Multifunctional balloon catheter system for cardiovascular stenosis

Abstract

The invention relates to a multifunctional balloon catheter system for cardiovascular stenosis. The multifunctional balloon catheter system comprises a distal end balloon catheter, a proximal end catheter, a handle and an energy generator; the distal end balloon catheter is connected with one end of the proximal end catheter; the other end of the proximal end catheter is connected with the handle; the handle is connected with the energy generator through a cable line; and the energy generator controls energy release of an electrode pair. A balloon with the electrode pair releases energy, a calcinosis lesion is shattered by generated energy shock waves, and drugs are released into vascular walls for absorption; and meanwhile, the length of the distal end balloon catheter can be adjusted for drug release according to a position of a vascular lesion, so that anti-regeneration drugs can be coated at stenosis positions for a multi-lesion position, and unblocked blood vessels are achieved. According to the multifunctional balloon catheter system for the cardiovascular stenosis, the operation is simple and easy, vascular stenosis and calcinosis are effectively treated, and long-term smoothness is achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a multifunctional balloon catheter system for cardiovascular stenosis. Background technique [0002] At present, clinically, cardiovascular stenosis lesions are complicated and diverse. The main treatment methods for severe calcified lesions include: ordinary balloon high-pressure dilation, cutting balloon dilation, rotational atherectomy, and laser angioplasty. The most widely used of these is rotational atherectomy. However, there are still obvious disadvantages such as complicated operation, easy to induce spasm, slow blood flow or no reflow; for calcified keratinous lesions, there is a high risk of perforation, high cost, and high requirements for the operator's operating skills. [0003] In recent years, drug-coated balloon (DCB) has been widely used clinically. The main mechanism is to penetrate paclitaxel into the artery wall to inhibit intimal hyperplasia. Compa...

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Problems solved by technology

However, in the process of drug delivery, the length of the drug delivery on the balloon cannot be adjusted according to the distance of the lesion; the main tube and the inner tube need to be matched according to different lesion conditions during treatment; there is no specific setting limit on the catheter of the system. position control and the sheath tube to control the drug delivery balloon; so there is still a relatively complicated treatment process and operation, so the cost in the treatment process is also high

[0005] Chinese patent CN111513818A also discloses a rotational atherectomy instrument for treating calcified coronary lesions, including a rotational atherectomy instrument host, a pedal control board, a nitrogen tank, a propeller, a rotational atherectomy catheter and a rotational atherectomy guide wire; There is a deceleration switch on the control board, and there is a deceleration control tube and two ventilation hoses connected to the outside of the pedal control board; the top of the nitrogen tank is provided with a gas outlet connector, which is connected to the nitrogen port through the gas supply pipe; the propeller includes Body, moving handle, optical fiber speed connection cable, saline input pipe and gas connecting pipe; the upper end surface of the body is provided with a bar-shaped groove, and the inside of the bar-shaped groove is slidingly installed with a moving handle. There is also a scale line on the side, and a handle stroke control structure is slidably installed on the body; a treatment plan for coronary artery calcification is proposed. The deviation of the front and rear progress of the rotary atherectomy head protects the coronary artery behind the calcified lesion from damage; however, it is insufficient for the delivery of drugs and the long-term patency of the lesion, and the substances involved in the treatment process will cause damage to the lesion and its surroundings. influences

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