Pump attaching implement and fluid delivery pump set

Abstract

A pump mounting implement according to the present disclosure comprises: a base body that can be attached to a fluid delivery pump; and a moving body which can be attached to a pump support body capable of supporting the fluid delivery pump, and which is attached to the base body so as to be movable with respect to the base body in a state in which the base body is attached to the fluid delivery pump.

Description

Pump Mounting Device and Liquid Delivery Pump Set

[0001] The present disclosure relates to a pump mounting device and a liquid delivery pump set.

[0002] Conventionally, medical stands that can hang drip bags, infusion bags, etc., such as Irrigard stands, IV (Intravenous) stands, and drip stands, are known. Liquid delivery pumps such as infusion pumps and syringe pumps may be attached to a pump support such as a medical stand and used. Patent Document 1 describes an infusion pump that can be attached to a pole such as a medical stand. The infusion pump described in Patent Document 1 can be attached to a pole via a mount that is detachable from the infusion pump.

[0003] In the infusion pump described in Patent Document 1, the mounting orientation of the mount with respect to the infusion pump can be selected on the left or right side in a front view of the infusion pump. Thus, the infusion pump of Patent Document 1 can be selectively arranged at a position on either the right or left side with respect to the pole. Therefore, when attaching a plurality of infusion pumps to one pole, it becomes possible to distribute and arrange those infusion pumps on the left and right of the pole.

[0004] Japanese Unexamined Patent Application Publication No. 2015 - 112335

[0005] The mount described in Patent Document 1 may be stored in a state of being attached to an infusion pump at a medical site such as a hospital. In such a case, in order to change the mounting orientation of the mount described in Patent Document 1 with respect to the infusion pump, it is necessary to remove the mount from the infusion pump. Therefore, for users such as doctors and nurses, the operation of changing the mounting orientation of the mount is troublesome. That is, there is still room for improvement in the mount as a pump mounting device described in Patent Document 1 from the viewpoint of the work efficiency of changing the mounting orientation with respect to the infusion pump as a liquid delivery pump.

[0006] An object of the present disclosure is to provide a pump mounting device and a liquid delivery pump set that can change the attachment position to a pump support without removing the liquid delivery pump.

[0007] A pump mounting device as a first aspect of the present disclosure is a pump mounting device comprising: (1) a base body that can be attached to a liquid transfer pump; and a movable body that can be attached to a pump support capable of supporting the liquid transfer pump, and is attached to the base body so as to be movable relative to the base body when the base body is attached to the liquid transfer pump.

[0008] One embodiment of the present disclosure is a pump mounting device as described in (1) above, wherein when the operating position of the liquid transfer pump is defined as the position in which the vertical upper and lower surfaces of the liquid transfer pump coincide with the vertical upper and lower surfaces of the liquid transfer pump in the operating state, the movable body is mounted to the base body attached to the liquid transfer pump in the operating position so as to be movable between a plurality of different positions in a direction along a horizontal plane perpendicular to the vertical direction.

[0009] A pump mounting device as one embodiment of the present disclosure is the pump mounting device according to (2) above, wherein the movable body is rotatably mounted to the base body, and the movable body is movable between the plurality of positions by rotating with respect to the base body which is attached to the liquid pump in the operating position.

[0010] A pump mounting device as one embodiment of the present disclosure is the pump mounting device according to (3) above, wherein the movable body is movable between the plurality of positions by rotating around a central axis extending along the horizontal plane with respect to the base body which is attached to the liquid pump in the operating position.

[0011] A pump mounting device as one embodiment of the present disclosure is the pump mounting device according to (3) above, wherein the movable body is movable between the plurality of positions by rotating around a vertically extending central axis with respect to the base body which is attached to the liquid pump in the operating position.

[0012] A pump mounting device as one embodiment of the present disclosure is the pump mounting device according to any one of (2) to (5) above, wherein the liquid transfer pump has a front surface that constitutes one side surface in the operating position, and the base body attached to the liquid transfer pump in the operating position is movable relative to the base body between a first position located on one side in the left-right direction and a second position located on the other side in the left-right direction, in a front view taken from the front side of the liquid transfer pump.

[0013] A pump mounting device as one embodiment of the present disclosure is the pump mounting device described in (6) above, wherein the movable body has a locking portion that can be locked by the base body at the first position and the second position, respectively.

[0014] A pump mounting device as one embodiment of the present disclosure is the pump mounting device described in (7) above, wherein the movable body comprises a main body that movably holds the locking portion, and a biasing portion that biases the locking portion toward the base body at the first position and the second position, respectively.

[0015] A pump mounting device as one embodiment of the present disclosure is the pump mounting device described in (8) above, wherein the main body portion comprises a support mounting portion that can be attached to the pump support, and at the first position and the second position, the biasing portion is located between the base body and the support mounting portion of the main body portion in the left-right direction in the front view, and biases the locking portion in the left-right direction from the side where the support mounting portion is located toward the side where the base body is located.

[0016] A pump mounting device as one embodiment of the present disclosure is the pump mounting device according to any one of (6) to (9) above, wherein the lower vertical end of the movable body at the first position and the second position is positioned substantially equal in the vertical direction to the lower vertical end of the base body.

[0017] A second embodiment of the present disclosure is a liquid transfer pump set comprising: (11) a pump mounting device as described in any one of (1) to (10) above, and the liquid transfer pump.

[0018] According to this disclosure, it is possible to provide a pump mounting device and a pump set that allow the mounting position on the pump support to be changed without removing it from the pump.

[0019] This figure shows a liquid transfer pump set as one embodiment of the present disclosure, and a pump mounting device as one embodiment of the present disclosure in a state where it is not attached to the liquid transfer pump. This figure shows the pump mounting device shown in Figure 1 attached to the liquid transfer pump. This figure shows the liquid transfer pump set attached to the pole portion of the pump support with the movable body in the first position. This figure shows the liquid transfer pump set attached to the pole portion of the pump support with the movable body in the second position. This is a front perspective view of the liquid transfer pump with the door closed relative to the main body. This is a front perspective view of the liquid transfer pump with the door open relative to the main body. This is a perspective view of the pump mounting device. This is an exploded perspective view of the base and movable body of the pump mounting device. This is a top view of the pump mounting device viewed from above vertically downwards. This figure shows the pump mounting device with the movable body in the first position. This figure shows the pump mounting device with the movable body in the process of moving from the first position to the second position. This figure shows the pump mounting device with the movable body in the second position. This figure shows the state before the liquid transfer pump is attached to the pump mounting device. This figure shows the liquid transfer pump in the process of being attached to the pump mounting device. This figure shows the liquid transfer pump after it has been attached to the pump mounting device. This figure shows the liquid transfer pump after it has been removed from the pump mounting device. This figure shows one modified example of the recess in the base body. This is a top view of one modified example of the pump mounting device.

[0020] Hereinafter, embodiments of the pump mounting device and liquid transfer pump set relating to this disclosure will be illustrated with reference to the drawings. In each figure, identical components are denoted by the same reference numerals.

[0021] Figures 1 and 2 show a liquid transfer pump set 100 as one embodiment of the liquid transfer pump set according to the present disclosure. As shown in Figures 1 and 2, the liquid transfer pump set 100 comprises a liquid transfer pump 101 and a pump mounting device 1. Figure 1 shows the state in which the pump mounting device 1 is not attached to the liquid transfer pump 101. Figure 2 shows the state in which the pump mounting device 1 is attached to the liquid transfer pump 101.

[0022] The fluid delivery pump 101 is a medical pump capable of delivering liquids such as drug solutions into a living body through a medical tube. The fluid delivery pump 101 in this embodiment is an infusion pump capable of delivering liquids in the medical tube in the direction of extension of the medical tube. However, the fluid delivery pump 101 is not limited to an infusion pump, and may be other medical pumps such as a syringe pump.

[0023] Figures 3A and 3B show the fluid delivery pump set 100 shown in Figure 2 attached to the pole portion 151 of the pump support 150. Figures 3A and 3B also show the medical tube 160 that is sandwiched between the fluid delivery pump 101. The pump mounting device 1 is used when attaching the fluid delivery pump 101 to a pump support 150, such as a medical stand capable of supporting the fluid delivery pump 101. More specifically, the pump mounting device 1 of this embodiment is used when attaching the fluid delivery pump 101 to the pole portion 151 of the medical stand that serves as the pump support 150. The pole portion 151 is the part that extends in the vertical direction A when the medical stand serving as the pump support 150 is in use.

[0024] As shown in Figures 1 to 3B, the pump mounting device 1 comprises a base body 2 and a movable body 3.

[0025] The base body 2 is attachable to the liquid transfer pump 101. In other words, the base body 2 has a pump attachment portion that can be attached to the liquid transfer pump 101. As will be described in detail later, the base body 2 of this embodiment comprises a base body 10, a gripping portion 20 (see Figure 8, etc.) attached to the base body 10 and capable of gripping the attachment projection 108 (see Figure 1) of the liquid transfer pump 101, and a rotating knob 30 (see Figure 6, etc.) rotatably attached to the base body 10. In this embodiment, the gripping portion 20 constitutes the pump attachment portion. The rotating knob 30 is used to release and remove the liquid transfer pump 101 that is gripped by the gripping portion 20. Details of this will be described later.

[0026] The mobile body 3 can be attached to the pump support 150. In other words, the mobile body 3 has a support attachment portion that can be attached to the pump support 150. As will be described in detail later, the mobile body 3 of this embodiment comprises a main body portion 40 (see Figure 6, etc.), a locking portion 50 (see Figure 6, etc.), and a biasing portion 60 (see Figure 6, etc.). The main body portion 40 of this embodiment has a support attachment portion that can be attached to the pole portion 151 of the pump support 150. The support attachment portion of this embodiment is a pole clamp portion 41 that can clamp the pole portion 151.

[0027] The mobile body 3 is attached to the base body 2 so as to be movable relative to the base body 2 while the base body 2 is attached to the liquid transfer pump 101. More specifically, the mobile body 3 of this embodiment is attached so as to be movable relative to the base body 2 between a first position shown by a solid line in Figures 1 and 2 and a second position shown by a dashed line in Figures 1 and 2. Furthermore, the mobile body 3 is movable relative to the base body 2 between the above-mentioned first position and second position without removing the liquid transfer pump 101 attached to the base body 2. Figure 3A shows the mobile body 3 in the first position, attached to the pole portion 151 of the pump support 150. Figure 3B shows the mobile body 3 in the second position, attached to the pole portion 151 of the pump support 150.

[0028] In this way, the pump mounting device 1 can be attached to the pump support 150 without being removed from the liquid transfer pump 101, and while it remains attached to the liquid transfer pump 101.

[0029] Further details of the liquid transfer pump set 100 of this embodiment will be described below.

[0030] [Liquid Transfer Pump 101] In this embodiment, the upper and lower surfaces of the liquid transfer pump 101 in the vertical direction A are predetermined when in use. For the convenience of explanation, the position in which the upper and lower surfaces of the liquid transfer pump 101 in the vertical direction A coincide with the upper and lower surfaces of the liquid transfer pump 101 in the vertical direction A when in use will be referred to as the operating position of the liquid transfer pump 101. Figures 1 to 3B show the liquid transfer pump 101 in the operating position.

[0031] Furthermore, the fluid delivery pump 101 of this embodiment has a front side that forms one side facing horizontally when in use. More specifically, the front side of the fluid delivery pump 101 of this embodiment is one side on which the display unit 210, the operation unit 220, etc., are provided, as shown in Figures 1 to 3B.

[0032] Furthermore, the infusion pump 101 of this embodiment is a so-called "vertical type" infusion pump, configured to be able to clamp a medical tube extending in the vertical direction A when in use, but it is not limited to this configuration. The infusion pump 101 may also be a so-called "horizontal type" infusion pump, configured to be able to clamp a medical tube extending along a horizontal plane perpendicular to the vertical direction A when in use. In this embodiment, a vertical type infusion pump will be described below as an example of the infusion pump 101.

[0033] Figure 4 shows details of the fluid delivery pump 101 of this embodiment. Figure 4 is a front perspective view of the fluid delivery pump 101 of this embodiment. In Figure 4, a medical tube 160 is also shown for convenience of explanation. As shown in Figure 4, the fluid delivery pump 101 comprises a main body 102 and a door 103 that is attached to the main body 102 so as to be openable and closable. The fluid delivery pump 101 shown in Figure 4 shows the door 103 closed relative to the main body 102. As shown in Figure 4, the fluid delivery pump 101 can hold the medical tube 160 at a position between the main body 102 and the door 103. The liquid, such as a drug solution contained in the infusion container, is injected into the patient's vein through the medical tube 160. The fluid delivery pump 101 can control the flow rate of the liquid flowing from the upstream side to the downstream side of the flow path within the medical tube 160.

[0034] Figure 4 shows the liquid transfer pump 101 in its operating position. As shown in Figure 4, the liquid transfer pump 101 of this embodiment is equipped with a handle portion 106 on the upper surface of the main body portion 102 in the vertical direction A, which makes it easy to grip when carrying it. In addition, the liquid transfer pump 101 of this embodiment is equipped with a plurality of legs portion 107 on the lower surface of the main body portion 102 in the vertical direction A. By utilizing the plurality of legs portion 107, the liquid transfer pump 101 of this embodiment can be placed on a substantially horizontal mounting surface while maintaining its operating position.

[0035] As shown in Figure 4, the front of the liquid transfer pump 101 when the door portion 103 is closed relative to the main body portion 102, that is, the outer surface in the thickness direction of the door portion 103, is provided with a display portion 210 on which various information is displayed, an operation portion 220 on which operation switches are arranged, a door lock lever 230 used when opening and closing the door portion 103 relative to the main body portion 102 and which can lock the door portion 103 when it is closed, and an operation indicator 240 that lights up, turns off, or flashes to show the operating status of the liquid transfer pump 101 to the outside, depending on the operating status of the liquid transfer pump 101.

[0036] The display unit 210 can display various information about the fluid delivery pump 101, such as the set value and actual value of the flow rate per unit time (fluid delivery rate (mL / h)), the planned amount and cumulative amount of drug solution to be administered to the patient, various alarms regarding the operating status of the fluid delivery pump 101, the set level of the sensitivity for detecting blockage of the medical tube 160 by the downstream blockage sensor 272 (see Figure 5), which will be described later, whether or not it is connected to the AC power supply, and the remaining amount of the built-in battery. The display unit 210 can be configured as an image display device, such as a color liquid crystal display device. Furthermore, the various alarms displayed on the display unit 210 include, for example, a bubble sign displayed when a bubble is detected in the medical tube 160 by the bubble sensor 270 (see Figure 5), which will be described later; a battery sign displayed when the voltage of the built-in battery of the fluid delivery pump 101 drops; an occlusion sign displayed when the upstream occlusion sensor 271 (see Figure 5) or downstream occlusion sensor 272 (see Figure 5), which will be described later, determines that the medical tube 160 is occluded; a door sign displayed when the door section 103 is open relative to the main body section 102; and a completion sign displayed when the infusion is completed.

[0037] The control unit 220 includes an up / down switch 221 for setting the liquid delivery speed and planned volume, a fast-forward switch 222 that allows liquid delivery at a speed faster than the set predetermined liquid delivery speed (mL / h) while pressed, a start switch 223 that starts liquid delivery when pressed, a stop switch 224 that stops liquid delivery when pressed, a power switch 225 for turning the liquid delivery pump 101 on and off, and a menu selection switch 226. The stop switch 224 also functions as a mode switch that switches to silent mode when pressed.

[0038] The door lock lever 230 can lock the door section 103 in a closed position relative to the main body section 102. Specifically, when the door section 103 is closed relative to the main body section 102, pushing down the door lock lever 230 locks the position of the door section 103 relative to the main body section 102. Conversely, pulling up the door lock lever 230 from this locked state releases the lock of the door section 103 relative to the main body section 102. As a result, the door section 103 becomes freely openable and closable relative to the main body section 102, making it possible to open the door section 103 relative to the main body section 102.

[0039] The operation indicator 240 is located above the front of the liquid transfer pump 101. The operation indicator 240 may contain, for example, light-emitting diodes that emit red, green, and yellow light. The operation indicator 240 may flash green when liquid transfer is being performed at normal speed or at high speed. The operation indicator 240 may also turn off when the pump is stopped and no alarm has been triggered. Furthermore, the operation indicator 240 may flash red or light up yellow depending on the type of alarm that is being triggered.

[0040] Next, the internal structure of the door portion 103 of the liquid transfer pump 101 and the structure of the main body portion 102 of the liquid transfer pump 101 will be described. Figure 5 is a front perspective view showing the liquid transfer pump 101 with the door portion 103 open relative to the main body portion 102. In Figure 5, for the sake of explanation, the medical tube 160 is shown by a dashed line.

[0041] As shown in Figure 5, the door section 103 is rotatably attached to the main body section 102 via the hinge section 104. This allows the door section 103 to open and close relative to the main body section 102.

[0042] On the inner surface of the door part 103, there are provided a tube pressing part 261 that presses the medical tube 160 toward each of the fingers 281a to 281e of the main body part 102 described later, an upstream pressing part 262 that sandwiches the medical tube 160 between the upstream blockage sensor 271 described later, a downstream pressing part 263 that sandwiches the medical tube 160 between the downstream blockage sensor 272 described later, and a pressing convex part 264 that sandwiches the medical tube 160 at the position of the bubble sensor 270 described later.

[0043] When the fingers 281a to 281e described later press the medical tube 160, the tube pressing part 261 receives the medical tube 160 and realizes the peristaltic movement of the medical tube 160 due to the pressing of the fingers 281a to 281e.

[0044] In the main body part 102 of the liquid feeding pump 101, there are provided a bubble sensor 270 for detecting the presence or absence of bubbles in the medical tube 160, an upstream blockage sensor 271 and a downstream blockage sensor 272 for detecting changes in the internal pressure of the medical tube 160, a clamp part 273 that automatically sandwiches the medical tube 160 and closes the flow path in the medical tube 160 when the door part 103 opens with respect to the main body part 102, a release lever 274 that can release the sandwiching of the medical tube 160 by this clamp part 273, an anti-free flow mechanism 275 including a clip that sandwiches the medical tube 160 and closes the flow path in the medical tube 160 when the door part 103 opens and is detachable with respect to the main body part 102, and a pump mechanism 280 including the fingers 281a to 281e described later and performing a liquid feeding operation in the liquid feeding direction through the medical tube 160. The anti-free flow mechanism 275 shown in FIG. 5 shows a state where the clip has been removed.

[0045] On the front surface of the main body part 102 of the liquid feeding pump 101, there is provided a tube mounting part 105 on which the medical tube 160 can be mounted. In this tube mounting part 105, the bubble sensor 270, the upstream blockage sensor 271, the fingers 281a to 281e, the downstream blockage sensor 272, the clamp part 273, and the anti-free flow mechanism 275 are arranged in order from the upstream side to the downstream side of the flow path.

[0046] The pump mechanism 280 includes a plurality of fingers 281a to 281e arranged along the extending direction of the medical tube 160 (vertical direction A in this embodiment) attached to the tube attachment portion 105 of the main body portion 102, a camshaft provided with a plurality of eccentric cams for individually moving the plurality of fingers 281a to 281e forward and backward with respect to the medical tube 160, and a drive motor for rotationally driving the camshaft.

[0047] The door portion 103 covers the above-described tube attachment portion 105 in a closed state with respect to the main body portion 102. And, as described above, the medical tube 160 is held between the main body portion 102 and the door portion 103. Further, as shown in FIGS. 3A and 3B, the liquid feeding pump 101 of the present embodiment is attached to the pole portion 151 of the medical stand as the pump support 150 via the pump attachment fixture 1 so that the medical tube 160 attached to the tube attachment portion 105 extends along the vertical direction A.

[0048] As shown in FIG. 1, the liquid feeding pump 101 of the present embodiment includes an attachment protrusion 108 that protrudes downward in the vertical direction A in the use posture and can be attached to the base main body 10 of the base body 2 of the pump attachment fixture 1.

[0049] As shown in FIG. 1, the lower end of the attachment protrusion 108 of the present embodiment in the vertical direction A is located above the vertical direction A with respect to the position of the lower ends of the plurality of leg portions 107 in the vertical direction A.

[0050] As shown in FIG. 1, the attachment protrusion 108 of the present embodiment includes a body portion 108a, a neck portion 108b, and a head portion 108c. The neck portion 108b is thinner than the body portion 108a and the head portion 108c. The outer diameter of the head portion 108c becomes thinner toward the tip. In other words, the head portion 108c of the present embodiment includes a tapered side surface 108c1 that is inclined with respect to the vertical direction A such that the outer diameter decreases downward in the vertical direction A in FIG. 1.

[0051] [Pump Attachment Fixture 1] As described above, the pump attachment fixture 1 includes a base body 2 and a moving body 3.

[0052] The details of the base body 2 and the mobile body 3 of this embodiment will be described below. For the sake of convenience, the posture and orientation of the base body 2 and the mobile body 3 will be described based on the posture and orientation of the pump mounting device 1 attached to the liquid transfer pump 101 in the operating position. Also for the sake of convenience, the width direction of the liquid transfer pump 101 in the front view shown in Figures 1 to 3B will be referred to as the "left-right direction B" within the horizontal direction. Also, the depth direction of the liquid transfer pump 101 in the front view shown in Figures 1 to 3B will be referred to as the "front-back direction C" within the horizontal direction.

[0053] Figure 6 is a perspective view of the pump mounting device 1 of this embodiment. As shown in Figure 6, the movable body 3 of this embodiment is attached to the base body 2 via the shaft member 4. In other words, the movable body 3 of this embodiment is rotatable relative to the base body 2 about the central axis O of the shaft member 4. Figure 7 is an exploded perspective view of the base body 2 and movable body 3 shown in Figure 6, separated and disassembled. Figure 8 is a top view of the pump mounting device 1 shown in Figure 6, viewed from above in the vertical direction A downwards. Figures 9A to 9C illustrate the operation of the movable body 3 of this embodiment relative to the base body 2. Figures 10A to 10D illustrate the attachment and detachment operation of the base body 2 of the pump mounting device 1 of this embodiment and the mounting projection 108 of the liquid transfer pump 101.

[0054] <Base Body 2> The base body 2 of this embodiment comprises a base body 10, a gripping portion 20, and a rotating knob 30.

[0055] The base body 10 of this embodiment comprises a substantially rectangular plate-shaped top plate portion 11 whose vertical direction A is the thickness direction, and side plate portions 12 that protrude downward in the vertical direction A from the outer edges of the top plate portion 11 that are opposite to each other in the front-rear direction C. The top plate portion 11 defines a through hole 11a that penetrates in the vertical direction A.

[0056] At each end of the side plate portion 12 in the left-right direction B, a shaft body, which will later be described as a locking portion 50 of the movable body 3, is inserted into a recess 13 into which the movable body 3 can be locked. In other words, the base body 10 of this embodiment has two recesses 13 formed at different positions in the front-rear direction C at the right end in the left-right direction B. For the sake of explanation, these two recesses 13 will be referred to as the "first recess 13a" below. The base body 10 of this embodiment also has two recesses 13 formed at different positions in the front-rear direction C at the left end in the left-right direction B. For the sake of explanation, these two recesses 13 will be referred to as the "second recess 13b" below. When the first recess 13a and the second recess 13b are not particularly distinguished, they will simply be referred to as the "recess 13".

[0057] Furthermore, each side plate portion 12 of this embodiment is formed with a projection receiving recess 14 capable of accommodating the projection 42b1 provided on the leaf spring 42b of the movable body 3, which will be described later.

[0058] The gripping portion 20 of this embodiment is configured to grip the mounting projection 108 of the liquid transfer pump 101. More specifically, as shown in Figure 8, the gripping portion 20 of this embodiment includes a pair of oscillating members 21a and 21b, and a biasing member 22 that biases this pair of oscillating members 21a and 21b.

[0059] Each of the pair of oscillating members 21a and 21b is attached to the base body 10 so as to be able to swing in the left-right direction B. More specifically, the pair of oscillating members 21a and 21b are positioned below the through hole 11a in the vertical direction A, and are configured to move closer to and further apart in the left-right direction B. Furthermore, the pair of oscillating members 21a and 21b define a receiving opening 23 between them at a position below the through hole 11a in the vertical direction A, which is capable of receiving the mounting projection 108. The receiving opening 23 is a substantially circular opening when viewed from above (see Figure 8), and its diameter R1 (see Figure 10A) is larger than the maximum diameter R3 (see Figure 10A) of the neck portion 108b of the mounting projection 108, and smaller than the maximum diameter R2 (see Figure 10A) of the body portion 108a and the maximum diameter R4 (see Figure 10A) of the head portion 108c.

[0060] The biasing member 22 biases the pair of oscillating members 21a and 21b so that they are positioned below the through hole 11a in the vertical direction A and close to each other in the left-right direction B. The biasing member 22 may be an elastic member such as a coil spring.

[0061] The pair of oscillating members 21a and 21b are pressed against the tapered side surface 108c1 of the head 108c of the mounting projection 108 of the liquid pump 101, which is inserted through the through hole 11a. This causes them to move apart in the left-right direction B against the biasing force of the biasing member 22 (see Figure 10B). As a result, the receiving opening 23 widens, and the head 108c of the mounting projection 108 passes through the receiving opening 23. Once the head 108c has passed through the receiving opening 23, the pair of oscillating members 21a and 21b are fitted into the annular groove formed around the neck portion 108b by the biasing force of the biasing member 22 (see Figure 10C). As a result, the mounting projection 108 is gripped by the gripping portion 20. In other words, the liquid pump 101 is attached to the base body 2. In this state, as shown in Figure 10C, the upper surface 11b of the top plate portion 11 is in contact with the lower surface of the liquid transfer pump 101, supporting the liquid transfer pump 101 from below in the vertical direction A.

[0062] The base body 2 may be equipped with an installation status indicator that allows external identification of whether or not the base body 2 has been successfully attached to the liquid transfer pump 101. The configuration of the installation status indicator is not particularly limited, but for example, a member that moves when pressed by the mounting projection 108 can be placed in a position visible from the outside and used as an installation status indicator.

[0063] In this embodiment, the rotating knob 30 is rotatably mounted to the top plate portion 11. By rotating the rotating knob 30 relative to the top plate portion 11, the liquid transfer pump 101 can be removed from the base body 2.

[0064] More specifically, the rotating knob 30 of this embodiment comprises an operating section 31 and a cam section 32 connected to the operating section 31. Therefore, when the operating section 31 is rotated, the cam section 32 also rotates in accordance with the operating section 31. The cam section 32 is engaged with the pair of oscillating members 21a and 21b of the gripping section 20 described above. By rotating the cam section 32, the pair of oscillating members 21a and 21b can be separated in the left-right direction B (see Figure 10D). As a result, the receiving opening 23 widens, and the gripping state of the mounting projection 108 by the gripping section 20 is released. Therefore, the mounting projection 108 becomes removable upward in the vertical direction A from the receiving opening 23, and the liquid transfer pump 101 can be removed from the base body 2.

[0065] In this embodiment, as shown in Figures 10A to 10D, the base body 2 and the liquid pump 101 are configured to be detachable using the gripping portion 20 and the rotating knob 30, but this detachment mechanism is not limited to the configuration of this embodiment.

[0066] <Movable Body 3> As shown in Figures 3A, 3B, and 9A to 9C, the movable body 3 of this embodiment is mounted on the base body 2 attached to the liquid delivery pump 101 in the working position so as to be movable between multiple different positions along a horizontal plane perpendicular to the vertical direction A. Therefore, when attaching the liquid delivery pump 101 to, for example, the pole portion 151 of a medical stand serving as a pump support 150, it becomes easier to adjust both the position of the liquid delivery pump 101 in the circumferential direction of the pole portion 151 and the orientation of the liquid delivery pump 101. In other words, with the pump mounting device 1 of this embodiment, the liquid delivery pump 101 can be attached to the pole portion 151 at different positions in the circumferential direction of the pole portion 151 while maintaining the orientation of the liquid delivery pump 101 in a predetermined direction.

[0067] For example, when attaching multiple fluid pumps 101 to a single pole section 151, the multiple fluid pumps 101 may be positioned at different locations in the circumferential direction of the pole section 151 for purposes such as ensuring the posture stability of the pump support 150 and suppressing mutual interference between the medical tubes 160 set on each fluid pump 101. According to the pump mounting device 1 of this embodiment, the arrangement and orientation of the multiple fluid pumps 101 with respect to the pole section 151 can be easily adjusted to a desired arrangement and orientation, for example, by attaching them to the pole section 151 with the front faces of the multiple fluid pumps 101 aligned (see Figures 3A and 3B).

[0068] Specifically, the movable body 3 of this embodiment is rotatably mounted on the base body 2. The movable body 3 of this embodiment can move between multiple positions, namely a first position (see Figures 3A and 9A) and a second position (see Figures 3B and 9C), by rotating relative to the base body 2 which is attached to the liquid delivery pump 101 in the operating position.

[0069] More specifically, in a front view (see Figures 1 to 3B) of the liquid transfer pump 101, the base body 2 attached to the liquid transfer pump 101 in the operating position is movable relative to the base body 2 between a first position (see Figure 3A) located on the right side, which is one side of the left-right direction B, and a second position (see Figure 3B) located on the left side, which is the other side of the left-right direction B. In this way, the liquid transfer pump 101 can be selectively positioned on either side of the pole portion 151 of the pump support 150 while maintaining the orientation of the liquid transfer pump 101.

[0070] In this embodiment, the movable body 3 is movable between a first position (see Figures 3A and 9A) and a second position (see Figures 3B and 9C) by rotating around a central axis O that extends in the front-rear direction C along the horizontal plane relative to the base body 2 attached to the liquid pump 101 in the operating position. However, the movable body 3 may also be rotatable around a central axis that extends in the vertical direction A relative to the base body 2 attached to the liquid pump 101 in the operating position (see Figure 12).

[0071] Furthermore, the movable body 3 of this embodiment is equipped with a locking portion 50 that can be locked by the base body 2 at each of the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C). In this way, it is possible to prevent the movable body 3 from moving unintentionally from each of the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C).

[0072] More specifically, the movable body 3 of this embodiment comprises a main body portion 40, a locking portion 50, and a biasing portion 60.

[0073] The main body 40 movably holds the locking portion 50. In this embodiment, the locking portion 50 is a long shaft. The biasing portion 60 biases the shaft, which serves as the locking portion 50, toward the base body 2 at the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C). In this embodiment, the biasing portion 60 is a coil spring.

[0074] The main body portion 40 of this embodiment includes a pole clamp portion 41 capable of clamping the pole portion 151 in the front-rear direction C, and arm portions 42 that protrude from both ends of the pole clamp portion 41 in the front-rear direction C and are rotatably attached to the base body 10 of the base body 2.

[0075] The pole clamp portion 41 is configured to clamp the pole portion 151, which extends in the vertical direction A, in the front-rear direction C when the movable body 3 is in the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C).

[0076] Each arm portion 42 comprises an arm body 42a and a resin leaf spring 42b that is attached to the arm body 42a so as to be able to swing in the front-rear direction C. The leaf spring 42b has a projection 42b1 that fits into projection receiving recesses 14 formed on each side plate portion 12 of the base body 10 of the base body 2 when the movable body 3 is in the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C).

[0077] In this embodiment, the shaft body serving as the locking portion 50 can be fitted into the first recess 13a of the base body 2 when the movable body 3 is in the first position (see Figures 3A and 9A). By fitting the shaft body serving as the locking portion 50 into the first recess 13a of the base body 2, the movable body 3 becomes unable to move from the first position (see Figures 3A and 9A) to the second position (see Figures 3B and 9C). In other words, the movable body 3 can be locked in the first position (see Figures 3A and 9A).

[0078] As shown in Figure 9A, the shaft body acting as the locking portion 50 is biased toward the bottom of the first recess 13a by the coil spring acting as the biasing portion 60. Therefore, in order to move the movable body 3 from the first position (see Figures 3A and 9A) to the second position (see Figures 3B and 9C), it is necessary to move the locking portion 50 to the right against the biasing force of the biasing portion 60.

[0079] Furthermore, the shaft body serving as the locking portion 50 in this embodiment can be fitted into the second recess 13b of the base body 2 when the movable body 3 is in the second position (see Figures 3B and 9C). By fitting the shaft body serving as the locking portion 50 into the second recess 13b of the base body 2, the movable body 3 becomes unable to move from the second position (see Figures 3B and 9C) to the first position (see Figures 3A and 9A). In other words, the movable body 3 can be locked in the second position (see Figures 3B and 9C).

[0080] As shown in Figure 9C, the shaft body acting as the locking portion 50 is biased toward the bottom of the second recess 13b by the coil spring acting as the biasing portion 60. Therefore, in order to move the movable body 3 from the second position (see Figures 3B and 9C) to the first position (see Figures 3A and 9A), it is necessary to move the locking portion 50 to the left against the biasing force of the biasing portion 60.

[0081] As described above, the movable body 3 of this embodiment is configured to be lockable by the base body 2 at the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C).

[0082] In this embodiment, the shaft body, which serves as the locking portion 50, is locked to the base body 2 at different points in the front-rear direction C at the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C). Therefore, the locking state of the movable body 3 by the base body 2 can be made more stable.

[0083] Furthermore, in this embodiment, the biasing portion 60 is located in the left-right direction B between the base body 2 and the pole clamp portion 41, which serves as the support attachment portion of the main body 40, at both the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C). The biasing portion 60 in this embodiment biases the shaft body, which serves as the locking portion 50, from the side where the pole clamp portion 41 is located toward the side where the base body 2 is located, in the left-right direction B. Therefore, in the state where the pole portion 151 is clamped in the pole clamp portion 41, in order to release the locking state of the movable body 3 by the base body 2, it is necessary to move the shaft body, which serves as the locking portion 50, toward the pole portion 151, against the biasing force of the biasing portion 60. In other words, when the pole portion 151 is clamped in the pole clamp portion 41, the pole portion 151 becomes an obstacle, making it difficult to move the shaft body, which serves as the locking portion 50. Therefore, it is possible to suppress the occurrence of erroneous operation in which the locking state of the movable body 3 by the base body 2 is accidentally released while the pole portion 151 is clamped in the pole clamp portion 41.

[0084] The movable body 3 in this embodiment is configured to be lockable by the base body 2 at the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C), but is not limited to this configuration. The movable body 3 may be configured to be lockable by the base body 2 not only at the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C), but also at other positions, such as the position shown in Figure 9B.

[0085] Furthermore, as described above, the movable body 3 of this embodiment is equipped with a leaf spring 42b having a projection 42b1. Therefore, even if the shaft body, which serves as the locking part 50, is disengaged from the recess 13 of the base body 2, the projection 42b1 of the movable body 3 remains engaged with the projection receiving recess 14 of the base body 2. As a result, even if the shaft body, which serves as the locking part 50, is disengaged from the recess 13 of the base body 2, the movable body 3 will not rotate relative to the base body 2 unless a predetermined external force is applied. In other words, even if the shaft body, which serves as the locking part 50, is moved unintentionally, the movable body 3 is configured not to rotate relative to the base body 2 unless a predetermined external force is applied by the user. Therefore, unintended rotation of the movable body 3 relative to the base body 2 can be suppressed.

[0086] In this embodiment, the movable body 3 includes a leaf spring 42b with a projection 42b1 that can be fitted into a projection receiving recess 14 of the base body 2, but the configuration is not limited to this. The base body 2 may also be configured to include a leaf spring with a projection that can be fitted into a projection receiving recess formed on the movable body 3.

[0087] Furthermore, it is preferable that the movable body 3 is equipped with a locking state indicator that shows to the outside the locking state of the shaft body, which serves as the locking portion 50, by the base body 2 at each of the first position (see Figures 3A and 9A) and second position (see Figures 3B and 9C). The configuration of the locking state indicator is not particularly limited, but for example, a member that moves as the shaft body, which serves as the locking portion 50, fits into the recess 13 can be used as a locking state indicator by arranging it in a position that is visible from the outside.

[0088] Furthermore, the lower end of the movable body 3 in the vertical direction A at the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C) is positioned approximately equal to the lower end of the base body 2 in the vertical direction A. In this way, when the pump mounting device 1 with the liquid transfer pump 101 attached is placed on a substantially horizontal mounting surface with the movable body 3 in the first position (see Figures 3A and 9A) and the second position (see Figures 3B and 9C), the pump mounting device 1 can be placed on the mounting surface while maintaining the liquid transfer pump 101 in the working position.

[0089] As shown in Figures 9A to 9C, it is preferable that the base body 2 and the movable body 3 are equipped with anti-slip parts 70 that can prevent them from sliding on the mounting surface when they are placed on the mounting surface. The anti-slip parts 70 may be, for example, rubber protrusions.

[0090] The pump mounting device and liquid transfer pump set relating to this disclosure are not limited to the specific configurations shown in the embodiments described above, and various modifications and changes are possible as long as they do not deviate from the scope of the claims.

[0091] The recess 13 of the base body 2 in the above-described embodiment has a configuration in which the side surface located above the vertical direction A extends in a substantially horizontal manner, but the configuration is not limited to this. Figure 11 shows a modified example of the recess 13. As shown in Figure 11, the side surface 80 located above the vertical direction A of the recess 13 may be inclined toward the open end of the recess 13 toward the downward direction of the vertical direction A. By doing so, the shaft body acting as the locking portion 50 is more easily pressed toward the bottom side of the recess 13 by the side surface 80, and it is possible to further suppress it from unintentionally falling out of the open end of the recess 13.

[0092] Furthermore, the movable body 3 shown in the above-described embodiment is movable between a first position (see Figures 3A and 9A) and a second position (see Figures 3B and 9C) by rotating around a central axis O extending along the horizontal plane, but the configuration is not limited to this. Figure 12 is a top view of one modified example of the pump mounting device 1. As shown in Figure 12, the movable body 3 may be rotatable around a central axis O1 extending vertically A relative to the base body 2 attached to the liquid transfer pump 101 in the operating position. The movable body 3 shown in Figure 12 includes a main body portion 40 that is rotatable around the central axis O1 at a position below the base body 2 in the vertical direction A. As the main body portion 40 rotates around the central axis O1, the pole clamp portion 41 also rotates around the central axis O1. In this way, the movable body 3 shown in Figure 12 can change its mounting position on the pole portion 151 by rotating around the central axis O1.

[0093] This disclosure relates to pump mounting fixtures and liquid transfer pump sets.

[0094] 1: Pump mounting device 2: Base body 3: Moving body 4: Shaft member 10: Base body 11: Top plate 11a: Through hole 11b: Top surface 12: Side plate 13: Recess 13a: First recess 13b: Second recess 14: Projection receiving recess 20: Gripping part 21a, 21b: Swiveling member 22: Biasing member 23: Receiving opening 30: Rotating knob 31: Operating part 32: Cam part 40: Main body 41: Pole clamp part 42: Arm part 42a: Arm body 42b: Leaf spring 42b1: Projection 50: Locking part 60: Biasing part 70: Anti-slip part 80: Side surface 100: Liquid transfer pump set 101: Liquid transfer pump 102: Main body 103: Door part 104: Hinge part 105: Tube attachment section 106: Handle section 107: Leg section 108: Mounting projection section 108a: Body section 108b: Neck section 108c: Head section 108c1: Tapered side section 150: Pump support 151: Pole section 160: Medical tube 210: Display section 220: Operation section 221: Up / down switch 222: Fast forward switch 223: Start switch 224: Stop switch 225: Power switch 226: Menu selection switch 230: Door lock lever 240: Operation indicator 261: Tube retainer section 262: Upstream retainer section 263: Downstream retainer section 264: Retainer projection 270: Bubble sensor 271: Upstream blockage sensor 272: Downstream blockage sensor 273: Clamp section 274: Release lever 275: Anti-free flow mechanism 280: Pump mechanism 281a-281e: Finger A: Vertical direction B: Left-right direction C: Front-back direction O, O1: Central axis

Claims

1. A pump mounting device comprising: a base body that can be attached to a liquid transfer pump; and a movable body that can be attached to a pump support capable of supporting the liquid transfer pump, and is attached to the base body so as to be movable relative to the base body when the base body is attached to the liquid transfer pump.

2. The pump mounting device according to claim 1, wherein when the position in which the vertical upper and lower surfaces of the liquid transfer pump coincide with the vertical upper and lower surfaces in the operating state of the liquid transfer pump is defined as the operating position of the liquid transfer pump, the movable body is mounted to the base body attached to the liquid transfer pump in the operating position so as to be movable between a plurality of different positions in a direction along a horizontal plane perpendicular to the vertical direction.

3. The pump mounting device according to claim 2, wherein the movable body is rotatably mounted to the base body, and the movable body is movable between the plurality of positions by rotating with respect to the base body which is attached to the liquid pump in the operating position.

4. The pump mounting device according to claim 3, wherein the movable body is movable between the plurality of positions by rotating around a central axis extending along the horizontal plane with respect to the base body attached to the liquid pump in the operating position.

5. The pump mounting device according to claim 3, wherein the movable body is movable between the plurality of positions by rotating around a central axis extending vertically with respect to the base body attached to the liquid pump in the operating position.

6. The pump mounting device according to any one of claims 2 to 5, wherein the liquid transfer pump has a front surface that constitutes one side surface in the operating position, and the base body attached to the liquid transfer pump in the operating position is movable relative to the base body between a first position located on one side in the left-right direction and a second position located on the other side in the left-right direction, in a front view taken from the front side of the liquid transfer pump.

7. The pump mounting device according to claim 6, wherein the movable body is provided with a locking portion that can be locked by the base body at the first position and the second position, respectively.

8. The pump mounting device according to claim 7, wherein the movable body comprises a main body that movably holds the locking portion, and a biasing portion that biases the locking portion toward the base body at the first position and the second position, respectively.

9. The pump mounting device according to claim 8, wherein the main body portion includes a support mounting portion that can be attached to the pump support, and at the first position and the second position, the biasing portion is located between the base body and the support mounting portion of the main body portion in the left-right direction in the front view, and biases the locking portion in the left-right direction from the side where the support mounting portion is located toward the side where the base body is located.

10. The pump mounting device according to claim 6, wherein the lower vertical end of the movable body at the first position and the second position is positioned substantially equal in the vertical direction to the lower vertical end of the base body.

11. A liquid transfer pump set comprising a pump mounting device according to any one of claims 1 to 5, and the liquid transfer pump.

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