摘要:
Apparatus for the delivery of an electrical field which facilitates the intracellular delivery of a therapeutic agent to a predetermined site within the tissue of a patient. The apparatus will comprise a plurality of penetrating electrodes arranged in a predetermined spatial relationship, each electrode with a cross sectional area contributing to the total cross sectional area of all electrodes, and structural means incorporating an inanimate source of energy operatively connected to the plurality of electrodes for deploying the electrodes, wherein the source of energy is sufficient to impart a force of at least 1000 pounds per square inch (0.7 kilogram per square millimeter) of total cross sectional area of all electrodes at the initiation of the deployment of the electrodes. The apparatus will also comprise means for generating an electrical field which facilitates the intracellular delivery of a therapeutic agent, which means is operatively connected to said electrodes a least in their deployed state.
摘要:
It has been discovered that pain felt in a given region of the body can be treated by stimulating a peripheral nerve at a therapeutically effective distance from the region where pain is felt to generate a comfortable sensation (i.e., paresthesia) overlapping the regions of pain. A method has been developed to reduce pain in a painful region following limb joint replacement by stimulating a peripheral nerve innervating the painful region with an electrode inserted into tissue and spaced from the peripheral nerve. This method may be used to help alleviate postoperative pain in patients following total knee arthroplasty surgery or other limb joint replacement surgeries.
摘要:
The invention relates to a system for the prevention of needle tract bacterial infections, comprising: - a percutaneous surgical instrument (1) percutaneously introducible into a tissue (3) of a patient, such as a biopsy needle, and having an outer surface made of an electrically conductive material; - a contact electrode (4) applicable to the skin (3a) of a patient; - a silver coating or silver element (P) arranged on or forming part of the instrument (1), and configured, sized and provided so as to break down by means of electrochemical release when a current is applied thereto, releasing silver ions into its surroundings; and - an electric current generator (2) arranged and configured for generating a current and inducing the temporary circulation thereof between the instrument (1) acting as an anode, the tissue (3) and the contact electrode (4) acting as a cathode, respectively, with a magnitude and duration which are determined for producing a massive and sudden release of silver ions for the purpose of preventing post-treatment bacterial infections.
摘要:
A device and method for reducing patient transthoracic impedance for the purpose of delivering a therapeutic current are provided. In one embodiment, the device for reducing patient transthoracic impedance for the purpose of delivering a therapeutic current may be used in a defibrillator. The device for reducing patient transthoracic impedance for the purpose of delivering a therapeutic current may be a microneedle array that may have a number of different configurations and may be made with different materials.
摘要:
A sub-epidermal electric warning device has electrodes penetrating through the patient's epidermis and bipolar electric warning signals are transmitted to the sub-epidermal tissue by these electrodes. A device for surveillance of vital signs, analyte levels, or treatment parameters is using a sub-epidermal electric warning device for notifying the patient in situations requiring intervention.
摘要:
Systems and methods according to the present invention relate to a substantially extracorporeal pulse generator system for electrical stimulation of one or more target nerve or their branches using one or more preferably percutaneous leads each having one or more electrodes implanted in, on, around, or near the target nerve. Improved systems include a patch assembly configured to be adhesively mounted to a patient's skin and an electrical stimulation assembly configured to be mechanically mounted to the patch assembly. A preferred patch assembly, in addition to provide mechanical mounting of the stimulation assembly, provides a power source for the stimulation assembly, and may further serve as a return electrode. Associated system components and methods of use are also provided.