An infusion alarm capable of timely stopping liquid drops

Abstract

The present invention discloses an infusion alarm device that can timely clamp and stop liquid drops, and relates to the field of medical devices, including a medicine bottle hanger, a bottom plate, an elastic support, a clamping component, a limit component and an alarm module. The present invention reduces the deadweight of a liquid bottle or a liquid bag after the infusion is completed, and uses a purely mechanical method to trigger the mechanism to achieve timely clamping and stopping of the infusion tube after the infusion is completed and send out an alarm signal, reminding medical staff to replace the liquid bottle, so that the patient can rest assured during the infusion process without worrying about the danger of blood reflux when no one is accompanying him.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to an infusion alarm which can timely stop liquid drops in a purely mechanical manner and send out an alarm signal at the same time. Background Art

[0002] At present, the types of infusion alarms on the market are relatively single, most of which are alarms clamped on the infusion tube, without the function of liquid drop clamping and stopping, and the product quality is poor and easy to damage, and it involves circuits (liquid may be used as a conductive medium to cause leakage danger). At the same time, there are fewer types of patents in related aspects, and most of them are limited to using complex circuits or sensors to issue alarms. The functions are single and the cost is high, and it cannot be promoted on a large scale. A gravity infusion alarm with patent number CN205019524U, which is similar to the design concept of the present invention, although it also triggers the alarm through weight changes, introduces fixed pulleys, weights and other devices. The device is bulky and large in size, not easy to carry, and has high cost. It also fails to consider that the medicine bottle will have a slight swing during the infusion process, which may cause problems such as failure to issue an alarm in time or issuing an alarm too early, and the functional stability is poor. At the same time, the device also has the common problem of infusion alarms-it does not have a drop clamping and stopping function. Summary of the invention

[0003] The purpose of the present invention is to provide an infusion alarm which can stop liquid drops in time, so as to solve the problem that the existing infusion alarm cannot stop liquid drops in time.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The invention discloses an infusion alarm device which can timely clamp and stop liquid droplets, comprising a medicine bottle hanger, a base plate, an elastic support, a clamping assembly and a limit assembly. The elastic support supports the medicine bottle hanger above the base plate, and the medicine bottle hanger rises and falls relative to the base plate as the weight of the medicine solution changes. The clamping assembly comprises a driving block, a clamping block and a reset spring, and the clamping block and the reset spring are mounted on the base plate. A clearance groove for an infusion tube to pass through is provided on the base plate, one end of the clamping block faces the clearance groove and the other end contacts the reset spring, the driving block and the limit assembly are connected to the medicine bottle hanger, the downward movement of the medicine bottle hanger is converted into the movement of the driving member driving the clamping block away from the clearance groove and the locking movement of the limit assembly on the clamping block that has been away from the clearance groove, and the upward movement of the medicine bottle hanger is converted into the movement of the driving member leaving the clamping block and the movement of the limit assembly releasing the locking movement of the clamping block, and the limit assembly triggers the alarm module to send an alarm signal at the moment when the restriction on the clamping block is released.

[0006] Furthermore, a guide groove is provided on the bottom plate, the lower end of the clamping block and the reset spring are placed in the guide groove, the end of the guide groove away from the reset spring is connected to the clearance groove, and the clearance groove runs through the upper and lower surfaces of the bottom plate.

[0007] Furthermore, the limit assembly includes a limit rod, a slider and a connecting rod. A slide groove is provided on the bottom plate, the slide groove is connected to the guide groove, the slider is sleeved on the limit rod and both are placed in the slide groove, the two ends of the connecting rod are respectively rotatably connected to the slider and the medicine bottle hanger, and the limit rod is driven to move when the medicine bottle hanger moves up and down. A limit hole is provided on the clamping block, and the clamping block can be moved to the limit hole to align with the slide groove under the push of the driving member, and the limit hole is a long strip hole into which the limit rod can be inserted.

[0008] Furthermore, the limiting rod includes a front section and a rear section, the front section and the rear section of the limiting rod are connected by a compression spring, the rear section of the limiting rod faces the guide groove, and a yield hole is provided on the inner wall of the guide groove facing the limiting rod, the sliding block is sleeved on the front section of the limiting rod, the front section of the limiting rod is provided with an external thread, the sliding block is provided with a threaded hole, the sliding block is connected to the limiting rod by threads, and the end of the front section of the limiting rod is located outside the bottom plate for adjusting the relative position of the limiting rod and the sliding block to adapt to medicine bottles of different specifications.

[0009] Furthermore, the alarm module includes a power supply, a micro switch and an alarm. When the limit assembly releases the restriction on the clamping block, the slider moves to reset and triggers the micro switch, so that the alarm module circuit is turned on, and the alarm sends an alarm signal to remind the nurse station to replace the medicine bottle.

[0010] Furthermore, the alarm is a buzzer or a signal transmitter.

[0011] Furthermore, the clamping block has an inclined guide surface, and the lower end of the driving block is provided with an inclined push surface parallel to the inclined guide surface of the clamping block. The clamping block pushes the inclined push surface on the driving block through the inclined guide surface, so that the downward movement of the driving block is converted into an action of the clamping block moving in a direction away from the clearance groove.

[0012] Furthermore, the medicine bottle hanger includes a support plate and a bracket vertically arranged on the support plate, the upper end of the bracket is used to hang the medicine bottle, and the support plate is provided with an open groove running through the upper and lower surfaces of the support plate, and the open groove is used for the infusion tube to pass through the support plate.

[0013] Furthermore, a plurality of guide rods are vertically fixed to the base plate, a plurality of guide holes corresponding to the guide rods are provided on the support plate, the guide rods are movably arranged in the guide holes, the elastic support member is a compression spring, and the compression spring is sleeved on the guide rods. The cooperation of the guide rods and the guide holes can ensure that the support plate can make up and down movements parallel to the base plate within the length range of the guide rods.

[0014] Furthermore, the base plate is connected to a fixing block, which is provided with a vertical mounting hole for the infusion pole to pass through, and a transverse threaded hole connected to the mounting hole is provided on the fixing block, and a locking screw is arranged in the threaded hole for locking the fixing block on the infusion pole.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] When the present invention is used, the user only needs to fix the infusion alarm on the infusion pole, hang the liquid bottle or liquid bag on the upper end of the infusion alarm, adjust the limit assembly to correspond to liquid bottles or liquid bags of different specifications, and make the infusion tube pass through the clamping stop position. After the infusion of the liquid bottle or liquid bag is completed, the dead weight is reduced, and the mechanism is triggered by a purely mechanical method to achieve timely clamping of the infusion tube after the infusion is completed and send out an alarm signal, reminding medical staff to replace the liquid bottle, so that the patient can rest assured during the infusion process, without worrying about the danger of blood reflux when no one is accompanying. The alarm signal preferably adopts a silent alarm method to avoid disturbing the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an infusion alarm capable of timely stopping liquid droplets according to an embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A three-dimensional view from another angle of the infusion alarm that can stop liquid drops in time;

[0019] Figure 3 yes Figure 1 A front view of the infusion alarm that can timely stop the dripping of liquid is shown;

[0020] Figure 4 It is a schematic diagram of the installation position of the clamping block and the limit assembly on the base plate;

[0021] Figure 5 It is a three-dimensional image of the base plate;

[0022] Figure 6 is a top view of the base plate;

[0023] Figure 7 Schematic diagram of the change of the infusion alarm capable of timely stopping liquid dripping according to the embodiment of the present invention from having no medicine bottle hung on it to having a medicine bottle full of liquid medicine hung on it. DETAILED DESCRIPTION

[0024] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] See also Figures 1 to 7The embodiment discloses an infusion alarm device capable of timely clamping and stopping liquid drops, comprising a medicine bottle rack, a bottom plate 1, an elastic support member 2, a clamping assembly and a limit assembly, wherein the elastic support member 2 supports the medicine bottle rack above the bottom plate 1, and the medicine bottle rack is lifted and lowered relative to the bottom plate 1 as the weight of the medicine solution changes, and the clamping assembly comprises a driving block 3, a clamping block 4 and a reset spring 5, and the clamping block 4 and the reset spring 5 are mounted on the bottom plate 1, and a clearance groove 6 for the infusion tube to pass through is provided on the bottom plate 1, and one end of the clamping block 4 faces the clearance groove 6. The driving block 3 and the limit assembly are connected to the medicine bottle rack. The downward movement of the medicine bottle rack is converted into the action of the driving block driving the clamping block 4 away from the making way slot 6 and the locking action of the limit assembly on the clamping block 4 that has been away from the making way slot 6. The upward movement of the medicine bottle rack is converted into the action of the driving block leaving the clamping block 4 and the locking action of the limit assembly to release the clamping block 4. The limit assembly triggers the alarm module to send an alarm signal at the moment the restriction on the clamping block 4 is released.

[0026] like Figure 1 As shown, the medicine bottle hanger includes a support plate 7 and a bracket 8 vertically arranged on the support plate 7. The upper end of the bracket 8 is used to hang the medicine bottle. The support plate 7 is provided with an open groove 9 that penetrates the upper and lower surfaces of the support plate 7. The open groove 9 is used for the infusion tube to pass through the support plate 7. In order to facilitate the hanging of medicine bottles or medicine bags, a hook can be set on the upper end of the bracket 8. The example in the figure adopts the method of setting a screw 10 and a nut on the upper end of the bracket 8, and the medicine bottle can be hung on the screw 10.

[0027] A plurality of guide rods are vertically fixed on the bottom plate 1, and a plurality of guide holes corresponding to the guide rods are provided on the support plate 7, and the guide rods are movably arranged in the guide holes. The elastic support member 2 is a compression spring, and the compression spring is sleeved on the guide rods. The cooperation between the guide rods and the guide holes can ensure that the support plate 7 can move up and down parallel to the bottom plate 1 within the length of the guide rods. In this embodiment, the support plate 7 and the bottom plate 1 are both square plate structures, and four compression springs are used to support the four corners of the support plate 7 to ensure stability.

[0028] like Figure 5 and Figure 6 As shown, a guide groove is provided on the bottom plate, the lower end of the clamping block 4 and the reset spring 5 are placed in the guide groove, and the end of the guide groove away from the reset spring 5 is connected to the clearance groove 6, and the clearance groove 6 runs through the upper and lower surfaces of the bottom plate 1. The clearance groove 6 has an open end and a closed end, the open end of the clearance groove 6 extends to the edge of the bottom plate 1, and the closed end of the clearance groove 6 is connected to the guide groove. The infusion tube passes through the bottom plate 1 from the intersection of the clearance groove 6 and the guide groove. When the clamping block 4 is not restricted by the limiting assembly, it supports the infusion tube under the action of the reset spring 5 to achieve the clamping function.

[0029] like Figure 4As shown, the limit assembly includes a limit rod 11, a slider 12 and a connecting rod 13. A slide groove is provided on the bottom plate 1, the slide groove is connected with the guide groove, and a clearance hole 17 is provided on the inner wall of the guide groove facing the limit rod 11. The slider 12 is sleeved on the limit rod 11 and both are placed in the slide groove. The two ends of the connecting rod 13 are respectively connected with the slider 12 and the medicine bottle hanger for rotation. When the medicine bottle hanger moves up and down, the limit rod 11 is driven to move. The clamping block 4 is provided with a limit hole 16. The clamping block 4 can be moved to the limit hole 16 to align with the slide groove under the push of the driving block. The size of the limit hole 16 can allow the limit rod 11 to be inserted therein, and the limit hole 16 is preferably a long strip hole.

[0030] The clamping block 4 has an inclined guide surface, and the lower end of the driving block 3 is provided with an inclined push surface parallel to the inclined guide surface of the clamping block 4. The clamping block 4 pushes the inclined push surface on the driving block 3 through the inclined guide surface, so that the downward movement of the driving block 3 is converted into an action of the clamping block 4 moving in a direction away from the clearance groove 6.

[0031] like Figure 4 As shown, the limiting rod 11 includes a front section and a rear section, the front section and the rear section of the limiting rod 11 are connected by a compression spring, the rear section of the limiting rod 11 faces the guide groove, the slider 12 is sleeved on the front section of the limiting rod 11, the front section of the limiting rod 11 is provided with an external thread, the slider 12 is provided with a threaded hole, the slider 12 is connected to the limiting rod 11 by threads, and the end of the front section of the limiting rod 11 is located outside the bottom plate 1 for adjusting the relative positions of the limiting rod 11 and the slider 12 to adapt to medicine bottles or medicine bags of different specifications.

[0032] The alarm module includes a power supply, a micro switch and an alarm. When the limit assembly releases the restriction on the clamping block 4, the slider 12 moves to reset and triggers the micro switch, so that the alarm module circuit is turned on, so that the alarm sends an alarm signal to remind the nurse station to replace the medicine bottle or medicine bag. The alarm can be a buzzer or a signal transmitter. The alarm in this embodiment is preferably a signal transmitter, so that the nurse station is reminded without making a sound to avoid disturbing the patient.

[0033] like Figure 2 As shown, the base plate 1 is connected to a fixing block 14, and a vertical mounting hole 15 is provided on the fixing block 14 for the infusion pole to pass through. A horizontal threaded hole connected to the mounting hole 15 is provided on the fixing block 14, and a screw 10 is arranged in the threaded hole to lock the infusion pole. The infusion alarm that can stop the droplets in time is fixed on the infusion pole for use.

[0034] When a medicine bottle filled with liquid medicine is hung on the medicine bottle rack, the medicine bottle rack moves down, the driving block pushes the clamping block 4 to leave the clearance groove 6, and the clamping block 4 is locked by the limiting assembly; when the medicine bottle rack moves up as the liquid medicine decreases, it drives the driving block to leave the clamping block 4, and when the liquid medicine drops to the reserved margin or drips out, the limiting assembly just releases the restriction on the clamping block 4, and the clamping block 4 moves to the clearance groove 6 under the action of the reset spring 5 to clamp the infusion tube.

[0035] The present invention is mainly composed of a base plate 1, a support plate 7, four elastic support members, a clamping assembly and a limiting assembly. The base plate 1, the support plate 7 and the four elastic support members constitute the main external structure of the infusion alarm and are fixed to the infusion pole through the bottom fixing block 14. The elastic support members and the limiting rod 11 fixed to the base plate 1 jointly adjust the difference in weight of medicine bottles or medicine bags of different specifications. When the amount of liquid medicine in the medicine bottle or medicine bag changes, the clamping assembly moves relative to achieve the clamping function.

[0036] When the present invention is in use, the weight of the medicine bottle or medicine bag filled with liquid medicine will cause the support plate 7 to descend, and the driving block 3 will push the clamping block 4 away from the infusion tube to ensure the smooth flow of the liquid medicine. In the early stage of the descent of the support plate 7, the support plate 7 presses down the connecting rod 13 to push the slider 12 and the limit rod 11 threadedly connected to the slider 12 to move along the slide groove toward the clamping block 4. At this time, the limit hole 16 on the clamping block 4 has not yet aligned with the slide groove, and the compression spring on the limit rod 11 is compressed; when the support plate 7 continues to descend, the driving block pushes the clamping block 4 backward to align the limit hole 16 with the slide groove. At this time, the rear section of the limit rod 11 enters the limit hole 16 and enters the clearance hole 17 under the action of the compression spring and the guide groove; if the support plate 7 continues to descend, the clamping block 4 continues to retreat, and the elongated limit hole 16 does not interfere with the limit rod 11.

[0037] When the amount of liquid medicine decreases, the four compression springs on the guide rod gradually extend and push the support plate 7 upward, the driving block is separated from the clamping block 4, the connecting rod 13 between the support plate 7 and the bottom plate 1 drives the limit rod 11 to move away from the clamping block 4, and the slider 12 moves toward the direction of the micro switch. When the liquid in the medicine bottle is exhausted, the limit rod 11 is separated from the limit hole 16 on the clamping block 4, the slider 12 just moves to the micro switch, and the clamping block 4 moves toward the infusion tube under the action of the reset spring 5 and clamps the liquid drop.

[0038] The limit rod 11 and the slider 12 are threadedly connected, and the final stop position of the slider 12 on the limit rod 11 is controlled by adjusting the length of the limit rod 11 entering the bottom plate 1. According to the common specifications of medicine bottles and medicine bags, the length mark is made on the limit rod 11 in advance to adapt to medicine bottles and medicine bags of different specifications, or the limit rod 11 is set as a rod with a knob at the front end, the knob and the rod body are integrally formed, and a scale is provided on the knob. By observing the rotation angle and number of rotations of the knob, the length of the limit rod entering the bottom plate 1 can be more intuitively and accurately controlled to adapt to medicine bottles and medicine bags of different specifications. For empty medicine bottles or empty medicine bags without liquid medicine, the empty medicine bottles or empty medicine bags are heavy and the screw-in length is short, and the empty medicine bottles or empty medicine bags are light and the screw-in length is long, so as to adapt to medicine bottles of different specifications.

[0039] The present invention reduces the deadweight of the liquid bottle or liquid bag after the infusion is completed, and uses a purely mechanical method to trigger the mechanism to act, so as to achieve timely clamping and stopping of the infusion tube after the infusion is completed, and at the same time sends out an alarm signal to remind medical staff to replace the liquid bottle, so that the patient can rest assured during the infusion process without worrying about the danger of blood reflux when no one is accompanying him. When using it, the user only needs to fix the infusion alarm on the infusion pole, hang the liquid bottle or liquid bag on the upper end of the infusion alarm, adjust the length of the limit rod 11 extending out of the bottom plate 1 to correspond to liquid bottles or liquid bags of different specifications, and make the infusion tube pass through the clamping position.

[0040] In general, the infusion alarm of the present invention uses a purely mechanical method to clamp and stop liquid drops, and the circuit part is simple, easy to produce, not prone to failure, low cost, easy to operate, and convenient for the elderly to use, so it has great market application prospects.

[0041] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An infusion alarm capable of timely stopping liquid drops, characterized in that: It includes a medicine bottle hanger, a base plate, an elastic support, a clamping assembly, a limit assembly and an alarm module. The elastic support supports the medicine bottle hanger above the base plate. The medicine bottle hanger rises and falls relative to the base plate as the weight of the medicine solution changes. The clamping assembly includes a driving block, a clamping block and a reset spring. The clamping block and the reset spring are mounted on the base plate. A clearance groove for the infusion tube to pass through is provided on the base plate. One end of the clamping block faces the clearance groove and the other end contacts the reset spring. The driving block and the limit assembly are connected to the medicine bottle hanger. The downward movement of the medicine bottle hanger is converted into an action of the driving member driving the clamping block away from the clearance groove and an action of the limit assembly locking the clamping block that has been away from the clearance groove. The upward movement of the medicine bottle hanger is converted into an action of the driving member leaving the clamping block and an action of the limit assembly releasing the locking of the clamping block. The limit assembly triggers the alarm module to send an alarm signal at the moment when the restriction on the clamping block is released. The limit assembly includes a limit rod, a slider and a connecting rod. A slide groove is provided on the bottom plate, the slide groove is connected with the guide groove, the slider is sleeved on the limit rod and both are placed in the slide groove, the two ends of the connecting rod are respectively connected with the slider and the medicine bottle hanger for rotation, the medicine bottle hanger moves up and down to drive the limit rod to move, the clamping block is provided with a limit hole, the clamping block can be moved to the limit hole to align with the slide groove under the push of the driving member, and the limit hole is a long strip hole into which the limit rod can be inserted; The limiting rod comprises a front section and a rear section, the front section and the rear section of the limiting rod are connected by a compression spring, the rear section of the limiting rod faces the guide groove, and a clearance hole is provided on the inner wall of the guide groove facing the limiting rod, the slider is sleeved on the front section of the limiting rod, the front section of the limiting rod is provided with an external thread, the slider is provided with a threaded hole, the slider is connected to the limiting rod by threads, and the end of the front section of the limiting rod is located outside the bottom plate for adjusting the relative position of the limiting rod and the slider to adapt to medicine bottles of different specifications; The clamping block has an inclined guide surface, and the lower end of the driving block is provided with an inclined push surface parallel to the inclined guide surface of the clamping block. The clamping block pushes the inclined push surface on the driving block through the inclined guide surface, so that the downward movement of the driving block is converted into the movement of the clamping block in the direction away from the clearance groove; The medicine bottle hanger comprises a support plate and a bracket vertically arranged on the support plate, the upper end of the bracket is used to hang the medicine bottle, and the support plate is provided with an open groove penetrating the upper and lower surfaces of the support plate, and the open groove is used for the infusion tube to pass through the support plate; A plurality of guide rods are vertically fixed on the base plate, a plurality of guide holes corresponding to the guide rods are provided on the support plate, the guide rods are movably arranged in the guide holes, the elastic support members are compression springs, and the compression springs are sleeved on the guide rods. The cooperation of the guide rods and the guide holes can ensure that the support plate can make up and down movements parallel to the base plate within the length range of the guide rods.

2. The infusion alarm capable of timely stopping liquid drops according to claim 1, characterized in that: The bottom plate is provided with a guide groove, the lower end of the clamping block and the reset spring are placed in the guide groove, one end of the guide groove away from the reset spring is connected to the clearance groove, and the clearance groove runs through the upper and lower surfaces of the bottom plate.

3. The infusion alarm capable of timely stopping liquid drops according to claim 2, characterized in that: The alarm module includes a power supply, a micro switch and an alarm. When the limit assembly releases the restriction on the clamping block, the slider moves to reset and triggers the micro switch, so that the alarm module circuit is turned on, so that the alarm sends an alarm signal to remind the nurse station to replace the medicine bottle.

4. The infusion alarm capable of timely stopping liquid drops according to claim 3, characterized in that: The alarm is a buzzer or a signal transmitter.

5. The infusion alarm capable of timely stopping liquid droplets according to any one of claims 1 to 4, characterized in that: The bottom plate is connected to a fixing block, which is provided with a vertical mounting hole for the infusion pole to pass through, and a horizontal threaded hole connected to the mounting hole is provided on the fixing block, and a locking screw is arranged in the threaded hole to lock the fixing block on the infusion pole.

Images