11results about How to "Improve puncture accuracy" patented technology

The utility model discloses an in-situ sampling biopsy needle device. The in-situ sampling biopsy needle device comprises a shell, a back-and-forth movement module is arranged in the shell, the side, away from a patient, of the back-and-forth movement module is a near end, the other side of the back-and-forth movement module is a far end, and a needle set used for puncture sampling is arranged at the far end; the shell is internally provided with a percussion module and a winding mechanism, the percussion module is used for implementing linkage limitation on the positions of corresponding parts of the reciprocating motion module, and the winding mechanism is used for driving the corresponding parts of the reciprocating motion module to slide relative to the shell; and the elastic assembly is arranged on the reciprocating motion module and is used for driving corresponding parts of the reciprocating motion module to quickly move to a preset position so as to realize reciprocating motion control. The utility model has the advantages that the puncture precision can be effectively improved so as to improve the sampling efficiency, and the biopsy sampling safety can be improved so as not to hurt patients and medical personnel easily.

The utility model relates to medical equipment technical field discloses a kind of minimally invasive puncture devices, including base, the base upper end middle part is fixedly arranged with stand, the stand one side is provided with sliding slot, the sliding slot inside rotation is provided with screw rod, the stand inside lower end is fixedly arranged with motor, the screw rod outer wall is equipped with mounting rod, the mounting rod inside is fixedly arranged with first electric push rod, the output of first electric push rod is fixedly connected with mounting box, the first sliding slot is arranged in the both sides of mounting box inside. In the utility model, the device is convenient for medical staff to automatically adjust the height and position of the puncture needle body according to needs, so that it is more convenient to position the puncture needle body during surgery, and it is also convenient to disassemble or replace the puncture needle body of different specifications, which brings convenience to medical staff during use and improves the convenience and puncture accuracy.

The utility model discloses an internal arteriovenous fistula ultrasonic guide puncture support which comprises a first clamp arm, a second clamp arm and an elastic piece, and the first clamp arm and the second clamp arm are hinged to each other to form a closed state or an open state. A first forceps arm and a second forceps arm which can be fixed on an ultrasonic probe are arranged, and a first guide part and a second guide part which are used for guiding a puncture needle to puncture are respectively arranged on the first forceps arm and the second forceps arm; the first guide part and the second guide part are respectively provided with a guide groove which corresponds to each other and is used for guiding the butterfly wings of the puncture needle to slide at the same time, so that under the guiding action of the guide grooves, a nurse can carry out fool type puncture, and the requirement on experience is reduced; the puncture needle can be accurately guided to pierce blood vessels in the human skin below the ultrasonic probe, meanwhile, the puncture needle has various puncture depths by arranging a plurality of guide grooves with different inclination angles, and the guide grooves with different angles can be selected according to the actual situation to adapt to the blood vessel depths of different patients; and finally, the puncture accuracy and the success rate of the puncture needle are improved.

The utility model discloses a CT (Computed Tomography) positioning puncture angle guider, which is mainly applied to the technical field of medical instruments and comprises a bubble type gradienter, a protractor, an angle scale and a locking hand wheel, the protractor is in a right-angle fan shape, the arc-shaped edge is provided with scales, the angle scale is rotatably connected to the circle center, and the locking hand wheel is arranged at the joint. A bubble type gradienter is arranged on the right-angle side of the protractor, a protruding block is arranged on the lower portion of the angle ruler, a through hole is formed in the center of the protruding block in the length direction of the angle ruler, and the axis of the through hole is aligned with scale marks of the angle ruler. The CT positioning puncture angle guiding device is scientific and reasonable in structural design, convenient to use, safe, reliable, low in manufacturing cost, capable of being used repeatedly, high in adaptability and high in puncture precision, reduces operation risks, improves puncture operation efficiency and has high popularization value.

The utility model discloses an auxiliary device for arteriopuncture under ultrasound guidance, which comprises a clamping sleeve, the clamping sleeve comprises mutually hinged clamping pieces, the inner wall of each clamping piece is provided with a clamping groove matched with the peripheral surface of an ultrasonic probe, and the end face of one end of the clamping sleeve contacted with the body surface is an inclined plane; a fixing lug and a guide sheath are arranged on the outer wall, close to the body surface, of a card, a through hole allowing a puncture needle to penetrate through is formed in the axis of the guide sheath, the guide sheath is arranged in a split mode and comprises two sheath bodies which attract each other, a supporting rod is arranged on the outer wall of any sheath body, and the guide sheath is hinged to the fixing lug through the supporting rod. The plane formed by rotation of the guide sheath is perpendicular to the plane where the transmitting direction of the ultrasonic probe is located, and the angle between the guide sheath and the plane where the transmitting direction of the ultrasonic probe is located ranges from 110 degrees to 140 degrees. The auxiliary device for artery puncture under ultrasonic guidance has the beneficial effects of stable ultrasonic emission direction and high puncture accuracy during use.

The thoracoabdominal puncture bag comprises a soft indwelling catheter and a hard puncture needle, and the puncture needle penetrates through the indwelling catheter; a depth mark is arranged on the indwelling catheter, and a plurality of through holes are formed in the indwelling catheter; the indwelling catheter is brought to a designated position through the indwelling needle to achieve effusion drainage, the indwelling catheter is provided with the depth mark, the difficulty that the puncture depth is difficult to grasp is reduced, and therefore the risk of an operation and discomfort of a patient are reduced.

The embodiment of the invention provides a device for breaking and removing seed coats of hard seeds, and relates to the technical field of plant seed treatment.The device for breaking and removing the seed coats of the hard seeds comprises a seed containing plate, a support and a needle threading assembly, and a plurality of containing grooves used for containing the seeds are formed in the seed containing plate; the needle threading assembly is arranged above the seed placing plate and comprises a needle placing bed, an adjusting plate, a telescopic piece set and a fixing piece, the needle placing bed and the adjusting plate are both arranged on the support in a sliding mode, a plurality of puncture needles are arranged on a bottom plate of the needle placing bed, a plurality of needle holes allowing the puncture needles to penetrate through are formed in the adjusting plate, and the puncture needles correspond to the placing grooves; the telescopic piece group is arranged between the needle placing bed and the adjusting plate and is used for adjusting the distance between the needle placing bed and the adjusting plate; the fixing part is arranged on the telescopic part set and used for fixing the relative position of the needle placing bed and the adjusting plate. According to the device for breaking the seed coats of the hard seeds, the seeds with the seed coats of different thicknesses can be subjected to coat breaking treatment, the seeds are not prone to being damaged, and the germination efficiency of the seeds is improved.

The utility model relates to a kind of image-guided puncture surgery positioning auxiliary, including adhesive, be equipped with one main longitudinal pipe, one main transverse pipe, multiple auxiliary longitudinal pipes and multiple auxiliary transverse pipes on the adhesive;The main longitudinal pipe, multiple auxiliary longitudinal pipes are respectively with main transverse pipe, multiple auxiliary transverse pipes cross arrangement form net structure;Angle scale line is equipped in the main longitudinal pipe and main transverse pipe, metal particle is uniformly spaced and arranged in the auxiliary longitudinal pipe and auxiliary transverse pipe.And shoot under X-ray, the metal particle distributed in multiple auxiliary longitudinal and multiple auxiliary transverse pipe can be shown as the square of point group, square can be divided into net graph by human body, it is convenient for medical staff to better position body position, and metal particle development is small, will not excessively obstruct bony mark, it is favorable to improve puncture surgery positioning efficiency.And angle scale line is equipped in the main longitudinal pipe and main transverse pipe, the setting angle scale line is convenient for operator to judge needle angle, to improve puncture accuracy.

The utility model belongs to the technical field of puncture positioning, particularly relates to a puncture accurate positioning guider, and aims to solve the problem that puncture accuracy is affected by deviation easily caused by shaking of a hand since a puncture needle is held by a single hand to guarantee a puncture angle and gradually apply force to pierce the puncture needle, and provides the following scheme: the puncture accurate positioning guider comprises a support box, the supporting box is vertically placed, a needle sleeve used for a puncture needle to penetrate through is arranged outside a box opening of the supporting box, the adjusting assembly is arranged on the supporting box and used for adjusting the position of the needle sleeve in a multi-angle mode, and the adjusting assembly comprises threaded rods rotationally installed at the two ends of the inner wall of the supporting box; one side of the sliding seat penetrates through a box opening of the supporting box and is fixedly provided with an electric push rod. When the device is used, the device can be fixed on an ultrasonic probe through the fastening sleeve, accidental shaking is reduced, the position of the needle sleeve can be accurately adjusted through the adjusting assembly, shaking of the hand can be reduced, and the puncture precision is improved.

The present invention discloses a corrector for improving the puncture accuracy of a sealed seed source implant needle, and relates to the field of medical devices. The corrector comprises a needle storage portion, which is composed of a needle storage cylinder, a supporting ring plate installed at one end of the needle storage cylinder, and a filling bin connected to the other end of the needle storage cylinder, wherein the filling bin is connected to and provided with two symmetrically distributed supporting bins; an annular needle changing turntable rotatably arranged in the filling bin, and an anti-sway component for stabilizing the implant needle; an auxiliary portion; after the present invention drives the anti-sway component to move to a position where it no longer blocks the implant needle through a transmission component, the transmission component continues to operate, which will drive the annular needle changing turntable to rotate, so that the implant needle reaches the needle changing position, and then the needle pushing component and the needle feeding component are used in coordination to complete automatic needle changing, which can reduce the time waste caused by the difficulty in needle changing, and compared with using two driving mechanisms to separately drive the annular needle changing turntable and the anti-sway component, the transmission component provided can reduce the number of power sources such as motors used, and is more power-saving.