Digestive tract soft tissue grasping clamp with electric cutting effect

Abstract

The invention relates to the technical field of medical apparatus and instruments, and discloses a digestive tract soft tissue grasping clamp with an electric cutting effect, which comprises a shell, grasping forceps, a control wire, a handle and a circular ring, a transmission mechanism is arranged in the shell to drive the grasping forceps to open and close, and an electric knife is arranged at one end of the grasping forceps and connected with a high-frequency electrode host to realize efficient cutting and local hemostasis; the handle controls opening and closing of the grasping forceps through the finger control ring, and 360-degree rotation adjustment of the grasping forceps is achieved through the circular ring. Through the compact structural design, the operation flexibility and the cutting efficiency are improved, the operation time is remarkably shortened, the bleeding risk is remarkably reduced, the device is suitable for soft tissue grabbing and cutting in minimally invasive surgery, and the important clinical application value is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a digestive tract soft tissue grasping clamp with an electric cutting effect. Background Art

[0002] In modern minimally invasive surgery, grasping, cutting and hemostasis of digestive tract soft tissue are common key steps, and their efficiency and accuracy directly affect the surgical effect and the patient's postoperative recovery.

[0003] Traditional digestive tract soft tissue graspers usually only have a single mechanical grasping function, and in actual operation, they need to be coordinated with other independent electrocautery or hemostasis equipment to complete complex surgical tasks. This multi-device collaborative approach not only increases the difficulty and time cost of the operation, but may also cause problems such as tissue damage or untimely bleeding control, affecting the safety and efficiency of the operation. In addition, the design of existing graspers often lacks flexible angle adjustment capabilities, making it difficult to meet the operational requirements in different surgical scenarios, especially when performing delicate operations in narrow cavities.

[0004] Therefore, developing a digestive tract soft tissue grasper that integrates efficient electro-cutting and local hemostasis, while also offering precise opening and closing control and 360-degree rotational adjustment, has become a pressing technical challenge in minimally invasive surgery. The development of such a device will significantly improve the convenience and safety of surgical procedures, providing a more reliable solution for clinical practice. Summary of the Invention

[0005] The present invention addresses the shortcomings of existing digestive tract soft tissue clamps in minimally invasive surgery, such as low cutting efficiency, poor hemostasis effect, and insufficient operational flexibility. To this end, the present invention adopts the following technical solutions:

[0006] The present invention provides a digestive tract soft tissue grasper with an electrocuting effect, comprising a housing, grasping forceps, a control wire, a handle, and a ring. The housing houses a transmission mechanism for driving the opening and closing of the grasping forceps; the grasping forceps are mounted at the front end of the housing for grasping and cutting soft tissue; the control wire extends from the housing to the handle, transmitting operating force from the handle to the grasping forceps; the handle is held by the operator to control the opening and closing of the grasping forceps; and the ring is mounted at the end of the handle to enable 360-degree rotation of the grasping forceps.

[0007] Furthermore, the transmission mechanism within the housing includes a gear, a connecting rod, a double-sided toothed rack, a sliding rod, a spring, and a connecting block. The gear is located within the housing and meshes with both sides of the double-sided toothed rack. When the double-sided toothed rack moves axially, it drives the two gears to rotate relative to each other, thereby driving the opening and closing movement of the grasping forceps. One end of the connecting rod is connected to the gear, and the other end is connected to the grasping forceps, converting the rotational movement of the gear into a linear opening and closing movement of the grasping forceps. The sliding rod is connected to the double-sided toothed rack. When the sliding rod moves axially, it compresses the spring, and after release, the reset force of the spring pushes the double-sided toothed rack to move in the reverse direction, thereby realizing the closing movement of the grasping forceps. The connecting block is fixed to one end of the sliding rod and is used to transmit the linear movement of the control wire to the sliding rod, thereby driving the double-sided toothed rack to move.

[0008] Specifically, the grasping forceps include two oppositely arranged clamping arms. One clamping arm is provided with an electrocautery knife, and the other clamping arm is provided with a contact surface that cooperates with the electrocautery knife. The electrocautery knife adopts a hollow design, and a micro electrode plate is embedded inside it and is connected to a high-frequency electrode host through a wire. When the grasping forceps are closed, a high-frequency current is generated between the electrocautery knife and the contact surface, efficiently cutting soft tissues and achieving local hemostasis. The grasping forceps are connected to the gear through a connecting piece, and the connecting piece transmits the rotational movement of the gear to the grasping forceps, thereby realizing the opening and closing movement of the grasping forceps.

[0009] Furthermore, the control wire passes through the housing and is fixedly connected to the connecting block. The linear movement of the control wire is transmitted to the sliding rod through the connecting block, thereby driving the double-sided toothed rack to move. The other end of the control wire is connected to a slider within the handle. When the slider slides along the chute within the handle, it drives the control wire to move, thereby realizing the opening and closing control of the grasping forceps.

[0010] Wherein, the handle includes a chute, a slider, a connecting strip, a bearing, and a control ring. The chute is located on the inner wall of the handle and is used to define the movement trajectory of the slider. Both ends of the connecting strip are fixedly connected to the two sliders respectively, and the center point of the connecting strip is fixedly connected to the control wire. When the slider slides along the chute, it drives the control wire to move through the connecting strip. The inner ring of the bearing is fixedly connected to the slider, and the outer ring is fixed to the control ring. The bearing serves as a rotational axis point, allowing the control ring to rotate while sliding. The control ring is for the finger to pull, driving the control wire to move through the slider and the connecting strip, thereby controlling the opening and closing movement of the grasping forceps.

[0011] Specifically, the ring is installed at the end of the handle and is connected to the handle through a bearing. When the operator manually rotates the ring, the bearing serves as a rotational axis point, driving the handle and the control wire to rotate synchronously, thereby realizing the 360-degree rotation adjustment of the grasping forceps. The design of the ring enables the grasping forceps to adjust the angle according to the surgical requirements, improving the operation flexibility.

[0012] Furthermore, the opening and closing mechanism of the grasping forceps of the present invention is as follows:

[0013] S1. The operator pulls the control ring with a finger, and the control ring drives the slider to slide along the chute;

[0014] S2. When the slider slides, it drives the control wire to move through the connecting bar;

[0015] S3. The movement of the control wire is transmitted to the slide bar through the connecting block. When the slide bar moves axially, it compresses the spring and drives the double-sided toothed rack to move;

[0016] S4. When the double-sided toothed rack moves, it drives the two gears meshing with it to rotate relatively;

[0017] S5. The gears drive the grasping forceps to open through the connecting rod and the connecting piece. When the control ring is released, the spring resets and pushes the slide bar to move in the reverse direction, so that the grasping forceps close. During the closing process, the electrocautery knife cuts the soft tissue.

[0018] Particularly, the rotation mechanism of the grasping forceps of the present invention is as follows:

[0019] S1. The operator manually rotates the circular ring;

[0020] S2. The circular ring drives the handle and the control wire to rotate synchronously through the bearing;

[0021] S3. The rotation of the control wire drives the grasping forceps to perform a 360-degree rotation adjustment. The rotation mechanism enables the grasping forceps to flexibly adjust the angle according to the surgical scenario and adapt to different surgical requirements.

[0022] The beneficial effects of the present invention are as follows: By setting the electrocautery knife to be connected to the high-frequency electrode host, the grasping forceps efficiently cut the soft tissue during the closing process, and at the same time use the high-frequency current to achieve local hemostasis, significantly reducing the operation time and bleeding risk. The precise opening and closing control of the grasping forceps is realized through the control ring, and the 360-degree rotation adjustment of the grasping forceps is realized through the circular ring, adapting to the requirements of various surgical scenarios. The operation process is simplified through the spring reset design, improving the surgical efficiency.

[0023] Particularly, the structure of the present invention is compact and the operation is convenient. It is applicable to the grasping and cutting operations of soft tissues in minimally invasive surgery, and has significant technical advantages and clinical application values. Through the above specific technical solutions, the present invention solves the deficiencies of the existing gastrointestinal soft tissue grasping in terms of cutting efficiency, hemostasis effect and operation flexibility, and provides more reliable medical device support for minimally invasive surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view structural schematic diagram of the present invention;

[0025] Figure 2 It is a sectional structural schematic diagram of the housing of the present invention;

[0026] Figure 3 It is a sectional structural schematic diagram of the handle of the present invention;

[0027] Figure 4 This is a three-dimensional schematic diagram of the cross-sectional structure of the handle of the present invention.

[0028] Among them, 1 is the housing; 11 is the gear; 12 is the connecting rod; 13 is the double-sided toothed rack; 14 is the sliding rod; 15 is the spring; 16 is the connecting block; 2 is the gripper; 21 is the electrocautery knife; 22 is the connecting piece; 3 is the control wire; 4 is the handle; 41 is the chute; 42 is the slider; 43 is the connecting strip; 44 is the bearing; 45 is the control ring; 5 is the circular ring. Specific embodiments

[0029] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0030] The present invention provides a digestive tract soft tissue gripper with an electro-cutting effect, and its specific embodiments will be described in detail in conjunction with Figure 1 to Figure 4 The gripper includes a housing 1, a gripper 2, a control wire 3, a handle 4 and a circular ring 5. Each component realizes the functions of efficiently grasping, cutting and local hemostasis of soft tissues during minimally invasive surgery through precise design and cooperation.

[0031] As Figure 1 shown, the overall structure of the present invention is designed in a streamline shape to meet the operation requirements in the minimally invasive surgery environment. The housing 1 serves as the main support structure, and a complex transmission mechanism is provided inside to drive the opening and closing of the gripper 2. A gear 11, a connecting rod 12, a double-sided toothed rack 13, a sliding rod 14, a spring 15 and a connecting block 16 are installed inside the housing 1, and these components together constitute the opening and closing drive system of the gripper 2. Among them, the gears 11 are located on both sides inside the housing 1 and mesh with the double-sided toothed rack 13. When the double-sided toothed rack 13 moves axially, it drives the two gears 11 to rotate relative to each other, thereby converting linear motion into rotational motion, and finally transmitting it to the gripper 2 through the connecting rod 12 and the connecting piece 22 to realize the opening or closing of the gripper 2. The sliding rod 14 is connected to the double-sided toothed rack 13. When the sliding rod 14 moves axially, it compresses the spring 15. When the external force is released, the spring 15 resets and pushes the sliding rod 14 to move in the reverse direction, thereby driving the double-sided toothed rack 13 to move in the reverse direction and causing the gripper 2 to return to the closed state. The connecting block 16 is fixed to one end of the sliding rod 14 to transmit the linear motion of the control wire 3 to the sliding rod 14, ensuring that the opening and closing actions of the gripper 2 can accurately respond to the operation of the handle 4.

[0032] The gripper 2 is installed at the front end of the housing 1, and its structure is as Figure 1 andFigure 2 As shown, it includes two oppositely arranged clamping arms. An electric scalpel 21 is provided on one clamping arm, and a contact surface cooperating with the electric scalpel 21 is provided on the other clamping arm. The electric scalpel 21 adopts a hollow design, with a micro-electrode sheet embedded inside, and is connected to a high-frequency electrode main unit through a wire. When the grasping forceps 2 closes, a high-frequency current is generated between the electric scalpel 21 and the contact surface, cutting soft tissues and achieving local hemostasis. This design significantly improves the cutting efficiency and reduces the bleeding risk during the operation. The grasping forceps 2 is connected to the gear 11 through a connecting member 22, and the connecting member 22 transmits the rotational movement of the gear 11 to the grasping forceps 2 to complete the opening and closing actions of the grasping forceps 2. The design of the grasping forceps 2 fully considers the requirements of minimally invasive surgery, and its end adopts an elongated structure, facilitating entry into narrow surgical areas.

[0033] The control wire 3 passes through the housing 1 and is fixedly connected to the connecting block 16. Its function is to transmit the operating force of the handle 4 to the transmission mechanism inside the housing 1, thereby controlling the opening and closing actions of the grasping forceps 2. The other end of the control wire 3 is connected to the slider 42 inside the handle 4. When the slider 42 slides along the chute 41 inside the handle 4, it drives the control wire 3 to move. The structure of the handle 4 is as Figure 3 and Figure 4 shown. Its wall surface is designed with a chute 41, a slider 42, a connecting bar 43, a bearing �, and a control ring ㅁ. The chute 41 is located on the inner wall of the handle 4 and is used to define the movement trajectory of the slider 42. Both ends of the connecting bar 43 are fixedly connected to the two sliders 42 respectively, and the center point of the connecting bar 43 is fixedly connected to the control wire 3. When the slider 42 slides along the chute 41, it drives the control wire 3 to move through the connecting bar 43, thereby realizing the opening and closing control of the grasping forceps 2. The inner ring of the bearing � is fixedly connected to the slider 42, and the outer ring is fixed to the control ring ㅁ. The bearing � serves as a rotation axis point, allowing the control ring ㅁ to rotate while sliding. The control ring ㅁ is for the finger to pull, driving the control wire 3 to move through the slider 42 and the connecting bar 43, thereby controlling the opening and closing actions of the grasping forceps 2.

[0034] Specifically, the circular ring 5 is installed at the end of the handle 4, and the circular ring 5 is connected to the handle 4 through the bearing �. When the operator manually rotates the circular ring 5, the bearing � serves as a rotation axis point, driving the handle 4 and the control wire 3 to rotate synchronously, thereby realizing the 360-degree rotation adjustment of the grasping forceps 2. The design of the circular ring 5 enables the grasping forceps 2 to adjust the angle according to the surgical requirements, improving the operation flexibility. For example, in some complex surgical scenarios, the doctor needs to adjust the angle of the grasping forceps 2 to adapt to different anatomical structures. At this time, by rotating the circular ring 5, the angle adjustment can be quickly completed without repositioning the instrument.

[0035] The specific operating principle of the present invention is as follows:

[0036] S1. The operator pulls the control ring ㅁ with a finger, and the control ring ㅁ drives the slider 42 to slide along the chute 41;

[0037] S2. When the slider 42 slides, it drives the control wire 3 to move through the connecting bar 43;

[0038] S3. The movement of the control wire 3 is transmitted to the slide bar 14 through the connecting block 16. When the slide bar 14 moves axially, it compresses the spring 15 and drives the double-sided toothed rack 13 to move;

[0039] S4. When the double-sided toothed rack 13 moves, it drives the two meshing gears 11 to rotate relative to each other;

[0040] S5. The gear 11 drives the gripper 2 to open through the connecting rod 12 and the connecting piece 22.

[0041] In addition, when the control ring 45 is released, the spring 15 resets and pushes the slide bar 14 to move in the reverse direction, so that the gripper 2 closes. During the closing process, the electrocautery knife 21 cuts the soft tissue.

[0042]

[0043]

[0044] S1. The operator manually rotates the ring 5;

[0044] S2. The ring 5 drives the handle 4 and the control wire 3 to rotate synchronously through the bearing 44;

[0045] S3. The rotation of the control wire 3 drives the gripper 2 to perform a 360-degree rotation adjustment. This design enables the gripper 2 to flexibly meet the requirements of different surgical scenarios.

[0046] In practical applications, the operation process of the present invention can be further refined. For example, in a minimally invasive gastrointestinal surgery, the doctor first inserts the gripper 2 into the patient's body, adjusts the angle of the gripper 2 by rotating the ring 5 so that it is aligned with the target soft tissue. Subsequently, the doctor pulls the control ring 45 with a finger. The control ring 45 drives the slider 42 to slide along the chute 41. The slider 42 transmits the operating force to the transmission mechanism inside the housing 1 through the connecting bar 43 and the control wire 3. The slide bar 14 in the transmission mechanism moves axially, compresses the spring 15 and drives the double-sided toothed rack 13 to move. The movement of the double-sided toothed rack 13 drives the two meshing gears 11 to rotate relative to each other. The gear 11 transmits the rotational movement to the gripper 2 through the connecting rod 12 and the connecting piece 22, causing the gripper 2 to open. When the gripper 2 opens to the appropriate position, the doctor slowly releases the control ring 45. The spring 15 resets and pushes the slide bar 14 to move in the reverse direction, so that the gripper 2 closes. During the closing process, a high-frequency current is generated between the electrocautery knife 21 and the contact surface, cutting the soft tissue and achieving local hemostasis. The entire operation process is smooth and precise, significantly shortening the operation time and reducing the operation risk.

[0047] The design of the present invention also fully considers the operation convenience and safety. For example, the shape of the handle 4 conforms to the ergonomic design, which is convenient for doctors to hold for a long time without fatigue. The matching design of the chute 41 and the slider 42 ensures the smooth and reliable sliding of the control ring 45, avoiding the out-of-control of the grasping forceps 2 caused by operation errors. In addition, the elastic coefficient of the spring 15 is precisely calculated, which can not only provide sufficient reset force, but also will not increase the operation difficulty due to excessive elastic force. The connection between the electrocautery knife 21 and the high-frequency electrode host adopts insulation protection measures to prevent the leakage of high-frequency current and ensure the safety of the surgical process.

[0048] In summary, the present invention integrates the electrocautery knife 21, high-frequency current technology and 360-degree rotation adjustment function, and solves the problems of low cutting efficiency, poor hemostasis effect and insufficient operation flexibility of the existing digestive tract soft tissue grasping and clamping. Its compact structure design and convenient operation method make it applicable to a variety of minimally invasive surgical scenarios, providing more reliable medical device support for clinicians.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digestive tract soft tissue grasping clip with an electro-cutting effect, characterized in that: It includes a housing (1), a gripper (2), a control wire (3), a handle (4) and a ring (5). A transmission mechanism is provided inside the housing (1) for driving the opening and closing movement of the gripper (2). The gripper (2) is installed at the front end of the housing (1). The control wire (3) extends from the housing (1) to the handle (4) for transmitting the operating force of the handle (4) to the gripper (2). The handle (4) is for the operator to hold and complete the opening and closing control of the gripper (2). The ring (5) is installed at the end of the handle (4) for realizing 360-degree rotation adjustment of the gripper (2).

2. The digestive tract soft tissue grasping clip with an electric cutting effect according to claim 1, wherein The transmission mechanism inside the housing (1) includes a gear (11), a connecting rod (12), a double-sided toothed rack (13), a sliding rod (14), a spring (15) and a connecting block (16). The gear (11) meshes with the double-sided toothed rack (13). When the double-sided toothed rack (13) moves axially, it drives two gears (11) to rotate relative to each other, thereby driving the opening and closing movement of the gripper (2).

3. The digestive tract soft tissue grasping clip with an electric cutting effect according to claim 2, characterized in that One end of the connecting rod (12) is connected to the gear (11), and the other end is connected to the gripper (2). The rotational movement of the gear (11) is converted into the linear opening and closing movement of the gripper (2). The sliding rod (14) is connected to the double-sided toothed rack (13), and the spring (15) is compressed when the sliding rod (14) moves axially.

4. A digestive tract soft tissue grasping clip with an electric cutting effect according to claim 1, characterized in that, The gripper (2) includes two oppositely arranged clamping arms. An electric cutting knife (21) is provided on one clamping arm, and a contact surface cooperating with the electric cutting knife (21) is provided on the other clamping arm. The electric cutting knife (21) adopts a hollow design, and a micro electrode sheet is embedded inside it and is connected to a high-frequency electrode host through a wire.

5. A digestive tract soft tissue grasping clip with an electric cutting effect according to claim 4, characterized in that, The gripper (2) is connected to the gear (11) through a connecting piece (22). The connecting piece (22) transmits the rotational movement of the gear (11) to the gripper (2), thereby realizing the opening and closing movement of the gripper (2).

6. A digestive tract soft tissue grasping clip with an electric cutting effect according to claim 1, characterized in that, The handle (4) includes a chute (41), a slider (42), a connecting bar (43), a bearing (44) and a control ring (45). The chute (41) is located on the wall surface of the handle (4), and there are two chutes (41) which are symmetrically arranged for defining the movement track of the slider (42). The two ends of the connecting bar (43) are respectively fixedly connected to the two sliders (42), and the center point of the connecting bar (43) is fixedly connected to the control wire (3).

7. A digestive tract soft tissue grasping clip with an electric cutting effect according to claim 6, characterized in that, The inner ring of the bearing (44) is fixedly connected to the slider (42), and the outer ring is fixed to the control ring (45). The bearing (44) serves as a rotation axis point, allowing the control ring (45) to rotate while sliding.

8. A digestive tract soft tissue grasping clip with an electric cutting effect according to claim 1, characterized in that The ring (5) is connected to the handle (4) through a bearing (44). When the operator manually rotates the ring (5), the bearing (44) serves as a rotation axis point, driving the handle (4) and the control wire (3) to rotate synchronously, thereby realizing 360-degree rotation adjustment of the gripper (2).

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