Bronchial end-valve loader

Abstract

The utility model relates to medical instrument technical field, concretely relates to a kind of bronchus inner valve loader.The loader includes top hat (1), loading sleeve (2), ring (3) and loading push rod (5), the ring (3) is composed of upper ring (32) and lower ring (33), the lower ring (33) is integrally connected with the loading sleeve (2), the upper ring (32) is fixedly connected with lower ring (33) by pin (4), the upper ring (32) rotates with pin (4) as axis to realize the opening or closure of ring (3).The utility model can make valve fold more evenly, and folding success rate is high, and will not cause damage to valve.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an intrabronchial valve loader. Background Technology

[0002] Precise placement of endobronchial valves is crucial for treatment effectiveness. The valve needs to be accurately positioned in the target bronchus; improper placement can lead to poor treatment results or even complications. Furthermore, valves come in various sizes and models, requiring selection based on the patient's specific lung anatomy and condition. The bronchial space is confined and complex, making the safe and accurate delivery of a suitable valve to its designated location a critical challenge.

[0003] The endobronchial valve loader, as a key tool for precise valve delivery, is of great significance in its development. It needs to possess excellent maneuverability to flexibly deliver the valve to the target bronchus under bronchoscopic guidance; simultaneously, it must ensure the stability of the valve during loading and release, preventing premature dislodgement or displacement; and it must be adaptable to the bronchial anatomy of different patients, possessing a certain degree of versatility and adjustability. The advent of the loader provides an important guarantee for the effective implementation of endobronchial valve technology and promotes the development of minimally invasive lung volume reduction therapy.

[0004] CN220898889U discloses an intrabronchial valve delivery device, specifically for delivering the intrabronchial valve disclosed in CN115531038A to a target location. CN117281653A discloses a method for loading a bracket-shaped intrabronchial valve into a delivery device, but its intrabronchial valve loader cannot load valves made entirely of silicone.

[0005] In response to the above, it is necessary to develop a new device that can both solve the problem of loading silicone bronchial valves into the bronchus and deliver valves, while also effectively protecting the valves from damage during loading. Utility Model Content

[0006] In view of the above-mentioned technical status, this utility model aims to provide an intrabronchial valve loader. The loader includes a top cap, a loading sleeve, a closing ring, and a loading push rod. The closing ring consists of an upper closing ring and a lower closing ring. The lower closing ring is integrally connected to the loading sleeve. One side of the upper closing ring is fixedly connected to one side of the lower closing ring by a pin. The upper closing ring rotates around the pin to realize the opening or closing of the closing ring.

[0007] In this utility model, as one of the embodiments, the upper closing ring can rotate 180° around the pin and close with the lower closing ring, so that the loading sleeve can complete the opening and closing action.

[0008] In this utility model, as one embodiment, the upper fitting ring has a through hole on one side and the lower fitting ring has a through hole on one side. The pin passes through the through hole on the upper fitting ring and the through hole on the lower fitting ring, and is fixedly connected at the end face where the pin connects to the lower fitting ring. As one embodiment, the fixed connection includes, but is not limited to, adhesive connection, riveting connection or welding connection.

[0009] In this invention, as one of the implementation schemes, the closed loop forms a channel for compressing and folding the bronchial valve.

[0010] In this utility model, as one embodiment, the top cap is a cap-shaped structure with a notch, the notch extending inward to the center of the top cap, and the notch is configured to be the size suitable for the passage of the conveying conduit of the conveying device; the inner wall of the top cap is provided with threads.

[0011] In this utility model, as one embodiment, the loading sleeve is a hollow cylindrical structure with threads on its front outer wall, which are connected to the top cap. The loading sleeve is integrally connected to the lower closing ring, and the closing ring controls the loading sleeve to screw into the top cap. Preferably, the cavity diameter of the loading sleeve gradually decreases from one end to the other, wherein the cavity diameter of the loading sleeve at the end in contact with the delivery conduit is equal to or less than the inner diameter of the compression cylinder at the head end of the delivery conduit.

[0012] In this utility model, as one of the embodiments, the top cap and the loading sleeve are connected by a threaded connection or a snap-fit ​​connection, preferably by a threaded connection.

[0013] In this utility model, as one of the implementation schemes, the loading push rod is located in the middle channel between the loading sleeve and the closing ring.

[0014] In this invention, as one embodiment, the material of the loader can be metal or polymer, preferably cobalt-chromium alloy, ABS, PC or Pebax.

[0015] The operation method of this utility model bronchial valve loader includes:

[0016] 1) Open the bronchial valve loader by rotating the pin, place the bronchial valve into the channel at the open end of the bronchial valve loader, close the upper and lower closure rings to close the closure rings, and place the valve inside the loader for folding.

[0017] 2) Unscrew the top cap, install the compression cylinder of the conveying device into the loading sleeve of the loader, install the top cap, and use the threaded connection to compact the compression cylinder and the loading sleeve;

[0018] 3) Insert the loading push rod to further compress the folded valve, allowing it to be loaded into the compression cylinder of the conveying device along the internal channel of the loader, thus completing the loading of the valve into the bronchus. 。

[0019] Beneficial effects

[0020] 1. The opening and closing design of the loading sleeve and the closing ring in this utility model can fold the valve to reduce its diameter;

[0021] 2. The variable diameter channel inside the loading sleeve in this utility model can compress the valve inside the bronchus to a specified diameter;

[0022] 3. The notch and threaded connection design of the top cap allows the delivery conduit to pass through and compact the compression cylinder and loading sleeve at its head end;

[0023] 4. The loading sleeve of this utility model does not have internal ribs, which reduces the pushing force during the pushing process and avoids damage to the valve by the internal ribs during the pushing process;

[0024] 5. The valve folds more evenly, has a high success rate, and will not damage the valve. Attached Figure Description

[0025] Figure 1 : Schematic diagram of the bronchial valve structure installed in this utility model;

[0026] Figure 2 Schematic diagram of the bronchial valve delivery system;

[0027] Figure 3 : A schematic diagram of the bronchial valve loader of this utility model with the ring closed and opened;

[0028] Figure 4 : Schematic diagram of the bronchial valve folding inside the loader;

[0029] Figure 5 Schematic diagram of the compression cylinder and loading sleeve compaction of the bronchial valve delivery device;

[0030] Figure 6 : Schematic diagram of the notch and thread design of the top cap of this utility model;

[0031] Figure 7 : Schematic diagram of the bronchial valve loader structure of this utility model;

[0032] Figure 8 : Schematic diagram of the upper closing ring through hole of the bronchial valve loader of this utility model;

[0033] Figure 9 : Schematic diagram of the lower closing ring through hole of the bronchial valve loader of this utility model;

[0034] Figure 10 : Schematic diagram of the fixing of the lower closing ring and pin of the bronchial valve loader of this utility model.

[0035] Explanation of reference numerals in the attached drawings: Top cap 1; Notch 11; Loading sleeve 2; Intermediate channel 21; Closing ring 3; Channel 31; Upper closing ring 32; Lower closing ring 33; Through hole 34; Through hole 35; Pin 4; Loading push rod 5; Valve 6; Compressed valve 61; Conveying conduit of the conveying device 7; Compression cylinder of the conveying device 40. Detailed Implementation

[0036] The following embodiments are used to further illustrate the present invention, but do not limit the effective scope of the present invention in any way.

[0037] Example 1:

[0038] In this utility model, as one of the implementation schemes, as shown in the appendix... Figure 7 As shown, the bronchial valve loader in this embodiment is provided with a top cap 1, a loading sleeve 2, a closing ring 3, a pin 4, and a loading push rod 5. The loading sleeve does not have internal ribs.

[0039] like Figure 3 As shown, the closing ring 3 consists of an upper closing ring 32 and a lower closing ring 33. The lower closing ring 33 is integrally connected to the loading sleeve 2. One side of the upper closing ring 32 is fixedly connected to one side of the lower closing ring 33 by a pin 4. The fixed connection means that the upper closing ring 32 rotates around the pin 4 as an axis, thereby realizing the opening or closing of the closing ring 3.

[0040] In this utility model, as one of the implementation schemes, such as Figure 3 , 8 As shown in Figure 9, the upper fitting ring 32 has a through hole 34 on one side, and the lower fitting ring 33 has a through hole 35 on one side. The pin 4 passes through the through holes on the upper fitting ring 32 and the lower fitting ring 33, and is fixedly connected at the end face where the pin 4 connects to the lower fitting ring 33. Figure 10 As shown; fixing methods include adhesive connection, riveting connection or welding connection.

[0041] The term "shaft" should be interpreted broadly. Anything that rotates along its axis can be considered a shaft. For example, in practice, a method without through holes 34 and pins 4 can be used, as long as it is ensured that the upper and lower mating rings 32 can rotate around the shaft.

[0042] In this utility model, as one of the implementation schemes, such as Figure 3 As shown, when the upper closing ring 32 and the lower closing ring 33 are closed, a channel 31 is formed. The channel 31 is used to accommodate the bronchial valve, and the valve is compressed and folded precisely during the process of the upper closing ring 32 and the lower closing ring 33 closing.

[0043] In this utility model, as one of the embodiments, such as Figure 6 As shown, when assembling the loader, first fix the loading sleeve 2 and the connecting ring 3 with the pin 4. The connecting ring 3 can rotate around the pin 4 to complete the opening and closing action with the loading sleeve 2. Figure 3 Then, the top cap 1 is connected to the loading sleeve 2 by threads, and finally the loading push rod 5 is installed into the middle channel between the loading sleeve 2 and the closing ring 3 to complete the assembly.

[0044] In this utility model, as one embodiment, the utility model includes, but is not limited to, the following: Figure 1 The bronchial valve shown is loaded into... Figure 2 The bronchial valve delivery device shown is made entirely of silicone and is approximately cylindrical.

[0045] In this utility model, as one of the embodiments, such as Figure 3 , Figure 4 As shown, the loading sleeve 2 is a hollow cylindrical structure with threads on its front outer wall, which is connected to the top cap 1. The loading sleeve 2 is integrally connected to the lower closing ring 33. Preferably, the cavity diameter of the loading sleeve gradually decreases from one end to the other, wherein the cavity diameter of the loading sleeve at the end in contact with the delivery conduit is equal to or less than the inner diameter of the compression cylinder at the head end of the delivery conduit.

[0046] Therefore, to install the bronchial valve into a bronchial delivery device of the same specification, firstly, the closing ring 3 of the bronchial valve loader should be opened by rotating the pin 4, the bronchial valve should be placed into the open end of the bronchial valve loader, and then the closing ring 3 should be closed to fold the valve inside the loader.

[0047] In this utility model, as one of the embodiments, such as Figure 5 As shown, unscrew the top cap 1, install the compression cylinder 40 of the conveying device into the loading sleeve 2 of the loader, and then install the top cap 1 to compact the compression cylinder and loading sleeve by means of threaded connection;

[0048] Finally, insert the loading push rod 5 to further compress the folded valve, so that the valve is loaded into the compression cylinder 40 of the conveying device along the channel inside the loader, thus completing the loading of the valve in the bronchus.

[0049] The feasibility of this invention has been demonstrated through numerous in vitro experiments, and its operability has been verified through complete animal experiments. Furthermore, multiple clinical trials involving endobronchial valves have also validated the feasibility of this technology.

Claims

1. A bronchial valve loader, characterized in that, The loader includes a top cap (1), a loading sleeve (2), a closing ring (3) and a loading push rod (5). The closing ring (3) consists of an upper closing ring (32) and a lower closing ring (33). The lower closing ring (33) is integrally connected to the loading sleeve (2). One side of the upper closing ring (32) is fixedly connected to one side of the lower closing ring (33) by a pin (4). The upper closing ring (32) rotates around the pin (4) to open or close the closing ring (3).

2. The bronchial valve loader according to claim 1, characterized in that, The upper fitting ring (32) has a through hole (34) on one side and the lower fitting ring (33) has a through hole (35) on one side. The pin (4) passes through the through hole (34) on one side of the upper fitting ring (32) and the through hole (35) on one side of the lower fitting ring (33), and is fixedly connected at the end face where the pin (4) connects with the lower fitting ring (33).

3. The bronchial valve loader according to claim 1, characterized in that, The fixed connection includes adhesive connection, riveting connection or welding connection.

4. The bronchial valve loader according to claim 1, characterized in that, When the closed loop (3) is closed, it forms a channel (31) for compressing and folding the bronchial valve.

5. The bronchial valve loader according to claim 1, characterized in that, The top cap (1) is a cap-shaped structure with a notch (11) extending inward to the center of the top cap (1). The notch (11) is set to a size suitable for the passage of the conveying conduit (7) of the conveying device. The inner wall of the top cap (1) is provided with threads.

6. The bronchial valve loader according to claim 1, characterized in that, The loading sleeve (2) is a hollow cylindrical structure with a threaded outer wall at its front end, which is connected to the top cap (1). The loading sleeve (2) is integrally connected to the lower closing ring (33), and the closing ring (3) controls the loading sleeve to screw into the top cap (1).

7. The bronchial valve loader according to claim 6, characterized in that, The cavity diameter of the loading sleeve (2) gradually decreases from one end to the other, wherein the cavity diameter of the loading sleeve (2) at the end in contact with the delivery conduit is equal to or less than the inner diameter of the compression cylinder (40) at the head end of the delivery conduit (7).

8. The bronchial valve loader according to claim 1, characterized in that, The top cap (1) and the loading sleeve (2) are connected by a thread or a snap-fit ​​connection.

9. The bronchial valve loader according to claim 8, characterized in that, The top cap (1) is connected to the loading sleeve (2) by threads.

10. The endobronchial valve loader according to claim 1, characterized in that, The loading push rod (5) is located in the middle channel (21) between the loading sleeve (2) and the closing ring (3).

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