11 results about "Cerebral angiography" patented technology

The utility model discloses a kind of cerebral angiography and treatment of radial artery approach combined catheter, belong to medical instrument technical field, the catheter includes outer sleeve and inner core pipe;The outer sleeve includes outer tube body, the inner core pipe is movably threaded in the lumen of outer sleeve, the inner core pipe includes connected proximal end tube body and distal end tube body, the distal end tube body is pre-shaped structure, the pre-shaped structure of the distal end tube body is formed by multiple arc transition sections connected head to tail, the multiple arc transition sections constitute hook shape and the head end of distal end tube body extends to the outside of hook, the length of the pre-shaped structure of the distal end tube body is 12.5-18.5cm.The utility model sets outer sleeve and inner core pipe as independent catheter, without nesting and unscrewing when operating, reduce blood vessel injury risk;Inner core pipe has stronger superselective ability, can be directly used for the superselective angiography of target blood vessel.

The invention belongs to the technical field of medical instruments, and particularly relates to an adjustable compression salt bag used after a whole cerebral angiography interventional operation. The salt bag comprises a salt bag body and an adjustable hook-and-loop fastener bandage, the outer layer of the salt bag body is made of medical high-density polyester cotton waterproof breathable fabric, a closed containing cavity is formed through edge sewing, the cavity is evenly filled with high-purity edible salt, and the two ends of the adjustable hook-and-loop fastener bandage are fixedly sewn to the edges of the two opposite sides of the salt bag body respectively. The device is simple in structure and convenient to operate, the compression strength can be accurately adjusted, continuous and stable compression hemostasis of a puncture part is achieved, the occurrence rate of postoperative complications is effectively reduced, meanwhile, good air permeability and fitness are achieved, the use comfort of a patient is improved, and the clinical postoperative nursing requirement is met.

The utility model discloses a head fixing seat for cerebral angiography, which comprises a pillow seat, at least one transverse fixing component and at least two longitudinal fixing components, the transverse fixing component comprises a transverse fixing belt, a transverse connecting buckle and a transverse adjusting piece, the transverse fixing belt is detachably inserted into the transverse connecting buckle, and the transverse connecting buckle is detachably inserted into the transverse adjusting piece. The transverse adjusting piece is used for loosening and tightening the transverse fixing belt and adjusting the connecting position in the transverse connecting buckle, namely adjusting the fixed length of the transverse fixing belt; the longitudinal fixing assembly comprises a longitudinal fixing belt, a longitudinal connecting buckle and a longitudinal adjusting piece, the longitudinal fixing belt is detachably inserted into the longitudinal connecting buckle, and the longitudinal adjusting piece is used for loosening and tightening the longitudinal fixing belt and adjusting the connecting position in the longitudinal connecting buckle. The head of a patient is transversely and longitudinally fixed to the pillow base through the transverse fixing assembly and the longitudinal fixing assembly respectively, comprehensive positioning is achieved, and the head is effectively prevented from shaking; the transverse adjusting piece and the longitudinal adjusting piece can properly adjust tightness according to the head size of a patient, and the application range is wide.

1. Name of the product in this design: Head Fixator. 2. Purpose of this design: To fix the head during cerebral angiography. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention discloses an artificial intelligence-based method for measuring aneurysms in cranial arterial angiography images, comprising the following steps: S1, acquiring keyframes of DSA images; S2, segmenting the keyframes using a deep neural network to distinguish between the background and blood vessels; S3, determining the aneurysm location region based on the segmentation results, obtaining the contour of the region, and simultaneously obtaining the length of the connection between the gray aneurysm region and the white blood vessel region, i.e., the aneurysm diameter width w; S4, based on the obtained aneurysm contour shape, calculating the aneurysm centroid O by spatial moments, drawing a perpendicular line through the centroid O and intersecting the contour boundary, traversing all angles, and taking the largest intersection line segment as the maximum diameter l of the aneurysm, drawing a perpendicular line from the aneurysm diameter width w and intersecting the contour boundary, the maximum height of which is the aneurysm height h. This invention achieves fully automated measurement of the diameter of cerebral vascular aneurysms through a deep neural network trained on a large amount of data, solving the problems of slow speed, poor accuracy, and large influence of subjective factors in manual measurement.

The application discloses a right radial artery type III aortic arch whole brain angiography catheter, which comprises an inner tube and an outer tube, wherein the inner tube comprises a first tube segment, a second tube segment, a third tube segment and a fourth tube segment, an included angle between the first tube segment and the second tube segment is 135-145 DEG and a first bend is formed to bend outward, an included angle between the second tube segment and the third tube segment is 40-55 DEG and a second bend is formed to bend inward, and an included angle between the third tube segment and the fourth tube segment is 130-140 DEG and a third bend is formed to bend outward; the outer tube is coaxially sleeved outside the inner tube, and the hardness of the outer tube is smaller than that of the inner tube, so that the outer tube can move along the inner tube. The angiography catheter does not need to be coiled in the aortic arch, can directly superselect the blood vessels on the arch, and reduces the coiling step of the Simmons catheter.

The utility model discloses a lower limb braking protection device used after cerebral angiography. The lower limb braking protection device comprises a base. The device further comprises a thigh support and a shank support, the thigh support and the shank support are both provided with restraint straps, one end of the shank support is in sliding connection with the base through a transverse shaft, one end of the thigh support is rotationally connected with the base, and the other end of the thigh support is rotationally connected with the shank support to form a supporting structure capable of being folded and arched. The supporting structure is provided with a locking mechanism used for fixing the included angle between the thigh support and the shank support. The utility model has the advantages that the brake angle is adjustable, and the brake requirements after different angiography operations can be met.

This invention relates to a cannula assembly for cerebrovascular intervention via the radial artery approach, comprising an outer cannula, an intermediate access catheter, and a guidewire. The outer cannula has a first curved section, a first straight section, a second curved section, a second straight section, a third curved section, a linear section, and an outer cannula connector. The second curved section bends distally, with the curvature of the distal section being greater than that of the proximal section. The second straight section is longer and has a greater inclination than the first straight section. The intermediate access catheter has a cephalic section, a cervical section, a linear section, and an intermediate access catheter connector. The outer cannula is more rigid than the intermediate access catheter. This invention improves the convenience and success rate of transradial cerebral vascular superselection, avoids vascular injury, and is applicable to either the left or right radial artery approach. It can be used for both cerebral angiography and interventional treatment of cerebrovascular diseases.

The invention discloses a neurology cerebral angiography femoral artery auxiliary puncture device, and relates to the technical field of medical instruments, the neurology cerebral angiography femoral artery auxiliary puncture device comprises an upper leg support plate and a lower leg support plate which are both made of carbon fiber materials, a joint piece is connected between the upper leg support plate and the lower leg support plate, and a compression hemostasis unit is arranged on the upper portion of the upper leg support plate. The compression hemostasis unit comprises an adjusting bearing assembly and a hemostasis assembly, and the fixing assembly is arranged on the upper leg supporting plate and the lower leg supporting plate; a fixing plate in the bearing assembly can be adjusted in an adjusting hole in a lifting mode, in cooperation with fine adjustment of the position of a compression air bag through a retractable rod and a drawstring in the hemostasis assembly, the compression air bag can be accurately adjusted to the proper height and position and can be tightly attached to a puncture point according to the specific position of the femoral artery puncture point of a patient, and therefore the patient femoralis artery puncture point can be more accurately fixed. The problem that a pressurizing hemostasis component cannot be adaptively adjusted is effectively solved, and the applicability of the device and the accuracy of puncture and hemostasis operation are improved.

The invention discloses an intelligent head fixator for cerebral angiography. The intelligent head fixator comprises a headrest support of a U-shaped structure and two mounting assemblies. The installation assemblies are symmetrically arranged on the two sides of the headrest support. The mounting assembly is used for mounting the whole fixator at one end of a sickbed; at least two limiting assemblies are arranged on the outer portion of the headrest support, the limiting assemblies horizontally slide on the outer portion of the headrest support, the limiting assemblies do overturning movement at a specified angle in the sliding process, the limiting assemblies rotate from the horizontal state to the vertical state through overturning, and the limiting assemblies move to the specified position while horizontally sliding. Therefore, the head of the patient can be conveniently fastened subsequently; according to the head limiting device, a traditional manual operation mode is abandoned, an automatic operation technology is adopted to achieve rapid limiting of the head of a patient, the operation convenience is greatly improved through the improvement, the time for fixing and detaching the head is remarkably shortened, and the working intensity of medical workers is effectively relieved.