An incision isolation device for endoscopic surgery

Abstract

This invention discloses an incision isolation device for laparoscopic surgery, relating to the field of medical device technology. It includes a protective cylinder with an internal operating channel; a flexible diaphragm connected to the bottom of the protective cylinder, with an elastic ring fixed to its periphery; a pull rope, the end of which passes through the protective cylinder and the operating channel and connects to the bottom of the elastic ring, with its traction portion passing through and positioned above the protective cylinder; and a pressure plate that can slide along the outer wall of the protective cylinder. The protective cylinder provides protection and isolation for the incision, allowing instruments to be used for surgical procedures through the operating channel, preventing further damage to the incision. Simultaneously, the pull rope, in conjunction with the flexible diaphragm, facilitates safer and faster placement of the protective cylinder within the incision, providing comprehensive and tight protection around the incision and preventing further expansion of the incision.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an incision isolation device for laparoscopic surgery. Background Technology

[0002] Laparoscopic surgery is a newly developed minimally invasive technique and an inevitable trend in the future development of surgical methods. The traditional method involves making a small incision at the site of the lesion, through which the surgeon inserts a tiny light source, camera, and surgical instruments. The surgeon uses images transmitted to a monitor to guide the manipulation of the surgical instruments, achieving the same surgical outcome. The advantages of laparoscopic surgery are very clear: firstly, it is minimally invasive, leaves very little scar, and significantly reduces postoperative wound pain for patients.

[0003] However, current laparoscopic surgery has many drawbacks in terms of incision closure, for example, in abdominal surgery, as shown in the instruction manual. Figure 6 As shown, doctors often use auxiliary instruments (retractors) to retract the soft tissue of the surgical incision to expose the surgical site. However, these retractors have disadvantages such as uneven tension and limited field of vision, and excessive traction can even damage the soft tissue. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes an incision isolation device for laparoscopic surgery.

[0005] The technical solution to the technical problem solved by this utility model is as follows: This utility model proposes an incision isolation device for laparoscopic surgery, comprising a protective cylinder with an operating channel inside, and the body of the protective cylinder having a hollow structure to form a closed cavity; a flexible partition connected to the bottom of the protective cylinder, with an elastic ring fixed around its periphery; at least one pull rope, the pull rope consisting of an end, a middle part, and a traction part, the middle part being located within the closed cavity, the end passing through the protective cylinder and the operating channel and connecting to the bottom of the elastic ring, and the traction part passing through and positioned above the protective cylinder; and a pressure plate that can slide vertically along the outer wall of the protective cylinder.

[0006] Preferably, each pull rope has an inverted "U" shape, having two ends, two middle sections, and an arc-shaped traction section.

[0007] Preferably, two pull ropes are threaded inside the protective cylinder, and the four sets of ends of the two pull ropes are distributed in a rectangular shape.

[0008] Preferably, the protective cylinder has an inverted conical shape.

[0009] Preferably, the outer wall of the protective cylinder is provided with at least one set of recesses; the inside of the pressure plate is provided with at least one set of abutment plates that can slide towards the center point of the pressure plate, and the abutment plates are adapted to be inserted into the recesses.

[0010] Preferably, the pressure plate has two symmetrical movable cavities and a sliding groove. Each set of movable cavities and sliding grooves are connected to each other. The abutment plate is movably arranged in the movable cavity. The top surface of the abutment plate passes through the sliding groove and is fixedly connected to a push handle. The push handle is slidably arranged along the inside of the sliding groove.

[0011] Preferably, an air pipe is provided inside the protective cylinder, with one end of the air pipe passing through and extending to the top of the protective cylinder, and the other end of the pipe connected to the bottom surface of the protective cylinder.

[0012] Preferably, a flexible duckbill valve is provided in the operating channel.

[0013] Preferably, the top surface of the protective cylinder is fixed with two sets of mirror-arranged bosses, and the middle part of each pull rope is respectively locked outside the bosses.

[0014] Preferably, both the protective cylinder and the pressure plate are made of polyethylene.

[0015] The above technical solution has the following advantages or beneficial effects: 1. In this utility model, a protective sleeve is used to protect and isolate the incision. Related instruments can be used to perform surgical operations inside the sleeve through its operating channels, preventing further damage to the incision. Simultaneously, a pull rope combined with a flexible partition facilitates safer and faster placement of the protective sleeve within the incision, achieving comprehensive and tight protection around the incision and preventing further expansion of the incision.

[0016] 2. In this utility model, the conical protective tube, the flexible septum, and the pressure plate work together to effectively hold the skin around the incision after insertion. This serves two purposes: firstly, it helps to better position the protective tube and prevent it from shifting or falling off during the operation; secondly, this holding method can exert a certain squeezing effect on the tiny blood vessels on the skin surface, promoting vascular closure, thereby effectively preventing bleeding of the surrounding skin caused by surgical operations and ensuring a clear surgical field of vision. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 yes Figure 1 A schematic diagram of the half-section structure.

[0020] Figure 3 This is a three-dimensional structural diagram of the rope after it is pulled up in this utility model.

[0021] Figure 4 yes Figure 3 A three-dimensional half-section diagram.

[0022] Figure 5 This is a schematic diagram of the structure of this utility model during surgical operation.

[0023] Figure 6 This is a diagram illustrating the conventional method of using a retractor to open the incision.

[0024] Explanation of reference numerals in the attached figures: 1. Protective cylinder; 101. Recessed part; 2. Enclosed cavity; 3. Operating channel; 4. Flexible partition; 5. Elastic ring; 6. Pull rope; 61. End; 62. Middle part; 63. Traction part; 7. Pressure plate; 71. Abutment plate; 72. Movable cavity; 73. Slide groove; 74. Push handle; 8. Air pipe; 9. Flexible duckbill valve; 10. Boss. Detailed Implementation

[0025] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0026] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0027] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Example 1 like Figures 1 to 5 As shown, this embodiment proposes an incision isolation device for laparoscopic surgery, which includes a protective cylinder 1. The protective cylinder 1 has an operating channel 3 inside, which facilitates the surgeon's palpation with fingers or surgical manipulation with electrosurgical instruments. The protective cylinder 1 has a hollow internal structure, forming a closed cavity 2, thereby reducing the overall weight. This lightweight design can reduce the mechanical pressure of the device on the tissues around the incision to a certain extent, and also prevent accidental displacement or dislodgement due to excessive weight. It also includes a flexible septum 4, which can be made of medical silicone or rubber. The flexible septum 4 is connected to the bottom of the protective cylinder 1, and an elastic ring 5 is fixed around the periphery of the flexible septum 4. It also includes at least one set of pull ropes 6, which are composed of an end 61, a middle part 62, and a traction part 63. The middle part 62 is located in the closed cavity 2, and the end 61 passes through the protective cylinder 1 and the operating channel 3 and connects to the bottom of the elastic ring 5. The aforementioned traction device passes through and is positioned above the protective cylinder 1. It also includes a pressure plate 7, which can be vertically slidable along the outer wall of the protective cylinder 1.

[0029] In thoracic surgery, such as Figure 6 As shown, doctors often use auxiliary instruments (retractors) to retract the soft tissue of the surgical incision to expose the surgical site. However, these retractors have disadvantages such as uneven tension and limited field of vision, and excessive traction can even damage the soft tissue.

[0030] Based on the above considerations, this utility model employs a protective sleeve 1 to protect and isolate the incision. The protective sleeve 1 has an operating channel 3, which allows for clear exposure and facilitates surgical procedures for doctors. Figure 4 As shown, the flexible septum 4 in this design is tractioned by a pull rope 6. During placement, the surgeon can pull the rope 6 to guide the flexible septum 4 and the elastic ring 5 into the operating channel 3, avoiding further damage to the incision. After the flexible septum 4 is placed in the incision, the surgeon releases the pull rope 6. At this time, the elastic ring 5 expands under its own force. Combined with the sliding pressure plate 7 above, the two work together to achieve comprehensive and tight protection around the incision, greatly facilitating the surgeon's subsequent surgical operations.

[0031] The following benefits can be achieved by using this device: 1. Easy to use. The device can be successfully inserted on the first attempt in actual use, and its position does not need to be adjusted during the operation. It can be removed in one go at the end of the operation.

[0032] 2. Good safety. The tension of the protective sleeve 1 can be used to expand the incision, providing a better operating channel 3 for the operation, which is conducive to the operation and will not cause damage to the surrounding tissues; it reduces the risk of contamination of the surrounding tissues at the surgical site, thereby reducing the possibility of postoperative infection and incision contamination.

[0033] 3. Convenient surgical procedure. The procedure is performed through the operating channel 3, allowing the use of traditional surgical instruments and techniques. It facilitates palpation with the fingers or the use of surgical instruments to perform internal surgical operations, increasing the precision of the surgery.

[0034] 4. The surgical field is clear and clean, with minimal intraoperative bleeding. During routine procedures, the wound at the main operating port experiences subcutaneous bleeding, especially from the inner and outer muscles, due to repeated friction from the instruments. This bleeding then flows along the surgical instruments to the operating point, making separation difficult and hindering the identification of tissue structures. This significantly impacts anatomical procedures. Using this protective sleeve 1 completely avoids this defect.

[0035] 5. Preventing tumor implantation and metastasis at the surgical site. Using this protective sleeve 1 prevents potentially tumor-carrying materials from being brought to the surgical site during procedures, thus avoiding implantation and metastasis. This is especially important for tumor resection, where the tumor capsule is prone to rupture during intraoperative clamping, potentially causing iatrogenic dissemination and implantation at the surgical site. The use of the protective sleeve 1 helps stabilize the operating environment, reducing this risk.

[0036] In this embodiment, each pull rope 6 has an inverted "U" shape, with two ends 61, two middle portions 62, and an arc-shaped traction portion 63. Furthermore, two pull ropes 6 are threaded through the protective cylinder 1, and the four sets of ends 61 of the two pull ropes 6 are distributed in a rectangular shape.

[0037] In practice, the doctor uses both thumbs to press against the top of the protective tube 1, and then uses both index fingers to pull upwards on the two pull ropes 6. With the help of the pull ropes 6, the flexible septum 4 and the elastic ring 5 can easily enter the operating channel 3, effectively reducing the space occupied, and can then be inserted into the body through the incision. Next, the doctor releases the two index fingers, releasing the restriction of the pull ropes 6, and the elastic ring 5 will cause the flexible septum 4 to unfold and fit against the inner layer of the skin around the incision. This inverted "U"-shaped pull rope 6 greatly improves the efficiency of inserting the flexible septum 4 into the incision after retraction, avoiding further damage to the incision, and is convenient and quick.

[0038] like Figure 1As shown, furthermore, two sets of mirror-shaped protrusions 10 are provided on the top surface of the protective cylinder 1, and each of the aforementioned pull ropes 6 is respectively secured to the outside of the protrusions 10. In the normal state, the middle part 62 of the pull rope 6 may be located above the operating channel 3, causing some interference to subsequent surgical operations. By restricting the middle part 62 of the pull rope 6 through the protrusions 10, it is placed on both sides above the protective cylinder 1, completely exposing the internal operating channel 3, which facilitates the operation by the surgeon.

[0039] In this embodiment, the protective sleeve 1 has an inverted conical shape, with a continuous arc-shaped transition section from top to bottom to achieve a gradual decrease in diameter. This gradually expanding shape prevents excessive stretching of the incision when inserted, maintaining an appropriate incision size, avoiding unnecessary expansion, and promoting postoperative wound healing. The conical operating channel 3 formed inside provides support and guidance for instrument operation at different angles. The surgeon can adjust the angle of the instrument using the conical wall of the protective sleeve 1 according to the surgical needs, allowing for more flexible operation. This is especially beneficial in complex surgeries requiring multi-angle operation, improving the convenience and accuracy of the surgical procedure. After the surgery, the inverted conical protective sleeve 1 can also be more easily removed from the incision.

[0040] Furthermore, both the protective cylinder 1 and the pressure plate 7 mentioned above are made of polyethylene. This material is lightweight and easy to injection mold, and the inverted conical structure makes demolding easier, thus reducing production costs.

[0041] In this embodiment, a trachea 8 is installed inside the protective cylinder 1. One end of the trachea 8 passes through and extends to the top of the protective cylinder 1, while the other end connects to the bottom surface of the protective cylinder 1. In laparoscopic surgery, it is generally necessary to inject gases such as carbon dioxide into the abdominal cavity using a pneumoperitoneum machine to create a certain space between the abdominal wall and the abdominal organs, providing sufficient field of vision and operating space for the surgical procedure. In this design, the trachea 8 can be connected to the input tube in the pneumoperitoneum machine to inject gases such as carbon dioxide into the abdominal cavity, making the surgical field of vision clearer, facilitating the surgeon's operation, and reducing damage to surrounding tissues. The pneumoperitoneum machine has the function of precisely controlling the intra-abdominal pressure, maintaining the pressure within a suitable range during abdominal surgery, ensuring surgical space without affecting the patient's blood circulation and other physiological functions due to excessive pressure.

[0042] In this embodiment, a flexible duckbill valve 9 is provided in the operating channel 3. The flexible duckbill valve 9 can refer to a component in a sealing assembly for a small trocar according to patent application number 201820333737.9. The flexible duckbill valve 9 can cover the instrument during the operation to prevent the gas in the abdomen from leaking out, causing the originally opened surgical space to collapse and obstruct the surgical field of vision.

[0043] Example 2 like Figure 2As shown, in this embodiment, based on embodiment 1, several sets of recesses 101 are provided on the outer wall of the protective cylinder 1; the pressure plate 7 is provided with at least one set of abutment plates 71 that can slide towards the center point of the pressure plate 7, and the abutment plates 71 are adapted to be inserted into the recesses 101.

[0044] Furthermore, the pressure plate 7 has two symmetrical movable cavities and a slide groove 73. Each set of movable cavities is connected to the slide groove 73. An abutment plate 71 is slidably arranged in the movable cavity. After the top surface of the abutment plate 71 passes through the slide groove 73, a push handle 74 is fixedly connected. The push handle 74 is slidably arranged along the inside of the slide groove 73.

[0045] like Figure 5 As shown, after the protective tube 1 is placed inside the incision, the surgeon lifts the protective tube 1, causing the unfolded flexible septum 4 to adhere to the inner layer of the skin around the incision. Then, the pressure plate 7 is slowly lowered along the protective tube 1. Once the pressure plate 7 is in a suitable position for the surgical procedure, the two push handles 74 are pushed inwards. At this point, the abutment plate 71 is inserted into the corresponding recess 101. The flexible septum 4 and the pressure plate 7 then form an effective holding mechanism. Once the pressure plate 7 is fixed, the pressure from the flexible septum 4 and the pressure plate 7 is evenly transmitted to the skin around the incision. This holding method can exert a certain squeezing effect on the tiny blood vessels on the skin surface, promoting vascular closure, thereby effectively avoiding bleeding from the surrounding skin caused by the surgical procedure and ensuring a clear surgical field.

[0046] It is worth noting that, due to the elasticity of the skin, when the pressure plate 7 is precisely inserted into the recess 101, the skin around the incision will exert an upward force on the pressure plate 7 due to elastic deformation. The upward force of the skin, combined with the conical structure of the protective cylinder 1, forms a wedge-like tightening effect, allowing the pressure plate 7 to be firmly inserted into the recess 101 and stably fixed in the current position.

[0047] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. An incision isolation device for use in endoscopic surgery, characterized in that, include: The protective cylinder (1) has an operating channel (3) inside. The body of the protective cylinder (1) has a hollow structure, forming a closed cavity (2). A flexible partition (4) is connected to the bottom of the protective cylinder (1), and an elastic ring (5) is fixed around the periphery of the flexible partition (4). At least one pull rope (6) is provided, which consists of an end (61), a middle part (62) and a traction part (63). The middle part (62) is located in a closed cavity (2). The end (61) passes through the protective cylinder (1) and the operating channel (3) and is connected to the bottom of the elastic ring (5). The traction part (63) passes through and is positioned above the protective cylinder (1). Pressure plate (7), which can slide vertically along the outer wall of the protective cylinder (1).

2. An incision isolation device for use in endoscopic surgery according to claim 1, characterised in that: Each pull cord (6) has an inverted "U" shape, with two ends (61), two middle parts (62), and an arc-shaped traction part (63).

3. An incision isolation device for use in endoscopic surgery according to claim 2, characterised in that: The protective cylinder (1) is equipped with two pull ropes (6), and the four sets of ends (61) of the two pull ropes (6) are arranged in a rectangular shape.

4. An incision isolation device for use in endoscopic surgery according to claim 1, characterized in that: The protective cylinder (1) has an inverted conical structure.

5. An incision isolation device for use in endoscopic surgery according to claim 1, characterized in that: The outer wall of the protective cylinder (1) is provided with at least one set of recesses (101); the inside of the pressure plate (7) is provided with at least one set of abutment plates (71) that can slide towards the center point of the pressure plate (7), and the abutment plates (71) are adapted to be inserted into the recesses (101).

6. An incision isolation device for use in endoscopic surgery according to claim 5, characterised in that: The pressure plate (7) has two symmetrical movable cavities (72) and a sliding groove (73) inside. Each set of movable cavities (72) and sliding grooves (73) are connected to each other. The abutment plate (71) is movably arranged in the movable cavity (72). The top surface of the abutment plate (71) passes through the sliding groove (73) and is fixedly connected to a push handle (74). The push handle (74) is slidably arranged inside the sliding groove (73).

7. An incision isolation device for use in endoscopic surgery according to claim 1, characterized in that: An air pipe (8) is provided inside the protective cylinder (1). One end of the air pipe (8) passes through and extends to the top of the protective cylinder (1), and the other end of the air pipe is connected to the bottom surface of the protective cylinder (1).

8. An incision isolation device for use in endoscopic surgery according to claim 1, characterized in that: A flexible duckbill valve (9) is provided inside the operating channel (3).

9. An incision isolation device for use in endoscopic surgery according to claim 3, characterized in that: The top surface of the protective cylinder (1) is fixed with two sets of mirror-arranged bosses (10), and the middle part (62) of each pull rope (6) is respectively locked outside the bosses (10).

10. An incision isolation device for use in endoscopic surgery according to claim 1, characterized in that: Both the protective cylinder (1) and the pressure plate (7) are made of polyethylene.

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