Structure for identifying opening and closing states of peristaltic pump

Abstract

The utility model relates to the technical field of peristaltic pumps, in particular to a structure for identifying opening and closing states of a peristaltic pump. The cover body comprises a rotating part and a moving part, the moving part is arranged on the shell in a sliding mode, the rotating part is rotationally connected to the moving part, and the moving part reciprocates in the longitudinal direction of the shell through rotation of the rotating part; the contact device is installed on the shell and respectively generates a first signal and a second signal based on the action that the moving part is in contact with or away from the contact device, and the corresponding moving part is located at a first position and a second position, the closed state of the cover body can be monitored in real time through signal changes, it is guaranteed that cooling water can be continuously conveyed, and the service life of the cooling water is prolonged. The cooling effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of peristaltic pump technology, and in particular to a structure for identifying the open and closed state of a peristaltic pump. Background Technology

[0002] With the rapid development of minimally invasive tumor treatment, ablation techniques such as radiofrequency ablation and microwave ablation have become mainstream treatment methods in this field due to their significant advantages, including minimal trauma and rapid recovery. The ablation needle, as the core instrument for performing ablation therapy, plays a crucial role in the procedure. It needs to precisely destroy tumor tissue under high temperature to achieve the therapeutic goal. However, ensuring the safety and effectiveness of the procedure is paramount, and the cooling system is a key element in ensuring this.

[0003] Peristaltic pumps, with their unique pollution-free delivery characteristics, are widely used in ablation needle cooling systems. By circulating coolant (such as chilled saline), they effectively maintain the needle temperature, preventing tissue carbonization and thermal damage caused by high temperatures, while also avoiding needle tip blockage due to overheating, thus ensuring the smooth progress of the procedure.

[0004] However, current peristaltic pumps have certain limitations in their design, lacking an integrated open / closed state recognition module. This prevents the pump from directly sensing abnormalities in the end cap. In clinical practice, medical staff can only rely on indirect indicators such as flow fluctuations and pump vibration to assess pump malfunction. However, these indirect methods suffer from significant delays. For example, with a certain model of peristaltic pump, the flow monitoring error can be as high as ±15% before the end cap detaches, resulting in a response delay exceeding 30 seconds. During surgery, every second is crucial; such a long response delay can severely impact the continuity of the procedure and potentially adversely affect the patient's treatment.

[0005] Furthermore, when the cooling pipe becomes blocked, it can cause a sharp increase in water pressure, which may cause the end cap to detach, ultimately preventing the peristaltic pump from continuing to deliver cooling water normally, further threatening the safety and effectiveness of the surgery.

[0006] Therefore, this application develops a structure for identifying the open and closed state of a peristaltic pump to solve the problems existing in the prior art. Utility Model Content

[0007] The purpose of this invention is to provide a structure for identifying the open and closed state of a peristaltic pump, so as to solve the problem in the prior art that it is impossible to detect the end cap of the peristaltic pump in time, which leads to the inability to deliver cooling water normally.

[0008] The technical solution of this utility model is: a structure for identifying the open / closed state of a peristaltic pump, comprising:

[0009] case;

[0010] The cover includes a rotating part and a moving part. The moving part is slidably disposed on the housing, and the rotating part is rotatably connected to the moving part. The moving part reciprocates along the longitudinal direction of the housing by rotating the rotating part.

[0011] A contact device is mounted on the housing and generates a first signal and a second signal based on the movement of the moving part contacting or moving away from it, with the moving part located at a first position and a second position respectively.

[0012] Preferably, the contact device includes a mounting part and a triggering part. The mounting part is mounted on the side wall of the housing. The triggering part has a contact rod, one end of which is hinged to the triggering part. When the other end of the contact rod is close to the triggering part, the contact device generates the first signal. When the other end of the contact rod is far away from the triggering part, the contact device generates the second signal.

[0013] Preferably, the movable part has a groove on the side near the contact device and forms an abutment portion. When the movable part is in the first position, the abutment portion contacts and presses against the contact rod.

[0014] Preferably, the abutting portion is adjacent to the trigger portion, and the top of the contact rod is hinged to the trigger portion. When the moving portion moves down, the moving portion presses the contact rod, causing the contact rod to gradually approach the trigger portion.

[0015] Preferably, the mounting plate is a PCB board, and the PCB board is connected to an external alarm system.

[0016] Preferably, a torsion spring is provided at the hinge of the contact rod, and when the abutment part disengages from the contact rod, the torsion spring drives the contact rod to return to its initial position.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] (1) The trigger rod interacts directly with the moving part. When the peristaltic pump cover is closed and the moving part moves to the first position, a force is applied to the trigger rod to make it rotate around the hinge point. The other end of the trigger rod is close to the trigger part to generate the first signal, and the peristaltic pump is in the closed state. When the cover is opened and the moving part moves to the second position, the trigger rod rotates in the opposite direction under the action of the torsion spring at the hinge point and moves away from the trigger part to generate the second signal. Through the signal of the relative position change between the trigger rod and the trigger part, the opening and closing state of the peristaltic pump can be accurately and timely identified, and the signal is transmitted to the alarm system to promptly remind medical staff of the status of the cover, which can ensure the normal delivery of cooling water and ensure the cooling effect. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is an internal cross-sectional view of the structure for identifying the open / closed state of a peristaltic pump according to the present invention.

[0021] Figure 2 This is a schematic diagram of the structure for identifying the open / closed state of a peristaltic pump according to the present invention;

[0022] Figure 3 This is a cross-sectional view of the movable part of the present invention located in the first position;

[0023] Figure 4 This is a cross-sectional view of the movable part of the present invention in the second position.

[0024] The components are: 1. shell; 2. cover; 21. rotating part; 22. moving part; 221. groove; 222. abutting part; 3. contact device; 31. mounting part; 32. triggering part; 321. contact rod. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to specific embodiments:

[0026] like Figures 1-2 As shown, a structure for identifying the open / closed state of a peristaltic pump includes a housing 1, a cover 2, and a contact device 3. The housing 1 serves as the basic support component of the entire structure, providing a platform for installation and fixation, ensuring that the components maintain a relatively stable positional relationship during the operation of the peristaltic pump. The cover 2 is the key component for realizing the opening and closing action, including a rotating part 21 and a moving part 22. The moving part 22 is slidably disposed on the housing 1 and can move linearly along the longitudinal direction of the housing 1. The rotating part 21 is rotatably connected to the moving part 22 and rotates relative to the moving part 22. Through the rotation of the rotating part 21, the moving part 22 can be driven to reciprocate along the longitudinal direction of the housing 1. When the rotating part 21 rotates, it generates a force, which is converted into linear motion of the moving part 22, causing the moving part 22 to move to different positions on the housing 1. When the cover 2 is closed, the moving part 22 moves to the first position; when the cover 2 is open, the moving part 22 moves to the second position.

[0027] In this embodiment, as Figures 3-4As shown, the contact device 3 includes a mounting part 31 and a triggering part 32. The mounting part 31 is mounted on the side wall of the housing 1, while the triggering part 32 has a contact rod 321. The contact rod 321 interacts directly with the moving part 22. Specifically, when the peristaltic pump cover 2 is closed and the moving part 22 moves to the first position, the moving part 22 applies a force to the contact rod 321, causing the contact rod 321 to rotate around the hinge point. The other end of the contact rod 321 gradually approaches the triggering part 32. When the other end of the contact rod 321 approaches the triggering part 32 to a certain extent, the circuit or sensor inside the triggering part 32 will detect this proximity and generate a first signal. The first signal is typically a specific electrical signal, such as a high-level or low-level signal, representing that the peristaltic pump is in a closed state. This signal is quickly transmitted to the peristaltic pump's alarm system so that the system can promptly understand the pump's open / closed status. When the peristaltic pump cover 2 is opened and the moving part 22 moves to the second position (i.e., the moving part 22 is not in the first position, and all other states are in the second position), the contact rod 321 rotates in the opposite direction around the hinge point under the action of the torsion spring at the hinge. The other end of the contact rod 321 gradually moves away from the trigger part 32. Simultaneously, the circuitry or sensor inside the trigger part 32 detects this movement and generates a second signal. The second signal differs from the first signal; it represents that the peristaltic pump is in an open state. Similarly, the second signal is also promptly transmitted to the alarm system.

[0028] Furthermore, a groove 221 is provided on the side of the moving part 22 near the contact device 3, and an abutment part 222 is formed on the moving part 22. When the peristaltic pump cover 2 is closed and the moving part 22 moves to the first position, the abutment part 222 will contact and press against the contact rod 321. Specifically, as the moving part 22 moves to the first position, the abutment part 222 gradually approaches and exerts a force on the contact rod 321. When the moving part 22 reaches the first position, the contact rod 321 has moved a certain distance, thereby triggering the conversion between the first signal and the second signal.

[0029] To further improve the safety and reliability of the peristaltic pump, the mounting part 31 is a PCB board with an external alarm system. The alarm system is directly connected to the PCB board pins. When the moving part 22 is not in the first position, that is, the cover 2 is not completely closed, the cooling pipe cannot effectively deliver cooling water under the action of the peristaltic pump, affecting the cooling effect. The second signal is transmitted to the alarm system through the PCB board. After receiving the signal, the alarm system will respond quickly and issue an alarm to remind medical staff to deal with it in time. When the moving part 22 is in the first position, the alarm system will not be triggered.

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A structure for identifying the open / closed state of a peristaltic pump, characterized in that, include: Shell (1); The cover (2) includes a rotating part (21) and a moving part (22). The moving part (22) is slidably disposed on the housing (1). The rotating part (21) is rotatably connected to the moving part (22). The moving part (22) reciprocates along the longitudinal direction of the housing (1) by the rotation of the rotating part (21). The contact device (3) is mounted on the housing (1) and generates a first signal and a second signal respectively based on the action of the moving part (22) contacting or moving away from it, with the moving part (22) being located in a first position and a second position respectively. The contact device (3) includes a mounting part (31) and a trigger part (32). The mounting part (31) is mounted on the side wall of the housing (1). The trigger part (32) has a contact rod (321) and one end is hinged to the trigger part (32). When the other end of the contact rod (321) is close to the trigger part (32), the contact device (3) generates the first signal. When the other end of the contact rod (321) is far away from the trigger part (32), the contact device (3) generates the second signal.

2. The structure for identifying the open / closed state of a peristaltic pump according to claim 1, characterized in that: The movable part (22) has a groove (221) on the side near the contact device (3) and forms an abutment part (222). When the movable part (22) is in the first position, the abutment part (222) contacts and presses against the contact rod (321).

3. The structure for identifying the open / closed state of a peristaltic pump according to claim 2, characterized in that: The abutting part (222) is close to the triggering part (32), and the top of the contact rod (321) is hinged to the triggering part (32). When the moving part (22) moves down, the moving part (22) presses the contact rod (321) so that the contact rod (321) gradually approaches the triggering part (32).

4. The structure for identifying the open / closed state of a peristaltic pump according to claim 2, characterized in that: The mounting part (31) is a PCB board, and the PCB board is connected to an external alarm system.

5. The structure for identifying the open / closed state of a peristaltic pump according to claim 2, characterized in that: The contact rod (321) is provided with a torsion spring at the hinge. When the abutment part (222) disengages from the contact rod (321), the torsion spring drives the contact rod (321) to return to the initial position.

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