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Balloon catheter for ultrasound-guided percutaneous pulmonary valve balloon dilatation

A balloon catheter, pulmonary valve technology, applied in balloon catheter, dilator, surgery and other directions, can solve problems such as difficulty in accurate positioning, and achieve the effect of avoiding potential harm and increasing cross-sectional area

Active Publication Date: 2015-05-13
潘湘斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since ultrasound scans one section at a time, unlike radiation, which is a projection detection, the biggest difficulty when using ultrasound as the only guiding method is that ultrasound cannot accurately determine the position of the catheter tip in the heart like radiation. Difficulty in accurate positioning during surgery

Method used

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  • Balloon catheter for ultrasound-guided percutaneous pulmonary valve balloon dilatation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, the balloon catheter is a balloon catheter structure with three channels.

[0037] Wherein, the conduit is provided with three parallel and independent channels along its length direction, wherein the main channel runs through the entire conduit, and one side opening of the main channel is arranged at one end of the conduit to form a main channel. opening; the openings of the other two channels on the same side as the main opening of the main channel are respectively arranged at the side wall of the catheter, and the only corresponding sealing sleeve of the balloon is connected to each channel opening at the side wall to form inflatable sealed spaces that are independent of each other and do not interfere with each other, and form juxtaposed guiding balloons and working balloons according to the distances close to the main opening, wherein,

[0038] The diameter of the guiding balloon is 1-3cm, and the length AB of the guiding balloon socket...

Embodiment 2

[0042] The structure of the balloon catheter in this embodiment is the same as that in Embodiment 1, the only difference is that the diameter of the working balloon is 2-3 cm, and the length CD section of the working balloon socketed with the outer wall of the catheter is 2.8-3.2cm, and preferably 3cm; the diameter of the working balloon is still a model with every 0.2cm increase.

Embodiment 3

[0044] The three-channel catheter balloon described in Embodiments 1 and 2 above can be applied to patients with different degrees of pulmonary valve stenosis.

[0045] When the three-channel catheter balloon is used for patients with severe pulmonary valve stenosis, the method for using the above-mentioned three-channel balloon specifically includes the following steps:

[0046] (1) Take the balloon, puncture it through the femoral vein, and place it into an arterial sheath that matches the outer diameter of the catheter of the balloon, send the balloon into the body through the arterial sheath, and detect the lower cavity by ultrasound Venous section, when the catheter enters the right atrium through the inferior vena cava, inject gas into the guiding balloon through the filling valve to fully inflate the guiding balloon, and the catheter will pass through the tricuspid with the blood flow flap, reaching the right ventricular outflow tract, using ultrasound to detect the pos...

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Abstract

The invention belongs to the field of interventional therapy, and relates to a balloon catheter for ultrasound-guided percutaneous pulmonary valve balloon dilatation. The balloon catheter comprises a catheter and two balloons which are arranged on the outer side of the catheter, the balloons are connected with the catheter in a sleeving mode to achieve sealing, and the two balloons comprises a guiding balloon and a working balloon in sequence; three tunnels which are parallel in the length direction of the catheter and are independent from one to another, each balloon is correspondingly and only connected to the outer side of each tunnel opening located on the side wall in a sealing and sleeving mode, and therefore inflatable sealed spaces which are independent and non-interfering are formed. According to the dilatation used by the balloon catheter, ultrasound can be effectively used for guiding, and the harm brought by radioactive ray guiding in the prior art can be avoided. The double-balloon design is beneficial for reducing the diameter of the catheter and reducing complications of femoral vein injury, and suitable for an underweight patient. Spacing of 1-5 cm exists between the guiding balloon and the working balloon to enable the guiding balloon to play a role in positioning, and when the guiding balloon is located nearby an opening of a left pulmonary artery, the working balloon is exactly located on a pulmonary valve ring.

Description

technical field [0001] The invention belongs to the field of interventional therapy, and in particular relates to a balloon catheter for percutaneous pulmonary valve balloon dilatation under the guidance of ultrasound. Background technique [0002] Percutaneous balloon pulmonary valvuloplasty (PBPV) is an earlier interventional treatment for congenital heart disease. The first successful report was in 1982. Domestically, it also started in the late 1980s, and has accumulated relatively mature experience, and has become the first choice for the treatment of simple pulmonary valve stenosis. [0003] At present, percutaneous balloon pulmonary valvuloplasty requires the use of radiation and contrast media, which not only has a greater risk of radiation damage, but also affects the functions of bone marrow, genitals, and thyroid glands, and contrast media has the risk of causing allergies and renal failure . Therefore, it is intended to develop a safe surgical method and adapti...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61M29/02
Inventor 潘湘斌
Owner 潘湘斌
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