Visual epidural intervention device

Abstract

The visual epidural intervention device comprises a catheter, an end cover and a collecting assembly, the intervention end of the catheter is provided with a first limiting structure, the collecting assembly is arranged at the intervention end and abuts against the first limiting structure towards one side of the intervention end, and the collecting assembly comprises a camera module and a limiting piece capable of moving controllably; the limiting piece is connected with the camera module and can abut against the inner wall of the guide pipe, the collecting assembly is connected with the end cover through a plurality of first guide wires, the first guide wires extend to the outside of the guide pipe and are connected with the positioning piece, the positioning piece abuts against the end cover, and through the design, at least four first guide wires are matched with the positioning piece, so that the collecting assembly shifts towards different directions when being pulled; through excursion accurate control, the technology effectively solves the problem that in the prior art, the image collection range is limited, all-directional image collection can be achieved in multiple directions, and the applicability of the visual epidural intervention device in a complex operation environment is improved.

Description

Technical Field

[0001] The present invention relates to an interventional device, and in particular to a visual epidural interventional device. Background Art

[0002] Visual epidural interventional devices are widely used in clinical medicine, especially in the fields of anesthesia, neurosurgery, etc., for operating on the epidural space. The epidural space intervention operation requires extremely high precision and safety. Therefore, strict requirements are put forward for the design of interventional instruments. In recent years, with the development of imaging technology, visual epidural catheters have been gradually introduced to assist operators in accurately positioning the epidural space.

[0003] Currently, the existing visual epidural catheters on the market are generally based on traditional epidural catheters, with an image acquisition module (such as a camera module) added. These visual epidural catheters usually adopt a fixed image acquisition angle, and the lens can only acquire images within a certain range in front of the catheter. During use, the image acquisition module of the catheter is generally arranged inside the catheter, and the camera lens faces the intervention end of the catheter, and the acquisition range is mainly concentrated in front of this direction.

[0004] However, the existing visual epidural catheters still have some limitations in specific clinical applications. Especially in a complex operating environment, due to the limitations of the acquisition angle and range of the image acquisition module, it is difficult to take into account the images on the side of the catheter or other important angles, which affects the operator's comprehensive observation of the intervention area. Therefore, how to ensure that the operator can comprehensively obtain the image information of the target area and improve the success rate and safety of epidural puncture and catheterization is still an urgent problem to be solved. Summary of the Invention

[0005] The purpose of the present invention is to provide a visual epidural interventional device that can offset in different directions by introducing a multi-direction offset control mechanism, so that the acquisition component can offset in different directions, expand the coverage range of image acquisition, and overcome the defect that the existing catheter can only acquire images in a single direction.

[0006] The technical solution adopted by the present invention to solve the above problems is: a visual epidural interventional device, comprising:

[0007] A catheter, including an intervention end and an injection end, and a first limiting structure is arranged at the intervention end of the catheter.

[0008] An end cap, arranged at the injection end, and a plurality of first through holes are opened on the end cap.

[0009] An acquisition component, arranged at the intervention end, and one side of the acquisition component facing the intervention end abuts against the first limiting structure to limit the acquisition component from coming out of the intervention end. The acquisition component includes:

[0010] An imaging module is disposed within the catheter, and the lens of the imaging module is oriented towards the intervention end.

[0011] A limiting member is controllably movable. The limiting member is connected to the imaging module and is configured to abut against the inner wall of the catheter when the visual epidural intervention device is in an operating state.

[0012] A plurality of first guide wires, one end of each of the first guide wires is connected to a side of the acquisition component away from the intervention end, and the other end of each of the first guide wires extends to the outside of the catheter via a plurality of the first through holes in a one-to-one correspondence.

[0013] A plurality of positioning members are respectively connected to the ends of the first guide wires extending outside the catheter in a one-to-one correspondence, and each of the positioning members abuts against the end cap.

[0014] Wherein, when the acquisition component is subjected to a pulling force in a direction away from the acquisition component, the intervention end of the catheter deflects in a direction parallel to the radial direction of the intervention end, and when at least four of the first guide wires are pulled in a direction away from the acquisition component, the acquisition component will deflect in a first direction, a second direction, a third direction, and a fourth direction respectively, and the four deflection directions are all in the same plane, wherein the first direction and the third direction are opposite, the second direction and the fourth direction are opposite, and the first direction is perpendicular to the second direction.

[0015] Preferably, the acquisition component further includes:

[0016] An airbag is connected to the limiting member, and the airbag is controllably inflated and deflated to move the limiting member.

[0017] The limiting member is configured to abut against or separate from the inner wall of the catheter when the airbag expands or contracts.

[0018] Preferably, a groove is provided on the inner wall of the catheter near the intervention end for abutting against the limiting member when the airbag expands.

[0019] Preferably, the end cap is provided with a second through hole, and the acquisition component further includes:

[0020] A sleeve is disposed within the catheter, and a side facing the intervention end abuts against the first limiting structure to prevent the sleeve from disengaging from the catheter, and the sleeve is sleeved outside the imaging module.

[0021] An end plate is disposed on a side of the sleeve away from the intervention end, and a through hole is provided on one side of the end plate.

[0022] A first elastic member is disposed within the sleeve. The first elastic member is located between the imaging module and the end plate, and both ends of the first elastic member are respectively in contact with the end plate and the imaging module to apply a thrust force towards the intervention end to the imaging module.

[0023] A second guide wire is disposed within the catheter. One end of the second guide wire passes through the through hole and is connected to the imaging module. The other end of the second guide wire extends to the outside of the catheter via the second through hole, and a contact block is provided at the end of the second guide wire extending outside the catheter to be in contact with the end cap.

[0024] Preferably, a second limiting structure is provided on the inner wall of the sleeve near the intervention end.

[0025] A third limiting structure adapted to the second limiting structure is constructed on the outer side of the imaging module to be in contact with the second limiting structure after the imaging module extends out of the intervention end by a preset distance.

[0026] Preferably, the end cap further includes:

[0027] A plurality of fixed tubes are disposed on the side of the end cap facing away from the catheter, and each fixed tube is arranged in one-to-one correspondence with each through hole. The positioning member connected to one end of the first guide wire extending outside the catheter is inserted into the end of the fixed tube facing away from the end cap.

[0028] A plurality of second elastic members are disposed within the fixed tubes in a one-to-one correspondence manner, and both ends of the second elastic members are respectively in contact with the end cap and the positioning member.

[0029] Preferably, the acquisition assembly further includes:

[0030] A bottom tube is connected to the imaging module. An opening is provided on the circumferential side of the bottom tube. A guiding structure is provided on the inner wall of the bottom tube at the position aligned with the opening, and the extending direction of the guiding structure points to the opening.

[0031] The limiting member and the airbag are both disposed within the bottom tube. The limiting member is connected to the guiding structure, and the guiding structure is configured to move the limiting member in the extending direction of the guiding structure when the limiting member moves.

[0032] Preferably, a through groove is provided on one side of the end cap. A trachea communicating with the inside of the airbag is provided on the surface of the airbag, and one end of the trachea facing away from the airbag extends to the outside of the catheter via the through groove.

[0033] The visual epidural intervention device further includes:

[0034] The air pump operates controllably and is connected to one end of the trachea that extends outside the catheter to control the inflation and deflation of the airbag.

[0035] Preferably, the catheter includes an intervention section, a drainage section, and an injection section. The intervention end is one end of the intervention section. One end of the intervention section that faces away from the intervention end is connected to one end of the drainage section. One end of the drainage section is connected to one end of the injection section. One end of the injection section that faces away from the drainage section is the injection end. Among them, the outer diameter of the intervention section is 1.0 to 1.2 times the outer diameter of the drainage section.

[0036] Preferably, the intervention section, the drainage section, and the injection section are integrally formed, and the connection between the intervention end and the drainage section has a smooth transition.

[0037] Advantages of the embodiments in the present invention:

[0038] Due to the design of cooperating with the positioning member through at least four guide wires, the acquisition component can deflect in different directions when subjected to a pulling force in the direction away from the acquisition component. Therefore, it can effectively overcome the problem of limited image acquisition range in the prior art, and further achieve all-round image acquisition in multiple directions. This technical solution improves the applicability of the visualization epidural catheter in a complex operating environment, enhances the operator's comprehensive observation ability of the surgical area, and thus effectively improves the success rate and safety of the surgery. Description of the Drawings

[0039] Figure 1 is an exploded view of the visualization epidural intervention device in an embodiment of the present invention.

[0040] Figure 2 is a schematic structural diagram of the visualization epidural intervention device in an embodiment of the present invention.

[0041] Figure 3 is a schematic structural diagram of the acquisition component in an embodiment of the present invention.

[0042] Figure 4 is a partial cross-sectional view of the injection end of the catheter in an embodiment of the present invention.

[0043] Figure 5 is the present invention Figure 4 magnified view of part A.

[0044] Wherein: 100, visual epidural intervention device; 10, catheter; 110, intervention end; 20, acquisition component; 210, camera module; 220, limiting member; 230, sleeve; 240, end plate; 241, through hole; 250, first elastic member; 260, second guide wire; 30, end cap; 310, first through hole; 320, second through hole; 40, first guide wire; 50, positioning member; 60, fixed tube; 70, second elastic member; 80, airbag; 810, trachea. Detailed implementation manners

[0045] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0047] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

[0048] Please refer to Figures 1 to 2, in a preferred embodiment of the present application, the visual epidural intervention device 100 is proposed, which is used in the fields of anesthesia, neurosurgery, etc. to operate on the epidural space. The visual epidural intervention device 100 includes a catheter 10 and a collection component 20. The catheter 10 includes an intervention end 110 and an injection end. A first limiting structure is provided at the intervention end 110 of the catheter 10. The collection component 20 is arranged at the intervention end 110, and the side of the collection component 20 facing the intervention end 110 abuts against the first limiting structure to prevent the collection component 20 from disengaging from the intervention end 110. The collection component 20 includes a camera module 210 and a limiting member 220. The camera module 210 is arranged inside the catheter 10, and the lens of the camera module 210 faces the intervention end 110. The limiting member 220 moves controllably. The limiting member 220 is connected to the camera module 210 and is configured to abut against the inner wall of the catheter 10 when the visual epidural intervention device 100 is in the working state.

[0049] Specifically:

[0050] The catheter 10 is cylindrical with a hollow channel inside, facilitating the passage of the collection component 20 and the guide wire. The outer wall of the catheter 10 is usually made of biocompatible materials (such as medical silicone, polyurethane or nylon), and the inner wall is smooth to reduce friction.

[0051] The intervention end 110 is located at the front end of the catheter 10 and contacts the target area. The intervention end 110 is designed to be slightly curved or have a certain slope to facilitate smooth insertion and positioning in the epidural space. The first limiting structure is located at the inner wall of the first intervention end 110 of the catheter 10, which is embodied as an annular flange in a specific manner and abuts against the collection component 20 when the collection component 20 has a tendency to move towards the intervention end 110 to prevent the collection component 20 from disengaging from the catheter 10.

[0052] The injection end is the other end of the catheter 10, which is connected to an external device or control system. This end is designed as a standard interface and can be compatible with various medical devices.

[0053] The collection component 20 is usually in the shape of a micro-module, and its installation method is through the cooperation of the limiting member 220 with the inner wall of the catheter 10 to ensure stability during operation. The main function of the collection component 20 is to collect image data of the epidural space area so that the operator can monitor the target position in real time during the operation.

[0054] The imaging module 210 is installed inside the catheter 10, and its lens faces the intervention end 110. The imaging module 210 is generally composed of a high-resolution camera and a lens, and the field of view is generally from ° to °, capable of capturing images in front of and around the intervention end 110. The imaging module 210 is embodied as a micro camera such as Omn ivi s ion OVM in a specific manner. The imaging module 210 transmits image information to an external display device by wired or wireless means so that the operator can observe the situation in the area around the intervention end 110 inside the human body. Among them, the micro camera is a prior art and will not be elaborated here.

[0055] The limiting member 220 is connected to the imaging module 210 and is designed to be controllably movable to ensure that the imaging module 210 is in close contact with the inner wall of the catheter 10 during operation, so as to prevent the acquisition assembly 20 from moving relative to the catheter 10 when pulling the following first guide wire 40 to deflect the acquisition assembly 20. The limiting member 220 is usually made of flexible alloy or engineering plastic and has certain elasticity and wear resistance.

[0056] In the prior art, the visual epidural catheter 10 is generally based on the traditional epidural catheter 10 and an image acquisition module is added. These visual epidural catheters 10 usually adopt a fixed image acquisition angle, and the lens can only acquire images within a certain range in front of the catheter 10. During use, the image acquisition module of the catheter 10 is generally arranged inside the catheter 10, and the imaging lens faces the intervention end 110 of the catheter 10. The acquisition range is mainly concentrated in the front in this direction, which limits the operator's field of view, affects the operator's comprehensive observation of the intervention area, and increases the operation difficulty of medical staff.

[0057] Different from the prior art, in order to solve the problem of the limited field of view of the imaging module 210, such as Figures 3 to 5As shown, the visualized epidural intervention device 100 in this embodiment also includes an end cap 30, a plurality of first guide wires 40 and a plurality of positioning members 50. Among them, the end cap 30 is arranged at the injection end, and a plurality of first through holes 310 are opened on the end cap 30. One end of each first guide wire 40 is connected to the side of the collection component 20 away from the intervention end 110, and the other end of each first guide wire 40 extends to the outside of the catheter 10 through the plurality of first through holes 310 in a one-to-one correspondence manner. Each positioning member 50 is connected to one end of each first guide wire 40 extending to the outside of the catheter 10 in a one-to-one correspondence, and each positioning member 50 is abutted against the end cap 30. Among them, when the collection component 20 is subjected to a pulling force in the direction away from the collection component 20 by the first guide wire 40, the intervention end 110 of the catheter 10 is offset in a direction, and the offset direction is parallel to the radial direction of the intervention end 110, and when at least four first guide wires 40 are pulled in the direction away from the collection component 20, the collection component 20 will be offset in the first direction, the second direction, the third direction and the fourth direction respectively, and the four offset directions are all located in the same plane, wherein the first direction is opposite to the third direction, the second direction is opposite to the fourth direction, and the first direction is perpendicular to the second direction.

[0058] Specific:

[0059] The end cap 30 is located at the injection end of the catheter 10 and is usually made of medical grade plastic or metal material and has a sturdy structure. The end cap 30 is provided with a plurality of first through holes 310 for the passage of each first guide wire 40 and providing stable structural support. The main function of the end cap 30 is to close the injection end of the catheter 10, protect the internal structure, and provide a channel for the installation of the first guide wire 40 through the first through hole 310. The end cap 30 is also responsible for limiting the movement of the positioning member 50 in the direction close to the collection component 20 to ensure the accurate positioning of the first guide wire 40 and the collection component 20.

[0060] The first guide wire 40 is a slender and flexible metal wire made of a high-strength alloy, and has sufficient strength and flexibility for easy control by the operator. During operation, the deflection of the acquisition assembly 20 can be controlled by pulling the first guide wire 40. Among several first guide wires 40, four first guide wires 40 used to control the deflection of the acquisition assembly 20 in the first direction, the second direction, the third direction, and the fourth direction are distributed at the four corners of a square at the connection side of the acquisition assembly 20. That is, the four connection points are divided into two groups, and each group of connection points is symmetrically distributed with respect to the center of the connection side of the acquisition assembly 20. And when the lines connecting the two connection points in each group are made, the two lines are perpendicular to each other. At this time, by respectively pulling the first guide wires 40 corresponding to the first direction, the second direction, the third direction, and the fourth direction, the intervention end 110 of the catheter 10 can be driven by the acquisition assembly 20 to deflect in the corresponding direction. It can be understood that in order to enable the acquisition assembly 20 to deflect in more directions, two adjacent first guide wires 40 can be pulled to make the acquisition assembly 20 deflect at the intermediate angle between the corresponding directions of the two first guide wires 40, or the number of the first guide wires 40 is greater than four, and each first guide wire 40 is distributed in an annular array with the center of the connection side of the acquisition assembly 20 as the center, so as to expand the deflectable angle of the acquisition assembly 20.

[0061] The positioning member 50 is in close contact with the end cap 30, ensuring that the first guide wire 40 is always in an accurate predetermined position when being pulled, thus ensuring the stability of the acquisition assembly 20. And it also ensures that each first guide wire 40 is always in a tensioned state, so that the acquisition assembly 20 maintains its initial position without deflecting in any direction when not subjected to external forces.

[0062] The visual epidural intervention device 100 in this embodiment can be operated as follows:

[0063] The operator inserts the intervention end 110 of the catheter 10 into the target area, and the camera module 210 at the intervention end 110 of the catheter 10 starts to collect images in real time. The operator observes the images through the display device and adjusts the position of the catheter 10.

[0064] When it is necessary to adjust the viewing angle of the acquisition assembly 20 to observe in a specific direction, the operator can pull the positioning member 50 at the end of the first guide wire 40 corresponding to the specific direction, so that the corresponding first guide wire 40 in the catheter 10 is pulled out of the catheter 10, thereby making the acquisition assembly 20 drive the intervention end 110 of the catheter 10 to move in the specific direction. And as the pulled-out length of the first guide wire 40 is different, the deflection angle of the acquisition assembly 20 is also different. Specifically, the deflection angle of the acquisition assembly 20 follows the rule that the longer the pulled-out length of the corresponding first guide wire 40, the greater the deflection angle.

[0065] In the process of adjusting the deflection angle of the acquisition component 20, the operator can timely adjust the direction of the acquisition component 20 and the intervention end 110 of the catheter 10 according to the real-time feedback of the impact information from the external display device, thereby achieving precise operation.

[0066] In this embodiment, the design of controlling the deflection of the acquisition component 20 in a specific direction by pulling the first guide wire 40 in the corresponding direction is adopted, thereby ensuring that the operator can fully obtain image information of the epidural space area, thereby enhancing the visualization effect of the operation, effectively solving the problem of limited field of view of the camera module 210 in the prior art, and improving the operational flexibility of the acquisition component 20. In addition, this all-round and multi-angle image acquisition solution significantly improves the accuracy of the operation, can effectively reduce the risk of medical accidents, and improve the success rate of the operation.

[0067] In order to allow the intervention end 110 of the catheter 10 to deflect along with the collection assembly 20 under the action of the pulling force of the first wire drawing, in some embodiments, the catheter 10 includes an intervention section, a drainage section and an injection section, the intervention end 110 is one end of the intervention section, the end of the intervention section away from the intervention end 110 is connected to one end of the drainage section, one end of the drainage section is connected to one end of the injection section, and the end of the injection section away from the drainage section is the injection end. Among them, the outer diameter of the intervention section is 1.0 to 1.2 times the outer diameter of the outer drainage section. The intervention section, the drainage section and the injection section are integrally formed, and the connection between the intervention end 110 and the drainage section is smoothly transitioned.

[0068] Specifically, the outer diameter of the intervention section is larger than the outer diameter of the drainage section, which can provide better stability when subjected to force, especially when the catheter 10 is subjected to tension during operation, it can maintain a stable shape and avoid unnecessary bending or deformation. Specifically, the larger outer diameter of the intervention section can provide appropriate rigidity, so that the intervention end 110 can be accurately deflected in the required direction without causing directional deviation due to insufficient rigidity. And this difference in outer diameter ratio makes it easier for the catheter 10 to respond appropriately when facing tension, while also ensuring the smooth insertion and deflection of the catheter 10, especially when the first guide wire 40 applies tension, the intervention section can smoothly transition with the connection of the drainage section, avoiding abrupt angle changes or excessive operating resistance.

[0069] The smooth transition design between the intervention section and the drainage section avoids sharp transitions or protrusions, thereby reducing damage to surrounding tissues when the catheter 10 enters the human body or is operated. This transition also helps the catheter 10 maintain a smooth trajectory during operation, especially when the catheter 10 needs to make subtle adjustments or deflections, so that it can pass through the seam smoothly and steadily. The smooth transition allows the intervention section to easily deflect toward the drainage section when tension is applied without being hindered by structural protrusions or sharp angles. This transition design optimizes the flexibility of the catheter 10, allowing it to maintain high stability and reliability in actual applications.

[0070] In this embodiment, through the above design, the intervention section and the drainage section of the catheter 10 can work together better, ensuring that when subjected to tension, the intervention end 110 can be accurately and smoothly deflected, effectively improving the operability and safety of the visualized epidural intervention device 100.

[0071] In order to keep each first guide wire 40 in a continuously taut state before being pulled, in some embodiments, as Figures 4 to 5 As shown, the visualized epidural intervention device 100 includes a plurality of fixed tubes 60 and a plurality of second elastic members 70. The plurality of fixed tubes 60 are all arranged on the side of the end cap 30 away from the catheter 10, and each fixed tube 60 is arranged in alignment with each through hole, and the positioning member 50 connected to the end of the first guide wire 40 extending to the outside of the catheter 10 is inserted into the end of the fixed tube 60 away from the end cap 30. The plurality of second elastic members 70 are arranged in a one-to-one correspondence in the fixed tube 60, and the two ends of the second elastic member 70 are respectively abutted against the end cap 30 and the positioning member 50.

[0072] Specific:

[0073] The fixed tube 60 is in the shape of an elongated tube, and is usually made of biocompatible plastic or stainless steel. The length and inner and outer diameters are adapted according to the through hole diameter and operation requirements. The internal space of each fixed tube 60 is sufficient to accommodate the second elastic member 70 and cooperate with the first guide wire 40 and the positioning member 50. The main function of the fixed tube 60 is to provide an installation channel for the second elastic member 70 and to ensure the stability of the position of the first guide wire 40 and the positioning member 50. The fixed tubes 60 are evenly distributed on the side of the end cap 30 away from the catheter 10, and each fixed tube 60 is aligned one by one with the first through hole 310 on the end cap 30 to provide an accurate guide channel. The inner wall of the fixed tube 60 is constructed with a protruding flange structure along its own circumference to provide an abutment surface for one end of the second elastic member 70.

[0074] The second elastic member 70 is embodied in the connection mode that one end abuts against the flange structure protruding from the circumferential side of the inner wall of the fixed tube 60, and the other end abuts against the positioning member 50 corresponding to the end of the first guide wire 40. The second elastic member 70 is embodied as a cylindrical spring in a specific manner, which is annular or columnar, and the diameter is adapted to the inner diameter of the fixed tube 60. The length of the second elastic member 70 is slightly shorter than the length of the fixed tube 60 to ensure that it can be freely compressed and extended within the fixed tube 60. The main function of the second elastic member 70 is to provide elastic support force for the components (such as the first guide wire 40 and the positioning member 50) within the fixed tube 60. Its elastic characteristics enable the first guide wire 40 and the positioning member 50 to be stably maintained in a predetermined position when an external tensile force is applied, so that the first guide wire 40 is in a continuous tension state, and effectively reduces the influence caused by vibration or deviation during the operation. The connection of the second elastic member 70 with the end cover 30 and the positioning member 50 enhances the stability of the entire device.

[0075] In this embodiment, by introducing the fixed tube 60 and the second elastic member 70, the problems of vibration and loosening that may occur to the first guide wire 40 during the operation are solved. The elastic support force provided by the second elastic member 70 ensures the stability of the acquisition assembly 20, makes the angle adjustment of image acquisition more accurate, and thus enhances the applicability and reliability of the visualization epidural intervention device 100 in clinical operations. In addition, through the optimized design of the fixed tube 60 and the elastic member, the system can effectively avoid image acquisition deviation caused by operation vibration or interference during the operation, and significantly improves the safety and accuracy of the operation.

[0076] In order to further expand the field of view of the camera module 210, the camera module 210 can be extended from the intervention end 110 of the catheter 10 when needed. In some embodiments, such as Figure 5As shown, a second through hole 320 is provided on one side of the end cap 30, and the acquisition assembly 20 further includes a sleeve 230, an end plate 240, a first elastic member 250 and a second guide wire 260. The sleeve 230 is disposed in the catheter 10, and the side facing the intervention end 110 abuts against the first limiting structure to limit the sleeve 230 from coming out of the catheter 10, and the sleeve 230 is sleeved on the outside of the camera module 210. The end plate 240 is disposed on the side of the sleeve 230 away from the intervention end 110, and a through hole 241 is provided on one side of the end plate 240. The first elastic member 250 is disposed in the sleeve 230, the first elastic member 250 is located between the camera module 210 and the end plate 240, and the two ends of the first elastic member 250 abut against the end plate 240 and the camera module 210 respectively to apply a thrust toward the intervention end 110 to the camera module 210. The second guide wire 260 is disposed in the catheter 10, one end of the second guide wire 260 passes through the through hole 241 to be connected to the camera module 210, and the other end of the second guide wire 260 extends to the outside of the catheter 10 via the second through hole 320, and a stop block is provided at one end of the second guide wire 260 extending outside the catheter 10 to abut against the end cover 30.

[0077] Specific:

[0078] The sleeve 230 is usually made of biocompatible plastic or metal material, and its outer diameter matches the inner diameter of the catheter 10. The length of the sleeve 230 is adapted to the intervention end 110 of the catheter 10 to ensure smooth sliding inside the catheter 10. One end of the sleeve 230 contacts the first limiting structure to prevent it from falling out of the intervention end 110. The main function of the sleeve 230 is to provide a shell to protect the camera module 210 and ensure its smooth movement. The sleeve 230 also serves to constrain the position of the camera module 210 to prevent it from falling out or being misplaced. The sleeve 230 is installed inside the catheter 10, and the side facing the intervention end 110 contacts the first limiting structure of the catheter 10. Through this limiting structure, the sleeve 230 remains stable during use and will not fall out of the catheter 10.

[0079] The end plate 240 is usually a thin plate-like structure, and the material is the same or different from that of the sleeve 230, depending on the specific design requirements. The end plate 240 is located on the side of the sleeve 230 away from the intervention end 110, and a through hole 241 is opened on one side of the end plate 240. The main function of the end plate 240 is to provide support for the camera module 210 and allow the first elastic member 250 to abut against it to obtain reverse thrust. The through hole 241 allows the second guide wire 260 to pass through and transmit the pulling force to the camera module 210, so that the camera module 210 is simultaneously subjected to the thrust of the first elastic member 250 and the pulling force applied by the second guide wire 260, so that the camera module 210 is in a force balance state, and as the second guide wire 260 is stretched, the camera module 210 will also move accordingly, thereby realizing the extension and collection from the intervention end 110. The end plate 240 and the opposite end of the sleeve 230 are fixed by positioning and matching to ensure that the two do not loosen during operation. The through hole 241 on one side of the end plate 240 provides a passage for the second guide wire 260 .

[0080] The first elastic member 250 is specifically embodied as a cylindrical spring, which has a certain elasticity and resilience. Its length is adapted to the inner diameter of the sleeve 230, and its width matches the size of the camera module 210. The main function of the first elastic member 250 is to push the camera module 210 to the intervention end 110 of the catheter 10 by providing thrust. It cooperates with the second guide wire 260 to ensure that the camera module 210 always remains in the initial position in the sleeve 230 when not affected by external forces, and pushes the camera module 210 to extend outward when necessary. The first elastic member 250 is installed inside the sleeve 230 and is connected to the end plate 240 and the camera module 210 respectively. Through the action of the second elastic member 70, the camera module 210 can move forward along the catheter 10 under the action of external forces.

[0081] The second guide wire 260 is generally made of steel wire or other high-strength materials and has a strong tensile bearing capacity. One end thereof passes through the through hole 241 on the end plate 240 and is connected to the camera module 210, and the other end extends to the outside of the catheter 10 through the second through hole 320 on the end cover 30. The main function of the second guide wire 260 is to control the extension or retraction of the camera module 210. By applying or releasing tension, the second guide wire 260 can adjust the relative position of the camera module 210 in the catheter 10, thereby realizing the extension and retraction of the camera module 210. The second guide wire 260 passes through the through hole 241 of the end plate 240 and is connected to the camera module 210, and the other end extends to the outside of the catheter 10, and is provided with a block to abut against the end cover 30. By adjusting the tension of the second guide wire 260, the extension and retraction of the camera module 210 can be controlled.

[0082] During operation, the second guide wire 260 moves relative to the catheter 10 by an external force, which can cause the second elastic member 70 to adaptively expand and contract, thereby changing the relative position of the camera module 210. When the second guide wire 260 is pulled relative to the catheter 10, and the elastic thrust of the first elastic member 250 pushes the camera module 210 towards the insertion end 110 of the catheter 10, the camera module 210 can extend out of the catheter 10. At this time, the lens of the camera module 210 will face the target area to provide a wider field of view.

[0083] When it is necessary to retract the camera module 210, the pulling force applied to the second guide wire 260 will be applied to the second elastic member 70 through the camera module 210, causing it to retract into the catheter 10. The end plate 240 and the sleeve 230 together play a role in fixing and protecting.

[0084] The externally applied pulling force affects the extension and retraction of the camera module 210 through the second guide wire 260. The operator can precisely control the magnitude of the pulling force, enabling the camera module 210 to expand and contract along a predetermined trajectory within the catheter 10, so that the camera module 210 can adapt to different operation requirements in different working states.

[0085] In this embodiment, by introducing the cooperation of the sleeve 230, the elastic member and the second guide wire 260 in the visual epidural intervention device 100, the problem of limited field of view of the camera module 210 is solved, enabling it to extend when needed, thereby providing a wider field of view. By precisely controlling the pulling force of the second guide wire 260, the camera module 210 can flexibly expand and contract according to operation requirements, improving the visibility and accuracy of the operation, especially in complex operations that require a full range of observation of the target area. This technical solution greatly enhances the adaptability and flexibility of the visual epidural intervention device 100 in practical applications, improving the safety and success rate of the operation.

[0086] Furthermore, in order to prevent the camera module 210 from disengaging from the sleeve 230, in some embodiments, a second limiting structure is provided on the inner wall of the sleeve 230 near the insertion end 110. A third limiting structure adapted to the second limiting structure is constructed on the outer side of the camera module 210 to abut against the second limiting structure after the camera module 210 extends out of the insertion end 110 by a preset distance.

[0087] Specifically:

[0088] The second limiting structure is an annular or raised structure constructed on the inner wall of the sleeve 230. Its design size and shape match the third limiting structure on the outside of the camera module 210. It is usually made of elastic or hard materials to ensure that after the camera module 210 is extended a certain distance, it can form effective physical contact with the third limiting structure. The main function of the second limiting structure is to serve as an extension limiter for the camera module 210 to prevent the camera module 210 from being excessively extended during use, ensuring that it always stays within the predetermined working range. At the same time, the cooperation between the second limiting structure and the third limiting structure can effectively prevent the camera module 210 from accidentally falling out of the sleeve 230. The second limiting structure is combined with the inner wall of the sleeve 230 through precision machining or mold forming to form an integrated structure. Its installation position is close to the intervention end 110 of the sleeve 230 to ensure that it plays a limiting role when the camera module 210 needs to be extended a certain distance.

[0089] The third limiting structure is usually an external annular structure, which is arranged on the outside of the camera module 210, and its size and shape are adapted to the second limiting structure. This structure can form an effective mechanical stop by close contact with the second limiting structure to prevent the camera module 210 from continuing to extend outward. The main function of the third limiting structure is to connect with the second limiting structure and form a physical limit after the camera module 210 extends a preset distance, so as to ensure that the camera module 210 is not easy to fall off in the catheter 10, thereby increasing the stability and safety of the device. The third limiting structure is fixed to the camera module 210 by being integrally formed with the outer surface of the camera module 210 or by bonding, embedding, etc., to ensure that it can stably contact with the second limiting structure during the entire operation process.

[0090] When the operator increases the compression distance of the second elastic member 70 through the second guide wire 260, the camera module 210 will extend along the axial direction of the sleeve 230. At this time, the extension distance of the camera module 210 is limited by the cooperation of the second limiting structure and the third limiting structure. The third limiting structure contacts the second limiting structure to form a physical restriction, so that the camera module 210 can only move within a preset range. The above design can prevent the camera module 210 from being excessively extended or dislodged during operation, thereby increasing the safety and controllability of the operation.

[0091] When the second limiting structure and the third limiting structure are in contact, they can provide sufficient mechanical force to ensure that the camera module 210 is stable and does not fall off during the extension process. Even during operation, under the action of external pulling force, the camera module 210 can remain in the specified working position to avoid operation failure or device damage caused by uncontrolled extension.

[0092] In this embodiment, by providing a second limiting structure on the inner wall of the sleeve 230 and cooperating with the third limiting structure and the camera module 210, this embodiment effectively solves the risk that the camera module 210 may come out of the sleeve 230, ensures that the extension distance can be precisely controlled during the extension process, and avoids unnecessary damage or operation difficulties. Moreover, the second limiting structure and the third limiting structure not only enhance the stability and reliability of the visual epidural intervention device 100, but also improve the safety of the device during the operation. Especially in complex and high-risk operation environments, it can provide greater guarantee for medical operations. In addition, this improvement improves the controllability of the device, and the operator can more precisely adjust the extension and retraction of the camera module 210, greatly improving the surgical accuracy and success rate.

[0093] To further illustrate the structural design, installation and operation of the limiting member 220, the acquisition assembly 20 further includes a bottom tube, which is connected to the camera module 210. That is, one end of the bottom tube is connected to one end of the sleeve 230, and the end of the bottom tube connected to the sleeve 230 is closed by an end plate 240. An opening is provided on the circumferential side of the bottom tube, and a guiding structure is provided at the position where the inner wall of the bottom tube is aligned with the opening, and the extending direction of the guiding structure points to the opening. The guiding structure is configured to make the limiting member 220 move in the extending direction of the guiding structure when the limiting member 220 moves. The limiting member 220 is installed in the bottom tube, and an airbag 80 is also installed in the bottom tube, and the airbag 80 is connected to the limiting member 220. The airbag 80 is controlled to expand and contract so as to move the limiting member 220. Moreover, the limiting member 220 is configured to abut against or separate from the inner wall of the catheter 10 when the airbag 80 expands or contracts. The limiting member 220 is connected to the guiding structure.

[0094] The bottom tube is a long tubular structure, and the material can be selected from high-strength synthetic materials. One end of the bottom tube is connected to the sleeve 230, and the end plate 240 is installed at the connection between the two, that is, between the two. The main function of the bottom tube is to provide support for the guiding structure, so as to provide a prerequisite for the limiting member 220 to move in a directional manner.

[0095] A plurality of openings are provided on the circumferential side of the bottom tube, and the guiding structure is butt-jointed with the inner wall of the bottom tube through precise design. The guiding structure has a specific directionality, so that the limiting member 220 can move along a predetermined path. The function of the guiding structure is to guide the moving direction of the limiting member 220 in the bottom tube, ensure that the limiting member 220 does not deviate from the track, and avoid unnecessary jamming or unstable operation. The cooperation between the opening and the guiding structure ensures the directional movement of the limiting member 220. The guiding structure is embedded in the inner wall of the bottom tube, and the openings correspond to the guiding structure one by one, ensuring that each limiting member 220 can move smoothly along the specified direction when the air flow or the airbag 80 acts.

[0096] The limiting member 220 is a precision mechanical component, usually made of elastic material, and its outer shape is designed to fit the inner wall of the catheter 10. When the limiting member 220 moves within the bottom tube, it can generate necessary displacements according to the expansion or contraction of the airbag 80. The main function of the limiting member 220 is to adjust the position of the acquisition assembly 20 by contacting or separating from the inner wall of the catheter 10, ensuring that the imaging module 210 performs image acquisition at an appropriate position. The movement of the limiting member 220 is controlled by the airbag 80. The expansion and contraction of the airbag 80 can precisely adjust the position of the limiting member 220, ensuring that the imaging module 210 is always within the expected working range. The limiting member 220 is installed inside the bottom tube and is connected to the bottom tube through the airbag 80. The limiting member 220 can move freely within the bottom tube but is guided by the guiding structure to ensure that it runs along a predetermined path.

[0097] The airbag 80 is an expandable device made of flexible material, with sealed inner and outer walls, and can adjust its volume by inflating or exhausting gas. The surface of the airbag 80 is connected to the limiting member 220. The main function of the airbag 80 is to control the movement of the limiting member 220. When the airbag 80 expands, it pushes the limiting member 220 towards the inner wall of the catheter 10 to contact the inner wall of the catheter 10. When the airbag 80 contracts, the limiting member 220 will separate from the inner wall of the catheter 10, enabling the acquisition assembly 20 to move freely as needed. The expansion and contraction of the airbag 80 control the positioning of the limiting member 220, ensuring that it appropriately contacts or separates from the inner wall of the catheter 10 during operation, and further adjusting the position of the acquisition assembly 20.

[0098] In this embodiment, by adding a guiding structure and the design of the airbag 80 inside the bottom tube, the precise control of the limiting member 220 and the position adjustment of the acquisition assembly 20 are further enhanced. This design effectively solves the problem of how to quickly switch the connection state between the acquisition assembly 20 and the catheter 10, and provides higher operation stability and flexibility. The expansion and contraction of the airbag 80 control the movement of the limiting member 220, enabling the acquisition assembly 20 to adapt to changes under different operating conditions, ensuring that the visual epidural intervention device 100 can provide high-precision image acquisition in various complex surgical environments, thereby improving the success rate and safety of the surgery.

[0099] Furthermore, in order to ensure the stable abutment between the limiting member 220 and the inner wall of the catheter 10, in some embodiments, a groove is provided on the inner wall of the catheter 10 near the intervention end 110 to abut against the limiting member 220 when the airbag 80 expands.

[0100] The design of the groove provided on the inner wall of the catheter 10 provides additional support to ensure that the limiting member 220 can stably abut against the inner wall of the catheter 10. Specifically, when the airbag 80 expands, the limiting member 220 will be guided to cooperate with the groove, thereby enhancing the stability between the limiting member 220 and the inner wall of the catheter 10 and preventing the limiting member 220 from moving or shifting unstably during the expansion or contraction process.

[0101] It should be noted that the groove needs to be used in conjunction with the aforementioned first limiting structure. Because only when one end of the sleeve 230 abuts against the first limiting structure, the opening on the circumferential side of the bottom tube can be aligned with the groove. At this time, after the airbag 80 expands, one end of the limiting member 220 can be accurately inserted into the groove.

[0102] Through the guiding action of the groove in this embodiment, the limiting member 220 can be more accurately docked with the inner wall of the catheter 10, avoiding deviation or instability during the operation.

[0103] In order to control the expansion and contraction of the airbag 80, in some embodiments, as Figure 2 and 5 shown, a through groove is provided on one side of the end cap 30. A trachea 810 is provided on the surface of the airbag 80 and is communicated with the inside of the airbag 80. The end of the trachea 810 facing away from the airbag 80 extends to the outside of the catheter 10 through the through groove. The visual epidural intervention device 100 further includes an air pump (not shown in the figure), which operates in a controlled manner. The air pump is connected to the end of the trachea 810 extending to the outside of the catheter 10 to control the expansion and contraction of the airbag 80.

[0104] Specifically:

[0105] The through groove provided on one side of the end cap 30 provides an effective channel for the trachea 810, so that the trachea 810 can be connected to the outside of the catheter 10. The end of the trachea 810 extending to the outside of the catheter 10 through the through groove ensures that the gas flow inside the airbag 80 can be effectively controlled.

[0106] The surface of the airbag 80 is provided with a trachea 810 that is communicated with its inside. This design enables the trachea 810 to control the expansion and contraction of the airbag 80. This connection method of the trachea 810 can ensure that gas can uniformly enter the airbag 80 when the airbag 80 expands, and can also discharge gas when needed to make the airbag 80 contract.

[0107] The air pump is connected to the trachea 810 and can operate in a controlled manner. By adjusting the working state of the air pump, the expansion and contraction of the airbag 80 can be accurately controlled. The control method of the air pump may be automatic or manual, and is adjusted according to the requirements of the use scenario to ensure that the airbag 80 works at the precise timing and with the precise amplitude.

[0108] When the air pump starts and delivers gas to the airbag 80 through the air tube 810, the airbag 80 will expand. This causes the limiting member 220 to be pushed and abut against the inner wall of the catheter 10, thereby guiding the moving direction of the limiting member 220. When the air pump stops working or releases gas through control, the airbag 80 will contract, allowing the limiting member 220 to return to its original position or be adjusted to a new position.

[0109] In this embodiment, the combination of the air pump and the air tube 810 system enables precise control of the expansion and contraction of the airbag 80, thereby stabilizing the movement of the limiting member 220. Moreover, by controlling the operating state of the air pump, the state of the airbag 80 can be adjusted as needed, so as to achieve precise control of the acquisition component 20 and the limiting member 220, meeting the operation requirements in different clinical environments. Thus, an accurately controllable airbag 80 system is provided to optimize the stability and response speed of the visualization epidural intervention device 100 during operation.

[0110] What is described above in this specification is only an illustrative example of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the specific embodiments described or use similar ways to substitute, as long as they do not deviate from the content of this specification of the present invention or exceed the scope defined by this claims, they should all fall within the protection scope of the present invention.

Claims

1. A visualized epidural intervention device, characterized in that: include: A catheter, comprising an intervention end and an injection end, wherein the intervention end of the catheter is provided with a first limiting structure; An end cover is arranged at the injection end, and a plurality of first through holes are opened on the end cover; A collection component is arranged at the intervention end, and a side of the collection component facing the intervention end abuts against the first limiting structure to limit the collection component from coming out of the intervention end, and the collection component includes: A camera module is disposed in the catheter, and a lens of the camera module is disposed toward the intervention end; A stopper moves in a controlled manner, the stopper is connected to the camera module, and the stopper is configured to abut against the inner wall of the catheter when the visualized epidural intervention device is in a working state; A plurality of first guide wires, one end of each of the first guide wires is connected to a side of the collection component away from the intervention end, and the other end of each of the first guide wires extends to the outside of the catheter through a plurality of the first through holes in a one-to-one correspondence manner; A plurality of positioning members, each of which is connected to one end of each of the first guide wires extending outside the catheter in a one-to-one correspondence, and each of the positioning members is in contact with the end cap; When the first guide wire of the collection component is subjected to a pulling force in a direction away from the collection component, the intervention end of the catheter is offset in a direction parallel to the radial direction of the intervention end, and when at least four of the first guide wires are pulled in a direction away from the collection component, the collection component will be offset in the first direction, the second direction, the third direction and the fourth direction respectively, and the four offset directions are all located in the same plane, wherein the first direction is opposite to the third direction, the second direction is opposite to the fourth direction, and the first direction is perpendicular to the second direction.

2. A visualized epidural intervention device according to claim 1, characterized in that: The acquisition component also includes: An airbag connected to the limiting member, the airbag expands and contracts in a controlled manner to move the limiting member; The stopper is configured to abut against or separate from the inner wall of the catheter when the airbag is expanded or contracted.

3. A visualized epidural intervention device according to claim 2, characterized in that: An embedding groove is provided on the inner wall of the catheter near the intervention end so as to abut against the limiting member when the airbag is expanded.

4. The visualized epidural intervention device according to claim 1, characterized in that: The end cover is provided with a second through hole, and the collection assembly further comprises: a sleeve, disposed in the catheter, and abutting against the first limiting structure on a side facing the intervention end to limit the sleeve from coming out of the catheter, the sleeve being sleeved on the outside of the camera module; An end plate is arranged on a side of the sleeve away from the intervention end, and a through hole is opened on one side of the end plate; A first elastic member is disposed in the sleeve, the first elastic member is located between the camera module and the end plate, and two ends of the first elastic member are respectively in contact with the end plate and the camera module to apply a thrust to the camera module toward the intervention end; A second guide wire is arranged in the catheter, one end of the second guide wire passes through the through hole and is connected to the camera module, the other end of the second guide wire extends to the outside of the catheter through the second through hole, and a stop block is provided at one end of the second guide wire extending outside the catheter to abut against the end cover.

5. The visualized epidural intervention device according to claim 4, characterized in that: A second limiting structure is provided on the inner wall of the sleeve near the intervention end; A third limiting structure adapted to the second limiting structure is constructed on the outer side of the camera module so as to abut against the second limiting structure after the camera module extends a preset distance from the intervention end.

6. The visualized epidural intervention device according to claim 1, characterized in that: The end cap also includes: A plurality of fixing tubes are arranged on a side of the end cap away from the catheter, and each fixing tube is aligned with each through hole, and the positioning piece connected to one end of the first guide wire extending outside the catheter is inserted into the end of the fixing tube away from the end cap; A plurality of second elastic members are arranged in the fixing tube in a one-to-one correspondence, and two ends of the second elastic members are respectively in contact with the end cover and the positioning member.

7. A visualized epidural intervention device according to claim 2 or 3, characterized in that: The acquisition component also includes: A bottom tube connected to the camera module, an opening is provided on the circumference of the bottom tube, a guide structure is provided at a position where the inner wall of the bottom tube is aligned with the opening, and an extension direction of the guide structure points to the opening; The limiting member and the airbag are both arranged in the bottom tube, the limiting member is connected to the guide structure, and the guide structure is configured to move the limiting member toward the extension direction of the guide structure when the limiting member moves.

8. A visualized epidural intervention device according to claim 2 or 3, characterized in that: A through groove is provided on one side of the end cover, and an air tube connected to the inside of the air tube is provided on the surface of the air bag, and an end of the air tube away from the air bag extends to the outside of the catheter through the through groove; The visualized epidural intervention device further comprises: An air pump operates in a controlled manner and is connected to one end of the trachea extending to the outside of the catheter to control the expansion and contraction of the air bag.

9. The visualized epidural intervention device according to claim 1, characterized in that: The catheter includes an intervention section, a drainage section and an injection section, the intervention end is one end of the intervention section, the end of the intervention section away from the intervention end is connected to one end of the drainage section, one end of the drainage section is connected to one end of the injection section, and the end of the injection section away from the drainage section is the injection end; wherein the outer diameter of the intervention section is 1.0 to 1.2 times the outer diameter of the drainage section.

10. The visualized epidural intervention device according to claim 9, characterized in that: The intervention section, the drainage section and the injection section are integrally formed, and the connection between the intervention end and the drainage section has a smooth transition.

Images