7 results about "Recipient site" patented technology

Exemplary embodiments of apparatus and method for harvesting small portions of tissue (“micrografts”) to form grafts can be provided. For example, a hollow tube can be inserted into tissue at a donor site, where a distal end of the hollow tube can have two or more points or extensions to facilitate separation of the micrografts from the surrounding tissue. The exemplary apparatus can be provided that includes a plurality of such tubes for simultaneous harvesting of a plurality of micrografts. The harvested micrografts can have a small dimension, e.g., less than about 1 mm, or less than about 0.3 mm, which can promote healing of the donor site and / or viability of the harvested tissue. The micrografts can be approximately cylindrical or strip-shaped, and can be placed in a biocompatible matrix to form a graft or directly into tissue at the recipient site. Such exemplary micrografts can be obtained from skin or other types of tissue, e.g., various internal organs.

Exemplary embodiments of apparatus and method for obtaining one or more portions of biological tissue (“micrografts”) to form grafts are provided. For example, a hollow tube can be inserted into tissue at a donor site, and a pin provided within the tube can facilitate controlled removal of the micrograft from the tube. Micrografts can be harvested and directly implanted into an overlying biocompatible matrix through coordinated motion of the tube and pin. A needle can be provided around the tube to facilitate a direct implantation of a micrograft into a remote recipient site or matrix. The exemplary apparatus can include a plurality of such tubes and pins for simultaneous harvesting and / or implanting of a plurality of micrografts. The harvested micrografts can have a small dimension, e.g., less than about 1 mm, which can promote healing of the donor site and / or viability of the harvested tissue.

Exemplary embodiments of apparatus and method for obtaining one or more portions of biological tissue (“micrografts”) to form grafts are provided. For example, a hollow tube can be inserted into tissue at a donor site, and a pin provided within the tube can facilitate controlled removal of the micrograft from the tube. Micrografts can be harvested and directly implanted into an overlying biocompatible matrix through coordinated motion of the tube and pin. A needle can be provided around the tube to facilitate a direct implantation of a micrograft into a remote recipient site or matrix. The exemplary apparatus can include a plurality of such tubes and pins for simultaneous harvesting and / or implanting of a plurality of micrografts. The harvested micrografts can have a small dimension, e.g., less than about 1 mm, which can promote healing of the donor site and / or viability of the harvested tissue.

A surgical tool assembly is disclosed herein. The assembly includes a first guide tool portion configured to support an instrument. The first guide tool portion is configured to limit movement of the instrument relative to a patient site. A second guide tool portion is provided that is configured to receive at least one K-wire to stabilize the surgical tool assembly.

A socket preparation tool configured to facilitate autotransplantation of a donor tooth to a recipient site is provided. The socket preparation tool includes a tooth replica of the donor tooth. A coronal portion is optionally included for facilitating alignment of the tooth replica adjacent teeth during a simulated autotransplantation. A radicular portion includes a smooth surface configured to facilitate compression of soft bone or soft tissue of the tooth replica or a contoured surface adapted for filing or cutting bone of the tooth replica. A cylindrical attachment is configured to be coupled to the tooth replica, such as via a receiver. A method of guided autotransplantation of a donor tooth via the customized socket preparation tool includes at least fitting and adjusting the socket preparation tool coupled to the tooth replica in the recipient site, before extracting the donor tooth.

Systems and methods for assembling a plurality of tissue grafts are provided. A method includes applying a magnetic coating over a surface of a donor site and harvesting the plurality of micro tissue grafts from the donor site, so that an upper surface of each of the plurality of micro tissue grafts contains the coating. The method also includes arranging a magnet over the magnetic coating to induce the plurality of micro tissue grafts to organize in a desired orientation, forming a tissue construct containing the plurality of micro tissue grafts arranged in the desired orientation, and applying the tissue construct to a recipient site.

This invention discloses an autologous bone graft guide assembly and an autologous bone trimming method. The guide assembly includes a bone harvesting guide, a titanium screw guide, a bone grafting guide, a trephine, a drill bit, and titanium screws. Each of the bone harvesting guide, titanium screw guide, and bone grafting guide includes interconnected positioning and operating areas. The operating area of ​​the bone harvesting guide includes a trephine positioning hole. The operating area of ​​the titanium screw guide includes a titanium screw positioning hole, the positioning area of ​​which is the same as that of the bone harvesting guide, and the position of the titanium screw positioning hole corresponds to the center of the trephine positioning hole. The operating area of ​​the bone grafting guide includes a bone graft positioning hole of the same size as the trephine positioning hole. This guide assembly unifies the donor site bone harvesting boundary, pre-drilled hole site, and recipient site bone graft fixation position on the same spatial reference, achieving millimeter-level precise navigation and titanium screw fixation throughout the autologous bone grafting process. It is particularly suitable for "more harvesting, less grafting" clinical scenarios in the oral cavity where bone removal is required in the donor site and bone grafting is required in the recipient site, significantly improving autologous bone utilization and surgical predictability.