CN219397173U

CN219397173U - Photothermal therapy endoscope probe

Info

Publication number: CN219397173U
Application number: CN202320169683.8U
Authority: CN
Inventors: 苗彩霞
Original assignee: Qingdao Leishi Optoelectronics Technology Co ltd
Current assignee: Qingdao Leishi Optoelectronics Technology Co ltd
Priority date: 2023-02-02
Filing date: 2023-02-02
Publication date: 2023-07-25
Anticipated expiration: 2033-02-02

Abstract

The utility model belongs to the technical field of medical equipment and specifically relates to a phototherapy endoscope probe, it includes first probe and second probe, first probe light-emitting end is connected with the second probe light inlet end, and first probe has first light-emitting surface towards one side of second probe, first light-emitting surface is located the second probe light inlet end outside, the week side of second probe is the second light-emitting surface, first probe is connected with first light guide portion, first light guide portion light-emitting end is located first probe, it is corresponding with first probe light-emitting end, be equipped with second light guide portion in the second probe, second light guide portion is used for the light conduction that will get into the second probe to the second light-emitting surface. The application can treat cervical os and cervical canal simultaneously by photothermal therapy.

Description

Photothermal therapy endoscope probe

Technical Field

The application relates to the technical field of medical equipment, in particular to a photothermal therapy endoscope probe.

Background

Cervical cancer is one of the most common carcinomas in women, not only accounting for the first place among female genital carcinoma, but also among the various malignant tumors in women. With the continued advancement of photosensitizer and fiber technology, the advantages of using phototherapy to treat cervical cancer are also becoming evident. The photothermal therapy for treating cervical cancer has the advantages that the cervical cancer is not physically damaged by the traditional treatment method, the cervical structure is not greatly damaged, the function of the cervical can be completely preserved, the pain of a patient is reduced, and the cervical cancer is less easy to relapse compared with the traditional method.

When using photothermal therapy to treat, the basic principle is that the laser can generate heat action on biological tissue when the laser irradiates the biological tissue, so that the temperature of tumor tissue is raised to the effective treatment temperature and maintained for a certain time, and the treatment purpose of not only enabling tumor cells to die but also not damaging the normal tissue is achieved by utilizing the difference of the temperature tolerance capability of normal tissue and tumor cells. Cervical cancer (cervical cancer) usually occurs at the cervical orifice and the cervical canal, and due to the physiological size difference of the cervical orifice and the cervical canal, the traditional method is difficult to realize that the cervical orifice can be irradiated and the cervical canal can be irradiated by using one probe, so that the probe needs to be replaced in the treatment process, the cost of medical equipment is increased, the treatment frequency is increased, and more treatment pain is brought to patients.

Disclosure of Invention

In order to simultaneously treat the cervical os and cervical ducts by photothermal therapy, the present application provides a photothermal therapy endoscopic probe.

The application provides a photothermal therapy endoscope probe adopts following technical scheme:

the utility model provides a photothermal therapy endoscope probe, includes first probe and second probe, first probe light-emitting end with the second probe advances the light end and is connected, just first probe is towards one side of second probe has first light-emitting surface, first light-emitting surface is located the second probe advances the light end outside, the week side of second probe is the second light-emitting surface, first probe is connected with first leaded light portion, first leaded light portion goes out the light end and is located in the first probe, with first probe goes out the light end corresponding, be equipped with second leaded light portion in the second probe, second leaded light portion is used for with getting into the light conduction of second probe to the second goes out the light surface.

Through adopting above-mentioned technical scheme, when using the endoscope probe to treat, the light that the light source sent is conducted in the first probe through first leaded light portion, and the light that is conducted in the first probe, and a part is through first light-emitting face direct irradiation on the cervical mouth, and another part is through second probe light inlet end irradiation on second leaded light portion, and second leaded light portion can be with light conduction to the second light-emitting face, shines on the cervical canal inner wall through the second light-emitting face for the endoscope can treat cervical mouth and cervical canal two positions simultaneously, has reduced treatment cost and treatment frequency.

Optionally, the first light emitting surface is annular and is located at the periphery of the light inlet end of the second probe.

By adopting the technical scheme, when the endoscope probe is used for treatment, the light emitted by the first light emitting surface can cover the whole cervical orifice, so that the treatment effect is improved.

Optionally, a light homogenizing element is arranged in the first probe, and the light homogenizing element is located in the light emitting direction of the first light guide part.

By adopting the technical scheme, when the endoscope probe is used for treatment, the light homogenizing piece can homogenize uneven light emitted by the first light guide part into a flat-top beam, the illumination intensity of the flat-top beam is uniform, and the excessive or insufficient exposure of partial areas can be prevented during treatment, so that the treatment effect is improved.

Optionally, a collimating element is disposed inside the first probe, and the collimating element is located in the light emitting direction of the first light guiding portion.

By adopting the technical scheme, when the endoscope probe is used for treatment, the collimation piece can convert divergent light emitted by the dodging piece into parallel light, so that the light can be uniformly irradiated on a treatment part, and the treatment effect is improved.

Optionally, the collimating element is an aspheric lens.

By adopting the technical scheme, compared with other light collimating parts, the aspheric lens has no complicated system, and light can be collimated by only one lens, so that the failure rate of the endoscope probe can be reduced.

Optionally, the second light guiding portion is a reflecting mirror, the reflecting mirror has a tapered reflecting surface, a tip of the reflecting mirror faces the light inlet end of the second probe, and the tapered reflecting surface faces the second light outlet surface.

By adopting the technical scheme, the reflector has the characteristics of simple structure, convenience in installation and the like, and the failure rate of the endoscope probe is reduced.

Optionally, the length of the second probe is a, the maximum width of the second probe perpendicular to the length direction is B, the ratio of a to B is 3.5:1-4.5:1, and the tapered reflecting surface is a convex surface.

By adopting the technical scheme, when the ratio of A to B is lower than 3.5:1, the treatment effect on the cervical canal is poor; if the ratio of A to B is higher than 4.5:1, the second probe is too long, which may cause damage to the patient. Therefore, when the ratio of A to B is 3.5:1-4.5:1, the medicine has good treatment effect and does not hurt patients. And because the incident angle is equal to the emergent angle when the light is reflected, the conical reflecting surface needs to be set to be a convex surface so as to ensure the treatment effect of the second probe.

Optionally, a camera is disposed on an end face of the second probe facing away from the first probe.

Through adopting above-mentioned technical scheme, when using endoscope probe treatment, accessible camera real-time localization pathological change position realizes the accurate treatment to pathological change position, promotes treatment efficiency and treatment.

Optionally, the first probe and the second probe are internally provided with a liquid injection pipe which is communicated with each other, and the end face of the second probe, which is away from the first probe, is provided with a liquid injection hole which is communicated with the liquid injection pipe.

Through adopting above-mentioned technical scheme, when using endoscope probe treatment, can pour into distilled water into the notes intraductal through annotating the liquid hole and wash pathological change position, still can pour into the photosensitizer cooperation treatment into the notes intraductal, after the treatment, can pour into antibiotic antiphlogistic medicine into the notes intraductal, promoted the efficiency when treating.

Optionally, the liquid injection pipe is a light transmission pipe.

Through adopting above-mentioned technical scheme, when using the endoscope probe treatment, to cervical mouth and cervical canal part treatment light that sends can shine on the notes liquid pipe, and the light-transmitting notes liquid pipe is compared in the light-proof notes liquid pipe can reduce notes liquid pipe absorption to light, promotes treatment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the endoscope probe is used for treatment, light conducted into the first probe through the first light guide part is divided into two parts, one part directly irradiates the cervical orifice, the other part is conducted to the second light emitting surface through the second light guide part and irradiates the cervical canal, so that treatment on the cervical orifice and the cervical canal can be realized at the same time, and the treatment efficiency is improved;

2. the treatment light is homogenized and collimated by arranging the light homogenizing piece and the collimating piece, so that the treatment light is uniform in illumination, can uniformly irradiate the cervical orifice, and improves the treatment effect;

3. the accurate treatment of the lesion part is realized through the camera; the photosensitizer is injected into the liquid injection channel and the liquid injection hole for adjuvant therapy, and the liquid injection channel and the liquid injection hole can be used for cleaning and diminishing inflammation of the lesion part, so that the therapeutic efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a phototherapy endoscope probe in an embodiment of the present application.

Reference numerals illustrate: 1.a first probe; 2. a second probe; 1a, a first light-emitting surface; 2a, a second light-emitting surface; 3. a first light guide portion; 4. a second light guide portion; 5. a light homogenizing part; 6. a collimating member; 7. a camera; 8. a liquid injection pipe; 9. a liquid injection hole; 10. a first fixing member; 11. and a second fixing member.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1.

The embodiment of the application discloses an endoscope probe for photothermal therapy. Referring to fig. 1, an optical thermo-therapy endoscope probe includes a first probe 1, a second probe 2, a first light guiding portion 3 and a second light guiding portion 4, wherein a light emitting end of the first probe 1 is connected with a light entering end of the second probe 2, a side of the first probe 1 facing the second probe 2 has a first light emitting surface 1a, the first light emitting surface 1a is located outside the light entering end of the second probe 2, and a peripheral side surface of the second probe 2 is a second light emitting surface 2a.

The first probe 1 is connected with the first light guide part 3, the light emitting end of the first light guide part 3 is positioned in the first probe 1 and corresponds to the light emitting end of the first probe 1, namely, light emitted by the first light guide part 3 can be emitted through the light emitting end of the first probe 1, one part of the light is emitted from the first light emitting surface 1a, the other part of the light is conducted to the light inlet end of the second probe 2, the second probe 2 is internally provided with the second light guide part 4, and the second light guide part 4 can conduct the light entering the second probe 2 through the light inlet end of the second probe 2 to the second light emitting surface 2a.

When the endoscope probe is used for treatment, light emitted by the light source enters the first probe 1 through the first light guide part 3, one part of the light entering the first probe 1 irradiates on the cervical orifice through the first light emitting surface 1a, the other part enters the second probe 2 through the light inlet end of the second probe 2, the light entering the second probe 2 is conducted to the second light emitting surface 2a through the second light guide part 4, and irradiates on the inner wall of the cervical canal from the second light emitting surface 2a, so that the treatment of the cervical orifice and the cervical canal can be realized at the same time, and the treatment cost and treatment frequency are reduced. The light source may be a laser or an LED, depending on the power requirements of the desired therapeutic effect.

The first light guiding portion 3 may be an optical fiber bundle or a light pipe, in this embodiment, the first light guiding portion 3 is an optical fiber bundle, the first probe 1 is provided with a yielding hole, and the light emitting end of the optical fiber bundle passes through the yielding hole and is located in the first probe 1. Compared with other light guide modes, the loss generated when the light is transmitted is lower, the loss in the process of transmitting the light emitted by the light source to the endoscope can be reduced, and the treatment effect of the endoscope probe is improved. Meanwhile, the optical fiber has the characteristics of insulation, high temperature resistance, corrosion resistance and the like, and the service life of the endoscope probe can be prolonged.

In this embodiment, the second light guiding portion 4 is a reflecting mirror with a conical reflecting surface, the tip of the reflecting mirror faces the light inlet end of the second probe 2, the conical reflecting surface faces the second light outlet surface 2a, and the light entering the second probe 2 is reflected to the second light outlet surface 2a through the conical reflecting surface of the reflecting mirror. The reflector has the characteristics of simple structure, convenient installation and the like, and is higher in efficiency when the endoscope probe is manufactured, and meanwhile, the endoscope probe is not easy to damage in the use process, so that the failure rate of the endoscope probe is reduced. The second light guide 4 may also be a planar mirror group in other embodiments.

The second probe 2 can be a round table or a cylinder, the length of the second probe 2 is A, and the maximum width of the second probe 2 perpendicular to the length direction is B. In this embodiment, the second probe 2 is a cylinder, a is the height of the second probe 2, and B is the diameter of the second probe 2. The ratio of A to B is 3.5:1-4.5:1. When the ratio of A to B is lower than 3.5:1, the treatment effect on cervical canal is poor; if the ratio of A to B is higher than 4.5:1, the second probe 2 may be too long, possibly causing damage to the patient. Therefore, when the ratio of A to B is 3.5:1-4.5:1, the medicine has good treatment effect and does not hurt patients. Since the incident angle is equal to the exit angle when the light is reflected, the tapered reflective surface needs to be set to be convex, so that each position of the second light emitting surface 2a can be ensured to emit light, and the treatment effect of the second probe 2 can be ensured.

The first probe 1 and the second light guide part 4 are provided with light outlet holes, and the second probe 2 and the light outlet holes are provided with light inlet holes. By this arrangement, the loss of light transmitted from the first probe 1 to the second probe 2 can be reduced.

The first light emitting surface 1a may be annular, or may be located at one or more sides of the light inlet end of the second probe 2. In this embodiment, the first light emitting surface 1a is annular and is located at the periphery of the light inlet end of the second probe 2. Because the cervical physiological structure is fixed, when the endoscope probe is used for treatment, the light irradiated by the annular first light-emitting surface 1a can uniformly irradiate the whole cervical orifice to treat the whole cervical orifice, and the treatment effect of the endoscope probe is improved.

The first probe 1 is internally provided with a light homogenizing member 5, the light homogenizing member 5 is positioned in the light emitting direction of the first light guide part 3, the light homogenizing member 5 is fixed inside the first probe 1 through a first fixing member 10, and the first fixing member 10 is an annular member and is arranged along the inner wall of the first probe 1. In the case of treatment using the endoscope probe, since the light emitted from the light source is uneven light, the light transmitted to the inside of the first probe 1 through the first light guide part 3 is also uneven light, and when uneven light is irradiated to the treatment site, overexposure or underexposure may occur in a part of the treatment area.

The light homogenizing piece 5 can homogenize uneven light into a flat-top beam with the uniformity of more than 90%, the flat-top beam has the characteristic of uniform light intensity everywhere, the light intensity of the light irradiated to each treatment area can be uniform, and the treatment effect of the endoscope probe is improved. The light homogenizing element 5 in this embodiment is a microlens array, and in other embodiments, the light homogenizing element 5 may be a diffractive optical element or an aspheric lens group.

The first probe 1 is internally provided with a collimating element 6, the collimating element 6 is positioned in the light emitting direction of the first light guide part 3, the collimating element 6 is fixed in the first probe 1 through a second fixing element 11, and the second fixing element 11 is an annular fixing element and is arranged along the inner wall of the first probe 1. In other embodiments, the light-equalizing member 5 and the collimating member 6 may be disposed at the same time, and the light-equalizing member 5 may be disposed between the first light guiding portion 3 and the collimating member 6, or only one or none of them may be disposed.

When the endoscope probe is used for treatment, the light emitted by the first light guide part 3 is divergent light, and the collimator 6 can convert the divergent light into parallel light. In an alternative embodiment, the first light-emitting surface 1a has an outer diameter of 30mm and an inner diameter of 5mm. The circular light of (1) is directly irradiated to the cervical orifice through the first light-emitting surface 1a, and the +.>The light beam is transmitted to the second light emitting surface 2a through the second light guiding portion 4, and is irradiated from the second light emitting surface 2a to the inner wall of the cervical canal.

The collimating element 6 may be an aspheric lens or a convex lens group. In this embodiment, the collimating element 6 is an aspheric lens, and compared with a convex lens group, the aspheric lens can achieve the collimating effect of the convex lens group by only one lens, thereby reducing the complexity of the collimating element 6 and reducing the failure rate of the endoscope probe.

The end face of the second probe 2 facing away from the first probe 1 is provided with a camera 7. Before the endoscope probe is used for treatment, a pathological change part can be observed through the camera 7, and diagnosis can be carried out on the pathological change part; when the endoscope probe is used for treatment, the pathological change part can be positioned in real time through the camera 7, so that the accurate treatment of the pathological change part is realized, and the treatment efficiency and the treatment effect of the endoscope probe are improved. The camera can be a miniature CCD or CMOS.

The first probe 1 and the second probe 2 are internally provided with a communicated liquid injection pipe 8, and the end face of the second probe 2, which is away from the first probe 1, is provided with a liquid injection hole 9 communicated with the liquid injection pipe 8. When the endoscope probe is used for treatment, distilled water can be injected into the lesion part through the liquid injection pipe 8 and the liquid injection hole 9, the lesion part can be cleaned, and a photosensitizer can be injected for cooperation treatment. After treatment with the endoscope probe, antibacterial and anti-inflammatory drugs can be injected into the lesion through the liquid injection tube 8 and the liquid injection hole 9. The liquid injection pipe 8 and the liquid injection hole 9 are arranged, so that the treatment efficiency of the endoscope probe can be improved.

The liquid injection pipe 8 is a light-transmitting pipe, when the endoscope probe is used for treatment, part of treatment light emitted to the cervical orifice and the cervical canal can be irradiated on the liquid injection pipe 8, and compared with the liquid injection pipe 8 which is not light-transmitting, the light-transmitting liquid injection pipe 8 can reduce the absorption of the liquid injection pipe 8 to light, so that the light emitted to the cervical orifice and the cervical canal is more uniform, and the treatment effect of the endoscope probe is improved.

The working principle of the phototherapy endoscope probe provided by the embodiment is as follows:

when the endoscope probe is used for treatment, the first light guide part 3 transmits light emitted by a light source to the light homogenizing part 5 in the first probe 1, the light homogenizing part 5 converts uneven light into flat-top beams and irradiates the flat-top beams on the collimating part 6, the collimating part 6 converts divergent light into parallel light, one part of the parallel light directly irradiates the cervical orifice through the first light emitting surface 1a, the other part of the parallel light is transmitted to the second light guide part 4 in the second probe 2 through the light inlet end of the second probe 2, and the second light guide part 4 transmits the part of the parallel light to the second light emitting surface 2a and irradiates the inner wall of the cervical canal through the second light emitting surface 2a so as to treat the cervical orifice and the cervical canal simultaneously.

The first probe 1 and the second probe 2 are internally provided with a liquid injection pipe 8, the first fixing piece 10 and the second fixing piece 11 are provided with through holes at the relative positions of the liquid injection pipe 8, the end face of the second probe 2, which is away from the first probe 1, is provided with a camera 7 and a liquid injection hole 9, and the liquid injection pipe 8 is communicated with the liquid injection hole 9. When the endoscope probe is used for treatment, the position of the lesion can be determined through the camera 7; distilled water can be injected into the liquid injection pipe 8 and the liquid injection hole 9 to clean the lesion part, photosensitizer is injected for adjuvant therapy, antibacterial and anti-inflammatory drugs are injected, and the treatment efficiency of the endoscope probe is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a photothermal therapy endoscope probe, its characterized in that includes first probe (1) and second probe (2), first probe (1) light-emitting end with second probe (2) advances the optical end and is connected, just first probe (1) face one side of second probe (2) has first light-emitting surface (1 a), first light-emitting surface (1 a) are located second probe (2) light-emitting end outside, the week side of second probe (2) is second light-emitting surface (2 a), first probe (1) is connected with first light guide part (3), first light guide part (3) light-emitting end is located in first probe (1) with first probe (1) light-emitting end corresponds, be equipped with second light guide part (4) in second probe (2), second light guide part (4) are used for with getting into the light of second probe (2) is conducted to second light-emitting surface (2 a).

2. A phototherapy endoscope probe according to claim 1, characterized in that the first light emitting surface (1 a) is annular and is located at the periphery of the light inlet end of the second probe (2).

3. The phototherapy endoscope probe according to claim 1, characterized in that a light homogenizing member (5) is provided inside the first probe (1), and the light homogenizing member (5) is located in the light emitting direction of the first light guiding portion (3).

4. A phototherapy endoscope probe according to claim 3, characterized in that a collimating element (6) is arranged inside the first probe (1), and the collimating element (6) is located in the light emitting direction of the first light guiding portion (3).

5. Phototherapy endoscopic probe according to claim 4, characterized in that said collimating element (6) is an aspheric lens.

6. A phototherapy endoscope probe according to claim 1, characterized in that the second light guiding portion (4) is a mirror having a tapered reflecting surface, the tip of the mirror being directed towards the light inlet end of the second probe (2), the tapered reflecting surface being directed towards the second light outlet surface (2 a).

7. The phototherapy endoscope probe according to claim 6, characterized in that the length of the second probe (2) is a, the maximum width of the second probe (2) perpendicular to the length direction is B, the ratio of a to B is 3.5:1-4.5:1, and the tapered reflective surface is convex.

8. Phototherapy endoscopic probe according to claim 1, characterized in that the end face of the second probe (2) facing away from the first probe (1) is provided with a camera (7).

9. Phototherapy endoscope probe according to claim 1, characterized in that the first probe (1) and the second probe (2) are internally provided with a communicated liquid injection pipe (8), and the end face of the second probe (2) facing away from the first probe (1) is provided with a liquid injection hole (9) communicated with the liquid injection pipe (8).

10. Phototherapy endoscope probe according to claim 9, characterized in that the infusion tube (8) is a light-transmitting tube.