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.

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.

A surgical cast venting device comprises two elongate strips or two layers of flexible material, at least one of which is porous. The strips or layers are spaced apart from each other and extend parallel to each other. Flexible, solid spacer members are arranged between the two strips or layers and connect them together. These members form air passageways between adjacent spacers so that air is normally free to pass along the passageways. A moisture-absorbent fabric layer extends along an outer side of the porous strip or layer opposite the spacers. In an alternate version, there is a first strip which is porous and a series of substantially flat, flexible outer members arranged in a row from one end of the strip to an opposite end. The outer members are spaced from the strip and opposite side edges of the strip and of the outer members are aligned with one another.

A total ankle replacement system, novel surgical method for total ankle replacement, and novel surgical tools for performing the surgical method are described. The total ankle replacement system includes the calcaneus in fixation of a lower prosthesis body, thereby significantly increasing the amount of bone available for fixation of the lower prosthesis body and allowing the lower prosthesis body to be anchored with screws. The total ankle replacement system further includes a long tibial stem which can also be anchored into the tibia with, for example, screws, nails, anchors, or some other means of attachment. The novel surgical arthroscopic method allows introduction of ankle prostheses into the ankle joint through an exposure in the tibial tubercle. Various novel surgical instruments, such as a telescoping articulating reamer and a talo-calcaneal jig, which facilitate the novel surgical method, are also described.

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.

A spinal fusion surgery instrument for implanting and an intervertebral cage thereof are provided. The spinal fusion surgery instrument includes a body, a gripper subassembly, a first control subassembly, and a second control subassembly. The first control subassembly is provided to generate a displacement between a first connecting member and a second connecting member of the gripper subassembly to change the angle of gripper of the intervertebral cage. The second control subassembly is provided to enable a first gripper member and a second gripper member of the gripper subassembly separating smoothly from the dowel pins of the intervertebral cage. By means of the operation model, the spinal fusion surgery instrument may be controlled easily, and the orientation of the intervertebral cage may be promoted in the process of the surgery.

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 fillable with a vitreous substitute.

The invention relates to a method for manufacturing an operation simulation model. The method includes the following steps: 1. acquiring data and establishing a model in a computer; 2. using a Rapid Prototyping Manufacturing method to produce the model, an insertion part and a bottom plate which is intended for fixing the insertion part; 3. placing the insertion part to a basic model accommodating cavity of the model, and then filling a basic model material to the basic model accommodating cavity; 4. after the basic model forms, taking out the basic model from the model, dissolving and removing partially-removable insertion parts, forming partially-removable insertion part cavities; 5. performing secondary casting to respective partially-removable insertion part cavities which are produced from step 4; 6. heating at high temperature, melting and removing the residual removable insertion parts, forming residual partially-removable insertion part cavities; and 7. filling respective removable insertion part cavities produced from step 6 with different part specific materials. According to the invention, the method can help to increase training efficiency of medical staff.

The invention discloses an operation model imaging method and device based on the mixed reality technology and a storage medium, and the method comprises the steps: obtaining a lesion feature image and feature information of five sense organs of a target object; performing three-dimensional modeling according to the lesion feature image and the feature information of the five sense organs to obtain an operation model; and obtaining a solid model, and projecting the operation model to the solid model according to the feature information of the five sense organs. According to the scheme provided by the embodiment of the invention, the imaging registration of the operation model and the entity model is realized by acquiring the feature information of the five sense organs of the target object, and compared with the technical scheme in the prior art that the imaging registration of the operation model and the entity model is realized by acquiring the mark point image of the skin surface of the patient; according to the technical scheme, the problem of inaccurate projection of the operation model caused by skin displacement of the patient can be avoided, so that the pre-operation registration precision is effectively improved.

The invention discloses a method for producing a human tissue simulated operation model and a guide plate. The method for producing the human tissue simulated operation model an the guide plate comprises the following steps that CT / MR data about a human tissue are gathered, cleaning up and rebuilding are conducted, exact cutting of model space position data is conducted, based on a grinding model of an operation spot, operational information is added, an operation guide plate model is produced by reversed engineering, the obtained grinding model and operation guide plate model are converted to layer-by-layer cross-section data, and the layer-by-layer cross-section data are introduced to a 3D printer to conduct printing. According to the method for producing the human tissue simulated operation model an the guide plate, the accurate combination of a medical model and the guide plate is obtained by 3D printing, accurate simulated operation can be conducted with low cost and high speed, and a pre-operation simulation plan is executed accurately according to a pre-operation guide plate, so that operational risks are reduced, time on the operation is shortened, operational effect is improved, and great practical value is possessed.

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.

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 an operation model training method based on a three-dimensional modeling image technology. The method comprises the following steps: S1, acquiring three-dimensional image information of various tissues and organs of people of different body types, ages and sexes, and calibrating key points of the three-dimensional image information so as to obtain a three-dimensional training model set which comprises the various corresponding three-dimensional training model information; S2, establishing trigger performance information of the key points of the three-dimensional training model information; and generating a random emergency situation example set; S3, in accordance with the various tissues and organs, generating apparatus control and conversion parameters corresponding to various operation types; acquiring user's operation type training request information; and confirming the corresponding apparatus control and conversion parameters in accordance with the operation type training request information; and S4, extracting the three-dimensional training model information from the three-dimensional training model set as an object of operation simulation training; receiving user's operating information; and converting the user's operating information into operating information of the three-dimensional training model information via the apparatus control and conversion parameters.