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52 results about "Operative risk" patented technology

Cardiopulmonary bypass or cpb monitoring tool

A cardiopulmonary bypass or CPB monitoring tool includes: a preoperative information module; a preoperative calculation module able to estimate a body surface area, blood volume, and theoretical weight; a priming module able to determine priming constitution, volume and flow to achieve a hemodilution target; an operation risk module for calculating operation risk; a drug calculation module able to determine medication doses; a timer module with timers that can be activated during operation; a data collection module with an interface and drivers enabling data collection from a wide variety of extracorporeal pumps and oxygenators during operation; an events module with retroactive manipulation of the time of an event; a printing report generation module; a graphic user interface; and a configuration module.
Owner:HEARTWARE INC

Individuation minimal invasive vertebral pedicle screw entering navigation template and preparation method thereof

InactiveCN104644258ANail fastAccurate nailingSurgeryPersonalizationLigament structure
The invention relates to an individuation minimal invasive vertebral pedicle screw entering navigation template and a preparation method of the navigation template. The preparation method of the navigation template includes: reconstituting a three-dimensional model of a target vertebra based on a medical image; conducting the screw entering porous channel virtual analysis design on the three-dimensional model and defining a screw entering porous channel; taking feature points from the three-dimensional model, designing a vertebral pedicle screw entering navigation template prototype and obtaining a navigation template which fully fits for the vertebral body through the Boolean calculation; and manufacturing the navigation template through 3D printing and other processing methods. The individuation minimal invasive vertebral pedicle screw entering navigation template closely fits for the mastoid process and the lamina arcus vertebrae, is high in stability, ensures accurate implanting of the vertebral pedicle screw, avoids direct contact with the spinous process, reduces peeling of the muscle ligament, realizes minimal invasion, is applicable to various situations such as the vertebral distortion and slipping and the rupture of the vertebral pedicle, prevents slipping and distortion during screw entering due to the arrangement of a finger pressing board, and is convenient to operate and low in the requirement for doctors, degreases the operation risk, improves the operation efficiency and reduces the operation cost further.
Owner:苏州昕健医疗技术有限公司

Real-time evaluation and correction method in spine posterior approach operation

The invention discloses a real-time evaluation and correction method in a spine posterior approach operation. Each segment of the spine is divided by an X ray photo and is matched with each corresponding segment of a 3D model which is constructed by CT (Computed Tomography), rigid body transformation is estimated, and thus a rectification result can be obtained; on the basis, the whole spine is spliced, a real-time three-dimensional spine form of a patient on an operating table is reconstructed, an operation effect is estimated in real time, the orientation for placing a nail is corrected in time, the incorrect nail placement in an operation is remedied, the operation risk is reduced, and the success rate of the operation is improved. According to the method, the spine segments belong to rigid bodies, the whole spine belongs to a non-rigid body, and 2D / 3D images of a non-rigid body joint target are subjected to registration; the 3D positions of a pedicle screw is estimated by 2D images, and the 3D form of the spine of the patient after operation nail placement is reconstructed; the problems that visual real-time monitoring and correction lacks in the existing spine posterior approach operation, and the danger existing in the operation is not remedied in time are solved.
Owner:THE THIRD XIANGYA HOSPITAL OF CENT SOUTH UNIV

Self-locking acetabular posterior-wall posterior-column anatomical steel plate

ActiveCN101972162ACorrect nail directionSolve the defect of sliding wireInternal osteosythesisFastenersFracture reductionBones stress
The invention discloses a self-locking acetabular posterior-wall posterior-column anatomical steel plate which comprises a steel plate body, a self-locking bolt and an auxiliary sleeve pipe, wherein the auxiliary sleeve pipe is used for controlling the installation of the steel plate body, and a locking-hole internal thread is respectively manufactured at the tops of a first self-locking hole, a second self-locking hole and a third self-locking hole; an external thread is respectively manufactured on the self-locking bolt and the auxiliary sleeve pipe, and the external thread can be in corresponding spinning fit with the locking-hole internal thread; the design per se permits appropriate torsion and bending in a three-dimensional space, is convenient for molding so as to be better fitted with individualized bones and is used for bearing the moving loads of joints, so that fractures are normally healed, and complications, such as fracture later-looseness, shift, pains, bone stress shielding and the like are reduced; the success ratio of fracture internal fixation operations is improved, the molding in the operations is avoided, the blood loss in the operations is reduced, the anesthetic time is reduced, the infected chances are reduced, and the operative risk is lowered; and the interference of built-in materials for sciatic nerves in the internal fixation of the operations is reduced.
Owner:李明

Edentulous-jaw implanting method for designing and making temporary dentures before operation

The invention relates to the field of design and making of temporary dentures before operation with utilization of implant body position information in implant body design software in an oral implanting technology, in particular to an edentulous-jaw implanting method for designing and making the temporary dentures before operation. The method comprises steps as follows: 1), collecting basic information; 2), making a radiation guide plate and occlusal records; 3), designing the position of an implant body and storing the position information; 4), designing and making an implanting guide plate; 5), designing and making the temporary dentures; 6), wearing the temporary dentures immediately after implantation. The method has the beneficial effects as follows: 1, with the adoption of system design and digital processing, operative risks of doctors and working intensity of technicians during postoperative repair are effectively reduced, and the working efficiency is improved; 2, a perfect process is established at the beginning of design, thus, an integrated temporary denture bridge can be designed and made or processed, the strength of the temporary dentures is guaranteed, and the temporary dentures are prevented from being broken in a use process by a patient.
Owner:北京西科码医疗科技股份有限公司

Bending large-angle base station device

InactiveCN101744665AAchieve the purpose of repairAvoid areas of inferior bone massDental implantsSupporting systemOrthodontics
The invention relates to a bending large-angle base station device which is applied to the oral implantation recovery, and provides a base station device which is novel and can implant a common implant at an appropriate position on the side surface of the upper jaw for recovery without sinus maxillaries lifting surgery for solving the defects that in the implantation process when the bone weight of the side surface of the upper jaw is not enough, complicated bone increasing or sinus maxillaries lifting surgery needs to be done, the surgery complicacy is high, the surgical trauma is large, the surgery risk is high, the surgery cost is high and the like. A bending base station seat (3) which is inserted into the implant (1) and a dental corona base station (6) form a dental corona supporting system; the dental corona is arranged on the base station (6), is connected with the base station seat (3) through a conical surface (12) and an octagonal cylindrical surface (13), and fastened by a fastening bolt (2); the connection between the dental corona base station (6) and the base station seat (3) is also realized by a conical surface (10) and an octagonal cylindrical surface (9), and the fastening is realized by a fastening bolt (7); and consequently, excellent sealing performance, anti-rotation performance and circumference directional performance can be achieved.
Owner:WEIHAI WEIGAO BIOTECH

Method and device providing convenience for propping up and maintaining wound and performing operation

The invention discloses a method and device providing convenience for propping up and maintaining a wound and performing an operation. The device comprises a positioning adjustment part, wherein the positioning adjustment part comprises a fluted disc, and the fluted disc is provided with clamping seats used for mounting pull rods, wherein one part of pull rods are used for mounting a grasping hookpositioning mechanism with an adjustable angle and/or a grasping hook positioning mechanism with an adjustable height; the other pull rods are used for mounting a camera fixing mechanism, and the camera fixing mechanism is provided with a tubular medical camera used for stretching into the wound for shooting. The method and device providing convenience for propping up and maintaining the wound and performing the operation have the advantages that a good view is provided for a doctor; a special person does not needed to be responsible for maintaining the wound, and positioning is precise and stable; the nerves are retracted to avoid the contact, thereby reducing the operative risk; image signals are transmitted to a display to avoid that situation that the cervical vertebra injury and excessive fatigue of the doctor affect the personal health and operative effect due to the long-time operation; videos can be recorded for teaching use; the device is designed to be disposable to avoid infection caused by the reuse.
Owner:ACME TEK MEDICAL DEVICES INT

Built-in aspirator for laparoscope operation

The invention discloses a built-in aspirator for laparoscope operation, which comprises an aspiration head, a hose, an aspiration switch and a washing switch, wherein one end of the hose is communicated with the aspiration head, the other end of the hose is divided into two pipelines, one of the pipelines is connected with the aspiration switch, and the other pipeline is connected with the washing switch; and an aspiration hole I communicated with the hose and a grasping component for allowing forceps to grasp are respectively formed on the aspiration head. In the operation process, the hose of the aspirator enters enterocoelia from a small hole on an abdominal wall and shares the same small hole with a trocar, so the aspirator is not needed to be removed to leave space for other instruments in the operation process, and the position where the aspirator enters the abdominal wall is not changed any more in the operation process; and the aspirator is in the enterocoelia all the time, sothe aspiration head can be grasped by using the forceps at any time to absorb exudation and seepage, operators absorb the exudation and the seepage instantly and conveniently, and the visual field iskept distinct all the time in the operation process. Simultaneously the trouble of replacing the instruments is reduced, the labor strength of the operators is relieved, the operation time is shortened, and the operation risks are reduced.
Owner:THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA

Conveying system and coated system

The invention provides a conveying system and a coated system, and relates to the technical field of medical treatment equipment. The conveying system comprises a first wire guiding cavity, a second wire guiding cavity and a supporting component, the included angle between a body stent and a branched stent can be guided through the first wire guiding cavity and the second wire guiding cavity to adapt to the included angle between the aorta and the branched blood vessel, and therefore the body stent and the branched stent can be accurately controlled to be conveyed to a correct diseased position. The coated system comprises the body stent, the branched stent, a fixed component, a second control component and the conveying system. Through the conveying system, the body stent and the branched stent are conveyed to the aorta and the branched blood vessel, the technical problems that in the prior art, no branched coated stent exists, in an operation for the branched blood vessel, difficulty is high, operation time is long, and the requirements for drifting away from the branched blood vessel to enter from the far end of branched positions can not be met are solved, and the technical effects that release is controlled, operation risks are reduced, the success rate of the operation is increased, and the safety of patients is guaranteed are achieved.
Owner:APT MEDICAL HUNAN INC +1

Medical photosensitive resin jet multicolor 3D printer

The invention discloses a medical photosensitive resin jet multicolor 3D printer. The printer comprises a sectional material framework, a forming platform, a peristaltic pump, a resin storage box anda printing head, wherein a lifting mechanism is connected to the center of the interior of the sectional material framework, the resin storage box is arranged on a fixing frame of the top of the sectional material framework, the peristaltic pump is fixed below the resin storage box, second guide rails are fixed at the two ends of the top of the sectional material framework, sliding seats are arranged on the second guide rails in a sliding manner, first guide rails are inserted between the sliding seats, a sliding block is connected between the first guide rails, and the printing head is arranged at the bottom of the sliding block. According to the printer, the sectional material frame, the forming platform, the peristaltic pump, the resin storage box and the printing head are arranged, sothat the rapid forming can be carried out on the printed liquid photosensitive resin effectively, a body tissue structure can be effectively distinguished through different colors of the resin, the doctor can quickly recognize the body tissue data of a patient and judge the lesion of the patient, the misjudgment and the misdiagnosis of diseases are reduced, the operative planning is facilitated, and the operative risk is reduced.
Owner:阜阳职业技术学院

Visual hydrothorax and ascites injection and suction device and auxiliary device thereof

The invention relates to a visual hydrothorax and ascites injection and suction device and an auxiliary device thereof. The auxiliary device comprises that a flexible endoscope embedded with an optical fiber lighting unit is arranged inside a puncture trocar for long-distance observation and real-time shooting, so that medical care personnel can in real time observe puncture position and conditions as well as surgical operation position and conditions; a needle tip is provided with a certain inclined surface to avoid secondary injury to punctured positions due to inclination or movement of a sharp puncture needle; under guidance of real-time images, complications caused by conventional blind puncture can be avoided; meanwhile, ultra-micro optical fiber imaging can avoid radiation influenceand acoustic channel limitation and be applicable to bedside operation, thereby providing a safe and reliable technical means for manual hydrothorax and ascites injection and suction. The visual hydrothorax and ascites injection and suction device is simple in structure, reasonable in design, accurate in puncture positioning, capable of saving operation time and reducing injury of patients as well as operation risks, high in practicality and reliability and easy to generalize and apply.
Owner:THE SECOND AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIV

Electrocoagulation irrigation and suction apparatus

The invention relates to electrocoagulation irrigation and suction apparatus. The electrocoagulation irrigation and suction apparatus comprises a handle; a conductive rod is arranged at the front endof the handle; the periphery of the conductive rod is sleeved with an insulating tube; an electrocoagulation working head is arranged at the front end of the conductive rod; the electrocoagulation working head stretches out of the front end of the insulating tube; a suction and irrigation device as well as an electrocoagulation and electrosection device are provided inside the handle; the conductive rod is hollow; a conducting part connected with the electrocoagulation and electrosection device as well as a connecting part connected with the suction and irrigation device are provided at a rearend of the conductive rod; the conducting part is arranged between the connecting part and the insulating tube; and the conducting part is electrically connected with the electrocoagulation and electrosection device. By adopting the above technical scheme, the electrocoagulation irrigation and suction apparatus integrates electrocoagulation, irrigation and suction, so that single-hand operation is facilitated, thereby saving combination of hands and feet or two-handed operation; and thus, surgical operation becomes more convenient with operative risks reduced. Moreover, operation is carried out by adopting the same conductive rod, so that double rods are not required; and thus, sight blocking is not caused, so that "curettage and aspiration" operation becomes more convenient.
Owner:陶崇林

Positioning method and system for bone cutting plane of high tibial osteotomy

Embodiments of the invention provide a positioning method and system for a bone cutting plane of high tibial osteotomy. The method includes the following steps: determining a reference plane of the upper end of a tibia in a three-dimensional model of lower limbs, and arranging an axis perpendicular to a normal position reference plane along a planned shaft point on the three-dimensional model of the lower limbs; translating the reference plane of the upper end of the tibia to make the reference plane of the upper end of the tibia pass through the shaft point, and rotating the reference plane of the upper end of the tibia with the axis as a rotation shaft to a target cutting position; and selecting a to-be-cut square area in the reference plane of the upper end of the tibia as the bone cutting plane of the three-dimensional model of the lower limbs. Embodiments of the positioning method and system strictly guarantee that the bone cutting plane passes through the planned and determined shaft point; the bone cutting plane is determined by rotating the reference plane of the upper end of the tibia along the axis, it can be ensured that in a process of bone expanding, two parts of a bone cutting surface only have deflection around the axis, and bones are prevented from being misaligned in other directions; and compared with the prior art, there is no need relying on doctor's experience and repeated fluoroscopy, and the operation duration and an operative risk are reduced.
Owner:BEIHANG UNIV +1
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