Medical balloon perfusion system and medical system

Abstract

The present invention provides a medical balloon perfusion system and a medical system. The medical balloon perfusion system comprises a first assembly and a second assembly that are detachably connected. The first assembly comprises a medium storage portion and an execution unit that are connected to each other. The medium storage portion is provided with an inner cavity, and the inner cavity at least partially constitutes a medium storage space. The second assembly comprises an electrical signal acquisition unit, a driving unit, and a control unit. The electrical signal acquisition unit is configured for acquiring a first target signal related to the first assembly. The driving unit is in transmission connection with and is detachably connected to the execution unit. The control unit is configured for controlling the operation of the driving unit according to the first target signal, and driving the execution unit to move relative to the medium storage portion so as to change the volume of the medium storage space. The medical balloon perfusion system can be used for inflating and depressurizing a balloon of a balloon catheter, and the first assembly is used as a consumable. When the consumable is replaced, the replacement of a relatively expensive electrical element is not involved, and the use cost of the device can be effectively reduced.

Description

A medical balloon infusion system and a medical system Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a medical balloon infusion system and a medical system. Background Technology

[0002] Percutaneous coronary intervention (PCI) is mainly used to treat obstructive coronary artery disease and has developed rapidly due to its advantages of being minimally invasive, time-saving, safe, and efficient. However, in some cases, coronary artery blockage may lead to abnormalities in the coronary microcirculation system, which in turn can cause a portion of the myocardium to enter a dormant, apparent dead, or even dead state, triggering a severe acute myocardial infarction.

[0003] Coronary microcirculatory abnormalities cannot be treated with conventional PCI surgery. Current conventional treatments involve blocking blood flow to the coronary sinus, increasing vascular pressure, and forcing blood back into the microcirculation system. The increased pressure also acts as a flushing agent. The primary device for this treatment is the coronary sinus microcirculation perfusion system, which includes a pressurizing device and a balloon catheter. The balloon is inserted into the coronary sinus, and the device repeatedly inflates and depressurizes the balloon to intermittently block the sinus, achieving the effect of blood reflux and flushing.

[0004] Existing coronary sinus microcirculation perfusion systems utilize pressurization equipment consisting of reusable air pumps and cylinders. The cleanliness of the air pump and the wear and tear on the cylinders are significant design considerations. For reusable equipment, maintaining hygiene requires periodic disassembly for cleaning and sterilization; otherwise, if the balloon ruptures inside the body, residual dust and bacteria will enter the body. To improve reusability and simplify enclosure, separating at least partially maintainable components and disposing of them as disposable consumables is a common approach. To maintain effective coordination between the reusable equipment and the separated consumables, most control units must be partially integrated into the consumables for monitoring. However, integrating control components into the consumables increases their cost, and frequent replacements continuously challenge the reliability of the interfaces between the control components on the consumables and those on the equipment. Summary of the Invention

[0005] The purpose of this invention is to provide a medical balloon infusion system and a medical system that aims to reduce the cost of replaceable consumables while maintaining the overall control reliability of the device.

[0006] To achieve the above objectives, the present invention provides a medical balloon infusion system, comprising a first component and a second component detachably connected; wherein:

[0007] The first component includes a media storage unit and an execution unit connected to each other; the media storage unit has an inner cavity, at least a portion of which constitutes a storage space;

[0008] The second component includes an electrical signal acquisition unit, a drive unit, and a control unit; the electrical signal acquisition unit is configured to acquire a first target signal related to the first component; the drive unit is tractably and detachably connected to the execution unit to achieve a detachable connection between the second component and the first component; the control unit is connected to the electrical signal acquisition unit and the drive unit, and is configured to control the operation of the drive unit according to the first target signal to drive the execution unit to move relative to the media storage section and change the volume of the media storage space.

[0009] Optionally, the first target signal includes a first position signal; the control unit is configured to control the drive unit to operate and drive the execution unit to move relative to the medium storage unit when the electrical signal acquisition unit acquires the first position signal;

[0010] The first component further includes a first conductive element; the electrical signal acquisition unit includes a connection signal acquisition section, the connection signal acquisition section includes two second conductive elements, the first end of each second conductive element is electrically connected to the control unit, and the second end is capable of contacting the first conductive element; when the second conductive element is separated from the first conductive element, the first component and the second component are separated from each other, and current is prevented from flowing through the connection signal acquisition section and the first conductive element; when the first conductive element is in contact with the second conductive element, the first component is connected to the second component, and current is allowed to flow through the connection signal acquisition section and the first conductive element; the current flowing through the connection signal acquisition section and the first conductive element serves as the first position signal.

[0011] Optionally, there are multiple first conductive elements located on different planes; there are multiple bonding signal acquisition units, and each bonding signal acquisition unit corresponds to one of the multiple first conductive elements.

[0012] When the second conductive element of each of the bonding signal acquisition units is in contact with the corresponding first conductive element, the first component is connected to the second component; when the second conductive element of each of the bonding signal acquisition units is separated from the corresponding first conductive element, the first component is separated from the second component.

[0013] Optionally, the electrical signal acquisition unit is configured to acquire a second target signal related to the second component, the second target signal including a second position signal. When the electrical signal acquisition unit acquires the second position signal, the output terminal of the drive unit is in a predetermined state, and the drive unit is allowed to connect to the execution unit.

[0014] The electrical signal acquisition unit includes a first sensor. When the first sensor receives a monitoring signal emitted by itself, the electrical signal acquisition unit acquires the second position signal.

[0015] Optionally, the drive unit includes an output shaft with a first signal transmission hole; the first sensor is disposed corresponding to the first signal transmission hole and can be aligned with the first signal transmission hole, and when the first sensor is aligned with the first signal transmission hole, the first sensor can receive a monitoring signal emitted by itself.

[0016] Optionally, the first signal transmission hole passes through the output shaft, and the axis of the first signal transmission hole is out of plane with the axis of the output shaft; the first sensor includes a first monitoring signal transmitting part and a first monitoring signal receiving part disposed on opposite sides of the output shaft; or,

[0017] The first sensor is spaced apart from one end face of the output shaft and includes an integral first monitoring signal transmitting part and a first monitoring signal receiving part; the first signal transmission hole is a blind hole provided on the end face of the output shaft facing the first sensor, and the axis of the first signal transmission hole is parallel to the axis of the output shaft; the end face of the output shaft facing the first sensor is a rough surface, and the bottom surface of the first signal transmission hole is a smooth surface.

[0018] Optionally, the execution unit includes a target location; the first target signal includes a third position signal; the medical balloon infusion system is configured such that when the electrical signal acquisition unit acquires the third position signal, the target location is located at a first predetermined position in the media storage section, and the media storage space has a first predetermined volume, and the control unit controls the drive unit to operate and drives the execution unit to move in a direction that reduces the media storage space;

[0019] The electrical signal acquisition unit includes a second sensor. When the second sensor receives a monitoring signal emitted by itself, the electrical signal acquisition unit acquires the third position signal.

[0020] Optionally, the drive unit includes an output shaft with a second signal transmission hole; the second sensor is disposed corresponding to the second signal transmission hole and can be aligned with the second signal output hole, and when the second sensor is aligned with the second signal transmission hole, the second sensor can receive a monitoring signal emitted by itself.

[0021] Optionally, the second signal transmission hole passes through the output shaft, and the axis of the second signal transmission hole is out of plane with the axis of the output shaft; the second sensor includes a second monitoring signal transmitting part and a second monitoring signal receiving part disposed on opposite sides of the output shaft; or,

[0022] The second sensor is spaced apart from one end face of the output shaft and includes an integral second monitoring signal transmitting part and a second monitoring signal receiving part; the second signal transmission hole is a blind hole provided on the end face of the output shaft facing the second sensor, and the axis of the second signal transmission hole is parallel to the axis of the output shaft; the end face of the output shaft facing the second sensor is a rough surface, and the bottom surface of the second signal transmission hole is a smooth surface.

[0023] Optionally, the second sensor is disposed on one side of the medium storage section and arranged corresponding to the first predetermined position;

[0024] The first predetermined location of the medium storage unit is configured to allow the monitoring signal emitted by the second sensor to pass through; the target location is configured to reflect the monitoring signal emitted by the second sensor.

[0025] Optionally, the first target signal further includes a fourth position signal; the medical balloon infusion system is configured such that when the electrical signal acquisition unit acquires the fourth position signal, the target location is located at a second predetermined position of the media storage section, and the media storage space has a second predetermined volume, and the control unit is allowed to control the drive unit to operate and drive the execution unit to move in a direction that increases the media storage space; the second predetermined volume is smaller than the first predetermined volume, and the difference between the first predetermined volume and the second predetermined volume is a preset value;

[0026] The electrical signal acquisition unit includes a third sensor. When the third sensor receives a monitoring signal emitted by itself, the electrical signal acquisition unit acquires the fourth position signal.

[0027] To achieve the above objectives, the present invention also provides a medical system, including a balloon catheter and a medical balloon infusion system as described above; the balloon catheter includes a catheter mechanism and a balloon, the balloon being sealed to the distal outer peripheral surface of the catheter mechanism, the catheter mechanism having a medium channel extending axially thereon and communicating with the balloon; the medium storage portion is connected to the proximal end of the catheter mechanism and communicates with the medium channel.

[0028] Compared with the prior art, the medical balloon infusion system and medical system of the present invention have the following advantages:

[0029] The aforementioned medical balloon infusion system includes a first component and a second component detachably connected; the first component includes a media storage section and an execution unit interconnected, the media storage section having an inner cavity that at least partially constitutes a media storage space; the second component includes an electrical signal acquisition unit, a drive unit, and a control unit; the electrical signal acquisition unit is configured to acquire a first target signal related to the first component; the drive unit is detachably connected to and driven by the execution unit to achieve the connection between the second component and the first component; the control unit is connected to the electrical signal acquisition unit and the drive unit, and is configured to control the operation of the drive unit according to the first target signal, and drive the execution unit to move relative to the media storage section to change the volume of the media storage space. This medical balloon infusion system can be used to inflate and depressurize the balloon of a balloon catheter. The first component is a replaceable consumable. Since the electrical signal acquisition unit is integrated into the second component and not located on the first component, which is a consumable, replacing the consumable does not involve replacing expensive electrical components, which can effectively reduce the operating cost of the equipment. In addition, it avoids the problems of disassembling and reinstalling the interfaces of electrical components caused by replacing consumables, thus avoiding the problem of electrical component interfaces failing due to repeated disassembly and installation. Attached Figure Description

[0030] The accompanying drawings are provided to better understand the invention and are not intended to unduly limit the scope of the invention. Wherein:

[0031] Figure 1 is a schematic diagram of the framework of a medical balloon infusion system according to an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of the connection between the medical balloon infusion system and the balloon catheter according to an embodiment of the present invention;

[0033] Figure 3 is a partial structural schematic diagram of a medical balloon infusion system provided according to an embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of the structure of the first component of the medical balloon infusion system provided according to an embodiment of the present invention when connected to the balloon catheter;

[0035] Figure 5 is a schematic diagram of the first component and the second component of the medical balloon infusion system provided according to an embodiment of the present invention when they are engaged. The figure shows two first conductive elements and a junction signal acquisition unit.

[0036] Figure 6 is a partial structural schematic diagram of the second component of the medical balloon infusion system provided by the present invention according to an embodiment. The axes of the first signal transmission hole and the second signal transmission hole in the figure are both out of plane from the axis of the output shaft.

[0037] Figure 7 is a partial structural schematic diagram of the second component of the medical balloon infusion system provided by the present invention according to an embodiment. The axes of the first signal transmission hole and the second signal transmission hole in the figure are both parallel to the axis of the output shaft.

[0038] Figure 8 is a partial structural schematic diagram of a medical balloon infusion system provided according to an embodiment of the present invention. The part shown in Figure 8 is different from that in Figure 3.

[0039] Reference numerals: 10-Balloon infusion system, 100-First component, 110-Media storage section, 111-Inner cavity, 112-Media storage space, 113-Connection hole, 120-Actuation unit, 121-Pushing part, 122-Piston rod, 123-Transmission mechanism, 1231-Input shaft, 12311-Second connection part, 1232-Gear, 1233-Rack, 130-First housing, 140-First conductive element, 200-Second component, 210-Electrical signal acquisition unit, 211-Second conductive element, 212 - First sensor, 2121- First signal transmitter, 2122- First signal receiver, 213- Second sensor, 2131- Second signal transmitter, 2132- Second signal receiver, 220- Drive unit, 221- Motor, 222- Reducer, 223- Output shaft, 2231- First joint, 2232- First signal transmission hole, 2233- Second signal transmission hole, 230- Control unit, 240- Second housing, 20- Balloon catheter, 300- Balloon, 400- Catheter mechanism. Detailed Implementation

[0040] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the actual number, shape, and size of components in the actual implementation. In the actual implementation, the type, quantity, and proportion of each component can be arbitrarily changed, and the component layout may also be more complex.

[0041] Furthermore, while each embodiment described below possesses one or more technical features, this does not imply that users of the present invention must simultaneously implement all technical features in any embodiment, or can only separately implement some or all technical features in different embodiments. In other words, provided it is feasible, those skilled in the art can, based on the disclosure of the present invention and depending on design specifications or implementation requirements, selectively implement some or all technical features in any embodiment, or selectively implement a combination of some or all technical features in multiple embodiments, thereby increasing the flexibility in implementing the present invention.

[0042] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “multiple” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “installed,” “connected,” and “linked” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be mechanical or electrical. Connections can be direct or indirect through an intermediate medium, and can be internal communication between two elements or an interaction between two elements. Relational terms such as “first,” “second,” etc., are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor do they indicate or imply relative importance or implicitly specify the number of indicated technical features. It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0043] The terms “proximal” and “distal” used in this article are based on the relative positions and orientations of the various parts and components of a medical device. Although they are not restrictive, “distal” usually refers to the end of the medical device that is closer to the patient during normal use, while “proximal” refers to the end that is further away from the patient.

[0044] To make the objectives, advantages, and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the objectives of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0045] Figure 1 is a schematic diagram of the framework of a medical balloon infusion device 10 provided in some embodiments of the present invention, and Figure 2 is a schematic diagram of the medical balloon infusion system 10 and the balloon catheter 20 used to form a medical system. As shown in Figures 1 and 2, the medical balloon infusion system 10 includes a first component 100 and a second component 200. The first component 100 includes a media storage unit 110 and an execution unit 120. The second component 200 includes an electrical signal acquisition unit 210, a drive unit 220, and a control unit 230.

[0046] The media storage unit 110 has an inner cavity 111, which at least partially constitutes a media storage space 112. The execution unit 120 is connected to the media storage unit 110. The electrical signal acquisition unit 210 is used to acquire a first target signal related to the first component 100. The drive unit 220 is driven and detachably connected to the execution unit 120 to realize a detachable connection between the second component 200 and the first component 100. The control unit 230 is connected to the electrical signal acquisition element 210 and the drive unit 220, and is configured to control the operation of the drive unit 220 according to the first target signal, thereby driving the execution unit 120 to move relative to the media storage unit 110 to change the volume of the media storage space 112.

[0047] Those skilled in the art will understand that the balloon catheter 20 includes a balloon 300 and a catheter mechanism 400. The balloon 300 is sealed to the distal outer peripheral surface of the catheter mechanism 400, and a media channel (not shown in the figure) communicating with the balloon 300 is formed on the catheter mechanism 400. The proximal end of the catheter mechanism 400 is connected to the media storage section 110, and the media channel also communicates with the media storage space 112. When the execution unit 120 moves relative to the media storage section 110 under the drive unit 220, thereby reducing the volume of the media storage space 112, the media stored in the media storage space 112 is pushed and enters the balloon 300 along the media channel, causing the balloon 300 to inflate. When the execution unit 120 moves relative to the media storage section 110 under the drive unit 220, thereby increasing the volume of the media storage space 112, the media located in the balloon 300 is drawn back into the media storage space 112 via the media channel, causing the balloon 300 to depressurize. That is, the medical balloon infusion system 10 can be used to inflate or depressurize the balloon 300.

[0048] The medical system can be used for perfusion of the coronary sinus microcirculation. Specifically, the balloon 300 is inserted into the patient's coronary sinus, and the medical balloon perfusion system 10 repeatedly switches the balloon 300 between inflation and deflation states, so as to intermittently block the coronary sinus with the inflated balloon 300, causing the blood flow in the coronary sinus to backflow and flush the coronary veins.

[0049] In the medical balloon perfusion system 10 provided in this embodiment of the invention, all control components (i.e., the control unit 230) and electrical components for acquiring electrical signals (i.e., the electrical signal acquisition unit 210) are disposed on the second component 200. The first component 100 does not involve any expensive electrical or control components. Thus, when the first component 100 is used as a replaceable consumable, the price of consumables is greatly reduced. Moreover, when replacing the first component 100, there is no need to disassemble or reassemble electrical or control components, avoiding failure problems caused by repeated disassembly and reassembly of the interfaces of electrical and control components.

[0050] Since the first component 100 and the second component 200 are detachably connected, the drive unit 220 can only drive the execution unit 120 to move relative to the medium storage section 110 to inflate or depressurize the balloon 300 when the first component 100 and the second component 200 are in a transmission connection. Therefore, the first target signal includes a first position signal characterizing the connection between the first component 100 and the second component 200.

[0051] It is understandable that in actual surgical scenarios, the operator determines the inflation pressure of the balloon 300 based on the patient's actual condition, and thus determines the volume of medium pushed into the balloon 300. For ease of description, the determined inflation pressure value is referred to as the first preset value, and the determined volume of medium pushed into the balloon 300 is referred to as the second preset value. To ensure that the medical balloon infusion system 10 can provide sufficient medium so that the inflation pressure of the balloon 300 can reach the first preset value, the volume of medium stored in the medium storage section 110 should be greater than or equal to the first preset value when the balloon 300 is in a depressurized state. Correspondingly, when the balloon 300 is in a depressurized state, the volume of the medium storage space 112 should be greater than or equal to the first preset value. In this document, the volume of the medium storage space 112 when the balloon 300 is in a depressurized state is referred to as the first predetermined volume, and the first predetermined volume is greater than or equal to the first preset value. Therefore, the first target signal also includes a third position signal characterizing the medium storage space 112 when it has the first predetermined volume.

[0052] In a further embodiment, the first target signal may also include other position signals, such as a fourth position signal as described below.

[0053] The specific configuration of the medical balloon infusion system 10 will be further described below. It should be noted that the following description is based only on an optional embodiment of the medical balloon infusion device 10 and should not be construed as unduly limiting the present invention.

[0054] Optionally, as shown in Figure 2, the drive unit 220 includes a motor 221, a reducer 222, and an output shaft 223 connected in sequence. The output shaft 223 constitutes the output end of the drive unit 220 and is used for transmission and detachable connection with the execution unit 120. In practice, the output shaft 223 can be a coupling.

[0055] Referring to Figures 2 and 3, the media storage unit 110 is a hollow structure with an inner cavity 111. The media storage unit 110 also has a connection hole 113, which communicates with the inner cavity 111 and is used to connect with the balloon catheter 20. The execution unit 120 includes a pushing part 121, a piston rod 122, and a transmission mechanism 123. The pushing part 121 is disposed within the inner cavity 111 and connected to the cavity wall of the inner cavity 111, and is capable of axial movement along the connection hole 113 to approach or move away from the connection hole 113. The surface of the pushing part 121 near the connection hole 113, together with the inner wall of the media storage unit 110, defines the media storage space 112. The piston rod 122 extends axially along the engagement hole 113, with one end of the piston rod 122 near the engagement hole 113 connected to the push portion 121, and the other end of the piston rod 122 away from the engagement hole 113 extending to the outside of the media storage portion 110. The transmission mechanism 123 includes an input shaft 1231, a gear 1232, and a rack 1233. The input shaft 1231 is detachably connected to the output end of the drive unit 220 (i.e., the output shaft 223). The gear 1232 is sleeved on the input shaft 1231 and remains axially stationary relative to the input shaft 1231. The rack 1233 is disposed on the piston rod 122 and extends axially along the engagement hole 113, meshing with the gear 1232.

[0056] In a preferred embodiment, a first engagement portion 2231 is formed at the end of the output shaft 223 away from the reducer 222, and a second engagement portion 12311 is provided on the input end of the input shaft 1231. One of the second engagement portion 12311 and the first engagement portion 2231 is an engagement groove, and the other is an engagement protrusion. The engagement protrusion and the engagement groove are connected in a pluggable manner. That is, when the engagement protrusion is at least partially inserted into the engagement groove, and the output shaft 223 and the input shaft 1231 remain relatively stationary, the execution unit 120 is connected to the drive unit 220. When the engagement protrusion is pulled out of the engagement groove and is completely outside the engagement groove, the execution unit 120 is disconnected from the drive unit 220.

[0057] It is understood that the cross-section of the engagement protrusion is non-circular, such as triangular, quadrilateral, pentagonal, hexagonal, etc., and the shape of the cross-section of the engagement groove matches the shape of the cross-section of the engagement protrusion.

[0058] Further, the first component 100 may also include a first housing 130, with the media storage unit 110 at least partially disposed within the first housing 130, and the execution unit 120 also at least partially disposed within the first housing 130. The second component 200 may also include a second housing 240, with the electrical signal acquisition unit 210 at least partially disposed within the second housing 240, the control unit 230 at least partially disposed within the second housing 240, and the drive unit 220 at least partially disposed within the second housing 240. In some embodiments, when the first engagement portion 2231 is the engagement protrusion and the second engagement portion 12311 is the engagement groove, it is preferable that the entire execution unit 120 is located within the first housing 130, while the first engagement portion 2231 is located outside the second housing 240.

[0059] Optionally, referring to Figures 3 and 4, the electrical signal acquisition unit 210 includes a connection signal acquisition section (not labeled in the figures). The connection signal acquisition section includes two second conductive members 211. One end of each second conductive member 211 is electrically connected to the control unit 230, and the other end extends to the outside of the second housing 240 and is used to contact the first conductive member 140. For ease of description, the end of the second conductive member 211 used to contact the first conductive member 140 is referred to as the free end. The first component 100 also includes a first conductive member 140, which can be disposed in any suitable position, for example, on the first housing 130. The medical balloon infusion system 10 is configured such that when the execution unit 120 and the drive unit 220 are connected, the first conductive element 140 contacts the free end of the second conductive element 211, thereby forming a closed loop between the control unit 230, the engagement signal acquisition unit, and the first conductive element 140; and when the execution unit 120 and the drive unit 220 are disconnected, the first conductive element 140 separates, thereby forming an open circuit between the control unit 230, the engagement signal acquisition unit, and the first conductive element 140. Conversely, when the first conductive element 140 contacts the free end of the second conductive element 211, thereby forming a closed loop between the control unit 230, the engagement signal acquisition unit, and the first conductive element 140, the execution unit 120 is connected to the drive unit 220; and when the first conductive element 140 separates from the free end of the second conductive element 211, thereby forming an open circuit between the control unit 230, the engagement signal acquisition unit, and the first conductive element 140, the execution unit 120 is disconnected from the drive unit 220.

[0060] In other words, the connection or disconnection of the circuit formed by the control unit 230, the engagement signal acquisition unit, and the first conductive element 140 can be used to determine whether the execution unit 120 is connected or disconnected from the drive unit 220. It can be understood that when the circuit formed by the control unit 230, the engagement signal acquisition unit, and the first conductive element 140 forms a closed loop, current flows through the engagement signal acquisition unit and the first conductive element 140; conversely, when the circuit is disconnected, no current flows through the engagement signal acquisition unit and the first conductive element 140. Therefore, the current signal flowing through the engagement signal acquisition unit and the first conductive element 140 can serve as the first position signal.

[0061] It is understood that the second conductive element 211 should have a certain degree of hardness and be not easily bent. The first conductive element 140 is generally made of metal and can have any suitable shape and size.

[0062] In a preferred embodiment, both the number of engagement signal acquisition units and the number of first conductive elements 140 are multiple. Multiple first conductive elements 140 can be disposed on the first housing 130 and located on different planes. Each of the multiple first conductive elements 140 corresponds one-to-one with a multiple engagement signal acquisition unit, such that the free end of the second conductive element 211 of each engagement signal acquisition unit is used to contact one of the first conductive elements 140. When the engagement protrusion is inserted into the engagement groove to a predetermined depth so that the execution unit 120 is connected to the drive unit 220, the second conductive element 211 of each engagement signal acquisition unit contacts the corresponding first conductive element 140. When the engagement protrusion is pulled out of the engagement groove and is completely outside the engagement groove, the second conductive element 211 of each engagement signal acquisition unit separates from the corresponding first conductive element 140. This arrangement is because when the execution unit 120 and the drive unit 220 are disconnected, the drive unit 220 should stop operating. The engagement protrusion has a certain length in its axial direction, and the engagement groove has a certain depth in its axial direction. During the process of separating the execution unit 120 from the drive unit 220, there is a situation where the engagement protrusion, although no longer firmly inserted into the engagement groove, is still partially located within the engagement groove. If the drive unit 220 operates in this case, it may cause a malfunction. By setting multiple first conductive elements 140 and multiple engagement signal acquisition units, and by rationally designing the position of the first conductive elements 140, this problem can be effectively avoided.

[0063] In a specific example, when the piston rod 122 extends horizontally, the gear 1232 is positioned above the rack 1233, and the input shaft 1231 extends horizontally perpendicular to the piston rod 122, the number of the first conductive element 140 can be two. One of the first conductive elements 140 can be disposed on the side of the second housing 230 facing the first component 10, and the other first conductive element 140 can be disposed on the upper or lower surface of the second housing 230. Correspondingly, the number of engagement signal acquisition units is two, and the second conductive element 211 of the engagement signal acquisition unit extends along the extending direction of the input shaft 1231. In this way, when the engagement protrusion is inserted into the engagement groove to a predetermined depth, the second conductive element 211 of the two engagement signal acquisition units respectively contacts the two first conductive elements 140. When the execution unit 120 and the drive unit 220 are separated, during the process of pulling the engagement protrusion out of the engagement groove, the first conductive element 140 located on the side of the second housing 230 facing the first component 10 first separates from the corresponding second conductive element 211, and the other first conductive element 140 then separates from the corresponding second conductive element 211.

[0064] In some embodiments, the cooperation between the first component 100 and the second component 200 is also directional; that is, the first component 100 and the second component 200 must be assembled in a preset direction to enable the execution unit 120 to be drivenly connected to the output shaft 223. As mentioned above, the cross-sections of the first joint 2231 and the second joint 1231 are both non-circular. Therefore, when assembling the first component 100 and the second component 200, the output shaft 223 should also be in a predetermined state so that the first joint 2231 can mate with the second joint 12311.

[0065] The predetermined state mentioned here refers to the arrangement of the first component 100 and the second component 200 in the predetermined direction, such that the input shaft 1231 and the output shaft 223 are coaxial, and the projection of the first joint portion 2231 on a plane perpendicular to the axis of the output shaft 223 coincides with the projection of the second joint portion 12311 on a plane perpendicular to the axis of the input shaft 1231. Therefore, the electrical signal acquisition unit 210 is also configured to acquire a second target signal related to the second component 200, the second target signal including a second position signal characterizing the output shaft 223 being in the predetermined state. That is, when the electrical signal acquisition unit 210 acquires the second position signal, it indicates that the output shaft 223 is in the predetermined state. It can be understood that when the electrical signal acquisition unit 210 does not acquire the second position signal, the control unit 230 will control the drive unit 220 to operate until the output shaft 223 is in the predetermined state (i.e., the electrical signal acquisition unit 210 acquires the second position signal).

[0066] As shown in Figures 6 and 7, the electrical signal acquisition unit 210 further includes a first sensor 212, which is used to acquire the second position signal. Specifically, when the first sensor 212 receives a monitoring signal emitted by itself, the first sensor 212 acquires the second position signal. In an optional embodiment, the first sensor is a photoelectric sensor, and the corresponding monitoring signal is an optical signal.

[0067] In an optional embodiment, the output shaft 223 is provided with a first signal transmission hole 2232, and the first sensor 212 is disposed corresponding to the first signal transmission hole 2232. During the rotation of the output shaft 223, the first sensor 212 is aligned with or offset from the first signal transmission hole 2232. When the first sensor 212 is aligned with the first signal transmission hole 2232, the monitoring signal emitted by the first sensor 212 can be transmitted through the first signal transmission hole 2232 and then received by the first sensor 212; when the first sensor 212 is offset from the first signal transmission hole 2232, the first sensor 212 cannot receive its own emitted monitoring signal.

[0068] Specifically, referring to Figure 6, the first signal transmission hole 2232 passes through the output shaft 223, and the axis of the first signal transmission hole 2232 is skewed from the axis of the output shaft 223. Furthermore, the axis of the first signal transmission hole 2232 is perpendicular to the axis of the output shaft 223. The first sensor 212 includes a first monitoring signal transmitting unit 2121 and a first monitoring signal receiving unit 2122. The first monitoring signal transmitting unit 2121 and the first monitoring signal receiving unit 2122 are separate structures, respectively disposed on opposite sides of the output shaft 223. When the output shaft 223 is rotated until the first monitoring signal transmitting unit 2121, the first signal transmission hole 2232, and the first monitoring signal receiving unit 2122 are aligned, the first monitoring signal transmitting unit 2121 and the first signal receiving unit 2122 are located at the axial ends of the first signal transmission hole 2232. In this way, the monitoring signal emitted by the first monitoring signal transmitting unit 2121 can be transmitted along the first signal transmission hole 2232 to the first signal receiving unit 2122.

[0069] Alternatively, as shown in Figure 7, the first sensor 212 also includes a first monitoring signal transmitting unit and a first monitoring signal receiving unit, but the two are integrated into one unit. The first sensor 212 is spaced apart from one end face of the output shaft 223, and the end face of the output shaft 223 facing the first sensor 212 is a rough surface. The first signal transmission hole 2232 is a blind hole located on the end face of the output shaft 223 facing the first sensor 212. The axis of the first signal transmission hole 2232 is parallel to the axis of the output shaft 223, and the bottom surface of the first signal transmission hole 2232 is a smooth surface. When the output shaft 223 rotates until the first signal transmission hole 2232 is aligned with the first sensor 212, the monitoring signal emitted by the first sensor 212 is transmitted along the first signal transmission hole 2232 to the bottom of the hole, and then undergoes specular reflection at the bottom of the hole. The reflected monitoring signal is then transmitted back to the first sensor 212. When the first sensor 212 is misaligned with the first signal transmission hole 2232, the monitoring signal emitted by the first sensor 212 undergoes diffuse reflection when transmitted to the end face of the output shaft 223, and the reflected monitoring signal cannot be transmitted back to the first sensor 212, making it impossible for the first sensor 212 to receive the monitoring signal. It should be noted that the spacing between the first sensor 212 and one end face of the output shaft 223 means that the first sensor 212 and the output shaft 223 are arranged along the axial direction of the output shaft 223, and the distance from the first sensor 212 to the end face of the output shaft 223 facing the first sensor 212 is greater than zero.

[0070] In the aforementioned construction of the second component 100, the volume of the media storage space 112 is related to the position of the execution unit 120 relative to the media storage section 110. Therefore, a target location is defined on the execution unit 120, and a first predetermined position is defined on the media storage section 110. When the target location reaches the first predetermined position, the volume of the media storage space 112 is the first predetermined volume. Thus, when the electrical signal acquisition unit 210 acquires the third position signal, it indicates that the target location has reached the first predetermined position. In an optional embodiment, the target location is the pushing part 121. For ease of understanding, the pushing part 121 will be used as the example of the target location in the following description. However, those skilled in the art can modify the following description to adapt to situations where the target location is not the pushing part 121.

[0071] Optionally, continuing to refer to Figures 6 and 7, and in conjunction with Figure 8, the electrical signal acquisition unit 210 further includes a second sensor 213, which is used to acquire the third position signal. Specifically, when the second sensor 213 receives a monitoring signal emitted by itself, the second sensor 213 acquires the third position signal. In an optional embodiment, the second sensor 213 is a photoelectric sensor, and the corresponding monitoring signal is an optical signal.

[0072] Optionally, the output shaft 223 is provided with a second signal transmission hole 2233, which is different from the first signal transmission hole 2232, and the second sensor 213 is disposed corresponding to the second signal transmission hole 2233. During the rotation of the output shaft 223, the second signal transmission hole 2233 and the second sensor 213 may be aligned or misaligned. When the second signal transmission hole 2233 and the second sensor 213 are aligned, the monitoring signal emitted by the second sensor 213 can be received by the second sensor 213 after passing through the second signal transmission hole 2233. When the second signal transmission hole 2233 and the second sensor 213 are misaligned, the second sensor 213 cannot receive the monitoring signal emitted by itself.

[0073] In an optional embodiment, as shown in FIG6, the second signal transmission hole 2233 passes through the output shaft 223, and the axis of the second signal transmission hole 2233 is skewed from the axis of the output shaft 223, preferably perpendicular to it. The second sensor 213 includes a second monitoring signal transmitting part 2131 and a second monitoring signal receiving part 2132, which are separate structures and are respectively disposed on opposite sides of the output shaft 223. When the output shaft 223 is rotated until the second monitoring signal transmitting part 2131, the second signal transmission hole 2233, and the second signal receiving part 2132 are aligned, the second monitoring signal transmitting part 2131 and the second signal receiving part 2132 are located at the axial ends of the second signal transmission hole 2233. Thus, the monitoring signal emitted by the second monitoring signal transmitting part 2131 can be transmitted to the second signal receiving part 2132 along the second signal transmission hole 2233.

[0074] In an alternative embodiment, as shown in FIG7, the second sensor 213 also includes a second monitoring signal transmitting unit and a second monitoring signal receiving unit, but the two are integrally formed. The second sensor 213 is spaced apart from one end face of the output shaft 223, and the end face of the output shaft 223 facing the second sensor 213 is a rough surface. The second signal transmission hole 2233 is a blind hole provided on the end face of the output shaft 223 facing the second sensor 212. The axis of the second signal transmission hole 2233 is parallel to the axis of the output shaft 223, and the bottom surface of the second signal transmission hole 2233 is a smooth surface. When the output shaft 223 rotates until the second signal transmission hole 2233 is aligned with the second sensor 213, the monitoring signal emitted by the second sensor 213 is transmitted along the second signal transmission hole 2233 to the bottom of the second signal transmission hole 2233 and undergoes specular reflection. The reflected monitoring signal is transmitted back to the second sensor 213. When the second sensor 213 is misaligned with the second signal transmission hole 2233, the monitoring signal emitted by the second sensor 213 undergoes diffuse reflection when transmitted to the end face of the output shaft 223, and the reflected monitoring signal cannot be transmitted back to the second sensor 213. It is understood that the first sensor 212 being spaced apart from one end face of the output shaft 223 means that the first sensor 212 and the output shaft 223 are arranged along the axial direction of the output shaft 223, and the distance from the first sensor 212 to the end face of the output shaft 223 facing the first sensor 212 is greater than zero.

[0075] In another alternative embodiment, as shown in FIG8, the media storage unit 110 is configured to allow the monitoring signal emitted by the second sensor 213 to pass through at the first predetermined position, and the push-off part 121 is configured to reflect the monitoring signal emitted by the second sensor 213. Furthermore, the first housing 130 is provided with a transmission part (not shown) corresponding to the first predetermined position to allow the monitoring signal emitted by the second sensor 213 to pass through. The second sensor 213 includes a second monitoring signal transmitting part and a second monitoring signal receiving part, and the two are integrally formed. The second sensor 213 is disposed on one side of the media storage unit 110 and arranged corresponding to the first predetermined position. In this way, when the pushing part 121 has not reached the first predetermined position, the monitoring signal emitted by the second sensor 213 passes through the first housing 130 and the medium storage part 110 and is continuously transmitted in a direction away from the second sensor 213. When the pushing part 121 reaches the first predetermined position, the monitoring signal emitted by the second sensor 213 is reflected by the pushing part 121 located at the first predetermined position, and the reflected monitoring signal is finally transmitted to the second sensor 213.

[0076] Specifically, in the case where the second sensor 213 is the photoelectric sensor, the medium storage section 110 is transparent at the first predetermined position, and the first housing 130 is transparent or has a light-transmitting hole corresponding to the first predetermined position. The push-off section 121 is opaque.

[0077] In a preferred embodiment, a second predetermined position is defined on the medium storage unit 210. When the target part, such as the push part 121, reaches the second predetermined position, the volume of the medium storage space 112 is the second predetermined volume, which is smaller than the first predetermined volume, and the difference between the first predetermined volume and the second predetermined volume is the second preset value.

[0078] It is understood that when the pusher 121 is located at the first predetermined position, the control unit 220 stops operating so that the volume of the medium storage space 112 remains unchanged, thereby keeping the balloon 300 in a depressurized state, or the drive unit 220 operates to drive the execution unit 120 to move in a direction that reduces the volume of the medium storage space 112, so that the balloon 300 gradually inflates.

[0079] In practice, when the balloon 300 is inflated to a predetermined inflation pressure, it is desirable that the drive unit 220 no longer drives the execution unit 120 in a direction that reduces the volume of the medium storage space 112. This is because, when the first predetermined volume is equal to the predetermined volume, when the balloon 300 is inflated to the first preset value, the medium storage space 112 decreases to zero. The execution unit 120 cannot continue to move in the direction that reduces the volume of the medium storage space 112. If the drive unit 220 continues to drive the execution unit 120 in a direction that reduces the volume of the medium storage hole 112, the drive unit 220 is prone to malfunction due to the obstruction of the execution unit 120's movement. When the first predetermined volume is greater than the second preset value, when the balloon 300 is inflated to the first preset value, the media storage space 112 still contains media, and the media storage space 112 can be further reduced. If the drive unit 220 continues to drive the execution unit 120 to run in the direction that reduces the media storage space 112, more media will be pushed into the balloon 300, causing the inflation pressure of the balloon 300 to be greater than the first preset value, which may cause harm to the patient.

[0080] Therefore, it is also preferable to define a second predetermined position on the media storage unit 210, such that when the target part, such as the pushing part 121, reaches the second predetermined position, the media storage space 112 has a second predetermined volume, the second predetermined volume being smaller than the first predetermined volume, and the difference between the first predetermined volume and the second predetermined volume being a second preset value. Thus, the first target signal further includes a fourth position signal characterizing that the target part has reached the second predetermined position.

[0081] The acquisition method of the fourth position signal can refer to the acquisition method of the third position signal. That is, the electrical signal acquisition unit 210 also includes a third sensor (not shown in the figure). When the third sensor acquires the monitoring signal emitted by itself, the third sensor acquires the third position signal. The third sensor can be a photoelectric sensor, and the corresponding monitoring signal is an optical signal.

[0082] Optionally, the output shaft 223 is provided with a third signal transmission hole (not shown in the figure), which is different from both the first signal transmission hole 2232 and the second signal transmission hole 2233. The third sensor is disposed corresponding to the third signal transmission hole. During the rotation of the output shaft 223, the third signal transmission hole is aligned with or offset from the third sensor. When the third signal transmission hole is aligned with the third sensor, the monitoring signal emitted by the third sensor can be received by the third sensor after passing through the third signal transmission hole. When the third signal transmission hole is offset from the third sensor, the third sensor cannot receive the monitoring signal emitted by itself.

[0083] The specific configuration of the third signal transmission hole can be referred to the first signal transmission hole 2232 or the second signal transmission hole 2233, and the corresponding configuration of the third sensor can be referred to the configuration of the first sensor 212 or the second sensor 213, which will not be repeated here.

[0084] It should be noted that when at least two of the first signal transmission hole 2232, the second signal transmission hole 2233, and the third signal transmission hole are provided on the output shaft 223, the axes of any two signal transmission holes should be out of plane to avoid signal crosstalk.

[0085] Alternatively, the media storage unit 110 is configured to allow the monitoring signal emitted by the second sensor 213 to pass through at the second predetermined position, and the pushing part 121 is configured to reflect the monitoring signal emitted by the second sensor 213. The first housing 130 is provided with a transmission part (not shown) corresponding to the second predetermined position to allow the monitoring signal emitted by the third sensor to pass through. The third sensor includes a third monitoring signal transmitting part and a third monitoring signal receiving part, and the two are integrally structured. The third sensor is disposed on one side of the media storage unit 110 and is arranged corresponding to the second predetermined position. In this way, when the pushing part 121 has not reached the second predetermined position, the monitoring signal emitted by the third sensor passes through the first housing 130 and the media storage unit 110 and continues to be transmitted in a direction away from the third sensor. When the pushing part 121 reaches the second predetermined position, the monitoring signal emitted by the third sensor is reflected by the pushing part 121 located at the second predetermined position, and the reflected monitoring signal is finally transmitted to the third sensor.

[0086] Specifically, when the third sensor is the photoelectric sensor, the medium storage section 110 is transparent at the second predetermined position, and the first housing 130 is transparent or has a light-transmitting hole corresponding to the second predetermined position. The push-off section 121 is opaque.

[0087] It should be noted that, in this embodiment of the invention, the first sensor 212, the second sensor 213, the third sensor, the control unit 230, and the drive unit 220 can be powered in any suitable manner. Optional methods include using a battery as a power source to power these components, or directly connecting these components to the mains power system to obtain electrical energy.

[0088] Furthermore, embodiments of the present invention also provide a medical system, including the aforementioned balloon catheter 20 and the aforementioned medical balloon infusion system 10.

[0089] While the present invention has been disclosed above, it is not limited thereto. Those skilled in the art can make various modifications and variations to the present invention without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention also intends to include such modifications and variations.

Claims

1. A medical balloon infusion system, characterized in that, It includes a first component and a second component that are detachably connected; wherein: The first component includes a media storage unit and an execution unit connected to each other; the media storage unit has an inner cavity, at least a portion of which constitutes a storage space; The second component includes an electrical signal acquisition unit, a drive unit, and a control unit; the electrical signal acquisition unit is configured to acquire a first target signal related to the first component; the drive unit is tractably and detachably connected to the execution unit to achieve a detachable connection between the second component and the first component; the control unit is connected to the electrical signal acquisition unit and the drive unit, and is configured to control the operation of the drive unit according to the first target signal to drive the execution unit to move relative to the media storage section and change the volume of the media storage space.

2. The medical balloon infusion system according to claim 1, characterized in that, The first target signal includes a first position signal; the control unit is configured to control the drive unit to operate and drive the execution unit to move relative to the medium storage unit when the electrical signal acquisition unit acquires the first position signal; The first component further includes a first conductive element; the electrical signal acquisition unit includes a connection signal acquisition section, the connection signal acquisition section includes two second conductive elements, the first end of each second conductive element is electrically connected to the control unit, and the second end is capable of contacting the first conductive element; when the second conductive element is separated from the first conductive element, the first component and the second component are separated from each other, and current is prevented from flowing through the connection signal acquisition section and the first conductive element; when the first conductive element is in contact with the second conductive element, the first component is connected to the second component, and current is allowed to flow through the connection signal acquisition section and the first conductive element; the current flowing through the connection signal acquisition section and the first conductive element serves as the first position signal.

3. The medical balloon infusion system according to claim 2, characterized in that, The number of the first conductive elements is multiple, and the multiple first conductive elements are located on different planes; the number of the bonding signal acquisition units is multiple, and the multiple bonding signal acquisition units correspond one-to-one with the multiple first conductive elements. When the second conductive element of each of the bonding signal acquisition units is in contact with the corresponding first conductive element, the first component is connected to the second component; when the second conductive element of each of the bonding signal acquisition units is separated from the corresponding first conductive element, the first component is separated from the second component.

4. The medical balloon infusion system according to claim 1, characterized in that, The electrical signal acquisition unit is configured to acquire a second target signal related to the second component, the second target signal including a second position signal. When the electrical signal acquisition unit acquires the second position signal, the output terminal of the drive unit is in a predetermined state, and the drive unit is allowed to connect to the execution unit. The electrical signal acquisition unit includes a first sensor. When the first sensor receives a monitoring signal emitted by itself, the electrical signal acquisition unit acquires the second position signal.

5. The medical balloon infusion system according to claim 4, characterized in that, The drive unit includes an output shaft with a first signal transmission hole. The first sensor is disposed corresponding to the first signal transmission hole and can be aligned with the first signal transmission hole. When the first sensor is aligned with the first signal transmission hole, the first sensor can receive a monitoring signal emitted by itself.

6. The medical balloon infusion system according to claim 5, characterized in that, The first signal transmission hole penetrates the output shaft, and the axis of the first signal transmission hole is out of plane with the axis of the output shaft; the first sensor includes a first monitoring signal transmitting part and a first monitoring signal receiving part disposed on opposite sides of the output shaft; or, The first sensor is spaced apart from one end face of the output shaft and includes an integral first monitoring signal transmitting part and a first monitoring signal receiving part; the first signal transmission hole is a blind hole provided on the end face of the output shaft facing the first sensor, and the axis of the first signal transmission hole is parallel to the axis of the output shaft; the end face of the output shaft facing the first sensor is a rough surface, and the bottom surface of the first signal transmission hole is a smooth surface.

7. The medical balloon infusion system according to claim 1, characterized in that, The execution unit includes a target part; the first target signal includes a third position signal; the medical balloon perfusion system is configured such that when the electrical signal acquisition unit acquires the third position signal, the target part is located at a first predetermined position of the media storage section, and the media storage space has a first predetermined volume, and the control unit is allowed to control the drive unit to operate and drive the execution unit to move in a direction that reduces the media storage space; The electrical signal acquisition unit includes a second sensor. When the second sensor receives a monitoring signal emitted by itself, the electrical signal acquisition unit acquires the third position signal.

8. The medical balloon infusion system according to claim 7, characterized in that, The drive unit includes an output shaft with a second signal transmission hole. The second sensor is disposed corresponding to the second signal transmission hole and can be aligned with the second signal output hole. When the second sensor is aligned with the second signal transmission hole, the second sensor can receive the monitoring signal emitted by itself.

9. The medical balloon infusion system according to claim 8, characterized in that, The second signal transmission hole penetrates the output shaft, and the axis of the second signal transmission hole is out of plane with the axis of the output shaft; the second sensor includes a second monitoring signal transmitting part and a second monitoring signal receiving part disposed on opposite sides of the output shaft; or, The second sensor is spaced apart from one end face of the output shaft and includes an integral second monitoring signal transmitting part and a second monitoring signal receiving part; the second signal transmission hole is a blind hole provided on the end face of the output shaft facing the second sensor, and the axis of the second signal transmission hole is parallel to the axis of the output shaft; the end face of the output shaft facing the second sensor is a rough surface, and the bottom surface of the second signal transmission hole is a smooth surface.

10. The medical balloon infusion system according to claim 7, characterized in that, The second sensor is disposed on one side of the medium storage section and is arranged corresponding to the first predetermined position; The first predetermined position of the media storage unit is configured to allow the monitoring signal emitted by the second sensor to pass through; The target location is configured to reflect the monitoring signal emitted by the second sensor.

11. The medical balloon infusion system according to claim 10, characterized in that, The first target signal further includes a fourth position signal; the medical balloon infusion system is configured such that when the electrical signal acquisition unit acquires the fourth position signal, the target location is located at a second predetermined position of the media storage section, and the media storage space has a second predetermined volume, and the control unit is allowed to control the drive unit to operate and drive the execution unit to move in a direction that increases the media storage space; the second predetermined volume is smaller than the first predetermined volume, and the difference between the first predetermined volume and the second predetermined volume is a preset value; The electrical signal acquisition unit includes a third sensor. When the third sensor receives a monitoring signal emitted by itself, the electrical signal acquisition unit acquires the fourth position signal.

12. A medical system, characterized in that, The invention includes a balloon catheter and a medical balloon infusion system as described in any one of claims 1-11; the balloon catheter includes a catheter mechanism and a balloon, the balloon being sealed to the distal outer peripheral surface of the catheter mechanism, the catheter mechanism having a medium channel extending axially thereon and communicating with the balloon; the medium storage portion being connected to the proximal end of the catheter mechanism and communicating with the medium channel.

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