Cervical medicine applying treatment support used in photodynamic therapy process

Abstract

The invention relates to the field of medical instruments, and particularly discloses a cervix uteri medicine applying treatment support used in the photodynamic therapy process, and the cervix uteri medicine applying treatment support is placed on the cervix uteri of a patient and connected with an external injector through a catheter. Comprising a support body provided with an arc groove; the stand column is arranged in the arc groove; the carrier is fixedly connected with the support body to form a treatment support with the support body; wherein a cavity is also formed in the support body; the carrier is arranged in the cavity to enable the cavity to form a first cavity and a second cavity; the surface part of the arc groove penetrates into the inner space of the first cavity to form a medicine spraying hole; the surface part of the arc groove penetrates into the inner space of the second cavity to form a backflow hole; a clamping part is formed on the side, away from the stand column, of the carrier, and an injection cavity communicated with the second cavity is formed in the clamping part. The cervix uteri medicine applying treatment support used in the photodynamic therapy process has the beneficial effect that medicine applying is convenient.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a cervical medication treatment tray used during photodynamic therapy. Background Art

[0002] Endocervical photodynamic therapy is a new, non-invasive treatment technology for gynecological HPV infection. The treatment principle is to pre-apply a photosensitizer, such as 5-aminolevulinic acid (5-ALA), to the HPV-infected endocervical area. The photosensitizer penetrates into the tissue and reacts with the enzyme to produce protoporphyrin (PpIX) with a photosensitizing effect. Experiments have shown that when PpIX encounters light of a specific wavelength (400nm-700nm), it undergoes a photochemical reaction in the body, releasing singlet oxygen (1O2) that can kill HPV viruses without harming normal cells, thereby achieving selective killing of viruses without harming cells in normal tissues, thereby achieving selective treatment purposes. Currently, in clinical practice, the prepared photosensitizer is injected onto a thin cotton ball or cotton pad; then the thin cotton ball or cotton pad is used to cover the surface of the cervix. This operation is rather cumbersome and is prone to uneven application of the photosensitizer, which greatly affects the treatment effect. Summary of the Invention

[0003] In order to improve the problem of inconvenience in applying medication, the present application provides a treatment tray for applying medication to the cervix during photodynamic therapy.

[0004] The present application provides a cervical medication treatment support for photodynamic therapy, which is placed on the patient's cervix and connected to an external syringe through a catheter. The following technical solution is adopted: comprising: a support body having an arc groove; The column is arranged in the arc groove; A carrier, fixedly connected to the support body to form a treatment support together with the support body; The support body also forms a cavity; the carrier is arranged in the cavity so that the cavity forms a first cavity and a second cavity; the surface portion of the arc groove penetrates into the interior space of the first cavity to form a spray hole; the surface portion of the arc groove penetrates into the interior space of the second cavity to form a return hole; a clamping portion is formed on the side of the carrier away from the column, and the clamping portion forms an injection cavity connected to the second cavity; The cooperation between the support body and the carrier can fit with the cervix, which is convenient for the subsequent medication operation; the design of the spray hole can apply the photosensitizer on the outer surface of the cervical opening by injection; the excess photosensitizer can be recovered by the function of the second chamber; this setting only requires placing the mass support on the cervix and applying the medicine by injection, which improves the convenience of medication.

[0005] Optionally, the support body is integrally formed of silicone, and the outer contour is constructed in a bowl shape.

[0006] Optionally, the carrier forms a support portion corresponding to the cavity; The support portion is embedded in the cavity and the end portion is tightly connected to the inner wall of the cavity; Among them, the support part is integrally formed by TPU.

[0007] Optionally, the support body forms an opening into the interior space of the cavity; The inner wall of the cavity near the notch of the arc groove 4 forms an embedded groove corresponding to the side of the carrier; The side edges of the opening form a wrapping portion to completely wrap the surface of the clamping portion.

[0008] Optionally, the carrier is located in the inner space of the cavity; The cavity space close to the arc groove 4 is defined as the first cavity; The cavity space away from the arc groove 4 is defined as the second cavity; The reflux hole is located on the inner wall of the arc groove 4 and extends along the radial direction of the arc groove 4 , and the extension track bypasses the embedded groove and communicates with the second chamber.

[0009] Optionally, the surface of the pillar forms a contact surface that contacts the inner wall of the cervix; The contact surface forms a number of limit rings; The pillar forms a first air-filled cavity connected to the cavity.

[0010] Optionally, a sealing portion is formed on the surface of the carrier; The sealing portion contacts the inner wall of the first inflation cavity to seal the first cavity.

[0011] Optionally, the carrier forms a second air-filled cavity in communication with the first air-filled cavity; The second inflation cavity is communicated with the injection port.

[0012] Optionally, a partition is fixedly provided at the injection port to separate the injection port into a water injection chamber and an air filling chamber.

[0013] Optionally, it further includes a catheter fixedly connected to the clamping portion; There are two chambers in the catheter, corresponding to the water injection chamber and the air filling chamber respectively; The end of the conduit is provided with a flared opening to correspond to the clamping portion; The conduit forms a positioning groove corresponding to the partition.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. The support body and the carrier can be fitted with the cervix, facilitating subsequent drug application. The design of the spray hole allows the photosensitizer to be applied to the outer surface of the cervical opening by injection. The second chamber can recover excess photosensitizer. This configuration only requires placing the support body on the cervix and applying the drug by injection, which improves the convenience of drug application. 2. The spray hole can also be used to spray physiological saline to clean the outer surface of the cervix before applying the medicine, remove mucus, secretions and other impurities, and effectively improve the treatment effect; 3. The setting of the first inflation cavity can expand the column, effectively improving the tightness between the treatment support and the cervix to prevent it from falling off during treatment; 4. By setting up the second air-filled cavity, the air pressure can be used to deform the support body so as to adjust the position between the inner wall of the arc groove and the outer surface of the cervical os; thus, the position can be adjusted according to the requirements of flushing or applying medicine on the cervical os, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the overall half-section structure of an embodiment of the present application; Figure 3 This is a schematic diagram of the overall bursting bead structure of an embodiment of the present application; Figure 4 Schematic diagram of the installation of the support body and the carrier according to an embodiment of the present application; Figure 5 This is a schematic diagram of the overall half-section structure of the support body of an embodiment of the present application; Figure 6 This is a schematic diagram of the overall half-section structure of the carrier of an embodiment of the present application; Figure 7 yes Figure 5 A partial enlarged view of .

[0016] Figure numerals: 100, treatment support; 101, catheter; 1, support body; 2, column; 3, carrier; 4, arc groove; 5, support part; 6, first chamber; 7, second chamber; 8, embedded groove; 9, opening; 10, clamping part; 11, sealing ring; 12, spray hole; 13, injection port; 14, reflux hole; 15, contact surface; 16, limiting ring; 17, first inflation chamber; 18, second inflation chamber; 19, sealing part; 20, water injection chamber; 21, inflation chamber; 22, cavity; 23, wrapping part. DETAILED DESCRIPTION

[0017] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0018] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0019] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0020] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0021] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0022] The embodiment of the present application discloses a cervical medication treatment support for photodynamic therapy, a cervical medication treatment support 100 for photodynamic therapy, which is placed on the patient's cervix and connected to an external syringe through a catheter 101; it includes: a support body 1, a column 2, and a carrier 3; specifically, the support body 1 is made of silicone and its outer contour is constructed in a bowl shape; due to the characteristics of silicone, the support body 1 can be deformed under the resistance of external force, and can return to its original contour after the external force is lost; wherein, the support body 1 forms a circular arc groove 4 that can cover the cervical os and part of the cervical canal; the circular arc groove 4 forms a column 2 that can be inserted into the cervical os and contact with the inner wall of the internal os of the cervix; the support body 1 can be fixed on the cervix through the contact between the column 2 and the internal os of the cervix.

[0023] Specifically, the carrier 3 is integrally formed of TPU material, used to support the support body 1 to increase the strength of the support body 1 and to form a therapeutic support 100 with the support body 1. This configuration can prevent the support body 1 from being too soft due to the silicone and unable to be placed on the cervix. More specifically, the support body 1 forms a cavity 22 corresponding to the outer contour of the carrier 3. The carrier 3 forms a support portion 5 corresponding to the cavity 22. Specifically, the support portion 5 is consistent with the outer contour of the support body 1. The support portion 5 is inserted into the cavity 22 and divides the internal space of the cavity 22 into a first chamber 6 and a second chamber 7. The first chamber 6 is defined as the area near the arc groove 4, and the second chamber 7 is defined as the area away from the arc groove 4. Specifically, the support portion 5 is embedded in the cavity 22, and the end surface of the support portion 5 is tightly connected to the inner wall of the cavity 22. The inner wall of the cavity 22 near the notch 41 of the arc groove 4 forms an interlocking groove 8. After the end of the support portion 5 is inserted into the interlocking groove 8, the first cavity 6 and the second cavity 7 can be sealed and separated. On the other hand, because the support body 1 is made of silicone, the support portion 5 can be more tightly connected to the interlocking groove 8 after being clamped. Specifically, the support body 1 forms an opening 9 that enters the internal space of the cavity 22; the carrier 3 is located at the opening 9 to form a clamping portion 10; wherein, a wrapping portion is formed on the side of the opening 9 to completely wrap the surface of the clamping portion 10; more specifically, a sealing ring 11 is formed on the surface of the clamping portion 10, and the wrapping portion 23 forms a card groove corresponding to the sealing ring 11; the elasticity of the silicone can make the wrapping portion 23 and the sealing ring 11 in close contact; in this way, the support body 1 and the carrier 3 can be fixedly connected.

[0024] Specifically, the surface of the arc groove 4 forms a spray hole 12 connected to the first chamber 6; wherein, there are a plurality of spray holes 12, and they are arranged in an array along the radial direction and the latitudinal direction of the arc groove 4; more specifically, the clamping portion 10 forms an injection port 13 connected to the first chamber 6, and a first valve is provided at the connection between the first chamber 6 and the injection port 13, and the first valve only allows liquid to enter the first chamber 6 from the injection port 13; it can be understood that by injecting liquid into the injection port 13 through the catheter 101, the liquid can enter the first chamber 6; and then through The spray hole 12 sprays onto the surface of the cervical canal; the inner wall at the notch of the arc groove 4 forms a reflux hole 14 connected to the second chamber 7, and the reflux hole 14 is located on the inner wall of the arc groove 4 and extends along the radial direction of the arc groove 4, and the extension trajectory bypasses the embedded groove 8 and is connected to the second chamber 7; the liquid can flow back to the second chamber 7 through the reflux hole 14, and the second chamber 7 is connected to the injection port 13; and a second valve is provided at the connection point, and the second valve only allows the liquid in the second chamber 7 to flow into the injection port 13; therefore, the piston syringe can be used for injection and aspiration.

[0025] Through the above scheme, when in use, the injection port 13 of the catheter 101 is connected to the piston syringe; physiological saline can be injected into the syringe; when pushing, the physiological saline enters the first chamber 6 through the first valve, and then the spray hole 12 can spray the physiological saline to the cervix, thereby removing impurities such as mucus and secretions adhering to the outer surface of the cervical os; when the piston is pulled, the second chamber 7 forms a negative pressure, so that the physiological saline in the arc groove 4 can enter the second chamber 7 through the reflux hole 14; further, the physiological saline is replaced with a photosensitizer, and the photosensitizer can be sprayed on the outer surface of the cervical os by injection through the above method.

[0026] In another more specific embodiment, a contact surface 15 is formed on the surface of the pillar 2, capable of contacting the inner wall of the internal cervical os. A retaining ring 16 is formed on the surface of the retaining surface 15. Multiple retaining rings 16 are arranged along the axial extension direction of the pillar 2 to enhance the tightness with the cervix. The longitudinal section of the pillar 2 is conical. This structure facilitates the end of the pillar 2 to be inserted into the cervical os. Since the pillar 2 is also made of silicone, discomfort during insertion is reduced. More specifically, the column 2 forms a first air-filled cavity 17 connected to the cavity 22; the carrier 3 forms a second air-filled cavity 18; wherein, the wall thickness of the second air-filled cavity 18 close to the inner wall of the first chamber 6 is specifically 0.5 mm; it can be understood that gas is injected into the first air-filled cavity 17 and the second air-filled cavity 18 through the catheter 101; in this way, the column 2 can be expanded to improve fixation; in addition, due to the expansion of the gas in the second chamber 7, the second air-filled cavity 18 can bulge close to the inner wall of the first chamber 6; the inner wall of the arc groove 4 can be deformed, specifically the inner wall of the arc groove 4 fits against the outer wall of the cervical canal; the tightness is improved; such a setting can adjust the tightness between the support body 1 and the outer surface of the cervical canal.

[0027] Specifically, a sealing portion 19 is formed on the surface of the carrier 3 and extends toward the first plenum chamber 17 at the location of the injection port 13. The sealing portion 19 has a snap ring that engages with the inner wall of the first plenum chamber 17. In this way, the carrier 1 and the carrier 3 are connected at three locations to improve tightness. The sealing portion 19 can contact the inner wall of the first plenum chamber 17 to seal the first chamber 6. A partition is fixedly provided at the injection port 13 to separate the injection port 13 into a water injection chamber 20 and a gas chamber 21. The water injection chamber 20 is in communication with the first chamber 6, and the gas chamber 21 is in communication with the second plenum chamber 18. More specifically, the catheter 101 has two chambers, corresponding to the water injection chamber 20 and the air filling chamber 21 respectively; in this way, liquid can be injected and air can be inflated at the same time, which is convenient for adjusting the tightness between the support body 1 and the cervix when injecting liquid; the end of the catheter 101 forms a flared opening corresponding to the clamping part 10, so that the catheter 101 is tightly connected to the clamping part 10; the catheter 101 also forms a positioning groove corresponding to the partition, and when docking, the partition can be inserted into the positioning groove.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cervical medication tray for photodynamic therapy, placed on the patient's cervix and connected to an external syringe via a catheter; characterized in that: include: The support body has a circular arc groove; A column, arranged in the arc groove; A carrier, fixedly connected to the support body to form the treatment support body; In which, the support body also forms a cavity; the carrier is arranged in the cavity so that the cavity forms a first cavity and a second cavity; the surface portion of the arc groove penetrates into the internal space of the first cavity to form a spray hole; the surface portion of the arc groove penetrates into the internal space of the second cavity to form a reflux hole; the side of the carrier away from the column forms a clamping portion, and the clamping portion forms an injection cavity connected to the second cavity.

2. The cervical medication treatment support for photodynamic therapy according to claim 1, characterized in that: The support body is integrally formed of silicone and has an outer contour in a bowl shape.

3. The cervical medication treatment support for photodynamic therapy according to claim 1, characterized in that: The carrier forms a support portion corresponding to the cavity; The support portion is embedded in the cavity and the end portion is tightly connected to the inner wall of the cavity; Wherein, the support portion is integrally formed of TPU.

4. The cervical medication treatment support for photodynamic therapy according to claim 3, characterized in that: The support body forms an opening leading to the interior space of the cavity; An inner wall of the cavity near the notch of the arc groove 4 forms an embedded groove corresponding to the side of the carrier; The side edges of the opening form a wrapping portion to completely wrap the surface of the clamping portion.

5. The cervical medication treatment support for photodynamic therapy according to claim 4, characterized in that: The carrier is located in the inner space of the cavity; The cavity space close to the arc groove 4 is defined as the first chamber; The cavity space away from the arc groove 4 is defined as the second cavity; The reflux hole is located on the inner wall of the arc groove 4 and extends along the radial direction of the arc groove 4 , and the extension track bypasses the embedded groove and communicates with the second chamber.

6. The cervical medication treatment support for photodynamic therapy according to claim 1, characterized in that: The surface of the column forms a contact surface that contacts the inner wall of the cervix; The abutment surface forms a plurality of limiting rings; Wherein, the pillar forms a first inflation cavity communicated with the cavity.

7. The cervical medication treatment support for photodynamic therapy according to claim 6, characterized in that: A sealing portion is formed on the surface of the carrier; The sealing portion contacts the inner wall of the first air-filled cavity to seal the first cavity.

8. The cervical medication treatment support for photodynamic therapy according to claim 7, characterized in that: The carrier forms a second air-filled cavity in communication with the first air-filled cavity; The second inflation cavity is communicated with the injection port.

9. The cervical medication treatment support for photodynamic therapy according to claim 8, characterized in that: A partition is fixedly provided on the injection port to separate the injection port into a water injection cavity and an air filling cavity.

10. A cervical medication treatment support for photodynamic therapy according to any one of claims 1 to 9, characterized in that: Also included is a catheter fixedly connected to the clamping portion; The conduit has two chambers, corresponding to the water injection chamber and the air filling chamber respectively; The end of the conduit is provided with a flared opening to correspond to the clamping portion; The conduit forms a positioning groove corresponding to the partition.

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