An internet-based digestive tract sampling capsule

Abstract

This invention discloses an internet-based digestive tract sampling capsule, comprising a capsule body with a placement cavity inside. The placement cavity houses a chip, a power supply, and a locator. The power supply provides power to the chip and locator. The locator is connected to the chip and can send location information to the chip. The chip can interact with external devices. The capsule body has multiple liquid-containing chambers arranged longitudinally. A liquid channel is formed on the left wall of each liquid-containing chamber, and a digestive fluid plug is placed within the liquid channel. A sealing plate is located on the left side of the digestive fluid plug, sealing the liquid channel. The chip can control the sealing plate to open the liquid channel. This device can locate the capsule's position and, through a combination of active and passive sampling methods, can achieve precise location identification and ensure a high sampling success rate.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary device technology, specifically to an internet-based digestive tract sampling capsule. Background Technology

[0002] Gastrointestinal sampling capsules, used to collect fluid samples from the digestive tract, are gaining increasing attention due to their safety and painless nature. The sampling methods of these capsules are generally divided into two types: active and passive.

[0003] Active sampling methods utilize vacuum, pumps, or other means to collect contents of the digestive tract. The advantage of active sampling is that the collection time is actively controllable; the disadvantage is that it is prone to air intake, leading to sampling failure.

[0004] Passive sampling typically involves sealing the sampling cavity with a special material plug. In a specific digestive fluid, this plug degrades, drawing external substances into the sampling cavity. Passive sampling minimizes the risk of air intake, resulting in a larger sample volume and higher success rate. However, its drawbacks include uncontrollable sampling, leading to inaccurate sampling locations. Furthermore, the special material plug degrades during intestinal or gastrointestinal movement, meaning only samples from the early part of the intestine or stomach can be collected, preventing the collection of samples from the later parts. This results in insufficient sample availability and inaccurate disease assessment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an internet-based digestive tract sampling capsule. This device can locate the capsule's position and, through a combination of active and passive sampling methods, can accurately determine the sampling location and ensure a high sampling success rate.

[0006] An internet-based digestive tract sampling capsule includes a capsule body with a placement cavity inside. The placement cavity contains a chip, a power supply, and a locator. The power supply powers the chip and locator. The locator is connected to the chip and can send positioning information to the chip. The chip can interact with external devices. The capsule body has multiple liquid-containing chambers arranged longitudinally. A liquid channel is formed on the left wall of each liquid-containing chamber. A digestive fluid plug is placed within the liquid channel. A sealing plate is located on the left side of the digestive fluid plug, sealing the liquid channel. The chip can control the sealing plate to open the liquid channel.

[0007] Preferably, it further includes a lower motion unit, a middle motion unit, and an upper motion unit. The liquid-containing cavity is configured as three, and a receiving cavity is provided inside the capsule body. The receiving cavity is located on the right side of the liquid-containing cavity. The top wall of the liquid channel has an upper groove, and the bottom wall of the liquid channel has a lower groove. The bottom of the lower groove is connected to the receiving cavity through a connecting channel. The sealing plate is slidably disposed in the lower groove. The sealing plate has a through hole, and the bottom wall of the sealing plate is connected to a support rod. A motor is provided inside the receiving cavity.

[0008] The lower motion unit includes a lower threaded rod, a lower motion plate, a lower smooth rod, a lower limit head, a lower connecting rod, a lower fixed plate, a lower pin, and a lower push column. The lower threaded rod is connected to the output shaft of the motor. The top end of the lower threaded rod is connected to the lower smooth rod, and the top end of the lower smooth rod is connected to the lower limit head. The lower motion plate is threadedly connected to the lower threaded rod and slidably connected to the rear wall of the receiving cavity. The lower motion plate is connected to the support rod corresponding to the bottom liquid-containing cavity via the lower connecting rod. The lower fixed plate is connected to the lower limit head. The lower pin moves through the lower fixed plate. The right wall of the lower pin is inclined downwards from the right side to the left side. The lower push column is connected to the lower motion plate.

[0009] The central motion unit includes a central rotating shaft, a central threaded rod, a central motion plate, a central smooth rod, a central limiting head, a central connecting rod, a central fixed plate, a central pin, and a central pushing column. The central rotating shaft is rotatably disposed within the receiving cavity. The top end of the central rotating shaft is connected to the central threaded rod, the top end of the central threaded rod is connected to the central smooth rod, and the top end of the central smooth rod is connected to the central limiting head. The central motion plate is threadedly connected to the central threaded rod and slidably connected to the rear wall of the receiving cavity. The central motion plate is connected to the corresponding support rod of the central liquid-containing cavity via the central connecting rod. The central fixed plate is connected to the central limiting head, and the central pin movably passes through the central fixed plate. The right wall of the central pin is inclined downwards in the direction from right to left. The central pushing column is connected to the central motion plate, and the central rotating shaft has a lower insertion hole.

[0010] The upper motion unit includes an upper rotating shaft, an upper threaded rod, an upper motion plate, an upper smooth rod, an upper limit head, and an upper connecting rod. The upper rotating shaft is rotatably disposed in the receiving cavity. The upper threaded rod is connected to the top of the upper rotating shaft. The upper smooth rod is connected to the top of the upper threaded rod. The upper limit head is connected to the top of the upper smooth rod. The upper motion plate is threadedly connected to the upper threaded rod. The upper motion plate is slidably connected to the rear wall of the receiving cavity. The upper motion plate is connected to the support rod corresponding to the liquid-containing cavity in the upper part through the upper connecting rod. The upper rotating shaft has a central insertion hole.

[0011] After the lower moving plate moves upward to the designated position, the lower pushing column can push the lower pin to the left, and the lower pin can be inserted into the lower insertion hole; after the middle moving plate moves upward to the designated position, the middle pushing column can push the middle pin to the left, and the middle pin can be inserted into the middle insertion hole.

[0012] Preferably, the rear wall of the receiving cavity is provided with a sliding groove, and a lower slider is slidably disposed in the sliding groove, the lower slider being connected to the lower moving plate.

[0013] Preferably, the rear wall of the receiving cavity is provided with a central sliding groove, and a central sliding block is provided in the central sliding groove, the central sliding block being connected to the central motion plate.

[0014] Preferably, the rear wall of the receiving cavity is provided with an upper sliding groove, and an upper slider is provided in the upper sliding groove, the upper slider being connected to the upper moving plate.

[0015] Preferably, the lower pin is interference-fitted with the lower fixing plate, and the middle pin is interference-fitted with the middle fixing plate.

[0016] Preferably, the lower pin can be interference-fitted with the lower insertion hole, and the middle pin can be interference-fitted with the middle insertion hole.

[0017] Preferably, the rear wall of the receiving cavity is provided with two bearings, and the middle rotating shaft and the upper rotating shaft are respectively connected to the inner walls of the two bearings.

[0018] The beneficial effects of this invention are as follows: In this technical solution, a placement cavity is provided within the capsule body. A chip, power supply, and locator are installed within the placement cavity. The locator can pinpoint the location of the capsule body. Multiple liquid-containing chambers are provided within the capsule body. A liquid channel is opened on the left wall of each liquid-containing chamber. A digestive fluid plug is installed within the liquid channel. A sealing plate is located on the left side of the digestive fluid plug. Initially, the sealing plate closes the digestive fluid plug. When the capsule body moves to a specific position, an external device sends a signal to the chip. The chip controls the corresponding sealing plate to open, allowing the digestive fluid to contact the digestive fluid plug. After the digestive fluid plug degrades, the digestive fluid enters the corresponding liquid-containing chamber for storage. Then, the chip controls the sealing plate to close the corresponding liquid channel. Thus, this structure positions the capsule during use. By combining active and passive sampling methods, it can achieve precise location determination and ensure a high sampling success rate. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a front cross-sectional view of the present invention;

[0021] Figure 2 for Figure 1 A magnified structural diagram of position A in the middle;

[0022] Figure 3 for Figure 1 A magnified structural diagram of position B in the middle.

[0023] In the attached diagram, 1-capsule body, 2-liquid chamber, 3-liquid channel, 4-digestive fluid plug, 5-sealing plate, 6-placement cavity, 7-chip, 8-power supply, 9-positioner, 10-acceptance cavity, 11-upper groove, 12-lower groove, 13-through hole, 14-connecting channel, 15-support rod, 16-motor, 17-lower threaded rod, 18-lower moving plate, 19-lower smooth rod, 20-lower limiting head, 21-lower connecting rod, 22-lower fixing plate. 23-Lower pin, 24-Lower push column, 25-Slide groove, 26-Middle rotating shaft, 27-Middle threaded rod, 28-Middle moving plate, 29-Middle smooth rod, 30-Middle limit head, 31-Middle connecting rod, 32-Middle fixing plate, 33-Middle pin, 34-Middle push column, 35-Lower insertion hole, 36-Upper rotating shaft, 37-Upper threaded rod, 38-Upper moving plate, 39-Upper smooth rod, 40-Upper limit head, 41-Upper connecting rod, 42-Middle insertion hole. Detailed Implementation

[0024] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0025] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0026] Example 1

[0027] like Figure 1-3 As shown, this embodiment provides an internet-based digestive tract sampling capsule, including a capsule body 1. The capsule body 1 has a placement cavity 6, and a chip 7, a power supply 8, and a locator 9 are disposed in the placement cavity 6. The power supply 8 supplies power to the chip 7 and the locator 9. The locator 9 is connected to the chip 7 and can send positioning information to the chip 7. The chip 7 can interact with external devices. The capsule body 1 has multiple liquid-containing cavities 2, which are arranged longitudinally. A liquid channel 3 is opened on the left wall of the liquid-containing cavity 2. A digestive fluid plug 4 is disposed in the liquid channel 3. A sealing plate 5 is located on the left side of the digestive fluid plug 4. The sealing plate 5 closes the liquid channel 3. The chip 7 can control the sealing plate 5 to open the liquid channel 3.

[0028] In this embodiment, a placement cavity 6 is provided inside the capsule body 1. The placement cavity 6 contains a chip 7, a power supply 8, and a locator 9. The locator 9 can locate the position of the capsule body 1. The capsule body 1 has multiple liquid-containing chambers 2. A liquid channel 3 is opened on the left wall of the liquid-containing chamber 2. A digestive fluid plug 4 is placed in the liquid channel 3. A sealing plate 5 is located on the left side of the digestive fluid plug 4. In the initial state, the sealing plate 5 closes the digestive fluid plug 4. When the capsule body 1 moves to a specific position, the external device sends a signal to the chip 7. The chip 7 controls the corresponding sealing plate 5 to open, and the digestive fluid comes into contact with the digestive fluid plug 4. After the digestive fluid plug 4 degrades, the digestive fluid enters the corresponding liquid-containing chamber 2 for storage. Then, the chip 7 controls the sealing plate 5 to close the corresponding liquid channel 3. In this way, the structure locates the position of the capsule during use. By combining active and passive sampling methods, it can achieve accurate grasp of the sampling location and ensure the success rate of sampling.

[0029] In this embodiment, the multiple digestive fluid plugs 4 can all be gastric digestive fluid plugs, all be intestinal digestive fluid plugs, or a combination of both, depending on the actual situation.

[0030] This embodiment also includes a lower motion unit, a middle motion unit, and an upper motion unit. The liquid-filling cavity 2 is configured as three. The capsule body 1 is provided with a receiving cavity 10, which is located on the right side of the liquid-filling cavity 2. The top wall of the liquid channel 3 has an upper groove 11, and the bottom wall of the liquid channel 3 has a lower groove 12. The bottom of the lower groove 12 is connected to the receiving cavity 10 through a connecting channel 14. The sealing plate 5 is slidably disposed in the lower groove 12. The sealing plate 5 has a through hole 13. The bottom wall of the sealing plate 5 is connected to a support rod 15. The receiving cavity 10 is provided with a motor 16.

[0031] The lower motion unit includes a lower threaded rod 17, a lower motion plate 18, a lower smooth rod 19, a lower limit head 20, a lower connecting rod 21, a lower fixed plate 22, a lower pin 23, and a lower push column 24. The lower threaded rod 17 is connected to the output shaft of the motor 16. The top end of the lower threaded rod 17 is connected to the lower smooth rod 19, and the top end of the lower smooth rod 19 is connected to the lower limit head 20. The lower motion plate 18 is threadedly connected to the lower threaded rod 17 and slidably connected to the rear wall of the receiving cavity 10. The lower motion plate 18 is connected to the support rod 15 corresponding to the bottom liquid-containing cavity 2 via the lower connecting rod 21. The lower fixed plate 22 is connected to the lower limit head 20. The lower pin 23 moves through the lower fixed plate 22. The right wall of the lower pin 23 is inclined downward in the direction from the right side to the left side. The lower push column 24 is connected to the lower motion plate 18.

[0032] The central motion unit includes a central rotating shaft 26, a central threaded rod 27, a central motion plate 28, a central smooth rod 29, a central limiting head 30, a central connecting rod 31, a central fixing plate 32, a central pin 33, and a central pushing column 34. The central rotating shaft 26 is rotatably disposed within the receiving cavity 10. The top end of the central rotating shaft 26 is connected to the central threaded rod 27. The top end of the central threaded rod 27 is connected to the central smooth rod 29. The top end of the central smooth rod 29 is connected to the central limiting head 30. The central motion plate 28 is threadedly connected to the central threaded rod 27. The central motion plate 28 is slidably connected to the rear wall of the receiving cavity 10. The central motion plate 28 is connected to the support rod 15 corresponding to the central liquid-containing cavity 2 via the central connecting rod 31. The central fixing plate 32 is connected to the central limiting head 30. The central pin 33 movably passes through the central fixing plate 32. The right wall of the central pin 33 is inclined downward in the direction from right to left. The central pushing column 34 is connected to the central motion plate 28. The central rotating shaft 26 has a lower insertion hole 35.

[0033] The upper motion unit includes an upper rotating shaft 36, an upper threaded rod 37, an upper motion plate 38, an upper smooth rod 39, an upper limit head 40, and an upper connecting rod 41. The upper rotating shaft 36 is rotatably disposed in the receiving cavity 10. The upper threaded rod 37 is connected to the top end of the upper rotating shaft 36. The upper smooth rod 39 is connected to the top end of the upper threaded rod 37. The upper limit head 40 is connected to the top end of the upper smooth rod 39. The upper motion plate 38 is threadedly connected to the upper threaded rod 37. The upper motion plate 38 is slidably connected to the rear wall of the receiving cavity 10. The upper motion plate 38 is connected to the support rod 15 corresponding to the liquid-containing cavity 2 at the top via the upper connecting rod 41. The upper rotating shaft 36 has a central insertion hole 42.

[0034] After the lower moving plate 18 moves upward to the designated position, the lower pushing column 24 can push the lower pin 23 to the left, and the lower pin 23 can be inserted into the lower insertion hole 35; after the middle moving plate 28 moves upward to the designated position, the middle pushing column 34 can push the middle pin 33 to the left, and the middle pin 33 can be inserted into the middle insertion hole 42.

[0035] Sampling capsules are typically for single use. Multiple motors drive the corresponding sealing plate 5 to move. Since the sampling capsule is small, the motors need to be small. Smaller motors require more precise manufacturing and are more expensive. Using multiple motors can also increase the size of the sampling capsule, which is not conducive to swallowing by patients.

[0036] In this embodiment, a lower motion unit, a middle motion unit, and an upper motion unit are provided. A motor 16 is installed in the receiving cavity 10. In the initial state, the sealing plate 5 closes the liquid channel 3. When the capsule body 1 reaches the first designated position, the motor 16 starts and drives the lower threaded rod 17 to move. The rotation of the lower threaded rod 17 drives the lower motion plate 18 to move upward. The lower motion plate 18 drives the lower connecting rod 21 to move upward, which in turn drives the corresponding support rod 15 to move upward, and drives the corresponding sealing plate 5 to move upward, so that the through hole 13 corresponds to the liquid channel 3, opening the liquid channel 3. At this time, the digestive fluid can degrade the digestive fluid plug 4 corresponding to the bottom liquid cavity 2 and enter the bottom liquid cavity 2. Then, the motor 16 is controlled to start again, so that the lower motion plate 18 rises further, driving the sealing plate 5 to continue to move upward. The through hole 13 on the bottom sealing plate 5 enters the upper groove 11 on the top wall of the bottom liquid channel 3, closing the bottom liquid channel 3 and realizing the storage of digestive fluid in the bottom liquid cavity 2.

[0037] When the lower moving plate 18 moves to the position of the lower smooth rod 19, the top wall of the lower moving plate 18 contacts the bottom wall of the lower limit head 20. At this time, the lower threaded rod 17 continues to rotate, and the lower moving plate 18 will no longer move upward. Since the upper part of the lower smooth rod 19 has threads, the lower moving plate 18 will not be damaged, ensuring the position of the corresponding sealing plate 5 and preventing leakage of the stored digestive fluid.

[0038] Here, the lower push column 24 and the lower pin 23 work together dynamically. When the lower moving plate 18 reaches the position of the lower smooth rod 19, the lower pin 23 corresponds to the lower insertion hole 35. The lower push column 24 moves upward to resist the lower pin 23 and moves to the left. The lower pin 23 enters the lower insertion hole 35, connecting the central rotating shaft 26 to the lower limit head 20. At this time, the motor 16 starts again and can drive the central rotating shaft 26 to move. When the capsule body 1 moves to the next designated position, the motor 16 starts and repeats the above operation, so that the corresponding digestive fluid enters the liquid-holding chamber 2 in the middle for storage.

[0039] The central push column 34 and the central pin 33 work together dynamically. When the central moving plate 28 moves upward to the position of the central smooth rod 29, the central pin 33 corresponds to the central insertion hole 35. The central push column 34 moves upward to resist the central pin 33 and moves to the left. The central pin 33 enters the central insertion hole 42 and connects the upper rotating shaft 36 to the central limit head 30. In this way, when the motor 16 is started again, it can drive the upper rotating shaft 36 to move. When the capsule body 1 moves to the next designated position, the motor 16 starts and repeats the above operation, so that the corresponding digestive fluid enters the upper liquid holding chamber 2 for storage.

[0040] In this way, the liquid in the liquid-containing chamber 2 is collected and stored from bottom to bottom. When the digested liquid in the lower liquid-containing chamber 2 is collected and stored, the upper liquid-containing chamber 2 is not used. When the digested liquid in the upper liquid-containing chamber 2 is collected and stored, the liquid in the lower liquid-containing chamber 2 has been collected and sealed. In this way, the collection and storage of liquid in multiple liquid-containing chambers 2 can be controlled by one motor 16, which reduces the volume occupied by the motor 16 and reduces production costs.

[0041] In this embodiment, the rear wall of the receiving cavity 10 is provided with a downward sliding groove 25, and a lower slider is slidably disposed within the downward sliding groove 25. The lower slider is connected to the lower moving plate 18. In this embodiment, the rear wall of the receiving cavity 10 is provided with a middle sliding groove, and a middle slider is disposed within the middle sliding groove. The middle slider is connected to the middle moving plate 28. In this embodiment, the rear wall of the receiving cavity 10 is provided with an upper sliding groove, and an upper slider is disposed within the upper sliding groove. The upper slider is connected to the upper moving plate 38.

[0042] In this embodiment, the lower pin 23 is interference-fitted with the lower fixing plate 22, and the middle pin 33 is interference-fitted with the middle fixing plate 32. This interference fit ensures the stability of the lower pin 23 and the middle pin 33.

[0043] In this embodiment, the lower pin 23 can be press-fitted with the lower insertion hole 35, and the middle pin 33 can be press-fitted with the middle insertion hole 42. This configuration, where the lower pin 23 and the middle pin 33 are press-fitted with the middle insertion hole 42, ensures a more secure connection during insertion.

[0044] In this embodiment, two bearings are provided on the rear wall of the receiving cavity 10, and the middle rotating shaft 26 and the upper rotating shaft 36 are respectively connected to the inner walls of the two bearings. In this way, the middle rotating shaft 26 and the upper rotating shaft 36 are rotatably disposed within the receiving cavity 10.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A digestive tract sampling capsule based on the Internet, characterized in that, The capsule body (1) includes a placement cavity (6) and a chip (7), a power supply (8) and a locator (9) are provided in the placement cavity (6). The power supply (8) supplies power to the chip (7) and the locator (9). The locator (9) is connected to the chip (7) and can send positioning information to the chip (7). The chip (7) can interact with external devices. The capsule body (1) has multiple liquid-filling cavities (2) arranged longitudinally. A liquid channel (3) is opened on the left wall of the liquid-filling cavity (2). A digestive fluid plug (4) is provided in the liquid channel (3). A sealing plate (5) is provided on the left side of the digestive fluid plug (4). The sealing plate (5) closes the liquid channel (3). The chip (7) can control the sealing plate (5) to open the liquid channel (3). It also includes a lower motion unit, a middle motion unit and an upper motion unit. The liquid-filling cavity (2) is set to three. The capsule body (1) is provided with a receiving cavity (10). The receiving cavity (10) is located on the right side of the liquid-filling cavity (2). The top wall of the liquid channel (3) has an upper groove (11) and the bottom wall of the liquid channel (3) has a lower groove (12). The bottom of the lower groove (12) is connected to the receiving cavity (10) through a connecting channel (14). The sealing plate (5) is slidably set in the lower groove (12). The sealing plate (5) has a through hole (13). The bottom wall of the sealing plate (5) is connected to a support rod (15). The receiving cavity (10) is provided with a motor (16). The lower motion unit includes a lower threaded rod (17), a lower motion plate (18), a lower smooth rod (19), a lower limit head (20), a lower connecting rod (21), a lower fixing plate (22), a lower pin (23), and a lower push column (24). The lower threaded rod (17) is connected to the output shaft of the motor (16). The top end of the lower threaded rod (17) is connected to the lower smooth rod (19), and the top end of the lower smooth rod (19) is connected to the lower limit head (20). The lower motion plate (18) is connected to the lower threaded rod (19). 17) Threaded connection, the lower moving plate (18) is slidably connected to the rear wall of the receiving cavity (10), the lower moving plate (18) is connected to the support rod (15) corresponding to the bottom liquid-containing cavity (2) via the lower connecting rod (21), the lower limit head (20) is connected to the lower fixed plate (22), the lower pin (23) moves through the lower fixed plate (22), the right wall of the lower pin (23) is inclined downward in the direction from the right side to the left side, and the lower moving plate (18) is connected to the lower push column (24); The central motion unit includes a central rotating shaft (26), a central threaded rod (27), a central motion plate (28), a central smooth rod (29), a central limiting head (30), a central connecting rod (31), a central fixing plate (32), a central pin (33), and a central pushing column (34). The central rotating shaft (26) is rotatably disposed within the receiving cavity (10). The top end of the central rotating shaft (26) is connected to the central threaded rod (27), the top end of the central threaded rod (27) is connected to the central smooth rod (29), the top end of the central smooth rod (29) is connected to the central limiting head (30), and the central motion plate (28)... The middle threaded rod (27) is threadedly connected to the middle moving plate (28), which is slidably connected to the rear wall of the receiving cavity (10). The middle moving plate (28) is connected to the support rod (15) corresponding to the middle liquid-containing cavity (2) via the middle connecting rod (31). The middle limiting head (30) is connected to the middle fixing plate (32). The middle pin (33) moves through the middle fixing plate (32). The right wall of the middle pin (33) is inclined downward in the direction from the right side to the left side. The middle moving plate (28) is connected to the middle pushing column (34). The middle rotating shaft (26) has a lower insertion hole (35). The upper motion unit includes an upper rotating shaft (36), an upper threaded rod (37), an upper motion plate (38), an upper smooth rod (39), an upper limit head (40), and an upper connecting rod (41). The upper rotating shaft (36) is rotatably disposed in the receiving cavity (10). The upper threaded rod (37) is connected to the top end of the upper rotating shaft (36). The upper smooth rod (39) is connected to the top end of the upper threaded rod (37). The upper limit head (40) is connected to the top end of the upper smooth rod (39). The upper motion plate (38) is threadedly connected to the upper threaded rod (37). The upper motion plate (38) is slidably connected to the rear wall of the receiving cavity (10). The upper motion plate (38) is connected to the support rod (15) corresponding to the liquid-filling cavity (2) above via the upper connecting rod (41). The upper rotating shaft (36) has a central insertion hole (42). After the lower moving plate (18) moves upward to the designated position, the lower pushing column (24) can push the lower pin (23) to the left, and the lower pin (23) can be inserted into the lower insertion hole (35); after the middle moving plate (28) moves upward to the designated position, the middle pushing column (34) can push the middle pin (33) to the left, and the middle pin (33) can be inserted into the middle insertion hole (42).

2. The digestive tract sampling capsule based on the Internet according to claim 1, characterized in that, The rear wall of the receiving cavity (10) is provided with a sliding groove (25), and a sliding block is slidably disposed in the sliding groove (25), and the sliding block is connected to the lower moving plate (18).

3. The digestive tract sampling capsule based on the Internet according to claim 1, characterized in that, The rear wall of the receiving cavity (10) is provided with a central sliding groove, and a central sliding block is provided in the central sliding groove. The central sliding block is connected to the central motion plate (28).

4. The digestive tract sampling capsule based on the Internet according to claim 1, characterized in that, The rear wall of the receiving cavity (10) is provided with an upper sliding groove, and an upper slider is provided in the upper sliding groove. The upper slider is connected to the upper moving plate (38).

5. The digestive tract sampling capsule based on the Internet according to claim 1, characterized in that, The lower pin (23) is interference-fitted with the lower fixing plate (22), and the middle pin (33) is interference-fitted with the middle fixing plate (32).

6. The digestive tract sampling capsule based on the Internet according to claim 1, characterized in that, The lower pin (23) can be interference-fitted with the lower insertion hole (35), and the middle pin (33) can be interference-fitted with the middle insertion hole (42).

7. The Internet-based digestive tract sampling capsule according to claim 1, characterized in that, The rear wall of the receiving cavity (10) is provided with two bearings, and the middle rotating shaft (26) and the upper rotating shaft (36) are respectively connected to the inner walls of the two bearings.

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