Capsule System

Abstract

A capsule system includes a capsule and an anchoring component connected to the capsule. The anchoring component includes an anchor and a pressure relief structure. The anchor has a collapsible and expandable accommodation cavity. The capsule has a pressure relief hole communicating with the accommodation cavity. The pressure relief structure selectively opens or blocks the pressure relief hole. The pressure relief structure includes a plugging member cooperating with the pressure relief hole and a deformation member connected to the plugging member. The plugging member moves away from the pressure relief hole driven by the heat-induced deformation force of the deformation member; the pressure relief structure uses the deformation force generated by the deformation member when heated to slowly remove the plugging member on the pressure relief hole, so that the high-pressure substance in the anchor is slowly released through the pressure relief hole, avoiding impact on the internal organs of the human body and eliminating potential safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a capsule system. Background Art

[0002] Anchoring of the capsule system refers to limiting the capsule system to a certain interval or position in the digestive tract or other organs to prevent or delay the movement of the capsule with the peristalsis of the digestive tract, which has many applications in the prior art.

[0003] At present, in order to release the anchoring, the existing anchoring capsule needs to use a pressure relief structure to relieve the pressure of the anchoring member. The existing pressure relief structure adopts the method of directly removing the sealing member on the pressure relief hole to release the high-pressure substance in the anchoring member. This causes the high-pressure substance in the anchoring member to directly pour out through the pressure relief hole, causing impact on the internal organs of the human body, posing a safety hazard. Summary of the invention

[0004] The object of the present invention is to provide a capsule system which reduces the release speed of a pressure relief hole.

[0005] To achieve one of the above-mentioned objects of the invention, one embodiment of the present invention provides a capsule system, including a capsule and an anchoring assembly connected to the capsule, the anchoring assembly including an anchoring member and a pressure relief structure, the anchoring member having a shrinkable and expandable accommodating cavity, the capsule having a pressure relief hole connected to the accommodating cavity, the pressure relief structure being able to selectively open or block the pressure relief hole, the pressure relief structure including a sealing member cooperating with the pressure relief hole and a deformable member connected to the sealing member, the sealing member moving away from the pressure relief hole based on the thermal deformation force of the deformable member.

[0006] As a further improvement of an embodiment of the present invention, the deformable member has a fixed end fixed in the capsule and a free end extending away from the fixed end, and the blocking member is fixed to the free end of the deformable member.

[0007] As a further improvement of one embodiment of the present invention, the pressure relief structure includes a transmission member connecting the deformation member and the blocking member, the transmission member is rotatably arranged in the capsule, and the distance from the blocking member to the rotation axis of the transmission member is greater than the distance from the connection end of the deformation member and the transmission member to the rotation axis of the transmission member.

[0008] As a further improvement of one embodiment of the present invention, the transmission member has a rotating seat, a first arm connecting the rotating seat and the deformation member, and a second arm connecting the rotating seat and the blocking member. The pressure relief structure also includes an elastic member fixed in the capsule and abutting against the second arm. The elastic member abuts against the side of the second arm away from the blocking member so that after the deformation member recovers, the blocking member is driven to move toward the pressure relief hole.

[0009] As a further improvement of an embodiment of the present invention, the deformation member is connected to one end of the first arm away from the rotating seat, the blocking member is arranged at one end of the second arm away from the rotating seat, and the length of the second arm is 2-4 times that of the first arm.

[0010] As a further improvement of an embodiment of the present invention, the deformation member has a first end connected to the transmission member and a second end connected to the capsule. The pressure relief structure further includes at least one abutting member abutting against the deformation member, and the abutting member is connected to the capsule and is spaced from the first end and the second end.

[0011] As a further improvement of an embodiment of the present invention, the first end and the second end are on the same side of the abutting member. The pressure relief structure further includes at least one guiding member abutting against the deformation member, and the guiding member is connected to the capsule and is located outside the abutting member to reduce the length of the deformation member abutting against the abutting member.

[0012] As a further improvement of an embodiment of the present invention, the pressure relief structure further includes a heating member arranged on the deformation member, and the deformation member is made of a double thermal expansion coefficient metal material or a shape memory alloy material.

[0013] As a further improvement of an embodiment of the present invention, the capsule includes a housing connected to the anchoring member, a partition arranged in the housing and connected to the pressure relief structure, and a valve body connected to the housing and forming a pressure relief hole. A pressure relief guide hole communicating the accommodation cavity with the pressure relief hole is arranged on the housing, and the central axis of the pressure relief hole and the central axis of the pressure relief guide hole are arranged at a certain angle.

[0014] As a further improvement of an embodiment of the present invention, the housing has a first housing for accommodating the pressure relief structure, a first installation cavity formed between the first housing and the partition, and a through hole arranged on the first housing and communicating the first installation cavity with the outside of the housing. The pressure relief structure and the valve body are both arranged in the first installation cavity.

[0015] As a further improvement of an embodiment of the present invention, the anchoring assembly further includes a pressure boosting structure arranged in the first installation cavity, and the capsule further includes a waterproof and breathable membrane fixed on the first housing and closing the through hole.

[0016] As a further improvement of an embodiment of the present invention, the housing further has a second housing connected to the first housing and located on the side of the partition away from the pressure relief structure, a second installation cavity formed between the second housing and the partition. The capsule further includes a camera assembly arranged in the second installation cavity. The anchoring member is connected to the first housing and is located at one end of the first housing away from the second housing. The housing has at least two through holes, and the at least two through holes are circumferentially and uniformly arranged around the central axis of the housing.

[0017] Compared with the prior art, in the pressure relief structure of the embodiments of the present invention, the deformation force generated by the deformation part when heated is utilized to slowly remove the plugging part on the pressure relief hole, so that the high-pressure substance in the anchoring part is slowly released through the pressure relief hole, avoiding impact on the internal organs of the human body and eliminating potential safety hazards. Description of the Drawings

[0018] Figure 1 is a cross-sectional view taken along the axial direction of the capsule system in a preferred embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of the capsule system placed in the stomach environment in a preferred embodiment of the present invention;

[0020] Figure 3 is Figure 1 a cross-sectional view taken at A-A in

[0021] Figure 4 is Figure 1 a cross-sectional view taken at A-A in

[0022] Figure 5 is a cross-sectional view taken along the axial direction of the capsule system in another preferred embodiment of the present invention. Detailed Embodiments

[0023] The present invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural, method, or functional transformations made by those of ordinary skill in the art based on these embodiments are all included within the protection scope of the present invention.

[0024] It should be understood that the terms indicating relative spatial positions such as "upper", "lower", "outer", "inner", etc. used herein are for the purpose of facilitating description of the relationship between one unit or feature and another unit or feature as shown in the drawings. The terms of relative spatial positions may be intended to include different orientations of the device in addition to the orientation shown in the drawings during use or operation.

[0025] In the various drawings of the present invention, for the convenience of illustration, the dimensions of some structures or parts are exaggerated relative to other structures or parts. Therefore, it is only used to illustrate the basic structure of the subject matter of the present invention.

[0026] Referring to Figures 1 to 5 as shown, the capsule system of the present invention has an anchoring function and can be anchored to internal organs of the human body. It can be a sampling capsule, a drug-releasing capsule, a weight-loss capsule, or other capsules with therapeutic or intervention functions. In addition, the capsule system can also achieve functions such as passive de-anchoring, active de-anchoring, and multiple anchoring, so as to meet different requirements.

[0027] Specifically, referring to Figures 1 to 3 As shown, a capsule system provided by a preferred embodiment of the present invention includes a capsule 10 and an anchoring component 20 connected to the capsule 10. In this embodiment, after the anchoring component 20 is connected to the capsule 10, it enters the human body together with the capsule 10. When the capsule 10 reaches a certain position inside a specified organ, the anchoring component 20 is controlled to limit the capsule 10 at this position and keep it stationary, so as to facilitate operations such as inspection, sampling, drug administration, or treatment of this area by the capsule 10. After the capsule 10 completes the foregoing operations, the anchoring component 20 is controlled to release the anchoring state of the capsule 10, and then the anchoring component 20 is discharged or taken out of the human body together with the capsule. By anchoring and releasing the anchoring of the capsule 10 by the anchoring component 20, the realization of various functions of the capsule 10 is satisfied.

[0028] Continuing to refer to Figure 1 As shown, specifically, the anchoring component 20 includes an anchor 21 and a pressure relief structure 22, and the anchor 21 has a retractable and expandable accommodation cavity 21a.

[0029] In this embodiment, the anchor 21 is made of an elastic material and can produce elastic deformation or return to its initial state after the internal pressure changes. The anchor 21 has biocompatibility and can be made of, for example, silicone material.

[0030] The pressure relief structure 22 can release the high-pressure substance inside the anchor 21, thereby reducing the internal pressure of the accommodation cavity 21a, and then reducing the outer diameter size of the anchor 21, so that the anchor 21 returns to its initial state before the expanded state, facilitating the discharge or pulling out of the capsule system from the human body.

[0031] The anchor 21 is connected to the outside of the capsule 10. Before the anchoring component 20 realizes the anchoring state, that is, the radial dimension of the anchor 21 before expansion is not greater than the radial dimension of the capsule 10, so as to facilitate the anchor 21 and the capsule 10 to enter the human body together and ensure free movement in the organ. When the anchoring component 20 realizes the anchoring state, that is, the radial dimension of the anchor 21 after expansion is greater than the radial dimension of the capsule 10 and matches the inner diameter dimension of the organ inside, so as to limit the capsule system inside the organ.

[0032] Specifically, the capsule 10 has a pressure relief hole 13 communicating with the accommodation cavity 21a, and the pressure relief structure 22 can selectively open or block the pressure relief hole 13. In this embodiment, when the anchor 21 expands, the pressure in the accommodation cavity 21a is greater than the pressure of the environment where the capsule system is located. At this time, the blocked pressure relief hole 13 is opened, and the substance in the accommodation cavity 21a flows out of the accommodation cavity 21a under the action of air pressure.

[0033] Further, the pressure relief structure 22 includes a plug member 22a that cooperates with the pressure relief hole 13 and a deformation member 22b that connects the plug member 22a. The plug member 22a moves away from the pressure relief hole 13 driven by the heat-induced deformation force of the deformation member 22b.

[0034] In this embodiment, the plug member 22a is preferably an elastic rubber plug, so that the sealing performance is better when the plug member 22a seals the pressure relief hole 13, reducing or blocking the high-pressure fluid leaking from the accommodation cavity 21a through the pressure relief hole 13. Of course, in some embodiments, the plug member 22a is not sealed on the pressure relief hole 13, that is, there is always a certain gap between the plug member 22a and the pressure relief hole 13. In this way, even if the plug member 22a on the pressure relief hole 13 is not removed, the pressure relief structure 22 can slowly decompress the accommodation cavity 21a, thereby realizing the passive release of the anchoring of the capsule system.

[0035] The deformation member 22b generates a deformation force after being heated, and uses this deformation force to drive the plug member 22a to be removed from the pressure relief hole 13, thereby performing a decompression operation on the accommodation cavity 21a and restoring the anchoring member 21 to its initial state. Among them, due to the slow deformation process of the deformation member 22b after being heated, and the slow process of the deformation member 22b reaching the deformation temperature, the speed of the plug member 22a being removed from the pressure relief hole 13 is slowed down. In addition, the removal speed of the plug member 22a can be controlled by controlling the deformation amount of the deformation member 22b after being heated and the heating process of the deformation member 22b, further improving the safety of the capsule system when releasing the anchoring.

[0036] Of course, in some embodiments, the deformation member 22b can also be deformed in other ways to generate a deformation force. For example, the piezoelectric effect of piezoelectric ceramics can be used to deform the piezoelectric oscillator to obtain a deformation force.

[0037] The pressure relief structure 22 uses the deformation force generated by the deformation member 22b when heated to slowly remove the plug member 22a on the pressure relief hole 13, so that the high-pressure substance in the anchoring member 21 is slowly released through the pressure relief hole 13, avoiding impact on the internal organs of the human body and eliminating potential safety hazards.

[0038] Specifically, the capsule 10 includes a housing 11 connected to the anchoring member 21, a partition 15 disposed in the housing 11 and connected to the pressure relief structure 22, and a valve body 17 connected to the housing 11 and forming the pressure relief hole 13. A pressure relief guide hole 11c communicating the accommodation cavity 21a and the pressure relief hole 13 is provided on the housing 11, and the central axis of the pressure relief hole 13 and the central axis of the pressure relief guide hole 11c are arranged at a certain angle.

[0039] In this embodiment, after the high-pressure fluid in the accommodation cavity 21a enters the valve body 17 through the pressure relief guide hole 11c and is discharged out of the valve body 17 through the pressure relief hole 13, since there is a certain angle between the central axis of the pressure relief hole 13 and the central axis of the pressure relief guide hole 11c, the flow velocity of the high-pressure fluid is reduced after passing through the valve body 17, and the flow velocity of the fluid flowing out of the pressure relief hole 13 is further reduced, thereby improving the safety of the capsule system during contact and anchoring. The central axis of the pressure relief hole 13 and the central axis of the pressure relief guide hole 11c are preferably perpendicular to each other.

[0040] Specifically, the housing 11 has a first housing 11d for accommodating the pressure relief structure 22, a first installation cavity 11e formed between the first housing 11d and the partition 15, and a through hole 11a provided on the first housing 11d and communicating the first installation cavity 11e with the outside of the housing 11. The pressure relief structure 22 and the valve body 17 are both arranged in the first installation cavity 11e.

[0041] In this embodiment, the pressure relief structure 22 and the valve body 17 are arranged in the first installation cavity 11e in the housing 11, which can prevent the pressure relief structure 22 from being damaged by external extrusion when entering the human body, and also prevent the valve body 17 from damaging organs when entering the human body. The high-pressure substance discharged from the accommodation cavity 21a first enters the first installation cavity 11e through the pressure relief hole 13, and then is discharged to the outside of the capsule 10 through the through hole 11a. This method can also further reduce the flow velocity of the fluid flowing out of the accommodation cavity 21a, thereby improving the safety of the capsule system during contact and anchoring.

[0042] Of course, in some embodiments, the pressure relief structure 22 can also be fixed on the valve body 17, that is, after the pressure relief structure 22 and the valve body 17 are connected to each other as a whole and then installed in the first installation cavity 11e. At this time, only the valve body 17 needs to be positioned and installed with the pressure relief guide hole 11c, thereby saving the positioning and installation steps of the plug 22a and the pressure relief hole 13 and reducing the manufacturing cost.

[0043] Furthermore, the anchoring assembly 20 further includes a pressurizing structure 23 arranged in the first installation cavity 11e. In this embodiment, the pressurizing structure 23 can be used to fill the inside of the anchor 21, drive the anchor 21 to expand, increase the volume of the accommodation cavity 21a, and increase the outer diameter size of the anchor 21. Moreover, when selecting the pressurizing structure 23, the maximum pressure that the pressurizing structure 23 can generate should be less than the maximum pressure that the anchor 21 can withstand, so as to avoid damage to the human body caused by the rupture of the anchor 21 due to excessive pressure. Arranging the pressurizing structure 23 in the housing 11 can prevent it from being damaged by external extrusion when entering the human body.

[0044] Specifically, the pressurizing structure 23 has a pressure chamber 23a that communicates unidirectionally with the accommodation chamber 21a. In this embodiment, the pressure chamber 23a communicates unidirectionally with the accommodation chamber 21a, that is, the fluid can only enter the accommodation chamber 21a from the pressure chamber 23a, and cannot enter the pressure chamber 23a from the accommodation chamber 21a. In this way, when the pressurizing structure 23 fills the inside of the anchor 21, the fluid entering the anchor 21 will not flow back into the pressurizing structure 23, ensuring that the pressurizing structure 23 continuously and stably expands the anchor 21.

[0045] Specifically, the pressurizing structure 23 has a pump body 23b that forms the pressure chamber 23a, a first one-way member 23c disposed on the pump body 23b and communicating the pressure chamber 23a with the accommodation chamber 21a unidirectionally, and a second one-way member 23d disposed on the pump body 23b and communicating the outside of the pressurizing structure 23 with the pressure chamber 23a unidirectionally.

[0046] In this embodiment, the first one-way member 23c and the second one-way member 23d are selected from one-way valves or one-way membranes, etc. The one-way valve only allows the fluid to pass unidirectionally and can withstand a large pressure in the reverse direction without allowing the fluid to pass. The installation method of the one-way valve is to open a hole at the corresponding position of the pump body 23b, and the one-way valve is sealed in the hole. The one-way membrane also only allows unidirectional passage, and the installation method is to open a hole at the corresponding position of the pump body 23b, and the one-way membrane covers the hole. Specifically, the first one-way member 23c allows the fluid to enter the accommodation chamber 21a from the pressure chamber 23a and blocks the fluid in the accommodation chamber 21a from flowing into the pressure chamber 23a; the second one-way member 23d allows the fluid to enter the pressure chamber 23a from outside the pressurizing structure 23 and blocks the fluid in the pressure chamber 23a from flowing outside the pressurizing structure 23.

[0047] Specifically, the pressurizing structure 23 is configured as a piezoelectric pump and has a piezoelectric sheet that changes the internal pressure of the pressure chamber 23a. In this embodiment, the piezoelectric sheet is made of a piezoelectric material and is sealed in the pump body 23b. After applying a voltage to the piezoelectric sheet, it can generate deformation, change the volume in the pump body 23b, thereby increasing or decreasing the internal pressure of the pump body 23b to continuously input the fluid outside the pressurizing structure 23 into the accommodation chamber 21a.

[0048] In this embodiment, the inverse piezoelectric effect of the piezoelectric ceramic is used to make the piezoelectric vibrator generate deformation, and then the volume change of the pump chamber is generated by the deformation to realize fluid output. In some embodiments, the piezoelectric sheet can also be replaced with a deformation sheet composed of a combination of two metals with different thermal deformation coefficients. Since the deformation coefficients of the two metal diaphragms when heated are different, when using a heating element, such as a resistor, to heat them, the two will undergo different degrees of deformation. Or the piezoelectric sheet can also be replaced with a combination of two shape memory alloys. When the temperature is raised to a certain temperature using a heating element, the shape memory alloy will deform.

[0049] Furthermore, the capsule 10 also includes a waterproof breathable membrane 11f fixed on the first shell 11d and closing the through hole 11a. In this embodiment, by shielding the through hole 11a with the waterproof breathable membrane 11f, on the one hand, the gas flowing into the first installation cavity 11e through the pressure relief hole 13 can smoothly flow through the through hole 11a to the outside of the capsule 10, and on the other hand, it can also limit the liquid outside the capsule 10 from entering the first installation cavity 11e through the through hole 11a, thereby preventing the pressure relief structure 22 from being affected by the environmental factors of the capsule system. At this time, the boosting structure 23 can also fill the accommodating cavity 21a by extracting the gas in the environment of the capsule system, thereby expanding the anchor 21. On the other hand, the waterproof breathable membrane 11f can also reduce the pressure of the gas discharged from the first installation cavity 11e, further improving the safety of the capsule system when it is in contact with the anchor.

[0050] Furthermore, the shell 11 also has a second shell 11g connected to the first shell 11d and located on the side of the partition 15 away from the pressure relief structure 22, and a second installation cavity 11h formed between the second shell 11g and the partition 15. The capsule 10 also includes a camera assembly 19 arranged in the second installation cavity 11h.

[0051] In this embodiment, the camera assembly 19 is provided so that the capsule system can be used as a capsule endoscope and has the function of examining the internal organs of the human body. When the user learns through the camera assembly 19 that the capsule system has reached the designated position, the pressure relief structure 22 or the pressure boosting structure 23 is controlled to work, thereby improving the accuracy of the position of the capsule system when anchoring and releasing the anchoring. The first shell 11d and the second shell 11g are fixed by UV glue to ensure the sealing of the internal space. The partition 15 seals and separates the anchor assembly 20 from the camera assembly 19 to prevent the camera assembly 19 from being affected by the anchor assembly 20 when working.

[0052] Further, with reference to Figure 2 As shown, the anchor 21 is connected to the first shell 11d and is located at one end of the first shell 11d away from the second shell 11g. The shell 11 has at least two through holes 11a, and the at least two through holes 11a are evenly arranged around the central axis of the shell 11.

[0053] In this embodiment, the anchor 21 is disposed at one end of the capsule 10, and the anchor 21 and the capsule 10 are arranged along the center axis of the shell 11. When the capsule system is in the gastric acid solution in the digestive tract, since the anchor 21 contains a certain amount of gas, and the weight of the capsule system at one end of the anchor 21 is less than the weight of the end of the capsule system away from the anchor 21, at this time, the end of the capsule system at the anchor 21 is at least partially exposed above the liquid surface of the gastric acid solution, and the end of the capsule system away from the anchor 21 is immersed below the liquid surface of the gastric acid solution.

[0054] Moreover, a waterproof and breathable film 11f is provided on the through hole 11a in this embodiment, and the gas in the organ can smoothly enter the first installation cavity 11e through the through hole 11a. In this way, since a plurality of through holes 11a are circumferentially and uniformly arranged around the central axis of the housing 11, when the capsule system is in the gastric acid in the digestive tract, at least some of the plurality of through holes 11a are in contact with air, ensuring that the gas in the organ can enter the first installation cavity 11e, and then be sucked into the accommodation cavity 21a by the pressurizing structure 23, and then the gas for inflating the anchor 21 is obtained.

[0055] Furthermore, the anchoring assembly 20 further includes a pressure detection device 27 disposed in the accommodation cavity 21a, and the pressure detection device 27 is fixed on the first shell 11d. In this embodiment, the pressure detection device 27 is used to obtain the pressure value inside the accommodation cavity 21a, so as to facilitate the operator to judge whether the capsule system is in the anchored state or the unanchored state. When the user obtains the state of the capsule system, the pressure relief structure 22 and / or the pressurizing structure 23 can be controlled, so as to meet the needs of continuous anchoring and multiple anchoring of the capsule. In some embodiments, the pressure detection device 27 can also be a sensor that can simultaneously detect pressure and temperature, so as to more accurately obtain the state of the capsule system.

[0056] In order to enable the pressure relief structure 22 to drive the plugging member 22a to be removed from the pressure relief hole 13 through the deformation force generated by the deformation of the deformation member 22b when heated, as Figure 3 shown, the present invention provides a preferred embodiment of the pressure relief structure 22. In this embodiment, the plugging member 22a and the deformation member 22b are directly connected, with a simple structure and low manufacturing cost.

[0057] With reference to Figure 3 shown, specifically, the deformation member 22b has a fixed end 22b1 fixed in the capsule 10 and a free end 22b2 extending away from the fixed end 22b1, and the plugging member 22a is fixed to the free end 22b2 of the deformation member 22b.

[0058] In this embodiment, when the capsule system needs to be anchored, the deformation member 22b uses its own rigidity to squeeze the plugging member 22a against the pressure relief hole 13 to prevent the high-pressure substance in the accommodation cavity 21a from leaking through the pressure relief hole 13. When the capsule system needs to be unanchored, the deformation member 22b is heated, causing the deformation member 22b to deform, thereby driving the plugging member 22a to be slowly removed from the pressure relief hole 13, and then performing a pressure relief operation on the accommodation cavity 21a. When the capsule system needs to be anchored multiple times, after unanchoring, it can wait for a period of time, that is, until the temperature of the deformation member 22b decreases and gradually returns to the initial state, and the deformation member 22b reuses its own rigidity to squeeze the plugging member 22a against the pressure relief hole 13, and so on.

[0059] Specifically, the pressure relief structure 22 further includes a mounting member 22h fixed to the partition plate 15 and connected to the deformable member 22b, and the plugging member 22a is fixed to the free end 22b2 of the deformable member 22b. When the deformation amount generated by the deformable member 22b is converted into the displacement distance of the plugging member 22a, the displacement distance of the plugging member 22a is maximally increased, ensuring that the plugging member 22a can be completely removed from the pressure relief hole 13, so that the pressure relief structure 22 can quickly relieve the pressure of the accommodation cavity, and the capsule system can quickly release the anchoring. Moreover, the pressure relief structure 22 in this embodiment has a simple structure and a low manufacturing cost.

[0060] Specifically, the pressure relief structure 22 further includes a heating member 22g provided on the deformable member 22b. In this embodiment, the heating member 22g is preferably a heating wire, and at least a part of the outer wall of the deformable member 22b is wound with a heating wire. By energizing the heating wire, the deformable member 22b is heated. Of course, in other embodiments, the heating member 22g can also be a heating resistor connected to the deformable member 22b, and the deformable member 22b is heated by energizing the heating resistor.

[0061] Specifically, the deformable member 22b is made of a dual-thermal expansion coefficient metal material or a shape memory alloy material. In this embodiment, the deformable member 22b is preferably made of a dual-thermal expansion coefficient metal material, so that the deformable member 22b is bent and deformed after being heated, thereby driving the plugging member 22a to be slowly removed from the pressure relief hole 13. In some embodiments, the deformable member 22b can also be made of a shape memory alloy material, that is, the deformable member 22b contracts and deforms after being heated, as long as it can drive the plugging member 22a to be slowly removed from the pressure relief hole 13.

[0062] In order to enable the pressure relief structure 22 to drive the plugging member 22a to be removed from the pressure relief hole 13 by the deformation force generated by the heating of the deformable member 22b, as Figure 4 shown, the present invention provides another preferred embodiment of the pressure relief structure 22. In this embodiment, a transmission connection is adopted between the plugging member 22a and the deformable member 22b. After the deformation amount of the deformable member 22b is transmitted to the plugging member 22a through the transmission member 22c, the moving distance of the plugging member 22a is increased, ensuring that the plugging member 22a is completely separated from the deformable member 22b, and then the capsule system can quickly release the anchoring.

[0063] With reference to Figure 4As shown, specifically, the pressure relief structure 22 includes a transmission member 22c connecting the deformation member 22b and the blocking member 22a, and the transmission member 22c is rotatably disposed in the capsule 10. In this embodiment, the deformation member 22b transmits the generated deformation force to the blocking member 22a by the rotation of the transmission member 22c, thereby driving the blocking member 22a to be slowly removed from the pressure relief hole 13. This transmission method can reduce the loss of the transmission member 22c when transmitting the deformation force.

[0064] Specifically, the distance between the blocking member 22a and the rotation axis of the transmission member 22c is greater than the distance between the connection end of the deformation member 22b and the transmission member 22c and the rotation axis of the transmission member 22c. In this embodiment, since the distance between the force point where the deformation member 22b acts on the transmission member 22c and the rotation axis of the transmission member 22c is less than the distance between the force point where the blocking member 22a acts on the transmission member 22c and the rotation axis of the transmission member 22c, when the deformation member 22b transmits the deformation force through the transmission member 22c, the force arm between the deformation member 22b and the transmission member 22c is less than the force arm between the blocking member 22a and the transmission member 22c, that is, the distance that the connection end of the deformation member 22b and the transmission member 22c rotates around the rotation axis of the transmission member 22c is always less than the distance that the blocking member 22a rotates around the rotation axis of the transmission member 22c. Therefore, after the deformation of the deformable member 22b is transmitted to the blocking member 22a through the transmission member 22c, the moving distance of the blocking member 22a is increased, ensuring that the blocking member 22a is completely separated from the deformable member 22b, and then the capsule system can be quickly released from the anchoring.

[0065] Specifically, the transmission member 22c has a rotating seat 22c1, a first arm 22c2 connecting the rotating seat 22c1 and the deformation member 22b, and a second arm 22c3 connecting the rotating seat 22c1 and the blocking member 22a. The pressure relief structure 22 also includes an elastic member 22d fixed in the capsule 10 and abutting against the second arm 22c3. The elastic member 22d abuts against the side of the second arm 22c3 away from the blocking member 22a, so that after the deformation member 22b recovers, the blocking member 22a is driven to move toward the pressure relief hole 13.

[0066] In this embodiment, when the capsule system needs to be anchored, the transmission member 22c is subjected to the elastic force of the elastic member 22d, and the plugging member 22a is squeezed and fitted onto the pressure relief hole 13 to prevent the high-pressure substance in the accommodation cavity 21a from leaking out through the pressure relief hole 13. When the capsule system needs to release the anchor, by heating the deformation member 22b, the deformation member 22b deforms, causing the transmission member 22c to rotate against the elastic force of the elastic member 22d. At this time, after the plugging member 22a rotates together with the transmission member 22c, it is slowly removed from the pressure relief hole 13, thereby performing a pressure relief operation on the accommodation cavity 21a. When the capsule system needs to be anchored multiple times, it can wait for a period of time after releasing the anchor, that is, until the temperature of the deformation member 22b decreases and gradually returns to the initial state. At this time, due to the elastic force of the elastic member 22d acting on the transmission member 22c, the plugging member 22a is re-squeezed and fitted onto the pressure relief hole 13, and so on in cycles.

[0067] Specifically, the pressure relief structure 22 further includes a mounting member 22h fixed to the partition plate 15, and the rotating seat 22c1 is rotatably arranged on the mounting member 22h, so that the transmission member 22c rotates around the mounting member 22h. One end of the elastic member 22d is fixed to the mounting member 22h, and the other end abuts against the second wall 22c3, so that when the deformation member 22b returns to the initial state, the plugging member 22a is elastically abutted against the pressure relief hole 13. The elastic member 22d in this embodiment is preferably a torsion spring. Of course, in some embodiments, one end of the elastic member 22d is fixed to the mounting member 22h, and the other end can also abut against the rotating seat 22c1 or the first wall 22c2, as long as it can satisfy that when the deformation member 22b returns to the initial state, the plugging member 22a is elastically abutted against the pressure relief hole 13.

[0068] Specifically, the deformation member 22b is made of a dual-thermal expansion coefficient metal material or a shape memory alloy material. In this embodiment, the deformation member 22b is preferably made of a shape memory alloy material, so that the deformation member 22b contracts and deforms when heated, thereby driving the plugging member 22a to be slowly removed from the pressure relief hole 13. For example, it can be a shape memory alloy (SMA) in the form of a filamentous structure. After the shape of this material is changed, its inherent shape memory effect (SME) can be activated under temperature changes, and then it automatically generates recovery stress and strain to drive the material to return to its original state.

[0069] In some embodiments, the deformation member 22b can also be made of a shape memory alloy material, that is, the deformation member 22b bends when heated, as long as it can achieve driving the plugging member 22a to be slowly removed from the pressure relief hole 13.

[0070] Specifically, the pressure relief structure 22 also includes a heating element 22g disposed on the deformation member 22b. In the present embodiment, the heating element 22g is preferably connected to the heating resistor of the deformation member 22b, and the deformation member 22b is heated by energizing the heating resistor. It is also possible to directly energize both ends of the deformation member 22b, and utilize the resistance of the material itself and the thermal effect of the current to generate heat and then heat the deformation member 22b itself. Of course, in another embodiment, the heating element 22g may also be a heating wire, and at least a portion of the outer wall of the deformation member 22b is wrapped with the heating wire, and the deformation member 22b is heated by energizing the heating wire.

[0071] Furthermore, the deformable member 22b is connected to one end of the first arm 22c2 away from the rotating seat 22c1, and the blocking member 22a is arranged at one end of the second arm 22c3 away from the rotating seat 22c1, and the length of the second arm 22c3 is 2-4 times the length of the first arm 22c2.

[0072] In this embodiment, the length of the second arm 22c3 is at least twice the length of the first arm 22c2, which can be set as needed, and is preferably 2-4 times, as long as the deformation amount of the deformable member 22b can be transmitted to the blocking member 22a through the transmission member 22c, thereby increasing the moving distance of the blocking member 22a.

[0073] Furthermore, the deformable member 22b has a first end 22b3 connected to the transmission member 22c and a second end 22b4 connected to the capsule 10. In this embodiment, the deformable member 22b can be heated by applying voltage to the first end 22b3 and the second end 22b4 of the deformable member 22b.

[0074] Furthermore, the pressure relief structure 22 also includes at least one abutting member 22e abutting against the deformable member 22b, the abutting member 22e is connected to the capsule 10 and is spaced apart from the first end 22b3 and the second end 22b4. In this embodiment, after the deformable member 22b is wrapped around a portion of the outer edge of the abutting member 22e, the first end 22b3 is fixedly connected to the first wall 22c2, and the second end 22b4 is fixed to the partition 15, so that the deformable member 22b is always in a taut and straightened state. The setting of the abutting member 22e increases the length of the deformable member 22b, thereby increasing the amount of telescopic deformation generated by the deformable member 22b, and then increasing the stroke of the blocking member 22a.

[0075] Specifically, since the deformable member 22b adopts a filamentary structure, the abutting member 22e can preferably be a columnar structure with an arc-shaped edge. One abutting member 22e is preferred, and when the abutting member 22e is fixed on the partition 15, it will not block the second one-way member 23d, thereby ensuring that the gas in the first installation cavity 11e enters the second one-way member 23d more smoothly.

[0076] Further, the first end 22b3 and the second end 22b4 are located on the same side of the abutting member 22e. In this embodiment, after the first end 22b3 and the second end 22b4 are energized, heat is generated, causing the deformable member 22b to contract, and positioning the first end 22b3 and the second end 22b4 on the same side of the abutting member 22e can shorten the distance between the first end 22b3 and the second end 22b4. Subsequently, the length of the wire loop connecting the first end 22b3 and the second end 22b4 can be reduced, shortening the circuit path, saving the installation space, and reducing the manufacturing cost at the same time.

[0077] Further, the pressure relief structure 22 further includes at least one guiding member 22f abutting against the deformable member 22b. The guiding member 22f is connected to the capsule 10 and is located outside the abutting member 22e to reduce the length of the deformable member 22b abutting against the abutting member 22e.

[0078] In this embodiment, it is preferably set that there are two guiding members 22f located outside the abutting member 22e, and the guiding members 22f are fixed to the partition plate 15. The setting of the guiding members 22f can reduce the length of the deformable member 22b abutting against the abutting member 22e, ensuring smooth telescoping when the deformable member 22b abuts against the abutting member 22e. Moreover, the setting of the guiding members 22f can further increase the length of the deformable member 22b, thereby increasing the telescopic deformation amount generated by the deformable member 22b, and then increasing the stroke of the plugging member 22a. The guiding member 22f preferably has a columnar structure with a circular arc-shaped edge, and the outer diameter dimension of the abutting member 22e is larger than the outer diameter dimension of the guiding member 22f.

[0079] After the deformable member 22b is wound around a part of the outer edges of the abutting member 22e and the guiding member 22f, the first end 22b3 is fixedly connected to the first wall 22c2, and the second end 22b4 is fixed to the partition plate 15, so that the deformable member 22b is always in a taut and straight state.

[0080] Reference Figure 5 As shown, another preferred embodiment of the present invention provides a capsule system. The anchoring assembly 20 of this capsule system not only adopts the same pressure relief structure 22 and pressure boosting structure 23 as in the above embodiment, but also part of the structure of the capsule 10 is the same, as well as the corresponding structures formed by the combination of these structures, which will not be elaborated here.

[0081] Moreover, in this embodiment, by introducing the acidic substance preset in the storage bin 23e into the reaction bin 25 and directly reacting with the alkaline substance preset in the reaction bin 25, the influence of the environmental factors of the capsule system on the anchoring member group 20 is avoided, the stability of the filling gas generated by the anchoring assembly 20 is improved, and the expansion process of the anchoring member 21 is accelerated.

[0082] Specifically, the anchoring assembly 20 further includes a reaction chamber 25 disposed within the receiving chamber 21a. In this embodiment, an alkaline substance, such as sodium bicarbonate powder, is placed in the reaction chamber 25 for reacting with an acidic substance entering the reaction chamber 25, thereby generating gas and expanding the anchoring member 21.

[0083] Furthermore, the reaction chamber 25 communicates with the receiving chamber 21a, such that after the pressure in the pressure chamber 23a increases, the pressurizing structure 23 introduces at least a portion of the fluid outside the receiving chamber 21a into the reaction chamber 25. In this embodiment, since the reaction chamber 25 communicates with the receiving chamber 21a, on the one hand, the acidic fluid substance in the receiving chamber 21a can enter the reaction chamber 25, thereby reacting with the alkaline substance in the reaction chamber 25 to generate gas; on the other hand, the gas generated by the reaction in the reaction chamber 25 can enter the receiving chamber 21a, thereby anchoring the anchoring member 21. Additionally, by disposing the reaction chamber 25 within the anchoring member 21, the heat generated by the acid-base neutralization reaction in the reaction chamber 25 can be used to fill the anchoring member 21, further enhancing the anchoring speed of the capsule system.

[0084] By providing a reaction chamber 25 within the anchoring member 21 and pre-placing substances to be reacted in the reaction chamber 25, after the pressurizing structure 23 extracts external fluid into the anchoring member 21, the substances in the reaction chamber 25 react to generate gas, and the generated gas can rapidly expand the anchoring member 21, enabling the capsule system to achieve anchoring in a short time.

[0085] Furthermore, the first one-way member 23c is disposed to open towards the interior of the reaction chamber 25. In this embodiment, the fluid introduced by the pressurizing structure 23 from outside the pressure chamber 23a first directly enters the reaction chamber 25 through the first one-way member 23c, and then flows from the reaction chamber 25 into the receiving chamber 21a, such that the fluid inhaled by the pressurizing structure 23 is in full contact with the reserved substances in the reaction chamber 25, ensuring sufficient reaction. Moreover, when the pressurizing structure 23 inhales fluid into the receiving chamber 21a, the fluid comes into contact with the reserved substances in the reaction chamber 25 immediately, thereby increasing the reaction speed and subsequently enhancing the anchoring speed of the capsule system.

[0086] Of course, in some embodiments, the first one-way member 23c can also be disposed to open towards the receiving chamber 21a, that is, the fluid inhaled by the pressurizing structure 23 first enters the receiving chamber 21a and then enters the reaction chamber 25. Or the first one-way member 23c is disposed to open towards both the interior of the receiving chamber 21a and the reaction chamber 25, that is, the fluid inhaled by the pressurizing structure 23 enters both the receiving chamber 21a and the reaction chamber 25 simultaneously. Both of the above two embodiments can achieve the invention purpose of the present utility model.

[0087] Further, the pressurizing structure 23 further includes a storage bin 23e that is hermetically connected to the pump body 23b, and the second one-way member 23d is arranged to open towards the inside of the storage bin 23e. In this embodiment, an acidic substance, such as citric acid, is pre-placed in the storage bin 23e. Therefore, the storage bin 23e is preferably made of acid-resistant material, such as silica gel. After a positive voltage is applied to the piezoelectric sheet, the piezoelectric sheet deforms and drives the pressure in the pressure chamber 23a to decrease. The fluid in the storage bin 23e enters the pressure chamber 23a through the second one-way member 23d. After a reverse voltage is applied to the piezoelectric sheet, the piezoelectric sheet deforms and drives the pressure in the pressure chamber 23a to increase. The fluid in the pressure chamber 23a enters the reaction chamber 25 through the first one-way member 23c, realizing the reaction of citric acid and sodium bicarbonate to generate gas, thereby expanding the anchoring member 21.

[0088] Moreover, by introducing the acidic substance pre-placed in the storage bin 23e into the reaction chamber 25 and directly reacting it with the alkaline substance pre-placed in the reaction chamber 25, the influence of environmental factors on the capsule system on the anchoring member group 20 is avoided, the stability of the filling gas generated by the anchoring assembly 20 is improved, and the expansion process of the anchoring member 21 is accelerated.

[0089] Further, a pressurizing guide hole 11b that communicates with the reaction chamber 25 and corresponds to the first one-way member 23c is provided on the housing 11. The pressurizing guide hole 11b extends along the central axis of the housing 11. A plurality of diversion holes 25a that communicate with the accommodation chamber 21a and extend in a direction perpendicular to the central axis of the housing 11 are provided on the side wall of the reaction chamber 25. The foregoing plurality of diversion holes 25a are circumferentially and uniformly arranged around the central axis of the housing 11.

[0090] In this embodiment, the reaction chamber 25 is connected to the housing 11 and is arranged opposite to the pressurizing guide hole 11b along the central axis of the housing 10, that is, the central axis of the reaction chamber 25 and the central axis of the pressurizing guide hole 11b are collinear with each other. Moreover, the plurality of diversion holes 25a are circumferentially and uniformly arranged around the central axis of the housing 11, so that when the gas generated in the reaction chamber 25 fills the accommodation chamber 21a, the gas discharged from the plurality of diversion holes 25a uniformly faces the inner wall of the anchoring member 21. In this way, the pressure received by each part of the anchoring member 21 is equal during the expansion process, improving the stability of the anchoring member 21 during expansion. The inner diameter size of the diversion hole 25a is preferably 0.5-1 mm.

[0091] Moreover, since the central axis of the pressurizing guide hole 11b and the central axis of the diversion hole 25a are perpendicular to each other, when the fluid sucked into the reaction chamber 25 by the pressurizing structure 23 first flows into the pressure chamber 25 through the pressurizing guide hole 11b and then flows out of the pressure chamber 25 through the diversion hole 25a after filling the reaction chamber 25, the residence time of the fluid in the reaction chamber 25 is extended, thereby increasing the reaction time of the fluid in the reaction chamber 25.

[0092] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0093] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A capsule system, comprising a capsule and an anchoring component connected to the capsule, the anchoring component including an anchor and a pressure relief structure, the anchor having a collapsible and expandable accommodation cavity, the capsule having a pressure relief hole communicating with the accommodation cavity, and the pressure relief structure selectively opening or blocking the pressure relief hole, characterized in that, The pressure relief structure includes a plugging member matched with the pressure relief hole and a deformable member connected to the plugging member, and the plugging member moves away from the pressure relief hole based on the thermal deformation force of the deformable member; The pressure relief structure utilizes the deformation force generated by the heat of the deformable member to slowly remove the blocking member on the pressure relief hole, so that the high-pressure material in the anchoring member is slowly released through the pressure relief hole, thereby avoiding impact on the internal organs of the human body.

2. The capsule system according to claim 1, wherein, The deformable member has a fixed end fixed in the capsule and a free end extending away from the fixed end, and the blocking member is fixed to the free end of the deformable member.

3. The capsule system according to claim 1, wherein The pressure relief structure includes a transmission member connecting the deformation member and the blocking member, the transmission member is rotatably arranged in the capsule, and the distance from the blocking member to the rotation axis of the transmission member is greater than the distance from the connection end of the deformation member and the transmission member to the rotation axis of the transmission member.

4. The capsule system according to claim 3, wherein, The transmission member comprises a rotating seat, a first arm connecting the rotating seat and the deformation member, and a second arm connecting the rotating seat and the blocking member. The pressure relief structure also comprises an elastic member fixed in the capsule and abutting against the second arm. The elastic member abuts against a side of the second arm away from the blocking member so that after the deformation member recovers, the blocking member is driven to move toward the pressure relief hole.

5. The capsule system according to claim 4, characterized in that, The deformable member is connected to one end of the first arm away from the rotating seat, the blocking member is arranged at one end of the second arm away from the rotating seat, and the length of the second arm is 2-4 times the length of the first arm.

6. The capsule system according to claim 3, wherein The deformable member has a first end connected to the transmission member and a second end connected to the capsule. The pressure relief structure further includes at least one abutting member abutting against the deformable member, the abutting member is connected to the capsule and is spaced apart from the first end and the second end.

7. The capsule system according to claim 6, characterized in that, The first end and the second end are located on the same side of the abutment member, and the pressure relief structure further comprises at least one guide member abutting against the deformable member, wherein the guide member is connected to the capsule and is located outside the abutment member to reduce the length of the deformable member abutting against the abutment member.

8. The capsule system according to claim 1, wherein The pressure relief structure also includes a heating element arranged on the deformable element, and the deformable element is made of a double thermal deformation coefficient metal material or a shape memory alloy material.

9. The capsule system according to claim 1, characterized in that, The capsule includes a shell connected to an anchor, a partition arranged in the shell and connected to a pressure relief structure, and a valve body connected to the shell to form a pressure relief hole. A pressure relief guide hole connecting the accommodating cavity and the pressure relief hole is arranged on the shell, and the central axis of the pressure relief hole is arranged at a certain angle to the central axis of the pressure relief guide hole.

10. The capsule system according to claim 9, wherein, The shell has a first shell accommodating a pressure relief structure, a first installation cavity formed between the first shell and a partition, and a through hole arranged on the first shell and connecting the first installation cavity with the outside of the shell. The pressure relief structure and the valve body are both arranged in the first installation cavity.

11. The capsule system according to claim 10, wherein The anchoring assembly further includes a pressurizing structure disposed in the first installation cavity, and the capsule further includes a waterproof and breathable membrane fixed on the first shell and closing the through hole.

12. The capsule system according to claim 10, characterized in that, The shell also has a second shell connected to the first shell and located on the side of the partition away from the pressure relief structure, and a second installation cavity formed between the second shell and the partition. The capsule also includes a camera assembly arranged in the second installation cavity. The anchor is connected to the first shell and located at one end of the first shell away from the second shell. The shell has at least two through holes, and the aforementioned at least two through holes are evenly arranged circumferentially around the central axis of the shell.

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