Electrotome capable of cleaning and collecting scabs
By designing a scab storage box and barrier on the electrosurgical unit, the problem of difficult scab collection is solved, enabling the cleaning and collection of scabs and improving surgical efficiency.
Patent Information
- Application Number
- CN202422227783.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The scabs produced during surgery by existing electrosurgical units are difficult to collect uniformly, affecting surgical efficiency and cutting function.
Design an electrosurgical unit that can clean and collect scabs, comprising a pen body, a blade, a scab storage box, a scraper, and a barrier. The scraper removes the scabs, and the barrier prevents them from falling off. The scabs are stored in the storage box.
It enables effective cleaning and unified collection of scabs, improving surgical efficiency and the effectiveness of the scalpel tip.
Smart Images

Figure CN223529519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to an electrosurgical unit that can clean and collect scabs. Background Technology
[0002] An electrosurgical unit (also known as an electrosurgical pen) is an electrosurgical instrument that replaces a mechanical scalpel for tissue cutting. It heats the tissue by generating a high-frequency, high-voltage current at the tip of its effective electrode, achieving tissue separation and coagulation, thereby achieving the purposes of cutting and hemostasis.
[0003] When using an electrocautery scalpel to cut soft tissue or pinpoint bleeding points during surgery, a significant amount of scabs will form on the scalpel tip. These scabs can impair the scalpel's cutting function and clotting ability. Usually, a scraping blade is used to remove the scabs, but the frequent scraping of the scalpel tip during surgery reduces efficiency. To address this, some electrocautery scalpels with retractable blades have been developed. As the scalpel tip retracts, a scraping blade removes the scabs. However, the removed scabs often fall onto the operating table, the patient, or even the surgical site, making it difficult to collect them all. Utility Model Content
[0004] Therefore, this invention provides an electrosurgical unit capable of cleaning and collecting scabs to solve one or more of the aforementioned problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An electrosurgical unit for cleaning and collecting scabs includes a pen body, a blade, a scab storage box, a scraper, and a barrier. The rear portion of the blade is movably disposed within the pen body along its length. The scab storage box is disposed at the front end of the pen body and has an opening at its front end. The front end of the blade can extend or retract into the scab storage box through the opening. The scraper is disposed within the scab storage box to scrape the retracted blade. The barrier is disposed at the opening to prevent scraped scabs from falling out through the opening.
[0007] Furthermore, the barrier is a conical sleeve made of rubber, with the large end of the conical sleeve fixed at the opening and the small end of the conical sleeve facing the pen body.
[0008] Furthermore, there are two scrapers, which are respectively disposed on both sides of the blade head. The shape of the scraper facing the blade head is adapted to the shape of the blade head and is provided with uniform serrations.
[0009] Furthermore, the scab storage box is provided with a pivot extending in the front-to-back direction, one end of the scraper is rotatably connected to the pivot, and a torsion spring is sleeved on the pivot to make the other end of the scraper fit tightly against the blade head.
[0010] Furthermore, the scab storage box is detachably disposed at the front end of the pen body.
[0011] This utility model has the following advantages:
[0012] During the procedure, when a scab forms on the blade, the blade is retracted. As the blade retracts, the scab is scraped off by the scraper. The scraped scab falls into the scab storage box. Because there is a barrier at the front opening of the scab storage box, the scab temporarily stored in the scab storage box cannot or is not easy to fall off from the opening, thus solving the technical problem of the difficulty in uniformly collecting the scraped scab.
[0013] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0016] Figure 1 A schematic diagram of the structure of an electrosurgical unit capable of cleaning and collecting scabs is provided for an embodiment of this utility model;
[0017] Figure 2 for Figure 1 Enlarged view of A in the middle;
[0018] Figure 3A schematic diagram illustrating the positional relationship between the scraper and the blade head of an electrosurgical unit capable of cleaning and collecting scabs, provided for an embodiment of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of a scraper for an electrosurgical unit that can clean and collect scabs, provided as an embodiment of the present invention.
[0020] In the diagram: 1-pen body, 2-blade head, 3-scab storage box, 4-scraper, 5-barrier, 6-opening, 7-serration, 8-pivot, 9-support plate, 10-torsion spring. Detailed Implementation
[0021] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0022] like Figure 1-4 As shown, this embodiment provides an electrosurgical unit capable of cleaning and collecting scabs, including a pen body 1, a blade head 2, a scab storage box 3, a scraper 4, and a barrier 5. The rear part of the blade head 2 is movably disposed within the pen body 1 along its length, meaning the blade head 2 can extend and retract relative to the pen body 1. The length of the blade head 2 can be controlled according to the user's needs during extension and retraction. The scab storage box 3 is disposed at the front end of the pen body 1, and the front end of the scab storage box 3 has an opening 6. The front end of the blade head 2 can extend or retract into the scab storage box 3 through the opening 6. The scraper 4 is disposed within the scab storage box 3 to scrape the retracted blade head 2. The barrier 5 is disposed at the opening 6 to prevent the scraped scabs from falling out of the opening 6.
[0023] During the procedure, when a scab forms on the blade 2, the blade 2 is retracted. As the blade 2 retracts, the scab is scraped off by the scraper 4. The scraped scab falls into the scab storage box 3. Because a barrier 5 is provided at the front opening 6 of the scab storage box 3, the scab temporarily stored in the scab storage box 3 cannot or is not easily dropped from the opening 6, thus solving the technical problem of the difficulty in uniformly collecting the scraped scab.
[0024] A barrier 5 is installed at the front opening 6 of the scab storage box 3. It has a perforation for the blade 2 to pass through. As the blade 2 moves through the perforation, it seals the perforation, thus closing the front opening 6 of the scab storage box 3. The barrier 5 acts like a plug. In this embodiment, the barrier 5 is a conical sleeve made of rubber with a certain wall thickness. The larger end of the conical sleeve is fixed at the opening 6, and the smaller end faces the pen body 1. The diameter of the smaller end of the conical sleeve is slightly larger than the diameter of the blade 2. Thus, during the retraction of the blade 2 with the scab, the smaller end of the conical sleeve will not scrape off the scab. Furthermore, after the scraper 4 scrapes off the scab, the blade 2 can easily re-exit through the conical sleeve. Since the only outlet (the front opening 6 of the scab storage box 3) is closed by the barrier 5, and because the opening diameter of the smaller end of the conical sleeve is very small, the fallen scab is difficult to fall out through the opening of the smaller end of the conical sleeve and can only be temporarily stored inside the scab storage box 3.
[0025] The scraper 4 is made of a hard material and is used to scrape off the scabs on the blade head 2. The shape of its inner side (facing the blade head 2) matches the circumferential shape of the blade head 2. In this embodiment, the inner side of the scraper 4 is provided with uniform serrations 7, which improves the scraping effect on the scabs. Generally, multiple scrapers 4 are provided. In this embodiment, two scrapers 4 are provided, one on each side of the blade head 2. The two scrapers 4 can cover the cylindrical blade head 2 circumferentially.
[0026] In this embodiment, a pivot 8 extending in the front-to-back direction is provided inside the scab storage box 3. The pivot 8 is connected to the scab storage box 3 via two support plates 9. One end of the scraper 4 is rotatably connected to the pivot 8. A torsion spring 10 is sleeved on the pivot 8 to ensure that the other end of the scraper 4 is in close contact with the blade head 2. One leg of the torsion spring 10 acts on the scraper 4, and the other leg acts on the support plate 9 or the inner wall of the scab storage box 3. In this way, the scraper 4 can be elastically attached to the outer surface of the blade head 2.
[0027] In this embodiment, the scab storage box 3 is detachably disposed at the front end of the pen body 1. This structure is designed for non-disposable electrosurgical units; after the surgery is completed, the scab storage box 3 is removed, and the scab inside is emptied into a medical waste bin. Exemplarily, the rear end of the scab storage box 3 is provided with an internal thread, and the front end of the pen body 1 is provided with an external thread, and the scab storage box 3 and the pen body 1 are connected by threads.
[0028] The electrosurgical unit capable of cleaning and collecting scabs in this embodiment is an improvement on existing electrosurgical units capable of cleaning scabs, such as a retractable self-cleaning electrosurgical pen (CN217310562U) and an adjustable-head electrosurgical pen (CN213406256U). The retractable self-cleaning electrosurgical pen uses a motor to drive the head to extend and retract, while the adjustable-head electrosurgical pen uses a push rod to drive the head to extend and retract. That is, the extension and retraction setting of the head is prior art and is not the technical problem to be solved by this application. Therefore, the extension and retraction setting of the head will not be described in this embodiment.
[0029] The electrosurgical knife of this embodiment, which can clean and collect scabs, is essentially an electrosurgical knife. Therefore, in addition to the above-mentioned structure, it also includes a coagulation bond and a cutting bond, which are used for different applications. It also includes a conductor wire for supplying power to the blade head. Apart from the blade head, scraper, and conductor wire, the rest of the structure is non-conductive.
[0030] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. An electrosurgical unit capable of cleaning and collecting scabs, characterized in that, The device includes a pen body, a blade, a scab storage box, a scraper, and a barrier. The rear part of the blade is movably disposed within the pen body along its length. The scab storage box is disposed at the front end of the pen body and has an opening at its front end. The front end of the blade can extend or retract into the scab storage box through the opening. The scraper is disposed within the scab storage box to scrape the retracted blade. The barrier is disposed at the opening to prevent scraped scabs from falling out through the opening.
2. The electrosurgical unit capable of cleaning and collecting scabs according to claim 1, characterized in that, The barrier is a conical sleeve made of rubber, with the large end of the conical sleeve fixed at the opening and the small end of the conical sleeve facing the pen body.
3. The electrosurgical unit capable of cleaning and collecting scabs according to claim 1, characterized in that, The scraper is provided in two parts, which are respectively disposed on both sides of the blade head. The shape of the scraper facing the blade head is adapted to the shape of the blade head and is provided with uniform serrations.
4. The electrosurgical unit capable of cleaning and collecting scabs according to claim 1, characterized in that, The scab storage box is provided with a pivot extending in the front-to-back direction. One end of the scraper is rotatably connected to the pivot, and a torsion spring is sleeved on the pivot to make the other end of the scraper fit tightly against the blade head.
5. The electrosurgical unit capable of cleaning and collecting scabs according to claim 1, characterized in that, The scab storage box is detachably mounted on the front end of the pen body.
Citation Information
Patent Citations
Electric knife pen with adjustable knife head
CN213406256U
Telescopic self-cleaning electric knife pen
CN217310562U