Soft tissue emulsification suction cutting ultrasonic scalpel and ultrasonic operating handle

Abstract

The utility model relates to the technical field of medical equipment, especially to a soft tissue emulsification suction cutting ultrasonic operating knife and ultrasonic operating handle, including the knife bar and the knife head connected in the knife bar front end, the knife bar includes the knife handle section and the transition section gradually from back to front, the front end of the most front end extension section forms the knife head, and the diameter of extension section gradually decreases according to the order from back to front, the front part peripheral wall of the most front end extension section forms the heat dissipation section, and its beneficial effect is that the transition section can be multiple groups, and the different groups of amplitude section and extension section are connected with each other, form an energy transmission path of gradual transition, and further optimize the amplitude of the whole knife bar, the front part peripheral wall of the most front end extension section forms the heat dissipation section and is used for radiating the heat generated in the operation process. The design of heat dissipation section helps to prevent the scalpel from overheating, thereby protecting the surrounding tissue and reducing the operation risk.

Description

Technical Field

[0001] This utility model relates to the technical field of medical equipment, and in particular to an ultrasonic scalpel for soft tissue emulsification, suction and cutting, and an ultrasonic operating handle. Background Technology

[0002] With the rapid development of modern medicine, ultrasonic surgical instruments are increasingly used in clinical surgical treatments. They apply ultrasonic energy to surgery, offering advantages such as precise cutting, safety, tissue selectivity, and low-temperature hemostasis. This greatly enriches surgical methods, improves the quality of surgical procedures, and alleviates patient suffering to some extent. Improving heat dissipation and cutting efficiency is crucial for enhancing surgical efficiency. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a method to improve surgical efficiency.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] In a first aspect, this utility model provides a tool holder and a cutting head connected to the front end of the tool holder. The tool holder includes a shank section and a transition section from back to front. The transition section includes a variable amplitude section and an extension section connected to the front end of the variable amplitude section. The transition sections are configured as one or more groups. When the transition sections are in one group, the last variable amplitude section is connected to the shank section. When the transition sections are in multiple groups, adjacent variable amplitude sections and extension sections in different groups are connected. The front end of the foremost extension section forms the cutting head. The diameter of the extension sections decreases from back to front. The front outer peripheral wall of the foremost extension section forms a heat dissipation section.

[0008] Secondly, this utility model provides an ultrasonic operating handle, including the components described above, and further including a housing, an ultrasonic transducer, and a head cap assembly. The ultrasonic transducer is supported inside the housing, and the head cap assembly is fixedly connected to the front end of the housing and connected to the front end of the ultrasonic transducer. The cutting head extends out of the head cap assembly from within the head cap assembly. The inner cavity of the head cap assembly forms the head cap assembly, and the gap between the front end of the head cap assembly and the head cap assembly forms the outlet of the head cap assembly. The head cap assembly circumferentially surrounds the outer periphery of the heat dissipation section, so that the outer periphery of the head cap assembly forms a cooling cavity.

[0009] (III) Beneficial Effects

[0010] The beneficial effects of this invention are as follows: the transition section can be set as one or more groups. When set as multiple groups, the amplitude-changing sections and extension sections of different groups are connected to each other to form a gradually transitioning energy transfer path, thereby optimizing the overall amplitude of the scalpel and improving surgical efficiency.

[0011] The diameter of the extension section decreases from back to front. This design helps reduce energy loss during transmission and increases the amplitude of the scalpel tip, thereby improving surgical efficiency. The decreasing diameter of the extension section also allows the scalpel to be more flexible and precise during cutting.

[0012] The outer peripheral wall of the foremost extension forms a heat dissipation section to dissipate heat generated during surgery. This heat dissipation section helps prevent the scalpel from overheating, thereby protecting surrounding tissues and reducing surgical risks. Attached Figure Description

[0013] Figure 1 This is one of the structural schematic diagrams of the planar cutter head of this utility model;

[0014] Figure 2 This is the second schematic diagram of the planar cutter head of this utility model;

[0015] Figure 3 This is the third schematic diagram of the planar cutter head of this utility model;

[0016] Figure 4 This is the fourth schematic diagram of the planar cutter head of this utility model;

[0017] Figure 5 This is the fifth schematic diagram of the planar cutter head of this utility model;

[0018] Figure 6 This is the sixth schematic diagram of the planar cutter head of this utility model;

[0019] Figure 7 This is one of the structural schematic diagrams of the V-shaped cutter head of this utility model;

[0020] Figure 8 This utility model Figure 7 A magnified schematic diagram of the partial structure at point A in the middle;

[0021] Figure 9 This is the second schematic diagram of the structure of the V-shaped cutter head of this utility model;

[0022] Figure 10 This is the third schematic diagram of the structure of the V-shaped cutter head of this utility model;

[0023] Figure 11 This is one of the structural schematic diagrams of the ring-shaped key head of this utility model;

[0024] Figure 12This is the second schematic diagram of the structure of the ring-shaped key head of this utility model;

[0025] Figure 13 This is a schematic diagram of the ultrasonic operating handle of this utility model;

[0026] Figure 14 This is a schematic diagram of the front part and the front structure of the head cap assembly of this utility model.

[0027] [Explanation of Labels in the Attached Image]

[0028] 1. Tool holder; 11. Tool shank section; 12. Transition section; 121. Amplitude section; 122. Extension section;

[0029] X, planar cutting head;

[0030] B. V-shaped cutting edge; C. Cutting head end; Y. V-shaped blade head;

[0031] D. Suction channel; E. Suction hole;

[0032] 3. Cutting ball; F. Through hole; G. Circular cutting edge; H. Arc-shaped contact part; Z. Ring-shaped key head;

[0033] 4. Outer shell;

[0034] 5. Ultrasonic transducer;

[0035] 6. Head cap assembly; I. Head cap assembly; J. Cooling chamber. Detailed Implementation

[0036] To better explain and facilitate understanding of this utility model, the following description is provided in conjunction with the appendix. Figures 1-14 This invention will be described in detail through specific embodiments. Wherein, directional terms such as "upper" and "lower" are used in this document. Figure 1 The orientation is used as a reference.

[0037] Example 1:

[0038] Reference Figures 1-14 An embodiment of this utility model provides a tool holder 1 and a cutting head connected to the front end of the tool holder 1. The tool holder 1 includes a handle section 11 and a transition section 12 from back to front. The transition section 12 includes a variable amplitude section 121 and an extension section 122 connected to the front end of the variable amplitude section 121. The transition sections 12 are configured as one or more groups. When the transition sections 12 are configured as one group, the last variable amplitude section 121 is connected to the handle section 11. When the transition sections 12 are configured as multiple groups, adjacent variable amplitude sections 121 and extension sections 122 in different groups are connected. The front end of the foremost extension section 122 forms a cutting head. The diameter of the extension section 122 decreases in the order from back to front. The front outer peripheral wall of the foremost extension section 122 forms a heat dissipation section.

[0039] In this embodiment, the scalpel handle 1 is the main body of the scalpel, responsible for transmitting energy and providing operational stability. The scalpel handle 1 is further subdivided into a handle section 11 and a transition section 12. The handle section 11, located at the rear of the scalpel handle 1, is the part connecting to the ultrasonic transducer 5. It is responsible for effectively converting and transferring the energy transmitted by the handle section 11 to the scalpel head. The transition section 12 includes an amplitude-adjusting section 121 and an extension section 122. The amplitude-adjusting section 121 is used to adjust the amplitude or energy transmission efficiency, while the extension section 122 is used to further transfer the energy to the scalpel head. The transition section 12 can be configured as one or more groups. When configured as multiple groups, different groups of amplitude-adjusting sections 121 and extension sections 122 are interconnected, forming a gradually transitioning energy transmission path, thereby optimizing the overall resonant frequency of the scalpel handle 1. Furthermore, when the scalpel handle 1 is long, such as when the length of the scalpel handle 1 is greater than 120 mm, the transition section 12 can be configured as multiple groups.

[0040] The diameter of the extension section 122 decreases from back to front. This design helps reduce energy loss during transmission and increases the amplitude of the blade. The decreasing diameter of the extension section 122 also allows the scalpel to be more flexible and precise during cutting.

[0041] The transition section 12 plays a good role in amplitude variation, effectively increasing the amplitude of the cutter head to 300-400 micrometers, while the amplitude of the contact surface between the cutter bar 1 and the ultrasonic transducer 5 is only about 30 micrometers, which greatly improves the cutting and emulsification efficiency of the product.

[0042] The anterior outer peripheral wall of the foremost extension 122 forms a heat dissipation section to dissipate heat generated during surgery. This heat dissipation section helps prevent the scalpel from overheating, thereby protecting surrounding tissues and reducing surgical risks.

[0043] The heat dissipation section does not require special design and can be cooled by filling with liquid.

[0044] The heat dissipation section is located at the front end of the tool holder 1, close to the tool head. Therefore, reducing the temperature of the heat dissipation section can effectively reduce the problem of the tool head.

[0045] Example 2:

[0046] Reference Figures 1-6 In addition to possessing all the technical solutions of Embodiment 1 described above, the embodiments of this utility model further possess the following technical solutions:

[0047] The front end of the scalpel 1 is a radially extending plane, so that the scalpel head forms a planar scalpel head X. The outer edge of the planar scalpel head X is the cutting edge. Since the cutting edge of the planar scalpel head X is regular and continuous, even if the scalpel 1 is rotated axially, the shape of the cutting edge will not change, which helps to ensure the stability and accuracy of the procedure during soft tissue surgery.

[0048] Example 3:

[0049] Reference Figures 7-10 In addition to possessing all the technical solutions of Embodiment 1 described above, the embodiments of this utility model further possess the following technical solutions:

[0050] The front end of the blade holder 1 is radially provided with a V-shaped groove, and the opening of the V-shaped groove faces forward, so that the blade head forms a V-shaped blade head Y. The outer edge of the V-shaped blade head Y forms a V-shaped cutting edge B and a cutting head end C, which is suitable for soft tissue and fibrous tissue.

[0051] The cutting head end C is the two ends of the V-shaped blade Y, and the cutting head end C has a flat edge to adjust the cutting area between the blade and the tissue during the cutting process, so as to utilize the cavitation effect of water molecules to cut, optimize the cutting effect, and improve surgical efficiency.

[0052] Example 4:

[0053] Reference Figures 1-10 , Figure 13 and Figure 14 In addition to possessing all the technical solutions of embodiments 1, 2, or 3 described above, the embodiments of this utility model further possess the following technical solutions:

[0054] A suction channel D extending along the axis is formed inside the cutter bar 1, and the suction channel D passes through the cutter head and the rear end of the cutter bar 1; the suction channel D can be used to connect a negative pressure device so that the suction channel D forms a negative pressure channel that can attract the medium.

[0055] In this embodiment, the suction channel D is an internal channel extending along the axis of the blade 1. It starts from the rear end of the blade 1 and extends to the front end of the blade head. The design of this channel allows the scalpel to attract and remove media such as blood, tissue fragments, and coolant from the surgical site while cutting.

[0056] When the suction channel D is connected to a negative pressure device, such as a vacuum pump, a negative pressure is created inside the channel. This negative pressure draws out the medium from the surgical site and removes it outside the surgical area through the suction channel D. This helps keep the surgical site clear and clean, improving the visibility and safety of the surgery. Simultaneously, the medium flowing inside the scalpel handle 1 also carries away some of the heat from the handle, improving its heat dissipation.

[0057] Example 5:

[0058] Reference Figures 1-10 In addition to possessing all the technical solutions of Embodiment 4 described above, the embodiments of this utility model further possess the following technical solutions:

[0059] A suction hole F is provided on the front side wall of the tool holder 1 near the tool head, and the suction hole F is connected to the suction channel D; the diameter of the suction hole F is 0.4-0.6mm.

[0060] In this embodiment, when the front end of the suction channel D is blocked by tissue, liquid can be circulated and cooled through the suction port F to avoid overheating of the blade and causing secondary harm to the patient, thus improving the safety of its use.

[0061] When cutting with an ultrasonic scalpel, because the diameter of the suction channel D is much larger than the diameter of the suction orifice F, under normal circumstances, the influence of the suction orifice F on the suction force of the suction channel D is almost negligible. By controlling the diameter of the suction orifice F within the range of 0.4-0.6 mm, its influence on the suction force of the suction channel D can be further reduced, improving the reliability of its use.

[0062] Example 6:

[0063] Reference Figures 11-14 In addition to possessing all the technical solutions of Embodiment 1 described above, the embodiments of this utility model further possess the following technical solutions:

[0064] A cutting ball 3 is fixedly connected to the front end of the cutter bar 1. The cutting ball 3 has a through hole F along its first diameter direction. The through hole F is parallel to one diameter direction of the cutter bar 1, so that two symmetrical circular cutting edges G are formed on both radial sides of the cutting ball 3, and an arc-shaped contact part H is formed at the front end of the cutter head, thereby making the cutter head form a ring-shaped cutter head Z.

[0065] In this embodiment, the cutting ball 3 is a sphere or near-sphere structure. A through hole F is opened along the first diameter direction of the cutting ball 3, that is, any straight line passing through the center of the ball. Due to the presence of the through hole F, the cutting ball 3 forms two symmetrical circular regions on both radial sides. These regions are used as cutting edges in function. The symmetry of the circular cutting edges G ensures the balance and stability during cutting.

[0066] Since the circular cutting edge G is not parallel to the axial vibration direction of the tool holder 1, and the plane where the circular cutting edge G is located is parallel to the axial vibration direction of the tool holder 1, the circular cutting edge G can be used as a scraper. In addition, the curved contact part H can still cut soft tissue by relying on the cavitation effect, thus ensuring the flexibility of the ring-shaped tool head Z.

[0067] Example 7:

[0068] Reference Figures 1-14 In addition to possessing all the technical solutions of any of the above embodiments, the embodiments of this utility model further possess the following technical solutions:

[0069] The outer wall of the extension section 122 is a cone with the small end facing forward. One, several or all of the extension sections 122 can be cones with the small end facing forward. This design helps to reduce energy loss during transmission and increase the amplitude of the cutter head.

[0070] Example 8:

[0071] Reference Figures 1-14 In addition to possessing all the technical solutions of any of the above embodiments, the embodiments of this utility model further possess the following technical solutions:

[0072] The tool holder section 11 has a threaded hole axially opened at its rear end, and a wrench slot is opened on the outer peripheral wall of the tool holder section 11. The wrench slots are configured as two symmetrical ones along the axial direction of the tool holder section 11; the wrench slots are configured as stepped slots to form a foolproof groove.

[0073] In this embodiment, the threaded hole and the transducer's amplitude rod are threaded together. A torque wrench with a torque range of 1.6-2.8 N·m is used to tighten and fix the cutter bar 1 and the amplitude rod. A fixed torque value ensures consistency for future customer use. If the cutter bar 1 is too loose, the high-frequency vibration during ultrasonic wave propagation will cause the threads to loosen, preventing the ultrasonic waves from traveling forward and causing the cutter bar 1 to lose its cutting ability. Excessive torque can damage the transducer or the threads of the cutter bar 1. Damaged threads will cause abnormal noise and prevent the cutter bar 1 from functioning properly. A fixed torque value improves the cutting efficiency, safety, stability, and product consistency of the cutter bar 1.

[0074] Because the wrench slot is a foolproof slot, it has a unique way of engaging with the wrench, which ensures the reliability of the tool holder 1 when it is twisted.

[0075] Example 9:

[0076] Figures 1-14 In addition to providing an ultrasonic operating handle, the embodiments of this utility model, including any of the above embodiments, also include a housing 4, an ultrasonic transducer 5, and a head cap assembly 6. The ultrasonic transducer 5 is supported inside the housing 4, and the head cap assembly 6 is fixedly connected to the front end of the housing 4 and connected to the front end of the ultrasonic transducer 5. The blade extends out of the head cap assembly 6 from inside the head cap assembly 6. The inner cavity of the head cap assembly 6 forms a head cap assembly I, and the gap between the front end of the head cap assembly 6 and the heat dissipation section forms the outlet of the head cap assembly I. The head cap assembly I circumferentially surrounds the outer periphery of the heat dissipation section so that a cooling cavity J is formed on the outer periphery of the head cap assembly I.

[0077] In this embodiment, a medium liquid, such as physiological saline, can be introduced into the head cap assembly I. Under natural flow or negative pressure at the front end of the suction channel D, the medium liquid will flow over the part of the scalpel exposed at the head cap assembly 6. Under the action of high-frequency vibration, the medium liquid will be atomized, and at the same time, the temperature of the scalpel will be reduced.

[0078] At the same time, the atomized medium can flush the surgical site, improve visibility during the surgery, and thus improve the safety of the procedure.

[0079] The cooling chamber J can further reduce the temperature of the tool holder 1 and improve its operational stability.

[0080] It can be understood that, except for conflicting parts, the above embodiments 1-9 can be freely combined to form other embodiments of this utility model.

[0081] In the description of this utility model, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0082] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0083] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is 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 "beneath" the second feature can mean that the first feature is 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.

[0084] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0085] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A soft tissue emulsification suction cutting ultrasonic scalpel, characterized in that: It includes a tool holder (1) and a tool head connected to the front end of the tool holder (1). The tool holder (1) includes a tool shank section (11) and a transition section (12) from back to front. The transition section (12) includes a variable amplitude section (121) and an extension section (122) connected to the front end of the variable amplitude section (121). The transition section (12) is configured as one or more groups. When the transition section (12) is one group, the last end of the amplitude-changing section (121) is connected to the tool holder section (11). When the transition section (12) is configured as multiple groups, adjacent amplitude-changing sections (121) and extension sections (122) of different groups are connected. The front end of the frontmost extension section (122) forms the cutting head. The diameter of the extension section (122) decreases in the order from back to front. The outer peripheral wall of the foremost extension (122) forms a heat dissipation section.

2. The ultrasonic surgical scalpel for soft tissue emulsification, suction, and cutting as described in claim 1, characterized in that: The front end of the cutter bar (1) is a radially extending plane so that the cutter head forms a planar cutter head (X).

3. The ultrasonic surgical scalpel for soft tissue emulsification, suction, and cutting as described in claim 1, characterized in that: The front end of the cutter bar (1) is radially provided with a V-shaped groove, and the opening of the V-shaped groove faces forward, so that the cutter head forms a V-shaped cutter head (Y), and the outer edge of the V-shaped cutter head (Y) forms a V-shaped cutting edge (B) and a cutting head end (C).

4. The ultrasonic surgical scalpel for soft tissue emulsification, suction, and cutting as described in claim 1, characterized in that: A suction channel (D) extending along the axis is formed inside the cutter bar (1), and the suction channel (D) passes through the cutter head and the rear end of the cutter bar (1); The suction channel (D) can be used to connect a negative pressure device so that the suction channel (D) forms a negative pressure channel capable of attracting the medium.

5. The soft tissue emulsification suction cutting ultrasonic scalpel as described in claim 4, characterized in that: The blade holder (1) has a suction hole (F) on the front side wall near the blade head, and the suction hole (F) is connected to the suction channel (D); The diameter of the suction hole (F) is 0.4-0.6 mm.

6. The ultrasonic surgical scalpel for soft tissue emulsification, suction, and cutting as described in claim 1, characterized in that: The front end of the cutter bar (1) is fixedly connected to a cutting ball (3). The cutting ball (3) has a through hole (F) along its first diameter direction. The through hole (F) is parallel to one diameter direction of the cutter bar (1) so as to form two symmetrical circular cutting edges (G) on both radial sides of the cutting ball (3) and form an arc surface contact part (H) at the front end of the cutter head, thereby making the cutter head form a ring-shaped cutter head (Z).

7. The ultrasonic surgical scalpel for soft tissue emulsification, suction, and cutting as described in claim 1, characterized in that: The outer wall of the extension section (122) is a cone shape with the small end facing forward.

8. The ultrasonic scalpel for soft tissue emulsification and suction cutting as described in any one of claims 1-7, characterized in that: The rear end of the tool holder section (11) is provided with a threaded hole in the axial direction; a wrench slot is provided on the outer peripheral wall of the tool holder section (11), and the wrench slot is configured as two symmetrical slots along the axial direction of the tool holder section (11); The wrench slot is configured as a stepped slot to form a foolproof groove.

9. An ultrasonic operating handle, characterized in that: The soft tissue emulsification suction and cutting ultrasonic scalpel as described in any one of claims 1-8 further includes a housing (4), an ultrasonic transducer (5), and a tip cap assembly (6), wherein the ultrasonic transducer (5) is supported inside the housing (4), the tip cap assembly (6) is fixedly connected to the front end of the housing (4), the soft tissue emulsification suction and cutting ultrasonic scalpel is connected to the front end of the ultrasonic transducer (5), and the scalpel tip extends out of the tip cap assembly (6) from within the tip cap assembly (6); The inner cavity of the head cap assembly (6) forms the head cap assembly (I), and the gap between the front end of the head cap assembly (6) and the soft tissue emulsification suction cutting ultrasonic scalpel forms the outlet of the head cap assembly (I). The head cap assembly (I) circumferentially surrounds the outer periphery of the heat dissipation section, so that the head cap assembly (I) forms a cooling cavity (J) on the outer periphery of the soft tissue emulsification suction cutting ultrasonic scalpel.

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