Loop ligator

Abstract

The utility model discloses a kind of sheath ligation anastomat gun barrels, it is related to anastomat technical field, comprising: gun barrel main body, the upper top of the gun barrel main body is equipped with long strip light transmission cavity, the rear end of the light transmission cavity is provided with light source assembly cavity, external light source is installed in the inside of the light source assembly cavity, the inside of the light transmission cavity is installed with beam splitter assembly, the light source of the external light source and the light inlet of beam splitter assembly are communicated, the front end of the gun barrel main body is installed with light emitting component. Solve the existing sheath ligation anastomat gun barrel when using, its external light source position is located at the outside of gun barrel front end, this structure needs to be inserted into to the perianal position with gun barrel front end, leading to user unable to manually operate adjustment, also easy to touch around hemorrhoidal nodule in the process of insertion, low safety, the problem that the range of light illumination also exists limitation.

Description

Technical Field

[0001] This utility model relates to the field of anastomosis device technology, specifically to a ligation anastomosis device barrel. Background Technology

[0002] Hemorrhoid banding is the best treatment for hemorrhoids. It uses the banding head of a banding device to band a certain amount of mucosa and submucosal tissue above the hemorrhoid, thereby lifting and repositioning the drooping anal cushions and drawing them into the banding head, blocking the blood supply to the hemorrhoids, thus causing the hemorrhoids to shrink and achieving the therapeutic goal.

[0003] The announcement number is CN215079187U, entitled "A Novel Band-Appointment Stapler Barrel". It includes a barrel, with a suction head connected to the left end of the barrel via a hemorrhoid suction tube. The suction head is equipped with multiple sets of elastic cords. A groove is formed on the upper part of the circumferential surface of the hemorrhoid suction tube. A snap-fit ​​component is fixed to the right end of the hemorrhoid suction tube, and an external light source is snapped into the snap-fit ​​component. A control switch is installed on the external light source. Multiple diffusers are installed on the inner wall of the right end of the groove, and all diffusers are connected to the snap-fit ​​component via light guides. The entire device, by changing the material properties of common band-appointment stapler barrels, allows the light source to travel a longer distance without attenuating its illuminance. This achieves surgical illumination without increasing the complexity of surgical instruments, balancing a clear surgical field with surgical simplification.

[0004] The existing ligation stapler gun barrel has an external light source located outside the front end of the barrel during use. This structure requires the barrel to be inserted to the perianal area, making it impossible for the user to manually adjust it. It also makes it easy to touch the area around the hemorrhoids during insertion, resulting in low safety and limited illumination range. Therefore, it does not meet the current needs, and a new ligation stapler gun barrel is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a ligation stapler barrel to solve the problems mentioned in the background art. When using the existing ligation stapler barrel, the external light source is located outside the front end of the barrel. This structure needs to be inserted with the front end of the barrel to the perianal position, which makes it impossible for the user to manually operate and adjust it. It is also easy to touch the perianal area of ​​hemorrhoids during insertion, resulting in low safety and limited illumination range.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ligation anastomosis device barrel, comprising: a barrel body, an elongated light transmission cavity formed at the top of the barrel body, a light source assembly cavity at the rear end of the light transmission cavity, an external light source installed inside the light source assembly cavity, a beam splitting assembly installed inside the light transmission cavity, the light source output of the external light source communicating with the light inlet of the beam splitting assembly, and a light output assembly installed at the front end of the barrel body.

[0007] Preferably, the beam splitting assembly includes a beam splitter combined with an external light source, and the front end of the beam splitter is equipped with a plurality of first flexible fiber bundles and second flexible fiber bundles.

[0008] Preferably, the light-emitting component includes an assembly groove, in which a light guide diffuser plate is installed. The light-emitting end of the first flexible fiber bundle extends to the light guide diffuser plate. An outer cover is installed at the front end of the light guide diffuser plate. A plurality of annularly spaced light-emitting cavities are opened on the front end face of the outer cover. A lens is installed at the light-emitting port of each light-emitting cavity.

[0009] Preferably, the outer cover has external threads on its side wall, and the outer cover is threadedly connected to the assembly groove through the external threads.

[0010] Preferably, a cover plate is installed on the top of the light transmission cavity, and a break is provided at one end of the upper surface of the cover plate.

[0011] Preferably, the upper surface of the cover plate is provided with an upper light-emitting groove, and a prism sheet is recessed and installed inside the upper light-emitting groove, and the light-emitting end of the second flexible optical fiber bundle extends to the prism sheet.

[0012] Preferably, a light source switch protruding from the outside of the light source assembly cavity is installed above the external light source.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, two sets of recessed grooves are opened on the top of the barrel body. The recessed grooves are a light transmission cavity and a light source assembly cavity, respectively. An external light source is installed in the light source assembly cavity, and a beam splitting component is installed in the light transmission cavity. The external light source transmits the light source to the light output position through the beam splitting component. The external light source is located in the groove at the tail end of the barrel, so that it will not affect the user's normal observation and operation during operation. It ensures that the outside of the barrel will not come into contact with the hemorrhoid during the insertion process. During operation, the light source is controlled by the light source switch protruding from the outside, so that the user can operate the light source at this position more conveniently.

[0015] (2) In this utility model, the beam splitter is used to split the light source of the external light source into multiple beams. The light is transmitted through the first flexible fiber bundle and the second flexible fiber bundle respectively. The light in the first flexible fiber bundle enters the light guide diffuser plate and diffuses to the light output cavity at different positions through the light guide diffuser plate. After entering the light output cavity, the light is focused by the lens and emitted outward. The structure firstly, by constraining the movement of the light inside the flexible fiber bundle, it can reduce the problem of light attenuation caused by direct light transmission and light path growth. The way of constraining the light transmission inside the flexible fiber bundle can reduce the problem of long-distance light divergence and effectively reduce light loss. In addition, the light in the flexible fiber bundle will be transmitted to the light guide diffuser plate at the front end. The light guide diffuser plate can turn the point light source into a surface light source and diffuse the light evenly, so that it enters the light output cavity distributed in a ring and finally is focused and discharged by the lens. This structure can expand the illumination area and improve the surgical field. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the barrel body of this utility model;

[0018] Figure 3 This is a front view of the barrel body of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the optical transmission cavity of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the assembly slot of this utility model;

[0021] Figure 6 This is a schematic diagram of the outer casing structure of this utility model;

[0022] In the diagram: 1. Barrel body; 101. Light transmission cavity; 102. Light source assembly cavity; 2. External light source; 201. Light source switch; 3. Beam splitter assembly; 301. Beam splitter; 302. First flexible fiber bundle; 303. Second flexible fiber bundle; 4. Cover plate; 401. Upper light output slot; 402. Prism sheet; 403. Breaker; 5. Light output assembly; 501. Assembly slot; 502. Light guide diffuser plate; 503. Outer cover; 504. External thread; 505. Light output cavity; 506. Lens. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1 , Figure 4 This utility model provides an embodiment of a ligation anastomosis device barrel, comprising: a barrel body 1, an elongated light transmission cavity 101 formed at the top of the barrel body 1, a light source assembly cavity 102 provided at the rear end of the light transmission cavity 101, an external light source 2 installed inside the light source assembly cavity 102, a light source switch 201 protruding from the outside of the light source assembly cavity 102 installed above the external light source 2, a beam splitting assembly 3 installed inside the light transmission cavity 101, and the light output of the external light source 2 communicating with the light inlet of the beam splitting assembly 3; the light transmission cavity 1 provides an embodiment of a ligation anastomosis device barrel, comprising: a barrel body 1, an elongated light transmission cavity 101 formed at the top of the barrel body 1, a light source assembly cavity 102, an external light source 2 installed inside the light source assembly cavity 102, an external light source 2 installed inside the light source assembly cavity 102, and a light source switch 201 protruding from the outside of the external light source 2; the light transmission cavity 101 provides an embodiment of a ligation anastomosis device barrel, comprising: a barrel body 1, an elongated light transmission cavity 101, a light source assembly cavity 102, an external light source 2 installed inside the light source assembly cavity 102, and a light source switch 201 protruding from the outside of the external light source 2; the light transmission cavity 101 provides an embodiment of a ligation anastomosis device barrel, comprising: a barrel body 1, an external light source 2 installed inside the light source assembly cavity 102, and a light source switch 201 protruding from the outside of the external light source ... Two sets of recessed slots are provided, namely a light transmission cavity 101 and a light source assembly cavity 102. An external light source 2 is installed in the light source assembly cavity 102, and a beam splitter 3 is installed in the light transmission cavity 101. The external light source 2 transmits light to the light output position through the beam splitter 3. The external light source 2 is located at the tail end of the gun barrel and is recessed in the slot, so that it will not affect the user's normal observation and operation during operation. It ensures that the outside of the gun barrel will not come into contact with the hemorrhoid during the insertion process, improving safety and allowing the user to operate the light source at this position more conveniently.

[0025] like Figure 3 , Figure 5 , Figure 6As shown, a light-emitting assembly 5 is installed at the front end of the barrel body 1. The light-emitting assembly 5 includes a mounting groove 501, in which a light guide diffuser plate 502 is installed. The light-emitting end of the first flexible fiber bundle 302 extends to the light guide diffuser plate 502. An outer cover 503 is installed at the front end of the light guide diffuser plate 502. Multiple annularly spaced light-emitting cavities 505 are opened on the front end face of the outer cover 503. A lens 506 is installed at the light-emitting port of the light-emitting cavity 505. An external thread 504 is provided on the side wall of the outer cover 503. The outer cover 503 is rotatably connected to the mounting groove 501 through the external thread 504. The beam splitting assembly 3 includes a beam splitter 301 combined with the light source of the external light source 2. Multiple first flexible fiber bundles 302 and second flexible fiber bundles 303 are installed at the front end of the beam splitter 301. The beam splitter 301 is used to split the light source of the external light source 2 into multiple beams. The light beams pass through the first flexible fiber bundles 302 and second flexible fiber bundles 303 respectively. The second flexible fiber bundle 303 transmits light, where the light from the first flexible fiber bundle 302 enters the light guide diffuser plate 502 and diffuses it to the light output cavities 505 at different locations. After entering the light output cavities 505, the light is focused by the lens 506 and emitted outward. This structure firstly, by constraining the movement of light within the flexible fiber bundle, it can alleviate the light attenuation problem caused by direct light transmission and the growth of the light guide path. The way the light is constrained within the flexible fiber bundle can reduce the problem of long-distance light divergence and effectively reduce light loss. In addition, the light from the flexible fiber bundle is transmitted to the front-end light guide diffuser plate 502, which can transform the point light source into a surface light source, uniformly diffuse the light, and allow it to enter the various annularly distributed light output cavities 505. Finally, it is focused and emitted by the lens 506. This structure can expand the illumination area and improve the surgical field.

[0026] To further improve the lighting effect, such as Figure 2 As shown, a cover plate 4 is installed on the top of the light transmission cavity 101, and a lever 403 is provided at one end of the upper surface of the cover plate 4. The cover plate 4 can close the light transmission cavity 101, making the internal light less susceptible to external light interference, and can also protect the internal components. The lever 403 allows the user to easily pull the cover plate 4 open later, making it convenient for the user to replace and repair the internal components.

[0027] Based on the installation of cover plate 4, an upper light-emitting groove 401 is provided on the upper surface of cover plate 4. A prism sheet 402 is recessed and installed inside the upper light-emitting groove 401, and the light-emitting end of the second flexible fiber bundle 303 extends to the prism sheet 402. The light at the second flexible fiber bundle 303 is diffused outward through the prism sheet 402. The light at the first flexible fiber bundle 302 is mainly located at the front end of the gun barrel. The light emitted by the second flexible fiber bundle 303 is mainly for the perianal illumination, which is used to improve the illumination effect at other locations except for the front end illumination, thereby improving the surgical field around the anus.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A ligation stapler barrel, comprising a barrel body (1), characterized in that: The upper top of the barrel body (1) is provided with a long strip-shaped light transmission cavity (101). The rear end of the light transmission cavity (101) is provided with a light source assembly cavity (102). An external light source (2) is installed inside the light source assembly cavity (102). A beam splitting assembly (3) is installed inside the light transmission cavity (101). The light source output of the external light source (2) is connected to the light inlet of the beam splitting assembly (3). A light output assembly (5) is installed at the front end of the barrel body (1).

2. The ligation stapler barrel according to claim 1, characterized in that: The beam splitting assembly (3) includes a beam splitter (301) combined with the light source emitted by the external light source (2), and the front end of the beam splitter (301) is equipped with a first flexible fiber bundle (302) and a second flexible fiber bundle (303).

3. The barrel of a ligation stapler according to claim 2, characterized in that: The light-emitting component (5) includes an assembly groove (501), in which a light guide diffuser plate (502) is installed. The light-emitting end of the first flexible fiber bundle (302) extends to the light guide diffuser plate (502). An outer cover (503) is installed at the front end of the light guide diffuser plate (502). A plurality of annularly spaced light-emitting cavities (505) are opened on the front end face of the outer cover (503). A lens (506) is installed at the light-emitting port of the light-emitting cavity (505).

4. The barrel of a ligation stapler according to claim 3, characterized in that: The outer cover (503) has an external thread (504) on its side wall, and the outer cover (503) is threadedly connected to the assembly groove (501) through the external thread (504).

5. The barrel of a ligation stapler according to claim 2, characterized in that: A cover plate (4) is installed on the top of the light transmission cavity (101), and a break (403) is provided at one end of the upper surface of the cover plate (4).

6. The barrel of a ligation stapler according to claim 5, characterized in that: The upper surface of the cover plate (4) is provided with an upper light-emitting groove (401), and a prism sheet (402) is recessed inside the upper light-emitting groove (401), and the light-emitting end of the second flexible optical fiber bundle (303) extends to the prism sheet (402).

7. The barrel of a ligation stapler according to claim 1, characterized in that: A light source switch (201) protruding from the outside of the light source assembly cavity (102) is installed above the external light source (2).

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