Pulmonary artery wedge pressure balloon

Abstract

The utility model relates to the technical field of medical instruments, in particular to a pulmonary artery wedge pressure balloon. The pulmonary artery wedge pressure balloon comprises a catheter and a balloon body, one end of the catheter is provided with an inclined and elastic bent section, the balloon body is arranged on the outer wall of the end of the bent section, an airflow cavity channel communicated with an inner cavity of the balloon body is formed in the catheter, and the airflow cavity channel penetrates out of the side wall of the other end of the catheter. The pulmonary artery pressure detector has the advantages that the structural design is simple and reasonable, the use cost is low, and the pulmonary vessel pressure information of a pulmonary artery hypertension patient can be effectively detected, so that medical staff can judge the drug effect of administration according to the information or accurately evaluate the interventional operation of the patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a pulmonary artery wedge pressure balloon. Background Art

[0002] Clinically, for patients with pulmonary hypertension, it is necessary to determine the specific effects of drugs on the patients, or to evaluate the patients for interventional surgery, both of which require accurate monitoring of the patients' pulmonary artery pressure.

[0003] Currently, thermal flotation catheters are commonly used clinically to monitor pulmonary artery pressure. However, the high cost of consumables for thermal flotation catheters makes their use relatively expensive, and the use of thermal flotation catheters for monitoring pulmonary artery pressure also places high demands on the surgeon.

[0004] Based on this, a low-cost pulmonary artery wedge pressure balloon was developed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a pulmonary artery wedge pressure balloon, which effectively overcomes the defects of the prior art.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A pulmonary artery wedge pressure balloon comprises a catheter and a balloon. One end of the catheter is provided with an inclined and elastic bending section. The balloon is arranged on the outer wall of the end of the bending section. An airflow lumen is provided in the catheter and communicates with the inner lumen of the balloon. The airflow lumen passes through the side wall of the other end of the catheter.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, it also includes a blood pressure sensor, which is detachably mounted on the other end port of the catheter.

[0010] The blood pressure sensor is arranged at the end of the threaded joint, and the threaded joint is detachably installed in the port at the other end of the catheter.

[0011] The inclination angle of the bending section relative to the conduit is α, where α=30-90°.

[0012] After the balloon is expanded, it is conical in shape, with the tip facing the end of the bent section.

[0013] A pressure sensor is provided in the balloon, and a wire connected to the pressure sensor is provided on the inner wall of the catheter. The wire passes through the other end side wall of the catheter.

[0014] The beneficial effects of the utility model are: simple and reasonable structural design, low cost of use, and the ability to effectively detect pulmonary vascular pressure information of patients with pulmonary hypertension, so that medical staff can judge the efficacy of medication based on the information, or accurately evaluate the patient's interventional surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the pulmonary artery wedge pressure balloon of the present invention;

[0016] Figure 2 This is a schematic structural diagram of another embodiment of the pulmonary artery wedge pressure balloon of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Catheter; 2. Balloon; 3. Blood pressure sensor; 4. Threaded joint; 5. Pressure sensor; 11. Bend section; 12. Airflow cavity. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] Example: Figure 1 As shown, the pulmonary artery wedge pressure balloon of this embodiment includes a catheter 1 and a balloon 2. One end of the above-mentioned catheter 1 is provided with an inclined and elastic bending section 11, and the above-mentioned balloon 2 is arranged on the outer wall of the end of the above-mentioned bending section 11. The above-mentioned catheter 1 is provided with an airflow lumen 12 connected with the inner cavity of the above-mentioned balloon 2 (specifically, one end of the airflow lumen 12 passes through the side wall of the bending section 11 to communicate with the balloon 2), and the above-mentioned airflow lumen 12 passes through the side wall of the other end of the above-mentioned catheter 1.

[0021] For monitoring pulmonary vascular pressure in patients with pulmonary hypertension, the catheter 1 is advanced to the target pulmonary artery location via a guidewire after puncture. A balloon 2 is then inflated using an inflation device external to the airflow channel 12. The inflated balloon 2 comes into close contact with the vessel wall, positioning the catheter 1. Once positioned, an instrument or device for detecting vascular pressure is connected to the other end of the catheter 1 for monitoring. The entire pulmonary artery wedge pressure balloon boasts a simple, rational design and low cost. It effectively measures pulmonary vascular pressure in patients with pulmonary hypertension, enabling medical personnel to assess the efficacy of medications and accurately assess interventional procedures.

[0022] As a preferred embodiment, it further comprises a blood pressure sensor 3 , which is detachably mounted on the other end port of the catheter 1 .

[0023] In the above embodiment, the entire wedge-pressure balloon is equipped with a built-in blood pressure sensor 3. After the catheter 1 enters the pulmonary artery and is positioned by the balloon 2, the blood pressure sensor 3 is installed at the other end of the catheter 1. Blood in the blood vessel enters the catheter 1 and is detected by the blood pressure sensor 3, allowing for intuitive monitoring of detailed data. The blood pressure sensor 3 is connected to a host computer or other related equipment, and the blood pressure information is fed back to the display of the host computer or equipment.

[0024] As a preferred embodiment, the blood pressure sensor 3 is arranged at the end of the threaded joint 4, and the threaded joint 4 is detachably installed in the other end port of the catheter 1.

[0025] In the above embodiment, the threaded connector 4 can be a conventional catheter or sheath connector. Its specific model and size are compatible with the size of the catheter 1. After the catheter 1 enters the target position of the pulmonary artery, the threaded connector 4 is assembled into the other end port of the catheter 1. The blood pressure sensor 3 directly contacts the blood entering the catheter 1 to detect pulmonary hypertension information.

[0026] In this embodiment, the bend section 11 is inclined at an angle α relative to the catheter 1, where α = 30-90°. The bend section 11 is highly elastic and can adaptively adjust its bend angle according to the shape of the blood vessel during entry into the pulmonary artery, facilitating entry of the entire catheter 1.

[0027] As a preferred embodiment, the balloon 2 is conical after expansion, with the tip facing the end of the bending section 11 .

[0028] In the above embodiment, the balloon 2 forms a tapered shape after expansion, which adapts to the pulmonary artery. Specifically, since the pulmonary artery has a diameter ranging from large to small, the balloon 2 forms a tapered shape after expansion that adapts to the shape of the vessel's inner wall. This allows the balloon 2 to fit more closely and seamlessly against the vessel wall, resulting in more accurate and stable positioning.

[0029] As a preferred embodiment, Figure 2 As shown, a pressure sensor 5 is provided in the balloon 2 , and a wire connected to the pressure sensor 5 is provided on the inner wall of the catheter 1 , and the wire passes through the other end side wall of the catheter 1 .

[0030] In the above embodiment, the purpose of designing a pressure sensor 5 in the balloon 2 is to connect the catheter 1 to the host device and inflate the balloon 2 via a wire connected to the pressure sensor 5. After the catheter 1 enters the target pulmonary artery, the balloon 2 is inflated. The pressure sensor 5 can monitor the internal pressure of the balloon 2 in real time and feed it back to the host device for display. This pressure information provides intuitive feedback on the pressure exerted by the balloon 2 on the blood vessel wall. Medical personnel can use this pressure information to decide whether to continue inflating the balloon 2, ensuring that the pressure exerted on the blood vessel wall by the balloon 2 is within a safe pressure range and avoiding high-pressure compression or damage to the blood vessel wall. This ensures the safety and effectiveness of the entire wedge pressure process.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0036] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pulmonary artery wedge pressure balloon, characterized by: The invention comprises a catheter (1) and a balloon (2), wherein one end of the catheter (1) is provided with an inclined and elastic bending section (11), the balloon (2) is arranged on the outer wall of the end of the bending section (11), and the catheter (1) is provided with an air flow cavity (12) communicating with the inner cavity of the balloon (2), and the air flow cavity (12) passes through the side wall of the other end of the catheter (1); It also includes a blood pressure sensor (3), which is detachably mounted on the other end port of the catheter (1).

2. The pulmonary artery wedge pressure balloon according to claim 1, characterized in that: The blood pressure sensor (3) is arranged at the end of a threaded joint (4), and the threaded joint (4) is detachably mounted in the other end port of the catheter (1).

3. The pulmonary artery wedge pressure balloon according to claim 1, characterized in that: The inclination angle of the bending section (11) relative to the conduit (1) is α, and α=30-90°.

4. The pulmonary artery wedge pressure balloon according to claim 1, characterized in that: After the balloon (2) is expanded, it is conical, with the tip facing the end of the bent section (11).

5. The pulmonary artery wedge pressure balloon according to claim 1, characterized in that: A pressure sensor (5) is provided in the balloon (2), and a wire connected to the pressure sensor (5) is provided on the inner wall of the catheter (1), and the wire passes through the other end side wall of the catheter (1).

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