35 results about "Residual Tissues" patented technology

A fibrin injection mechanism for use in combination with an anastomosing and stapling attachment for an electromechanical device driver comprises a cylindrical dispensing chamber adjacent the cylindrical blade of the attachment and containing a sac filled with fibrin, a plurality of channels extending within the blade communicating between the dispensing chamber and the cutting edge of the blade, such that when the turning drive shaft is activated, the staple driver of the attachment moves forward to push a plurality of staples through corresponding staple ports and against the anvil of the attachment to pass through and staple together the target tissue, while the blade driver of the attachment moves forward to cut the unwanted residual tissue (post stapling), while a plunger (delivery) driver moves forward through the dispensing chamber to compress the sac to its break point, releasing the fluid medication into the dispensing chamber, and eventually pushing the medication though the channels to deliver the fibrin to the cutting edge of the blade and thus to the site of the newly stapled target tissue to accelerate the healing process.

This invention relates to a method and apparatus for obtaining and registering the Electrical Cochlear Response (“ECR”). Particularly, the ECR refers to the electrical activity of the auditory nerve and the intracochlear residual tissue located in the neighborhood of an intracochlear stimulation electrode, when an external sound is presented to a Cochlear Implant user, human or animal. Applicants recognize that an ECR can be thought of as a far-field electrical potential registered on the scalp of an implanted patient. Applicants, through their method and apparatus, can extract that potential from the patient's spontaneous electroencephalographic activity (EEG) and measure it by using an averaging algorithm. The Electrical Cochlear Response can be applied for adaptation, calibration, performance evaluation and failure detection of the Cochlear Implant of the implanted patient. Also Applicants' method can be applied to estimate the audiometric thresholds of the Cochlear Implant even without the implanted patient's knowledge.

The present invention provides a method for contrast-enhanced ultrasound imaging and a region detection and imaging method for contrast-enhanced images. The region detection method for contrast-enhanced images includes: acquiring tissue signals and contrast signals in the process of contrast-enhanced ultrasound imaging; Perform preprocessing respectively; compare the preprocessed tissue signal and contrast signal; segment the image formed after comparison processing into contrast agent action area, tissue residual action area and noise action area by means of threshold segmentation; contrast contrast image The corresponding positions on , are marked as contrast agent area, tissue residual area and noise area, respectively. On the one hand, the invention greatly improves the CTR of contrast-enhanced ultrasound images, which is beneficial to clinical observation; on the other hand, it enhances the signal of the contrast agent, so that the contrast dose injected during contrast-enhanced ultrasound can be greatly reduced, and the inspection cost is effectively reduced.

The invention relates to the field of preparation of biological specimens and in particular to a method for preparing an otolith sample for early life history of fish. The method comprises the following steps: dripping a corrosive solution under a microscope to expose otolith; cleaning the exposed otolith for many times by using purified water, and removing the liquid and / or residual tissues obtained after cleaning; drying the otolith at room temperature, embedding the otolith by using a mounting medium, and drying after flatly laying the mounting agent; and performing grinding treatment before later otolith mounting in the early life history of fish. According to the method provided by the invention, the otolith obtaining difficulty in the stage of the early life history of fish is reduced, even if the sample tissues are not transparent, the method disclosed by the invention can also be used, and the prepared specimen is cleaner and fewer in impurities and contributes to long-term storage of specimens.

The invention relates to a bipolar radiofrequency intestinal tract anastomat and a working method. The anastomat comprises a near-end structure, a far-end structure and a radiofrequency energy generator, wherein the near-end structure is placed at the near end of an intestinal tract; the far-end structure is divided into a head portion and a handle portion, is located at the far end of the intestinal tract, and connects a positive pole with a negative pole of the radiofrequency energy generator through a guide wire inside the handle portion; and after the near-end structure is in butt joint with the far-end structure, the far-end structure becomes the negative pole, and a metal circular ring of the near-end structure is the positive pole. The intestinal tract is respectively sleeved on the near-end structure and the far-end structure, a portion needing anastomosis is collected to be attached to the metal circular ring of the near-end structure and a metal circular ring of the far-end structure, after sleeving, the metal circular ring of the near-end structure and the metal circular ring of the far-end structure form a circuit with the positive pole and the negative pole, intestinal tract anastomosis is completed after energization, after electricity is cut off, an internal push-type cutter is triggered through a switch of the handle portion, and residual tissue in the intestinal tract is cut off to guarantee smoothness of the intestinal tract. The anastomosis portion is continuous, operation time is short, no foreign matters are left in the intestinal tract after an operation, and safety of the anastomosis process is guaranteed.