Integrated dilatation balloon stent system

Abstract

The utility model relates to the technical field of medical instruments and equipment, and discloses an integrated dilatation balloon support system which comprises a double-channel inner tube and an outer tube arranged outside the double-channel inner tube in a sleeved mode, and one end of the double-channel inner tube is connected with a traction head. The double-channel inner tube is sequentially sleeved with a balloon and an expansion support from the end close to the traction head to the end away from the traction head, and the balloon is communicated with one channel in the double-channel inner tube. According to the integrated dilation balloon support system, the balloon and the dilation support are designed on the same releaser, the guide wire can be guaranteed to penetrate through the double-channel design skill, dilation of the balloon can be achieved, most importantly, instruments for independently operating the balloon are not needed, and the effect of shortening operation time is achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an integrated dilatational balloon stent system. Background Technology

[0002] Tumors of the bile duct, esophagus, intestines, and surrounding organs often cause malignant obstruction, requiring rapid relief of the obstruction and sustained maintenance of patency; otherwise, it can endanger the patient's life. Stent implantation is the main method of palliative treatment for malignant obstructive jaundice.

[0003] The traditional method of using a stent system is as follows:

[0004] First, an endoscope is inserted through the mouth or anus. Under the guidance of the display screen, the endoscope is slowly advanced to the lesion site. Careful observation is performed to locate the lesion and determine the position for placing the dilatation stent. Next, a release device with the dilatation stent is inserted into the lesion through the endoscope. After blindly passing the guide wire through the narrowed part of the lesion through the release device, the dilatation stent is slowly released into the lesion site. Then, the release device and the endoscope are withdrawn.

[0005] The improved stent system also includes dilatation balloons and particle bag stents. The purpose of dilatation balloons is to expand the narrowed lesion to facilitate the placement of dilatation stents. Specifically, before the delivery unit is inserted, a balloon connected to a thin catheter is placed at the lesion, and the balloon is inflated to expand the lesion by connecting a syringe to the distal end. Particle bag stents are used to carry radioactive particles for sustained-release therapy at the lesion. Specifically, after the balloon is expanded and pushed out, the particle bag stent is first released to the lesion using a delivery unit, and then the dilatation stent is first released to the lesion using another delivery unit.

[0006] However, the improved support system still has shortcomings:

[0007] The dilatation balloon is a separate instrument that requires insertion, withdrawal, and testing, which wastes time during use. The particle bag stent and the dilatation stent each require a release device, which also requires insertion, withdrawal, and testing, wasting a lot of surgical time. Utility Model Content

[0008] The purpose of this invention is to provide an integrated dilatational balloon stent system to solve the problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0010] An integrated dilatational balloon stent system includes a dual-channel inner tube and an outer tube sleeved outside the dual-channel inner tube. One end of the dual-channel inner tube is connected to a traction head. A balloon and a dilatational stent are sequentially sleeved on the dual-channel inner tube from the end closer to the traction head to the end farther away from the traction head. The balloon is connected to one of the channels of the dual-channel inner tube.

[0011] The advantages of this stent system compared to existing technologies are: the balloon and the dilator are designed on the same release device, and the dual-channel design ensures the passage of the guidewire while also enabling balloon dilation. Most importantly, there is no need for separate balloon manipulation instruments, which reduces the operation time.

[0012] Furthermore, a particle bag support is fitted outside the balloon;

[0013] The advantage of this setup is that the particle bag stent can be inserted into the lesion site along with the balloon, and then the balloon can be expanded, thus saving the insertion time of the particle bag stent, and more importantly, saving the time of inserting and removing a release device.

[0014] Furthermore, the outer wall of the dual-channel inner tube is also equipped with damping components corresponding to the expansion support and the particle bag support, respectively.

[0015] The damping component is designed to provide a certain damping effect on the expansion support and particle bag support. When the outer tube is displaced relative to the inner tube of the dual channel and exposes them, it ensures that they expand in situ rather than moving with the outer tube.

[0016] Furthermore, an inner tube handle is connected to one end of the dual-channel inner tube away from the traction head. The other channel of the dual-channel inner tube extends to connect the traction head and the inner tube handle, so that the guide wire can pass through the inner tube handle, the dual-channel inner tube, and the traction head in sequence. The inner tube handle is used for gripping.

[0017] Furthermore, an injection port is formed on the inner tube handle, and the channel on the dual-channel inner tube that connects to the balloon is also connected to the injection port.

[0018] Furthermore, several angiography points are dispersed on the outer wall of the dual-channel inner tube. These angiography points are for the purpose of facilitating the display of the position of the support system.

[0019] Furthermore, the end of the outer tube furthest from the traction head is connected to an outer tube handle, which is also fitted onto the double-channel inner tube.

[0020] Furthermore, a locking head is connected to the outer tube handle, which is used to lock the state between the dual-channel inner tube and the outer tube. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a front view of the integrated dilatation balloon stent system in an embodiment of this utility model;

[0023] Figure 2 This is a detailed diagram of the outer tube retracting to expose the dual-channel inner tube in an embodiment of this utility model;

[0024] Figure 3 This is an embodiment of the present utility model. Figure 2 Exploded view;

[0025] Figure 4 This is a schematic diagram of the expansion bracket in the expanded state in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the particle bag support in an expanded state in an embodiment of this utility model;

[0027] In the picture:

[0028] Dual-channel inner tube 1, installation section 11, guide section 12, guide wire channel a, balloon channel b;

[0029] Outer tube 2;

[0030] Traction head 3;

[0031] Balloon 4;

[0032] Expansion stent 5;

[0033] Particle bag support 6;

[0034] Damping component 7;

[0035] Inner tube handle 8;

[0036] Injection port 9;

[0037] Angiography point 10;

[0038] Outer tube handle 11;

[0039] Locking head 12. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Example: This example provides the optimal implementation scheme for an integrated dilatational balloon stent system, combined with the attached... Figure 1 ~Attached Figure 5 Detailed explanation.

[0042] Please see the appendix first. Figure 1 ~Attached Figure 2 The support system includes a dual-channel inner tube 1 and an outer tube 2 sleeved outside the dual-channel inner tube 1. The dual-channel inner tube 1 adopts a traditional structure in appearance, consisting of a thinner installation section 11 and a thicker guide section 12. Its internal structure is different from the traditional structure, having two channels. The outer tube 2 still adopts a traditional structure, with one end extending to the middle of the inner tube 1 and the other end extending to the end of the installation section 11, used to close and compress other structures installed on the installation section 11.

[0043] Please continue reading the appendix. Figure 1 ~Attached Figure 2 One end of the dual-channel inner tube 1 is connected to a traction head 3. A balloon 4 and an expansion bracket 5 are sequentially fitted on the dual-channel inner tube 1 from the end closer to the traction head 3 to the end farther away from the traction head 3. The balloon 4 is connected to one of the channels in the dual-channel inner tube 1.

[0044] For details, please see the appendix. Figure 3 The channels in the dual-channel inner tube 1 include a guidewire channel a and a balloon channel b (guidewire channel a and balloon channel b are shown by dashed lines). Guidewire channel a is for passing through the guidewire, and balloon channel b is for connecting to the balloon 4 so that the balloon can be expanded by inflation later.

[0045] Please continue reading the appendix. Figure 2 ~Attached Figure 3 The outer tube 2 is used to seal the balloon 4 and the dilatation stent 5, and to compress the dilatation stent 5. The balloon 4 and the dilatation stent 5 are installed in the installation section 11. The balloon 4 can only be inflated and the dilatation stent 5 released when the outer tube 2 is displaced to the rear side to expose the installation section 11. After the dilatation stent 5 is released, it automatically expands to... Figure 4 The expansion state is shown.

[0046] Please continue reading the appendix. Figure 2 ~Attached Figure 3The balloon 4 is fitted with a particle bag support 6, which is also installed in the installation section 11, wrapping around the balloon 4. The particle bag support 6 can reach the patient's site along with the balloon 4, and automatically expands upon release. Figure 5 The expansion state is shown.

[0047] Please continue reading the appendix. Figure 3 The outer wall of the dual-channel inner tube 1 is also provided with damping components 7 corresponding to the expansion bracket 5 and the particle bag bracket 6 respectively. The damping component 7 is a ring made of rubber or plastic, which is fixedly sleeved on the outer wall of the dual-channel inner tube 1. The expansion bracket 5 and the particle bag bracket 6 correspond to two damping components 7 respectively.

[0048] Please continue reading the appendix. Figure 1 The inner tube 1 of the dual-channel tube is connected to an inner tube handle 8 at one end away from the traction head 3. The other channel of the dual-channel inner tube 1 extends to connect the traction head 3 with the inner tube handle 8, so that the guide wire can pass through the inner tube handle 8, the dual-channel inner tube 1 and the traction head 3 in sequence.

[0049] Please continue reading the appendix. Figure 1 An injection port 9 is formed on the inner tube handle 8. The channel on the dual-channel inner tube 1 that is connected to the balloon 4 is also connected to the injection port 9. The injection port 9 is used to connect a syringe or other instrument or device that can inject gas into the balloon channel b.

[0050] Please continue reading the appendix. Figure 3 Several contrast points 10 are dispersed on the outer wall of the dual-channel inner tube 1. The contrast points 10 are used to facilitate the development of this support system on the monitor.

[0051] Please continue reading the appendix. Figure 1 The outer tube 2 is connected to an outer tube handle 11 at the end away from the traction head 3. The outer tube handle 11 is also sleeved on the double-channel inner tube 1. By holding the outer tube handle 1, the relative position of the double-channel inner tube 1 and the outer tube 2 can be operated, thereby controlling whether the expansion support 5 and the particle bag support 6 are exposed and expanded.

[0052] Please continue reading the appendix. Figure 1 A locking head 12 is connected to the outer tube handle 11. The locking head 12 is connected to the outer tube handle 11 and is used to lock the state between the dual-channel inner tube 1 and the outer tube 2. Specifically, the locking head 12 and the outer tube handle 11 can be threaded together. The inner wall of the locking head 12 can be a conical annular surface. The position of the locking head 12 can be adjusted by rotating it with a screw, so that it can be relatively displaced relative to the dual-channel inner tube 1. Thus, the locking or releasing with the inner tube 1 can be adjusted by the conical annular surface.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An integrated dilatational balloon stent system, characterized in that, It includes a dual-channel inner tube and an outer tube sleeved outside the dual-channel inner tube. One end of the dual-channel inner tube is connected to a traction head. A balloon and an expansion bracket are sequentially sleeved on the dual-channel inner tube from the end closer to the traction head to the end farther away from the traction head. The balloon is connected to one of the channels of the dual-channel inner tube.

2. The integrated dilatational balloon stent system according to claim 1, characterized in that: The balloon is fitted with a particle bag support.

3. The integrated dilatational balloon stent system according to claim 2, characterized in that: The outer wall of the dual-channel inner tube is also provided with damping components corresponding to the expansion bracket and the particle bag bracket, respectively.

4. The integrated dilatational balloon stent system according to any one of claims 1 to 3, characterized in that: The inner tube of the dual-channel tube is connected to an inner tube handle at one end away from the traction head. The other channel of the dual-channel inner tube extends to connect the traction head and the inner tube handle, so that the guide wire can pass through the inner tube handle, the dual-channel inner tube, and the traction head in sequence.

5. The integrated dilatational balloon stent system according to claim 4, characterized in that: An injection port is formed on the inner tube handle, and the channel on the dual-channel inner tube that communicates with the balloon is also connected to the injection port.

6. The integrated dilatational balloon stent system according to any one of claims 1 to 3, characterized in that: Several imaging points are dispersed on the outer wall of the dual-channel inner tube.

7. The integrated dilatational balloon stent system according to any one of claims 1 to 3, characterized in that: The outer tube is connected to an outer tube handle at the end furthest from the traction head, and the outer tube handle is also sleeved on the dual-channel inner tube.

8. The integrated dilatational balloon stent system according to claim 7, characterized in that: A locking head is connected to the outer tube handle, and the locking head is connected to the outer tube handle to lock the state between the dual-channel inner tube and the outer tube.

Images