Endocrine anti-reflux inspection sampling device for critical patient

Abstract

The invention discloses an endocrine anti-reflux inspection sampling device for critical patients, and belongs to the technical field of secretion sampling, the endocrine anti-reflux inspection sampling device comprises a placing shell, a sampling unit for sampling endocrine is arranged on the placing shell, one side of the sampling unit is provided with a quantitative storage unit for controlling the sampling amount of the endocrine, and the other side of the sampling unit is provided with a control unit for controlling the sampling amount of the endocrine. One side of the quantitative storage unit is provided with a blocking unit for sealing after endocrine sampling, the weight change of the endocrine is sensed through the containing weight driving unit, the sampling completion closing unit is linked to quickly block a sampling channel, and the blocking unit is matched to form double-closed protection, so that a reflux path is cut off from the source, and the safety of endocrine sampling is improved. The risk of patient airway infection caused by reflux of an existing device is effectively solved, meanwhile, sample pollution caused by reflux is avoided, the purity of a submitted sample is ensured, an accurate basis is provided for disease diagnosis, and the medical safety of a critical patient in the sampling process is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of secretion sampling, in particular to an internal secretion anti-reflux sampling device for critical patients. BACKGROUND

[0002] In the clinical diagnosis and treatment of critical patients, the sampling of internal secretion is a key link for disease diagnosis and condition monitoring. Such patients often cannot cooperate with sampling due to reasons such as coma, tracheal intubation, and paralysis, and the sampling process needs to rely on special devices. The current sampling devices used in clinical practice mainly have basic collection functions, and the structure design is relatively simple. They mainly guide the secretion to the collection container through the pipeline, and are suitable for sampling operation in normal scenes.

[0003] However, the existing sampling devices have many problems in actual application, affecting the safety and accuracy of sampling. During the sampling process, the secretion is prone to reflux due to changes in the patient's body position and pressure fluctuations in the pipeline, which may cause airway infection or sample contamination in the patient; the sampling volume lacks an effective control mechanism, and it is easy to appear the situation that the sampling volume is insufficient to cause incomplete detection data or the sampling volume is excessive to cause sample overflow, depending on the experience of medical staff; after sampling is completed, there is a lack of a quick and reliable sealing structure, and the sample is prone to evaporation and contamination during transportation, which further increases the risk of reflux; the operation process of the device is complicated, and medical staff need to manually adjust it in multiple steps, which may delay the sampling opportunity or affect the sample quality due to improper operation in a busy scene such as an intensive care unit. SUMMARY

[0004] The purpose of the present application is to provide an internal secretion anti-reflux sampling device for critical patients to solve the problems of the existing secretion sampling in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a placing shell is provided, a sampling unit for sampling internal secretion is arranged on the placing shell, a quantitative storage unit for controlling the sampling volume of internal secretion is arranged on one side of the sampling unit, a plugging unit for sealing after sampling internal secretion is arranged on one side of the quantitative storage unit, the quantitative storage unit comprises a storage weight driving unit driven by the weight of internal secretion and a quantitative adjustment unit for adjusting the sampling volume of internal secretion, and the sampling unit comprises a sampling tube and a sampling connecting cylinder installed on the placing shell. As a further preferred embodiment of the present application: the storage weight driving unit comprises a storage tube installed on the placing shell, a placing disc is connected to the inner side of the storage tube, a first sliding rod is connected to the lower middle position of the placing disc, a spring is sleeved on the outer side of the first sliding rod, a quantitative adjustment rod is connected to the lower end of the first sliding rod, a pressing rod is connected to one end of the quantitative adjustment rod, and the storage weight driving unit further comprises a measuring plate arranged on the outer side of the pressing rod. As a further preferred embodiment of this technical solution: the lower side of the holding tube is installed inside the placement shell, the placement plate slides against the inner side of the holding tube, the two ends of the spring are respectively connected to the inner side of the holding tube and the lower side of the placement plate, the quantitative adjustment rod is L-shaped, the pressing rod is slidably connected to the inner side of the measuring plate, and the measuring plate is fixedly installed inside the placement shell. As a further preferred embodiment of this technical solution: the quantitative adjustment unit includes a first hydraulic rod disposed on the lower side of the pressing rod, an adjustment groove is provided on the first hydraulic rod, an adjustment block is provided on the inner side of the adjustment groove, the quantitative adjustment unit includes a hydraulic pipe, a hydraulic return spring is connected to the inner side of the hydraulic pipe, and a second hydraulic rod is connected to one end of the hydraulic pipe. As a further preferred embodiment of this technical solution: the pressing rod is slidably connected to the U-shaped groove opened on the first hydraulic rod, multiple sets of adjusting grooves are provided and evenly distributed on the first hydraulic rod, the adjusting grooves are provided through the adjusting grooves, the lower side of the pressing rod is attached to the upper side of the adjusting block, the first hydraulic rod is attached to and slidably connected to the inner side of the hydraulic pipe, the two ends of the hydraulic reset spring are respectively fixedly connected to the lower end of the first hydraulic rod and the inner side of the hydraulic pipe, and the second hydraulic rod is attached to and slidably connected to the end of the hydraulic pipe away from the first hydraulic rod; As a further preferred embodiment of this technical solution: the sampling completion sealing unit includes a connecting rod disposed at one end of the second hydraulic rod, a rack is connected to one end of the connecting rod, a gear is meshed on one side of the rack, a rotating shaft is connected to the middle position of the gear, and a pipe cover is connected to the outside of the rotating shaft. The sampling sealing unit also includes a connecting plate and a guide plate. As a further preferred embodiment of this technical solution: the upper end of the connecting rod is fixedly mounted on the lower end of the second hydraulic rod, the rack is fixedly mounted on the lower end of the connecting rod, one side of the pipe cover is fixedly mounted on the rotating shaft, the rotating shaft is rotatably connected to the connecting plate, and the connecting plate is fixedly mounted on the inner side of the sampling connecting cylinder. As a further preferred embodiment of this technical solution: the blocking unit includes a cover plate that fits against the upper side of the holding tube, a second sliding rod connected to one side of the cover plate, a connecting spring sleeved on the outer side of the second sliding rod, a connecting block connected to the end of the second sliding rod away from the cover plate, and the blocking unit also includes a fixing sliding rod; As a further preferred embodiment of this technical solution: the second slide rod is slidably connected to the sampling connecting cylinder, the two ends of the connecting spring are respectively fixedly connected to the outer side of the sampling connecting cylinder and the side of the connecting block near the second slide rod, and the fixed slide rod is slidably connected to the inner side of the connecting block; As a further preferred embodiment of this technical solution: the hydraulic pipe is fixedly installed inside the housing, and the quantitative adjustment rod is slidably connected to the support cylinder provided on the lower side of the holding pipe.

[0006] Compared with the prior art, the beneficial effects of the present invention are: In the present application, the weight change of the secretions is perceived by the weight driving unit, the sampling channel is quickly blocked by the linkage sampling complete sealing unit, the double sealing protection is formed by the blocking unit, the reflux path is cut off from the source, the risk of airway infection of patients caused by reflux of the existing device is effectively solved, the sample pollution caused by reflux is avoided, the purity of the submitted sample is ensured, accurate basis is provided for disease diagnosis, and the medical safety of the sampling process of critical patients is significantly improved; The quantitative adjustment unit can flexibly adapt to the sampling amount demand of different detection items through the combined design of multiple adjustment grooves and adjustment blocks, accurately grade control the sampling amount, solve the problems of incomplete detection data caused by insufficient sampling and sample overflow caused by excessive sampling, ensure the smooth development of detection work, reduce sample waste and environmental pollution, and improve the standardization and reliability of sampling operation; After sampling is completed, the device automatically triggers the pipe cover closure through pure mechanical transmission without additional manual operation of medical staff, and forms a whole-process closed protection through the secondary sealing of the blocking unit, effectively avoiding the problems of sample volatilization and pollution in the transportation process caused by the existing device due to untimely or poor sealing effect, maximizing the preservation of the original characteristics of the sample, ensuring the accuracy of the detection result, and reducing the pollution risk of the sample to the surrounding environment and medical staff. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 Structure diagram of the endocrine secretion anti-reflux sample submission device for critical patients Figure One ; Figure 2 Structure diagram of the endocrine secretion anti-reflux sample submission device for critical patients Figure Two ; Figure 3 Structure diagram of the endocrine secretion anti-reflux sample submission device for critical patients Figure Three ; Figure 4 Partial structure section view of the endocrine secretion anti-reflux sample submission device for critical patients Figure One ; Figure 5 Partial structure section view of the endocrine secretion anti-reflux sample submission device for critical patients Figure Two ; Figure 6 Partial structure diagram of the endocrine secretion anti-reflux sample submission device for critical patients Figure One ; Figure 7 Partial structure diagram of the endocrine secretion anti-reflux sample submission device for critical patients Figure Two ; Figure 8This is a partial structural cross-section of an endocrine sample collection device for critically ill patients to prevent reflux. Figure Three ; Figure 9 for Figure Eight Enlarged view of point A; Figure 10 for Figure Eight Enlarged view of point B; Figure 11 for Figure Eight Enlarged view of point C.

[0008] In the diagram: 1. Housing; 2. Sampling unit; 21. Sampling tube; 22. Sampling connecting tube; 3. Quantitative storage unit; Weight-driven unit for holding: 31. Holding tube; 32. Placement tray; 33. First slide bar; 34. Quantitative adjustment bar; 35. Pressing bar; 36. Measuring plate; Quantitative adjustment unit: 37, first hydraulic rod; 38, adjustment groove; 39, adjustment block; 310, hydraulic pipe; 311, hydraulic return spring; 312, second hydraulic rod; Sampling completed closed unit: 313, connecting rod; 314, rack; 315, gear; 316, rotating shaft; 317, pipe cover; 318, connecting plate; 319, guide plate; 4. Blocking unit; 41. Cover plate; 42. Second slide rod; 43. Connecting spring; 44. Connecting block; 45. Fixing slide rod. Detailed Implementation

[0009] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0010] Example

[0011] Please see Figures 1-11 This application provides a schematic diagram of some embodiments of an endocrine sample collection device for critically ill patients to prevent reflux.

[0012] In some embodiments, the endocrine anti-reflux sampling device for critically ill patients can be applied in scenarios such as intensive care units, ambulances, and neurology wards. Specifically, in intensive care units, it can be used for critically ill patients who are comatose or intubated and unable to cooperate with sampling; in ambulances, it can be used for patients requiring emergency sampling during transport; and in neurology wards, it can be used for routine sampling of long-term bedridden patients such as those with stroke or paralysis. Figure 1In the embodiment, the device is applied to the sputum sampling of a trachea cannula patient in an intensive care unit. Of course, the endocrine sampling in other scenarios can also adopt a similar structure, and details are not described herein.

[0013] It can be understood that only the core components included in the device are schematically shown in the schematic diagram, and the actual shape, actual size, and actual position of the components are not limited by the schematic diagram. The device can further include auxiliary components such as an anti-skid base, a scale mark, and a convenient handle to improve the operation stability and use convenience.

[0014] In some embodiments, the endocrine sampling device for anti-reflux sampling of a critical patient can include a placement shell 1, a sampling unit 2, a quantitative storage unit 3, and a blocking unit 4. The sampling unit 2 is installed on the placement shell 1, the quantitative storage unit 3 is arranged on one side of the sampling unit 2, and the blocking unit 4 is arranged on one side of the quantitative storage unit 3.

[0015] It should be noted that when the device is used for sputum sampling of a trachea cannula patient in an intensive care unit, the placement shell 1 can serve as the installation basis of each functional unit and is made of medical-grade ABS material with an antibacterial surface treatment. The sampling unit 2 is adapted to the patient's trachea cannula through a sampling tube 21 to guide the sputum. The quantitative storage unit 3 precisely controls the sampling amount through a secretion weight driving mechanism. The blocking unit 4 quickly closes the channel after sampling to avoid reflux pollution.

[0016] In some embodiments, the sampling unit 2 can include a sampling tube 21 and a sampling connecting cylinder 22, wherein: The sampling tube 21 is a medical silicone hose, one end of which is adapted to the patient's trachea cannula interface through a buckle, and the other end is sealedly connected to the sampling connecting cylinder 22. The silicone material is soft and has good biocompatibility, avoiding irritation to the patient's airway mucosa. The sampling connecting cylinder 22 is a cylindrical transparent acrylic cylinder fixed on the upper side of the placement shell 1 through a bolt, with a capacity scale marked on the outside for intuitive observation of the sampling progress. One end of the sampling connecting cylinder 22 is in communication with the sampling tube 21, and the other end is in butt joint with a containing tube 31 of the quantitative storage unit 3.

[0017] It should be noted that the length of the sampling tube 21 can be adjusted according to the use scenario. For example, in a small space such as an ambulance, a short sampling tube 21 can be used to reduce space occupation. It can be understood that the shape of the sampling connecting cylinder 22 shown in the figure is only schematic, and the specific design can be a tapered transition structure to ensure smooth flow of the secretion into the containing tube 31, which is not limited herein.

[0018] In some embodiments, the containing weight driving unit can include a containing tube 31, a placement disc 32, a first sliding rod 33, a spring, a quantitative adjustment rod 34, a pressing rod 35, and a measuring plate 36, wherein: The holding tube 31 is a cylindrical stainless steel tube, welded and fixed to the inner side of the placing shell 1, used to store the endocrine secretions after sampling, with polished inner side to reduce residue of secretions; The placing disc 32 is a circular polytetrafluoroethylene plate, with nitrile rubber sealing ring pasted on the outer side, slidingly fitted on the inner side of the holding tube 31 to ensure airtightness and prevent leakage, and receiving the inflow of endocrine secretions on the upper side; The first sliding rod 33 is a 304 stainless steel cylindrical rod, vertically welded to the lower side center of the placing disc 32 at the upper end, and welded and fixed with the quantitative adjustment rod 34 at the lower end, synchronously lifting and lowering with the placing disc 32; The spring is a piano steel wire compression spring, sleeved on the outer side of the first sliding rod 33, welded to the inner bottom of the holding tube 31 and the lower side of the placing disc 32 at both ends respectively, in the initial state, in the natural elongation state, providing support for the placing disc 32; The quantitative adjustment rod 34 is an L-shaped stainless steel rod, one end fixed with the lower end of the first sliding rod 33, the other end vertically welded with the pressing rod 35, converting the lifting and lowering movement of the placing disc 32 into the vertical displacement of the pressing rod 35; The pressing rod 35 is a stainless steel cylindrical rod, slidingly connected in the guide hole on the inner side of the measuring plate 36, and the measuring plate 36 is a rectangular stainless steel plate, fixed by bolts on the inner side of the placing shell 1, providing sliding guide for the pressing rod 35.

[0019] It should be noted that when the secretions continue to flow into the holding tube 31 and accumulate on the placing disc 32, the weight gradually increases, generating a downward pressure to overcome the spring force, pushing the placing disc 32 to slide downward along the inner side of the holding tube 31; the placing disc 32 synchronously moves downward with the first sliding rod 33, and further pulls the pressing rod 35 downward along the guide hole of the measuring plate 36 through the quantitative adjustment rod 34, realizing force transmission and conversion of weight displacement, and providing trigger power for the quantitative adjustment unit.

[0020] In this embodiment, the sealing cooperation of the placing disc 32 and the holding tube 31 can avoid leakage of secretions, the elastic support of the spring makes the pressure transmission more gentle, and the guide design of the measuring plate 36 ensures the stable movement track of the pressing rod 35, avoiding trigger failure caused by deviation, effectively solving the problem of uncontrollable sampling amount of traditional sampling devices.

[0021] In some other embodiments, the stiffness of the spring can be adjusted according to the target sampling amount, for example, if the target sampling amount is large, a spring with larger stiffness can be selected to ensure that the weight of the secretions reaches the set value to stably trigger the subsequent mechanism action, without being limited to a single parameter setting.

[0022] In some embodiments, the quantitative adjustment unit can include a first hydraulic rod 37, an adjustment groove 38, an adjustment block 39, a hydraulic tube 310, a hydraulic reset spring 311, and a second hydraulic rod 312, wherein: The first hydraulic rod 37 is a cylindrical stainless steel rod, and a U-shaped groove is formed on the upper side of the first hydraulic rod 37. The pressing rod 35 is slidably connected in the U-shaped groove, so that the pressure of the pressing rod 35 can be accurately transmitted to the first hydraulic rod 37. The adjusting groove 38 is a rectangular groove, and a plurality of adjusting grooves 38 are evenly distributed on the upper side of the first hydraulic rod 37. By selecting the adjusting groove 38 at different positions to install the adjusting block 39, the sampling threshold of the triggering closed mechanism can be adjusted. The adjusting block 39 is a rectangular stainless steel block, which is embedded in the inner side of the adjusting groove 38. The upper side of the adjusting block 39 is in contact with the lower side of the pressing rod 35, and the adjusting block 39 receives the pressure transmitted by the pressing rod 35. The hydraulic pipe 310 is a cylindrical aluminum alloy pipe, one end of which is open, and the other end is in sealing cooperation with the second hydraulic rod 312. The inner side of the hydraulic pipe 310 is filled with medical hydraulic oil, and the first hydraulic rod 37 is slidably connected to the inner side of the open end of the hydraulic pipe 310. The hydraulic reset spring 311 is a compression spring, and the two ends of the hydraulic reset spring 311 are fixedly connected to the lower end of the first hydraulic rod 37 and the inner bottom of the hydraulic pipe 310, respectively. In the initial state, the hydraulic reset spring 311 is in a natural elongation state. The second hydraulic rod 312 is a cylindrical stainless steel rod, which is slidably connected to the end of the hydraulic pipe 310 away from the first hydraulic rod 37, and is in sealing cooperation with the inner side of the hydraulic pipe 310. The second hydraulic rod 312 converts the pressure of the hydraulic oil into a linear thrust force.

[0023] It should be noted that when the pressing rod 35 is lowered to contact the adjusting block 39 along with the placement disc 32, the downward pressure is continuously applied to push the first hydraulic rod 37 to slide downward along the inner side of the hydraulic pipe 310, compress the hydraulic reset spring 311 and squeeze the hydraulic oil. The hydraulic oil transmits the pressure to the second hydraulic rod 312, and the second hydraulic rod 312 slides away from the first hydraulic rod 37, realizing the conversion of mechanical pressure, hydraulic pressure and linear thrust force, and providing power for the subsequent closed unit.

[0024] In this embodiment, the design of the plurality of adjusting grooves 38 makes the device adaptable to the sampling amount requirements of different detection items. The hydraulic transmission mode has stable force output, avoids the mechanism from being stuck at the critical value of the sampling amount, and improves the quantitative control accuracy.

[0025] It should be noted that the number of adjusting grooves 38 is not limited to multiple groups, and can be increased or decreased according to actual needs, as long as the sampling amount can be adjusted.

[0026] In some embodiments, the sampling completion closed unit can include a connecting rod 313, a rack 314, a gear 315, a rotating shaft 316, a pipe cover 317, a connecting plate 318 and a flow guide plate 319, wherein: The connecting rod 313 is a stainless steel rectangular rod, and the upper end of the connecting rod 313 is fixed to the lower end of the second hydraulic rod 312 by bolts. The connecting rod 313 is displaced synchronously with the second hydraulic rod 312. The rack 314 is a straight rack 314, which is welded and fixed at the lower end of the connecting rod 313, and the tooth surface faces the side of the gear 315 to ensure precise meshing with the gear 315; The gear 315 is a cylindrical spur gear 315, which is arranged in meshing with one side of the rack 314 to convert the linear motion of the rack 314 into rotary motion; The rotating shaft 316 is a stainless steel cylindrical shaft, which is welded and fixed at one end in the middle position of the gear 315 and welded at the other end with the pipe cover 317 to rotate synchronously with the gear 315; The pipe cover 317 is a circular silica gel cover, which is fixed on one side of the rotating shaft 316 and is in an open state in the initial state and can completely cover the docking port of the sampling connecting cylinder 22 and the holding tube 31 after rotation; The connecting plate 318 is a rectangular stainless steel plate, which is fixed inside the sampling connecting cylinder 22 by bolts, and the rotating shaft 316 is rotatably connected to the connecting plate 318 by a bearing to provide stable support for the rotating shaft 316; The guide plate 319 is an arc-shaped acrylic plate, which is welded inside the sampling connecting cylinder 22 and located at the docking position of the sampling tube 21 and the holding tube 31 to guide the secretion to flow to the placement disc 32 and avoid remaining on the inner wall of the connecting cylinder.

[0027] It should be noted that when the second hydraulic rod 312 slides away from the hydraulic pipe 310, the connecting rod 313 and the rack 314 are driven to move downward synchronously; the rack 314 drives the meshing gear 315 to rotate clockwise, the gear 315 drives the rotating shaft 316 to rotate synchronously, and then pulls the pipe cover 317 to rotate around the rotating shaft 316 from the open state to the closed state; when the pipe cover 317 completely fits the docking port of the sampling connecting cylinder 22 and the holding tube 31, the sampling channel is closed to prevent the backflow of the secretion.

[0028] In this embodiment, the gear 315 and rack 314 transmission structure ensures that the rotation of the pipe cover 317 is stable and accurate, the pipe cover 317 made of silica gel has excellent sealing performance and can effectively block the backflow path; the arc-shaped design of the guide plate 319 reduces the residue of the secretion, improves the sample collection rate, and solves the problem of easy backflow after sampling of the traditional device.

[0029] It can be understood that the shape of the pipe cover 317 shown in the figure is only illustrative, and can be adjusted according to the shape of the port of the sampling connecting cylinder 22, as long as it can achieve complete sealing, which is not limited herein.

[0030] In some embodiments, the blocking unit 4 can include a cover plate 41, a second sliding rod 42, a connecting spring 43, a connecting block 44, and a fixed sliding rod 45, wherein: The cover plate 41 is a circular silica gel plate, which is arranged on the upper side of the holding tube 31 to close the upper port of the holding tube 31 and avoid sample pollution or evaporation; The second slide rod 42 is a stainless steel cylindrical rod, one end of which is welded and fixed with one side of the cover plate 41, and the other end penetrates through the guide hole of the sampling connecting cylinder 22 and is connected to the guide hole in a sliding manner, thereby driving the cover plate 41 to translate; The connecting spring 43 is a piano wire tension spring, which is sleeved outside the second slide rod 42 and fixedly connected to the outside of the sampling connecting cylinder 22 and the side of the connecting block 44 close to the second slide rod 42 at two ends, respectively, in an initial state of slight tension, and the cover plate 41 is pulled to adhere to the upper port of the containing tube 31; The connecting block 44 is a rectangular stainless steel block, one end of which is welded with the end of the second slide rod 42 away from the cover plate 41, and the inside of which is provided with a guide hole, and the fixed slide rod 45 penetrates through the guide hole and is connected to the guide hole in a sliding manner; The fixed slide rod 45 is a stainless steel cylindrical rod, both ends of which are welded and fixed inside the placing shell 1, thereby providing translation guidance for the connecting block 44 and ensuring that the cover plate 41 accurately docks with the upper port of the containing tube 31.

[0031] It should be noted that after sampling is completed, medical staff can manually push the connecting block 44 to move along the fixed slide rod 45 away from the containing tube 31, the connecting block 44 stretches the connecting spring 43 and drives the second slide rod 42 to displace synchronously, thereby pulling the cover plate 41 to separate from the upper port of the containing tube 31, so as to facilitate the removal of the sample for inspection; after the inspection is completed, the connecting block 44 is loosened, the connecting spring 43 releases the elastic potential energy, and the cover plate 41 is reset to adhere to the upper port of the containing tube 31, thereby achieving closed protection.

[0032] In the embodiment, the guide design of the fixed slide rod 45 ensures that the movement trajectory of the cover plate 41 is accurate, and deviation is avoided to cause sealing failure; the cover plate 41 made of silica gel has sealing performance and softness, and will not damage the port of the containing tube 31; the elastic effect of the connecting spring 43 makes the cover plate 41 close tightly, thereby effectively preventing sample pollution.

[0033] It should be noted that the pre-tension of the connecting spring 43 can be adjusted according to actual use requirements; for example, if the operation force needs to be reduced, a spring with smaller pre-tension can be selected, as long as the sealing performance of the cover plate 41 when closed can be ensured, and the fixed parameters are not rigidly adhered to.

[0034] Working principle or structural principle: Firstly, the components of the device are in a standby state, the tube cover 317 of the closed unit is in an open state after sampling is completed, and the cover plate 41 of the blocking unit 4 adheres to the upper port of the containing tube 31 under the tension of the connecting spring 43; the placing disc 32 of the quantitative storage unit 3 is located on the upper side of the containing tube 31 under the support of the spring, and the pressing rod 35 does not contact the adjusting block 39 of the quantitative adjusting unit; the hydraulic reset spring 311 in the hydraulic tube 310 is in a natural elongation state, and the second hydraulic rod 312 is located at the end of the hydraulic tube 310 close to the first hydraulic rod 37; Sampling preparation: medical staff, manually pull the connecting block 44 of the blocking unit 4, fix the connecting block 44 through the fixed slide rod 45, drive the cover plate 41 to separate from the upper port of the containing tube 31, connect the one end of the sampling tube 21 with the patient tracheal intubation interface, and ensure the sealing connection; according to the detection item requirement, select the corresponding adjusting groove 38 on the quantitative adjusting rod 34, embed the adjusting block 39 into the target groove position, and set the sampling amount threshold; Quantitative sampling process: the patient's endogenous substances flow into the sampling connecting cylinder 22 through the sampling tube 21, flow into the containing tube 31 after being guided by the flow guide plate 319, and accumulate on the upper side of the placing disc 32; with the increase of the weight of the endogenous substances, the placing disc 32 overcomes the spring force and slides downward, driving the first slide rod 33, the quantitative adjusting rod 34 and the pressing rod 35 to move downward synchronously; when the sampling amount reaches the set threshold, the lower side of the pressing rod 35 adheres to the adjusting block 39 and applies downward pressure, pushing the first hydraulic rod 37 to slide downward along the inner side of the hydraulic tube 310, compressing the hydraulic return spring 311 and extruding the hydraulic oil; the hydraulic oil transmits the pressure to the second hydraulic rod 312, pushing the second hydraulic rod 312 to displace away from the first hydraulic rod 37; Automatic closing process: the displacement of the second hydraulic rod 312 drives the connecting rod 313 and the rack 314 to move downward synchronously, the rack 314 drives the meshed gear 315 to rotate in the direction of the sampling tube 21, the gear 315 drives the tube cover 317 to rotate around the connecting plate 318 through the rotating shaft 316, gradually closing the butt joint port of the sampling connecting cylinder 22 and the containing tube 31; when the tube cover 317 is completely closed, the sampling channel is blocked, effectively preventing the reflux of endogenous substances; at this time, the medical staff releases the connecting block 44 of the blocking unit 4, and the cover plate 41 is reset to adhere to the upper port of the containing tube 31 under the action of the connecting spring 43, completing the double sealing; Sample submission: the medical staff pushes the connecting block 44 again to open the cover plate 41, takes out the sample in the containing tube 31 for submission; after the submission is completed, the containing tube 31 is reset, the connecting block 44 is released to close the cover plate 41, and the device returns to the initial standby state, and the next sampling can be performed.

[0035] It should be noted that, in this text, relational terms such as first and second are used only to distinguish one entity or action from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0036] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired, without departing from the purpose of the present application, without creative design, similar structure and embodiments to the technical solution, which should belong to the protection scope of the present application Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An endocrine anti-reflux delivery and sampling device for critically ill patients, characterized by: The utility model provides a kind of endocrine sampling device, including placing shell (1), be provided with for sampling unit (2) of endocrine sampling, the one side of sampling unit (2) is provided with the quantitative storage unit (3) of controlling endocrine sampling amount, the one side of quantitative storage unit (3) is provided with the plugging unit (4) of endocrine sampling is sealed, quantitative storage unit (3) includes the weight drive unit of containing by the weight of endocrine and the quantitative adjustment unit of adjusting endocrine sampling amount, sampling unit (2) includes sampling tube (21) and sampling connecting cylinder (22) installed in placing shell (1).

2. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 1, characterized in that: The weight drive unit of containing includes containing tube (31) installed in placing shell (1), the inside of containing tube (31) is connected with placing disc (32), the lower side middle position of placing disc (32) is connected with first sliding rod (33), the outside of first sliding rod (33) is equipped with spring, the lower end of first sliding rod (33) is connected with quantitative adjustment rod (34), one end of quantitative adjustment rod (34) is connected with pressing rod (35), the weight drive unit of containing further includes the measuring plate (36) of being provided in the outside of pressing rod (35).

3. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 2, characterized in that: The lower side of containing tube (31) is installed in the inside of placing shell (1), placing disc (32) is attached to the inside of containing tube (31) and slides, the both ends of spring are connected to the inside of containing tube (31) and the lower side of placing disc (32), the shape of quantitative adjustment rod (34) is L-shaped, pressing rod (35) is slidably connected to the inside of measuring plate (36), and measuring plate (36) is fixedly arranged in the inside of placing shell (1).

4. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 3, characterized in that: Quantitative adjustment unit includes first hydraulic rod (37) provided in the lower side of pressing rod (35), and the inside of adjusting groove (38) is provided with adjusting block (39) on first hydraulic rod (37), and quantitative adjustment unit includes hydraulic pipe (310), and the inside of hydraulic pipe (310) is connected with hydraulic reset spring (311), and one end of hydraulic pipe (310) is connected with second hydraulic rod (312).

5. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 4, characterized in that: Pressing rod (35) is slidably connected in the U-shaped groove provided on first hydraulic rod (37), adjusting groove (38) is provided with multiple groups and is evenly distributed on first hydraulic rod (37), adjusting groove (38) is provided through adjusting groove (38), the lower side of pressing rod (35) is attached to the upper side of adjusting block (39), first hydraulic rod (37) is slidably connected to the inside of hydraulic pipe (310), the both ends of hydraulic reset spring (311) are fixedly connected to the lower end of first hydraulic rod (37) and the inside of hydraulic pipe (310) respectively, and second hydraulic rod (312) is slidably connected to the end of hydraulic pipe (310) away from first hydraulic rod (37).

6. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 5, characterized in that: The sampling completion sealing unit includes a connecting rod (313) located at one end of the second hydraulic rod (312), a rack (314) connected to one end of the connecting rod (313), a gear (315) meshing on one side of the rack (314), a rotating shaft (316) connected to the middle position of the gear (315), and a pipe cover (317) connected to the outside of the rotating shaft (316). The sampling sealing unit also includes a connecting plate (318) and a guide plate (319).

7. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 6, characterized in that: The upper end of the connecting rod (313) is fixedly set at the lower end of the second hydraulic rod (312), the rack (314) is fixedly set at the lower end of the connecting rod (313), one side of the tube cap (317) is fixedly set on the rotating shaft (316), the rotating shaft (316) is rotatably connected to the connecting plate (318), and the connecting plate (318) is fixedly set on the inner side of the sampling connecting cylinder (22).

8. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 7, characterized in that: The blocking unit (4) includes a cover plate (41) that fits against the upper side of the holding tube (31). A second slide rod (42) is connected to one side of the cover plate (41). A connecting spring (43) is sleeved on the outer side of the second slide rod (42). A connecting block (44) is connected to the end of the second slide rod (42) away from the cover plate (41). The blocking unit (4) also includes a fixing slide rod (45).

9. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 8, characterized in that: The second slide rod (42) is slidably connected to the sampling connecting tube (22). The two ends of the connecting spring (43) are fixedly connected to the outside of the sampling connecting tube (22) and the side of the connecting block (44) near the second slide rod (42), respectively. The fixed slide rod (45) is slidably connected to the inside of the connecting block (44).

10. An anti-reflux endocrine secretion sampling device for critically ill patients according to claim 9, characterized in that: The hydraulic pipe (310) is fixedly installed on the inside of the housing (1), and the quantitative adjustment rod (34) is slidably connected to the support cylinder provided on the lower side of the holding tube (31).

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