A balloon dilatation catheter for hepatobiliary surgery

Abstract

The present invention provides a balloon dilatation catheter for hepatobiliary surgical treatment, which belongs to the field of medical device technology, including a connecting seat, one end of the connecting seat is fixedly installed with an air pump, the outer end of the connecting seat is fixedly connected to a sleeve joint, the output end of the air pump is connected to the sleeve joint, and the top of the connecting seat close to the sleeve joint is fixedly connected to a catheter device. The catheter device of the present application integrates air pressure control and disinfection and reeling functions, so that when in use, the air pump is started to supply air to the expansion balloon, the air pressure sensor is monitored in real time, and the pressure relief solenoid valve is exhausted when the air pressure is too high to prevent the balloon from over-expanding. The catheter body can be reeled on the reeling drum. After reeling, the internal and external ultraviolet lamps are respectively irradiated and sterilized from the inner and outer surfaces of the catheter. The drive motor drives the reeling shaft through gear transmission to realize the reeling and releasing of the catheter, reduce the risk of secondary infection, and is convenient to operate and carry.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a balloon dilatation catheter for hepatobiliary surgical treatment. Background Art

[0002] In the field of modern hepatobiliary surgery, balloon dilatation catheters, as an important type of medical device, play a key role in the treatment of biliary diseases. They are mainly composed of a slender tube and an expandable balloon at the distal end. The proximal end of the tube is equipped with a Luer connector for easy connection to syringes and other equipment. The proximal end of the balloon is equipped with an injection port. Through interventional approaches such as percutaneous or endoscopic approaches, the catheter is precisely inserted into the patient's bile duct lesion site. By injecting saline or contrast agent into the balloon to expand it, the narrow bile duct is effectively widened, or gallstones are broken up and the fragments are discharged using the catheter. It can also lay the foundation for subsequent operations such as stent placement and drainage tube placement. This catheter is widely used in the treatment of various diseases such as bile duct stenosis, bile duct stones, cholangitis, and biliary tumors. It has significant advantages such as minimally invasiveness, easy operation, the ability to perform multiple treatment operations simultaneously under endoscopy, real-time display of the dilation process, high success rate, and low recurrence rate, providing an effective treatment method for many patients.

[0003] However, in the current clinical application process, balloon dilatation catheters have exposed a series of problems that need to be solved urgently. On the one hand, the existing balloon dilatation catheters lack effective disinfection function. Before actual use, balloon dilatation catheters are inevitably exposed to the external environment. Long-term exposure causes a large number of bacteria to be adsorbed on the surface of the catheter. When the catheter is inserted into the patient's body, these bacteria can easily cause adverse effects on the patient's body, greatly increasing the risk of secondary infection in the patient, seriously threatening the patient's health and treatment effect. On the other hand, in the installation and removal of the catheter, a threaded connection method is currently used. When the catheter needs to be removed, since the threaded joint is tightly connected to the entire catheter and the catheter is long, the entire catheter and the threaded joint need to be rotated during the removal process. This operation is extremely inconvenient, greatly reducing the work efficiency of medical staff and causing potential discomfort to patients. It can be seen that the existing hepatobiliary surgery balloon dilatation catheters have obvious deficiencies in disinfection function and installation and removal convenience, which seriously restricts their further application and development in clinical treatment. Therefore, there is an urgent need for targeted improvement and design to improve product performance, better meet clinical treatment needs, and provide patients with safer and more efficient treatment options. Summary of the Invention

[0004] In view of the problem that existing balloon dilatation catheters in the prior art lack a disinfection structure and are easily contaminated by bacteria and viruses, the purpose of the present invention is to provide a balloon dilatation catheter for hepatobiliary surgical treatment.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A balloon dilatation catheter for hepatobiliary surgery comprises a connector, an air pump is fixedly mounted on one end of the connector, a sleeve is fixedly connected to the outer end of the connector, the output end of the air pump is connected to the sleeve, and a catheter device is fixedly connected to the top of the connector near the sleeve.

[0007] The catheter device includes a catheter body and a positioning mechanism, the positioning mechanism is installed on the side of the top of the connecting seat close to the sleeve joint, the top of the positioning mechanism is fixedly connected to a base frame, the front end of the base frame close to the connecting seat is fixedly connected to an adjustment mechanism, the adjustment mechanism is installed on the side close to the connecting seat, the upper end of the base frame away from the connecting seat is fixedly connected to a disinfection mechanism, the catheter body is rolled up on the inner side of the disinfection mechanism, the outer end of the catheter body is fixedly connected to an inflation balloon, an air supply microtube is provided inside the catheter body, a plug connector is installed at one end of the catheter body close to the connecting seat, the plug connector is inserted into the inside of the sleeve joint, and the inflation balloon is connected to the plug connector through the air supply microtube.

[0008] Optionally, a pressure relief solenoid valve is fixedly connected to the front side of the connecting seat near one end of the sleeve joint, an air pressure sensor is fixedly connected to the top of the pressure relief solenoid valve, and a detection end of the air pressure sensor is arranged inside the connecting seat.

[0009] Optionally, the positioning mechanism includes a rail frame, which is fixedly connected to the top side of the connecting seat near the sleeve joint. The inside of the rail frame is rotatably connected to a screw rod, the outer surface of the screw rod is threadedly connected to a sliding block, and the bottom of the sliding block is fixedly connected to a push frame. The front shape of the push frame is a hook shape, the cross-sectional shape of the plug joint is an I-shape, and the plug joint is placed inside the push frame.

[0010] Optionally, the adjustment mechanism includes a vertical rail, which is fixedly connected to the front end of one side of the base frame close to the connecting seat. The interior of the vertical rail is slidably connected to a sliding block, and the outer side of the sliding block is fixedly connected to a limiting arm. The outer side of the limiting arm is provided with a mounting screw, and the end of the limiting arm away from the mounting screw is connected to the driving mechanism.

[0011] Optionally, the mounting screw is configured as a hand-tightened screw, and limiting holes are provided at both upper and lower ends of one side of the vertical rail close to the mounting screw, and the ends of the mounting screw are inserted into the limiting holes.

[0012] Optionally, the driving mechanism includes a transmission gear, a limit assembly and a driving motor, the driving motor is fixedly connected to the end of the limit arm away from the mounting screw, the output end of the driving motor passes through the limit arm and is fixedly connected to the driving gear, the transmission gear is rotatably connected to the lower end of the base near the connecting seat and the end of the disinfection mechanism near the connecting seat, the transmission gear at the bottom and the end of the screw are fixedly connected, and the limit assembly is fixedly installed at the lower end of one side of the base near the connecting seat and the upper end of the one side of the disinfection mechanism near the connecting seat.

[0013] Optionally, the disinfection mechanism includes a winding drum, which is fixedly connected to the upper end of the side of the base away from the connecting seat, and the transmission gear located at the upper end is rotatably connected to the middle part of the side of the winding drum close to the connecting seat. A disinfection component is movably installed inside the winding drum, and the catheter body is wound on the outer surface of the disinfection component. The transmission gear located at the upper end is connected to the outer side of the disinfection component. Entry and exit slots are provided in the middle of the top and the middle of the bottom of the winding drum, and the catheter body passes through the entry and exit slots.

[0014] Optionally, the disinfection component includes a turntable and an external ultraviolet lamp, the turntable is rotatably connected to the two ends inside the winding drum, the upper and lower ends inside the turntable are rotatably connected to the winding shaft, the catheter body is wrapped around the outer surface of the winding shaft, the turntable close to the connecting seat side is connected to the transmission gear located at the top, the external ultraviolet lamps are arranged in a ring shape at equal intervals and fixedly connected to the inside of the winding drum, and the external ultraviolet lamps are arranged on the outside of the wound catheter body.

[0015] Optionally, an internal ultraviolet lamp is fixedly connected to the middle of the inner sides of the turntable, and the internal ultraviolet lamp is arranged in the middle of the rolled-up catheter body. Partition rods are fixedly connected at equal intervals between the inner sides of the turntable, and the partition rods are arranged between the outer side of the internal ultraviolet lamp and the rolled-up catheter body.

[0016] Optionally, the limit assembly includes a side frame and a push rod, the side frame is fixedly connected to the lower end of the base frame close to the connecting seat and the upper end of the winding drum close to the connecting seat, the inside of the side frame is fixedly connected to a limit spring, the end of the limit spring is fixedly connected to a push block, the inner side of the push block is fixedly connected to a triangular clamping block, the end of the triangular clamping block is inserted into the inner side of the tooth groove of the transmission gear, the push rod is fixedly connected to the top and bottom of the drive motor, and the outer side of the push block is fixedly connected to a push rod.

[0017] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0018] In the above scheme, the catheter device of this device integrates air pressure control and disinfection and winding functions. When in use, the air pump is started to supply air to the inflation balloon, and the air pressure sensor monitors the air pressure in real time. When the air pressure is too high, the pressure relief solenoid valve automatically opens to exhaust, so as to avoid excessive inflation of the balloon and cause discomfort to the patient. The catheter body can be wound up in the winding drum. After winding, the external ultraviolet lamp and the internal ultraviolet lamp irradiate and sterilize from the outer surface and inner surface of the catheter body respectively to achieve all-round disinfection. The drive motor drives the transmission gear through the drive gear, and then the turntable and winding shaft in the winding drum rotate to complete the winding of the catheter body; the drive motor is rotated in reverse to release the catheter. This series of designs enables the device to have good disinfection function, reduces the risk of secondary infection, and the wound catheter is easy to operate and carry.

[0019] This device adopts a positioning mechanism, which can optimize the installation and disassembly process of the catheter during use. During installation, the plug connector is placed on the inner side of the push frame, and the drive motor is started to drive the bottom transmission gear to rotate the screw rod, and the screw rod drives the sliding block in the rail frame to slide, thereby driving the push frame to push the plug connector into the sleeve joint to achieve a stable connection. During disassembly, the drive motor is started in reverse, the screw rod rotates in the opposite direction, the sliding block and the push frame move outward, and the plug connector is pulled out of the sleeve joint. This design avoids the traditional tedious disassembly and assembly method of rotating the entire catheter body and the plug connector. Medical staff only need to adjust the positioning mechanism to quickly complete the replacement and disassembly of the catheter body, thereby improving work efficiency.

[0020] This device achieves efficient control of the disinfection mechanism and the positioning mechanism through the coordinated cooperation of the adjustment mechanism and the drive mechanism. When no drive is needed, the sliding block in the vertical rail is moved to the middle, the mounting screw is tightened to fix it, and the driving gear is disengaged from the transmission gear. When disassembling the catheter body, the sliding block is moved downward to engage the driving gear with the bottom transmission gear, the driving screw rotates, and the positioning mechanism is adjusted. When adjusting the winding of the disinfection mechanism, the sliding block is moved upward to engage the driving gear with the top transmission gear, driving the winding shaft to rewind the catheter body. The entire device uses only one drive motor, which can independently drive different mechanisms by adjusting it up and down, reducing motor configuration, reducing costs, facilitating inspection and maintenance, and improving the flexibility and practicality of the device in clinical treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0025] Figure 4 It is a bottom view structural schematic diagram of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the adjustment mechanism, positioning mechanism and disinfection mechanism of the present invention;

[0027] Figure 6 It is a bottom view structural diagram of the disinfection mechanism and positioning mechanism of the present invention;

[0028] Figure 7 It is a schematic diagram of the top view of the adjustment mechanism, positioning mechanism and driving mechanism of the present invention;

[0029] Figure 8 Schematic diagram of the internal structure of the winding drum of the present invention;

[0030] Figure 9 It is a schematic diagram of the limit assembly and transmission gear structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the drive motor, drive gear and ejector structure of the present invention;

[0032] Figure 11 It is a schematic diagram of the internal structure of the winding drum of the present invention.

[0033] [Reference Signs]

[0034] 1. Connector; 2. Air pressure sensor; 3. Air pump; 4. Socket joint; 5. Pressure relief solenoid valve;

[0035] 6. Catheter device; 61. Catheter body;

[0036] 62. Positioning mechanism; 621. Rail frame; 622. Screw rod; 623. Sliding block; 624. Push frame;

[0037] 64. Adjustment mechanism; 641. Vertical rail; 642. Sliding block; 643. Limiting arm; 644. Mounting screw; 645. Limiting hole;

[0038] 65. Driving mechanism; 651. Transmission gear; 652. Driving motor; 653. Driving gear;

[0039] 69, limit assembly; 691, side frame; 692, push rod; 693, limit spring; 694, push block; 695, triangular clamp block; 696, push rod;

[0040] 66. Disinfection mechanism; 661. Winding drum;

[0041] 63. Disinfection assembly; 631. Turntable; 632. External UV lamp; 633. Rewinding reel; 634. Internal UV lamp; 635. Separating rod; 636. Base frame;

[0042] 663. Entry and exit slots; 67. Inflation balloon; 68. Plug connector.

[0043] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0044] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0045] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0046] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0047] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0048] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0049] like Figures 1 to 11 As shown, an embodiment of the present invention provides a balloon dilatation catheter for hepatobiliary surgical treatment, including a connecting seat 1, an air pump 3 is fixedly installed at one end of the connecting seat 1, a sleeve joint 4 is fixedly connected to the outer end of the connecting seat 1, the output end of the air pump 3 is connected to the sleeve joint 4, and a catheter device 6 is fixedly connected to the top of the connecting seat 1 near the sleeve joint 4.

[0050] The catheter device 6 includes a catheter body 61 and a positioning mechanism 62. The positioning mechanism 62 is installed on the top of the connecting seat 1 near the sleeve joint 4. The top of the positioning mechanism 62 is fixedly connected to a base frame 636. The front end of the base frame 636 near the connecting seat 1 is fixedly connected to an adjustment mechanism 64. The side of the adjustment mechanism 64 near the connecting seat 1 is installed with a driving mechanism 65. The upper end of the base frame 636 away from the connecting seat 1 is fixedly connected to a disinfection mechanism 66. The catheter body 61 is rolled up on the inner side of the disinfection mechanism 66. The outer end of the tube body 61 is fixedly connected to an inflation balloon 67, and an air supply microtube is provided inside the catheter body 61. A plug connector 68 is installed at one end of the catheter body 61 close to the connecting seat 1, and the plug connector 68 is inserted into the inside of the sleeve joint 4. The inflation balloon 67 is connected to the air supply microtube and the plug connector 68. When the device is working, the air pump 3 at one end of the connecting seat 1 is started, and the gas output by the air pump 3 enters the air supply microtube in the catheter body 61 through the sleeve joint 4 connected to the output end and the plug connector 68, thereby finally inflating the inflation balloon 67.

[0051] During the expansion process, the air pressure sensor 2 in the catheter device 6 monitors the air pressure data in real time. If it exceeds the preset threshold, the pressure relief solenoid valve 5 automatically opens to discharge excess gas to ensure appropriate air pressure and avoid patient discomfort. When the catheter needs to be installed, the positioning mechanism 62 is used to place the plug connector 68 on the inner side of the push frame 624, and the drive motor 652 in the drive mechanism 65 is started to drive the bottom transmission gear 651 to rotate, driving the screw 622 to rotate, so that the sliding block 623 in the rail frame 621 slides, and the push frame 624 is pushed to accurately insert the plug connector 68 into the sleeve connector 4 to achieve a stable connection. When disassembling, the drive motor 652 is reversed to complete the process. To store and disinfect the catheter, adjust the adjustment mechanism 64 so that the drive motor 652 of the drive mechanism 65 drives the drive gear 653 to rotate, driving the upper transmission gear 651, driving the turntable 631 inside the take-up drum 661 to rotate, and the catheter body 61 is reeled into the disinfection mechanism 66 through the reel-up shaft 633. At this time, the external ultraviolet lamp 632 and the internal ultraviolet lamp 634 in the disinfection mechanism 66 are started to perform all-round sterilization on the catheter body 61. When the catheter needs to be used, the drive motor 652 is rotated in the opposite direction to release the catheter. The entire device realizes the functions of air pressure control, catheter disassembly and assembly, storage and disinfection through the coordinated work of various parts.

[0052] like Figures 1 to 4 As shown, a pressure relief solenoid valve 5 is fixedly connected to the front side of the connecting seat 1 near one end of the sleeve joint 4, and an air pressure sensor 2 is fixedly connected to the top of the pressure relief solenoid valve 5. The detection end of the air pressure sensor 2 is arranged inside the connecting seat 1. During use, when the air pump 3 is started, the gas is transported to the sleeve joint 4 through the connecting seat 1, and then flows to the catheter body 61 to supply air to the inflation balloon 67. At this time, the detection end of the air pressure sensor 2 is located inside the connecting seat 1, and the gas pressure data flowing through the connecting seat 1 is monitored in real time. Once it is detected that the air pressure exceeds a preset safety threshold, it indicates that the current air pressure may cause the inflation balloon 67 to over-expand, thereby causing discomfort to the patient or even medical risks. The air pressure sensor 2 feeds back this signal, triggering the pressure relief solenoid valve 5 to automatically open, and quickly discharge the excess gas in the connecting seat 1, so that the air pressure in the connecting seat 1 drops and is maintained within an appropriate range, ensuring that the entire balloon expansion process is carried out under safe and stable air pressure conditions, effectively avoiding the adverse consequences caused by abnormal air pressure.

[0053] like Figures 5 to 8As shown, the positioning mechanism 62 includes a rail frame 621, which is fixedly connected to the top of the connecting seat 1 near the side of the sleeve joint 4, and the internal rotation of the rail frame 621 is connected to a screw rod 622, and the outer surface of the screw rod 622 is threadedly connected to a sliding block 623, and the bottom of the sliding block 623 is fixedly connected to a push frame 624, and the front shape of the push frame 624 is set in a hook shape, and the cross-sectional shape of the plug joint 68 is set in an I-shaped shape. The plug joint 68 is placed inside the push frame 624. When the catheter needs to be installed, the drive motor 652 is started, and the drive motor 652 drives the transmission gear 651 connected to the screw rod 622 to rotate, and the screw rod 622 starts to rotate inside the rail frame 621. Since the outer surface of the screw rod 622 is threadedly connected to the sliding block 623 The rotation of the screw rod 622 drives the sliding block 623 to slide along a predetermined direction inside the rail frame 621. The push frame 624 fixedly connected to the bottom of the sliding block 623 will move synchronously with the movement of the sliding block 623. The front of the push frame 624 is hook-shaped, and an I-shaped plug connector 68 is placed inside. The movement of the push frame 624 pushes the plug connector 68 toward the sleeve connector 4 until the plug connector 68 is accurately inserted into the sleeve connector 4, completing the installation of the catheter and achieving a stable connection. When the catheter needs to be disassembled, the drive motor 652 runs in reverse, driving the screw rod 622 to rotate in the opposite direction, and the sliding block 623 and the push frame 624 move in opposite directions, and the plug connector 68 is smoothly pulled out from the sleeve connector 4 to complete the disassembly operation. The whole process is convenient and fast, effectively simplifying the disassembly and assembly process of the catheter.

[0054] like Figures 6 to 8 and Figures 9 and 10 As shown, the adjustment mechanism 64 includes a vertical rail 641, which is fixedly connected to the front end of the side of the base 636 close to the connecting seat 1, and the internal sliding connection of the vertical rail 641 is provided with a sliding block 642, and the outer side of the sliding block 642 is fixedly connected to the limiting arm 643, and the outer side of the limiting arm 643 is provided with a mounting screw 644, and the end of the limiting arm 643 away from the mounting screw 644 is connected to the driving mechanism 65, and the mounting screw 644 is set to a hand-tightened screw, and limiting holes 645 are provided at the upper and lower ends of the side of the vertical rail 641 close to the mounting screw 644, and the end of the mounting screw 644 is inserted into the inside of the limiting hole 645.

[0055] The driving mechanism 65 includes a transmission gear 651, a limiting assembly 69 and a driving motor 652. The driving motor 652 is fixedly connected to the end of the limiting arm 643 away from the mounting screw 644. The output end of the driving motor 652 passes through the limiting arm 643 and is fixedly connected to the driving gear 653. The transmission gear 651 is rotatably connected to the lower end of the base 636 close to the connecting seat 1 and the end of the disinfection mechanism 66 close to the connecting seat 1. The transmission gear 651 at the bottom is fixedly connected to the end of the screw rod 622. The limiting assembly 69 is fixedly installed on the lower end of the side of the base 636 close to the connecting seat 1 and the upper end of the side of the disinfection mechanism 66 close to the connecting seat 1.

[0056] The limiting assembly 69 includes a side frame 691 and a top rod 692. The side frame 691 is fixedly connected to the lower end of the base frame 636 on the side close to the connecting seat 1 and the upper end of the winding drum 661 on the side close to the connecting seat 1. The inside of the side frame 691 is fixedly connected to a limiting spring 693. The end of the limiting spring 693 is fixedly connected to a push block 694. The inner side of the push block 694 is fixedly connected to a triangular clamping block 695. The end of the triangular clamping block 695 is inserted into the inner side of the tooth groove of the transmission gear 651. The top rod 692 is fixedly connected to the top and bottom of the drive motor 652. The outer side of the push block 694 is fixedly connected to a push rod 696. The adjustment mechanism 64 and the drive mechanism 65 work together to realize flexible control of the positioning mechanism 62 and the disinfection mechanism 66.

[0057] The vertical rail 641 of the adjustment mechanism 64 is fixed to the front end of the base frame 636, and the sliding block 642 can slide in the vertical rail 641 and is connected to the limit arm 643 on the outside. The limit arm 643 is connected to the vertical rail 641 through a hand-tightened installation screw 644, and the end of the screw is inserted into the limit hole 645 to fix the position of the sliding block 642. When it is necessary to control the positioning mechanism 62 to disassemble and assemble the catheter, loosen the installation screw 644, move the sliding block 642 downward, drive the limit arm 643 and the drive motor 652 downward, and the drive motor 652 moves downward to drive the top rod 692 at its bottom to move. At this time, it can push the push rod 696. As the push rod 696 moves, the push rod 696 moves downward to squeeze the push block 694 to compress the limit spring 693, and as the push block 694 moves downward, it can drive the triangular block 695 to disengage from the tooth groove of the bottom transmission gear 651, thereby releasing its limit.

[0058] At the same time, the driving gear 653 at the output end of the driving motor 652 meshes with the bottom transmission gear 651, and the driving motor 652 is started. The driving gear 653 drives the bottom transmission gear 651 to rotate, and then drives the screw rod 622 to rotate, so that the sliding block 623 and the push rack 624 in the positioning mechanism 62 move, and the disassembly and assembly of the plug connector 68 and the sleeve connector 4 is completed. When it is necessary to control the disinfection mechanism 66 to rewind the catheter, the sliding block 642 is moved upward, the bottom limit spring 693 is reset, and the triangular block 695 is pushed to insert into the tooth groove of the bottom transmission gear 651, locking the bottom transmission gear 651. and the screw rod 622. At the same time, the top push rod 692 pushes the upper push rod 696, causing the push block 694 to compress the top limit spring 693, and the top transmission gear 651 is separated from the triangular block 695. The driving gear 653 is engaged with the top transmission gear 651, and the driving motor 652 is started to drive the top transmission gear 651 to drive the winding shaft 633 of the turntable 631 in the winding drum 661 to rotate, completing the winding of the catheter body 61. The whole process is adjusted by adjusting the connection state of the driving mechanism 65 through the adjustment mechanism 64, and using one driving motor 652 to realize independent driving of different mechanisms.

[0059] like Figures 1 to 6 and Figure 11 As shown, the disinfection mechanism 66 includes a winding drum 661, which is fixedly connected to the upper end of the side of the base 636 away from the connecting seat 1, and the transmission gear 651 located at the upper end is rotatably connected to the middle part of the side of the winding drum 661 close to the connecting seat 1. The disinfection component 63 is movably installed inside the winding drum 661, and the catheter body 61 is wound on the outer surface of the disinfection component 63. The transmission gear 651 located at the upper end is connected to the outer side of the disinfection component 63, and the middle of the top and the middle of the bottom of the winding drum 661 are provided with entry and exit slots 663, and the catheter body 61 passes through the entry and exit slots 663.

[0060] The disinfection component 63 includes a turntable 631 and an external ultraviolet lamp 632. The turntable 631 is rotatably connected to the two ends of the inner side of the reel 661. The upper and lower ends of the inner side of the turntable 631 are rotatably connected to the reel 633. The catheter body 61 is wound around the outer surface of the reel 633. The turntable 631 near the connecting seat 1 is connected to the transmission gear 651 at the top. The external ultraviolet lamps 632 are arranged in a ring with equal spacing and fixedly connected to the inside of the reel 661. The line lamp 632 is arranged on the outside of the rolled-up catheter body 61, and the middle part between the inner sides of the turntable 631 is fixedly connected with an internal ultraviolet lamp 634. The internal ultraviolet lamp 634 is arranged in the middle of the rolled-up catheter body 61. The inner sides of the turntable 631 are fixedly connected with partition rods 635 at equal intervals. The partition rods 635 are arranged between the outside of the internal ultraviolet lamp 634 and the rolled-up catheter body 61. The disinfection mechanism 66 is mainly responsible for the storage and disinfection of the catheter body 61.

[0061] The winding drum 661 is fixed to the upper end of the side of the base 636 away from the connecting seat 1, and the transmission gear 651 at the upper end is rotatably connected to the middle part of the side of the winding drum 661 close to the connecting seat 1. When the driving motor 652 is engaged with the upper transmission gear 651 through the adjustment mechanism 64, the driving motor 652 drives the driving gear 653 to rotate, thereby driving the upper transmission gear 651 to rotate. The rotation of the upper transmission gear 651 drives the turntable 631 connected thereto to rotate inside the winding drum 661, and the winding shaft 633 inside the turntable 631 rotates accordingly, thereby realizing the winding or unwinding operation of the catheter body 61 wound around its outer surface. The catheter body 61 is opened between the top and bottom of the winding drum 661. In terms of disinfection, the external ultraviolet lamps 632 arranged in a ring at equal intervals inside the winding drum 661 irradiate and disinfect the outer surface of the catheter body 61 after it is wound; and the internal ultraviolet lamp 634 fixed on the middle part of the inner side of the turntable 631 irradiates and disinfects the middle part of the catheter body 61 after it is wound. The dividing rods 635 fixedly connected at equal intervals between the inner sides of the turntable 631, on the one hand, play the role of a supporting structure, and on the other hand, separate the catheter body 61 from the internal ultraviolet lamp 634, thereby ensuring that the internal ultraviolet lamp 634 effectively disinfects the catheter body 61 and avoids direct contact that affects the disinfection effect, thereby finally achieving all-round and efficient disinfection of the catheter body 61 after it is wound.

[0062] The workflow of the technical solution provided by the present invention is as follows:

[0063] The air pump 3 is started to supply air. The gas output by the air pump 3 causes the expansion balloon 67 to expand. During the expansion process of the expansion balloon 67, the air pressure sensor 2 detects the air pressure data in real time. When it is detected that the air pressure exceeds the preset threshold, the pressure relief solenoid valve 5 automatically opens to discharge the excess gas, ensuring that the air pressure inside the catheter is always maintained in an appropriate range, effectively avoiding patient discomfort caused by excessive expansion of the expansion balloon 67.

[0064] During the storage and disinfection of the catheter, the entire catheter body 61 can be rolled up inside the winding drum 661. When the catheter body 61 is rolled up, the external ultraviolet lamp 632 and the internal ultraviolet lamp 634 are started. The external ultraviolet lamp 632 is located on the outer surface of the rolled-up catheter body 61, and the internal ultraviolet lamp 634 is located on the inner surface of the rolled-up catheter body 61. The two work together to perform all-round irradiation and sterilization on the rolled-up catheter body 61, significantly improving the sterilization efficiency of the device.

[0065] In addition, the drive motor 652 drives the drive gear 653 to rotate, driving the transmission gear 651 at the upper end to operate synchronously, and then drives the turntable 631 inside the winding drum 661 to rotate. The rotation of the turntable 631 drives the winding shaft 633 to reel in the catheter body 61, giving the device a good winding function. When the catheter needs to be used, the drive motor 652 is started to rotate in the opposite direction, and the reeled catheter body 61 can be loosened and released. Through this series of designs, the device not only has an efficient disinfection function, effectively reducing the risk of secondary infection to the human body, but also the reeled catheter is easy for medical staff to operate and carry, greatly improving the convenience of use.

[0066] The positioning mechanism 62 is provided to greatly optimize the installation and removal process of the catheter. During installation, the plug connector 68 is placed inside the push frame 624, and then the drive motor 652 is started, driving the transmission gear 651 at the bottom to rotate. The rotation of the transmission gear 651 drives the screw 622 to rotate. The rotation of the screw 622 drives the sliding block 623 inside the track frame 621 to slide along the predetermined track. The movement of the sliding block 623 drives the push frame 624 to move synchronously. The movement of the push frame 624 pushes the plug connector 68 inside it to be accurately inserted into the socket 4. The pressure applied by the push frame 624 ensures that the plug connector 68 is stably connected to the top of the socket 4.

[0067] When the catheter is removed, the drive motor 652 is started to run in reverse, driving the transmission gear 651 at the bottom to rotate in the reverse direction. The reverse rotation of the transmission gear 651 drives the screw rod 622 to rotate in the reverse direction. The reverse rotation of the screw rod 622 causes the sliding block 623 to move outward inside the rail frame 621. The outward movement of the sliding block 623 drives the push rack 624 to move outward synchronously. The outward movement of the push rack 624 smoothly pulls the plug connector 68 out of the sleeve connector 4. This design avoids the tedious operation of rotating the entire catheter body 61 and the plug connector 68 for disassembly and assembly in the traditional way. Medical staff only need to adjust the positioning mechanism 62 to quickly complete the separation of the plug connector 68 and the sleeve connector 4, thereby realizing rapid replacement and disassembly of the catheter body 61.

[0068] This device achieves efficient control of the disinfection mechanism 66 and the positioning mechanism 62 through the coordinated cooperation of the adjustment mechanism 64 and the driving mechanism 65. When there is no need to drive the disinfection mechanism 66 and the positioning mechanism 62, the sliding block 642 inside the vertical rail 641 is slid to the middle position of the vertical rail 641, and then the mounting screw 644 is tightened so that the mounting screw 644 fits tightly against the vertical rail 641, thereby fixing the sliding block 642. At this time, the driving gear 653 at the end of the driving motor 652 is disengaged from the transmission gear 651, ensuring that the device is in standby state.

[0069] When it is necessary to disassemble the catheter body 61, the mounting screw 644 is loosened and the sliding block 642 is adjusted to move downward. The downward movement of the sliding block 642 drives the top rod 692 at its bottom to move downward synchronously. The downward movement of the top rod 692 pushes the push rod 696 on the outside of the push block 694 to move outward. The outward movement of the push rod 696 squeezes the limit spring 693 to shrink it. In this process, the outward movement of the push block 694 causes the triangular clamping block 695 to disengage from the tooth groove of the transmission gear 651, releasing the limit on the bottom transmission gear 651. At the same time, as the sliding block 642 moves downward, the driving gear 653 on the driving motor 652 contacts and engages with the bottom transmission gear 651 and is in a meshing connection state. The driving motor 652 is started, and the driving gear 653 drives the bottom transmission gear 651 to rotate, thereby driving the screw rod 622 to rotate, thereby realizing the adjustment of the positioning mechanism 62, making it convenient for medical personnel to quickly disassemble and assemble the plug connector 68 and the catheter body 61.

[0070] When it is necessary to adjust the disinfection mechanism 66 for the winding operation, the adjustment sliding block 642 is moved upward. During the upward movement of the sliding block 642, the limit spring 693 at the bottom is reset, pushing the triangular block 695 at its end to move upward and insert it into the tooth groove of the bottom transmission gear 651, thereby achieving the clamping and fixing of the bottom transmission gear 651 and the screw rod 622. At the same time, the upward movement of the sliding block 642 drives the top push rod 692 to push the upper end push rod 696 to move outward. The outward movement of the push rod 696 squeezes the limit spring 693 at the top, prompting the top transmission gear 651 to move downward. Separated from the triangular block 695, the driving gear 653 is now engaged with the transmission gear 651 at the top, and the driving motor 652 is started to drive the transmission gear 651 at the top to drive the winding shaft 633 inside the turntable 631 inside the winding drum 661 to reel in the catheter body 61. During use, the mounting screw 644 is a hand-tightened screw, which can improve the convenience of its overall operation, and the limiting hole 645 can accommodate the end of the mounting screw 644, which can improve the stability of the mounting screw 644 when installed, thereby ensuring the stability of the driving motor 652 during driving.

[0071] It can be seen that this device can independently drive the disinfection mechanism 66 and the positioning mechanism 62 to operate only by adjusting the up and down of a drive motor 652, without the need to configure multiple motors. This not only reduces the cost of using the device, but also makes subsequent inspection and maintenance work more convenient.

[0072] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0073] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A balloon dilatation catheter for hepatobiliary surgery, comprising a connecting seat, characterized in that: An air pump is fixedly mounted on one end of the connecting base, a socket is fixedly connected to the outer end of the connecting base, the output end of the air pump is connected to the socket, and a conduit device is fixedly connected to the top of the connecting base near the socket; The catheter device includes a catheter body and a positioning mechanism, the positioning mechanism is installed on the side of the top of the connecting seat close to the sleeve joint, the top of the positioning mechanism is fixedly connected to a base frame, the front end of the base frame close to the connecting seat is fixedly connected to an adjustment mechanism, the side of the adjustment mechanism close to the connecting seat is installed with a driving mechanism, the upper end of the base frame away from the connecting seat is fixedly connected to a disinfection mechanism, the catheter body is retracted on the inner side of the disinfection mechanism, the outer end of the catheter body is fixedly connected to an expansion balloon, an air supply microtube is provided inside the catheter body, a plug connector is installed at one end of the catheter body close to the connecting seat, the plug connector is inserted into the sleeve joint, and the expansion balloon is connected to the plug connector through the air supply microtube; The driving mechanism includes a transmission gear, a limiting assembly and a driving motor. The driving motor is fixedly connected to the end of the limiting arm away from the mounting screw. The output end of the driving motor passes through the limiting arm and is fixedly connected to the driving gear. The transmission gear is rotatably connected to the lower end of the base close to the connecting seat and the end of the disinfection mechanism close to the connecting seat. The transmission gear at the bottom and the end of the screw are fixedly connected. The limiting assembly is fixedly installed on the lower end of the base close to the connecting seat and the upper end of the disinfection mechanism close to the connecting seat.

2. The balloon dilatation catheter for hepatobiliary surgery according to claim 1, characterized in that: A pressure relief solenoid valve is fixedly connected to the front side of the connecting seat near one end of the sleeve joint, and an air pressure sensor is fixedly connected to the top of the pressure relief solenoid valve. The detection end of the air pressure sensor is arranged inside the connecting seat.

3. The balloon dilatation catheter for hepatobiliary surgery according to claim 1, characterized in that: The positioning mechanism includes a rail frame, which is fixedly connected to the top of the connecting seat near the side of the sleeve joint. The rail frame is rotatably connected to a screw rod inside, and the outer surface of the screw rod is threadedly connected to a sliding block. The bottom of the sliding block is fixedly connected to a push frame, the front shape of the push frame is a hook shape, the cross-section shape of the plug joint is an I-shape, and the plug joint is placed inside the push frame.

4. The balloon dilatation catheter for hepatobiliary surgery according to claim 3, characterized in that: The adjustment mechanism includes a vertical rail, which is fixedly connected to the front end of the base frame near the connecting seat. The interior of the vertical rail is slidably connected to a sliding block, the outer side of the sliding block is fixedly connected to a limiting arm, and the outer side of the limiting arm is provided with a mounting screw. The end of the limiting arm away from the mounting screw is connected to the driving mechanism.

5. The balloon dilatation catheter for hepatobiliary surgery according to claim 4, characterized in that: The mounting screw is configured as a hand-tightening screw, and limiting holes are provided at both upper and lower ends of one side of the vertical rail close to the mounting screw, and the ends of the mounting screw are inserted into the limiting holes.

6. The balloon dilatation catheter for hepatobiliary surgery according to claim 1, characterized in that: The disinfection mechanism includes a winding drum, which is fixedly connected to the upper end of the side of the base away from the connecting seat, and the transmission gear located at the upper end is rotatably connected to the middle part of the side of the winding drum close to the connecting seat. A disinfection component is movably installed inside the winding drum, and the catheter body is wound on the outer surface of the disinfection component. The transmission gear located at the upper end is connected to the outer side of the disinfection component. Entry and exit slots are opened in the middle of the top and the middle of the bottom of the winding drum, and the catheter body passes through the entry and exit slots.

7. The balloon dilatation catheter for hepatobiliary surgery according to claim 6, characterized in that: The disinfection assembly includes a turntable and an external ultraviolet lamp. The turntable is rotatably connected to the two ends inside the winding drum. The upper and lower ends inside the turntable are rotatably connected to the winding shaft. The catheter body is wrapped around the outer surface of the winding shaft. The turntable close to the connecting seat is connected to the transmission gear located at the top. The external ultraviolet lamps are arranged in a ring shape with equal intervals and fixedly connected to the inside of the winding drum. The external ultraviolet lamp is set on the outside of the wound catheter body.

8. The balloon dilatation catheter for hepatobiliary surgery according to claim 7, characterized in that: An inner ultraviolet lamp is fixedly connected to the middle of the inner sides of the turntable, and the inner ultraviolet lamp is arranged in the middle of the rolled-up catheter body. Partition rods are fixedly connected at equal intervals between the inner sides of the turntable, and the partition rods are arranged between the outer side of the inner ultraviolet lamp and the rolled-up catheter body.

9. The balloon dilatation catheter for hepatobiliary surgery according to claim 7, characterized in that: The limiting assembly includes a side frame and a push rod, the side frames are respectively fixedly connected to the lower end of the base frame close to the connecting seat and the upper end of the winding drum close to the connecting seat, the inside of the side frame is fixedly connected to a limiting spring, the end of the limiting spring is fixedly connected to a push block, the inner side of the push block is fixedly connected to a triangular clamping block, the end of the triangular clamping block is inserted into the inner side of the tooth groove of the transmission gear, the push rod is fixedly connected to the top and bottom of the driving motor, and the outer side of the push block is fixedly connected to a push rod.

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