Laparoscopic surgical scissors

Abstract

The utility model relates to the technical field of medical instruments, in particular to a pair of laparoscopic surgical scissors. The pair of laparoscopic surgical scissors comprises an operating handle, a sleeve, a clamping assembly and a shearing assembly. The clamping assembly and the shearing assembly are arranged at the end of the sleeve in parallel. A first clamping plate and a second clamping plate of the clamping assembly are hinged. A clamping channel is formed between the first clamping plate and the second clamping plate. The first clamping plate is connected with the operation handle through the first control rod. A first tool bit and a second tool bit of the shearing assembly are hinged. A shearing channel is formed between the first tool bit and the second tool bit. The first tool bit is connected with the operation handle through the second control rod. The first control rod and the second control rod are both embedded in the sleeve. And the clamping channel and the shearing channel are arranged in parallel. The pair of laparoscopic surgical scissors integrates the clamping function and the shearing function, reduces the frequency of repeatedly replacing surgical tools, and improves the clamping stability and the shearing position precision of a wire rod.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a laparoscopic surgical scissors. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgery, which is operated using a laparoscope and other special tools. Its main process includes establishing pneumoperitoneum. A small incision is made in the patient's abdomen, and a needle is inserted through this incision, and carbon dioxide gas is injected into the abdominal cavity to expand the abdominal cavity, so as to provide a better vision and operation space for the surgery. During the operation, in addition to the laparoscope, several other incisions are made in other parts of the abdomen, and these incisions are used to insert surgical tools. These tools are used for operations such as cutting, suturing, and grasping.

[0003] During the actual operation process, in order to complete different operations, medical staff need to replace instruments. Especially in complex surgeries, the frequency of replacing instruments is higher. For example, during the suture operation, a long-shank needle holder is first used to hold the suture needle, and after tying a knot, the laparoscopic surgical scissors are replaced to cut the suture. In this way, frequent replacement of instruments not only prolongs the operation time, but also easily causes the abdominal wall trocar to fall off, resulting in complications such as subcutaneous emphysema.

[0004] After retrieval, a laparoscopic surgical scissors with a needle holder is disclosed in Chinese patent document CN201939411U. The surgical scissors include a handle, a long rod, and a tip. When the handle is opened and closed, it controls the opening and closing of the tip. The tip is made of metal and is in a clamp shape. The inner mating edges of its two branches are a mating surface with fine protrusions in the first half and a blade edge in the second half. Combining the functions of holding the needle and cutting the thread in one instrument can directly cut the suture after suturing without replacing the instrument.

[0005] However, there are still inconveniences in the actual operation process of suture and thread cutting with the above surgical scissors. First of all, the tip of the surgical scissors is designed in a clamp shape, and different mechanical properties are required for holding the needle and cutting the thread. A stronger grasping force is required in the first half, and a sharp blade edge is required in the second half. In actual operation, it may be difficult to maintain the balance between the two, increasing the requirements for the operation experience of medical staff. Secondly, when cutting the thread, it is necessary to first release the long-shank needle from the surgical scissors, and then use the blade edge to cut the wire. In this way, it is easy to lack control of the long-shank needle, and even the long-shank needle may fall, thereby increasing the operation difficulty and reducing the cutting position accuracy of the wire. Summary of the Invention

[0006] The purpose of the utility model is to provide a surgical scissors during the laparoscopic surgery suture and thread cutting process, which takes into account the clamping and cutting functions, so as to reduce the frequency of repeatedly replacing surgical tools, improve the clamping stability and the cutting position accuracy of the wire.

[0007] To achieve the above object, the present utility model adopts the following scheme:

[0008] A laparoscopic surgical scissors, comprising an operating handle, a cannula, a clamping assembly and a cutting assembly, wherein the clamping assembly and the cutting assembly are arranged side by side at the end of the cannula;

[0009] The clamping assembly includes a first clamping plate, a second clamping plate and a first control rod. The first clamping plate and the second clamping plate are hinged, a clamping channel is formed between the first clamping plate and the second clamping plate, and the first clamping plate is connected to the operating handle through the first control rod;

[0010] The cutting assembly includes a first cutting head, a second cutting head and a second control rod. The first cutting head and the second cutting head are hinged, a cutting channel is formed between the first cutting head and the second cutting head, and the first cutting head is connected to the operating handle through the second control rod;

[0011] Both the first control rod and the second control rod are embedded in the cannula, and the clamping channel and the cutting channel are arranged in parallel.

[0012] Preferably, an arc-shaped convex portion is provided on the second clamping plate, and a groove for matching the arc-shaped convex portion is provided on the first clamping plate. With such a setting, the combination of the arc-shaped convex portion and the matching groove can provide a more stable and powerful clamping force, which helps to clamp tissues or sutures more firmly, prevent sliding or falling off, and further improves the reliability of the operation.

[0013] Preferably, anti-slip grooves are provided on the first clamping plate, and the anti-slip grooves are linearly arranged along the axial direction of the cannula. With such a setting, the anti-slip grooves provide additional friction, making the clamping assembly more stable when grasping tissues or instruments, reducing the risk of sliding or loosening. This plays an important role in ensuring the smooth progress of the surgical procedure. The linear arrangement of the anti-slip grooves enables the clamping surface to better fit the object to be clamped, providing uniform friction and helping to achieve more precise control and operation.

[0014] Preferably, the anti-slip grooves are strip-shaped grooves or arc-shaped grooves.

[0015] Preferably, the first clamping plate and the second clamping plate are straight plates or arc-shaped plates.

[0016] Preferably, the operating handle includes a first control handle and a second control handle. The first control handle is connected to the first control rod, and the second control handle is connected to the second control rod. With such a setting, by providing independent first and second control handles, medical personnel can respectively control the actions of the clamping assembly and the cutting assembly, making the operation more flexible and precise, which is beneficial to the smooth progress of complex surgeries.

[0017] Preferably, the edges of the first cutting head and the second cutting head are both provided with rounded corners. With such a setting, the rounded corner design can effectively reduce the sharp edges when the cutting head contacts the tissue, thereby reducing the risk of tearing and puncturing the tissue, helping to protect the surrounding tissue, reducing postoperative complications and promoting healing, and improving the safety of the surgical process.

[0018] Preferably, the second cutting head is an electrocoagulation cutting head or an ultrasonic cutting head. With such a setting, by designing the second cutting head as an electrocoagulation cutting head or an ultrasonic cutting head, the versatility, operation efficiency, surgical precision and safety of the laparoscopic surgical scissors are significantly improved, further meeting the needs for high-performance and multi-functional surgical instruments during the operation.

[0019] Compared with the prior art, a laparoscopic surgical scissors provided by the present utility model has the following substantial features and improvements: the laparoscopic surgical scissors integrate the clamping and cutting functions in one instrument, avoiding frequent tool replacement during the operation, significantly improving the operation efficiency and the continuity of operation. The clamping assembly and the cutting assembly are respectively controlled by independent control rods. Through the operating handle, the clamping actions of the first splint and the second splint and the cutting actions of the first cutting head and the second cutting head can be respectively controlled, enabling medical staff to operate more flexibly, improving the surgical precision. Since the clamping channel and the cutting channel are arranged in parallel, the clamping and cutting operations can be completed without moving the instrument, reducing the interference and trauma to the surrounding tissue and promoting the postoperative recovery of the patient. The clamping channel and the cutting channel are reasonably designed, which helps to achieve precise clamping and cutting operations, especially suitable for surgical operations requiring high precision. By reducing instrument replacement and operation steps, the potential infection risk during the operation is reduced. At the same time, the juxtaposed clamping and cutting functions reduce the repeated insertion and extraction of the instrument, further enhancing the safety of the operation. Description of the Drawings

[0020] Figure 1 is a schematic three-dimensional structure diagram of a laparoscopic surgical scissors in an embodiment of the present utility model.

[0021] Figure 2 is Figure 1 a partially enlarged structure diagram at A in

[0022] Figure 3 is a schematic three-dimensional structure diagram of the first splint in an embodiment of the present utility model.

[0023] Figure 4 is Figure 3 the front view of the first splint in

[0024] Figure 5 is a structural diagram of another first splint in an embodiment of the present utility model.

[0025] Reference numerals: 1, operating handle; 2, sleeve; 3, clamping assembly; 4, shearing assembly; 5, first control handle; 6, second control handle; 31, first clamping plate; 32, second clamping plate; 33, first control rod; 34, anti-slip groove; 41, first cutter head; 42, second cutter head; 43, second control rod. Detailed implementation mode

[0026] The following will describe in detail the specific implementation mode of the present utility model in conjunction with the accompanying drawings.

[0027] As Figures 1-5 shown, in the embodiment of the present utility model, a laparoscopic surgical scissors is proposed, aiming to integrate the clamping and cutting functions during the laparoscopic surgical suture and wire cutting processes, so as to reduce the frequency of repeatedly replacing surgical tools, improve the clamping stability and the cutting position accuracy of the wire.

[0028] The laparoscopic surgical scissors proposed in the embodiment of the present utility model integrates the clamping and shearing functions in one instrument, avoiding the frequent replacement of tools during the operation, significantly improving the operation efficiency and the continuity of operation. The clamping assembly 3 and the shearing assembly 4 are respectively controlled by independent control rods. The laparoscopic surgical scissors can respectively control the clamping actions of the first clamping plate 31 and the second clamping plate 32 and the shearing actions of the first cutter head 41 and the second cutter head 42 through the operating handle 1, enabling medical staff to operate more flexibly and improving the operation accuracy. The laparoscopic surgical scissors reduces the potential infection risk during the operation by reducing the instrument replacement and operation steps. At the same time, the juxtaposed clamping and shearing functions reduce the repeated insertion and extraction of the instrument, further enhancing the operation safety.

[0029] As Figure 1 shown, a laparoscopic surgical scissors includes an operating handle 1, a sleeve 2, a clamping assembly 3 and a shearing assembly 4. The clamping assembly 3 and the shearing assembly 4 are juxtaposed at the end of the sleeve 2.

[0030] As Figure 1 Combined with Figure 2 shown, the clamping assembly 3 includes a first clamping plate 31, a second clamping plate 32 and a first control rod 33. The first clamping plate 31 and the second clamping plate 32 are hinged. A clamping channel is formed between the first clamping plate 31 and the second clamping plate 32. The first clamping plate 31 is connected to the operating handle 1 through the first control rod 33. The shearing assembly 4 includes a first cutter head 41, a second cutter head 42 and a second control rod 43. The first cutter head 41 and the second cutter head 42 are hinged. A shearing channel is formed between the first cutter head 41 and the second cutter head 42. The first cutter head 41 is connected to the operating handle 1 through the second control rod 43. Both the first control rod 33 and the second control rod 43 are embedded in the sleeve 2. The clamping channel and the shearing channel are arranged in parallel.

[0031] Among them, as Figure 1As shown, the operating handle 1 includes a first control handle 5 and a second control handle 6. The first control handle 5 is connected to the first control rod 33. The second control handle 6 is connected to the second control rod 43. With such a setting, by providing independent first and second control handles 5 and 6, medical personnel can separately control the actions of the clamping assembly 3 and the shearing assembly 4, making the operation more flexible and precise, which is beneficial to the smooth progress of complex surgeries.

[0032] The clamping assembly 3 and the shearing assembly 4 are respectively controlled by independent control rods. Through the operating handle 1, the clamping actions of the first clamping plate 31 and the second clamping plate 32 and the shearing actions of the first cutter head 41 and the second cutter head 42 can be separately controlled, enabling medical staff to operate more flexibly, improving the accuracy of the surgery. Since the clamping channel and the shearing channel are arranged in parallel, clamping and shearing operations can be completed without moving the instrument, reducing interference and trauma to the surrounding tissues and promoting the patient's postoperative recovery.

[0033] Preferably, an arc-shaped convex portion is provided on the second clamping plate 32, and a groove for matching the arc-shaped convex portion is provided on the first clamping plate 31. With such a setting, the combination of the arc-shaped convex portion and the matching groove can provide a more stable and powerful clamping force, helping to clamp tissues or sutures more firmly, preventing sliding or falling off, and further improving the reliability of the operation.

[0034] In addition, the fitting structure formed by the arc-shaped convex portion and the groove increases the rigidity and stability of the clamping assembly 3, reduces the shaking or deformation of the clamping plates during clamping, and improves the stability and reliability of the operation. The design of the arc-shaped convex portion and the groove can effectively prevent the clamped object from slipping during the operation. Especially when dealing with slippery tissues or instruments, this structure can provide additional safety protection. The cooperation between the arc-shaped convex portion and the groove can help ensure the accurate alignment of the clamping assembly 3 during clamping. This can reduce errors, ensure that each clamping is accurately aligned with the target, and improve the accuracy of the surgery.

[0035] As Figure 3 shown, anti-slip grooves 34 are provided on the first clamping plate 31. The anti-slip grooves 34 are linearly arranged along the axial direction of the sleeve 2. With such a setting, the anti-slip grooves 34 provide additional friction, making the clamping assembly 3 more stable when grasping tissues or instruments, reducing the risk of sliding or loosening. This plays an important role in ensuring the smooth progress of the surgical procedure. The linear arrangement of the anti-slip grooves 34 enables the clamping surface to better fit the object to be clamped, providing uniform friction and helping to achieve more precise control and operation.

[0036] For example, as Figure 4 combined with Figure 5 shown, the anti-slip grooves 34 are strip-shaped grooves or arc-shaped grooves.

[0037] In a preferred embodiment of the present utility model, the outer shapes of the first splint 31 and the second splint 32 can be selected according to the actual surgical operation site. For example, the first splint 31 and the second splint 32 are straight plates or arc-shaped plates.

[0038] Rounding is provided at the edges of both the first cutting head 41 and the second cutting head 42. With such a setting, the rounding design can effectively reduce the sharp edges when the cutting head contacts the tissue, thereby reducing the risk of tissue tearing and puncture, helping to protect the surrounding tissue, reducing postoperative complications and promoting healing, and improving the safety of the surgical process.

[0039] To further enrich the usage functions of the shearing assembly 4, the second cutting head 42 is an electrocoagulation cutting head or an ultrasonic cutting head. With such a setting, by designing the second cutting head 42 as an electrocoagulation cutting head or an ultrasonic cutting head, the versatility, operation efficiency, surgical accuracy and safety of the laparoscopic surgical scissors are significantly improved, further meeting the requirements for high-performance and multi-functional surgical instruments during the operation.

[0040] For example, when the second cutting head 42 is an electrocoagulation cutting head, high-frequency current is used to pass through the tissue to generate heat, achieving tissue cutting and coagulation. The electrocoagulation cutting head conducts the high-frequency current to the tissue through an electrode. When the current passes through the tissue, the resistance of the tissue causes it to heat up. The high-frequency current makes the water molecules in the tissue vibrate rapidly, thereby generating heat. This heat causes the tissue protein to denature and coagulate, achieving the effect of hemostasis. At the same time, the heat can also be used to cut the tissue. In addition, the thermal effect of electrocoagulation can close small blood vessels, reducing the amount of bleeding during the operation. This is particularly important for laparoscopic surgery because the operating space in laparoscopic surgery is limited and the clarity of the field of view is crucial.

[0041] When the second cutting head 42 is an ultrasonic cutting head, electrical energy is converted into high-frequency mechanical vibration through a piezoelectric ceramic or other energy converter. The vibration frequency is usually between 20,000 and 60,000 hertz. The high-frequency vibration is transmitted to the cutting head, causing it to vibrate rapidly with an amplitude at the micron level. The rapid vibration of the cutting head will cause cavitation effect of the water molecules inside the cells when contacting the tissue, and the cells rupture, thereby achieving tissue cutting. And, the ultrasonic knife will generate a certain amount of heat while cutting the tissue, and these heats are sufficient to denature and coagulate the tissue protein at the cutting edge, thereby achieving the effect of hemostasis.

[0042] When the laparoscopic surgical scissors proposed in the embodiment of the present utility model are used, they can be used not only in laparoscopic operations but also in general open surgeries.

[0043] For example, after the preparatory work is completed, insert the laparoscopic surgical scissors through the port of a trocar 2, ensuring that the end of the trocar 2 extends into the abdominal cavity, and the clamping assembly 3 and the cutting assembly 4 of the surgical scissors are within the surgical field of view. Observe the surgical area using the laparoscopic camera system to ensure that the clamping assembly 3 (the first splint 31 and the second splint 32) and the cutting assembly 4 (the first blade 41 and the second blade 42) of the surgical scissors are in the correct initial positions. Repeat the clamping and cutting operations according to the surgical requirements. By controlling the first control rod 33 and the second control rod 43 separately, the alternate operation of the clamping and cutting functions is achieved.

[0044] During the operation of suturing and cutting the thread, the clamping assembly 3 is used to hold the long handle needle, and then the cutting edge of the cutting assembly 4 is used to cut the wire. In this way, the situation of the long handle needle falling off is avoided, thereby reducing the operation difficulty and improving the cutting position accuracy of the wire.

[0045] The present utility model is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present utility model can also have other implementation manners. For those skilled in the art, any technical solutions formed by making any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A laparoscopic surgical scissors, characterized in that, It includes an operating handle (1), a sleeve (2), a clamping assembly (3) and a shearing assembly (4). The clamping assembly (3) and the shearing assembly (4) are arranged side by side at the end of the sleeve (2). The clamping assembly (3) includes a first clamping plate (31), a second clamping plate (32) and a first control rod (33). The first clamping plate (31) and the second clamping plate (32) are hinged. A clamping channel is formed between the first clamping plate (31) and the second clamping plate (32). The first clamping plate (31) is connected to the operating handle (1) through the first control rod (33). The shearing assembly (4) includes a first cutter head (41), a second cutter head (42) and a second control rod (43). The first cutter head (41) and the second cutter head (42) are hinged. A shearing channel is formed between the first cutter head (41) and the second cutter head (42). The first cutter head (41) is connected to the operating handle (1) through the second control rod (43). Both the first control rod (33) and the second control rod (43) are embedded in the sleeve (2). The clamping channel and the shearing channel are arranged in parallel.

2. The laparoscopic surgical scissors according to claim 1, characterized in that, An arc-shaped convex part is provided on the second clamping plate (32), and a groove for matching the arc-shaped convex part is provided on the first clamping plate (31).

3. The laparoscopic operating scissors according to claim 1, characterized in that, Anti-slip grooves (34) are provided on the first clamping plate (31), and the anti-slip grooves (34) are linearly arranged along the axial direction of the sleeve (2).

4. The laparoscopic surgical scissors according to claim 3, wherein, The anti-slip grooves (34) are strip-shaped grooves or arc-shaped grooves.

5. The laparoscopic operating scissors according to claim 1, characterized in that, The first clamping plate (31) and the second clamping plate (32) are straight plates or arc-shaped plates.

6. The laparoscopic surgical scissors according to claim 1, characterized in that, The operating handle (1) includes a first control handle (5) and a second control handle (6). The first control handle (5) is connected to the first control rod (33), and the second control handle (6) is connected to the second control rod (43).

7. The laparoscopic surgical scissors according to claim 1, characterized in that, Round corners are provided on the edges of both the first cutter head (41) and the second cutter head (42).

8. The laparoscopic surgical scissors according to claim 1, characterized in that, The second cutter head (42) is an electrocoagulation cutter head or an ultrasonic cutter head.

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