10 results about "Wound edge" patented technology

The present application relates to the technical field of medical image analysis, in particular to a burn area automatic evaluation method based on AI image recognition, comprising the following steps: analyzing image gradient sequence, screening for inflection points and encoding texture order, analyzing brightness difference to obtain attenuation trend to generate degradation structure, comparing tension mutation and convergence direction, screening for bridging points, identifying color difference density inversion to construct boundary point set, analyzing curvature difference to perform area expansion correction, in the present application, the texture order identifier is constructed by analyzing the pixel gradient sequence in the original image, the regional damage intensity judgment mechanism is established by combining the brightness change and the thermal damage signal difference, the wound edge point structure is derived by the tension direction trend, the continuous boundary range is identified by combining the color difference density, the area expansion comparison and correction are carried out by fusing the curvature difference, the systematic evaluation logic from boundary recognition to area mapping is established, the damage range is accurately delimited and the body surface characteristics are matched, and the precision evaluation and regional expansion of the burn area are realized.

This invention relates to the field of oral medical monitoring technology, specifically a postoperative oral bleeding risk prediction and intervention system based on multimodal data fusion. The system includes: collecting and standardizing preoperative coagulation function test data, intraoperative wound image data, and postoperative continuous physiological sign monitoring data; extracting three parameters from the intraoperative wound image: the proportion of exposed blood vessels, the density of tissue bleeding points, and the state of wound edge contraction; mapping these three parameters to the preoperative coagulation function data to construct a bleeding risk feature vector; training a bleeding risk classifier using this vector to obtain a risk prediction model; and inputting real-time postoperative physiological sign data into the model to obtain a bleeding risk probability value and trigger corresponding intervention measures. This system can accurately capture the real-time state of the wound, integrate multi-dimensional data, improve the accuracy of bleeding risk prediction, trigger timely intervention, and reduce postoperative bleeding complications.

The application discloses application of Neuritin in preparation of a medicine for promoting healing of a diabetic wound. The application proves for the first time through experiments that Neuritin expression in wound edge tissue and surrounding sensory neurons is significantly up-regulated after skin damage, and Neuritin expression is significantly down-regulated under a diabetic condition. By constructing a nervous system conditional knock-out and a sensory neuron specific knock-out Neuritin mouse, it is proved that wound healing is significantly delayed after Neuritin is knocked out. By means of spinal cord site injection of an AAV virus to overexpress Neuritin in a DRG and skin electroporation technology to locally overexpress Neuritin in the skin, it is proved that overexpression of Neuritin can significantly promote wound healing of type 1 and type 2 diabetic mice. The application provides a brand-new target and strategy for treatment of a diabetic refractory wound, and has a good clinical transformation prospect.

This invention discloses a device for repairing large spinal cord wounds, relating to the field of surgical instruments. The device includes a retractor, multiple slide rails, a support member, and a spiral elastic suture. The slide rails are fixedly positioned outside the retractor within the incision. The end of the support member is optionally positioned within the slide rails. The spiral elastic suture is placed above the support member, and its end has a connecting end that passes through the support member and connects to a needle. This device integrates multiple functions, including incision retraction, suture support, and elastic traction alignment, overcoming the limitations of single instruments and eliminating the need for additional auxiliary instruments. The support member can be selectively mounted within the slide rails with adjustable spacing, adapting to the suturing needs of different locations within the spinal cord wound. The elastic recovery characteristics of the spiral elastic suture enable automatic traction alignment of the wound edges, effectively improving suture tightness and reducing the risk of postoperative complications.

The present application relates to the technical field of image recognition, in particular to a data processing method and system based on wound image recognition, comprising the following steps: collecting signals to construct a multi-dimensional photoelectric pixel matrix, calculating global light distribution weight and generating a standardized tissue feature map, extracting deep necrotic texture vectors and granulation metabolic activity index, generating an infection probability distribution matrix, constructing an irregular geometric contour set and a wound edge shrinkage coefficient, and generating adaptive diagnosis and treatment intervention instructions and a final wound evaluation report through a healing trend prediction model.In the present application, by constructing a local texture feature matrix and its difference mapping with a spatial geometric vector, the specific physiological state weight is adaptively calculated, the interference of environmental background noise on the edge recognition process is eliminated, the calculation accuracy of the target region boundary is improved, and the high reliability of the final classification data output under variable light conditions is ensured.

This invention belongs to the field of medical device technology. It discloses a multi-axis stretchable wound zipper device and its manufacturing method. The device includes an upper dressing encapsulation layer, a lower dressing encapsulation layer, shape memory alloy shrinking units, a serpentine flexible conductive layer, an elastomer encapsulation layer, a flexible microcontroller unit, and a power supply unit. The shape memory alloy shrinking units are arranged in a regular hexagon, possessing six degrees of freedom to stretch freely along six axial directions spaced 60 degrees apart, to match wounds of different shapes, and shrink axially under electrothermal drive to achieve wound edge closure. The manufacturing method includes laser cutting of nickel-titanium shape memory alloy sheets, serpentine flexible conductive layers, transfer of serpentine conductive layers, and layered encapsulation and etching. This invention can adapt to wounds of various complex shapes such as linear, triangular, rectangular, and circular, achieving programmable personalized mechanical shrinkage, with fast response speed, low driving voltage, simple operation, and significantly promoting wound healing.

The application relates to the technical field of oral surgery, and discloses an oral and maxillofacial surgery postoperative oral nursing device, which comprises a mounting cover, a connecting plate and a blocking plate fixedly connected to one side of the mounting cover, one side of the connecting plate is fixedly connected with a liquid storage cylinder, the inside of the mounting cover is provided with a liquid injection assembly, the inside of the connecting plate is provided with a driving assembly, the liquid injection assembly comprises a liquid injection pipe and a suction pipe fixedly connected to one side of the blocking plate, through the liquid injection assembly, the liquid injection head is moved from the two sides of the wound edge to the center position of the wound, a large flow is injected into the wound edge area, a small flow is injected into the center area of the wound, the suction flow of the suction pipe can be correspondingly increased and reduced synchronously, the extraction of the nursing liquid is matched with the liquid injection, the excessive accumulation of the nursing liquid caused by the increased flow is avoided, the soaking damage of the nursing liquid residue to the wound is reduced, and the matching and flexibility of the oral wound liquid injection are improved.

This invention discloses a cross-suture device and its method of use, relating to the field of medical device technology. The suture device includes at least two suture components arranged crosswise and marked with different colors, and an adjustment structure. Each suture component contains biocompatible sutures with multiple fixed points spaced apart, anchored to the wound edge by titanium clips. The adjustment structure is integrated into the handle, allowing adjustment of the suture contraction force and traction direction, and features a locking mechanism to prevent rebound. During use, the fixed points are first anchored, and then the sutures are tightened step-by-step according to the color markings, ensuring uniform wound healing and reinforcement. This invention employs cross-segmented sutures to disperse wound tension, significantly reducing the amount of titanium clips used; the color markings facilitate precise operation, shorten surgical time, eliminate submucosal dead space, and reduce the risk of postoperative complications. It is suitable for closing ESD wounds with a diameter >20mm or irregular shapes.