CN214912739U - Light guide rod for photodynamic therapy and photodynamic therapy apparatus - Google Patents
Light guide rod for photodynamic therapy and photodynamic therapy apparatus Download PDFInfo
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- CN214912739U CN214912739U CN202120619251.3U CN202120619251U CN214912739U CN 214912739 U CN214912739 U CN 214912739U CN 202120619251 U CN202120619251 U CN 202120619251U CN 214912739 U CN214912739 U CN 214912739U
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- photodynamic therapy
- optical fiber
- limiting ring
- locking cap
- light
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Abstract
The utility model relates to the technical field of photodynamic therapy, in particular to a light guide bar for photodynamic therapy and a photodynamic therapy apparatus; the utility model discloses a leaded light stick for photodynamic therapy includes: the optical fiber fixing device comprises a main tube, a fixing sleeve and a locking cap, wherein one end of the main tube is provided with a limiting ring and the locking cap for fixing an optical fiber, the locking cap is screwed on one end of the main tube, the limiting ring is arranged in the locking cap, and the locking cap rotates to enable the inner diameter of the limiting ring to shrink and lock the optical fiber; the light transmitting tube is coaxially arranged at the other end of the main tube; the conical reflector is arranged in the light transmitting tube, the conical reflector and the optical fiber are coaxially arranged, and the conical reflecting surface of the conical reflector is opposite to the optical fiber. When the optical fiber type therapeutic apparatus is used, therapeutic light transmitted by the optical fiber is reflected by the conical reflector, and the therapeutic light is emitted along the radial direction of the optical fiber, so that the therapeutic apparatus can conveniently irradiate the side wall of a vagina or a cervical orifice, and the therapeutic effect of photodynamic therapy is improved.
Description
Technical Field
The utility model relates to a photodynamic treatment technical field, concretely relates to leaded light stick and photodynamic therapeutic instrument for photodynamic therapy.
Background
Photodynamic Therapy (PDT) is a new technology for disease diagnosis and treatment using photodynamic effects. The action is based on photodynamic effect, firstly, target tissue cells are marked by using photosensitive substances, and then after visible light with proper wavelength is locally irradiated, the photosensitizer is activated to generate photosensitive effect at the marked position to kill the target cells.
The photodynamic therapy device is a photodynamic therapy device, and the existing photodynamic therapy device generally irradiates target tissues by transmitting treatment light generated by a host machine through optical fibers. The therapeutic light enters from one end of the optical fiber and exits from the end face at the other end. When the photodynamic therapeutic apparatus is used for treating diseases related to vagina and cervix, the treatment light is transmitted from the end face of the optical fiber, so that the treatment light is difficult to irradiate the side wall of the vagina, and the optical fiber is required to be bent for irradiation. The smaller cervical region cannot be irradiated by bending the optical fiber, and thus it is difficult to obtain a good therapeutic effect.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a light guide bar for photodynamic therapy and a photodynamic therapy apparatus; the optical fiber can emit the therapeutic light along the radial direction of the optical fiber, so that the therapeutic light can conveniently irradiate the side wall of the vagina or the cervical orifice, and the therapeutic effect of photodynamic therapy is improved.
In order to achieve the above object, the light guide rod for photodynamic therapy of the present invention comprises:
the optical fiber fixing device comprises a main tube, a fixing device and a fixing device, wherein a limiting ring and a locking cap for fixing an optical fiber are arranged at one end of the main tube, the locking cap is screwed on one end of the main tube, the limiting ring is arranged in the locking cap, and the locking cap rotates to enable the inner diameter of the limiting ring to shrink and lock the optical fiber;
the light transmitting tube is coaxially arranged at the other end of the main tube;
the conical reflector is arranged in the light transmitting tube, the conical reflector and the optical fiber are coaxially arranged, and the conical reflecting surface of the conical reflector is opposite to the optical fiber.
According to the light guide rod for photodynamic therapy in the technical scheme, when the light guide rod is used, the optical fiber of the photodynamic therapy instrument is inserted into the main tube, and the optical fiber is locked through the limiting ring and the locking cap, so that the optical fiber is prevented from slipping; the treatment light of optic fibre conduction spreads from the lateral wall of printing opacity pipe a week through conical mirror reflection to treatment light jets out along the radial direction of optic fibre, and the lateral wall of the vagina or cervical orifice of shining that can be convenient improves the therapeutic effect of photodynamic treatment.
In one embodiment, the limiting ring is made of elastic material, the outer side wall of the limiting ring is tapered, and the large end of the limiting ring is abutted against the end face of the main pipe; the inner wall of the locking cap is provided with a conical pushing surface matched with the outer wall of the limiting ring, and the locking cap rotates to press the outer wall of the limiting ring through the pushing surface to enable the inner diameter of the limiting ring to shrink.
During the use, wear to establish optic fibre in spacing ring, through locking cap locking optic fibre that can be quick, prevent optic fibre slippage when using. Meanwhile, the optical fiber is convenient to take out after use.
In one embodiment, the cone angle of the conical reflector is 90 °.
The therapeutic light can be transmitted out along the axial ray direction perpendicular to the conical reflector, so that the irradiation area can be conveniently controlled.
In one embodiment, a guide head is further arranged at one end of the light-transmitting tube, which is far away from the main tube, and the front end of the guide head is hemispherical.
The light guide rod for photodynamic therapy is inserted into the vagina or the cervix by the guide head, so that the damage to the vagina or the cervix is reduced.
In one embodiment, the main tube is further provided with a transparent balloon, and the light-transmitting tube is arranged in the balloon; the main body tube is also provided with a connecting joint communicated with the saccule.
The balloon inflation can prop open the irradiated area, so that the irradiation of the therapeutic light is facilitated.
In one embodiment, a valve is further arranged between the balloon and the connecting joint.
The opening and closing of the valve facilitate the control of the flow of the inflation medium into or out of the balloon to control the size of the balloon.
The photodynamic therapy apparatus of the utility model comprises the light guide rod for photodynamic therapy in any one of the above embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
Fig. 1 is a front sectional view of a light guide rod for photodynamic therapy according to an embodiment of the present invention;
FIG. 2 is an enlarged view A of the light guide wand of FIG. 1 for photodynamic therapy;
FIG. 3 is a front view of the conical reflector shown in FIG. 1;
reference numerals:
1-light guide rod for photodynamic therapy, 11-main tube, 111-balloon, 112-connecting joint, 113-fluid channel, 114-valve, 12-spacing ring, 13-locking cap, 131-pushing surface, 14-light transmission tube, 15-conical reflector, 16-guide head and 2-optical fiber.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Referring to fig. 1 to 3, a light guide rod for photodynamic therapy in one embodiment includes: the main body tube 11 is provided with a limiting ring 12 and a locking cap 13 which are used for fixing the optical fiber 2, and the main body tube 11 can enable the therapeutic light to be emitted along the radial direction of the optical fiber, so that the vaginal or cervical orifice side wall can be conveniently irradiated, and the therapeutic effect of photodynamic therapy can be improved.
Specifically, one end of the main tube 11 is provided with a limiting ring 12 and a locking cap 13 for fixing the optical fiber 2. The locking cap 13 is threadedly mounted on one end of the main tube 11. The retainer ring 12 is disposed within the locking cap 13. The locking cap 13 is rotated to shrink the inner diameter of the stop collar 12 to lock the optical fiber 2. The front end of the locking cap 13 is provided with internal threads. The rear end of the locking cap 13 is open to facilitate the passage of the optical fiber. The stop collar 12 may be made of a rubber material. The main tube 11 can be made of medical plastics such as polyvinyl chloride and polypropylene. In one embodiment, the stop collar 12 is made of an elastic material. The outer side wall of the limiting ring 12 is tapered, and the large end of the limiting ring 12 is abutted against the end face of the main body pipe 11. The inner wall of the locking cap 13 is provided with a conical pushing surface 131 matched with the outer wall of the limiting ring 12. The locking cap 13 can be rotated to contract the inner diameter of the retainer ring 12 by pressing the outer wall of the retainer ring 12 by the pressing surface 131. Specifically, the pushing surface 131 is disposed on the inner wall of the rear end of the locking cap 13. The small end of the pushing surface 131 faces the rear end of the locking cap 13. A tool withdrawal groove is arranged between the pushing surface 131 and the internal thread section at the front end of the locking cap 13, so that the screwing length and position of the locking cap 13 and the main tube 11 can be conveniently adjusted. During the use, wear to establish optic fibre 2 in spacing ring 12, through locking cap 13 locking optic fibre 2 that can be quick, prevent optic fibre 2 slippage when using. Meanwhile, the optical fiber 2 is convenient to take out after use.
The light-transmitting tube 14 is coaxially disposed at the other end of the main tube 11. The rear end of the light transmission tube 14 is connected to the front end of the main tube 11. The light-transmitting tube 14 has an outer diameter equal to that of the main tube 11. The light-transmitting tube 14 is made of a highly transparent polymer such as polystyrene, polymethyl methacrylate, or polycarbonate. The light-transmitting tube 14 and the main tube 11 can be connected by screw connection, adhesion, laser welding, or the like.
A conical reflector 15 is arranged inside the light-transmitting tube 14. The conical reflector 15 is arranged coaxially with the optical fiber 2, and the conical reflecting surface of the conical reflector 15 faces the optical fiber 2. Specifically, a conical reflector 15 is provided at the front end of the light-transmitting tube 14. The treatment light is reflected by the conical reflector 15 and then transmitted along the radial direction of the conical reflector 15 along the circumferential direction of the conical reflector 15, so as to form annular light which diverges outwards. In one embodiment, the cone angle of the conical reflector 15 is 90 °. The therapeutic light can be transmitted along the direction perpendicular to the axis of the conical reflector 15, so that the irradiation area can be conveniently controlled.
In one embodiment, the end of the light-transmitting tube 14 away from the main tube 11 is further provided with a guide head 16. The leading end of the guide head 16 is formed in a hemispherical shape. The guide head 16 may be made of soft medical materials such as latex, silicone, other rubbers, etc. The light guide rod 1 for photodynamic therapy is inserted into the vagina or cervix via the guide head 16, reducing damage to the vagina or cervix. In one embodiment, the main tube 11 is further provided with a transparent balloon 111. Light-transmitting tube 14 is disposed within balloon 111. The main tube 11 is also provided with a connecting joint 112 which is communicated with the balloon 111. Specifically, the balloon 111 communicates with the connection joint 112 through a fluid passage 113 formed in the wall of the main tube 11. In one embodiment, the balloon 111 is in a ring-shaped configuration, one end of the balloon 111 is disposed on the main tube 11, and the other end of the balloon 111 is connected to the guide head 16. Light-transmitting tube 14 is encased within balloon 111. When in use, the balloon is inflated by injecting an inflation medium such as sterile air from the connecting joint. The balloon 111 is inflated to expand the irradiated area, so that the irradiation of the therapeutic light is facilitated. In one embodiment, a valve 114 is further disposed between the balloon 111 and the connection joint 112. Opening and closing of valve 114 facilitates control of the flow of inflation medium into or out of balloon 111 to control the size of balloon 111.
The photodynamic therapy device of an embodiment comprises the light guide rod for photodynamic therapy of any one of the above embodiments.
According to the light guide rod 1 for photodynamic therapy in the technical scheme, when the light guide rod is used, the optical fiber 2 of the photodynamic therapy instrument is inserted into the main tube 11, and the optical fiber 2 is locked through the limiting ring 12 and the locking cap 13, so that the optical fiber 2 is prevented from slipping; the treatment light transmitted by the optical fiber 2 is reflected by the conical reflector 15 and is transmitted out from the side wall of the circumference of the light transmission tube 14, so that the treatment light is emitted along the radial direction of the optical fiber 2, the side wall of the vagina or the cervical orifice can be conveniently irradiated, and the treatment effect of photodynamic treatment is improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. A light guide wand for photodynamic therapy, comprising:
the optical fiber fixing device comprises a main tube, a fixing device and a fixing device, wherein a limiting ring and a locking cap for fixing an optical fiber are arranged at one end of the main tube, the locking cap is screwed on one end of the main tube, the limiting ring is arranged in the locking cap, and the locking cap rotates to enable the inner diameter of the limiting ring to shrink and lock the optical fiber;
the light transmitting tube is coaxially arranged at the other end of the main tube;
the conical reflector is arranged in the light transmitting tube, the conical reflector and the optical fiber are coaxially arranged, and the conical reflecting surface of the conical reflector is opposite to the optical fiber.
2. The light guide rod for photodynamic therapy according to claim 1, wherein the limiting ring is made of an elastic material, the outer side wall of the limiting ring is tapered, and the large end of the limiting ring abuts against the end surface of the main tube; the inner wall of the locking cap is provided with a conical pushing surface matched with the outer wall of the limiting ring, and the locking cap rotates to press the outer wall of the limiting ring through the pushing surface to enable the inner diameter of the limiting ring to shrink.
3. The light guide wand for photodynamic therapy according to claim 1, wherein the cone angle of the conical reflector is 90 °.
4. The light guide rod for photodynamic therapy according to claim 1, wherein a guide head is further arranged at one end of the light transmission tube, which is far away from the main tube, and the front end of the guide head is hemispherical.
5. The light guide rod for photodynamic therapy according to claim 4, wherein a transparent balloon is further arranged on the main tube, and the light transmission tube is arranged in the balloon; the main body tube is also provided with a connecting joint communicated with the saccule.
6. The light guide rod for photodynamic therapy according to claim 5, wherein a valve is further provided between the balloon and the connection joint.
7. A photodynamic therapy device comprising a light guiding wand for photodynamic therapy according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120619251.3U CN214912739U (en) | 2021-03-26 | 2021-03-26 | Light guide rod for photodynamic therapy and photodynamic therapy apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120619251.3U CN214912739U (en) | 2021-03-26 | 2021-03-26 | Light guide rod for photodynamic therapy and photodynamic therapy apparatus |
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| Publication Number | Publication Date |
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| CN214912739U true CN214912739U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120619251.3U Active CN214912739U (en) | 2021-03-26 | 2021-03-26 | Light guide rod for photodynamic therapy and photodynamic therapy apparatus |
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| CN (1) | CN214912739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451866A (en) * | 2022-01-30 | 2022-05-10 | 北京理工大学 | Diagnosis and treatment system for early cancer in cervical canal and working method thereof |
-
2021
- 2021-03-26 CN CN202120619251.3U patent/CN214912739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451866A (en) * | 2022-01-30 | 2022-05-10 | 北京理工大学 | Diagnosis and treatment system for early cancer in cervical canal and working method thereof |
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