Perforating ocular injury caused by acupuncture: A case report.

Acpuncture as a branch of traditional Chinese medicine is popular in China. It can regulate the running of meridian qi to stimulate the ocular nerve activity and increase blood supply. Periocular acupuncture treatment is very frequent, but it can lead to safety hazards that cannot be ignored.

[Hemodynamic performance of newly developed composite stentless porcine aortic valve: in vitro testing and in vivo experiment with sheep].

Objective: To investigate the effects of a newly developed composite stentless porcine aortic valve constructed from noncoronary leaflets of three porcine aortic valves.

Methods: Fresh porcine hearts with ascending aorta were obtained from a slaughterhouse. The porcine aortic roots with ascending aorta and anterior leaflet of mitral valve and partial ventricular septum were dissected out and were pressurized to maintain their natural anatomical shapes with the leaflets floating freely at zero-pressure.

[Using chemical methods to crosslink xenogeneic heart valves: the progress of bioprosthetic heart valves].

Glutaraldehyde clinically is the most commonly accepted crosslinking reagent for bioprosthetic valves preparation. Glutaraldehyde-treated tissue is stable against chemical and enzymatic degradation; however, its calcification and cytotoxicity are severe. Dye-mediated photooxidation is an alternative tissue preservation method that oxidizes the protein with visible light in the presence of a suitable photosensitizer.

[Crosslinking bovine pericardial bioprosthetic heart valves by phthalocyanine sensitized photooxidation reaction].

Objective: To crosslink bovine pericardial valves by phthalocyanine sensitized photooxidation reaction.

Methods: Fresh bovine pericardial tissues were immersed in PBS solution containing 0.01% cupreous sulfonatophthalocyanine and exposed to a broad wavelength light source for 20-120 h.