Displacement-preventing double-balloon catheter

Abstract

The utility model discloses an anti-displacement double-balloon catheter which comprises a catheter body, an outer balloon used for preventing the catheter body from displacing is arranged on the outer wall of the catheter body, a first connecting pipe is fixedly communicated with the inner wall of the outer balloon, and the outer balloon is connected with an external inflation device through a first connecting joint to inflate the outer balloon. The outer balloon becomes full and is attached to the inner wall of the blood vessel, displacement of the catheter is prevented, meanwhile, blood can circulate through a plurality of sets of upper through holes and a plurality of sets of lower through holes, blood supply of the pelvic cavity and the lower limbs is guaranteed, when the blood vessel needs to be blocked, the second connector is connected with an external air inflation device, the inner balloon is inflated, and therefore the blood vessel can be blocked. The inner balloon is filled and attached to the inner wall of the catheter, the effect of blocking blood flow is achieved, the inner balloon and the outer balloon are separated, the outer balloon cannot be attached to the inner balloon in the filled state, the inner balloon and the outer balloon are clear in work division, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an anti-displacement double-balloon catheter. Background Art

[0002] At present, abdominal aorta occlusion balloon has been widely used to prevent massive bleeding during surgery, especially for patients with pelvic tumors or severe placenta previa who are at high risk of bleeding. The use of abdominal aorta occlusion balloon during surgery can effectively reduce the amount of intraoperative bleeding, improve the visibility of the surgical field, and ensure the safety of the patient's surgery.

[0003] For example, an anti-displacement double-balloon catheter (Announcement No.: CN219398657U) includes a catheter, the outer wall of which is provided with an inner balloon for blocking the aorta, and the positioning unit includes an outer balloon that can expand and contact the blood vessel wall to position the inner balloon. The device is provided with an outer balloon and a positioning unit. When the device is used, the outer balloon is inflated. After the outer balloon is inflated, the outer balloon adheres to the blood vessel wall to fix and position the inner balloon, thereby preventing the inner balloon from being displaced. At the same time, blood can pass through the outer balloon through the upper through hole and the lower through hole, which does not significantly affect the blood flow and ensures the blood supply to the pelvic cavity and lower limbs. When the blood vessel needs to be blocked, the inner balloon is inflated. After the inner balloon is filled, the inner balloon and the outer balloon can be well attached to the wall to block the blood flow, thereby preventing the position of the balloon from shifting and resulting in poor blocking effect.

[0004] When the outer balloon of the device is inflated, the outer balloon expands to the surrounding and becomes filled, but the outer balloon in the filled state will enter the hollow groove and fit with the inner balloon, affecting blood circulation and thus affecting the patient's condition. Therefore, we need to propose an anti-displacement double-balloon catheter. Utility Model Content

[0005] The utility model aims to provide a double-balloon catheter with an anti-displacement function. By separating the inner balloon and the outer balloon, the outer balloon will not fit with the inner balloon in a filled state. The inner balloon and the outer balloon have clear division of labor and better use effect, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A double-balloon catheter with anti-displacement comprises a catheter, wherein an outer balloon for preventing displacement of the catheter is arranged on the outer wall of the catheter, a first connecting tube is fixedly connected to the inner wall of the outer balloon, and one end of the first connecting tube passes through the catheter and is located inside the catheter, an inner balloon for blocking the aorta is arranged inside the catheter, and a second connecting tube is fixedly connected to the outer wall of the inner balloon.

[0008] Preferably, one end of the first connecting tube away from the outer balloon passes through the catheter and is fixedly connected to the first air inlet pipe, and one end of the first air inlet pipe is provided with a first connecting joint.

[0009] Preferably, one end of the second connecting tube away from the inner balloon passes through the catheter and is fixedly connected to the second air inlet pipe, and one end of the second air inlet pipe is provided with a second connecting joint.

[0010] Preferably, a positioning rod is fixedly connected to the outer wall of the second connecting tube, and one end of the positioning rod is fixedly connected to the inner wall of the catheter.

[0011] Preferably, the outer wall of the upper end of the catheter located at the outer balloon is provided with a plurality of groups of upper through holes in a circular array, and the bottom of the catheter is provided with a plurality of groups of lower through holes.

[0012] Preferably, a marking ring is provided on the outer wall of the lower end of the outer balloon of the catheter.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is connected to an external inflation device through a first connecting joint, and an outer balloon is inflated, so that the outer balloon becomes filled and adheres to the inner wall of the blood vessel to prevent the catheter from being displaced. At the same time, blood can circulate through a plurality of groups of upper through holes and a plurality of groups of lower through holes to ensure blood supply to the pelvic cavity and lower limbs. When it is necessary to block the blood vessel, the second connecting joint is connected to the external inflation device to inflate the inner balloon, so that the inner balloon becomes filled and adheres to the inner wall of the catheter to block the blood flow. The inner balloon and the outer balloon are separated so that the outer balloon will not adhere to the inner balloon in a filled state. The inner balloon and the outer balloon have clear division of labor and a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model cut away;

[0017] Figure 3 This is a schematic diagram of the structure of the lower through hole of the utility model;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0019] In the figure: 1. catheter; 2. outer balloon; 3. first connecting tube; 4. inner balloon; 5. second connecting tube; 6. first air inlet pipe; 7. first connecting joint; 8. second air inlet pipe; 9. second connecting joint; 10. positioning rod; 11. upper through hole; 12. lower through hole; 13. marking ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A double-balloon catheter for preventing displacement comprises a catheter 1, an outer balloon 2 for preventing displacement of the catheter is arranged on the outer wall of the catheter 1, a first connecting tube 3 is fixedly connected to the inner wall of the outer balloon 2, and one end of the first connecting tube 3 passes through the catheter 1 and is located inside the catheter 1, an inner balloon 4 for blocking the aorta is arranged inside the catheter 1, a second connecting tube 5 is fixedly connected to the outer wall of the inner balloon 4, the outer balloon 2 is inflated so that the outer balloon 2 becomes full and adheres to the inner wall of the blood vessel to prevent displacement of the catheter 1, and the inner balloon 4 is inflated so that the inner balloon 4 becomes full and adheres to the inner wall of the catheter 1 to block blood flow;

[0023] One end of the first connecting tube 3 away from the outer balloon 2 passes through the catheter 1 and is fixedly connected to the first air inlet pipe 6. One end of the first air inlet pipe 6 is provided with a first connecting joint 7. The first connecting joint 7 can adopt a commonly used three-way joint, but is not limited to a three-way joint. The first connecting joint 7 is connected to an external inflation device, and the outer balloon 2 is inflated through the first air inlet pipe 6 and the first connecting tube 3. When the outer balloon 2 is inflated, the three-way joint as the first connecting joint 7 can be closed to ensure that the outer balloon 2 does not deflate.

[0024] One end of the second connecting tube 5 away from the inner balloon 4 passes through the catheter 1 and is fixedly connected with a second air inlet pipe 8. One end of the second air inlet pipe 8 is provided with a second connecting joint 9. The second connecting joint 9 can also adopt a commonly used three-way joint, but is not limited to a three-way joint. The second connecting joint 9 is connected to an external inflation device, and the inner balloon 4 is inflated through the second air inlet pipe 8 and the second connecting tube 5. When the inner balloon 4 is completely inflated, the three-way joint as the second connecting joint 9 can be closed to ensure that the inner balloon 4 does not deflate.

[0025] A positioning rod 10 is fixedly connected to the outer wall of the second connecting tube 5, and one end of the positioning rod 10 is fixedly connected to the inner wall of the catheter 1. The positioning rod 10 can fix the second connecting tube 5 to prevent the second connecting tube 5 from being displaced, thereby improving the stability of the inner balloon 4;

[0026] The catheter 1 is located on the outer wall of the upper end of the outer balloon 2 and has a plurality of groups of upper through holes 11 in a circular array, and a plurality of groups of lower through holes 12 are opened at the bottom of the catheter 1. Blood can flow through the plurality of groups of upper through holes 11 and the plurality of groups of lower through holes 12 to ensure blood supply to the pelvic cavity and lower limbs.

[0027] A marking ring 13 is provided on the outer wall of the lower end of the catheter 1 located at the outer balloon 2. The marking ring 13 is an X-ray-proof marker and is used to position the outer balloon 2.

[0028] Working principle: When the utility model is used, the external inflation device is connected through the first connecting joint 7, and the outer balloon 2 is inflated through the first air inlet pipe 6 and the first connecting tube 3, so that the outer balloon 2 becomes filled and adheres to the inner wall of the blood vessel to prevent the catheter 1 from being displaced. At the same time, blood can circulate through several groups of upper through holes 11 and several groups of lower through holes 12 to ensure blood supply to the pelvic cavity and lower limbs. When it is necessary to block the blood vessel, the second connecting joint 9 is connected to the external inflation device, and the inner balloon 4 is inflated through the second air inlet pipe 8 and the second connecting tube 5, so that the inner balloon 4 becomes filled and adheres to the inner wall of the catheter 1, which plays a role in blocking the blood flow. The inner balloon 4 and the outer balloon 2 are separated, so that the outer balloon 2 will not fit with the inner balloon 4 in the filled state. The inner balloon 4 and the outer balloon 2 have a clear division of labor and a good use effect.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-balloon catheter with an anti-displacement function, comprising a catheter (1), characterized in that: An outer balloon (2) for preventing displacement of the catheter is arranged on the outer wall of the catheter (1); a first connecting tube (3) is fixedly connected to the inner wall of the outer balloon (2); one end of the first connecting tube (3) passes through the catheter (1) and is located inside the catheter (1); an inner balloon (4) for blocking the aorta is arranged inside the catheter (1); a second connecting tube (5) is fixedly connected to the outer wall of the inner balloon (4).

2. The anti-displacement double-balloon catheter according to claim 1, characterized in that: One end of the first connecting tube (3) away from the outer balloon (2) passes through the catheter (1) and is fixedly connected to a first air inlet tube (6); one end of the first air inlet tube (6) is provided with a first connecting joint (7).

3. The anti-displacement double-balloon catheter according to claim 1, characterized in that: One end of the second connecting tube (5) away from the inner balloon (4) passes through the catheter (1) and is fixedly connected to a second air inlet pipe (8); one end of the second air inlet pipe (8) is provided with a second connecting joint (9).

4. The anti-displacement double-balloon catheter according to claim 1, characterized in that: A positioning rod (10) is fixedly connected to the outer wall of the second connecting tube (5), and one end of the positioning rod (10) is fixedly connected to the inner wall of the catheter (1).

5. The anti-displacement double-balloon catheter according to claim 1, characterized in that: The catheter (1) is provided with a plurality of groups of upper through holes (11) in a circular array on the outer wall of the upper end of the outer balloon (2), and a plurality of groups of lower through holes (12) are provided at the bottom of the catheter (1).

6. The anti-displacement double-balloon catheter according to claim 1, characterized in that: A marking ring (13) is provided on the outer wall of the lower end of the catheter (1) located on the outer balloon (2).

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