30 results about "Surgical Models" patented technology

Laparoscopic instruments and cannulas are provided for performing laparoscopic procedures entirely through the umbilicus. Generally S-shaped laparoscopic instruments placed through the C-shaped trocar sleeves or through the cannula and instrument holder unit provide markedly improved degrees of instruments' freedom during trans-umbilical laparoscopic procedures.

Surgical instruments and their methods of use enable a surgeon to form a precut lamellar disk that is removed by the same through a single incision along the perimeter of the cornea. This may be done using one this one instrument. Another instrument enables the surgeon to scrap off adhering parts. One more instrument enables the surgeon to hold a folded cornea donor disk to avoid inverting the disk upon unfolding. Yet another instrument enables the surgeon to “iron out” wrinkles in the implanted donor cornea.

A medical instrument insertable through a cannula, the instrument comprising an elongate shaft; and an operative tip having a first jaw and a second jaw movable with respect to the first jaw. The operative tip disposed at a distal end of said elongate shaft and being disposed on said shaft for rotation relative to at least a distal end portion of said shaft about a longitudinal axis of said distal end portion.

The invention relates to medical instruments and methods for performing eye surgery to correct focusing deficiencies of the cornea. More particularly, the present invention relates to mechanical instruments known as microkeratomes, and related surgical methods for performing lamellar keratotomies and refractive surgery. The device is designed to create a flap of epithelium, or stroma and epithelial flap as is done now with LASIK. This will enable a new technique, ELF, or Epithelial Laser Flap, which will combine the advantages of LASIK and PRK, an older, but easier technique.

A reusable surgical model of the eye has mating anterior and posterior segments. The posterior segment has structures corresponding to those of the eye, including a hollow globe and an image of the fundus positioned upon an interior, posterior portion of the globe. A mating connector is peripherally formed about an open end of the globe. The anterior segment includes structures corresponding to those of the eye, including a pars plana, an opening in a region corresponding to an iris, and a lens positionable within the opening. The anterior segment has a peripheral connector which mates with that of the posterior segment. The lens is removably connected to the anterior segment, and has a focal length corresponding to a natural eye. A coating is applied to the fundus to enable simulation of a membrane peeling procedure, and the globe is Tillable with a vitreous substitute.

The invention provides a 3D printing device which is used for printing surgical implants or surgical models. The 3D printing device comprises a shell, a first printer, a second printer and a computer control system electrically connected with the first printer and the second printer at the same time, wherein the first printer and the second printer are assembled in the shell. The shell comprises a box body and a door body assembly assembled on the box body through a rotating shaft. The shell is provided with a containing space defined by the box body and the door body assembly, wherein the containing space is used for containing the first printer and the second printer. The first printer and the second printer are controlled by the same operation system of the computer control system. The first printer and the second printer contained in the shell of the 3D printing device can work at the same time under the control of the same operation system to print products with different sizes, the printing time is saved, and the working efficiency is improved; the printers can also work independently to meet different printing requirements. In addition, the 3D printing device is controlled by the same operation system, and cost can be reduced.

A vaginal cuff surgical model and methods of manufacture and use thereof. The model includes a body (resembling a vaginal cuff) and appendages (resembling uterosacral ligaments) extending from the body. The model (body and appendages) is formed of silicone, rubber, a polymer, or other suitable material with one or more layers of mesh embedded within the polymeric material. The embedded mesh permits suture between the components of the model. The surgical model permits surgical practice of this important component of a total hysterectomy procedure via suturing across the model and to the appendages.

The invention discloses a dental implant surgery simulation console. The dental implant surgery simulation console comprises a water containing tray, a pedestal, a support base and a bracket; the pedestal is arranged in the water containing tray, provided with two side walls and used for fixing the support base and the bracket; the support base is arranged in the pedestal, provided with two baffle plates, connected with the side wall of the pedestal and used for clamping a pig scapula operation model; and the bracket is arranged above the pedestal, provided with two support plates and used for supporting the pig scapula operation model. The dental implant surgery simulation console is designed according to the position and the angel of a patient undergoing a surgery on a dental chair, a dentist can practice the dental implant surgery on the dental implant surgery simulation console by taking the side surface of a pig scapula as the operation surface, and the dentist can simulate the operation of the dental implant surgery on different parts of the dental implant surgery simulation console according to needs to master the essentials of the dental implant surgery and the handfeel.

The invention provides a virtual anatomy teaching system based on a mixed reality technology, and the system comprises a surgery model construction module which is used for obtaining a medical image, obtaining a 3D surgery model through three-dimensional rendering, carrying out the preprocessing and segmentation of the 3D surgery model, carrying out the contour surface extraction of the segmented model, carrying out the surface reconstruction, and carrying out the teaching of the 3D surgery model. Uploading to a component adding module; the component adding module is used for acquiring an operation model tool, adding collision to the 3D operation model and the operation model tool, modifying collision attributes, and uploading the collision attributes to the first client; the first client is used for displaying the 3D operation model, acquiring a user simulation operation, and updating the 3D operation model in combination with the collision attribute; and the view angle sharing module is used for acquiring the view angle of the first client and transmitting the view angle of the first client to the second client by using the packaged network video stream protocol and the server distribution function. Operation simulation and simulation teaching are realized, and the practical operation ability of the user is improved.

The invention provides a method for establishing a surgical model by using animal organs. According to the model established by the method, the medical practitioner can perform repeated and vivid skill practice and can set up different lesions, different types of operation training are realized, and meanwhile, the problems of high living animal experiment cost and the like in related research training are avoided.

The invention relates to the technical field of operation virtual training, in particular to a virtual reality-based double eyelid forming operation training system and method and a storage medium, and the training system comprises an operation model library, a VR equipment module, an instrument model library, a training monitoring module and a scoring module. The operation model library is used for providing an environment model and a three-dimensional organ model, and the VR equipment module is used for generating and displaying corresponding virtual operation environments and organs according to the environment model and the three-dimensional organ model selected in the operation model library. The instrument model library is used for providing an instrument model to perform surgery operation on organs displayed in the VR equipment module, immersion type surgery operation training can be performed on personnel, the authenticity of double eyelid forming surgery training is improved, the surgery operation level condition can be judged according to the comprehensive score of surgery training, and the training efficiency is improved. And the training effect of the double eyelid forming operation is improved.

The invention provides a varicose vein operation model assembly. The varicose vein operation model assembly comprises a lower limb model main body, a soft core part, a femoral vein hose, a first fixing part which is arranged on the outer side wall of the lower limb model main body, a great saphenous vein flexible pipe which is arranged in the first fixing part in a penetrating manner, and a control mechanism, wherein the first end of the great saphenous vein flexible pipe is communicated with the first interface on the femoral vein hose; the control mechanism is arranged outside the lower limb model main body, the control mechanism comprises a pump body, a first reversing valve, a first control valve and a controller, and the first reversing valve and the first control valve are both connected with the controller; and the pump body is communicated with the first end of the femoral vein hose, the second end of the femoral vein hose and the second end of the great saphenous vein flexible pipe through the first reversing valve, and the first control valve is arranged between the second end of the great saphenous vein flexible pipe and the first reversing valve. According to the technical scheme, the problem that the learning period of varicose vein surgery practice is long in the prior art is effectively solved.

The invention discloses a method and device for evaluating an aortic dissection far-end crevasse plugging treatment scheme. The method comprises the steps: (1) collecting medical image data of a patient who is not subjected to a TEVAR operation, extracting a specific three-dimensional model of the patient, building a preoperative model of the patient, a plugging main tear (virtual TEVAR operation) model, and a plugging far-end crevasse (virtual far-end crevasse occlusion surgery) model for hemodynamic calculations; (2) calculating hemodynamic indexes of the patient before and after a virtual TEVAR operation and before and after a virtual far-end crevasse occlusion operation, so as to quantify the influence of the TEVAR operation and the far-end crevasse occlusion operation on hemodynamics between true and false aorta cavities; and (3) according to the hemodynamic indexes, further evaluating the surgical scheme for placing a far-end crevasse plugging device. The method and the device aim to display the blood flow state in a B-type aortic dissection by using hemodynamic indexes and provide quantitative judgment indexes for the treatment effect.

A prosthesis, radiation bolus, pre-surgical model, or burn mask formed using a rapid prototyping device, such as a three-dimensional printer. In some exemplary aspects, the prosthesis includes a scaffolding and a coating at least partially covering the scaffolding. Methods and systems for forming the prosthesis, radiation bolus, pre-surgical model, or burn mask are also provided.

The invention discloses a periodontal surgical model former for teaching and a using method thereof. The periodontal surgical model former for teaching comprises a raw material mechanism, a support frame, a control panel, and a feeding mechanism, the support frame is arranged at the front end of the raw material mechanism, a controller is mounted in the raw material mechanism, an injection mechanism is arranged at the front end of the support frame, a mold mechanism is arranged on the lower side of the injection mechanism, the feeding mechanism is arranged in the support frame, the control panel is arranged on one side of the support frame, the injection mechanism includes a piston rod, an injection tube, a push plate, and a movable plate, and the injection tube is arranged at the lower end of the piston rod. The periodontal surgical model former for teaching and a using method thereof have the beneficial effects that two manual and automatic modes can be set, and the practicability ofthe device is improved; a second template and a first template are connected by a magnet, disassembly is convenient, a rotary motor can rotate during injection, and the filling uniformity is improved.

The embodiment of the invention comprises an intracranial puncture operation teaching method and device and a storage medium, and the method comprises the steps: obtaining an operation model of a target object, and the operation model comprises a head model and a focus model; performing three-dimensional printing according to the head model and the focus model to obtain an entity teaching model; and projecting the preset puncture path and the focus model to an entity teaching model by using mixed reality equipment according to the head model, so that a user performs puncture training according to the preset puncture path and the focus model. According to the invention, the focus model and the preset puncture path are projected to the entity teaching model by using the mixed reality equipment, and the focus model and the puncture path generated by projection are used for assisting students in performing simulated operation training on the entity teaching model. According to the invention, simulation teaching of the intracranial surgery can be realized, students are helped to understand the surgery operation process, and the learning efficiency is improved.

The embodiment of the invention provides a method for automatically generating a three-dimensional operation model based on operation records. The method comprises the following steps: acquiring intraoperative medical record data of a patient, and extracting operative terms from the intraoperative medical record data; matching the operation term with a pre-stored operation model material, and determining a required operation model material; and combining the required operation model materials to generate a three-dimensional operation model. In this way, the operation process can be restored automatically in a graphical mode, and the models can be combined and displayed flexibly.