Detection box and detection system for detecting liquid flow in medical flow guiding device

Abstract

The utility model discloses a detection box and a detection system for detecting liquid flow in a medical flow guiding device, the detection box comprises a top cover and a main body part which are connected through a pivoting mechanism, and the joint surfaces of the top cover and the main body part are respectively provided with a local concave shape. When the two parts are closed, a channel suitable for holding the catheter and a hollow space suitable for containing and fixing the fluid sensing device are formed. Wherein the top cover further comprises a top cover shell and a locking mechanism with an operating element, and the locking mechanism is configured to be capable of locking the top cover relative to the main body part when the top cover is in the closed position and can only be unlocked by pushing the operating element in the preset direction so as to open the top cover. According to the utility model, the reliability and robustness of liquid flow detection in a complex clinical medical environment can be improved, and the operation required for executing the detection becomes more convenient and efficient.

Description

Technical Field

[0001] The present disclosure relates to the field of medical technology, and specifically to detection of the flow of liquid (such as human body fluid) in a diversion device in clinical medicine, and more particularly to a detection box and a detection system for detecting the flow of liquid in a medical diversion device. Background Art

[0002] In clinical medicine, various fluid diversion devices are widely used, such as some devices that guide the flow of patient's body fluids or discharge from the body. For example, a typical such diversion device is a urinary catheter device, which generally includes a urinary drainage tube and a urine collection bag, and the two ends of the urinary drainage tube (which can be called the patient end and the collection end) are connected to the patient's indwelling urinary catheter and the urine collection bag respectively.

[0003] A major demand for such devices in clinical use is that the parameters of liquid flow in these diversion devices, such as flow rate and flow rate, often have important reference value for the patient's condition and treatment, as well as the determination of medical plans. Therefore, it is necessary to detect these liquid flow parameters so that relevant data can be monitored, recorded, observed, and analyzed based on such detection.

[0004] However, in the more complex clinical environment of a hospital, existing technologies have not yet provided a satisfactory solution that can achieve accurate and reliable detection of such fluid flow parameters while avoiding inconvenience or additional risks to patients, doctors, and nurses.

[0005] For example, most of the currently known solutions use weighing to detect the liquid flow of the diversion device. However, the disadvantages of this type of solution include the following aspects: the detection device based on weight measurement can only be attached near the container at the liquid collection end of the diversion device, such as the urine collection bag, and the detection device and the container containing the liquid need to maintain a relatively fixed position and avoid contact with other surrounding equipment to meet the need for accurate weight measurement; during the operation of the detection device, if the patient or medical staff nearby touches or moves the detection device or the liquid container, it will affect the detection data; when replacing the urine collection bag, for example, it is necessary to pay attention to manually record the data; the real-time performance of the detection data is poor, and usually only the cumulative value within a longer period of time can be obtained; before each arrangement of the detection device for detection, the preparation operation of installing the detection device in place is relatively cumbersome and inconvenient.

[0006] In addition, existing detection devices may also have the following disadvantages: the detection devices are inconvenient to operate due to the connection wires, which hinders the movement of patients, etc.; some detection devices themselves are relatively large in size, further occupying the limited clinical space; some detection devices have high requirements for the static fixation of their own position, and therefore need to be additionally fixed to the components of the bed through a bracket in order to complete more accurate detection; the detection accuracy is low, etc.

[0007] Therefore, there is an urgent need to provide a new detection device for detecting the flow of liquid in a medical diversion device, so as to at least partially alleviate or solve the above-mentioned problems and defects of the existing solutions. Utility Model Content

[0008] One object of the present disclosure is to propose a detection box for detecting the flow of liquid in a medical diversion device and a detection system including the detection box in order to overcome at least some of the various deficiencies of existing solutions or detection devices for detecting the flow of liquid in a medical diversion device as described above.

[0009] The present disclosure provides a detection box for detecting the flow of liquid in a medical diversion device, wherein the diversion device has a conduit for liquid to flow through, and is characterized in that a fluid sensing device is provided in the conduit, and the fluid sensing device is configured to sense the flow of liquid in the conduit and generate a corresponding electrical signal based on the flow of liquid;

[0010] The detection box comprises a top cover and a main body connected via a pivot mechanism, wherein the pivot mechanism is configured to allow the top cover to pivot about a pivot axis between a closed position and an open position relative to the main body;

[0011] The top cover and the main body part respectively include a joint surface with a partial concave shape, the partial concave shape includes a groove extending transversely through the joint surface and a concave portion communicating with the groove, when the top cover is in the closed position, the grooves of the two jointly form a channel suitable for holding the conduit, and the concave portions of the two jointly form a hollow space for accommodating and fixing the fluid sensing device;

[0012] Furthermore, the main body portion further comprises a receiving circuit having electrical contacts capable of being electrically connected to the fluid sensing device fixed in the hollow space, so as to obtain the electrical signal from the fluid sensing device;

[0013] The top cover also includes a top cover shell and a locking mechanism with an operating element, wherein the operating element is arranged at a distal portion of the top cover shell opposite to the pivot axis and an outer surface of the operating element is substantially flush with the distal portion of the top cover shell, and the locking mechanism is constructed to be able to lock the top cover relative to the main body portion when the top cover is in the closed position, and can only be unlocked by pushing the operating element in a predetermined direction to open the top cover, wherein the predetermined direction is perpendicular to an extension direction of the pivot axis and extends substantially along an outer surface of the distal portion of the top cover shell.

[0014] The detection box according to the present disclosure is mainly composed of a top cover and a main body connected via a pivot mechanism, which avoids the risk of a part of the detection box being disengaged or lost in a crowded environment such as a hospital ward. In addition, the design of the top cover of the detection box and its locking mechanism makes the operating element of the locking mechanism extend roughly along the outer surface of the distal end portion of the top cover shell in any state, which in turn avoids the risk of accidental opening of the detection box during operation caused by the patient, doctor, nurse, etc. accidentally touching the operating element and actuating it. This feature is very beneficial and user-friendly for the use environment of the hospital ward, because it means that there is no need to pay attention to the detection box itself during the operation of the detection box (for example, monitoring the flow of body fluids of the patient or the flow of physiological fluids delivered to the patient).

[0015] According to one embodiment of the present disclosure, the main body portion further comprises a plate-like protrusion, which protrudes upward from the engagement surface of the main body portion at a distal end opposite to the pivot axis and forms a portion of a distal end surface of the main body portion for attaching a display screen;

[0016] The top cover further includes a plate-shaped recessed portion having complementary shapes to the plate-shaped protruding portion and having two adjacent surfaces substantially perpendicular to the engaging surface.

[0017] According to one embodiment of the present disclosure, the top cover shell has an upwardly convex arc-shaped top surface, the arc-shaped top surface has a notch at a distal end opposite to the pivot axis, and the shape of the notch is adapted to the shape of the plate-shaped protrusion.

[0018] According to one embodiment of the present disclosure, the operating element is arranged on an edge portion of the top cover housing adjacent to the notch, and the edge portion has an upward inclination angle relative to the engagement surface, and the inclination angle is between 15 degrees and 60 degrees. Preferably, the inclination angle is between 20 degrees and 40 degrees.

[0019] One advantage of the detection box according to this embodiment is that the design of the edge portion of the top cover shell makes the direction in which the operator pushes the operating element (such as a slider) to unlock so that the force applied by the operator will naturally provide a large enough component in the direction of opening the top cover (such as upward) so that the top cover is opened with the unlocking operation. Thus, a process with a high success rate that can basically complete the unlocking and opening of the top cover at the same time through a single action of the operator is provided. In addition, compared with the unlocking element position set on the top surface or front of the detection box, the risk of accidental touch of this design is significantly smaller.

[0020] In other words, this design allows for extremely simple and quick opening / closing of the top cover. To open the top cover, basically only the user needs to push the operating element in a predetermined direction (for example, with the thumb while holding the test box) to unlock it and use the force of the pushing operation to push the top cover open. This means that the user actions required for unlocking and opening the top cover are simple and continuous, and there is almost no inconvenience or jamming. As for closing the top cover, the user only needs to close the top cover in any way.

[0021] According to one embodiment of the present disclosure, the locking mechanism further includes:

[0022] a stopper protruding from an adjacent surface of the plate-like protrusion;

[0023] A latch portion, wherein the latch portion is arranged on the plate-shaped recessed portion and is connected to the operating element so as to be able to move from a locked position to an unlocked position as the operating element moves in the predetermined direction, wherein, in the locked position, the latch portion exceeds the adjacent surface of the plate-shaped recessed portion to a first protruding height, and in the unlocked position, the latch portion does not exceed the adjacent surface of the plate-shaped recessed portion.

[0024] The locking mechanism may optionally be further designed so that when the top cover is in the closed position, the gap between the two adjacent surfaces does not exceed 3 mm, and the first protrusion height is between 0.5 mm and 2 mm.

[0025] This design ensures that the top cover can be locked in the closed position very safely, and the operation stroke required for unlocking is very short, which makes it easier for the user to complete the unlocking operation with a finger while holding the test box. In addition, this design of the locking mechanism also allows the user to close the top cover in any way (i.e., the top cover is in a closed or sealed position relative to the main body), and the latch part and the stop part will engage and prevent the top cover from opening.

[0026] According to one embodiment of the present disclosure, the groove (i.e., the channel adapted to hold the conduit) is offset by a first offset distance relative to a centerline of the engagement surface parallel to the pivot axis. More specifically, the groove separates the engagement surface of the top cover into a first flat surface portion abutting the plate-like protrusion in the closed position and a second flat surface portion abutting the pivot axis, the size of the second flat surface portion being between 1.3 and 3 times the size of the first flat surface portion, and preferably between 1.5 and 2.5 times.

[0027] This embodiment provides an asymmetric design suitable for keeping the channel of the catheter off-center relative to the engagement surface, making it impossible for an inadvertent operation such as the fluid sensing device and the catheter to be placed into the detection box in reverse.

[0028] According to an embodiment of the present disclosure, the groove is offset by a second offset distance relative to a center line of the recessed portion parallel to the pivot axis, wherein the offset direction of the second offset distance is the same as that of the first offset distance.

[0029] The present disclosure also provides a detection system for detecting liquid flow in a medical diversion device, which includes a detection box having some or all of the various features described above and the fluid sensing device disposed in or connected to the catheter. When performing the detection, the detection box and the fluid sensing device are attached to each other as described above.

[0030] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0031] The positive and progressive effects of this disclosure are:

[0032] The detection box for detecting the flow of liquid in a medical diversion device and the detection system including the detection box according to the present disclosure help improve the reliability and robustness of the detection of liquid flow in the complex environment of clinical medicine, and make the operations required to perform such detection more convenient and efficient. In addition, the risk of the components of the detection box itself being detached or lost is reduced, and the risk of misoperation and mis-actuation related to the switch of the detection box is also reduced or even avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure schematically shows a three-dimensional view of a detection box for detecting the flow of liquid in a medical drainage device in an open state according to a preferred embodiment of the present disclosure.

[0034] Figure 2 Schematically shows Figure 1 A top view of the detection box in FIG.

[0035] Figure 3 Schematically shows Figure 1 Front view of the detection box in .

[0036] Figure 4 Schematically shows Figure 1 Side view of the detection box in FIG. 1 from left to right.

[0037] Figure 5 Schematically shows Figure 1 A top view of the detection box in the closed state.

[0038] Figure 6 Schematically shows Figure 1 Front view of the detection box in the closed state.

[0039] Figure 7 Schematically shows Figure 1 Side view of the detection box in the closed state, looking from left to right.

[0040] Description of reference numerals:

[0041] 1: Top cover

[0042] 2: Main part

[0043] 3: Catheter connector

[0044] 4: Fluid sensing device

[0045] 5: Pivot mechanism

[0046] 11: Joining surface

[0047] 111: First flat surface portion

[0048] 112: Second flat surface portion

[0049] 12: Groove

[0050] 13: Locking mechanism

[0051] 131: Operating elements

[0052] 132: Latch

[0053] 14: Plate-shaped depression

[0054] 15: Top cover shell

[0055] 16: Block-shaped depression

[0056] 21: Joining surface

[0057] 211: third flat surface portion;

[0058] 212: Fourth flat surface portion:

[0059] 22: Groove

[0060] 23: Block-shaped depression

[0061] 24: Plate-shaped protrusion;

[0062] 25: Display DETAILED DESCRIPTION

[0063] The preferred embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings of the specification. The following description is exemplary and not a limitation of the present invention. Any other similar situations also fall within the protection scope of the present invention.

[0064] In the following detailed description, directional terms, such as "left", "right", "up", "down", "front", "back", etc., are used with reference to the directions described in the drawings. The components of the embodiments of the present invention can be placed in a variety of different directions, and the directional terms are used for illustrative purposes rather than limiting.

[0065] From the above description and the following more detailed exemplary description of the detection box according to the preferred embodiment of the present disclosure, those skilled in the art will be able to understand that the present disclosure can be used to detect liquid flow in medical diversion devices, especially in relatively complex and restrictive application environments such as clinical medicine, and has many advantages.

[0066] Figure 1-4 Multiple views of a detection box for detecting the flow of liquid in a medical diversion device according to a preferred embodiment of the present disclosure are schematically shown, wherein the detection boxes are all in an open state. Figure 5-7 FIG. 4 schematically shows a plurality of views of the detection box in a closed state.

[0067] Figure 1-4 Schematically shows a fluid sensing device suitable for being arranged in a detection box and a catheter connector 3 connected to the fluid sensing device and optionally integrated into one body, and the catheter connector 3 can be connected to a catheter (not shown) for a liquid (e.g., a patient's body fluid or a physiological fluid for infusion) to flow through the medical diversion device. It can be understood that the fluid sensing device 4 is arranged in the catheter or connected to the catheter via the catheter connectors 3 on opposite sides, and is configured to sense the flow of liquid in the catheter and generate a corresponding electrical signal based on the flow of liquid.

[0068] Nowadays, since there are already low-cost fluid sensing devices 4 that can achieve the above-mentioned measurements in the art, it is completely feasible to pre-set or integrate such fluid sensing devices 4 in relevant medical catheter products in the medical field without incurring significantly high costs. Examples of the fluid sensing devices 4 will be described below.

[0069] refer to Figure 1-7 As shown, a preferred embodiment according to the present disclosure includes a top cover 1 and a main body 2 connected via a pivot mechanism 5, and the pivot mechanism 5 is constructed to allow the top cover 1 to pivot around a pivot axis relative to the main body 2 between a closed position and an open position.

[0070] The top cover 1 and the main body 2 respectively include joint surfaces 11 and 21 with a local concave shape, and the local concave shape includes grooves 12 and 22 extending transversely through the joint surfaces 11 and 21 and block-shaped recessed parts 16 and 23 connected with the grooves 12 and 22. When the top cover 1 is in the closed position, the grooves 12 and 22 of the two jointly form a channel suitable for holding the catheter, and the block-shaped recessed parts 11 and 21 of the two jointly form a hollow space for accommodating and fixing the fluid sensing device. In addition, the main body 2 also includes a receiving circuit (not shown), which has electrical contacts that can be electrically connected to the fluid sensing device fixed in the hollow space, so as to obtain electrical signals from the fluid sensing device.

[0071] Especially refer to Figure 1 and 2 As shown, the top cover 1 also includes a top cover shell 15 and a locking mechanism 13 with an operating element 131, the operating element 131 is arranged at the distal end portion of the top cover shell 15 opposite to the pivot axis and the outer surface of the operating element 131 is substantially flush with the distal end portion of the top cover shell 15, the locking mechanism 13 is constructed to be able to lock the top cover 1 relative to the main body 2 when the top cover 1 is in a closed position, and can only be unlocked by pushing the operating element 131 in a predetermined direction to open the top cover 1, wherein the predetermined direction is perpendicular to the extension direction of the pivot axis and extends substantially along the outer surface of the distal end portion of the top cover shell 15. Figure 1 and 2 As shown, the "distal end" or "distal portion" referred to herein generally refers to the portion away from the pivot axis, wherein the pivot axis is generally located adjacent to the back of the detection box, and the distal portion is generally located near the front of the detection box when the top cover is in the closed state.

[0072] It should be understood that the test box is mainly composed of a top cover 1 and a main body 2 connected via a pivot mechanism 5, which avoids the risk of the components of the test box being detached from the test box and lost. And, more importantly, refer to Figure 5-7As shown, the design of the top cover 1 of the detection box and its locking mechanism 13 makes the operating element 131 of the locking mechanism 13 extend roughly along the outer surface of the distal portion of the top cover shell 15 in any state, which in turn minimizes the risk of the detection box being accidentally opened during operation due to the patient, doctor, nurse, etc. accidentally touching and actuating the operating element 131. This feature is very beneficial and user-friendly for the use environment of the hospital ward, because it means that there is no need to pay attention to the detection box itself during the operation of the detection box (for example, monitoring the flow of body fluids of the patient or the flow of physiological fluids delivered to the patient).

[0073] refer to Figure 1 and 2 As shown, according to a preferred embodiment of the present disclosure, the main body portion 2 further includes a plate-like protrusion 24, which protrudes upward from the engagement surfaces 11, 21 of the main body portion 2 at the distal end opposite to the pivot axis and forms a portion of the distal end surface of the main body portion 2 for attaching a display screen 25. The top cover 1 further includes a plate-like recessed portion 14, and the plate-like recessed portion 14 and the plate-like protrusion 24 have complementary shapes and have two adjacent surfaces that are substantially perpendicular to the engagement surfaces 11, 21. The display screen 25 can provide patients or medical personnel with an easy-to-observe flow rate / flow monitoring data, such as the total flow in the past hour or the cumulative flow in the past 24 hours. And with reference to Figure 3 and 6 As shown, the plate-like protrusion 24 forms a part of the distal end surface of the main body portion 2 and can also provide a larger area for arranging a display screen on the front side of the detection box, so as to provide a larger display screen.

[0074] Further preferably, in combination with reference Figure 1-2 As shown in FIG. 4-7, the top cover housing 15 has an upwardly convex arc-shaped top surface, and the arc-shaped top surface has a notch at the far end opposite to the pivot axis ( Figure 1-2 The notch can be seen in the figure), and the shape of the notch is adapted to the shape of the plate-like protrusion 24.

[0075] Further preferably, in combination with reference Figure 1-2 As shown in FIGS. 5-7 , the operating element 131 is arranged at the edge portion of the top cover housing 15 adjacent to the notch, and the edge portion has an upward inclination angle relative to the joint surfaces 11 , 21 , and the inclination angle is between 15 degrees and 60 degrees. Preferably, the inclination angle is between 20 degrees and 40 degrees.

[0076] The advantage of adopting the above-mentioned preferred design and designing the edge portion mentioned above to have an upward inclination angle of about 15-60 degrees (preferably 20-40 degrees) relative to the engagement surfaces 11, 21 is that the design of the edge portion of the top cover shell 15 allows the operator to push the operating element 131 (for example, in the form of a slider) in the unlocking direction so that the force applied by the operator will naturally provide a sufficiently large component force in the direction of opening the top cover 1 (for example, upward) so that the top cover 1 is opened along with the unlocking operation, refer to Figure 5 This provides a process with a very high success rate in which the unlocking and opening of the top cover 1 can be basically completed simultaneously through a single action of the operator.

[0077] In other words, this design allows for an extremely simple and quick operation of opening / closing the top cover 1. To open the top cover 1, it is basically only necessary to (for example, by using the thumb while holding the test box) push the operating element 131 in a predetermined direction to release the lock and use the force of the pushing operation to push the top cover 1 to open, for example Figure 5 In the view shown, pushing the operating element 131 upward will naturally generate an outward component force perpendicular to the paper surface (a component force toward the top of the detection box), which will naturally push the unlocked top cover 1 to open.

[0078] This means that the user actions required for unlocking and opening the top cover 1 are simple and continuous, and there is almost no inconvenience or lag in operation. As for closing the top cover 1, the user only needs to close the top cover 1 in any way.

[0079] As for the engaging surfaces 11 and 21 with partial concave shapes respectively provided on the top cover 1 and the main body 2, it can be understood that when the top cover 1 is in the closed position and is closed on the main body 2, the channel formed by the grooves 12 and 22 of the two will inevitably hold the catheter therein, and the hollow space formed by the block-shaped recessed parts 16 and 23 of the two will inevitably accommodate and fix the fluid sensing device 4 therein, so the operator will not have to worry about any inconspicuous misoperation. Because, if the catheter or the fluid sensing device 4 is not in the correct position, then the top cover 1 will obviously not be able to cover the main body 2 directly so that the engaging surfaces 11 and 21 of the two engage with each other, and this is almost impossible to be ignored by any operator.

[0080] In addition, the above detection box can be made of lightweight materials, and due to the above installation method and principle of attachment to the catheter and the fluid sensing device 4 and the simple structure of the detection box itself, the detection box can be made to have a very small size to save the space it occupies. At the same time, in this installation, the catheter can be regarded as a carrier or carrier for carrying or hanging the detection box, so there is no need to additionally equip a bracket for mounting the detection box.

[0081] Similarly, once the top cover 1 and the main body 2 are closed together, Figure 5-7 In the closed state shown, there is generally no relative movement between the detection box and the catheter or fluid sensing device 4, because the locking mechanism 13 will lock the position of the top cover 1 relative to the main body 2. Therefore, the use of the above detection box to perform fluid detection in the pipeline has strong robustness and is unlikely to be affected by accidental contact by surrounding people or equipment.

[0082] It is understandable that the block-shaped recessed portions 16 and 23 can be adapted to the shape of the fluid sensing device 4. For example, in the example shown in the figure, the two have a substantially rectangular planar shape. Since the fluid sensing device 4 usually has a shape or cross-sectional shape that is inconsistent with the catheter, the matching shapes of the block-shaped recessed portions 16 and 23 and the fluid sensing device 4 help prevent any movement of the detection box relative to the catheter or the fluid sensing device 4, and are particularly suitable for medical diversion devices using flexible catheters.

[0083] According to a preferred embodiment of the present disclosure, the locking mechanism 13 further comprises:

[0084] a stopper (not shown in the figure), the stopper protruding from the adjacent surface of the plate-like protrusion 24;

[0085] The latch portion 132 is arranged on the plate-shaped recessed portion 14 and is connected to the operating element 131, so that it can move from the locked position to the unlocked position as the operating element 131 moves in a predetermined direction, wherein, in the locked position, the latch portion 132 exceeds the adjacent surface of the plate-shaped recessed portion 14 to reach a first protruding height, and in the unlocked position, the latch portion 132 does not exceed the adjacent surface of the plate-shaped recessed portion 14.

[0086] Although the stopper is not shown in the figure, it can be understood that the position where the stopper is set and the direction in which it protrudes laterally from the plate-like protrusion 24 correspond to the position where the latch portion 132 is set. The stopper has an appropriate shape so that it can contact the latch portion 132 in the locked position or the closed state of the top cover 1 to prevent the top cover 1 from opening upward.

[0087] The locking mechanism 13 is optionally further designed so that when the top cover 1 is in the closed position, the gap between the two adjacent surfaces does not exceed 3 mm, and the first protrusion height is between 0.5 mm and 2 mm. This design ensures that the top cover 1 can be safely locked in the closed position, and the operation stroke required for unlocking is very short, which is more convenient for the user to complete the unlocking operation with a finger while holding the test box. In addition, this design of the locking mechanism 13 also allows the user to close the top cover 1 in any way (i.e., the closed or closed position of the top cover 1 relative to the main body 2), and the latch portion 132 and the stop portion will engage and prevent the top cover 1 from opening.

[0088] According to a preferred embodiment of the present disclosure, Figure 1-2 In particular Figure 2 As shown, the grooves 12, 22 (i.e., the channels adapted to hold the conduits) are offset by a first offset distance relative to the center lines of the engagement surfaces 11, 21 parallel to the pivot axis. More specifically, the grooves 12, 22 separate the engagement surfaces 11, 21 of the top cover 1 into a first flat surface portion 111 adjacent to the plate-like protrusion 24 in the closed position and a second flat surface portion 112 adjacent to the pivot axis, the size of the second flat surface portion 112 being between 1.3 and 3 times the size of the first flat surface portion 111, and preferably between 1.5 and 2.5 times.

[0089] It can be understood that the joining surfaces 11, 21 of the main body part 2 have a structure that is completely corresponding to the joining surfaces 11, 21 of the above-mentioned top cover 1, that is, the grooves 12, 22 separate the joining surfaces 11, 21 of the main body part 2 into a third flat surface portion 211 adjacent to the plate-like protrusion 24 and a fourth flat surface portion 212 adjacent to the pivot axis, and the size of the fourth flat surface portion 212 is between 1.3 times and 3 times the size of the third flat surface portion 211, and preferably between 1.5 times and 2.5 times.

[0090] This preferred embodiment provides an asymmetric design suitable for keeping the passage of the catheter off-center relative to the engagement surfaces 11, 21, so that the erroneous operation of placing the fluid sensing device together with the catheter into the detection box in reverse is unlikely to occur.

[0091] For example, the first offset distance reaches the width of the entire joint surface 11, 21 (ie Figure 2 or, the offset makes the size difference between the first flat surface portion 111 and the second flat surface portion 112 more significant, exceeding 1 / 3 (preferably 1 / 2) of the smaller flat surface portion of the two. In addition, the above-mentioned design of the relatively smaller size of the flat surface portion on the side close to the pivot axis also facilitates the operation of placing the fluid sensing device 4 together with the catheter into the detection box or taking it out of the detection box.

[0092] Reference again Figure 1 and 2 As shown, according to a preferred embodiment of the present disclosure, the grooves 12 and 22 are offset by a second offset distance relative to the center line of the recessed portion parallel to the pivot axis, wherein the offset direction of the second offset distance is the same as that of the first offset distance. For example, the second offset distance reaches the width dimension (i.e. Figure 2The vertical dimension of the device is 1 / 20 or more, preferably 1 / 8 or more.

[0093] According to some preferred embodiments of the present disclosure, the fluid sensing device 4 is a liquid pressure sensing device, which is configured to sense the pressure difference between the inflow pressure and the outflow pressure of the liquid flowing through, and generate a corresponding electrical signal based on the pressure difference. For example, the fluid sensing device 4 may include a channel portion and a fluid sensor chip, which may be, for example, an existing MEMS micro flow sensor chip.

[0094] The fluid sensing device 4 or the chip contained therein or the processing unit contained in the detection box may be pre-installed with a flow calculation algorithm, and the flow calculation algorithm includes a flow velocity-pressure difference function. Thus, the liquid flow velocity and / or liquid flow rate passing through the liquid pressure sensing device can be calculated according to the flow velocity-pressure difference function.

[0095] According to some preferred embodiments of the present disclosure, a detection system for detecting the flow of liquid in a medical diversion device is also provided, the detection system comprising any detection box as described above and a fluid sensing device 4 disposed in a catheter. It can be understood that in order to make more full use of the real-time liquid flow parameters that can be obtained by the detection box described above, the detection system can further be provided with a host computer connected to the detection box in a wireless communication manner, and the host computer can remotely obtain the real-time data obtained locally by the detection box, and perform further data analysis, storage, aggregation or analysis.

[0096] The detection box and detection system according to the above-mentioned embodiments of the present disclosure are helpful to improve the reliability and robustness of the detection of liquid flow in the complex environment of clinical medicine, and make the operations required to perform such detection more convenient and efficient. In addition, the risk of the components of the detection box itself being detached or lost is reduced, and the risk of misoperation and mis-actuation related to the switch of the detection box is also reduced or even avoided.

[0097] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A detection kit for detecting the flow of liquid in a medical diversion device, wherein the diversion device has a conduit for the liquid to flow through, characterized in that: A fluid sensing device is disposed in the conduit, and the fluid sensing device is configured to sense the flow of liquid in the conduit and generate a corresponding electrical signal based on the flow of liquid; The detection box comprises a top cover and a main body connected via a pivot mechanism, wherein the pivot mechanism is configured to allow the top cover to pivot about a pivot axis between a closed position and an open position relative to the main body; The top cover and the main body part respectively include a joint surface with a partial concave shape, the partial concave shape includes a groove extending transversely through the joint surface and a concave portion communicating with the groove, when the top cover is in the closed position, the grooves of the two jointly form a channel suitable for holding the conduit, and the concave portions of the two jointly form a hollow space for accommodating and fixing the fluid sensing device; Furthermore, the main body portion further comprises a receiving circuit having electrical contacts that can be electrically connected to the fluid sensing device fixed in the hollow space, so as to obtain the electrical signal from the fluid sensing device; The top cover also includes a top cover shell and a locking mechanism with an operating element, wherein the operating element is arranged at a distal portion of the top cover shell opposite to the pivot axis and an outer surface of the operating element is substantially flush with the distal portion of the top cover shell, and the locking mechanism is constructed to be able to lock the top cover relative to the main body portion when the top cover is in the closed position, and can only be unlocked by pushing the operating element in a predetermined direction to open the top cover, wherein the predetermined direction is perpendicular to an extension direction of the pivot axis and extends substantially along an outer surface of the distal portion of the top cover shell.

2. The detection kit for detecting the flow of liquid in a medical flow guide device according to claim 1, characterized in that: The main body portion further comprises a plate-shaped protrusion, which protrudes upward from the joint surface of the main body portion at a distal end opposite to the pivot axis and forms a part of the distal end surface of the main body portion for attaching a display screen; The top cover further includes a plate-shaped recessed portion having complementary shapes to the plate-shaped protruding portion and having two adjacent surfaces substantially perpendicular to the engaging surface.

3. The detection kit for detecting the flow of liquid in a medical flow guide device according to claim 2, characterized in that: The top cover shell has an upwardly convex arc-shaped top surface, and the arc-shaped top surface has a notch at a distal end opposite to the pivot axis, and the shape of the notch is matched with the shape of the plate-shaped protrusion.

4. The detection kit for detecting the flow of liquid in a medical flow guide device according to claim 3, characterized in that: The operating element is arranged at an edge portion of the top cover housing adjacent to the notch, and the edge portion has an upward inclination angle relative to the engagement surface, and the inclination angle is between 15 degrees and 60 degrees.

5. The detection kit for detecting the flow of liquid in a medical flow guide device according to claim 4, characterized in that: The inclination angle is between 20 degrees and 40 degrees.

6. The detection kit for detecting the flow of liquid in a medical flow guide device according to claim 2, characterized in that: The locking mechanism also includes: a stopper protruding from an adjacent surface of the plate-like protrusion; A latch portion, wherein the latch portion is arranged on the plate-shaped recessed portion and is connected to the operating element so as to be able to move from a locked position to an unlocked position as the operating element moves in the predetermined direction, wherein, in the locked position, the latch portion exceeds the adjacent surface of the plate-shaped recessed portion to a first protruding height, and in the unlocked position, the latch portion does not exceed the adjacent surface of the plate-shaped recessed portion.

7. The detection kit for detecting the flow of liquid in a medical flow guide device according to claim 6, characterized in that: When the top cover is in the closed position, the gap between the two adjacent surfaces does not exceed 3 mm, and the first protrusion height is between 0.5 mm and 2 mm.

8. The detection kit for detecting the flow of liquid in a medical flow guide device according to claim 2, characterized in that: The groove is offset by a first offset distance relative to a centerline of the engagement surface parallel to the pivot axis.

9. The detection kit for detecting the flow of liquid in a medical flow guide device according to claim 8, characterized in that: The groove separates the engagement surface of the top cover into a first flat surface portion adjacent to the plate-like protrusion in the closed position and a second flat surface portion adjacent to the pivot axis, the size of the second flat surface portion being between 1.3 and 3 times the size of the first flat surface portion.

10. The detection kit for detecting the flow of liquid in a medical flow guiding device according to claim 9, characterized in that: The size of the second planar surface portion is between 1.5 and 2.5 times the size of the first planar surface portion.

11. The detection kit for detecting the flow of liquid in a medical flow guiding device according to claim 8, characterized in that: The groove is offset by a second offset distance relative to a center line of the recessed portion parallel to the pivot axis, wherein the offset direction of the second offset distance is the same as that of the first offset distance.

12. A detection system for detecting the flow of liquid in a medical diversion device, characterized in that: The detection system comprises a detection box for detecting the flow of liquid in a medical diversion device as described in any one of claims 1 to 11 and the fluid sensing device disposed in or connected to the catheter.

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