Liquid delivery pump, adapter, and liquid delivery assembly

Abstract

A liquid feeding pump of the present application that feeds liquid in a liquid feeding tube is provided with: a fitting portion that can fit a first clip member that is fitted to the liquid feeding tube; an adapter that can be attached to and detached from the fitting portion; and a detection portion that detects fitting of the first clip member to the fitting portion. The adapter has a shape that cannot achieve fitting of the first clip member and can achieve fitting of a second clip member that has a different shape from the first clip member.

Description

Technical Field

[0001] This invention relates to a liquid delivery pump, an adapter, and a liquid delivery assembly. Background Technology

[0002] Infusion pumps for intravenous infusion are known to have structures such as those disclosed in Patent Document 1. The infusion pump described in Patent Document 1 is typically designed specifically for intravenous infusion and not for the infusion of nutrients, in order to prevent the misinstallation of nutrient tubing for delivering nutritional supplements and infusion tubing for delivering intravenous fluids.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2011-212112

[0004] The delivery pump described in Patent Document 1 can be used for the delivery of nutrients, which brings the advantage that it is not necessary to purchase a different delivery pump than the one used for delivering infusions in order to deliver nutrients. Summary of the Invention

[0005] The object of this invention is to provide a liquid delivery pump that prevents incorrect installation of pipes used for conveying different types of liquids and is capable of conveying different types of liquids. Furthermore, the object of this invention is to provide an adapter for enabling the liquid delivery pump to convey different types of liquids. Moreover, the object of this invention is to provide a liquid delivery assembly that can be fitted to the liquid delivery pump solely via the aforementioned adapter.

[0006] According to a first aspect of the present invention, a liquid delivery pump for conveying liquid within a delivery tube is provided. The liquid delivery pump includes: an assembly portion for assembling a first clamp member assembled to the delivery tube; an adapter detachably mounted to the assembly portion; and a detection portion for detecting the assembly of the first clamp member to the assembly portion. The adapter has a shape such that it prevents the detection portion from detecting the assembly of the first clamp member, but enables the detection portion to detect the assembly of a second clamp member having a different shape from the first clamp member.

[0007] According to a preferred embodiment of the liquid delivery pump of the present invention, the adapter divides an insertion space in a manner that makes it impossible to insert the first clamp member but allows the insertion of the second clamp member.

[0008] According to a preferred embodiment of the liquid delivery pump of the present invention, the adapter has: a cover member that divides the insertion space; and a detection auxiliary member that is pressed and moved or deformed by the second clamp member inserted into the insertion space, thereby being detected by the detection unit.

[0009] According to a preferred embodiment of the delivery pump of the present invention, the first clamp component is assembled to the delivery tube for delivering the infusion agent.

[0010] According to a preferred embodiment of the liquid delivery pump of the present invention, the second clamp component is assembled to the nutrient tube for delivering nutrients.

[0011] According to a preferred embodiment of the liquid delivery pump of the present invention, the pump includes: a main body portion that controls the delivery of the liquid; and a gate portion that is pivotally connected to the main body portion and clamps the liquid delivery tube together with the main body portion. When the gate portion is open relative to the main body portion, the liquid delivery tube to which the first clamp member is mounted is blocked when the first clamp member is mounted on the mounting portion.

[0012] According to a preferred embodiment of the liquid delivery pump of the present invention, after the first clamp member is assembled to the assembly part, the door is closed relative to the main body part, and when the liquid delivery pipe is clamped between the main body part and the door part, the blockage of the liquid delivery pipe is released.

[0013] According to a second aspect of the present invention, an adapter is provided for a liquid delivery pump, the liquid delivery pump comprising: an assembly portion capable of assembling a first clamp member assembled to a liquid delivery pipe; and a detection portion capable of detecting the assembly of the first clamp member to the assembly portion. The adapter has a shape such that it cannot detect the assembly of the first clamp member by the detection portion, but can detect the assembly of a second clamp member having a different shape from the first clamp member by the detection portion, and is configured to be detachably mounted relative to the assembly portion.

[0014] A preferred embodiment of the adapter of the present invention defines an insertion space formed in such a way that the first clip member cannot be inserted but the second clip member can be inserted.

[0015] A preferred embodiment of the liquid delivery pump of the present invention includes: a cover member that divides the insertion space; and a detection auxiliary member that is pressed and moved or deformed by the second clamp member inserted into the insertion space, thereby being detected by the detection unit.

[0016] According to a third aspect of the present invention, a liquid delivery assembly is provided for a liquid delivery pump. The liquid delivery assembly includes a liquid delivery tube and a clamp member mounted on the liquid delivery tube. The clamp member has a shape such that it cannot be assembled to the mounting portion of the liquid delivery pump, but can only be assembled to the liquid delivery pump via an adapter mounted on the mounting portion.

[0017] According to the present invention, a delivery pump can be provided that prevents incorrect installation of pipes used for conveying different types of liquids and is capable of conveying different types of liquids. Furthermore, according to the present invention, an adapter can be provided for enabling the delivery pump to convey different types of liquids. Moreover, according to the present invention, a delivery assembly that can only be fitted to the delivery pump via the aforementioned adapter can be provided. Attached Figure Description

[0018] Figure 1 A front view of the liquid delivery pump according to an embodiment of this application.

[0019] Figure 2A express Figure 1 A three-dimensional cross-sectional view of the pump at line AA' and its assembly. Figure 1 The first clamp component preceding the assembly of the liquid delivery pump shown.

[0020] Figure 2B Indicates from Figure 2A The state shown indicates that the assembly of the first clamp component relative to the liquid delivery pump is complete.

[0021] Figure 3 The adapter and the second clip component that can be assembled to the adapter are shown as embodiments of the present application.

[0022] Figure 4A Indicates that only equipped with Figure 3 The state of the adapter's cover component shown. Figure 1 A three-dimensional cross-sectional view of the pump at line AA' and the second clip assembly before the adapter.

[0023] Figure 4B Indicates that the assembly consists of components Figure 3 The adapter's cover component and the detection auxiliary component are shown, indicating their respective states. Figure 1 A three-dimensional cross-sectional view of the pump at line AA' and the second clip assembly before the adapter.

[0024] Figure 4C Indicates from Figure 4B The state shown indicates that the second clamp component has been assembled with the adapter mounted on the liquid delivery pump.

[0025] Figure 5A Indicates that the assembly consists of components Figure 3 The adapter's cover component and the detection auxiliary component are shown in their respective states. Figure 1 A three-dimensional cross-sectional view of the pump at line AA' and the first clamp component.

[0026] Figure 5B Indicates in Figure 5AThe first clip component cannot be assembled on the adapter in the state shown.

[0027] Figure 6 This is a top view of the assembly and testing mechanism of the liquid delivery pump according to an embodiment of this application.

[0028] Figure 7 Indicates that only equipped with Figure 3 The adapter's cover component is shown in its state. Figure 1 A three-dimensional cross-sectional view of the pump at line AA' and the second clamp component of the insertion space of the insertion cover component.

[0029] Figure 8A express Figure 2A One form of the first clip component shown.

[0030] Figure 8B express Figure 2A Another form of the first clip component shown. Detailed Implementation

[0031] Figure 1 Figure 2 shows a front view of the liquid delivery pump 100 according to an embodiment of this application. Figure 1 A three-dimensional cross-sectional view of the liquid delivery pump 100 at AA' and the first clamp component 40. Figure 3 Figure 4 shows the adapter 10 and the second clip member 50 according to an embodiment of this application. Figure 4 shows the state in which the adapter 10 is assembled. Figure 1 Figure 5 shows a three-dimensional cross-sectional view of the liquid delivery pump 100 at line AA' and the second clamp component 50. Figure 5 also shows the state with the adapter 10 assembled. Figure 1 A three-dimensional cross-sectional view of the liquid delivery pump 100 at line AA' and the first clamp component 40.

[0032] The liquid delivery pump 100 consists of a main body 120 and a door 110. The door 110 is mounted so as to be openable and closable relative to the main body 120. Figure 1 In the liquid delivery pump 100 shown, the door 110 is open relative to the main body 120. Therefore, Figure 1 The diagram shows the front of the main body 120 and the back of the door 110. Hereinafter, the state in which the door 110 is open relative to the main body 120 will sometimes be described simply as "open state". In addition, the state in which the door 110 is closed relative to the main body 120 will sometimes be described simply as "closed state".

[0033] The delivery pump 100 can be equipped with delivery pipes 55 and 46 capable of delivering infusion agents and nutrients of different types. The delivery pump 100 can press the delivery pipes 55 and 46 to deliver the liquid within them. Although details will be described later, in the delivery pump 100 of this embodiment, from the state where the door 110 is open and the delivery pipes 55 and 46 are positioned at a predetermined position on the main body 120, the door 110 is closed, thereby ending the delivery of the delivery pipes 55 and 46 to the delivery pump 100. Regarding the portion of the delivery pipes 55 and 46 provided in the delivery pump 100, on the upstream side of the flow path of the delivery pipes 55 and 46 ( Figure 2A , Figure 4A , Figure 4B , Figure 5A An infusion bag containing a prescribed medication or other liquid is connected to the upper side of the infusion tubes 55 and 46. Furthermore, regarding the portion of the infusion tubes 55 and 46 located in the infusion pump 100, downstream of the flow path of the infusion tubes 55 and 46 (… Figure 2A , Figure 4A , Figure 4B , Figure 5A The lower side of the infusion bag is connected to, for example, a clamping member and an indwelling catheter. The indwelling catheter is left in place while the patient's vein is punctured. The flow rate (infusion speed) of the fluid in the infusion tubing 55, 46 per unit time is controlled by using the infusion pump 100. Therefore, the amount of fluid delivered to the patient per unit time from the infusion bag can be controlled by the infusion pump 100.

[0034] like Figure 1 As shown, the main body 120 includes a bubble detection sensor unit 1, a pressing unit 2, a tube position regulating unit 4, a blocking sensor unit 5, and an assembly unit 7.

[0035] The bubble detection sensor unit 1 consists of an ultrasonic transmitter 8 and an ultrasonic receiver 9. The bubble detection sensor unit 1 detects the presence or absence of bubbles in the liquid delivery pipes 55 and 46 when the door 110 is closed. More specifically, the liquid delivery pipes 55 and 46 are disposed between the ultrasonic transmitter 8 and the ultrasonic receiver 9, and the ultrasonic transmitter 8 transmits a predetermined signal, such as an ultrasonic wave, towards the ultrasonic receiver 9. A strong received ultrasonic signal indicates that no bubble has been detected, while a weak received ultrasonic signal indicates that a bubble has been detected.

[0036] The pressing part 2 has a plurality of fingers 3. The plurality of fingers 3 are arranged from the upstream side of the flow path of the liquid delivery pipes 55 and 46 toward the downstream side of the flow path. The plurality of fingers 3 can be reciprocated in the direction opposite to the receiving part 104 of the gate part 110 described later by a drive unit. The plurality of fingers 3 are driven by the drive unit described above, thereby pressing the liquid delivery pipes 55 and 46 sequentially from the upstream side of the flow path toward the downstream side of the flow path, thus closing them. As a result, the liquid delivery pipes 55 and 46 can perform peristaltic movement. The pressing part 2 of this embodiment has 8 fingers 3, but the number of fingers is not limited to 8 in this embodiment, and may be less than 8 or more than 9. In addition, in the pressing part 2 of this embodiment, the fingers 3 form a contact body that contacts the liquid delivery pipes 55 and 46, but for example, it may also be the structure of a contact body used in a so-called "roller pump" that uses rollers that can revolve around a predetermined rotation center axis and rotate on their own axis to squeeze the liquid delivery pipes 55 and 46.

[0037] When the liquid delivery pipes 55 and 46 are assembled on the front of the main body 120, the pipe position specification section 4 specifies the position of the pipes in a direction orthogonal to the central axis of the liquid delivery pipes 55 and 46.

[0038] The occlusion sensor unit 5 consists of a permanent magnet and a sensor for simulating the movement of the permanent magnet. In the occlusion sensor unit 5, for example, the occlusion state of the liquid delivery pipes 55 and 46 is detected by detecting the movement of the permanent magnet, which moves in response to the change in internal pressure accompanying the occlusion state of the liquid delivery pipes 55 and 46.

[0039] like Figure 1 As shown, the main body 120 may also include a handle 6 for the user to hold when transporting the liquid pump 100.

[0040] like Figure 2A , Figure 2B As shown, the assembly part 7 is configured to assemble and install the first clamp member 40 of the infusion tube 46, which is used for the delivery of infusion agents. That is, the assembly part 7 has a shape suitable for the first clamp member 40. More specifically, the assembly part 7 is configured to detect the assembly of the first clamp member 40 by means of the detection part 62 described later. Figure 2B For ease of explanation, the liquid delivery tube 46 is omitted. Details will be provided later.

[0041] like Figure 4A , Figure 4B , Figure 4C , Figure 5A , Figure 5BAs shown, the adapter 10 can be installed in the assembly section 7. The adapter 10, installed in the assembly section 7, can be fitted with a second clamp member 50, which is attached to the nutrient tube of the delivery tube 55 used for delivering nutrients. More specifically, the adapter 10 is configured such that the assembly of the second clamp member 50 can be detected by the detection section 62 (described later) when installed in the assembly section 7. Furthermore, the adapter 10 is configured to allow the second clamp member 50 to be assembled to the delivery pump 100, but not the first clamp member 40. The adapter 10 has a shape that allows it to be installed in the assembly section 7 and is detachably mounted relative to the assembly section 7. Therefore, when the first clamp member 40 is assembled, the adapter 10 is removed from the assembly section 7, and when the second clamp member 50 is assembled, the adapter 10 is installed in the assembly section 7. As described later, in this embodiment, the adapter 10 consists of a cover member 20 and a detection auxiliary member 30. However, other forms of adapters may also be used.

[0042] like Figure 1 As shown, the door portion 110 includes a door frame 103. The door frame 103 is pivotally mounted to the frame 12 of the main body portion 120 via a hinge portion 101. Thus, the door portion 110 of this embodiment is configured to open and close freely relative to the main body portion 120.

[0043] A door sealing rubber 106 is provided on the back side of the door 110. The door sealing rubber 106 is formed of an elastomer and prevents the liquid medicine from entering the interior of the main body 120 when the door 110 is closed.

[0044] In addition, a position holding part 102 is provided on the rear side of the door 110. When the door 110 is closed relative to the main body 120, the position holding part 102 abuts against the liquid delivery pipes 55 and 46 to position the liquid delivery pipes 55 and 46.

[0045] Furthermore, a receiving portion 104 is provided on the rear side of the door portion 110. The receiving portion 104, together with the pressing portion 2, clamps the liquid delivery tubes 55 and 46. In addition, the receiving portion 104 and the pressing portion 2 are arranged opposite each other. The pressing portion 2 can press the liquid delivery tubes 55 and 46 clamped between it and the receiving portion 104 toward the receiving portion 104.

[0046] Next, the structure of the liquid delivery pump 100 for detecting the assembly of the first clamp member 40 and the second clamp member 50 will be described. For example... Figure 2A As shown, a first clamp member 40 is fitted onto the infusion tube 46 (hereinafter referred to as "infusion tube 46"), which serves as the infusion tube for conveying the infusion agent. Figure 2BAs shown, the first clamp member 40 is configured to be inserted into the insertion hole of the assembly part 7. A detection mechanism 60 is provided at the entry point from the assembly part 7 of the delivery pump 100 into the interior of the main body 120. In this embodiment, the detection mechanism 60 has a semi-cylindrical rotating part 61 and a detection part 62, but other types of detection mechanisms may also be used. The infusion tube 46 and the first clamp member 40 shown constitute a delivery assembly.

[0047] Reference Figure 2B If the first clamp member 40 is assembled to the assembly part 7, the protruding front end 41 of the first clamp member 40 collides with the radially shaped rotating part 61 of the detection mechanism 60. Upon collision, the semi-cylindrical rotating part 61 rotates about its central axis around the approximately circular center of its semi-circular base. As the rotating part 61 rotates, the position of the recess formed on the curved side of the rotating part 61 aligns with the position of the detection part 62. As a result, the detection part 62 of the detection mechanism 60 detects the first clamp member 40. Thus, the liquid delivery pump 100 is able to detect that the first clamp member 40 is assembled to the assembly part 7.

[0048] As mentioned above, Figure 3 The figure shows an adapter 10 that can be mounted on the assembly part 7 of the liquid delivery pump 100 and a second clip member 50 that can be mounted on the assembly part 7 via the adapter 10. In this embodiment, the adapter 10 is composed of a cover member 20 and a detection auxiliary member 30. However, the form of the adapter 10 is not limited to this embodiment.

[0049] The cover member 20 includes a first part 21, a second part 25, an upstream tube fixing part 23, and a downstream tube fixing part 22. For ease of explanation, when viewed from the front of the main body 120 with the cover member 20 installed in the assembly part 7, the first part 21 located on the left side of the insertion space 24 (described later) will be referred to as "left part 21," and the second part 25 located on the right side of the insertion space 24 will be referred to as "right part 25." The left part 21, right part 25, upstream tube fixing part 23, and downstream tube fixing part 22 divide the insertion space 24, allowing the second clamp member 50 to be inserted but preventing the first clamp member 40 from being inserted. The upstream tube fixing part 23 and the downstream tube fixing part 22 have recesses for fixing the feeding tube (hereinafter referred to as "feeding tube 55"), which is the liquid delivery tube 55 on which the second clamp member 50 is installed. In the cover member 20 of this embodiment, the recess of the upstream tube fixing portion 23 is aligned with the recess of the downstream tube fixing portion 22 in such a way that the nutrient tube 55 extends substantially vertically when it is installed in the assembly portion 7 of the liquid delivery pump 100. Furthermore, the cover member 20 can be fixed to the main body portion 120 by fixing the left side of the left portion 21 and the right side of the right portion 25 near the entrance of the insertion hole of the assembly portion 7.

[0050] The detection auxiliary component 30 has a front end portion 31, an elastic portion 32, and a main body portion 33. The front end portion 31 protrudes from the front end face of the main body portion 33. Furthermore, the elastic portion 32 is configured to be adjacent to the front end portion 31, extending from the front end face of the main body portion 33 in the same direction as the protrusion direction of the front end portion 31, and is capable of elastic deformation in that direction. The elastic portion 32 is, for example, a coil spring. This elastic portion 32 is mounted on the assembly portion 7 of the liquid delivery pump 100 (see reference 100) in such a way that it is sandwiched between the front end face of the main body portion 33 and the reaction force wall portion 63 of the main body portion 120 of the liquid delivery pump 100. Figure 4B The detection auxiliary member 30 enables the detection section 62 of the detection mechanism 60 to detect the second clamp member 50. More specifically, the adapter 10 is installed on the assembly section 7 in the order of the detection auxiliary member 30 and the cover member 20, and the second clamp member 50 is inserted into the insertion space 24 divided by the cover member 20. As a result, the main body 33 of the detection auxiliary member 30 is pressed by the second clamp member 50. As a result, the elastic part 32 is compressed and deformed between the main body 33 and the reaction force wall 63, and the front end 31 protruding from the main body 33 passes through the opening adjacent to the reaction force wall 63 and extending toward the detection section 62, and moves toward the detection section 62, colliding with the rotating part 61 of the detection mechanism 60, which is located deep in the insertion hole of the assembly section 7. The front end 31 collides with the rotating part 61, thereby rotating the rotating part 61, and the position of the recess formed on the curved side of the arc of the rotating part 61 coincides with the position of the detection section 62. Thus, the second clamp member 50 is detected by the detection unit 62. In this embodiment, the detection auxiliary member 30 moves by pressing the second clamp member 50, thereby realizing the detection of the second clamp member 50.

[0051] The second clamp member 50 has a rear end portion 51, a clamp body portion 52, and a hook portion 53. An opening 54 for the feeding tube 55 to pass through is provided in the clamp body portion 52. The hook portion 53 is configured to engage with the cover member 20 installed in the assembly portion 7.

[0052] Figure 4A The figure shows the liquid delivery pump 100 in the state where only the cover member 20 of the adapter 10 is assembled in the assembly section 7. Figure 1 A three-dimensional cross-sectional view at line AA' and the second clamp component 50 assembled on the nutrient tube 55 for conveying nutrient agents. Originally, the detection auxiliary component 30 was installed on the assembly section 7 before the cover component 20 was installed, but... Figure 4A For ease of explanation, the diagram shows only the cover member 20 installed. The second clamp member 50 is pre-installed on the nutrient tube 55 shown in the diagram, and together with the nutrient tube 55, they constitute the liquid delivery assembly.

[0053] Figure 4BThe image shows the liquid delivery pump 100 in the assembly section 7 with the cover member 20 of the adapter 10 and the detection auxiliary member 30 assembled together. Figure 1 A three-dimensional view of the cross-section at line AA'. (See figure) Figure 4B As shown, the elastic part 32 is positioned within the insertion hole of the assembly part 7, sandwiched between the main body part 33 and the reaction force wall part 63 of the main body part 120. Due to the elastic force of the elastic part 32, the detection auxiliary member 30 cannot move further inward. Therefore, unless the front end 31 is pressed so that the main body part 33 overcomes the elastic force of the elastic part 32 and approaches the rotating part 61, it will not reach the rotating part 61 of the detection mechanism 60, thus remaining in a state of non-contact with the rotating part 61.

[0054] Figure 4C The image shows the second clamp member 50 inserted into the insertion space 24 of the cover member 20, and the state of the second clamp member 50 pressing the detection auxiliary member 30. Furthermore, Figure 6 The image shows a top view of the assembly part 7 of the liquid delivery pump 100 and the detection mechanism 60. (See image for details.) Figure 4C , Figure 6 As shown, the detection auxiliary member 30 is detected by the detection unit 62 by being pressed by the second clamp member 50. Specifically, the main body 33 of the detection auxiliary member 30 is pressed by the clamp main body 52 of the second clamp member 50. As a result, the main body 33 overcomes the elastic force of the elastic part 32 and moves toward the reaction force wall 63. Therefore, the front end 31, which is disposed adjacent to the elastic part 32, moves toward the rotating part 61 of the detection mechanism 60 through the opening adjacent to the reaction force wall 63, pressing the rotating part 61. The rotating part 61 rotates due to the pressing of the front end 31, and the recess of the rotating part 61 moves toward the position of the detection unit 62. As a result, the detection unit 62 detects that the second clamp member 50 is assembled in the assembly part 7 via the adapter 10. In this way, the liquid delivery pump 100, which is equipped with the adapter 10, can detect the assembly of the second clamp member 50. Corresponding to the detection mechanism 60 identifying the second clamp member 50, the infusion pump 100 can perform infusion operation according to the user's request. Thus, in this embodiment, the detection auxiliary member 30 moves by pressing the second clamp member 50, thereby realizing the detection of the second clamp member 50. As a result, nutrient infusion can be performed using the infusion pump 100.

[0055] Figure 5A The diagram shows a liquid delivery pump 100 with the adapter 10 mounted on the assembly section 7, and the adapter 10 mounted on the cover member 20 and the detection auxiliary member 30. Figure 1 The diagram shows a cross-sectional perspective view at line AA' and the first clamp component 40 assembled on the infusion tube 46. The first clamp component 40 is pre-installed on the infusion tube 46 shown in the figure, and together with the infusion tube 46, they form an infusion delivery assembly.

[0056] Figure 5B The diagram shows the first clamp member 40 being assembled with both the cover member 20 and the detection auxiliary member 30 assembled on the assembly part 7 of the liquid delivery pump 100. The detection auxiliary member 30 does not contact the first clamp member 40 and is not pressed by it; therefore, it is not detected by the detection unit 62. Specifically, the insertion space 24 divided by the cover member 20 is divided in a way that the first clamp member 40 cannot be inserted. Therefore, the first clamp member 40 cannot be inserted into the insertion space 24. Therefore, the first clamp member 40 does not contact the detection auxiliary member 30 located deep within the insertion space 24, and cannot press the detection auxiliary member 30. Therefore, the detection auxiliary member 30 does not move against the elastic force of the elastic part 32 and does not move into the interior of the main body 120. Therefore, the rotating part 61 is not pressed by the front end 31. Therefore, the detection unit 62 of the detection mechanism 60 cannot detect that the first clamp member 40 is assembled on the liquid delivery pump 100. Thus, in this embodiment, the cover member 20 of the adapter 10 prevents the insertion of the first clip member 40, thereby preventing the first clip member 40 from being assembled into the assembly part 7.

[0057] As described above, the insertion space 24 of the cover member 20 is divided such that the second clamp member 50 can be inserted, but the first clamp member 40 cannot be inserted. Therefore, when the cover member 20 is assembled to the assembly part 7, the first clamp member 40 cannot be assembled to the assembly part 7. As a result, it is possible to prevent the infusion tube 46 from being mistakenly assembled when attempting to assemble the feeding tube 55 to the infusion pump 100.

[0058] Figure 7 This indicates that the assembly section 7 is in a state where only the cover component 20 of the adapter 10 is assembled. Figure 1 A three-dimensional cross-sectional view of the liquid delivery pump 100 at line AA'. Figure 7The diagram shows that no detection auxiliary member 30 is disposed in the insertion hole of the assembly part 7, and only the second clip member 50 is inserted into the insertion space 24 of the cover member 20. The depth of the insertion space 24 (the depth length from the entrance of the insertion hole of the assembly part 7 of the main body 120 into the interior of the main body 120) is longer than the length of the second clip member 50. In addition, since the front end of the second clip member 50 is approximately flat, it abuts against the reaction force wall 63, or cannot pass over the reaction force wall 63 to press the rotating part 61. Moreover, the opening 54 through which the nutrient tube 55 passes is provided near the center of the clip body 52 of the second clip member 50. Therefore, even if only the second clip member 50 is inserted into the insertion space 24, since the nutrient tube 55 passing through the opening 54 of the second clip member 50 abuts against the frame 12 of the main body 120, the second clip member 50 does not reach the rotating part 61 and cannot press the rotating part 61. Thus, although the adapter 10 of this embodiment is not a structure in which the second clip member 50 can be assembled solely by the cover member 20, the adapter 10 is not limited to such a structure consisting of two parts, and may also be a structure consisting of, for example, a single part. Figure 7 The description is based on the state where only the cover member 20 of the adapter 10 is assembled in the assembly section 7, but the same applies to the state where the cover member 20 is not assembled in the assembly section 7.

[0059] Figure 8 shows details of the first clamp member 40. The first clamp member 40 has a front end 41, a left portion 42, a right portion 43, a first opening / closing portion 44 connected to the left portion 42, and a second opening / closing portion 47 connected to the right portion 43. Here, "left and right" refers to the left and right sides when viewed from the front of the main body 120 with the first clamp member 40 assembled in the mounting portion 7, the same as the front end 31 of the detection auxiliary member 30. The first clamp member 40 is made of a deformable material. The left portion 42, the right portion 43, and the first opening / closing portion 44 divide an opening 45. When the first clamp member 40 is installed on the infusion tube 46, the infusion tube 46 passes through the opening 45. The left portion 42 can be displaced relative to the right portion 43 in a manner that changes the size of the opening 45. The first opening / closing portion 44 and the second opening / closing portion 47 can engage with each other. When not pressed from the outside, the left portion 42 is configured to be at a specified angle relative to the right portion 43.

[0060] Figure 8A This indicates that the left portion 42 and the right portion 43 are pressed together in the direction shown by the arrow. As a result, the first opening / closing part 44 connected to the left portion 42 and the second opening / closing part 47 connected to the right portion 43 also approach and engage. As a result, the opening 45 narrows, and the infusion tube 46 inside the opening 45 is blocked.

[0061] Figure 8BThe image shows the first opening / closing part 44 being pressed in the direction of the arrow, thereby disengaging from the second opening / closing part 47. As a result, the left portion 42 connected to the first opening / closing part 44 is displaced from the right portion 43 connected to the second opening / closing part 47. Consequently, the opening 45 expands, and the obstruction of the infusion tube 46 within the opening 45 is released.

[0062] As described above, the assembly part 7 of the liquid delivery pump 100 is configured to assemble the first clamp member 40. Assembly of the first clamp member 40 is completed by pressing the first clamp member 40 into the insertion hole of the assembly part 7 of the main body 120, and by detecting the front end 41 of the first clamp member 40 by the detection part 62. The first clamp member 40 is assembled to the assembly part 7 of the main body 120 with the door 110 open relative to the main body 120. At this time, the first clamp member 40... Figure 8A It is assembled to the assembly part 7 in the state shown, and maintains this state. Specifically, from both sides of the assembly part 7... Figure 8A The arrow is subjected to force. As a result, the left portion 42 and the right portion 43 of the first clamp member 40 are subjected to a force that brings them closer together. The left portion 42 is connected to the first opening / closing part 44, and the right portion 43 is connected to the second opening / closing part 47. Therefore, the left portion 42 and the right portion 43 are subjected to a force that brings them closer together, so the first opening / closing part 44 and the second opening / closing part 47 also bring themselves closer together. As a result, the first opening / closing part 44 and the second opening / closing part 47 engage. Therefore, the infusion tube 46 in the opening 45 is blocked. This prevents unwanted flow of the infusion caused by forgetting to close the clamp.

[0063] After the first clip member 40 is assembled into the assembly part 7, the first clip member 40 is clamped between the main body part 120 and the door part 110. Therefore, the first clip member 40 is pulled towards the door part 110. Figure 8B The arrow is subjected to force in the direction of the arrow. As a result, the engagement between the first opening / closing part 44 and the second opening / closing part 47 is released, and the left part 42 is displaced away from the right part 43. As a result, the blockage of the infusion tube 46 is released.

[0064] Explanation of reference numerals in the attached figures

[0065] 1... Bubble detection sensor; 2... Pressing part; 3... Finger; 4... Tube position specification part; 5... Closure sensor part; 6... Handle; 7... Assembly part; 8... Ultrasonic transmitting part; 9... Ultrasonic receiving part; 10... Adapter; 12... Frame; 20... Cover member; 21... Part 1 (left part); 22... Downstream tube fixing part; 23... Upstream tube fixing part; 24... Insertion space; 25... Part 2 (right part); 30... Detection auxiliary member; 31... Front end part; 32... Elastic part; 33... Main body of the member; 40... First clamp member; 41... Front end part ; 42...Left part; 43...Right part; 44...First opening / closing part; 45...Opening; 46...Infusion tube (infusion tube); 47...Second opening / closing part; 50...Second clamp component; 51...Rear end; 52...Clamp body; 53...Hook; 54...Opening; 55...Infusion tube (feeding tube); 60...Detection mechanism; 61...Rotating part; 62...Detection part; 63...Reaction wall part; 101...Hinge part; 102...Position holding part; 103...Door frame; 104...Receiving part; 106...Door sealing rubber; 110...Door part; 120...Main body.

Claims

1. A liquid delivery pump, characterized in that, a liquid delivery pump for conveying liquid within a delivery pipe, wherein... The liquid delivery pump includes: An assembly section is provided for assembling the first clamp component that is assembled onto the liquid delivery pipe; An adapter that can be detachably mounted to the assembly; and The inspection unit inspects the assembly of the first clamp component into the assembly unit. The adapter has the following shape: when installed in the assembly part, by preventing the first clip member from being assembled, the detection part can detect the assembly of the first clip member, thereby preventing the detection part from detecting the assembly of the first clip member.

2. The liquid delivery pump according to claim 1, characterized in that, The adapter divides the space into an insertion space that allows the insertion of the first clip member to be impossible but allows the insertion of the second clip member to be possible.

3. The liquid delivery pump according to claim 2, characterized in that, The adapter has: a cover member that divides the insertion space; and a detection auxiliary member that is pressed and moved or deformed by the second clip member inserted into the insertion space, thereby being detected by the detection unit.

4. The liquid delivery pump according to any one of claims 1 to 3, characterized in that, The first clamp component is assembled into the infusion tube for conveying the infusion agent.

5. The liquid delivery pump according to any one of claims 1 to 3, characterized in that, The second clamp component is assembled into the nutrient tube that delivers the nutrient solution.

6. The liquid delivery pump according to any one of claims 1 to 3, characterized in that, have: The main body controls the delivery of the liquid; and a door portion pivotally connected to the main body and clamping the liquid delivery tube together with the main body. When the door is open relative to the main body, the liquid delivery pipe with the first clamp member attached to it is blocked when the first clamp member is assembled to the assembly part.

7. The liquid delivery pump according to claim 6, characterized in that, After the first clamp component is assembled into the assembly part, the door is closed relative to the main body, and when the liquid delivery tube is clamped between the main body and the door, the blockage of the liquid delivery tube is released.

8. An adapter for a liquid delivery pump, the liquid delivery pump comprising: an assembly portion for assembling the first clamp member which is assembled to a liquid delivery tube; and a detection portion for detecting the assembly of the first clamp member to the assembly portion. The adapter is characterized in that, It is configured to be detachably mounted relative to the assembly part. It has the following shape: when installed in the assembly part, by preventing the first clip member from being assembled, the detection part can detect the assembly of the first clip member, thereby enabling the detection part to detect the assembly of the second clip member, which has a different shape from the first clip member.

9. The adapter according to claim 8, characterized in that, An insertion space is defined such that the insertion of the first clip member cannot be achieved, but the insertion of the second clip member can be achieved.

10. The adapter according to claim 9, characterized in that, It has: a cover member that divides the insertion space; and a detection auxiliary member that is pressed and moved or deformed by the second clamp member inserted into the insertion space, thereby being detected by the detection unit.

11. A liquid delivery assembly, characterized in that, Include: The adapter according to any one of claims 8 to 10; The second clamp component; and The liquid delivery tube is equipped with the second clamp component.

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