78 results about "Surgical technology" patented technology

The present invention provides video and audio assisted surgical techniques and methods. Novel features of the techniques and methods provided by the present invention include presenting a surgeon with a video compilation that displays an endoscopic-camera derived image, a reconstructed view of the surgical field (including fiducial markers indicative of anatomical locations on or in the patient), and/or a real-time video image of the patient. The real-time image can be obtained either with the video camera that is part of the image localized endoscope or with an image localized video camera without an endoscope, or both. In certain other embodiments, the methods of the present invention include the use of anatomical atlases related to pre-operative generated images derived from three-dimensional reconstructed CT, MRI, x-ray, or fluoroscopy. Images can furthermore be obtained from pre-operative imaging and spacial shifting of anatomical structures may be identified by intraoperative imaging and appropriate correction performed.

A new, quick, simple, efficient, safe, and reproducible surgical technique for the treatment of female urinary incontinence, in which the posterior urethra is suspended using a tape passed through the obturator orifices from inside (underneath the urethra) to outside (thigh folds). A variety of specifically designed surgical instruments are utilized to perform this operative procedure.

A method for determining cardiac status comprises for a given patient, constructing a patient-specific, three-dimensional, computational model of the patient's heart; and executing the constructed computational model, said executing generating a quantitative analysis of cardiac function. A method of performing cardiac surgeries comprises: a) assessing surgical options based on a patient-specific, three-dimensional, computational model of a patient's heart; and b) performing surgery based on one or more of the surgical options. A computer system comprises: a) a data source containing data of a patient's heart; b) a modeler coupled to receive data from the data source, the modeler generating a patient-specific, three-dimensional, computational model of the heart based on the heart data; and c) a processor routine for computationally providing information about a certain cardiac function using the three-dimensional heart model and for applying computational, quantitative analysis of the cardiac function, wherein the quantitative analysis of the cardiac function provides an assessment for surgical options, optimizing surgical techniques, or predicting outcomes.

A surgical apparatus, system and methodology are provided that may be utilized to treat a plurality of medical conditions. A robotic apparatus may be utilized in the treatment of a medical condition or to assist a medical professional in a surgical procedure. Additionally, the robotic apparatus and system may be utilized during a surgical procedure to provide guidance and to narrow the margin of error. In an exemplary embodiment, a scan may first be performed on a patient to determine a plurality of surgically necessary characteristics, such as bone density, locations, and the like. A virtual treatment plan may be provided by the system. An active and/or passive robotic apparatus may be provided to assist in the surgical technique. The robotic apparatus may be an active robotic which includes surgical tools whereby the medical professional may perform the surgical technique with the assistance of the active robotic apparatus.

This invention provides a surgical method to treat hip diseases, including Legg-Calve-Perthes disease or developmental hip dysplasia. This method includes several surgical techniques: a transverse osteotomy of the posterior portion of supraacetabular portion, an oblique and inclined osteotomy of the anterior portion of the supraacetabulum, detachment of a bone block from iliac crest, anterolateral displacement of the distal fragment, and insertion of the bone block into the distracted space of the osteotomy site.

Apparatus and methods are described allow the techniques of endoscopic and laparoscopic surgery to be combined into a minimally invasive hybrid surgical technique called NOTES-assisted laparoscopic surgery. Manual and robotic-controlled versions of a modular laparoscopic tool are described having a small diameter shaft that is delivered laparoscopically to a surgical site. Larger diameter working tips are delivered through a NOTES delivery tube inserted to the surgical site through a natural orifice and joined to the shaft of the modular laparoscopic tool. Larger diameter working tips improve the effectiveness of the modular laparoscopic tools and the number and size of laparoscopic ports used can also be reduced.

A trapezium prosthesis is provided for replacement of a diseased trapezium of a hand. Also shown is a surgical technique for placement of the prosthesis. Rather than utilizing hemiarthoplasty or total joint replacement, the trapezium is replaced with the prosthesis made of a material other than silicon. The prosthesis has specially prepared surfaces to encourage the growth and attachment of surrounding tissue.

The present invention relates to a method for preparing a contact lens-shaped amniotic dressing and a contact lens-shaped amniotic dressing prepared therefrom for treating ocular surface diseases, which does not require the use of sutures or an adhesion material. The inventive contact lens-shaped amniotic dressing is capable of solving the problems associated with suturing an amniotic membrane, e.g., highly delicate surgical techniques of suturing, long surgery time, stitch abscess, granuloma formation, tissue necrosis, and discomfort of patients; and the problems associated with the use of a support, e.g., the elimination of the support by eye blinking, breaking of the support, and discomfort.

An orthopaedic implant fixation using a surgically created bone cavity as a mold for forming an anchor from an in-situ hardenable material. An in-situ formed anchor of the present invention is especially useful for attaching an implant to osteoporotic cancellous bone. The injectable nature of the in-situ formed anchor allows implants to be adapted to minimally invasive surgical techniques. The present invention can be adapted to numerous implants or implant system components to include fasteners, pins, nails, intramedullary nails, and suture anchors. Applications include bone fracture fixation, bone fracture prevention, and soft-tissue repair.

Apparatus and surgical techniques provide alternative cutting fixtures and other features to improve bone resection accuracy and joint stability. According to one embodiment, stabilizers are removably attached to a cutting guide to temporarily lengthen the surface against which a saw or other cutting device rests. Another embodiment provides differently shaped saw blades, having curved distal ends and right-angle bends applicable to box cuts of the type associated with cruciate sacrifice knee-replacement surgery. Methods are also disclosed whereby the box cuts, distal and posterior augment cuts may be approached from a distal perspective, both laterally and medially. A different embodiment provides a trial/cutting guide having flat surfaces as opposed to curved surfaces adapted for articulation within a joint. Yet a further alternative embodiment teaches a device for determining the joint line relative to a tibia using the fibula as reference.

A method for calculating the required cylindrical power of a toric implant by using both the measured pre-operative corneal/ocular astigmatism and the predicted surgically-induced astigmatism. The post-operative corneal/ocular astigmatism is predicted using power vector analysis of the surgical technique employed by the surgeon. Such a method provides a more accurate method of calculating the required spherocylindrical refractive power of the implant. The method can be implemented manually, but preferably is automated by implementation on a computer through appropriate software.

In a method for introducing a retinal implant to a position within a subretinal region of an eye, the following steps are performed: a) preparing a fornix-based scleral flap at a distance from the limbus; b) detaching the retina by subretinal injection of balanced salt solution, from the vitreous cavity and creating a localized bubble in the area of the scleral flap; c) performing in the upper hemisphere of the eye a peripheral retinotomy and detaching a part of the retina; d) advancing the implant into the subretinal space and placing an inner portion of said implant on the retinal pigment epithelium onto the desired position; and e) closing the sclera flap.

A medical tool includes a flexible sleeve placed over a flexible endoscope tube of an endoscope, with the flexible sleeve having one or more channels for providing additional access to the interior of a patient's body. Various tools may be inserted into the channels in order to perform surgical techniques within the body, such as within the gastrointestinal (GI) tract of the patient. Such insertable tools may include scalpels, scissors, or gripping tools. The tools may be flexible tools, and may include electrically-powered tools or non-electrically-powered tools.

An extra-cochlear hearing aid implant is characterized by a pad having a plurality of electrode prongs that extend therefrom and which are adapted to provide an electrical stimulus to hearing cells within the cochlea. The electrode pad is adapted to be placed onto endosteum overlying the cochlea in an “extended soft surgery” technique. The prongs are configured to pierce the endosteum and extend into the cochlea. In one form, the extra-cochlear hearing aid implant also includes hollow tubules that extend from the pad and which are adapted to supply and withdraw neurotrophic proteins and other materials in a fluid into and from the cochlea, and also to provide electrical stimulus to the hearing cells.

A method and apparatus of reattaching a bone fragment to a proximal humerus of a humerus in a shoulder joint. The method includes introducing a distal end of the humeral nail into a medullary canal of the humerus. A first proximal screw is engaged with the bone fragment and a first proximal bore in the proximal end of the humeral nail to move the bone fragment toward the proximal humerus. The humeral nail and the attached bone fragment are rotated relative to the medullary canal of the humerus to position the bone fragment to an anatomically optimal location. The bone fragment is preferably one of a greater or lesser tuberosity of the proximal humerus. The method and apparatus can be used to reattach bone fragments in a variety of other joints.

The invention provides a locally-plugged thrombus scaler, which comprises a core tube, a sleeve, a first saccule, a second saccule and a thrombus scraping skein, wherein the sleeve is sleeved outside the core tube in a movable way; the first saccule is connected to the head end of the core tube; the second saccule is sleeved outside an inner tube of the sleeve; and the thrombus scraping skein is sleeved outside the core tube in a movable way and is arranged in front of the sleeve. By the locally-plugged thrombus scaler, two saccules are expanded simultaneously to plug thrombus deposition positions on veins and form a section of closed space, and thrombus is crushed and scraped by rotating the thrombus scraping skein in the closed space. The locally-plugged thrombus scaler can scrape thrombus completely, prevent vein inner membranes from being injured, discharge the thrombus from human bodies completely and prevent crushed small thrombus blocks from remaining in the human bodies, is suitable for scraping venous thrombosis of limbs of the human bodies and is particularly suitable for scraping the thrombus at the deep positions of femoral veins of the human bodies by using a percutaneous microtrauma surgical technology.

A tibial component for use in conjunction with a knee replacement surgery. An inferior surface of the tibial component may be concave to thereby improve bonding between the tibial component and a tibia. The tibial component may produce low stress in the cement mantle during in-vivo loading. A stem extending from the inferior surface of the tibial component may include an anterior curvature to facilitate the use of minimally evasive surgical techniques. The stem may further include medial-lateral wing portions with a posterior curvature to provide improved support.

The present invention provides an implantable modular AV shunt device, which is capable of monitoring and reporting its own patency, and which comprises a plurality of modular components that may be assembled and adjusted by the vascular surgeon during the implantation procedure, using well-known surgical techniques, in order to provide a custom fit and arrangement for the particular patient involved. The device comprises an arterial anastomotic valve that permits blood flowing through an artery to pass into the shunt device, a venous anastomotic valve that permits blood flowing through the shunt device to pass into a vein, a medial flow control unit, a first flexible shunt that carries blood from the arterial anastomotic valve to the medial flow control unit, a second flexible shunt that carries blood from the medial flow control unit to the venous anastomotic valve, and a valve control system. The valve control system is operable to control both the rate at which blood is permitted to enter the shunt device via the arterial anastomotic valve, as well as the rate at which blood is permitted to exit the shunt device via the venous anastomotic valve.

Disclosed is a surgical simulator for teaching, practicing, and evaluating surgical techniques. Such a simulator may comprise a cassette of organs, blood vessels, and tissues that may be disposable. The simulator also comprises a hemodynamic simulator and a frame assembly, the frame assembly providing support for the cassette of organs as well as a fluid conduit through which simulated blood flow from the hemodynamic simulator may be connected to the blood vessels of the organs and related tissues. The hemodynamic simulator provides adjustable and variable pressures to the arteries and veins, as well as variable pulse rates, which can be programmed at settings chosen by an instructor or user.

Orthopedic procedures, such as total hip replacement and/or other surgical procedures, involve the retraction and distraction of bone and tissue in order to reduce prosthesis components, such as a femoral head prosthesis, into place during surgery and to perform other surgical techniques, such as reaming of the acetabulum. An instrument handle that allows for enhanced control of surgical instruments and other tools that involve the application of directional force includes a grip, an extension arm and a support brace that is configured to contact a user's forearm during a surgical procedure. A multiple-tool receptor may also be included that allows for the removable and interchangeable use of tools in connection with the instrument handle. The system described herein allows for deep distraction without angulation using larger muscles or even one's body.

A transobturator technique was developed for treating male urinary incontinence. This approach helped to design specific instruments to pass around the ischio-pubic branches of the male pelvis from inside to outside (i.e from the suburethral space to the thigh fold). The inside-out transobturator sling technique uses specific instruments and a polypropylene mesh with two arms that are passed inside to outside through the obturator foramens, pulled for compressing the bulbar urethra upward, and tied to each other across the midline. The mesh passes around the ischio-pubic branch before being tied under the bulbar urethra where it brings tension and support.