Single-hole multi-channel endoscope device
By using a spherical limiting block and positioning components in a single-port multi-channel laparoscopic device, the problem of the inability to fix the laparoscope and surgical instruments has been solved, enabling rapid fixation and position adjustment, and improving the convenience and practicality of the surgery.
Patent Information
- Application Number
- CN202421863149.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In existing single-port multi-channel laparoscopic devices, the laparoscope and surgical instruments cannot be fixed inside the patient's body, resulting in inconvenience during the surgical procedure.
By employing a spherical limiting block and positioning components, the spherical limiting block at the outer end of the working channel allows the channel to rotate within the movable hole. The tight contact between the rubber pad and the spherical limiting block, combined with the damping connection of the limiting ring and the compression block, enables rapid fixation of the laparoscope and surgical instruments.
This allows the laparoscope and surgical instruments to be quickly positioned as needed during surgery, improving the convenience and practicality of the device and reducing inconvenience during the surgical process.
Smart Images

Figure CN223489817U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical technology, and more specifically, to a single-port multi-channel endoscopic device. Background Technology
[0002] Single-port multi-channel laparoscopy is a laparoscopic surgical technique, a minimally invasive surgical technique that allows surgical operations to be performed inside the abdominal cavity through a single incision or umbilicus by inserting multiple working channels. Compared to traditional multi-port laparoscopic surgery, the main feature of single-port multi-channel laparoscopy is that all working channels are inserted through a single trocar, reducing the number and size of postoperative scars, thus providing a more aesthetically pleasing result. In addition, single-port multi-channel laparoscopic surgery can reduce trauma and postoperative pain, shorten recovery time, and improve patient satisfaction.
[0003] Chinese Patent Announcement No. CN217014170U provides a multi-channel single-port laparoscopic surgical trocar. This design, through the setting of a rotating structure, allows the lower connector and the upper connector to be finely adjusted during the required rotation process. At the same time, the limiting structure plays a good role in limiting and fixing, thereby improving the practicality of the trocar.
[0004] However, in the existing technology, since the laparoscope and surgical instruments need to move after entering the patient's body through the working channel, the main body of the trocar is mostly made of flexible material. However, the flexible material will recover after deformation, which makes it impossible for the surgical instruments to stay in the current position. Moreover, the existing working channels mostly do not have the function of fixing the laparoscope, which makes it impossible for the doctor to fix the laparoscope after inserting it to a certain depth, thus causing inconvenience in the surgical process. Therefore, a single-port multi-channel laparoscopic device is proposed to address the above problems. Utility Model Content
[0005] 1. Technical problems to be solved
[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a single-port multi-channel laparoscopic device. In this solution, after inserting the laparoscope and surgical instruments, the user can rotate the working channel within the movable hole using the spherical limiting block at the outer end of the working channel, thereby adjusting the position of the laparoscope and surgical instruments. The rubber pad on the inner wall of the movable hole tightly abuts against the spherical limiting block, allowing the working channel to stop at the desired position during rotation, providing convenience for the surgical process. The positioning component at the outer end of the working channel can quickly fix the laparoscope inserted into the working channel, thereby quickly stopping the laparoscope at the required depth during the surgical process, effectively improving the convenience and practicality of the device.
[0007] 2. Technical Solution
[0008] To solve the above problems, the present invention adopts the following technical solution.
[0009] A single-port multi-channel laparoscopic device includes a trocar body and a pair of working channels. An inflation assembly is installed on the trocar body, and a pair of movable holes are provided on the trocar body. A spherical limiting block is spherically connected in the movable hole. The working channel is integrally formed with the spherical limiting block, and a positioning assembly is provided on the working channel. The positioning assembly includes a limiting ring and a pair of mutually symmetrical compression blocks. The limiting ring is rotatably connected to the outer surface of the working channel.
[0010] Furthermore, the inner cavity of the working channel extends through the spherical limiting block, and one end of the working channel extends through the movable hole and into the inner side of the puncture device body.
[0011] Furthermore, a pair of symmetrical through holes are provided on the working channel, and the extrusion block is slidably connected to the through holes.
[0012] Furthermore, the inner end of the limiting ring is provided with a pair of arc-shaped limiting grooves that match the extrusion block, and one end of the extrusion block abuts against the inner wall of the arc-shaped limiting groove.
[0013] Furthermore, a limiting hole is formed on the extrusion block, and an abutment block is fixedly connected to the inner wall of the through hole, the abutment block passing through the limiting hole.
[0014] Furthermore, a spring is provided inside the limiting hole, and the two ends of the spring are fixedly connected to the abutment block and the inner wall of the limiting hole, respectively.
[0015] 3. Beneficial effects
[0016] Compared with existing technologies, the advantages of this utility model are:
[0017] In this design, after inserting the laparoscope and surgical instruments, the user can rotate the working channel within the movable hole using the spherical limiting block at the outer end of the working channel, thereby adjusting the position of the laparoscope and surgical instruments. The rubber pad on the inner wall of the movable hole tightly abuts against the spherical limiting block, allowing the working channel to stop at the desired position during rotation, which facilitates the surgical procedure. The positioning component at the outer end of the working channel can quickly fix the laparoscope inserted into the working channel, allowing the laparoscope to be quickly stopped at the required depth during the operation, effectively improving the convenience and practicality of the device. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial cross-sectional view of the main body of the puncture device of this utility model;
[0020] Figure 3 This is a schematic diagram of the exploded structure of the working channel of this utility model;
[0021] Figure 4 This is a partial cross-sectional view of the working channel and positioning components of this utility model;
[0022] Figure 5 This utility model Figure 4 Schematic diagram of the structure at point A in the middle.
[0023] Explanation of the labels in the diagram:
[0024] 1. The main body of the puncture instrument;
[0025] 2. Inflatable components;
[0026] 3. Work passageway;
[0027] 4. Spherical limiting block;
[0028] 5. Positioning components; 501. Limiting ring; 502. Arc-shaped limiting groove; 503. Extrusion block; 504. Limiting hole; 505. Abutment block; 506. Spring. Detailed Implementation
[0029] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Example:
[0033] Please see Figure 1-2 A single-port multi-channel laparoscopic device includes a puncture device body 1 and a pair of working channels 3. An inflation component 2 is installed on the puncture device body 1, and a pair of movable holes are opened on the puncture device body 1. A spherical limiting block 4 is spherically connected in the movable holes. The working channels 3 and the spherical limiting block 4 are integrally formed, and a positioning component 5 is provided on the working channels 3. The positioning component 5 includes a limiting ring 501 and a pair of mutually symmetrical compression blocks 503. The limiting ring 501 is rotatably connected to the outer surface of the working channels 3.
[0034] Single-port multi-channel laparoscopy is a laparoscopic surgical technique, a minimally invasive surgical technique that allows surgical operations to be performed within the abdominal cavity through a single incision or umbilicus. Compared to traditional multi-port laparoscopic surgery, the main feature of single-port multi-channel laparoscopy is that all working channels are inserted through a single trocar, reducing the number and size of postoperative scars and thus providing a more aesthetically pleasing result. In this procedure, after making an incision at the patient's umbilicus, the medical staff inserts the trocar body 1 into the patient's umbilicus, so that the bottom end of the trocar body 1 enters the patient's abdominal cavity. The inflation component 2 is existing technology used to inflate the patient's abdominal cavity. Gas, typically carbon dioxide, is used to expand the abdominal cavity space, providing doctors with sufficient room to operate. A pair of working channels 3 are used by medical staff to insert the laparoscope and surgical instruments into the patient's abdominal cavity during surgery. After inserting the laparoscope and surgical instruments, the user can rotate the working channel 3 within the movable hole by using the spherical limiting block 4 at the outer end of the working channel 3, thereby adjusting the position of the laparoscope and surgical instruments. A rubber pad is installed on the inner wall of the movable hole, which abuts tightly against the spherical limiting block 4, providing a damping effect. This allows the working channel 3 to stop at the desired position during rotation, facilitating the surgical procedure.
[0035] Please see Figure 3-5The inner cavity of the working channel 3 passes through the spherical limiting block 4, and one end of the working channel 3 passes through the movable hole and extends to the inner side of the puncture device body 1. A pair of symmetrical through holes are provided on the working channel 3. The squeezing block 503 is slidably connected to the through holes. A pair of arc-shaped limiting grooves 502 matching the squeezing block 503 are provided at the inner end of the limiting ring 501. One end of the squeezing block 503 abuts against the inner wall of the arc-shaped limiting groove 502. A limiting hole 504 is provided on the squeezing block 503. An abutting block 505 is fixedly connected to the inner wall of the through hole. The abutting block 505 passes through the limiting hole 504. A spring 506 is provided in the inner cavity of the limiting hole 504. The two ends of the spring 506 are fixedly connected to the abutting block 505 and the inner wall of the limiting hole 504, respectively.
[0036] During surgery, after the laparoscope enters the patient's abdominal cavity, it needs to remain at a specific depth. Existing working channels often lack the function of fixing the laparoscope. This solution incorporates a positioning component 5 on the working channel 3 for rapid fixation of the laparoscope. After the user inserts the laparoscope into the patient's abdominal cavity through the working channel 3 and reaches the designated position, they rotate the limiting ring 501. The limiting ring 501 is connected to the working channel 3 via a damped rotational connection. During the rotation of the limiting ring 501, the inner wall of the arc-shaped limiting groove 502 compresses and pushes the compression block 503, thus... A pair of compression blocks 503 slide within the through hole and move toward the inner cavity of the working channel 3. The pair of compression blocks 503 compress the laparoscope in the working channel 3, thereby achieving rapid fixation of the laparoscope. Due to the damping connection between the limiting ring 501 and the working channel 3, the limiting ring 501 will not reset on its own. During the movement, the compression blocks 503 will compress the spring 506. Therefore, when the user rotates the limiting ring 501 in the opposite direction, the pair of compression blocks 503 will reset under the elastic force of the spring 506, thereby quickly releasing the fixation of the laparoscope.
[0037] Working principle:
[0038] In use, after making an incision at the patient's navel, the medical staff inserts the trocar body 1 into the navel. The inflation component 2 inflates the abdominal cavity to provide sufficient space for the doctor to operate. During the operation, the medical staff inserts the laparoscope and surgical instruments into the abdominal cavity through the working channel 3. After insertion, the working channel 3 can be rotated within the movable hole by the spherical limiting block 4 at the outer end of the working channel 3, thereby adjusting the position of the laparoscope and surgical instruments. After the user inserts the laparoscope into the patient's abdominal cavity through the working channel 3 and reaches the designated position, the device is rotated... The limiting ring 501 is damped and rotatably connected to the working channel 3. During the rotation of the limiting ring 501, the inner wall of the arc-shaped limiting groove 502 squeezes and pushes the squeezing blocks 503, causing a pair of squeezing blocks 503 to slide in the through hole and move towards the inner cavity of the working channel 3. The pair of squeezing blocks 503 squeeze the laparoscope in the working channel 3, thereby achieving rapid fixation of the laparoscope. When the user rotates the limiting ring 501 in the opposite direction, the pair of squeezing blocks 503 will be reset under the elastic force of the spring 506, thereby quickly releasing the fixation of the laparoscope.
[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A single-port multi-channel laparoscopic device, comprising a trocar body (1) and a pair of working channels (3), characterized in that: An inflation component (2) is installed on the puncture device body (1), and a pair of movable holes are provided on the puncture device body (1). A spherical limiting block (4) is spherically connected in the movable hole. The working channel (3) is integrally formed with the spherical limiting block (4), and a positioning component (5) is provided on the working channel (3). The positioning component (5) includes a limiting ring (501) and a pair of mutually symmetrical pressing blocks (503), wherein the limiting ring (501) is rotatably connected to the outer surface of the working channel (3).
2. The single-port multi-channel endoscopic device according to claim 1, characterized in that: The inner cavity of the working channel (3) passes through the spherical limiting block (4), and one end of the working channel (3) passes through the movable hole and extends to the inner side of the puncture device body (1).
3. The single-port multi-channel endoscopic device according to claim 1, characterized in that: The working channel (3) has a pair of symmetrical through holes, and the extrusion block (503) is slidably connected to the through holes.
4. The single-port multi-channel endoscopic device according to claim 1, characterized in that: The inner end of the limiting ring (501) is provided with a pair of arc-shaped limiting grooves (502) that match the extrusion block (503), and one end of the extrusion block (503) abuts against the inner wall of the arc-shaped limiting groove (502).
5. A single-port multi-channel endoscopic device according to claim 3, characterized in that: The extrusion block (503) has a limiting hole (504), and an abutment block (505) is fixedly connected to the inner wall of the through hole, the abutment block (505) passing through the limiting hole (504).
6. A single-port multi-channel endoscopic device according to claim 5, characterized in that: A spring (506) is provided in the inner cavity of the limiting hole (504), and the two ends of the spring (506) are fixedly connected to the abutment block (505) and the inner wall of the limiting hole (504), respectively.
Citation Information
Patent Citations
Multi-channel single-port laparoscopic surgery puncture outfit
CN217014170U