摘要:
Methods, devices and systems are described for treating venous insufficiency in which the vein is compressed at least partially along a treatment zone. A system can be provided including an injection device, such as a glue gun, that is operably connected to a delivery catheter that can be advanced across a treatment zone in the vein. The delivery catheter can be used to deliver one, two, or more boluses of media (e.g., cyanoacrylate) to occlude the vein along different spaced-apart sections of the treatment zone. External compression can also be applied to the vein by a compression element, such as a hand or multifunctional ultrasound transducer, to occlude portions of the vein along the treatment zone prior to or during the introduction of the boluses of media.
摘要:
A fabric product with a low powered activation device and a conductive arrangement, which includes a body having an outer covering which is soft and flexible to providing an outer skin surface and an inner skin surface, and defines a body receiving cavity. The low powered activation device is an electronic unit received inside the body receiving cavity which comprises a casing, a power source, an activation circuit, and an operator which is activated through the activation circuit. The conductive arrangement electrically connects between the electronic unit and the outer skin surface, which includes one or more conductive threads affixed on the inner skin surface, each having one end portion defining an activation control which penetrates through the inner skin surface to the outer skin surface, thereby when the activation control is contacted by a user, the activation circuit is activated to activate the operator of the electronic unit.
摘要:
A fabric product includes a body having a skin made by interweaving a plurality of textile fabrics and a low powered activation arrangement which includes an electronic unit and one or more conductive threads extended underneath the skin of the body. The electronic unit includes a power source, an activation circuit which is a low powered activation circuit, and an operator. Each of the conductive threads has a proximal end portion electrically coupled with the activation circuit and a distal end portion which is extended to an outer surface of the skin of the body at a predetermined location thereof and is arranged in such a manner that when the distal end portion of the conductive thread is being contacted, the activation circuit is activated to actuate the operator.
摘要:
Treatment of aneurysmal blood vessels with local delivery of therapeutic agents thereby reduces or lessens the severity of an aneurysm, and, where used in conjunction with the placement of an excluding device, provides for more rapid recovery of the blood vessel from any disturbance occurring during placement of the excluding device. Therapeutic agents are placed in the aneurysmal site in a time-release carrier medium, such that the therapeutic agent is released into the aneurysmal site over a period of time without the need to provide systemic introduction of the therapeutic agent. The carrier may be introduced through the patient's dermis, such as with the use of a laparoscope, or intravascularly, through the use of a catheter. The carrier may be in a solid matrix, viscous liquid or liquid form.
摘要:
An energy saving PWM sound device forms a frequency-dependent impedance device implemented on the PWM output of the voice-ICs in series to lower the power consumption and to enhance sound quality of the voice-IC products. The device includes a hollow core body and an elongated conductive element. The core body has a top rim, a bottom rim, and two side rims to define a through channel therewithin. The conductive element winds around the top rim of the core body, wherein two ends of the conductive element are adapted for connecting with the PWM output, such that when the conductive element is electrically conducted, the core body acts as an inductor at lower frequency and a frequency-dependent resistor in series with the inductor at higher frequency for blocking most of PWM carrier frequency so as to reduce the power consumption of the voice-ICs product.
摘要:
A low powered activation electronic device includes a power source, an electronic circuit, having two spaced apart electrodes, electrically connected to the power source to form an opened circuit, and two fabric contacts made of textile material provided at the two electrodes of the electronic circuit, wherein the electronic circuit is formed a closed circuit to activate the electronic device in responsive to a physical touch by a human operator at the two fabric contacts.
摘要:
Method and devices to administer a bioactive material within a vessel while maintaining nearly-constant pressure within the vessel are disclosed. In one embodiment the methods and devices include a multi-lumen catheter to administer bioactive materials and simultaneously drain or evacuate excess fluid or bio-inactive materials at an aneurysm site within a vessel.
摘要:
The present invention encompasses methods and apparatus for minimizing the risks inherent in endovascular grafting for blood vessel therapy and repair. The invention involves delivering adult stem cells, embryonic stem cells, progenitor cells, fibroblasts, or smooth muscle cells to the diseased blood vessel.
摘要:
A semiconductor structure for use as a template for forming high-performance metal oxide semiconductor field effect transistor (MOSFET) devices is provided. More specifically, the present invention provides a structure that includes a SiGe-on-insulator substrate including a tensile-strained SiGe alloy layer located atop an insulating layer; and a strained Si layer atop the tensile-strained SiGe alloy layer. The present invention also provides a method of forming the tensile-strained SGOI substrate as well as the heterostructure described above. The method of the present invention decouples the preference for high strain in the strained Si layer and the Ge content in the underlying layer by providing a tensile-strained SiGe alloy layer directly atop on an insulating layer.
摘要:
An endoluminal stent graft includes a healing-promoting material to enhance the “healing” of the proximal and/or distal neck(s) of the endoluminal stent graft and the vessel wall; the risk of migration and the occurrence of Type 1 endoleaks is reduced. The healing-promoting material is located within a proximal anchor region located near the proximal neck opening of the endoluminal stent graft and optionally within one or more distal anchor regions located near one or more distal neck openings of the endoluminal stent graft.