Medical infusion pipeline bubble detection device

Abstract

The invention discloses a medical infusion tube bubble detection device, and belongs to the technical field of infusion tube bubble detection devices.The medical infusion tube bubble detection device comprises a bottom plate and a pressing plate hinged to one side of the bottom plate, two sets of positioning plates are slidably assembled on the bottom plate, through grooves are formed in the two sides of the pressing plate, and protruding strips are slidably arranged in the through grooves; a transverse plate is fixedly arranged between the two protruding strips and can slide in the height direction of the pressing plate relative to the pressing plate, and a notch is formed in the top end face of the positioning plate. By means of the limiting plate, after the infusion tube deforms to a certain degree, the clamping block can pop out and be inserted into the clamping groove, so that the positioning plate and the pressing plate are locked, the bottom plate and the pressing plate are prevented from continuing to get close, in actual operation, the device can rapidly clamp the outer sides of the infusion tubes of different sizes, and the practicability is high. In addition, the deformation quantity of the infusion tube does not need to be observed manually, the situation that the infusion tube is excessively clamped or not clamped in place is avoided, and the overall operation is more convenient and safer.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion tube bubble detection devices, and in particular to a medical infusion pipeline bubble detection device. Background Art

[0002] In the process of clinical application of infusion lines to treat patients, bubbles in the infusion lines must be detected accurately and effectively to ensure the patient's life safety. At present, the bubble detection methods of mainstream infusion pumps and infusion devices on the market are all ultrasonic detection methods, and the structure is to clamp or support the infusion lines on both sides to ensure the ultrasonic conduction path.

[0003] Chinese invention patent CN102335476B discloses a bubble detection device, which solves the installation reliability problem of most infusion tubes with different materials and sizes on the market in the ultrasonic conduction path, making the ultrasonic bubble detection method more reliable and easy to use.

[0004] The above-mentioned device clamps the ultrasonic sensor on both sides of the infusion tube by means of the provided springs. However, there are obvious problems in fixing the ultrasonic sensor by means of the springs when it comes to infusion tubes of different sizes. When the diameter of the infusion tube is large, the provided springs will excessively squeeze the infusion tube. Otherwise, the device cannot be stably clamped on the infusion tube. In summary, there is still room for improvement in the above-mentioned device.

[0005] Therefore, it is necessary to provide a medical infusion pipeline bubble detection device to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a medical infusion line bubble detection device to solve the problem that the existing device proposed in the above background technology clamps the ultrasonic sensor on both sides of the infusion tube by setting springs, but when it comes to infusion tubes of different sizes, there are obvious problems in fixing by springs. When the diameter of the infusion tube is large, the infusion tube will be excessively squeezed by the set springs. Conversely, the device cannot be stably clamped on the infusion tube.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a medical infusion pipeline bubble detection device, comprising a bottom plate and a pressing plate hinged to one side of the bottom plate, two sets of positioning plates are slidably mounted on the bottom plate, through grooves are provided on both sides of the pressing plate, convex strips are slidably arranged in the through grooves, and a cross plate is fixedly arranged between the two convex strips, the cross plate can slide along the height direction of the pressing plate relative to the pressing plate, a notch is provided on the top end surface of the positioning plate, when the pressing plate is rotated relative to the bottom plate to a state parallel to the bottom plate, the top end of the positioning plate is inserted into the through groove, and the convex strips at the bottom of the cross plate can be inserted into the notch; The portion of the positioning plate close to the top can be locked in the through groove by a snap-fit ​​assembly, and a limiting plate is elastically installed on the inner side of the positioning plate. The convex strip cooperates with the top portion of the positioning plate through an extrusion assembly. When the cross plate moves relative to the pressure plate, the extrusion assembly between the convex strip and the positioning plate can cause the bottom plate and the pressure plate to gradually approach each other. When the deformed infusion tube squeezes the limiting plate, the portion of the positioning plate close to the top can be locked in the through groove by the snap-fit ​​assembly.

[0008] As a further solution of the present invention: the card assembly includes card blocks elastically arranged on both sides of the positioning plate, the card blocks are arranged opposite to the above-mentioned slots, a plug-in block is arranged below the card block, the plug-in block is elastically matched with the positioning plate, a plug-in groove matched with the plug-in block is opened on the bottom surface of the card block, a pull rope is fixedly arranged between the side surface of the limit plate and the plug-in block, and a plurality of card grooves matched with the card blocks are opened on the two side walls inside the through slot.

[0009] As a further solution of the present invention: the extrusion assembly includes a top block elastically matched with the positioning plate, the top block is located at the inner wall of the slot, and push plates are hinged at both side surfaces of the convex strip. The hinge position of the push plate and the convex strip is located between the top surface of the push plate and the side surface of the convex strip. The top block is provided with inclined extrusion surfaces on the upper and lower sides close to the convex strip. During the process of inserting the convex strip into the slot, the top block can squeeze the push plate to deflect it upward. When the top block passes over the push plate, the push plate can deflect to a horizontal state.

[0010] As a further solution of the present invention: a rotating shaft is arranged at the bottom plate, and two sections of external threads with opposite rotation directions are arranged on the outer side surface of the rotating shaft. The rotating shaft passes through the positioning plate and is threadedly connected with the positioning plate, and a coil spring is arranged between the rotating shaft and the bottom plate.

[0011] As a further solution of the present invention: a groove that slidably cooperates with the top block is opened on the inner wall of the notch, a spring is fixedly arranged between the inner end surface of the groove and the top block, a strip-shaped limiting groove is opened on the top wall of the groove, and a limiting block that cooperates with the limiting groove is elastically installed on the top surface of the top block.

[0012] As a further solution of the present invention: a magnetic block is slidably arranged between the two extrusion surfaces on the top block, a traction rope is fixedly arranged between the magnetic block and the limit block, and a magnet matching the magnetic block is fixedly embedded on the bottom surface of the push plate. When the cross plate drives the convex strip to move downward and contact the extrusion surface above the top block, the push plate can be deflected so that the magnet on the push plate is aligned with the magnetic block on the top block, and the opposite side of the magnet and the magnetic block have different magnetic poles.

[0013] As a further solution of the present invention: an inserting strip is fixedly provided on the end face of one end of the card block close to the top block, and the end face of the inserting strip close to the top block is an opening structure, and the top and bottom of the inserting strip are integrally formed with protrusions, and the protrusions correspond to the openings. The entire inserting strip structure is made of plastic material, and a slot is provided on the end face of one end of the top block close to the inserting strip, and the top and bottom surfaces inside the slot are integrally formed with a pressing block.

[0014] As a further solution of the present invention: one end of the rotating shaft passes through the bottom plate, and a stepped hole matching the rotating shaft is opened on the bottom plate. The coil spring is located outside the rotating shaft, and the two ends of the coil spring are respectively connected to the outer wall of the rotating shaft and the inner wall of the stepped hole.

[0015] As a further solution of the present invention: an insertion rod is slidably arranged at the bottom plate, and a plug hole matching with the insertion rod is opened at the outer peripheral wall of the rotating shaft.

[0016] As a further solution of the present invention: a fixing plate is fixedly arranged on the bottom surface of the pressing plate, and an inserting plate is elastically arranged on the top surface of the bottom plate, and the inserting plate and the fixing plate are hinged.

[0017] Compared with the prior art, the beneficial effect of the present invention is that: this device uses a limit plate to set up, and when the infusion tube is deformed to a certain extent, the card block can pop out and be inserted into the card slot, thereby locking the positioning plate and the pressure plate to prevent the bottom plate and the pressure plate from continuing to move closer. In actual operation, the device can quickly clamp on the outside of infusion tubes of different sizes, and there is no need to manually observe the deformation of the infusion tube, thereby avoiding the infusion tube from being over-clamped or under-clamped, and the overall operation is more convenient and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the through groove and the transverse groove structure of the present invention; Figure 4 The present invention Figure 3 A schematic diagram of the enlarged structure at point A; Figure 5 It is a schematic diagram of the cooperation between the convex strip and the positioning plate of the present invention; Figure 6 The present invention Figure 5 A schematic diagram of the enlarged structure at B; Figure 7 It is a schematic diagram of the cooperation between the knob and the vertical axis of the present invention; Figure 8It is a schematic diagram of the rod structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the limiting plate and the positioning plate of the present invention; Fig.10 It is a schematic diagram of the connection structure between the base plate and the pressing plate of the present invention.

[0020] Fig.11 is a schematic diagram showing that the positioning plate of the present invention is located between the bottom plate and the pressing plate; Fig.12 It is a schematic diagram of the cooperation between the push plate and the top block of the present invention; Fig.13 It is a schematic diagram of the positions of the transverse plate and the convex strips of the present invention located in the pressing plate.

[0021] In the figure: 1, bottom plate; 101, plug plate; 2, rotating shaft; 3, knob; 301, positioning block; 4, pressing plate; 401, fixing plate; 402, through groove; 4021, card slot; 403, horizontal groove; 5, infusion tube; 6, hanging rope; 7, horizontal plate; 8, vertical axis; 801, positioning groove; 9, convex strip; 10, pull rope; 11, positioning plate; 12, limit plate; 13, card block; 14, guide hole; 15, insert strip; 1501, convex block; 16, limit groove; 17, limit block; 18, top block; 1801, extrusion surface; 1802, pressing block; 19, magnetic block; 20, traction rope; 21, push plate; 22, plug-in block; 23, plug rod; 24, coil spring; 25, notch; 26, ultrasonic transmitting probe. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 13 As shown, a medical infusion pipeline bubble detection device includes a bottom plate 1 and a pressing plate 4 arranged on one side of the bottom plate 1, wherein the bottom plate 1 and the pressing plate 4 are hinged to each other. Figure 1 As shown, an ultrasonic transmitting probe 26 is installed on one side of the base plate 1 close to the pressing plate 4, and a corresponding ultrasonic receiving probe is installed on one side of the pressing plate 4 close to the base plate 1. Through this mechanism, bubbles in the infusion tube 5 can be detected. Of course, this is only one way to detect bubbles. Since the structure for detecting bubbles is a mature technical means, its working principle will not be elaborated here.

[0023] Reference Figure 1-Figure 2 As shown, two sets of positioning plates 11 are slidably mounted on the bottom plate 1. When installing, the infusion tube 5 is placed between the bottom plate 1 and the pressing plate 4 and between the two sets of positioning plates 11. When the two sets of positioning plates 11 move to a state where they fit the infusion tube 5, they stop sliding. Figure 3-Figure 6As shown, through grooves 402 are provided on both sides of the pressure plate 4, and the through grooves 402 are arranged along the height direction of the pressure plate 4. A convex strip 9 is slidably provided in the through grooves 402, and a cross plate 7 is fixedly provided between the two convex strips 9. The cross plate 7 can slide along its height direction relative to the pressure plate 4, and a notch 25 is provided on the top end face of the positioning plate 11. When the pressure plate 4 is rotated relative to the bottom plate 1 to a state parallel to the bottom plate 1, the top end of the positioning plate 11 is inserted into the through groove 402, and the convex strip 9 at the bottom of the cross plate 7 can be inserted into the notch 25. In actual operation, the part of the positioning plate 11 close to the top can be locked in the through groove 402 by a snap-on assembly, and a limiting plate 12 is elastically installed on the inner side of the positioning plate 11, and the convex strip 9 cooperates with the top part of the positioning plate 11 through an extrusion assembly. When the cross plate 7 is relative to the pressure plate When the plate 4 moves, the extrusion assembly between the convex strip 9 and the positioning plate 11 can cause the bottom plate 1 and the pressure plate 4 to gradually approach each other, and the cooperation between the bottom plate 1 and the pressure plate 4 can squeeze the infusion tube 5, so that the entire device is clamped on the outside of the infusion tube 5. When the deformed infusion tube 5 squeezes the limit plate 12, the part of the positioning plate 11 close to the top can be locked in the through groove 402 by the snap-fit ​​assembly. Afterwards, as the cross plate 7 continues to move upward, the convex strip 9 will disengage from the positioning plate 11, so that the distance between the bottom plate 1 and the pressure plate 4 remains stable, which is conducive to stably clamping the bottom plate 1 and the pressure plate 4 on the outside of the infusion tube 5. Of course, during specific operations, a hanging rope 6 can be fixed on the bottom plate 1. When the entire device is clamped on the outside of the infusion tube 5, the hanging rope 6 can be hung on the infusion stand to reduce the load on the infusion tube 5.

[0024] The above-mentioned card assembly includes card blocks 13 arranged at the two sides of the positioning plate 11, the card blocks 13 are elastically matched with the positioning plate 11, and the card blocks 13 are arranged opposite to the above-mentioned notches 25, and a plug-in block 22 is arranged below the card block 13, the plug-in block 22 is elastically matched with the positioning plate 11, and a plug-in slot matched with the plug-in block 22 is opened on the bottom surface of the card block 13, and in the initial state, the top end of the plug-in block 22 is inserted into the plug-in slot to lock the card block 13; Furthermore, a pull rope 10 is fixedly arranged between the side of the limit plate 12 and the plug block 22, and the pull rope 10 passes through the positioning plate 11 and slidably cooperates with the positioning plate 11. When the infusion tube 5 is squeezed and deformed, the deformed infusion tube 5 squeezes the limit plate 12, so that the limit plate 12 pulls the plug block 22 through the pull rope 10; A plurality of slots 4021 cooperating with the clamping blocks 13 are formed on both side walls of the through slot 402 , and the slots 4021 are in the shape of long strips.

[0025] The extrusion assembly includes a top block 18 elastically matched with the positioning plate 11, and the top block 18 is located at the inner wall of the notch 25. The two sides of the convex strip 9 are hinged with push plates 21, and the hinge position of the push plate 21 and the convex strip 9 is located between the top surface of the push plate 21 and the side surface of the convex strip 9. Through this structure, in the initial state, the push plate 21 can only deflect upward relative to the convex strip 9. Figure 6 As shown, the upper and lower sides of the top block 18 near one end of the convex strip 9 are provided with inclined extrusion surfaces 1801. During the process of inserting the convex strip 9 into the slot 25, the top block 18 will squeeze the push plate 21 to deflect it upward. After the top block 18 passes over the push plate 21, the push plate 21 can be deflected to a horizontal state. Specifically, when the pressure plate 4 rotates relative to the bottom plate 1 to a state parallel to the bottom plate 1, the top end surface of the positioning plate 11 contacts the bottom surface of the cross plate 7, and the push plate 21 can be below the top block 18.

[0026] In order to drive the horizontal plate 7 to move relative to the pressing plate 4, the present invention has a knob 3 rotatably mounted on the side of the pressing plate 4 away from the bottom plate 1. Figure 1-Figure 5 As shown, the top end face of the horizontal plate 7 is connected with a vertical shaft 8, and the vertical shaft 8 is rotatably matched with the horizontal plate 7, and the vertical shaft 8 cannot move along the height direction of the horizontal plate 7 relative to the horizontal plate 7. The vertical shaft 8 passes through the pressure plate 4 and is threadedly matched with the pressure plate 4, and the top end of the vertical shaft 8 extends to the knob 3. Specifically, a positioning groove 801 is provided on the outer circumferential surface of the vertical shaft 8 and near the top end, and a circular hole is provided on the bottom end face of the knob 3, and a positioning block 301 that slides with the positioning groove 801 is fixedly provided on the inner wall of the circular hole.

[0027] Reference Figure 1 , Figure 8 As shown, in order to drive the positioning plate 11 to move, the present solution is provided with a rotating shaft 2 at the bottom plate 1, combined with Figure 1 As shown, a slide groove is provided on one side of the base plate 1 close to the pressure plate 4, and the cross-section of the positioning plate 11 close to the bottom end and the cross-section of the slide groove are both set to T-shape, so that the two positioning plates 11 on the same side can slide and cooperate with the base plate 1, and the above-mentioned rotating shaft 2 is in the slide groove and rotates with the base plate 1, and two sections of external threads with opposite rotation directions are provided on the outer surface of the rotating shaft 2. The rotating shaft 2 passes through the positioning plate 11 and is threadedly connected with the positioning plate 11, so that the two positioning plates 11 can be driven to move closer or farther from each other during the rotation of the rotating shaft 2, and a coil spring 24 is provided between the rotating shaft 2 and the base plate 1 to promote the rotation of the rotating shaft 2.

[0028] In actual use, the infusion tube 5 is placed between the bottom plate 1 and the pressing plate 4 and between the two sets of positioning plates 11, and the pressing plate 4 is rotated to make it parallel to the bottom plate 1. During this process, the top portion of the positioning plate 11 is inserted into the through groove 402, and the convex strip 9 can be inserted into the notch 25 at the top of the positioning plate 11. According to the above analysis, when the top surface of the positioning plate 11 contacts the cross plate 7, the top block 18 can pass over the push plate 21, so that the push plate 21 is in a horizontal state and is placed below the top block 18. The coil spring 24 drives the shaft 2 to rotate. During the rotation of the shaft 2, the two positioning plates 11 in the slide groove can be driven to gradually move closer to the infusion tube 5. When the limit plate 12 on the inner side of the positioning plate 11 contacts the infusion tube 5, the infusion tube 5 blocks the positioning plate 11 to prevent the positioning plate 11 from moving further. At this time, the knob 3 is turned to synchronously drive the vertical shaft 8 to rotate. Since the vertical shaft 8 is threadedly matched with the pressing plate 4, the vertical shaft 8 can drive the horizontal plate 7 to move outward relative to the pressing plate 4 during the rotation of the vertical shaft 8, and the horizontal plate 7 In the process of driving the convex strip 9 to move, the positioning plate 11 can be pulled by the cooperation between the push plate 21 and the top block 18, so that the bottom plate 1 and the pressure plate 4 gradually move closer. In this process, the infusion tube 5 is squeezed and deformed, and the deformed infusion tube 5 can compress the limit plate 12 into the positioning plate 11. The limit plate 12 can pull the pull rope 10 during the movement relative to the positioning plate 11. The pull rope 10 can pull the top of the plug-in block 22 out of the plug-in slot, so that the card block 13 can pop out. When the card block 13 is in the strip-shaped card slot 4 021 are aligned, the card block 13 can pop out and be inserted into the card slot 4021, so that the positioning plate 11 and the pressure plate 4 are locked with each other. At this time, in the process of turning the knob 3 to drive the cross plate 7 and the convex strip 9 to move upward, the push plate 21 will squeeze the top block 18, so that the top block 18 shrinks into the positioning plate 11. When the push plate 21 passes over the top block 18, the convex strip 9 and the positioning plate 11 are disengaged, so that the distance between the bottom plate 1 and the pressure plate 4 remains stable. At this point, the entire device can be clamped on the outside of the infusion tube 5.

[0029] To summarize, this device uses the limit plate 12 to set up, so when the infusion tube 5 undergoes a certain degree of deformation, the card block 13 can pop out and be inserted into the card slot 4021, thereby locking the positioning plate 11 and the pressure plate 4 to prevent the bottom plate 1 and the pressure plate 4 from continuing to get closer. In actual operation, the device can quickly clamp on the outside of infusion tubes 5 of different sizes, and there is no need to manually observe the deformation of the infusion tube 5, thereby avoiding the infusion tube 5 from being over-clamped or under-clamped, and the overall operation is more convenient and safe.

[0030] As a further development of the above scheme, in this scheme, a groove for slidingly cooperating with the top block 18 is provided on the inner wall of the notch 25, a spring is fixedly arranged between the inner end surface of the groove and the top block 18, a strip-shaped limiting groove 16 is provided on the top wall of the groove, and a limiting block 17 cooperating with the limiting groove 16 is elastically installed on the top surface of the top block 18; like Figure 6 As shown, the space between the two extrusion surfaces 1801 on the top block 18 is a horizontal plane, and a magnetic block 19 is slidably arranged on the horizontal plane between the two extrusion surfaces 1801. A traction rope 20 is fixedly arranged between the magnetic block 19 and the limit block 17. The traction rope 20 passes through the top block 18 and slidably cooperates with the top block 18. A magnet that cooperates with the magnetic block 19 can be fixedly embedded on the bottom surface of the push plate 21. Fig.12 As shown, when the horizontal plate 7 drives the convex strip 9 to move downward and contact the extrusion surface 1801 above the top block 18, the push plate 21 can be deflected so that the magnet on the push plate 21 is aligned with the magnetic block 19 on the top block 18, and the magnet has different magnetic poles on the side opposite to the magnetic block 19; Reference Figure 6 As shown, the end surface of the card block 13 close to the top block 18 is fixedly provided with an inserting strip 15, and the end surface of the inserting strip 15 close to the top block 18 is an opening structure, and the top and bottom of the inserting strip 15 are integrally formed with a protrusion 1501, and the protrusion 1501 corresponds to the opening. The entire inserting strip 15 structure is made of plastic material, and the end surface of the top block 18 close to the inserting strip 15 is provided with a slot, and the top and bottom surfaces inside the slot are integrally formed with a pressing block 1802; In actual use, when the push plate 21 cooperates with the extrusion surface 1801 to drive the top block 18 to move upward, the top block 18 can slide into the groove, and the limit block 17 on the top block 18 can pop out and insert into the limit groove 16. As the top block 18 moves into the groove, one end of the insertion strip 15 can be inserted into the slot, and the pressure block 1802 on the inner wall of the slot can pass over the protrusion 1501. When the push plate 21 passes over the top block 18, the top block 18 can pop out again, but when the limit block 17 contacts the end surface of the limit groove 16, the top block 18 stops moving. At this time, the pressure block 1802 is located on the side of the protrusion 1501 close to the card block 13. When the device needs to be removed from the infusion tube 5 as a whole, the knob 3 can be rotated in the opposite direction to drive the cross plate 7 and the protrusion 9 relative to the top block 15. The pressing plate 4 moves inward, and as the convex strip 9 moves downward, the push plate 21 can cooperate with the extrusion surface 1801 above the top block 18, so that the push plate 21 is deflected and finally deflected to a state roughly parallel to the magnetic block 19. The attraction between the magnetic block 19 and the magnet on the push plate 21 can pull the traction rope 20, and the traction rope 20 can move one end of the limit block 17 out of the limit groove 16, so that the top block 18 can be further popped out. When the push plate 21 moves downward and gradually passes over the top block 18, the top block 18 can pop out and drive the card block 13 to shrink into the positioning plate 11 through the cooperation of the slot and the insert strip 15, so that the card block 13 can be moved out of the card slot 4021, which is conducive to the outward deflection of the pressing plate 4 relative to the bottom plate 1 and reset, so that the entire device can be removed from the infusion tube 5.

[0031] In summary, through this structure, when the knob 3 is rotated in the reverse direction, the base plate 1 and the pressure plate 4 can be quickly removed from the infusion tube 5, and the overall operation is more convenient.

[0032] A guide hole 14 connected to the groove can be opened on the positioning plate 11, and the top block 18 and the groove can be sealed. Through this structure, when the push plate 21 passes over the top block 18 downward, the top block 18 can pop out slowly, thereby reserving sufficient time to remove the bottom plate 1 and the pressure plate 4 from the infusion tube 5.

[0033] Reference Figure 1 , Figure 8As shown, one end of the rotating shaft 2 passes through the base plate 1, and the part where the rotating shaft 2 is connected to the base plate 1 is a bare rod structure. A stepped hole matching the rotating shaft 2 is provided on the base plate 1. The above-mentioned coil spring 24 is located on the outside of the rotating shaft 2, and the two ends of the coil spring 24 are respectively connected to the outer wall of the rotating shaft 2 and the inner wall of the stepped hole. In addition, a plug rod 23 is slidably arranged on the base plate 1, and a socket matching the plug rod 23 is provided on the outer peripheral wall of the rotating shaft 2. In actual use, when the plug rod 23 is pulled out to disengage one end of it from the socket, the rotating shaft 2 can be driven to rotate by the coil spring 24. When the positioning plate 11 contacts the infusion tube 5, the blocking of the positioning plate 11 by the infusion tube 5 can prevent the coil spring 24 from continuing to be released.

[0034] Combination Figure 2 , Fig.10 As shown, a fixing plate 401 is fixedly provided on the bottom surface of the pressure plate 4, and an inserting plate 101 is elastically provided on the top surface of the bottom plate 1. The inserting plate 101 and the fixing plate 401 are hinged to achieve rotational cooperation between the bottom plate 1 and the pressure plate 4. Specifically, a strip groove that slides with the inserting plate 101 is opened on the bottom plate 1, and a limiting spring is fixedly provided between the bottom surface of the strip groove and the inserting plate 101.

[0035] Reference Figure 3 As shown, a transverse groove 403 is provided on the pressure plate 4 between the two through grooves 402 , and the transverse groove 403 is connected with the through groove 402 , and the transverse plate 7 is slidably disposed in the transverse groove 403 .

[0036] Reference Figure 6 As shown, a notch is provided at the side wall of the convex strip 9 close to the push plate 21 , and the notch is located above the push plate 21 , and an arc spring is fixedly provided between the inner end surface of the notch and the push plate 21 .

[0037] A first mounting groove for sliding with the magnetic block 19 is provided between the two extrusion surfaces 1801 on the top block 18 , and a rectangular groove for slidingly cooperating with the limit block 17 is provided on the top block 18 , and a first spring is fixedly arranged between the inner end surface of the rectangular groove and the limit block 17 .

[0038] The positioning plate 11 is provided with a receiving groove that slidably cooperates with the clamping block 13 . The inserting strip 15 passes through the positioning plate 11 and slidably cooperates with it. A return spring is fixedly arranged between the inner end surface of the receiving groove and the clamping block 13 .

[0039] The bottom surface of the receiving groove is provided with a second installation groove that is slidably matched with the plug-in block 22 , and a second spring is fixedly arranged between the inner end surface of the second installation groove and the plug-in block 22 .

[0040] Reference Fig. 9 As shown, the positioning plate 11 is provided with a limiting groove 16 which is slidably matched with the limiting plate 12 , and a compression spring is fixedly arranged between the inner end surface of the limiting groove 16 and the limiting plate 12 .

Claims

1. A medical infusion line bubble detection device, comprising a bottom plate and a pressing plate hinged to one side of the bottom plate, two sets of positioning plates are slidably mounted on the bottom plate, through grooves are provided on both sides of the pressing plate, convex strips are slidably arranged in the through grooves, and a transverse plate is fixedly arranged between the two convex strips, and the transverse plate can slide along the height direction of the pressing plate relative to the pressing plate, characterized in that: The top end surface of the positioning plate is provided with a notch. When the pressing plate is rotated relative to the bottom plate to a state parallel to the bottom plate, the top end of the positioning plate is inserted into the through slot, and the convex strip at the bottom of the horizontal plate can be inserted into the notch. The portion of the positioning plate close to the top can be locked in the through groove by a snap-fit ​​assembly, and a limiting plate is elastically installed on the inner side of the positioning plate. The convex strip cooperates with the top portion of the positioning plate through an extrusion assembly. When the cross plate moves relative to the pressure plate, the extrusion assembly between the convex strip and the positioning plate can cause the bottom plate and the pressure plate to gradually approach each other. When the deformed infusion tube squeezes the limiting plate, the portion of the positioning plate close to the top can be locked in the through groove by the snap-fit ​​assembly.

2. A medical infusion line bubble detection device according to claim 1, characterized in that: The clamping assembly includes clamping blocks elastically arranged on both sides of the positioning plate, the clamping blocks are arranged opposite to the above-mentioned slots, a plug-in block is arranged below the clamping block, the plug-in block is elastically matched with the positioning plate, a plug-in groove matched with the plug-in block is opened on the bottom surface of the clamping block, a pull rope is fixedly arranged between the side surface of the limiting plate and the plug-in block, and a plurality of clamping grooves matched with the clamping block are opened on both side walls inside the through slot.

3. A medical infusion line bubble detection device according to claim 2, characterized in that: The extrusion assembly includes a top block elastically matched with the positioning plate, the top block is located at the inner wall of the slot, and push plates are hinged at both side surfaces of the convex strip. The hinge position of the push plate and the convex strip is located between the top surface of the push plate and the side surface of the convex strip. The top block is provided with inclined extrusion surfaces on both sides close to the convex strip. During the process of inserting the convex strip into the slot, the top block can squeeze the push plate to deflect it upward. When the top block passes over the push plate, the push plate can deflect to a horizontal state.

4. A medical infusion line bubble detection device according to claim 3, characterized in that: The bottom plate is provided with a rotating shaft, and the outer side surface of the rotating shaft is provided with two sections of external threads with opposite rotation directions. The rotating shaft passes through the positioning plate and is threadedly connected with the positioning plate, and a coil spring is provided between the rotating shaft and the bottom plate.

5. A medical infusion line bubble detection device according to claim 4, characterized in that: A groove which slidably cooperates with the top block is formed on the inner wall of the notch, a spring is fixedly arranged between the inner end surface of the groove and the top block, a strip-shaped limiting groove is formed on the top wall of the groove, and a limiting block which cooperates with the limiting groove is elastically mounted on the top surface of the top block.

6. A medical infusion line bubble detection device according to claim 5, characterized in that: A magnetic block is slidably arranged between the two extrusion surfaces on the top block, a traction rope is fixedly arranged between the magnetic block and the limit block, and a magnet matching the magnetic block is fixedly embedded on the bottom surface of the push plate. When the cross plate drives the convex strip to move downward and contact the extrusion surface above the top block, the push plate can be deflected so that the magnet on the push plate is aligned with the magnetic block on the top block, and the opposite side of the magnet and the magnetic block has different magnetic poles.

7. A medical infusion line bubble detection device according to claim 3, characterized in that: An insert strip is fixedly arranged on the end face of one end of the card block close to the top block, and the end face of the insert strip close to the top block is an opening structure. The top and bottom of the insert strip are integrally formed with protrusions, and the protrusions correspond to the openings. The entire insert strip structure is made of plastic material, and a slot is provided on the end face of one end of the top block close to the insert strip, and a pressure block is integrally formed on the top and bottom surfaces inside the slot.

8. A medical infusion line bubble detection device according to claim 4, characterized in that: One end of the rotating shaft passes through the bottom plate, and a stepped hole matching the rotating shaft is formed on the bottom plate. The coil spring is located outside the rotating shaft, and two ends of the coil spring are respectively connected to the outer wall of the rotating shaft and the inner wall of the stepped hole.

9. A medical infusion line bubble detection device according to claim 4, characterized in that: An insertion rod is slidably arranged at the bottom plate, and an insertion hole matched with the insertion rod is opened at the outer peripheral wall of the rotating shaft.

10. A medical infusion pipeline bubble detection device according to claim 1, characterized in that: A fixing plate is fixedly arranged on the bottom surface of the pressing plate, and an inserting plate is elastically arranged on the top surface of the bottom plate, and the inserting plate is hinged to the fixing plate.

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