EP-4736930-A1 - CATHETER INSTRUMENT AND HEART FAILURE TREATMENT INSTRUMENT

EP4736930A1EP 4736930 A1EP4736930 A1EP 4736930A1EP-4736930-A1

Abstract

A catheter device and a heart failure treatment device are provided. The catheter instrument comprises: a catheter body having a device pass-through lumen, a balloon catheter pass-through lumen, a balloon inflation lumen, and a pressure monitoring lumen that are not in communication with each other; a balloon sealedly coupled to an outer wall of the catheter body and connected to a distal end of the balloon inflation lumen; an attachment seat coupled to a proximal end of the catheter body and comprising a port for communication with the device pass-through lumen, a first side port for connection with the balloon catheter pass-through lumen, a second side port for connection with the balloon inflation lumen, and a third side port for connection with the pressure monitoring lumen. the balloon inflation lumen, a second side port in communication with the balloon catheter lumen, and a third side port in communication with the pressure monitoring lumen, wherein the port is for passage of a diagnostic instrument and the first side port is for passage of a balloon catheter; a first side branch for inputting a balloon inflation medium in communication with the second side port; and a second side branch for inputting a pressure monitoring medium in communication with the third side port.

Inventors

SUN, Shiche
CHEN, MENGXUAN
TANG, JIAN
BAI, Zhongai
SHI, Zhengmin

Assignees

Pulnovo Medical Pte. Ltd.

Dates

Publication Date: 20260506
Application Date: 20240619

Claims (12)

, A catheter instrument comprising: A catheter body having a lumen for passage of instruments not in communication with each other, a lumen for passage of a balloon catheter, a lumen for balloon inflation, and a lumen for pressure monitoring; A balloon, sealingly connected to the outer wall of said catheter body and in communication with the distal end of said balloon pressurized lumen; A coupling seat, coupled to a proximal end of said catheter body and comprising a port in communication with said instrument through a lumen, a first side port in communication with said balloon catheter through a lumen, a second side port in communication with said balloon pressure-filled lumen, and a third side port in communication with said pressure-monitoring lumen, wherein said port is for threading of a diagnostic instrument and said first side port is for threading of a balloon catheter A first side branch tube for input of balloon pressurization medium in connection with said second side port; and A second side branch for inputting a pressure monitoring medium in connection with said third side port.
, A catheterization device according to claim 1, wherein the Said catheter body is provided with at least one through-hole connecting said balloon pressurized lumen to said balloon, said balloon being a compliant walled balloon which in a contracted state abuts the outer wall of said catheter body.
, A catheterization device according to claim 2, wherein the The material of said balloon includes at least one of silicone, latex, polyurethane, and polyurethane.
, A catheterization device according to claim 1, wherein the Said instrument pass-through lumen, said balloon catheter pass-through lumen, said balloon inflation lumen and said pressure monitoring lumen are each circularly perforated, wherein the Said instrument is disposed sequentially in a first linear direction through the center of a circle in cross-section of the lumen, the center of a circle in cross-section of said catheter body, and the center of a circle in cross-section of said balloon catheter through the lumen; The center of a circle of a cross-section of said balloon filling lumen and the center of a circle of a cross-section of said pressure monitoring lumen are disposed sequentially along a second linear direction orthogonal to said first linear direction.
, A catheterization device according to claim 4, wherein the The aperture R 1 of said instrument passing through the lumen, the aperture R 2 of said balloon catheter passing through the lumen, the aperture R 3 of said balloon inflation lumen and the aperture R 4 of said pressure monitoring lumen satisfy: R 1 > R(2) > R(3) = R 4 .
, A catheterization device according to claim 1, wherein the Said catheter body comprises a body portion and a tip portion connected to a distal end of said body portion, wherein said instrument leads to a side of said tip portion through a lumen and a distal end of said pressure monitoring lumen, and said balloon catheter leads to an end face of said tip portion through a distal end of the lumen.
, A catheter instrument according to claim 6, further comprising: a first developing element disposed in an outer wall of said body portion; and/or A second developing element provided on the side of said tip portion.
, A catheter instrument according to claim 1, further comprising: a first gland provided in said port, and a first hemostatic valve provided within said port and held in place by said first gland; and A second gland provided in said first side port, and a second hemostatic valve provided within said first side port and held in place by said second gland.
, A catheterization device according to claim 8, wherein the Said first hemostatic valve is a radial compression hemostatic valve and said second hemostatic valve is a cross-cut hemostatic valve.
, A catheterization device according to claim 1, wherein the A luer fitting tee is provided at the proximal end of each of said first side branch and said second side branch.
, A catheterization device according to any one of claims 1 to 10, wherein the Said diagnostic instrument includes an examination catheter, a floating catheter, or an ablation catheter.
, A heart failure treatment device comprising: a catheterization device according to any one of claims 1 to 11.

Description

Technical field The present disclosure relates to the technical field of medical devices and, in particular, to a catheterization device and a heart failure treatment device. Background technology Heart failure is a series of symptoms that occur when the heart is not able to pump enough blood out of the heart due to a malfunction of the heart, resulting in a lack of blood perfusion. Heart failure is generally categorized into acute heart failure and chronic heart failure. Acute heart failure is most common in acute left heart failure, which is a clinical syndrome that occurs due to acute myocardial damage or increased cardiac load, resulting in a sudden drop in acute cardiac output, elevated pressure in the pulmonary circulation, increased peripheral circulatory resistance, and subsequent congestion in the pulmonary circulation with acute pulmonary stasis, pulmonary edema, and may be accompanied by inadequate perfusion of tissues and organs and cardiogenic shock. Chronic heart failure is categorized into right heart failure and left heart failure. In right heart failure, the ejection capacity of the right ventricle decreases and more blood remains in the right heart, resulting in increased pressure in the right heart and laborious flow of blood into the right heart. Since the blood flowing into the right heart is body circulation blood, there will be body circulation stagnation, and since the lower limbs are in the lower part of the body, the lower limbs stagnation is the most serious. When water passes from the blood vessels of the lower extremities into the surrounding tissues, edema of the lower extremities results. In left heart failure, the inflow of blood into the left heart from the pulmonary circulation leads to an increase in left atrial pressure and pulmonary venous pressure, which in turn leads to pulmonary bruising and pulmonary edema. In related techniques, depending on the different conditions of acute heart failure, the initial treatment is oxygen, diuretics and cardiotonic agents administered intravenously; if the condition remains unrelieved, vasoactive drugs are applied to dilate and constrict the blood vessels; if the condition is severe, with a sustained decrease in blood pressure or even cardiogenic shock, hemodynamic monitoring and emergency nonpharmacological treatments are required. There are limitations to the treatment modalities in the relevant techniques; for example, some patients respond well to intravenous diuretic therapy, but others do not. This is because, when there is too much fluid in the body, most of the excess fluid is not actually present in the lumen of the blood vessels, but in the interstitial space around the cells, a tissue called the interstitium. In order to adequately reduce congestion, the excess fluid in the interstitium of the cells first needs to be moved into the blood vessels. In the healthy body, this function is accomplished through drainage by the lymphatic system, which actively drains the fluid into the large veins above the heart. However, in patients with acute heart failure, the pressure in the large veins can be very high, which slows or even prevents the flow of lymphatic fluid into the large veins, thus impeding the process of relieving congestion. Incomplete diuresis (i.e., fluid retention) was found to be a strong predictor of rehospitalization and death, with up to half of acute heart failure patients discharged from the hospital without being completely "diuresed," resulting in about 25% of patients being readmitted to the hospital within one month, and about half of patients being readmitted within six months. How to improve the effectiveness of heart failure treatment is a technical problem that needs to be solved. Content of the invention Embodiments of the present disclosure provide a catheterization device and a heart failure treatment device that can be used to treat acute congestive heart failure and can achieve a good prognosis. According to an aspect of the present disclosure, there is provided a catheter instrument comprising a catheter body having a device pass-through lumen, a balloon catheter pass-through lumen, a balloon inflation lumen, and a pressure monitoring lumen that are not in communication with each other; a balloon that is sealingly connected to an outer wall of the catheter body and connected to a distal end of the balloon inflation lumen; an attachment seat that is connected to the proximal end of the catheter body and comprises a port in communication with the device pass-through lumen, a first side port in communication with the balloon catheter through the lumen, a first side port in communication with the balloon inflation lumen, a second side port in communication with the balloon inflation lumen, and a third side port in communication with the pressure monitoring lumen, wherein the port is for passage of a diagnostic and therapeutic instrument and the first side port is for passage of a balloon catheter; a