106 results about "Heart Catheters" patented technology

A resonant circuit is incorporated in a stent, which implantable in a pulmonary vein using known cardiac catheterization techniques. When an external RF field is generated at the resonant frequency of the stent, RF energy is re-radiated by the stent toward electroconductive tissue in the wall of the pulmonary vein, and produces a circumferential conduction block. The stent can be made of biodegradable materials, so that it eventually is resorbed. Following an ablation procedure, the stent may be left in situ. Repeated ablation can be performed using the inserted stent until it has been determined that the desired lesions have been formed. Furthermore, the same stent can potentially be used even years after being inserted should the treated arrhythmia reoccur or a new arrhythmia develop, thereby possibly obviating the need for an invasive procedure at that future time.

The catheter is guided along a blood vessel of a patient by the bipolar electrode functioning as a mobile sensor on the catheter tip connected to the electronic unit to monitor the advance of the catheter and determine any modification of successive signals received from the bipolar electrode in order to detect any deviation of the catheter tip from the required path along the blood vessel and to deliver control signals comprising a GO signal, a STOP signal or an END signal to respectively enable, interrupt or terminate the advance of the catheter. The bipolar electrode moreover serves to verify the contact of the catheter tip with the wall of the heart cavity of the patient by creating impulses and detecting the appearance of corresponding induced signals on a surface cardiogram of the patient. The combination of the bipolar electrode on the catheter with the electronic unit provides a portable catheterization system particularly suitable for performing urgent cardiac catheterizations outside hospitals.

The present invention relates to a hemostasis valve device which allows a wire or a catheter to be inserted into the left or right coronary artery via the femoral artery or an arm artery when a Cardiac Catheterization or Percutaneous Transluminal Coronary Angioplasty operation is performed, wherein two independent sealing members are opened and closed by press and release actions of push buttons coupled to a body and the rotation of a fastening tube, respectively, so that the leakage of blood or the inflow of outside air is simply and effectively blocked during the operation, and a drug influx tube for allowing a medicine such as a thrombolitic drug to flow into a patient during the operation pivots and is adjusted in a stepwise manner within a certain range of angles according to body conditions or movements of the patient.

Embodiments of the present description provide a medical apparatus for use in supporting a patient lying in a supine position during a radial cardiac catheterization procedure. More particularly, embodiments of the present description provide an arm board a patient's arm during a radial cardiac catheterization procedure. The arm board has a base member having a substantially planar support surface on which the patient's arm can be stabilized during a catheterization procedure and at least one shield member affixed to the base member and extending away from the support surface. Desirably, the base member has both a radiolucent portion and a radiopaque portion and the shield member is a radiopaque material, thereby reducing and / or eliminating a doctor's exposure to radiation during radial cardiac catheterization procedures without impairing the ability to obtain the necessary medical images. Also provided is a medical apparatus and a method for its use.