13 results about "Urological surgery" patented technology

The application relates to the field of urological surgery, and particularly discloses a urological clinical stone discharge device, which comprises a bed body and a control main body, and further comprises a detection assembly arranged on the upper side of the bed body, which detects the pain of a patient during stone discharge according to the holding force of the patient; the detection assembly can detect the pain of the patient during stone discharge according to the holding force of the patient, and can improve the body stability of the patient; the triggering assembly can automatically adjust the triggering threshold of the detection assembly for detecting the holding force of the patient according to the holding force of the patient at the initial stage, so as to adjust different triggering thresholds according to different patients, improve the applicability to different patients, and automatically stop the stone discharge when the holding force detected by the detection assembly reaches the triggering threshold, so as to prevent the increase of local tissue pressure, the induction of mucosal injury and the aggravation of spasm caused by continuously performing the stone discharge.

The invention discloses a preparation method of anti-adhesion particles. The invention belongs to the technical field of biomedical materials. The raw materials used in the invention are all biocompatible materials, and inflammatory reaction and toxic residue are avoided through a natural cross-linking agent and non-toxic solvent system; through the synergistic effect and cross-linking treatment of the carboxymethyl cellulose, the chitosan and the polylactic acid, the particles can maintain the anti-adhesion effect for 7-14 days in vivo, and the key adhesion prevention period after soft tissue and urinary surgery is covered; the particles have flexibility, antibacterial property and urine corrosion resistance, can be used for preventing adhesion of soft tissue postoperative wounds, and can also be used for preventing adhesion of urinary surgical operation sites and modifying instrument surfaces; the low-temperature spray drying and gamma-ray sterilization process ensures the activity of the raw materials and the sterility of the product, the process parameters are easy to control, the method is suitable for industrial production, and the production cost is reduced compared with the existing like products.

The application discloses a prostate puncture gun head for in-situ rotary cutting and a sampling method thereof, and belongs to the technical field of urological surgery. The needle head is arranged at the front end of the puncture gun and is used for penetrating into the prostate tissue; the blade groove is semicircular and is arranged along the longitudinal direction of the needle head; the blade is rotatably arranged in the blade groove and rotates along the track of the blade groove; the tissue groove is arranged on the surface of the needle head and is used for collecting the cut tissue sample; the knob spring device is connected with the blade and is used for providing rotary power to drive the blade to rotate and cut the prostate tissue along the blade groove. The knob spring device is used for driving the blade to rotate and move along the track of the semicircular blade groove, in-situ rotary cutting and sampling of the prostate tissue are realized, tissue tearing is effectively reduced, the flatness of the cutting surface is ensured, and the accuracy and efficiency of the sampling process are improved.

The present application relates to the field of urinary surgery stone image pattern recognition, and provides a urinary surgery stone image pattern recognition method and system. By acquiring the urinary surgery stone image, the stone image is recognized to determine the suspected stone area and its boundary area; for each pixel point in the boundary area, based on its gray scale feature and neighborhood feature, the probability of the pixel point belonging to the stone is calculated to generate a boundary probability map; based on the boundary probability map, the size, volume and Hounsfield unit value of the stone are determined through a preset multi-scale feature fusion manner. Thus, the problem of missed diagnosis, misdiagnosis and Hounsfield unit value deviation of small stones under low-dose CT images in the prior art can be effectively solved, and the accuracy and robustness of urinary surgery stone image pattern recognition are significantly improved.

The application relates to the technical field of image processing, and particularly discloses a urinary surgery endoscope image restoration method based on a scattering physical model, which comprises the following steps: acquiring an original image collected by an endoscope and performing pretreatment to generate a standardized image; determining a scattering parameter constraint domain of a total attenuation coefficient based on the optical scattering characteristics of a surgical liquid medium; extracting image statistical features from the standardized image, wherein the image statistical features comprise a dark area pixel statistical quantity and a contrast attenuation quantity, and extracting ambient scattering light brightness based on the dark area pixel statistical quantity. The method provided by the application establishes a constraint domain based on the optical characteristics of a specific surgical liquid medium, and combines the image dark area pixel statistical quantity and the contrast attenuation quantity to online calculate a comprehensive scattering parameter in the constraint domain, so that the model parameter can be adaptively updated according to the fluctuation of the turbidity state of the liquid medium in surgery.

This invention belongs to the field of medical image processing technology, specifically relating to a kidney segmentation method based on key point localization. The method includes the following steps: acquiring medical images of the kidney to be segmented and preprocessing the images; defining a set of anatomical key points specifically for kidney segmentation; predicting the position coordinates of each key point in the key point set using a model; constructing spatial topological relationships between key points based on the predicted key point coordinates and kidney anatomical zoning rules; and dividing the kidney parenchyma into regions according to the spatial topological relationships and kidney anatomical zoning rules, outputting the segmentation results for each kidney segment. This invention achieves efficient and accurate automatic kidney segmentation by precisely detecting anatomical key points and combining them with the anatomical rules of the Graves kidney segment model, outputting segmentation results with anatomical interpretability, and providing reliable technical support for preoperative planning of urological surgeries such as precise nephrectomy.

This invention relates to the field of medical device technology, specifically to a lithotripsy and aspiration device after urological stone surgery. The device includes a sheath, with a sealed cavity at the inlet end of the sheath. An operating handle is provided on the sealed cavity, and a negative pressure aspiration device is connected to one side of the sealed cavity. The key feature is that a movable tube is provided in the middle section of the sheath. The movable tube contains several moving components for lithotripsy during its reciprocating motion under negative pressure. A connecting component is fixedly connected to the end of the movable tube near the sealed cavity to drive the reciprocating motion of the movable tube to cut and vibrate the lithotripsy fragments entering the movable tube. This invention, based on negative pressure drive, simultaneously achieves lithotripsy aspiration and dynamically drives the moving components within the movable tube to agitate and break up the lithotripsy fragments through the connecting components, thereby accelerating the stone aspiration efficiency.

This invention belongs to the field of image processing technology, specifically relating to a method for enhancing the clarity of urological endoscopic video based on image enhancement, comprising the following steps: Step S110, acquiring the original endoscopic video stream, performing adaptive noise suppression and color correction preprocessing on each frame of the original RGB image in the video stream to generate a preprocessed image; Step S120, performing adaptive contrast enhancement and detail sharpening processing on the preprocessed image to generate an enhanced image; Step S130, inputting the enhanced image into a lightweight super-resolution reconstruction model for resolution enhancement processing to generate a high-resolution output image; Employing a lightweight super-resolution network model with reduced channel count and residual dense connections, supplemented by hardware acceleration and model quantization techniques, this method significantly reduces computational complexity and memory usage while ensuring image resolution enhancement, thus meeting the stringent real-time requirements of video processing in urological surgery.

This utility model relates to a guidewire for visualization and length determination in urological surgery, comprising: an inner core, wherein multiple imaging rings are arranged at certain intervals along the outer periphery of the inner core, the imaging rings being visible under X-ray fluoroscopy; and an outer sheath covering the inner core, the outer periphery of which is provided with graduation lines corresponding one-to-one with the imaging rings and axially aligned, the graduation lines being used to determine the position of the guidewire within the body cavity. After the guidewire is inserted into the body cavity, the surgeon can determine the insertion length of the guidewire based on the graduation lines, avoiding tissue damage due to excessive guidewire length. In X-ray fluoroscopy during ureteral stricture surgery, the imaging rings become visible, and by calculating the number of imaging rings in the stricture segment, the length of the stricture segment can be determined, helping the surgeon to rationally select the dilation technique and improve treatment outcomes. Moreover, this guidewire has a simple structure, is easy to operate, and is highly practical, effectively solving the problems of existing guidewires in urological surgery.

In one aspect, a drainage bag system configured to be coupled to a medical procedural table is disclosed, which comprises a drainage bag, a band attached to and supporting the drainage bag, said band having at least one protuberance positioned at least one end thereof, and at least one mounting clamp including a receiving slot configured to receive said at least one protuberance of the band. The clamp has a receiving channel configured to receive a surgical table accessory rail or an accessory mount arm thereof, and the clamp has a threaded member configured to secure the clamp to the surgical table accessory or an accessory mount arm.

The application discloses a special single-hand force-amplification type closed blood clot suction device for urinary surgery bladder flushing, relates to the field of postoperative instruments of urinary surgery, and comprises a holding main body, a liquid storage and suction unit, a bearing assembly and an integrated valve body. The holding main body is configured as a gun-shaped straight holding structure, and a mechanical torque amplification assembly is arranged on the inner side of the holding main body. The torque amplification assembly is used for converting single-hand holding force into linear driving force to form force-amplification type linkage with the liquid storage and suction unit. The holding main body comprises a gun-shaped shell, an operation trigger and a force-amplification structure. The gun-shaped shell is an integrated straight holding structure. The operation trigger and the force-amplification structure are arranged on the lower end and the inner side of the gun-shaped shell respectively. The liquid storage and suction unit is configured as a large-volume syringe. The special single-hand force-amplification type closed blood clot suction device for urinary surgery bladder flushing realizes single-hand force-amplification suction and closed circulation waste discharge through the gun-shaped holding main body and the gear and rack force-amplification mechanism, the integrated valve body and the negative pressure amplification cavity.

This invention discloses a colorimetric card for early warning drainage fluid, comprising a card body, a colorimetric area, a central hollow area, an elastic fitting structure, a light-shielding structure, a time-recording structure, an independent detection piece, and sealed packaging. The card body has a colorimetric area and a central hollow area. The colorimetric area includes a normal zone, an infection warning zone, and a severe infection zone. The elastic fitting structure is located on the back of the card body, allowing the card body to conform to the curved surface of the drainage bag. The light-shielding structure is an extension of the card body, blocking external ambient light during colorimetric analysis. The time-recording structure includes a preset time node area and a blank supplement area, meeting the flexible monitoring needs of different drainage times in various departments. The independent detection piece is independent of the card body, with a pH detection element mounted on it, and is individually packaged in sealed packaging. This invention is applicable to drainage fluid monitoring in multiple clinical departments, including general surgery, hepatobiliary surgery, neurosurgery, urology, thoracic surgery, and obstetrics and gynecology. The colorimetric unit corresponds to CMYK values, RGB values, or Pantone color codes, allowing a color difference tolerance of ±5%. The beneficial effects of this invention are: direct observation of liquid color through the drainage bag; elastic fit structure design to fit the curved surface; light shielding structure to reduce ambient light interference; standardized color measurement to ensure batch consistency; flexible time recording to meet the needs of various departments; and independent pH detection strips for flexible and convenient testing.

The utility model relates to the technical field of urological surgery instrument, a visual urethral dilator, including dilating pipe and control handle, control handle installs on the back end of dilating pipe, dilating pipe has the hollow chamber, is equipped with gas passage, water injection channel, image channel and optical fiber channel in dilating pipe, the outer peripheral wall of dilating pipe is provided with at least one dilating sac body of column shape, is equipped with gas outlet on dilating pipe, and the gas outlet is communicated with dilating sac body, the front end of dilating pipe is equipped with imaging lens, and the back end of control handle is equipped with hand -held display assembly, and imaging lens is connected with hand -held display assembly through the data line in image channel, is equipped with venting interface, water injection interface, image interface and light source signal plug on control handle, venting interface is detachably connected with gas supply component, the utility model can realize the visualization of operation area, can adjust the size of dilating sac body through gas, effectively improves the dilating effect of urethral stenosis.