Abstract: In some implementations, a web instance may receive an indication of an event associated with a uniform resource locator (URL) that includes a slug. The web instance may determine, using an indicator encoded in the slug, that the URL is associated with an action that is included in a concurrency control group. The web instance may communicate with a remote database to determine whether the concurrency control group is locked. The web instance may selectively trigger execution of the action based on whether the concurrency control group is locked.

Abstract: In some implementations, a web host may receive a configuration file associated with at least one action. The web host may determine, using the configuration file, that the at least one action is controlled for concurrency. Accordingly, the web host may generate a URL for the at least one action. The URL may include a slug, and the slug may include an identifier associated with the action and at least one bit indicating that the action is controlled for concurrency.

Abstract: In some implementations, a web instance may receive an indication of an event associated with a uniform resource locator (URL) that includes a slug. The web instance may determine, using an indicator encoded in the slug, that the URL is associated with an action that is included in a concurrency control group. The web instance may communicate with a remote database to determine whether the concurrency control group is locked. The web instance may selectively trigger execution of the action based on whether the concurrency control group is locked.

Abstract: An apparatus for mixing and applying a fibrin tissue adhesive and a thrombin activator to target tissue in a laparoscopic procedure as a spray includes a spray set and a regulator module. The spray set includes a pair of elongated tubes of hypodermic stock having a Luer fitting at the proximal ends thereof for attachment to a pair of syringes containing the fibrin solution and the thrombin solution, respectively. The pair of tubes is contained within the lumen of an elongated sheath. A hub at the proximal end of the sheath has a gas inlet port. A gas is delivered to this inlet port by means of a regulator module upon actuation of a footswitch. Upon actuation of the footswitch and simultaneous actuation of the syringe plungers, the two reactive solutions mix only at the distal spray tip and are propelled by the applied gas onto the target tissue. The regulator module also controls venting of insufflation gas from the abdominal cavity to avoid unwanted buildup of pressure as the spray applicator is used.