737 results about "Surgical risk" patented technology

A multi-dimensional system for assessing, coding, quantifying, displaying, integrating and communicating information relating to patient health and perioperative risk includes a mechanism for inputting patient information and providing an output relating to the patient health and perioperative risk. The output includes a score for the physical condition of the patient, a score for the degree of expected surgical risk and invasiveness, a score for other vital assessments of perioperative complexity, and alphanumeric codes for other factors that may require special preoperative preparation and planning.

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 multi-dimensional system for assessing, coding, quantifying, displaying, integrating and communicating information relating to patient health and perioperative risk includes a mechanism for inputting patient information and providing an output relating to the patient health and perioperative risk. The output includes a score for the physical condition of the patient, a score for the degree of expected surgical risk and invasiveness, a score for other vital assessments of perioperative complexity, and alphanumeric codes for other factors that may require special preoperative preparation and planning.

The invention discloses a three-dimensional kidney neoplasm surgery simulation method and a platform based on a computed tomography (CT) film. The method includes that firstly, a data base including object resources is built, multiple manners including CT film scanning are inputted into a CT faultage image, a sequence image is registered according to the sequence based on an outline gradient principle, a registered CT image is utilized to reconstruct segmentation tissue of an arterial phase, a venous phase and a lag phase by adopting of a three-dimensional reconstruction technology, and the segmentation tissue of the arterial phase, the venous phase and the lag phase are effectively fused in the same coordinate space. According to an imaging staging criteria and a treatment guideline of kidney neoplasm, and based on modeling results, various peration plan designing, operation stimulation, surgical risk analysis and response, and prognostic analysis are carried out, a personalized and benefit maximization treatment plan can be provided for an object, and skills and degree of proficiency of an operation can be improved, and the three-dimensional kidney neoplasm surgery simulation method can be used in medical teaching.

The invention provides a cardiovascular interventional virtual surgery simulation system based on force feedback. The cardiovascular interventional virtual surgery simulation system comprises a displacement collecting unit, a force feedback mechanism, a motor driver, a processor and a computer, wherein the displacement collecting unit comprises a guide wire displacement collecting unit, a balloon catheter displacement collecting unit and a guiding catheter displacement collecting unit; and the force feedback mechanism comprises a guide wire force feedback mechanism, a balloon catheter force feedback mechanism and a guiding catheter force feedback mechanism. The cardiovascular interventional virtual surgery simulation system is used for simulating the movement sense and the force sense in the process of inserting guide wires, catheters and the like in vascular intervention therapy. The surgery accuracy is high, the repeatability is good, the training cycle of doctors can be shortened, and the surgical risk is reduced.

The invention discloses a navigation system and method of a minimally invasive surgery. The navigation system comprises a composite endoscope body, a spatial positioning device and a surgery navigation server. The method comprises the steps that preoperative diagnostic images are subjected to three-dimensional model reconstruction and preoperative planning before navigation is performed; during the navigation, three-dimensional optical image signals and two-dimensional ultrasonic image signals of intraoperative organs and tissue are simultaneously acquired and three-dimensional reconstruction is performed, a three-dimensional model of the preoperative diagnostic images with preoperative planning information is subjected to organ and tissue deformation correction, and a three-dimensional optical model and a dynamic preoperative registration model are subjected to registration and fusion, so that the functions of optical navigation and ultrasonic navigation are simultaneously achieved, the intraoperative optical navigation can be switched to the intraoperative ultrasonic navigation continuously in real time, and a key position point, an optimum surgical entry point and an internal travel path of the intraoperative organs and tissue are continuously achieved in all dimensions from surfaces of organs and tissue to inner structure of organs and tissue. The navigation system and method of the minimally invasive surgery overcomes the defect of relatively single and discontinuous functions existing in the prior art, and is capable of lowering surgical risks.

The invention discloses a VR (Virtual Reality) eyesight correction method and device. The device comprises a photographing assembly, a display screen, a self-adaptive visual range adjusting mechanism and a processor; the photographing assembly is used for acquiring video data of a realistic environment according to vision angles of human eyes and transmitting the video data to the processor; the processor is used for carrying out virtualized processing on the received video data to convert the video data into 3D (Three Dimensional) data of a virtual environment, transmitting the 3D data to the display screen and carrying out quantification processing on an induction signal to obtain a visual range adjusting signal; the display screen is used for displaying the virtual environment of the 3D data; the self-adaptive visual range adjusting mechanism comprises a lens, a sensor for acquiring a distance between a scene and the human eyes and generating the induction signal and a lens adjusting assembly which is used for adjusting the distance between the lens and the display screen according to the visual range adjusting signal. By adopting the VR eyesight correction method and device provided by the invention, the surgical risk of eyesight correction can be reduced and the eyesight correction effect can be improved.

A multi-dimensional system for assessing, coding, quantifying, displaying, integrating and communicating information relating to patient health and perioperative risk includes a mechanism for inputting patient information and providing an output relating to the patient health and perioperative risk. The output includes a score for the physical condition of the patient, a score for the degree of expected surgical risk and invasiveness, a score for other vital assessments of perioperative complexity, and alphanumeric codes for other factors that may require special preoperative preparation and planning.

The invention relates to the technical field of medical robots, in particular to a robot vision servo control device of a binocular three-dimensional video camera and an application method of the robot vision servo control device. The robot vision servo control device comprises a robot subsystem and a vision control subsystem. The robot subsystem comprises a robot controller and a knuckle type six-freedom-degree robot. The vision control subsystem comprises the binocular three-dimensional video camera and a vision controller. The output end of the robot controller is electrically connected with the input end of the knuckle type six-freedom-degree robot. The robot controller and the vision controller are connected through both-way communication. The output end of the binocular three-dimensional video camera is electrically connected with the input end of the vision controller. The relative position of the robot and a target is detected in real time through the fixed type binocular three-dimensional video camera, the position error is calculated, and following rapidness and accuracy of the robot are guaranteed. Collisions are avoided, the target tracking accuracy of the robot in the medical surgery is effectively improved, the surgery safety is ensured, and the risk coefficient of the surgery is lowered.

The invention relates to a balloon expandable stent with a side-hole channel, which belongs to the technical field of medical devices implantable into the blood vessel of human body. One end of the balloon is communicated with a balloon catheter that can inject and suck out contrast agent; an expandable compression stent is arranged outside the balloon; a main intracavity channel and an intracavity sub-channel are respectively arranged in the balloon and the balloon catheter; one opening of the main intracavity channel is positioned at the side wall of the balloon catheter, and the other opening is positioned at the top of the balloon; one opening of the intracavity sub-channel is positioned at the side wall of the balloon catheter, and the other opening is positioned at the side wall of the balloon; the expandable compression stent is provided with a side hole opposite to the side-wall hole of the balloon. The invention has the characteristics of simple structure, convenient operation and use, time saving and safety; meanwhile, the stent can break through the forbidden zone that the interventional therapy can not proceed due to the bifurcation and lesion of the blood vessel of brain, can simplify the steps of treating the bifurcation and lesion of the coronary artery, lower the operation risk and difficulty of stent-aiding embolism operation for wide-necked aneurysms, enhance interventional embolism / surgical clipping ratio, and alleviate patients' wound and pain.

The invention relates to an anterior cervical and craniocervical fixing device which is of an integrally-formed three-section structure. The anterior cervical and craniocervical fixing device comprises a front section of a clivus fixing part, a middle section of an atlas fixing part and a rear section of a dentate fixing part. The front part of the clivus fixing part is oblique, a certain angle is formed between the clivus fixing part and the atlas fixing part, and thus the clivus fixing part is suitable for being tightly attached to anterior cervical clivus of a human body. The atlas fixing part is horizontal, extends to the two sides and then extends backwards to form the dentate fixing part. The axis fixing part extends on the rear part of the atlas fixing part, and thus the dentate fixing part is suitable for being tightly attached to the cervical 2 vertebral body of the human body. The fixing device special for fixing anterior cervical and craniocervical is proposed the first time, better stability is achieved, the anterior cervical and the craniocervical can be fixed together, body turnover for fixing posterior occipitocervical is not needed after anterior release and pressure reduction are conducted in the operation process of a patient, the operation risk is greatly reduced, the operation time is shortened, and recovery of the patient is facilitated.

The present invention relates to a Left atrial appendage occluder comprising an elastic closure disc. The left atrial appendage occluder also comprises an elastic fixing frame connected with the closure disc and located on one side of the closure disc. The fixing frame comprises a central end connected with the closure disc and a plurality of interconnected and bent struts, wherein at least one anchor is set near the end of at least one strut with the anchor pointing toward the closure disc. The left atrial appendage occluder has a stable structure, a good positioning and sealing effect on the cavity wall in the left atrial appendage, and it is easy to position repeatedly; it can also be recycled before separating from a conveyor. When in surgical operation, the left atrial appendage occluder can select the position area based on the actual shape and size of the patient's left atrial appendage, so the surgical risk is lowered.

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 discloses an artificial chordae implantation system provided with a detection device. The artificial chordae implantation system comprises a clamping device, a puncture device, a push device and a detection device, wherein the push device comprises a push catheter; the clamping device comprises a clamping push rod in which an artificial chordae is accommodated as well as a distal clamping head and a proximal clamping head which are cooperated for clamping a valve leaflet; the detection device comprises at least one probe; the probe is movably inserted into the push catheter; a detection outlet is kept in the clamping surface of the proximal clamping head or the distal clamping head, and correspondingly, a probe accommodating cavity, which is opposite to the probe outlet, is kept in the clamping surface of the distal clamping head or the proximal clamping head; and the distal end of the probe is accommodated in the probe accommodating cavity from the probe outlet when thedistal clamping head and the proximal clamping head are closed. According to the artificial chordae implantation system provided by the invention, it can rapidly and accurately detect whether the valve leaflet is clamped between the distal clamping head and the proximal clamping head or not via the detection device of a mechanical structure; the system is simple in structure, simple and convenientto operate and low in surgical risk; and the system can reduce production cost of apparatuses and reduce economic burdens of patients.

The invention provides an orthopedic surgery navigation system based on multimode image fusion, which comprises a binocular vision positioning camera used for acquiring space coordinates of a passiveinfrared reflection marking ball placed on a surgical instrument and the skin surface of a subject in real time; an image segmentation module used for accurately segmenting a spine part in an initialimage; a space coordinate registration module used for registering the space coordinates and the image coordinates; a surgical instrument calibration module used for establishing a conversion relationship between surgical instrument tip coordinates and passive infrared reflection marking ball coordinates placed at the tail end; a multimode image registration module used for registering an intraoperative cone beam CT image to a preoperative CT image; and a visual interface module used for establishing a three-dimensional image and displaying the position of the surgical instrument in the subject image in real time during a surgery. According to the invention, the real-time position of the surgical instrument in the body of the subject during the surgery can be accurately positioned, accurate and reliable navigation is provided for the orthopedic surgery, the surgical risk is effectively reduced, the surgical time is reduced, and the system is simple and convenient to operate and high inapplicability.

The invention provides a temperature controllable cryoablation system including a catheter, a fluid delivery unit and a control unit, wherein the catheter includes a central chamber and a balloon located at the distal end of the catheter; the central chamber is internally provided with an input channel for a frozen fluid to input into the balloon and an outflow channel for the frozen fluid to flowout of the balloon; the fluid delivery unit supplies the frozen fluid and discharges the frozen fluid; the control unit controls the fluid delivery unit to control the temperature of the balloon to approach the target temperature value according to the target temperature value. During the steady-state operation of the cryoablation system, by controlling the input pressure of the frozen fluid, theballoon temperature at the distal end of the catheter can approach the target temperature value, so that the surgical risk is relatively small, and an ablation mode is safer and more stable under thecondition reaching same ablation depth.

The invention discloses an adjustable cervical vertebra anterior approach operation position posing device used in the spine surgery. The adjustable cervical vertebra anterior approach operation position posing device comprises a bed board, a cross rod and a lower board, wherein a motor is fixed to the lower surface of the bed board, an output shaft of the motor is connected with an bevel gear, circular rings are fixed to the lower surface of the bed board and are in a sliding sleeved connection with drive shafts, the surfaces of rotation shafts are provided with a spiral insections, the bevel gear is meshed with the spiral insections of the rotation shafts, a double-rod design is adopted between the bed board and the cross rod, the neck is not blocked, and X-ray perspective can be directly performed. The device drives the bevel gear to rotate through the output shaft of the motor, the bevel gear drives the rotation shafts to rotate so as to achieve left-right movement of the rotation shafts, accordingly the distance between the head and the neck is adjusted to adapt to the neck lengths of different patients, a rotary lead screw and a connecting rod rotatably inserted into a lower board round hole are fixed through a stud to drive the lower board to rotate, accordingly different surgical angles are obtained, the surgical efficiency is improved, an the surgical risk is reduced.

The invention relates to a method for determining a puncture path, a storage device and a robot-assisted surgery system. The method includes the steps that medical images of a puncture object are received; a three-dimensional model of the puncture object is reconstructed according to the medical images; lesions, skin and other soft tissue are identified according to the three-dimensional model, wherein the other soft tissue comprises blood vessels and nerves; target points positions of the lesions are received; an optional skin area of a puncture point is determined according to the identifiedlesions and skin; a plurality of virtual puncture paths passing through the target point positions and the optional skin area are constructed; and at least one virtual puncture path meeting the constraint conditions is selected from the multiple virtual puncture paths to serve as the target puncture path, and the constraint conditions include not passing through the other soft tissue. According to the method for determining the puncture path, the puncture path in the puncture process is automatically determined and does not need to be determined by a physician according to the experience, andthus the surgical risk is greatly reduced.

The invention relates to a fibula near-end bone tumor focus removing guider and a preparation method thereof. The fibula near-end bone tumor focus removing guider comprises a patient CT (Computed Tomography) scanning film, a bone reconstruction device, a guider construction device and a 3D (Three-dimensional) printer, wherein a CT scanning film reading port is formed in the input end of the bone reconstruction device; the patient CT scanning film is arranged in the CT scanning film reading port; a CT scanning film data analysis module is arranged in the bone reconstruction device; the output end of the CT scanning film data analysis module is connected with the input end of the guider construction device; the output end of the guider construction device is connected with the input end of the 3D printer. By directly utilizing a digital visualization bone tumor focus guider 3D printing working platform designed in the invention, a clinician inputs the CT data information of a surgical patient, a guider can be designed and prepared, the surgical accuracy is greatly improved, and the surgical risk is reduced.

The invention relates to a medical continuously-applied titanium clip, which is mainly suitable for clipping blood vessels during a surgery on a human body. The medical continuously-applied titanium clip comprises a handle part and a clip rod part, and is characterized in that: the handle part is provided with a titanium clip in-place clipping device and a handle clip resetting device which are positioned inside the handle part; the titanium clip in-place clipping device is positioned at the rear end of the clip rod part and connected with the clip rod part; the handle clip resetting device is matched and connected with the titanium clip in-place clipping device; the push rod connector of the titanium clip is connected with the push rod of the titanium clip through a push rod pin; and a clipping ejector rod connector is connected with a clipping ejector rod through an ejector rod pin. The medical continuously-applied titanium clip is applicable to mini-invasive surgeries, can be applied continuously and fully automatically during surgical operation, is convenient and reliable in use and avoids influencing the filling of the titanium clip even through wrong operation occurs. The titanium clip has a protective device, allows a clip rod to rotate 360 DEG and can reduce surgical time, the amount of bleeding and surgical risks.

The invention discloses an automatic identification system for a surgical cutter, which comprises an external cutter and a controller. The external cutter is provided with a plug; and the controller is provided with a socket and a processing circuit. The system is characterized in that: the plug is provided with an electronic tag; the socket is provided with an identification coil; the identification coil is connected with the processing circuit; the identification coil acquires electromagnetic information of the electronic tag, and then sends a signal to the processing circuit; and the output end of the processing circuit is connected with the input end of a control motor. The system has the advantages that: the system can automatically identify the type of the cutter currently connected with the controller, and can automatically replace drivers of the corresponding cutters according to the type of the cutter; a doctor can set working parameters before a surgery, and directly assembles the cutter during the surgery to directly perform the surgery so as to shorten surgical time and avoid surgical risk caused by parameter setting errors.

The invention discloses an intelligent rotating speed regulating device and a regulating method applicable to a surgical power planing system, and relates to the technical field of surgical planing. The device comprises a planing cutter head, a motor, a current sensor, a driver, an information processing and control module, a pressure sensor and a signal and power transmission line, wherein the pressure sensor is arranged on the planing cutter head; the pressure sensor is connected to the information processing and control module; the motor is connected to the planing cutter head; the current sensor is connected to the motor; the current sensor is connected to the information processing and control module by virtue of the signal and power transmission line; the driver is connected to the motor; and the driver is connected to the signal processing and control module by virtue of the signal and power transmission line. With the application of the device, a to-be-planed tissue can be automatically identified and a planing rotating speed can be intelligently regulated, so that an operator can exclusively focus on an operation course; therefore, an operation progress is accelerated, patient's pain in the operation course is relieved and surgical risks are effectively reduced.

The invention relates to an endoscope lens flushing and drying device which comprises a flushing sprayer, a drying sprayer, a flushing pipe, a drying pipe, a flushing fluid connecting device, a pressure gas connecting device, a flushing switch, a drying spray switch, a pressure pump, an endoscope lens, an endoscope lens cone and an endoscope handle. The flushing sprayer and the drying sprayer project over the inclined surface of the endoscope lens cone, the flushing pipe and the drying pipe penetrate the endoscope lens cone and the endoscope handle, the pressure pump is externally connected with the flushing fluid connecting device and the pressure gas connecting device, and the flushing switch and the drying spray switch are positioned on the endoscope handle. The endoscope lens flushingand drying device has the advantages that the lens can be directly flushed and dried in a body cavity without being moved instead of being drawn out, wiped and then placed into the body cavity again when the lens is fuzzy in a surgical process, surgical operation is greatly facilitated, unnecessary time waste is reduced, and surgical risk is further reduced based on safety.

The invention relates to a clip applier shaft assembly and a medical surgical clip applier. According to the clip applier shaft assembly and the medical operation clip applier, a reset piece is arranged in a tube body; when a driving device of the medical surgical clip applier drives a main shaft to move towards the head end, a second reset piece deforms, and a first reset piece serves as a connecting piece to push a clip pushing assembly to move; then the main shaft makes contact with a percussion assembly and pushes the percussion assembly to move towards the head end, and a third reset piece deforms; and therefore, after final surgical clip percussion is completed and driving is stopped, the reset force generated by the reset piece enables the main shaft, the clip pushing assembly and the percussion assembly to reset. Therefore, according to the clip applier shaft assembly and the medical surgical clip applier, only the driving main shaft is arranged to move, the effects of clip pushing, clip feeding, percussion and device resetting are achieved, the operation process is simplified, and the operation risk is reduced.

The invention discloses a wound-free adjusting type splint holder support used for fracture of distal radius. The wound-free adjusting type splint holder support used for fracture of distal radius comprises a hand portion splint holder, a forearm splint holder, traction universal adjusting rods and a connector. The two traction universal adjusting rods are fixedly connected with the hand portion splint holder and the forearm splint holder respectively, the two ends of the connector are movably connected to the traction universal adjusting rods respectively, a first connecting device is arranged on the hand portion splint holder, and a second connecting device is arranged on the forearm splint holder. The wound-free adjusting type splint holder support used for fracture of distal radius combines the advantages of operation treatment by splint fixation and an external fixation support, is superior to other treatment methods in aspects of maintaining fracture alignment and avoiding surgical risks and complications, and has advantages in aspects of a distal radius anatomy structure and wrist joint function recovery.

The invention discloses an intravascular ultrasound catheter and a rapid forming method thereof. The catheter comprises a sleeve tube which is of a one-time formed structure. A transducer with a rotation driving wire is arranged at the far end of the sleeve tube, and the near end of the sleeve tube is connected with a driving / retreating device. A wire guide opening is formed in the far end of the sleeve tube. The method includes the steps that the sleeve tube is formed through a one-time forming method; the wire guide opening is formed in the far end of the sleeve tube. According to the intravascular ultrasound catheter and the rapid forming method thereof, the one-time forming method is used for forming the sleeve tube, production efficiency is greatly optimized, production cost is lowered, no connecting section exists, the reliability of the catheter is improved, and surgical risks are reduced.

The invention discloses a temporary filter with a far-end protector, which has high safety, is easy to collect and can be used for collecting thrombus. The temporary filter comprises a sheathing canal (1) and a filter screen (2) which is arranged on the sheathing canal (1) and can stretch for reducing the diameter, wherein a fixator (3) is arranged on the rear end of the sheathing canal (1); a protection umbrella is arranged in the sheathing canal (1), can move along the inner passage of the sheathing canal (1) and is in a contraction state; a collecting and guiding device is arranged and can be connected with the rear end of the sheathing canal (1) at any time. By utilizing the temporary filter, a thrombus falling problem which is caused by taking existing recycled filters or temporary filters out is solved, and surgical risks are reduced to the maximum extent.

The invention provides a calculus-removing mesh basket. The calculus-removing mesh basket comprises a handle, a sheath tube with the near end connected with the handle, a pushing-pulling rope sleeved with the sheath tube and a mesh basket part arranged at the far end of the sheath tube. The two ends of the pushing-pulling rope are connected with the mesh basket part, and the mesh basket part extends out of the far end of the sheath tube or is shrunk to the far end of the sheath tube under traction of the pushing-pulling rope; the mesh basket part comprises a plurality of mesh basket wires, a plurality of end caps and a safety releasing device, when the mesh basket part is located in the normal state, the far ends of the multiple mesh basket wires are fixed inside the end caps through the safety releasing device, and when mesh-basket-part calculus removing is subjected to incarceration, the far ends of the multiple mesh basket wires are released out of the end caps through the safety releasing device. According to the calculus-removing mesh basket, the mesh basket wires can be released out of the end caps through the safety releasing device when calculus removing is subjected to incarceration, and the mesh basket is further safely released out of the patient biliary tract; the problem that taking needs to be carried out through surgical operation when incarceration occurs is solved; meanwhile, the surgical risk is greatly reduced, and patient pain is reduced.