96 results about "Needle placement" patented technology

A robotic system for overlapping radiofrequency ablation (RFA) in tumor treatment is disclosed. The robot assisted navigation system is formed of a robotic manipulator and a control system designed to execute preoperatively planned needle trajectories. Preoperative imaging and planning is followed by interoperative robot execution of the ablation treatment plan. The navigation system combines mechanical linkage sensory units with an optical registration system. There is no requirement for bulky hardware installation or computationally demanding software modules. Final position of the first needle placement is confirmed for validity with the plan and then is used as a reference for the subsequent needle insertions and ablations.

Featured is an apparatus that places or locates a proximal end portion of a penetrating member in a target area of a body. Such an apparatus or needle driver is particularly suited for locating a percutaneous needle in a soft tissue target area of a body particularly a body having inhomogeneous soft tissues. The apparatus includes a first arm that is configured and arranged so as to support a distal portion of the penetrating member and a first drive mechanism that is coupled to the first arm. The first drive mechanism is configured and arranged to move or translate the first arm from an initial position to any of a number of other positions that are spaced from the initial position and correspondingly translate the proximal end portion of the penetrating member. In another embodiment, the first arm also rotatably supports the penetrating member and the apparatus further includes a second drive mechanism coupled to the penetrating member distal portion and which is configured an arranged to rotate the penetrating member about the translational axis.

An optical device is provided which assists in accurate placement of a needle into a human or animal diarthrodial joint. The device includes a handpiece which mounts a needle assembly including an optical guide. The optical guide, which is incorporated into the lumen of the needle, transmits light from the needle tip into the joint area and receives the scattered light that is returned. The handpiece is manipulated by the user to guide the needle during placement. The returned light is processed to determine whether the needle is placed in the joint itself rather than in a location adjacent to the joint and corresponding output is produced to aid the user in effecting proper needle placement. Such placement assists in the injection of fluid into or the removal of fluid form the joint.

A needle placement manipulator includes, a needle holder configured to hold a needle, a guide system configured to position the needle holder to a predetermined direction with respect to a subject of needle placement, an attachment including an attaching portion to which the guide system is attached and a setting portion on which an RF-coil is set. A base surface of the setting portion is configured to be disposed on the subject.

An automatic stage allows rapid and more precise needle placement for radiation therapy using implantable radioactive seeds.

A needle placement manipulator includes, a pair of rotary guides arranged at a slanted angle with respect to each other, a needle holder which holds a needle along a needle holder axis, and a base body on which the guides are supported. The needle holder axis and each axis of the rotary guides cross at a single point located at or below the base body. The base body is configured to be attached to a patient or to an RF-coil.

A suture punch system that is capable of directly passing braided suture through tissue in a simple, one-step process. The system includes three principle components: a malleable needle capable of delivering the suture to the tissue, a handheld instrument for grasping tissue and controlling needle placement, and a force-supplying mechanism to supply the force required for needle placement. Needle deformation begins at the tip of the instrument, which beneficially includes a curved segment. As the distal tip of the needle pierces the tissue, it continues its radial path through the tissue. When the proximal end of the needle exits from the instrument, the needle may be radial in shape and traverses an essentially radial path through the tissue. Once the needle has passed entirely through the tissue, it may be retrieved using the jaws of the punch or another instrument.

A cryosurgical system for assisting an operator in placing and operating cryosurgical probes in the prostate of a human patient. The cryosurgical system includes a computer system being programmed with software capable of performing the following steps: a) capturing a plurality of transverse views of the prostate; b) capturing a sagittal view of the prostate; c) outlining the capsule of the prostate, the urethra and the rectal wall of the patient with the assistance of the operator, utilizing the captured plurality of transverse views and the captured sagittal view; d) constructing a 3-dimensional model of the prostate, the urethra and the rectal wall utilizing the outlines of step c), above; and, e) utilizing the 3-dimensional model of the prostate, the urethra and the rectal wall to determine i) the number of cryosurgical probes to be utilized; ii) probe settings; and, iii) probe placement positions. The resultant ice thus produced by the cryosurgical probes is optimized for a specific patient.

An aspect of the present disclosure is to provide a device or needle placement system including a needle having a proximal end and a distal end, and an ultrasound transducer element attached to the distal end of the needle. The system also includes a needle constraining assembly configured to receive and constrain the needle to only rotational degrees of freedom within a range of angular motion. The system further includes a needle sensor system incorporated into the constraining assembly to sense an angular orientation of the needle with the range of angular motion. The system also includes an ultrasound data processor configured to communicate with the transducer element to receive ultrasound detection signals and communicate with the needle sensor system to receive needle angular orientation signals. Based on the ultrasound detection and the needle angular orientation signals, the ultrasound data processor can calculate synthetic aperture ultrasound images.

A needle and needle system that aids in determining needle position with respect to an implanted device. The system determines needle position by detecting changes in electrical characteristics and the system further may generate a cue to indicate proper needle placement within an implanted device. Methods for detecting needle position with respect to an implanted infusion device are also disclosed.

An apparatus (51) includes a needle placement manipulator (1) and an attachment (52) for the manipulator. The manipulator includes a needle holder and a rotary mechanism. The rotary mechanism (3, 4) has a remote center of motion (RCM: 11) and is configured to position a needle holder (5) such that the axis of the needle holder traces a conical region of coverage (108), the conical region of coverage having the apex thereof at the RCM and the base thereof in a direction towards a subject of needle placement (14). The attachment supports the guide mechanism and is configured to be mounted onto the subject of needle placement. The attachment includes a guide portion (183c) configured to change an inclination of the rotary mechanism with respect to the subject of needle placement such that the axis of the needle holder intersects an insertion target (14) located outside of the conical region of coverage.

The invention relates to a sewing machine, which comprises a rack. The sewing machine is characterized in that the bottom of the rack is provided with a table top, wherein the top of the rack is provided with a power head; the bottom of the power head is fixedly provided with an edge pressing column; the bottom end of the edge pressing column is connected with an edge pressing mechanism; the bottom of the power head is also fixedly provided with a machine needle fixing mechanism; the machine needle fixing mechanism is provided with a plurality of machine needle placement holes; the inside of each machine needle placement hole is provided with a machine needle; the tail parts of the machine needles are movably fixedly arranged on the machine needle fixing mechanism; the head parts of the machine needles approach to the table top; the table top is provided with a groove by corresponding to the position of the machine needle placement holes; the machine needle fixing mechanism is movably provided with a regulation plate; and the regulation plate is fixedly arranged on the machine needle fixing mechanism by a regulation screw and is contacted with the tail part of the machine needle. The sewing machine disclosed by the invention has the advantages of tidy and attractive stitch, high sewing speed, convenience in use, simple structure and high working efficiency, is flat and firm and is safe and reliable.

An automatic acupuncture needle falling device is characterized by comprising a vibratory carrying table and a needle feeding wheel, wherein the needle feeding wheel is arranged on a device rack and comprises a feeding side and a discharging side, the feeding side is located at the front end of the rotating direction of the needle feeding wheel and corresponds to the carrying table, and the discharging side is located at the rear end of the rotating direction of the needle feeding wheel. Multiple long-strip-shaped needle separating grooves are formed in the circumferential face of the needle feeding wheel, and each needle separating groove is used for positioning a needle blank of one acupuncture needle. The needle separating grooves are parallel to a rotary shaft of the needle feeding wheel and are formed in the circumferential direction of the needle feeding wheel. The vibratory carrying table comprises a needle placement plate fixedly arranged on the rack and used for stacking needle blanks. The upper surface of the needle placement plate inclines towards the needle feeding wheel, the lower end is provided with a discharging port and attaches to the feeding side of the needle feeding wheel. The automatic acupuncture needle falling device can continuously provide needle blanks for a long time and automatically separate and check falling needles, the carrying table is large inneedle blank loading capacity, one-time needle blank material added within 10-20 minutes can be decreased to one or two times of needle blank adding every day, needle falling is stable, and the automation degree is high.

The invention discloses an automatic detection method and device for a thread plug gage. A main control machine controls a thread plug gage clamping device to clamp and fix the thread plug gage and controls a three-needle placement device to insert and fix three needles meeting the standards into a groove in the thread plug gage; the main control machine controls an automatic measurement device to measure the maximum distance of the outlines of the three needles and displays the measurement result on the automatic measurement device. The automatic detection method and device for the thread plug gage is exquisite in design and easy to operate. Through effective matching of all the components, under the control of the control device, the test work can be automatically carried out, operators do not need to carry out specific measurement work, the requirements for the operators are largely lowered, the application range is wider, and the detection efficiency is largely improved. Meanwhile, it is guaranteed that the integrating degree of the three needles and the thread plug gage meets the requirement, errors possibly caused by manual measurement are avoided, and the test accuracy is improved to the maximum extent.

A blood access device includes (i) a conductive needle configured to pierce a patient's skin and gain access to a blood vessel; (ii) an insulative housing supporting a fluid communication junction between the needle and flexible tube; (iii) a conductor having a first end connected to the insulative housing and a second end extending from the insulative housing in a direction coextensive with the needle such that (a) when the needle has gained access to the blood vessel the patient's skin, the conductor is electrically insulated from the conductive needle and (b) if the needle is pulled so as to interrupt access with the blood vessel, the conductive needle and the conductor come into contact with each other.

A neurosurgical robotic system for bilateral stereotaxy that integrates intraoperative MRI guidance is provided. The robotic system can be implemented in regular diagnostic MRI facilities. Navigation for bilateral brain targets can be performed independently and simultaneously. The robotic system includes a plurality of manipulators, a needle guide (31), a needle (12) disposed within the needle guide (31); and a mounting base (39) with a plurality of screw holes for bone mounting.

Provided is a blood glucose detecting auxiliary device and detecting method suitable for a blood glucose measuring instrument. In the prior art, when a medical worker performs a blood glucose testingservice, a bag, a pocket, a box and the like are mostly used for containing various supplies and appliances, so that the supplies and appliances are not easily taken and put by using the disorderly containing method. The blood glucose detecting auxiliary device suitable for the blood glucose measuring instrument comprises a box body (1), a box cover (2), a handle (3) on the box cover and a lock catch (4) corresponding to the connection part between the box body and the box cover, wherein the two sides of the box body are respectively provided with a test paper placement box (12) and a blood taking needle placement box (13), one side of the box cover is provided with a blood glucose measuring instrument placement box (14) and a disinfectant placement box (15), the other side of the box cover is provided with a blood taking pen placement box (16) and a cotton swab placement box (17), the blood glucose detecting auxiliary device is arranged in the middle portion of the box body and box cover, and the blood glucose detecting auxiliary device is composed of two parallel bases (5) fixedly connected to the middle lower portion of the box body. The blood glucose detecting auxiliary deviceand detecting method suitable for the blood glucose measuring instrument are applied to the field of blood glucose detection.

The invention discloses a guide needle implantation precision evaluation method which comprises the following steps: (1) scanning a to-be-implanted needle to obtain intraoperative 3D point cloud, planning a channel in the intraoperative 3D point cloud, controlling a robot to move in place according to the planned channel, implanting a guide needle, and scanning a needle implantation position to obtain postoperative 3D point cloud; (2) calculating gradient differences between all points in the intraoperative or postoperative 3D point cloud and one point in the 3D point cloud, taking the direction with the fastest gradient drop as the direction of the point, and taking the obtained gradient differences and the direction of the point as description vectors of the point; and (3) matching the intraoperative 3D point cloud with the postoperative 3D point cloud through the description vector, and calculating the deviation between the intraoperative planning channel and the postoperative needle placement position. Through two-step registration of rough registration and accurate registration between the intraoperative 3D image and the postoperative 3D image, accurate coincidence of the intraoperative 3D image and the postoperative 3D image is realized, and on the basis, precision evaluation is performed on a planned channel in the intraoperative 3D image and the position of an implantation guide needle of the postoperative 3D image.