5 results about "Aspiration biopsy" patented technology

This invention provides a needle for bone and soft tissue tumor biopsy, comprising a needle body, a ring-taking probe, and a pusher. The needle body includes an outer cannula and a core. A channel is formed through the inner part of the outer cannula. The core is inserted into and exits the channel during puncture. The two ends of the outer cannula are a first end and a second end, respectively. The two ends of the core are a third end and a fourth end, respectively. The third end is a needle tip that extends beyond the first end, and the fourth end is used to engage with the second end to form a handle. A depth fixation device is installed on the outer wall of the outer cannula for adsorption onto the tissue surface. The ring-taking probe is inserted into the channel of the outer cannula after the core is removed to extract tissue samples. The distal inner wall surface of the ring-taking probe has a barbed structure. The pusher is inserted into the outer cannula after sample extraction to completely push out any remaining tissue from the outer cannula. This invention can improve the accuracy and comfort of bone and soft tissue tumor biopsy, reduce the sampling failure rate during puncture, and increase the sample volume.

A kind of skin scale for operation, mainly by the transverse scale plate and longitudinal scale plate connected with each other vertically, is connected with detachable bandage by connecting block.The wire mesh structure with adjustable spacing is arranged between scale plate, including transverse and longitudinal arrangement of metal wire.Scale plate surface is provided with accurate scale, to facilitate direct measurement.Longitudinal metal wire spacing is controlled by screw adjusting mechanism, and transverse metal wire adopts magnetic type sliding fixing device to realize quick positioning.Bandage realizes quick disassembly and assembly by buckle type connector.The present application is manufactured by medical grade material, with good biocompatibility and perspective development nature.The device solves the measurement error problem caused by body position change, skin stretching and other factors in traditional operation positioning, and can provide stable and reliable body surface positioning reference.It has simple structure, convenient operation, and can be widely applied to orthopedic surgery, tumor biopsy and other medical operations requiring accurate body surface positioning.

This utility model relates to a biopsy needle, mainly used for sampling tissue and liquid samples. The biopsy needle includes a handle, a puncture needle, a sampling needle, a spiral sampling head, and a pinch handle. The tip of the puncture needle is equipped with serrated edges, which can effectively cut the tissue, reduce resistance during puncture, and improve puncture efficiency. The spiral sampling head of the sampling needle cuts the tissue by rotation, ensuring sampling accuracy and integrity, avoiding the problems of incomplete sampling or tissue damage in traditional biopsy needle operations. The spiral sampling head is threadedly connected to the needle tube, ensuring the stability and safety of the sampling head during operation. The pinch handle has anti-slip textures on its surface to enhance grip stability and is equipped with a connector for connection to a syringe or tubing for convenient liquid sampling. Furthermore, the graduated ring on the outside of the puncture needle helps the operator accurately control the puncture depth, avoiding accidental injury during operation.

A device may comprise a collection tube comprising an interior surface defining an interior space, the collection tube comprising a first end and a second end defining a luer; a tissue collection magazine received within the interior space of the collection tube; a sealing cap comprising a first end configured to receive one end of the tissue collection magazine and couple to the first end of the collection tube, the sealing cap comprising a second end configured to selectively receive one of a work element of a biopsy device, a vacuum source and a source of a fluid; and a tube-shaped mesh screen disposed within the tissue collection magazine and facing the interior surface, the tube-shaped mesh screen comprising an open end closest to the sealing cap and a closed end furthest away from the sealing cap.

The present disclosure provides systems and methods for recovering an assessable analyte potentially including DNA, RNA, an exosome or a protein from a tissue sample including a tissue core and dislodged cells. In an embodiment, the method utilizes a used biopsy needle after it has harvested a tissue core and dislodged cells are on the needle. The method includes placing the needle into a buffer solution to form a first intermediate mixture comprising the buffer solution, the tissue core, and the dislodged cells, filtering the first intermediate mixture to separate the tissue core from the first intermediate mixture, yielding the tissue core and a second intermediate mixture comprising the buffer solution and the dislodged cells, and adding a cell lysis and stabilization reagent not including formalin to the second intermediate mixture, yielding a third mixture comprising lysed dislodged cells from which the assessable analyte can be retrieved.