CN217187494U - Gastric cavity photodynamic therapy optical fiber with fixed air bag and adjustable shading sheath - Google Patents
Gastric cavity photodynamic therapy optical fiber with fixed air bag and adjustable shading sheath Download PDFInfo
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- CN217187494U CN217187494U CN202122754839.2U CN202122754839U CN217187494U CN 217187494 U CN217187494 U CN 217187494U CN 202122754839 U CN202122754839 U CN 202122754839U CN 217187494 U CN217187494 U CN 217187494U
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- photodynamic therapy
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Abstract
The utility model relates to a gastric cavity photodynamic therapy optical fiber with a fixed air bag and an adjustable shading sheath, belonging to the technical field of medical instruments. The optical fiber for the photodynamic therapy in the gastric cavity comprises a transparent sheath and an optical fiber arranged in the transparent sheath, wherein the head end of the transparent sheath is closed and stuck on the optical fiber; the fixed air bag is in a calabash shape, and the opening end of the fixed air bag is connected with the tail end of the transparent sheath in an adhesion manner; the shading sheath is wrapped outside the transparent sheath and can slide outside the transparent sheath. The utility model has the advantages of it is following: 1. a gourd-shaped air bag is added at the head of the optical fiber applied at present, so that the head of the optical fiber can be fixed at the pylorus of the stomach, and the effects of fixing and stabilizing the optical fiber are achieved. 2. And a sheath with an adjustable position is added outside the optical fiber so as to achieve the purpose of adjusting the illumination range.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to take gastric cavity interior photodynamic therapy optic fibre of fixed gasbag and adjustable shading sheath.
Background
Photodynamic therapy (PDT), also referred to as "photodynamic" for short, is a new method for treating tumors developed in the 70's 20 th century, which effectively damages and kills tissues such as local tumor cells, abnormal blood vessels and the like through physical methods, can be performed simultaneously with traditional operations, radiotherapy and chemotherapy, and has the advantages of safety, effectiveness, small trauma and high repeatability.
The basic principle of photodynamic therapy is that after the photosensitizer enters into the body, the photosensitizer can be enriched in vascular endothelial cells, tumors and other tissues. At this time, the laser with specific wavelength irradiates the pathological part, which can induce strong photochemical reaction to generate a large amount of active oxidation products, such as singlet oxygen (singlet oxygen), etc., and emit rays to destroy the tumor tissue, resulting in apoptosis and autophagy of cell residues. These rays have a short range of action and are highly active, so that the range of action is limited to the irradiation site.
At present, the optical fiber for photodynamic therapy in the gastric cavity lacks a fixing device, and the irradiation length and the irradiation range can not be regulated, so that the target lesion part can not be irradiated in a better targeted manner.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to disclose a photodynamic therapy optical fiber with a fixed balloon and an adjustable light-shielding sheath in a gastric cavity.
The utility model aims at realizing through the following technical scheme:
the utility model provides a gastric cavity interior photodynamic therapy optic fibre of fixed gasbag in area and adjustable shading sheath, includes transparent sheath and the optic fibre of setting in transparent sheath, and the head end of transparent sheath is sealed and is pasted on optic fibre, wherein: the optical fiber with the fixed air bag and the adjustable shading sheath for the photodynamic therapy in the gastric cavity further comprises the shading sheath and the fixed air bag; the fixed air bag is in a calabash shape, and the opening end of the fixed air bag is connected with the tail end of the transparent sheath in an adhesion manner; the shading sheath is wrapped outside the transparent sheath and can slide outside the transparent sheath.
The gastric cavity internal photodynamic therapy optical fiber with the fixed air bag and the adjustable shading sheath in the technical scheme is characterized in that: the head end of the transparent sheath is provided with an air interface.
The utility model discloses following beneficial effect has:
1. a gourd-shaped air bag is added at the head of the optical fiber applied at present, so that the head of the optical fiber can be fixed at the pylorus of the stomach, and the effects of fixing and stabilizing the optical fiber are achieved.
2. And a sheath capable of adjusting the position is added outside the optical fiber so as to achieve the purpose of adjusting the illumination range.
Description of the drawings:
1. fig. 1 is a structural schematic diagram of a photodynamic therapy optical fiber in a gastric cavity with a fixed air bag and an adjustable shading sheath.
2. FIG. 2 is a cross-sectional view of an intra-gastric cavity photodynamic therapy fiber with a fixed balloon and an adjustable light-blocking sheath.
Description of the figure numbers:
1. optical fiber, 2, transparent sheath, 3, fixed air bag, 4, air flue, 5, shading sheath, 6 and air interface.
The specific implementation mode is as follows:
in order to facilitate understanding of the technical solutions of the present invention, the structure and application of the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example 1:a gastric cavity photodynamic therapy optical fiber with a fixed air bag and an adjustable shading sheath:
as shown in fig. 1 and fig. 2, a gastric cavity photodynamic therapy optical fiber with a fixed air bag and an adjustable shading sheath comprises a transparent sheath 2 and an optical fiber 1 arranged in the transparent sheath, wherein the head end of the transparent sheath 2 is closed and stuck on the optical fiber 1, and the head end of the optical fiber 1 is connected with a light source;
the optical fiber for the photodynamic therapy in the gastric cavity with the fixed air bag and the adjustable shading sheath also comprises a shading sheath 5 and a fixed air bag 3; the fixed air bag 3 is a calabash-shaped air bag, and the opening end of the fixed air bag 3 is connected with the tail end of the transparent sheath 2 in an adhesion manner; the shading sheath 5 is wrapped outside the transparent sheath 2 and can slide outside the transparent sheath 2; the head end of the transparent sheath 2 is provided with an air interface 6, and the air interface 6 is externally connected with an injector to inject and exhaust air into the fixed air bag 3 through an air passage 4.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and those skilled in the art can make modifications, improvements and evolutions equivalent to those of the present invention without departing from the technical scope of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes made to the above embodiments according to the essential technology of the present invention still belong to the scope of the technical solution of the present invention.
Claims (2)
1. The utility model provides a gastric cavity interior photodynamic therapy optic fibre of fixed gasbag in area and adjustable shading sheath, includes transparent sheath and the optic fibre of setting in transparent sheath, and the head end of transparent sheath is sealed and is pasted on optic fibre, its characterized in that: the optical fiber with the fixed air bag and the adjustable shading sheath for the photodynamic therapy in the gastric cavity further comprises a shading sheath and a fixed air bag; the fixed air bag is in a calabash shape, and the opening end of the fixed air bag is connected with the tail end of the transparent sheath in an adhesion manner; the shading sheath is wrapped outside the transparent sheath and can slide outside the transparent sheath.
2. The fiber for photodynamic therapy in the gastric cavity with the fixed balloon and the adjustable light-shielding sheath according to claim 1, wherein: the head end of the transparent sheath is provided with an air interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754839.2U CN217187494U (en) | 2021-11-11 | 2021-11-11 | Gastric cavity photodynamic therapy optical fiber with fixed air bag and adjustable shading sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754839.2U CN217187494U (en) | 2021-11-11 | 2021-11-11 | Gastric cavity photodynamic therapy optical fiber with fixed air bag and adjustable shading sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217187494U true CN217187494U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122754839.2U Active CN217187494U (en) | 2021-11-11 | 2021-11-11 | Gastric cavity photodynamic therapy optical fiber with fixed air bag and adjustable shading sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217187494U (en) |
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2021
- 2021-11-11 CN CN202122754839.2U patent/CN217187494U/en active Active
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