Positioning balloon

Abstract

The utility model relates to a positioning balloon in the technical field of medical instruments. The positioning balloon comprises a catheter, a balloon body and a sensor. The top end of the catheter is a Luer interface, the bottom end of the catheter is a balloon connecting part, and an air hole is formed along the balloon connecting part; the sensor is installed on an end opening of the balloon connecting part, the balloon is connected to the balloon connecting part in a sleeved mode, the sensor is located in the balloon, and the end opening of the balloon is connected with the catheter rod body in a sealed mode. According to the positioning balloon, the sensor is arranged at the foremost end of the catheter, the positioning accuracy can be further improved compared with the technical measure that the sensor is located in the catheter, and the sensor is connected to the end of the catheter in a sealed mode and is arranged in the catheter relative to the sensor. The guide pipe structure can be further simplified, and the sensor is more convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and specifically, to a positioning balloon. Background Art

[0002] Balloon dilation refers to using a balloon to dilate a cavity or passage in the human body. It is widely used in the treatment of various diseases of the natural lumens of the human body. According to the application site, it can be divided into coronary balloons, peripheral vascular balloons, esophageal stenosis dilation balloons, etc. By using a catheter with an expansion balloon at the end, the doctor guides the balloon catheter into the blood vessel through fluoroscopy, locates it at the blood vessel lesion, and then expands the balloon by pressurizing the liquid to achieve the treatment purpose.

[0003] Currently, in the use of balloons, a positioning sensor is mostly built into the end of the catheter to achieve the purpose of precise positioning. For example, the publication number CN116966400A discloses a balloon wire with real-time positioning and its control method, including: a first tube body, a first balloon, and a magnetic sensor; the first balloon is fixed at the distal end of the first tube body; a magnetic sensor is provided at the end of the first tube body where the first balloon is located; a first ventilation channel and a magnetic sensor connection wire are arranged inside the first tube body; the first ventilation channel is communicated with the first balloon; a sealing valve is provided at the proximal end of the first ventilation channel; the magnetic sensor is connected to a display device through the magnetic sensor connection wire. This invention application integrates the sensor into the catheter, which not only has a relatively complex process, but also due to the sensor being located inside the catheter, its positioning accuracy cannot achieve the predetermined effect. Content of the Utility Model

[0004] Aiming at the defects in the prior art, the purpose of the utility model is to provide a positioning balloon.

[0005] According to a positioning balloon provided by the utility model, it includes a catheter, a balloon, and a sensor;

[0006] The top end of the catheter is a Luer connector. A balloon connection part is formed by extending a predetermined distance from the bottom end of the catheter towards the top end. Air holes are provided circumferentially along the balloon connection part.

[0007] One end of the sensor is embedded into the catheter cavity from the port of the balloon connection part. One end of the balloon is sleeved on the upper side of the balloon connection part, and the other end is connected to the sensor. The port of the other end of the sensor is located outside the balloon.

[0008] In some embodiments, there are multiple air holes, and the multiple air holes are arranged in an array along the circumferential surface of the balloon connection part.

[0009] In some embodiments, it further includes a connection plug and a wire harness. A wire harness port extends outward near the top end of the catheter. One end of the wire harness enters through the wire harness port and is electrically connected to the sensor, and the other end of the wire harness is electrically connected to the connection plug.

[0010] In some embodiments, a holding portion is provided near the upper end of the catheter. The holding portion extends radially outward along the circumferential surface of the catheter body by a predetermined distance.

[0011] In some embodiments, a transparent protective coating is coated on the end head portion of the sensor located outside the balloon.

[0012] In some embodiments, it further includes a ventilation switch pin. The ventilation switch pin is provided with a ventilation groove, and a pin hole is provided near the top end of the catheter. The pin hole penetrates the catheter horizontally. The ventilation switch pin is slidably connected in the pin hole. Pushing the ventilation switch pin to move left and right by a predetermined distance makes the ventilation groove communicate or not communicate with the catheter airway.

[0013] In some embodiments, ventilation positioning bumps and pressure maintaining positioning bumps are provided on the circumferential surface of the ventilation switch pin. The ventilation positioning bumps and the pressure maintaining positioning bumps are respectively located on both sides of the ventilation groove. A positioning groove is provided on the inner circumferential surface of the pin hole, and the positioning groove is adaptively connected to the ventilation positioning bumps or the pressure maintaining positioning bumps.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. For the positioning balloon of the present utility model, by placing the sensor at the very front end of the catheter, compared with the technical measure of placing the sensor inside the catheter, the positioning accuracy can be further improved. And the sensor is hermetically connected to the end of the catheter, compared with placing the sensor inside the catheter, it can further simplify the catheter structure and make the installation of the sensor more convenient.

[0016] 2. For the positioning balloon of the present utility model, by providing an air inlet and outlet control structure at the upper end of the catheter, the pressure of the balloon can be ensured without auxiliary operation, effectively improving the practicability of the positioning balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is Figure 1 the cross-sectional structure diagram of

[0020] Figure 3 is Figure 2 Schematic enlarged view of part A;

[0021] Figure 4 Schematic view of the structure of the catheter end;

[0022] Figure 5 Schematic view of the structure of the ventilation switch pin. Specific implementation mode

[0023] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several changes and improvements can still be made. These all belong to the protection scope of the present utility model.

[0024] Embodiment 1

[0025] This embodiment provides a positioning balloon, as Figures 1-5 shown, mainly including a catheter 100, a balloon 200 and a sensor 300. The catheter 100 is a hollow cylindrical structure, and the top end of the catheter 100 is a Luer interface 110 for communicating with an external trachea. A balloon connection part 120 is formed by extending a predetermined distance from the bottom end of the catheter 100 towards the top end. Air holes 121 are distributed on the balloon connection part 120, and there are multiple air holes 121, and the multiple air holes 121 are arranged in an array along the outer peripheral surface of the balloon connection part 120. In this embodiment, a holding part 140 is integrally formed on the upper part of the catheter 100. The holding part 140 is a structure that extends radially outward along the circumferential surface of the catheter 100 body and is easy to hold. Preferably, the surface of the holding part 140 is subjected to a matte treatment to increase the stability after holding the catheter 100.

[0026] The sensor 300 is a cylindrical structural member. One end of the sensor 300 is inserted into the cavity of the catheter 100 from the port of the balloon connection part 120 for a predetermined distance to achieve connection and achieve the technical effect of substantially sealing the port. The other end of the sensor 300 is located outside the balloon connection part 120. After the sensor 300 is connected to the balloon connection part 120, one port of the balloon 200 is hermetically connected to the rod body of the catheter 100, and the other end of the balloon 200 is connected to the main body of the sensor 300 and is close to the port of the sensor 300. At this time, the balloon 200 is sleeved outside the balloon connection part 120 and the main body of the sensor 300, and the end of the sensor 300 leaks out of the balloon 200 for sensing and positioning. In this embodiment, the sensor 300 is connected by a wired signal, and further includes a wire harness 500 electrically connected to the sensor 300, and a connection plug 400 electrically connected to the other end of the wire harness 500. The connection plug 400 is used to be electrically connected to an external controller. Correspondingly, a wire harness port 130 is formed near the top end of the catheter 100. The wire harness port 130 is formed by extending outward from the body of the catheter 100 for a predetermined distance. One end of the wire harness 500 enters the catheter 100 from the wire harness port 130 and is electrically connected to the sensor 300, and at the same time, the wire harness 500 is hermetically connected to the wire harness port 130. Through the wired signal connection method, the stability of the sensing effect of the sensor 300 can be effectively guaranteed. In this embodiment, a transparent protective coating is applied to the end head of the sensor 300, which can waterproof and moisture-proof the sensor and ensure the accuracy of positioning.

[0027] The working principle of the positioning balloon provided in this embodiment is as follows: The manipulator or manual operator holds the holding part 140 and sends the balloon connection part 120 of the catheter 100 to the corresponding position. By activating the connection plug 400, when the sensor 300 located at the front end of the balloon connection part 120 works and detects the predetermined position, the movement of the catheter 100 is stopped. The external syringe inflates the catheter 100 through the Luer interface 110. The gas enters the balloon 200 through the air hole 121 and inflates the balloon 200 to a predetermined amplitude and then maintains the pressure. Through the inflated balloon 200, the corresponding position can be revealed, facilitating subsequent medical operations. The positioning balloon provided in this embodiment can further improve the positioning accuracy by placing the sensor at the very front end of the catheter compared with the technical measure of placing the sensor inside the catheter. And the sensor is hermetically connected to the catheter end, compared with placing the sensor inside the catheter, it can further simplify the catheter structure and make the installation of the sensor more convenient.

[0028] Embodiment 2

[0029] This Embodiment 2 is formed on the basis of Embodiment 1. By providing an air inlet and exhaust control structure at the upper end of the catheter, the pressure of the balloon can be guaranteed without auxiliary operation, effectively improving the practicability of the positioning balloon. Specifically:

[0030] Such as Figures 1-5As shown in the figure, a pin hole 150 is provided near the Luer connector 110 at the upper end of the catheter 100. The pin hole 150 transversely penetrates the through hole of the catheter 100. A ventilation switch pin 600 for controllable air intake and exhaust is slidably connected to the pin hole 150 in a matching manner, and a ventilation groove 610 is provided on the ventilation switch pin 600. The outer diameter of the ventilation switch pin 600 is adapted to the inner diameter of the pin hole 150, and the length of the ventilation switch pin 600 is greater than the axial length of the pin hole 150. When the ventilation switch pin 600 is pushed to slide a predetermined distance along the pin hole 150 so that the ventilation groove 610 communicates with the inner cavity of the catheter 100, gas can flow in the catheter 100, and at this time, it can be for exhaust or intake; when the ventilation switch pin 600 is pushed to slide a predetermined distance in the opposite direction and the ventilation groove 610 does not communicate with the inner cavity of the catheter 100, the inner cavity openings of the catheter 100 on the upper and lower sides of the pin hole 150 are blocked through the rod body surface of the ventilation switch pin 600, so as to realize the pressure maintenance of the balloon.

[0031] In this embodiment, ventilation positioning bumps 620 and pressure maintenance positioning bumps 630 are provided on the circumferential surface of the ventilation switch pin 600. The ventilation positioning bumps 620 and the pressure maintenance positioning bumps 630 are respectively located on both sides of the ventilation groove 610. A positioning groove 151 is provided on the inner circumferential surface of the pin hole 150, and the positioning groove 151 is adapted to be connected to the ventilation positioning bumps 620 or the pressure maintenance positioning bumps 630. At this time, through the cooperative cooperation of the positioning bumps and the positioning groove 151, the stability of the position of the ventilation switch pin 600 can be ensured during ventilation or pressure maintenance. The above-mentioned ventilation positioning bumps 620 and pressure maintenance positioning bumps 630 can be an internal spring structure in the prior art, which is convenient for pushing and pulling.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application.

[0033] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. A positioning balloon, characterized in that: It comprises a catheter (100), a balloon (200) and a sensor (300); The top end of the catheter (100) is a Luer interface (110), and a balloon connection portion (120) is formed by extending a predetermined distance from the bottom end of the catheter (100) toward the top end, and air holes (121) are provided along the circumference of the balloon connection portion (120); One end of the sensor (300) is embedded in the cavity of the catheter (100) from the port of the balloon connecting part (120), one end of the balloon (200) is sleeved on the upper side of the balloon connecting part (120), and the other end is connected to the sensor (300), and the port of the other end of the sensor (300) is located outside the balloon (200).

2. The positioning balloon according to claim 1, characterized in that: There are a plurality of air holes (121), and the plurality of air holes (121) are distributed in an array along the circumference of the balloon connecting portion (120).

3. The positioning balloon according to claim 1, characterized in that: It also includes a connecting plug (400) and a wiring harness (500), which extends outward near the top end of the catheter (100) to form a wiring harness opening (130), one end of the wiring harness (500) enters from the wiring harness opening (130) and is electrically connected to the sensor (300), and the other end of the wiring harness (500) is electrically connected to the connecting plug (400).

4. The positioning balloon according to claim 1, characterized in that: A gripping portion (140) is provided near the upper end of the catheter (100), and the gripping portion (140) is formed by extending radially outwards by a predetermined distance along the circumference of the catheter (100) body.

5. The positioning balloon according to claim 1, characterized in that: The end portion of the sensor (300) located outside the balloon (200) is coated with a transparent protective coating.

6. The positioning balloon according to any one of claims 1 to 5, characterized in that: The invention also comprises a ventilation switch pin (600), wherein the ventilation switch pin (600) is provided with a ventilation groove (610), and a pin hole (150) is provided near the top end of the conduit (100), wherein the pin hole (150) passes through the conduit (100) transversely, and the ventilation switch pin (600) is slidably connected in the pin hole (150), and the ventilation switch pin (600) is pushed to move left and right by a predetermined distance, so that the ventilation groove (610) is connected or blocked with the airway of the conduit (100).

7. The positioning balloon according to claim 6, characterized in that: The circumferential surface of the ventilation switch pin (600) is provided with a ventilation positioning protrusion (620) and a pressure-maintaining positioning protrusion (630), and the ventilation positioning protrusion (620) and the pressure-maintaining positioning protrusion (630) are respectively located on both sides of the ventilation groove (610), and a positioning groove (151) is provided on the inner circumferential surface of the pin hole (150), and the positioning groove (151) is adaptively connected with the ventilation positioning protrusion (620) or the pressure-maintaining positioning protrusion (630).

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