Gun type lymph node forceps capable of being opened and closed horizontally

Abstract

Gun-type lymph node forceps capable of being opened and closed horizontally belong to the technical field of medical instruments. According to the technical scheme, the clamp comprises a fixed part composed of a fixed handle, a fixed clamp body and a fixed clamp body head, and a movable handle is rotationally connected with the fixed clamp body through a lower pin hole of a rotating part; the movable vice body is rotationally connected with the rotating part through a pin hole in the upper part of the rotating part; the movable vice body is connected with the head of the movable vice body through a movable stepped shaft, and the movable stepped shaft is fixedly connected with the movable vice body; the fixed stepped shaft is fixedly connected with the fixed vice body, and the fixed stepped shaft is in lubrication fit with the head of the movable vice body. The pair of surgical forceps has the advantages that operation convenience is achieved through structural innovation, pressure on the wrist of a doctor is relieved, surgical accuracy and safety are improved, the thickness of the forceps body is reduced, more surgical scenes are enriched, the service life is prolonged, and maintenance cost is reduced; the efficiency and safety of the lymph node operation are remarkably improved, and better operation experience and treatment effect are brought to doctors and patients.

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 which can be opened and closed horizontally. Background Art

[0002] A lymph node clamp is a medical tool commonly used during surgery or medical procedures to grasp lymph nodes. Lymph nodes are an important part of the lymphatic system, filtering fluids, removing bacteria and waste, and producing immune cells. Some medical procedures require grasping lymph nodes for examination, removal, or treatment.

[0003] Lymph node forceps are commonly used by doctors during surgery. In addition to having a long service life and being easy to operate, it is particularly important for doctors to use them more conveniently. By collecting examples of clinicians who have difficulty using surgical forceps during surgery, it was found that when the pathology is located in a relatively remote location, using the current lymph node forceps on the market with a head that opens and closes up and down, the doctor needs to frequently rotate his wrist and adjust the angle of the instrument multiple times to treat the lesion location, which is very inconvenient for the clinician. There is an urgent need for a surgical instrument with a forceps head that can open and close horizontally to meet the clinical needs of doctors and reduce the pressure on the doctor's wrist during surgery.

[0004] An earlier Chinese utility model patent with the publication number CN205458909U proposed a lymph node extraction forceps that uses a scissor structure. The predecessor of the scissor structure is modified into a fork and a forceps mouth mechanism to achieve lymph node clamping. The overall length of the mechanism is short, which is more convenient to operate when treating shallow pathological locations. A new type of lymph node forceps is proposed in the Chinese utility model patent with the publication number CN209172425U. The doctor controls the extension and contraction of the sliding rod in the middle section of the forceps body by moving the lower handle, and then controls the upper movable clamp. The overall structure is simple, the opening and closing are adjusted accurately, and the surgical pressure on medical staff is reduced. A new type of adjustable lymph node forceps is proposed in the Chinese utility model patent with the publication number CN207462102U. It innovatively uses a gear rack meshing as a transmission mechanism, and uses the adjustment nut to rotate to drive the transmission rod, thereby controlling the movement of the rack, driving the gear to rotate to accurately control the opening and closing of the clamp.

[0005] However, the patent with announcement number CN217696734U introduces a new type of lymph node forceps, which reduces the size of the head of the lymph node forceps so that doctors will not suffer surgical accidents due to obstruction of vision during clinical operations. However, the head of the new lymph node forceps cannot be opened to the left and right. During some lymph node surgeries, due to the location of the lymph nodes, the doctor's wrist angle is inconvenient when using the forceps.

[0006] The patent with announcement number CN207462102U provides an adjustable lymph node forceps, with a gear mechanism set at the movable handle, and then controlling the opening angle of the lymph node forceps head through a transmission rod. However, in actual use, the rod body of the lymph node forceps head is long and opens up and down at the same time, making it difficult to control during surgery.

[0007] Although the patent with announcement number CN205458909U proposes a lymph node extraction forceps, it is inconvenient to use in clinical surgery due to the short forceps body.

[0008] In general, the above-mentioned existing technologies all use a mechanical mechanism in which the head of the lymphatic clamp opens up and down, which meets certain needs of doctors. However, in clinical surgery, when doctors operate on certain lesions, the instrument with the head of the clamp opening up and down requires twisting the wrist at a certain angle and rotating the clamp body to perform the surgery more conveniently. Therefore, designing a surgical instrument with a clamp head that can open and close left and right has great practical value and greatly helps doctors reduce labor intensity.

[0009] In summary, the existing lymph node forceps still have many technical problems in terms of operation convenience, wrist pressure, opening and closing method, control accuracy, forceps length and field of view obstruction, etc., and further optimization and innovative design are needed to meet the actual needs of clinical surgery. Utility Model Content

[0010] In order to solve the technical problems existing in the prior art and solve the problem of inconvenience in removing lymph nodes during surgery because the head of traditional surgical forceps can only be opened up and down, the utility model provides a gun-type lymph node forceps that can be opened and closed horizontally, and designs an instrument with a forceps head that can be opened horizontally, thereby reducing the rotation angle of the doctor's wrist during surgery; at the same time, in the movable part of the lymph node forceps head, the movable head with a stepped hole is innovatively used to cooperate with the stepped shaft to achieve horizontal opening and closing of the lymph node forceps head, thereby reducing the thickness and size while maintaining structural stability and size.

[0011] To achieve the above objectives, the present invention provides the following technical solutions:

[0012] A gun-type lymph node forceps that can be opened and closed horizontally includes a fixed part consisting of a fixed handle, a fixed forceps body and a fixed forceps body head, the fixed forceps body is provided with at least one fixed groove I; the movable handle is rotatably connected to the fixed forceps body through the lower pin hole of the rotating component; the movable forceps body is rotatably connected to the rotating component through the upper pin hole of the rotating component; the movable forceps body is connected to the movable forceps body head through a movable stepped shaft, the movable stepped shaft is fixedly connected to the movable forceps body, and a gap is left between the movable stepped shaft and the stepped shaft hole; the fixed stepped shaft is fixedly connected to the fixed forceps body, and the fixed stepped shaft and the movable forceps body head are lubricated to achieve rotation of the movable forceps body head around the fixed stepped shaft.

[0013] Furthermore, the portion of the movable jaw head close to the fixed jaw and the movable jaw is designed with rounded corners.

[0014] Furthermore, a gap of 0.5 mm is reserved between the movable stepped shaft and the stepped shaft hole.

[0015] Furthermore, after the pin hole below the head of the movable pliers body is fixed to the stepped pin shaft, it is welded to the fixed pliers body.

[0016] Furthermore, the pin shaft between the movable clamp body and the pin hole above the rotating component is clearance-fitted.

[0017] Furthermore, the movable handle is connected to the rotating part through rotation, so that the movable handle can drive the movable clamp body to swing within a certain angle range, and then control the horizontal opening and closing of the movable clamp body head through the movable clamp body.

[0018] Furthermore, the fixed handle and the fixed clamp body are integrally formed.

[0019] Beneficial effects of the utility model:

[0020] Compared with the prior art, the horizontally opening and closing gun-type lymph node forceps of the present invention has the following technical features and beneficial effects:

[0021] 1. Horizontal opening and closing design: Compared with traditional lymph node forceps that open and close up and down, the utility model adopts a horizontal opening and closing design, which enables the head of the forceps to open and close left and right without changing the direction of the handle; this innovative design greatly improves the doctor's operating convenience during surgery, especially when dealing with lymph nodes located in remote or difficult-to-reach locations. The doctor can easily clamp the lymph nodes without frequently rotating the wrist and adjusting the angle of the instrument; the lymph node forceps of the utility model are designed with full consideration of the needs of different surgical scenarios; by adjusting the strength or angle of the handle, the doctor can easily control the opening and closing degree and clamping force of the forceps head to adapt to lymph nodes of different sizes and shapes, enriching the needs of usage scenarios.

[0022] 2. Reasonable handle layout: The handle part of the lymph node forceps of this utility model is designed in accordance with ergonomic principles, which can ensure that the doctor maintains a comfortable wrist posture during long operations; the horizontal opening and closing design reduces the rotation of the wrist, thereby effectively reducing wrist fatigue and pressure, and improving the comfort and safety of the operation.

[0023] 3. Reduce the thickness of the clamp body: The utility model ensures the stability and reliability of the clamp head during the horizontal opening and closing process by optimizing the transmission mechanism and hinge design; the precise fit between the movable stepped shaft and the stepped shaft hole and the lubrication treatment of the fixed stepped shaft make the opening and closing action smoother and more precise, reducing the surgical risks caused by improper operation; while optimizing the structure, the thickness of the clamp body is reduced, thereby improving the flexibility of surgical operations.

[0024] 4. Clear field of view: The horizontal opening and closing design reduces the obstruction of the surgical field of view by the head of the forceps, allowing doctors to see the location and status of the lymph nodes more clearly, thereby improving the accuracy and safety of the operation.

[0025] 5. Durable material selection: This utility model uses high-strength, corrosion-resistant alloy materials to make key components such as the movable stepped shaft and the fixed stepped shaft, ensuring the long-term reliability and durability of the lymph node forceps; at the same time, the reasonable structural design also reduces wear and failure rate between components, thereby extending the service life of the lymph node forceps.

[0026] 6. Simple maintenance process: The lymph node forceps of this utility model have a simple and clear structural design and are easy to disassemble and clean. After the operation, the doctor can easily clean and disinfect the lymph node forceps to ensure its hygiene and safety in the next operation. At the same time, the simple maintenance process also reduces the hospital's use cost and maintenance difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 This is a schematic diagram of the gun-type lymph node forceps that can be opened and closed horizontally according to the present invention;

[0029] Figure 2 This is a schematic diagram of the cross-sectional structure of the gun-type lymph node forceps that can be opened and closed horizontally according to the present invention;

[0030] Figure 3 This is a cross-sectional view of the stepped hole on the head of the lymph node forceps of the present invention;

[0031] Reference numerals in the figure: 1. fixed handle; 2. movable pliers body; 3. fixed pliers body head; 4. movable pliers body head; 5. fixed pliers body; 6. movable handle; 7. rotating component; 8. fixed groove I; 9. fixed groove II; 10. stepped shaft hole; 11. movable stepped shaft; 12. fixed stepped shaft. DETAILED DESCRIPTION

[0032] 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 1-3 The gun-type lymph node forceps that can be opened and closed horizontally is further described.

[0033] Example 1

[0034] A gun-type lymph node forceps that can be opened and closed horizontally includes a fixed part consisting of a fixed handle 1, a fixed clamp body 5 and a fixed clamp body head 3, wherein the fixed clamp body 5 is provided with at least one fixed groove 8; the movable handle 6 is rotatably connected to the fixed clamp body 5 through the lower pin hole of the rotating part 7; the movable clamp body 2 is rotatably connected to the rotating part 7 through the upper pin hole of the rotating part 7; the movable clamp body 2 is connected to the movable clamp body head 4 through a movable stepped shaft 11, the movable stepped shaft 11 is fixedly connected to the movable clamp body 2, and a gap is left between the movable stepped shaft 11 and the stepped shaft hole 10; the fixed stepped shaft 12 is fixedly connected to the fixed clamp body 5, and the fixed stepped shaft 12 and the movable clamp body head 4 are lubricated to realize the rotation of the movable clamp body head 4 around the fixed stepped shaft 12.

[0035] The movable jaw head 4 has rounded corners near the fixed jaw 5 and movable jaw 2. A 0.5mm gap is reserved between the movable stepped shaft 11 and the stepped shaft hole 10. The pin hole below the movable jaw head 4 is fixed to the stepped pin and then welded to the fixed jaw 5. The pin between the movable jaw 2 and the pin hole above the rotating component 7 is a clearance fit.

[0036] The movable handle 6 is connected to the rotating member 7 by rotation, so that the movable handle 6 can drive the movable clamp body 2 to swing within a certain angle range, thereby controlling the horizontal opening and closing of the movable clamp body head 4 through the movable clamp body 2. Preferably, the fixed handle 1 and the fixed clamp body 5 are integrally formed.

[0037] The invention also includes a locking mechanism on the movable handle 6 for locking the position of the movable handle 6 after the movable handle 6 is adjusted to a specific angle. The invention also includes an anti-slip texture or a gripping component provided on the movable handle 6 and / or the fixed handle 1.

[0038] Working principle:

[0039] The working principle of the horizontally opening and closing pistol-style lymph node forceps of this utility model mainly relies on the interaction between the movable handle, the movable body, the fixed body, and the connecting components (such as the rotating component and the stepped shaft) between them. The rotation of the movable handle drives the movable body to swing within a certain angle range, and the movable body controls the horizontal opening and closing of the movable body head to achieve the clamping and release of the lymph node.

[0040] Working process:

[0041] Initial state: The lymph node forceps is not in use, the movable handle 6 is parallel or nearly parallel to the fixed handle 1, the movable forceps body 2 and the fixed forceps body 5 are also in a relatively static position, and a certain distance is maintained between the movable forceps head 4 and the fixed forceps head 3, and no clamping force is generated.

[0042] A gap of 0.5 mm is reserved between the movable stepped shaft 11 and the stepped shaft hole 10 to ensure that the movable clamp head 4 can rotate flexibly around the fixed stepped shaft 12; at the same time, the fixed stepped shaft 12 and the movable clamp head 4 are lubricated to reduce friction and wear.

[0043] Preparation for clamping: The doctor moves the fixed part of the lymph node forceps (fixed handle 1, fixed forceps body 5, fixed forceps head 3) close to the target lymph node according to the surgical needs. He holds the movable handle 6 and prepares to clamp the lymph node.

[0044] Clamping operation: The doctor rotates the movable handle 6 to rotate the rotating part 7. The upper pin hole of the rotating part 7 is connected to the pin shaft of the movable clamp body 2, so the movable clamp body 2 will swing within a certain angle range as the rotating part 7 rotates.

[0045] Because the movable jaw body 2 and the movable jaw head 4 are connected by a movable stepped shaft 11, and a gap is left between the movable stepped shaft 11 and the stepped shaft hole 10, the movable jaw head 4 can rotate freely about the fixed stepped shaft 12. As the movable jaw body 2 swings, the movable jaw head 4 gradually approaches the fixed jaw head 3, generating a clamping force. When the movable handle 6 is rotated to a specific angle, it can be locked by a locking mechanism to maintain a stable clamping state.

[0046] Adjustment and Release: If the clamping force or position needs to be adjusted, the doctor can fine-tune the angle of the movable handle 6 by swinging the movable clamp body 2. When the lymph node needs to be released, the doctor only needs to rotate the movable handle 6 in the opposite direction, so that the movable clamp head 4 gradually moves away from the fixed clamp head 3 until the lymph node is completely released.

[0047] End of operation: After completing the clamping and releasing operations, the doctor can remove the lymph node forceps from the surgical area and perform necessary cleaning and disinfection for next use.

[0048] Throughout the entire operation, the non-slip texture or gripping components help the surgeon better grasp and control the lymph node forceps, improving the stability and safety of the operation. At the same time, the reasonable clearance fit and lubrication design ensure smooth movement between the components and long-term reliability.

[0049] Example 2

[0050] The utility model proposes an instrument with a clamp body head that can be opened horizontally, which solves the problem that doctors are inconvenient to remove lymph nodes due to uncomfortable surgical position angles during surgery. A new medical instrument is designed that can make the lymph node clamp head open and close horizontally.

[0051] like Figure 1 As shown, the fixed handle 1, fixed body 5, and fixed body head 3 are integrally formed. The fixed body 5 is provided with at least one fixed groove 8. The movable handle 6 forms a pivoting mechanism with the fixed body 5 via a pinhole below the rotating component 7, allowing the movable handle 6 to swing through a defined angle. The pinhole above the rotating component 7 connects to the movable body 2 via a pin. An arcuate groove is provided at the interface between the movable body 2 and the rotating component 7 to prevent interference. The movable clamp body 2 is connected to the movable clamp body head 4 through the movable stepped shaft 11. A gap of 0.5 mm is reserved in the part where the movable stepped shaft 11 and the stepped shaft hole 10 cooperate to avoid a large deviation of the clamp body head when the clamp body is pulled. The part where the movable stepped shaft 11 cooperates with the movable clamp body 2 is fixedly connected (locally welded), and the part where the fixed stepped shaft 12 cooperates with the fixed clamp body 5 is also fixedly connected (locally welded). The fixed stepped shaft 12 and the movable clamp body head 4 are lubricated, so that the movable clamp body head 4 can rotate around the fixed stepped shaft 12 after being pulled by the movable clamp body 2, thereby realizing the horizontal opening and closing of the lymph node clamp body head. When the doctor's hand applies external force, the action is transmitted to the movable forceps body 2 through the movable handle 6 and the rotating part 7 to make it move, and then the force is transmitted to the movable stepped shaft 11. Since the lines of action of the movable stepped shaft 11 of the force-applying object and the movable head 4 of the force-receiving object are not on the same horizontal line, a torque will be generated. In order to prevent the influence of the torque from being too large, causing the movable forceps head 4 to move in the vertical direction when opening and closing horizontally, in addition to the gap reserved between the movable stepped shaft 11 and the stepped shaft 10, it is more important to invert the same component (the second fixed stepped shaft 12). The fixed connection between the inverted second fixed stepped shaft 12 and the movable forceps head 4 will produce an effect, offset the effect of the torque, and prevent the movable forceps body 2 from being separated from the movable forceps head 4, making the structure more sophisticated.

[0052] Rounded corners are designed at the movable forceps head 4 near the fixed forceps and the movable forceps to avoid interference problems caused by relative movement between the lymph node forceps head and the forceps body, reduce excessive stress at the hinged joint and thus reduce local damage, and polish it to make the surface smooth to reduce damage to the patient.

[0053] During the use of the new lymph node forceps, the angle of the mechanism composed of the movable handle 6 and the rotating part 7 is adjusted to drive the movable forceps body 2 to move in a certain direction. Figure 2 The movable handle moves in the arc groove shown in the cross-sectional view. The design of the arc groove also constrains the movable angle of the movable handle. The movable clamp body controls the opening and closing of the lymph clamp head through the pin shaft hinged to the movable clamp body head during horizontal movement.

[0054] like Figure 2 The design of the fixing groove 8 shown makes the entire device more compact and prevents the assembled device from shaking significantly during use.

[0055] like Figure 3 The enlarged view of a lymph node forceps section shows the pinhole below the movable body head, which is secured with a stepped pin and then welded to the fixed body. The weld is then polished. The pin above the pinhole is welded to the movable body. A clearance fit is used between the pinhole and the pinhole to prevent excessive pressure on the pinhole when the movable body head is opened, which could cause significant wear during extended use.

[0056] The utility model utilizes a rotating structure formed by a movable handle 6 and a rotating part 7 to drive the movable clamp body to move after rotation, thereby driving the horizontal opening and closing of the clamp head. The design of the fixing grooves 8 and 9 not only facilitates installation by workers, but also prevents the movable clamp body from being displaced too much when subjected to a large impact, thereby preventing the sudden situation of damage to the overall structure. The head 4 of the movable clamp body innovatively uses a stepped hole. The stepped shaft and the movable clamp body are more compact and the head size is reduced to resist torque. The pin shaft and the pin hole adopt a clearance fit to prevent the movable clamp body head from exerting a large pressure on the pin hole when opening.

[0057] The utility model designs a new lymph node forceps head with corresponding key slots and transmission mechanism. The angle between the opening and closing surface of the forceps head and the forceps handle is 90 degrees, which is convenient for doctors to use during clinical surgery. The key slot at the movable annular handle is connected by a pin shaft to realize the movement of the movable lymph node forceps body, and the overall structure is closed and integrated. The fixed lymph node forceps body has an installation groove, which enhances the overall stability of the forceps body and is more convenient for clinicians to use.

[0058] 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 that can be opened and closed horizontally, characterized by: The invention comprises a fixed part consisting of a fixed handle (1), a fixed pliers body (5) and a fixed pliers body head (3), wherein the fixed pliers body (5) is provided with at least one fixed groove I (8); the movable handle (6) is rotatably connected to the fixed pliers body (5) through the lower pin hole of the rotating component (7); the movable pliers body (2) is rotatably connected to the rotating component (7) through the upper pin hole of the rotating component (7); the movable pliers body (2) is connected to the movable pliers body head (4) through a movable stepped shaft (11), the movable stepped shaft (11) is fixedly connected to the movable pliers body (2), and a gap is left between the movable stepped shaft (11) and the stepped shaft hole (10); the fixed stepped shaft (12) is fixedly connected to the fixed pliers body (5), and the fixed stepped shaft (12) and the movable pliers body head (4) are lubricated to realize the rotation of the movable pliers body head (4) around the fixed stepped shaft (12).

2. The horizontally opening and closing gun-type lymph node forceps according to claim 1, characterized in that: The portion of the movable pliers head (4) close to the fixed pliers (5) and the movable pliers (2) is designed with rounded corners.

3. The horizontally opening and closing gun-type lymph node forceps according to claim 1, characterized in that: A gap of 0.5 mm is reserved between the movable stepped shaft (11) and the stepped shaft hole (10).

4. The horizontally opening and closing gun-type lymph node forceps according to claim 1, characterized in that: After the pin hole below the movable clamp body head (4) is fixed to the fixed stepped shaft (12), it is welded to the fixed clamp body (5).

5. The horizontally opening and closing gun-type lymph node forceps according to claim 1, characterized in that: The pin shaft between the movable clamp body (2) and the pin hole above the rotating component (7) is clearance-fitted.

6. The horizontally opening and closing gun-type lymph node forceps according to claim 1, characterized in that: The movable handle (6) is connected to the rotating component (7) through rotation, so that the movable handle (6) can drive the movable clamp body (2) to swing within a certain angle range, and then control the horizontal opening and closing of the movable clamp body head (4) through the movable clamp body (2).

7. The horizontally openable and closing gun-type lymph node forceps according to any one of claims 1 to 6, characterized in that: The fixed handle (1) and the fixed clamp body (5) are integrally formed.

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