JP6736981B2 - Syringe pump - Google Patents

Description

The present invention relates to a touch panel and syringe pump.

Syringe pumps are widely used because they can highly accurately administer (inject) a drug solution in a syringe to a patient and can easily control the flow rate of the drug solution as compared with other types of pumps.

As disclosed in Japanese Unexamined Patent Application Publication No. 2004-024884 (Patent Document 1), the syringe pump includes a setting dial as a unit for changing the set value. The user turns the setting dial to set a numerical value relating to the amount of the drug solution delivered from the syringe.

JP 2004-024884 A

The setting dial disclosed in Japanese Patent Laid-Open No. 2004-024884 (Patent Document 1) is a so-called jog dial type. The user can set the numerical value regarding the amount of the drug solution delivered from the syringe by physically rotating the setting dial with respect to the main body unit.

When setting a numerical value, it may be desired to change the numerical value from the currently set numerical value (displayed on the display). In this case, the user can quickly change the numerical value by rotating the setting dial, for example, a plurality of times at high speed. When it is desired to greatly change the numerical value, the greater the change amount (increase/decrease amount) of the numerical value with respect to the rotation angle and the rotation speed input to the setting dial, the higher the operability.

On the contrary, there is a case where it is desired to change the numerical value from the currently set numerical value (displayed on the display unit) to a smaller value. In this case, the user can change the numerical value small and accurately by rotating the setting dial slightly at low speed. When it is desired to change the numerical value small and accurately, the smaller the amount of change (increase/decrease) in the numerical value with respect to the rotation angle and the rotation speed input to the setting dial, the higher the operability.

With the jog dial type setting dial disclosed in Japanese Unexamined Patent Application Publication No. 2004-024884 (Patent Document 1), an operation that can be sufficiently satisfied with respect to both requests for changing a numerical value largely and for changing a numerical value small. It is difficult to provide sex to users. In recent years, touch panels have been used in various fields, but touch panels have not been able to provide users with sufficient operability in response to such demands. That is, there is room for improvement in the conventional setting means in terms of operability in that the numerical value can be set quickly.

In addition, in a syringe pump equipped with a jog dial type setting dial, if the chemical liquid in the syringe is splashed or leaks, the chemical liquid may get into the gap between the main unit (dial placement hole) and the setting dial. There is. If the liquid medicine solidifies or hardens in the gap, the resistance required to rotate the setting dial increases, and it becomes difficult for the user to operate the setting dial. That is, in the conventional syringe pump provided with the jog dial type setting dial, it is sometimes necessary to remove the jog dial type setting dial from the main body, and clean or wash it periodically.

The present invention has been made in view of the above circumstances, and provides a touch panel that is superior in operability to a conventional jog dial type setting dial when changing an installation value, and also has operability. And it aims at providing the syringe pump excellent in maintenance property.

A touch panel based on the present invention is a touch panel that changes a setting value by receiving a touch operation by a user, and is provided on an inner circumference operation unit that receives the touch operation in the circumferential direction and outside the inner circumference operation unit. A partition formed between the inner peripheral operating part and the outer peripheral operating part, the outer peripheral operating part receiving the touch operation in the circumferential direction, and a convex part or a step extending along the circumferential direction. When the touch operation is performed on the inner peripheral operation portion by a specific angle in the circumferential direction, the set value is changed by the first change amount, and the inner peripheral operation portion is changed to the outer peripheral operation portion. On the other hand, when the touch operation is performed by the specific angle in the circumferential direction, the set value is changed by the second change amount different from the first change amount.

According to the above configuration, the touch panel does not have a portion that physically rotates, and the stain can be easily removed by simply wiping the surface. In addition, the amount of increase or decrease (change amount) of the set value is different between when the touch operation is performed on the inner peripheral operation unit of the touch panel and when the touch operation is performed on the outer peripheral operation unit of the touch panel. It is possible to obtain satisfactory operability for both demands of changing a large value and a small value.

In the touch panel, preferably, the first change amount is smaller than the second change amount.

In the touch panel, preferably, the inner peripheral operation portion, the outer peripheral operation portion, and the partition portion have an annularly extending shape.

The touch panel preferably further includes a vibration generating unit that generates vibration in response to receiving the touch operation.

A syringe pump according to the present invention is a syringe pump for delivering a liquid medicine from a syringe having an outer cylinder and a pusher, and includes the touch panel according to the present invention, a main body unit provided with the touch panel, and the main body unit. A holder for holding the outer cylinder of the syringe, a drive unit for moving the pusher with respect to the outer cylinder of the syringe, and the syringe based on the touch operation input to the touch panel. And a control unit that sets a numerical value related to the amount of the chemical solution delivered from the device as the set value.

In the syringe pump, preferably, the main body unit has a shape extending in a longitudinal direction parallel to the moving direction of the pusher, and the touch panel intersects the longitudinal direction of the main body unit. It is provided on the side surface.

According to the above configuration, it is possible to obtain a touch panel with excellent operability and a syringe pump including such a touch panel with excellent maintainability.

FIG. 3 is a perspective view showing an upper surface, a left side surface and the like of syringe pump 10 in the first embodiment. FIG. 3 is a perspective view showing an upper surface, a right side surface and the like of syringe pump 10 in the first embodiment. FIG. 3 is a diagram of the touch panel 20 provided in the syringe pump 10 according to the first embodiment as viewed from the front thereof. FIG. 3 is a perspective view showing touch panel 20 provided in syringe pump 10 in the first embodiment. FIG. 7 is a diagram showing a state where touch panel 20 provided in syringe pump 10 in the first embodiment is being operated. It is the figure which looked at the touch panel 20A with which the syringe pump in a comparative example was equipped from the front. FIG. 7 is a perspective view showing a touch panel 20B included in the syringe pump according to the second embodiment. FIG. 13 is a perspective view showing the upper surface, the right side surface, and the like of syringe pump 10C in the third embodiment. It is the figure which looked at the touch panel 20D with which the syringe pump in Embodiment 4 was equipped from the front. It is a perspective view which shows the infusion pump 10T in other embodiment.

The touch panel according to the embodiment will be described below with reference to the drawings. The same parts and corresponding parts are denoted by the same reference numerals, and duplicate description may not be repeated. Hereinafter, each embodiment will be described based on the touch panel applied to the syringe pump, but the technical idea regarding the touch panel disclosed below is not limited to the syringe pump, and various types of infusion pumps and the like can be used. It is also applicable to medical equipment, general electric equipment, and industrial equipment.

[Embodiment 1]
(Syringe pump 10)
The syringe pump 10 according to the first embodiment will be described with reference to FIGS. 1 to 5. The syringe pump 10 is used for delivering the liquid medicine from the syringe 1 (FIG. 1) having the outer cylinder 2 and the pusher 3.

FIG. 1 is a perspective view showing a top surface, a left side surface and the like of the syringe pump 10. FIG. 2 is a perspective view showing the upper surface, the right side surface, and the like of the syringe pump 10, and shows the syringe pump 10 as seen from the direction of arrow II in FIG. 1. FIG. 3 is a view of the touch panel 20 provided in the syringe pump 10 as seen from the front side thereof, and shows the touch panel 20 as seen from the direction of arrow III in FIG. 2. FIG. 4 is a perspective view showing the touch panel 20 (the touch panel 20 in FIG. 2 is enlarged).

With reference to FIGS. 1 to 4 (mainly FIG. 1), the syringe pump 10 includes a main body unit 11, a holding unit 12, a driving unit 15, a control unit 17 (FIG. 2), and a touch panel 20. The main body unit 11 has a shape extending in the longitudinal direction parallel to the moving direction of the pusher 3 of the syringe 1.

The main body unit 11 has an upper surface 11T and a side surface 11S, and the side surface 11S is provided at a position intersecting the longitudinal direction of the main body unit 11. A display unit 18 and various operation buttons 19 are provided on the upper surface 11T of the main body unit 11. Although the details will be described later, the touch panel 20 is provided on the side surface 11S (right side surface) of the main body unit 11.

The holder 12 is provided in the main body unit 11 and can hold the outer cylinder 2 of the syringe 1. The holding part 12 includes a mounting part 13 and a clamp part 14. After mounting the outer cylinder 2 of the syringe 1 on the mounting portion 13, the clamp portion 14 is rotated. The outer cylinder 2 of the syringe 1 is fixed to the main body unit 11 by being sandwiched between the mounting portion 13 and the clamp portion 14.

The drive unit 15 is provided on the side closer to the side surface 11S when viewed from the holding unit 12. The drive unit 15 has an insertion portion 16, and the end portion 5 of the syringe 1 (presser 3) is inserted into this insertion portion 16. The drive unit 15 is driven by the control unit 17 (FIG. 2) and can move the pusher 3 with respect to the outer cylinder 2 of the syringe 1 according to a predetermined setting condition.

The outer cylinder 2 of the syringe 1 is filled with a drug solution (not shown). One end of the tube is connected to the tip port 4 of the outer cylinder 2, and the other end of the tube is connected to an indwelling needle (not shown) or the like. By moving the pusher 3 by driving the driving unit 15, the drug solution in the syringe 1 is administered to the patient through the tube.

(Touch panel 20)
With reference to FIGS. 2 to 4, touch panel 20 can receive a touch operation by a user. As described above, the touch panel 20 is provided on the side surface 11S (right side surface) of the main body unit 11. The touch panel 20 may be provided on the left side surface of the main body unit 11 or the upper surface 11T of the main body unit 11.

An opening having substantially the same size as the size of the touch panel 20 is provided on the side surface 11S of the main body unit 11, and the surface of the touch panel 20 is exposed from the inside of the opening. Between the outer peripheral portion of the touch panel 20 and the inner peripheral portion of the opening, a structure such as a drip-proof, waterproof, and splash-proof structure is formed by packing or the like.

The touch panel 20 is connected to the control unit 17 via the interface unit 21 (FIG. 2). The signal generated by the touch operation input to the touch panel 20 is output to the control unit 17 via the interface unit 21.

The control unit 17 sets a numerical value relating to the amount of the liquid medicine delivered from the syringe 1 as a set value based on a signal from the interface unit 21 (touch operation input to the touch panel 20), and displays the set value on the display unit 18. Or the numerical value displayed on the display unit 18 is changed to the set value. The "numerical value relating to the amount of drug solution delivered from the syringe 1" here is not limited to a numerical value directly related to the dose of the drug solution, such as the flow rate of the drug solution, the planned amount, and the integrated amount, but various times and patients. It also includes numerical values indirectly related to the dose of the medicinal solution, such as height, weight, and age.

As shown in FIGS. 3 and 4, the touch panel 20 is provided on its surface with an inner peripheral operation section 22, an outer peripheral operation section 23, and a partition section 24. The inner circumference operating portion 22 has a shape extending along the circumferential direction, and in the present embodiment, the inner circumference operating portion 22 has one continuous annular shape. The inner circumference operation unit 22 has a plurality of detection units 22S (FIG. 3) arranged side by side along the circumferential direction, and can accept a touch operation in the circumferential direction on the touch panel 20.

The configuration in which the inner circumference operation unit 22 has a plurality of detection units 22S is not essential, and as long as the touch operation in the circumferential direction on the touch panel 20 can be accepted, the inner circumference operation unit 22 can be operated. As a principle of operation, any method such as a resistance thin film method, a surface acoustic wave method, and a capacitance method may be adopted.

The outer circumference operating portion 23 is located outside the inner circumference operating portion 22. The outer peripheral operation portion 23 also has a shape extending along the circumferential direction, and in the present embodiment, the outer peripheral operation portion 23 also has one continuous annular shape. The outer circumference operation unit 23 has a plurality of detection units 23S (FIG. 3) arranged side by side along the circumferential direction, and can accept a touch operation in the circumferential direction on the touch panel 20.

It is not essential that the outer peripheral operation unit 23 has a plurality of detection units 23S. If the peripheral operation unit 23 can receive a touch operation in the circumferential direction on the touch panel 20, the operation principle of the outer peripheral operation unit 23 is as follows. Any method such as a resistance thin film method, a surface acoustic wave method, and a capacitance method may be adopted. Different methods may be adopted for the inner circumference operating section 22 and the outer circumference operating section 23.

The partition portion 24 is formed between the inner circumference operating portion 22 and the outer circumference operating portion 23, and is composed of a convex portion extending along the circumferential direction. The inner circumference operating portion 22 and the outer circumference operating portion 23 are provided on the same plane, but the partitioning portion 24 projects outward from the plane (FIG. 4). Even if the user does not look at the touch panel 20, the presence of the partition 24 allows the user to easily recognize whether the user is touching the inner peripheral operation unit 22 or the outer peripheral operation unit 23.

FIG. 5 is a diagram showing how the touch panel 20 is being operated. As described above, the numerical value (setting value) regarding the amount of the drug solution delivered from the syringe 1 (FIG. 1) is changed based on the touch operation input by the user on the touch panel 20. Specifically, when the control unit 17 (FIG. 2) changes the set value (for example, the numerical value displayed on the display unit 18) based on the touch operation input to the touch panel 20, the control unit 17 operates as follows. When the touch operation is performed on the circumferential operation portion 22 by the specific angle θ (FIG. 5) in the circumferential direction (arrow AR1), the set value is changed by the first change amount.

On the other hand, when the control unit 17 (FIG. 2) changes the set value based on the touch operation input to the touch panel 20, the control unit 17 determines the specific angle θ in the circumferential direction with respect to the outer peripheral operation unit 23. When the touch operation is performed by the amount (arrow AR2), the set value is changed by the second change amount different from the first change amount. Preferably, the first change amount is configured to be smaller than the second change amount.

For example, when the touch operation is performed on the inner circumference operating portion 22 by 150° (specific angle θ) in the circumferential direction, in other words, the surface of the inner circumference operating portion 22 is moved in the circumferential direction. When a scroll operation such as tracing by 150° is performed, the control unit 17 changes the value of one digit in the set value (the numerical value displayed on the display unit 18). The set value increases, for example, 15, 16, 17 or decreases, for example, 17, 16, 15 in accordance with the scroll direction of the touch operation on the inner circumference operation unit 22.

When the touch operation is performed on the outer peripheral operation portion 23 by 150° (specific angle θ) in the circumferential direction, in other words, the surface of the outer peripheral operation portion 23 is rotated by 150° in the circumferential direction. When a tracing operation such as tracing is performed, the control unit 17 changes the value of ten digits among the set values (numerical values displayed on the display unit 18). Depending on the scrolling direction of the touch operation on the outer circumference operation unit 23, the set value increases, for example, 15, 25, 35, or decreases, for example, 35, 25, 15.

(Action and effect)
As mentioned at the beginning, when the user sets the set value, there are times when the user wants to change the numerical value from the currently set numerical value (displayed on the display unit 18) to a large value. Sometimes you may want to change

In the syringe pump 10 of the present embodiment, the user performs a touch operation (scroll operation) in the circumferential direction on the outer peripheral operation portion 23 of the touch panel 20 to largely change the set value from the currently set numerical value. can do. On the other hand, the user can slightly change the set value from the currently set numerical value by performing a circumferential touch operation (scroll operation) on the inner circumferential operation portion 22 of the touch panel 20.

With the jog dial type setting dial provided in the conventional syringe pump, it is not possible to provide the user with sufficiently satisfactory operability in response to both demands of changing a large value and a small value. was difficult. It is also possible to satisfy such a requirement by providing two main body units with jog dial type setting dials, one of which is configured to increase the amount of change and the other of which is configured to reduce the amount of change. However, in this case, the device tends to be large. It is conceivable to dispose two setting dials in the side surface of the main body unit, but in this case, it is difficult to increase the size of each setting dial and it is difficult to obtain sufficient operability.

On the other hand, according to the syringe pump 10 of the present embodiment, the touch panel 20 has a total of two inner peripheral operating parts 22 and outer peripheral operating parts 23. By properly using the inner peripheral operating section 22 and the outer peripheral operating section 23, which are arranged adjacent to each other with the partition section 24 interposed therebetween, the user can quickly set the numerical values, thereby realizing excellent operability. It is possible. Further, even if the user does not look at the touch panel 20, the presence of the partition 24 allows the user to easily recognize whether the user is touching the inner circumference operating section 22 or the outer circumference operating section 23.

That is, the holding unit 12 and the driving unit 15 are provided on the front surface of the main body unit 11, and the display unit 18 and various operation buttons 19 are provided on the upper surface 11T of the main body unit 11. When the touch panel 20 is provided on the front surface or the upper surface 11T of the main body unit 11, it becomes difficult to downsize the main body unit 11. Compared to that case, providing the touch panel 20 on the side surface 11S of the main body unit 11 facilitates miniaturization of the main body unit 11.

However, when the touch panel 20 is provided on the side surface 11S of the main body unit 11, it becomes difficult for the user to visually recognize the touch panel 20. On the other hand, in the syringe pump 10 of the present embodiment, the presence of the partition portion 24 allows the user to easily recognize whether the user is touching the inner peripheral operation portion 22 or the outer peripheral operation portion 23. Therefore, it is possible to achieve both miniaturization and good operability.

As described above, each of the inner circumference operating portion 22, the outer circumference operating portion 23, and the partition portion 24 has one continuous annular shape (having an annularly extending shape). According to this configuration, the user can perform continuous touch operations (scroll operations) in the circumferential direction while touching the inner circumference operation section 22 and the outer circumference operation section 23.

As described above, as compared with the case where the user performs a circumferential touch operation (scroll operation) on the inner circumference operation unit 22, the user performs a circumferential touch operation (scroll operation on the outer circumference operation unit 23. It is advisable to increase the amount of change in the set value in the case of performing ). Since the outer circumference operation portion 23 can secure a larger stroke range than the inner circumference operation portion 22, in this case, rough adjustment of the set value can be performed quickly and easily.

Alternatively, the configuration may be reversed. That is, as compared with the case where the user performs a circumferential touch operation (scroll operation) on the inner circumference operation unit 22, the user performs a circumferential touch operation (scroll operation) on the outer circumference operation unit 23. The change amount of the set value may be made smaller when it is performed. Since the outer circumference operating portion 23 can secure a larger strokeable range than the inner circumference operating portion 22, in this case, fine adjustment of the set value can be performed quickly and easily.

As described at the beginning, the drug solution in the syringe 1 may be scattered or leak onto the syringe pump 10. In the present embodiment, touch panel 20 is not configured to physically rotate unlike a jog dial type setting dial. There is almost no gap between the main body unit 11 and the touch panel 20, and a structure such as a drip-proof, waterproof, and splash-proof structure is preferably formed in this gap by packing or the like.

In the conventional syringe pump, the chemical solution sometimes enters the gap between the main body unit (dial arrangement hole) and the setting dial, but in the syringe pump 10 of the present embodiment, such a case hardly occurs. Even if the chemical liquid is solidified or hardened in the gap, the resistance required for the scroll operation of the touch panel 20 does not increase, and the user does not have difficulty changing the set value. Since the touch panel 20 does not have a portion that physically rotates with respect to the main body unit 11, stains can be easily removed only by wiping the surface.

[Comparative example]
FIG. 6 is a front view of the touch panel 20A included in the syringe pump of the comparative example. Only the operation unit 25 is provided on the surface of the touch panel 20A. The operation unit 25 has a plurality of detection units 25S arranged side by side along the circumferential direction, and can accept a touch operation (arrow AR3) in the circumferential direction on the touch panel 20A.

In the case of the touch panel 20A, the syringe pump can exhibit a certain degree of advantage in terms of downsizing and maintenance. However, since only one operation unit 25 is provided on the touch panel 20A, the user is provided with sufficient operability to meet both demands of changing the numerical value largely and decreasing the numerical value. It is difficult to provide.

[Second Embodiment]
FIG. 7 is a perspective view showing touch panel 20B provided in the syringe pump according to the second embodiment. In the above-described first embodiment (FIG. 4), partition section 24 provided on the surface of touch panel 20 is formed of a convex section extending along the circumferential direction. In the first embodiment, the inner circumference operating portion 22 and the outer circumference operating portion 23 are provided on the same plane, and the partitioning portion 24 projects outward from the plane.

On the other hand, in the present embodiment, partition surface 24A is provided instead of partition portion 24 on the surface of touch panel 20B. The partition portion 24A is composed of a step extending along the circumferential direction. The inner peripheral operating portion 22 and the outer peripheral operating portion 23 are not provided on the same plane, and the inner peripheral operating portion 22 is provided at a position recessed compared to the outer peripheral operating portion 23. Even with this configuration, the user can easily recognize whether the inner peripheral operating section 22 or the outer peripheral operating section 23 is touched by the presence of the partition section 24A without looking at the touch panel 20B.

The outer peripheral operation portion 23 may be provided at a position recessed as compared with the inner peripheral operation portion 22. In this case, the inner circumference operating portion 22 is arranged so as to project outward from the outer circumference operating portion 23. Even with this configuration, the user can easily recognize whether the inner peripheral operating section 22 or the outer peripheral operating section 23 is touched by the presence of the partition section 24A without looking at the touch panel 20B.

[Third Embodiment]
FIG. 8 is a perspective view showing an upper surface, a right side surface, and the like of syringe pump 10C according to the third embodiment. The first embodiment and the third embodiment differ in the following points. That is, in syringe pump 10C of the third embodiment, touch panel 20 further includes vibration generating unit 27.

The vibration generating unit 27 is disposed inside the main body unit 11, for example, and can generate vibration in response to the touch operation accepted by the touch panel 20 to vibrate the surface of the touch panel 20. For example, each time the circumferential touch operation (scroll operation) is performed (advanced) by a certain distance, the vibration generation unit 27 applies vibration to the user's fingertip. The user can have a stronger feeling of setting various numerical values.

The vibration is generated only when the numerical value that directly relates to the dose of the drug solution, such as the flow rate of the drug solution, the planned amount, and the cumulative amount, is set, and the vibration is generated at various times, the height, weight, age, etc. of the patient. The vibration may be prevented from occurring when a numerical value indirectly related to the dose is set.

[Embodiment 4]
FIG. 9 is a front view of touch panel 20D provided in the syringe pump according to the fourth embodiment. The first embodiment and the fourth embodiment are different in the following points. That is, in touch panel 20D of the fourth embodiment, each of inner circumference operating portion 22, outer circumference operating portion 23, and partition portion 24 has a semicircular arc shape.

According to this configuration, the occupied area of side surface 11S of main body unit 11 can be made smaller than that of touch panel 20 in the first embodiment. By utilizing the vacant space, the side surface 11S may be provided with a touch panel different from the touch panel 20D or other operating means. The shape of the touch panel 20D is not limited to the semicircular shape of 180°, and may be another circular arc shape such as 90°, 120°, 150°, and 240°.

[Other Embodiments]
In each of the above-described embodiments, the touch panel has two inner peripheral operating parts 22 and outer peripheral operating parts 23. The touch panel may have another operation unit inside the inner circumference operation unit 22 capable of receiving a touch operation in the circumferential direction. The touch panel may have, on the outer side of the outer peripheral operation section 23, still another operation section capable of receiving a touch operation in the circumferential direction.

As described at the beginning of the description of the embodiment with reference to FIG. 10, the touch panel 20 is also applicable to the infusion pump 10T. The infusion pump 10T is used when injecting a medical drug solution into the body. The touch panel 20 may be provided on the side surface 11S of the pump body (casing) of the infusion pump 10T (the configuration shown in FIG. 10) or may be provided on the front surface 11F of the pump body. Even when the touch panel 20 is provided on the infusion pump 10T, it is possible to obtain substantially the same actions and effects as those of the above-described embodiments.

Although the embodiments have been described above, the above disclosure is illustrative in all points and not restrictive. The technical scope of the present invention is shown by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

1 Syringe, 2 Outer Cylinder, 3 Pusher, 4 Tip Port, 5 End, 10, 10C Syringe Pump, 10T Infusion Pump, 11 Main Unit, 11S Side, 11F Front, 11T Top, 12 Holding, 13 Placement , 14 clamp part, 15 drive part, 16 insertion part, 17 control part, 18 display part, 19 operation buttons, 20, 20A, 20B, 20D touch panel, 21 interface unit, 22 inner circumference operation part, 22S, 23S, 25S Detection part, 23 Peripheral operation part, 24, 24A Partition part, 25 Operation part, 27 Vibration generation part, AR1, AR2, AR3 Arrows.

Claims (5)

A syringe pump for delivering a liquid medicine from a syringe having an outer cylinder and a pusher,
A touch panel to change the setting value by accepting a touch operation by the user,
A main body unit provided with the touch panel,
A holding portion which is provided in the main body unit and holds the outer cylinder of the syringe,
A drive unit that moves the pusher with respect to the outer cylinder of the syringe;
Based on the touch operation input to the touch panel, a control unit that sets a numerical value related to the amount of the drug solution delivered from the syringe as the set value,
The touch panel is
An inner circumference operation unit that receives the touch operation in the circumferential direction,
An outer peripheral operation unit which is provided outside the inner peripheral operation unit and receives the touch operation in the circumferential direction,
Comprising a convex portion or a step extending along the circumferential direction, comprising a partition formed between the inner peripheral operating portion and the outer peripheral operating portion,
When the touch operation is performed on the inner circumferential operation portion by a specific angle in the circumferential direction, the set value is changed by the first change amount,
When the touch operation is performed on the outer peripheral operation portion by the specific angle in the circumferential direction, the set value is changed by a second change amount different from the first change amount.
Syringe pump. The first variation is smaller than the second variation,
The syringe pump according to claim 1 . The inner peripheral operating portion, the outer peripheral operating portion, and the partition portion have a shape extending in an annular shape,
The syringe pump according to claim 1 . Further comprising a vibration generator that generates vibration in response to receiving the touch operation,
The syringe pump according to any one of claims 1 to 3 . The main body unit has a shape extending in the longitudinal direction parallel to the moving direction of the pusher,
The touch panel is provided on a side surface of the body unit that intersects the longitudinal direction.
The syringe pump according to any one of claims 1 to 4 .

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