20 results about "Biopsy device" patented technology

This application relates to a valve body mechanism and a biopsy device, including a main valve, a push valve, a retraction valve, a manifold assembly, and a gas storage assembly. The main valve includes a main valve body, a first air inlet, and a first air outlet. The push valve includes a push valve body, a second air inlet, and a second air outlet. The retraction valve includes a retraction valve body, a third air inlet, and a third air outlet. The manifold assembly includes a first pipe connected to the first air outlet, a second pipe connected to the first pipe and the second air inlet, and a third pipe connected to the first pipe and the third air inlet. By providing a first gas storage bladder on the push valve body and a second gas storage bladder on the retraction valve body, carbon dioxide gas can be stored, increasing the capacity of carbon dioxide gas in the push valve and the retraction valve. This results in secondary pressurization when releasing carbon dioxide gas, increasing the instantaneous impact force of the second and third air outlets, thereby improving the driving force of the biopsy device, ensuring sampling effect, and enabling rapid retraction.

The application relates to the field of medical devices and provides a biopsy device suitable for an interventional operating room, which comprises a shell, a first cavity and a second cavity are arranged in the shell, a side wall of the shell is communicated with a side wall of the second cavity through a second channel, the side wall of the shell is communicated with the side wall of the second cavity through two or more first channels, an adsorption mechanism is arranged in the first cavity, a transmission mechanism is arranged in the second cavity, a temporary storage mechanism is arranged in the first channel, and a cutting mechanism is arranged on the shell. The application can conveniently sample multiple biopsy tissues of different parts of the human body, does not need to use a cutting knife, improves the operation efficiency and convenience, temporarily stores different biopsy tissues, prevents the biopsy tissues from falling, and prevents the biopsy tissues from being polluted.

A core needle biopsy device includes a needle assembly, a cutter drive assembly, a piercer drive assembly and an actuation mechanism. The needle assembly includes a piercer and a hollow cutter. The piercer includes a sharp distal tip and a notch proximal to the distal tip. The piercer is slidably disposed within the cutter to sever a tissue sample into the notch. The cutter drive assembly is configured to move the cutter. The piercer drive assembly is configured to move the piercer. The piercer drive assembly includes a lead screw configured to move both a portion of the cutter drive assembly and a portion of the piercer drive assembly. The actuation mechanism is configured to engage bot the cutter drive assembly and the piercer drive assembly to initiate firing of the piercer and the cutter sequentially using the cut drive assembly and the piercer drive assembly.

The actuator device (30) comprises first, second and third actuators (321, 322, 323) operably connected to a biopsy needle arrangement (20) comprising a needle (21) inside a sheath (22). The needle arrangement has a closed state in which a tip portion (23) abuts the needle sheath and an open state in which the tip portion extends from a distal end of the needle sheath. The first actuator pushes the needle distally relative to the needle sheath in a sliding direction x by a first distance d1 at which the needle arrangement is in its open state. The second actuator pushes the needle sheath distally relative to the needle in the sliding direction x by a second distance d2. The third actuator pushes the needle sheath distally relative to the needle in the sliding direction x by a third distance d3, where d3 is smaller than d2, at which the needle arrangement is in its closed state.

A medical image acquisition apparatus including: a biopsy apparatus; an imaging table that is used to capture an image of a living body disposed on an imaging surface with an imaging apparatus; a projector that projects the image; and at least one processor, wherein the processor performs control of projecting relevant information associated with each execution stage of a biopsy that is performed on the living body using the biopsy apparatus, from the projector toward the imaging surface of the imaging table for each execution stage.

1. The name of the design product: continuous biopsy device under digestive endoscope. 2. The use of the design product: for continuous biopsy device under digestive endoscope. 3. The design features of the design product: in shape. 4. The picture or photo that best indicates the design features: perspective view.

The application discloses a puncture biopsy device and belongs to the technical field of medical devices. In the puncture biopsy device, a positioning assembly is arranged, the relative positions of a first component and a second component can be positioned by the positioning assembly, the first component and the second component can move towards a third component together, a sheath tube is connected with the second component, the sheath tube can move together with the second component, and a puncture needle can be connected with the first component, so that the first component can drive the puncture needle to move when the first component moves, the puncture needle can drive the sheath tube to pass through tissues when the puncture needle punctures, the puncture needle can be withdrawn, and the sheath tube can be left in the tissues, so that subsequent surgical treatment can be performed, and damage to the tissues is reduced.

This invention discloses a carotid artery plaque biopsy device based on interventional angiography, comprising a fusion catheter, the distal end of which is fixedly connected to one end of a biopsy probe. A freely rotatable transmission tube is located within the fusion catheter. A biopsy blade and a drug-loaded balloon coated with a drug layer are located on the side wall of the distal end of the transmission tube. The drug-loaded balloon is connected to a balloon-pressurized catheter. A biopsy window is formed on the outer wall of the biopsy probe. The biopsy blade and the drug-loaded balloon are located within the biopsy probe at positions corresponding to the biopsy window. The transmission tube is rotatably connected to a limiting structure that restricts the axial movement of the transmission tube. The limiting structure is fixed to the biopsy probe. A biopsy filter is covered and connected to the distal end of the biopsy probe. A contrast marker is provided on the outer side of the distal end of the biopsy probe. This invention's device removes carotid artery plaques based on vascular intervention, eliminating the need for open surgery and significantly reducing the risks of infection, bleeding, and carotid artery rupture. The carotid artery plaque is treated using a drug-loaded balloon.

The application belongs to the technical field of medical appliances, in particular to a skin loop-cut biopsy device for pathological detection, a supporting ring is fixedly arranged on the support, a rotating ring is arranged in the supporting ring, a guide assembly for guiding the rotating ring is arranged in the supporting ring, a receiving groove is fixedly arranged on the rotating ring, a strip-shaped block is arranged in the receiving groove, slide grooves are symmetrically arranged in the strip-shaped block, a sliding block is arranged in the slide groove, a guide rod is fixedly arranged in the slide groove, and a cutting knife is arranged on the sliding block. The skin loop-cut biopsy device for pathological detection is convenient for adjusting the sampling area through the arranged threaded rod and sliding block, the working of the servo motor drives the threaded rod to rotate according to the sampling area of the skin of the patient, the threaded ring moves when the threaded rod rotates, the position of the sliding block is adjusted when the threaded ring moves, and the position of the cutting knife is adjusted, so that the skin of different areas can be loop-cut and treated, and the flexibility is improved.

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.

A biopsy device includes a manifold having a first passageway, a second passageway, and a third passageway. A fluid cartridge is operably coupled to the manifold and provides fluid to the manifold. A cutting mechanism is operably coupled to the manifold, and includes a cutting cannula, a sample notch cannula, and a sample storage area. A handheld member is slidably coupled to the manifold, and manual translation of the handheld member directs fluid between the first passageway, the second passageway, and the third passageway.

This application relates to a valve body mechanism and a biopsy device, including an advance valve, a main valve, and a retraction valve. The main valve includes a main valve body, a main valve core, and a first air inlet. The main valve body is also provided with a first connecting pipe that can communicate with the interior of the main valve body. The advance valve includes an advance valve body, an advance valve core, a second air inlet, and a first air outlet. The advance valve body is also provided with a second connecting pipe that communicates with the second air inlet. The retraction valve includes a retraction valve body and a third air inlet. The retraction valve body is also provided with a third connecting pipe that can communicate with the third air inlet. The first connecting pipe is connected to the second connecting pipe and the third connecting pipe. Carbon dioxide gas in the first connecting pipe can enter the interior of the advance valve body through the second connecting pipe and the second air inlet, and can also enter the interior of the retraction valve body through the third connecting pipe and the third air inlet. This application eliminates the manifold assembly, greatly avoiding the waste of cooling capacity and ensuring sampling effect.

This application relates to a high-efficiency cryoablation needle and an intelligent control cryogenic biopsy device. By replacing the attached probe with a coiled cryoablation needle, the refrigerant can directly pass through the coil inside the needle tube and freeze the cryocapsule at the end of the coil. The immediately frozen cryocapsule can continuously freeze the needle tip, allowing the needle tip to immediately form a cryogenic environment for cryogenic ablation without the need for pre-cooling. The refrigerant passes through the bulbous structure at the end of the coil, freezing the cryocapsule. The surface of the bulbous structure cools rapidly; essentially, the refrigerant enters from the refrigerant inlet pipe and exits from the refrigerant outlet pipe, cooling immediately within 0.05 seconds. In use, the refrigerant of the intelligent control cryogenic biopsy device enters the coil after passing through its valve assembly and is cooled by the elliptical bulbous structure of the coil, allowing for immediate ablation without waiting.

Disclosed are an angle adjustment mechanism, a biopsy device, and an operating method. The angle adjustment mechanism (210) comprises: a first tube (1), a second tube (2), and a control member (3). The control member (3) passes through the first tube (1) and the second tube (2). A distal end of the control member (3) is connected to an end tool (220), and is configured to drive the end tool (220) and the second tube (2) to rotate relative to the first tube (1), and drive the end tool (220) to deviate from a rotation axis of the second tube (2) relative to the second tube (2). The biopsy device (100) comprises the first tube (1), the second tube (2), and the control member (3). The control member (3) comprises two control wires (311, 312) intersecting at a first position, and a limiting structure (53). The limiting structure (53) is located on a proximal side of the first position and between the two control wires (311, 312), and is configured to abut against the two control wires (311, 312).

The biopsy device includes an elongated housing that houses a stylet hub and a cannula hub. Each of the stylet hub and the cannula hub is movable between a proximal ready-to-operate position and a distal fired-out position. Each of the stylet hub and the cannula hub has a strike configured to hold its respective hub in its proximal ready-to-operate position. A ready-to-operate member is movably mounted in the housing and is configured to move the stylet hub and the cannula hub to their respective proximal ready-to-operate positions. The housing includes a first flexible wall portion, and when the stylet hub is in the distal fired-out position and the cannula hub is in the proximal ready-to-operate position, a portion of the stylet hub is positioned between the cannula strike and the first flexible wall portion, allowing the cannula hub to be released from its proximal ready-to-operate position by the action of the first flexible wall portion.

The application relates to the technical field of appliances, in particular to a precise positioning bone marrow biopsy appliance, which comprises a support, a rotating frame, a rotating cylinder and a bone marrow puncture needle; the rotating frame is installed on the support; the bone marrow puncture needle is slidably connected in the rotating cylinder; the rotating cylinder is rotationally connected with the rotating frame; the upper end of the support is in an arc shape, a sliding block is slidably connected to the upper end of the support; a fixing bolt is threadedly connected to the sliding block; the rotating frame is fixedly connected to the sliding block; the bone marrow puncture needle is limited by the rotating cylinder, so that the bone marrow puncture needle does not shake when rotating leftward and rightward, so that when the bone marrow puncture is performed, the puncture path cannot be changed, additional pressure and damage to the bone are avoided, and the risk of bone fracture or fracture is avoided.

A biopsy device includes a biopsy probe assembly having a cutter sleeve, a vacuum sleeve, and a stylet sleeve arranged coaxially. The vacuum sleeve is positioned inside the stylet sleeve to define a first intermediate lumen. The stylet sleeve is positioned inside the cutter sleeve to define a second intermediate lumen. The stylet sleeve is movable relative to the vacuum sleeve and the cutter sleeve between an extended position and a retracted position. The stylet sleeve has a longitudinal vent slot. A seal has a proximal sealing portion. When the stylet sleeve is moved from the extended position toward the retracted position, the longitudinal vent slot is positioned longitudinally below the proximal sealing portion to open a sealed bypass path through the proximal sealing portion to establish a first air path at the first intermediate lumen and a second air path at the second intermediate lumen.

The utility model relates to a biopsy needle, biopsy handle and biopsy device, the handle shell of biopsy needle and biopsy handle is connected with each other, and the inner cutter tube moves in the axial direction in the puncture tube to open or close the sampling window, in the process of moving of the inner cutter tube relative to the puncture tube, when the identification mark on the inner cutter tube and the first window on the needle shell are diametrically opposite, the identification mark opposite the first window is recognized to the recognition element, thereby making the identification signal of recognition element can reach the identification mark to be recognized by the recognition element, and further can accurately draw whether the inner cutter tube reaches the position of completely closed window relative to the puncture tube, and then can accurately carry out the positioning calibration, and the calibration precision is high, and the situation that the retreat is deadlocked will not appear, and reliable normal use can be carried out.