CN111700648A - Liquid taking capsule, liquid taking system and capsule liquid taking method - Google Patents
Liquid taking capsule, liquid taking system and capsule liquid taking method Download PDFInfo
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- CN111700648A CN111700648A CN202010693219.XA CN202010693219A CN111700648A CN 111700648 A CN111700648 A CN 111700648A CN 202010693219 A CN202010693219 A CN 202010693219A CN 111700648 A CN111700648 A CN 111700648A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/0096—Casings for storing test samples
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/361—Image-producing devices, e.g. surgical cameras
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
- A61B2010/0061—Alimentary tract secretions, e.g. biliary, gastric, intestinal, pancreatic secretions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B2010/009—Various features of diagnostic instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
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Abstract
The application provides a get liquid capsule and have its get liquid system, this capsule includes capsule shell, wireless transmission module, trigger device and processing module, and wireless transmission module, trigger device and processing module all set up in the capsule shell. The capsule shell is formed with a first containing part, a liquid inlet is formed on the side wall of the first containing part, and a sealing elastic sheet is plugged on the liquid inlet. The wireless transmission module receives an external liquid taking command and transmits the command to the processing module, the processing module controls the trigger device to execute liquid taking operation according to the liquid taking command, the trigger device reduces air pressure in the first accommodating part so that the first accommodating part and the external environment form pressure difference, and the air pressure difference pushes the sealing elastic sheet to open the liquid inlet so that the first accommodating part is communicated with the cavity environment. The capsule can be used for easily and accurately extracting liquid from the cavity.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a liquid taking capsule, a liquid taking system and a capsule liquid taking method.
Background
Gastrointestinal diseases are common diseases, and when the gastrointestinal diseases are diagnosed, liquid in the intestines and the stomach needs to be taken out to be analyzed so as to determine a diagnosis and treatment scheme. In the prior art, the extraction of the gastric juice or the gastrointestinal tissue is generally performed by inserting the endoscope into the body of a subject through a catheter. The operation of inserting the catheter endoscope into the body of the examined person is difficult, so that the operation personnel has higher requirements. When the method is operated improperly, serious discomfort of the examinee can be caused, physiological reaction of the examinee is caused, and sampling operation is further influenced. Further, the catheter endoscope cannot reach a deeper part such as the small intestine, and detection of a disease is greatly restricted.
Disclosure of Invention
The invention aims to provide a liquid taking capsule and a liquid taking system with the same.
The invention provides a liquid taking capsule which comprises a capsule shell, a wireless transmission module, a trigger device and a processing module, wherein the wireless transmission module, the trigger device and the processing module are all arranged in the capsule shell, the capsule shell is provided with a first accommodating part, a liquid inlet is formed in the side wall of the first accommodating part, a sealing elastic sheet is sealed at the liquid inlet, the wireless transmission module receives an external liquid taking command and transmits the command to the processing module, the processing module controls the trigger device to execute liquid taking operation according to the liquid taking command, the trigger device reduces the air pressure in the first accommodating part so as to enable the first accommodating part and a cavity environment to form pressure difference, and the pressure difference pushes the sealing elastic sheet to open the liquid inlet so as to enable the first accommodating part to be communicated with the cavity environment.
Further, the capsule shell is also provided with a second containing part, a diaphragm is arranged between the first containing part and the second containing part, and the diaphragm separates the first containing part and the second containing part; when liquid is not taken, the air pressure of the second accommodating part and the average air pressure of the first accommodating part and the second accommodating part are both smaller than the air pressure in the cavity, and the triggering device is communicated with the second accommodating part and the first accommodating part after receiving the liquid taking command, so that the pressure of the first accommodating part is smaller than the pressure of the environment of the cavity.
Furthermore, the trigger device comprises a fixed seat, a solid hot melt object heated and melted, a heating wire and an elastic element; the solid hot melt is arranged in the fixed seat, and the heating wire is electrically connected with the processing module; the elastic piece is fixedly sealed in the solid hot melt, the elastic piece is in a compressed state, and the elastic recovery direction of the elastic piece is arranged towards the diaphragm; the elastic component orientation the one end of diaphragm is provided with the needle body, works as processing module receives and gets behind the liquid order, and the control heating wire is right solid-state hot melt thing heating, solid-state hot melt thing melts the back, the elastic component replies and drives the needle body punctures the diaphragm makes first portion of holding with the intercommunication of second portion of holding.
Further, trigger device includes the solid-state hot melt thing of heating melting and the heater strip with the contact of solid-state hot melt thing, be provided with the intercommunication on the diaphragm first container with the intercommunicating pore of second container, the shutoff of solid-state hot melt thing in the intercommunicating pore, the heater strip with processing module electrical property links to each other, processing module receives and gets after the liquid order, controls the heater strip is right the heating of solid-state hot melt thing, the melting of solid-state hot melt thing makes first container with the second container communicates.
Further, still be formed with the second portion of holding in the capsule shell, first portion of holding with be provided with the diaphragm between the second portion of holding, trigger device includes fixing base, the solid-state hot melt thing of heating melting, heater strip and elastic component, solid-state hot melt thing set up in the fixing base, the heater strip with processing module electrical property links to each other, the elastic component is in deformation state seal admittedly in the solid-state hot melt thing, works as processing module receives and gets behind the liquid order, controls the heater strip is right the heating of solid-state hot melt thing, after the solid-state hot melt thing melts, the elastic component replies and drives the diaphragm is in order to enlarge volume in the first portion of holding.
Further, the trigger device is arranged in the first accommodating part, and the elastic element is in a compressed state and is fixedly sealed in the solid hot melt.
Further, the trigger device is arranged in the second accommodating part, the elastic part is connected with the diaphragm, and the elastic part is in a stretching state and is fixedly sealed in the solid hot melt.
Further, the melting point of the solid hot melt is 45-55 ℃.
Further, the solid hot melt is paraffin.
Further, the position detection module is an optical imaging system, and a transparent layer is formed on the capsule shell corresponding to a lens of the optical imaging system.
Further, the liquid inlet is positioned outside the shooting visual angle of the lens.
Further, a liquid absorbing device is also provided in the first housing section.
A liquid taking system comprises the liquid taking capsule and a control module, wherein the control module receives a position signal sent by the liquid taking capsule and sends a liquid taking command to the liquid taking capsule.
When the liquid taking capsule reaches a liquid taking position, the control module sends a liquid taking command to the liquid taking capsule;
the wireless transmission module of the liquid taking capsule receives the liquid taking command and sends the liquid taking command to the processing module;
the processing module controls the trigger device to reduce the air pressure of the first accommodating part until the air pressure of the first accommodating part is smaller than the pressure of the cavity environment, so that a pressure difference is formed;
the sealing elastic sheet is separated from the liquid inlet under the action of pressure difference to open the liquid inlet, so that the first accommodating part is communicated with the cavity environment through the liquid inlet.
In summary, in the present invention, through the arrangement of the trigger device, an air pressure difference is formed between the inside and the outside of the first accommodating portion, so that the sealing elastic sheet opens the liquid inlet, and the liquid can be taken out. After the liquid is taken, the liquid inlet is closed again by the sealing elastic sheet because no air pressure difference exists or the air pressure difference is reduced, and the external liquid is prevented from entering again. The liquid taking capsule can easily and accurately take liquid from a preset position in the cavity after reaching the preset position.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic cross-sectional structure view of a liquid-extracting capsule according to a first embodiment of the present invention.
Fig. 2 is a system block diagram of a liquid-extracting capsule according to a first embodiment of the present invention.
Fig. 3 is a schematic structural view of a liquid-extracting capsule trigger device and a diaphragm according to a second embodiment of the present invention.
Fig. 4 is a schematic structural view of a liquid-extracting capsule trigger device and a diaphragm according to a third embodiment of the present invention.
Fig. 5 is a system block diagram of a liquid extraction system according to an embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
The invention aims to provide a liquid taking capsule and a liquid taking system with the same. The cavity is a sealed space body with certain pressure, and fluid (liquid and/or gas) is contained in the cavity. The environment inside the chamber (i.e., the chamber environment) may be a gas environment or a liquid environment. After the liquid-taking capsule enters the cavity, the liquid-taking capsule is in a gas environment and in a liquid environment but is not in liquid taking, under the combined action of the internal pressure of the liquid-taking capsule, the pretightening force of the sealing elastic sheet 112 and the environmental pressure of the cavity, the sealing elastic sheet 112 seals the liquid inlet 111, so that liquid and/or gas are prevented from entering the liquid-taking capsule. And after the liquid taking capsule moves to reach the liquid taking level, the liquid taking capsule is in a liquid environment and performs liquid taking operation. Under the combined action of the internal pressure of the liquid taking capsule, the pretightening force of the sealing elastic sheet 112 and the environmental pressure of the cavity, the sealing elastic sheet 112 is separated from the liquid inlet 111, so that liquid enters the liquid taking capsule. After the liquid-taking capsule finishes the liquid-taking operation, the cavity environment may be a liquid environment or a gas environment, but under the combined action of the internal pressure of the liquid-taking capsule, the pretightening force of the sealing elastic sheet 112 and the cavity environment pressure, the sealing elastic sheet 112 reseals the liquid inlet 111, thereby effectively preventing liquid and/or gas from entering the liquid-taking capsule.
Fig. 1 is a schematic cross-sectional structure view of a liquid-extracting capsule according to a first embodiment of the present invention, and fig. 2 is a system block diagram of the liquid-extracting capsule according to the first embodiment of the present invention. As shown in fig. 1 and 2, the liquid-taking capsule provided by the present invention includes a capsule shell 10, a wireless transmission module 30, a triggering device 40 and a processing module 50, wherein the wireless transmission module 30, the triggering device 40 and the processing module 50 are all disposed in the capsule shell 10. The capsule shell 10 is formed with a first accommodating portion 11, a liquid inlet 111 is formed on a side wall of the first accommodating portion 11, in this embodiment, the liquid inlet 111 is formed on the capsule shell 10, a sealing elastic sheet 112 is sealed at the liquid inlet 111, and the sealing elastic sheet 112 is disposed on the inner side of the capsule shell 10. The wireless transmission module 30 receives an external command for taking liquid and transmits the command to the processing module 50. The processing module 50 controls the triggering device 40 to execute the liquid taking operation according to the liquid taking command. The triggering device 40 reduces the air pressure in the first container 11, so that the first container 11 forms a pressure difference with the environment outside the cavity. The force of the pressure difference acting on the sealing elastic sheet 112 and the pretightening force of the sealing elastic sheet 112 act together to push the sealing elastic sheet 112 away, so as to open the liquid inlet 111, so that the liquid in the cavity enters the first accommodating part 11, and the internal liquid taking is completed. The wireless transmission module 30 and the processing module 50 may be integrated on the same circuit board 70, or may be separately disposed on different circuit boards.
It should be noted that in the embodiment of the present application, the electrical components such as the position detection module 20, the wireless transmission module 30, the triggering device 40, and the processing module 50 are disposed in the capsule housing 10, and in order to ensure that the electrical components in the liquid-taking capsule can work normally after the liquid-taking is completed, the electrical components in the capsule housing 10 can be insulated, so that the electrical components can work normally in an environment where liquid exists. The insulating treatment may be Parylene (Parylene) treatment or the like, that is, a film or a coating is formed on the surface of the electrical component, thereby protecting the electrical component.
In the present embodiment, when liquid taking is not started, the existence of the sealing elastic sheet 112 prevents liquid and/or gas in the cavity environment from entering the first accommodating portion 11. Specifically, the sealing elastic sheet 112 has a pre-tightening force in the direction from the inside of the first accommodating portion 11 toward the liquid inlet 111, the sum of the pre-tightening force of the sealing elastic sheet 112 and the pressure in the first accommodating portion 11 (the force acting on the sealing elastic sheet 112) is not lower than the acting force exerted on the sealing elastic sheet 112 by the external air pressure, and the sealing elastic sheet 112 is tightly attached to the side wall of the capsule housing 10 around the liquid inlet 111, so as to form a seal at the liquid inlet 111.
When the liquid-extracting capsule reaches the liquid-extracting position (which may be a predetermined position calculated according to time or an accurate position observed in real time), the external control module sends a liquid-extracting command to the liquid-extracting capsule through the wireless transmission module 30. The processing module 10 will reduce the air pressure in the first container 11 through the triggering device 40, so that the pressure in the first container 11 is lower than the external pressure. At this time, a pressure difference is formed between the inside and the outside of the first accommodating portion 11, and the pressure difference can generate a pressing force on the sealing elastic sheet 112, so that the sealing elastic sheet 112 is separated from the liquid inlet 111, and the liquid in the cavity can enter the first accommodating portion 11. As the liquid enters the first accommodating portion 11, the pressure difference between the inside and the outside of the first accommodating portion 11 gradually decreases, and when the force applied to the sealing elastic sheet 112 by the pressure difference is smaller than the pre-tightening force of the sealing elastic sheet 112, the liquid inlet 111 can be closed again by the sealing elastic sheet 112.
In the process of discharging the liquid-taking capsule out of the cavity (after liquid taking is completed), the sealing elastic sheet 112 resists the pressure of the cavity environment through self pretightening force, so that the liquid inlet 111 is kept airtight, and after the liquid-taking capsule moves to other positions, liquid at other positions cannot enter the liquid-taking capsule again, so that liquid at different positions is prevented from being mixed. That is, the liquid-extracting capsule can easily and accurately extract liquid from a predetermined position in the cavity after reaching the position. In this embodiment, the cavity environment may be a gas environment or a liquid environment.
Further, the capsule housing 10 is also formed with a second housing portion 12, and a diaphragm 13 is formed between the second housing portion 12 and the first housing portion 11. The diaphragm 13 is used to block the first container 12 and the second container 11. In the present embodiment, the edge of the membrane 13 is fixedly connected to the inner wall of the capsule housing 10, and the membrane 13 can prevent the communication of the air in the first containing part 11 with the air in the second containing part 12.
When the liquid taking operation is not performed, the air pressure of the second accommodating portion 12 is smaller than the pressure of the cavity environment, and the average air pressures of the second accommodating portion 12 and the first accommodating portion 11 (i.e. the air pressure after the second accommodating portion 12 is communicated with the first accommodating portion 11) are both smaller than the pressure of the cavity environment, after the trigger device 40 receives the liquid taking command, the trigger device communicates the second accommodating portion 12 with the first accommodating portion 11, so that the air pressures in the first accommodating portion 11 and the second accommodating portion 12 (i.e. the whole capsule shell 10) are smaller than the pressure of the cavity environment, thereby forming a pressure difference with the cavity environment of the capsule shell 10, and pushing the sealing elastic sheet 112 to open the liquid inlet 111. That is to say, the liquid in the cavity environment pushes the sealing elastic sheet 112 to communicate the first accommodating portion 11 with the cavity environment through the liquid inlet 111, so that the liquid can flow out of the capsule shell 10 through the liquid inlet 111 to enter the first accommodating portion 11 under the action of pressure, thereby achieving the effect of collecting the liquid.
That is, in the present embodiment, the triggering device 40 equalizes the gas pressure in the first and second accommodating parts 11 and 12, so that the force applied to the sealing elastic sheet 112 in the capsule housing 10 is reduced. Preferably, when the liquid taking operation is not performed, the air pressure in the first accommodating portion 11 is greater than the pressure given to the sealing elastic sheet 112 by the cavity environment, so as to ensure that the sealing elastic sheet 112 has better sealing performance when the liquid taking operation is not performed.
It should be noted that in other embodiments of the present application, when the liquid extracting operation is not performed, the air pressure in the first accommodating portion 11 may also be smaller than or equal to the pressure in the cavity. At this time, the sum of the pressure of the first accommodating portion 11 acting on the sealing elastic sheet 112 and the pre-tightening force of the sealing elastic sheet 112 itself is greater than the pressure of the cavity environment acting on the sealing elastic sheet 112. Accordingly, the sealing elastic sheet 112 can be ensured to seal the first accommodating part 11 well when the liquid taking operation is not performed.
A first through hole 14 and a second through hole 15 are formed in the side walls of the second housing portion 12 and the first housing portion 11, respectively, and sealing plugs (not shown) are provided in both the first through hole 14 and the second through hole 15. In the preparation stage of liquid taking, air in the second containing part 12 can be extracted through the second through hole 15, meanwhile, the first containing part 11 is pressurized through the first through hole 14 so as to meet the requirement of air pressure in the second containing part 12 and the first containing part 11, and then the first through hole 14 and the second through hole 15 are sealed through the sealing plug. In some embodiments, the first container 11 is pre-filled with a gas, including but not limited to air, nitrogen, noble gas, or other gases capable of adjusting pressure without damaging the human body, and the second container 12 may be pre-filled with a negative pressure.
The liquid-extracting capsule of the present application is further provided with a magnetic member (not shown). Specifically, the magnetic member is disposed in the capsule housing 10, and may be made of ferromagnetic material such as rubidium magnet, and is used for driving the liquid-extracting capsule to move and changing the posture of the liquid-extracting capsule under the control of the external magnet.
In the embodiment of the present application, the triggering device 40 includes a fixing base 41, a solid hot-melt 42 that can be melted after heating, a heating wire 43, and a triggering member, wherein the triggering member can act on the diaphragm 13 to change the pressure in the first receiving portion 11. Preferably, the trigger member is a resilient member 44, such as an elastic member, which is simple in structure and suitable for installation, in order to accommodate the small space structure such as a capsule.
In one embodiment of the present application, the trigger is a resilient member 44 with a needle. Referring to fig. 1, the triggering device 40 includes a fixing base 41, a solid hot-melt material 42 capable of being melted after being heated, a heating wire 43, and an elastic member 44. The solid hot melt 42 is disposed in the fixing seat 41. The heating wire 43 is in contact with the solid hot melt 42, preferably the heating wire 43 is at least partially sealed within the solid hot melt 42. The elastic member 44 is sealed in the solid hot melt 42, and the elastic member 44 is in a compressed state, the elastic recovery direction of the elastic member 44 is disposed toward the diaphragm 13 (or the elastic member 44 can contact with the diaphragm 13 during the elastic recovery process), a needle body (not shown) is disposed at one end of the elastic member 44 facing the diaphragm 13, and the heating wire 43 is electrically connected to the processing module 50. After the processing module 50 receives the liquid taking command, the heating wire 43 is controlled to heat the solid hot melt 42, and after the solid hot melt 42 is melted, the elastic member 44 returns under the action of the deformation of the elastic member 44 to drive the needle body to puncture the membrane 13, so that the second accommodating part 12 is communicated with the first accommodating part 11, and the air pressure in the first accommodating part 11 is reduced. Wherein the needle body can be fixedly mounted to the end of the elastic member 44 close to the septum 13 by means of a connection member, and the sharp end of the needle body faces the septum 13. In other embodiments, the needle body may also be integrally formed with the resilient member 44.
In the present embodiment, the trigger device 40 is provided in the first housing portion 11, but it is understood that the trigger device 40 may be provided in the second housing portion 12 as well. As long as the elastic member 44 is released after the solid hot melt 42 melts, the elastic member 44 drives the needle body to puncture the membrane 13, so that the second accommodating part 12 is communicated with the first accommodating part 11.
In this embodiment, the melting point of the solid hot melt 42 may be 45 ℃ to 55 ℃. Preferably, the solid hot melt 42 may be paraffin. It is worth mentioning that for human body, the safety threshold of temperature is 55-60 deg.C, and temperatures below this range will not cause harm to human body. In the present application, the melting point of the solid hot melt 42 satisfies the above requirements, so the present application provides a liquid-extracting capsule with high safety and reliability.
Further, in the present embodiment, the tapping capsule further comprises a position detection module 20, and the position detection module 20 detects the real-time position of the tapping capsule and transmits the position signal to the processing module 50. The processing module 50 transmits the position signal out through the wireless transmission module 30. The control module acquires the accurate position of the liquid taking capsule according to the signal. The position detection module 20 may be an optical imaging system, and a transparent layer is formed on a portion of the capsule housing 10 corresponding to a lens of the optical imaging system to ensure that the optical imaging system is not blocked. Preferably, in some embodiments, the liquid inlet 111 is located outside a shooting angle of view (not shown in the figures) of a lens of the optical imaging system.
Further, as shown in fig. 2, a power module 60 is further disposed in the capsule housing 10 for supplying power to the position detection module 20, the processing module 50, the triggering device 40 and the wireless transmission module 30. In this embodiment, the position detection module 20, the processing module 50 and the wireless transmission module 30 are disposed in the first accommodating portion 11. It is to be understood that the modules may be disposed in the second receiving portion 12.
In this embodiment, the liquid inlet 111 is further provided with a sealing member (not shown) to facilitate the sealing between the liquid inlet 111 and the sealing elastic sheet 112. In this embodiment, the sealing member may be a sealing sheet or a backflow prevention valve to prevent the liquid entering the first container 11 from flowing back out of the first container.
In the present embodiment, a liquid absorbing device (not shown), such as a sponge, is further disposed in the first container 11, so as to facilitate absorption and storage of the liquid entering the first container 11. In some embodiments, the liquid absorbing device may be filled in the first container 11. In other embodiments, the capsule housing 10 is provided with the position detection module 20 or an image capturing device (not shown), and the liquid absorbing device is disposed outside the viewing angle of the position detection module 20 or the image capturing device, so as to ensure the normal operation of the position detection module 20 or the image capturing device.
Fig. 3 is a schematic structural view of a liquid-extracting capsule trigger device and a diaphragm according to a second embodiment of the present invention. Fig. 3 shows a schematic view of the structure of the solid hot melt 42 when it is not molten. As a modification of the above embodiment, in the second embodiment of the present invention, the diaphragm 13 is provided with a communication hole 46 connecting the first and second receiving parts 11 and 12, the solid hot melt 42 is sealed in the communication hole 46, and the heating wire 43 is in contact with the solid hot melt 42 and is connected to the process module 50. After the processing module 50 receives the liquid taking command, the heating wire 43 is controlled to start heating, so that the solid hot-melt object 42 is melted, and two sides of the diaphragm 13 are communicated, so that the air pressure in the first accommodating part 11 is reduced, and thus the liquid in the cavity environment can push away the sealing elastic sheet 112 to enter the first accommodating part 11. In fig. 3, the heating wire 43 is located on a side wall of the solid hot melt 42 facing the first receiving part 11; in yet another embodiment, the heating wire 43 may be provided on a sidewall of the solid hot melt 42 facing the second receiving part 12; in another embodiment, the heating wire 43 may also be disposed in the solid hot melt and electrically connected to the processing module 50 and/or the power module 60, which will not be described herein.
Fig. 4 is a schematic structural view of a liquid-extracting capsule trigger device and a diaphragm 13 according to a third embodiment of the present invention. Fig. 4 shows the structure of the solid hot melt 42 after melting and the elastic member 44 is recovered. As shown in fig. 4, in the third embodiment of the present invention, the triggering device 40 also includes a fixing base 41, a solid hot-melt 42, a heating wire 43 and an elastic member 44 (i.e., a triggering member) as in the first embodiment. The solid hot melt 42 is disposed in the fixing seat 41, the heating wire 43 contacts the solid hot melt 42, and the elastic member 44 is sealed in the solid hot melt 42. In the present embodiment, the triggering device 40 is disposed in the first accommodating portion 11, the elastic member 44 is in a compressed state, the elastic recovery direction of the elastic member 44 is disposed toward the diaphragm 13, and the heating wire 43 is electrically connected to the processing module 50. The difference is that after the processing module 50 receives the liquid taking command, the heating wire 43 is controlled to heat the solid hot melt 42 to release the elastic member 44, and the elastic member 44 pushes the diaphragm 13 to move towards the second container 12 to increase the volume of the first container 11. In the present embodiment, the diaphragm 13 is an elastic member and can be deformed by the elastic member 44 to adjust the volumes of the first and second accommodating parts 11 and 12, thereby changing the air pressure in the first accommodating part 11.
In this embodiment, when the first container 11 is sealed due to the increase of the volume of the first container 11, the air pressure in the first container 11 is reduced to form a pressure difference with the chamber environment.
It is understood that in this embodiment, the air pressure in the second container portion 12 may not be limited.
In the third embodiment, the triggering device 40 is located in the first receiving portion 11, and in order to move the diaphragm 13 toward the second receiving portion 12, the elastic member 44 is extended from a compressed state, and thus, the elastic member 44 needs to be in a compressed state in the solid hot melt 42.
As a modification of the above embodiment, the triggering device 40 may be located in the second container 12, in which case, the end of the elastic member 44 needs to be connected to the diaphragm 13, the elastic member 44 needs to be in a stretched state in the solid hot-melt material 42, and after the solid hot-melt material 42 is melted, the elastic member 44 is released and the elastic member 44 is restored to pull the diaphragm 13 to move toward the second container 12.
In other embodiments of the present application, the membrane 13 may also be a piston sliding along the inner wall of the capsule housing 10. Further, a seal ring or the like is provided between the piston and the capsule housing 10 to prevent the gas in the first containing portion 11 from flowing into the second containing portion 12. Wherein the triggering member may be an elastic member 44 connected to the diaphragm 13 and controlling the stop or movement of the diaphragm 13.
In summary, in the present invention, the trigger device 40 is arranged to form a pressure difference between the inside and the outside of the first accommodating portion 11, so that the sealing elastic sheet 112 opens the liquid inlet 111, and the liquid can be taken out. After the liquid is taken out, the liquid inlet 111 can be closed again by the sealing elastic sheet 112 due to no air pressure difference or reduced air pressure difference, and the liquid in the cavity is prevented from entering again. The liquid taking capsule can easily and accurately take liquid from a preset position in the cavity after reaching the preset position.
Fig. 5 is a system block diagram of a liquid extraction system according to an embodiment of the present invention. As shown in fig. 5, the present invention further provides a liquid fetching system, which includes the above liquid fetching capsule and the control module 80, wherein the control module 80 receives the position signal sent by the wireless transmission module 30 in the liquid fetching capsule, and sends a liquid fetching command to the wireless transmission module 30 of the liquid fetching capsule, so that the liquid fetching capsule completes liquid fetching.
The invention also provides a liquid taking method. The method comprises the following steps: after the liquid taking capsule is judged to reach the liquid taking position in the cavity, the control module sends a liquid taking command to the liquid taking capsule;
the wireless transmission module of the liquid taking capsule receives the liquid taking command and sends the liquid taking command to the processing module;
the processing module controls the trigger device to reduce the air pressure of the first accommodating part until the air pressure of the first accommodating part is smaller than the pressure of the cavity environment, and pressure difference is formed between the inside and the outside of the first accommodating part;
the sealing elastic sheet is separated from the liquid inlet under the action of pressure difference to open the liquid inlet, so that the first accommodating part is communicated with the cavity environment through the liquid inlet.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. A liquid-taking capsule is characterized in that: the wireless transmission module, the trigger device and the processing module are all arranged in the capsule shell, a first accommodating part is formed in the capsule shell, a liquid inlet is formed in the side wall of the first accommodating part, a sealing elastic sheet is sealed at the liquid inlet, the wireless transmission module receives an external liquid taking command and transmits the command to the processing module, the processing module controls the trigger device to execute liquid taking operation according to the liquid taking command, the trigger device reduces air pressure in the first accommodating part so that the first accommodating part and a cavity environment form pressure difference, and the pressure difference pushes the sealing elastic sheet to open the liquid inlet to enable the first accommodating part to be communicated with the cavity environment.
2. The liquid-extracting capsule according to claim 1, wherein: the capsule shell is also provided with a second containing part, a diaphragm is arranged between the first containing part and the second containing part, and the diaphragm separates the first containing part from the second containing part; when liquid is not taken, the air pressure of the second accommodating part and the average air pressure of the first accommodating part and the second accommodating part are both smaller than the air pressure in the cavity, and the triggering device is communicated with the second accommodating part and the first accommodating part after receiving the liquid taking command, so that the pressure of the first accommodating part is smaller than the pressure of the environment of the cavity.
3. The liquid-extracting capsule according to claim 2, wherein: the trigger device comprises a fixed seat, a solid hot melt object heated and melted, a heating wire and an elastic element; the solid hot melt is arranged in the fixed seat, and the heating wire is electrically connected with the processing module; the elastic piece is fixedly sealed in the solid hot melt, the elastic piece is in a compressed state, and the elastic recovery direction of the elastic piece is arranged towards the diaphragm; the elastic component orientation the one end of diaphragm is provided with the needle body, works as processing module receives and gets behind the liquid order, and the control heating wire is right solid-state hot melt thing heating, solid-state hot melt thing melts the back, the elastic component replies and drives the needle body punctures the diaphragm makes first portion of holding with the intercommunication of second portion of holding.
4. The liquid-extracting capsule according to claim 2, wherein: trigger device is including heating the solid state hot melt thing of melting and the heater strip with solid state hot melt thing contact, be provided with the intercommunication on the diaphragm first container part with the intercommunicating pore of second container part, solid state hot melt thing shutoff in the intercommunicating pore, the heater strip with processing module electrical property links to each other, processing module receives and gets liquid order after, control the heater strip is right solid state hot melt thing heating, solid state hot melt thing melts, makes first container part with second container part intercommunication.
5. The liquid-extracting capsule according to claim 1, wherein: still be formed with the second in the capsule shell and hold the portion, first hold the portion with be provided with the diaphragm between the second holds the portion, trigger device includes fixing base, heating fused solid-state hot melt thing, heater strip and elastic component, solid-state hot melt thing set up in the fixing base, the heater strip with the processing module electrical property links to each other, the elastic component be in deformation state seal admittedly in the solid-state hot melt thing, work as processing module receives and gets behind the liquid order, control the heater strip is right solid-state hot melt thing heating, after the solid-state hot melt thing melts, the elastic component replies and drives the diaphragm is in order to enlarge volume in the first portion that holds.
6. The fluid extraction capsule of claim 5, wherein: the trigger device is arranged in the first accommodating part, and the elastic piece is in a compressed state and is fixedly sealed in the solid hot melt.
7. The fluid extraction capsule of claim 5, wherein: the trigger device is arranged in the second accommodating part, the elastic part is connected with the diaphragm, and the elastic part is in a stretching state and is fixedly sealed in the solid hot melt.
8. The liquid extraction capsule according to any one of claims 3 to 7, wherein: the melting point of the solid hot melt is 45-55 ℃.
9. The liquid extraction capsule according to any one of claims 3 to 7, wherein: the solid hot melt is paraffin.
10. The liquid-extracting capsule according to claim 1, wherein: a position detection module is further arranged in the liquid taking capsule, the position detection module is an optical imaging system, and a transparent layer is formed on the capsule shell corresponding to a lens of the optical imaging system; preferably, the liquid inlet is located outside the shooting angle of view of the lens.
11. The liquid-extracting capsule according to claim 1 or 10, wherein: a liquid absorbing device is also disposed in the first housing portion.
12. A liquid taking system is characterized in that: comprises the liquid taking capsule as claimed in any one of claims 1 to 11, and a control module which receives the position signal sent by the liquid taking capsule and sends a liquid taking command to the liquid taking capsule.
13. A capsule liquid taking method is characterized in that:
the tapping capsule as claimed in any one of claims 1 to 11 reaching a tapping position, the control module sending a tapping command to the tapping capsule;
the wireless transmission module of the liquid taking capsule receives the liquid taking command and sends the liquid taking command to the processing module;
the processing module controls the trigger device to reduce the air pressure of the first accommodating part until the air pressure of the first accommodating part is smaller than the pressure of the cavity environment, so that a pressure difference is formed;
the sealing elastic sheet is separated from the liquid inlet under the action of pressure difference to open the liquid inlet, so that the first accommodating part is communicated with the cavity environment through the liquid inlet.
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| CN202010693219.XA CN111700648A (en) | 2020-07-17 | 2020-07-17 | Liquid taking capsule, liquid taking system and capsule liquid taking method |
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| CN202010693219.XA CN111700648A (en) | 2020-07-17 | 2020-07-17 | Liquid taking capsule, liquid taking system and capsule liquid taking method |
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| CN111700648A true CN111700648A (en) | 2020-09-25 |
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