A tubing clamp actuator for a hemodialysis machine

Abstract

The utility model discloses a kind of pipeline blocking clamp driving elements of hemodialysis machine, including electromagnet, electromagnet push rod, upper silica gel pad, lower silica gel pad, fixed plate and clamping plate, the fixed plate is distributed along the axial direction of electromagnet push rod with clamping plate, and is fixedly connected with electromagnet push rod, the upper silica gel pad, lower silica gel pad are all installed between fixed plate and clamping plate.The blocking clamp of the utility model is radial expansion when doing blocking action, the gap between it and electromagnet push rod is filled completely after upper silica gel pad is pressed, buffer layer is formed, impact energy is effectively absorbed under the premise of maintaining blocking stroke and blocking effect unchanged, the effect of noise reduction is achieved;Meanwhile, after blocking ends, electromagnet push rod moves downward, lower silica gel pad contacts outer cover, and noise reduction is realized.

Description

Technical Field

[0001] This utility model relates to a hemodialysis technology, and more particularly to a tubing blocking clamp drive for a hemodialysis machine. Background Technology

[0002] During hemodialysis, blood monitoring and safety protection are crucial, with air monitoring being a core component. Failure to detect and block gas in the tubing in a timely manner could endanger the patient's life. Therefore, all treatments relying on extracorporeal circulation (including hemodialysis) must be equipped with an air alarm mechanism (i.e., an air monitoring component). Its necessity is equivalent to that of the blood pump and venous pressure monitoring module, making it an essential functional component of the dialysis machine.

[0003] Current air monitoring components rely on electromagnets to drive the upward movement of clamps to achieve pipeline blockage. Due to limitations in modular design, existing devices have the following drawbacks:

[0004] 1. When the electromagnet is energized and drives the push rod to move upward, the movement time is extremely short and the acceleration is extremely large. The instantaneous contact with the electromagnet generates a lot of noise.

[0005] 2. After the electromagnet stops blocking, the push rod will spring back to its initial position due to the force of the spring. At this time, the bottom surface of the push rod will make hard contact with the air monitoring cover, which will generate noise. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a tube blocking clamp driving component for a hemodialysis machine, which can effectively solve the noise problem generated by the blocking clamp during operation.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: a tubing blocking clamp driving component for a hemodialysis machine, including an electromagnet, an electromagnet push rod, an upper silicone pad, a lower silicone pad, a fixing plate, and a clamping plate.

[0008] The fixing plate and clamping plate are distributed along the axial direction of the electromagnet push rod and are fixedly connected to the electromagnet push rod. The upper silicone pad and the lower silicone pad are both installed between the fixing plate and the clamping plate.

[0009] Optionally, the electromagnet push rod has a radially extending flange portion on its shaft, and the flange portion is circumferential in shape;

[0010] The fixing plate and the clamping plate are fixedly connected to the flange portion by screws, and the fixing plate is clamped between the clamping plate and the flange portion.

[0011] Optionally, the fixing plate is evenly distributed with a plurality of perforations that are adapted to the upper or lower silicone pad, and the upper and lower silicone pads are both disposed in the perforations.

[0012] The flange portion is provided with a first through hole through which the upper silicone pad passes, and the clamping plate is provided with a second through hole through which the lower silicone pad passes.

[0013] Using the above technical solution, when the blocking clamp of this utility model performs the blocking action, the upper silicone pad expands radially after being compressed, completely filling the gap between it and the electromagnet push rod, forming a buffer layer. Under the premise of maintaining the blocking stroke and blocking effect unchanged, it effectively absorbs the impact energy and achieves the effect of noise reduction. At the same time, after the blocking is completed, the electromagnet push rod moves downward, and the lower silicone pad contacts the outer cover, thus achieving noise reduction. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 and Figure 2 As shown, this utility model discloses a tubing blocking clamp driving component for a hemodialysis machine. This driving component is used to drive the blocking clamp to block the tubing and prevent air bubbles from entering the blood vessel. The driving component includes an electromagnet 1, an electromagnet push rod 3, an upper silicone pad 2, a lower silicone pad 7, a fixing plate 4, and a clamping plate 5. The fixing plate 4 and the clamping plate 5 are distributed along the axial direction of the electromagnet push rod 3 and are fixedly connected to the electromagnet push rod 3 by screws 6. The upper silicone pad 2 and the lower silicone pad 7 are both installed between the fixing plate 4 and the clamping plate 5.

[0019] Specifically, in order to facilitate the connection between the fixing plate 4 and the clamping plate 5, a radially extending flange portion is provided on the rod body of the electromagnet push rod 3. The flange portion is circumferential in shape and is adapted to the fixing plate 4 and the clamping plate 5. At the same time, a first through hole for the upper silicone pad 2 is provided on the flange portion, and a second through hole for the lower silicone pad 7 is provided on the clamping plate 5.

[0020] In this invention, the fixing plate 4 is used to limit the upper silicone pad 2 and the lower silicone pad 7. Therefore, the fixing plate 4 is also evenly provided with through holes that are adapted to the upper silicone pad 2 or the lower silicone pad 7, and the upper silicone pad 2 and the lower silicone pad 7 are both located in the through holes. The upper silicone pad 2 and the lower silicone pad 7 have the same shape and specifications, and both have a head and a tail. The head is used for shock absorption and cushioning, and the tail is used to adapt to the first through hole and the second through hole to prevent the upper silicone pad 2 and the lower silicone pad 7 from coming out of the first through hole and the second through hole. During installation, the head of the upper silicone pad 2 passes upward through the first through hole in sequence, and the tail is located in the through hole. The head of the lower silicone pad 7 passes downward through the second through hole in sequence, and the tail is located in the through hole. Then, the fixing plate 4 and the clamping plate 5 are fixed together with screws.

[0021] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0022] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A tubing blocking clamp driving component for a hemodialysis machine, characterized in that, Includes an electromagnet, an electromagnet push rod, an upper silicone pad, a lower silicone pad, a fixing plate, and a clamping plate; The fixing plate and clamping plate are distributed along the axial direction of the electromagnet push rod and are fixedly connected to the electromagnet push rod. The upper silicone pad and the lower silicone pad are both installed between the fixing plate and the clamping plate.

2. The tubing blocking clamp driving component of the hemodialysis machine according to claim 1, characterized in that, The electromagnet push rod has a radially extending flange portion on its shaft, and the flange portion is circumferential in shape. The fixing plate and the clamping plate are fixedly connected to the flange portion by screws, and the fixing plate is clamped between the clamping plate and the flange portion.

3. The tubing blocking clamp driving component of the hemodialysis machine according to claim 2, characterized in that, The fixing plate has a number of perforations that are evenly distributed to fit the upper or lower silicone pad, and the upper and lower silicone pads are both located in the perforations. The flange portion is provided with a first through hole through which the upper silicone pad passes, and the clamping plate is provided with a second through hole through which the lower silicone pad passes.

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