Digestive tract sampling capsule

Abstract

A digestive tract sampling capsule comprises a shell, the shell is divided into an upper shell body and a lower shell body, and the lower shell body is detachably installed at the lower end of the upper shell body; the sampling assembly is mounted on the inner side of the lower shell; the shielding assembly is mounted at the bottom of the upper shell; according to the technical scheme, the multiple sampling assemblies are installed in the lower shell and used for sampling alimentary canal liquid at multiple parts; the shielding assembly is matched, the dissolving piece is exposed through the sampling window at a specific part, then the dissolving piece is dissolved at the specific part, and then sampling is completed through the sampling pipe; moreover, by virtue of the shielding assembly, a proper sampling opportunity can be selected, so that the sampling failure caused by insufficient liquid sampling due to the fact that the sampling pipe sucks a large amount of gas is avoided.

Description

Technical Field

[0001] The invention relates to a sampling device, in particular to a digestive tract sampling capsule. Background Art

[0002] Due to its high reliability and high safety, the digestive tract sampling capsule has become an effective device for diagnosing digestive tract diseases and has been highly recognized in the international medical device field. The digestive tract sampling capsule has a camera unit, a data processing unit, and a wireless transmission unit. When swallowed by the subject, it can take pictures of organs such as the stomach or intestines during the process of passing through the digestive tract system, and send the photographed information to an external receiving device through wireless transmission. The information is received by the external receiving device and then displayed on the display device. In the painless and non-traumatic state of human gastrointestinal peristalsis, medical staff can diagnose gastrointestinal diseases in the subject based on the image displayed on the display device. The digestive tract sampling capsule can also collect liquid samples from organs such as the stomach or intestines for subsequent testing, thereby diagnosing gastrointestinal diseases in the subject.

[0003] The sampling capsules currently used use some special materials to seal the negative pressure sampling tube inside the capsule. In a specific digestive fluid, these materials degrade, thereby sucking foreign substances into the negative pressure sampling tube to complete the sampling. This design uses degradable materials as sampling triggers. However, during the sampling process, the sampling tube is very likely to inhale gas, resulting in insufficient sampling liquid and sampling failure; and only liquid in a certain position can be sampled. When liquid in different parts needs to be collected, multiple sampling capsules are required.

[0004] In response to the above problems, we provide a digestive tract sampling capsule. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a digestive tract sampling capsule.

[0006] The object of the present invention is achieved as follows: a digestive tract sampling capsule comprises a shell, the shell is divided into an upper shell and a lower shell, and the lower end of the upper shell is detachably mounted on the lower shell;

[0007] A sampling assembly is installed inside the lower shell;

[0008] A shielding component is installed at the bottom of the upper shell.

[0009] Furthermore, a connecting assembly is provided between the upper shell and the lower shell.

[0010] Furthermore, the connecting assembly includes a connecting seat, a connecting rod, and a plug-in seat. A plurality of the connecting seats are arranged at equal intervals on the side wall of the inner cavity of the lower shell body, the connecting rod is arranged on the outer side of the connecting seat, the upper end of the connecting rod extends to the interior of the upper shell body, and a plurality of the plug-in seats are arranged at equal intervals on the side wall of the inner cavity of the upper shell body. The plug-in seats correspond to the connecting seats one by one, the plug-in seat is adapted to the connecting rod, and the upper end of the connecting rod can be detachably inserted into the plug-in seat.

[0011] Furthermore, the sampling assembly includes a connecting plate, a dissolving sheet, a connecting tube, a fixing frame, and a sampling tube. A plurality of connecting grooves are evenly spaced on the top of the lower shell body, a connecting plate is installed in the connecting groove, a connecting hole is opened in the middle of the connecting plate, a dissolving sheet is installed in the connecting hole, the rear side of the connecting hole is fixedly connected to the connecting tube, the fixing frame is provided on the side wall of the inner cavity of the lower shell body, the sampling tube is clamped on the inner side of the fixing frame, the top end of the sampling tube is detachably connected to the connecting tube, and the sampling tube is in a negative pressure state.

[0012] Furthermore, a negative pressure component is installed on one side of the sampling tube.

[0013] Furthermore, the negative pressure component includes a negative pressure airbag, an extrusion piece, and a mounting tube. The outer side of the sampling tube is connected to the mounting tube, and the other end of the mounting tube is connected to the negative pressure airbag. The extrusion piece is bonded to the outer side of the negative pressure airbag.

[0014] Furthermore, the extrusion member includes an extrusion plate and an extrusion rod, the extrusion plates are bonded to two sides of the negative pressure airbag, and the outer sides of the two extrusion plates are connected to the extrusion rod.

[0015] Furthermore, the shielding assembly includes a motor plate, an electric motor, a gear, a shielding ring, and a rack. The motor plate is arranged on the side wall of the inner cavity of the upper shell, the electric motor is installed below the motor plate, the gear is arranged on the output end of the motor, the lower end of the upper shell is rotatably connected to the shielding ring, a sampling window is opened through the side wall of the shielding ring, the size of the sampling window is adapted to the connecting plate, the rack is arranged on the inner side of the shielding ring, and the rack is meshed with the gear for transmission.

[0016] Furthermore, a digestive tract sampling capsule also includes a clamping component installed inside the upper shell.

[0017] Furthermore, the clamping assembly includes a clamping push rod, a clamping seat, a push rod, a clamping push rod, a clamping connecting rod, a sliding seat, a linkage rod, a rotating seat, a rotating shaft, and a mounting rod. The clamping push rod is installed in the middle part of the inner cavity of the upper shell body, the clamping seat is arranged at the output end of the clamping push rod, a plurality of push rods are arranged at the bottom end of the clamping seat, the clamping push rod is installed at one end of the push rod, a plurality of groups of clamping connecting rods are rotatably connected to the rotating shaft, and each group of clamping connecting rods includes an even number of clamping connecting rods. The sliding seat is slidably connected to the inner side of the rear end of the clamping connecting rod, the linkage rod is rotatably connected to the inner side of the sliding seat, and the other ends of a plurality of linkage rods are rotatably connected to the rotating seat, the output end of the clamping push rod is fixedly connected to the rotating base, the mounting rod is arranged between the top end of the rotating shaft and the clamping seat, the mounting rod is rotatably connected to the rotating shaft, and is fixedly connected to the clamping seat.

[0018] Furthermore, the front end of the clamping connecting rod is an arc-shaped structure, which is compatible with the outer wall of the sampling tube.

[0019] Furthermore, a disassembly assembly is provided at the bottom end of the connecting tube, and the disassembly assembly corresponds one-to-one to the sampling tube.

[0020] Furthermore, a solenoid valve is installed between the connecting pipe and the sampling pipe, and the solenoid valve and the sampling pipe are connected via a pipeline.

[0021] Furthermore, the disassembly assembly includes a snap-fit ​​part, a disassembly push rod, and a disassembly base. The snap-fit ​​part is snapped onto the outer side of the solenoid valve, and the snap-fit ​​part is fixedly connected to the output end of the disassembly push rod. The disassembly base is installed on the side wall of the inner cavity of the lower shell, and the disassembly push rod is installed on the outer side of the disassembly base.

[0022] Advantages of the present invention:

[0023] The technical solution of the present application is to sample digestive tract fluids at multiple locations by installing a number of sampling components inside the lower shell. In conjunction with the shielding component, a dissolving sheet is exposed through a sampling window at a specific location, and then the dissolving sheet is dissolved at the specific location, and then sampling is completed through a sampling tube; and through the shielding component, a suitable sampling time can be selected, thereby avoiding the sampling tube from inhaling a large amount of gas, resulting in insufficient liquid sampling and causing sampling failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a digestive tract sampling capsule.

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of a digestive tract sampling capsule.

[0026] Figure 3 Schematic diagram of the gripping component structure Figure 1 .

[0027] Figure 4 Schematic diagram of the gripping component structure Figure 2 .

[0028] Figure 5 This is an enlarged schematic diagram of point A.

[0029] Figure 6 Schematic diagram of the sampling component, negative pressure component, and disassembly component structure Figure 1 .

[0030] Figure 7 Schematic diagram of the sampling component, negative pressure component, and disassembly component structure Figure 2 .

[0031] Figure 8 Schematic diagram of the cross-sectional structure of the shielding component.

[0032] In the figure: 1. housing, 11. upper housing, 12. lower housing, 121. connecting groove;

[0033] 2. Connecting assembly, 21. Connecting seat, 22. Connecting rod, 23. Connecting seat;

[0034] 3. Sampling assembly, 31. Connecting plate, 311. Connecting hole, 32. Dissolving sheet, 33. Connecting tube, 34. Fixing frame, 35. Sampling tube;

[0035] 4. Negative pressure assembly, 41. Negative pressure airbag, 42. Extrusion piece, 421. Extrusion plate, 422. Extrusion rod, 43. Mounting tube;

[0036] 5. shielding assembly, 51. motor plate, 52. motor, 53. gear, 54. shielding ring, 55. rack;

[0037] 6. Clamping assembly, 61. Clamping push rod, 62. Clamping seat, 63. Push rod, 64. Clamping push rod, 65. Clamping connecting rod, 66. Sliding seat, 67. Linkage rod, 68. Rotating seat, 69. Rotating shaft, 610. Mounting rod;

[0038] 7. Solenoid valve;

[0039] 8. Remove the assembly, 81. Remove the fastener, 82. Remove the push rod, 83. Remove the base. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0041] An embodiment of the present application provides a digestive tract sampling capsule.

[0042] Embodiment 1, as Figure 1-8 shown.

[0043] A digestive tract sampling capsule includes a shell 1, the shell 1 is a hollow capsule-shaped structure, the shell 1 is divided into an upper shell 11 and a lower shell 12, the lower end of the upper shell 11 is detachably mounted with the lower shell 12. The upper shell 11 and the lower shell 12 are detachably connected.

[0044] A connecting assembly 2 is disposed between the upper shell 11 and the lower shell 12 to connect the upper shell 11 and the lower shell 12 .

[0045] The connection assembly 2 includes a connection seat 21, a connection rod 22, and a plug seat 23. A plurality of connection seats 21 are arranged at equal intervals on the inner side wall of the lower shell 12. The connection rod 22 is arranged outside the connection seat 21. The upper end of the connection rod 22 extends into the interior of the upper shell 11. A plurality of plug seats 23 are arranged at equal intervals on the inner side wall of the upper shell 11. The plug seats 23 correspond to the connection seats 21 one by one. The plug seats 23 are adapted to the connection rod 22. The upper end of the connection rod 22 can be detachably inserted into the plug seat 23. When in use, the plug seat 23 on the inner side of the upper shell 11 only needs to be aligned with the connection rod 22.

[0046] A digestive tract sampling capsule comprises a sampling assembly 3 installed inside the lower shell 12 for sampling liquid in the digestive tract.

[0047] The sampling assembly 3 includes a connecting plate 31, a dissolving sheet 32, a connecting tube 33, a fixing frame 34, and a sampling tube 35. The top of the lower shell 12 is provided with a plurality of connecting grooves 121 at equal intervals. The connecting groove 121 is provided with a connecting plate 31. The middle of the connecting plate 31 is provided with a connecting hole 311. The dissolving sheet 32 ​​is installed in the connecting hole 311. The rear side of the connecting hole 311 is fixedly connected to the connecting tube 33. The fixing frame 34 is provided on the inner side of the lower shell 12. The sampling tube 35 is clamped on the inner side of the fixing frame 34. The top of the sampling tube 35 is detachably connected to the connecting tube 33, that is, the sampling tube 35 is plugged into the top of the connecting tube 33. The sampling tube 35 is in a negative pressure state. The dissolving sheet 32 ​​is made of a specific material. In a specific digestive fluid, the dissolving sheet 32 ​​degrades, thereby sucking foreign substances into the sampling tube 35 through the connecting tube 33 to complete the sampling of the digestive tract fluid.

[0048] The sampling components 3 are provided in plurality, and the dissolving sheets 32 made of different materials can be used for different parts, so that the digestive tract fluids in different parts can be sampled.

[0049] A negative pressure assembly 4 is installed on one side of the sampling tube 35 to further increase the success rate of sampling.

[0050] The negative pressure assembly 4 includes a negative pressure airbag 41, an extrusion piece 42, and a mounting tube 43. The outside of the sampling tube 35 is connected to the mounting tube 43, and the other end of the mounting tube 43 is connected to the negative pressure airbag 41. The extrusion piece 42 is bonded to the outside of the negative pressure airbag 41. When the dissolving sheet 32 ​​dissolves, the external substance, i.e., gas or liquid, enters the sampling tube 35 through the connecting tube 33, and the negative pressure airbag 41 further increases the suction force of the sampling tube 35 and the number of samples. In addition, through the design of the negative pressure assembly 4, the gas enters the negative pressure airbag 41 first, while the liquid flows to the bottom of the sampling tube 35 due to gravity and other reasons, so that the liquid can be discharged more conveniently during subsequent detection. When discharging the liquid, it is only necessary to squeeze the extrusion piece 42 to discharge the sampled liquid from the sampling tube 35 through pressure.

[0051] The extrusion member 42 includes an extrusion plate 421 and an extrusion rod 422. The extrusion plates 421 are bonded to both sides of the negative pressure airbag 41, and the outer sides of the two extrusion plates 421 are connected to the extrusion rod 422. The design of the extrusion plate 421 increases the contact area with the negative pressure airbag 41, and the sampled liquid can be discharged more conveniently.

[0052] A digestive tract sampling capsule includes a shielding component 5 installed at the bottom of the upper shell 11. The dissolving sheet 32 ​​can be exposed at an appropriate time to sample the digestive tract fluid.

[0053] The shielding assembly 5 includes a motor plate 51, a motor 52, a gear 53, a shielding ring 54, and a rack 55. The motor plate 51 is arranged on the side wall of the inner cavity of the upper shell 11, the motor 52 is installed below the motor plate 51, the gear 53 is arranged at the output end of the motor 52, the lower end of the upper shell 11 is rotatably connected to the shielding ring 54, a sampling window is opened through the side wall of the shielding ring 54, the size of the sampling window is adapted to the connecting plate 31, the rack 55 is arranged inside the shielding ring 54, and the rack 55 is meshed with the gear 53 for transmission. The motor 52 is started, and the shielding ring 54 is driven to rotate through the meshing of the gear 53 and the rack 55, so that the sampling window is aligned with the dissolving sheet 32 ​​at different positions, or each dissolving sheet 32 ​​is shielded. In this way, active control of the sampling timing is realized, so that a large amount of gas is prevented from being sucked into the sampling tube 35 due to the wrong sampling timing, resulting in sampling failure.

[0054] A digestive tract sampling capsule further includes a clamping assembly 6 installed inside the upper shell 11. The sampling tube 35 is taken out by the clamping assembly 6. Due to the small size of the capsule, it is not easy to take out the multiple sampling tubes 35 from the lower shell 12.

[0055] The clamping assembly 6 includes a clamping push rod 61 , a clamping seat 62 , a push rod 63 , a clamping push rod 64 , a clamping connecting rod 65 , a sliding seat 66 , a linkage rod 67 , a rotating seat 68 , a rotating shaft 69 , and a mounting rod 610 . The clamping push rod 61 is installed in the middle part of the inner cavity of the upper shell 11, and the clamping push rod 61 is an electric push rod that can be extended or retracted. The clamping seat 62 is arranged at the output end of the clamping push rod 61, and a plurality of push rods 63 are arranged at the bottom end of the clamping seat 62, each push rod 63 corresponds to a sampling tube 35, and the clamping push rod 64 is installed at one end of the push rod 63, and the clamping push rod 64 is an electric push rod that can be extended or retracted. A plurality of groups of the clamping connecting rods 65 are rotatably connected on the rotating shaft 69, and each group of the clamping connecting rods 65 includes an even number of clamping connecting rods 65. The inner side of the rear end of the clamping connecting rod 65 is slidably connected to the sliding seat 66, and the inner side of the sliding seat 66 is rotatably connected to the linkage rod 67, and the other ends of the plurality of linkage rods 67 are rotatably connected to the rotating seat 68. The output end of the clamping push rod 64 is fixedly connected to the rotating base, and the mounting rod 610 is arranged between the top end of the rotating shaft 69 and the clamping seat 62. The mounting rod is rotatably connected to the rotating shaft and fixedly connected to the clamping seat. The clamping assembly 6 is located directly above the sampling tube 35. When the sampling tube 35 needs to be clamped, the clamping push rod 61 extends to drive the clamping push rod 64 to move to the upper outer side of each sampling tube 35, and then the clamping push rod 64 extends to drive the rotating seat 68 through the linkage rod 67 to move to the rear end of the clamping push rod 64, thereby opening the rear end of the clamping push rod 64, and then causing the front end of the clamping push rod 64 to rotate inward to clamp the sampling tube 35. At this time, when the upper shell 11 is removed, several sampling tubes 35 can be driven to be taken out from the lower shell 12. The front end of the clamping connecting rod 65 is an arc structure, which is adapted to the outer wall of the sampling tube 35, so that the clamping of the sampling tube 35 is more reliable.

[0056] The bottom end of the connecting pipe 33 is provided with a disassembly assembly 8, and the disassembly assembly 8 corresponds to the sampling pipe 35 one by one, so as to avoid interference caused by the removal of the sampling pipe 35 by various pipelines.

[0057] A solenoid valve 7 is installed between the connecting pipe 33 and the sampling pipe 35, and the solenoid valve 7 is connected to the sampling pipe 35 through a pipeline. When sampling is to be performed on the sampling pipe 35, the solenoid valve 7 is opened, and after the sampling is completed, the solenoid valve 7 is closed.

[0058] The disassembly assembly 8 includes a snap-fitting part 81, a disassembly push rod 82, and a disassembly base 83. The snap-fitting part 81 is snap-fitted to the outer side of the solenoid valve 7. The snap-fitting part 81 is fixedly connected to the output end of the disassembly push rod 82. The disassembly base 83 is installed on the inner cavity side wall of the lower shell 12, and the disassembly push rod 82 is installed on the outer side of the disassembly base 83. The disassembly push rod 82 is an electric push rod that can be extended or retracted. When the sampling tube 35 needs to be taken out, the disassembly assembly 8 is started, and the snap-fitting part 81 is driven by the disassembly push rod 82 to pull the solenoid valve 7 backward, thereby pulling open the pipe connected to the sampling tube 35, so that the pipe is disconnected from the sampling tube 35. Then, the sampling tube 35 is taken out through the clamping assembly 6.

[0059] The housing 1 is provided with a sensor and a communication module, which facilitates external positioning of the specific position of the capsule when the patient swallows the capsule. At the same time, the housing 1 is also provided with a magnetic module, which facilitates the capsule to rotate, move, etc. under the action of an external magnetic field.

[0060] When the present invention is used:

[0061] The patient swallows the capsule, which moves along the patient's digestive tract.

[0062] At this time, choose a suitable location for liquid sampling based on the patient's actual situation.

[0063] During sampling, the electromagnetic valve is opened, the shield is started, that is, the motor is started, and the shield ring is driven to rotate through the meshing of the gear and the rack, so that the sampling window is aligned with the dissolving sheet at a specific position. When the dissolving sheet is degraded under the action of the digestive tract fluid, foreign substances are sucked into the sampling tube through the connecting tube, completing the sampling of the digestive tract fluid.

[0064] After sampling of each part is completed, until the capsule is discharged from the human body. Start the disassembly assembly and the clamping assembly. When the disassembly assembly is started, the clamping push rod drives the snap-on part to pull the solenoid valve backward, thereby pulling open the pipe connected to the sampling tube, so that the pipe is disconnected from the sampling tube. When the clamping assembly is started, the clamping push rod extends, driving the clamping push rod to move to the outer side of the upper part of each sampling tube, and then the clamping push rod extends, driving the rotating seat through the linkage rod, and moves toward the rear end of the clamping push rod, thereby expanding the rear end of the clamping push rod, thereby causing the front end of the clamping push rod to rotate inward to clamp the sampling tube. At this time, when the upper shell is removed, several sampling tubes can be driven to be taken out of the lower shell.

[0065] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] Those skilled in the art will easily think of other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the claims. It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is limited only by the attached claims.

Claims

1. A digestive tract sampling capsule, characterized in that: It comprises a shell, the shell is divided into an upper shell and a lower shell, and the lower end of the upper shell is detachably mounted on the lower shell; A sampling assembly is installed inside the lower shell; A shielding component is installed at the bottom of the upper shell.

2. A digestive tract sampling capsule according to claim 1, characterized in that: A connecting assembly is arranged between the upper shell and the lower shell.

3. A digestive tract sampling capsule according to claim 2, characterized in that: The connecting assembly includes a connecting seat, a connecting rod, and a plug-in seat. A plurality of the connecting seats are arranged at equal intervals on the side wall of the inner cavity of the lower shell body, the connecting rod is arranged on the outer side of the connecting seat, the upper end of the connecting rod extends to the interior of the upper shell body, and a plurality of the plug-in seats are arranged at equal intervals on the side wall of the inner cavity of the upper shell body. The plug-in seats correspond to the connecting seats one by one, the plug-in seat is adapted to the connecting rod, and the upper end of the connecting rod can be detachably inserted into the plug-in seat.

4. A digestive tract sampling capsule according to claim 1, characterized in that: The sampling assembly includes a connecting plate, a dissolving sheet, a connecting tube, a fixing frame, and a sampling tube. A plurality of connecting grooves are evenly spaced on the top of the lower shell body, a connecting plate is installed in the connecting groove, a connecting hole is provided in the middle of the connecting plate, a dissolving sheet is installed in the connecting hole, the rear side of the connecting hole is fixedly connected to the connecting tube, the fixing frame is provided on the side wall of the inner cavity of the lower shell body, the sampling tube is clamped on the inner side of the fixing frame, the top end of the sampling tube is detachably connected to the connecting tube, and the sampling tube is in a negative pressure state.

5. A digestive tract sampling capsule according to claim 4, characterized in that: A negative pressure component is installed on one side of the sampling tube.

6. A digestive tract sampling capsule according to claim 5, characterized in that: The negative pressure component includes a negative pressure airbag, an extrusion piece, and a mounting tube. The outer side of the sampling tube is connected to the mounting tube, and the other end of the mounting tube is connected to the negative pressure airbag. The extrusion piece is bonded to the outer side of the negative pressure airbag.

7. A digestive tract sampling capsule according to claim 6, characterized in that: The extrusion piece comprises an extrusion plate and an extrusion rod. The two sides of the negative pressure airbag are bonded with the extrusion plates, and the outer sides of the two extrusion plates are connected with the extrusion rod.

8. The digestive tract sampling capsule according to claim 1, characterized in that: The shielding assembly includes a motor plate, an electric motor, a gear, a shielding ring, and a rack. The motor plate is arranged on the side wall of the inner cavity of the upper shell, the electric motor is installed below the motor plate, the gear is arranged on the output end of the motor, the lower end of the upper shell is rotatably connected to the shielding ring, a sampling window is opened through the side wall of the shielding ring, the size of the sampling window is adapted to the connecting plate, the rack is arranged on the inner side of the shielding ring, and the rack is meshed with the gear for transmission.

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