摘要:
The present disclosure relates to hemostatic implants including a porous substrate having a first hydrogel precursor and a second hydrogel precursor applied thereto in a manner such that the first hydrogel precursor and second hydrogel precursor do not react with each other until the implant is placed at the site of implantation and exposed to the physiological fluids of a patient.
摘要:
A spray assembly for dispensing a mixture is provided. The spray assembly includes a connector configured for operable engagement with a first and a second source of component and a source of pressurized fluid, and a tip operably connected to the connector. The tip includes an opening and defines a mixing chamber between the connector and the opening of the tip, and an insert member configured to be received in the mixing chamber. The insert member includes a plurality of radially extending slots on at least one end of the insert. The plurality of radially extending slots is configured to mix the first and second components prior to the mixture exiting the opening in the tip.
摘要:
Some aspects of the present disclosure relate to a surgical treatment for treating a tissue inside a vertebral column by forming a low-swelling biodegradable hydrogel in situ adherent to a tissue inside the vertebral column and substantially exterior to a theca in the vertebral column.
摘要:
The present disclosure provides implants suitable for drug delivery. In embodiments, the present disclosure provides layered biodegradable drug delivery implants and systems and methods for making these implants.
摘要:
A spray assembly for dispensing a mixture is provided. The spray assembly includes a connector configured for operable engagement with a first and a second source of component and a source of pressurized fluid, and a tip operably connected to the connector. The tip includes an opening and defines a mixing chamber between the connector and the opening of the tip, and an insert member configured to be received in the mixing chamber. The insert member includes a plurality of radially extending slots on at least one end of the insert. The plurality of radially extending slots is configured to mix the first and second components prior to the mixture exiting the opening in the tip.
摘要:
A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.
摘要:
The present disclosure provides implants suitable for drug delivery. In embodiments, the present disclosure provides layered biodegradable drug delivery implants and systems and methods for making these implants.
摘要:
The present disclosure relates to a drug delivery device including a biodegradable housing and a hydrogel within the biodegradable housing. The housing, the hydrogel, or both, may include a bioactive agent. Also disclosed is a method of drug delivery including the steps of forming the biodegradable housing, in embodiments a hydrogel, suspending a bioactive agent in the hydrogel, and introducing a second hydrogel and/or precursors of a second hydrogel into the biodegradable housing.
摘要:
A composition comprising: a first synthetic precursor possessing first functional groups and having a molecular weight of from 100 to 1500 Da, a second synthetic precursor comprising a multi-armed precursor possessing a core and from 3 to 12 arms, the arms each comprising a polyethylene glycol having a molecular weight from 250 to 3000 Da and possessing second functional groups at the ends thereof; wherein the first functional groups crosslink with the second functional groups thereby forming a biodegradable hydrogel which swells from -50% to 50%, for use in the treatment of tissue inside the vertebral column of a patient.