Balloon filler system

Abstract

The invention provides a balloon filling device system. The balloon filling device system comprises a balloon filling device and a driving device, the balloon filling device comprises a pump body and a push rod; the far end of the push rod is movably arranged in the pump body, and the push rod can move relative to the pump body so as to fill or pump back the balloon; the driving device comprises a power mechanism and a clutch mechanism, and the clutch mechanism is used for being connected with or separated from the push rod; after the clutch mechanism is connected with the push rod, the power mechanism can drive the push rod to move in the axial direction of the push rod through the clutch mechanism. After the clutch mechanism is separated from the push rod, the push rod can move in the axial direction of the push rod relative to the clutch mechanism. According to the balloon filling device, the balloon filling device can be electrically controlled through the driving device, the operation precision and filling efficiency of the balloon filling device can be improved, the operation time is saved, and the operation difficulty of the balloon filling device is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a balloon inflator system. Background Art

[0002] Interventional surgery is a percutaneous, minimally invasive treatment method that has the advantages of no surgery, less trauma, quick recovery and good treatment effects. As the most advanced and effective treatment method for vascular diseases, this surgical method has developed very rapidly.

[0003] A balloon inflator is a medical device used to pressurize and expand a balloon during interventional surgery to dilate blood vessels or place stents in blood vessels. Balloon inflators play a critical role in cardiovascular and cerebrovascular, peripheral vascular, and structural heart disease fields. By expanding the balloon with a balloon inflator, stents or prostheses can be implanted in the body, thereby treating diseases such as vascular stenosis, occlusion, and heart valves. In actual use, it is necessary to pressurize the balloon inflator in vitro to keep the balloon expanding continuously. After the balloon is expanded and the lesion is treated, the push rod of the balloon inflator is pulled to form a negative pressure in the balloon to retract the balloon, and the balloon can be withdrawn from the body.

[0004] In interventional surgery, it is generally necessary to pressurize and inject a target solution such as contrast agent or saline into the balloon through a balloon inflator to expand the balloon. Currently, the entire injection process is completed manually by the operator. The operator needs to push the push rod of the balloon inflator to inject some liquid into the balloon; as the pressure in the balloon increases, the operator needs to control the push rod to slowly inject. This injection method is time-consuming, labor-intensive, inefficient, has poor operating accuracy and high risks. In addition, manually injecting the target liquid into the balloon may cause overfilling of the balloon, which may lead to balloon rupture and prolonged blood vessel occlusion. Summary of the invention

[0005] The object of the present invention is to provide a balloon inflator system, which can electrically control the balloon inflator through a driving device, thereby greatly improving the operating accuracy and filling efficiency of the balloon inflator, saving operating time, and reducing the operating difficulty of the balloon inflator.

[0006] To achieve the above-mentioned object, the present invention provides a balloon inflator system, comprising a balloon inflator and a driving device; the balloon inflator comprises a pump body and a push rod; the proximal end of the push rod is disposed outside the pump body, the distal end of the push rod is movably disposed in the pump body, and the push rod is used to inflate or withdraw the balloon after moving along its own axial direction;

[0007] The driving device includes a power mechanism and a clutch mechanism, wherein the clutch mechanism is used to connect or disconnect with the push rod; after the clutch mechanism is connected to the push rod, the power mechanism can drive the push rod to move along its own axial direction through the clutch mechanism; after the clutch mechanism is disconnected from the push rod, the push rod can move along its own axial direction relative to the clutch mechanism.

[0008] Optionally, the clutch mechanism includes a first fixing member and a locking member that are slidably connected, the first fixing member is connected to the power mechanism, and the power mechanism is used to drive the first fixing member to drive the locking member to move; the locking member is used to move relative to the first fixing member to connect or separate the locking member from the push rod.

[0009] Optionally, the clutch mechanism further includes a first limiting member and a spring, two ends of the spring are respectively connected to the first fixing member and the locking member, and the first fixing member and the locking member define an accommodating space;

[0010] The first limiting member is used to be placed in the accommodating space to apply a force to the spring and drive the locking member to move relative to the push rod until the locking member is connected to the push rod;

[0011] The first limiting member is further used to release the force acting on the spring after being moved out of the accommodating space, thereby allowing the locking member to be separated from the push rod under the driving force of the elastic force of the spring.

[0012] Optionally, the number of the locking member, the spring and the first limiting member are all two, the two locking members are arranged on opposite sides of the push rod, and the two ends of each spring are respectively connected to the first fixing member and a corresponding one of the locking members;

[0013] Each of the locking members is used to move toward another of the locking members under the drive of a corresponding one of the first limiting members until the two locking members jointly clamp and fix the push rod; after the first limiting member is separated from the corresponding one of the locking members, each of the locking members is also used to separate from the push rod under the drive of the elastic force of a corresponding one of the springs.

[0014] Optionally, each locking member has a groove on a side facing the push rod, and the groove wall of the groove has an internal thread; after each locking member is abutted against the push rod, the internal thread of the locking member is used to cooperate with the external thread of the push rod.

[0015] Optionally, each of the locking members has one of the convex portion and the concave portion on the side facing the push rod, and the push rod has the other of the convex portion and the concave portion; after each of the locking members is abutted against the push rod, the convex portion is used to be inserted into a corresponding one of the concave portions.

[0016] Optionally, the clutch mechanism includes a second fixing member and a second limiting member, and the push rod passes through the second fixing member along its own axial direction; the second limiting member is used to penetrate the second fixing member and the push rod in sequence so that the push rod is connected to the second fixing member; the second limiting member is also used to disengage from the push rod so that the push rod can move relative to the second fixing member.

[0017] Optionally, the second limiting member is a latch pin, and the push rod is provided with a mounting hole matching the latch pin, and the latch pin is used to pass through the second fixing member and be inserted into the mounting hole.

[0018] Optionally, the driving device also includes a transmission mechanism, which is respectively connected to the power mechanism and the clutch mechanism; after the clutch mechanism is connected to the push rod, the power mechanism is used to drive the clutch mechanism through the transmission mechanism to drive the push rod to move along the axial direction of the push rod.

[0019] Optionally, the transmission mechanism is a transmission rod, which is arranged parallel to the push rod, passes through the clutch mechanism, and is threadedly engaged with the clutch mechanism; after the clutch mechanism is connected to the push rod, the transmission rod is used to rotate under the drive of the power mechanism, and is used to drive the clutch mechanism to move after rotation, and then the clutch mechanism drives the push rod to move along its own axial direction.

[0020] Optionally, the balloon inflator system further includes a base and a clamp, and the power mechanism, the transmission mechanism, and the clutch mechanism are all fixed on the base; the clutch mechanism is slidably disposed on the base; and the pump body is fixed to the base by the clamp.

[0021] Optionally, the driving mechanism further includes a control device communicatively connected to the power mechanism, and a control switch is provided on the pump body; the power mechanism includes a motor, and the control device is used to control the operating state of the motor according to a driving signal of the control switch.

[0022] The present invention provides a balloon inflator system, which includes a balloon inflator and a driving device; the balloon inflator includes a pump body and a push rod; the proximal end of the push rod is placed outside the pump body, and the distal end of the push rod is movably placed in the pump body, and the push rod can move relative to the pump body to inflate or withdraw the balloon; the driving device includes a power mechanism and a clutch mechanism, and the clutch mechanism is used to connect or separate with the push rod; after the clutch mechanism is connected to the push rod, the power mechanism can drive the push rod to move along its own axial direction through the clutch mechanism; after the clutch mechanism is separated from the push rod, the push rod can move along its own axial direction relative to the clutch mechanism.

[0023] Such a configuration enables the balloon inflator system to automatically control the movement of the push rod through the drive device to realize the electric drive of the balloon inflator. At this time, it is only necessary to control the power mechanism in the drive device to control the balloon inflator to fill or withdraw the balloon without manually operating the balloon inflator, which can improve the operation accuracy and filling efficiency of the balloon inflator, save operation time, and reduce the difficulty of operating the balloon inflator. At the same time, the clutch mechanism in the system can be connected or separated from the push rod, so that the balloon inflator can be switched between the electric mode and the manual mode, so that the balloon inflator can be switched to the manual mode after the electric mode of the balloon inflator fails, further improving the reliability and safety of the surgical process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a balloon inflator system in a preferred embodiment of the present invention;

[0025] Figure 2 It is a front view structural schematic diagram of a balloon inflator system in a preferred embodiment of the present invention;

[0026] Figure 3a It is a front view structural schematic diagram of a clutch mechanism in a preferred embodiment of the present invention;

[0027] Figure 3b It is a schematic diagram of the three-dimensional structure of a clutch mechanism in a preferred embodiment of the present invention;

[0028] Figure 4 It is a schematic diagram of an axial cross-sectional structure of a push rod and a locking member in a preferred embodiment of the present invention, wherein the locking member locks the push rod;

[0029] Figure 5 It is a schematic diagram of an axial cross-sectional structure of a push rod and a locking member in a preferred embodiment of the present invention, wherein the locking member releases the lock of the push rod;

[0030] Figure 6a It is a front view structural schematic diagram of a clutch mechanism in another preferred embodiment of the present invention;

[0031] Figure 6b It is a schematic diagram of the three-dimensional structure of a clutch mechanism in another preferred embodiment of the present invention;

[0032] Figure 7 It is a schematic diagram of an axial cross-sectional structure of a push rod and a locking member in another preferred embodiment of the present invention, wherein the locking member locks the push rod;

[0033] Figure 8 It is a schematic diagram of an axial cross-sectional structure of a push rod and a locking member in another preferred embodiment of the present invention, wherein the locking member releases the lock of the push rod;

[0034] Figure 9a It is a front view structural schematic diagram of a clutch mechanism in another preferred embodiment of the present invention;

[0035] Figure 9b It is a three-dimensional structural schematic diagram of a clutch mechanism in another preferred embodiment of the present invention;

[0036] Fig.10 It is a schematic diagram of an axial cross-sectional structure of a push rod and a locking member in another preferred embodiment of the present invention, wherein the locking member locks the push rod;

[0037] Fig.11 It is a schematic diagram of an axial cross-sectional structure of a push rod and a locking member in another preferred embodiment of the present invention, wherein the locking member releases the lock of the push rod;

[0038] Fig.12 It is a schematic diagram of the internal structure of a balloon inflator in a preferred embodiment of the present invention;

[0039] Fig.13 It is a schematic diagram of the axial cross-sectional structure of a balloon inflator in a preferred embodiment of the present invention;

[0040] Fig.14 It is a schematic diagram of the three-dimensional structure of a balloon inflator in a preferred embodiment of the present invention.

[0041] In the figure: balloon inflator 1; pump body 11; scale line 111; control switch 112; push rod 12; recess 121; mounting hole 122; switching mechanism 13; dial button 131; threaded block 132; pressure detection mechanism 14; catheter mechanism 15;

[0042] Driving device 2; power mechanism 21; clutch mechanism 22; through hole 221; locking member 222; first accommodating hole 2221; protrusion 2222; first fixing member 223; accommodating space 2231; first limiting member 224; spring 225; second fixing member 226; second accommodating hole 2261; second limiting member 227; transmission mechanism 23; base 3; clamp 4. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0044] The orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or position relationship shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] As used in this specification, "distal end" generally refers to the end of the balloon inflator closer to the patient; the term "proximal end" is opposite to the "distal end" and generally refers to the end of the balloon inflator away from the patient; the term "axial direction" refers to the extension direction of the axis of the push rod, that is, the movement direction of the push rod.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or a connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The exemplary embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may complement or be combined with each other.

[0048] like Figure 1 and Figure 2 As shown, a preferred embodiment of the present invention provides a balloon inflator system, including a balloon inflator 1 and a driving device 2. The balloon inflator 1 includes a pump body 11 and a push rod 12, wherein the proximal end of the push rod 12 is disposed outside the pump body 11, and the distal end of the push rod 12 is movably disposed in the pump body 11, and the push rod can move relative to the pump body to inflate or withdraw the balloon. In this embodiment, the distal end of the pump body 11 has an opening so that the distal end of the push rod 12 extends out of the distal end of the pump body 11 through the opening so that the push rod 12 can be operated manually or automatically.

[0049] The driving device 2 includes a power mechanism 21 and a clutch mechanism 22, and the clutch mechanism 22 is used to connect or disconnect with the push rod 12. After the clutch mechanism 22 is connected to the push rod 12, the power mechanism 21 can drive the push rod 12 to move along its own axial direction through the clutch mechanism 22, thereby realizing electric drive. After the clutch mechanism 22 is separated from the push rod 12, the push rod 12 can move along its own axial direction relative to the clutch mechanism 22, for example, the movement of the push rod 12 can be manually controlled, thereby realizing manual drive.

[0050] The balloon inflator system provided by the present invention can automatically control the movement of the push rod 12 through the driving device 2 to realize the electric drive of the balloon inflator 1. At this time, it is only necessary to control the power mechanism 21 in the driving device 2 to control the balloon inflator 1 to fill or withdraw the balloon, without manually operating the balloon inflator 1. This can improve the operation accuracy and filling efficiency of the balloon inflator 1, save operation time, and reduce the operation difficulty of the balloon inflator 1. At the same time, the clutch mechanism 22 in the system can be connected or separated from the push rod 12, so that the balloon inflator 1 can be switched between the electric mode and the manual mode, so that the balloon inflator 1 can be switched to the manual mode after the electric mode of the balloon inflator 1 fails, further improving the reliability and safety of the surgical process.

[0051] In more detail, the distal end of the push rod 12 is placed in the pump body 11 so that the pump body 11 forms an infusion chamber with a variable volume (not shown). The power mechanism 21 is used to drive the push rod 12 to move along its own axial direction relative to the pump body 11, thereby changing the volume of the infusion chamber. Specifically, if the push rod 12 moves toward the distal end, the volume of the infusion chamber decreases, and the target liquid in the infusion chamber is pushed out and fills the balloon, thereby expanding the balloon; if the push rod 12 moves toward the proximal end, the volume of the infusion chamber increases, and the target liquid in the balloon can be drawn back into the infusion chamber, thereby retracting the balloon.

[0052] Continue to refer to Figure 1 As shown, the driving device 2 further includes a transmission mechanism 23, which is respectively connected to the power mechanism 21 and the clutch mechanism 22. After the clutch mechanism 22 is connected to the push rod 12, the power mechanism 21 is used to drive the clutch mechanism 22 through the transmission mechanism 23 to drive the push rod 12 to move along the axial direction of the push rod 12, so as to achieve filling or withdrawal of the balloon.

[0053] In a preferred embodiment, the transmission mechanism 23 is a transmission rod (not numbered), which is inserted into the clutch mechanism 22 and is threadedly engaged with the clutch mechanism 22. After the clutch mechanism 22 is connected to the push rod 12, the transmission rod is used to rotate under the drive of the power mechanism 21, and is used to drive the clutch mechanism 22 to move after rotation, and then the clutch mechanism 22 drives the push rod 12 to move along its own axial direction. In this way, the rotational motion of the transmission rod can be converted into the forward and backward movement of the clutch mechanism 22, and the push rod 12 can be driven to move forward and backward through the clutch mechanism 22, thereby realizing the driving of the push rod 12 by the power mechanism 21.

[0054] In a preferred embodiment, the clutch mechanism 22 has a through hole 221 (see Figure 3a and Figure 3b ), the transmission rod is passed through and fixed in the through hole 221. The external thread of the transmission rod is engaged with the internal thread on the hole wall of the through hole 221, so as to convert the rotational motion of the transmission rod into the forward and backward movement of the clutch mechanism 22.

[0055] In more detail, the push rod 12 is arranged in parallel with the transmission rod, that is, the axial direction of the push rod 12 is parallel to the axial direction of the transmission rod. At this time, when the clutch mechanism 22 moves in the axial direction of the transmission rod, it can drive the push rod 12 to move in the axial direction of the transmission rod. Since the axial direction of the transmission rod is the axial direction of the push rod 12, the push rod 12 can move in its own axial direction through the transmission rod and the clutch mechanism 22.

[0056] Reference Figure 3a and Figure 3b As shown, in a preferred embodiment, the clutch mechanism 22 includes a locking member 222 and a first fixing member 223 that are slidably connected, and the first fixing member 223 is connected to the power mechanism 21. The power mechanism 21 is used to drive the first fixing member 223 to drive the locking member 222 to move. The locking member 222 is used to move relative to the first fixing member 223, so that the locking member 222 is connected to or separated from the push rod 12.

[0057] After the locking member 222 is connected to the push rod 12, the locking member 222 locks the push rod 12, so as to facilitate the push rod 12 to move along the axial direction of the push rod 12. After the locking member 222 is separated from the push rod 12, the locking member 222 releases the lock on the push rod 12, so that the push rod 12 can move along its own axial direction relative to the locking member 222. With such a structure, the structure of the clutch mechanism 22 can be simplified, and the clutch mechanism 22 and the push rod 12 can be matched through the locking member 222.

[0058] like Figure 3a and Figure 3bAs shown, the clutch mechanism 22 preferably also includes a first limiter 224 and a spring 225, the two ends of the spring 225 are respectively connected to the first fixing member 223 and the locking member 222, and the first fixing member 223 and the locking member 222 define a receiving space 2231. The first limiter 224 is used to be placed in the receiving space 2231 to apply a force to the spring 225, and drive the locking member 222 to move relative to the push rod mechanism 12 until the locking member 222 is connected to the push rod 12, at which time the balloon inflator 1 switches to the electric mode. The first limiter 224 is also used to release the force on the spring 225 after moving out of the receiving space 2231, so that the locking member 222 is separated from the push rod 12 under the drive of the elastic force of the spring 225, and at this time the balloon inflator switches to the manual mode.

[0059] In this embodiment, the first fixing member 223 has a receiving groove (not numbered), the locking member 222 is slidably placed in the receiving groove, and the push rod 12 is used to be placed in the receiving groove and placed on one side of the locking member 222. The accommodating space 2231 is located on the other side of the locking member 222, and the first limiting member 224 is used to be inserted into the accommodating space 2231 to drive the locking member 222 to move toward the push rod 12 and fix the push rod 12. When the balloon inflator 1 needs to be switched to the manual mode, it is only necessary to move the first limiting member 224 out of the accommodating space 2231, and the locking member 222 can be separated from the push rod 12 under the elastic force of the spring 225, so that the push rod 12 is separated from the locking member 222.

[0060] In a specific example, the spring 225 can be placed in the accommodation space 2231 (see Figure 3a and Figure 3b ). At this time, when the first limiter 224 is placed in the accommodating space 2231, the spring 225 can be stretched to connect the locking member 222 with the push rod 12; after the first limiter 224 moves out of the accommodating space 2231, the spring 225 contracts to return to the initial state (i.e., the state before the spring 225 is stretched), so as to drive the locking member 222 to separate from the push rod 12.

[0061] In another specific example, the spring 225 and the push rod 12 can be placed on the same side of the locking member 222. In this case, when the first stopper 224 is placed in the accommodating space 2231, the spring 225 can be compressed to connect the locking member 222 with the push rod 12; after the first stopper 224 moves out of the accommodating space 2231, the spring 225 stretches to return to the initial state (i.e., the state before the spring 225 is not compressed) to drive the locking member 222 to separate from the push rod 12.

[0062] The present application does not limit the opening direction of the accommodation space 2231, and the opening of the accommodation space 2231 can be arranged in the vertical direction or the horizontal direction of the first fixing member 223. Preferably, the opening of the accommodation space 2231 is arranged in the vertical direction of the first fixing member 223 to facilitate the insertion and removal of the first limiting member 224.

[0063] Reference Figure 3a and Figure 3b As shown, as a preferred embodiment, the number of the locking member 222, the spring 225 and the first limiting member 224 are all two, and the two locking members 222 are arranged on opposite sides of the push rod 12. The two ends of each spring 225 are respectively connected to the first fixing member 223 and a corresponding locking member 222. Each locking member 222 is used to move toward another locking member 222 under the drive of a corresponding first limiting member 224 until the two locking members 22 jointly clamp and fix the push rod 12, so that the locking member 222 is firmly connected to the push rod 12. After the first limiting member 224 is separated from the corresponding locking member 222, each locking member 222 is also used to be separated from the push rod 12 under the drive of the elastic force of a corresponding spring 225.

[0064] Reference Figure 3a , Figure 3b , Figure 6a and Figure 6b As shown, in a specific example, the transmission rod is inserted into the through hole 221 of the first fixing member 223, and the two locking members 222 are used to clamp the push rod 12. The push rod 12 is parallel to the transmission rod, and the transmission rod is used to drive the first fixing member 223 to drive the locking member 222 to move. After the locking member 222 is connected to the push rod 12, it drives the push rod 12 to move along its own axial direction.

[0065] As a specific embodiment, two locking members 222 can be placed on both sides of the push rod 12 in the horizontal direction, one end of each spring 225 is connected to the side of the corresponding locking member 222 away from the push rod 12, and the other end is connected to the groove wall of the receiving groove. Each first stopper 224 can be inserted between the locking member 222 and the groove wall of the receiving groove to put the spring 225 in a stretched state. At this time, the two locking members 222 jointly clamp the push rod 12, thereby switching the balloon inflator 1 to the electric mode.

[0066] In a preferred embodiment, each locking member 222 has a groove on one side facing the push rod 12, the inner wall of the groove has an internal thread, and the outer wall of the push rod 12 has an external thread. In this embodiment, the shape of the groove is semicircular, and the grooves of the two locking members 222 are abutted against each other to form a first receiving hole 2221 for receiving the push rod 12 (see Figure 3a and Figure 3b ). Reference Figure 4After each locking member 222 is in contact with the push rod 12, the internal thread of the locking member 222 is used to cooperate with the external thread of the push rod 12, and the push rod 12 is clamped in the first receiving hole 2221. Figure 5 After each locking member 222 is separated from the push rod 12 , the locking member 222 releases the lock on the push rod 12 , and the push rod 12 is separated from the first accommodating hole 2221 and can move relative to the locking member 222 .

[0067] like Figure 6a , Figure 6b , Figure 7 and Figure 8 As shown, in another preferred embodiment, each locking member 222 has one of a convex portion and a concave portion on a side facing the push rod 12, and the push rod 12 has the other of the convex portion and the concave portion. After each locking member 222 abuts against the push rod 12, the convex portion is inserted into a corresponding concave portion, so that the locking member 222 is connected to the push rod 12.

[0068] Reference Figure 7 and Figure 8 In one specific example, each locking member 222 has a convex portion 2222, and a concave portion 121 on the push rod 12 matches the convex portion 2222. In another specific example, each locking member 222 has a concave portion, and a convex portion on the push rod 12 matches the concave portion.

[0069] like Figure 9a , Figure 9b , Fig.10 and Fig.11 As shown, in another preferred embodiment, the clutch mechanism 22 includes a second fixing member 226 and a second stopper 227, the push rod 12 passes through the second fixing member 226 along its own axial direction, and the second stopper 227 is used to sequentially penetrate the second fixing member 226 and the push rod 12 to connect the push rod 12 with the second fixing member 226; in this way, the push rod 12 can connect the second fixing member 226 and the push rod 12 by inserting the second stopper 227, so as to realize the connection between the clutch mechanism 22 and the push rod 12. The second stopper 227 is also used to disengage the push rod 12, so that the push rod 12 can move relative to the second fixing member 226.

[0070] In this embodiment, the second fixing member 226 has a through hole 221 for accommodating the transmission rod and a second accommodating hole 2261 for accommodating the push rod (see Figure 9a and Figure 9b ), the through hole 221 and the second receiving hole 2261 are arranged in parallel. The second stopper 227 is a latch, and the number of the latch can be one or more. The push rod 12 is provided with one or more mounting holes 122 (refer to Fig.11), each latch is used to pass through the second fixing member 2226 and then be inserted into a corresponding mounting hole 122, so that the balloon inflator 1 is switched to the electric mode, and then the balloon inflator 1 can be controlled to fill and withdraw the balloon through the power mechanism 21. When all the latches are pulled out, the push rod 12 can be separated from the second fixing member 226, so that the balloon inflator 1 is switched to the manual mode, and then the push rod 12 can be manually pushed or rotated to control the balloon inflator 1 to fill and withdraw the balloon.

[0071] Preferably, the second stopper 227 can be pre-inserted and fixed on the second fixing member 226, so that the second fixing member 226 and the second stopper 227 form a whole. In this way, when the balloon inflator 1 needs to be switched to the electric mode, the second stopper 227 only needs to be inserted downward into a mounting hole 122 corresponding to the push rod 12 to achieve the connection between the push rod 12 and the clutch mechanism 22.

[0072] In other examples, the second limiting member 227 and the second fixing member 226 may be separately provided. When the balloon inflator 1 needs to be switched to the electric mode, the second limiting member 227 may be respectively inserted through the corresponding second fixing member 226 and then into a mounting hole 122 corresponding to the push rod 12 to achieve the connection between the push rod 12 and the clutch mechanism 22.

[0073] Reference Fig.12 and Fig.13 As shown, the balloon inflator 1 also includes a switching mechanism 13, which is connected to the pump body 11 and is used to be detachably connected to the push rod 12. The switching mechanism 13 has a locked state and an unlocked state, and can be switched between the locked state and the unlocked state. The switching mechanism 13 in the unlocked state can release the push rod 12 to allow the push rod 12 to move axially to fill or withdraw the balloon. At this time, the balloon inflator 1 is in a push-pull filling state under low pressure and low precision.

[0074] When the pressure is too high or the precision requirement is high, the switching mechanism 13 can be switched to a locked state. The switching mechanism 13 in the locked state can lock the push rod 12 to prevent the push rod 12 from moving along its own axial direction, and the locked push rod 12 can only rotate relative to the pump body 11. At this time, the balloon inflator 1 is in a high-pressure, high-precision rotational filling state. In this state, the balloon inflator 1 can achieve high-pressure expansion and high-precision filling of the balloon.

[0075] The balloon inflator 1 can control the movement or limit of the push rod 12 by controlling the state of the switching mechanism 13, so that the push rod 12 can fill, maintain or extract the target liquid in the balloon, thereby making the balloon inflator 1 have three working modes of pressurization, pressure maintenance and pressure relief, further ensuring the safety and reliability during the operation.

[0076] Furthermore, the switching mechanism 13 includes a dial button 131 and a threaded block 132, and the dial button 131 is used to drive the movement of the threaded block 132. When the threaded block 132 moves to separate from the push rod 12, the switching mechanism 13 is in an unlocked state, and the push rod 12 can move along its own axial direction relative to the threaded block 132. When the threaded block 132 moves to abut against the push rod 12, the switching mechanism 13 is in a locked state, and the threaded block 132 can limit the push rod 12 from moving along its own axial direction. The dial button 131 can be rotated to switch the switching mechanism 13 between a locked state and an unlocked state, thereby placing the balloon inflator 1 in a push-pull filling state or a rotation filling state as required.

[0077] like Fig.12 As shown, the balloon inflator further includes a pressure detection mechanism 14. The pressure detection mechanism 14 is used to detect the pressure in the infusion cavity. The operator can obtain the actual pressure in the balloon through the pressure detection mechanism 14 and control the movement of the push rod 12 according to the actual pressure of the balloon.

[0078] In this embodiment, the pressure detection mechanism 14 is a pressure gauge, which is connected to the infusion cavity, and can detect and display the infusion pressure in the balloon inflator 1 in real time.

[0079] In addition, the balloon inflator further includes a catheter mechanism 15, which is used to communicate with the infusion cavity of the pump body 11 so as to inject the target liquid into the balloon through the catheter mechanism 15. The catheter mechanism 15 is preferably composed of a medical catheter, a medical Luer connector and a protection mechanism, and the balloon can be connected to the medical catheter through the medical Luer connector. The protection mechanism can protect the medical catheter to prevent the medical catheter from bending and hindering the operation.

[0080] like Fig.14 As shown, the pump body 11 can be held by the operator, and the pump body 11 has a window (not labeled) for observing the scale line 111. The scale line 111 can show the moving position of the push rod 12. The operator can observe the moving position of the push rod 12 through the scale line 111, and then know the moving state of the push rod 12. The pump body 11 preferably also has an opening (not labeled) for accommodating a dial button 131. The operator can switch the switching mechanism 13 between the locked state and the unlocked state by turning the dial button 131.

[0081] Reference Fig.14 As shown, the driving device also includes a control device, and a control switch 112 is provided on the pump body 11. The power mechanism 21 includes a motor, and the control device is respectively connected to the control switch 112 and the motor. The control device is used to control the operating state of the motor according to the driving signal of the control switch 112, and the motor drives the push rod 12 to move along its own axial direction in the operating state to fill or withdraw the balloon. It should be understood that the operating state of the motor may include the target rotation speed and target rotation direction of the motor.

[0082] In this embodiment, the control switch 112 is a plurality of control buttons arranged on the pump body 11. The operator can press the button of the corresponding function as needed to control the forward or reverse rotation of the motor and the forward or reverse rotation speed of the motor in the electric mode, thereby controlling the moving direction and speed of the push rod 12, and then controlling the balloon inflator 1 to fill or withdraw the balloon, and adjusting the filling or withdrawal rate of the balloon inflator 1.

[0083] Return to reference Figure 1 and Figure 2 The balloon inflator system further includes a base 3 and a clamp 4, and a power mechanism 21, a transmission mechanism 23, and a clutch mechanism 22 are all fixed on the base 3. The pump body 11 is fixed on the base 3 by the clamp 4. The clutch mechanism 22 is slidably disposed on the base 3 and is used to move along the extension direction of the transmission rod, so as to drive the clutch mechanism 22 to move forward and backward on the base 3 when the transmission mechanism 23 rotates.

[0084] The present invention has no particular restrictions on the type of control device, which may be hardware that performs logical operations, such as a single-chip microcomputer, a microprocessor, a programmable logic controller (PLC) or a field-programmable gate array (FPGA), or a software program, functional module, function, object library or dynamic link library that implements the above functions based on hardware. It should be known how to specifically implement the communication between the control device and other devices.

[0085] In summary, the balloon filler system provided by the present invention can automatically control the movement of the push rod 12 in the balloon filler 1 through the driving device 2 to realize the electric drive of the balloon filler 1. At this time, it is only necessary to control the operating state of the power mechanism 21 to control the balloon filler 1 to fill or withdraw the balloon, without the need to manually operate the balloon filler 1, which greatly improves the operating accuracy and filling efficiency of the balloon filler 1, saves operating time, and reduces the operating difficulty of the balloon filler 1. In this system, the clutch mechanism 22 can be connected or separated from the push rod 12, so that the balloon filler 1 can be switched between the electric mode and the manual mode. It has a simple structure and is easy to operate. At the same time, the balloon filler 1 can be switched to the manual mode after the electric mode fails, so as to prevent the failure of the driving device from affecting the surgical process and improve the reliability and safety of the surgical process.

[0086] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the protection scope of the present invention.

Claims

1. A balloon inflator system, characterized in that: The invention comprises a balloon inflator and a driving device; the balloon inflator comprises a pump body and a push rod; the proximal end of the push rod is arranged outside the pump body, the distal end of the push rod is movably arranged in the pump body, and the push rod can move relative to the pump body to inflate or withdraw the balloon; The driving device includes a power mechanism and a clutch mechanism, wherein the clutch mechanism is used to connect or disconnect with the push rod; after the clutch mechanism is connected to the push rod, the power mechanism can drive the push rod to move along its own axial direction through the clutch mechanism; after the clutch mechanism is disconnected from the push rod, the push rod can move along its own axial direction relative to the clutch mechanism.

2. The balloon inflator system according to claim 1, wherein: The clutch mechanism includes a first fixing member and a locking member that are slidably connected. The first fixing member is connected to the power mechanism. The power mechanism is used to drive the first fixing member to drive the locking member to move. The locking member is used to move relative to the first fixing member to connect or separate the locking member from the push rod.

3. The balloon inflator system of claim 2, wherein: The clutch mechanism further includes a first limiting member and a spring, wherein two ends of the spring are respectively connected to the first fixing member and the locking member, and the first fixing member and the locking member define an accommodating space; The first limiting member is used to be placed in the accommodating space to apply a force to the spring and drive the locking member to move relative to the push rod until the locking member is connected to the push rod; The first limiting member is further used to release the force acting on the spring after being moved out of the accommodating space, thereby allowing the locking member to be separated from the push rod under the driving force of the elastic force of the spring.

4. The balloon inflator system of claim 3, wherein: The number of the locking member, the spring and the first limiting member are all two, the two locking members are arranged on opposite sides of the push rod, and the two ends of each spring are respectively connected to the first fixing member and a corresponding one of the locking members; Each of the locking members is used to move toward another of the locking members under the drive of a corresponding one of the first limiting members until the two locking members jointly clamp and fix the push rod; after the first limiting member is separated from the corresponding one of the locking members, each of the locking members is also used to separate from the push rod under the drive of the elastic force of a corresponding one of the springs.

5. The balloon inflator system of claim 4, wherein: Each locking member has a groove on the side facing the push rod, and the groove wall of the groove has an internal thread; after each locking member is abutted against the push rod, the internal thread of the locking member is used to cooperate with the external thread of the push rod.

6. The balloon inflator system of claim 4, wherein: Each of the locking members has one of the convex portion and the concave portion on the side facing the push rod, and the push rod has the other of the convex portion and the concave portion; after each of the locking members is in contact with the push rod, the convex portion is used to be inserted into a corresponding one of the concave portions.

7. The balloon inflator system of claim 1, wherein: The clutch mechanism includes a second fixing member and a second limiting member, and the push rod passes through the second fixing member along its own axial direction; the second limiting member is used to penetrate the second fixing member and the push rod in sequence to connect the push rod with the second fixing member; the second limiting member is also used to disengage from the push rod to enable the push rod to move relative to the second fixing member.

8. The balloon inflator system of claim 7, wherein: The second limiting member is a latch pin, and the push rod is provided with a mounting hole matching the latch pin, and the latch pin is used to pass through the second fixing member and then be inserted into the mounting hole.

9. The balloon inflator system according to any one of claims 1 to 8, characterized in that: The driving device also includes a transmission mechanism, which is connected to the power mechanism and the clutch mechanism respectively; after the clutch mechanism is connected to the push rod, the power mechanism is used to drive the clutch mechanism through the transmission mechanism to drive the push rod to move along the axial direction of the push rod.

10. The balloon inflator system of claim 9, wherein: The transmission mechanism is a transmission rod, which is arranged in parallel with the push rod, and the transmission rod is inserted into the clutch mechanism and is threadedly engaged with the clutch mechanism; After the clutch mechanism is connected to the push rod, the transmission rod is used to rotate under the drive of the power mechanism, and is used to drive the clutch mechanism to move after the rotation, and then the clutch mechanism drives the push rod to move along its own axial direction.

11. The balloon inflator system of claim 9, wherein: It also includes a base and a clamp, the power mechanism, the transmission mechanism and the clutch mechanism are all fixed on the base; the clutch mechanism is slidably arranged on the base; the pump body is fixed on the base through the clamp.

12. The balloon inflator system according to any one of claims 1 to 8, characterized in that: The driving mechanism also includes a control device that is communicatively connected to the power mechanism, and a control switch is provided on the pump body; the power mechanism includes a motor, and the control device is used to control the operating state of the motor according to the driving signal of the control switch.

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