Abstract:
An eye drop dispensing device includes a trough member with a space to receive a cartridge housing enclosing a collapsible bag containing an ophthalmic liquid and comprising a spring finger applying pressure to the bag. The bag includes a wall pierced by a needle coupling the liquid to pump means through a one-way valve. The pump means includes a plunger biased to a resting position establishing a dosage chamber. Actuator means moves the plunger to enlarge the dosage chamber, causing a drop in pressure which draws a predetermined quantity of the liquid through the one-way valve into the dosage chamber. The actuator means then releases the plunger so that it moves to compress the dosage chamber to pump the liquid in the dosage chamber through a second one-way valve to spray the liquid through pinholes formed in a nozzle angled to direct the liquid as eye drops to the user's eye.
Abstract:
A brake assembly for a steerable catheter that allows both dynamic locking and swapping between a locked mode of operation and an unlocked mode of operation is described. Dynamic locking enables fine adjustment of the catheter shaft position, while swapping between modes results in a more multipurpose catheter. Generally, the brake assembly includes a brake shoe positioned for slidable movement between a locked position contacting the steering dial and an unlocked position not contacting the steering dial. At least one spring biases the brake shoe toward the locked position. A catheter including a brake assembly is also described.
Abstract:
Vascular access systems, devices and methods for facilitating repeated access to a blood vessel. These systems, devices and methods can be used in external blood treatment, such as dialysis, and in intra-venous administration of medicines, such as heparin, for extended periods of time, while avoiding deleterious effects such as those derived from repeated puncturing of the blood vessel tissues or exposure of such tissues to abnormal fluid flows. The vascular access systems comprise an anastomosis graft vessel, an occlusal device, such as an occlusal balloon, and a port device for accessing the occlusal device. Occlusal devices can be self-contained, they can rely on osmosis, and they can serve as the support of an agent to which the blood stream is exposed, either by transport or by mere contact. In addition, occlusal devices can adopt a distended and a collapsed configuration, the latter allowing for blood flow through the anastomosis graft vessel.
Abstract:
A system and method are provided for oxygenating infusion/irrigation fluid, and for providing the hyperoxic infusion/irrigation fluid so formed to an ophthalmic surgical site.
Abstract:
An injection catheter is provided. The catheter comprises a catheter body comprising a flexible tubing having proximal and distal ends and at least one lumen therethrough. The catheter further comprises a tip section comprising a flexible tubing having proximal and distal ends. The proximal end of the tip section is mounted at the distal end of the catheter body. A needle control handle is provided at the proximal end of the catheter body. An injection needle extends through the tip section, catheter body, and needle control handle and has a proximal end attached to the needle control handle and a distal end within the tip section. The injection needle is longitudinally slidable within the tip section so that its distal end can extend beyond the distal end of the tip section upon suitable manipulation of the needle control handle. The injection needle comprises one or more pieces of tubing, at least one of which comprises plastic.
Abstract:
Disclosed is an automatic syringe device including a syringe pump having a housing defined therein with a syringe receiving chamber for receiving a syringe, a control unit received in the housing and adapted to control a motor adapted to supply, to the syringe pump, a drive force for injecting a liquid medicine out of the syringe, a transmitter/receiver unit received in the housing and electrically connected to the control unit, and a remote controller adapted to control the control unit via the transmitter/receiver unit. The remote controller includes a transmitter/receiver unit adapted to conduct transmission and reception of signals to and from the control unit of the syringe pump via the transmitter/receiver unit of the syringe pump, a control unit adapted to control the transmitter/receiver unit of the remote controller, and a display adapted to display an ON or OFF state.
Abstract:
One of the most significant safety concerns in the automation of extracorporeal blood treatments such as dialysis is the risk of blood leakage. Such systems draw blood at such a high rate that a loss of integrity in the blood circuit can be catastrophic. The most reliable leak detection method known is the detection of infiltrated air in a blood line, but this only works in blood lines under negative pressure. According to the invention, a leak detector for return lines is provided by periodically generating a negative pressure, which may be brief or at a 50% duty cycle, in the blood return line to draw air into it and thereby reveal the leaks using an air sensor. Although the return line is ordinarily under positive pressure, during the negative pressure cycle, the blood return line draws air through any leaks or disconnects. If air is detected, the system is shut down and an alarm generated.
Abstract:
Extracorporeal affinity adsorption treatments which are aimed at the substantial removal of two or more compounds that are etiological in the pathogenesis of diseases in man provide effective therapeutic intervention means for these diseases. The methods are particularly suitable for the treatment of atherosclerosis, cancer, degenerative and autoimmune diseases. Extracorporeal chelation and immunotherapy for atherosclerosis, extracorporeal chelation treatment with on-line regeneration or replacement of chelant, extracorporeal immunotherapy with antibody fragments, and extracorporeal immunoadsorption utilizing antibodies bound to Protein A are also disclosed.
Abstract:
An array of microneedles is provided to apply semi-permanent or permanent markings to skin, or to apply semi-permanent subcutaneous makeup or other cosmetic compounds to skin. The microneedles can apply identifications or other tattoo-like graphics, and will not enter into the dermal layer of the skin so that the application procedure is painless. The microneedle array is also useful for delivering specific compounds or actives into the skin, such as cosmetic compounds or nutrients, or various skin structure modifiers that can be delivered subcutaneously without having to visit a cosmetic surgery clinic.
Abstract:
A system and method for automatically controlling the quantitative delivery of, and then recording the occurrence of the administration of medicines to animals is disclosed and claimed. An intelligent syringe receives and automatically implements an instruction relating to a preferred quantity of medicine to be delivered to a specific animal, based on the measured weight of the animal. Upon actuation of the intelligent syringe, a first signal containing information relating to the actuation of the intelligent syringe, and the resulting injection of the animal is transmitted to a data repository. An EID is attached to the animal to provide a tamper-resistant electronic identification of the animal, and a receiver is utilized for receiving the first signal from the intelligent syringe and the electronic identification of the animal. Thereafter, a computer database maintains the information contained in the first signal for selective access and analysis.