Interventional catheter, guide head for interventional catheter, interventional system and method

Abstract

The invention relates to the technical apparatus of medical apparatuses, and in particular to a guiding head of an intervention catheter. The guiding head is provided with a free end and a connectingend, wherein the free end is used for guiding the guiding head to do steering; the guiding head comprises an inner tube, an outer tube, a driving device and a pressure sensor; the inner tube is provided with a hollow inner cavity; the outer tube sleeves the exterior of the inner tube, and an annular compartment is kept between the inner tube and the outer tube; the driving device is arranged in the annular compartment and is used for driving deformation of the guiding head; and the pressure sensor is arranged at the free end and is used for sensing resistance borne by the free end in real time. The shape, turning angle and the like of the free end of the guiding head can be automatically controlled via the driving device, so that the intervention catheter can be precisely and effectively guided into a corresponding target blood vessel or a target lumen timely; and the current resistance of the guiding head can be precisely acquired via the pressure sensor which is arranged on the guiding head, so that traction force of the intervention catheter can be effectively controlled, and subsequently, injury to a lumen which the guiding head passes through due to excessive guiding force isavoided and a risk of causing various complications is reduced.

Description

Technical field [0001] The present invention relates to the technical field of medical devices, in particular to an interventional catheter, a guiding head of an interventional catheter, an interventional system and a method. Background technique [0002] Clinically, when interventional treatment is performed on patients through the lumen (including blood vessels and lumen), it is generally necessary to perform continuous exposure based on digital subtraction angiography (Digital Subtraction Angiography, referred to as DSA). Push and pull the guide wire to guide the catheter into the target area (such as the target blood vessel or target lumen). [0003] However, in the actual operation process, because the resistance of the catheter guide head is sensed manually and the steering head is controlled to steer, it requires repeated operations to implant the interventional catheter into the target area, especially for When a complex lumen is implanted, it may even cause damage to the ...

AI Technical Summary

Problems solved by technology

[0003] However, in the actual operation process, since the resistance condition of the catheter guide head is sensed manually and the guide head is controlled to steer, repeated operations are required to implant the interventional catheter into the target area, especially for When the complex lumen is implanted, the lumen it passes through may even be damaged due to the excessive guiding force of the guide head, resulting in many complications

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