Bubble detection module and infusion device

Abstract

The utility model relates to a bubble detection module and an infusion device. The bubble detection module comprises a bracket, a transmitting end and a receiving end, the support is provided with a groove used for containing an infusion tube, and the groove penetrates through the support in the length direction of the groove. A cutting groove is formed in the bottom wall of the groove; the transmitting end and the receiving end are both arranged on the support, and the transmitting end and the receiving end are located on the two sides of the groove in the width direction; and the receiving end is used for receiving the ultrasonic waves emitted by the emitting end. Through the arrangement of the cutting groove, the transmission of ultrasonic waves from the bottom wall of the groove to the receiving end can be reduced (weakened), so that the difference value between the strength of a signal received by the receiving end when no bubbles exist in the infusion tube and the strength of a signal received by the receiving end when bubbles exist in the infusion tube can be increased, and the difference value can be recognized more easily; and the problem of missing detection of bubbles is effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a bubble detection module and an infusion device. Background Technology

[0002] An infusion device is a medical device used for intravenous infusion. If air bubbles enter the body during the infusion process, they can harm human health. Therefore, infusion devices are equipped with corresponding air bubble detection modules to detect whether there are air bubbles in the infusion tubing during the infusion process.

[0003] In existing technologies, bubble detection modules typically include a bracket, a transmitter, and a receiver. The bracket has a groove that extends through the bracket along its length. The transmitter and receiver are both connected to the bracket and are located on opposite sides of the groove's width.

[0004] In use, the infusion tube is placed in the groove and pressed against the bottom surface of the groove by the corresponding pressing module. The transmitting end can emit ultrasonic signals, which are received by the receiving end after passing through the infusion tube. The signal intensity received by the receiving end when there are no air bubbles in the infusion tube (i.e., it is full of liquid) is different from the signal intensity received when there are air bubbles in the infusion tube (or the infusion tube is empty). This difference allows the determination of whether there are air bubbles in the infusion tube.

[0005] However, existing bubble detection modules are prone to missing bubbles, which in turn affects the use of infusion devices. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a bubble detection module and infusion device, which are prone to missing bubble detection in existing bubble detection modules.

[0007] To address the aforementioned issues, this invention provides a bubble detection module, comprising a support, a transmitter, and a receiver. The support has a groove for accommodating an infusion tube, the groove extending through the support along its length. A notch is provided on the bottom wall of the groove. The transmitter and receiver are both mounted on the support, located on opposite sides of the groove in its width direction. The receiver is used to receive ultrasonic waves emitted by the transmitter.

[0008] Optionally, the groove is provided on the bottom surface of the groove and extends through the support along the depth direction of the groove; and / or, the groove is spaced apart from both side walls of the groove in the width direction of the groove.

[0009] Optionally, both ends of the cutout protrude from the emitting end in the length direction of the groove, and / or both ends of the cutout protrude from the receiving end.

[0010] Optionally, the bubble detection module further comprises an ultrasonic wave blocking member, which is arranged in the cutout.

[0011] Optionally, the ultrasonic wave blocking member completely fills the cutout, and / or the ultrasonic wave blocking member is any one of a metal member, a wooden member and a ceramic member.

[0012] Optionally, the emitting end is located outside the groove, and / or the receiving end is located outside the groove.

[0013] Optionally, in the depth direction of the groove, the support has oppositely arranged first and second surfaces; the groove is arranged on the first surface; the second surface is provided with first and second accommodating cavities; in the width direction of the groove, the first and second accommodating cavities are arranged on both sides of the groove; the cavity wall of the first accommodating cavity comprises a first side wall between the first accommodating cavity and the groove, and the cavity wall of the second accommodating cavity comprises a second side wall between the second accommodating cavity and the groove; the emitting end is arranged in the first accommodating cavity and located on the first side wall; and the receiving end is arranged in the second accommodating cavity and located on the second side wall.

[0014] Optionally, the bubble detection module further comprises a connecting member; the connecting member comprises a first connecting plate, which is connected with the support and is provided with a first clamping structure for clamping cooperation with a supporting object; a part of the first connecting plate is arranged in the first accommodating cavity, and a part of the first connecting plate is located in the second accommodating cavity.

[0015] Optionally, the connecting member further comprises second, third and fourth connecting plates; the second, third and fourth connecting plates are all connected with the support, the second connecting plate is provided with a second clamping structure for clamping cooperation with the supporting object; a part of the second connecting plate is arranged in the first accommodating cavity, and a part of the second connecting plate is located in the second accommodating cavity; the first and second connecting plates are arranged in the length direction of the groove; the third and fourth connecting plates are arranged in the width direction of the groove; the third connecting plate is arranged in the first accommodating cavity and connected with the first and second connecting plates respectively; and the fourth connecting plate is arranged in the second accommodating cavity and connected with the first and second connecting plates respectively.

[0016] To solve the above problems, in one aspect, the utility model provides a kind of infusion device, including pressing module and the bubble detection module described in any one of the above;The pressing module is used to press the infusion tube on the bottom surface of the groove.

[0017] In the bubble detection module and infusion device provided in the utility model embodiment, the transmission of ultrasonic wave from the bottom wall of the groove to the receiving end can be reduced (weakened) by the setting of the cut groove, so that the difference between the intensity of the signal received by the receiving end when there is no bubble in the infusion tube and the intensity of the signal received by the receiving end when there is bubble in the infusion tube can be increased, so that the difference can be more easily identified, and the problem of bubble missed detection can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the structure diagram of the bracket of the bubble detection module provided in an embodiment of the utility model;

[0019] Figure 2 is the structure diagram of the bubble detection module provided in an embodiment of the utility model Figure 1 ;

[0020] Figure 3 is the structure diagram of the bubble detection module provided in an embodiment of the utility model Figure 2 ;

[0021] Figure 4 is Figure 3 A-A cross-sectional view in the

[0022] Figure 5 is the cooperation diagram of the bubble detection module and supporting object provided in an embodiment of the utility model Figure 1 ;

[0023] Figure 6 is the cooperation diagram of the bubble detection module and supporting object provided in an embodiment of the utility model Figure 2 .

[0024] The reference signs in the specification are as follows:

[0025] 10, bubble detection module;20, infusion tube;30, pressing module;40, supporting object;50, cover plate module;

[0026] 1, bracket;11, groove;12, cut groove;13, first surface;14, second surface;15, first accommodating cavity;16, second accommodating cavity;17, first side wall;18, second side wall;19, limiting protrusion;

[0027] 2, transmitting end;

[0028] 3, receiving end;

[0029] 4. Ultrasonic blocking components;

[0030] 5. Connector; 51. First connecting plate; 511. First snap-fit ​​structure; 52. Second connecting plate; 521. Second snap-fit ​​structure; 53. Third connecting plate; 54. Fourth connecting plate;

[0031] 6. Pressing block; 61. Pressing part; 62. Blocking part;

[0032] 7. Elastic components;

[0033] 8. Sealing plate; 81. Recessed structure; 82. Clearance hole;

[0034] 9. Pressure plate. Detailed Implementation

[0035] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] like Figures 1 to 6 As shown, in one embodiment, the bubble detection module 10 includes a support 1, a transmitter 2, and a receiver 3. The support 1 has a groove 11 extending through it along its length, which is used to accommodate the infusion tube 20. A groove 12 is provided on the bottom wall of the groove 11. The transmitter 2 and receiver 3 are both mounted on the support 1, and are located on opposite sides of the width of the groove 11. The transmitter 2 emits ultrasonic waves, and the receiver 3 receives the ultrasonic waves emitted by the transmitter 2.

[0037] The signal strength received by receiver 3 when there are no air bubbles in infusion tube 20 is defined as a first value, and the signal strength received by receiver 3 when there are air bubbles in infusion tube 20 is defined as a second value. In the prior art, the ultrasonic waves emitted by transmitter 2 are transmitted to receiver 3 from the bottom surface of groove 11 and the groove wall (i.e., bottom wall) where the bottom surface of groove 11 is located. This reduces the difference between the first and second values, making it impossible for the controller connected to the bubble detection module 10 to recognize the difference, thus leading to the problem of missed bubble detection. Here, the bottom surface of groove 11 refers to the surface of its bottom wall used to enclose and form groove 11.

[0038] In this embodiment, the groove 12 reduces (weakens) the transmission of ultrasonic waves from the bottom wall of the groove 11 to the receiving end 3, thereby increasing the difference between the first value and the second value, enabling the corresponding controller to identify the difference, and thus effectively avoiding the problem of missed bubble detection.

[0039] In use, the infusion tube 20 is passed through the bracket 1 along the length direction of the groove 11 from the groove 11, and then is pressed on the bottom surface of the groove 11 by the corresponding pressing module 30. In addition, the bubble detection module 10 is connected with the corresponding controller, so as to control the working of the bubble detection module 10 through the controller. Specifically, the controller is electrically connected with the transmitting end 2 and the receiving end 3. The controller can control the working of the transmitting end 2 and can receive the signal of the receiving end 3, so as to control the working of other parts of the infusion device.

[0040] In an embodiment, the bottom surface of the groove 11 can be an arc surface, and at this time, the cross section of the groove 11 is U-shaped. The radius of the arc surface can be set to match the infusion tube 20, such as the diameters of the two are the same. In addition, the width of the groove 11 is greater than or equal to the diameter of the infusion tube 20, and the width of the groove 11 can also be matched with the infusion tube 20, such as the diameters of the two are the same.

[0041] In addition, the length direction of the groove 11 can be perpendicular to the width direction of the groove 11. Figure 3 And Figure 4 In the direction shown, the length direction of the groove 11 is parallel to the X axis, and the width direction of the groove 11 is parallel to the Y axis.

[0042] In an embodiment, the groove 12 is arranged on the bottom surface of the groove 11, and along the depth direction of the groove 11, the groove 12 penetrates the bracket 1, that is, the groove 12 penetrates the bottom wall of the groove 11; and / or, in the width direction of the groove 11, the groove 12 is arranged spaced apart from the two side walls of the groove 11.

[0043] In Figure 3 And Figure 4 In the direction shown, the depth direction of the groove 11 is parallel to the Z axis. The groove 12 penetrates the bracket 1 along the Z axis, which can further prevent the ultrasonic wave emitted by the transmitting end 2 from being transmitted along the bottom wall of the groove 11 to the receiving end 3, thereby further reducing the probability of bubble missed detection. Wherein, the bottom wall is the side wall where the bottom surface of the groove 11 is located.

[0044] In addition, in the Y axis direction, the groove 12 is arranged spaced apart from the two side walls of the groove 11, which means that the width of the groove 12 is less than the width of the groove 11, and when the infusion tube 20 is pressed on the bottom surface of the groove 11, in the Y axis direction, both sides of the groove 12 remain a part of the bottom surface of the groove 11, so that both sides of the groove 12 in the Y axis direction can support the infusion tube 20, thereby improving the supporting effect of the bracket 1 on the infusion tube 20.

[0045] In an embodiment, both ends of the cutout 12 protrude out of the emitting end 2 in the length direction of the groove 11, and the length of the cutout 12 in the X-axis direction is greater than the maximum length of the emitting end 2; and / or, both ends of the cutout 12 protrude out of the receiving end 3, and the length of the cutout 12 in the X-axis direction is greater than the maximum length of the receiving end 3. In this way, the ultrasonic waves transmitted through the bottom wall of the groove 11 between the emitting end 2 and the receiving end 3 can be hindered by the cutout 12 as much as possible, the hindering effect of the cutout 12 on the ultrasonic waves transmitted through the bottom wall of the groove 11 is improved, and the probability of bubble missed detection is further reduced.

[0046] As shown in Figure 3 and Figure 4 In an embodiment, the bubble detection module 10 further comprises an ultrasonic wave blocking member 4, which is arranged in the cutout 12. In this way, the hindering effect of the ultrasonic waves transmitted through the bottom wall of the groove 11 is further improved, and the probability of bubble missed detection is further reduced.

[0047] The ultrasonic wave blocking member 4 can be any one of a metal member, a wooden member, and a ceramic member. Of course, the ultrasonic wave blocking member 4 can also be made of other materials that can hinder the transmission of ultrasonic waves, such as rubber, foam, etc.

[0048] In an embodiment, the ultrasonic wave blocking member 4 completely fills the cutout 12, which can further improve the hindering effect of the ultrasonic waves transmitted through the bottom wall of the groove 11.

[0049] As shown in Figure 3 and Figure 4 In an embodiment, the emitting end 2 is located outside the groove 11, which can effectively avoid interference between the emitting end 2 and the infusion tube 20; and / or, the receiving end 3 is located outside the groove 11, which can effectively avoid interference between the receiving end 3 and the infusion tube 20. During operation, the ultrasonic waves emitted by the emitting end 2 can pass through the side wall of the groove 11 and the infusion tube 20 in the groove 11 along the width direction of the groove 11 and then be transmitted to the receiving end 3.

[0050] As shown in Figure 3 and Figure 4As shown in the drawings, in an embodiment, the bracket 1 has a first surface 13 and a second surface 14 arranged oppositely in the depth direction of the groove 11; the groove 11 is arranged on the first surface 13; the second surface 14 is provided with a first accommodating cavity 15 and a second accommodating cavity 16; the first accommodating cavity 15 and the second accommodating cavity 16 are arranged on both sides of the groove 11 in the width direction of the groove 11; the cavity wall of the first accommodating cavity 15 comprises a first side wall 17 between the first accommodating cavity 15 and the groove 11, and the cavity wall of the second accommodating cavity 16 comprises a second side wall 18 between the second accommodating cavity 16 and the groove 11; the emitting end 2 is arranged in the first accommodating cavity 15 and located on the first side wall 17; and the receiving end 3 is arranged in the second accommodating cavity 16 and located on the second side wall 18.

[0051] In this way, the ultrasonic wave transmission effect between the emitting end 2 and the receiving end 3 can be improved, and the emitting end 2 and the receiving end 3 can be effectively prevented from being collided by external objects.

[0052] It should be understood that the first side wall 17 and the second side wall 18 also belong to the side wall of the groove 11. In addition, in the Z-axis direction, the bottom surface of the groove 11 is located between the first surface 13 and the second surface 14, and the cutout 12 can be a cutout from the bottom surface of the groove 11 to the second surface 14.

[0053] As shown in the drawings, Figure 4 In an embodiment, the side wall of the groove 11 is further provided with a limiting protrusion 19, and the limiting protrusion 19 is arranged spaced apart from the bottom surface of the groove 11. The limiting protrusion 19 can limit the infusion tube 20 between the bottom surface of the groove 11 and the limiting protrusion. In addition, the limiting protrusion 19 is usually arranged at the end in the length direction of the groove 11 to avoid interference with the pressing module 30.

[0054] The side wall of the groove 11 comprises the first side wall 17 and the second side wall 18, and the limiting protrusion 19 can be arranged on the first side wall 17 and / or the second side wall 18. When the limiting protrusion 19 is arranged on the first side wall 17, the limiting protrusion 19 is arranged spaced apart from the second side wall 18 in the Y-axis direction; when the limiting protrusion 19 is arranged on the second side wall 18, the limiting protrusion 19 is arranged spaced apart from the first side wall 17 in the Y-axis direction; and when the limiting protrusion 19 is arranged on both the first side wall 17 and the second side wall 18, the limiting protrusions 19 arranged on the first side wall 17 and the second side wall 18 are spaced apart in the Y-axis direction.

[0055] As shown in the drawings, Figure 3 and Figure 4 In an embodiment, the bubble detection module 10 further comprises a connecting piece 5 connected to the bracket 1 and used for connecting a supporting object 40, so as to connect the bracket 1 to the supporting object 40, thereby achieving the installation of the bubble detection module 10 on the supporting object 40.

[0056] The connector 5 includes a first connecting plate 51, which is connected to the bracket 1. The first connecting plate 51 has a first snap-fit ​​structure 511, which is used to snap into the supporting object 40, thus facilitating the connection and assembly of the two. In addition, a portion of the first connecting plate 51 is disposed in the first receiving cavity 15, and a portion of the first connecting plate 51 is located in the second receiving cavity 16. In this case, the first connecting plate 51 can also strengthen the bracket 1 and improve its strength.

[0057] In one embodiment, the first snap-fit ​​structure 511 is a snap-fit ​​hole, and the support object 40 is provided with a snap-fit ​​block. The snap-fit ​​hole and the snap-fit ​​block cooperate to realize the connection between the first connecting plate 51 and the support object 40.

[0058] like Figures 2 to 4 As shown, in one embodiment, the connector 5 further includes a second connecting plate 52, a third connecting plate 53, and a fourth connecting plate 54; the second connecting plate 52, the third connecting plate 53, and the fourth connecting plate 54 are all connected to the bracket 1. The second connecting plate 52 is provided with a second snap-fit ​​structure 521, which is used to snap-fit ​​with the supporting object 40; a portion of the second connecting plate 52 is disposed in the first receiving cavity 15, and a portion of the second connecting plate 52 is located in the second receiving cavity 16; the first connecting plate 51 and the second connecting plate 52 are spaced apart along the length direction of the groove 11; the third connecting plate 53 and the fourth connecting plate 54 are spaced apart along the width direction of the groove 11; the third connecting plate 53 is disposed in the first receiving cavity 15 and is respectively connected to the first connecting plate 51 and the second connecting plate 52; the fourth connecting plate 54 is disposed in the second receiving cavity 16 and is respectively connected to the first connecting plate 51 and the second connecting plate 52.

[0059] In this embodiment, the connection between the connector 5 and the support object 40 can also be achieved through the snap-fit ​​engagement of the second connecting plate 52 and the support object 40. The arrangement of the first connecting plate 51 and the second connecting plate 52 improves the robustness of the connection between the connector 5 and the support object 40. The second snap-fit ​​structure 521 can also be a snap-fit ​​hole. Alternatively, the structures of the first connecting plate 51 and the second connecting plate 52 can be identical.

[0060] In addition, the strength of the connector 5 can be improved by setting the third connecting plate 53 and the fourth connecting plate 54.

[0061] In an embodiment, in the X-axis direction, the first connecting plate 51 is spaced apart from the side wall of the first accommodating cavity 15, the first connecting plate 51 is spaced apart from the side wall of the second accommodating cavity 16, the second connecting plate 52 is spaced apart from the side wall of the first accommodating cavity 15, and the second connecting plate 52 is spaced apart from the side wall of the second accommodating cavity 16; in the Y-axis direction, the third connecting plate 53 is spaced apart from the side wall of the first accommodating cavity 15, and the fourth connecting plate 54 is spaced apart from the side wall of the second accommodating cavity 16.

[0062] The first connecting plate 51 and the side wall of the first accommodating cavity 15 are provided with a reinforcing rib, the reinforcing rib connects the first connecting plate 51 and the side wall of the first accommodating cavity 15, and is located on the side of the first connecting plate 51 away from the second connecting plate 52. The first connecting plate 51 and the side wall of the second accommodating cavity 16 are provided with a reinforcing rib, the reinforcing rib connects the first connecting plate 51 and the side wall of the second accommodating cavity 16, and is located on the side of the first connecting plate 51 away from the second connecting plate 52.

[0063] The second connecting plate 52 and the side wall of the first accommodating cavity 15 are provided with a reinforcing rib, the reinforcing rib connects the second connecting plate 52 and the side wall of the first accommodating cavity 15, and is located on the side of the second connecting plate 52 away from the first connecting plate 51. The second connecting plate 52 and the side wall of the second accommodating cavity 16 are provided with a reinforcing rib, the reinforcing rib connects the second connecting plate 52 and the side wall of the second accommodating cavity 16, and is located on the side of the second connecting plate 52 away from the first connecting plate 51.

[0064] The third connecting plate 53 and the side wall of the first accommodating cavity 15 are provided with a reinforcing rib, the reinforcing rib connects the third connecting plate 53 and the side wall of the first accommodating cavity 15, and is located on the side of the third connecting plate 53 away from the fourth connecting plate 54.

[0065] The fourth connecting plate 54 and the side wall of the second accommodating cavity 16 are provided with a reinforcing rib, the reinforcing rib connects the fourth connecting plate 54 and the side wall of the second accommodating cavity 16, and is located on the side of the fourth connecting plate 54 away from the third connecting plate 53.

[0066] In an embodiment, the bracket 1, the first connecting plate 51, the second connecting plate 52, the third connecting plate 53, the fourth connecting plate 54 and each reinforcing rib can be an integrally formed structure, such as being integrally formed by injection molding.

[0067] The utility model embodiment further provides a kind of infusion device, which comprises pressing module 30 and the bubble detection module 10 described in any one of the above embodiments;Pressing module 30 is used to press infusion tube 20 on the bottom surface of groove 11.

[0068] As Figure 5 And Figure 6As shown, in one embodiment, the infusion device further includes a support object 40 and a cover module 50, wherein the bubble detection module 10 is mounted on the support object 40, and the pressing module 30 is mounted on the cover module 50. Furthermore, the cover module 50 is rotatable relative to the support object 40 to switch between a first position and a second position. When the cover module 50 rotates to the first position, it can cause the pressing module 30 to be misaligned from the bubble detection module 10. At this time, the pressing module 30 does not obstruct the opening in the depth direction of the groove 11, thus facilitating the placement of the infusion tube 20 within the groove 11. When the cover module 50 rotates to the second position, it can cause the pressing module 30 to press the infusion tube 20 against the bottom surface of the groove 11.

[0069] The offset between the pressing module 30 and the bubble detection module 10 can mean that: in the orthographic projection of a plane perpendicular to the depth direction of the groove 11, the projection of the groove 11 and the projection of the pressing module 30 do not overlap; or, in the orthographic projection of a plane perpendicular to the depth direction of the groove 11, the projection of the opening formed by the groove 11 on the first surface 13 and the projection of the pressing module 30 do not overlap.

[0070] like Figure 6 As shown, in one embodiment, the pressing module 30 includes a pressing block 6 and an elastic element 7. The pressing block 6 is movably connected to the cover plate module 50, and the elastic element 7 is disposed between the pressing block 6 and the cover plate module 50. When the cover plate module 50 is in the second position, the pressing module 30 can move relative to the cover plate module 50 along the depth direction of the groove 11. When the pressing block 6 moves away from the bottom surface of the groove 11, it can apply force to the elastic element 7, causing the elastic element 7 to undergo elastic deformation. When the pressing block 6 presses the infusion tube 20 onto the bottom surface of the groove 11, the elastic element 7 is in an elastically deformed state, which can improve the pressing effect on the infusion tube 20.

[0071] In addition, when the pressure block 6 presses down on the infusion tube 20, the pressure block 6 can extend into the groove 11.

[0072] like Figure 6 As shown, in one embodiment, the cover plate module 50 includes a sealing plate 8 and a pressure plate 9. The sealing plate 8 is rotatably connected to the support object 40. The sealing plate 8 is provided with a concave structure 81, and the bottom surface of the concave structure 81 is provided with a clearance hole 82. The clearance hole 82 and the concave structure 81 form a stepped hole penetrating the sealing plate 8. The pressure block 6 includes a pressing part 61 and a blocking part 62. The blocking part 62 is provided on the side of the pressing part 61. The pressing part 61 is provided in the concave structure 81 and extends out of the concave structure 81 from the clearance hole 82. The blocking part 62 is located in the concave structure 81. When the pressing part 61 moves along the direction from the concave structure 81 to the clearance hole 82, the blocking part 62 can abut against the bottom surface of the concave structure 81 to prevent the pressing part 61 from moving out of the concave structure 81.

[0073] The pressing plate 9 is arranged on the sealing plate 8 and is opposite to the bottom surface of the inner recess structure 81, and the elastic member 7 is compressed between the pressing portion 61 and the pressing plate 9.

[0074] When the cover plate module 50 is in the second position, the pressing plate 9 is located on the side of the sealing plate 8 away from the recess 11, and the inner recess structure 81 is located on the side of the avoiding hole 82 away from the recess 11.

[0075] In addition, the infusion device further comprises an infusion pump and an infusion tube 20, the infusion tube 20 is used for conveying the liquid in the target container into the infusion tube 20, so as to convey the liquid into the target object through the infusion tube 20. Wherein, the target container can also be a part of the infusion device, or the target container can also be a device independent of the infusion device. The target object mentioned here can be a human or other animals, etc.

[0076] It should be understood that the pressing module 30, the cover plate module 50, the supporting object 40, the infusion pump and the infusion tube 20 can all be designed by using the prior art.

[0077] The technical features of the above embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0078] The above description is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bubble detection module, characterized in that, Includes a support frame, a transmitter, and a receiver; The support has a groove for accommodating the infusion tube, and the groove extends through the support along its length. The bottom wall of the groove is provided with a cutting groove; Both the transmitting end and the receiving end are mounted on the bracket, and the transmitting end and the receiving end are located on opposite sides of the width direction of the groove; the receiving end is used to receive the ultrasonic waves emitted by the transmitting end.

2. The bubble detection module according to claim 1, characterized in that, The groove is formed on the bottom surface of the recess, and extends through the support along the depth direction of the recess; and / or, In the width direction of the groove, the cuts are spaced apart from both sides of the groove.

3. The bubble detection module according to claim 1, characterized in that, Along the length of the groove, both ends of the groove protrude from the transmitting end, and / or both ends of the groove protrude from the receiving end.

4. The bubble detection module according to claim 1, characterized in that, The bubble detection module also includes an ultrasonic blocking component, which is disposed within the groove.

5. The bubble detection module according to claim 4, characterized in that, The ultrasonic blocking element completely fills the groove; and / or, The ultrasonic blocking component can be any one of metal, wood, or ceramic.

6. The bubble detection module according to claim 1, characterized in that, The transmitting end is located outside the groove; and / or, the receiving end is located outside the groove.

7. The bubble detection module according to claim 1, characterized in that, In the depth direction of the groove, the bracket has a first surface and a second surface disposed opposite to each other; The groove is disposed on the first surface; The second surface is provided with a first receiving cavity and a second receiving cavity; In the width direction of the groove, the first receiving cavity and the second receiving cavity are spaced apart on both sides of the groove; The cavity wall of the first receiving cavity includes a first sidewall located between the first receiving cavity and the groove, and the cavity wall of the second receiving cavity includes a second sidewall located between the second receiving cavity and the groove; The transmitting end is disposed within the first receiving cavity and located on the first side wall; The receiving end is disposed inside the second receiving cavity and located on the second side wall.

8. The bubble detection module according to claim 7, characterized in that, The bubble detection module also includes a connector; The connector includes a first connecting plate, which is connected to the bracket. The first connecting plate is provided with a first snap-fit ​​structure, which is used to snap-fit ​​with the supporting object. A portion of the first connecting plate is disposed within the first receiving cavity, and a portion of the first connecting plate is located within the second receiving cavity.

9. The bubble detection module according to claim 8, characterized in that, The connector further includes a second connecting plate, a third connecting plate, and a fourth connecting plate; The second connecting plate, the third connecting plate, and the fourth connecting plate are all connected to the bracket. The second connecting plate is provided with a second snap-fit ​​structure, which is used to snap-fit ​​with the supporting object; a portion of the second connecting plate is disposed in the first receiving cavity, and a portion of the second connecting plate is located in the second receiving cavity; The first connecting plate and the second connecting plate are spaced apart along the length direction of the groove; The third connecting plate and the fourth connecting plate are spaced apart along the width direction of the groove; The third connecting plate is disposed within the first receiving cavity and connects the first connecting plate and the second connecting plate respectively; The fourth connecting plate is disposed in the second receiving cavity and is connected to the first connecting plate and the second connecting plate respectively.

10. An infusion device, characterized in that, It includes a pressing module and a bubble detection module as described in any one of claims 1-9; the pressing module is used to press the infusion tube onto the bottom surface of the groove.

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