Gun type lymph node forceps with opening perpendicular to opening and closing of forceps handles

Abstract

The utility model discloses gun-type lymph node forceps with openings perpendicular to opening and closing of forceps handles, and belongs to the technical field of medical instruments. According to the technical scheme, the forceps comprise forceps bodies, forceps handles, forceps heads and a sliding block, the forceps bodies comprise the lower forceps body and the upper forceps body, the forceps handles comprise the movable forceps handle and the fixed forceps handle which are oppositely arranged, the fixed forceps handle is fixed to the lower forceps body, the rear end of the upper forceps body is hinged to the sliding block, and the sliding block is connected with the movable forceps handle; the forceps head comprises a fixed forceps head and a movable forceps head, the fixed forceps head is fixed on the lower forceps body, and the movable forceps head is hinged with the upper forceps body. The gun-type lymph node forceps have the advantages that the gun-type lymph node forceps are efficient and accurate in clamping capacity, stable in guiding mechanism, high in opening and closing stability, of a pistol loading type structure, flexible in hinge structure, smooth in opening and closing experience, compact in operation design and safe and reliable in performance; and great convenience and guarantee are provided for surgical operation of small tissues such as lymph nodes and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a gun-type lymph node forceps with an opening and a handle that open and close perpendicularly. Background Art

[0002] The gun-type lymph node forceps is an instrument used for lymph node biopsy surgery. Its technical background is closely related to lymph node examination and cancer treatment. Lymph nodes are important tissues in the body and play a key role in the immune system. Therefore, examining and evaluating lymph nodes is crucial for cancer diagnosis and analysis. However, traditional surgical methods are very harmful to the body and require a long recovery period. To better manipulate lymph nodes, lymph node forceps have emerged. Compared to traditional clamping tools, using lymph node forceps to manipulate lymph nodes is less traumatic to the body. This instrument, similar to a pair of pliers, has an openable and retractable clamping head and is primarily used for manipulation of lymph nodes during surgery.

[0003] The design of lymph node forceps makes lymph node biopsy procedures simpler and more precise. They can be performed through small incisions or puncture wounds, reducing trauma and recovery time. For example, designs with publication / announcement numbers CN105640612A and CN205626029U significantly reduce compression during lymph node grasping and clamping, preventing tumor cells within the lymph nodes from being squeezed and metastasized to other tissues. This facilitates safe surgery, saves time and effort, and reduces the workload of medical personnel. While these technologies have alleviated the aforementioned issues to some extent, such as reducing lymph node compression and improving operational convenience, existing lymph node forceps technology still has some limitations. The main issues focus on surgical precision, ease of operation, and the impact on the patient. Traditional lymph node forceps can cause tissue damage during grasping and removal of lymph nodes due to difficulty controlling the clamping force, particularly squeezing the delicate lymph node structure, increasing surgical risks and the potential for complications. Furthermore, due to varying viewing angles and limited visual field, doctors may encounter challenges during operation, impacting surgical efficiency and outcomes. Among them, the Chinese utility model patent with announcement number CN205626029U introduces a multifunctional lymph node forceps, which changes the clamp head of the lymph node forceps into an arc-shaped mesh, making the clamp head convenient for single-port thoracoscopic surgery; it greatly reduces the squeezing of lymph nodes when grasping and clamping lymph nodes, but the clamp head and the handle are coaxial, which makes the surgical operation more inconvenient.

[0004] Among other existing technologies, Chinese utility model patent publication number CN209172425U introduces a lymph node forceps with a curved head, but the degree of curvature is small, and the field of view during actual use is still relatively narrow. Chinese utility model patent publication number CN212521856U introduces a surgical lymph node forceps that can be used flexibly under small-invasive surgery conditions. The opening and closing function of the forceps head is achieved through the sliding connection between the forceps body and the slide, but the curvature of the forceps head is still relatively limited, and the offset from the axis of the forceps handle is small. The lymph node forceps proposed in the above patents have a slender body portion and may lack sufficient clamping strength and structural stability. In addition, the curved forceps solution with publication numbers CN209172425U and CN212521856U does not provide a clear indication of the doctor's surgical field of view compared to the straight forceps solution with publication number CN205626029U.

[0005] In summary, the lymph node forceps in the prior art still have much room for improvement in terms of clamping force control, surgical accuracy, operational convenience and improved visual field.

[0006] Faced with these challenges, there is an urgent need for a different form of lymph node forceps that can overcome the limitations of existing technologies and provide a more precise, safer, and more humane surgical solution. Utility Model Content

[0007] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a gun-type lymph node forceps with an opening and closing perpendicular to the opening and closing of the forceps handle, aiming to solve the technical problems of the lymph node forceps having a single clamping direction, a single surgical field of view, insufficient clamping force, and possible tissue damage. A new clamping direction is provided for the lymph node forceps, so that the opening and closing direction of the forceps head is perpendicular to the opening and closing direction of the forceps handle.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A gun-type lymph node forceps with an opening that opens and closes perpendicular to the handle, comprising a forceps body, a forceps handle, a forceps head and a slider, wherein the forceps body comprises a lower forceps body and an upper forceps body, the forceps handle comprises a movable forceps handle and a fixed forceps handle that are arranged opposite to each other, the fixed forceps handle is fixed to the lower forceps body, the rear end of the upper forceps body is hinged to the slider, and the slider is connected to the movable forceps handle; the forceps head comprises a fixed forceps head and a movable forceps head, the fixed forceps head is fixed to the lower forceps body, and the movable forceps head is hinged to the upper forceps body.

[0010] Furthermore, at least two guide grooves are provided in the middle of the upper pliers body. The guide grooves are trapezoidal in structure, and each guide groove is equipped with a T-pin for guiding the movement of the upper pliers body.

[0011] Furthermore, the front end of the lower pliers body is provided with a concave structure, and the movable pliers head is hinged to the concave structure of the front end of the lower pliers body through the convex structure of the connecting part thereof.

[0012] Furthermore, the front end of the lower clamp body is also provided with a pin shaft slide groove, the clamp head pin is slidably connected to the pin shaft slide groove, and the clamp head pin is also slidably connected to the clamp head slide groove.

[0013] Furthermore, the rear ends of the upper and lower clamp bodies are both provided with rotation slots for providing rotation for the slider 8 .

[0014] Furthermore, the guide groove includes a large end of the guide groove and a narrow portion of the guide groove, and the large end of the guide groove and the narrow portion of the guide groove are connected.

[0015] Beneficial effects of the utility model:

[0016] Compared with the prior art, the gun-type lymph node forceps with the opening and closing perpendicular to the handle of the utility model has the following technical features and beneficial effects:

[0017] (1) Efficient and precise clamping capability: The forceps head is designed as a fixed forceps head and a movable forceps head, wherein the movable forceps head is hinged to the upper forceps body. This design enables the forceps head to fit tightly when opening and closing, achieving precise clamping of small tissues such as lymph nodes, thereby improving the accuracy and efficiency of surgical operations.

[0018] (2) Stable guiding mechanism: The combination of the trapezoidal guide groove in the middle of the upper body and the T-pin provides a stable guiding mechanism for the movement of the body. This design not only ensures the stability of the body during the opening and closing process, but also reduces the surgical risks caused by shaking or deviation.

[0019] (3) Flexible hinged structure: The concave structure at the front end of the lower pliers body is hinged to the convex structure of the movable pliers head, and the pliers head pin is slidably connected to the pin shaft slide groove and the pliers head slide groove, so that the pliers head part can rotate and slide flexibly, further enhancing the adaptability and operational flexibility of the pliers, and facilitating its use in complex surgical environments; when opening and closing, the upper pliers body drives the movable pliers head to open and close through the pliers head pin, and the pliers head pin moves in the pin shaft slide groove. At the same time, through the sliding contact of the pliers head pin in the pliers head slide groove, the stability of the opening and closing of the pliers head is improved through this gun-like design of the pistol loading structure.

[0020] (4) Smooth opening and closing experience: The rotating slide grooves at the rear ends of the upper and lower clamp bodies provide space for the rotation of the sliders, making the opening and closing of the clamp handles smoother, reducing operational resistance, and improving the fluency of surgical operations.

[0021] (5) Compact structure and easy operation: The overall design is compact, and the opening and closing of the forceps handle are perpendicular, which conforms to ergonomic principles. It allows doctors to easily hold and operate it during surgery, reducing hand fatigue and improving surgical efficiency.

[0022] (6) Safe and reliable: Through sophisticated structural design and material selection, the strength and durability of the forceps are ensured, enabling them to work stably and reliably during surgery, reducing the surgical risks caused by instrument failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0024] Figure 1 This is a schematic diagram of the closed state structure of the utility model;

[0025] Figure 2 This is a partial enlarged cross-sectional view of the pliers head of the utility model;

[0026] Figure 3 A partial enlargement of the loading structure of the pliers head of the utility model Figure 1 ;

[0027] Figure 4 A partial enlargement of the loading structure of the pliers head of the utility model Figure 2 ;

[0028] Figure 5 This is a partial enlarged diagram of the schematic diagram of the closed state of the clamp head of the utility model;

[0029] Figure 6 This is a partial enlargement of the guide groove of the clamp body of the utility model Figure 1 ;

[0030] Figure 7 This is a partial enlargement of the guide groove of the clamp body of the utility model Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the structure of the utility model in the open state.

[0032] Reference numerals in the figure: 1- clamp body, 2- clamp handle, 3- T-pin, 4- clamp head, 5- clamp head pin, 6- guide groove, 7- rotating slide groove, 8- slider, 9- pin shaft slide groove, 10- clamp head slide groove, 11- convex structure, 12- concave structure, 1-1, upper clamp body, 1-2, lower clamp body, 2-1, movable clamp handle, 2-2, fixed clamp handle, 4-1, movable clamp head, 4-2, fixed clamp head, 5-1, through hole, 5-2, clamp head pin, 6-1, large end of guide groove, 6-2, narrow part of guide groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention. Figure 1-8 The gun-type lymph node forceps with the opening and closing perpendicular to the forceps handle are further explained.

[0034] Example 1

[0035] A gun-type lymph node forceps with an opening and a handle that open and close perpendicularly, comprising a forceps body 1, a forceps handle 2, a forceps head 4 and a slider 8, wherein the forceps body 1 comprises a lower forceps body 1-2 and an upper forceps body 1-1, the forceps handle 2 comprises a movable forceps handle 2-1 and a fixed forceps handle 2-2 that are arranged opposite to each other, the fixed forceps handle 2-2 being fixed to the lower forceps body 1-2, the rear end of the upper forceps body 1-1 being hinged to the slider 8, and the slider 8 being connected to the movable forceps handle 2-1; the forceps head 4 comprises a fixed forceps head 4-2 and a movable forceps head 4-1, the fixed forceps head 4-2 being fixed to the lower forceps body 1-2, and the movable forceps head 4-1 being hinged to the upper forceps body 1-1.

[0036] The upper jaw 1-1 is provided with at least two trapezoidal guide slots 6 in the middle. Each guide slot 6 houses a T-pin 3 for guiding the movement of the upper jaw 1-1. A concave structure 12 is provided at the front end of the lower jaw 1-2. The movable jaw 4-1 is hingedly connected to the concave structure 12 at the front end of the lower jaw 1-2 via a convex structure 11 at its connecting portion. A pin slot 9 is also provided at the front end of the lower jaw 1-2. The jaw pin 5-2 is slidably connected to the pin slot 9. The jaw pin 5-2 is also slidably connected to the jaw slot slot 10.

[0037] The rear ends of the upper and lower jaws 1-1 and 1-2 are both provided with a rotation slot 7 for providing rotation for the slider 8. The guide slot 6 includes a large end 6-1 and a narrow portion 6-2, which are connected to each other.

[0038] The working principle and process of the gun-type lymph node forceps are as follows:

[0039] Working principle:

[0040] By moving the movable clamp handle 2-1 up and down, the slider 8 is driven to rotate using the lever principle, thereby driving the upper clamp body 1-1 to move relative to the lower clamp body 1-2.

[0041] The cooperation between the trapezoidal guide groove 6 in the middle of the upper clamp body 1-1 and the T-pin 3 ensures the stability and accuracy of the upper clamp body during movement and prevents deviation or shaking.

[0042] The hinged connection between the movable clamp head 4-1 and the upper clamp body 1-1, and the hinged connection between the convex structure 11 of the connecting part of the movable clamp head 4-1 and the concave structure 12 at the front end of the lower clamp body 1-2, enable the clamp head part to open and close flexibly to adapt to lymph nodes of different shapes and sizes.

[0043] The sliding of the clamp head pin 5 - 2 in the pin shaft slot 9 and the clamp head slot 10 further enhances the flexibility and stability of the clamp head part, ensuring precise control of the clamp head during the clamping process.

[0044] Working process:

[0045] Initial state: The pliers are in a closed state, the movable pliers handle 2-1 fits tightly against the fixed pliers handle 2-2, the upper pliers body 1-1 and the lower pliers body 1-2 are close to each other, and the fixed pliers head 4-2 and the movable pliers head 4-1 are closed to form a small clamping space.

[0046] Opening process: The surgeon grips the fixed forceps handle 2-2 and pushes the movable forceps handle 2-1 upward. The upward movement of the movable forceps handle 2-1 is translated into the rearward movement of the upper forceps body 1-1 relative to the lower forceps body 1-2 by the rotation of the slider 8. During this process, the T-pin 3 slides within the trapezoidal guide groove 6, ensuring smooth and accurate movement of the upper forceps body 1-1.

[0047] Clamping Process: As upper forceps 1-1 moves backward, movable jaw 4-1, via the convex structure 11 at its connecting portion, rotates within the concave structure 12 at the front end of lower forceps 1-2, gradually opening the jaws. Simultaneously, jaw pin 5-2 slides within pin guide slot 9 and jaw guide slot 10, ensuring stability and flexibility during the opening process. When the jaws are fully opened, the surgeon can align the forceps with the target lymph node.

[0048] Closing process: The surgeon reverses the movement of the movable forceps handle 2-1, causing it to move downward. This movement is translated into forward movement of the upper forceps body 1-1 relative to the lower forceps body 1-2 through the rotation of the slider 8. Simultaneously, the T-pin 3 slides in the opposite direction within the trapezoidal guide groove 6. As the upper forceps body 1-1 moves forward, the movable forceps head 4-1 gradually approaches the fixed forceps head 4-2 until the two are tightly closed, clamping the lymph node.

[0049] Stable clamping: During the clamping process, the close fit between the trapezoidal guide groove 6 and the T-pin 3, as well as the flexible hinged and sliding connection of the forceps head, ensures that the forceps can stably and accurately clamp the lymph nodes, providing strong support for surgical operations.

[0050] The utility model's vertical opening and closing gun-type lymph node forceps aims to provide a stronger clamping force through an innovative vertical opening and closing mechanism, providing a new surgical field of view, reducing tissue damage, and improving surgical efficiency, thereby bringing revolutionary changes to lymph node biopsy surgery.

[0051] Example 2

[0052] As a new embodiment, or a supplement to embodiment 1.

[0053] like Figure 1 The vertically opening and closing gun-type lymph node forceps shown in the figure has the following main technical features: a forceps body 1; a forceps handle 2; a T-pin 3; a forceps head 4; a forceps head pin 5; a guide groove 6; a rotating slide 7; a slider 8; a pin shaft slide 9; a forceps head slide 10; a convex structure 11; and a concave structure 12.

[0054] The gun-type lymph node forceps has an opening and closing perpendicular to the handle. The lower body 1-2 is immovable, and the upper body 1-1 is movable. The rear end of the upper body 1-1 is hinged to the slider 8, and the slider 8 is connected to the movable handle 2-1. The middle end of the upper body 1-1 is provided with two guide grooves 6, which cooperate with the T-pin 3. The upper body 1-1 and the movable clamp head 4-1 are hinged. The two ends of the lower body 1-2 are respectively provided with a fixed handle 2-2 and a fixed clamp head 4-2, and the relative positions of the two are provided with a movable handle 2-1 and a movable clamp head 4-1. The rear ends of the upper body 1-1 and the lower body 1-2 are simultaneously provided with a rotating slide groove 7 for the slider 8 to rotate. When the gun-type lymph node forceps is used, by opening and closing the movable handle 2-1, the slider 8 rotates accordingly, driving the upper body 1-1 to slide accordingly, driving the movable clamp head 4-1 to open and close, thereby achieving grasping.

[0055] The movable handle 2-1 moves in a manner similar to loading a pistol during the opening and closing of the lymph node forceps described in this embodiment. Figure 2 As shown, the front end of the lower clamp body 1-2 is provided with a pin shaft slot 9, and the clamp head pin 5-2 slides in this slot and can move in the clamp head slot 10 at the same time. The movable clamp head 4-1 can be driven to open and close by the clamp head pin 5-2. At this time, the pin shaft slot 9 and the clamp head slot 10 play a guiding role at the same time. This form can make the lymph node clamp more powerful. Figure 3 , Figure 4 , Figure 5 As shown, the front end of the lower pliers body 1-2 is a concave structure 12, and the convex structure 11 of the linking part of the movable pliers head 4-1 is hinged to the concave structure 12 at the front end of the lower pliers body 1-2, so that the movement of the movable pliers head 4-1 is more stable and firm.

[0056] At the same time, the lymph node forceps described in this embodiment are provided with guide grooves 6 evenly on the forceps body 1, Figure 5 It can be seen that the T-pin 3 cooperates with the guide groove 6 opened in the upper clamp body 1-1, guiding the movement of the upper clamp body 1-1. The guide groove 6 is designed with a trapezoidal structure. During assembly, the T-pin 3 enters from the large end 6-1 of the guide groove 6. When the lymph node forceps is opened and closed normally, the T-pin 3 slides in the narrow part 6-2 of the guide groove 6, guiding the movement of the upper clamp body 1-1, making the movement of the upper clamp body 1-1 more stable during the opening and closing process of the lymph node forceps, thereby improving the structural strength and reliability.

[0057] The utility model changes the clamping direction so that the opening direction of the forceps head 1 is perpendicular to the opening direction of the forceps handle 2. The lymph node forceps can provide a new intraoperative observation angle, allowing the doctor to see the shape, structure and details of the clamped object more clearly, thereby better evaluating the surgical operation and making accurate decisions.

[0058] Unlike traditional lymph node forceps, the clamping direction of the utility model is perpendicular to the opening and closing direction. During surgery, the operating angle of the horizontal lymph node forceps may be limited. This patent provides a new operating angle for surgery by vertically opening and closing the forceps head.

[0059] The convex-concave matching of the movable forceps head 4-1 and the convex structure 11 and the concave structure 12 of the lower forceps body 1-2, and the guiding design of the pin shaft slide 9 and the forceps head slide 10, make the movement mode similar to loading a pistol, so that the lymph node forceps can grasp the tissue more firmly, thereby improving the safety during the operation.

[0060] The clamping direction of the utility model is perpendicular to the opening and closing direction of the forceps handle, providing a new operation method and visual field for surgery; the front end of the lower forceps body 1-2 is hinged to the movable forceps head 4-1 in a concave-convex structure, and the forceps head connecting portion is hinged to the concave structure 12 at the front end of the lower forceps body 1-2 in a convex shape. When opening and closing, the upper forceps body 1-1 drives the movable forceps head 4-1 to open and close through the forceps head pin 5-2. At this time, the forceps head pin 5-2 moves in the pin shaft slide groove 9. At the same time, the forceps head pin 5-2 slides in the forceps head slide groove 10. This gun-like pistol loading structure improves the stability of the forceps head opening and closing. The T-pin 3 and guide groove 6 designed on the upper and lower forceps bodies make the movement of the lymph node forceps more stable, providing a more secure grip when clamping tissue, reducing the risk of slipping or falling off, and improving the safety of the surgical process.

[0061] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gun-type lymph node forceps with an opening and a handle that open and close perpendicularly, comprising a forceps body (1), a forceps handle (2), a forceps head (4) and a slider (8), characterized in that: The pliers body (1) comprises a lower pliers body (1-2) and an upper pliers body (1-1); the pliers handle (2) comprises a movable pliers handle (2-1) and a fixed pliers handle (2-2) arranged opposite to each other; the fixed pliers handle (2-2) is fixed to the lower pliers body (1-2); the rear end of the upper pliers body (1-1) is hinged to a slider (8); the slider (8) is connected to the movable pliers handle (2-1); the pliers head (4) comprises a fixed pliers head (4-2) and a movable pliers head (4-1); the fixed pliers head (4-2) is fixed to the lower pliers body (1-2); and the movable pliers head (4-1) is hinged to the upper pliers body (1-1).

2. The gun-type lymph node forceps according to claim 1, characterized in that: At least two guide grooves (6) are provided in the middle of the upper clamp body (1-1). The guide grooves (6) are of a trapezoidal structure. Each guide groove (6) is equipped with a T-pin (3) for guiding the movement of the upper clamp body (1-1).

3. The gun-type lymph node forceps according to claim 1, characterized in that: The front end of the lower pliers body (1-2) is provided with a concave structure (12), and the movable pliers head (4-1) is hingedly connected to the concave structure (12) at the front end of the lower pliers body (1-2) via the convex structure (11) of its connecting part.

4. The gun-type lymph node forceps according to claim 1, characterized in that: The front end of the lower clamp body (1-2) is also provided with a pin shaft slide groove (9), the clamp head pin (5-2) is slidably connected to the pin shaft slide groove (9), and the clamp head pin (5-2) is also slidably connected to the clamp head slide groove (10).

5. The gun-type lymph node forceps according to claim 1, characterized in that: The rear ends of the upper clamp body (1-1) and the lower clamp body (1-2) are both provided with a rotating slide groove (7) for providing rotation for the slider (8).

6. The gun-type lymph node forceps according to claim 2, characterized in that: The guide groove (6) comprises a guide groove large end (6-1) and a guide groove narrow portion (6-2), and the guide groove large end (6-1) and the guide groove narrow portion (6-2) are connected.

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