Surgical electrotome with suction device

Abstract

The utility model discloses a surgical electrotome with a suction device, which belongs to the technical field of medical treatment and comprises an adapter, a connecting wire is arranged on the side wall of the adapter, a knife handle is arranged at one end, far away from the adapter, of the connecting wire, a knife head is arranged at one end, far away from the connecting wire, of the knife handle, and a groove is formed in the outer surface of the knife handle. By arranging the filter element which can be rotated and replaced at any time, it is guaranteed that the filter element can be rapidly replaced in the operation process, complexity of traditional filter element replacement is avoided, replacement time is shortened, operation of medical staff is facilitated, and therefore the clear operation view is maintained, misoperation caused by the poor view is reduced, and the operation efficiency is improved. And safe operation is ensured. Retention of smoke in the operating room is reduced, the risk that medical staff inhale harmful substances is reduced, and the body health of the medical staff is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to a surgical electric knife with a suction device. Background Art

[0002] Surgical electrosurgery, also known as high-frequency electrosurgery, is a medical device widely used in surgical operations. It mainly uses the thermal effect generated when high-frequency current comes into contact with body tissue to achieve functions such as cutting and coagulation of tissue. The emergence of this electrosurgery has replaced the traditional mechanical scalpel, making surgical operations more efficient, precise and safe. During the operation, the doctor places the electrosurgery head on the tissue that needs to be cut or coagulated. The high-frequency current comes into contact with the tissue through the electrosurgery head, generating a thermal effect, causing the tissue cells to quickly dehydrate and coagulate, thereby achieving the purpose of cutting and hemostasis. Due to the extremely high vibration frequency of the electrosurgery head, the tissue can be cut quickly and accurately, while reducing tissue damage and bleeding.

[0003] The main reason why surgical electrosurgeries produce smoke when in use is the high temperature effect generated when the electrosurgery comes into contact with tissue. When the high-frequency current of the surgical electrosurgery comes into contact with tissue, the electrical energy is quickly converted into heat energy, causing the tissue cells in the contact area to quickly dehydrate and coagulate, thereby achieving the purpose of cutting and hemostasis. In this process, the water and other components in the tissue cells evaporate or react chemically due to the high temperature to form gaseous or tiny particulate substances. This smoke is mainly composed of water vapor, tissue fragments, necrotic cells, blood components and other chemicals produced by high temperature. In order to reduce the impact of smoke generated by surgical electrosurgeries on the surgical field of view, modern surgical electrosurgeries are usually equipped with suction devices to promptly remove smoke and liquids generated during surgery. When the electrosurgery is in use, medical staff cannot quickly replace the filter element. As the filter element is used for a longer time, its filtering capacity will gradually decrease. This will cause more smoke, particles and harmful substances to enter the operating room environment through the filter element, increasing the risk of air pollution in the operating room. Secondly, the reduced filtering effect will lead to an increase in smoke in the surgical field of view, making it difficult for doctors to clearly see the surgical area. This may not only affect the accuracy of the operation, but also increase the difficulty and risk of the surgical operation. The filter element cannot filter out surgical smoke in time, which may contain harmful substances and active viruses. Long-term inhalation of these substances may have a negative impact on the respiratory system and other health aspects of medical staff. Utility Model Content

[0004] The purpose of the utility model is to provide a surgical electrosurgical knife with a suction device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A surgical electric knife with a suction device comprises an adapter, a connecting wire is arranged on the side wall of the adapter, a knife handle is arranged on the end of the connecting wire away from the adapter, a knife head is arranged on the end of the knife handle away from the connecting wire, a groove is arranged on the outer surface of the knife handle, and a filter core is arranged in the groove.

[0007] Preferably, a suction tube 1 is passed through and connected to the side of the knife handle close to the knife head, and an expansion opening is provided on the side of the suction tube 1 close to the knife head. The diameter of the expansion opening gradually expands from the side close to the suction tube 1 outward, and a suction tube 2 is passed through and connected to the side of the knife handle close to the connecting line.

[0008] Preferably, a sealing plug is provided in the groove, the diameter of the sealing plug is matched with the suction tube 1 and the suction tube 2, and the suction tube 2 is externally connected to a negative pressure adsorption device.

[0009] Preferably, a protective shell is provided on the outer surface of the knife handle, and a connecting shaft is rotatably connected to the inner wall of the protective shell.

[0010] Preferably, a mounting tube is provided on the outer surface of the connecting shaft, and the mounting tube is clamped with the filter element.

[0011] Preferably, the connecting shaft passes through the outer wall of the protective shell on the side close to the cutter head, and a gear ring is provided on the outer surface of the connecting shaft.

[0012] Preferably, the gear ring is fixedly connected to the connecting shaft and is located on the outer wall of the protective shell, and a knob is provided on one side of the outer wall of the protective shell close to the gear ring.

[0013] Preferably, the knob is rotatably connected to the protective shell, and teeth are provided on the outer surface of the knob, and the teeth are meshed with the gear ring.

[0014] Preferably, a pawl is provided on one side of the protective shell close to the gear ring, and a torsion spring is provided at the rotation position of the pawl.

[0015] Preferably, one end of the pawl away from the rotating part is stuck in the recess of the gear ring.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] By turning the knob to rotate the connecting shaft, the replacement filter element can continue filtering. Medical staff can quickly complete the filter element replacement operation, reduce unnecessary interruptions and waiting time during surgery, help alleviate patient anxiety and discomfort, and the smoke generated during the operation can be quickly and effectively adsorbed and filtered, helping to protect the environment in the operating room and prevent medical staff from inhaling harmful smoke.

[0018] Through the filter element set in the handle, the device only needs to replace the suction tube close to the expansion port, which saves the use cost, facilitates operation and avoids the waste of resources, thereby reducing the cost of a single component and thus reducing the overall maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the knife handle of the utility model;

[0022] Figure 3 This is a schematic diagram of the cutaway structure of the knife handle of the utility model;

[0023] Figure 4 This is a schematic diagram of the cutaway structure of the protective shell of the utility model;

[0024] Figure 5 It is a schematic diagram of the exploded structure of the internal mechanism of the groove of the utility model.

[0025] Explanation of the figure numbers: 2. Connecting wire; 3. Knife handle; 4. Knife head; 5. Suction tube 1; 6. Suction tube 2; 7. Expansion port; 8. Groove; 9. Sealing plug; 10. Protective shell; 11. Connecting shaft; 12. Mounting tube; 13. Filter element; 14. Gear ring; 15. Knob; 16. Teeth; 17. Ratchet. DETAILED DESCRIPTION

[0026] The utility model is described in further detail below in conjunction with the accompanying drawings.

[0027] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be used for other implementation schemes, variations, improvements, equivalent schemes, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0030] See also Figure 1-Figure 5 A surgical electric knife with a suction device includes an adapter, a connecting wire 2 is arranged on the side wall of the adapter, a knife handle 3 is arranged on the end of the connecting wire 2 away from the adapter, a knife head 4 is arranged on the end of the knife handle 3 away from the connecting wire 2, a groove 8 is arranged on the outer surface of the knife handle 3, and a filter core 13 is arranged in the groove 8. A sealing plug 9 is arranged in the groove 8, and the diameter of the sealing plug 9 is adapted to the suction tube 1 5 and the suction tube 2 6, and the suction tube 2 6 is externally connected to a negative pressure adsorption device. By arranging the filter core 13 in the knife handle 3 of the electric knife to filter the smoke, only the suction tube 1 5 needs to be replaced, which saves the use cost.

[0031] Among them, the side of the knife handle 3 close to the knife head 4 is penetrated and connected with a suction tube 1 5, and the side of the suction tube 1 5 close to the knife head 4 is provided with an expansion port 7, and the diameter of the expansion port 7 gradually expands from the side close to the suction tube 1 5 to the outside, and the side of the knife handle 3 close to the connecting line 2 is penetrated and connected with a suction tube 2 6. The outward expansion of the expansion port 7 increases the contact area with the smoke, can more effectively absorb the smoke generated during the operation, optimize the flow path of the smoke, ensure that the field of vision of the operation area is always clear, and provide a better operating environment for doctors.

[0032] Furthermore, a protective shell 10 is provided on the outer surface of the hilt 3, and a connecting shaft 11 is rotatably connected to the inner wall of the protective shell 10. A mounting tube 12 is provided on the outer surface of the connecting shaft 11, and the mounting tube 12 is clamped with the filter element 13. The connecting shaft 11 passes through the outer wall of the protective shell 10 on the side close to the cutter head 4, and a gear ring 14 is provided on the outer surface of the connecting shaft 11. The gear ring 14 is fixedly connected to the connecting shaft 11 and is located on the outer wall of the protective shell 10, and a knob 15 is provided on the side of the outer wall of the protective shell 10 close to the gear ring 14. The knob 15 is rotatably connected to the protective shell 10, and teeth 16 are provided on the outer surface of the knob 15, and the teeth 16 are meshed with the gear ring 14. By rotating the knob 15, the teeth 16 on the outer surface of the knob 15 drive the connecting shaft 11 to rotate intermittently, so that the replacement filter element 13 can easily replace the scrapped filter element 13,

[0033] It should be noted that the protective shell 10, connecting shaft 11, mounting tube 12 and filter core 13 in the above structure are all detachable, so that the filter core can be replaced and then continued to be used. In addition, the protective shell 10 is made of transparent material, so that the doctor can observe the use of the filter core 13 and avoid the reduction of the filtering effect caused by excessive use of the filter core 13.

[0034] Furthermore, a ratchet 17 is provided on one side of the protective shell 10 close to the gear ring, and a torsion spring is provided at the rotation position of the ratchet 17. The end of the ratchet 17 away from the rotation position is stuck in the depression of the gear ring 14. Through the provision of the ratchet 17, the connecting shaft 11 can only rotate in one direction, avoiding the re-filtration of the used filter element 13 caused by twisting the knob 15 in the wrong direction, thereby ensuring the filtering effect during the operation. By limiting the rotation direction of the knob 15, it can be ensured that the new, unused filter element 13 is correctly installed and put into use. This helps to maintain the optimal filtering performance of the filter element 13, ensuring that the surgical smoke is removed in a timely and effective manner, thereby maintaining a clear surgical field of view.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed or modified in any way.

Claims

1. A surgical electrosurgical unit with a suction device, characterized in that: It comprises a connecting line (2) arranged on an adapter, a handle (3) being arranged at one end of the connecting line (2) away from the adapter (1), a cutter head (4) being arranged at one end of the handle (3) away from the connecting line (2), a groove (8) being arranged on the outer surface of the handle (3), and a rotatable replacement filter element (13) being arranged in the groove (8).

2. The electrosurgical knife with a suction device according to claim 1, characterized in that: A suction tube 1 (5) is passed through and connected to the side of the knife handle (3) close to the knife head (4); an expansion opening (7) is provided on the side of the suction tube 1 (5) close to the knife head (4); the diameter of the expansion opening (7) gradually increases from the side close to the suction tube 1 (5) outward; and a suction tube 2 (6) is passed through and connected to the side of the knife handle (3) close to the connecting line (2).

3. The electrosurgical knife with a suction device according to claim 2, characterized in that: A sealing plug (9) is arranged in the groove (8), and the diameter of the sealing plug (9) is compatible with the first suction tube (5) and the second suction tube (6), and the second suction tube (6) is externally connected to a negative pressure adsorption device.

4. The electrosurgical knife with a suction device according to claim 3, characterized in that: The outer surface of the knife handle (3) is provided with a protective shell (10), and the inner wall of the protective shell (10) is rotatably connected to a connecting shaft (11).

5. The electrosurgical knife with a suction device according to claim 4, characterized in that: The outer surface of the connecting shaft (11) is provided with a mounting tube (12), and the mounting tube (12) is clamped with the filter core (13).

6. The electrosurgical knife with a suction device according to claim 5, characterized in that: The connecting shaft (11) passes through the outer wall of the protective shell (10) on a side close to the cutter head (4), and a gear ring (14) is provided on the outer surface of the connecting shaft (11).

7. The electrosurgical knife with a suction device according to claim 6, characterized in that: The gear ring (14) is fixedly connected to the connecting shaft (11) and is located on the outer wall of the protective shell (10); a knob (15) is provided on one side of the outer wall of the protective shell (10) close to the gear ring (14).

8. The electrosurgical knife with a suction device according to claim 7, characterized in that: The knob (15) is rotatably connected to the protective shell (10); teeth (16) are provided on the outer surface of the knob (15); and the teeth (16) are meshed with the gear ring (14).

9. The electrosurgical knife with a suction device according to claim 8, characterized in that: A pawl (17) is provided on one side of the protective shell (10) close to the gear ring, and a torsion spring is provided at the rotation position of the pawl (17).

10. The electrosurgical knife with a suction device according to claim 9, characterized in that: One end of the ratchet pawl (17) away from the rotating portion is clamped in a recessed portion of the gear ring (14).

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