with a first retraction rod and a second retraction rod; and the end part of the front section of the second retracting arm is movably connected with a third retracting rod and a fourth retracting rod. The utility model has the beneficial effects that the abdominal wall of the observation hole and the subcutaneous fat layer can be expanded, and the anterior sheath layer and the peritoneal layer can be better exposed, so that the peritoneal layer and the anterior sheath layer can be better sutured under direct vision, related complications of a puncture hole are avoided, the use is safe and reliable, and the operation time of medical personnel is saved.

The invention discloses a pressurizing flushing device for hyperthermic intraperitoneal perfusion chemotherapy, and relates to the technical field of medical instruments. Comprising a puncture catheter and a multidirectional flow guide nozzle, the puncture catheter comprises a catheter body, multiple sets of supporting cavities are formed in the catheter body in the length direction, the supporting cavities are communicated through second air inlet channels, and the supporting cavities are of an arc-shaped structure; the end part of the guide pipe body is connected with a multidirectional flow guide nozzle; one end of the nozzle main body is connected with a drainage guide pipe; the drainage catheter is used for connecting a chemotherapy pump machine; the nozzle body comprises a sprayer and a connecting pipe. The other end of the connecting pipe is connected with the drainage catheter; a plurality of through holes are formed in the spray head; and a rotor is rotationally arranged in the connecting pipe. The catheter is prevented from being bent and collapsed under the action of external force such as extrusion of visceral organs in the abdominal cavity and body position change, and it is ensured that a liquid medicine conveying channel is smooth; in addition, the contact uniformity of the liquid medicine and the abdominal cavity wall, especially the peritoneal micro transfer focus, is obviously improved.

The trocar assembly comprises a head, a long tubular structure having an open distal end and an open proximal end, a fixed cutting component combining a large cutter with two sharp lateral blades and a centrally located non-cutting soft end extending through the open distal end of the tubular structure, and a movable cutter safety case configured to extend through the open distal end of the tubular structure to cover the fixed cutting component and to retract from the open distal end to expose the fixed cutting component. When pressure is applied proximal to the cutter safety case, a large incision is formed in the fascia, the abdominal wall is penetrated, the reaction pressure from the abdominal wall is released, and the body cavity is safely reached.

The invention relates to an anti-reflux and anti-infection abdominal wall urine collection device which comprises a waistband, a connecting pipe, a drainage device, an extension pipe and a urine collection bag. A base is arranged on the waistband and provided with a through hole corresponding to a fistulization opening, one end of a connecting pipe is in threaded connection with the through hole, and the other end of the connecting pipe is in threaded connection with a drainage device. The position, close to the drainage device, of the connecting pipe is provided with a thread in a telescopic and tortuous mode, the inner wall of the connecting pipe is provided with a thread, and the thread is provided with an antibacterial coating. An anti-backflow device is arranged at the joint of the connecting pipe and the drainage device; one end of the extension tube is connected to the drainage device, and the other end is connected with the urine collection bag; a control device is arranged at the joint of the drainage device and the extension tube. The position, close to the drainage device, of the connecting pipe is tortuous, so that direct contact between the connecting pipe and air can be reduced; due to the arrangement of the antibacterial coating, the antibacterial capability can be enhanced; the anti-backflow device is arranged, so that urine can be discharged outwards in one direction; due to the arrangement of the extension tube, the urine collection bag can be fixed on the leg and is convenient to wear.

The invention discloses application of a hydrogel microneedle capable of being implanted into an abdominal cavity in colorectal cancer abdominal wall infiltration focus, and relates to the field of medicine. The traditional Chinese medicine composition is applied to clinical treatment of rectal cancer abdominal wall infiltration lesions, and a mouse subcutaneous tumor model and the abdominal wall infiltration lesions are verified, and the specific application method comprises the following steps that 1, after a mouse is subjected to general anesthesia, the abdomen of the mouse is opened, and the position of the abdominal wall infiltration lesions is detected and determined; step 2, clamping the sterilized micro-needle sheet by using noninvasive forceps and feeding the sterilized micro-needle sheet into an abdominal cavity; 3, attaching the microneedle substrate to the surface of a focus under direct view, and pressing to enable the needle body to penetrate through the peritoneum; and 4, flushing with normal saline to confirm that the microneedle is fixed, withdrawing the instrument, and suturing the incision. The microneedle physically penetrates through the surface layer of the peritoneum, the medicine is directly delivered to the deep layer of an infiltrating focus, the problem of low efficiency caused by the peritoneum barrier in the traditional therapy is solved, and the GelMA / hyaluronic acid hydrogel is gradually swelled and degraded in body fluid, so that collagenase, a macrophage scavenger and an anti-tumor medicine are continuously released, and the local effective concentration can be maintained for more than two weeks.

The present application can easily perform installation of a puncture needle guide adapter to an ultrasonic probe outside the abdominal cavity, and can easily confirm the installation state of the puncture needle guide adapter inside the abdominal cavity. Alternatively, insertion and extraction of the ultrasonic probe from a guide tube that passes through the abdominal wall can be smoothly performed. A puncture adapter (400) is detachably installed to a head (210) of a probe (200) outside the abdominal cavity. The puncture adapter (400) has a main body portion that covers a through hole for guiding a puncture needle, an insertion portion that is inserted into the through hole, and a needle guide hole that communicates with the main body portion and the insertion portion and guides the puncture needle inserted from a needle inlet portion of the main body portion to a needle inlet portion of the insertion portion.

This utility model proposes a trocar for laparoscopic surgery, relating to the field of trocar technology. It includes a trocar cone and a trocar cannula assembly. The trocar cone penetrates the trocar cannula assembly. The trocar cannula assembly includes a ventilation connector and a positioning cannula. One end of the positioning cannula is fixedly connected to and communicates with one end of the ventilation connector. The other end of the ventilation connector is detachably connected to the trocar cone. The other end of the positioning cannula is provided with an inflation-expansion blocking part, which communicates with the positioning cannula. This trocar for laparoscopic surgery can flexibly block the abdominal wall, effectively improving the airtightness of the trocar cannula fixed to the patient's abdominal wall.

This model helps in understanding the gross anatomy (shape, relative size, and three-dimensional positional relationship) of the intestines and mesentery. It is useful for medical students and young healthcare professionals to acquire basic knowledge for understanding the pathophysiology of diseases and injuries of abdominal organs, as well as for examination and treatment. [Solution] The model 50 has an intestinal tract 2 covered and embedded by the peritoneum 1, an intestinal tract 2 provided in the posterior abdominal wall 4 in a form where much of the outer circumference is covered by the peritoneum 1, and an intestinal tract 2 provided in the posterior abdominal wall 4 via the mesentery 5, wherein each of the intestinal tracts 2 is made of a flexible and smooth pliable material and attached to a substrate 23 which is the posterior abdominal wall 4, and each of the intestinal tracts 2 and the mesentery 5 are configured to be the same as or approximately the same length and thickness as those in living organisms, thereby solving the above problem.

The utility model relates to the technical field of medical instruments, and particularly discloses an exposing device for gall bladder resection of a single-port laparoscope. The first supporting rod is connected to the outer part of the pressing strip; through the arrangement of the pressing strip, the first supporting rod, the clamping mechanism and the supporting strip, the supporting strip can be bent, fixation is achieved through clamping of the first clamping buckle base and the first supporting rod, the supporting strip and the pressing strip are supported through the supporting mechanism, in the process, the pressing strip stably presses the intestinal tract, the supporting strip abuts against the anterior abdominal wall, and therefore the intestinal tract can be fixed. In addition, the length of the supporting strip and the length of the pressing strip can be tailored according to requirements, after tailoring, the supporting strip can be inserted into the inserting base through the inserting pipe, therefore, stable clamping and fixing of the supporting strip and the pressing strip are achieved, and good supporting and adjustability are guaranteed in the operation.

The invention discloses an abdominal wall local anesthetic diffusion visual analysis system based on infrared temperature image features, and relates to the technical field of medical monitoring. The thermal imaging acquisition and processing module is used for performing sequence scanning at preset time points set before and after retardation operation to obtain original temperature image data; the target region feature extraction module is used for determining a target analysis region according to the retardation type and determining feature parameters according to the temperature data of the target analysis region; and the effect prediction and evaluation module takes the characteristic parameter set as the input of a time sequence prediction model, and outputs and obtains the corresponding predicted low-temperature area and predicted retardation effect level. Through the infrared thermal imaging technology, the temperature change caused by diffusion of the local anesthetic in the abdominal wall tissue after injection can be continuously captured in a non-contact and non-radiation mode, so that the two-dimensional diffusion profile and the dynamic migration process of the local anesthetic can be visually presented in real time, and then corresponding visual information can be provided.

The invention provides a nursing device for stoma, and relates to the technical field of medical treatment. The nursing device comprises a fixing disc, a connecting rod and a mounting piece. The fixing disc is fixed in the body of a patient through nails, and the connecting rod arranged on the fixing disc penetrates out of the abdominal wall of the patient. One end of the mounting piece is inserted into a fistulization opening of a patient, and a connecting through hole communicated with the intestinal tract of the patient is formed in the middle of the mounting piece. The installation piece is installed on the connecting rod, and the connecting piece is connected with the suction cup or the bag-free type ostomy device. The mounting piece comprises a fixing cylinder, a connecting plate, a mounting cylinder and a limiting plate. One end of the fixing cylinder is inserted into the stoma of a patient. And the connecting plate is mounted on the fixed cylinder. The mounting cylinder is connected with the fixing cylinder. The limiting plates are mounted on the mounting cylinder, and the limiting plates are arranged between every two adjacent receding openings. Compared with a traditional ostomy bag, the ostomy nursing device has the advantages that irritation to the skin near the ostomy in the installation process is reduced, and meanwhile, friction between the ostomy bag and the intestinal tract at the ostomy position is reduced, and irritation to the intestinal tract is reduced.

This utility model relates to an intestinal decompression tube for insertion into an abdominal wall stoma, comprising a tube body and a main cavity in the middle of the tube body. A drainage interface connected to the main cavity is provided at the top of the tube body. A posterior balloon interface, a ventilation tube interface, and an anterior balloon interface are sequentially provided on the drainage interface. A guidewire channel connected to the ventilation tube interface is provided inside the tube body, and a guidewire is placed within the guidewire channel. A posterior balloon and an anterior balloon connected to the posterior and anterior balloon interfaces are respectively provided on the tube body. Several first side holes for suctioning and flushing thick feces are provided between the posterior and anterior balloons. Several steel balls are provided on the inner wall of the bottom end of the tube body. The posterior and anterior balloons are used to fix the tube body, the guidewire is used to pass through intestinal stenosis, and the steel balls are used for the tube body to turn, facilitating passage through intestinal stenosis. This design offers wide applicability.

The invention relates to a pneumoperitoneum-free laparoscopic surgery suspension system which comprises a suspension unit and a supporting system. The suspension unit comprises a plurality of pairs of puncture needles with hollow structures and guide wires penetrating through each pair of puncture needles; the supporting system is used for tightening and fixing the two ends of the guide wire. Compared with the prior art, the flexible full abdominal wall suspension system based on the central venipuncture guide wire is easy and convenient to operate and low in cost, does not need special equipment, can provide an excellent operation space comparable with a pneumoperitoneum method, and can be used for gasless laparoscopic cholecystectomy; the problems that physiological interference complications are caused by a traditional pneumoperitoneum method, and an existing pneumoperitoneum-free abdominal wall subcutaneous suspension device is insufficient in surgical field exposure, poor in patient BMI adaptability, dependent on special and expensive equipment, complex in operation, prone to causing abdominal wall injuries and the like are effectively solved.