8 results about "Tissue handling" patented technology

A tissue treating device includes a handle with an actuator; a control cable; and a cap. The cap includes a mounting structure removably coupled in an operative configuration on a distal end of an insertion device. The cap includes a part movably coupled to the structure for movement between a retracted position in which a distal end of the part is received over the distal end of the device and an extended position in which a distal end of the part extends distally beyond the distal end of the device. The part includes a wall defining an internal channel so that, when the part is in the extended position, the wall surrounds a space contiguous to the distal end of the device. The part is coupled to a distal end of the cable so that, actuation of the actuator moves the part between the extended and retracted positions.

Surgical tool systems and methods of use thereof for performing endoscopic surgical procedures, which systems include a handpiece and a surgical accessory which detachably connects to the handpiece. The surgical accessory has a distal end which defines a cutting head incorporating two different types of tissue-treating areas.

The invention relates to the technical field of medical apparatuses and instruments, and discloses an angle-adjustable tumor ablation knife, which comprises a wrist wearing assembly used for stably wearing an instrument on a wrist; the rotating rope wheel driving assembly is mounted on the wrist type wearing assembly; the wrist wearing component is provided with an electric knife pen main body for cutting at a specified angle in a deep tissue operation or an electric coagulation forceps main body for hemostasis and tissue treatment in the operation. According to the angle-adjustable tumor ablation knife, by means of the wrist wearing assembly and the rotary driving mechanism, a doctor can more conveniently adjust the angle of the electric knife pen and the angle of the electric coagulation forceps, the arm does not need to be greatly moved, accurate operation can be conducted in a narrow operation space, the success rate of an operation is increased, the burden of the hand is relieved through the wrist wearing mode, and the operation efficiency is improved. A doctor can stably operate the instrument for a long time, and operation errors caused by hand fatigue are reduced.

The invention relates to an intravascular rotary cutting device which comprises a sheathing canal, a rotating shaft, a tool bit assembly and a handle. The cutter head assembly comprises a first rotary cutter and a second rotary cutter, the second rotary cutter is provided with an arched structure, the arched height of the second rotary cutter can be increased or decreased under the action of external force, so that the second rotary cutter has a variable cutting diameter in a working state, the cutting diameter is not restrained by the inherent size of the sheathing canal any more, and the minimally invasive approach is kept while the cutting diameter is increased. A larger effective lumen and a better tissue treatment capability can be realized; in a non-working state, the device can be retracted into the sheath tube, so that the damage to the blood vessel is reduced; the handle comprises a shell, a rotary cutting driving assembly and a telescopic driving assembly; the near end of the sheathing canal or the shell is of a detachable sectional type structure, by means of the design of the detachable sectional type sheathing canal or the shell, the cutter head assembly and the rotating shaft can be independently withdrawn, meanwhile, a complete instrument channel is reserved, follow-up examination or treatment instruments can be directly introduced, and the whole system does not need to be completely withdrawn from the human body.

A tissue holder assembly for receiving and imaging severed tissue samples from a biopsy device includes a base and a cover removably attached to the base to define an interior, the base having one or more vacuum lumens in communication with the interior, the assembly further including a tissue tray removably and rotatably mounted in the interior, wherein a bottom of the tissue tray comprises a filter material that allows fluid to pass through. The cover has a tissue sample entry port formed therein and configured direct severed tissue samples and fluid aspirated therethrough into a respective tissue storage compartment of the tissue tray positioned under the tissue sample entry port, wherein the base includes a raised surface underlying at least a portion of the tissue tray circumferentially spaced apart from the tissue sample entry port when the cover is attached to the base.

X-ray images generated by a biopsy tissue handling device are selectively modified to emphasize regions of interest and de-emphasize or eliminate image regions that are distracting, impair viewing attention, and / or cause eye strain. An image processor performs an image mask based on the geometry of a portion of a specimen tray that includes a storage compartment having a tissue specimen. A compartment mask is performed on a portion of an X-ray image that depicts the storage compartment including the tissue specimen. The compartment mask boundary substantially corresponds to the outline of the compartment. A partial structure mask is performed on a portion of the X-ray image that depicts the specimen tray and a corresponding wall of the storage compartment. The partial structure mask boundary extends along a corresponding length and partially through the corresponding wall of the specimen tray.

This invention discloses a deep learning-based surgical quality assessment method and system, relating to the field of medical information. The method includes: acquiring preoperative three-dimensional images and generating a surgical operation space baseline map using a first deep neural network; continuously acquiring real-time instrument pose data and high-definition video frame sequences of the surgical area tissue during surgery; using a spatiotemporal attention mechanism for dynamic registration to construct an instrument-tissue interaction spatiotemporal feature set; calculating instrument operation standardization scores and tissue processing accuracy scores using a second deep neural network; acquiring postoperative physiological recovery indicators; inputting the two scores and indicators into a causal inference model to quantify their respective marginal contributions and generate a comprehensive quality assessment index; and outputting a graded assessment conclusion based on the comparison results of this index with multi-level thresholds. This invention achieves an objective, interpretable, and clinically predictive quantitative assessment of surgical quality by integrating data from the entire chain of preoperative planning, intraoperative operation, and postoperative recovery.

A system for analysis of biopsy samples includes a tissue sample transport mechanism linking a biopsy sample excision tool to a tissue sample holder disposed in a staging area of an analysis unit. The tissue sample is automatically transported from the excision tool to the specimen holder, where the tissue sample is analyzed in the staging area of the analysis unit. The transport mechanism may include tubing and a vacuum source. The tissue sample holder may be configured to slow or temporarily stop a tissue sample for individual analysis, or collect multiple tissue samples for analysis as a group. A tissue sample sorting mechanism may be employed that allows separation of specimens that can be correlated to the analysis.