Single-port laparoscopic surgery puncture outfit with variable number of channels

Abstract

The single-port laparoscopic surgery puncture outfit with the variable number of channels comprises an incision protection ring, and a first vertical hole is formed in the incision protection ring; the upper portion of the notch protection ring is sleeved with a mounting body, and a second vertical hole coaxial with the first vertical hole is formed in the mounting body. A mounting ring groove is formed in the upper part of the mounting body, a plurality of connecting plates with L-shaped sections are arranged in the mounting ring groove, columnar channels are formed in the connecting plates, and the columnar channels penetrate out of the upper ends and the lower ends of the connecting plates; a channel opening is formed in the columnar channel; convex rings are respectively arranged at the upper and lower ends of the incision protection ring; and a circular groove matched with the convex ring is formed in the bottom of the mounting body. The number of the channel openings can be adjusted according to requirements, a space is reserved for observation and supporting of the drag hook, and the flexibility and accuracy of surgical operation can be improved.

Description

Technical Field

[0001] This utility model relates to a single-port laparoscopic surgical trocar with a variable number of channels, belonging to the field of medical device technology. Background Technology

[0002] Single-port laparoscopy is an advanced minimally invasive surgical technique. Its basic principle involves making a small incision in the patient's body and inserting a laparoscope equipped with a camera and surgical instruments. The camera transmits images of the patient's internal organs to a display screen, allowing the surgeon to observe and operate the instruments. This procedure requires a single-port trocar to establish the operating platform. For example, Chinese invention patent CN115024801A discloses a multi-channel single-port laparoscopic surgical trocar, specifically including a laparoscopic surgical mechanism. This mechanism comprises a cannula assembly, a puncture core, a carbon dioxide interface, a first insertion port, and a second insertion port. The puncture core is engaged at the bottom of the cannula assembly. Two holes are formed on the outer wall of the cannula assembly. A second insertion port is fixedly connected to the top of the cannula assembly at the position of the first insertion port. Two holes are formed at the bottom of the top of the cannula assembly away from the second insertion port. The cannula assembly is fixedly connected to two first insertion ports through the first insertion ports. This type of puncture device lacks a corresponding channel for inserting the retractor for support, leaving the doctor without a fulcrum when using the instrument, making operation more strenuous and limiting the field of vision. The doctor can only connect to the patient's internal condition through a camera, and the number of channels is fixed and cannot be adjusted accordingly. Utility Model Content

[0003] The purpose of this invention is to provide a single-port laparoscopic surgical trocar with a variable number of channels. This invention allows for adjustment of the number of channels as needed, and provides space for observation and hook support, thereby improving the flexibility and precision of surgical procedures.

[0004] The technical solution of this utility model is as follows: A single-port laparoscopic surgical trocar with a variable number of channels includes an incision protection ring, the incision protection ring having a first vertical hole inside; a mounting body is fitted above the incision protection ring, the mounting body having a second vertical hole coaxially arranged with the first vertical hole inside; the upper part of the mounting body is provided with a mounting ring groove, the mounting ring groove is provided with multiple connecting plates with L-shaped cross sections, the connecting plates are provided with columnar channels, the columnar channels extending from the upper and lower ends of the connecting plates; the columnar channels are provided with channel openings; the upper and lower ends of the incision protection ring are respectively provided with protruding rings; the bottom of the mounting body is provided with a circular groove that fits with the protruding rings.

[0005] The aforementioned single-port laparoscopic surgical trocar with variable number of channels includes a connecting plate comprising a vertical portion and a horizontal portion, the horizontal portion being a quarter-circle shape; the vertical portion mates with a mounting ring groove.

[0006] The aforementioned single-port laparoscopic surgical trocar with variable number of channels has multiple first limiting blocks at the bottom of the mounting ring groove; the bottom of the vertical part has first grooves on both sides, and the first grooves cooperate with the first limiting blocks.

[0007] The aforementioned single-port laparoscopic surgical trocar with variable number of channels has multiple second limiting blocks above the convex ring at the upper end of the incision protection ring; the top of the circular groove has multiple second grooves, which cooperate with the second limiting blocks.

[0008] The aforementioned single-port laparoscopic surgical trocar with variable number of channels has the same diameter for the first vertical port and the second vertical port.

[0009] The aforementioned single-port laparoscopic surgical trocar with a variable number of channels has a one-way valve above the channel opening, and the one-way valve's guiding direction is from the top to the bottom of the columnar channel; the one-way valve is made of silicone.

[0010] The aforementioned single-port laparoscopic surgical trocar with variable channel number has an incision protection ring made of plastic film with a thickness of 2-6 mm.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In this invention, an incision protection ring is placed at the surgical opening of the patient, ensuring the lower convex ring of the ring fits tightly against the edge of the opening, protecting the skin of the opening and preventing tissue damage and infection during surgery. Then, the circular groove of the mounting body is fitted onto the convex ring above the incision protection ring. The appropriate number of connecting plates with corresponding columnar channels are selected according to the instruments used. The connecting plates are inserted into the mounting ring groove, and the support hooks are inserted through the second and first vertical holes from the area without the connecting plates, pulling the patient's skin upwards to support the mounting body and increase internal surgical space. Finally, the corresponding instruments are inserted into the patient's body through the channels for surgery. Thus, this invention achieves the effect of adjusting the number of channels as needed while leaving space for observation and hook support, offering advantages such as simple structure and ease of use.

[0013] 2. In this utility model, the first limiting block in the mounting ring groove is stuck in the first groove on both sides of the vertical part to prevent the connecting plate from rotating freely in the mounting ring groove and to prevent it from failing to support the instrument.

[0014] 3. In this utility model, the protruding rings at the upper and lower ends of the incision protection ring are used to limit the incision protection ring and prevent it from separating from the opening on the patient's body; the circular groove at the bottom of the mounting body cooperates with the protruding ring at the upper end, and the second limiting block cooperates with the second groove, thereby preventing the mounting body from rotating at will. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cut protection ring structure;

[0017] Figure 3 This is a structural diagram of the mounting body;

[0018] Figure 4 This is a schematic diagram of the structure at the bottom of the mounting body;

[0019] Figure 5 This is a structural diagram of the connecting plate.

[0020] The markings in the attached diagram are as follows: 1-cut protection ring, 2-first vertical hole, 3-mounting body, 4-second vertical hole, 5-mounting ring groove, 6-connecting plate, 7-columnar channel, 8-channel opening, 81-vertical part, 82-horizontal part, 9-first limiting block, 10-first groove, 11-convex ring, 12-circular groove, 13-second limiting block, 14-second groove, 15-one-way valve. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0022] Example: A single-port laparoscopic surgical trocar with a variable number of channels, configured as follows Figure 1-3As shown, the procedure includes an incision protection ring 1, which is made of a medical-grade plastic film material with a certain degree of flexibility and antibacterial properties. The film is 2-6 mm thick, effectively protecting the skin around the incision and preventing bacterial infection, thus ensuring surgical safety. In this embodiment, the thickness is 4 mm. The incision protection ring 1 has a first vertical hole 2 inside. A mounting body 3, made of plastic and cylindrical in shape, is fitted over the incision protection ring 1 to ensure stable support of surgical instruments and withstand certain external forces during surgery. The mounting body 3 has a second vertical hole 4 coaxially arranged with the first vertical hole 2. The diameters of the first vertical hole 2 and the second vertical hole 4 are the same. The upper part of the mounting body 3 has a mounting ring groove 5 for mounting... The mounting groove 5 contains multiple L-shaped connecting plates 6, each with a columnar channel 7 extending from its upper and lower ends. Different connecting plates 6 have various specifications of columnar channels 7, allowing medical personnel to select the appropriate connecting plate 6 based on the device. Each columnar channel 7 has an opening 8. The incision protection ring 1 has protruding rings 11 at its upper and lower ends. The lower protruding ring 11 is made of rubber for easy insertion into the patient's body, while the upper protruding ring 11 is made of plastic. The protruding rings 11 at the upper and lower ends of the incision protection ring 1 are used to limit its movement, preventing it from separating from the opening on the patient's body. The bottom of the mounting body 3 has a circular groove 12 that fits into the protruding ring 11. Place the incision protection ring 1 at the surgical patient's opening, ensuring the lower convex ring 11 of the incision protection ring 1 fits tightly against the edge of the opening. Then, fit the circular groove 12 of the mounting body 3 onto the convex ring 11 above the incision protection ring 1. Select the appropriate number of instruments and the corresponding connecting plates 6 with corresponding columnar channels 7, insert the connecting plates 6 into the mounting ring groove 5, and insert the support hooks through the second vertical hole 4 and the first vertical hole 2 from the area where the connecting plates 6 are not installed, pulling the patient's skin upward to support the mounting body 3 and increase the internal surgical space. Then, insert the corresponding instruments into the patient's body through the channel opening 8 to perform the surgery.

[0023] Preferably, such as Figure 5 As shown, the connecting plate 6 includes a vertical portion 81 and a horizontal portion 82. The horizontal portion 82 is quarter-circular, allowing a maximum of four connecting plates 6 to be placed on the mounting body 3. The vertical portion 81 mates with the mounting ring groove 5. Four first limiting blocks 9 are provided at the bottom of the mounting ring groove 5. First grooves 10 are provided on both sides of the bottom of the vertical portion 81, and these grooves 10 mate with the first limiting blocks 9. The first limiting blocks 9 within the mounting ring groove 5 are engaged within the first grooves 10 on both sides of the vertical portion 81 to prevent the connecting plates 6 from rotating freely within the mounting ring groove 5, thus preventing them from failing to support the instrument.

[0024] Preferably, such as Figure 2As shown, four second limiting blocks 13 are provided above the convex ring 11 at the upper end of the cut protection ring 1; four second grooves 14 are provided at the top of the circular groove 12, and the second grooves 14 cooperate with the second limiting blocks 13. By engaging the circular groove 12 at the bottom of the mounting body 3 with the convex ring 11 at the upper end, and by engaging the second limiting blocks 13 with the second grooves 14, the mounting body 3 is prevented from rotating freely.

[0025] Preferably, such as Figure 1 and 5 As shown, a one-way valve 15 is provided above the channel opening 8, and the conduction direction of the one-way valve 15 is from above to below the cylindrical channel 7. The one-way valve 15 is made of silicone. The one-way valve 15 is used to prevent blood from splashing out of the channel opening 8 during surgery. The one-way valve 15 is shaped like a duckbill and consists of four opposing leaflets with a certain curvature and elasticity. One end of the leaflet is connected to the inner wall of the channel opening 8, and the other end is free to move. Under normal circumstances, the four leaflets of the one-way valve 15 are tightly closed, blocking the channel opening 8. When an instrument is inserted from above the cylindrical channel, it will push the leaflets apart, forming a gap between the leaflets to facilitate instrument operation. When blood wants to flow backward from below and splash out of the channel opening 8, the pressure of the blood will cause the leaflets to squeeze against each other, making the leaflets fit more tightly, thereby effectively preventing blood from splashing out of the channel opening.

[0026] Working principle:

[0027] Installation Process: Place the incision protection ring 1 at the surgical patient's opening, ensuring the lower convex ring 11 of the incision protection ring 1 fits tightly against the edge of the opening to protect the skin of the opening wall and prevent tissue damage and infection during surgery. Align the circular groove 12 at the bottom of the mounting body 3 with the upper convex ring 11 of the incision protection ring 1 and slide it in. Rotate the mounting body 3 so that the second limiting block 13 accurately falls into the second groove 14, completing the installation of the mounting body 3 and ensuring that the mounting body 3 is stably fixed on the incision protection ring 1. Insert the vertical part 81 of the selected connecting plate 6 into the mounting ring groove 5, so that the first limiting block 9 is engaged in the first groove 10, ensuring that the connecting plate 6 will not rotate freely within the mounting ring groove 5. Determine the number of connecting plates 6 to be installed according to surgical needs. The positions where no connecting plates 6 are installed are used to insert support hooks.

[0028] Surgical Procedure: The support hook is inserted through the second vertical hole 4 and the first vertical hole 2 from the point where the connecting plate 6 was not installed. The patient's skin is gently lifted to provide support for the mounting body 3, while also increasing the internal surgical space for better observation and operation by the surgeon. Then, the surgical instruments are inserted through the channel opening 8 into the cylindrical channel 7 and then into the patient's body for the surgical procedure. During the operation, the one-way valve 15 prevents blood and other fluids from splashing outwards, maintaining a clear surgical field.

Claims

1. A single-port laparoscopic surgical trocar with a variable number of channels, characterized in that: The device includes a cut protection ring (1), which has a first vertical hole (2) inside; a mounting body (3) is fitted on top of the cut protection ring (1), and the mounting body (3) has a second vertical hole (4) coaxially arranged with the first vertical hole (2) inside; the mounting body (3) has a mounting ring groove (5) on its upper part, and multiple connecting plates (6) with L-shaped cross sections are provided in the mounting ring groove (5). The connecting plates (6) have columnar channels (7) that pass through the upper and lower ends of the connecting plates (6); the columnar channels (7) have channel openings (8); the cut protection ring (1) has protruding rings (11) at its upper and lower ends respectively; and the mounting body (3) has a circular groove (12) at its bottom that fits with the protruding rings (11).

2. The single-port laparoscopic surgical trocar with variable number of channels according to claim 1, characterized in that: The connecting plate (6) includes a vertical part (81) and a horizontal part (82), the horizontal part (82) being a quarter circle; the vertical part (81) is fitted with the mounting ring groove (5).

3. The single-port laparoscopic surgical trocar with variable number of channels according to claim 2, characterized in that: The mounting ring groove (5) has multiple first limiting blocks (9) at its bottom; the vertical part (81) has first grooves (10) on both sides of its bottom, and the first grooves (10) cooperate with the first limiting blocks (9).

4. The single-port laparoscopic surgical trocar with variable number of channels according to claim 1, characterized in that: The upper end of the cut protection ring (1) has a plurality of second limiting blocks (13) above the convex ring (11); the top of the circular groove (12) has a plurality of second grooves (14), and the second grooves (14) cooperate with the second limiting blocks (13).

5. The single-port laparoscopic surgical trocar with variable number of channels according to claim 1, characterized in that: The first vertical hole (2) and the second vertical hole (4) have the same diameter.

6. The single-port laparoscopic surgical trocar with variable number of channels according to claim 1, characterized in that: A one-way valve (15) is provided above the channel opening (8), and the conduction direction of the one-way valve (15) is from the top to the bottom of the columnar channel (7); the one-way valve (15) is made of silicone.

7. The single-port laparoscopic surgical trocar with variable number of channels according to claim 1, characterized in that: The cut protection ring (1) is made of plastic film with a thickness of 2 to 6 mm.

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