A laparoscope intestinal pressing plate with lighting function for small incision suture

Abstract

The application discloses a laparoscope intestinal pressing plate with illumination function for small incision suturing, and relates to the technical field of surgical operation instruments.The laparoscope intestinal pressing plate comprises a rod body, which is hollow and has an elongated structure; a circular lifting disc, which is movably sleeved in the rod body; and a pressing plate assembly, which is connected to the bottom of the circular lifting disc and comprises at least two retractable supporting skeletons and a flexible film arranged on the supporting skeletons; and a push-pull rod, which is movably arranged on the circular lifting disc in an axial direction and extends to the outside of the rod body at the top end; the push-pull rod can drive the circular lifting disc to move in the axial direction of the rod body under the drive of external force, so that the supporting skeletons are radially retracted or expanded relative to the rod body; when the supporting skeletons are expanded, the flexible film is tensioned to form a pressing plate working surface for pressing an intestinal canal; and the laparoscope intestinal pressing plate is designed to be retractable and integrated with illumination, so that the instrument can conveniently pass through a small incision and provide local illumination and stable operation space in the body, and the safety and convenience of small incision suturing operation are improved.

Description

Technical Field

[0001] This invention relates to the field of surgical instruments, specifically to a laparoscopic decompression plate with illumination function for suturing small incisions. Background Technology

[0002] Trocar hernia (TSH) is a common iatrogenic complication after laparoscopic surgery, with an incidence of approximately 1.5% to 1.8%. It mainly occurs at trocar holes ≥10mm in diameter and can lead to serious consequences such as intestinal obstruction and intestinal necrosis. The "Chinese Expert Consensus on Suturing Techniques and Suture Material Selection in Laparoscopic Hernia and Abdominal Wall Surgery (2021 Edition)" clearly states that all trocar holes ≥10mm in diameter and 5mm trocar holes with risk factors for incisional hernia should be closed along the fascia layer. Currently, commonly used trocar hole closure techniques include direct visualization suturing closure and closure using specialized suturing devices. Direct visualization suturing closure is widely used in primary care hospitals due to its simplicity and lack of the need for additional instruments.

[0003] However, existing direct-vision suturing techniques have significant shortcomings: the operating field is limited, relying on the surgeon's experience, and there is a high risk of accidental injury to the intestines and blood vessels, especially in deep or peripheral areas; there is a lack of intraoperative protection, as traditional rigid intestinal compressive boards cannot effectively push open deep tissues without widening the incision, resulting in a high risk of needle pricks; at the same time, the lack of local lighting affects the accuracy of suturing; in addition, incomplete fascial apposition leads to uneven healing quality, especially in high-risk groups such as obese and diabetic patients, making it difficult to effectively reduce the risk of trocar hernia. Summary of the Invention

[0004] The purpose of this invention is to provide a laparoscopic intestinal depressor with illumination function for suturing small incisions, aiming to solve the comprehensive problems of dim vision, lack of effective intestinal protection devices, and difficulty in operating instruments within small incisions in existing direct-vision puncture and suturing techniques.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laparoscopic depressor plate with illumination function for suturing small incisions, comprising a rod body, which is hollow inside and has a slender structure;

[0006] A circular lifting plate is movably fitted inside the rod body;

[0007] The pressure plate assembly, connected to the bottom of the circular lifting plate, includes at least two retractable support frames and a flexible membrane covering the support frames;

[0008] A push-pull rod is axially movable through the circular lifting plate, with its top end extending to the outside of the rod body;

[0009] The push-pull rod can drive the circular lifting plate to move along the axial direction of the rod under external force, thereby causing the support frame to retract or expand radially relative to the rod. When the support frame expands, the flexible membrane is stretched to form a pressure plate working surface for compressing the intestinal tract.

[0010] An illumination unit, disposed on top of the flexible membrane, is used to provide illumination to the area above the working surface of the pressure plate.

[0011] Furthermore, the lighting unit is a self-storing light material layer, which is attached to the upper surface of the flexible film, and the self-storing light material layer is made of rare earth long afterglow luminescent material.

[0012] Furthermore, the rod body is composed of a first connecting rod and a second connecting rod connected coaxially. The top of the first connecting rod is provided with annularly spaced docking slots, and the bottom of the second connecting rod is provided with an arc-shaped plug plate that mates with the docking slots.

[0013] Furthermore, the inner wall of the first connecting rod is provided with annularly distributed limiting grooves, the outer wall of the circular lifting plate is provided with a limiting block that slides with the limiting grooves, the bottom inner wall of the first connecting rod is provided with an annular anti-detachment groove, and the annular anti-detachment groove is provided with an anti-slip layer that movably fits with the support frame.

[0014] Furthermore, the support frame is arranged in a ring shape. When the flexible membrane is fully unfolded, the support frame as a whole is in the shape of an outwardly opening trumpet. The flexible membrane is made of opaque medical silicone or rubber film, and the working surface of the pressure plate is a concave circle.

[0015] Furthermore, a rotating disk is fixedly provided at the bottom of the push-pull rod, the diameter of the rotating disk is larger than the diameter of the push-pull rod, and the top of the circular lifting disk is provided with a receiving groove with a top opening, the vertical cross-section of the receiving groove is stepped, and the rotating disk is movably accommodated in the receiving groove.

[0016] Furthermore, the push-pull rod is provided with an external thread section, and the inner wall of the second connecting rod is fixedly provided with a threaded ring, and the external thread section is threadedly engaged with the threaded ring.

[0017] Furthermore, the top of the push-pull rod is provided with a handle.

[0018] Compared with existing technologies, this invention provides a laparoscopic intestinal compression plate with illumination function for small incision suturing. By innovatively combining a retractable compression plate assembly with a built-in illumination unit, it avoids multiple difficulties in terms of operational safety, suture quality, and intraoperative protection associated with existing direct-vision puncture-and-grab suturing techniques. Its retractable design allows instruments to pass through tiny puncture-and-grab holes in a slender form and reliably unfold at the target location within the body to form a stable compression working surface. This effectively pushes aside and compresses deep intestinal tissue, establishing a physical isolation barrier between the suture needle and the intestinal tract, avoiding collateral damage caused by instrument introduction, and also avoiding the problem that traditional rigid intestinal compression plates cannot be effectively unfolded within small incisions.

[0019] Meanwhile, the integrated lighting unit on top of the flexible membrane provides localized illumination to the suturing area directly, eliminating the need for additional light sources or fiber optic guidance. This allows surgeons to operate without blindness, providing a clear surgical field and improving the precision of needle depth and spacing control. This integrated design simplifies the surgical procedure, reduces instrument changes and operational steps, and creates a safe operating space while directly reducing the risk of accidental injury to deep bowel segments during suturing. It also improves the quality of fascial apposition and healing, thereby reducing the occurrence of trocar hernias and related complications. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the unfolded state of a laparoscopic depressor plate with illumination function for small incision suturing provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a laparoscopic depressor plate with illumination function for small incision suturing in the storage state provided in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the skeleton and flexible membrane components provided in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the disassembled structure of the flexible film and self-storing light material layer provided in an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the first connecting rod component structure provided in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of components such as the second connecting rod and the push-pull rod provided in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Rod body; 101. First connecting rod; 102. Second connecting rod; 2. Circular lifting plate; 3. Support frame; 4. Flexible membrane; 401. Pressure plate working surface; 5. Push-pull rod; 6. Self-storing light material layer; 7. Docking slot; 8. Arc-shaped plug-in plate; 9. Limiting groove; 10. Limiting block; 11. Annular anti-detachment groove; 12. Anti-slip layer; 13. Rotating plate; 14. Receiving groove; 15. External thread part; 16. Threaded ring; 17. Handle. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] As attached Figure 1 To be continued Figure 6 As shown:

[0031] Example:

[0032] This invention provides a laparoscopic depressor plate with illumination function for small incision suturing, comprising a rod 1, which is hollow inside and has a slender structure;

[0033] A circular lifting plate 2 is movably sleeved inside the rod body 1;

[0034] The pressure plate assembly, connected to the bottom of the circular lifting plate 2, includes at least two retractable support frames 3 and a flexible membrane 4 covering the support frames 3;

[0035] The push-pull rod 5 is axially movable through the circular lifting plate 2, and its top end extends to the outside of the rod body 1;

[0036] The push-pull rod 5 can drive the circular lifting plate 2 to move along the axis of the rod 1 under the drive of external force, so that the support frame 3 is radially contracted or expanded relative to the rod 1. When the support frame 3 is expanded, the flexible membrane 4 is stretched to form a pressure plate working surface 401 for compressing the intestinal tract.

[0037] An illumination unit is disposed on the top of the flexible membrane 4 and is used to provide illumination to the area above the working surface 401 of the pressure plate.

[0038] It should be noted that the core of this embodiment lies in the linkage mechanism between the push-pull rod 5, the circular lifting plate 2, and the support frame 3. When the operator pulls the push-pull rod 5 proximally, the push-pull rod 5 moves the circular lifting plate 2 upwards together. Since the support frame 3 is made of alloy material and has a certain degree of flexibility, the upward movement forces the support frame 3 to converge towards the central axis of the rod 1, thereby causing the flexible membrane 4 to fold, making the entire pressure plate assembly present a slender conveying state so as to smoothly pass through the small laparoscopic incision. Conversely, when the push-pull rod 5 is pushed distally, the circular lifting plate 2 moves downwards, and the support frame 3 unfolds radially outwards under the guidance of the internal structure of the rod 1, finally tensioning the flexible membrane 4 to form a stable pressure plate working surface 401 for compressing the intestinal tract. This design allows the instrument to easily pass through narrow channels when needed and quickly form a sufficiently large operating surface after being in place.

[0039] Furthermore, the rod 1 is made of a transparent material, which can effectively reduce visual obstruction during surgery, thereby further improving the surgical field of vision and enhancing safety.

[0040] In this embodiment: the lighting unit is a self-storing light material layer 6, which is attached to the upper surface of the flexible film 4. The self-storing light material layer 6 is made of rare earth long afterglow luminescent material.

[0041] It should be noted that using the self-storing light material layer 6 as the light source eliminates the need for integrated batteries, circuits, or external fiber optic connections within the instrument. Specifically, before surgery begins, the self-storing light material layer 6 can be briefly irradiated and excited using the operating room's shadowless lamp, allowing it to store light energy. Once the instrument is placed in the dark environment inside the body, this material layer continuously releases the stored light energy, providing self-illuminating illumination for several minutes to over ten minutes. This design avoids the problems associated with introducing wires or fiber optics, such as complex instrument structures, difficulties in sterilization, and potential circuit failures within the body, simplifying the overall design. Furthermore, the self-storing light is soft, reducing tissue reflection interference caused by direct strong light in confined spaces, resulting in more uniform lighting in the surgical field.

[0042] Specifically: the rare-earth long afterglow luminescent material is strontium aluminate (SrAl2O3) doped with europium (Eu) and dysprosium (Dy) ions. 4） Base material. During surgical preparation, the pressure plate working surface 401 is fully excited by irradiating it with a conventional surgical lamp with an intensity of not less than 1000 lux for approximately 30 to 60 seconds. After being excited, the material has an initial luminous intensity of not less than 5 mcd / m² in a completely dark environment, and its effective afterglow time (luminance decay to above the threshold of human eye visibility) can be maintained for 5 to 15 minutes to meet the illumination requirements of a single suturing operation.

[0043] Furthermore, the illumination unit is not limited to self-storing light materials and can also be implemented in other ways. For example, in another embodiment, the surface of the flexible membrane 4 can be coated with a fluorescent coating formed by curing a mixture of medical-grade silicone and a safe fluorescent dye. This coating itself does not emit light, but can generate fluorescence of a specific wavelength under the excitation of a laparoscopic cold light source or other external light source, thereby illuminating a local area. This solution also has the advantages of simple structure and no circuit risks.

[0044] In this embodiment: the rod body 1 is composed of a first connecting rod 101 and a second connecting rod 102 connected coaxially. The top of the first connecting rod 101 is provided with annularly spaced docking slots 7, and the bottom of the second connecting rod 102 is provided with an arc-shaped plug plate 8 that cooperates with the docking slots 7.

[0045] It should be noted that the split-type rod design 1 enhances the instrument's practicality and flexibility. The first connecting rod 101 primarily supports the pressure plate assembly and internal motion mechanism, while the second connecting rod 102 mainly serves as an extension of the operating handle 17. The two can be quickly assembled or disassembled via the engaging connection between the arc-shaped plug plate 8 and the docking slot 7. This design allows the overall length of the instrument to be adjusted according to the depth requirements of the surgery; for example, an extended second connecting rod 102 can be connected during deep surgery.

[0046] Furthermore, after use, the first connecting rod 101 and the second connecting rod 102 can be disassembled, and the push-pull rod 5 can be pulled back to allow the support frame 3 and the flexible membrane 4 to be pulled out from the first connecting rod 101 for easy disinfection and maintenance.

[0047] In this embodiment: the inner wall of the first connecting rod 101 is provided with annularly distributed limiting grooves 9, the outer wall of the circular lifting plate 2 is provided with limiting blocks 10 that slide with the limiting grooves 9, the bottom inner wall of the first connecting rod 101 is provided with annular anti-detachment grooves 11, and the annular anti-detachment grooves 11 are provided with anti-slip layers 12 that are movably fitted with the support frame 3.

[0048] It should be noted that the cooperation between the limiting groove 9 and the limiting block 10 ensures that the circular lifting plate 2 can only slide smoothly along the axial direction within the rod 1 without rotation or deviation, thus guaranteeing the accuracy and consistency of the retraction and extension movements of the support frame 3. The annular anti-detachment groove 11 and the internal anti-slip layer 12 serve a dual purpose: firstly, when the support frame 3 is fully extended, its root will abut against or engage with the anti-slip layer 12, using friction to provide a certain self-locking effect, preventing the pressure plate from accidentally retracting due to force when compressing tissue, thereby improving the stability of the working state; secondly, it defines the limit position of the extension of the support frame 3, avoiding mechanical damage that may be caused by over-extension.

[0049] In this embodiment: the support frame 3 is arranged in a ring shape. When the flexible membrane 4 is fully unfolded, the support frame 3 is in the shape of an outwardly opening trumpet. The flexible membrane 4 is made of opaque medical silicone or rubber film. The working surface 401 of the pressure plate is a concave circle.

[0050] It should be noted that the trumpet-shaped supporting framework 3 forms a near-dome-like spatial structure. The flexible membrane 4 covering it then forms a concave circular working surface. This concave curved shape is more conducive to the adhesion and movement of tissues such as the intestines, and compared with a flat pressure plate, it can more effectively create a stable operating space with a certain depth under the peritoneum. At the same time, the opaque flexible membrane 4 can block the direct light from the shadowless lamp above, reducing its reflection and glare below. Combined with the upward illumination from the top self-light-storing material layer 6, the suture needles and other operating targets are more clearly visible in the dark background, improving the contrast of the surgical field.

[0051] In this embodiment: a rotating disk 13 is fixedly provided at the bottom of the push-pull rod 5. The diameter of the rotating disk 13 is larger than the diameter of the push-pull rod 5. The top of the circular lifting disk 2 is provided with a receiving groove 14 with a top opening. The vertical cross section of the receiving groove 14 is stepped. The rotating disk 13 is movably accommodated in the receiving groove 14.

[0052] It should be noted that the rotating disk 13 and the stepped receiving groove 14 cooperate to form a reliable thrust transmission mechanism. When the push-pull rod 5 is pushed, the bottom surface of the rotating disk 13 contacts the bottom step surface of the receiving groove 14, thereby effectively transmitting the thrust to the circular lifting disk 2, driving it to descend and unfold the pressure plate. When the push-pull rod 5 is pulled, the top surface or side surface of the rotating disk 13 may contact the upper step or inner wall of the receiving groove 14, transmitting the pulling force to drive the lifting disk to ascend and retract the pressure plate. This design allows for a certain amount of movement or relative rotation between the push-pull rod 5 and the circular lifting disk 2, while ensuring the effective transmission of axial force, making the structure more durable and reliable.

[0053] In this embodiment: the push-pull rod 5 is provided with an external threaded portion 15, and the inner wall of the second connecting rod 102 is fixedly provided with a threaded ring 16, and the external threaded portion 15 is threadedly engaged with the threaded ring 16.

[0054] It should be noted that the use of a threaded drive provides precise and stable displacement control. The operator can finely adjust the axial position of the circular lifting plate 2 by rotating the push-pull rod 5, thereby fine-tuning the degree of unfolding of the pressure plate working surface 401 and the amount of pressure applied. This spiral propulsion method is self-locking; once rotation stops, the pressure plate's state is locked, eliminating the need for continuous external force from the operator, reducing the operator's workload, and ensuring stable pressure during suturing.

[0055] In this embodiment, the top of the push-pull rod 5 is provided with a handle 17.

[0056] It should be noted that handle 17 provides the operator with a comfortable grip and point of force application. Its design typically takes ergonomics into account, facilitating complex operations such as pushing, pulling, and rotating. The presence of handle 17 makes single-handed operation of the instrument possible, allowing the surgeon to simultaneously perform needle holding, suturing, and other operations with their other hand. Handle 17 can also be equipped with anti-slip textures or markings that distinguish it from other instruments to enhance maneuverability and instrument identification in moist surgical environments.

[0057] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A laparoscopic depressor plate with illumination function for suturing small incisions, characterized in that, include: The rod (1) is hollow inside and has a slender structure; A circular lifting plate (2) is movably fitted inside the rod body (1); The pressure plate assembly is connected to the bottom of the circular lifting plate (2) and includes at least two retractable support frames (3) and a flexible membrane (4) covering the support frames (3). The push-pull rod (5) is axially movable through the circular lifting plate (2), and its top end extends to the outside of the rod body (1); The push-pull rod (5) can drive the circular lifting plate (2) to move along the axial direction of the rod (1) under the drive of external force, so that the support frame (3) is radially contracted or expanded relative to the rod (1). When the support frame (3) is expanded, the flexible membrane (4) is stretched to form a pressure plate working surface (401) for compressing the intestine. An illumination unit is disposed on the top of the flexible membrane (4) for providing illumination to the area above the working surface (401) of the pressure plate.

2. The laparoscopic intestinal depressor with illumination function for small incision suturing according to claim 1, characterized in that, The lighting unit is a self-storing light material layer (6), which is attached to the upper surface of the flexible film (4). The self-storing light material layer (6) is made of rare earth long afterglow luminescent material.

3. A laparoscopic intestinal depressor with illumination function for small incision suturing according to claim 1, characterized in that, The rod body (1) is composed of a first connecting rod (101) and a second connecting rod (102) connected coaxially. The top of the first connecting rod (101) is provided with annularly spaced docking slots (7), and the bottom of the second connecting rod (102) is provided with an arc-shaped plug plate (8) that cooperates with the docking slots (7).

4. A laparoscopic intestinal depressor with illumination function for small incision suturing according to claim 3, characterized in that, The inner wall of the first connecting rod (101) is provided with a ring-shaped limiting groove (9), the outer wall of the circular lifting plate (2) is provided with a limiting block (10) that slides with the limiting groove (9), the bottom inner wall of the first connecting rod (101) is provided with a ring-shaped anti-detachment groove (11), and the ring-shaped anti-detachment groove (11) is provided with an anti-slip layer (12) that movably fits the support frame (3).

5. A laparoscopic intestinal depressor with illumination function for small incision suturing according to claim 1, characterized in that, The supporting frame (3) is arranged in a ring. When the flexible membrane (4) is fully unfolded, the supporting frame (3) is in the shape of an outwardly opening trumpet. The flexible membrane (4) is made of opaque medical silicone or rubber film. The working surface (401) of the pressure plate is a concave circle.

6. A laparoscopic intestinal depressor with illumination function for small incision suturing according to claim 1, characterized in that, The bottom of the push-pull rod (5) is fixedly provided with a rotating disk (13), the diameter of the rotating disk (13) is larger than the diameter of the push-pull rod (5), the top of the circular lifting disk (2) is provided with a receiving groove (14) with a top opening, the vertical cross section of the receiving groove (14) is stepped, and the rotating disk (13) is movably accommodated in the receiving groove (14).

7. A laparoscopic depressor plate with illumination function for small incision suturing according to claim 3, characterized in that, The push-pull rod (5) is provided with an external thread section (15), and the inner wall of the second connecting rod (102) is fixedly provided with a threaded ring (16), and the external thread section (15) is threadedly engaged with the threaded ring (16).

8. A laparoscopic depressor plate with illumination function for small incision suturing according to claim 7, characterized in that, The top of the push-pull rod (5) is provided with a handle (17).

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