733 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.

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.

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 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 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 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 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 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.