53 results about "Operative risk" patented technology

An apparatus and method of use are disclosed to treat urological disorders. The biocompatible device includes a handle, needle, dilator and sling assembly configured to be minimally invasive and provide sufficient support to the target site. In addition, the configuration of the sling assembly also allows the sling to be adjusted during and / or after implantation. The device and treatment procedure are highly effective and produce little to no side effects or complications. Further, operative risks, pain, infections and post operative stays are reduced, thereby improving patient quality of life.

An investment and a method for hedging operational risk associated with another's business events is disclosed. In particular, the method includes a seller receiving consideration from a buyer and, in return for the consideration, making a payment to the buyer upon the occurrence of a predetermined event. The event payment is for a predetermined amount and may be related to an expected economic loss to the buyer if the predetermined event occurs. The predetermined event is related to a complete or partial success or failure of a reference entity's product, service, or product and service, and may or may not cause an economic loss to the buyer.

An apparatus and method of use are disclosed to treat urological disorders. The biocompatible device includes a handle, needle, dilator and sling assembly configured to be minimally invasive and provide sufficient support to the target site. In addition, the configuration of the sling assembly also allows the sling to be adjusted during and / or after implantation. The device and treatment procedure are highly effective and produce little to no side effects or complications. Further, operative risks, pain, infections and post operative stays are reduced, thereby improving patient quality of life.

A computer implemented method and a computer system implementing the method provide enterprises with pre-emptive / proactive operational risk management. First, historical data on the occurrence of operational risk events and other internal business / external metrics and indicators are collected. This is followed by construction of a model for correlating the risk events with internal and external metrics and indicators. This can result in the estimation of the probability of occurrence of risk events and a model for the severity of a loss event (in termns of, say, dollar amount) as a function of the various variables that are related to or have leverage on the business operation. The Key Risk Indicators for the business are then identified based on the model. Following this, the identified key risk factors are forecasted for future time periods and used to identify early warnings of risk and is further validated. This is used as a basis for the identification and execution of appropriate proactive / pre-emptive risk management and mitigation actions.

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.

Risk in business management is analyzed based on a probabilistic network approach which quantifies the impact of operational risk on financial metrics such as Value-at-Risk (VAR) and / or Potential Losses (PL). This approach provides further capability to determine the optimal placement of one or more countermeasures within a system to minimize the impact of operational risks.

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.

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.

Among the four heart valves, the mitral is the most frequently affected by disease resulting in defective valve opening (stenosis) or incomplete closure (insufficiency). Most often this is due to distortion of the valve apparatus secondary to rheumatic or degenerative disease. These lesions, called “organic” require open heart surgery. In patients with coronary disease or with dilated cardiomyopathy the mitral valve can be insufficient although structurally normal. These valves are “functionally” insufficient. Because of the poor condition of these patients where open heart surgery carries a significant operative risk, less invasive percutaneous alternatives are being explored today. The present novel invention represents a radical departure from other procedures because it repositions the posterior papillary muscle utilizing a device located in the interventricular veins.

The invention provides a new percutaneous aortic valve replacing device which is characterized by the rational designation, convenient usage and low operational danger, which is to solve problems of inconvenient stitching of valve and cradle and high danger of using saccule to expand aortic valve in current aortic valve replacing device, the device is an automatic buckling cradle carrying biological valve, comprising cradle in nickel-tantalum alloy framework and trilobular one-way opening valve composed of pig heart bag. The nickel-tantalum alloy possesses functions of fixing and supporting, the trilobular valve is fixed tightly in the cradle. The product is characterized by the small injury, high safety, reduced complication caused by aortic valve replacement, and wide application prospect.

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.

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.

The invention discloses a pulmonary artery valve replacement device and a support thereof. The support comprises a valve fixing part, the top edge of the valve fixing part and a support part used for supporting a left pulmonary artery or / and right pulmonary artery are connected through a transitional section, and both the valve fixing part and the support part are of cylindrical structures. The transitional section is provided with a transitional arc surface fittingly contacting with the inner wall of blood vessels. The pulmonary artery valve replacement device comprises a pulmonary artery valve support, an artificial valve is arranged in the valve fixing part, and the valve fixing part is provided with a tectorial membrane below the artificial valve. The pulmonary artery valve support and the pulmonary artery valve replacement device can solve two problems that backflow of pulmonary artery valve and restenosis of pulmonary artery after pulmonary artery valve operation at the same time and are high in stability, operation risk of support displacement is avoided, damage of blood vessels are less prone to causing, stenosis of pulmonary artery branches is solved and repeated implanting of multiple supports is not needed.

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.

The invention discloses an atlantoaxial operation simulating system and method based on 3D visualization. The system comprises a database interaction module, a database module, a 3D reconstruction module, an operation plan design module, a simulated operation module, an operation risk analyzing and handling module and an after-operation analysis module. The simulation method of the simulation system comprises the steps of establishing the database, 3D reconstruction, designing an operation plan and simulating the operation and analyzing the risk. Information in the database includes name, gender, age, disease history and disease information. Image data includes scanning CT, MR and STL data of the atlantoaxial part. The system and method have the advantage of reducing the treatment risk anddifficulty effectively.

The invention relates to a digital skeleton operation repair method and system. The digital skeleton operation repair method includes the steps of carrying out CT scanning to affected portions of orthopedic patients to obtain corresponding image data, performing three-dimension reconstruction and resetting according to the image data of patients, carrying out design of implants, position determination of screw holes, type selection of screws and the like under guidance of model parameters, finally, printing simulated models (including operation assistant stents) of the affected portions of the patients by the 3D printing technology, carrying out a series of pre-operative simulation processes, such as repairing, positioning and fixing to the simulation models; thereby, increasing operability and precision of skeleton operation, reducing operative risk, and providing a new practice method for customization of patients.

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.

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.

Methods, computer-readable media, and apparatuses are disclosed for quantifying risk and control assessments. The risk includes both residual risk and direction of risk. Various aspects of the invention quantitatively compare the risk and control assessments against step-ahead losses using special regression models that are particularly applicable to this kind of data. The empirical comparison may be performed on both loss event frequency and severity in two different and separate dimensions. The empirical comparison may also be performed using losses extracted by even occurrence and event settlement dates in two separate dates.

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.

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.

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.

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.

The invention relates to medical operative instruments, in particular to a multifunctional medical electrocoagulator. The technical scheme includes that the multifunctional medical electrocoagulator comprises an insulating sleeve, a conductive hook body telescopically arranged to the insulating sleeve, and a rod body telescopically arranged to the insulating sleeve in a manner being identical with the hook body in direction. An electrocoagulation hook, an electrocoagulation rod and an attraction flusher are integrated into the same electrocoagulator, lesions can be treated better, convenience is brought to alternatively using the hook body and the rod body, and operative risks are lowered.

The invention discloses a lithotripsy device with double spiral curved surfaces. The lithotripsy device comprises a handheld stepper gear motor and a drill rod fixed onto the handheld stepper gear motor. The drill rod is fixed onto the handheld stepper motor by the aid of a connector at the tail of the drill rod, a knife tube is arranged in the middle of the drill rod, and the two spiral curved surfaces are arranged in the front of the drill rod; a cavity is arranged inside the knife tube, and the front end of the cavity is connected with the tail ends of the curved surfaces by a drain hole; blades are arranged at the edges of the curved surfaces. The lithotripsy device has the advantages that the handheld stepper gear motor drives the drill rod to rotate, calculis in a patient are ground and crushed by the blades, accordingly, the lithotripsy device is simple in operation, operative risks can be reduced, the lithotripsy cost can be lowered, the operative time can be shortened, the lithotripsy efficiency can be improved, economical burden on the patient can be relieved, and the lithotripsy device is high in economic and social benefits.

The invention discloses an Achilles tendon rupture non-operation walking exercise therapy device which comprises boot body provided with a boot upper and a boot sole. The boot sole is fixedly arranged on the bottom portion inside the boot body, a boot cylinder is formed on the upper portion of the boot upper, a boot heel is arranged on the lower part of the rear portion of the boot sole, a spring is arranged inside the hollow boot heel, the base end of the spring is fixedly connected with the bottom portion inside the boot heel, the top end of the spring only contacts with the rear portion of the boot sole in an abutting mode or is fixedly connected with the rear portion of the boot sole, and the upper portion of the boot cylinder is fixedly connected with an Achilles tendon lower pressing plate which is in the shape of a curve plate through a bandage. The structure of the therapy device is further simplified, operation and surgery are not needed, operation risks do not exist, therapy cost is lowered, wearing period and therapy time of an Achilles tendon rupture patient are shortened, Achilles tendon healing speed is improved, and limitation to walking gestures of the Achilles tendon rupture patient is not too much.