CN110743102A - Adjustable curved intracardiac defibrillation catheter with inflatable air bag at head end - Google Patents

Abstract

The invention discloses an adjustable-bend intracardiac defibrillation catheter with an inflatable airbag at the head, which comprises a handle, and an outer surface of one end of the handle is provided with a balloon syringe interface and a defibrillation electrode tail line interface. The present invention makes the defibrillation catheter reach more cardiac cavity space accurately through the bending controller, better abuts against the ventricular muscle, realizes lower energy defibrillation, and is beneficial to the clinician's use. Through the defibrillation electrode, the electrical activity of each part in the cardiac cavity can be recorded, which is helpful for the clinician to determine the specific position of the electrode in the cardiac cavity. The head-end balloon can prevent the catheter from accidentally entering a small blood vessel and cause the risk of vascular rupture, which can increase the contact area between the catheter's head and the heart, prevent the catheter from puncturing the myocardium and cause the heart to rupture, and can achieve bedside blind delivery of the defibrillation catheter into the cardiac cavity. Reduce the damage to the body by x-rays, shorten the rescue time consumed by going to the cardiac catheterization room, and better grasp the best rescue time for the patient.

Description

A flexible intracardiac defibrillation catheter with an inflatable balloon at the head end

technical field

The invention relates to the field of low-energy electrical cardioversion or electrical defibrillation in cardiac interventional operations or during cardiac rescue, in particular to an adjustable intracardiac defibrillation catheter with an inflatable balloon at the head end.

Background technique

Intracardiac defibrillation catheter is a catheter for low-energy electrical cardioversion or electrical defibrillation during cardiac interventional operations or cardiac rescue. Its low-energy output can significantly reduce the pain of patients during electrical defibrillation. However, the maneuverability and safety of the existing intracardiac defibrillation catheters need to be improved.

During use, the intracardiac defibrillation catheter can complete the following forms of operations: use low-energy electrical cardioversion or electrical defibrillation in interventional cardiac surgery or during cardiac rescue.

Although the existing intracardiac defibrillation catheter has a simple structure and is easy to use, its design needs to rely on X-rays to guide the placement of the catheter, which is suitable for electrical cardioversion or electrical defibrillation during interventional operations in the cardiac catheterization laboratory. The inconvenience of operation during cardiac rescue limits the widespread use of intracardiac defibrillation catheters. The existing intracardiac defibrillation catheters do not have the function of bending, which is difficult to accurately deliver to the target cardiac chamber, with poor controllability and adjustable The head end of the curved catheter can form an inverted "U"-shaped structure, which can be more closely attached to the myocardium to achieve lower energy electrical cardioversion or defibrillation. During the process, it is easy to mistakenly enter the small branch blood vessels, which leads to the danger of blood vessel rupture. After the electrode tip is sent into the cardiac cavity, there is a risk of perforating the myocardium and causing the heart to rupture without the protection of the balloon. Intracardiac defibrillation catheter with inflatable balloon.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the existing defects and provide an adjustable intracardiac defibrillation catheter with an inflatable balloon at the head end, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: including a handle, the outer surface of one end of the handle is provided with a balloon-connecting syringe interface and a defibrillation electrode tail line interface, and the defibrillation electrode tail line interface is located at the balloon-connecting syringe interface. On one side of the interface, the middle outer surface of the handle is provided with a bending controller, the outer surface of the other end of the handle is provided with an extendable section, and the outer surface of one end of the extendable section is provided with a defibrillation electrode, the The outer surface of the defibrillation electrode is provided with a head-end balloon.

Preferably, a connecting catheter is provided between the balloon syringe interface and the head-end balloon, and the connecting catheter is located inside the extendable section.

Preferably, a positioning and bending shaft is provided between the handle and the bending controller, and the outer surface of the bending controller is movably connected to the outer surface of the handle through the positioning and bending shaft.

Preferably, a bending cable is provided between the bending controller and the defibrillation electrode, and an outer surface of one end of the defibrillation electrode is fixedly connected to the outer surface of one end of the bending cable.

Preferably, the outer surface of the handle is provided with anti-skid patterns.

Preferably, a bending line segment is provided between the extendable segment and the defibrillation electrode.

Preferably, a protective connection sleeve is provided between the handle and the extendable section, and the outer surface of the other end of the handle is fixedly connected to the outer surface of the other end of the extendable section through the protective connection sleeve.

Preferably, the outer surface of one end of the balloon syringe interface is provided with a syringe cone interface, the defibrillation electrode is composed of a plurality of mutually independent electrodes, and each electrode is connected to the defibrillation electrode tail wire interface through an internal cable, and the internal cable is located in Extendable section interior.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the defibrillation electrode can be pulled by the internal bend adjustment cable by rotating the bend adjustment controller, so that the bend adjustment line segment between the extendable section and the defibrillation electrode is bent, so as to realize the intracardiac defibrillation catheter. The function of bending can be smoothly transported to the target cardiac chamber, and can form an inverted "U"-shaped structure, avoiding the direct contact of the catheter tip against the myocardium, making it safer and more effective against the myocardium, and achieving lower energy defibrillation.

2. The present invention uses the head-end balloon. When treating the patient, the head-end balloon can be filled with liquid through a syringe to make it expand, which can effectively prevent the blind delivery (without X-ray) of the catheter from accidentally entering the small blood vessel and causing the rupture of the blood vessel. Dangerous, a catheter can be placed beside the bed to shorten the rescue time consumed by going to the cardiac catheterization room, and the contact area between the catheter tip and the myocardium can be increased after the catheter tip is sent into the cardiac chamber, reducing the risk of cardiac rupture caused by the catheter tip puncturing the myocardium. risk.

Description of drawings

Fig. 1 is the overall schematic diagram of the present invention;

Fig. 2 is the structural representation of the head-end balloon inflation form of the present invention;

Fig. 3 is the structural representation of the head-end balloon of the present invention inflated and bent;

4 is a schematic structural diagram of the head-end balloon of the present invention inflated and bent to the other side;

In the figure: 1. Handle; 2. Balloon syringe interface; 3. Defibrillation electrode tail wire interface; 4. Bend controller; 5. Extendable segment; 6. Defibrillation electrode; 7. Head-end balloon.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-4, the present invention provides a technical solution: including a handle 1, an outer surface of one end of the handle 1 is provided with a balloon syringe interface 2 and a defibrillation electrode tail wire interface 3, and the defibrillation electrode tail wire interface 3 is located in the ball One side of the capsule injector interface 2, the middle outer surface of the handle 1 is provided with a bending controller 4, the outer surface of the other end of the handle 1 is provided with an extendable section 5, and one end of the outer surface of the extendable section 5 is provided with a defibrillation electrode 6 , the outer surface of the defibrillation electrode 6 is provided with a head-end balloon 7 .

It can be ensured that no accident occurs during the rescue process. In this embodiment, preferably, a connecting catheter is provided between the balloon syringe interface 2 and the head-end balloon 7, and the connecting catheter is located inside the extendable section 5. .

It can be convenient for medical staff to adjust the defibrillation electrode 6 to bend to different positions. In this embodiment, preferably, a positioning and bending axis is provided between the handle 1 and the bending controller 4, and the outer surface of the bending controller 4 is positioned by positioning The bending shaft is movably connected with the outer surface of the handle 1 .

The defibrillation electrode 6 can reach more intracardiac space and realize lower energy defibrillation. In this embodiment, preferably, a bending cable is provided between the bending controller 4 and the defibrillation electrode 6. One end of the outer surface of the defibrillation electrode 6 is fixedly connected to one end of the outer surface of the bending cable.

It is convenient for medical staff to hold the handle 1 stably and avoid slipping. In this embodiment, preferably, the outer surface of the handle 1 is provided with anti-slip patterns.

The bend adjustment function of the defibrillation electrode 6 can be realized. In this embodiment, preferably, a bend adjustment line segment is provided between the extendable section 5 and the defibrillation electrode 6 .

The protective skin at the connection between the extendable section 5 and the handle 1 can be protected from damage and cracks. In this embodiment, preferably, a protective connection sleeve is provided between the handle 1 and the extendable section 5, and the outer surface of the other end of the handle 1 is provided. It is fixedly connected with the outer surface of the other end of the extendable section 5 through a protective connecting sleeve.

The defibrillation catheter can be placed beside the bed to avoid the use of X-rays to cause harm to the human body and effectively shorten the rescue time. The defibrillation electrode 6 is composed of multiple independent electrodes, and each electrode is connected to the defibrillation electrode tail wire interface 3 through an internal cable. can record the intracardiac potential to help medical staff determine the position of the cardiac chamber where the cardiac catheter is located, and can connect an external cardiac defibrillator through the defibrillation electrode tail line interface 3 to perform intracardiac defibrillation. , the outer surface of one end of the balloon syringe interface 2 is provided with a syringe cone interface, the defibrillation electrode 6 is composed of a plurality of mutually independent electrodes, each electrode is connected to the defibrillation electrode tail line interface 3 through an internal cable, and the internal cable is located in the extendable electrode. Inside segment 5.

The working principle and use process of the present invention: the intracardiac defibrillation catheter is used for low-voltage electrical cardioversion or defibrillation in cardiac interventional operations or during cardiac rescue, and the intracardiac defibrillation catheter can be controlled by bending The device 4 adjusts the bending position of the defibrillation electrode 6, which can make the defibrillation electrode 6 flexibly reach more intracardiac space, and can form an inverted "U"-shaped structure, which can be closely attached to the myocardium and achieve lower energy defibrillation. It is beneficial to the use of medical staff. The set head-end balloon 7 can prevent the risk of blood vessel rupture caused by mistakenly entering small blood vessels when the catheter is not placed with X-rays. The risk of cardiac rupture due to intracavitary perforation of the myocardium can improve the safety of placing catheters at the bedside, shorten the rescue time consumed by going to the cardiac catheterization room, increase the rescue efficiency of patients, and grasp the best rescue time for patients. Useful for clinicians.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. An adjustable curved intracardiac defibrillation catheter with an inflatable balloon at the head end, comprising a handle (1), characterized in that: the utility model discloses a medical instrument, including handle (1), the one end surface of handle (1) is provided with sacculus syringe interface (2) and defibrillation electrode tail line interface (3), defibrillation electrode tail line interface (3) are located one side of sacculus syringe interface (2), the middle part surface of handle (1) is provided with transfers curved controller (4), the other end surface of handle (1) is provided with can prolong section (5), the one end surface of can prolong section (5) is provided with defibrillation electrode (6), the surface of defibrillation electrode (6) is provided with head end sacculus (7).

2. The adjustable curved intracardiac defibrillation catheter according to claim 1, wherein: a connecting air duct is arranged between the balloon connecting injector interface (2) and the head end balloon (7), and the connecting air duct is positioned inside the extensible section (5).

3. The adjustable curved intracardiac defibrillation catheter according to claim 1, wherein: a positioning bending adjusting shaft is arranged between the handle (1) and the bending adjusting controller (4), and the outer surface of the bending adjusting controller (4) is movably connected with the outer surface of the handle (1) through the positioning bending adjusting shaft.

4. The adjustable curved intracardiac defibrillation catheter according to claim 1, wherein: a bend adjusting cable is arranged between the bend adjusting controller (4) and the defibrillation electrode (6), and the outer surface of one end of the defibrillation electrode (6) is fixedly connected with the outer surface of one end of the bend adjusting cable.

5. The adjustable curved intracardiac defibrillation catheter according to claim 1, wherein: the outer surface of the handle (1) is provided with anti-skid grains.

6. The adjustable curved intracardiac defibrillation catheter according to claim 1, wherein: and a bending line segment is arranged between the extensible segment (5) and the defibrillation electrode (6).

7. The adjustable curved intracardiac defibrillation catheter according to claim 1, wherein: a protective connecting sleeve is arranged between the handle (1) and the extensible section (5), and the outer surface of the other end of the handle (1) is fixedly connected with the outer surface of the other end of the extensible section (5) through the protective connecting sleeve.

8. The adjustable curved intracardiac defibrillation catheter according to claim 1, wherein: connect the one end surface of sacculus syringe interface (2) to be provided with syringe toper interface, defibrillation electrode (6) comprise a plurality of mutual independent electrodes, and each electrode passes through internal cable to be connected in defibrillation electrode tail wire interface (3), and internal cable is located inside extension section (5).

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