Protective sleeve and output device applicable to laser side output

Abstract

The present invention discloses a protective sleeve and an output device suitable for side output of laser. The sleeve includes a first sleeve, a second sleeve and a plugging member; the second sleeve is sleeved outside the first sleeve, and a light-shielding portion is provided between the first sleeve and the second sleeve; the ends of the first sleeve and the second sleeve are fixedly connected to the plugging member. By arranging a first protective sleeve and a second protective sleeve outside the cylindrical optical fiber, and arranging a light-shielding portion on the protective sleeve, the laser emitted axially by the cylindrical optical fiber is blocked by the light-shielding portion, the radiation range of the laser is reduced, the trauma suffered by the surrounding normal tissues is reduced, and precise treatment is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a protective sleeve and an output device suitable for lateral laser output. Background Art

[0002] In minimally invasive tumor treatment, a cylindrical optical fiber is often inserted into a patient's body to form a relatively large optical fiber output surface. After introducing the optical fiber into the lesion, the lesion is irradiated or treated. However, when treating or irradiating the lesion, for a relatively small lesion, the irradiation surface of the cylindrical optical fiber is very large and the light intensity is also very high, which instead affects other normal tissues around the lesion and is likely to cause an enlarged wound surface. Therefore, for the case of a relatively small lesion, it is necessary to reduce the irradiation surface while maintaining the original light intensity to achieve precise treatment. Summary of the Invention

[0003] Therefore, the purpose of the present invention is to provide a protective sleeve and an output device suitable for lateral laser output. By providing a first protective sleeve and a second protective sleeve outside the cylindrical optical fiber, and providing a light-shielding portion on the protective sleeve, the laser emitted axially by the cylindrical optical fiber is blocked by the light-shielding portion, reducing the radiation range of the laser and reducing the trauma to the surrounding normal tissues, thereby achieving precise treatment.

[0004] To achieve the above purpose, the present application provides a protective sleeve suitable for lateral laser output, comprising a first sleeve, a second sleeve and a sealing member; a cylindrical optical fiber is provided inside the first sleeve, the second sleeve is sleeved outside the first sleeve, and a light-shielding portion is provided between the first sleeve and the second sleeve; the ends of the first sleeve and the second sleeve are fixedly connected to the sealing member.

[0005] Further preferably, the light-shielding portion is a light-shielding coating sprayed on the outer wall of the first sleeve or the inner wall of the second sleeve.

[0006] Further preferably, the light-shielding portion is a light-shielding sheet, and the light-shielding sheet is located between the first sleeve and the second sleeve.

[0007] Further preferably, the ends of the first sleeve and the second sleeve are threadedly connected to the sealing member, and the light-shielding sheet is clamped and fixed between the first sleeve and the second sleeve.

[0008] Further preferably, both the first sleeve and the second sleeve are made of a stretchable material, the diameter of the second sleeve is larger than that of the first sleeve, and the diameter of the thread of the sealing member plus the wall thickness of the first sleeve is larger than the inner diameter of the second sleeve.

[0009] Further preferably, medical glue is sprayed at the connection between the ends of the first sleeve and the second sleeve and the sealing member.

[0010] The present invention also provides a laser side output device, which includes a protective sleeve, and further includes a laser, a universal interface, and a cylindrical optical fiber; a universal interface is provided at the output end of the laser, the universal interface is connected to the cylindrical optical fiber, and the cylindrical optical fiber is arranged in the first sleeve of the protective sleeve; the laser is used to output an optical signal; the cylindrical optical fiber is used to transmit the optical signal.

[0011] The protective sleeve and output device applicable to laser side output disclosed in this application, compared with the prior art, have at least the following advantages:

[0012] 1. By arranging a first protective sleeve and a second protective sleeve outside the cylindrical optical fiber, and arranging a light-shielding part on the protective sleeve, the laser emitted axially by the cylindrical optical fiber is blocked by the light-shielding part, reducing the radiation range of the laser and the trauma to the surrounding normal tissues, and realizing precise treatment.

[0013] 2. The light-shielding part is arranged as a filter, and the filter is clamped between the first sleeve and the second sleeve, which is convenient for installation. At the same time, it is convenient to adjust the light-shielding sheet according to the size and shape of the lesion. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a protective sleeve applicable to laser side output of the present invention.

[0015] Figure 2 It is a schematic structure of the laser side output device of the present invention.

[0016] In the figure:

[0017] 1. First sleeve; 2. Second sleeve; 3. Sealing member; 4. Light-shielding part; 5. Cylindrical optical fiber; 6. Laser; 7. Universal interface. Detailed Embodiments

[0018] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0019] As shown in Figure 1, a protective sleeve applicable to laser side output provided by an embodiment of the present invention on the one hand includes a first sleeve 1, a second sleeve 2, and a sealing member 3; when in use, the cylindrical optical fiber extends into the first sleeve 1, the second sleeve 2 is sleeved outside the first sleeve 1, and a light-shielding part 4 is arranged between the first sleeve 1 and the second sleeve 2; the width of the light-shielding part 4 generally does not exceed half of the radial circumference of the first sleeve 1; the ends of the first sleeve 1 and the second sleeve 2 are fixedly connected to the sealing member 3.

[0020] The light-shielding part 4 is a light-shielding coating sprayed on the outer wall of the first sleeve 1 or the inner wall of the second sleeve 2.

[0021] The light-shielding part 4 is a light-shielding sheet, and the light-shielding sheet is located between the first sleeve 1 and the second sleeve 2.

[0022] The ends of the first sleeve 1 and the second sleeve 2 are threadedly connected to the sealing member 3, and the light-shielding sheet is clamped and fixed between the first sleeve 1 and the second sleeve 2.

[0023] Both the first sleeve 1 and the second sleeve 2 are made of extensible materials. The diameter of the second sleeve 2 is larger than that of the first sleeve 1, and the diameter of the thread of the sealing member 3 is larger than that of the second sleeve 2. In this embodiment, the sealing member can be selected as a screw. Place the light-shielding sheet between the first sleeve and the second sleeve, and then screw the sealing member into the end of the first sleeve. Since the diameter of the thread plus the wall thickness of the first sleeve is larger than the inner diameter of the second sleeve, during the screwing process of the sealing member, the thread of the sealing member expands the ends of the first sleeve and the second sleeve. Therefore, the light-shielding sheet will be squeezed and clamped between the two sleeves. When the sealing member is fixed to the end of the sleeve, the fixation of the light-shielding sheet is realized.

[0024] Medical glue is sprayed at the connection between the ends of the first sleeve 1 and the second sleeve 2 and the sealing member 3. In order to avoid the siphon effect of the body fluid caused by the threaded part of the sealing member entering the human body, therefore, UV medical glue is used to fix the sealing member to the ends of the first sleeve and the second sleeve, which not only avoids the siphon effect but also strengthens the sealing member.

[0025] As Figure 2 shown, the present invention also provides a laser side output device, which includes the above-mentioned protective sleeve, and also includes a laser 6, a universal interface 7, and a cylindrical optical fiber 5; a universal interface is provided at the output end of the laser, the universal interface is connected to the cylindrical optical fiber, and the cylindrical optical fiber is arranged in the first sleeve 1 of the protective sleeve; the laser is used to output optical signals; the cylindrical optical fiber is used to transmit optical signals. After the laser emitted by the laser passes through the universal interface, a laser knife for detecting or treating a lesion is formed by the cylindrical optical fiber. Using the protective sleeve of the above embodiment, the laser emitted from the other side of the cylindrical optical fiber can be blocked, avoiding damage to the healthy tissues around the lesion.

[0026] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A protective sleeve applicable to side output of laser, characterized in that, It includes a first sleeve, a second sleeve and a sealing member; the second sleeve is sleeved outside the first sleeve, and a light-shielding portion is provided between the first sleeve and the second sleeve; the ends of the first sleeve and the second sleeve are fixedly connected to the sealing member, the diameter of the second sleeve is larger than that of the first sleeve, and the sum of the diameter of the thread of the sealing member and the wall thickness of the first sleeve is larger than the inner diameter of the second sleeve; the width of the light-shielding portion does not exceed half of the radial circumference of the first sleeve, and the light-shielding portion is used to block the laser emitted axially by the cylindrical optical fiber and reduce the radiation range of the laser.

2. The protective sleeve applicable to the side output of the laser according to claim 1, wherein The light-shielding portion is a light-shielding coating sprayed on the outer wall of the first sleeve or the inner wall of the second sleeve.

3. The protective sleeve applicable to the side output of the laser according to claim 1, characterized in that, The light-shielding portion is a light-shielding sheet, and the light-shielding sheet is located between the first sleeve and the second sleeve.

4. The protective sleeve applicable to the side output of the laser according to claim 3, wherein, The ends of the first sleeve and the second sleeve are threadedly connected to the sealing member, and the light-shielding sheet is clamped and fixed between the first sleeve and the second sleeve.

5. The protective sleeve applicable to the lateral output of the laser according to claim 3, characterized in that, Both the first sleeve and the second sleeve are made of malleable materials.

6. The protective sleeve applicable to the side output of the laser according to claim 1, wherein, UV medical glue is sprayed at the connection between the ends of the first sleeve and the second sleeve and the sealing member.

7. A laser side output device, characterized in that, It includes the protective sleeve according to any one of claims 1-6, and also includes a laser, a universal interface and a cylindrical optical fiber; a universal interface is provided at the output end of the laser, the output end of the universal interface is connected to the cylindrical optical fiber, and the cylindrical optical fiber is arranged in the first sleeve of the protective sleeve; The laser is used to output an optical signal; the cylindrical optical fiber is used to transmit the optical signal.

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