180 results about "Biopsy needles" patented technology

A system whereby a magnetic tip attached to a surgical tool is detected, displayed and influenced positionally so as to allow diagnostic and therapeutic procedures to be performed rapidly, accurately, simply, and intuitively is described. The tools that can be so equipped include catheters, guidewires, and secondary tools such as lasers and balloons, in addition biopsy needles, endoscopy probes, and similar devices. The magnetic tip allows the position and orientation of the tip to be determined without the use of x-rays by analyzing a magnetic field. The magnetic tip further allows the tool tip to be pulled, pushed, turned, and forcefully held in the desired position by applying an appropriate magnetic field external to the patient's body. A Virtual Tip serves as an operator control. Movement of the operator control produces corresponding movement of the magnetic tip inside the patient's body. Additionally, the control provides tactile feedback to the operator's hand in the appropriate axis or axes if the magnetic tip encounters an obstacle. The output of the control combined with the magnetic tip position and orientation feedback allows a servo system to control the external magnetic field by pulse width modulating the positioning electromagnet. Data concerning the dynamic position of a moving body part such as a beating heart offsets the servo systems response in such a way that the magnetic tip, and hence the secondary tool is caused to move in unison with the moving body part. The tip position and orientation information and the dynamic body part position information are also utilized to provide a display that allows three dimensional viewing of the magnetic tip position and orientation relative to the body part.

A system whereby a magnetic tip attached to a surgical tool is detected, displayed and influenced positionally so as to allow diagnostic and therapeutic procedures to be performed rapidly, accurately, simply, and intuitively is described. The tools that can be so equipped include catheters, guidewires, and secondary tools such as lasers and balloons, in addition biopsy needles, endoscopy probes, and similar devices. The magnetic tip allows the position and orientation of the tip to be determined without the use of x-rays by analyzing a magnetic field. The magnetic tip further allows the tool tip to be pulled, pushed, turned, and forcefully held in the desired position by applying an appropriate magnetic field external to the patient's body. A Virtual Tip serves as an operator control. Movement of the operator control produces corresponding movement of the magnetic tip inside the patient's body. Additionally, the control provides tactile feedback to the operator's hand in the appropriate axis or axes if the magnetic tip encounters an obstacle. The output of the control combined with the magnetic tip position and orientation feedback allows a servo system to control the external magnetic field by pulse width modulating the positioning electromagnet. Data concerning the dynamic position of a moving body part such as a beating heart offsets the servo systems response in such a way that the magnetic tip, and hence the secondary tool is caused to move in unison with the moving body part. The tip position and orientation information and the dynamic body part position information are also utilized to provide a display that allows three dimensional viewing of the magnetic tip position and orientation relative to the body part.

A clip and a bioabsorbable marker are employed to mark a biopsy site. The former provides a permanent marker that is clamped onto tissue and that cannot migrate from the site over time. The latter is gradually bioabsorbed over time but the time may vary widely from weeks to months. In most embodiments, the clip and marker are integrally formed with one another at the time of manufacture. In one embodiment, the clip and marker are independently made but are joined to one another during the site-marking process. The markers are deployed by core biopsy needles of the type employing a vacuum, of the type that does not employ a vacuum, and by coaxial biopsy needles.

A training aid for teaching needle biopsy of the human breast. The inventive methods use breast models having lifelike properties providing accurate tactile sensation during palpation of the breast that enable a trainee to learn to locate modeled internal lesions and similar tissues in the breast. These same properties allow learning of tactile sensations indicating relative position and motion of biopsy needles during biopsy needling procedures. To facilitate tactile learning, the breast model includes an opaque skin that blocks the trainee view of a breast cavity containing modeled lesions, ensuring that needling procedures are performed based solely on "feel". The present invention also includes alternative training methods using a second breast model that is sufficiently transparent to allow viewing of modeled lesions from any relative position. The present invention includes training systems incorporating breast models and viewing stands and methods of training using these aids.

The Lorentz-Active Sheath (LAS) serves as a conduit for other medical devices such as catheters, balloons, biopsy needles, etc. The sheath is inserted through a vein or other body orifice and is guided into the area of the patient where the operation is to be performed. The position and orientation of the LAS is tracked via an industry standard position detection system which senses electrical signals that are emitted from several electrodes coupled to the LAS. The signals received from the LAS are used to calculate an accurate and reliable assessment of the actual position of the LAS within the patient. The electrode signals also serve to create a reference frame which is then used to act as a motion compensation filter and fiducial alignment system for the movement of the LAS-hosted medical tool.

A tilted needle biopsy assembly is provided for mounting on an x-ray system. Because the biopsy needle is angied relative to at least one of the detector and the x-ray source, x-ray imaging may be performed during the biopsy procedure without interference by the biopsy device. The angled biopsy needle additionally allows improved access to the axilla and chest wall of the patient. The stereotactic biopsy device of the present invention may be coupled to any x-ray system, whether upright or prone, including but not limited to mammography systems, tomosynthesis systems, and combination mammography/tomosynthesis systems. The system flexibly supports the use of any mode of image capture (i.e., scout, two dimensional mammogram, three-dimensional reconstructed volume) for either or both target visualization and target localization. With such an arrangement, a needle biopsy assembly having improved patient coverage is provided for use with a variety of different x-ray imaging platforms.

The instant invention describes a biopsy instrument which is useful in removal of tissue or fluid samples from a body, such as bone and soft tissue biopsy procedures. The biopsy instrument is an improvement over other biopsy needles currently in use in that the biopsy instrument according to the instant invention can be used to reduce the pain associated with specimen removal procedures. The biopsy instrument generally comprises an outer cannula and an inner medical probe member. The inner medical probe member is constructed and arranged to contain one or more fluid dispensing members for dispensing a fluid which are in fluid communication with a fluid dispensing device. In this arrangement, the user has the ability to continually inject fluids, such as anesthetizing agents, directly at or near the spot of specimen removal, without the need to remove the surgical instrument or use a separate fluid injecting needle.

One or more devices, systems, methods and storage mediums for performing common path optical coherence tomography (OCT) with a controlled reference signal and efficient geometric coupling are provided. Examples of such applications include imaging, evaluating and diagnosing biological objects, such as, but not limited to, for Gastro-intestinal, cardio and/or ophthalmic applications, and being obtained via one or more optical instruments, such as, but not limited to, optical probes (e.g., common path probes), common path catheters, common path capsules and common path needles (e.g., a biopsy needle). Preferably, the OCT devices, systems methods and storage mediums include or involve a reference reflection or a reference plane that is at least one of: (i) disposed in the collimation field or path; and (ii) is perpendicular (or normal) or substantially perpendicular (or substantially normal) to light propagation. One or more embodiments may include beam shaping optics to properly image luminal or other hollow structures or objects.

The invention provides a bendable biopsy and a biopsy system. The bendable biopsy needle comprises a sheath, a needle body and a traction part, wherein a bendable section is arranged at a far end of the sheath, a far end of the traction part is connected with the bendable section, the traction part moves in the axial direction of the sheath to drive the bendable section to bend, the needle body ismovably mounted in the sheath in a penetrating manner, a far end of the needle body is a hollow structure, the far end of the sheath can be bended at different degrees by adjusting the bendable section at the far end of the sheath, so that the far end of the sheath can smoothly enter tiny and bent human cavities, and the far end of the needle body can enter these tiny and bent human cavities along the far end of the sheath to obtain biopsy tissue. Besides, the bending following section at the far end of the needle body is provided with a bending orientation structure, so that the bending following section can bend in the same direction along with the bendable section, the side where the needle point is located and the side, bending under the drive of the traction part, of the bendable section are located on the same side relative to the axis of the needle body, and the needle point can be prevented from piercing the inner wall of the sheath.

Biopsy needles equipped with fibres (20) allow tissue inspection to diagnoses. In order to allow detailed inspection side looking fibres should also be integrated around the needle. These fibres might be embedded in a transparent medium (18) to avoid direct contact of the sharp edges of the fibre to the tissue. A biopsy needle having such embedded fibres as well as a method for manufacturing said biopsy needle, based on curable transparent liquid, is provided by the invention.

The invention discloses a puncture biopsy needle and a method for applying the same. The puncture biopsy needle and the method have the advantages that the shortcomings of inconvenience in carrying out hemostasis on biopsy puncture positions and deterioration of the biopsy accuracy due to the fact that that existing biopsy needles are inconvenient to operate during puncture and acquired tissue slices can be easily mixed with tissues of other positions can be overcome by the aid of the puncture biopsy needle and the method; a medicine bag which is in the shape of an annular sheet is arranged onthe inner wall of an outer needle tube and is close to the front end of the outer needle tube, a stay is connected onto the medicine bag, the medicine bag can be torn by the aid of the stay, the stayis connected onto an inner needle and is far away from the front end of the inner needle, and the medicine bag is filled with hemostatic liquid; the puncture biopsy needle is convenient to operate inintegral use procedures, acquired tissue slices can be prevented from being mixed with tissues of other positions, and accordingly the biopsy accuracy can be guaranteed; slice sampling can be carriedout by three slice hook grooves, three portions of slice tissues can be detected, and accordingly the detection accuracy further can be improved; hemostasis can be directly carried out on biopsy puncture positions, and accordingly good hemostasis effects can be realized.

Echogenic markers can be applied to probes such as medical needles, including radiofrequency cannulae, injection needles, biopsy needles, microwave antennae, and spinal needles, among others. For example, in certain embodiments, the probes may have a distal end, a proximal end, a shaft, and an echogenic feature in the form of one or more indentations on the shaft. In certain embodiments, the probes may have a first echogenic feature in the form of an indentation in a surface of the probe and a second echogenic feature in the form of a roughening of the surface of the probe.

The invention relates to the technical field of medical instruments, in particular to a biopsy needle excitation device and a full-automatic biopsy device. The biopsy needle excitation device comprises a shell, the needle outlet end of the shell is the front end, the end, away from the needle outlet end, of the shell is the rear end, and an excitation button and an excitation device are sequentially arranged in the shell in the direction from the rear end to the front end; the excitation button is used for triggering the excitation device; and the excitation device is used for executing needle withdrawing operation when being triggered, the excitation device is provided with a first upper chord button and a second upper chord button, and the first upper chord button and the second upper chord button are arranged in parallel left and right in the direction from the rear end to the front end. According to the technical scheme, the excitation structure is reasonably arranged, so that the biopsy needle is simpler to operate, the conditions that the biopsy needle cannot be excited, is mistakenly excited and the like due to a complicated structure can be avoided, and the biopsy needle excitation device is more flexible, safer and more reliable.

The invention relates to the technical field of clinical medical treatment, and discloses a tissue biopsy needle. The tissue biopsy needle comprises a power mechanism, an outer sleeve needle and an inner core needle, wherein the inner core needle is embedded in the outer sleeve needle, a groove is formed in the side wall of the tail end of the outer sleeve needle, a semi-ring cutter correspondingto the groove is arranged on the inner core needle, and the power mechanism drives the semi-ring cutter to transversely rotate in the outer sleeve needle through a needle rod. The tissue biopsy needlehas the beneficial effects that in the process that a cutter opening of the inner core needle and a side cutter act together to cut tissue, the power mechanism drives the semi-ring cutter to rotate rapidly through the needle rod, rapid rotary cutting of the tissue to be detected is achieved to form a complete cylindrical sample, and the tissue is convenient to detect. In the cutting process, dueto the fact that rotary cutting is adopted, the outer sleeve needle and a needle tip are static, shaking cannot occur, damage to surrounding important organs is avoided, safety is greatly improved, and biopsy can be conveniently carried out on tissue such as large vascular gaps, dangerous organ sides, small nodules and lymph nodes.

The invention relates to the technical field of biopsy needles, in particular to a biopsy needle suite capable of being bent in a directional mode and used for extracting brain tissue lesions, the biopsy needle suite comprises one or two sets of penetrating mechanisms and two sets of biopsy mechanism assemblies with straight ends and bendable ends, each penetrating mechanism comprises a working sleeve, a first handle, a sleeve inner core and a second handle, a first handle is fixedly installed at the top end of the working sleeve, and a sleeve inner core is inserted into the working sleeve. In the invention, the working sleeve and the sleeve inner core are combined and then inserted into a specified position and depth, the sleeve inner core is taken out, the biopsy taking mechanism is combined, then the working sleeve is inserted and extended out along the top end of the working sleeve, the working sleeve can be automatically bent to recover an initial angle, the working sleeve is aligned to a pathological tissue position needing to be sampled in the brain, and the biopsy needle core is pulled out; according to the device, bending adjustment of the collecting opening can be carried out according to the needle inserting position and the position condition of the diseased tissue, and the flexibility is higher.

The invention discloses a penetration sampling device for the nephrology department. The device comprises a lifting end and a storage box, wherein a rear end shell is arranged at the left end of the lifting end, a lifting rod is fixed on the bottom surface of the lifting end, a lower end shell is fixed to the bottom surface of the tail end of the lifting rod, a biopsy needle is arranged on the bottom surface of the right side of the lower end shell, a threaded fixing ring is connected to the lower end of a fixing ring pipe, a pulley is arranged at the tail end of the bottom side of the supporting rod, an ultraviolet lamp is installed above a needle placement tool, a rotating shaft rod is connected to the inner side of a rotating bearing, a fine adjustment gear is fixed to the upper surfaceof the rotating shaft rod, and a control button is installed on the side surface of the lower end shell. Through the storage box and the sampling table, a precise assembly can be stored when the device is not used; an activated carbon layer and a placement layer are arranged, the stored utensils can be kept in a dry state, the ultraviolet lamp and the storage box are arranged, bacteria can be prevented from breeding on the surfaces of the utensils during protection and storage, and the sterilization effect is achieved.