Filling pump

Abstract

The utility model discloses a filling pump, and relates to the technical field of filling pumps. According to the utility model, the expansion pipe which expands along with the rise of the internal pressure of the pump pipe is arranged in the pump main body, the touch switch is arranged on one side of the expansion pipe, the touch switch is connected with the control unit, and the control unit is connected with the water inlet valve, so that when the pump is started during use, water is pressed into the pump pipe, and the water pressure promotes the expansion pipe to expand; when the volume of the expansion pipe is increased, the touch switch is jacked upwards, a signal is given to the pump body, and the pump stops running, and when the water inlet valve is opened, the water pressure is reduced, the expansion pipe restores to be cylindrical, the touch switch moves downwards, a signal is given to the pump, the pump is controlled to be started again, and the water inlet valve is closed; the above steps are repeated, the water inlet valve is opened and closed, and automatic starting and stopping are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of perfusion pumps, in particular to a perfusion pump. Background Art

[0002] Currently, minimally invasive surgeries often require the infusion of fluids such as saline as an auxiliary procedure. The irrigation pump is typically controlled independently or connected to an energy main unit and controlled by the main unit. When the irrigation pump is operating independently, it is usually started and stopped by its own foot pedal. When the irrigation pump is connected to an energy main unit, it is started and stopped by the energy main unit. During surgery, continuous infusion or stopping requires stepping on the foot pedal or using the energy main unit, and the operator cannot conveniently close the water valve on the water inlet sheath to achieve this, resulting in cumbersome and difficult operations. Utility Model Content

[0003] The purpose of the utility model is to provide a perfusion pump, which solves the problems raised by the existing background technology by arranging an expansion tube in the pump body that expands as the internal pressure of the pump tube increases, and arranging a touch switch on one side of the expansion tube. The touch switch is connected to a control unit, and the control unit is connected to a water inlet valve.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The utility model is an infusion pump, comprising a pump body, wherein a pair of pump tube expansion limiters are arranged in the pump body, a channel is formed between the two pump tube expansion limiters, and a touch switch is arranged on the bottom side of the pump tube expansion limiter located at the top; the utility model also comprises an expansion tube passing through the channel, the two ends of the expansion tube are respectively connected to the infusion pump tube A and the infusion pump tube B, the end of the infusion pump tube B is connected to the water inlet sheath of the optical mirror, and a water inlet valve is arranged on the infusion pump tube B between the touch switch and the water inlet sheath of the optical mirror; the utility model also comprises a control unit, which includes a touch switch and a water inlet valve.

[0006] Furthermore, the pump body is provided with an upper roller and a lower roller, and the perfusion pump tube A passes through the area between the upper roller and the lower roller; and further includes a motor, which is connected to the lower roller and drives the lower roller to rotate.

[0007] Furthermore, the lower roller and the upper roller cooperate to squeeze the perfusion pump tube A located therebetween.

[0008] Furthermore, the expansion tube, the perfusion pump tube A and the perfusion pump tube B are all rubber tubes, and the wall thickness of the expansion tube is smaller than the wall thickness of the perfusion pump tube A and the perfusion pump tube B.

[0009] The utility model has the following beneficial effects:

[0010] The utility model is characterized in that an expansion tube that expands as the internal pressure of the pump tube increases is provided in the pump body, and a touch switch is provided on one side of the expansion tube, the touch switch is connected to the control unit, and the control unit is connected to the water inlet valve, so that when the pump is started in use, water is pressed into the pump tube, and the water pressure will cause the expansion tube to expand. When the volume of the expansion tube becomes larger, the touch switch is pushed up, and a signal is given to the pump body, and the pump stops running. When the water inlet valve is opened, the water pressure is reduced, the expansion tube returns to a cylindrical shape, the touch switch moves down, and a signal is given to the pump to control the pump to start again and close the water inlet valve. The above process is repeated to open and close the water inlet valve to achieve automatic start and stop.

[0011] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a structural diagram of the utility model when the water inlet valve is in a closed state;

[0014] Figure 2 This is a structural diagram of the utility model when the water inlet valve is in the open state. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0017] See also Figure 1-2As shown, the utility model is an infusion pump, comprising a pump body 1, in which an upper roller 3 and a lower roller 2 are provided, and the pump body 1 comprises a pump pipe passing through the upper roller 3 and the lower roller 2, the pump pipe comprising an infusion pump pipe A61 passing between the upper roller 3 and the lower roller 2, the end of the infusion pump pipe A61 being connected to an expansion pipe 60, the end of the expansion pipe 60 being connected to the infusion pump pipe B62, the end of the infusion pump pipe B62 being connected to the water inlet sheath 7 of the optical mirror; and a pair of pump pipe expansion limiters 4 arranged in a gap are provided on the pump body 1, a channel is formed between the two pump pipe expansion limiters 4, the infusion pump pipe B62 passes through the above-formed channel, and a touch switch 5 is provided on the bottom side of the pump pipe expansion limiter 4 located at the top.

[0018] Specifically, it also includes a motor, which is connected to the lower roller 2 and drives the lower roller 2 to rotate; the lower roller 2 and the upper roller 3 cooperate to squeeze the perfusion pump tube A61 located therebetween.

[0019] Specifically, a water inlet valve 63 is provided on the perfusion pump tube B62 located between the touch switch 5 and the optical mirror water inlet sheath 7; and a control unit is also included, which includes the touch switch 5 and the water inlet valve 63.

[0020] Specifically, the expansion tube 60, the perfusion pump tube A61 and the perfusion pump tube B62 are all rubber tubes, and the wall thickness of the expansion tube 60 is smaller than the wall thickness of the perfusion pump tube A61 and the perfusion pump tube B62; therefore, during use, when the pressure in the pump tube rises to a certain level, the expansion tube 60 expands to a greater extent than the perfusion pump tube A61 and the perfusion pump tube B62, that is, at this time, the outer wall of the expanded expansion tube 60 will hit the touch switch 5.

[0021] Specifically, the implementation is as follows:

[0022] Step 1: Connect the two ends of the pump tube to the perfusion pump and the optical mirror water inlet sheath 7 respectively, that is, control the perfusion pump tube A61 and the perfusion pump tube B62 to connect the perfusion pump and the optical mirror water inlet sheath 7 respectively;

[0023] Step 2: Figure 1 After the priming pump is started, the water inlet valve 63 is opened, and the lower roller 2 and the upper roller 3 cooperate to squeeze the priming pump tube A61 located between them, thereby pressing the water in the pump tube into the water inlet sheath 7 of the optical mirror; Figure 2 When the water inlet valve 63 is closed, the priming pump continues to pressurize water, and the water pressure causes the expansion tube 60 to expand. When the volume increases, the touch switch 5 is pushed up.

[0024] Step 3: Touch the top of the switch to give the priming pump a signal, and the priming pump stops running;

[0025] Step 4: At this time, the water inlet valve 63 is opened, the water pressure is reduced, the expansion tube 60 is restored, the touch switch 5 is moved down, and a signal is given to the priming pump, and the priming pump is started again;

[0026] Step 5: Repeat the above steps to open and close the water inlet valve 63 to achieve automatic start and stop.

[0027] The infusion pump provided in this application can be used to infuse physiological saline into patients during surgery.

[0028] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0029] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A perfusion pump, characterized in that: The invention comprises a pump body (1), wherein a pair of pump tube expansion limiters (4) are provided in the pump body (1), a channel is formed between the two pump tube expansion limiters (4), and a touch switch (5) is provided on the bottom side of the pump tube expansion limiter (4) located at the top; It also includes an expansion tube (60) passing through the channel, the two ends of the expansion tube (60) are respectively connected to the irrigation pump tube A (61) and the irrigation pump tube B (62), the end of the irrigation pump tube B (62) is connected to the optical mirror water inlet sheath (7), and the irrigation pump tube B (62) is provided with a water inlet valve (63) between the touch switch (5) and the optical mirror water inlet sheath (7); It also includes a control unit, which includes a touch switch (5) and a water inlet valve (63).

2. The infusion pump according to claim 1, characterized in that: An upper roller (3) and a lower roller (2) are further provided in the pump body (1), and the perfusion pump tube A (61) passes through the area between the upper roller (3) and the lower roller (2); It also includes a motor, which is connected to the lower roller (2) and drives the lower roller (2) to rotate.

3. The infusion pump according to claim 2, characterized in that: The lower roller (2) and the upper roller (3) cooperate to squeeze the perfusion pump tube A (61) located therebetween.

4. The infusion pump according to claim 1, characterized in that: The expansion tube (60), the perfusion pump tube A (61) and the perfusion pump tube B (62) are all rubber tubes, and the wall thickness of the expansion tube (60) is smaller than the wall thickness of the perfusion pump tube A (61) and the perfusion pump tube B (62).

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