JP4949700B2 - Infusion tube loading aid and infusion device - Google Patents

Description

The present invention relates to an infusion tube loading aid and an infusion device , and more particularly to an infusion technique with excellent safety.

  In the medical field, a peristaltic infusion pump or a roller infusion pump that performs transfusion by pressing the outer peripheral surface of an infusion tube in the longitudinal direction to give a peristaltic motion is used.

  There has also been proposed an infusion pump cassette for reliably switching a drug solution between a free flow state and an anti-free flow state when infusion is started after the infusion tube is loaded into the infusion device.

According to this proposal, the infusion tube is held by the holding unit of the cassette, and the anti-free flow state is made by closing the intermediate part of the infusion tube and the free part is made by opening the intermediate part. The urging member and a closing member interlocking with the urging member are provided. After this cassette is loaded into the infusion drive section of the infusion pump, the urging member is pulled out to the front side so that the occlusion by the occlusion member is released and the free flow state is reached. Is possible. Further, when the urging member is moved to the cassette side, the anti-free flow state can be maintained by the closing operation by the closing member. (Patent Document 1)
On the other hand, the present applicant has proposed an infusion system. According to this infusion system, infusion of a plurality of types of medicinal liquids to the same patient is enabled using a plurality of peristaltic infusion pumps and syringe-type infusion pumps.

According to this infusion system, an infusion setting means for performing various settings for infusion, a display means for performing display relating to infusion including various setting values set from the infusion setting means, and a patient who inputs infusion data of a patient Control means for controlling the infusion drive unit of the infusion device connected to the data input device, the infusion setting means, the display means, and the patient data input device is provided. In addition, a power supply means including a rechargeable battery and a commercial power supply, a pedestal for fixing up to eight infusion devices at the mounting position, and an infusion bag connected to the upstream of the infusion tube and storing a chemical solution A casing having an infusion pole for hanging is provided, and a caster is provided to make the casing movable.
JP 2004-141418 A

  However, according to the proposed infusion pump cassette, after loading the infusion pump in the infusion drive unit, the infusion tube is unblocked unless the biasing member is pulled out to the near side. The infusion cannot be started. This is troublesome. Also, if the urging member is moved to the cassette side from the state where the puncture needle is stuck in the patient and it is forcibly removed from the infusion drive unit, it is in a free flow state, which may cause an unexpected infusion accident. It is.

  On the other hand, according to the above-mentioned infusion system, for example, an ideal system that can simultaneously administer different types of drug solutions to a patient requiring intensive care is provided. However, since a liquid medicine is fed using an infusion tube that is always in a free flow state, there is a demand for further ensuring safety for preventing infusion accidents.

  In addition, when the infusion tube is loaded into the infusion drive unit of the infusion pump, the infusion tube is in a free flow state. Significant remodeling or complicated structure.

Accordingly, the present invention has been made in view of the above circumstances, and can be maintained in a free flow state when loaded into an infusion drive unit of an infusion pump, and is automatically anti-static when taken out from the infusion drive unit. An object of the present invention is to provide an infusion tube loading aid and an infusion device that can be brought into a free flow state and are extremely safe by adopting a simple configuration.

In order to solve the above-described problems, according to the present invention, the liquid medicine is loaded into an infusion device that pushes the outer peripheral surface of the infusion tube in the longitudinal direction to feed the liquid medicine, and the liquid medicine is in a free flow state and an anti-free state. An infusion tube loading aid that maintains a flow state, wherein the infusion drive unit of the infusion device is provided between a door member that can be opened and closed between a locking position and an open position, and the door member. A driving means for holding the infusion tube and feeding the liquid; and a locking means for holding the door member at the locking position. The infusion tube loading aid includes the door member and the driving means. A base portion having a holding portion for holding a midway portion of the infusion tube, a closed position for bringing the infusion tube into the anti-free flow state, and the infusion tube with the free tube. A closing member provided on the base so as to be rotatable between a standby position to be in a state of being in a state, and the base is mounted on the infusion drive unit, and the door member is brought into the locking position, and then the door If member is opened to the open position, the by engagement is released, and a biasing member that moves urging the closure member to the anti-flow state, the urging member has one end the The base part is inserted into the first groove part, the winding part is inserted through a shaft body for pivotally supporting the closing member on the base part, and the other end is inserted into the second groove part of the base part. The torsion spring constantly biased in the opening direction so that the one end is moved from the first groove portion to the back surface portion of the closing member when the engagement state is released and the engagement state is maintained. It is characterized by including .

  The first groove portion is formed on an inclined surface on the back surface side of the base portion, and the surface side of the closing member is pressed by a shape portion including a convex portion formed on the door member or the locking means. The one end is disengaged from the first groove portion by abutting against the inner inclined surface of the closing member, and slides on the inclined surface and is moved to the back surface portion of the closing member. It is characterized by energizing to a flow state.

  The infusion device includes a peristaltic infusion pump and a roller infusion device in which the door member is provided to be openable and closable in the front-rear direction and the left-right direction.

  Further, the base is further characterized in that an IC tag storing information related to the drug solution, a bubble detection unit for detecting presence or absence of bubbles in the infusion tube, and a blockage detection unit for detecting blockage are further arranged.

According to the present invention, a drastic change of the infusion drive unit can be eliminated, and the infusion tube can be sterilized by placing the infusion tube in a free flow state before use, and the base portion of the infusion drive unit can be The infusion tube loading aid is extremely safe as a result of the infusion tube being surely placed in the anti-free flow state by automatically moving the closing member to the closing position when loading and removing the base from the infusion drive unit. And an infusion device can be provided.

  In the description to be described later, the peristaltic finger type peristaltic infusion device proposed by the present applicant in Japanese Patent Application Laid-Open No. 09-151856, the infusion tube is completely crushed only on the upstream side and the downstream side with each finger, Although it is described on the premise of a device that delivers liquid with high accuracy by eliminating the influence of the wall thickness of the infusion tube by not completely crushing the middle part, it is not limited to this, and the peristaltic motion of the infusion tube is performed by completely crushing Needless to say, the present invention can be appropriately applied to an infusion device configured as described above or another type of infusion device, for example, a roller-type infusion device including a rotating roller.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is an external perspective view of the infusion system 10. In this figure, there is provided a casing 11 provided with a table 14 for mounting a maximum of eight infusion devices 1 shown by broken lines in the figure. A base 20 made of aluminum or the like having a free caster 21 fixed at four corners is fixed below the casing 11. Further, a handle 22 is fixed to the left and right of the table 14 as shown in the figure, and the entire infusion system 10 can be freely moved on the floor surface in the intensive care room, for example, by grasping the handle 22. Has been.

  From the back surface of the housing 11, support poles 15 of an infusion pole 17 for suspending an infusion bag storing a chemical solution are fixed at two places on the left and right as shown. The support pole 15 is made of a hollow cylindrical iron pipe or the like, and an infusion pole 17 is inserted into the support pole 15 so that it can be fixed at a desired height position by the fixture 16.

  Further, four hook portions 17a are formed from the upper end of the infusion pole 17 as shown in the figure. Each of the infusion poles 17 and 17 is configured such that the height thereof can be individually adjusted with respect to the support poles 15 and 15.

  On the other hand, in the middle of the left support pole 15, the integration device 18 is fixed using a fixing tool 23. The fixture 23 is provided with a support mechanism (not shown) for holding the integrated device 18 at an arbitrary position in the vertical and horizontal directions, so that the display surface of the integrated device 18 can be easily touched with a fingertip. ing.

  Then, by touching the display surface of the integrated device 18 with a fingertip, the infusion speed, the estimated flow rate, the integrated amount, etc. of the individual infusion device 1 are set, and an alarm display for notifying infusion abnormality, an infusion tube The number of drops set at the time of connection, a flow rate abnormality informing the occurrence of a flow rate abnormality when an infusion probe is used, a blockage abnormality informing that a normal infusion cannot be performed when an infusion tube occlusion abnormality is detected, and an infusion device 1 will be described later When the door member is not completely closed with respect to the main body, the door opening indication is displayed and notified by the door switch, and the air bubble is notified when air bubbles of a predetermined length (5 mm) or more are mixed in the infusion tube. Abnormality, a battery abnormality display to notify when the voltage of the built-in battery drops is performed for each infusion device 1.

  As the integrated device 18, a liquid crystal device can be used, and a patient data input device 19 is provided on the ceiling as shown in the figure, and a memory card M storing a patient's chart is inserted into the slot. This makes it possible to manage infusion data and history management of patients.

  Inside the housing 11, a control device 12 shown by a broken line for controlling the infusion infusion drive unit of the infusion device 1 and a power supply device 13 including a rechargeable battery and a commercial power supply device are built in. By making the center of gravity low, it can be used in a stable state.

  Next, FIG. 2 is a block diagram of the infusion system 10 of FIG. In this figure, if the components or parts already described in FIG. 1 are denoted by the same reference numerals and description thereof is omitted, the table 14 for fixing up to eight infusion devices 1 as described above is not shown. These eight connectors are built in, and electrical connection to the connectors provided on the bottom surface of each infusion device 1 is possible. Each connector is connected to the control device 12 so that the connection state of each infusion device 1 can be detected.

  Further, the power supply device 13 is connected to a charger (not shown) so that power can be supplied to the entire infusion system. Further, when each infusion device 1 does not include a built-in battery, power is supplied from the power supply device 13 through the connector.

  The integrated device 18 and the personal data input device 19 are further connected to the control device 12, and the infusion control is performed by executing a program stored in advance in the storage device 12a. Network) It is constructed so as to enable management of all infusion systems in the hospital via the device 9.

  FIG. 3 is an external perspective view of the infusion device 1 shown with the infusion tube loading aid 5. 4A is an external perspective view illustrating a state in which the door member 26 of the infusion device 1 illustrated in FIG. 3 is opened and the infusion tube loading assisting tool 5 is set, and FIG. It is the external appearance perspective view which illustrated a mode that it closed to the latching position.

  3 and 4, only two units of the infusion device 1 are separated and fixed on the table 14, but the maximum of eight units are fixed as described above. In some cases, a flat main body 25 that can be fixed without a gap is provided.

  A large handle 31 is formed in front of the main body 25, and a locking mechanism (not shown) is released by a pressing operation of a lock member 32 provided above the handle 31, and the infusion device 1 is removed from the table 14. To be able to. Further, an indicator 33 is provided above the lock member 32 to display the infusion state by blinking the built-in red and green light emitting LEDs and to notify the occurrence of an alarm.

  A door member 26 is provided on the main body 25 so as to be openable and closable in the direction of the arrow D2 as shown in the figure. Therefore, a shaft support portion 25a is provided on the main body 25, and the door member 26 is supported in the front-rear direction by a shaft body 27 that is inserted through the shaft support portion 25a.

  In addition, the door member 26 is formed with a flange formed so as to surround the peripheral edge as shown in the drawing (see FIG. 4A), and protects a pressing plate 37 and the like which will be described later, and also has an opening flange. 26k is formed near the shaft support. A locked member 30 integrally formed with a pair of left and right claw portions 30 a, 30 a is pivotally supported in front of the door member 26, and each claw portion of the locking member 30 is paired with a pair of engaged members on the main body 25. An infusion operation described later is performed by maintaining the state of being locked to the stop member 29.

  On the other hand, a shape portion 25b formed so as to protrude upward is formed on the main body 25. The infusion tube loading aid 5 is set in the shape portion 25b in the direction of the arrow D1, and then the above-mentioned shape portion 25b. Thus, the door member 26 is configured to be closed. In addition, the infusion tube 2 is connected to an infusion bag 3 in which a predetermined amount of a predetermined chemical solution is stored while being hung on the hook portion 17a of the infusion pole 17 of FIG.

  Further, an infusion tube loading assisting tool 5 is provided in the downstream intermediate portion of the infusion tube 2, and the infusion tube 2 is held between the main bodies 50 and 51 constituting the assisting tool 5, and a closing member. By the blocking action 55, the chemical solution free flow state is automatically changed to the anti-free flow state. The roller clamp 6 and the puncture needle 4 are connected downstream of the infusion tube 2, and the infusion set thus connected is set in the region surrounded by the shape portion 25b as described above, and the door member 26 is attached. By closing, the infusion tube 2 is sandwiched between the plurality of fingers 28 and the pressing plate 37 so that the infusion preparation is completed. In addition, since it can take out back as shown in the figure by preventing the mechanical interference with the infusion tube 2 by providing the opening flange 26k, a large number of infusion devices 1 can be arranged adjacent to each other. .

  FIG. 5 is a cross-sectional view taken along line XX in FIG. In this figure, the same reference numerals are given to the components or components already described, and the description thereof is omitted. A compression coil spring 38 (biasing means) is provided on the door member 26 that can be opened and closed with respect to the main body 25. A stud inserted and held is provided, and a pressing member 37 is movably held with respect to the stud.

  Further, the claw portion 30a of the locking member 30 enters the shaft portion 29a of the locked member 29 as shown in the figure so that the door member 26 can be maintained in a locked state with respect to the main body, and the shaft The locking state is released by rotating the body 40 about the clockwise direction. At this time, the shape portion formed on the locking member comes into contact with the closing member so that the anti-free state described later can be achieved.

  The operating principle of the infusion drive unit is to press the attached infusion tube 2 with the finger 28n and continuously infuse at a set flow rate per time. The information is stored in the microcomputer (CPU). A motor rotation signal is generated, the motor 36 is rotated by this rotation signal, the camshaft 35 is driven, and the flow rate of the infusion is obtained.

  Further, the first finger, the second finger, the third finger, the fourth finger, and the fifth finger of the finger 28n are reciprocated in the vertical direction on the paper surface from the upstream side. The shape of the first finger and the fourth finger is different from the other second finger, third finger, and fifth finger, and the width dimension of the first finger and the fourth finger is set larger than the width dimension of the other fingers. . Moreover, the convex part is formed in the pressing surface of a 1st finger and a 4th finger. As described above, the peristallic finger method proposed by the present applicant in Japanese Patent Application Laid-Open No. 09-151856 is made ideal by not using the same shape as described above.

  That is, the infusion tube 2 is completely closed only on the upstream side and the downstream side by the convex portions formed on the pressing surfaces of the first finger and the fourth finger, and the intermediate part is completely closed by the other second and third fingers. By not crushing, the liquid feeding with high accuracy is possible without the influence of the wall thickness of the infusion tube 2. The first finger and the fourth finger are in a state where the infusion tube 2 expands to the left and right when the infusion tube 2 is completely closed, so that the width dimension of the first finger and the fourth finger is larger than the width dimension of the other fingers. Yes. The fifth finger corrects pulsation.

  In the case of a normal peristaltic motion system, peristaltic motion of the infusion tube can be performed by completely crushing the infusion tube with all the fingers 28n being the same as the second finger. The peristaltic movement of each finger 28n described above is transmitted to the infusion tube 2 sandwiched between the pressing plates 37, whereby infusion in the direction of the arrow is performed.

  The pressing plate 37 forms a pressure receiving surface by the fingers 28n, but prevents the infusion tube 2 from being damaged when some overload occurs. In addition, the first finger and the fourth finger completely crush the infusion tube 2, so that a second receiving plate member (not shown) is provided on the pressing plate 37 so as to face these fingers. 6 (a) is a front view of the infusion tube loading aid 5 in which the closing member 55 is in a free flow state, and FIG. 6 (b) is a right side view in which a part of FIG. 6 (a) is broken. FIG.

  7A is a front view of the infusion tube loading aid 5 in which the blocking member 55 is in an anti-free flow state, and FIG. 7B is a partially broken view of FIG. 7A. It is a right view. 8A is an external perspective view of the infusion tube loading aid 5 in which the closing member 55 is in the anti-free flow state, and FIG. 8B is an infusion tube in which the closing member 55 is in the free flow state. It is the external appearance perspective view which fractured | ruptured and illustrated one part of the loading assistance tool.

  6 to 8, common components or parts are denoted by the same reference numerals. In each of these drawings, the infusion tube loading assisting tool 5 includes resin-made bases 50 and 51 having a thickness dimension to be loaded between the door member 26 and the infusion driving unit and being injection-molded. ing. A holding portion is provided between the base portions 50 and 51 for appropriately holding the intermediate portion of the infusion tube 2.

  In addition, in the base portions 50 and 51, extension portions 50 d and 51 d that protrude from the above-described spear opening portion 26 k to the outside, an opening portion 50 c that fixes the bubble sensor 52, a finger 28, and a pressing plate 37 infiltrate in order from the top. Thus, the openings 50a and 51a (not shown) for giving a peristaltic motion to the infusion tube 2, the hole 50b (51b is not shown) into which the blocking sensor enters, and the mounting portions 50f and 51f are integrally molded with resin.

  As shown in FIG. 7, the infusion tube 2 is set on the bases 50 and 51 prepared as described above in part by broken lines. Moreover, the IC tag 49 may be laid above the bent portion of the infusion tube 2 so that the IC tag 49 can be detected before the auxiliary tool 5 is loaded, so that information relating to the infusion can be read and written. .

  A closing member 55 prepared by resin molding or metal processing is provided so as to be rotatable around a shaft body 56 inserted through a shaft support portion extending from the attachment portion 50f. The closing member 55 changes the infusion tube 2 from the free flow state (shown in FIG. 6) to the anti-free flow state (shown in FIG. 7). That is, the closing member 55 is rotatably provided on the base between a standby position where the infusion tube 2 is in a free flow state and a closed position where the infusion tube 2 is in an anti-free flow state.

  In addition, when the door member 26 is opened to the open position after the base portions 50 and 51 are mounted between the door member and the infusion drive unit and the door member 26 is set to the locking position, the closing member 55 is closed. An engagement state with respect to the base portion of 55 is released, and a torsion spring 70 that is an urging member for moving the closing member 55 to the anti-flow state is provided around the shaft body 56.

  FIG. 9 is a three-dimensional exploded view of the main part of the infusion tube loading aid 5 shown in FIGS. In this figure, the same reference numerals are given to the components or parts that have already been described, and a description thereof is omitted. In order to fix the base portions 50 and 51, a plurality of holes are respectively formed as shown in the figure. The bolt 60 and the nut 61 are used for assembly.

  Further, an extending portion 50y is formed integrally with the mounting portion 50f of the base portion 50, in which a shaft support hole portion 50k serving as a shaft support portion of the metal shaft body 56 is formed symmetrically. Further, a rectangular opening 50x is formed between the extended portions 50y so that the closed end 55k of the closing member 55 enters the opening 50x and can stand by on the opening 50x. ing.

  The closing member 55 is prepared so that a front surface portion 55a, a back surface portion 55b (shown by a broken line), and a shaft support hole portion 55c are integrally formed on the left and right side surfaces in addition to the closed end portion 55k. As shown in the figure, the closing member 55 is rotatably held between the shaft support hole portions 50k by the shaft body 56 after a torsion spring 70, which is a torsion coil spring, is housed therein, and is held in the groove portion of the shaft body 56. The ring 62 is assembled by fitting.

  On the other hand, the attachment portion 51f of the base portion 51 has the same outer shape and dimensions as the attachment portion 50f, and a semicircular holding portion 51g that holds the outer peripheral surface of the infusion tube 2 is formed together with the holding portion of the base portion 50. The infusion tube 2 is configured to be held so as to be exposed from the opening 50x.

  Here, instead of the infusion tube loading assisting tool 5 configured as described above, it is separated from the parts 50t and 51t indicated by the broken lines in the figure and is fixed with four sets of bolts and nuts only as a lower configuration, You may comprise so that the remaining part of the infusion tube 2 may be clamped between the press plate and finger of a door member, and in this case, there exists an advantage that the quantity discarded after use decreases.

  FIG. 10A is a cross-sectional view taken along the line X-X in FIG. 8B, and is an operation explanatory diagram illustrating the relative positional relationship of the closing member 55 with respect to the bases 50 and 51 together with the schematic diagram of the torsion spring 70. FIG. 8B is a cross-sectional view taken along line X-X in FIG. 8B, and the door member 26 is locked at the locking position with respect to the relative positions of the closing member 55 with respect to the bases 50 and 51. It is operation | movement explanatory drawing which illustrated the state with the schematic diagram of the torsion spring 70, (c) is YY arrow directional cross-sectional view of Fig.8 (a), Comprising: Relative positional relationship with respect to the bases 50 and 51 of the closure member 55 FIG. 6 is an operation explanatory view illustrating a state where the door member 26 is unlocked and opened together with a schematic diagram of the torsion spring 70.

  In this drawing, the same reference numerals are given to the components or parts already described, and the description thereof is omitted. In FIG. 10A, the torsion spring 70 has a winding portion whose rotation shaft is based on the closing member 55. The shaft 56 for supporting is inserted.

  Further, one end 71 is infiltrated into the first groove portion 72 of the base portion, and the other end 73 is infiltrated into the second groove portion 74 of the base portion to maintain the illustrated engagement state.

  Since this state is a free flow state, the sterilization process in the infusion tube 2 performed at the time of factory shipment can be performed.

  Next, in FIG. 10B, when the door member 26 is closed and the locking member 30 is locked, the shape portion 30 k including the convex portion presses the surface 55 a of the closing member 55, thereby The one end 71 comes into contact with the inclined surface 55y (see FIG. 10C), and the one end 71 is detached from the first groove portion 72 and moved onto the back surface 55b of the closing member 55.

  Next, when the locking of the locking member 30 is released and the door member 26 is moved upward, the action of the torsion spring 70 constantly biased in the opening direction as shown in FIG. The closed end 55k is in a state of closing the infusion tube 2.

  That is, when the front surface 55a side of the closing member 55 is pressed, the one end 71 of the torsion spring 70 comes off from the first groove portion 72, slides on the inclined surface 55y, and is moved onto the back surface 55b of the closing member 55. The closing member 55 is urged to the antiflow state.

  After that, even if the closing member 55 is pressed with a fingertip, the one end 71 of the torsion spring 70 cannot be put into the first groove portion 72, so that the original state shown in FIG. Therefore, once used, safety is ensured because it cannot be reused.

  Here, when the infusion tube 2 was molded from a soft transparent resin having a diameter of 4 mm and a thickness of about 0.4 mm, the occlusion force could be maintained at about 650 gf to maintain a sufficient occlusion state.

  Next, FIG. 11A is an external perspective view illustrating a state in which the locking member 30 provided on the door member 26 is moved toward the locked member 29, and FIG. FIG. 4C is an external perspective view illustrating a state immediately before being locked with respect to the locked member 29, and FIG. 5C is a convex portion that is a shape portion while the locking member 30 is locked with respect to the locked member 29. FIG. 3D is an external perspective view illustrating a state in which 30k presses the surface 55a of the closing member 55, and FIG. 4D is operated so that the locking member 30 is released from the locked member 29, and the convex portion 30k is closed. FIG. 6 is an external perspective view illustrating a state in which the blocking member 55 is in an anti-free flow state by moving away from the surface 55a of the member 55.

  In this figure, the same reference numerals are given to the components or parts that have already been described, and the description is omitted. In FIG. 11A, the shaft member 40 is provided so as to be rotatable with respect to the door member 26. The stop member 30 is formed with a downwardly shaped portion 30k.

  At this time, the locking member 30 is stopped at the illustrated position by a torsion spring (not shown) provided around the shaft body 40.

  Thereafter, in FIG. 11B, the pair of claw portions 30 a of the locking member 30 are locked to the locked member 29.

  Then, in FIG.11 (c), it will be in the state by which the door member 26 is fixed with respect to a main body by being latched with respect to the to-be-latched member 29 by the latching member 30 being pressed to the arrow direction. So do the infusion. At this time, the convex portion 30k presses the surface 55a of the closing member 55.

  Thereafter, when the infusion is finished, in FIG. 11D, the locking member 30 is operated so as to be unlocked from the locked member 29 for removal, and the convex portion 30k becomes the surface 55a of the closing member 55. Since the closing member 55 is automatically brought into the anti-free flow state by the action of the torsion spring 70 by moving away from the door, the door member is opened to the position shown in FIG. Take out.

  Although the example of the peristaltic infusion pump in which the door member 26 is provided to be openable and closable in the front-rear direction has been described according to the infusion apparatus 1 described above, the present invention is not limited to this, and the door member may be provided to be openable and closable in the left-right direction. In addition, an IC tag is provided at an appropriate position of the infusion tube loading aid 5 and information stored in the IC tag includes various characteristics of the infusion tube, a threshold value of the infusion tube blockage, patient data (drug name, infusion flow rate). By storing the upper and lower limit values, the upper limit value of the injection rate, etc.) and reading the data with the IC tag reader provided in the apparatus 1, medical errors can be prevented in advance.

  FIG. 12 is an external perspective view of an infusion device 1 according to another embodiment. In this figure, the shape of the infusion tube loading aid 5 is formed so as to hold the infusion tube 2 linearly as shown.

  Further, the door member 126 is provided so as to be opened and closed left and right by a hinge 127 on the front surface of the infusion device 1, and a convex portion 126 k that is a shape portion is integrally formed in the door member 126.

  The infusion tube 2 may be held between the finger 28 and the pressing plate provided on the door member 126 to perform liquid feeding by the device configuration configured as described above.

  At this time, an auxiliary tool that is separated from the parts 50t and 51t described in FIG.

  Finally, FIG. 13 is an operation principle diagram of a roller-type infusion device according to another embodiment. In this figure, the same reference numerals are given to the components or parts already described, and the description is omitted. As shown in the figure, the infusion driving unit 128 is a roller type, while the infusion tube is provided downstream of the infusion tube 2. The loading assisting tool 5 is provided, and the infusion tube 2 is sandwiched between the lid member 226 and infusion is performed. After the infusion, the lid member 226 is opened around the shaft body 227.

  Needless to say, even if there is a design change or the like without departing from the gist of the present invention, it is included in the present invention.

1 is an external perspective view of an infusion system 10. FIG. It is a block diagram of the infusion system of FIG. 1 is an external perspective view illustrating an infusion device 1 together with an infusion tube loading aid 5. FIG. (A) is the external appearance perspective view which showed a mode that the door member 26 of the infusion apparatus 1 shown in FIG. 3 was opened and the infusion tube loading auxiliary tool 5 was set, (b) is the door member 26 to a locking position after that. It is an external appearance perspective view which illustrated a closed state. It is XX arrow directional cross-sectional view of FIG.4 (b). (A) is a front view of the infusion tube loading assisting tool 5 in which the closing member 55 is in a free flow state, and (b) is a right side view in which a part of FIG. . (A) is a front view of the infusion tube loading assisting tool 5 in which the closing member 55 is in an anti-free flow state, and (b) is a right side view in which a part of FIG. is there. (A) is an external perspective view of the infusion tube loading aid 5 in which the closing member 55 is in the anti-free flow state, and (b) is an infusion tube loading aid 5 in which the closing member 55 is in the free flow state. It is the external appearance perspective view which fractured | ruptured and illustrated in figure. It is a three-dimensional exploded view of the infusion tube loading aid 5. FIG. 8A is a cross-sectional view taken along the line XX in FIG. 8B, and is an operation explanatory view illustrating the relative positional relationship of the closing member 55 with respect to the bases 50 and 51 together with a schematic diagram of the torsion spring 70. ) Is a cross-sectional view taken along the line XX in FIG. 8B, and shows a state in which the door member 26 is locked at the locking position with respect to the relative positions of the closing member 55 with respect to the bases 50, 51. FIG. 8C is a cross-sectional view taken along the line Y-Y in FIG. 8A and shows the relative positional relationship of the closing member 55 with respect to the bases 50 and 51. FIG. 6 is an operation explanatory view illustrating a state in which the stop is released and opened together with a schematic diagram of the torsion spring 70; (A) is the external appearance perspective view which showed a mode that the latching member 30 provided in the door member 26 was moved toward the latched member 29, (b), the latching member 30 is a latched member. The external appearance perspective view which illustrated the mode immediately before being latched with respect to 29, (c) is the latching member 30 being latched with respect to the to-be-latched member 29, and the convex part 30k which is a shape part obstruct | occluded. FIG. 4D is an external perspective view illustrating a state in which the surface 55a of the member 55 is pressed, and FIG. 4D is operated so that the locking member 30 is unlocked from the locked member 29, and the convex portion 30k is closed. It is the external appearance perspective view which showed a mode that the obstruction | occlusion member 55 will be in an anti-free flow state by having left | separated from the surface 55a of this. It is an external appearance perspective view of the infusion apparatus 1 of another embodiment. It is an operation | movement principle figure of the roller type infusion apparatus of another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Infusion device 2 Infusion tube 4 Puncture needle 5 Infusion tube loading auxiliary tool 6 Clemme 10 Infusion system 11 Case 12 Control device 13 Power supply device 14 Stand 15 Infusion main pole 16 Fixing tool 17 Infusion sub-pole 18 Liquid crystal device 19 Personal data input Device 20 Base 21 Caster 22 Handle 23 Liquid crystal device fixture 25 Main body (FIGS. 3 to 3)
26 Door member 27 Shaft body 28 Finger 29 Locked member 30 Locking member 30k Convex part 31 Handle 32 Lock member 33 Indicator 35 Cam shaft (FIG. 5)
36 Stepping motor 37 Press plate 38 Coil spring 40 Shaft body 49 IC tag 50, 51 Base 50g Holding section 52 Bubble sensor 55 Closing member 55a Front surface 55b Back surface 55y Inner inclined surface 56 Shaft body 60 Screw 61 Nut 62 Retaining ring 70 Torsion spring (with) Force member)
71 One end 72 First groove 73 Other end 74 Second groove

Claims (5)

An infusion tube loading aid that is loaded against an infusion device that pushes the outer peripheral surface of the infusion tube in the longitudinal direction and feeds the medicinal solution, and holds the medicinal solution in a free flow state and an anti-free flow state,
The infusion drive unit of the infusion device is
A door member that can be freely opened and closed between a locking position and an opening position;
Driving means for holding the infusion tube between the door member and feeding the liquid;
Locking means for holding the door member at the locking position;
The infusion tube loading aid is:
A base portion that is loaded between the door member and the driving means, and has a holding portion that holds a midway portion of the infusion tube;
A closing member provided rotatably on the base between a closing position for bringing the infusion tube into the anti-free flow state and a standby position for bringing the infusion tube into the free flow state;
After the base is mounted on the infusion drive unit and the door member is in the locking position, when the door member is opened to the open position, the engagement state is released, and the closing member is An urging member that moves and urges the anti-flow state ,
The biasing member is
One end thereof is inserted into the first groove portion of the base portion, the winding portion is inserted into a shaft body for pivotally supporting the closing member on the base portion, and the other end is inserted into the second groove portion of the base portion. The engagement state is maintained by being infiltrated, and when the engagement state is released, the one end is always urged in the opening direction so as to be moved from the first groove portion to the back surface portion of the closing member. An infusion tube loading aid comprising a torsion spring formed . The first groove is formed on an inclined surface on the back side of the base,
The surface portion of the closing member is pressed by a shape portion including a convex portion formed on the door member or the locking means, and comes into contact with the inner inclined surface of the closing member, so that the one end is the first groove portion. from off, the by being moved to the rear surface portion of the closure member slides on the inclined surface, the infusion tube loading aid according to claim 1, characterized in that biasing the closure member to the anti-flow state . The infusion device according to claim 1 or 2 , wherein the infusion device includes a peristaltic infusion pump and a roller infusion device in which the door member is provided to be openable and closable in the front-rear direction and the left-right direction. The base, IC tag that stores information about the chemical, claims 1 to 3 wherein the bubble detector for detecting the presence or absence of air bubbles in the infusion tube, characterized by being further arranged an occlusion detector for detecting occlusion The infusion tube loading aid according to any one of the above. An infusion device for feeding a medicinal solution by pressing the outer peripheral surface of the infusion tube in the longitudinal direction,
An infusion device comprising the infusion tube loading aid according to any one of claims 1 to 4 .

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