35 results about "Needle localization" patented technology

This invention discloses a method and apparatus to deliver medical devices to targeted locations within human tissues using imaging data. The method enables the target location to be obtained from one imaging system, followed by the use of a second imaging system to verify the final position of the device. In particular, the invention discloses a method based on the initial identification of tissue targets using MR imaging, followed by the use of ultrasound imaging to verify and monitor accurate needle positioning. The invention can be used for acquiring biopsy samples to determine the grade and stage of cancer in various tissues including the brain, breast, abdomen, spine, liver, and kidney. The method is also useful for delivery of markers to a specific site to facilitate surgical removal of diseased tissue, or for the targeted delivery of applicators that destroy diseased tissues in-situ.

Methods, devices, apparatuses and systems are disclosed for performing mammography, such as utilizing tomosynthesis in combination with breast biopsy.

Embodiments of a needle biopsy device having a rotating needle mechanism to automatically cut sample tissue that can be operated remotely. A portable small biopsy robot can improve biopsy accuracy, reduce the pain and complications, and shorten the duration of the total biopsy time by using an automatic needle rotating mechanism and a needle localization system that allows a medical practitioner to perform the biopsy procedure from a remote distance. The needle biopsy device can include a cannula and a rotational biopsy needle with a blade the rotational biopsy needle axially and rotatably moveable within the cannula lumen, the blade configured to remove, cut, and / or separate a tissue sample from the target tissue site through rotation of the blade, and to hold the tissue sample in the rotational biopsy needle during proximal retraction from the patient.

A needle magazine for holding a plurality of injection needles (50) is described. The needle magazine comprises a first opening adapted to receive the device fluid access portion (120) of a medical delivery device. Each needle (50) is selectively moveable from a respective storage position not aligned with said first opening into a needle mounting position aligned with said first opening. The needle magazine further comprises needle positioning means (41). configured to alter the mutual position between a needle selected from said plurality of needles (50) relative to a neighbour needle when said selected needle moves from its storage position to the needle mounting position.

A central venous catheter kit enables health care workers quickly and controllably gain ultrasound supported access to vascular tissue for catheterization. Ultrasound support requires gel for reducing acoustic impedance and reflectance loss, which gel is included in the kit, as well as at least two newly conceived devices, the first for gripping the guide wire in an otherwise gelled environment, and the second for marking the skin for proper needle localization. State of the art kit components are thus included in the kit, in addition to the scanning gel and the noted device(s). The devices each comprise certain finger- or digit-grippable structure, and textured surfacing for enhancing the frictional contact between the user's digits and the devices.

A wire protector to cover an exposed portion of a device inserted into an organism comprises a removable backing layer removably joined to an attachment layer, and a transparent covering layer. The wire protector has a first end and a protector strip, the first end including a site wall and a connector wall, the site wall defining an insertion site therein, the site wall further comprising one or more prongs, the prongs facing the insertion site, the protector strip comprising one or more strip walls, such that when the backing layer is removed from the attachment layer, first end is positioned over the device insertion site, the protector strip is positioned over the exposed portion of the device, the protector device covers the exposed device portion. The wire protector stabilizes and protects needle localization wires used in breast biopsies, and can be used for other implanted devices. Also disclosed is a method for covering such exposed portion of such inserted device.

The present invention provides a device and a method for effectively processing epidural anesthesia by providing the needle-localization information in real time. The idea of this invention is derived from the concept that different tissues due to their different composition have different optical properties, such as absorbance and reflection, so we can discriminate the tissue types where the needle reaches by their distinctive optical properties. In this device, the inner solid needle of the puncture needle used before is replaced by a hollow needle which filled with optical fibers, and the distal end of those optical fibers are connected with two light sources of different wavelengths and a light analyzer. Thus, while qualifying and comparing the optical properties of those tissues, these device and method can be very helpful during epidural anesthesia and also reduce the risk of the surgery.

The invention provides an orthopedic kirschner wire positioning guider capable of being rapidly adjusted, and relates to the field of medical instruments. The orthopedic kirschner wire positioning guider capable of being rapidly adjusted comprises a workbench; two supporting guide plates are fixedly arranged at the middle end, close to one side, of the upper end face of the workbench; a sliding block is arranged between the two supporting guide plates in a sliding mode; a first electric cylinder is fixedly arranged on the upper end face of the workbench at the lower end of the sliding block; afirst telescopic rod is fixedly arranged at the output end of the first electric cylinder; the top end of the first telescopic rod is fixedly connected to the center of the lower end face of the sliding block; and a second electric cylinder is fixedly arranged on the upper end face of the sliding block. According to the orthopedic kirschner wire positioning guider designed by the invention, the needle feeding height and the horizontal position of a kirschner wire can be accurately and rapidly adjusted through the two electric cylinders, and the needle feeding angle of the kirschner wire can be rapidly adjusted through a first rotating head, a second rotating head and a fixing sleeve, so that a doctor can rapidly and accurately adjust the needle feeding angle after discovering that the needle feeding angle is incorrect during an operation.

The invention discloses an automatic tube penetration machine. The automatic tube penetration machine comprises a rack, a tube containing bin, a tube feeding wheel, a plastic tube supporting plate, astorage needle transition plate, a needle supporting plate, a needle supporting block, a needle penetration piece, a tube needle wheel, a needle dividing wheel, a storage needle feeding belt, a needlepositioning piece, a heating piece and a pressing piece; and the tube containing bin is arranged on the left side of the rack, the tube needle wheel is arranged on the right side of the tube containing bin, the plastic tube supporting plate is arranged between the tube containing bin and the tube needle wheel, the tube feeding wheel is arranged below the tube containing bin, the storage needle transition plate is arranged in front of the plastic tube supporting plate and is located on the left side of the rack, the needle supporting plate and the storage needle feeding belt are located between the storage needle transition plate and the needle dividing wheel, the needle supporting plate is located in front of the needle dividing wheel, the tube needle wheel is located on the right side ofthe needle dividing wheel, and the needle penetration piece is installed behind the needle dividing wheel. By means of the automatic tube penetration machine, automatic assembling and stable combination of syringe needles and needle tubes can be achieved, the production efficiency is improved, and the product homogeneity is good.

An apparatus for use with a biopsy device to position a needle of the biopsy device within breast tissue is described and claimed. The apparatus includes a cannula, an obturator; and an obturator actuation assembly, which is described as an “overshoot obturator”. The overshoot obturator is designed to give the physician the ability to set the z-lock to the targeted depth, then move the obturator forward, relative to the sleeve to cut additional tissue. This reduces the tissue force which can push the obturator out of the desired biopsy location.

The invention relates to the technical field of operation positioning and in particular relates to a puncture needle positioning system and method. The system comprises an ultrasonic unit, a punctureneedle unit and a processing and display unit, wherein the ultrasonic unit comprises a first probe for providing an ultrasonic section at an affected part; a plurality of first positioning devices forproviding coordinate information of the first probe are arranged on the first probe; the puncture needle unit comprises a puncture needle; a plurality of second positioning devices for providing coordinate information of the puncture needle are arranged on the puncture needle; and the processing and display unit is in communication connection with the ultrasonic unit, the first positioning devices and the second positioning devices respectively. By adopting the puncture needle positioning system provided by the invention, the precision of puncture via a chest wall can be greatly improved, andnot only are complications caused by repeated puncture effectively avoided, but also the time of puncture in an operation can be greatly shortened.

The invention discloses a compasses type cervical conization device. The device comprises a positioning block, an adjusting mechanism, a knife holder and a blade, wherein the positioning block is hinged with a swing rod through a hinge pin, a positioning needle is arranged below the positioning block, and a press handle is arranged above the positioning block; a support is arranged at the tail end of the swing rod, the knife holder device is mounted on the support, the blade is mounted at the lower end of the knife holder device, and the adjusting mechanism is arranged between the blade and the knife holder device. A tool is fixed firstly by the positioning block and a positioning needle head, then the swing rod is driven to rotate for a circle with the positioning block as the center, the swing rod carries the knife holder and the blade to rotate for a circle to perform conization on muscular tissue, and a conical cut block is formed. The device is simple and reasonable in structure, very convenient to operate and good in conization effect and has the size up to the standard. Different conization sizes, depths and shape standards are realized by adjusting the height, angle and longitudinal position of the knife holder.

The invention discloses a pancreas puncture positioner and a positioning method thereof, and belongs to the field of pancreas puncture. A pancreas puncture positioner comprises a fixing frame and further comprises a supporting frame connected to the fixing frame in a sliding mode, a positioning pipe is arranged on the supporting frame, a protection head is fixedly connected to the positioning pipe, and a cavity is formed in the positioning pipe. The sliding block is connected into the cavity in a sliding mode, a puncture needle is fixedly connected to the sliding block, a drainage tube is fixedly connected to the positioning tube, and the puncture needle is connected to the protection head in a sliding mode; the pancreas puncture device is easy to use and convenient to operate, the pancreas is positioned through the positioning pipe and the protection head, then the puncture needle is pulled through the pull rope to penetrate out of the protection head to puncture the pancreas, the trouble that a thin needle is used for positioning firstly and then inserted into a pipeline for puncture is reduced, the puncture treatment efficiency is improved, the operation time is shortened, and the pain of a patient is relieved.

The invention provides a puncture needle positioning frame. The puncture needle positioning frame comprises a base arranged around a first axis, and a puncture needle guide piece which is movably arranged on the base; a needle channel located in a first plane is arranged in the puncture needle guide piece, and the first plane is perpendicular to the first axis; the needle channel extends in the radial direction of the base, and when the puncture needle guide piece moves relative to the base, the needle channel can be driven to move in the circumferential direction of the base, wherein in the working state, the base is fixedly arranged on the surface of a human body through the bottom face of the base, the first axis penetrates through a puncture point on the surface of the human body, andthe first plane coincides with the puncture plane. Through the puncture needle positioning frame provided by the invention, the puncture accuracy can be ensured.

The embodiments of the present invention provide a system and method for light and shadow guided needle positioning. DICOM images of a patient are captured for identifying a point of insertion of a needle on the patient's body and a target point inside the patient's body. Needle coordinates are computed based on the captured DICOM images to position the mechanical arms. Light is projected at a particular angle on the needle to form shadows of the needle. Laser light beams are projected to form cross hair at the point of insertion. Images or videos of the point of insertion, shadow of the needle and the cross hair are captured and displayed on a monitoring unit. A virtual circle is projected on the displayed image and is aligned with the point of insertion, shadow of the needle and cross hair in order to insert the needle precisely.

This apparatus consist of three devices. The first device is latex free radiolucent small diameter piece of tubing with a small diameter opening in its center. The wire that is protruding from the patient is run through the small diameter opening. The tubing is long enough to fully cover the sharp ends of the wire. When the tubing has been placed over the wire, it is looped in a loose loop and held to the skin by a rectangle latex free adhesive bandage which has no adhesive in its center. The third device is used when the patient is waiting for surgery and the needle and wire are left in the breast. At this point an adjustable height cup is placed over the wire. The adjustable height cup has four tabs extending from its bottom which are used to hold the cup in place on the body over the wire.

The invention relates to the field of intelligent medical equipment, in particular to a robot puncture positioning method and device for biliary tract puncture, and the method comprises the steps: receiving a scanning request, and scanning a scanning target; collecting ultrasonic images during scanning, and establishing a one-to-one correspondence relation between the ultrasonic images and the spatial positions when the ultrasonic images are collected; defining the ultrasonic image which is most matched with a planning image layer in the ultrasonic images as a puncture layer; if no barrier exists on the puncture layer, taking the point, closest to the puncture target point, of the scanning target as a needle entering point, and taking the connecting line between the needle entering point and the puncture target point as a planned needle entering track; and then, when a caculated needle entering positioning channel and the planned needle entering track are not collinear, adjusting the needle entering positioning channel to be collinear with the planned needle entering track, and completing positioning of the needle entering positioning channel. The robot puncture positioning method and device are used for positioning a puncture channel, the puncture positioning precision is improved, and the needle puncture frequency is reduced.

The invention relates to a needle inserting and implanting guiding device for internal radiotherapy. The central hole channel is formed along the central axis of the rod-shaped main body; the axial needle penetrating channels are uniformly distributed in the circumferential direction of the rod-shaped main body and are parallel to the central hole channel; the inclined needle inlets are formed in the side part of the tail end of the rod-shaped main body; the inclined needle outlets are formed in the side part of the head end of the rod-shaped main body; the inclined needle inlets and the inclined needle outlets are in one-to-one correspondence and are communicated through inclined needle penetrating channels. The device is convenient for positioning the implanting needle and is simple in structure.

A portable medical spray includes a tubular body having a room defined therein and a canister is located in the room. A needle is located in the room and a nozzle is formed to the top end of the body. The nozzle has a passage defined therethrough and the passage communicates with the room. The passage is located corresponding to the needle. A holding portion is formed to outside of the body. The canister has medicine received therein. A breakable portion is formed to the top end of the canister and located corresponding to the needle. The medicine is ejected through the passage of the nozzle when the canister is pushed and the needle penetrates through the breakable portion of the canister.

The invention discloses a clinical special high-temperature and high-pressure bur disinfection box. The box comprises a box frame and a bur frame which is arranged on the box frame and enables a disinfection cavity to be formed in the box frame, wherein a through hole is formed in the machine needle frame; a machine needle positioning mechanism which is arranged in the through hole and is fixedly connected with the machine needle frame, wherein air holes communicated with the disinfection cavity are formed in the side surface and the bottom surface of the box frame, and the through hole is communicated with the disinfection cavity. The clinical special high-temperature and high-pressure bur disinfection box can effectively prevent disinfection personnel from being punctured by bur needles.

An imaging system and method includes a medical device (102) having a tracking element (106) mounted thereon. The array of transducers (109) are spaced apart from each other to exchange energy in the subject between the tracking element and the array of transducers. The trilateration module (104) is configured to interpret signals sensed between the tracking element and the array of transducers to calculate a signal flight associated with the transducers in the array time such that the position of the tracking element is determined in at least two dimensions to locate the position of the medical device in the visual image.

The invention relates to the technical field of medical instruments, and particularly relates to a spine minimally invasive eccentric porous light-transmitting positioning and guiding device and a using method thereof. The spine minimally invasive eccentric porous light-transmitting positioning and guiding device comprises a positioning and guiding body and a positioning and guiding needle, wherein one end of the positioning and guiding body is provided with a conical radian; the positioning and guiding body is provided with a plurality of first guiding needle through holes in the length direction; one first guiding needle through hole is formed along the central axis of the positioning and guiding body; the axes of the other first guiding needle through holes are perpendicular to different positions in the radial direction of the positioning and guiding body; a developing ring mounting hole is formed in the end, close to the conical radian, of each first guiding needle through hole; adeveloping ring is mounted in each developing ring mounting hole; and the positioning and guiding needle penetrates through the positioning and guiding body from the first guiding needle through holes. According to the spine minimally invasive eccentric porous light-transmitting positioning and guiding device and the using method thereof, the accurate position of a bone lesion is quickly found ina circle covering mode along different tracks with a single point as the reference, the size of the visual angle can be adjusted in the lesion position finding process, and the finding time of a nailfeeding point is greatly shortened.