A high-pressure vertebral body dilation balloon

Abstract

The utility model discloses a high pressure vertebral body dilatation balloon relates to medical instrument technical field, including the cylinder, one side of cylinder is equipped with the communication pipe who communicates with its inside, the communication pipe is connected with the auxiliary pipe away from one end of cylinder, is provided with the joint on the auxiliary pipe, the end portion fixed mounting of cylinder has the balloon, and the outer wall of balloon is circumferentially provided with a plurality of membrane. The utility model discloses through the sealing seat, the limiting seat and the support seat of setting, the synchronous overturning of convex plate can be driven to the region of balloon front for dredging, the route of cleaning balloon's advance makes balloon reach the scheduled area smoothly, and the deformation of balloon is driven to the silk handle of moving back and forth, adjusts the tension degree of balloon's self, cooperates the indication of developing mark, accurately judges the position, shape and dilatation degree of balloon, reduces the uneven dilatation caused when filling subsequent contrast medium, adjusts the operation of operation in time, ensures the smooth operation of operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a high-pressure vertebral body expansion balloon. Background Technology

[0002] A high-pressure vertebral dilatation balloon is a medical device used in vertebral body-related surgeries (such as vertebroplasty). The balloon is inserted percutaneously into the compressed vertebral body, and contrast agent is injected through a catheter, causing the balloon to gradually inflate. This inflation generates outward pressure, which expands the compressed vertebral body, restoring its height and creating a cavity within the vertebral body. This cavity provides space for subsequent injection of filler materials such as bone cement, allowing the patient to regain mobility as quickly as possible. It serves multiple purposes, including stabilizing the spine, relieving pain, and providing local treatment for tumors.

[0003] Existing vertebral body dilation balloons, due to differences in local bone structure within the vertebral body, are prone to friction and compression from the walls of the vertebral chambers when inserted to compress the fracture site. This can lead to wrinkles after placement, and excessive local pressure after contrast agent filling, resulting in deviation from the intended position or uneven dilation. These abnormalities hinder the smooth progress of the surgery and increase patient suffering and medical burden. Therefore, this application proposes a high-pressure vertebral body dilation balloon. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-pressure vertebral body expansion balloon.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-pressure vertebral body dilation balloon includes a cylindrical body, a connecting tube communicating with the interior of the cylindrical body on one side, an auxiliary tube connected to the end of the connecting tube away from the cylindrical body, a connector on the auxiliary tube, a balloon fixedly installed at the end of the cylindrical body, and multiple membranes arranged circumferentially on the outer wall of the balloon.

[0007] The cylinder is equipped with a guide wire inside. One end of the guide wire extending outside the cylinder is fixedly connected to a wire handle. The side wall of the wire handle is provided with multiple sets of anti-slip particles. The other end of the guide wire is sealed and connected through the balloon. The end of the guide wire extending outside the balloon is connected to an assembly block. A protruding plate is fixedly connected to the side wall of the assembly block. Multiple support seats are provided on the guide wire.

[0008] As a further preferred embodiment of this technical solution, two imaging markers are provided on the portion of the guidewire that extends into the balloon.

[0009] As a further preferred embodiment of this technical solution, the convex plate is designed as a semi-circular plate, and the side wall of the convex plate away from the assembly block is designed as an arc-shaped surface, and the diameter of the convex plate is equal to the inner wall diameter of the cylinder.

[0010] As a further preferred embodiment of this technical solution, the plurality of support seats are arranged circumferentially, and each of the plurality of support seats is provided with a through groove, and the through groove is inclined.

[0011] The end of the channel near the balloon is the first end, and the other end of the channel is the second end. The first end is near the inner wall of the cylinder, and the second end is near the through guide wire.

[0012] As a further preferred embodiment of this technical solution, a reinforcing rib is provided at one end of the cylinder, and the position of the reinforcing rib corresponds to the position of the support base;

[0013] A sealing seat is embedded at the other end of the cylinder, and the guide wire is connected to the sealing seat through it.

[0014] As a further preferred embodiment of this technical solution, a limiting seat is fixedly installed inside the cylinder, and the limiting seat is disposed between the connecting pipe and the sealing seat, with the guide wire and the limiting seat connected through each other.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model, through the setting of a sealing seat, a limiting seat, and a support seat, can maintain the stability of the guidewire during the insertion of the balloon into the cone, making it easy to control the position of the assembly block and the protrusion plate set at the end of the guidewire. Rotating the guidewire handle will eventually drive the protrusion plate to rotate synchronously, which can clear the area in front of the balloon, clear the balloon's travel path, and allow the balloon to smoothly reach the predetermined area. Moving the guidewire handle back and forth causes the balloon to deform, adjusting the balloon's tension. With the indication of the contrast marker, the position, shape, and degree of expansion of the balloon can be accurately determined, reducing uneven expansion caused by subsequent filling of contrast agent, and timely adjustment of surgical operations to ensure the smooth progress of the operation.

[0017] 2. This utility model, through multiple circumferentially arranged support seats and through grooves opened on the support seats, can guide the contrast agent during the filling of the balloon. Some of the contrast agent passes through the gaps between the support seats, while the other part of the contrast agent is guided by the inclined through grooves. The resulting flow fields merge and flow into the balloon. This helps to maintain a stable shape and balanced pressure distribution during balloon expansion, further avoiding the situation of local over-inflation or under-inflation of the balloon due to uneven distribution of contrast agent, thus improving the accuracy and safety of surgical operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of a high-pressure vertebral body expansion balloon proposed in this utility model;

[0019] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a frontal sectional view of a high-pressure vertebral body expansion balloon proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the guidewire structure of a high-pressure vertebral body dilation balloon proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the left-side structure of the support seat for a high-pressure vertebral body expansion balloon proposed in this utility model.

[0023] Figure 6 This is a right-side structural schematic diagram of the support seat for a high-pressure vertebral expansion balloon proposed in this utility model.

[0024] In the figure: 1. Cylinder; 11. Connecting pipe; 12. Auxiliary pipe; 13. Connector; 14. Reinforcing rib; 15. Limiting seat; 16. Sealing seat; 2. Balloon; 21. Covering membrane; 3. Guide wire; 31. Wire shank; 32. Development mark; 4. Assembly block; 41. Protruding plate; 5. Support seat; 51. Through groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] This utility model provides a technical solution: such as Figure 1 As shown, a high-pressure vertebral dilation balloon includes a cylindrical body 1. A connecting tube 11 communicating with the interior of the cylindrical body 1 is provided on one side of the cylindrical body 1. An auxiliary tube 12 is connected to the end of the connecting tube 11 away from the cylindrical body 1. A connector 13 is provided on the auxiliary tube 12. A reinforcing rib 14 is sleeved on one end of the cylindrical body 1, and the position of the reinforcing rib 14 corresponds to the position of the support seat 5. A limiting seat 15 is fixedly installed inside the cylindrical body 1, and the limiting seat 15 is located between the connecting tube 11 and the sealing seat 16. A guide wire 3 is connected through the limiting seat 15. A sealing seat 16 is embedded at the other end of the cylindrical body 1, and the guide wire 3 is connected through the sealing seat 16. The guide wire 3 and the limiting seat 15 are connected in a sealed sliding connection. When contrast agent is injected into the cylindrical body 1, the limiting seat 15 can seal one side of the cylindrical body 1, so that the contrast agent flows to the other end and finally enters the balloon 2.

[0027] like Figure 2As shown, a balloon 2 is fixedly installed at the end of the cylinder 1, and multiple membranes 21 are arranged circumferentially on the outer wall of the balloon 2. It should be noted that the membranes 21 are made of PET material. Relying on the elasticity of the membranes 21, they can provide a certain support for the balloon 2, thereby reducing the deformation of the balloon 2 during the insertion of the balloon 2 into the cone and facilitating the subsequent expansion and extension of the balloon 2. Furthermore, relying on the memory property of the membrane material, it helps the balloon 2 to return to its original length and angle, avoiding the influence of the rotation of the guide wire 3 on the expansion state of the balloon 2.

[0028] like Figure 3 and Figure 4 As shown, a guide wire 3 is provided inside the cylinder 1. One end of the guide wire 3 extending outside the cylinder 1 is fixedly connected to a wire handle 31, and multiple sets of anti-slip particles are provided on the side wall of the wire handle 31. The other end of the guide wire 3 is sealed and connected through the balloon 2. Two imaging marks 32 are provided on the part of the guide wire 3 extending into the balloon 2. Through the imaging marks 32, it is possible to detect in time whether the balloon 2 deviates from the predetermined position or whether there is uneven expansion or other abnormalities, so as to ensure that the balloon 2 can expand evenly and safely, so as to achieve the purpose of restoring the vertebral height and forming a suitable cavity.

[0029] In addition, the end of the guidewire 3 extending outside the balloon 2 is connected to an assembly block 4. A protruding plate 41 is fixedly connected to the side wall of the assembly block 4. The protruding plate 41 is designed as a semi-circular plate, and the side wall of the end of the protruding plate 41 away from the assembly block 4 is designed as an arc surface. The diameter of the protruding plate 41 is equal to the inner diameter of the cylinder 1. It should be noted that by moving the guidewire 31 to drive the protruding plate 41 to move synchronously, the distance between the protruding plate 41 and the end of the cylinder 1 can be adjusted to adjust the extension length of the balloon 2, so as to facilitate the insertion of the balloon 2 into the cavity between the cones, reduce the friction between the outer wall of the balloon 2 and the cones, and reduce the wrinkles caused after the balloon 2 is inserted into the target area. Furthermore, by driving the protruding plate 41 to rotate through the guidewire 31, the position of the protruding plate 41 can be adjusted, and the relative angle between the protruding plate 41 and the balloon 2 can be changed. When dealing with complex situations such as compression fractures and bone differences within the cones, the balloon 2 can be guided and protected in a targeted manner.

[0030] like Figure 5 and Figure 6As shown, the guidewire 3 is provided with multiple support seats 5, which are arranged circumferentially. Each of the multiple support seats 5 has a through groove 51, which is inclined. The end of the through groove 51 near the balloon 2 is the first end, and the other end of the through groove 51 is the second end. The first end is close to the inner wall of the cylinder 1, and the second end is close to the through guidewire 3. It should be noted that during the process of filling the balloon 2 with contrast agent, the multiple circumferentially arranged support seats 5 can guide the contrast agent. Some of the contrast agent passes through the gaps between the support seats 5, while the other part of the contrast agent is guided by the inclined through groove 51. The resulting flow fields merge and flow into the interior of the balloon 2. This helps to maintain a stable shape and balanced pressure distribution when the balloon 2 expands. Continuous injection of contrast agent causes it to flow towards the edge of the balloon 2, which can make the edge of the balloon 2 expand more rapidly. This helps to better open the tissues around the vertebral body and create more favorable spatial conditions for subsequent treatment operations.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-pressure vertebral body dilation balloon comprising a barrel (1), characterized in that, The cylindrical body (1) has a connecting pipe (11) communicating with its interior on one side. An auxiliary pipe (12) is connected to the end of the connecting pipe (11) away from the cylindrical body (1). A connector (13) is provided on the auxiliary pipe (12). A balloon (2) is fixedly installed at the end of the cylindrical body (1), and multiple membranes (21) are provided circumferentially on the outer wall of the balloon (2). The inside of the cylinder (1) is provided with a guide wire (3). One end of the guide wire (3) extending outside the cylinder (1) is fixedly connected to a wire handle (31). The side wall of the wire handle (31) is provided with multiple sets of anti-slip particles. The other end of the guide wire (3) is sealed and connected through the balloon (2). The end of the guide wire (3) extending outside the balloon (2) is connected to an assembly block (4). The side wall of the assembly block (4) is fixedly connected with a protruding plate (41). Multiple support seats (5) are provided on the guide wire (3).

2. A high-pressure vertebral body dilation balloon according to claim 1, wherein, Two imaging markers (32) are provided on the portion of the guidewire (3) that extends into the balloon (2).

3. The high-pressure vertebral body dilation balloon of claim 1, wherein, The convex plate (41) is designed as a semi-circular plate, and the side wall of the convex plate (41) away from the assembly block (4) is designed as an arc surface. The diameter of the convex plate (41) is equal to the inner wall diameter of the cylinder (1).

4. The high-pressure vertebral body dilation balloon of claim 1, wherein, The plurality of support bases (5) are arranged circumferentially, and each of the plurality of support bases (5) is provided with a through groove (51), and the through groove (51) is inclined. The end of the through groove (51) near the balloon (2) is the first end, and the other end of the through groove (51) is the second end. The first end is close to the inner wall of the cylinder (1), and the second end is close to the through guide wire (3).

5. The high-pressure vertebral body dilation balloon of claim 1, wherein, One end of the cylinder (1) is fitted with a reinforcing rib (14), and the position of the reinforcing rib (14) corresponds to the position of the support base (5); The other end of the cylinder (1) is fitted with a sealing seat (16), and the guide wire (3) is connected to the sealing seat (16) through it.

6. The high-pressure vertebral body dilation balloon of claim 1, wherein, A limiting seat (15) is fixedly installed inside the cylinder (1), and the limiting seat (15) is located between the connecting pipe (11) and the sealing seat (16). The guide wire (3) is connected to the limiting seat (15) through.

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