TWM520876U - Surgical otoscope and apparatus thereof - Google Patents

Description

Surgical otoscope and device thereof

The present invention relates to an otoscope and a device thereof, and more particularly to a surgical otoscope and a device thereof which can avoid interference between an instrument and an otoscope and are convenient for a user to operate.

In recent years, the diagnosis of medical instruments and equipment has developed quite rapidly. Some of them, such as the otolaryngology clinic, were developed by medical staff using naked eyes or using otoscopy to develop the images that can be taken from the microscope today and can be stored on a computer. As medical records. The structure of the general otoscope may include a lens tube, a lens group disposed inside the lens tube, and an illumination optical module, wherein the lens group can be connected to the image capturing device, and the illumination optical module has a light-emitting element, and the user can Clearly observe the condition inside the ear through the light source and image. When the otoscope is used, the hose is inserted into the ear to be detected, and the image in the ear is captured by the illumination device and the image picker, and then the captured image is transmitted to the signal processor, and finally After the image signal processing, the captured image is output on the computer screen.

There is a traditional otoscope that can be wired to a large display Up to the display screen, although the large display has the advantages of large screen, easy to observe the screen, etc., it also has the disadvantages of being difficult to carry and occupy space. Therefore, when the medical staff conducts a visual inspection, the patient must be restricted from reaching the display to the configuration site for diagnosis. Instead of carrying the medical instruments of the endoscope to the patient's office for medical examination, if you have to go to a foreign country for special circumstances, such as going to a disaster area or an infected area, you must use manpower and resources to carry these medical instruments, causing movement. Inconvenience, and the handling time is too long and it is easy to delay the patient's visit timing, and the medical instrument also has the risk of collision damage during transportation.

In order to solve the above problems, another conventional otoscope is designed to improve the inconvenience of a large-diagnostic otoscope device. The display is fixed on the otoscope so as to be convenient for the user to observe, but there are still some problems in use. For example, when the otoscope is used with the instrument, the medical staff can easily be blocked by the device while watching the display. Therefore, during the operation of the otoscope, the medical staff must achieve the best viewing angle by moving his or her body or head position, which is quite inconvenient in use.

Another conventional otoscope has a special instrument guide hole which is disposed on the edge of the wall of the otoscope, and the guide hole of the device has a certain angle with the edge of the tube wall, so that the medical staff can use the otoscope The ear is not blocked by the instrument when viewing the ear. However, such an otoscope must be used together with a device having a bendable shape, so that the original linear or rigid instrument cannot be used, and the curved shape of the instrument is difficult to operate, which increases the difficulty of the operation. In addition, when the otoscope is operated, the ocular lens of the otoscope is too close to the instrument to interfere with the device or hit the operator's head, which is easy to reduce. The accuracy of the surgery increases the risk of surgical failure.

Still another conventional endoscope has a special mirror tube having a working channel, and the working channel is linear, allowing the original linear shaped instrument to be inserted therethrough. However, when the device is fully extended into the working channel, the degree of freedom of operation of the instrument will be limited by the inner wall of the lens tube, which will also increase the difficulty of surgery.

It can be seen from the above that there is a lack of an otoscope that is simple and light in operation, can be used with the original linear shape or hard instrument operation, and has sufficient freedom of operation and the device does not block the field of view. Therefore, the relevant operators are seeking to solve it. The way.

Therefore, the present invention provides a surgical otoscope and a device thereof, which utilizes bending of a lens tube to change a direction of an optical path of an imaging optical module, and at the same time, a distance between the instrument and the proximal end portion, so that the device does not block the visual field, and Increase the convenience and safety of surgery. In addition, through the catheter with special guide hole, the user can quickly put the otoscope and the instrument into the ear canal, and the device of the present invention can not only avoid the otoscope and the instrument without affecting the degree of freedom of operation. Mutual influence and interference, it is also possible to use the original linear shape of the instrument without the need to design a curved instrument to match the otoscope. In addition, under the condition that the far-end optical path direction and the proximal optical path direction are parallel to each other, the device structure can make the user's viewing direction the same as the operation direction of the instrument, can avoid the azimuth disorder caused by the inconsistent direction, and can make the operation The error rate or failure rate is greatly reduced.

One embodiment of the present invention is a surgical otoscope comprising a lens tube and an imaging optical module. A hollow channel is formed in the lens tube, and the lens tube includes a distal end portion and a proximal end portion. The distal end has a distal optical path direction, the proximal end has a proximal optical path direction, and the distal optical path direction intersects the proximal optical path direction at an angle. The imaging optical module is disposed in the hollow channel and connects the distal end portion and the proximal end portion. The imaging optical module is configured to transmit an image from the distal end to the proximal end.

Therefore, the surgical otoscope of the present invention utilizes the bending of the lens tube to change the optical path direction of the imaging optical module, and at the same time, the distance between the instrument and the proximal end portion, so that the device does not block the visual field and increases the convenience of surgery. Sex and safety.

Other embodiments in accordance with the foregoing embodiments are as follows: the aforementioned angle may be greater than 30 degrees and less than 150 degrees. Moreover, the aforementioned angle may be 90 degrees, 45 degrees or 135 degrees. In addition, the aforementioned lens tube may be circular, elliptical or square. The imaging optical module can be an optical fiber, an aperture, an objective lens group, a lens, a relay lens, a mirror, a hologram, a holographic optical element, a diffractive optical element or an eyepiece group. Furthermore, the surgical otoscope can include an illumination optical module disposed in the hollow channel, and the illumination optical module can be used to introduce an external light source to the distal end. Moreover, the illumination optical module can be a lens, a light guide or an optical fiber. In addition, the surgical otoscope may include an adapter connected to the proximal end, and the adapter is used to transmit images to an external device. The external device can be a display, an image capture device, a camera, a camera, a smart phone, a television, and a head mounted display.

Another embodiment of the present invention is a surgical otoscope comprising a lens tube and an imaging optical module. The lens tube includes a distal end portion, a middle end portion and a proximal end portion. A hollow channel is formed in the lens tube, the distal end portion has a distal optical path direction, the middle end portion has a middle end optical path direction, and the proximal end has a proximal optical path direction. The far end optical path direction intersects the middle end optical path direction by a first angle, and the middle end optical path direction intersects the proximal end optical path direction by a second angle. The imaging optical module is disposed in the hollow channel and connects the distal end portion and the proximal end portion. The imaging optical module is configured to transmit an image from the distal end portion to the proximal end portion.

Thereby, the surgical otoscope of the present invention allows the user to view the same direction as the operation direction of the instrument under the condition that the direction of the distal optical path and the direction of the proximal optical path are parallel to each other, thereby avoiding the azimuth disorder caused by the inconsistent direction. Moreover, the error rate or failure rate of the operation can be greatly reduced.

Other embodiments in accordance with the foregoing embodiments are as follows: the first angle may be greater than 30 degrees and less than 150 degrees, and the second angle is greater than 0 degrees and less than 180 degrees. In addition, the aforementioned first angle may be 90 degrees, and the second angle is also 90 degrees. Even the aforementioned distal optical path direction and the proximal optical path direction may be parallel to each other. Moreover, the aforementioned lens tube may be circular, elliptical or square. Furthermore, the imaging optical module can be an optical fiber, an aperture, an objective lens, a lens, a relay, a mirror, a hologram, a holographic optical component, a diffractive optical component or an eyepiece. group. In addition, the surgical otoscope may include an illumination optical module that is disposed in the hollow channel, and the illumination optical module is configured to introduce an external light source to the distal end. Moreover, the illumination optical module can be a lens, a light guide or an optical fiber. In addition, the aforementioned surgery The otoscope can include an adapter that connects to the proximal end and that is used to transmit images to an external device. The external device may be a display, an image capture device, a camera, a camera, a smart phone, a television or a head mounted display.

Yet another embodiment of the present invention is an apparatus for use in the aforementioned surgical otoscope, comprising the aforementioned surgical otoscope, catheter, and instrument. The catheter has a guide hole, and the instrument can be inserted through the guide hole, so the instrument can be limited to the guide hole. The surgical otoscope can be inserted through the guide hole to limit the surgical otoscope to the guide hole.

Therefore, the surgical otoscope device of the present invention can easily insert the otoscope and the instrument into the ear canal through a catheter with a special guide hole, and the present invention can be operated without affecting the degree of freedom of operation. The device not only avoids the interaction and interference between the otoscope and the instrument, but also uses the original linear shape of the instrument without the need to additionally design a curved instrument to match the otoscope.

According to other embodiments of the foregoing embodiments, the device for the surgical otoscope described above can be used for placement in an ear canal for surgery, wherein the catheter is conical and the outer diameter of the catheter conforms to the inner diameter of the ear canal.

100‧‧‧Surgical otoscope device

200‧‧‧Surgical otoscope

202‧‧‧ imaging beam

210‧‧‧Mirror tube

212‧‧‧ distal end

213‧‧‧ distal hole

214‧‧‧ mid-end

215‧‧‧External light source introduction hole

216‧‧‧ Near end

217‧‧‧ proximal hole

250‧‧‧Lighting optical module

260‧‧‧Adapter

270‧‧‧Image capture device

280‧‧‧External display

290‧‧‧ head mounted display

300‧‧‧ catheter

310‧‧‧ Guide hole

400‧‧‧ instruments

Θ1‧‧‧ first angle

Θ2‧‧‧second angle

220‧‧‧ imaging optical module

223‧‧‧ far end optical path

225‧‧‧Neutral light path

227‧‧‧ Near-end optical path

500‧‧‧ catheter

501‧‧‧Transformation ditch

510‧‧‧ Guide hole

600‧‧‧ catheter

601‧‧‧ Positioning frame

610‧‧‧guide hole

700‧‧‧Mobile phones

FIG. 1 is a schematic view of a device for a surgical otoscope according to an embodiment of the present invention.

Fig. 2 is a schematic view showing the structure of the surgical otoscope of Fig. 1.

3A to 3C are schematic views showing three types of catheters of the present invention.

4A to 4H are schematic views showing surgical otoscopes of other embodiments of the present invention.

Figure 5A is a schematic diagram showing the transmission of images to an external display in a wired connection.

FIG. 5B is a schematic diagram showing connection transmission with a mobile phone.

Figure 6 is a schematic diagram showing the transmission of images to a head mounted display in a wireless connection.

Fig. 7 is a schematic view showing the state of use of the surgical otoscope of the present invention.

Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, it should be understood that these practical details are not intended to limit the novel. That is to say, in some embodiments of the present invention, these practical details are not necessary. In addition, some of the conventional structures and elements are illustrated in the drawings in a simplified schematic manner, and the repeated elements may be represented by the same reference numerals.

Please refer to Figures 1~3A together. FIG. 1 is a schematic view of a surgical otoscope device 100 according to an embodiment of the present invention. FIG. 2 is a schematic view showing the structure of the surgical otoscope 200 of FIG. 1. A schematic view of the catheter 300 of Figure 1 is depicted in Figure 3A. As shown, the surgical otoscope device 100 includes a surgical otoscope 200, a catheter 300, and an instrument 400.

The surgical otoscope 200 includes a lens tube 210, an imaging optical module 220, and an illumination optical module 250. Where the mirror tube 210 is divided into a distal end portion 212, the middle end portion 214 and the proximal end portion 216, the distal end portion 212, the middle end portion 214 and the proximal end portion 216 can be integrally formed, and a hollow channel is formed in the lens tube 210. The mirror tube 210 can be circular, elliptical or square. The distal end portion 212 extends in a direction parallel to the extending direction of the proximal end portion 216, and the middle end portion 214 vertically connects the distal end portion 212 and the proximal end portion 216. Furthermore, the lens tube 210 has three holes, which are a distal hole 213, an external light source introduction hole 215, and a proximal hole 217, respectively. The distal aperture 213 is located at the forward end of the distal end portion 212 and the imaging beam 202 can enter the interior of the surgical otoscope 200 via the distal aperture 213. The external light source introduction hole 215 is located at the intersection of the middle end portion 214 and the proximal end portion 216. As for the proximal aperture 217, which is located at the proximal end 216 near the end of the user's eye, the imaging beam 202 can pass through the proximal aperture 217 into the user's eye. In other words, the image entering the distal aperture 213 is transmitted to the proximal aperture 217. In addition, distal portion 212 has a distal optical path direction 223, central end portion 214 has a mid-end optical path direction 225, and proximal end portion 216 has a proximal optical path direction 227. The far end optical path direction 223 intersects the middle end optical path direction 225 by a first angle θ1, and the middle end optical path direction 225 and the proximal optical path direction 227 intersect a second angle θ2. In detail, the first angle θ1 makes the far end optical path direction 223 different from the middle end optical path direction 225, and the first angle θ1 may be greater than 30 degrees and less than 150 degrees, and the first angle θ1 of the embodiment is 90 degrees. The second angle θ2 makes the middle end optical path direction 225 different from the near end optical path direction 227, and the second angle θ2 may be greater than 0 degrees and less than 180 degrees, and the second angle θ2 of the embodiment is 90 degrees. It can be seen from the above structure that when the first angle θ1 and the second angle θ2 are both 90 degrees and the far end optical path direction 223, the middle end optical path direction 225, and the near end optical path side When the directions 227 are all on the same vertical plane, the distal optical path direction 223 and the proximal optical path direction 227 are parallel to each other. When the user operates the surgical otoscope 200 and the instrument 400, the user's viewing direction and the operation of the instrument 400 are performed. The same direction, which avoids the azimuth disorder caused by the inconsistent direction, and can greatly reduce the error rate or failure rate of the operation.

In addition, the imaging optical module 220 is disposed in the lens tube 210 and disposed in the hollow channel, and the imaging optical module 220 corresponds to the shape of the lens tube 210. The imaging optics module 220 connects the distal end portion 212 and the proximal end portion 216 for transmitting an image from the distal end portion 212 to the proximal end portion 216. The proximal portion 216 has a distance from the instrument 400 that allows the instrument 400 to be effectively separated from the surgical otoscope 200 to avoid mutual influence and interference, and the instrument 400 does not block the field of view, thereby increasing the convenience and safety of the procedure. Furthermore, the imaging optical module 220 can be an optical fiber, an aperture, an objective lens group, a lens, a relay Len, a mirror, a hologram, and a holographic optical element. HOE), a Diffractive Optical Element (DOE) or a group of eyepieces. In addition, the above various forms of imaging optical technology can be matched with each other, and the shapes and structures of these optical elements are well-known techniques, and thus will not be described again. In addition, the illumination optical module 250 is disposed in the hollow channel, and the illumination optical module 250 can be used to introduce an external light source to the distal end portion 212. The illumination optical module 250 can be a lens group, a light guide or an optical fiber. The illumination optical module 250 corresponds to the distal end hole 213 and a portion is disposed at the distal end portion 212. Furthermore, the illumination optics module 250 can generate a light source that can be illuminated outwardly through the distal aperture 213. by It can be seen that the illumination optical module 250 provides a bright light source, so that when the surgical otoscope 200 is operated, the front position of the distal end portion 212 can be clearly observed. The illumination optics module 250 is disposed within the lens tube 210 and can be controlled to adjust the degree of brightness or brightness. Also. As far as the related optical component structure, circuit details and signal transmission control are known, they will not be described again.

The catheter 300 has a guide hole 310. The guiding hole 310 is circular, which is convenient for the user to quickly put the surgical otoscope 200 and the instrument 400 into the ear canal, and the distal end portion 212 of the lens tube 210 of the surgical otoscope 200 can be inserted through the circle. The shaped guide hole 310 limits the surgical otoscope 200 from being displaced by the guide hole 310. In addition, the front end of the catheter 300 is sized to conform to the size of a common human ear hole, and has a tapered appearance. The outer side of the ear hole can be engaged during the operation to facilitate positioning and guiding of the surgical otoscope 200 and the instrument 400.

The instrument 400 can be inserted through the guide hole 310 and the instrument 400 can be displaced by the guide hole 310. In the present embodiment, the surgical otoscope device 100 is passed through the catheter 300 having the guide hole 310, and the surgical otoscope 200 and the instrument 400 of the special shape are used in combination to perform the operation without affecting the degree of freedom of operation. The mutual influence and interference of the surgical otoscope 200 and the instrument 400 are avoided, and the original linear shaped instrument 400 can be used without the need to additionally design a curved instrument to fit the surgical otoscope 200. The shape and configuration of the device 400 are well known and will not be described again.

In addition, the catheter 500 of FIG. 3B may be provided with a deformation groove 501 in the axial direction for slightly expanding or reducing the guide hole during operation. 510, not only meets a variety of placement devices, but also more suitable for the user's ear canal.

As for the catheter 600 of FIG. 3C, a U-shaped positioning frame 601 can be formed inside the guiding hole 610 for positioning the internal instrument hook, thereby liberating one of the operators' arms.

4A through 4H are schematic views of a surgical otoscope 200 of another embodiment of the present invention. 4A and 4B are two-stage surgical otoscopes 200 having a first angle θ1. The 4Cth to 4thth drawings are three-stage surgical otoscopes 200 having a first angle θ1 and a second angle θ2. As can be seen from the figure, by different angles of the first angle θ1 and the second angle θ2, the number of different turning times is matched, and the appropriate external light source introduction hole 215 is drawn together, thereby designing various operations. The otoscope 200 is used, wherein the first angle θ1 or the second angle θ2 may be 90 degrees, 45 degrees, 135 degrees, or other angles. These structures allow the instrument 400 to be spaced from the proximal portion 216 so that the instrument 400 does not block the field of view, and the interaction and interference between the surgical otoscope 200 and the instrument 400 can be greatly reduced, and the convenience of surgery can be increased. safety. 4G and 4F are schematic diagrams of three-dimensional transitions of the first angle θ1 and the second angle θ2 in different planes.

Please refer to both Figure 5A and Figure 6. FIG. 5A is a schematic diagram showing the transmission of images to the external display 280 in a wired connection. FIG. 6 is a schematic diagram showing the transmission of images to the head mounted display 290 in a wireless connection. In addition to being able to view the surgical site by additionally attaching it to one of the proximal end portions 216 as in the second embodiment, in another preferred embodiment, the image can be transmitted. Send it to an external device for viewing to improve convenience. In Fig. 5A, the proximal end portion 216 of the surgical otoscope 200 is provided with an adapter 260 that is passed through the adapter 260 to allow the proximal portion 216 to be coupled to an external device. The external device is an image capture device 270, which can transmit the captured image to the external display 280 through the transmission line to view the image of the operation site, with application changes. In the sixth figure, a more stereoscopic and clear image can be obtained by using the head mounted display 290, and the wireless transmission is applied to the surgical operation to make the user more convenient. In addition, since the head-mounted display 290 has the characteristics of being fluoroscopy, in addition to observing the image of the operation site, it is also possible to simultaneously view a large area around the operation site, which is convenient for use. Of course, the external device can be an image capture device 270, an external display 280, or a head mounted display 290, and can also display images such as a camera, a camera, a smart phone, or a television. s installation.

In addition, in FIG. 5B, a schematic diagram of connection transmission with a mobile phone 700 is illustrated. The surgical otoscope device 100 can be disposed outside the lens of the mobile phone 700 with a simple switching device, so that the mobile phone can be used for image recording and analysis. The delivery operation also utilizes the surgical otoscope device 100 to avoid the problem of interference with the handset 700 without the model.

Fig. 7 is a schematic view showing the state of use of the surgical otoscope 200 of the present invention. In use, after the lens tube 210 is placed in the patient's ear, the instrument 400 can be passed through the guide hole 310 of the catheter 300 to perform the foreign matter grasping action. The device 400 can also be replaced by a suction device, a guiding channel or other therapeutic device depending on the actual situation, and can have various application modes.

It can be seen from the above embodiments that the present invention has the following advantages: First, the bending of the lens tube is used to change the optical path direction of the imaging optical module, and the distance between the instrument and the proximal end portion is so that the device does not block the visual field, and Increase the convenience and safety of surgery. Secondly, through the catheter with special guide hole, the user can quickly put the otoscope and the instrument into the ear canal, which not only has sufficient freedom of operation, but also avoids the mutual influence and interference between the otoscope and the instrument. At the same time, the original linear shape of the instrument can be used without the need to additionally design a curved instrument to match the otoscope.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any one skilled in the art can make various changes and retouchings 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.

200‧‧‧Surgical otoscope

202‧‧‧ imaging beam

210‧‧‧Mirror tube

212‧‧‧ distal end

213‧‧‧ distal hole

250‧‧‧Lighting optical module

Θ1‧‧‧ first angle

Θ2‧‧‧second angle

214‧‧‧ mid-end

215‧‧‧External light source introduction hole

216‧‧‧ Near end

217‧‧‧ proximal hole

220‧‧‧ imaging optical module

223‧‧‧ far end optical path

225‧‧‧Neutral light path

227‧‧‧ Near-end optical path

Claims (23)

A surgical otoscope comprises: a lens tube comprising a distal end portion and a proximal end portion, wherein the lens tube defines a hollow channel having a distal optical path direction, the proximal end portion having a proximal end The direction of the optical path, the direction of the distal optical path intersecting the direction of the optical path of the proximal end; and an imaging optical module disposed in the hollow channel and connecting the distal end portion and the proximal end portion, the imaging optical module An image is transmitted from the distal end to the proximal end. The surgical otoscope of claim 1, wherein the angle is greater than 30 degrees and less than 150 degrees. The surgical otoscope of claim 2, wherein the angle is 90 degrees, 45 degrees or 135 degrees. The surgical otoscope of claim 1, wherein the lens tube is circular, elliptical or square. The surgical otoscope according to claim 1, wherein the imaging optical module has an optical fiber, an aperture, an objective lens group, a lens, a relay lens, a mirror, a cymbal, a full Like an optical element, a diffractive optical element or an eyepiece set. Surgical ear as described in claim 1 The mirror further includes: an illumination optical module disposed in the hollow channel, the illumination optical module for introducing an external light source to the distal end portion. The surgical otoscope of claim 6, wherein the illumination optical module is a lens, a light guide or an optical fiber. The surgical otoscope according to claim 1, further comprising: an adaptor connected to the proximal end, the adaptor for transmitting the image to an external device. The surgical otoscope of claim 8, wherein the external device is a display, an image capture device, a camera, a camera, a smart phone, a television or a head mounted display. A surgical otoscope comprises: a lens tube comprising a distal end portion, a middle end portion and a proximal end portion, wherein the lens tube defines a hollow channel having a distal optical path direction, wherein the distal end portion has a distal optical path direction The end portion has a middle end optical path direction, the near end portion has a proximal optical path direction, the far end optical path direction intersects the middle end optical path direction by a first angle, and the middle end optical path direction intersects the proximal optical path direction a second angle; and an imaging optical module disposed in the hollow channel and connecting the distal end portion and the proximal end portion, the imaging optical module for using an image from the distal end portion Transfer to the near end. The surgical otoscope of claim 10, wherein the first angle is greater than 30 degrees and less than 150 degrees, and the second angle is greater than 0 degrees and less than 180 degrees. The surgical otoscope of claim 11, wherein the first angle is 90 degrees and the second angle is 90 degrees. The surgical otoscope of claim 12, wherein the distal optical path direction and the proximal optical path direction are parallel to each other. The surgical otoscope of claim 10, wherein the lens tube is circular, elliptical or square. The surgical otoscope according to claim 10, wherein the imaging optical module has an optical fiber, an aperture, an objective lens group, a lens, a relay mirror, a mirror, a cymbal, a full Like an optical element, a diffractive optical element or an eyepiece set. The surgical otoscope according to claim 10, further comprising: an illumination optical module disposed in the hollow channel, the illumination optical module for introducing an external light source to the distal end. The surgical otoscope of claim 16, wherein the illumination optical module is a lens, a light guide or an optical fiber. The surgical otoscope according to claim 11, further comprising: an adaptor connected to the proximal end, the adaptor for transmitting the image to an external device. The surgical otoscope of claim 18, wherein the external device is a display, an image capture device, a camera, a camera, a smart phone, a television or a head mounted display. An apparatus for use in a surgical otoscope according to claim 1 , comprising: a catheter having a guide hole; and a device inserted through the guide hole, the instrument being limited to the guide hole; wherein the surgical ear The mirror tube of the mirror is inserted through the guide hole, so that the surgical otoscope is limited to the guide hole. The device for surgical otoscope according to claim 20, wherein the device is placed in an ear canal for performing surgery, wherein the catheter has a conical shape, and an outer diameter of the catheter conforms to an inner diameter of the ear canal. The device for surgical otoscope according to claim 21, wherein the catheter has a deformation groove in the axial direction for the guide hole to slightly expand or contract to fit the ear canal of the user. The device for surgical otoscope according to claim 21, wherein the catheter can be formed with a positioning frame inside the guiding hole for positioning the internal instrument or the lens tube hook.