10 results about "Tissue compression" patented technology

A method of operating a surgical instrument is disclosed. The surgical instrument includes an electronic system comprising an electric motor coupled to the end effector; a motor controller coupled to the motor; a parameter threshold detection module configured to monitor multiple parameter thresholds; a sensing module configured to sense tissue compression; a processor coupled to the parameter threshold detection module and the motor controller; and a memory coupled to the processor. The memory stores executable instructions that when executed by the processor cause the processor to monitor multiple levels of action thresholds and monitor speed of the motor and increment a drive unit of the motor, sense tissue compression, and provide rate and control feedback to the user of the surgical instrument.

A surgical stapling instrument includes an anvil assembly, a reload assembly, an adapter assembly, a processor, and a memory. When clamping to a target pressure, the instructions cause the surgical stapling instrument to advance the anvil assembly in relation to a staple cartridge supported on the reload assembly to a first position to define a first tissue gap within a predetermined acceptable range of tissue gaps, measure a first force of tissue compression of tissue clamped within the first tissue gap with the anvil assembly in the first position, and enter a firing mode of the surgical stapling instrument if the first force of tissue compression is within a predetermined acceptable range of tissue compression.

This invention discloses an intelligent puncture path planning method for interventional surgical robots, belonging to the field of interventional robot path planning technology. The method acquires multimodal medical images of the patient's puncture site, completes organ tissue segmentation and three-dimensional reconstruction, generates a digital twin anatomical model, and calibrates basic puncture parameters; constructs a respiratory phase tracking model, combines the basic puncture parameters to lock the respiratory cycle and real-time respiratory phase, and outputs the three-dimensional predicted coordinates of the puncture target point for a pre-set duration; acquires needle insertion force data through a six-dimensional force sensor, calculates tissue compression deformation and needle body flexible bending offset in real time, and generates a feedforward compensation vector; fuses the three-dimensional predicted coordinates and the feedforward compensation vector to generate a dynamic puncture path, performing continuous needle insertion without interruption throughout the entire process. This invention improves upon the shortcomings of traditional static path planning, which cannot adapt to respiratory displacement and tissue deformation, effectively improving puncture positioning accuracy and is suitable for minimally invasive interventional puncture surgery scenarios.

The present disclosure relates to systems and methods for detecting suture failure during surgical stapling, and provides a computer-implemented method for controlling a surgical stapling instrument, comprising advancing an anvil assembly relative to a cartridge to a first position defining a tissue gap between the cartridge and the anvil assembly and clamping tissue, the clamped tissue including a suture, measuring a first tissue compression force of the tissue clamped in the tissue gap with the anvil assembly at a first point in time, determining whether the measured first force is greater than a threshold value, in response to a determination that the first force is greater than the threshold value, measuring a second tissue compression force of the tissue clamped in the tissue gap at a second point in time, determining whether the suture has failed based on the measured second force being less than the measured first force by an amount, and stopping advancement of the anvil assembly based on a determination of suture failure.

The application relates to a self-adaptive mid-urethral suspension system based on a variable stiffness structure, and belongs to the technical field of medical devices. The suspension system comprises a sling body, the sling body is divided into a support area, an anchoring area and a transition area, and a silica gel pad is fixedly arranged on the support area; the initial stiffness of the support area is 0.1-0.8 N / mm, the load stiffness is 0.2-12.0 N / mm, the initial stiffness of the anchoring area is 0.05-0.4 N / mm, the load stiffness is 0.5-2.5 N / mm, the initial stiffness of the transition area is 0.08-0.5 N / mm, and the load stiffness is 1.0-5.0 N / mm. Through the design, the sling body is soft in a resting state to reduce tissue compression, and the stiffness is dynamically increased when abdominal pressure is increased to provide effective support, and the sling body can be self-adaptively adjusted. The application also provides a customization system, which comprises a data acquisition module, a mechanical modeling module, a data output module and a weaving module, and is used for generating a matched sling according to the pelvic floor biomechanics data of a patient.

The invention discloses a novel round-head anastomat cutting assembly which comprises a driving assembly and a cutting assembly body rotationally connected with the driving assembly, the cutting assembly body comprises a first clamp and a second clamp which are rotationally connected with each other, and a round-head part is arranged at the end, away from the rotationally connected end, of the first clamp; the device is simple in structure and reasonable in design, the round head piece is arranged at the far end of the first clamp and is in smooth collinear transition with the bottom of the clamp, round guiding in the inserting and closing process is achieved, and tissue compression friction is remarkably reduced; the first working face of the round head piece and the second working face of the second clamp keep a design gap when closed, smooth cutting is guaranteed, and the risk that tissue is damaged by clamping is reduced.

This invention discloses a fully lubricated and decompression-reducing medical surgical suture needle, belonging to the field of medical device technology. Existing smooth suture needles easily create a closed negative pressure when penetrating tissue, resulting in high needle insertion resistance and potential tissue compression damage. Traditional locally grooved suture needles cannot achieve full-length drainage, are not designed according to standard needle diameter classifications, and coated lubricated suture needles suffer from performance degradation and failure after repeated sterilization. This invention features a through-type V-shaped groove on the main force-bearing surface of the needle body, configured with four cross-sectional structures, matching the groove depth and layout angle according to the standard nominal diameter of the medical suture needle, and avoiding the needle tip puncture section and the needle tail threading section. During puncture, a small amount of tissue fluid on the surface can be drained to form a dynamic lubrication layer, breaking the puncture negative pressure and achieving fully lubricated and decompression puncture. All parameters of this invention comply with the YY / T 0166-2022 industry standard, exhibiting high structural strength, sterilization resistance, and ease of mass production. It is suitable for clinical use in multiple departments, effectively reducing intraoperative tissue damage and improving surgical suturing quality.

The present disclosure relates to a surgical clip (2) consisting of a closed ring having a first gripping section (4) and a second gripping section (6), each having a base section (5, 7) and a plurality of gripping teeth (10), and two elastically deformable hinge sections (8), the invention relates to a ring (1) comprising a plurality of gripping sections (4, 6), each of which has gripping teeth (8) located between two circumferential ends (12, 14) of the gripping sections (4, 6) and substantially parallel to each other and extending away from a respective base section (5, 7), and a hinge section (8) arranged next to the circumferential ends (12, 14) of the gripping sections (4, 6), the hinge section (8) having a bend extending towards the inside of the ring, according to the invention, the hinge section (8) and the gripping section (4, 6) are arranged such that the circumferential ends (12, 14) of the hinge section (8) and the gripping section (4, 6) at least partially face each other such that a gap is formed between the circumferential ends of the hinge section and the gripping section, the circumferential end (12, 14) of at least one of the gripping sections (4, 6), preferably two gripping sections (4, 6), has a plurality of rounded or circular pressing teeth (16, 17, 18, 19, 20) which extend in the direction of the hinge section (8), the articulation section (8) and the gripping section (4, 6) are arranged such that a gap between the articulation section (8) and the circumferential end (12, 14) of the gripping section (4, 6) takes a wave geometry or is designed in a wave shape for compressing tissue. Furthermore, the invention relates to a system for applying a surgical clip (2) at a location in a body cavity of a patient to compress body tissue.

A surgical stapler includes an anvil assembly, a reloading assembly, an adapter assembly, a processor, and a memory. When clamped to a target pressure, the surgical stapler is instructed to advance the anvil assembly to a first position relative to a staple cartridge supported on the reloading assembly, defining a first tissue gap within a predetermined acceptable tissue gap range; a first tissue compressive force is measured on the tissue clamped within the first tissue gap when the anvil assembly is in the first position; and if the first tissue compressive force is within the predetermined acceptable tissue compressive range, the surgical stapler is engaged in a firing mode.

The invention provides a bronchoscope operation training method and system for endoscopic surgery, and relates to the technical field of virtual training, and the method comprises the steps: recognizing the tissue springback time when the lens advancing speed exceeds an airway position of a preset safety interval, extracting a tissue injury high-risk section with a tissue springback time deviation value exceeding a standard range, and obtaining a tissue injury high-risk section; the high-risk section of tissue injury is visualized; extracting the time fluctuation amplitude of tissue compression and recovery of the tissue damage high-risk section, and evaluating the difference between the time fluctuation amplitude and a preset deformation response duration upper limit to obtain an initial position record of a tissue damage risk point; and according to an upper limit threshold of the propulsion speed of the airway section position, evaluating a deviation value with the current lens propulsion speed, generating a speed reduction amplitude when the upper limit threshold is lower than the current speed, obtaining a real-time speed limit threshold of each airway section, and displaying the real-time speed limit threshold on a training interface in real time. And through multi-dimensional data fusion and a real-time feedback mechanism, the skills of the trainees are remarkably improved.