TW201822699A - EndoscopIC INTUBATION System with MALLEABLE stylet - Google Patents

Abstract

An endoscopic intubation system with malleable stylet is provided and includes a stylet, a camera module with light source, a grip and a power control module. The stylet has a varying elastic portion and a malleable portion. The varying elastic portion has a proximal end and a connecting end, where the rigidity of the varying elastic portion from the proximal end to the connecting end is decremented. The malleable portion is extended from the connecting end and has a distal end. The camera module is connected to the distal end to provide a light source and capture image. The grip is connected to the proximal end. The power control module is electrically connected to the light source module. By using the endoscope of the present invention having a rigidity changeable stylet, and when an excessive force is applied to the grip, the shape of the elastic portion will be changed and thereby reducing the deformation of the distal end. Thus, damages of the tissues can be avoided, and breakage of the stylet can be prevented.

Description

Flexible cannula system

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a cannula system, and more particularly to a flexible cannula system having variable stiffness and capable of bending multiple times without breaking.

Conventional intubation aids use a light wand, a video laryngoscope, and a flexible endoscope. The light source guiding probe uses a slender probe to connect the grip to the high brightness light source module, and installs a power control module in the grip to provide power and control of the light source module through the power control module. Light source brightness. When the slender and smooth probe is inserted into the endotracheal tube, the bendable probe combined with the endotracheal tube is quite suitable for the operation of the endotracheal tube. If the medical staff correctly inserts the endotracheal tube into the airway of the human body, the patient's neck will transmit light. In order to avoid the traditional light source guiding the probe, the damage caused by the intubation process has been solved by many conventional structures. For example, a point stop device that adjusts the position of the light source within the endotracheal tube. However, this device can only block the endotracheal tube and cannot completely fix the endotracheal tube and the probe.

The image laryngoscope uses a blade to connect the gripper and then mounts the lens module in the blade, and installs a power control module in the grip, and provides power of the lens module and brightness of the light source and image output to the grip through the power control module. Connected display device. When the blade extends into the entrance cavity, through the grip end display device, after seeing the glottis, the inner tube of the trachea that has been shaped by the probe is inserted into the vocal connection to the airway, and then the probe and the blade are pulled out. Since the blade size is much larger than the probe and hard for patients with difficult openings, it is necessary to use a soft controllable endoscope to enter the nasal cavity to display the glottal position and the intubation process. When using a flexible endoscope for intubation surgery, the structure is limited to the flexible part of a single hardness, which has the function of bending and shaping. The hardness is not enough to open the tongue or the tissue inside the mouth. It must be combined with the rigid laryngoscope operation. Use alone. Furthermore, when the grip exerts excessive force on the probe, the proximal end of the probe connected to the grip is deformed too much, which makes it impossible to insert the endotracheal tube into the airway, and even the result of the proximal end fracture, that is, the rigid grip Fracture at the junction with the flexible probe. In addition, when the probe is deformed at the distal end of the light source and the image module, the fixed light source generally located at the distal end cannot provide illumination in a specific direction or the lens module cannot provide image output in a specific direction, thereby causing medical personnel to operate. At the time, the advancement of the endotracheal tube is deviated from the direction of the light source irradiation or the image capturing position, which is quite inconvenient. It can be seen that there is a lack of an endoscope or a light source with a multi-directional illumination source for guiding the probe with high safety, good plasticity and not easy to break, so the relevant industry is seeking a solution.

Accordingly, the present invention provides a flexible cannula system that utilizes a special probe structure to make the hardness harder toward the proximal end and softer toward the distal end. When the grip is excessively applied, the elastic portion of the probe will be deformed to reduce the force at the distal end, which not only prevents the distal end from injuring the human tissue, but also prevents the probe from being broken. In addition, the probe can not only achieve the effect of hardness change through the varying wall thickness, but also achieve the purpose of hardness change through different materials of the same wall thickness and multiple sections, and can also utilize the wrinkle under the same wall thickness and material condition. Pleated shapes to achieve variable stiffness. With the hardness changes of these different embodiments, even the combination of wall thickness, material and shape can be effectively prevented from breaking.

One embodiment of the present invention is a flexible cannula system comprising a probe, a light source image module, a grip, and a power control module. The probe includes a variable elastic portion and a flexible portion, and the variable elastic portion includes a proximal end and a connecting end, and the hardness of the elastic portion decreases from the proximal end to the connecting end. Furthermore, the flexible portion extends from the connecting end and the flexible portion has a distal end. In addition, the light source image module is disposed at the far end, and the light source image module provides the light source and the image output to the display device connected to the grip. The grip connects the proximal end of the probe through the joint and is connected to the display device. The power control module is electrically connected to the light source image module.

Thereby, the flexible cannula system of the present invention utilizes the hardness of the probe to produce different changes at different positions to achieve flexibility that is bent but not easily broken. When the grip is excessively applied, the variable elastic portion of the probe will be deformed more and more as it approaches the distal end, and the force at the distal end portion is greatly reduced, thereby not only preventing the distal end from injuring the human tissue, but also preventing the probe. Broken.

According to other embodiments of the foregoing embodiments, the variable elastic portion may be made of metal and have a circular cross section. The wall thickness of the proximal end is greater than the thickness of the wall of the connecting end, and the thickness of the wall of the variable elastic portion decreases from the proximal end to the connecting end. The variable elastic portion may be made of stainless steel, and the flexible portion may be made of aluminum, copper, titanium or steel wire and a plastic hose and have a circular cross section. In addition, the light source image module may include a light emitting diode (LED), a lens module, a circuit board, and a light source control wire. The light emitting diode and the lens module are disposed at the distal end, and the light emitting diode can generate a light source, and the lens module can output an image. The circuit board electrically connects and drives the image sensor of the LED and the lens module, and the fourth segment of the circuit board is disposed in the flexible portion. The light source control wire is electrically connected to the light source image module and the power control module, and the light source control wire is disposed inside the probe. Furthermore, the distal end is provided with at least one opening corresponding to the light emitting diode and the lens module, and the light source and the lens can pass through the opening. The probe can include a probe sheath that can be sleeved on the outer side of the probe, the probe sheath being made of a transparent material. Moreover, the aforementioned probe sheath may be made of tantalum rubber or Teflon. In addition, the power control module includes a power supply and a control component. The power supply supplies power to the light source image module, and the power supply is disposed in the grip. The control member controls the switching and brightening of the light source, and the control member is disposed on the grip. Additionally, the flexible cannula system described above can include an engagement member having a grip engagement portion and a probe engagement portion. Wherein the grip joint is detachably coupled to the grip and the probe joint is coupled to the proximal end.

According to another embodiment of the present invention, a flexible cannula system includes a probe, a light source image module, a grip, and a power control module. The probe has a variable elastic portion and a flexible portion. The variable elastic portion is sequentially connected by a plurality of segment connectors, wherein the first segment connector has a proximal end, and the last segment connector has a connecting end, and the hardness of the segment connectors decreases from the proximal end to the connecting end. Furthermore, the flexible portion extends from the last segment of the connector connection and the flexible portion has a distal end. The light source image module is disposed at the distal end and provides at least one light source. In addition, the grip connects the first segment to the proximal end, and the power control module electrically connects the light source image module and outputs the image to the display device connected to the grip.

According to another embodiment, the flexible cannula mirror of the present invention transmits the variable hardness through the change of the wall thickness, material or shape of the plurality of nozzles, thereby effectively preventing the breakage of the probe.

According to another embodiment of the foregoing embodiment, the variable elastic portion and the flexible portion may be made of metal and have a circular cross section. The thickness of the wall of the proximal end is greater than the thickness of the wall of the connecting end, and the thickness of the wall of the connecting tube decreases from the proximal end to the connecting end. The aforementioned elastic portion may be made of stainless steel, and the flexible portion may be made of aluminum, copper, titanium or steel wire and a plastic hose. Furthermore, the variable elastic portion and the flexible portion may be made of metal and have a circular cross section, and the material or shape of the segments may be different from each other. In addition, the light source image module may include a light emitting diode, a circuit board, and a light source control wire. The light emitting diode is disposed at the distal end, and the light emitting diode can generate a light source. The circuit board is electrically connected and drives the light emitting diode, and the fourth segment of the circuit board is disposed in the flexible portion. The light source control wire is electrically connected to the light source image module and the power control module, and the light source control wire is disposed inside the probe. Furthermore, the distal end is provided with at least one opening corresponding to the light emitting diode, and the light source can pass through the opening. In addition, the foregoing probe may include a probe sheath which is sleeved on the outer side of the probe, and the probe sheath is made of a transparent material. Furthermore, the power control module includes a power supply and a control. The power supply supplies power to the light source image module, and the power supply is disposed in the grip. The control member controls the switching and brightening of the light source, and the control member is disposed on the grip. In addition, the flexible cannula can include an engagement member having a grip engagement portion and a probe engagement portion. Wherein the grip joint is detachably coupled to the grip and the probe joint is coupled to the proximal end. The flexible cannula system can include an outer tube that is sleeved and the outer tube is made of a flexible metal or soft plastic material.

According to still another embodiment of the present invention, a flexible cannula system with a light source guide includes an outer tube, a probe, a light source module, a grip, and a power control module. The outer tube is made of flexible metal or soft plastic material. The probe is disposed in the outer tube, and the probe comprises a variable elastic portion and a flexible portion. The variable elastic portion is sequentially connected by a plurality of segment connectors, wherein the first segment has a proximal end and finally The length of the nozzle has a connecting end, and the hardness of the connecting tube decreases from the proximal end to the connecting end. The flexible portion extends from the connecting end, and the flexible portion has a distal end. Furthermore, the light source module is disposed at the distal end, and the light source module provides a multi-directional light source. The grip is connected to the proximal end. The power control module is electrically connected to the light source module.

According to still another embodiment, the flexible cannula system of the present invention utilizes a flexible metal outer tube or a soft plastic outer tube and a plurality of special structures of the probe itself to make the flexible catheter system under the operation. It is less prone to breakage.

According to the foregoing embodiment, the outer tube and the probe may be in the shape of a circular tube. The thickness, material or shape of the pipe wall of the segment is different from each other.

Please refer to Figures 1 to 5 together. 1 is a schematic view of a flexible cannula system 100 in accordance with an embodiment of the present invention. Fig. 2 is an exploded view of Fig. 1. FIG. 3 is a schematic diagram of the probe 200 and the light source image module 300 of FIG. 1 . FIG. 4 is a schematic view showing the operation of the probe 200 and the joint member 400 of the present invention. FIG. 5 is a schematic diagram of the power control module 600 of FIG. 1 . As shown, the flexible cannula 100 includes a probe 200, a light source image module 300, a joint member 400, a grip 500, a power control module 600, and a display device 700.

The probe 200 includes a variable elastic portion 210, a flexible portion 220, and a probe sheath 230. The variable elastic portion 210 includes a proximal end 212 and a connecting end 214, and the flexible portion 220 includes a distal end 222 and an opening 226. The flexible portion 220 extends from the connecting end 214 and the flexible portion 220 has a distal end 222. Moreover, the hardness of the variable elastic portion 210 is decreased from the proximal end 212 to the connecting end 214. In this embodiment, the effect of the hardness change is achieved by the change of the thickness of the tube wall. The variable elastic portion 210 is made of the same material but not limited to the same material, and the wall thickness of the variable elastic portion 210 is from the proximal end. The 212 to the connection end 214 assumes a thinner and thinner state, and this embodiment utilizes four different wall thicknesses. Of course, the number of segments of the variable elastic portion 210 and the wall thickness of each segment can be varied by the manufacturer depending on the application requirements. Since the wall thickness of the proximal end 212 is thicker, it is less likely to be bent, so that the probe 200 can be prevented from being broken at the junction of the proximal end 212 and the engaging member 400. The thickness of the pipe wall of the connecting end 214 is smaller than the thickness of the pipe wall of the proximal end 212, and the thickness of the thin pipe wall is easy to be bent, and the degree of bending depends on the magnitude of the force received by the connecting end 214, and the greater the force, the degree of bending. The bigger. When the distal end 222 is subjected to excessive force, the flexible portion 220 is bent first, and then the connecting end 214 that connects the variable elastic portion 210 is bent. The interlocking bending allows the connecting end 214 to absorb the force transmitted from the distal end 222 and greatly reduce the force exerted on the distal end 222, thereby preventing the distal end 222 from injuring the human tissue and preventing the probe 200. It is broken from the junction of the connecting end 214 and the flexible portion 220. In addition, the connecting end 214 and the flexible portion 220 are both plastic and semi-rigid tubes, which not only protect the light source image module 300, but also prevent the distal end 222 from being randomly deformed after being touched and unable to control its position and direction. Further, the variable elastic portion 210 has a hollow circular tubular shape, and thus the cross section is also circular. Moreover, both the variable elastic portion 210 and the flexible portion 220 are made of metal capable of withstanding multiple bends, which is very suitable for the operation of medical personnel. In detail, the variable elastic portion 210 may be made of stainless steel, and the flexible portion 220 may be made of aluminum, copper, titanium or steel wire and a plastic hose, so that the variable elastic portion 210 and the flexible portion 220 may be used differently. s material. In addition, the hardness of the connecting end 214 of the variable elastic portion 210 is close to the hardness of the flexible portion 220, and the different materials having different wall thicknesses are used to achieve the same hardness or hardness close to the intersection of the two different materials. When the flexible portion 220 is bent by an external force, the structure of the probe 200 is not easily broken from the intersection of the connecting end 214 and the flexible portion 220. In addition, the opening 226 of the flexible portion 220 is disposed at the distal end 222, and the opening 226 faces the front of the probe 200. The probe sheath 230 is sleeved around the outer side of the probe 200 and covers the outer side of the probe 200. This probe sheath 230 is made of a transparent material. In detail, the probe sheath 230 may be made of tantalum rubber or Teflon, which is a biocompatible smooth material.

The light source image module 300 includes a light emitting diode 310, a lens module 320, a circuit board 330, an image transmission wire 340, and a light source control wire 350. The light-emitting diode 310 and the lens module 320 respectively correspond to the opening 226, and the light-emitting diode 310 and the lens module 320 are both disposed at the distal end 222. Furthermore, the light emitting diode 310 generates a light source 312 that can be illuminated outwardly through the opening 226. It can be seen that the light source image module 300 provides a bright light source 312, so that the medical staff can clearly observe the front position of the flexible portion 220 when the flexible cannula 100 is operated. Of course, the direction of the light source 312 may change with the opening direction of the opening 226 and the movement of the flexible portion 220, for example, the opening 226 may open in a direction toward the side of the tube wall, and is not limited to a single front direction. In addition, the circuit board 330 electrically connects the light emitting diode 310, the lens module 320, and the light source control wire 350, and the circuit of the circuit board 330 can not only drive the light emitting diode 310 to generate the light source 312, but also the lens module 320. The image captured by the image sensing chip is image processed and transmitted to the back end display. In addition, the image transmission wire 340 and the light source control wire 350 are both disposed in the probe 200. The image transmission wire 340 can be used to transmit the image signal captured by the image sensor 320, and the light source controls the signal transmitted by the wire 350. It can then be used to control the degree of switching and brightness of the LED 310. As far as the related circuit details and signal transmission control are well-known technologies, they will not be described again. Furthermore, the wavelength of the light-emitting diode 310 can be adapted to various endoscopes and surgical needs. The LEDs 310 are disposed around the image sensor 320. In detail, the number of the LEDs 310 may be plural. The LEDs 310 may be disposed on the upper, lower, left, and right sides of the image sensor 320. The image quality of the captured image can be made brighter and more uniform.

The joint 400 has a grip joint 410 and a probe joint 420. The grip joint 410 is detachably coupled to the grip 500, and the probe engagement portion 420 is coupled to the proximal end 212 of the resilient portion 210. In detail, the probe joint portion 420 is provided with a probe engagement hole 422 which is circular, and the aperture size of the probe engagement hole 422 is the same as the diameter of the probe 200, so that the probe 200 The probe engaging hole 422 is bored and fixed to the probe joint 420. Under the condition that the wall 212 of the proximal end 212 is thick, it is less likely to be bent, so that the probe 200 can be prevented from being broken at the intersection of the proximal end 212 and the probe joint 420.

The grip 500 can be coupled to the proximal end 212 of the probe 200 through the engagement member 400. The grip 500 includes a fitting portion 510, a grip portion 520, and a lug portion 530. The fitting portion 510 is detachably engaged in the grip joint portion 410 of the joint member 400, and the shape of the fitting portion 510 and the shape of the groove side wall of the grip joint portion 410 correspond to each other. When the fitting portion 510 is engaged with the grip joint portion 410, the side of the grip portion 520 is just in close contact with the outer side wall of the grip joint portion 410 to form a smooth curved surface. The lug portion 530 is used to connect the display module 700. It is worth mentioning that the magnitude of the force of the grip 500 indirectly affects the bending condition of the probe 200 and the direction of illumination of the light source 312 of the light source image module 300. However, the probe 200 of the present invention has a special change in hardness, so that the probe 200 is less likely to be broken when the grip 500 is excessively stressed, and the distal end 222 can be prevented from injuring the human tissue, protecting the light source image module 300, and preventing the distal end. 222 is randomly deformed by being touched.

The power control module 600 includes a power supply 610, a control circuit board 620, and a control unit 630. The power control module 600 is disposed within the grip 520 of the grip 500 and electrically coupled to the light source image module 300 and the display module 700. The power supply 610 can be a general battery and disposed inside the grip 500, and the power supply 610 provides the power of the light source image module 300, the control circuit board 620, and the display module 700. In addition, the control circuit board 620 is connected to the light source image module 300 through the light source control wire 350 and the image transmission wire 340, which can quickly and quickly transmit the light source parameter settings required by the medical personnel to the light emitting diode 310 of the light source image module 300. The required light source 312 is generated, and the image captured by the image sensor 320 of the light source image module 300 can be transmitted to the display module 700 for presentation. Moreover, the control member 630 controls the switch and the light and dark of the light source 312, and the control member 630 is disposed on the grip 500 to facilitate the operation of the medical personnel.

The display module 700 includes a pivoting portion 710, a plurality of buttons 720, and a screen 730. The pivoting portion 710 is pivotally connected to the lug portion 530. These buttons 720 allow medical personnel to freely adjust the picture quality and display effect of the picture 730. As far as the related circuit details and signal transmission control are well-known technologies, they will not be described again.

Please refer to Figure 2 and Figures 6A~6C together. FIG. 6A is a schematic view showing a variable elastic portion 210 ′ according to another embodiment of the present invention. FIG. 6B is a schematic view showing a variable elastic portion 210 ′′ according to still another embodiment of the present invention. FIG. 6C is a schematic view showing the variable elastic portion 210 ′′′ according to still another embodiment of the present invention. As shown, the resilient portion 210' includes a first length of stubs 242, a second length of stubs 244, a third length of stubs 246, and a fourth length of stubs 248. The first section of the tube 242 to the fourth stage of the tube 248 are sequentially connected and the hardness is decreased. The elastic portion 210' is made of different materials of the same wall thickness and a plurality of stages to achieve the purpose of hardness change. In detail, the hardness of the material of the first section of the connecting tube 242 is greater than the hardness of the material of the second section of the connecting tube 244, the hardness of the material of the second section of the connecting tube 244 is greater than the hardness of the material of the third section of the connecting tube 246, and the hardness of the material of the third section of the connecting tube 246 is greater than The four sections take over the hardness of the material 248, and the four sections have the same wall thickness. Furthermore, the variable elastic portion 210'' includes a plurality of nozzles 202, a first segment connector 202a, a second segment connector 202b, a third segment connector 202c, a fourth segment connector 202d, and a sheath 230. The first-stage nozzles 202a to the fourth-stage nozzles 202d are sequentially connected, and the outer diameters of the section-connected tubes are successively decreased and the structure is the same as that of the conventional telescopic rods. In particular, the variable elastic portion 210'' is a variable hardness which is achieved by using different diameters of the respective segments under the condition of a plurality of end-joint tubes 202 having a plurality of lengths of telescopic rods. In addition, the variable elastic portion 210 ′′′ includes a first segment of the pipe 262 , a second segment of the pipe 264 , a third segment of the pipe 266 and a fourth segment of the pipe 268 of different wall thicknesses, the outer layer of which is covered with an outer pipe 202 , The tube 202 is made of a flexible material and has a uniform wall thickness and material consistency, and the variable elastic portion 210''' utilizes a plurality of segments and different wall thicknesses to achieve a hardness change effect. It can be seen from the above embodiments that when the variable elastic portions 210, 210', 210", and 210"' are bent by the force by the change of the hardness, the force is first bent and the buffer force is applied, and then the force is buffered. Effectively preventing the elastic portions 210, 210', 210", 210"" from breaking at respective respective proximal ends 212 when bent.

Please refer to Figure 2 and Figure 7 together. FIG. 7 is a schematic view showing the operation of the flexible cannula 100 of FIG. 1 . When the probe 200 is inserted into the airway together with the endotracheal tube 900, the light source image module 300 can illuminate the front and capture the image, and the medical personnel can respectively pass the button 720 of the display module 700 and the control unit 630 of the power control module 600 respectively. The display settings and light source parameter settings required for control adjustment can safely, conveniently and quickly complete the operation of the tracheal intubation.

FIG. 8 is a schematic diagram of a light source guided flexible cannula 910 according to an embodiment of the present invention. FIG. 9 is a schematic diagram showing the operation of the flexible light source guiding cannula system 910 of FIG. 8. When the light source guiding probe 920 penetrates into the air passage together with the endotracheal tube 900, the upper light source 950a and the front light source 950b of the light source module 950 can respectively illuminate the upper side and the front side. Using the light source to guide the button 940 on the grip 930 of the probe to adjust the brightness of the light source, the operation of the endotracheal tube can be done safely, conveniently and quickly.

As can be seen from the above embodiments, the present invention has the following advantages: First, the special probe structure is used to make the hardness closer to the proximal end harder, and the closer to the distal end, the softer. When the grip is excessively applied, the elastic portion of the probe will be deformed to reduce the force at the distal end, which not only prevents the distal end from injuring the human tissue, but also prevents the probe from being broken. Secondly, the probe can not only achieve the effect of hardness change through the varying wall thickness, but also achieve the purpose of hardness change through different materials of the same wall thickness and multiple sections, and can also be utilized under the same wall thickness and material conditions. Multiple segments of different shapes to achieve variable stiffness. With the hardness changes of these different embodiments, even the combination of wall thickness, material and shape can be effectively prevented from breaking. Third, the flexible cannula system is less prone to break under the operation of the surgery by a flexible metal outer tube or a plastic hose plus a plurality of special structures of the probe itself.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Flexible cannula system

200‧‧‧Image output probe

202‧‧‧Multiple takeover

202a, 242, 262‧‧‧ first takeover

202b, 244, 264‧‧‧second takeover

202c, 246, 266‧‧‧ third takeover

The second paragraph of 202d, 248, 268‧‧

210, 210'‧‧‧Variable elastic parts

210'', 210'''‧‧‧Variable Elastic Department

212‧‧‧ proximal end

214‧‧‧Connected end

220‧‧‧Flexible

222‧‧‧ distal

226‧‧‧ openings

230‧‧‧ Probe sheath

300‧‧‧Light source image module

310‧‧‧Lighting diode

312‧‧‧Light source

320‧‧‧Lens module

330‧‧‧Circuit board

340‧‧‧Image transmission wire

350‧‧‧Light source control wire

400‧‧‧Connecting parts

410‧‧‧ grip joint

420‧‧‧ Probe joint

422‧‧‧Belt joint hole

500‧‧‧ grip

510‧‧‧Mate

520‧‧‧ grip

530‧‧ ‧ Ears

600‧‧‧Power Control Module

610‧‧‧Power supply

620‧‧‧Control circuit board

630‧‧‧Controls

700‧‧‧ display module

710‧‧‧ pivotal department

720‧‧‧ button

730‧‧‧ screen

900‧‧‧tracheal tube

910‧‧‧Flexible light source guiding cannula system

920‧‧‧Light source guiding probe

930‧‧‧Light source guiding probe grip

940‧‧‧Light source guide bar grip button

950‧‧‧Light source module

950a‧‧‧Upper light source

950b‧‧‧ front light source

1 is a schematic view of a flexible cannula system according to an embodiment of the present invention. Fig. 2 is an exploded view of Fig. 1. FIG. 3 is a schematic diagram of the probe and the light source image module of FIG. 1 . Figure 4 is a schematic view showing the operation of the probe and the engaging member of the present invention. FIG. 5 is a schematic diagram showing the power control module of FIG. 1. 6A is a schematic view showing an elastic portion of another embodiment of the present invention. FIG. 6B is a schematic view showing the elastic portion of still another embodiment of the present invention. FIG. 6C is a schematic view showing the elastic portion of still another embodiment of the present invention. Figure 7 is a schematic view showing the operation of the flexible cannula system of Figure 1. FIG. 8 is a schematic view showing a flexible light source guiding cannula system according to an embodiment of the present invention. FIG. 9 is a schematic view showing the operation of the flexible light source guiding cannula of FIG. 8.

Claims (10)

A flexible cannula system includes: a probe having a variable elastic portion and a flexible portion, wherein the variable elastic portion has a proximal end and a connecting end, and the hardness of the variable elastic portion is The flexible end portion is extended from the connecting end, and the flexible portion extends from the connecting end, and the flexible portion has a distal end; a light source image module is disposed at the distal end, and the light source image module provides at least one a light source and a lens module; a grip connecting the proximal end; and a power control module electrically connecting the light source image module. The flexible cannula system of claim 1, wherein the variable elastic portion is made of metal and has a circular cross section, and the thickness of the proximal end wall is greater than the thickness of the tube wall of the connecting end, and The wall thickness of the variable elastic portion decreases from the proximal end to the connecting end. The flexible cannula system of claim 2, wherein the variable elastic portion is made of stainless steel, and the flexible portion is made of aluminum, copper, titanium or steel wire and a plastic hose. . The flexible cannula system of claim 1, wherein the probe further comprises a probe sheath sleeved on an outer side of the probe, and the probe sheath is made of rubber or Made of Teflon. A flexible cannula includes: a probe having a variable elastic portion and a flexible portion, wherein the variable elastic portion is sequentially connected by a plurality of segments, wherein the first segment has a proximal end, the last length of the nozzle has a connecting end, and the hardness of the plurality of connecting tubes is respectively decreased from the proximal end to the connecting end, the flexible portion extends from the connecting end, and the flexible portion has a distal end; a light source image module is disposed at the distal end, the light source image module provides at least one light source and a lens module; a grip connecting the proximal end; and a power control module electrically connecting the light source image module . The flexible cannula system of claim 5, wherein the variable elastic portion is made of metal and has a circular cross section, and the thickness of the proximal end wall is greater than the thickness of the tube wall of the connecting end, and The wall thickness of the segment nozzles decreases from the proximal end to the connection end. The flexible cannula system of claim 5, wherein the variable elastic portion is made of metal and has a circular cross section, and the material or shape of the plurality of nozzles is different from each other. The flexible cannula system of claim 5, further comprising: an engaging member having a grip joint and a probe joint, the grip joint being detachably coupled to the grip And the probe joint connects the proximal end. The flexible cannula system of claim 5, further comprising an outer tube that is sleeved and made of a flexible metal material or a plastic hose. A light source guided flexible cannula system includes: a probe having a variable elastic portion and a flexible portion, wherein the variable elastic portion has a proximal end and a connecting end, the variable elastic portion The flexible portion is decremented from the proximal end to the connecting end, and the flexible portion extends from the connecting end, and the flexible portion has a distal end; a light source module is disposed at the distal end, and the light source module provides at least One or more sets of different direction light sources; a grip connecting the proximal end; and a power control module electrically connecting the light source module.