An inflatable cavity for a self-growing flexible main body film

By designing an inflatable cavity for self-growth flexible body film, the problem that self-growth flexible hysteroscopy in the prior art cannot achieve uniform inflation during inflation, the safety and reliability of surgical operations are achieved, and the inflation efficiency is improved.

CN119235246BActive Publication Date: 2025-05-30HARBIN INST OF TECH
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202411678951.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-05-30
Estimated Expiration
2044-11-22

AI Technical Summary

Technical Problem

The existing self-growth flexible hysteroscopy cannot achieve uniform inflation of the entire device during the inflation process, resulting in safety risks during surgical operations.

Method used

An inflatable cavity for self-growing flexible body films is designed, which includes an inflatable cavity shell, a sealing member and a flexible film locking mechanism, which can effectively control the inflation and exhaust process, and adjust the expansion stiffness through air pressure to ensure surgical safety.

Benefits of technology

The gradual expansion and formation of the flexible film is achieved, ensuring the safety and reliability of surgical operations, while reducing gas leakage and improving inflation efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119235246B_ABST
    Figure CN119235246B_ABST
Patent Text Reader

Abstract

The present invention relates to a storage mechanism, and more particularly to an inflatable cavity for a self-growing flexible main body film. An inflatable cavity for a self-growing flexible main body film includes a self-growing flexible main body film, an inflatable cavity housing, a sealing member, and a flexible film locking mechanism. The self-growing flexible main body film is disposed on the inflatable cavity housing, the inflatable cavity housing is provided with a sealing member, and the flexible film locking mechanism is disposed within the inflatable cavity housing. The flexible film locking mechanism is capable of restricting the growth of the self-growing flexible main body film. This cavity can effectively control the processes of inflation and deflation, and at the same time can control the mechanism for the forward growth and stop of the main body, and can effectively control the gradual expansion and generation of the flexible film.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a storage mechanism, and more particularly to an inflatable cavity for a self-growing flexible main body film. Background Art

[0002] Gynecological diseases have a high incidence rate among women and are increasing year by year. Therefore, the demand for their diagnosis and treatment is constantly increasing. A hysteroscope is a medical device used to observe and treat diseases inside the female uterus. However, the existing rigid hysteroscope has an unreplaceable structure, which is prone to cause physical injuries and infections, and the surgical process is complex. To address these problems, researching self-growing soft hysteroscopes can significantly reduce the harm to patients during the diagnosis and treatment process, which is of great significance.

[0003] Self-growing soft hysteroscope surgical instruments usually have a large volume. Therefore, it is impossible to uniformly inflate the entire device during the inflation process. Therefore, an inflatable cavity for a self-growing flexible main body film is specifically designed to realize the self-growing process of the flexible film. This inflatable cavity can effectively control the inflation and exhaust processes, thereby promoting the gradual expansion and formation of the flexible film, ensuring that it can be safely and effectively applied to the treatment of patients during surgical operations. Summary of the Invention

[0004] To overcome the deficiencies of the prior art, the present invention provides an inflatable cavity for a self-growing flexible main body film. This cavity can effectively control the inflation and exhaust processes. At the same time, it can control the forward growth and stopping mechanism of the self-growing flexible main body film 1, effectively control the gradual expansion and generation of the flexible film, and reasonably adjust the expansion stiffness by controlling the air pressure to ensure the safety and reliability of the surgery. At the same time, the cavity contains a dynamic sealing device, which ensures that the air pressure in the cavity is relatively constant, reduces leakage caused by insufficient sealing in the cavity, and reduces the growth efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] An inflatable cavity for a self-growing flexible main body film, comprising a self-growing flexible main body film, an inflatable cavity housing, a sealing member, and a flexible film locking mechanism. The self-growing flexible main body film is arranged on the inflatable cavity housing. A sealing member is arranged on the inflatable cavity housing, and the flexible film locking mechanism is arranged inside the inflatable cavity housing. The flexible film locking mechanism can limit the growth of the self-growing flexible main body film.

[0007] The self-growing flexible main body film includes a self-growing flexible primary main body film and a self-growing flexible secondary main body film. The self-growing flexible main body film is made of silicone material and has an overall structure in a secondary growth mode. The diameter of the self-growing flexible primary main body film is larger than that of the self-growing flexible secondary main body film. The self-growing flexible primary main body film forms a broad base, and the self-growing flexible secondary main body film presents a variable-diameter structure.

[0008] The inflatable cavity housing includes a compression nut, a top cover, a storage housing, a quick plug, a pressure sensor, and a bottom cover;

[0009] A through hole is machined in the middle of the compression nut; the top cover is a disc-shaped structure, and a machining protrusion is provided on the top cover. The machining protrusion is connected to the self-growing flexible main body film, and the self-growing flexible main body film and the machining protrusion are fixed by an iron hoop. The compression nut is threadedly connected to the machining protrusion, and a through hole is provided at the center of the machining protrusion;

[0010] The storage housing is a cylindrical structure. The top of the storage housing is connected to the top cover by bolts to form a sealed cavity;

[0011] A threaded hole is machined on the side wall of the storage housing, and the quick plug is threadedly connected to the threaded hole. An external air pump is connected to the quick plug;

[0012] The bottom cover is a disc-shaped structure, and the bottom cover is connected to the storage housing by bolts; the pressure sensor is an electronic component, and the pressure sensor is arranged on the inner wall of the storage housing;

[0013] A closed cavity is machined at the bottom of the storage housing and inside the bottom cover.

[0014] The sealing member includes a compression nut sealing filler, a top cover O-ring, a top cover oil seal filler, a bottom cover O-ring, a bottom cover graphite filler, and a bottom cover cotton filler;

[0015] The compression nut seal is an alcohol liquid seal, and the space formed between the compression nut and the top cover is filled with the compression nut sealing filler;

[0016] A groove is machined on the storage housing, and the groove is filled with cotton filler. The filler is infiltrated with oil liquid to form the top cover oil seal filler;

[0017] A groove for setting a sealing ring is machined on the top cover, and further sealing is achieved by pressing the top cover O-ring.

[0018] Add bottom gland graphite packing into the cavity formed between the bottom gland and the storage housing. The cavity is filled with cotton soaked in alcohol to form bottom gland cotton packing. The bottom gland cotton packing is pressed tightly until the self-growing flexible secondary main body film can just pass through the center of the packing to achieve dynamic sealing;

[0019] A pressure groove for setting a sealing ring is machined on the bottom gland, and further sealing is carried out by pressing the O-ring of the bottom gland.

[0020] The flexible film locking mechanism includes a DC motor, a motor wire, a support plate, a spring, a moving pressure plate, a rubber pressing component, a smooth rod, and a motor wire shaft;

[0021] The flexible film locking mechanism is a symmetric structure. The motor wire shaft is connected to the DC brushless motor. The other end of the motor wire shaft is connected with a motor wire. The DC motor is connected to the motor base on the support plate. The support plate is fixed on the top gland. Two smooth rods are symmetrically fixed between the two support plates; A spring is connected to the support plate, and the other end of the spring is connected to the moving pressure plate. The other end of the motor wire is connected to the moving pressure plate, and the movement of the moving pressure plate is driven by the shortening of the motor wire.

[0022] In the relaxed state, the motor wire shrinks to the shortest. At this time, the moving pressure plate is at the topmost position, and the spring is in a contracted state; In the clamped state, the spring extends freely, firmly pressing the moving pressure plates together. Under the action of the rubber pressing component, the self-growing flexible main body film is locked, thereby restricting the growth of the self-growing flexible main body film.

[0023] A rubber pressing component is arranged on the top of the moving pressure plate, which is responsible for pressing against the self-growing flexible main body film and locking the self-growing flexible main body film by friction.

[0024] The compression nut is processed from aluminum; The DC motor is a DC brushless motor.

[0025] A usage method of an inflatable cavity for a self-growing flexible main body film, the method includes the following steps:

[0026] S1: In the initial state, the self-growing flexible primary main body film is stored in the storage housing of the inflatable cavity housing, and the self-growing flexible secondary main body film is outside the inflatable cavity housing;

[0027] S2: Inflate the inside of the inflatable cavity housing until a certain air pressure is generated inside the inflatable cavity housing, and the self-growing flexible primary main body film expands;

[0028] S3: The flexible film locking mechanism inside the inflatable cavity housing controls the growth or stop of the self-growing flexible primary main body film, so that the self-growing flexible primary main body film grows controllably.

[0029] The beneficial effects of an inflatable cavity for a self-growing flexible main body film in the present invention are as follows:

[0030] Its structure is simple and convenient for assembly. It is mainly processed from aluminum alloy materials, featuring portability and being easy to carry. The interior of the cavity is precisely sealed, effectively reducing gas leakage problems and improving inflation efficiency. A pressure sensor is provided inside the cavity to monitor pressure changes in real time, thereby preventing damage to the self-growing flexible main body film, ensuring precise control of its stiffness, and enabling smooth adjustment of the film growth process. At the same time, the cavity is equipped with a flexible film locking mechanism, which can effectively control the expansion and forming process of the self-growing flexible main body film, thus ensuring the safety and reliability of the operation. Description of the Drawings

[0031] The following further elaborates on the present invention in detail in conjunction with the drawings and specific implementation methods.

[0032] Att Figure 1 is a schematic diagram of an inflatable cavity for a self-growing flexible main body film of the present invention;

[0033] Att Figure 2 is a schematic diagram of a self-growing flexible main body film of the present invention;

[0034] Att Figure 3 is a schematic cross-sectional view of an inflatable cavity for a self-growing flexible main body film of the present invention;

[0035] Att Figure 4 is a schematic diagram of an inflatable cavity and a sealing mechanism of the present invention;

[0036] Att Figure 5 is a schematic diagram of the locking state of the locking mechanism of the present invention;

[0037] Att Figure 6 is a schematic diagram of the free state of the locking mechanism of the present invention;

[0038] Icons: Self-growing flexible main body film 1; Self-growing flexible primary main body film 11; Self-growing flexible secondary main body film 12;

[0039] Inflatable cavity housing 2; Compression nut 21; Top cover 22; Storage housing 23; Quick plug 24; Pressure sensor 25; Bottom cover 26;

[0040] Sealing member 3; Compression nut sealing filler 31; Top cover O-ring 32; Top cover oil seal filler 33; Bottom cover O-ring 34; Bottom cover graphite filler 35; Bottom cover cotton filler 36;

[0041] Flexible film locking mechanism 4; DC motor 41; Motor wire shaft 48; Motor wire 42; Support plate 43; Spring 44; Movable pressure plate 45; Rubber pressing component 46; Smooth rod 47. Detailed implementation mode

[0042] As Figure 1-6 shown, an inflatable cavity for a self-growing flexible main body film includes a self-growing flexible main body film 1, an inflatable cavity housing 2, a sealing member 3, and a flexible film locking mechanism 4. The self-growing flexible main body film 1 is disposed on the inflatable cavity housing 2. A sealing member 3 is provided on the inflatable cavity housing 2. The flexible film locking mechanism 4 is disposed inside the inflatable cavity housing 2, and the flexible film locking mechanism 4 can restrict the growth of the self-growing flexible main body film 1.

[0043] The self-growing flexible main body film 1 includes a self-growing flexible primary main body film 11 and a self-growing flexible secondary main body film 12. The self-growing flexible main body film 1 is made of silica gel material, and the overall structure is in a two-stage growth mode. The diameter of the self-growing flexible primary main body film 11 is larger than that of the self-growing flexible secondary main body film 12. The self-growing flexible primary main body film 11 forms a broad base, and the self-growing flexible secondary main body film 12 presents a variable-diameter structure.

[0044] The self-growing flexible primary main body film 11 has a larger diameter, forming a broad base to provide stable support. The design of this part can increase the strength of the overall film and provide necessary space for subsequent growth;

[0045] The self-growing flexible secondary main body film 12 has a smaller diameter and presents a variable-diameter structure. Such a design not only helps to achieve more flexible shape changes but also better adapts to the external environment during air pressure changes, enhancing the functionality of the film. As Figure 2 shown;

[0046] The inflatable cavity housing 2 includes a compression nut 21, a top cover 22, a storage housing 23, a quick plug 24, a pressure sensor 25, and a bottom cover 26;

[0047] A through hole is machined in the middle of the compression nut 21; The top cover 22 is in a disc shape, and there are machining protrusions on the top cover 22. The machining protrusions are connected to the self-growing flexible main body film 1. The self-growing flexible main body film 1 and the machining protrusions are fixed by an iron hoop. The compression nut 21 is threadedly connected to the machining protrusions, and a through hole is provided at the center of the machining protrusions;

[0048] The storage housing 23 is in a cylindrical shape. The top of the storage housing 23 is connected and matched with the top cover 22 by bolts to form a sealed cavity;

[0049] The side wall of the storage housing 23 is machined with threaded holes, and the quick plug 24 is threadedly connected to the threaded holes. An external air pump is connected to the quick plug 24; the cavity is inflated by connecting the external air pump to the quick plug 24.

[0050] The bottom gland 26 has a disc-shaped structure. The bottom gland 26 is bolted to the storage housing 23. A large closed cavity is machined inside the bottom of the storage housing 23 and inside the bottom gland 26 to facilitate the dynamic sealing of the packing. The air pressure sensor 25 is an electronic component. The air pressure sensor 25 is arranged on the inner wall of the storage housing 23 and can sense the air pressure and temperature inside the cavity, as Figure 4 shown.

[0051] A closed cavity is machined inside the bottom of the storage housing 23 and inside the bottom gland 26.

[0052] The sealing member 3 includes a compression nut sealing packing 31, a top gland O-ring 32, a top gland oil seal packing 33, a bottom gland O-ring 34, a bottom gland graphite packing 35, and a bottom gland cotton packing 36;

[0053] The compression nut 21 is sealed with an alcohol solution to prevent the shedding of the self-growing flexible film body and the leakage of gas. The space formed between the compression nut 21 and the top gland 22 is filled with the compression nut sealing packing 31;

[0054] A groove is machined on the storage housing 23. The groove is filled with cotton packing, and the packing is infiltrated with oil to form the top gland oil seal packing 33 to prevent gas from leaking out of the cavity;

[0055] The top gland 22 is machined with a groove for setting the sealing ring, and further sealing is achieved by pressing the top gland O-ring 32, as Figure 4 shown.

[0056] The bottom gland graphite packing 35 is added to the cavity formed between the bottom gland 26 and the storage housing 23 to prevent gas from leaking to the side of the cavity. The cavity is filled with cotton soaked with alcohol to form the bottom gland cotton packing 36. The bottom gland cotton packing 36 is pressed so that the self-growing flexible secondary body film 12 can just pass through the center of the packing to achieve dynamic sealing. Good airtightness can be ensured when the self-growing flexible secondary body film 12 passes through, and at the same time, the main body is disinfected to reduce the risk of infection;

[0057] The bottom gland 26 is machined with a groove for setting the sealing ring, and further sealing is achieved by pressing the bottom gland O-ring 34, as Figure 4 shown.

[0058] The flexible film locking mechanism 4 includes a DC motor 41, a motor wire 42, a support plate 43, a spring 44, a moving pressure plate 45, a rubber pressing member 46, a smooth rod 47, and a motor wire shaft 48;

[0059] The flexible film locking mechanism 4 is a symmetric structure. The motor wire shaft 48 is connected to the DC brushless motor 41. The other end of the motor wire shaft 48 is connected to a motor wire 42. The DC motor 42 is connected to a motor base on the support plate 43. The support plate 43 is fixed on the top cover 22. Two smooth rods 47 are symmetrically fixed between the two support plates 43. A spring 44 is connected to the support plate 43. The other end of the spring 44 is connected to the moving pressure plate 45. The other end of the motor wire 42 is connected to the moving pressure plate 45. The movement of the moving pressure plate 45 is driven by the shortening of the motor wire 42, as Figure 5 shown.

[0060] In the relaxed state, the motor wire 42 is retracted to the shortest. At this time, the moving pressure plate 45 is at the topmost position, and the spring 44 is in a contracted state. In the clamped state, the spring 44 extends freely, firmly pressing the moving pressure plates 45 together. Under the action of the rubber pressing member 46, the self-growing flexible main body film 1 is locked, thereby restricting the growth of the self-growing flexible main body film 1, as Figure 5 shown.

[0061] In the initial state, the self-growing flexible main body film 1 is stored in the inflatable cavity housing 2. When the inflatable cavity housing 2 is inflated, the self-growing flexible main body film 1 expands and grows. When the flexible film locking mechanism 4 is closed, the self-growing flexible main body film 1 does not grow. When the flexible film locking mechanism 4 is open, the self-growing flexible main body film 1 can grow normally outward.

[0062] A rubber pressing member is provided at the top of the moving pressure plate 45, which is responsible for pressing against the self-growing flexible main body film 1 and locking the self-growing flexible main body film 1 by friction.

[0063] The compression nut 21 is machined from aluminum, with a through hole in the middle and a recessed groove machined for easy filling. The DC motor 41 is a DC brushless motor.

[0064] A method for using an inflatable cavity for a self-growing flexible main body film, the method comprising the following steps:

[0065] S1: In the initial state, the self-growing flexible primary main body film 11 is stored in the storage housing 23 of the inflatable cavity housing 2, and the self-growing flexible secondary main body film 12 is outside the inflatable cavity housing 2;

[0066] S2: Inflate the inside of the inflatable cavity housing 2 until a certain air pressure is generated inside the inflatable cavity housing 2, and the self-growing flexible primary main body film 11 expands;

[0067] S3: The flexible film locking mechanism 4 inside the inflatable cavity housing 2 controls the growth or stop of the self-growing flexible primary body film 11, enabling the controllable growth of the self-growing flexible primary body film 11.

Claims

1. An inflatable cavity for a self-growing flexible main body film, comprising a self-growing flexible main body film (1), an inflatable cavity shell (2), a sealing member (3), and a flexible film locking mechanism (4), characterized in that: The self-growing flexible main body film (1) is arranged on the inflatable cavity shell (2), a sealing component (3) is arranged on the inflatable cavity shell (2), and a flexible film locking mechanism (4) is arranged in the inflatable cavity shell (2), and the flexible film locking mechanism (4) can limit the growth of the self-growing flexible main body film (1); The flexible film locking mechanism (4) comprises a DC motor (41), a motor cable (42), a support plate (43), a spring (44), a movable pressing plate (45), a rubber pressing component (46), a polished rod (47) and a motor cable shaft (48); The flexible film locking mechanism (4) is a symmetrical structure, the motor pull wire spool (48) is connected to the DC brushless motor (41), the other end of the motor pull wire spool (48) is connected to the motor pull wire (42), the DC motor (42) is connected to the motor seat on the support plate (43), the support plate (43) is fixed on the top pressure cover (22) of the inflation cavity shell (2), and the two light rods (47) are symmetrically fixed between the two support plates (43); the support plate (43) is connected to a spring (44), the other end of the spring (44) is connected to the movable pressure plate (45), the other end of the motor pull wire (42) is connected to the movable pressure plate (45), and the movement of the movable pressure plate (45) is driven by the shortening of the motor pull wire (42); The self-growing flexible main body film (1) comprises a self-growing flexible primary main body film (11) and a self-growing flexible secondary main body film (12); The self-growing flexible primary main film (11) is arranged inside the inflatable cavity shell (2), the self-growing flexible secondary main film (12) is arranged outside the inflatable cavity shell (2), and the self-growing flexible primary main film (11) is arranged between the movable pressure plates (45); by driving the movable pressure plates (45) to move, the self-growing flexible primary main film (11) can be moved, thereby realizing the growth regulation and stiffness regulation control of the self-growing flexible main film.

2. The inflatable cavity for self-growing a flexible main body film according to claim 1, characterized in that: The self-growing flexible main body film (1) is made of silica gel material, and the overall structure presents a secondary growth mode. The diameter of the self-growing flexible primary main body film (11) is larger than that of the self-growing flexible secondary main body film (12). The self-growing flexible primary main body film (11) forms a wide base, and the self-growing flexible secondary main body film (12) presents a variable diameter structure.

3. The inflatable cavity for self-growing a flexible main body film according to claim 2, characterized in that: The air-filled cavity housing (2) comprises a compression nut (21), a storage housing (23), a quick plug (24), an air pressure sensor (25) and a bottom gland (26); The clamping nut (21) is processed with a through hole in the middle; the top pressure cover (22) is a disc-shaped structure, and a processing protrusion is provided on the top pressure cover (22), and the processing protrusion is connected to the self-growing flexible main body film (1), and the self-growing flexible main body film (1) and the processing protrusion are fixed by an iron hoop, and the clamping nut (21) is connected to the processing protrusion by a thread, and a through hole is provided in the center of the processing protrusion; The storage shell (23) is a cylindrical structure, and the top of the storage shell (23) is connected with the top gland (22) by bolts to form a closed cavity; A threaded hole is processed on the side wall of the storage shell (23), and the quick plug (24) is connected to the threaded hole through a thread, and the quick plug (24) is connected to an external air pump; The bottom pressure cover (26) is a disc-shaped structure, and the bottom pressure cover (26) is connected to the storage shell (23) by bolts; the air pressure sensor (25) is an electronic component, and the air pressure sensor (25) is arranged on the inner wall of the storage shell (23); A closed cavity is machined at the bottom of the storage housing (23) and inside the bottom pressure cover (26).

4. The inflatable cavity for self-growing a flexible main body film according to claim 3, characterized in that: The sealing component (3) comprises a compression nut sealing filler (31), a top gland O-ring (32), a top gland oil seal filler (33), a bottom gland O-ring (34), a bottom gland graphite filler (35) and a bottom gland cotton filler (36); The sealing of the clamping nut (21) is an alcohol liquid seal, and the space formed between the clamping nut (21) and the top gland (22) is filled with a clamping nut sealing filler (31); A circle of grooves is processed on the storage shell (23), and the grooves are filled with cotton stuffing, and the stuffing is infiltrated with oil to form a top gland oil seal stuffing (33); The top gland (22) is processed with a groove for arranging a sealing ring, and further sealing is achieved by pressing the top gland O-ring (32).

5. The inflatable cavity for self-growing a flexible main body film according to claim 4, characterized in that: A bottom gland graphite filler (35) is added into the cavity formed between the bottom gland (26) and the storage shell (23), and cotton soaked in alcohol is filled into the cavity to form a bottom gland cotton filler (36). The bottom gland cotton filler (36) is pressed tightly until the self-growing flexible secondary main body film (12) can just pass through the center of the filler, thereby achieving dynamic sealing; The bottom gland (26) is processed with a pressing groove for arranging a sealing ring, and further sealing is achieved by pressing the bottom gland O-ring (34).

6. The inflatable cavity for self-growing a flexible main body film according to claim 5, characterized in that: In the relaxed state, the motor pull wire (42) is shortened to the shortest, at which time the movable pressing plate (45) is at the top, and the spring (44) is in a contracted state; In the clamped state, the spring (44) freely extends, firmly pressing the movable pressing plate (45) together, and through the action of the rubber pressing component (46), the self-growing flexible main body film (1) is locked, thereby limiting the growth of the self-growing flexible main body film (1).

7. The inflatable cavity for self-growing a flexible main body film according to claim 6, characterized in that: The top of the movable pressing plate (45) is provided with a rubber pressing component, which is responsible for pressing the self-growing flexible main body film (1) and locking the self-growing flexible main body film (1) through friction.

8. The inflatable cavity for self-growing a flexible main body film according to claim 7, characterized in that: The clamping nut (21) is made of aluminum; and the DC motor (41) is a brushless DC motor.

9. The method for using the inflatable cavity for self-growing flexible main body film according to claim 8, characterized in that: The method comprises the following steps: S1: Initial state, the self-grown flexible primary main body film (11) is stored in the storage shell (23) of the inflatable cavity shell (2), and the self-grown flexible secondary main body film (12) is outside the inflatable cavity shell (2); S2: Inflate the interior of the inflatable cavity shell (2) until a certain air pressure is generated inside the inflatable cavity shell (2), causing the self-growing flexible primary main body film (11) to expand; S3: The flexible film locking mechanism (4) inside the inflatable cavity shell (2) controls the growth or stop of the self-growing flexible primary main body film (11), so that the self-growing flexible primary main body film (11) can grow in a controllable manner.

Citation Information

Patent Citations

  • Variable-rigidity soft body driver, soft body arm and soft body platform based on blocking principle

    CN107756385A

  • Flexible robot consisting of hollow glass microspheres

    CN108381548A