CN118873246B - Controllable bend optical fiber structure preparation method, preparation device and controllable bend optical fiber structure - Google Patents
Controllable bend optical fiber structure preparation method, preparation device and controllable bend optical fiber structure Download PDFInfo
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- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
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- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B18/26—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
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- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B2018/2238—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with means for selectively laterally deflecting the tip of the fibre
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B2018/2255—Optical elements at the distal end of probe tips
- A61B2018/2288—Optical elements at the distal end of probe tips the optical fibre cable having a curved distal end
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Abstract
本公开提供一种可控弯光纤结构制备方法、制备装置以及可控弯光纤结构。其中可控弯光纤结构制备方法包括拉制光纤、使得第一传感器线束、牵引丝与激光光纤一起移动，并且在移动过程中加入第一套管、镜头组件以及第二套管以形成一个全新的可控弯光纤结构，来满足现有的输尿管结石粉碎的需要。而且在可控弯光纤结构的制备过程中各个步骤连续进行，大大减少生产时间，提高生产效率。
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
The present disclosure relates to medical devices, and in particular, to a method and apparatus for manufacturing a controllable bend optical fiber structure.
Background
Ureteroscope lithotripsy treats upper urinary tract calculus through a natural cavity of human body urinary tract, has the characteristics of minimally invasive, safe and effective, becomes a preferred treatment mode of kidney calculus with the diameter of less than 2cm, and simultaneously becomes a sharp tool for ureteroscope lithotripsy and a treatment gold standard by matching with a laser energy platform. The ureteral hard lens is suitable for treating the calculus of the middle and lower sections of the ureter, and the ureteral soft lens is more suitable for treating the calculus of the upper sections of the ureter and the kidney.
In ureteral laser lithotripsy, the minimum size that ureteral soft lens can accomplish at present is 9.6Fr. Therefore, the ureteral soft lens cannot pass through the three narrow sections of the ureter to reach the calculus, so that the operation is failed. While the current conventional technique is to use a guidewire, auxiliary catheter or dilator to assist in passing the stenosis.
However, the three have the defects of overlarge difference between the outer diameter of the guide wire and the outer diameter of the visual catheter or the ureteroscope, low actual operation success rate, larger end face hardness of the auxiliary catheter, easiness in causing ureteroscope side injury, higher cost of the independent dilator and complex operation, and the overall diameter of the dilator can be further increased by the dilating device of the inner cavity of the visual catheter or the ureteroscope.
Disclosure of Invention
To address at least one of the above-mentioned drawbacks, the present disclosure provides a method and apparatus for manufacturing a controllable bent optical fiber structure to manufacture a controllable bent optical fiber to extend into a ureter.
In a first aspect, the present disclosure provides a method for preparing a bend-controllable optical fiber structure, comprising:
Drawing a laser fiber and pulling the laser fiber to move;
Moving a first sensor harness and a traction wire such that the first sensor harness, the traction wire, and the laser fiber move together;
sleeving a first sleeve outside the first sensor wire harness, the traction wire and the laser fiber in the process of moving the first sensor wire harness, the traction wire and the laser fiber together to form an inner layer part;
A lens assembly is arranged in front of the first sleeve in the process of moving the inner layer part, wherein the lens assembly is connected with the first sensor wire harness;
sleeving a second sleeve outside the inner layer part in the process that the inner layer part moves together with the lens component;
Monitoring the positions of the first sensor harness, the traction wire and the laser fiber to control the positions of the first sensor harness, the traction wire and the laser fiber in the process of moving together to be arranged according to preset positions,
The first sensor wire harness, the traction wire and the laser fiber are kept moving all the time, and the laser fiber is drawn all the time in the moving process of the laser fiber.
Optionally, moving a second sensor harness such that the first sensor harness, the second sensor harness, the pulling wire, and the laser fiber move together;
Sleeving a first sleeve outside the first sensor wire harness, the second sensor wire harness, the traction wire and the laser fiber in the process of moving the first sensor wire harness, the second sensor wire harness, the traction wire and the laser fiber together to form an inner layer part;
And a temperature and pressure sensor is arranged in front of the first sleeve in the process of moving the inner layer part, and the temperature and pressure sensor is connected with the second sensor wire harness.
Optionally, the front end of the laser fiber extends out of the first sleeve and is positioned in front of the first sleeve.
Optionally, extruding the first sensor harness and the traction wire in the process of moving together with the laser optical fiber so as to sleeve the first sleeve generated by extrusion outside the first sensor harness and the traction wire and the laser optical fiber;
And adjusting extrusion molding speed according to the moving speeds of the first sensor wire harness, the traction wire and the laser fiber, so as to ensure that the extrusion speed of plastic is consistent with the moving speeds of the first sensor wire harness, the traction wire and the laser fiber.
Optionally, the first sensor harness, the traction wire and the laser fiber are bonded together in the process that the first sensor harness, the traction wire and the laser fiber move together, and the first sleeve is sleeved outside the first sensor harness, the traction wire and the laser fiber.
Optionally, before sleeving a first sleeve on the first sensor harness, the traction wire and the laser fiber, monitoring positions of the first sensor harness, the traction wire and the laser fiber;
after a first sleeve is sleeved on the first sensor wire harness, the traction wire and the laser fiber, the positions of the first sensor wire harness, the traction wire and the laser fiber are monitored.
Optionally, in the process that the first sensor wire harness, the traction wire and the laser optical fiber move together, the infusion tube moves together with the first sensor wire harness, the traction wire and the laser optical fiber;
and the first sleeve is sleeved outside the first sensor wire harness, the traction wire, the laser optical fiber and the infusion tube and forms an inner layer part.
Optionally, the clamping conveyor belt drives the first sensor wire harness, the traction wire and the laser fiber to move, and the positions of the first sensor wire harness, the traction wire and the laser fiber are monitored through the monitoring device.
In a second aspect, the present disclosure provides a controllable bend optical fiber structure preparation apparatus, comprising:
an optical fiber drawing machine for drawing a laser optical fiber;
the moving device drives the laser fiber, the first sensor wire harness and the traction wire to move respectively;
The first sleeve device is used for sleeving a first sleeve on the outer sides of the first sensor wire harness, the traction wire and the laser fiber;
The mechanical arm and the dispensing machine are used for installing the lens assembly in front of the first sleeve;
the second sleeve device is used for sleeving a second sleeve outside the first sleeve;
the monitoring device is used for monitoring the moving speed of the laser optical fiber, the first sensor wire harness and the traction wire;
And the control assembly is respectively in signal connection with the optical fiber drawing machine, the moving device, the first plastic extruding machine, the mechanical arm, the dispensing machine, the second plastic extruding machine and the monitoring device.
In a third aspect, the present disclosure provides a controllable bent optical fiber structure, which is prepared by the method for preparing a controllable bent optical fiber structure in any embodiment of the first aspect, or by the apparatus for preparing a controllable bent optical fiber structure in any embodiment of the second aspect.
In addition, the preparation method of the controllable bending optical fiber structure can prepare the controllable bending optical fiber structure which excites laser and the front end of which can be bent, so that a doctor can enter a patient to crush stones by adopting the controllable bending structure. And each step is continuously carried out in the preparation process, so that the production time is greatly reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a block diagram of a method of fabricating a bend-controllable optical fiber structure of the present disclosure.
Fig. 2 is a block diagram of some steps in a method of manufacturing a bend-controllable optical fiber structure of the present disclosure.
Fig. 3 is a schematic structural view of a bend-controllable optical fiber structure of the present disclosure.
Fig. 4 is an enlarged view of a portion a in fig. 3.
FIG. 5 is a schematic illustration of the structure of FIG. 3 with portions of the first ferrule and the second ferrule omitted.
Fig. 6 is an enlarged view of a portion B in fig. 5.
Fig. 7 is an interior cross-sectional view of a bend-controllable optical fiber structure of the present disclosure.
Fig. 8 is a schematic structural view of a portion of a bend-controllable optical fiber structure of the present disclosure.
Fig. 9 is a schematic structural view of a handle of the present disclosure.
Fig. 10 is a diagram showing the connection of the components of the device for manufacturing a bending-controllable optical fiber structure according to the present disclosure.
Fig. 11 is a schematic structural view of the outer sheath of the present disclosure.
Fig. 12 is a schematic structural view of the spiral tube of the present disclosure.
110, Laser fiber, 120, first sensor wire 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 wire harness, 180, infusion tube, 190, illumination fiber, 191, protective sleeve, 200, handle, 210, housing, 211, inlet, 212, wire harness outlet, 220, bending assembly, 230, first swing arm knob, 240, second swing arm knob, 250, knob box, 260, first rotating piece, 310, fiber drawing machine, 320, conveyor belt, 330, mechanical arm, 340, dispenser, 350, first extruder, 360, second extruder, 370, monitoring device, 380, control assembly, 400, sheath tube, 410, sheath tube, 420, first opening, 430, second opening, and third opening.
Detailed Description
It should be understood that the exemplary embodiments described herein should be considered in descriptive sense only and not for purposes of limitation. The description of features or aspects in each exemplary embodiment should be generally considered to be applicable to similar features or aspects in other exemplary embodiments.
The prior art method for preparing the laser fiber with other structures is segmented, and each step is independent. For example, in some embodiments, the entire fiber is drawn and then placed in an extrusion device for extrusion to cover the fiber with a layer of polytetrafluoroethylene to protect the fiber. In this case, the time for manufacturing is greatly increased, which is disadvantageous in preparing a laser fiber structure having a relatively complicated internal structure. In particular, the partially bendable optical fiber structure prepared by the method is mainly used for crushing stones, more structures are needed, and if all the structures are prepared in a sectional mode, the production time is greatly prolonged.
The present disclosure provides a method for manufacturing a controllable bending optical fiber structure, as shown in fig. 1, including:
step S100, drawing a laser fiber and pulling the laser fiber to move;
Step 200, moving the first sensor wire harness and the traction wire so that the first sensor wire harness, the traction wire and the laser fiber move together;
And step S300, sleeving a first sleeve outside the first sensor wire harness, the traction wire and the laser fiber in the process of moving the first sensor wire harness, the traction wire and the laser fiber together to form an inner layer part.
Step 400, a lens assembly is arranged in front of the first sleeve in the process of moving the inner layer part, wherein the lens assembly is connected with the first sensor wire harness.
Step S500, a second sleeve is sleeved outside the inner layer part and the lens assembly in the process of moving the inner layer part and the lens assembly together.
Step S600, positions of the first sensor wire harness, the traction wire and the laser fiber are monitored to control positions of the wire harness, the traction wire and the laser fiber in the moving process of the wire harness, the traction wire and the laser fiber to be arranged according to preset positions.
First, the inner layer portion includes the first sleeve 140, the first sensor harness 120, the traction wire and the laser fiber 110, and the material of the first sleeve 140 is a polymer material with a small friction coefficient, such as a common polytetrafluoroethylene. The first sensor harness 120 is used to connect with the sensor to transmit signals to the sensor. The traction wires are used for guiding the bending of the controllable bending optical fiber structure, specifically, the controllable bending optical fiber structure comprises at least two traction wires, the two traction wires are respectively positioned at two sides, and the purpose of bending the controllable bending optical fiber structure is achieved by pulling one traction wire to relax the traction wire at the other side. The laser fiber 110 is connected to a device for emitting laser light.
The above-mentioned scheme is to form the first sleeve 140 on the outer sides of the first sensor harness 120, the traction wire and the laser fiber 110 by extrusion molding to protect the first sensor harness 120, the traction wire and the laser fiber 110 from damage to the first sensor harness 120, the traction wire and the laser fiber 110, and see fig. 7.
In addition, during the manufacturing process, the laser fiber 110 is drawn by a fiber-optic machine, and the laser fiber 110 is clamped and conveyed by at least two conveyor belts. Meanwhile, the traction wire and the first sensor wire harness 120 are clamped and conveyed by other conveyor belts, the moving speed of the laser optical fiber 110 is guaranteed to be consistent with the moving speeds of the traction wire and the first sensor wire harness 120, and the traction wire, the first sensor wire harness 120 and the laser optical fiber 110 are kept parallel to each other in the moving process. It should be noted that the location of the laser fiber 110 may be different from the traction wire and the first sensor harness 120. For example, the front end of the laser fiber 110 is positioned approximately 10cm in front of the pulling wire and the first sensor harness 120.
It should be noted that, the above solution is different from the existing soft ureteroscope. The inside of the fiber structure is only provided with a flexible tubular structure and a sensor wire harness, and an instrument channel is not required to be additionally arranged, so that the size of the whole controllable bent fiber structure is smaller, and the outer diameter can reach 2-3.2mm. And because external diameter is less and inner structure is mostly flexible structure, so can realize the relatively accurate crooked of controllable crooked optical fiber structure through the traction silk, need not additionally increase snake bone or similar structure, guarantee that the external diameter of controllable crooked optical fiber structure is less (the external diameter of snake bone is great relatively) when reducing the expense.
Next, as shown in fig. 2, the preparation method of the present disclosure further includes step S610 and step S620. In step 610, before the first sleeve 140 is sleeved over the traction wire, the first sensor harness 120, and the laser fiber 110, the monitoring device 370 (e.g., an infrared device) may monitor whether the positions of the traction wire, the first sensor harness 120, and the laser fiber 110 are arranged according to the preset positions. For example, the pulling wire and the first sensor wire harness 120 are advanced side by side, while the front end of the laser fiber 110 is positioned 10cm in front of the pulling wire and the first sensor wire harness 120. Once the positions of the traction wire, the first sensor wire harness 120, and the laser fiber 110 are found not to be aligned in the preset position, the speed of movement of the conveyor belt 320 may be adjusted so that the three are aligned in the preset position.
In step S620, after the first sleeve 140 is sleeved on the traction wire, the first sensor harness 120 and the laser fiber 110, the positions of the traction wire, the first sensor harness 120 and the laser fiber 110 can be monitored by the monitoring device 370 (e.g. infrared device).
Specifically, the plurality of infrared devices may emit a plurality of infrared light rays forming a cross-web, and the passing article (the traction wire, the first sensor harness 120, the laser fiber 110, etc.) may be confirmed by learning the lateral coordinates of the trigger position from the triggered infrared light rays. Then, the infrared device is connected with the control device, so that the time difference of the articles passing through can be analyzed, and the distance difference of the articles can be further deduced.
And after the first sleeve 140 is provided, the lens assembly 150 may be provided in front of the inner layer portion. Specifically, the first sleeve 140 is connected to the traction wire, the first sensor wire harness 120 and the laser fiber 110, and the front end of the laser fiber 110 is located in front of the first sleeve 140, the traction wire and the first sensor wire harness 120, so that the first sleeve 140, the traction wire and the first sensor wire harness 120 can be driven by the mechanical arm 330 to drive the laser fiber 110, so that the whole inner layer structure moves forward. In the process of moving forward the whole inner layer structure, the assembly of the lens assembly 150 is completed by the mechanical arm 330 and the dispenser 340, so that the lens assembly 150 is located in front of the first sleeve 140 and the first sensor harness 120 is connected with the harness interface of the lens assembly 150, and thus the information acquired by the lens assembly 150 is transmitted to the outside through the first sensor harness 120. It should be noted that the laser fiber needs to protrude forward from the lens assembly 150 in order to emit laser light.
Next, the second sleeve 160 is sleeved outside the inner portion and the lens assembly 150 in the process that the inner portion moves together with the lens assembly 150. The manner in which the second sleeve 160 is mounted is described in the following description.
In some alternative embodiments, extrusion is performed during movement of the first sensor harness 120, the traction wire and the laser fiber 110 so as to sleeve a first sleeve 140 generated by extrusion outside the first sensor harness 120, the traction wire and the laser fiber 110, and extrusion speed is adjusted according to movement speeds of the first sensor harness 120, the traction wire and the laser fiber 110, so that extrusion speed of plastic is kept consistent with movement speeds of the first sensor harness 120, the traction wire and the laser fiber 110.
Specifically, an existing extrusion molding apparatus of tetrafluoroethylene may be employed to form the first sleeve 140 outside the first sensor harness 120, the pulling wire and the laser fiber 110. But it is necessary to control the extrusion speed of the extrusion molding apparatus so that the extrusion speed of the plastic is consistent with the moving speeds of the first sensor wire bundle 120, the drawing wire and the laser fiber 110. More specifically, the extrusion may be started after the laser fiber 110 is introduced into the extrusion molding apparatus for a certain distance, so that the front end of the laser fiber 110 is positioned in front of the first sleeve 140. After extrusion molding, the laser fiber 110, the first sensor harness 120, and the pulling wire will be wrapped.
The extrusion molding device is in signal connection with the control unit 380, and the extrusion molding device is controlled by the control unit 380. Of course, in some embodiments, the extrusion device itself may have control structures to control the extrusion rate of the extrusion device itself. While the extrusion apparatus may be an extruder, for example, in some embodiments, a first extruder 350 is used to form the first sleeve 140 and a second extruder 360 is used to form the second sleeve 160.
In other alternative embodiments, the first sleeve 140 is not formed by extrusion, but rather the first sensor harness 120, the pulling wire, and the laser fiber 110 are bonded together during movement of the first sensor harness 120, the pulling wire, and the laser fiber 110, and the first sleeve 140 is sleeved over the first sensor harness 120, the pulling wire, and the laser fiber 110. Specifically, the first sensor harness 120, the traction wire and the laser fiber 110 are connected together by the mechanical arm 330 and the dispensing machine 340, and then the combination of the first sensor harness 120, the traction wire and the laser fiber 110, the outside of which is coated with glue solution, is inserted into the first sleeve 140 to form adhesion with the first sleeve 140.
When the installation of the lens assembly 150 is completed, the second sleeve 160 may be sleeved on the inner layer structure to wrap the inner layer structure.
Further, in steps S100 to S600, the first sensor harness, the pulling wire and the laser fiber are kept moving all the time, and the drawing of the laser fiber is kept during the movement of the laser fiber. The purpose of this is to ensure that there is a consistency between the individual steps. For example, when the laser fiber is drawn, it is fed into a first extruder with a first sensor wire bundle and a pulling wire to be extruded to form a first jacket on the outside thereof. And when the laser fiber is gradually fed into the first plastic extruding machine, the subsequent laser fiber is also drawn all the time, so that the laser fiber is ensured to be continuously produced in the whole production process.
Optionally, step S110 is included, moving the second sensor harness such that the first sensor harness 120, the second sensor harness, the traction wire, and the laser fiber move together. In addition, the method further comprises the step S210 of sleeving the first sleeve outside the first sensor wire harness, the second sensor wire harness, the traction wire and the laser fiber in the process of moving the first sensor wire harness, the second sensor wire harness, the traction wire and the laser fiber together to form an inner layer part, and setting a temperature pressure sensor in front of the first sleeve in the process of moving the inner layer part, wherein the temperature pressure sensor is connected with the second sensor wire harness. The temperature and pressure measuring function is provided for the controllable bent optical fiber structure through the mode. Specifically, the temperature and pressure sensor 152 includes a temperature sensor and/or a pressure sensor, and for example, a temperature sensor having a temperature-sensitive resistor and a pressure sensor having a pressure sensitive resistor may be provided to perform measurement. To ensure accuracy of measurement, a temperature and pressure sensor 152 is provided at a side of the lens assembly 150. This ensures that when the laser fiber is extended from the front of the lens assembly 150, the temperature and pressure sensor 152 located at the side is reduced to be affected by the thermal effect, retro-reflection, etc. of the laser fiber, and the condition inside the patient can be accurately measured.
Specifically, the lens assembly 150 includes a lens 151 and a mount 153, the lens 151 is mounted on the mount 153 at a front end surface 1531 of the mount, the temperature and pressure sensor 152 is located at a side surface 1532 of the mount, and the mount 153 is mounted in front of the sleeve assembly.
More specifically, the laser fiber 110 extends through the ferrule assembly and out in front of the mounting member 153 to better laser light. In addition, the water pipe also penetrates through the mounting member 153, so that the perfusate is sprayed out from the front end of the controllable bending optical fiber structure.
It should be noted that in some alternative embodiments, the sleeve assembly includes a sleeve body and a spiral tube, and the mounting member is a rigid 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 of a flexible structure to ensure that the sleeve body can bend under the action of the traction wire, and the mounting piece 153 is of a hard structure to facilitate assembly of the lens 151, the sensor and other components.
For ease of understanding, the present disclosure labels a first direction M in fig. 3 and 5, the first direction M being a back-to-front direction.
The laser fiber 110 produced by the present disclosure includes an illumination fiber 190. In particular, the illumination fibers 190 are used to provide light so that the body interior structure is still apparent after entering the body lens assembly 150. More specifically, the drawn illumination fiber 190 will move with the first sensor harness 120, the second sensor harness 170, the pulling wire, and the laser fiber 110, and the first sleeve 140 will be sleeved outside the first sensor harness 120, the second sensor harness 170, the pulling wire, the laser fiber 110, and the illumination fiber 190 during the movement together to form an inner layer portion. At this time, the inner layer portion includes the first sensor harness 120, the second sensor harness 170, the traction wire, the laser fiber 110, and the illumination fiber 190. Optionally, a protective sleeve 191 can be sleeved outside the illumination fiber 190
In addition, the inner portion may also include an infusion tube 180, where the infusion tube 180 moves with the laser fiber 110 to be sleeved by the first sleeve 140. The infusion tube 180 is provided for the purposes of bringing high temperature when the laser of the first laser fiber 110 acts on stones, reducing the temperature in the body by arranging the infusion tube 180, bringing crushed stones out by the perfusion liquid of the infusion tube 180, and cleaning the front end of the controllable bent optical fiber structure by the perfusion liquid of the infusion tube 180 to prevent the lens 151 at the front end from being blocked, so as to ensure the clear view field of an operation area.
Optionally, the rear ends of the first sensor harness 120, the traction wire, and the laser 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 mount the first sensor harness 120 and the rear end of the traction wire on the control handle 200.
Optionally, a coil 141 is disposed in front of the first sleeve 140 before the lens assembly 150 is disposed in front of the first sleeve 140 during movement of the inner portion such that the coil 141 is located between the first sleeve 140 and the lens assembly 150. And the second sleeve 160 should be sleeved on the outside of the spiral tube to avoid the exposure of the spiral tube.
The present disclosure provides a controllable bend optical fiber structure, which is prepared by a controllable bend optical fiber structure preparation method. Specifically, as shown in fig. 3-7, the bend-controllable optical fiber structure includes a laser fiber 110, a first sensor harness 120, a traction wire, a first ferrule 140, a second ferrule 160, and a lens assembly 150. The first sleeve 140 is sleeved outside the laser 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 positioned in front of the first sleeve 140. In addition, the bend-controllable optical fiber structure further includes an infusion tube 180, and the infusion tube 180 is positioned within the first cannula 140.
Optionally, the bend-controllable optical fiber structure includes an illumination optical fiber 190 and a second sensor harness 170, the second sensor harness 170 and the illumination optical fiber 190 being located within the first sleeve 140.
More specifically, the front end of the laser fiber 110 protrudes 10cm from the front end of the illumination fiber 190, and the front end of the illumination fiber 190 is disposed side by side with the front ends of the infusion tube 180 and the traction wire, and the front end of the illumination fiber 190 protrudes 0.5cm from 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 10.5cm from the front ends of the first sensor harness 120 and the second sensor harness 170.
And the first sleeve 140 is disposed side-by-side with the first sensor harness 120 and the second sensor harness 170. I.e. the front end of the illumination fiber 190 and the front end of the infusion tube 180 and the front end of the pulling wire protrude from the first cannula 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.
In addition, a spiral tube 141 is arranged between the front end of the first sleeve and the sleeve, and the spiral tube mainly provides certain hardness and supporting force for the controllable bending optical fiber structure, so that the front end of the controllable bending optical fiber structure is prevented from being deformed completely during bending.
The spiral tube 141 may be a hollow tube of metal or non-metal material and is cut to form a groove, as shown particularly in fig. 12. The shape of the grooves may be one or a combination of drop-type, bullet-type, kidney-shaped holes, circular, spiral, etc., wherein the proximal, intermediate, distal densities are different and the shapes may be the same or different. And the spiral tube can have certain elasticity so as to facilitate the resetting of the controllable bent optical fiber structure.
In addition, as shown in fig. 8, the controllable bending optical fiber structure further includes a handle 200, the handle 200 includes a housing 210 and a bending adjustment assembly 220, the bending adjustment assembly 220 is disposed on the housing 210, the bending adjustment assembly 220 includes a first swing arm knob 230, a second swing arm knob 240, and a knob box 250, a first rotating member 260 and a second rotating member are disposed in the rotating box, the first rotating member 260 is connected with the first swing arm knob 230, and the second rotating member is connected with the second swing arm knob 240. The traction wires include a first traction wire 131, a second traction wire 132, a third traction wire 133, and a fourth traction wire 134. The rear ends of the first and second traction wires 131 and 132 are connected to both sides of the first rotating member 260, and the front ends of the first and second traction wires 131 and 132 are respectively fixed to the left and right sides of the first sleeve 140. Therefore, after the first swing arm knob 230 rotates, the first rotating member 260 is driven to rotate and one of the first traction wire 131 and the second traction wire 132 is driven to loosen, and the other one is tightened to drive the front end of the first sleeve 140 to bend left or right, so as to drive the laser fiber 110 to bend and the lens assembly 150 to change in orientation. Similarly, the rear ends of the third traction wire 133 and the fourth traction wire 134 are connected to both sides of the second rotating member, and the front ends of the third traction wire 133 and 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 rotates, the second rotating member can be driven to rotate and one of the third traction wire 133 and the fourth traction wire 134 is driven to be loosened, and the other one is tightened to drive the rear end of the first sleeve 140 to bend upwards or downwards.
Further, as shown in fig. 9, the housing 210 is formed with an inlet 211 and a harness outlet 212. Wherein the inlet of the housing 210 is for the rear end of the bend-controllable optical fiber structure to enter therein, and the harness outlet is primarily for the illumination optical fiber 190, the first sensor harness 120, and the second sensor harness 170 to exit from the housing 210. And illumination fibers 190 will be connected to a light source after exiting the harness exit to provide illumination to the bend-controllable fiber structure. The first sensor harness 120 will be connected to the image processor after exiting the harness outlet. The image information collected by the lens 151 on the lens assembly 150 is transmitted to the image processor through the first sensor harness, processed through the image processor and presented on the display screen. The second sensor harness 170 is connected to the control assembly after exiting the harness outlet to transmit temperature information and pressure information from the temperature and pressure sensor 152 to the control assembly.
Meanwhile, the housing 210 is formed with a fiber outlet from which the rear end of the laser fiber 110 may come out to be connected with a laser treatment machine. Laser light emitted by the laser therapy apparatus can reach the front of the controllable bending optical fiber structure through the laser optical fiber 110 and smash stones positioned in front of the controllable bending optical fiber.
Alternatively, a bend-controllable fiber structure may be used with the outer sheath 400. Specifically, the outer sheath 400 is sleeved in the middle of the bend-controllable optical fiber structure, and the outer sheath 400 is formed with an outer sheath channel 410. As shown in fig. 11, 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, the second opening 430 is located at the rear end of the outer sheath 400, and the bendable optical fiber structure enters and passes through the outer sheath channel 410 from the second opening 430, and finally protrudes from the first opening 420.
In addition, there is a gap between the buckling controllable fiber structure and the outer sheath channel 410 to form a suction channel that can be connected to a suction assembly to aspirate perfusate out of the patient. Specifically, the suction channel communicates with the third opening 440, and the suction assembly is placed at the third opening 440.
In using the bend-controllable optical fiber structure of the present disclosure, first, a light source is connected to the illumination optical fiber 190 in order to illuminate the structure inside the body. Second, the front end of the bend-controllable optical fiber structure can be gradually extended into the patient's body, after passing through the bladder, to reach the ureter of the patient. The position of the calculus in the ureter is observed through the lens 151 on the lens assembly 150, and the front end bending of the first sleeve 140 is controlled through the handle 200 so as to drive the front end bending of the laser fiber 110 positioned in the first sleeve 140. At this time, the infusion tube 180 and the illumination fiber 190 are also bent. Next, a perfusion fluid is input into the infusion tube 180, so that the perfusion fluid is delivered to the focus area while the lens 151 positioned at the front end of the controllable bent optical fiber structure is cleaned. At the same time, the laser treatment machine is started, so that laser is emitted from the laser treatment machine and is emitted to the calculus along the laser fiber 110 to crush the calculus. The crushed stones gradually flow out of the bladder through the reflux of the perfusate (at this time, the patient should have an outer sheath 400 to facilitate reflux of the perfusate).
Where perfusate generally refers to a liquid that is injected in order to maintain the viability of an organ, tissue or cell, clean or for a particular therapeutic purpose during a medical procedure or scientific study. In the present disclosure, the perfusate may be physiological saline, a glucose solution or a mannitol solution, which is mainly used for flushing and cleaning the operation area to make the operation area clear, and small particles after preventing the laser from generating thermal injury and lithotripsy can be discharged out of the body through the assistance of the flow of the physiological saline.
In addition, the present disclosure provides a controllable bend optical fiber structure preparation apparatus, comprising an optical fiber drawing machine 310, a moving device, a first sleeve device, a mechanical arm 330, a dispensing machine 340, a second sleeve device, a monitoring device 370, and a control assembly 380. The optical fiber drawing machine 310 is used to draw the laser optical fiber 110. The moving device can drive the laser fiber 110, the first sensor harness 120 and the traction wire to move respectively, and 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 fiber 110 are sleeved in the first sleeve 140, a plurality of pairs of conveyor belts (the plurality of pairs of conveyor belts include two conveyor belts) 320 may be used to respectively clamp them to move. After the first sleeve 140 is sleeved on the first sensor, the traction wire and the laser fiber 110, the mechanical arm 330 can drive the laser fiber 110 to move so as to drive the first sensor, the traction wire and the first sleeve 140 to move. While movement of other structures (e.g., the second sensor harness 170 and the infusion tube 180) may optionally employ the conveyor belt 320 or the robotic arm 330, as appropriate.
It should be noted that, when the conveyor belt 320 is used to move the article, a pair of conveyor belts 320 are used to clamp the article, and the conveyor belt 320 is used to move the article.
And the first sleeve device is used for sleeving the first sleeve 140 outside the first sensor wire harness 120, the traction wire and the laser fiber 110. Specifically, the first sleeve device may be a first extruder 350. The first extruder 350 is configured to extrude the first sensor harness 120, the pulling wire, and the laser fiber 110 to form a first sleeve 140 that is positioned over the first sensor harness 120, the pulling wire, and the laser fiber 110. The mechanical arm 330 and the dispenser 340 are used to mount the lens assembly 150 in front of the first sleeve 140.
A second sleeve means for sheathing the second sleeve 160 around the first sleeve 140. Specifically, the second sleeve apparatus is a second extruder 360 for extruding outside of the first sleeve 140 to form a second sleeve 160.
The monitoring device 370 is configured to monitor the moving speed of the laser fiber 110, the first sensor harness 120, and the traction wire, where the monitoring device 370 may be an infrared detection device or the like, and is capable of detecting the passing of an article.
The control assembly 380 is in signal communication with the optical fiber drawing machine 310, the moving device, the first extruder 350, the robotic arm 330, the dispenser 340, the second extruder 360, and the monitoring device 370, respectively. The control assembly 380 generally controls operations of the optical fiber drawing machine 310, the moving device, the first extruder 350, the robotic arm 330, the dispensing machine 340, the second extruder 360, and the monitoring device 370, such as operations associated with display, data communication, and recording operations. Control component 380 may include one or more processors to execute instructions.
More specifically, when the positions of the structures such as the first sensor harness 120, the traction wire, and the laser fiber 110 are not arranged in the preset positions, the control assembly 380 may control the moving device to adjust the moving speed of the structures such as the first sensor harness 120, the traction wire, and the laser fiber 110 so that the structures are arranged in the preset positions.
Meanwhile, the control assembly 380 may control the extrusion speeds of the first extruder 350 and the second extruder 360 to allow the extruders to extrude at a predetermined speed to form the first and second bushings 140 and 160.
The preparation method of the controllable bending optical fiber structure can produce the controllable bending optical fiber structure with the lens 151. The controllable bending optical fiber structure can observe the internal condition of a patient through the lens assembly 150, and the bending of the laser optical fiber 110 is controlled through the traction wire so that the laser can crush stones in the patient. Meanwhile, the infusion tube is arranged to provide perfusion liquid for cooling and cleaning the lens, so that the safety and high efficiency of the whole operation are ensured.
Secondly, the preparation method can complete assembly in the process of component production and movement, and low production efficiency caused by independent operation of each step is avoided. Specifically, after the laser fiber 110 is drawn, the laser fiber 110 does not need to be placed on the turntable, and a user can directly adjust the transmission speeds of the first sensor wire harness 120 and the traction wire according to the drawing speed of the laser fiber 110, so that the speeds of the first sensor wire harness 120 and the traction wire are kept consistent to complete extrusion molding and then the first sleeve 140 is sleeved outside, and the preparation time is greatly reduced.
It is apparent that the above examples of the present disclosure are merely examples for clearly illustrating the present disclosure and are not limiting of the embodiments of the present disclosure. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modifications, equivalent substitutions, improvements, etc. that fall within the spirit and principles of the present disclosure are intended to be included within the scope of the claims of the present disclosure.
Claims (10)
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| CN117631183A (en) * | 2023-12-27 | 2024-03-01 | 远东通讯有限公司 | Flexible sleeve optical cable and preparation method thereof |
| CN118330825A (en) * | 2024-04-26 | 2024-07-12 | 天津恒宇医疗科技有限公司 | Laser ablation catheter and manufacturing method thereof |
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| US8936630B2 (en) * | 2009-11-25 | 2015-01-20 | Medtronic, Inc. | Optical stimulation therapy |
| CN111796375B (en) * | 2020-08-06 | 2023-12-05 | 上海瑞柯恩激光技术有限公司 | Transmission optical fiber, laser optical fiber structure and preparation method of transmission optical fiber |
| CN215960134U (en) * | 2021-08-31 | 2022-03-08 | 江苏伊凯医疗器械有限公司 | Disposable minimally invasive double-channel reducing expansion sheath capable of measuring pressure and temperature |
| CN220695226U (en) * | 2023-03-31 | 2024-04-02 | 深圳市美好创亿医疗科技股份有限公司 | Endoscope insertion part and endoscope |
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| CN117631183A (en) * | 2023-12-27 | 2024-03-01 | 远东通讯有限公司 | Flexible sleeve optical cable and preparation method thereof |
| CN118330825A (en) * | 2024-04-26 | 2024-07-12 | 天津恒宇医疗科技有限公司 | Laser ablation catheter and manufacturing method thereof |
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