A combined tube supporting core rod extraction device for a choledochoscope

Abstract

The application belongs to the technical field of medical devices, and particularly relates to a gall duct mirror composite tube supporting core rod extraction device, which comprises a supporting frame, a lower pressing block fixed to the supporting frame, a lifting driving mechanism and a driving assembly; the lifting driving mechanism comprises a servo electric cylinder and a pressure sensor, the servo electric cylinder is arranged below the supporting frame, an output end of the servo electric cylinder penetrates through the supporting frame and is connected with the pressure sensor, and the other end of the pressure sensor is connected with an upper pressing block assembly; the upper pressing block assembly can reciprocate vertically to the top surface direction of the lower pressing block, and a space for accommodating the gall duct mirror composite tube is formed between the upper pressing block assembly and the lower pressing block; a moving clamping assembly is slidably arranged on the driving assembly, an axis of the moving clamping assembly is collinear with an axis of the accommodating space and the moving clamping assembly can reciprocate along the direction, and the moving clamping assembly has a clamping part for clamping the supporting core rod. The servo electric cylinder and the pressure sensor are used for cooperatively controlling the pressing force, the supporting core rod extraction operation is automatically completed, the pipe material is effectively prevented from being damaged due to pressing, and the production quality and efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a device for removing the mandrel support of a cholangioscope composite tube. Background Technology

[0002] In the field of medical devices, there is a demand for the processing of cholangioscopic composite tubes. As a key component of cholangioscopes, these composite tubes have a slender shape and a three-layer structure, consisting of an inner lining layer, a metal braided wire layer, and an outer covering layer from the inside out. They are relatively soft. During the manufacturing process of the cholangioscopic composite tube, a support mandrel must be used to support it in order to ensure that the composite tube can be shaped and formed. After the composite tube is formed, the support mandrel needs to be removed from the composite tube to complete the processing of the cholangioscopic composite tube and meet the needs of subsequent assembly and clinical use of the cholangioscope.

[0003] In the existing technology, the method for removing the support core rod from the choledochoscope composite tube after molding is to manually pull out the support core rod directly. That is, the operator holds the part of the support core rod that is exposed in the choledochoscope composite tube by hand and applies a pulling force to pull the support core rod out of the choledochoscope composite tube, thereby achieving the separation of the support core rod from the choledochoscope composite tube.

[0004] However, manually pulling out the support mandrel requires the operator to continuously apply pulling force to the support mandrel throughout the entire operation, and pulling out a single support mandrel takes a certain amount of time, resulting in a time-consuming, labor-intensive, and inefficient operation. More importantly, because the choledochoscope composite tube is made of a soft material, the force applied by the hand during manual operation is small and concentrated, making it very easy for excessive or uneven force to cause deformation or structural damage to the choledochoscope composite tube, resulting in product scrap and making it difficult to guarantee the yield rate. Utility Model Content

[0005] This application provides a device for removing the support mandrel of a choledochoscope composite tube, in order to solve the technical problems of the existing choledochoscope composite tube support mandrel being time-consuming and laborious to remove manually, and the deformation or structural damage of the choledochoscope composite tube caused by excessive or uneven force.

[0006] To achieve the above objectives, this application provides a device for removing the mandrel support from a cholangioscopic composite tube, comprising:

[0007] Support frame; a downward pressure block is fixedly installed on the support frame;

[0008] The lifting drive mechanism includes a servo electric cylinder and a pressure sensor. The servo electric cylinder is fixedly installed below the support frame, and its power output end passes through the support frame and extends to the top of the support frame. The pressure sensor is located above the support frame, and one end of the pressure sensor is fixedly connected to the power output end of the servo electric cylinder. The other end of the pressure sensor is connected to an upper pressure block assembly. The upper pressure block assembly reciprocates along a direction perpendicular to the top surface of the lower pressure block. When the upper pressure block assembly approaches the lower pressure block, a space for accommodating the cholangioscope composite tube is formed between the bottom surface of the upper pressure block assembly and the top surface of the lower pressure block.

[0009] A drive assembly is fixedly mounted on a support frame. A movable clamping assembly is slidably mounted on the drive assembly. The axis of the movable clamping assembly is collinear with the axis of the space accommodating the cholangioscopic composite tube. The movable clamping assembly reciprocates along the axis of the space accommodating the cholangioscopic composite tube. The movable clamping assembly has a clamping part. When the movable clamping assembly is in the clamping position, the clamping part of the movable clamping assembly clamps the support mandrel.

[0010] Preferably, the upper pressure block assembly includes: an upper pressure block and a buffer pad; the number of upper pressure blocks and buffer pads is six; the six upper pressure blocks are evenly distributed along the axis parallel to the space accommodating the cholangioscope composite tube; and a buffer pad is fixedly provided on the bottom surface of each upper pressure block.

[0011] Preferably, the lifting drive mechanism further includes: cylinders; the number of cylinders is six; the cylinder bodies of the six cylinders are fixedly connected to the end of the pressure sensor away from the servo cylinder via a connecting plate; the output ends of the six cylinders are respectively fixedly connected to the tops of the six upper pressure blocks.

[0012] Preferably, the device further includes guide rods; there are two guide rods; the two guide rods are symmetrically and vertically fixed on the support frame and are located on both sides of the space accommodating the cholangioscope composite tube; both guide rods pass through corresponding guide holes on the connecting plate.

[0013] Preferably, the driving component includes:

[0014] The slide base is fixedly mounted on the support frame;

[0015] The guide rail is fixedly mounted on the slide base.

[0016] The lead screw is mounted on the slide base via a bearing seat and is parallel to the guide rail.

[0017] The drive motor is fixedly mounted at one end of the slide base, and the output shaft of the drive motor is coaxially connected to the lead screw.

[0018] Preferably, the movable clamping assembly includes: a slider; the slider is fixedly connected to the lead screw nut on the lead screw; the slider and the guide rail form a sliding pair; a first adjusting cylinder; the first adjusting cylinder is fixedly installed on the slider; the output shaft of the first adjusting cylinder is connected to the gripper; the gripper faces the space accommodating the cholangioscope composite tube.

[0019] Preferably, the output shaft of the first regulating cylinder is detachably connected to the gripper via a quick-change connector.

[0020] Preferably, the device further includes: a mandrel collecting groove; the mandrel collecting groove is fixedly placed on the support frame, and the mandrel collecting groove is located below the moving path of the movable clamping assembly.

[0021] Preferably, the device further includes a controller; the controller is electrically connected to the lifting drive mechanism, the drive assembly, and the moving clamping assembly.

[0022] Preferably, a buffer pad is fixedly provided on the top surface of the pressing block.

[0023] This application provides a device for extracting the support mandrel of a cholangioscopic composite tube. A support frame provides the mounting base for each component. A lower pressure block fixed to the support frame and an upper pressure block assembly driven by a lifting drive mechanism form a space to accommodate the cholangioscopic composite tube, achieving positioning and clamping of the tube. The lifting drive mechanism includes a servo cylinder and a pressure sensor. The servo cylinder is fixedly mounted below the support frame, with its power output end penetrating the frame. The pressure sensor is located above the support frame, with one end fixedly connected to the power output end of the servo cylinder and the other end connected to the upper pressure block assembly. Combined with the drive assembly fixed to the support frame, a sliding movable clamping assembly reciprocates along the axis of the accommodating space. This allows the movable clamping assembly to clamp the support mandrel at the clamping position and then move away from the cholangioscopic composite tube, thus extracting the support mandrel. This application replaces manual extraction of the support mandrel with mechanized operation, solving the problems of time-consuming and labor-intensive manual operation, and the risk of cholangioscopic composite tube scrapping due to concentrated force. It mechanizes the extraction of the support mandrel, improving processing efficiency, reducing processing difficulty and workload, decreasing product scrap rate, and ensuring stable processing of the cholangioscopic composite tube. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A three-dimensional structural schematic diagram of the cholangioscope composite tube support mandrel extraction device provided in the embodiments of this application;

[0026] Figure 2This is a schematic diagram of the structure of the cholangioscope composite tube support mandrel extraction device provided in the embodiments of this application.

[0027] Illustration:

[0028] The components include: 1. Support frame; 2. Lower pressure block; 3. Lifting drive mechanism; 31. Servo electric cylinder; 32. Pressure sensor; 33. Cylinder; 34. Connecting plate; 4. Upper pressure block assembly; 41. Upper pressure block; 42. Buffer pad; 5. Drive assembly; 51. Slide base; 52. Guide rail; 53. Lead screw; 54. Drive motor; 6. Moving clamping assembly; 61. Slider; 62. First adjusting cylinder; 63. Gripper; 7. Guide rod; 8. Core rod collection groove; 9. Controller. Detailed Implementation

[0029] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application.

[0030] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0031] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0032] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0033] In the existing technology, the method for removing the support core rod from the choledochoscope composite tube after molding is to manually pull out the support core rod directly. That is, the operator holds the part of the support core rod that is exposed in the choledochoscope composite tube by hand and applies a pulling force to pull the support core rod out of the choledochoscope composite tube, thereby achieving the separation of the support core rod from the choledochoscope composite tube.

[0034] However, manually pulling out the support mandrel is time-consuming and physically demanding, resulting in high work intensity. Furthermore, the contact area between the hand and the support mandrel is small and the force is concentrated. Since the choledochoscope composite tube is made of soft material, improper hand force during manual removal can easily deform the tube, leading to product scrap. This results in low processing efficiency, high processing difficulty, and a high product scrap rate.

[0035] To address the aforementioned issues, this application provides a device for removing the mandrel support from a cholangioscope composite tube.

[0036] The following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0037] In some embodiments, see Figures 1-2 The cholangioscope composite tube support mandrel extraction device includes: a support frame 1, a lower pressure block 2, a lifting drive mechanism 3, an upper pressure block assembly 4, a drive assembly 5, and a moving clamping assembly 6.

[0038] The support frame 1 is the basic load-bearing component of the entire device. Its core function is to provide a stable installation benchmark and support carrier for all functional components such as the lower pressure block 2, the lifting drive mechanism 3, and the drive assembly 5, ensuring that each component maintains the preset relative position relationship during operation.

[0039] The lower pressure block 2 is fixed on the support frame 1, with its top surface remaining flat. The lower pressure block 2 provides bottom support for the cholangioscopic composite tube. The lower pressure block 2 needs to withstand the pressure of the upper pressure block assembly 4, and its structural strength must be compatible with the pressure to avoid deformation during pressing. Its top surface shape can be designed as an arc or a plane that fits against the outer surface of the cholangioscopic composite tube to ensure uniform force on the cholangioscopic composite tube. At the same time, the installation position must be precise to ensure that it is collinear with the axis of the moving clamping assembly 6, providing a positional reference for the withdrawal of the support mandrel.

[0040] The lifting drive mechanism 3 is fixed on the support frame 1. The lifting drive mechanism 3 drives the upper pressure block assembly 4 to reciprocate in a direction perpendicular to the top surface of the lower pressure block 2, thereby opening and closing the upper pressure block assembly 4 and the lower pressure block 2. The output shaft of the lifting drive mechanism 3 must be firmly connected to the upper pressure block assembly 4 to prevent loosening during movement, ensuring that the upper pressure block assembly 4 can apply pressure smoothly and stably fix the cholangioscope composite tube.

[0041] The lifting drive mechanism 3 is the power unit that drives the upper pressure block assembly 4 to achieve lifting and lowering movements. It includes a servo cylinder 31 and a pressure sensor 32. The servo cylinder 31 is fixedly installed below the support frame 1, and its power output end passes through the support frame 1 and extends to the top of the support frame 1. The servo cylinder 31 features high motion precision and controllable driving force, and can adjust the lifting speed and stroke of the upper pressure block assembly 4 according to the specifications of the cholangioscopic composite tube to meet different clamping requirements. The pressure sensor 32 is located above the support frame 1, with one end fixedly connected to the power output end of the servo cylinder 31 and the other end connected to the upper pressure block assembly 4. Its function is to detect the clamping pressure of the upper pressure block assembly 4 on the cholangioscopic composite tube in real time, and adjust the output force of the servo cylinder 31 through feedback signals to prevent abnormal pressure from damaging the cholangioscopic composite tube.

[0042] The drive assembly 5, fixed to the support frame 1, is the power source for the movable clamping assembly 6, providing it with reciprocating motion power along the axis of the space containing the choledochoscope composite tube. The drive assembly 5 must be precisely positioned to ensure that the axis of motion of the movable clamping assembly 6 is collinear with the axis of the space containing the choledochoscope composite tube, thus guaranteeing the accuracy of the support mandrel extraction.

[0043] The movable clamping assembly 6 is the core actuator for clamping and retracting the support mandrel, and it is slidably mounted on the drive assembly 5. Its axis is collinear with the axis of the space accommodating the cholangioscopic composite tube. The movable clamping assembly 6 can reciprocate along the axial direction of the cholangioscopic composite tube space, and its range of motion must cover the entire length of the support mandrel to achieve complete extraction. Its built-in clamping part can clamp and release the support mandrel through mechanical opening and closing actions. In the clamping position, it can closely conform to the surface of the support mandrel, providing sufficient clamping force to prevent the support mandrel from falling off during extraction.

[0044] Understandably, when the cholangioscopic composite tube support mandrel extraction device is activated, the power output of the servo cylinder 31 drives the upper pressure block assembly 4 to move closer to the lower pressure block 2 via the pressure sensor 32. During the movement, the pressure sensor 32 continuously monitors the reaction force on the upper pressure block assembly 4 and transmits the pressure signal to the control unit of the device in real time. When the pressure signal shows that the pressure value reaches the preset threshold, it indicates that the upper pressure block assembly 4 has contacted the top surface of the cholangioscopic composite tube and applied a suitable clamping force. The control unit immediately sends a stop signal to the servo cylinder 31, the servo cylinder 31 stops moving, the upper pressure block assembly 4 remains in its current position, and the cholangioscopic composite tube is securely clamped between the upper pressure block assembly 4 and the lower pressure block 2.

[0045] After the cholangioscopic composite tube is clamped and fixed, the drive assembly 5 drives the movable clamping assembly 6 to slide along the axis of the accommodating space toward the cholangioscopic composite tube, so that the clamping part of the movable clamping assembly 6 is aligned with the support mandrel at the end of the composite tube. When the clamping part of the movable clamping assembly 6 reaches the end of the support mandrel, the drive assembly 5 stops driving, and the clamping part of the movable clamping assembly 6 closes to clamp the support mandrel.

[0046] After the clamping part confirms a secure grip, the drive assembly 5 reverses its direction, causing the movable clamping assembly 6 to slide away from the choledochoscope composite tube along the axis of the space accommodating the choledochoscope composite tube. Under the pulling action of the movable clamping assembly 6, the support mandrel is gradually pulled out from inside the choledochoscope composite tube. When the support mandrel is completely detached from the choledochoscope composite tube, the drive assembly 5 stops moving. At this point, the clamping part of the movable clamping assembly 6 opens to release the support mandrel.

[0047] As can be seen from the above embodiments, the choledochoscopic composite tube support mandrel extraction device provided in this solution integrates various functional components through a support frame and utilizes a servo electric cylinder and pressure sensor to form a closed-loop pressure control system, achieving controllable clamping of the choledochoscopic composite tube and effectively avoiding tube damage caused by excessive or uneven clamping force. Through the cooperation of the drive component and the moving clamping component, automatic gripping and linear extraction of the support mandrel are achieved. This device transforms the operation, which originally relied entirely on manual experience, into an automated mechanical process, solving the technical problems of low efficiency, high labor intensity, and high product scrap rate of manual operation, and improving the processing quality and efficiency of choledochoscopic composite tubes.

[0048] In some embodiments, see Figure 1 The upper pressure block assembly 4 consists of six upper pressure blocks 41, which are evenly distributed along the axis parallel to the space accommodating the choledochoscope composite tube. The spacing between adjacent upper pressure blocks 41 remains consistent to ensure that the choledochoscope composite tube receives uniform support and clamping force throughout its length. A buffer pad 42 is fixedly mounted on the bottom surface of each upper pressure block 41. The buffer pad 42 is made of a flexible, medical-grade material, such as silicone or polyurethane. This type of material can adapt to deformation when in contact with the choledochoscope composite tube, converting the rigid pressure of the upper pressure block 41 into a flexible force while increasing the contact area. Each buffer pad 42 is fixed with adhesive or fasteners, and its surface is smooth to avoid scratching the outer wall of the choledochoscope composite tube. Its core function is to isolate rigid contact and reduce the risk of pressure damage.

[0049] In some embodiments, see Figure 1 and Figure 2The lifting drive mechanism 3 also includes six cylinders 33. The six cylinders 33 are independent actuators, and their cylinder bodies are integrated and fixed via a common connecting plate 34. The connecting plate 34 is fixedly connected to the end of the pressure sensor 32 furthest from the servo cylinder 31, and the cylinder bodies of the six cylinders 33 are evenly distributed and fixedly mounted on the connecting plate 34.

[0050] The cylinder body of each cylinder 33 is connected to the connecting plate 34 by bolts to ensure a stable installation. The piston rod output ends of the six cylinders 33 are respectively fixedly connected to the tops of the six upper pressure blocks 41. The piston rod end of each cylinder 33 is connected to the top of the corresponding upper pressure block 41 by a threaded connection.

[0051] The connecting plate 34 provides a unified installation reference for the six cylinders 33, ensuring that the cylinders 33 are precisely arranged at preset intervals. The connecting plate 34 also covers the detection range of the pressure sensor 32 to the total force of the six cylinders 33, realizing unified monitoring of the overall pressure.

[0052] This structure allows each cylinder 33 to independently drive its connected upper pressure block 41 to perform a lifting stroke. When all cylinders 33 operate synchronously, the six upper pressure blocks 41 work as a whole to perform a pressing or releasing operation. When local adjustments are required, the controller can instruct the cylinder 33 at a specific location to operate individually, causing its piston rod to retract and lifting the corresponding upper pressure block 41, thereby relieving the pressure on the cholangioscope composite tube in that local area.

[0053] This embodiment provides a zoned decompression mechanism by integrating six cylinders 33 above the pressure sensor 32 via a connecting plate 34. This mechanism enables the device to dynamically respond to changes in the support state of the choledochoscope composite tube during the core-pulling process. By selectively raising the upper pressure block 41, the pressure in the emptied section is relieved, effectively preventing the flexible choledochoscope composite tube from being crushed due to local loss of internal support during core-pulling, thus improving processing reliability and product quality.

[0054] In some embodiments, see Figure 2 The device also includes guide rods 7. Two guide rods 7 are provided. The two guide rods 7 are symmetrically and vertically fixed to the support frame 1. The two guide rods 7 are located on opposite sides of the space accommodating the cholangioscope composite tube and are fixedly mounted on the support frame 1, parallel to the axis of the servo cylinder 31. Both guide rods 7 pass through corresponding guide holes on the connecting plate 34. Linear bearings or copper sleeves are installed in the guide holes to ensure that the connecting plate 34 can slide smoothly up and down along the guide rods 7. The guide rods 7 and the guide holes are fitted with a clearance fit, and the fit accuracy is controlled within a reasonable range.

[0055] This guide structure provides stable guidance for the connecting plate 34 and the six cylinders 33 mounted on it. When the servo cylinder 31 pushes the connecting plate 34 to move, the guide rod 7 ensures that the connecting plate 34 always moves smoothly in the vertical direction by limiting the radial displacement of the connecting plate 34, thus avoiding the influence of lateral forces on the pressure sensor 32.

[0056] By setting two symmetrically distributed guide rods 7, this embodiment improves the accuracy and stability of the lifting motion. The guide rods 7 effectively prevent radial displacement of the connecting plate 34 during movement, ensuring that the six upper pressure blocks 41 can synchronously and smoothly perform the pressing action, further improving the reliability and service life of the device.

[0057] In some embodiments, see Figure 1 and Figure 2 The drive assembly 5 is the core power structure that drives the moving clamping assembly 6 to reciprocate along the axis of the space containing the cholangioscope composite tube. It includes a slide base 51, a guide rail 52, a lead screw 53, and a drive motor 54. These components work together to provide stable and precise linear motion power for the moving clamping assembly 6. The slide base 51, as the basic load-bearing component of the drive assembly 5, is fixedly mounted on the support frame 1. It must have sufficient structural strength to support the weight of the guide rail 52, lead screw 53, and drive motor 54, while also bearing the forces generated when the moving clamping assembly 6 moves.

[0058] The guide rail 52 is fixedly mounted on the slide base 51. Its function is to guide the movement of the movable clamping assembly 6, ensuring that the movable clamping assembly 6 always slides along the preset axis. The guide rail 52 is a linear guide rail, forming a high-precision sliding fit with the slider 61 of the movable clamping assembly 6. The sliding friction is small, ensuring smooth movement of the movable clamping assembly 6. The installation of the guide rail 52 on the slide base 51 ensures that it is parallel to the spatial axis accommodating the cholangioscope composite tube, and the length of the guide rail 52 needs to be determined according to the maximum stroke of the movable clamping assembly 6, ensuring that the movable clamping assembly 6 can complete the entire stroke required for the extraction of the support mandrel.

[0059] The lead screw 53 is mounted on the slide base 51 via a bearing seat. The bearing seat reduces the frictional resistance during the rotation of the lead screw 53, ensuring smooth operation. The lead screw 53 remains parallel to the guide rail 52, and its rotational motion converts the power of the drive motor 54 into the linear motion of the moving clamping assembly 6.

[0060] The drive motor 54 is fixedly mounted on one end of the slide base 51, and its output shaft is coaxially connected to the lead screw 53 to provide power for the rotation of the lead screw 53.

[0061] Understandably, in this embodiment, the sliding table base 51 provides the mounting foundation, the guide rail 52 provides motion guidance, the lead screw 53 completes the power conversion, and the drive motor 54 provides power output. Together, they drive the moving clamping assembly 6 to reciprocate along the axis of the space accommodating the cholangioscope composite tube, providing power support for the precise extraction and repositioning of the support mandrel. The rotational power of the drive motor 54 is converted into linear power by the lead screw 53, and the guide rail 52 ensures the precise movement direction of the moving clamping assembly 6. The synergistic effect of both ensures that the moving clamping assembly 6 can stably and accurately complete the extraction of the support mandrel. Combined with the pressing action of the upper pressure block assembly 4 and the lower pressure block 2, the extraction of the support mandrel is automated and highly precise.

[0062] In some embodiments, see Figure 2 The movable clamping assembly 6 includes: a slider 61, a first adjusting cylinder 62, and a gripper 63. The slider 61 serves as the supporting base of the movable clamping assembly 6 and is fixedly connected to the lead screw nut on the lead screw 53. At the same time, it forms a sliding pair with the guide rail 52. This connection method ensures that the slider 61 can slide stably along the guide rail 52 under the drive of the lead screw 53.

[0063] The first adjusting cylinder 62 is fixedly mounted on the slider 61. Its function is to provide clamping power to the gripper 63, and to drive the gripper 63 to open and close by extending and retracting the output shaft. The installation position of the first adjusting cylinder 62 on the slider 61 must be precise to ensure that the axis of its output shaft is collinear with the axis of the space accommodating the cholangioscope composite tube, so that the gripper 63 can be accurately aligned with the support mandrel.

[0064] The gripper 63 is connected to the output shaft of the first adjusting cylinder 62 and faces the space that accommodates the cholangioscope composite tube.

[0065] It should be noted that in this embodiment, the linear motion of the moving clamping component 6 is achieved through the cooperation of the slider 61 with the lead screw 53 and guide rail 52 of the drive component 5; the power output of the first adjusting cylinder 62 drives the gripper 63 to complete the clamping and releasing of the support mandrel; the three work together to enable the moving clamping component 6 to move precisely along the preset axis direction. After stably clamping the support mandrel in the clamping position, the support mandrel is pulled out by the drive component 5, and then the support mandrel is released and reset, providing a reliable execution guarantee for the support mandrel extraction process. The slider 61 ensures precise movement, the first adjusting cylinder 62 provides clamping power, and the gripper 63 grasps the support mandrel, together replacing manual labor to complete the support mandrel extraction operation, improving processing efficiency and quality.

[0066] In some embodiments, see Figure 2 The output shaft of the first adjusting cylinder 62 is detachably connected to the gripper 63 via a quick-change connector to meet the need for quick replacement of grippers 63 of different specifications.

[0067] The first adjusting cylinder 62 and the gripper 63 are detachably connected, and quick assembly and separation of the two are achieved through quick-change connectors, so that the device can flexibly change the gripper 63 according to different specifications of support mandrels, thereby improving the overall production efficiency.

[0068] In some embodiments, see Figure 1 The mandrel collecting groove 8 is a dedicated component in the device used to collect the extracted support mandrel. Its core function is to receive the support mandrel that has detached from the movable clamping assembly 6. The mandrel collecting groove 8 is fixedly placed on the support frame 1, and its installation position must correspond to the lower part of the moving path of the movable clamping assembly 6. This ensures that when the movable clamping assembly 6 opens its gripper 63 to release the support mandrel, the support mandrel can fall directly into the groove under the action of gravity without the need for manual intervention to adjust the falling trajectory of the support mandrel.

[0069] The mandrel collection slot 8, through precise positioning design and reasonable structural optimization, requires no manual intervention, greatly reducing the physical burden on workers.

[0070] In some embodiments, see Figure 1 The controller 9 is the core of the entire device and is electrically connected to the lifting drive mechanism 3, the drive assembly 5, and the moving clamping assembly 6.

[0071] The controller 9 establishes an electrical connection with the lifting drive mechanism 3, the drive component 5, and the moving clamping component 6 to realize automated control and coordinated scheduling of each process of the device. This ensures precise connection of actions such as fixing the cholangioscope composite tube, clamping the support mandrel, pulling out, and releasing, replacing manual operation to achieve full-process automation and improving processing efficiency and quality stability.

[0072] In some embodiments, a buffer pad 10 is fixedly disposed on the top surface of the lower pressure block 2 of the device. The buffer pad 10 is made of an elastic medical-grade flexible material, including silicone or polyurethane. Such materials can undergo adaptive deformation when in contact with the choledochoscope composite tube, converting the pressure transmitted by the upper pressure block assembly into a uniformly distributed flexible force, while increasing the contact area with the choledochoscope composite tube.

[0073] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

Claims

1. A cholangioscope composite tube support mandrel extraction device, characterized by, include: Support frame (1); a lower pressure block (2) is fixedly installed on the support frame (1); A lifting drive mechanism (3) is provided, comprising: a servo electric cylinder (31) and a pressure sensor (32); the servo electric cylinder (31) is fixedly disposed below the support frame (1), and the power output end of the servo electric cylinder (31) passes through the support frame (1) and extends to the top of the support frame (1); the pressure sensor (32) is located above the support frame (1), and one end of the pressure sensor (32) is fixedly connected to the power output end of the servo electric cylinder (31); the other end of the pressure sensor (32) is connected to an upper pressure block assembly (4); the upper pressure block assembly (4) reciprocates along a direction perpendicular to the top surface of the lower pressure block (2); when the upper pressure block assembly (4) approaches the lower pressure block (2), a space for accommodating the cholangioscope composite tube is formed between the bottom surface of the upper pressure block assembly (4) and the top surface of the lower pressure block (2); Drive assembly (5); the drive assembly (5) is fixedly installed on the support frame (1); the movable clamping assembly (6) is slidably disposed on the drive assembly (5); the axis of the movable clamping assembly (6) is collinear with the axis of the space accommodating the choledochoscope composite tube; the movable clamping assembly (6) reciprocates along the axis of the space accommodating the choledochoscope composite tube; the movable clamping assembly (6) has a clamping part; when the movable clamping assembly (6) is in the clamping position, the clamping part of the movable clamping assembly (6) clamps the support mandrel.

2. The cholangioscope composite tube support stylet extraction device of claim 1, wherein, The upper pressure block assembly (4) includes an upper pressure block (41) and a buffer pad (42); the number of the upper pressure block (41) and the buffer pad (42) is 6 each; the six upper pressure blocks (41) are evenly distributed along the axis parallel to the space containing the choledochoscope composite tube; the bottom surface of each upper pressure block (41) is fixedly provided with the buffer pad (42).

3. The cholangioscope composite tube support stylet extraction device of claim 2, wherein, The lifting drive mechanism (3) further includes: cylinders (33); the number of cylinders (33) is six; the cylinder bodies of the six cylinders (33) are fixedly connected to the end of the pressure sensor (32) away from the servo electric cylinder (31) through the connecting plate (34); the output ends of the six cylinders (33) are respectively fixedly connected to the top of the six upper pressure blocks (41).

4. The cholangioscope composite tube support stylet extraction device of claim 3, wherein, It also includes guide rods (7); there are two guide rods (7); the two guide rods (7) are symmetrically and vertically fixed on the support frame (1) and are located on both sides of the space that accommodates the cholangioscope composite tube; both guide rods (7) pass through the corresponding guide holes on the connecting plate (34).

5. The cholangioscope composite tube support stylet extraction device of claim 1, wherein, The driving component (5) includes: A slide base (51) is fixedly mounted on the support frame (1); Guide rail (52), the guide rail (52) is fixedly mounted on the slide base (51); A lead screw (53) is mounted on the slide base (51) via a bearing seat, and the lead screw (53) is parallel to the guide rail (52). A drive motor (54) is fixedly mounted on one end of the slide base (51), and the output shaft of the drive motor (54) is coaxially connected to the lead screw (53).

6. The cholangioscope composite tube support stylet extraction device of claim 5, wherein, The movable clamping assembly (6) includes: a slider (61); the slider (61) is fixedly connected to the lead screw nut on the lead screw (53); the slider (61) and the guide rail (52) form a sliding pair; a first adjusting cylinder (62); the first adjusting cylinder (62) is fixedly installed on the slider (61); the output shaft of the first adjusting cylinder (62) is connected to the gripper (63); the gripper (63) faces the space that accommodates the cholangioscope composite tube.

7. The cholangioscope composite tube support stylet extraction device according to claim 6, wherein, The output shaft of the first regulating cylinder (62) is detachably connected to the gripper (63) via a quick-change connector.

8. The cholangioscope composite tube support stylet extraction device according to claim 1, wherein, The device further includes a mandrel collecting groove (8); the mandrel collecting groove (8) is fixedly placed on the support frame (1), and the mandrel collecting groove (8) is located below the moving path of the moving clamping assembly (6).

9. The cholangioscope composite tube support stylet extraction device according to claim 1, wherein, The device further includes a controller (9); the controller (9) is electrically connected to the lifting drive mechanism (3), the drive assembly (5) and the moving clamping assembly (6).

10. The cholangioscope composite tube support stylet extraction device according to claim 1, wherein, A buffer pad is fixedly provided on the top surface of the pressure block (2).

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