Lead extraction methods and apparatus

A lead wire, the technology of the lead wire, applied in medical science, surgery, heart electrodes, etc., can solve problems such as tearing internal blood vessels, injury, and patient danger
CN102348422AInactive Publication Date: 2012-02-08LEADEX CARDIAC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LEADEX CARDIAC
Publication Date
2012-02-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

According to one aspect, a device for assisting in removing an implanted lead is provided. The device comprises a body portion having a center adapted to accommodate the lead, a cutting component coupled to the body portion to assist in separating tissue from the lead, and at least one anchoring component disposed at least partially within the body portion, the at least one anchoring component capable of providing pressure on the lead that resists movement of at least part of the body portion along the lead at least in part by applying fluid pressure.
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Description

technical background

[0001] Many heart conditions are typically treated with pacemakers or implantable cardioverter-defibrillators (ICDs), which deliver electrical energy to the heart muscle so that the patient's heart beats at a normal rhythm. Typically, such devices are implanted by inserting thin, flexible leads into a vein to guide one or more distal electrodes into the atria and ventricles. The leads deliver electrical energy to the myocardium via distal electrodes in contact with and / or anchored in each ventricular wall according to the desired heart rhythm. The proximal end of the lead is connected to an energy source that generates electrical energy that is provided to the heart via the distal electrode.

[0002] figure 1 A schematic diagram of an example of pacemaker implantation is shown. The lead wire 120 has a terminal connector 130c at one end and distal electrodes 130a and 130b at the other end. Lead wires are inserted into the left or right subclavian vein a...

Claims

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