Combined cauterization and stent operation device
Inventors
Shin, Kyung Min • SHIN, Kyung Hoon • Kim, Dong Un
Assignees
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Publication Number
US-9770353-B2
Publication Date
2017-09-26
Expiration Date
Abstract
A combined cauterization and stent operation device for moving a stent to a lesion of a tubular tissue through a pipe member and performing a stent operation is provided that includes a bipolar electrode for cauterization configured to be disposed at an operation end of the pipe member to cauterize the lesion, and a high frequency generator configured to be connected to the bipolar electrode for cauterization to allow the bipolar electrode for cauterization to radiate a high frequency current.
Core Innovation
The invention relates to a combined cauterization and stent operation device for moving a stent to a lesion of a tubular tissue through a pipe member and performing a stent operation. A bipolar electrode for cauterization is disposed at an operation end of the pipe member, and a high frequency generator is connected to the bipolar electrode so that the bipolar electrode radiates a high frequency current to cauterize the lesion. The cauterization is performed in conjunction with moving the stent through the pipe member to the lesion.
The device includes a pipe member with a fixed pipe and at least one moving pipe. The fixed pipe has one end attached with a fixed handle for gripping and the other end provided with a stent sheet for seating a stent, and the at least one moving pipe has one end attached with a moving handle for gripping and is movably inserted longitudinally into an outer peripheral surface of the fixed pipe to charge the stent in the fixed pipe in a compressed state in the stent sheet.
The bipolar electrode includes an active electrode wound around one side of the outer peripheral surface of the fixed pipe or the moving pipe in a spiral form and a passive electrode wound alternatively with the active electrode several times. The active electrode and the passive electrode are wound at a constant alternating gap therebetween, and the active electrode or the passive electrode includes at least one continuously overlapping concentration part without alternating with the other electrode.
Claims Coverage
The document provides one independent claim describing the overall combined cauterization and stent operation device. The main inventive features are those recited in the independent claim, including the pipe member structure, the bipolar electrode, and the wound electrode arrangement.
Bipolar electrode at a stent-operation end driven by a high frequency generator
A combined cauterization and stent operation device comprising a bipolar electrode for cauterization configured to be disposed at an operation end of a pipe member to cauterize the lesion, and a high frequency generator configured to be connected to the bipolar electrode for cauterization to allow the bipolar electrode for cauterization to radiate a high frequency current.
Fixed pipe and movably inserted moving pipe for charging a stent to a lesion
The pipe member includes a fixed pipe configured to have one end attached with a fixed handle for gripping and the other end provided with a stent sheet for seating a stent, and at least one moving pipe configured to have one end attached with a moving handle for gripping and to be movably inserted longitudinally into an outer peripheral surface of the fixed pipe to charge the stent in the fixed pipe in a compressed state in the stent sheet.
Spiral active/passive bipolar electrode winding with constant alternating gap
The bipolar electrode for cauterization includes an active electrode configured to be wound around one side of the outer peripheral surface of the fixed pipe or the moving pipe in a spiral form several times, and a passive electrode configured to be wound around one side of the outer peripheral surface of the fixed pipe or the moving pipe alternatively with the active electrode several times, wherein the active electrode and the passive electrode are wound on the outer peripheral surface of the fixed pipe or the moving pipe at a constant alternating gap therebetween.
Overlapping concentration parts with denser gap or gapless region
The active electrode or the passive electrode each include at least one continuously overlapping concentration parts without any one thereof alternating with the other one electrode, and the concentration parts are wound around the outer peripheral surface of the fixed pipe or the moving pipe at a constant interval having a denser gap than the alternating gap or gapless.
Across the independent claim, the key inventive concept is integrating a bipolar cauterization electrode driven by a high frequency generator into a fixed-and-moving pipe stent delivery structure, with spiral active/passive electrode winding using a constant alternating gap and concentration parts wound with a denser gap or gapless arrangement.
Stated Advantages
Improves procedure efficiency by avoiding separate insertion of a cauterization electrode apparatus.
Reduces burden/cost.
Documented Applications
Used for moving a stent to a lesion of a tubular tissue through a pipe member and performing a stent operation, with cauterization of the lesion by high frequency current from the bipolar electrode.
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