An infusion set having the ability to control the amount of an injectable agent injected into one of the limbs, and a system for detecting and controlling the drip rate of an infusion device

Abstract

An infusion set of a system for detecting and controlling a drip rate is disclosed. The infusion set includes an infusion device and an adjustment device. The adjustment device is attached to the infusion device and adjusts the drip rate of the injection agent in the infusion device. The infusion set of the system further includes an actuation unit and at least one detection module. The actuation unit is coupled to a control unit of the system for staff in a hospital to control the drip rate through the operation of the control unit. Furthermore, the infusion set of the system further includes at least one detection module for drip counting, thereby providing more information to staff when controlling the drip rate of the infusion set.

Description

Technical Field

[0001] The present disclosure relates to an infusion set and a system, and more particularly to an infusion set having the ability to control the amount of an injectable agent infused into one of the limbs, and a system for detecting and controlling the drip rate of an infusion device.

Background Art

[0002] Intravenous infusion is a frequently used administration route for treating patients. Generally speaking, an infusion adjustment device is attached to an intravenous infusion set to adjust the amount of infusion. In the above-mentioned infusion adjustment device, since medical staff are required to observe the number of drops based on experience and then manually operate the infusion adjustment device to adjust the infusion amount, in the conventional solution, long-term training for medical staff is required, and it is not possible to automatically adjust the drip rate for patients based on the current drip rate of the injectable agent. Therefore, based on the responsibility and mission for the health of patients, there is indeed a need to improve the above-mentioned drawbacks of the intravenous infusion set.

Summary of the Invention

Problems to be Solved by the Invention

[0003] To solve the above drawbacks, the present disclosure provides an infusion set having the ability to automatically control the amount of an injectable agent, and a system for detecting and controlling the drip rate of an infusion device.

Means for Solving the Problems

[0004] One embodiment of the present disclosure discloses an infusion set having the ability to automatically control the amount of an injection agent. The infusion set includes an infusion device and an adjustment device. The infusion device includes a syringe body, an upper infusion tube, a lower infusion tube, and an air tube. The syringe body has an internal chamber formed therein, and the internal chamber is configured to contain an injection agent. The upper infusion tube connects a side surface of the syringe body to an infusion member, and the injection agent drips from the infusion member into the internal chamber of the syringe body through the upper infusion tube. The lower infusion tube is connected to another side surface of the syringe body and is configured to be connected to one of the limbs. The air tube is connected to a side surface of the syringe body and is configured to enable the injection agent contained in the internal chamber of the syringe body to be infused into one of the limbs through the lower infusion tube. The adjustment device is attached to at least one of the upper infusion tube, the lower infusion tube, and the air tube. The adjustment device includes a base and a movable member. The base is disposed on a side surface of at least one of the upper infusion tube, the lower infusion tube, and the air tube described above. The movable member is disposed on another side surface of at least one of the upper infusion tube, the lower infusion tube, and the air tube described above. The movable member is movable relative to the base so as to cooperate with the base to deform at least one wall of the upper infusion tube, the lower infusion tube, and the air tube described above.

[0005] One embodiment of the present disclosure discloses a system for detecting and controlling the dropping speed of an injection device. The system includes the above-described injection set, an operating unit, and a control unit. The injection set further includes a first detection module disposed beside the syringe body and configured to detect the count of the injection agent dropping from the injection member into the internal chamber of the syringe body. The first detection module includes a first light-emitting unit and a first light-receiving unit. The first light-emitting unit is disposed on the side surface of the syringe body. The first light-emitting unit emits light to the syringe body in a first optical path passing through a first dropping path. Along the first dropping path, the injection agent drops from the injection member into the internal chamber of the syringe body. The first light-receiving unit is disposed on another side surface of the syringe body. The operating unit is coupled to the movable member of the adjustment device. The first detection module is disposed beside the syringe body and configured to detect the count of the injection agent dropping from the injection member into the internal chamber of the syringe body. The control unit is coupled to the operating unit and the first detection module. The control unit controls the operating unit to drive the movable member to move relative to the base based on the count of the dropping of the injection agent from the injection member into the internal chamber of the syringe body.

[0006] One embodiment of the present disclosure discloses a system for detecting and controlling the dropping speed of an injection device. The system includes the above injection set. The syringe body includes a main part and an auxiliary part connected to the main part. An internal chamber is formed in the main part. The auxiliary part has a liquid storage space formed therein. The liquid storage space communicates with the internal chamber such that the injection agent in the internal chamber drips into the liquid storage space. The injection set further includes a second detection module configured to detect the count of the injection agent dripping from the internal chamber of the main part into the liquid storage space of the auxiliary part and disposed beside the auxiliary part. The second detection module includes a second light emitting unit and a second light receiving unit. The second light emitting unit is disposed on a side surface of the auxiliary part. The second light emitting unit emits light to the auxiliary part in a second optical path passing through a second dropping path. Along the second dropping path, the injection agent drips from the internal chamber of the main part into the liquid storage space of the auxiliary part. The second light receiving unit is disposed on another side surface of the auxiliary part.

[0007] In summary, the injection set of the system for detecting and controlling the dropping speed of the injection device of the present disclosure includes an operating unit that is coupled to a movable member of an adjustment device and drives the movable member to move relative to a base so as to deform at least one wall of an upper injection tube, a lower injection tube, and an air tube in cooperation with the base. In such a manner, the dropping speed of the injection agent can be automatically adjusted by an operating module.

[0008] It is certain that these and other objects of the present disclosure will become apparent to those skilled in the art after reading the following detailed description of the preferred embodiments illustrated in the various figures and drawings.

Brief Description of the Drawings

[0009]

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DETAILED DESCRIPTION OF THE INVENTION

[0010] To enable those skilled in the art to better understand the present disclosure, the following preferred embodiments are provided with the drawings to illustrate the present disclosure and the effects to be achieved. It should be noted that the drawings are simplified schematic diagrams. Therefore, only the relationships of the elements related to the present disclosure and their combinations are shown to more clearly explain the basic framework or implementation method of the present disclosure. The actual elements and configurations may be more complex. In addition, for the sake of convenience, the number of components in the drawings may not be equal to the number of actual components, the shapes and sizes of the components may not be drawn in proportion to the actual shapes and sizes, and furthermore, the ratio can be adjusted according to the design requirements.

[0011] In the following embodiments, directional terms such as up, down, left, right, front, or back are used with reference to the orientation of one or more of the illustrated figures. As such, the directional terms are used for illustrative purposes and are in no way limiting.

[0012] Ordinal terms such as first, second, and third can be used to describe various elements, and these elements are not limited by the definition of the ordinal terms. Ordinal terms are used herein to distinguish one element from another, and the ordinal terms of the elements in the claims are arranged according to the claimed order, which may be different from the order herein. As such, the first element described in the following description may be the second element in the claims.

[0013] Please refer to FIG. 1. FIG. 1 is a schematic diagram illustrating a system 9000 according to a first embodiment of the present disclosure. The system 9000 includes an injection set 1000. The injection set 1000 includes an injection device 1001, and the injection device 1001 includes a syringe body 1, an upper injection tube 2, a lower injection tube 3, and an air tube 4. The syringe body 1 has an internal chamber 10 formed therein (the internal chamber 10 can be seen in FIG. 6), and the internal chamber 10 is configured to contain an injection agent 2000.

[0014] The upper injection tube 2 is connected to the side surface of the syringe body 1 to the injection member 3000 such that the injection agent 2000 within the injection member 3000 drips into the internal chamber 10 of the syringe body 1 through the upper injection tube 2. The lower injection tube 3 is connected to another side surface of the syringe body 1 and is configured to be connected to one of the limbs 4000 of the person 5000. The air tube 4 is connected to the side surface of the syringe body 1 and is configured to enable the injection agent 2000 contained in the internal chamber 10 of the syringe body 1 to be injected into one of the limbs 4000 through the lower injection tube 3.

[0015] In actual application, the injection device 1001 may include an injection port 5. The injection member 3000 may be an injection bag, and the injection agent 2000 contained in the injection bag may be an intravenous infusion such as an intravenous antibiotic, physiological saline, a glucose solution, or the like.

[0016] Furthermore, the injection set 1000 includes an adjustment device C attached to at least one of the upper injection tube 2, the lower injection tube 3, and the air tube 4. The adjustment device C includes a base C0 and a movable member C1. The base C0 is disposed on a side surface of at least one of the upper injection tube 2, the lower injection tube 3, and the air tube 4 described above. The movable member C1 is disposed on another side surface of at least one of the upper injection tube 2, the lower injection tube 3, and the air tube 4 described above. The movable member C1 is movable relative to the base C0 so as to cooperate with the base C0 to deform at least one wall of the upper injection tube 2, the lower injection tube 3, and the air tube 4 described above.

[0017] In such a manner, the movement of the movable member C1 relative to the base C0 causes at least one wall of the upper injection tube 2, the lower injection tube 3, and the air tube 4 described above to deform, thereby enabling the injection set 1000 to adjust and control the amount of the injection agent 2000 injected into one of the limbs 4000 of the person 5000.

[0018] Please refer to FIGS. 1 to 5. FIG. 2 is a schematic diagram illustrating the adjustment device C in the release state S1 and the twist state S2 according to the first embodiment of the present disclosure. FIG. 3 is a schematic diagram illustrating the adjustment device C according to another embodiment of the present disclosure. FIG. 4 is a schematic diagram illustrating the adjustment device C according to still another embodiment of the present disclosure. FIG. 5 is a schematic diagram illustrating the adjustment device C according to still another embodiment of the present disclosure. FIGS. 2 to 5 show four embodiments of the mechanism for illustrating the adjustment device C, and it should be noted that any of them can be adapted to at least one of the above-mentioned upper injection pipe 2, lower injection pipe 3, and air pipe 4. Further, the same components shown in these embodiments have the same structure and function, and further description is omitted for simplicity.

[0019] As shown in FIG. 2, the adjustment device C is a button set 6, the base is the mounting member 60, and the movable member is a rotary button 61 that is rotatable with respect to the mounting member 60. A channel 600 is formed through the mounting member 60 and is attached to the upper injection pipe 2. The rotary button 61 includes a button body 610 and a pair of tabs 611. The button body 610 is attached to the mounting member 60 in a rotatable manner. The pair of tabs 611 protrude from the button body 610 and are rotatable together with the button body 610. The pair of tabs 611 engage with the upper injection pipe 2 so as to twist the wall of the upper injection pipe 2 in cooperation with the mounting member 60 through the rotation of the button body 610 with respect to the mounting member 60.

[0020] As shown in FIGS. 1 and 2, the injection set 1000 may further include an operating unit C, and the system 9000 may further include a control unit F. In the present disclosure, the operating unit C can be a stepping motor or a servo motor coupled to the button body 610 and the control unit F. The control unit F is configured to generate a control signal for controlling the operating unit C to rotate the button body 610. When the button body 610 rotates, the button body 610 will twist the wall of the upper injection tube 2 by the engagement between a pair of tabs 611 and the wall of the upper injection tube 2 so as to change the cross-section of the upper injection tube 2.

[0021] In the present disclosure, the control unit F may be a server, a desktop computer, etc., and is provided to hospital staff to operate so as to generate a control signal. In such a manner, hospital staff can control the dropping speed of the injection device 1001 of the injection set 1000 through the operation of the control unit F.

[0022] As shown in FIG. 3, the adjusting device C is a cam set 6', the base is a fixed member 60', and the movable member is a rotating cam 61' that is rotatable with respect to the fixed member 60'. The rotating cam 61' includes a shaft 610' and a cam body 611'. The shaft 610' is disposed on the side surface of the upper injection tube 2. The cam body 611' is eccentrically attached to the shaft 610'. The cam body 611' presses the wall of the upper injection tube 2 through the rotation of the cam body 611' with respect to the fixed member 60' so as to change the cross-section of the upper injection tube 2.

[0023] As shown in FIG. 4, the adjusting device C is a cam set 6'', and the big difference between the cam set 6'' shown in FIG. 4 and the cam set 6' shown in FIG. 3 is that the base of the cam set 6'' is a fixed cam 62 instead of a fixed member.

[0024] As shown in FIG. 5, the adjustment device C is a cylinder set 6''', the base is a holding member 60'', and the movable member is a cylinder device 61''. The cylinder device 61'' includes a cylinder housing 610'' and a cylinder head 611''. The cylinder housing 610'' is disposed on the side surface of the upper injection pipe 2. The cylinder head 611'' is telescopic with respect to the cylinder housing 610''. The cylinder head 611'' presses the wall of the upper injection pipe 2 through the cylinder head 611'' extending from the cylinder housing 610'' so as to change the cross section of the upper injection pipe 2.

[0025] Please refer to FIGS. 1, 6, and 7. FIG. 6 is a schematic diagram illustrating a part of the injection device 1001 in a non-interrupted state according to the first embodiment of the present disclosure. FIG. 7 is a schematic diagram illustrating a part of the injection device 1001 in an interrupted state according to the first embodiment of the present disclosure. As shown in FIGS. 1, 6, and 7, the injection set 1000 further includes a first detection module 7. The first detection module 7 is disposed beside the syringe body 1 and includes a first light emitting unit 70 and a first light receiving unit 71. The first light emitting unit 70 is disposed on the side surface of the syringe body 1. The first light emitting unit 70 emits light 73 to the syringe body 1 in a first optical path L1 passing through the first dropping path D1. Along the first dropping path D1, the injection agent 2000 drops from the injection member 3000 into the internal chamber 10 of the syringe body 1. The first light receiving unit 71 is disposed on another side surface of the syringe body 1. In the present disclosure, the first detection module 7 may be an infrared sensor module, but the present disclosure is not limited thereto.

[0026] As shown in FIG. 6, when the drop 9 of the injection agent 2000 in the first dropping path D1 does not interrupt the light 73 in the first optical path L1, the light 73 is not refracted by the drop 9, and since the light 73 passes through the first optical path L1, the first light receiving unit 71 receives the light 73 emitted from the first light emitting unit 70 and generates a first light intensity signal accordingly. As shown in FIG. 7, when the drop 9 of the injection agent 2000 in the first dropping path D1 interrupts the light 73 in the first optical path L1, the light 73 is refracted from the first optical path L1 by the drop 9, so the first light receiving unit 71 does not receive the light 73 emitted from the first light emitting unit 70 and generates a second light intensity signal accordingly.

[0027] Furthermore, the first detection module 7 is coupled to the control unit F such that the control unit F processes the first light intensity signal and / or the second light intensity signal to provide a count of the drops 9. For example, the control unit F provides one count of the drops 9 according to the received first light intensity signal or second light intensity signal. Alternatively, the control unit F also provides one count of the drops 9 according to the combination of the first light intensity signal and the second light intensity signal. In other words, the first light intensity signal, the second light intensity signal, or a combination thereof becomes one count of the drops 9 of the injection agent 2000 in the first dropping path D1.

[0028] As shown in FIGS. 6 and 7, the syringe body 1 includes a main portion 11 and an auxiliary portion 12 connected to the main portion 11. An internal chamber 10 is formed in the main portion 11, and the first detection module 7 is disposed beside the main portion 11. The auxiliary portion 12 has a liquid storage space 13 formed therein. The liquid storage space 13 communicates with the internal chamber 10 such that the injection agent 2000 in the internal chamber 10 is dropped into the liquid storage space 13.

[0029] Although an injection set 1000 in which a first detection module 7 is arranged beside a main part 11 of a syringe body 1 is illustrated as one embodiment in this specification, it should be noted that the present disclosure is not limited thereto. For example, in a second embodiment, the injection set 1000 includes a second detection module 8 arranged beside an auxiliary part 12. The second detection module 8 includes a second light emitting unit 80 and a second light receiving unit 81. The second light emitting unit 80 is arranged on a side surface of the auxiliary part 12. The second light emitting unit 80 emits light 83 to the auxiliary part 12 in a second optical path L2 passing through a second dropping path D2, and along the second dropping path D2, the injection agent drops from an internal chamber 10 of the main part 11 to a liquid storage space 13 of the auxiliary part 12. The second light receiving unit 81 is arranged on another side surface of the auxiliary part 12.

[0030] As shown in FIG. 6, when a drop 9' of the injection agent 2000 in the second dropping path D2 does not interrupt the light 83 in the second optical path L2, the light 83 is not refracted by the drop 9', and since the light 83 passes through the second optical path L2, the second light receiving unit 81 receives the light 83 emitted from the second light emitting unit 80 and generates a third light intensity signal accordingly. As shown in FIG. 7, when a drop 9' of the injection agent 2000 in the second dropping path D2 interrupts the light 83 in the second optical path L2, the light 83 is refracted from the second optical path L2 by the drop 9', so the second light receiving unit 81 does not receive the light 83 emitted from the second light emitting unit 80 and generates a fourth light intensity signal accordingly.

[0031] Similarly, the control unit F is coupled to the second detection module 8 such that the control unit F processes the third light intensity signal and / or the fourth light intensity signal to provide a count of the drop 9'. For example, the control unit F provides one count of the drop 9' according to the received third light intensity signal or the fourth light intensity signal. Alternatively, the control unit F also provides one count of the drop 9' according to the combination of the third light intensity signal and the fourth light intensity signal. In other words, the third light intensity signal, the fourth light intensity signal, or a combination thereof becomes one count of the drop 9' of the injection agent 2000 in the second dropping path D2.

[0032] In summary, the dropping speed of the infusion set 1000 can be controlled by the adjusting device C in a manner of rotation of the rotary button 61, rotation of the rotary cam 61', or expansion and contraction of the cylinder head 611''. Further, the infusion set 1000 includes a detection module such as the first detection module 7 for detecting the count of the drop 9 to the main part 11 of the syringe body 1 and / or the count of the drop 9' to the auxiliary part 12 of the syringe body 1, and a control unit F coupled to the operating module E and the first detection module 7 and / or the second detection module 8. In such a manner, the control unit F of the system 9000 can control the operating module E to operate the operating module E to drive the adjusting device C in a manner of rotation of the rotary button 61, rotation of the rotary cam 61', or expansion and contraction of the cylinder head 611'' based on the count of the drop 9 to the main part 11 of the syringe body 1 and / or the count of the drop 9' to the auxiliary part 12 of the syringe body 1.

[0033] Please refer to FIGS. 8 and 9. FIG. 8 is a schematic diagram illustrating a part of the injection device 1001' in a non-interrupted state according to the third embodiment of the present disclosure. FIG. 9 is a schematic diagram illustrating a part of the injection device 1001' in an interrupted state according to the third embodiment of the present disclosure. A major difference between the injection device 1001' and the injection device 1001 is that the first detection module 7' further includes a first auxiliary light receiving unit 72, and the first auxiliary light receiving unit 72 is disposed beside the first light receiving unit 71.

[0034] Refer also to FIG. 10. FIG. 10 is a schematic diagram illustrating a first set of processing signals A generated by the first detection module 7' and a second set of processing signals B generated by the first auxiliary light receiving unit 72 according to the third embodiment of the present disclosure. As shown in FIGS. 8 and 10, when the droplet 9 of the injection agent 2000 in the first droplet path D1 does not interrupt the light 73 in the first optical path L1, the light 73 is not refracted by the droplet 9 and passes through the first optical path L1. Therefore, the first light receiving unit 71 receives the light 73 emitted from the first light emitting unit 70 and generates a first light intensity signal a1 accordingly. On the other hand, the first auxiliary light receiving unit 72 does not receive the light 73 and generates a second auxiliary light intensity signal b2 accordingly.

[0035] As shown in FIGS. 9 and 10, when the droplet 9 of the injection agent 2000 in the first droplet path D1 interrupts the light 73 in the first optical path L1, the light 73 is refracted from the first optical path L1 by the droplet 9. Therefore, the first light receiving unit 71 does not receive the light 73 emitted from the first light emitting unit 70 and generates a second light intensity signal a2 accordingly. On the other hand, the first auxiliary light receiving unit 72 receives the light 73 refracted by the droplet 9 and generates a first auxiliary light intensity signal b1 accordingly.

[0036] Furthermore, the first detection module 7' is coupled to the control unit F such that the control unit F processes the first set of processing signals A and the second set of processing signals B to provide a count of the droplets 9. For example, the simultaneous occurrence of the second light intensity signal a2 of the first set of processing signals A and the first auxiliary light intensity signal b1 of the second set of processing signals B constitutes one count of the droplet 9 of the injection agent 2000 in the first droplet path D1.

[0037] Furthermore, referring to FIG. 11, FIG. 11 is a first plot DW1 of the count per angle per period according to the third embodiment of the present disclosure. As described above, the present disclosure utilizes the adjustment device C to control the dropping speed of the injection agent 2000, and the present disclosure further utilizes the first detection module 7' to monitor the count of the drops 9 of the injection agent 2000 in the first dropping path D1. As a result, a plot as shown in FIG. 11 can be constructed, and this plot exemplifies the angle at which the movable member C1 rotates versus the count of the drops 9 of the injection agent 2000 in the first dropping path D1 so as to provide additional information to the hospital staff when controlling the dropping speed of the injection device 1001' of the infusion set 1000 through the operation of the control unit F.

[0038] Please refer to FIGS. 12 and 13. FIG. 12 is a schematic diagram exemplifying a part of the injection device 1001' in the non-interrupted state according to the fourth embodiment of the present disclosure. FIG. 13 is a schematic diagram exemplifying a part of the injection device 1001' in the interrupted state according to the fourth embodiment of the present disclosure. A major difference between the injection device 1001' and the injection device 1001 is that the second detection module 8' further includes a second auxiliary light receiving unit 82, and the second auxiliary light receiving unit 82 is arranged beside the second light receiving unit 81.

[0039] As shown in FIG. 12, when the drop 9' of the injection agent 2000 in the second dropping path D2 does not interrupt the light 83 in the second light path L2, the light 83 is not refracted by the drop 9', and the light 83 passes through the second light path L2. Therefore, the second light receiving unit 81 receives the light 83 emitted from the second light emitting unit 80 and generates a third light intensity signal accordingly. On the other hand, the second auxiliary light receiving unit 82 does not receive the light 83 and generates a fourth auxiliary light intensity signal accordingly.

[0040] As shown in FIG. 13, when the drop 9' of the injection agent 2000 in the second dropping path D2 interrupts the light 83 in the second light path L2, the light 83 is refracted from the second light path L2 by the drop 9'. Therefore, the second light receiving unit 81 does not receive the light 83 emitted from the second light emitting unit 80, and accordingly generates a fourth light intensity signal. On the other hand, the second auxiliary light receiving unit 82 receives the light 83 refracted by the drop 9' and generates a third auxiliary light intensity signal accordingly.

[0041] Furthermore, in order for the control unit F to provide a count of the drop 9', the second detection unit 8' is coupled to the control unit F so as to process a third set of processing signals including the third light intensity signal and the fourth light intensity signal and a second set of processing signals. For example, the simultaneous occurrence of the fourth light intensity signal of the third set of processing signals and the second auxiliary light intensity signal of the fourth set of processing signals constitutes one count of the drop 9' of the injection agent 2000 in the second dropping path D2.

[0042] Furthermore, referring to FIG. 14, FIG. 14 is a second plot DW2 of the count per angle versus period according to the fourth embodiment of the present disclosure. As described above, the present disclosure utilizes the adjustment device C to control the dropping speed of the injection agent 2000, and the present disclosure further utilizes the second detection module 8' to monitor the count of the drop 9' of the injection agent 2000 in the second dropping path D2. As a result, a plot as shown in FIG. 14 can be constructed, and this plot shows the angle at which the movable member C1 rotates versus the count of the drop 9' of the injection agent 2000 in the second dropping path D2 so as to provide additional information to the hospital staff when controlling the dropping speed of the injection device 1001'' of the injection set 1000 through the operation of the control unit F.

[0043] Compared with the prior art, the injection set of the system for detecting and controlling the dropping speed of the injection device of the present disclosure includes an operating unit, and the operating unit is coupled to the movable member of the adjusting device and cooperates with the base to deform at least one wall of the upper injection tube, the lower injection tube, and the air tube. The movable member is driven to move relative to the base. In such a manner, the dropping speed of the injection can be automatically adjusted by the operating module.

[0044] Those skilled in the art will readily recognize that numerous modifications and changes may be made to the apparatus and methods while remaining within the teachings of the present invention. Accordingly, the above disclosure should be construed as being limited only by the appended claims.

Claims

1. A syringe body having an internal chamber formed therein and configured to contain an injection agent, an upper injection tube that connects a side surface of the syringe body to an injection member, and through which the injection agent drips from the injection member into the internal chamber of the syringe body, a lower injection tube connected to another side surface of the syringe body and configured to be connected to one of the limbs, and an air tube connected to a side surface of the syringe body and configured to enable the injection agent contained in the internal chamber of the syringe body to be injected into one of the limbs through the lower injection tube, an injection device including the above, a base disposed on a side surface of at least one of the upper injection tube, the lower injection tube, and the air tube, and a movable member disposed on another side surface of the at least one of the upper injection tube, the lower injection tube, and the air tube, the movable member being movable relative to the base so as to cooperate with the base to deform a wall of the at least one of the upper injection tube, the lower injection tube, and the air tube, an adjustment device attached to at least one of the upper injection tube, the lower injection tube, and the air tube, including the above, an injection set having the ability to automatically control the amount of injection agent injected into one of the limbs, including the above, wherein the adjustment device is a button set, the base is an attachment member, and the movable member is a rotary button rotatable relative to the attachment member, the attachment member having a channel formed therethrough for attachment to at least one of the upper injection tube, the lower injection tube, and the air tube, the rotary button including a button body attached to the attachment member in a rotatable manner, and a pair of tabs protruding from the button body and rotatable with the button body about a horizontal rotation axis, the pair of tabs engaging at least one of the upper injection tube, the lower injection tube, and the air tube so as to cooperate with the attachment member to twist a wall of at least one of the upper injection tube, the lower injection tube, and the air tube through rotation of the button body relative to the attachment member, including the above, the injection set is A first light-emitting unit disposed on a side surface of the syringe body, the first light-emitting unit emitting light to the syringe body in a first optical path passing through a first dropping path, and along the first dropping path, the injection agent drops from the injection member into an internal chamber of the syringe body, the first light-emitting unit, and A first light-receiving unit disposed on another side surface of the syringe body, Including a first detection module configured to be disposed beside the syringe body and detect the count of the injection agent dropping from the injection member into the internal chamber of the syringe body, An operating unit coupled to a movable member of the adjusting device, A control unit coupled to the operating unit and the first detection module, the control unit controlling the operating unit to drive the movable member to move relative to the base based on the count of the dropping of the injection agent from the injection member into the internal chamber of the syringe body, Further including, The first detection module includes, A first auxiliary light-receiving unit disposed beside the first light-receiving unit Further including, When the dropping of the injection agent in the first dropping path does not interrupt the light in the first optical path, the first light-receiving unit receives the light emitted from the first light-emitting unit and generates a first light intensity signal, When the dropping of the injection agent in the first dropping path interrupts the light in the first optical path, the first light-receiving unit does not receive the light emitted from the first light-emitting unit and generates a second light intensity signal. Further, the first auxiliary light-receiving unit receives the light emitted from the first light-emitting unit and refracted by the dropping and generates a first auxiliary light intensity signal, The simultaneous occurrence of the second light intensity signal and the first auxiliary light intensity signal is one count of the dropping of the injection agent in the first dropping path, The first light-emitting unit, the first light-receiving unit, and the first auxiliary light-receiving unit are disposed adjacent to the upper part of the syringe body, the infusion set.

2. The syringe body includes a main part and an auxiliary part connected to the main part. The internal chamber is formed in the main part. The auxiliary part has a liquid storage space formed therein. The liquid storage space communicates with the internal chamber such that the injectant in the internal chamber drips into the liquid storage space. The infusion set further includes a second detection module disposed beside the auxiliary part. The second detection module is a second light emitting unit disposed on a side surface of the auxiliary part. The second light emitting unit emits light to the auxiliary part in a second optical path passing through a second dripping path. Along the second dripping path, the injectant drips from the internal chamber of the main part into the liquid storage space of the auxiliary part, and the second light emitting unit a second light receiving unit disposed on another side surface of the auxiliary part, and includes. When the dripping of the injectant in the second dripping path does not interrupt the light in the second optical path, the second light receiving unit receives the light emitted from the second light emitting unit and generates a third light intensity signal. When the dripping of the injectant in the second dripping path interrupts the light in the second optical path, the second light receiving unit does not receive the light emitted from the second light emitting unit and generates a fourth light intensity signal. The infusion set according to claim 1, wherein the third light intensity signal, the fourth light intensity signal, or a combination thereof constitutes one count of the dripping of the injectant in the second dripping path. **Claim 3** The syringe body includes a main part and an auxiliary part connected to the main part. The internal chamber is formed in the main part. The auxiliary part has a liquid storage space formed therein. The liquid storage space communicates with the internal chamber such that the injectant in the internal chamber drips into the liquid storage space. The infusion set further includes a second detection module disposed beside the auxiliary part. The second detection module is A second light-emitting unit disposed on a side surface of the auxiliary portion, wherein the second light-emitting unit emits light to the auxiliary portion in a second optical path passing through a second dropping path, and along the second dropping path, the injection agent drops from an internal chamber of the main portion to a liquid storage space of the auxiliary portion; a second light-emitting unit A second light-receiving unit disposed on another side surface of the auxiliary portion; A second auxiliary light-receiving unit disposed beside the second light-receiving unit comprising When the dropping of the injection agent in the second dropping path does not interrupt the light in the second optical path, the second light-receiving unit receives the light emitted from the second light-emitting unit and generates a third light intensity signal. When the dropping of the injection agent in the second dropping path interrupts the light in the second optical path, the second light-receiving unit does not receive the light emitted from the second light-emitting unit and generates a fourth light intensity signal. Further, the second auxiliary light-receiving unit receives the light emitted from the second light-emitting unit and refracted by the dropping and generates a second auxiliary light intensity signal. The infusion set according to claim 1, wherein the simultaneous occurrence of the fourth light intensity signal and the second auxiliary light intensity signal is counted as one count of the dropping of the injection agent in the second dropping path.

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