A01N1/0263

DSAEK corneal graft assemblies for optimized surgical operations
11654048 · 2023-05-23 · ·

Assemblies for storing, handling, transporting, viewing, evaluating, and/or shipping corneal tissue are provided. The assembly includes a corneal tissue carrier, optimized for DSAEK and UT-DSAEK corneal grafts, within a transport vial, the transport vial removably coupled to a stabilization base, wherein the ease of access to the graft carrier allows administering the corneal tissue sample to a patient in rapid succession so that more surgeries can be performed by a single surgeon in a single day.

Sample container with peelable seal and access port

An apparatus includes a flexible container, a port, and a support structure. The container includes a first layer coupled to a second layer to define a storage volume within which a tissue specimen can be contained. The first layer is characterized by a first stiffness and the second layer characterized by a second stiffness. An edge of the first layer is spaced apart from an edge of the second layer to define an opening into the storage volume. The edge of the first layer and the edge of the second layer are configured to form a peelable seal that hermetically seals the storage volume such that the first layer can be peeled away from the second layer to expose the storage volume. The port is coupled to the flexible container and allows fluid communication between the storage volume and an external volume. The support structure is configured to support the tissue specimen within the storage volume and is characterized by a third stiffness. The third stiffness is greater than the first stiffness and the second stiffness.

CHAMBER FOR TRANSPLANTATION AND DEVICE FOR TRANSPLANTATION

According to the present invention, there are provided a chamber for transplantation, as a planar chamber for transplantation which has a structure in which membranes for immunoisolation face each other, and which is capable of stably enclosing a biological constituent, including a membrane for immunoisolation at a boundary between an inside and an outside of the chamber for transplantation, in which the membranes for immunoisolation which face each other have joint portions that are joined to each other, an interior space includes a point at a distance of 10 mm or longer from any position of the joint portion, and the membrane for immunoisolation has flexibility that allows a distance of 1 mm to 13 mm as the following distance: in a case where a portion of 10 mm from a side surface of one short side of a 10 mm×30 mm rectangular test piece of the membrane for immunoisolation is vertically sandwiched between flat plates, and the flat plates are placed horizontally, a distance between a horizontal plane including a center plane in a thickness direction of the sandwiched portion of the membrane for immunoisolation, and a part, which is farthest from the horizontal plane, of a residual 20 mm-portion projecting from the flat plate; and a device for transplantation including the chamber for transplantation enclosing a biological constituent therein.

STORAGE CONTAINER FOR CELL-CONTAINING SOLUTION AND STORAGE SOLUTION

Provided is a storage container for cell-containing solutions, which makes it possible to enhance the storage stability of cfDNA contained in a cell-containing solution even when the cell-containing solution is stored under a room temperature environment. The storage container for cell-containing solutions according to the present invention is intended to be used for storing a predetermined amount of a cell-containing solution, the storage container being provided with a container main body and a preservative solution contained in the container main body, in which the storage container has a first configuration such that the preservative solution contains a cell-membrane-permeable compound that has a molecular weight of 100 or less and cannot be frozen at 0° C. and, when a mixed solution X is prepared by collecting the predetermined amount of the cell-containing solution in the storage container for cell-containing solutions and mixing the cell-containing solution with the preservative solution, the content of the cell-membrane-permeable compound in the mixed solution X is 1 vol % to 5vol % inclusive, or the storage container has a second configuration such that the preservative solution contains a cell-membrane-impermeable compound having a molecular weight of 300 or more and, when a mixed solution X is prepared by collecting the predetermined amount of the cell-containing solution in the storage container for cell-containing solutions and mixing the cell-containing solution with the preservative solution, the content of the cell-membrane-impermeable compound in the mixed solution X is 0.5 μmol/L to 5 μmol/L inclusive.

SYSTEM AND METHOD OF TAKING AND COLLECTING TISSUE CORES FOR TREATMENT
20230204471 · 2023-06-29 ·

A tissue cutting device that is especially suited for neurosurgical applications is disclosed and described, as well as alternative systems for tissue preservation and transport. The cutting device includes an outer cannula in which a reciprocating inner cannula is disposed. A tissue collector is also provided and is in fluid communication with the lumen of the inner cannula. A temperature control sleeve may be disposed around the tissue collector to control the temperature of the tissue samples. A preservation system may be supplied that is configured to deliver fluids to tissue samples in the tissue collector. A fluid supply sleeve may be disposed about the outer cannula and is selectively positionable along the length of the outer cannula.

DEVICE FOR FREEZING AND TRANSFERRING GRAFT AND METHOD OF FREEZING AND TRANSFERRING GRAFT
20230200377 · 2023-06-29 · ·

An object of the present invention is to provide a unit capable of efficiently and quickly detaching a graft from a device without causing damage or wrinkles. The above problem has been solved by a medical device that transfers a graft to a target site, the medical device including the graft and a support with the graft placed on one surface, in which the graft and the support are frozen in a state where the graft is placed, and the graft can be detached from the support and transferred to the target site by thawing the frozen graft placed on the support.

System for extended storage of red blood cells and methods of use

A system and methodology for the preservation of red blood cells is described in which red blood cells are oxygen or oxygen and carbon dioxide depleted, treated and are stored in an anaerobic environment to optimize preparation for transfusion. More particularly, a system and method for extended storage of red blood cells from collection to transfusion that optimizes red blood cells prior to transfusion is described.

CONTAINER WITH BIOLOGICAL MATERIALS HAVING MULTIPLE SEALED PORTIONS
20230189793 · 2023-06-22 · ·

An apparatus is disclosed having a first layer coupled to a second layer via a plurality of seals to define a storage volume that is separable by at least one intermediate seal into a first volume and a second volume. The intermediate seal is applicable after a material is introduced into the storage volume storage. The apparatus includes a first opening into the storage volume and a second opening into the storage volume. The first opening and the second opening are positioned near opposite edges. The apparatus also includes a first frangible region positioned along the intermediate seal and configured for separation of the first volume and the second volume.

Devices, systems, and methods for modeling ocular translaminar pressure gradients

The present disclosure relates to devices, systems, and methods for modeling ocular translaminar pressure gradients ex vivo. A first fluid pressure level can be applied to a first side of a wall of donor eye cup (e.g., a posterior human eye cup) to simulate intracranial pressure (ICP), for example around the optical nerve head (ONH), and a second fluid pressure level can be applied to a second side of the wall of the donor eye cup to simulate intraocular pressure (IOP). These devices, systems, and methods are unique in that they allow ex vivo modeling of dynamic changes in translaminar pressure gradients.

DEHP-Free Blood Storage and Methods of Use Thereof
20230180741 · 2023-06-15 · ·

The present disclosure relates to carbon dioxide permeable containers for storing blood and methods for the improved preservation of whole blood and blood components. The improved devices and methods for the collection of blood and blood components provide for whole blood and blood components having reduced levels of carbon dioxide and the elimination of the plasticizer DEHP. The devices and methods provide for the preparation of carbon dioxide depleted blood and blood components for storage that improves the overall quality of the transfused blood and improves health outcomes inpatients and reduces risks associated with DEHP. The devices and methods also provide for maintenance of low oxygen content in blood and blood components during storage. Compositions comprising a blood product and an additive solution are also disclosed.