Controllable bend optical fiber structure preparation method, preparation device and controllable bend optical fiber structure

Abstract

The present disclosure provides a controllable bend optical fiber structure preparation method, preparation device and controllable bend optical fiber structure. The controllable bend optical fiber structure preparation method includes drawing an optical fiber, making a first sensor harness, a traction wire and a laser optical fiber move together, and adding a first sleeve, a lens assembly and a second sleeve during the movement to form a new controllable bend optical fiber structure to meet the needs of existing ureteral stone crushing. In addition, each step is performed continuously during the preparation process of the controllable bend optical fiber structure, which greatly reduces the production time and improves the production efficiency.

Description

Technical Field

[0001] The present disclosure relates to medical devices, and in particular to a method and device for preparing a controllable bend optical fiber structure, and a controllable bend optical fiber structure. Background Art

[0002] Ureteroscopic lithotripsy is a minimally invasive, safe and effective treatment for upper urinary tract stones through the natural urinary cavity of the human body. It has become the preferred treatment for kidney stones with a diameter of less than 2 cm. At the same time, it has become a powerful tool and the "gold standard" for ureteroscopic lithotripsy when combined with a laser energy platform. From the perspective of design and application characteristics: rigid ureteroscopes are suitable for treating stones in the middle and lower ureters; flexible ureteroscopes are more suitable for treating stones in the upper ureters and kidneys.

[0003] In ureteral laser lithotripsy, the smallest size that a flexible ureteroscope can currently achieve is 9.6Fr. Therefore, there are cases where the operation fails because the flexible ureteroscope cannot pass through the three narrow sections of the ureter to reach the stone site. The existing traditional technology uses a guide wire, auxiliary catheter or dilator to assist in passing the narrow section.

[0004] However, the above three methods each have their disadvantages: the outer diameter of the guide wire is too different from that of the visual catheter or ureteroscope, resulting in a low actual surgical success rate; the end face hardness of the auxiliary catheter is relatively large, which can easily cause ureteral collateral damage; independent dilators are expensive and complicated to operate, and the dilation device passing through the inner cavity of the visual catheter or ureteroscope may further increase its overall diameter. Summary of the invention

[0005] In order to solve at least one of the above-mentioned defects, the present disclosure provides a method and a device for preparing a controllable bending optical fiber structure, so as to prepare a controllable bending optical fiber to extend into the ureter.

[0006] In a first aspect, the present disclosure provides a method for preparing a controllable bending optical fiber structure, comprising:

[0007] Drawing a laser optical fiber and pulling the laser optical fiber to move;

[0008] Moving the first sensor harness and the traction wire so that the first sensor harness, the traction wire and the laser optical fiber move together;

[0009] When the first sensor harness, the traction wire and the laser optical fiber move together, a first sleeve is sleeved outside the first sensor harness, the traction wire and the laser optical fiber to form an inner layer;

[0010] Disposing a lens assembly in front of the first sleeve during the movement of the inner layer portion, wherein the lens assembly is connected to the first sensor harness;

[0011] When the inner layer part moves together with the lens assembly, the second sleeve is sleeved outside the inner layer part;

[0012] monitoring the positions of the first sensor harness, the traction wire, and the laser optical fiber to control the positions of the first sensor harness, the traction wire, and the laser optical fiber to be arranged in a preset position during the process of moving together,

[0013] The first sensor harness, the traction wire and the laser optical fiber keep moving all the time, and the laser optical fiber is pulled all the time during the movement of the laser optical fiber.

[0014] Optionally, the method includes: moving the second sensor harness so that the first sensor harness, the second sensor harness, the traction wire and the laser optical fiber move together;

[0015] During the process that the first sensor harness, the second sensor harness, the traction wire and the laser optical fiber move together, a first sleeve is sleeved outside the first sensor harness, the second sensor harness, the traction wire and the laser optical fiber to form an inner layer;

[0016] During the movement of the inner layer part, a temperature and pressure sensor is arranged in front of the first sleeve, and the temperature and pressure sensor is connected to the second sensor harness.

[0017] Optionally, the front end of the laser optical fiber extends out of the first sleeve and is located in front of the first sleeve.

[0018] Optionally, extrusion is performed during the process that the first sensor harness, the traction wire and the laser optical fiber move together so that the first sleeve produced by the extrusion is sleeved outside the first sensor harness, the traction wire and the laser optical fiber;

[0019] The extrusion speed is adjusted according to the moving speeds of the first sensor harness, the traction wire and the laser optical fiber to ensure that the extrusion speed of the plastic is consistent with the moving speeds of the first sensor harness, the traction wire and the laser optical fiber.

[0020] Optionally, the first sensor harness, the traction wire and the laser optical fiber are bonded together during the process of the first sensor harness, the traction wire and the laser optical fiber moving together, and the first sleeve is sleeved over the first sensor harness, the traction wire and the laser optical fiber.

[0021] Optionally, before the first sleeve is sleeved on the first sensor harness, the traction wire and the laser optical fiber, the positions of the first sensor harness, the traction wire and the laser optical fiber are monitored;

[0022] After the first sleeve is sleeved on the first sensor harness, the traction wire and the laser optical fiber, the positions of the first sensor harness, the traction wire and the laser optical fiber are monitored.

[0023] Optionally, in the process that the first sensor harness, the traction wire and the laser optical fiber move together, the infusion tube moves together with the first sensor harness, the traction wire and the laser optical fiber;

[0024] The first sleeve is sleeved on the first sensor harness, the traction wire, the laser optical fiber and the infusion tube to form an inner layer.

[0025] Optionally, the first sensor harness, the traction wire and the laser optical fiber are moved by a clamping conveyor belt, and the positions of the first sensor harness, the traction wire and the laser optical fiber are monitored by a monitoring device.

[0026] In a second aspect, the present disclosure provides a device for preparing a controllable bending optical fiber structure, comprising:

[0027] Fiber drawing machine to draw laser optical fiber;

[0028] A moving device, the moving device drives the laser optical fiber, the first sensor harness and the traction wire to move respectively;

[0029] A first sleeve device, used for sleeve-mounting a first sleeve outside the first sensor harness, the traction wire and the laser optical fiber;

[0030] A robotic arm and a glue dispenser to install the lens assembly in front of the first sleeve;

[0031] A second sleeve device, used for arranging a second sleeve outside the first sleeve;

[0032] A monitoring device, used to monitor the moving speed of the laser optical fiber, the first sensor harness and the traction wire;

[0033] The control component is respectively connected to the optical fiber drawing machine, the moving device, the first extruder, the mechanical arm, the dispensing machine, the second extruder and the monitoring device by signals.

[0034] In a third aspect, the present disclosure provides a controllable bend optical fiber structure, which is prepared by the controllable bend optical fiber structure preparation method in any embodiment of the first aspect, or prepared by the controllable bend optical fiber structure preparation device in any embodiment of the second aspect.

[0035] In addition, the controllable bending optical fiber structure preparation method disclosed in the present invention can prepare a controllable bending optical fiber structure that can excite laser and bend at the front end, so that doctors can use the controllable bending structure to enter the patient's body to crush stones. In addition, each step of the preparation process is carried out continuously, which greatly reduces production time and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A block diagram of the method for preparing a controllable bending optical fiber structure disclosed in the present invention.

[0037] Figure 2 The block diagram is a partial step of the method for preparing the controllable bending optical fiber structure disclosed in the present invention.

[0038] Figure 3 It is a schematic structural diagram of the controllable bending optical fiber structure disclosed in the present invention.

[0039] Figure 4 for Figure 3 Enlarged view of part A in .

[0040] Figure 5 for Figure 3 A schematic diagram of the structure of the controllable bending optical fiber structure with part of the first sleeve and the second sleeve omitted.

[0041] Figure 6 for Figure 5 Enlarged view of part B in .

[0042] Figure 7 It is an internal cross-sectional view of the controllable bending optical fiber structure disclosed in the present invention.

[0043] Figure 8 It is a schematic diagram of the structure of the controllable bending optical fiber structure disclosed in the present invention.

[0044] Fig. 9 It is a schematic diagram of the structure of the handle disclosed in the present invention.

[0045] Fig.10 This is a connection diagram of the components of the device for preparing the controllable bending optical fiber structure disclosed in the present invention.

[0046] Fig.11 It is a schematic diagram of the structure of the outer sheath tube disclosed in the present invention.

[0047] Fig.12 It is a schematic diagram of the structure of the spiral tube disclosed in the present invention.

[0048] Markings in the figure: 110, laser optical fiber; 120, first sensor harness; 131, first traction wire; 132, second traction wire; 133, third traction wire; 134, fourth traction wire; 140, first sleeve; 141, spiral tube; 150, lens assembly; 151, lens; 152, temperature and pressure sensor; 153, mounting piece; 1531, front end face of mounting piece; 1532, side face of mounting piece; 160, second sleeve; 170, second sensor harness; 180, infusion tube; 190, lighting optical fiber; 191, protective cover; 200, handle; 210, housing; 211, entry 212, harness outlet; 220, bending assembly; 230, first swing arm knob; 240, second swing arm knob; 250, knob box; 260, first rotating member; 310, optical fiber drawing machine; 320, conveyor belt; 330, robotic arm; 340, glue dispenser; 350, first extruder; 360, second extruder; 370, monitoring device; 380, control assembly; 400, outer sheath; 410, outer sheath channel; 420, first opening; 430, second opening; 440, third opening; M, first direction. DETAILED DESCRIPTION

[0049] It should be understood that the exemplary embodiments described herein should be considered only for descriptive purposes and not for limiting purposes. Descriptions of features or aspects in each exemplary embodiment should generally be considered applicable to similar features or aspects in other exemplary embodiments.

[0050] The methods of preparing laser optical fibers with additional structures in the prior art are all segmented, and each step is independent of each other. For example, in some schemes, the entire optical fiber is first drawn out, and then the entire optical fiber is placed in an extrusion device for extrusion to provide a layer of polytetrafluoroethylene on the outer shell of the optical fiber to protect the optical fiber. In this case, the production time will be greatly increased, which is not conducive to the preparation of laser optical fiber structures with relatively complex internal structures. In particular, the controllable bend optical fiber structure prepared in part by the present invention is mainly used for crushing stones, which requires more structures. If all of them are prepared in segments, the production time will be greatly increased.

[0051] The present invention provides a method for preparing a controllable bending optical fiber structure. Figure 1 As shown, including:

[0052] Step S100, drawing the laser optical fiber and pulling the laser optical fiber to move;

[0053] Step S200, moving the first sensor harness and the traction wire, so that the first sensor harness, the traction wire and the laser optical fiber move together;

[0054] Step S300: When the first sensor harness, the traction wire and the laser optical fiber move together, a first sleeve is sleeved outside the first sensor harness, the traction wire and the laser optical fiber to form an inner layer.

[0055] Step S400: during the movement of the inner layer portion, a lens assembly is arranged in front of the first sleeve, wherein the lens assembly is connected to the first sensor harness.

[0056] Step S500: When the inner layer part and the lens assembly move together, the second sleeve is placed outside the inner layer part and the lens assembly.

[0057] Step S600: monitoring the positions of the first sensor harness, the traction wire and the laser optical fiber to control the positions of the harness, the traction wire and the laser optical fiber to be arranged according to a preset position during the process of moving together.

[0058] First, the inner layer includes a first sleeve 140, a first sensor harness 120, a traction wire and a laser optical fiber 110, and the material of the first sleeve 140 is a polymer material with a small friction coefficient, such as commonly used polytetrafluoroethylene. The first sensor harness 120 is used to connect to the sensor to transmit signals to the sensor. The traction wire is used to guide the bending of the controllable bend optical fiber structure. Specifically, the controllable bend optical fiber structure includes at least two traction wires, and the two traction wires are respectively located on both sides. By pulling the traction wire on one side and loosening the traction wire on the other side, the purpose of bending the controllable bend optical fiber structure can be achieved. The laser optical fiber 110 is used to connect to a laser emitting device to emit laser.

[0059] The above solution forms a first sleeve 140 on the outside of the first sensor harness 120, the traction wire and the laser fiber 110 by extrusion to protect the first sensor harness 120, the traction wire and the laser fiber 110, and prevent the first sensor harness 120, the traction wire and the laser fiber 110 from being damaged. For details, see Figure 7 .

[0060] In addition, during the manufacturing process, the laser optical fiber 110 is drawn by an optical fiber machine, and the laser optical fiber 110 is clamped and conveyed by at least two conveyor belts. At the same time, the traction wire and the first sensor harness 120 are clamped and conveyed by other conveyor belts, and the movement speed of the laser optical fiber 110 is ensured to be consistent with the movement speed of the traction wire and the first sensor harness 120, and the traction wire, the first sensor harness 120 and the laser optical fiber 110 remain parallel to each other during the movement. It should be noted that the position of the laser optical fiber 110 may be different from that of the traction wire and the first sensor harness 120. For example, the front end of the laser optical fiber 110 is located approximately 10 cm in front of the traction wire and the first sensor harness 120.

[0061] It should be noted that the soft ureteroscope prepared by the above scheme is different from the existing soft ureteroscope. It only needs to be provided with a flexible tubular structure and a sensor harness inside, and no additional instrument channel is required, so that the size of the entire controllable bend optical fiber structure is small, and the outer diameter can reach 2-3.2mm. And because the outer diameter is small and the internal structure is mostly flexible, the relatively accurate bending of the controllable bend optical fiber structure can be achieved by the traction wire, and there is no need to add additional snake bones or similar structures, which reduces costs while ensuring that the outer diameter of the controllable bend optical fiber structure is small (the outer diameter of the snake bone is relatively large).

[0062] Secondly, if Figure 2 As shown, the preparation method of the present disclosure also includes step S610 and step S620. Among them, in step 610, before the first sleeve 140 is sleeved outside the traction wire, the first sensor harness 120 and the laser optical fiber 110, the monitoring device 370 (such as an infrared device) can be used to monitor whether the positions of the traction wire, the first sensor harness 120 and the laser optical fiber 110 are arranged according to the preset position. For example, the traction wire and the first sensor harness 120 move side by side, and the front end of the laser optical fiber 110 is located 10 cm in front of the traction wire and the first sensor harness 120. Once it is found that the positions of the traction wire, the first sensor harness 120 and the laser optical fiber 110 are not arranged according to the preset position, the moving speed of the conveyor belt 320 can be adjusted so that the three are arranged according to the preset position.

[0063] Step S620 is that after the traction wire, the first sensor harness 120 and the laser fiber 110 are sleeved with the first sleeve 140 , the positions of the traction wire, the first sensor harness 120 and the laser fiber 110 can also be monitored by a monitoring device 370 (such as an infrared device).

[0064] Specifically, multiple infrared devices can emit multiple infrared rays that form a cross-net, and the horizontal and vertical coordinates of the triggering position can be obtained according to the triggered infrared rays to confirm the passing objects (traction wire, first sensor harness 120 and laser optical fiber 110, etc.). Then, the infrared device is connected to the control device to analyze the time difference of the passing objects, and then infer the distance difference of the objects.

[0065] After the first sleeve 140 is set, a lens assembly 150 may be set in front of the inner layer. Specifically, the first sleeve 140 will be connected with the traction wire, the first sensor harness 120 and the laser optical fiber 110, and the front end of the laser optical fiber 110 will be located in front of the first sleeve 140, the traction wire and the first sensor harness 120, so the first sleeve 140, the traction wire and the first sensor harness 120 can be driven by the mechanical arm 330 to drive the laser optical fiber 110, so that the entire inner layer structure moves forward. In the process of the entire inner layer structure moving forward, the lens assembly 150 is assembled by the mechanical arm 330 and the dispensing machine 340, so that the lens assembly 150 is located in front of the first sleeve 140 and the first sensor harness 120 is connected to the harness interface of the lens assembly 150, so that the information obtained by the lens assembly 150 will be transmitted to the outside through the first sensor harness 120. It should be noted that the laser optical fiber needs to protrude forward from the lens assembly 150 to facilitate the emission of laser.

[0066] Next, the second sleeve 160 is sleeved outside the inner layer part and the lens assembly 150 during the process of the inner layer part and the lens assembly 150 moving together. It should be noted that the installation method of the second sleeve 160 is described in the subsequent specification.

[0067] In some optional embodiments, extrusion is performed while the first sensor harness 120, the traction wire and the laser fiber 110 are moving together so that the first sleeve 140 produced by extrusion is sleeved outside the first sensor harness 120, the traction wire and the laser fiber 110; the extrusion speed is adjusted according to the moving speed of the first sensor harness 120, the traction wire and the laser fiber 110 to ensure that the extrusion speed of the plastic is consistent with the moving speed of the first sensor harness 120, the traction wire and the laser fiber 110.

[0068] Specifically, an existing tetrafluoroethylene extrusion molding device can be used to form the first sleeve 140 outside the first sensor harness 120, the traction wire and the laser optical fiber 110. However, the extrusion speed of the extrusion molding device needs to be controlled so that the extrusion speed of the plastic is consistent with the moving speed of the first sensor harness 120, the traction wire and the laser optical fiber 110. More specifically, the laser optical fiber 110 can be allowed to enter the extrusion molding device for a certain distance before starting the extrusion molding so that the front end of the laser optical fiber 110 is located in front of the first sleeve 140. After extrusion molding, the laser optical fiber 110, the first sensor harness 120 and the traction wire will be wrapped.

[0069] It should be noted that the extrusion molding device is connected to the control component 380 by signal, and the extrusion molding device is controlled by the control component 380. Of course, in some embodiments, the extrusion molding device itself may have a control structure to control the extrusion speed of its own extrusion molding device. The extrusion molding device may be an extruder, for example, in some embodiments, the first sleeve 140 is formed by the first extruder 350, and the second sleeve 160 is formed by the second extruder 360.

[0070] In some other optional embodiments, the first sleeve 140 is not formed by extrusion, but the first sensor harness 120, the traction wire and the laser fiber 110 are bonded together during the process of the first sensor harness 120, the traction wire and the laser fiber 110 moving together, and the first sleeve 140 is sleeved outside the first sensor harness 120, the traction wire and the laser fiber 110. Specifically, the first sensor harness 120, the traction wire and the laser fiber 110 are first connected together by the mechanical arm 330 and the glue dispenser 340, and then the combination of the first sensor harness 120, the traction wire and the laser fiber 110 with the outer side fully coated with glue is inserted into the first sleeve 140 to form a bond with the first sleeve 140.

[0071] After the lens assembly 150 is installed, the second sleeve 160 can be sleeved on the inner layer structure to wrap the inner layer structure.

[0072] In addition, in step S100 to step S600, the first sensor harness, the traction wire and the laser optical fiber are kept moving, and the laser optical fiber is kept drawn during the movement of the laser optical fiber. The purpose of this arrangement is to ensure the continuity between the various steps. For example, after the laser optical fiber is drawn, it will be sent to the first extruder for extrusion with the first sensor harness and the traction wire to form a first sleeve on its outside. Moreover, when the laser optical fiber is gradually sent into the first extruder, the subsequent laser optical fiber is also drawn out, ensuring that the laser optical fiber is continuous throughout the production.

[0073] Optionally, the method includes step S110, moving the second sensor harness so that the first sensor harness 120, the second sensor harness, the traction wire and the laser optical fiber move together. In addition, the method also includes step S210, in the process of the first sensor harness, the second sensor harness, the traction wire and the laser optical fiber moving together, the first sleeve is sleeved on the outside of the first sensor harness, the second sensor harness, the traction wire and the laser optical fiber to form an inner layer; in the process of the inner layer moving, a temperature and pressure sensor is arranged in front of the first sleeve, and the temperature and pressure sensor is connected to the second sensor harness. The above method is used to provide the controllable bending optical fiber structure with the function of measuring temperature and pressure. Specifically, the temperature and pressure sensor 152 includes a temperature sensor and / or a pressure sensor. For example, a temperature sensor with a thermistor and a pressure sensor with a varistor can be arranged for measurement. In order to ensure the accuracy of the measurement, the temperature and pressure sensor 152 is arranged on the side of the lens assembly 150. This ensures that when the laser fiber extends from the front of the lens assembly 150, the temperature and pressure sensor 152 located on the side is less affected by the thermal effect, back reflection, etc. of the laser fiber, so that the situation inside the patient's body can be accurately measured.

[0074] Specifically, the lens assembly 150 includes a lens 151 and a mounting member 153. The lens 151 is mounted on the mounting member 153 and located at the front end surface 1531 of the mounting member. The temperature and pressure sensor 152 is located at the side surface 1532 of the mounting member. The mounting member 153 is mounted in front of the sleeve assembly.

[0075] More specifically, the laser optical fiber 110 penetrates the sleeve assembly and extends in front of the mounting member 153 to better emit laser light. In addition, the water pipe also penetrates the mounting member 153, so that the perfusion liquid is sprayed out from the front end of the controllable bending optical fiber structure.

[0076] It should be noted that, in some optional embodiments, the sleeve assembly includes a sleeve body and a spiral tube, and the mounting piece is a hard structure, wherein the sleeve body is a flexible structure. Specifically, the sleeve body includes a first sleeve 140 and a second sleeve 160, and the first sleeve 140 and the second sleeve 160 are flexible structures. The sleeve body is a flexible structure to ensure that it can bend under the action of the traction wire, and the mounting piece 153 is a hard structure to facilitate the assembly of components such as the lens 151 and the sensor.

[0077] For ease of understanding, this disclosure Figure 3 and Figure 5 The first direction M is marked in the figure, and the first direction M is the direction from back to front.

[0078] The laser optical fiber 110 prepared by the present invention includes an illumination optical fiber 190. Specifically, the illumination optical fiber 190 is used to provide light so that the lens assembly 150 can still see the internal structure of the human body clearly after entering the human body. More specifically, the drawn illumination optical fiber 190 will move together with the first sensor harness 120, the second sensor harness 170, the traction wire and the laser optical fiber 110, and in the process of moving together, the first sleeve 140 is sleeved on the first sensor harness 120, the second sensor harness 170, the traction wire, the laser optical fiber 110, and the illumination optical fiber 190 to form an inner layer. At this time, the inner layer includes the first sensor harness 120, the second sensor harness 170, the traction wire, the laser optical fiber 110, and the illumination optical fiber 190. Optionally, a protective cover 191 may be provided on the outside of the illumination optical fiber 190.

[0079] In addition, the inner layer may also include an infusion tube 180, which moves together with the laser optical fiber 110 to be sheathed by the first sleeve 140. The purpose of setting the infusion tube 180 is: first, the laser of the laser optical fiber 110 will generate high temperature when interacting with the stone, and the infusion tube 180 is provided to reduce the body temperature; second, the perfusion liquid of the infusion tube 180 is used to bring out the crushed stone; third, the perfusion liquid of the infusion tube 180 is used to clean the front end of the controllable bending optical fiber structure to avoid the front end lens 151 being blocked, so as to ensure a clear field of view in the surgical area.

[0080] Optionally, the rear ends of the first sensor harness 120, the traction wire and the laser optical fiber 110 protrude from the first sleeve 140 and the second sleeve 160 and are located behind the first sleeve 140 and the second sleeve 160. The purpose of the above design is to install the rear ends of the first sensor harness 120 and the traction wire on the control handle 200.

[0081] Optionally, before the lens assembly 150 is arranged in front of the first sleeve 140 during the movement of the inner layer part, the spiral tube 141 is arranged in front of the first sleeve 140, so that the spiral tube 141 is located between the first sleeve 140 and the lens assembly 150. The second sleeve 160 should be sleeved on the outside of the spiral tube to avoid the spiral tube being exposed.

[0082] The present disclosure provides a controllable bend optical fiber structure, which is prepared by a controllable bend optical fiber structure preparation method. Specifically, Figure 3-7As shown, the controllable bending optical fiber structure includes a laser optical fiber 110, a first sensor harness 120, a traction wire, a first sleeve 140, a second sleeve 160, and a lens assembly 150. The first sleeve 140 is sleeved outside the laser optical fiber 110, the first sensor harness 120, and the traction wire, the second sleeve 160 is sleeved outside the first sleeve 140 and part of the lens assembly 150, and the lens assembly 150 is located in front of the first sleeve 140. In addition, the controllable bending optical fiber structure also includes an infusion tube 180, which is located inside the first sleeve 140.

[0083] Optionally, the controllable bending optical fiber structure includes an illumination optical fiber 190 and a second sensor harness 170 , and the second sensor harness 170 and the illumination optical fiber 190 are located in the first sleeve 140 .

[0084] More specifically, the front end of the laser fiber 110 protrudes 10 cm beyond the front end of the illumination fiber 190, and the front end of the illumination fiber 190 is arranged side by side with the front end of the infusion tube 180 and the front end of the traction wire, and the front end of the illumination fiber 190 protrudes 0.5 cm beyond the front ends of the first sensor harness 120 and the second sensor harness 170, that is, the front end of the laser fiber 110 protrudes 10.5 cm beyond the front ends of the first sensor harness 120 and the second sensor harness 170.

[0085] The first sleeve 140 is arranged side by side with the first sensor harness 120 and the second sensor harness 170. That is, the front end of the illumination optical fiber 190, the front end of the infusion tube 180 and the front end of the traction wire protrude from the first sleeve 140. The front end of the second sleeve 160 is located in front of the first sleeve 140 and is connected to the lens assembly 150.

[0086] In addition, a spiral tube 141 is provided between the front end of the first sleeve and the kit, and the spiral tube mainly provides a certain hardness and supporting force for the controllable bend optical fiber structure to prevent the front end of the controllable bend optical fiber structure from being completely deformed when bending.

[0087] The spiral tube 141 can be a hollow tube made of metal or non-metal material, and a groove is cut into it, as shown in FIG. Fig.12 As shown. The shape of the groove can be one or a combination of a teardrop shape, a bullet shape, a waist hole, a circle, a spiral shape, etc., wherein the proximal end, the middle section, and the distal end have different densities and the shapes can be the same or different. Moreover, the spiral tube can have a certain elasticity to facilitate the reset of the controllable bending optical fiber structure.

[0088] In addition, if Figure 8As shown, the controllable bending optical fiber structure also includes a handle 200, which includes a housing 210 and a bending adjustment assembly 220. The bending adjustment assembly 220 is arranged on the housing 210 and includes a first swing arm knob 230, a second swing arm knob 240 and a knob box 250. The rotating box is provided with a first rotating member 260 and a second rotating member. The first rotating member 260 is connected to the first swing arm knob 230, and the second rotating member is connected to the second swing arm knob 240. The traction wire includes a first traction wire 131, a second traction wire 132, a third traction wire 133 and a fourth traction wire 134. The rear end of the first traction wire 131 and the rear end of the second traction wire 132 are connected to both sides of the first rotating member 260, and the front end of the first traction wire 131 and the front end of the second traction wire 132 are respectively fixed to the left and right sides of the first sleeve 140. Therefore, after the first swing arm knob 230 is rotated, it can drive the first rotating member 260 to rotate and drive one of the first traction wire 131 and the second traction wire 132 to loosen, and the other is tightened to drive the front end of the first sleeve 140 to bend to the left or right, thereby driving the laser fiber 110 to bend and the orientation of the lens assembly 150 to change. Similarly, the rear end of the third traction wire 133 and the rear end of the fourth traction wire 134 are connected to both sides of the second rotating member, and the front end of the third traction wire 133 and the front end of the fourth traction wire 134 are respectively fixed to the upper and lower sides of the first sleeve 140. Therefore, after the second swing arm knob 240 is rotated, it can drive the second rotating member to rotate and drive one of the third traction wire 133 and the fourth traction wire 134 to loosen, and the other is tightened to drive the rear end of the first sleeve 140 to bend upward or downward.

[0089] In addition, if Fig. 9 As shown, the housing 210 is formed with an entrance 211 and a harness exit 212. The entrance of the housing 210 is used for the rear end of the controllable bend optical fiber structure to enter therein, and the harness exit is mainly used for the illumination optical fiber 190, the first sensor harness 120 and the second sensor harness 170 to exit the housing 210. After the illumination optical fiber 190 exits the harness exit, it will be connected to the light source to provide illumination for the controllable bend optical fiber structure. After the first sensor harness 120 exits the harness exit, it will be connected to the image processor. After the image information collected by the lens 151 on the lens assembly 150 is transmitted to the image processor via the first sensor harness, it is processed by the image processor and presented on the display screen. After the second sensor harness 170 exits the harness exit, it is connected to the control assembly to transmit the temperature information and pressure information obtained by the temperature and pressure sensor 152 to the control assembly.

[0090] At the same time, the housing 210 is formed with an optical fiber outlet, and the rear end of the laser optical fiber 110 can be connected to the laser treatment machine through the optical fiber 110. The laser emitted by the laser treatment machine can reach the front of the controllable bending optical fiber structure through the laser optical fiber 110 and crush the stones located in front of the controllable bending optical fiber.

[0091] Optionally, the controllable bend optical fiber structure can be used in conjunction with an outer sheath tube 400. Specifically, the outer sheath tube 400 is sleeved in the middle of the controllable bend optical fiber structure, and the outer sheath tube 400 forms an outer sheath tube channel 410. Fig.11 As shown, the outer sheath channel 410 is formed with a first opening 420, a second opening 430 and a third opening 440. The first opening 420 is located at the front end of the outer sheath 400, and the second opening 430 is located at the rear end of the outer sheath 400. The controllable bending optical fiber structure enters from the second opening 430 and passes through the outer sheath channel 410, and finally extends from the first opening 420.

[0092] In addition, there is a gap between the controllable bending optical fiber structure and the outer sheath tube channel 410 to form a suction channel, which can be connected to the suction component to suck out the perfusion fluid in the patient's body. Specifically, the suction channel is connected to the third opening 440, and the suction component can be placed at the third opening 440.

[0093] When using the controllable bending optical fiber structure disclosed in the present invention, first, connect the light source to the illumination optical fiber 190 to illuminate the internal structure of the body. Secondly, the front end of the controllable bending optical fiber structure can be gradually extended into the patient's body, passing through the bladder and reaching the patient's ureter. The position of the stone in the ureter is observed by the lens 151 on the lens assembly 150, and the front end of the first sleeve 140 is controlled by the handle 200 to bend, thereby driving the front end of the laser optical fiber 110 located in the first sleeve 140 to bend. At this time, the infusion tube 180 and the illumination optical fiber 190 will also bend. Then, the perfusion fluid is input into the infusion tube 180, so that the perfusion fluid is delivered to the lesion area while cleaning the lens 151 located at the front end of the controllable bending optical fiber structure. At the same time, start the laser treatment machine, let the laser be emitted from the laser treatment machine and shoot along the laser optical fiber 110 to the stone to crush the stone. The crushed stone gradually flows out of the bladder through the reflux of the perfusion fluid (at this time, the patient should have an outer sheath 400 in the body to facilitate the reflux of the perfusion fluid).

[0094] The perfusion fluid generally refers to the fluid injected in medical surgery or scientific research experiments to maintain the activity of organs, tissues or cells, clean them or for specific treatment purposes. In the present disclosure, the perfusion fluid can be saline, glucose solution or mannitol solution, which is mainly used to flush and clean the surgical area to make the surgical area clear, prevent thermal damage caused by laser, and allow small particles after lithotripsy to be discharged from the body with the help of saline flow.

[0095] In addition, the present disclosure provides a controllable bending optical fiber structure preparation device, including: an optical fiber drawing machine 310, a moving device, a first sleeve device, a mechanical arm 330, a glue dispenser 340, a second sleeve device, a monitoring device 370 and a control component 380. The optical fiber drawing machine 310 is used to draw the laser optical fiber 110. The moving device can drive the laser optical fiber 110, the first sensor harness 120 and the traction wire to move respectively. Specifically, the moving device includes a plurality of pairs of conveyor belts 320 and a plurality of mechanical arms 330. More specifically, before the first sensor, the traction wire and the laser optical fiber 110 are sleeved in the first sleeve 140, a plurality of pairs of conveyor belts (a plurality of pairs of conveyor belts include two conveyor belts) 320 can be used to clamp them respectively to drive them to move. After the first sensor, the traction wire and the laser optical fiber 110 are sleeved with the first sleeve 140, the mechanical arm 330 can drive the laser optical fiber 110 to move so as to drive the first sensor, the traction wire and the first sleeve 140 to move. The movement of other structures (such as the second sensor harness 170 and the infusion tube 180 ) can be carried out by using a conveyor belt 320 or a robot arm 330 according to the actual situation.

[0096] It should be noted that when the conveyor belt 320 is used to move the object, a pair of conveyor belts 320 is used to clamp the object, and the conveyor belts 320 are used to drive the object to move.

[0097] The first sleeve device is used to sleeve the first sleeve 140 outside the first sensor harness 120, the traction wire and the laser fiber 110. Specifically, the first sleeve device can be a first extruder 350. The first extruder 350 is used to extrude the first sensor harness 120, the traction wire and the laser fiber 110 to form the first sleeve 140 sleeved on the first sensor harness 120, the traction wire and the laser fiber 110. The robot arm 330 and the glue dispenser 340 are used to install the lens assembly 150 in front of the first sleeve 140.

[0098] The second sleeve device is used to arrange the second sleeve 160 outside the first sleeve 140. Specifically, the second sleeve device is a second extruder 360, which is used to extrude the first sleeve 140 to form the second sleeve 160.

[0099] The monitoring device 370 is used to monitor the moving speed of the laser optical fiber 110, the first sensor harness 120 and the traction wire, wherein the monitoring device 370 can be an infrared detection device or the like, which can detect the passage of objects.

[0100] The control component 380 is respectively connected to the optical fiber drawing machine 310, the mobile device, the first extruder 350, the mechanical arm 330, the glue dispenser 340, the second extruder 360 and the monitoring device 370 by signals. The control component 380 generally controls the operations of the optical fiber drawing machine 310, the mobile device, the first extruder 350, the mechanical arm 330, the glue dispenser 340, the second extruder 360 and the monitoring device 370, such as operations associated with display, data communication, and recording operations. The control component 380 may include one or more processors to execute instructions.

[0101] More specifically, when the positions of structures such as the first sensor harness 120, the traction wire, and the laser optical fiber 110 are not arranged according to the preset positions, the control component 380 can control the moving device to adjust the moving speed of structures such as the first sensor harness 120, the traction wire, and the laser optical fiber 110 so that each structure is arranged according to the preset positions.

[0102] Meanwhile, the control component 380 can control the extrusion speeds of the first extruder 350 and the second extruder 360 so that the extruders extrude at a predetermined speed to form the first sleeve 140 and the second sleeve 160 .

[0103] The controllable bending optical fiber structure preparation method disclosed in the present invention can produce a controllable bending optical fiber structure with a lens 151. The controllable bending optical fiber structure can observe the internal conditions of the patient through the lens assembly 150, and control the bending of the laser optical fiber 110 through the traction wire so that the laser can crush the stones in the patient's body. At the same time, an infusion tube is provided to provide perfusion fluid to cool and clean the lens, ensuring the safety and efficiency of the entire operation.

[0104] Secondly, the preparation method can complete the assembly during the production and movement of the parts, avoiding the low production efficiency caused by each step being performed separately. Specifically, the laser optical fiber 110 does not need to be placed on the turntable after being drawn. The user can directly adjust the transmission speed of the first sensor harness 120 and the traction wire according to the drawing speed of the laser optical fiber 110, so that the speeds of the three are consistent to complete the extrusion and then the outer casing 140 is installed, which greatly reduces the preparation time.

[0105] Obviously, the above embodiments of the present disclosure are merely examples for clearly illustrating the present disclosure, and are not intended to limit the implementation methods of the present disclosure. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the claims of the present disclosure.

Claims

1. A method for preparing a controllable bending optical fiber structure, characterized in that: include: Drawing a laser optical fiber and pulling the laser optical fiber to move; Moving the first sensor harness and the traction wire so that the first sensor harness, the traction wire and the laser optical fiber move together; When the first sensor harness, the traction wire and the laser optical fiber move together, a first sleeve is sleeved outside the first sensor harness, the traction wire and the laser optical fiber to form an inner layer; Disposing a lens assembly in front of the first sleeve during the movement of the inner layer portion, wherein the lens assembly is connected to the first sensor harness; When the inner layer part moves together with the lens assembly, the second sleeve is sleeved outside the inner layer part; Monitoring the positions of the first sensor harness, the traction wire, and the laser optical fiber to control the positions of the first sensor harness, the traction wire, and the laser optical fiber to be arranged at a preset position during the process of moving together; The first sensor harness, the traction wire and the laser optical fiber keep moving all the time, and the laser optical fiber is pulled all the time during the movement of the laser optical fiber.

2. The method for preparing a controllable bending optical fiber structure according to claim 1, characterized in that: include: Moving the second sensor harness so that the first sensor harness, the second sensor harness, the traction wire and the laser optical fiber move together; During the process that the first sensor harness, the second sensor harness, the traction wire and the laser optical fiber move together, a first sleeve is sleeved outside the first sensor harness, the second sensor harness, the traction wire and the laser optical fiber to form an inner layer; During the movement of the inner layer part, a temperature and pressure sensor is arranged in front of the first sleeve, and the temperature and pressure sensor is connected to the second sensor harness.

3. The method for preparing a controllable bending optical fiber structure according to claim 1, characterized in that: include: The front end of the laser optical fiber extends out of the first sleeve and is located in front of the first sleeve.

4. The method for preparing a controllable bending optical fiber structure according to claim 1, characterized in that: During the process of the first sensor harness, the traction wire and the laser optical fiber moving together, extrusion is performed to sleeve the first sleeve produced by the extrusion around the first sensor harness, the traction wire and the laser optical fiber; The extrusion speed is adjusted according to the moving speeds of the first sensor harness, the traction wire and the laser optical fiber to ensure that the extrusion speed of the plastic is consistent with the moving speeds of the first sensor harness, the traction wire and the laser optical fiber.

5. The method for preparing a controllable bending optical fiber structure according to claim 1, characterized in that: The first sensor harness, the traction wire and the laser optical fiber are bonded together during the process of the first sensor harness, the traction wire and the laser optical fiber moving together, and the first sleeve is sleeved over the first sensor harness, the traction wire and the laser optical fiber.

6. The method for preparing a controllable bending optical fiber structure according to claim 1, characterized in that: Before the first sleeve is sleeved on the first sensor harness, the traction wire and the laser optical fiber, the positions of the first sensor harness, the traction wire and the laser optical fiber are monitored; After the first sleeve is sleeved on the first sensor harness, the traction wire and the laser optical fiber, the positions of the first sensor harness, the traction wire and the laser optical fiber are monitored.

7. The method for preparing a controllable bending optical fiber structure according to claim 1, characterized in that: During the process that the first sensor harness, the traction wire and the laser optical fiber move together, the infusion tube moves together with the first sensor harness, the traction wire and the laser optical fiber; The first sleeve is sleeved on the first sensor harness, the traction wire, the laser optical fiber and the infusion tube to form an inner layer.

8. The method for preparing a controllable bending optical fiber structure according to claim 1, characterized in that: The first sensor harness, the traction wire and the laser optical fiber are driven to move by a clamping conveyor belt, and the positions of the first sensor harness, the traction wire and the laser optical fiber are monitored by a monitoring device.

9. A device for preparing a controllable bending optical fiber structure, comprising: Fiber drawing machine to draw laser optical fiber; A moving device, wherein the moving device drives the laser optical fiber, the first sensor harness and the traction wire to move respectively; A first sleeve device, used for sleeve-mounting a first sleeve outside the first sensor harness, the traction wire and the laser optical fiber; A robotic arm and a glue dispenser to install the lens assembly in front of the first sleeve; A second sleeve device, used for arranging a second sleeve outside the first sleeve; A monitoring device, used to monitor the moving speed of the laser optical fiber, the first sensor harness and the traction wire; A control component is respectively connected to the optical fiber drawing machine, the moving device, the first extruder, the mechanical arm, the dispensing machine, the second extruder and the monitoring device by signals; Monitoring the positions of the first sensor harness, the traction wire, and the laser optical fiber to control the positions of the first sensor harness, the traction wire, and the laser optical fiber to be arranged at a preset position during the process of moving together; The first sensor harness, the traction wire and the laser optical fiber keep moving all the time, and the laser optical fiber is pulled all the time during the movement of the laser optical fiber.

10. A controllable bending optical fiber structure, characterized in that: The optical fiber is prepared by the method for preparing a controllable bend optical fiber structure according to any one of claims 1 to 8, or prepared by the device for preparing a controllable bend optical fiber structure according to claim 9.

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