28 results about "Repair site" patented technology

A leak detecting apparatus (1) for detecting a leak and determining the size of the leak in a suture repaired site (5) of a hollow organ (3), for example, a stomach, in a cavity (7), for example, the peritoneal cavity of a subject comprises a first insufflator (12) for insufflating the hollow organ (3) with a first gas, and a second insufflator (14) for insufflating the cavity (7) with a second gas. A gas detector (18) is provided for detecting the concentration of the first gas in gases exhausted from the cavity (7) through a communicating conduit (35). A flow meter (25) monitors the flow rate of the first gas to the hollow organ (3). First and second pressure sensors (15) and (16) monitor the static pressure of the first and second gases in the hollow organ (3) and the cavity (7), respectively. The apparatus (1) is operable in a first mode and a second mode. In both the first and second modes of operation a microprocessor (50) controls the second insufflator (14) for maintaining the pressure in the cavity (7) at a relatively low predefined pressure, and the first insufflator (12) for maintaining a constant predefined pressure differential between the pressures in the hollow organ (3) and the cavity (7) of approximately 7 mmHg. In the first mode the microprocessor (50) determines the size of the leak as a function of the pressure differential and the concentration of the first gas in the exhaust gases. In the second mode of operation the microprocessor (50) determines the size of the leak as a function of the pressure differential and the flow rate of the first gas to the hollow organ (3) with the hollow organ (3) sealed apart from the sutured site (5).

Described herein are methods for repairing tissues (e.g., a meniscus, anterior cruciate ligament, rotator cuff, etc.) using collagen implants suitable. For example, the collagen implants are injected into a repair site to heal the tissue. Further described are collagen slurries, injectable collagen implants and methods of preparation thereof.

The application discloses a novel personalized prosthesis design method, device, medium and product, relates to the technical field of computer-aided design and medical device prosthesis implant structure design, and the method comprises the following steps: determining target prosthesis rigidity and matrix material rigidity to be designed according to an actual repair site, combining a geometric parameter and rigidity relationship model to determine geometric parameters of a unit cell, and generating a target prosthesis model according to the geometric parameters; wherein, the diamond unit cell structure is used for designing the porous prosthesis, a mathematical model for representing the relationship between the geometric parameters of the unit cell and the overall rigidity of the porous prosthesis is derived based on the Euler-Bernoulli beam theory, and the geometric parameters of the unit cell are determined by using the mathematical model. Apparently, the application can directly and accurately design the structure of the porous prosthesis according to the rigidity requirement of the actual repair site, and effectively improves the design efficiency of the porous prosthesis.

The invention provides an ink composition. The ink composition is prepared from drug carrying microspheres, hydroxyapatite, sodium alginate and carrageenan. The ink material disclosed by the invention has good shear thinning performance, rheological property, stability and self-healing capability. The stent provided by the invention has good mechanical strength and hydrophilic performance. The stent provided by the invention is safe and has no cytotoxicity. And the NGF is fused into the bone scaffold, so that local continuous release can be realized, and the effect on the repaired part is lasting and effective.

Described herein are methods for preparing collagen slurries and collagen implants suitable for injection into a repair site to repair a tissue, for example, an anterior cruciate ligament, rotator cuff tendon, and / or a meniscus. Further described are slurries and implants prepared by such methods.

The invention discloses a magnesium-based bone implant material surface modified composite coating and a preparation method thereof, and relates to the technical field of biomedical materials. The modified composite coating comprises a micro-arc oxidation ceramic layer, a bone healing promoting functional layer and an antibacterial functional layer, wherein the micro-arc oxidation ceramic layer covers the surface of the magnesium-based bone implant material; the bone healing promoting functional layer and the antibacterial functional layer are sequentially loaded on the micro-arc oxidation ceramic layer; the bone healing promoting functional layer comprises a sustained-release material and icariin wrapped in the sustained-release material; the antibacterial functional layer comprises antibacterial peptide, and the antibacterial peptide is grafted on the bone healing promoting functional layer. The composite coating effectively regulates and controls release behaviors of bone healing promoting components and antibacterial components, and realizes dynamic regulation of a microenvironment of a bone repair part; moreover, the magnesium-based bone implant material also has excellent biocompatibility, can provide a good cell basis for bone regeneration, and is beneficial to large-scale application of the magnesium-based bone implant material in bone wound healing.

A method to remove a memory metal orthopedic staple from that is implanted in a bone repair site is disclosed. The orthopedic staple is in its relaxed state and the method includes (a) attaching an inserter tool / cartridge assembly to the orthopedic staple's bridge portion; (b) actuating the inserter tool to change the orthopedic staple from its relaxed state to its insertion state in which the two legs of the orthopedic staple are substantially parallel to each other; and (c) removing the orthopedic staple from the bone repair site.

A bladder and vaginal fistula repair operation matching tool comprises a guide wire, a fistula wall mucosa breaker, an umbrella type mouth closer and an injection gun, the fistula wall mucosa breaker comprises a snake bone cannula, a guide wire channel is formed in the middle of the snake bone cannula, the outer surface of the snake bone cannula is sleeved with a soft sleeve, and soft burrs are evenly distributed on the outer surface of the soft sleeve; the umbrella-type mouth closer comprises a strip-shaped tube body, a guide wire groove is formed in the outer surface of the strip-shaped tube body, an umbrella-shaped closing piece is arranged at the front end of the strip-shaped tube body, and a clamping switch is arranged at the rear end of the strip-shaped tube body. The injection gun comprises a gun barrel, the front end of the gun barrel is provided with an injection tube, the outer surface of the injection tube is provided with an injection tube wire guide groove, the upper end of the gun barrel is provided with a liquid storage tank, the rear end of the gun barrel is movably connected with an injection push rod, and the front end of the injection push rod is movably connected into an inner cavity of the gun barrel. The defects in the prior art are overcome, defects can be repaired without tension, and fistulous tract plugging is achieved. In addition, an umbrella-shaped closing piece is provided for healing of a wound surface at a repaired part to serve as a tissue closing clamp, and regeneration and healing of fistulous tract tissue can be obviously promoted.

Described herein are collagen slurries and collagen implants suitable for injection into a repair site to repair a tissue, for example, an anterior cruciate ligament, rotator cuff tendon, and / or a meniscus. Further described are systems including collagen implants, methods of preparing collagen slurries and implants, and methods of use thereof.

A hybrid medical device that can aid in reconstructive or augmentative surgery of the breast is disclosed. The device can utilize a suitable biological collagen tissue matrix combined with a synthetic material, for example, that can impart a high initial strength to the repair site while permitting proper healing and revitalization of the implanted device.

Described herein are collagen slurries and collagen implants suitable for injection into a repair site to repair a tissue, for example, an anterior cruciate ligament, rotator cuff tendon, and / or a meniscus. Further described are systems including collagen implants, methods of preparing collagen slurries and implants, and methods of use thereof.

Described herein are methods for preparing collagen slurries and collagen implants suitable for injection into a repair site to repair a tissue, for example, an anterior cruciate ligament, rotator cuff tendon, and / or a meniscus. Further described are slurries and implants prepared by such methods.

Methods and devices for the repair of a ruptured ligament using a scaffold device are provided. Aspects of the invention may include a scaffold attached by one or more sutures to one or more anchors. In aspects of the invention, the anchors may be secured to a bone near or at the repair site.

A vascular stent deployment system is delivered to a repair site in the body by means of a catheter. The deployment system apparatus comprises a vascular stent to effect the repair, a delivery sheath in which the unexpanded vascular stent is delivered to the repair site, and a pusher rod for ejecting the stent from the delivery sheath for deployment. The system further comprises a stent assist wire, located in relation to the stent, which is positioned in relation to a known feature of the vasculature, thereby assuring that the stent is accurately deployed at the repair site.

The present invention discloses a post-cranial surgery drilling repair device, which relates to the field of skull repair. The device comprises a fixing member and a first sliding sleeve, wherein the first sliding sleeve is symmetrically fixed to the fixing member, the first sliding sleeve is slidably connected to a sliding connector, a protective cover is fixed between the sliding connectors, the protective cover is fixed to a connecting rod, the connecting rod is fixed to a first sliding rod, and a first spring is wound between the connecting rod and the first sliding sleeve. The present invention uses the first sliding rod and the first spring to buffer the impact force exerted on the protective cover, thereby providing space for the protective cover to move and preventing the protective cover from directly squeezing the repair site. The second spring and the guide rod buffer the fixing member, thereby preventing the protective plate from moving up and down with the fixing member and rubbing against the repair site, thereby achieving the purpose of reducing the friction exerted on the repair site.

The present disclosure relates to a computer-assisted dental restoration system (102) configured to estimate a crown pose and represent a virtual crown in a three-dimensional model (110). The system obtains a three-dimensional model (110) of a patient's teeth, segments the three-dimensional model to obtain segmented tooth data, and generates an encoded three-dimensional model representation suitable for being processed by a trained neural network (112). A method of generating an encoded three-dimensional model representation includes downsampling a point cloud (404) representation based on segmented tooth data, determining a surface normal representation for each point, retrieving a dental marker for a repair site, encoding each point with a corresponding surface normal representation and a value associated with the repair site to produce an encoded three-dimensional model representation, and generating a three-dimensional model representation based on the encoded three-dimensional model representation. The encoded three-dimensional model representation is input into a trained neural network and an output is generated using the trained neural network, where the output includes a prediction of translation of each point in the encoded three-dimensional model representation to correspond to the crown pose.

Described herein are methods for repairing tissues (e.g., a meniscus, anterior cruciate ligament, rotator cuff, etc.) using collagen implants suitable. For example, the collagen implants are injected into a repair site to heal the tissue. Further described are collagen slurries, injectable collagen implants and methods of preparation thereof.

Described herein are methods for repairing tissues (e.g., a meniscus, anterior cruciate ligament, rotator cuff, etc.) using collagen implants suitable. For example, the collagen implants are injected into a repair site to heal the tissue. Further described are collagen slurries, injectable collagen implants and methods of preparation thereof.

Methods and devices for the repair of a ruptured ligament using a scaffold device are provided. Aspects of the invention may include a scaffold attached by one or more sutures to one or more anchors. In aspects of the invention, the anchors may be secured to a bone near or at the repair site.

A system and method for harvesting autologous tissue, mincing it into fragments that are visible and measurable when filtered, and delivering a portion of the tissue back into the patient without the need to directly touch the tissue. During the same surgical procedure, the tissue can be mixed with a biocompatible agent before introduction into the repair site.

A vascular stent deployment system is delivered to a repair site in the body by means of a catheter. The deployment system apparatus comprises a vascular stent to effect the repair, a delivery sheath in which the unexpanded vascular stent is delivered to the repair site, and a pusher rod for ejecting the stent from the delivery sheath for deployment. The system further comprises a stent assist wire, located in relation to the stent, which is positioned in relation to a known feature of the vasculature, thereby assuring that the stent is accurately deployed at the repair site.

A hybrid medical device that can aid in reconstructive or augmentative surgery of the breast is disclosed. The device can utilize a suitable biological collagen tissue matrix combined with a synthetic material, for example, that can impart a high initial strength to the repair site while permitting proper healing and revitalization of the implanted device.

Described herein are collagen slurries and collagen implants suitable for injection into a repair site to repair a tissue, for example, an anterior cruciate ligament, rotator cuff tendon, and / or a meniscus. Further described are systems including collagen implants, methods of preparing collagen slurries and implants, and methods of use thereof.

A system for repairing disrupted tissue is provided. Aspects of the present invention include a scaffold and a repair device having a combination with a graft attached to one or more fixation devices by one or more sutures and inserted into a repair site by arthroscopic surgical instruments or open surgical procedures. The system can be used to treat tissue trauma including ruptured ligaments, tendons, and cartilage.

The disclosure provides a demonstration tool and a demonstration method that enable stable preparation of each or one of a lost portion and a cavity at an arbitrary site of an artificial tooth, enable repair of the artificial tooth including each or one of the lost portion and the cavity with use of a dental filling composite resin, and then enable observation of a repaired site in a plurality of directions. A demonstration tool is used for demonstration including filling to cure a dental filling composite resin in each or one of a lost portion and a cavity of an artificial tooth, and the demonstration tool comprises at least one artificial tooth including an artificial tooth having each or one of a lost portion and a cavity, and a structure body supporting the at least one artificial tooth, wherein the structure body supporting the at least one artificial tooth is coupled to the at least one artificial tooth, and the at least one artificial tooth has a variable angle.

Described herein are collagen slurries and collagen implants suitable for injection into a repair site to repair a tissue, for example, an anterior cruciate ligament, rotator cuff tendon, and / or a meniscus. Further described are systems including collagen implants, methods of preparing collagen slurries and implants, and methods of use thereof.

Described herein are collagen slurries and collagen implants suitable for injection into a repair site to repair a tissue, for example, an anterior cruciate ligament, rotator cuff tendon, and / or a meniscus. Further described are systems including collagen implants, methods of preparing collagen slurries and implants, and methods of use thereof.

An arthroscopic system for repairing torn ligaments is provided. An aspect of the present invention includes a scaffold that surrounds a graft, is attached to a fixation device by sutures, and is inserted into the repair site via an arthroscopic instrument. The scaffold, graft, and sutures are further fixed near or to the repair site via an arthroscopic instrument having an elongated delivery member containing the scaffold, graft, and sutures, prior to insertion of the scaffold, graft, and sutures into the repair site.