Photodynamic therapy instrument probe for treating cervical intraepithelial neoplasia and photodynamic therapy instrument

Abstract

This application relates to the field of cervical cancer treatment, and particularly to a photodynamic therapy instrument for treating precancerous lesions of the cervix. The probe of the photodynamic therapy instrument for treating precancerous lesions of the cervix includes a probe body and a light-emitting body located inside the probe body. The probe body is made of a light-transmitting material. The probe body includes a first probe rod for being inserted into the cervical canal and a second probe rod fixedly connected to one end of the first probe rod. When the first probe rod is located in the cervical canal, one end of the second probe rod facing the first probe rod abuts against the external orifice of the cervix. This application has the effects of reducing the frequency of probe replacement and shortening the treatment time.

Description

Technical Field

[0001] This application relates to the field of cervical cancer treatment, and particularly to a photodynamic therapy instrument for treating precancerous lesions of the cervix. Background Art

[0002] Photodynamic therapy (PDT) is a new method for treating tumors, precancerous lesions, proliferative skin diseases, and vascular diseases using photosensitizing drugs and laser activation. By irradiating the lesion site with a specific wavelength, the photosensitizing drug selectively aggregated in the lesion tissue can be activated, triggering a photochemical reaction to destroy the lesion. In the new generation of photodynamic therapy (PDT), the photosensitizing drug transfers energy to the surrounding oxygen, generating highly reactive singlet oxygen. Singlet oxygen can undergo an oxidation reaction with nearby biological macromolecules, producing cytotoxins to kill the diseased cells. Compared with traditional therapies, the advantage of PDT is that it can perform precise and effective treatment, and the side effects of this therapy are also very small.

[0003] Currently, as an emerging field in tumor treatment, the indications of photodynamic therapy in gynecology include: high-risk HPV infection, cervical intraepithelial neoplasia, cervical cancer (inoperable or recurrent after surgery), vaginal cancer, vulvar cancer, etc. Its advantages are minimally invasive or even non-invasive, can eliminate hidden lesions, selectively kill tumor cells, do not damage normal tissues, can preserve the integrity of the female reproductive organs, and do not affect normal fertility needs. Because of its no obvious systemic adverse reactions, it is especially suitable for patients with poor general conditions who cannot tolerate other treatment methods, and can be repeated for treatment multiple times. Local drug administration, with few systemic side effects.

[0004] Currently, when treating cervical cancer, usually a probe is first selected to irradiate inside the cervical canal to treat the lesion site inside the cervical canal; then another probe is replaced to make the other probe irradiate at the external orifice of the cervix to treat the lesion site at the external orifice of the cervix. It is necessary to reciprocally replace the probe, the operation is very troublesome, and the treatment time is relatively long. Summary of the Invention

[0005] In order to reduce the frequency of probe replacement and shorten the treatment time, this application provides a photodynamic therapy instrument for treating precancerous lesions of the cervix.

[0006] A photodynamic therapy instrument for treating precancerous lesions of the cervix provided by this application adopts the following technical solutions:

[0007] In the first aspect, this application provides a probe of a photodynamic therapy instrument for treating precancerous lesions of the cervix, adopting the following technical solutions:

[0008] A photodynamic therapy instrument probe for treating cervical pre-cancerous lesions, comprising a probe body and a light-emitting body located inside the probe body. The probe body is made of a light-transmitting material. The probe body includes a first probe rod for inserting into the cervical canal and a second probe rod fixedly connected to one end of the first probe rod. When the first probe rod is located inside the cervical canal, the end of the second probe rod facing the first probe rod abuts against the external orifice of the cervix.

[0009] By adopting the above technical solution, before use, the photosensitizer is first injected into the patient's body by coating or injection, so that the photosensitizer is located at the lesion site. During use, the first probe rod is directly inserted into the cervical canal. At this time, the end of the second probe rod facing the first probe rod will abut against the external orifice of the cervix. The light-emitting body located inside the probe body is turned on. Since the probe body is made of a light-transmitting material, when the light emitted by the light-emitting body irradiates the photosensitizer at the lesion site, the photosensitizer will generate singlet oxygen and other reactive oxygen components, thereby causing photodamage to the tumor cells in this area. Since the light emitted by the light-emitting body in the first probe rod and the second probe rod can irradiate the inside of the cervical canal and the external orifice of the cervix at the same time, there is no need to replace the probe. Treatment of multiple sites can be achieved with one probe, and multiple sites are treated simultaneously, greatly reducing the frequency of probe replacement and shortening the treatment time.

[0010] Optionally, the diameter of the second probe rod is greater than that of the first probe rod, and the second probe rod is used to abut against the inner wall of the vagina.

[0011] By adopting the above technical solution, when cervical cancer lesions occur, cancer cells will appear near the cervical canal. If the cancer cells spread into the vagina, the photosensitizer in the human body will also accumulate at the cancer cells in the vagina. Since the second probe rod is made of a light-transmitting material, when the light-emitting body inside the second probe rod irradiates the photosensitizer, the photosensitizer in the vagina will also undergo a chemical reaction to destroy the cancer cells in the vagina, making the treatment more comprehensive.

[0012] Optionally, the probe body further includes an abutting ring fixedly connected to the outer wall of the second probe rod. The abutting ring is located at one end of the second probe rod close to the first probe rod, and the outer ring of the abutting ring can abut against the cervical fornix.

[0013] By adopting the above technical solution, during the treatment of patients, it is found that many patients are not thoroughly treated and cancer cells recur repeatedly. After research, it is found that cancer cells are also distributed throughout the cervical fornix, and because there are many folds in the cervical fornix, light is difficult to irradiate to the cervical fornix, so the cancer cells in this area cannot be eliminated, resulting in repeated recurrence of patients after surgery. The setting of the abutting ring enables the abutting ring to abut against the cervical fornix when the probe of the photodynamic therapy instrument extends into the treatment site, and the light emitted by the light-emitting body inside the abutting ring can directly pass through the abutting ring and irradiate on the cervical fornix, thereby clearing the cancer cells in the cervical fornix.

[0014] Optionally, the abutting ring extends gradually in the direction of the first probe rod from the side close to the second probe rod to the side far from the second probe rod.

[0015] By adopting the above technical solution, the abutting ring is more adapted to the shape of the human cervical fornix.

[0016] Optionally, the inside of the abutting ring is divided into multiple regions, and the light-emitting bodies in each region are controlled by the same switch.

[0017] By adopting the above technical solution, the light-emitting bodies in the corresponding regions can be turned on for different diseased regions for targeted treatment, making the treatment more flexible.

[0018] Optionally, the light-emitting bodies include a first light-emitting body installed in the first probe rod, a second light-emitting body installed in the second probe rod, and a third light-emitting body installed in the abutting ring;

[0019] The first light-emitting body is a diffused optical fiber or liquid silicone;

[0020] The second light-emitting body and the third light-emitting body are one of diffused optical fiber, LED lamp and liquid silicone.

[0021] By adopting the above technical solution, the light-emitting of the light-emitting body can be realized, providing bright light for the probe of the photodynamic therapy instrument.

[0022] Optionally, a control member for controlling the opening or contraction of the abutting ring is provided inside the abutting ring.

[0023] By adopting the above technical solution, the opening or fitting of the abutting ring with the first probe rod can be controlled by the control member, so that when the probe of the photodynamic therapy instrument extends into the human lesion, the contraction of the abutting ring can be controlled by the control member, facilitating the placement and operation of the probe of the photodynamic therapy instrument. When the probe of the photodynamic therapy instrument is placed at the lesion position, the control member is used to control the opening of the abutting ring, so that the abutting ring abuts against the cervical fornix, making the operation more convenient and flexible.

[0024] Optionally, the abutting ring is a hollow structure with a hollow interior. The control member includes an inflation tube and a deflation tube located inside the second probe rod. Both the inflation tube and the deflation tube are connected to the interior of the abutting ring at one end and exposed to the outside from the end of the second probe rod away from the first probe rod at the other end.

[0025] By adopting the above technical solution, when the probe of the photodynamic therapy instrument needs to be inserted into the human body lesion, the inside of the abutting ring can be deflated through the deflation tube. At this time, the abutting ring will lose its support and it is convenient to pass the abutting ring through the vaginal orifice. When the abutting ring is located at the lesion position, the inside of the abutting ring is inflated through the inflation tube, so that the abutting ring is restored under the action of the gas and thus abuts against the cervical fornix, and the operation is very convenient.

[0026] Optionally, the abutting ring has a memory property. A flanging is provided on the side of the abutting ring away from the second probe rod. The control member includes a pull rope installed in the flanging. Both ends of the pull rope pass through the interior of the abutting ring and the second probe rod and are exposed to the outside from the end of the second probe rod away from the first probe rod.

[0027] By adopting the above technical solution, under normal conditions, under the action of its own memory of the abutting ring, the abutting ring is in an open state. When it is necessary to operate the abutting ring to fit with the first probe rod, the doctor directly pulls the pull rope outside, and the pull rope can drive the outer ring of the abutting ring to contract, so that the abutting ring fits on the first probe rod appropriately, realizing the control of the open end of the abutting ring.

[0028] In a second aspect, the present application provides a photodynamic therapy instrument, adopting the following technical solution:

[0029] A photodynamic therapy instrument includes the above-mentioned photodynamic therapy instrument probe for treating precancerous lesions of the cervix and a camera installed at the end of the second probe rod away from the first probe rod.

[0030] By adopting the above technical solution, the camera can provide illumination for the installation of the probe body, making it more convenient for the installation of the probe body.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. By providing the first probe rod and the second probe rod in the present application and selecting a probe body made of a light-transmitting material, when the probe body is placed at the cervical lesion site, the light-emitting body in the probe body can simultaneously provide light for the cervical canal and the external orifice of the cervix to excite the photosensitizer at the cervical canal and the external orifice of the cervix to eliminate cancer cells, realizing the treatment of the cervical canal and the external orifice of the cervix simultaneously through one probe, and the treatment efficiency is higher;

[0033] 2. The provision of the abutting ring enables the elimination of cancer cells at the cervical fornix, resulting in a more thorough treatment and better treatment effect.

[0034] 3. The setting that the diameter of the second probe rod is larger than that of the first probe rod enables the second probe rod to fit against the inner wall of the vagina, achieving the treatment of cancer cells in the vagina. With a single probe body, the treatment of cancer cells in the cervical canal, external os of the cervix, cervical fornix, and vagina can be achieved simultaneously, resulting in a better treatment effect and higher treatment efficiency. Description of the Drawings

[0035] Figure 1 It is a schematic diagram of the overall structure of the probe of the photodynamic therapy instrument of the present application.

[0036] Figure 2 It is Figure 1 The front view sectional schematic diagram in

[0037] Figure 3 It is Figure 2 The enlarged schematic diagram at position A in

[0038] Figure 4 It is a schematic diagram made to illustrate another form of the control member.

[0039] Figure 5 It is a schematic diagram of the overall structure of the photodynamic therapy instrument of the present application.

[0040] Description of the reference numerals: 1. Probe body; 11. First probe rod; 12. Second probe rod; 13. Abutting ring; 2. Light-emitting body; 21. First light-emitting body; 22. Second light-emitting body; 23. Third light-emitting body; 24. Diffusion optical fiber; 25. LED lamp; 26. Connector; 3. Control member; 31. Flange; 32. Pulling rope; 33. Inflatable tube; 34. Deflation tube; 4. Camera. Detailed Description of the Embodiment

[0041] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings.

[0042] The embodiment of the present application discloses a probe of a photodynamic therapy instrument for treating precancerous lesions of the cervix. Refer to Figure 1 and Figure 2, the photodynamic therapy instrument probe for treating cervical pre-cancerous lesions includes a probe body 1 and a light-emitting body 2 installed inside the probe body 1. Among them, the probe body 1 can be made of a flexible material with a certain hardness and has light-transmitting properties. Specifically, the material of the probe body 1 can be made of medical transparent silicone, polytetrafluoroethylene resin, or other materials that can meet the requirements. The probe body 1 made of a flexible material is convenient to be placed into the lesion site of the patient and will not cause hard damage to the patient; having a certain hardness makes the probe body 1 smoother to be placed; having light-transmitting properties enables the light emitted by the light-emitting body 2 to directly pass through the probe body 1 and irradiate on the lesion site of the patient, achieving the elimination of cancer cells.

[0043] Refer to Figure 1 and Figure 2 , the probe body 1 includes a first probe rod 11 and a second probe rod 12 integrally and fixedly connected to one end of the first probe rod 11. The inside of the first probe rod 11 and the second probe rod 12 is connected, and the diameter of the second probe rod 12 is larger than that of the first probe rod 11. When in use, when the first probe rod 11 is inserted into the cervical canal, one end of the second probe rod 12 facing the first probe rod 11 will abut against the external os of the cervix, and the outer wall of the second probe rod 12 will abut against the vaginal inner wall. It can be understood that before treatment, the photosensitizer is injected into the patient's body by coating or injection, and the photosensitizer will automatically accumulate on the cancer cells. After the probe body 1 is placed at the lesion site, the light-emitting body 2 is turned on, and the light emitted by the light-emitting body 2 will pass through the first probe rod 11 and the second probe rod 12. Among them, the light emitted by the light-emitting body 2 located inside the first probe rod 11 will irradiate inside the cervical canal, so that the photosensitizer undergoes a chemical reaction to eliminate the cancer cells inside the cervical canal; the light emitted by the light-emitting body 2 located inside the second probe rod 12 will also irradiate on the external os of the cervix from one end of the second probe rod 12 facing the first probe rod 11 to eliminate the cancer cells at the external os of the cervix. Because the second probe rod 12 is also made of a transparent material and the second probe rod 12 abuts against the vaginal inner wall, when the cancer cells spread into the vagina, the photosensitizer will also accumulate on the cancer cells in the vagina. Therefore, through the light emitted by the light-emitting body 2 inside the second probe rod 12, the photosensitizer at the vagina undergoes a chemical reaction to eliminate the cancer cells in the vagina. Through one probe body 1, the cancer cells in the cervical canal, the external os of the cervix, and the vagina can be eliminated simultaneously without cycling to replace the probe, and the treatment efficiency is higher.

[0044] When doctors treat patients, they find that the conditions of some patients relapse repeatedly, making the treatment incomplete. After research, it is found that the cancer cells of some patients will spread to the cervical fornix. Due to the many folds at the cervical fornix of the human body, when treating, it is difficult for light to reach the deep part of the cervical fornix, so it is difficult to eliminate the cancer cells at the cervical fornix of the human body, resulting in the repeated relapse of the condition.

[0045] In order to eliminate cancer cells in the human cervical vault and improve the treatment effect. Figure 1 and Figure 2 The probe body 1 also includes an abutment ring 13 fixedly connected to the side wall of the second probe rod 12. The abutment ring 13 is located at one end of the second probe rod 12 facing the first probe rod 11, and the outer wall of the first probe rod 11 and the abutment ring 13 are smoothly transitioned. When the probe body 1 is placed in the lesion site, the abutment ring 13 is also embedded in the cervical vault. When the light emitting body 2 in the probe body 1 is turned on, the light emitted by the light emitting body 2 will pass through the abutment ring 13 and irradiate the cervical vault, thereby eliminating cancer cells in the cervical vault.

[0046] The outer ring of the abutment ring 13 is bent toward the direction of the first probe rod 11, so that the abutment ring 13 is in a bowl shape as a whole, and the opening of the abutment ring 13 faces the direction of the first probe rod 11. The abutment ring 13 is consistent with the shape of the human cervical vault. When the abutment ring 13 is placed in the human cervical vault, the abutment ring 13 can open the folds at the cervical vault, so that the abutment ring 13 fits the cervical vault better, and the treatment effect is better.

[0047] Reference Figure 2 and Figure 3 In order to facilitate the operation of the abutment ring 13 passing through the vagina to reach the cervical vault, a control member 3 for controlling the abutment ring 13 to expand or contract is provided on the abutment ring 13. When the abutment ring 13 needs to be placed in the cervical vault, the control member 3 can be used to control the abutment ring 13 to fit with the first probe rod 11, so that the abutment ring 13 can pass through the vagina to reach the cervical vault; when the abutment ring 13 reaches the cervical vault, the control member 3 can be used to control the abutment ring 13 to expand, so that the abutment ring 13 restores the bowl-shaped structure, so as to expand the folds at the cervical vault and eliminate the cancer cells at the cervical vault.

[0048] Reference Figure 2 and Figure 3In one example of the present application, the abutment ring 13 has a memory property, and the abutment ring 13 is bowl-shaped in its own memory state. A flange 31 is provided on the outer ring of the abutment ring 13, and the flange 31 is bent in the direction of the inner wall of the abutment ring 13. A pull rope 32 is placed in the flange 31, and the middle part of the pull rope 32 is located in the flange 31. The two ends of the pull rope 32 pass through the flange 31, and pass through the inside of the abutment ring 13 and the inside of the second probe rod 12, and finally extend out of the outside from the end of the second probe rod 12 away from the first probe rod 11. Under normal conditions, under the effect of the memory property of the abutment ring 13 itself, the abutment ring 13 is bowl-shaped. When the abutment ring 13 needs to be placed in the cervical vault, the doctor can pull the pull rope 32 from the end of the second probe rod 12 extending out of the outside, thereby driving the pull rope 32 located in the flange 31 to become less, so that the open end of the abutment ring 13 shrinks, and the abutment ring 13 can be passed through the vagina very conveniently at this time. Until the abutment ring 13 is located at the cervical vault, the force applied to the pull rope 32 is released, and the abutment ring 13 recovers under the effect of its own memory property.

[0049] Reference Figure 4 In another example of the present application, the abutment ring 13 is made of a soft transparent material, such as transparent silicone. The abutment ring 13 is a hollow structure with a hollow interior, and the interior of the abutment ring 13 is not connected to the interior of the second probe rod 12. The control member 3 includes an inflation tube 33 and an air release tube 34 located inside the second probe rod 12, and one end of the inflation tube 33 and the air release tube 34 are connected to the interior of the abutment ring 13, and the other end extends from the end of the second probe rod 12 away from the first probe rod 11 to the outside. It can be understood that valves for controlling the opening and closing of the inflation tube 33 and the air release tube 34 are installed at the ends of the inflation tube 33 and the air release tube 34 located in the outside, and the end of the inflation tube 33 located in the outside is connected to the outside inert gas (such as nitrogen). When the abutment ring 13 needs to be placed in the cervical vault, the gas in the abutment ring 13 can be released through the air release tube 34, and the abutment ring 13 loses support and shrinks at this time, and can smoothly pass through the vagina to reach the cervical vault. When the abutment ring 13 reaches the cervical vault, external inert gas is transported into the abutment ring 13 through the inflation tube 33, so that the abutment ring 13 can be expanded, so that the abutment ring 13 fits the cervical vault.

[0050] Reference Figure 2 The light emitting body 2 is installed inside the first probe rod 11, the second probe rod 12 and the abutting ring 13 at the same time to emit bright light to illuminate the photosensitizer of the cancer cells, so that the photosensitizer undergoes a chemical reaction to eliminate the cancer cells.

[0051] The illuminant 2 includes a first illuminant 21 installed in the first probe rod 11 , a second illuminant 22 installed in the second probe rod 12 , and a third illuminant 23 installed in the abutment ring 13 .

[0052] Among them, since the diameter of the human cervical canal is small, the diameter of the first probe rod 11 is also small, which is 3 mm. Therefore, the first light-emitting body 21 can be a diffused optical fiber 24 or liquid silicone. One end of the first light-emitting body 21 is located inside the first probe rod 11, and the other end is used to connect to an external light source. The external light source can be a laser or an LED lamp. Through the first light-emitting body 21, the light of the external power source can be transmitted to the inside of the probe body 1 to achieve light emission.

[0053] The second light-emitting body 22 can be a diffused optical fiber 24, an LED lamp 25 or liquid silicone. When the second light-emitting body 22 is a diffused optical fiber 24 or liquid silicone, one end of the second light-emitting body 22 is located inside the second probe rod 12, and the other end is used to connect to an external light source. The external light source can also be a laser or an LED lamp, etc., to achieve the light emission of the second light-emitting body 22. When the second light-emitting body 22 is an LED lamp 25, the other end of the LED lamp 25 is connected to an external power source, and light emission can be achieved when the LED lamp 25 is powered on.

[0054] The third light-emitting body 23 is the same as the second light-emitting body 22, and can be any one of a diffused optical fiber 24, an LED lamp 25 and liquid silicone, and will not be elaborated here.

[0055] It can be understood that the light-emitting body 2 located inside the probe body 1 can be fixed on the inner wall of the probe body 1 by a buckle or by other means, as long as the fixation of the light-emitting body 2 can be achieved. The specific installation method can be selected according to needs and will not be elaborated here.

[0056] Refer to Figure 2 , a connector 26 is installed at one end of the second probe rod 12 away from the first probe rod 11, and the light-emitting body 2 is connected to the connector 26. During use, by connecting the connector 26 to an external light source or an external power source, the light emission of the light-emitting body 2 can be controlled. And the control member 3 passes through the connector 26, facilitating the control of the contraction or expansion of the abutting ring 13 through the control member 3.

[0057] Among them, the inside of the abutting ring 13 can be divided into multiple regions. In this application, the inside of the abutting ring 13 is divided into four regions as an example for illustration. The light-emitting bodies 2 in each region are controlled by the same switch, so that during use, according to the position of the patient's lesion, the light-emitting bodies 2 in the corresponding region can be controlled to emit light through the corresponding switch, and the operation is more flexible.

[0058] The implementation principle of the probe of the photodynamic therapy instrument for treating cervical precancerous lesions in the embodiments of the present application is as follows: Before use, the photosensitizer is injected into the patient's body by coating or injection, and the photosensitizer will accumulate on cancer cells. During use, the abutting ring 13 can be controlled by the control member 3 to contract, and then the probe body 1 is placed into the lesion site, so that the first probe rod 11 extends into the cervical canal, and one end of the second probe rod 12 facing the first probe rod 11 abuts against the external os of the cervix. Then, the control member 3 is used to control the abutting ring 13 to reset, so that the abutting ring 13 abuts against the cervical fornix, thereby stretching the folds at the cervical fornix. Then, the light-emitting body 2 is operated to emit light, and the light emitted by the light-emitting body 2 will pass through the probe body 1 to reach the cancer cells, thereby exciting the photosensitizer at the cancer cells to undergo a chemical reaction to eliminate the cancer cells. It is possible to simultaneously eliminate cancer cells in the cervical canal, the external os of the cervix, the vagina, and the cervical fornix, without replacing the probe, which greatly reduces the time for replacing the probe, shortens the treatment time, and improves the treatment effect.

[0059] The embodiments of the present application also disclose a photodynamic therapy instrument for treating cervical precancerous lesions. Referring to Figure 5 , the photodynamic therapy instrument for treating cervical precancerous lesions includes the above-mentioned probe of the photodynamic therapy instrument for treating cervical precancerous lesions and a camera 4 installed on the probe body 1. The camera 4 is installed at one end of the first probe rod 11 away from the second probe rod 12, and the camera 4 can be connected to an external display screen. During use, the barrel camera 4 can capture the scene at the front end of the first probe rod 11. The doctor can also observe the image captured by the camera 4 at the display screen and operate the movement of the first probe rod 11 according to the image, so that the first probe rod 11 can be smoothly inserted into the cervical canal.

[0060] The above are all the preferred embodiments of the present application. Without limiting the protection scope of the present application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A photodynamic therapy instrument probe for treating cervical intraepithelial neoplasia, characterized in that: It includes a probe body (1) and a light-emitting body (2) located inside the probe body (1). The probe body (1) is made of a light-transmitting material. The probe body (1) includes a first probe rod (11) for being inserted into the cervical canal and a second probe rod (12) fixedly connected to one end of the first probe rod (11). When the first probe rod (11) is located inside the cervical canal, one end of the second probe rod (12) facing the first probe rod (11) abuts against the external orifice of the cervix; the second probe rod (12) is used to abut against the inner wall of the vagina; the probe body (1) further includes an abutting ring (13) fixedly connected to the outer wall of the second probe rod (12). The abutting ring (13) is located at one end of the second probe rod (12) close to the first probe rod (11), and the outer ring of the abutting ring (13) can abut against the cervical fornix; the light-emitting body (2) includes a first light-emitting body (21) installed in the first probe rod (11), a second light-emitting body (22) installed in the second probe rod (12), and a third light-emitting body (23) installed in the abutting ring (13).

2. The photodynamic therapy instrument probe for treating cervical precancerous lesions according to claim 1, characterized in that: The diameter of the second probe rod (12) is larger than the diameter of the first probe rod (11).

3. The photodynamic therapy instrument probe for treating cervical precancerous lesions according to claim 1, characterized in that: The abutting ring (13) gradually extends in the direction of the first probe rod (11) from the side close to the second probe rod (12) to the side away from the second probe rod (12).

4. The photodynamic therapy instrument probe for treating cervical precancerous lesions according to claim 1, wherein: The interior of the abutting ring (13) is divided into multiple regions, and the light-emitting body (2) in each region is controlled by the same switch.

5. The photodynamic therapy instrument probe for treating cervical intraepithelial neoplasia according to claim 1, characterized in that: The first light-emitting body (21) is a diffused optical fiber (24) or liquid silicone. The second light-emitting body (22) and the third light-emitting body (23) are one of a diffused optical fiber (24), an LED lamp (25), and liquid silicone.

6. The photodynamic therapy instrument probe for treating cervical precancerous lesions according to claim 1, wherein: A control member (3) for controlling the opening or contraction of the abutting ring (13) is provided inside the abutting ring (13).

7. The photodynamic therapy instrument probe for treating cervical intraepithelial neoplasia according to claim 6, characterized in that: The abutting ring (13) is a hollow structure with a hollow interior. The control member (3) includes an air charging pipe (33) and an air discharging pipe (34) located inside the second probe rod (12). Both the air charging pipe (33) and the air discharging pipe (34) are connected to the interior of the abutting ring (13) at one end and exposed to the outside at the other end from the end of the second probe rod (12) away from the first probe rod (11).

8. The photodynamic therapy instrument probe for treating cervical precancerous lesions according to claim 6, characterized in that: The abutting ring (13) has a memory property. A flanging (31) is provided on the side of the abutting ring (13) away from the second probe rod (12). The control member (3) includes a pull rope (32) installed in the flanging (31). Both ends of the pull rope (32) pass through the interior of the abutting ring (13) and the second probe rod (12) and are exposed to the outside at the end of the second probe rod (12) away from the first probe rod (11).

9. A photodynamic therapy instrument, characterized in that: It includes a photodynamic therapy instrument probe for treating precancerous lesions of the cervix as described in any one of claims 1-8 and a camera (4) installed at one end of the first probe rod (11) away from the second probe rod (12).

Images