705results about How to "Improve the success rate of surgery" patented technology

The invention relates to an intracranial puncture locating method based on mixed reality and belongs to the field of neural imaging navigation. The method includes the steps of firstly, collecting CTscanning data of a patient with a marker, and creating three-dimensional models of the head and intracranial lesions of the patient according to the CT data; determining puncture targets, a puncture direction and puncture depth on the basis of the three-dimensional models, and creating an intracranial puncture path; finally, through rigid registration, overlapping the three-dimensional model of the head and the puncture path on a surgical part of the patient through a mixed reality technology, so that a surgeon can conduct puncture surgery under the guidance of the virtual three-dimensional models and correct puncture operation in real time according to the puncture path. Since the virtual three-dimensional modules are totally matched with a real scene, the virtual puncture patch is highlymatched with an actual situation, and therefore by conducting the puncture operation along the virtual puncture path, deviations or faults existing in traditional empirical operation are effectivelyavoided so that the purpose of improving the intracranial puncture precision and puncture efficiency can be achieved.

The invention provides a surgical robot adjustment system. Each mechanical arm is provided with an optical target lens, positions and Euler angles of the optical target lenses are measured by an optical tracking instrument, a calculation module calculates according to measured values to obtain a posture mapping relation of the optical target lenses, and a posture mapping relation of surgical instrument arms is obtained by calculation according to the posture mapping relation of the optical target lenses and a posture mapping relation between the surgical instrument arm of each mechanical arm and the optical target lens on the corresponding mechanical arm. A surgical robot controls postures of corresponding surgical instrument arms according to the posture mapping relation of surgical instrument arms, and accordingly movement control precision of the surgical robot is improved.

The invention discloses an intravascular stent of a composite structure; the intravascular stent comprises a stent main body, wherein the distal end of the stent is restrained as an adducted form by virtue of a tightening wire, and the tightening wire is degradable magnesium alloy or degradable iron alloy; one or more auxiliary wires are woven on the stent main body; when the stent is applied to blood vessel of brain, the auxiliary wire is pure platinum or alloy thereof, pure gold or alloy thereof, pure tungsten or alloy thereof, or pure tantalum or alloy thereof; and when the stent is applied to peripheral blood vessel, the auxiliary wire is cobalt-chromium alloy or stainless steel or tungsten or tantalum. The stent, when serving as a thrombus removal system for treating cerebral apoplexy, not only can be used for removing thrombus effectively for several times but also can be used for catching small thrombus flowing to distal end so as to prevent distal blood vessels from getting blocked; and the stent can be used for dilating stenosis or blocked brain blood vessel or peripheral blood vessel, so as to take an effect of dredging and reconstructing a blood flow. The stent can be repositioned and released, with high controllability; and the stent can be used for reducing operation difficulty and greatly improving an operation success rate.

The invention provides an anastomat for gastrointestinal tract anastomosis surgery and a production method thereof. The anastomat comprises an anastomosis nail and a base and is divided into two types, namely a combined type and an independent type. The anastomat is composed of degradable materials and medical barium sulfate and can be finally disintegrated to be powder to be removed from the body after being used up. An envelope is formed on the outer surface of the anastomat through polyacrylic resin and contains medicines such as sulfonamides and quinolones antisepsis and anti-inflammation medicines and adrenobazonum, dicynone and other hemostasis medicines, and the envelope can selectively perform medicine slow release and controlled release according to different pH physiological environments of gastrointestinal tracts.

The invention discloses a cervical pedicle screw alignment apparatus. The apparatus comprises a spinous process clamp and a connecting rod fixedly arranged on the spinous process clamp; the other end of the connecting rod is provided with a connecting plate; an angle adjusting rod is hinged on the connecting plate; a guide rod is inserted into the angle adjusting rod; the angle adjusting rod is also connected with a locking angle adjusting rod and a locking device for the guide rod; the guide rod is connected with an open-circuit conical cylinder into which an open-circuit cone is inserted; and the angle adjusting rod is also provided with an annular table and a sleeve gasket sleeved on the annular table, the sleeve gasket is axially and glidingly connected with the annular table, and the lateral surface of the sleeve gasket is provided with angle marking lines. The cervical pedicle screw alignment apparatus has the advantages of simple structure and convenient operation, can accurately position a pedicle screw implanting angle, and greatly improves the success rate of operation.

The invention discloses a three-dimensional positioning and guiding device for penetrating a vertebral pedicle through skin. The three-dimensional positioning and guiding device for penetrating the vertebral pedicle through the skin comprises a base, dip angle measuring devices and a measuring device supporting rod, wherein guiding grooves are arranged in length wise frame edges of the base, two dip angle measuring devices are matched on the measuring device supporting rod in a sliding mode, and an arc-shaped guiding groove is arranged in each dip angle measuring device. A bar-shaped hole is arranged in the measuring device supporting rod, a puncture needle guiding tube is in hinge joint with the dip angle measuring devices, and the puncture needle guiding tube penetrates through the bar-shaped hole. A guiding pin is arranged on the puncture needle guiding tube and is matched with the arc-shaped guiding grooves, marking needle fixing holes are arranged in the middle portion of the measuring device supporting rod, and two ends of the measuring device supporting rod are cylindrical segments. The measuring device supporting rod is matched with the guiding grooves in a sliding mode through sliding blocks, the cylindrical segments of the measuring device supporting rod extend out of the sliding blocks and are connected with a positioning rod, and the positioning rod is in the same plane with the measuring device supporting rod and the puncture needle guiding tube. The three-dimensional positioning and guiding device for penetrating the vertebral pedicle through the skin is capable of three-dimensional positioning and guiding and shortening the operation time, high in efficiency, accurate in guiding and capable of improving the achievement ratio of operation.

The invention discloses an analogue operation training system, and belongs to the field of cross-over studies coalescing a plurality of subjects such as an information technology, an automation technology and a machinery manufacturing technology. The analogue operation training system can be used for operation path planning before an operation and the daily operation training of a physician. Analogue operation software is developed, a brain model can be established according to magnetic resonance imaging (MRI) data, and a virtual operation can be performed based on the brain model in a computer virtual space; an operation operator is designed, and has six degrees of freedom, and the operating principle for the operation operator is the same as that of a ventriculoscope operating knife, so that real sense of operation is ensured; a field programmable gate array (FPGA)-based multi-path data acquisition system is designed, and can be used for acquiring six paths of coder data in real time, so that the system is high in real-time performance; and the system is high in brain model accuracy, real-time tracking performance, operation realism and automation degree and low in development cost.

Provided are a method and an apparatus for providing a guide image for image guided surgery, which is used so as for a doctor to perform accurate surgery, which an determine a position of a surgical tool for a surgery target region of a patient by calculating a position of a laparoscope/endoscope view and the position of the surgical tool for the surgery target region, based on a distance image calculated from a binocular image of a laparoscope/endoscope, prediction of a positional change of a body type/organ by gas injection based on a prior diagnosis image based on CT/MRI, recognition of a posture of the patient and a position of an abdomen through a 3D scanner, recognition of a position/angle of the surgical tool through a surgical tool sensor, and the like.

The invention relates to a device for regulating a nail cabin direction of a disposable intra-cavity coinciding instrument, and belongs to an auxiliary device of a disposable intra-cavity coinciding and stitching instrument for applying linearity in cavity tissue and a surgical stitching instrument for cutting tissue among linear coinciding instrument. The instrument comprises a steering draw hook, a rear draw hook, a steering transmission plate, a rotation handle, a direction locating ring, a spring, an angular regulation plate, an angular fixing plate, a rotation shaft, an upper rotation head cover, a lower rotation head cover and a fixed guide sleeve; the upper rotation head cover and the lower rotation head cover are installed at the front end of the fixed handle; the fixed guide sleeve is arranged between the upper rotation head cover and the lower rotation head; the upper part of the upper rotation head cover is provided with an installation hole; the periphery of the installation hole is provided a fixed groove; the steering transmission plate is installed in the installation hole in the upper part of the fixed guide sleeve; the front end of the steering draw hook is connected with an upper connector and a lower connector through connecting pins; the upper connector and the lower connector are connected with a nail cabin seat and a nail prop seat; the rear end of the steering draw hook is connected with the front end of the rear draw hook; and the rear end of the rear draw hook is connected with the steering transmission plate.

The invention provides a fractured end micro-movement and blood supply based fracture healing simulation system, relating to the field of biomedical engineering. The system is used for predicting a complicated process of fracture healing and exploring undetermined mechanisms in fracture healing. The system comprises a fracture healing simulation sub-system, an input module and a display module. The fracture healing simulation sub-system (1) comprises a geometry modeling module, a grid partition module, an environment initialization module, a biomechanical calculation module and a biological environment module. The biological environment module is used for creating a biochemical environment of callus in fracture healing so as to finish tissue differentiation in the callus. According to the system, blood supply is used as a dynamic variable and is introduced to the fracture healing simulation system, so that the fracture healing process can be simulated more accurately. The system can perform experiment simulation repeatedly, thereby helping to find out the best fractured end micro-movement value and the impact of blood on fracture healing.

The invention discloses a respiratory motion compensation method for lung percutaneous puncture. The method comprises the following steps: constructing a four-dimensional visualization model by usingpre-operative 4DCT images; extracting a respiratory movement trajectory, selecting a target point and a skin insertion point based on the four-dimensional visualization model and respiratory movementtrajectory, forming a puncture path, and determining an initial position, direction and puncture depth of a puncture needle; and during intraoperative puncture needle insertion, acquiring respiratorysignals of a patient in real time by a respiratory monitoring device, inputting the respiratory signals into a control system of a puncture robot, and analyzing characteristic parameters of the respiratory signals by the control system to guide the puncture robot to iteratively adjust the needle insertion speed to ensure that a needle tip reaches the target point at a specified time, so as to compensate for tumor displacement caused by breathing. The method provided by the invention allows puncture to be performed in a state of free breathing, has a wider application range, and helps to reducepain of the patient and improve the success rate of surgery.

The invention relates to a covered stent conveying and far-end positioning releasing system. A stent conveying mechanism comprises a core pipe assembly composed of a liquid filling port, a core pipe and a guide head, a middle pipe assembly composed of a middle pipe and a second control handle, and a sheath pipe assembly composed of a sheath pipe and a first control handle. A stent far-end positioning releasing mechanism comprises a guide wire, a guide wire rewinding system and a guide wire pulling ring. A stent and the guide wire are bundled and compressed in a stent loading area of the stent conveying mechanism through a stent bundling line. After the stent conveying mechanism conveys the stent to the designated position, the middle pipe assembly and the core pipe assembly are mixed, the sheath pipe is retreated till the stent is completely exposed, the guide wire pulling ring is unscrewed, the guide wire is slowly pulled backwards, the guide wire is retreated through the guide wire rewinding system and moves from the far end to the near end of the stent, the guide wire and a stent bundling line winding point are disengaged in sequence along with retreating of the guide wire, the stent is automatically bounced off and released after being disengaged from the stent bundling line, finally, positioning releasing of the stent from the far end to the near end is achieved, and positioning precision is improved.

The invention provides a multi-purpose percutaneous puncturing, channel building, fistulization and drainage device which consists of a pin sheath tube, a pin core, a separable injector interface, a guide wire, multiple layers of passage expansion tubes, working sheath tubes and drainage tubes. The left end of the pin core is provided with a pin core handle; a circular groove is arranged in an internal hole of the pin core handle and is meshed with the left end of the separable injector interface and the left end of the pin sheath; the pin core is inserted in the pin sheath tube; the separable injector interface is arranged in close sliding match at the left end of the pin sheath tube and a convex ring is arranged at the right end of the pin sheath tube; the innermost layer of passage expansion tube is arranged outside the pin sheath and the left end of the tube is connected with the convex ring; the working sheath tubes are arranged outside of the outermost layer of passage expansion tube and the left end of the tube is provided with a handle; the inside diameters of the working sheath tubes are the same as the adjacent multiple layers of passage expansion tubes. Compared with the prior art, the invention can reduce operative complications, improve operative success rate, reduce the work intensity of medical staff and can be applied to minimally invasive operations for various diseases due to the good universality.

The invention relates to an automatic conveying device for an intervention catheter used for the medical operation, in particular to a conveying operation device for an intervention catheter. The conveying operation device comprises a linear pushing module, an axis-around rotation module, a push-pull module, a front-end catheter twisting-conveying module, a catheter apparatus handle and a catheter outer sleeve clamping module, wherein the linear pushing module, the axis-around rotation module and the push-pull module are used for realizing the movements such as linear pushing, axis-around rotation and catheter front-end bending of the intervention catheter in an outer sleeve; and the clamping and fixing of the outer sleeve are realized through the catheter outer sleeve clamping device. The conveying operation device can assist the surgery operating staff in developing the precise operation of the intervention catheter in the surgical operation, compared with the traditional manual operation mode, the conveying operation device has the advantages that the catheter operation precision can be improved, the labor intensity of doctors can be reduced, and the operation efficiency can be improved.

The invention discloses a catheter of composite structure. The catheter comprises a high-molecular pipe on the outer layer, a tubular woven net or spring net on the middle layer and a smooth inner layer. The high-molecular pipe on the outer layer is made of nylon, nested polyetheramide elastomer, polyurethane or silicone rubber; the wall thickness of the far end of the woven net or spring net on the middle layer is smaller than or equal to the wall thickness of a woven net body or spring net body; the inner layer is made of polytetrafluoroethylene or high-density polyethylene or nested polyetheramide elastomer containing a friction coefficient reducing additive. Compared with a conventional plastic catheter, the composite catheter has the advantages that the same mechanical performance requirement is met, and the wall thickness can be greatly reduced; the passing performance, folding resistance and controllability of the composite catheter are greatly improved, the composite catheter can be pushed to deeper and smaller blood vessels under the same conditions, and the operative successful rate is increased.