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catheter system

A catheter and ablation catheter technology, which is applied in the field of catheter system, can solve the problems of dealing with partial damage and attached thrombus, and achieve the effect of avoiding fluid shortage

Inactive Publication Date: 2017-12-19
JAPAN LIFELINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, during the ablation procedure of the heart, etc., there may be problems such as damage caused by an excessive rise in temperature of the treated part, and thrombus adhering to the treated part.

Method used

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Embodiment approach

[0030] [overall composition]

[0031] figure 1 It is a schematic block diagram of an example of the overall configuration of a catheter system (catheter system 5 ) according to an embodiment of the present invention. The catheter system 5 is used for treating arrhythmia of a patient (patient 9 in this example), and includes an ablation catheter 1 , a liquid supply device 2 , a power supply device 3 , and a counter plate 4 . That is, in the catheter system 5 of the present embodiment, the liquid supply device 2 and the power supply device 3 are configured separately.

[0032] (ablation catheter 1)

[0033] The ablation catheter 1 is an electrode catheter that is inserted into the body of the patient 9 through a blood vessel to ablate an affected part to treat arrhythmia and the like. The ablation catheter 1 also has an irrigation mechanism for causing a predetermined irrigation liquid (for example, physiological saline, etc.) to flow out (eject) from the front end P1 side du...

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Abstract

The present invention provides a catheter system that allows proper perfusion maneuvers. The catheter system 5 includes an ablation catheter 1 having an irrigation mechanism, a power supply unit 32 for supplying power for ablation to the ablation catheter 1 , a liquid supply unit 21 for supplying an irrigation liquid to the ablation catheter 1 , and a control unit 35 . When the actual measured power Pm during ablation is in a high power state equal to or greater than the threshold power Pth, the control unit 35 controls a large flow rate operation; traffic action. In addition, when switching from a low power state to a high power state, the small flow rate operation is quickly switched to a large flow rate operation; on the other hand, when switching from a high power state to a low power state, the low power state continues during the transition. In the case of the first standby time, the high flow rate operation is switched to the low flow rate operation after the first standby time is maintained.

Description

technical field [0001] The present invention relates to a catheter system provided with a perfusion mechanism for, for example, treating arrhythmia and injecting a liquid such as physiological saline during ablation of an affected part of the treatment. Background technique [0002] Electrode catheters are inserted through blood vessels into the body (such as inside the heart) to detect and treat irregular heartbeats. In general, the shape of such an electrode catheter inserted into the body near the front end (distal end) changes (deflects, bends) in one direction or two directions according to the operation of the operation unit installed on the On the base (proximal, posterior, at hand) outside the body. In addition, in addition to the type in which the shape of the tip can be changed arbitrarily according to the operation, there is also a type in which the shape near the tip is fixed. [0003] However, among such electrode catheters, catheters used for treatment (so-ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12
CPCA61B18/1492A61B2018/00029A61B2018/00351A61B2018/00577A61B2018/00744A61B2018/00779A61B2018/00791A61B2018/1467
Inventor 小岛康弘堀内修一
Owner JAPAN LIFELINE CO LTD
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