An ultrasonic surgical blade, an ultrasonic surgical knife and an ultrasonic surgical knife system

Abstract

The application discloses an ultrasonic surgical knife head, an ultrasonic surgical knife and an ultrasonic surgical knife system, which comprise a first cutting structure and a balance structure, the first cutting structure comprises a first cutting surface and a second cutting surface, and the first cutting surface and the second cutting surface are both concave; the first cutting surface and the second cutting surface are oppositely arranged; a back cutting edge is formed between the first cutting surface and the second cutting surface; the balance structure comprises a first balance surface and a second balance surface; when the back cutting edge cuts the fascia, the first groove and the second groove are clamped into the position of the fascia, so that the depth of the knife head into the fascia is controllable, and the knife head does not slip during the cutting process of the fascia; the water mist is focused near the side of the knife head during the dispersion process, the dispersion energy of most water mists can be offset by the focusing, so that the number of water mists is effectively reduced, and the visual clarity of the operation is improved; the balance structure can reduce the transverse vibration, so that the stress received by the knife head during the vibration is reduced, the probability of the knife head breaking is reduced, and the service life of the knife head is prolonged.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an ultrasonic surgical scalpel head, an ultrasonic surgical scalpel, and an ultrasonic surgical scalpel system. Background Technology

[0002] In clinical practice, ultrasonic scalpels offer excellent results, such as clean incisions, rapid hemostasis, minimal thermal damage, and low smoke production. They have become an essential tool in clinical surgery. However, with continuous technological advancements, the demands on ultrasonic scalpels are increasing. These challenges primarily manifest in the fact that ultrasonic scalpels are susceptible to external interference and loads during operation, easily causing their vibration modes to shift from simple longitudinal vibration to other modes. This affects the scalpel's efficiency and cutting ability. Furthermore, current ultrasonic scalpels are difficult to control in depth during back incision, prone to slippage; large transverse vibrations lead to tip breakage; and significant water mist obstructs surgical vision. The curved tip structure presents manufacturing difficulties, so the sides are currently machined as straight surfaces. The cavitation effect on the sides causes water mist to disperse horizontally outwards, making precise control by clinicians challenging, thus impacting surgical outcomes and even endangering patient safety. Traditional ultrasonic scalpels are increasingly unable to meet these requirements. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art by proposing an ultrasonic surgical scalpel head, ultrasonic surgical scalpel, and ultrasonic surgical scalpel system.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An ultrasonic surgical blade includes a first cutting structure, the first cutting structure including a first cutting surface and a second cutting surface, both the first cutting surface and the second cutting surface being concave; the first cutting surface and the second cutting surface are disposed opposite to each other; a back cutting edge is formed between the first cutting surface and the second cutting surface.

[0005] Preferably, the first cut surface includes a first parallel surface and a first arc surface, one end of the first parallel surface is connected to the first arc surface, the other end of the first parallel surface is provided with a first protrusion, and a first groove is formed between the first parallel surface and the first protrusion; the second cut surface includes a second parallel surface and a second arc surface, one end of the second parallel surface is connected to the second arc surface, the other end of the second parallel surface is provided with a second protrusion, and a second groove is formed between the second parallel surface and the second protrusion, and the first groove and the second groove are symmetrically positioned.

[0006] An ultrasonic surgical tip includes a balancing structure, the balancing structure including a first balancing surface, one end of the first balancing surface extending along the top of the tip.

[0007] Preferably, the balancing structure further includes a second balancing surface, the first balancing surface being connected to the second balancing surface; one end of the second balancing surface extends along the bottom direction of the cutter head, and the second balancing surface is arc-shaped.

[0008] An ultrasonic surgical blade includes a first cutting structure and a balancing structure. The first cutting structure includes a first cutting surface and a second cutting surface, both of which are concave. The first and second cutting surfaces are arranged opposite to each other, and a back cutting edge is formed between the first and second cutting surfaces. The balancing structure includes a first balancing surface and a second balancing surface. One end of the first balancing surface extends along the top of the blade and is connected to the second balancing surface. One end of the second balancing surface extends along the bottom of the blade and is arc-shaped.

[0009] Preferably, it further includes a second cutting structure, the second cutting structure including a third cutting surface and a fourth cutting surface, the third cutting surface being located on one side of the cutter head, and the fourth cutting surface being located at the other end of the cutter head; the third cutting surface and the fourth cutting surface are arranged opposite to each other.

[0010] Preferably, it further includes a first side cut surface and a second side cut surface, both of which are concave in design; the first side cut surface includes a first side cut area and a second side cut area, the first side cut area is located on one side of the first cut surface, and the first side cut area is connected to the second side cut area; the width of the first side cut area decreases sequentially from one end of the second side cut area to the top of the cutter head; one end of the second side cut area extends along the bottom direction of the cutter head.

[0011] Preferably, the second side cut surface includes a third side cut area and a fourth side cut area. The third side cut area is located on one side of the second cut surface and is connected to the fourth side cut area. The width of the third side cut area decreases sequentially from one end of the fourth side cut area to the top of the cutter head. One end of the fourth side cut area extends along the bottom direction of the cutter head.

[0012] An ultrasonic scalpel includes a handle, a blade, and an ultrasonic scalpel head; the handle, the blade, and the scalpel head are connected in sequence.

[0013] An ultrasonic scalpel system includes the ultrasonic scalpel and a main unit connected to the handle via a cable.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention designs an ultrasonic surgical blade head, an ultrasonic surgical scalpel, and an ultrasonic surgical scalpel system. The first and second cutting surfaces are inwardly arc-shaped, allowing water mist to focus near the first and second cutting surfaces during dispersion. This focusing can cancel out most of the dispersion energy of the water mist, thereby effectively reducing the amount of water mist and improving the visual clarity of the surgery. When the back cutting blade cuts the fascia, the first and second grooves engage with the fascia, making the depth of the blade into the fascia controllable and preventing slippage during fascia cutting. Both the first and second side sections are concave, allowing the water mist to focus near the side of the blade during dispersion. This focusing helps to cancel out most of the dispersed energy of the water mist, effectively reducing the amount of water mist and improving surgical visual clarity. The blade's shape is asymmetrical, with its center of gravity offset from the axis. This causes lateral vibration (yaw) in the direction of the offset center of gravity during vibration. The greater the lateral vibration, the greater the stress on the blade, leading to fatigue fracture. The balancing structure reduces lateral vibration, effectively reducing the lateral vibration at the top of the blade caused by the offset. This reduces the stress on the blade during vibration, lowering the probability of blade breakage and increasing blade life. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the cutter head proposed in this invention; Figure 2 This is a schematic diagram of the cutter head from another angle proposed in this invention; Figure 3 This is a schematic diagram of the structure of the cutter head at another angle proposed in this invention; Figure 4 This is a schematic cross-sectional view of the cutting head proposed in this invention; Figure 5 This is a schematic diagram of the ultrasonic surgical scalpel proposed in this invention; Figure 6 This is a schematic diagram of the ultrasonic surgical system proposed in this invention.

[0016] Legend: 10. First cutting structure; 11. First cutting surface; 12. Second cutting surface; 13. Back cutting edge; 111. First parallel surface; 112. First arc surface; 113. First protrusion; 114. First groove; 121. Second parallel surface; 122. Second arc surface; 123. Second protrusion; 124. Second groove; 20. Balancing structure; 21. First balancing surface; 22. Second balancing surface; 30. Second cutting structure; 31. Third cutting surface; 32. Fourth cutting surface; 40. First side cutting surface; 50. Second side cutting surface; 41. First side cutting area; 42. Second side cutting area; 51. Third side cutting area; 52. Fourth side cutting area; 100. Handle; 200. Blade holder; 300. Blade head; 400. Cable; 500. Main unit. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first," "second," and "third" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more; furthermore, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] Reference Figures 1 to 6As shown, an ultrasonic surgical blade includes a first cutting structure 10, which includes a first cutting surface 11 and a second cutting surface 12, both of which are concave. The first cutting surface 11 and the second cutting surface 12 are arranged opposite to each other. A back cutting edge 13 is formed between the first cutting surface 11 and the second cutting surface 12. The first cutting surface 11 and the second cutting surface 12 are inwardly arc-shaped, allowing water mist to be focused on the first cutting surface 11 and the second cutting surface 12 during dispersion. By focusing, most of the dispersion energy of the water mist can be canceled out, thereby effectively reducing the amount of water mist and improving the visual clarity of the surgery.

[0020] The first cutting surface 11 includes a first parallel surface 111 and a first arc surface 112. One end of the first parallel surface 111 is connected to the first arc surface 112, and the other end of the first parallel surface 111 is provided with a first protrusion 113. A first groove 114 is formed between the first parallel surface 111 and the first protrusion 113. The second cutting surface 12 includes a second parallel surface 121 and a second arc surface 122. One end of the second parallel surface 121 is connected to the second arc surface 122, and the other end of the second parallel surface 121 is provided with a second protrusion 123. A second groove 124 is formed between the second parallel surface 121 and the second protrusion 123. The first groove 114 and the second groove 124 are symmetrically positioned. The back cutting blade 13 is generally arc-shaped. When the back cutting blade 13 back-cuts the fascia, the first groove 114 and the second groove 124 are engaged in the fascia position. In this way, the depth of the blade into the fascia can be controlled, and it is not easy to slip during the fascia cutting process.

[0021] An ultrasonic surgical tip includes a balancing structure 20, which includes a first balancing surface 21, one end of which extends along the top of the tip. The balancing structure 20 also includes a second balancing surface 22, which is connected to the first balancing surface 21. One end of the second balancing surface 22 extends along the bottom of the tip and is arc-shaped. The tip 300 is asymmetrical, with its center of gravity offset from the axis, causing transverse vibration (yaw) in the direction of this offset during vibration. The greater the transverse vibration, the greater the stress on the tip, potentially leading to fatigue fracture. The balancing structure 20 reduces this transverse vibration, effectively reducing the transverse vibration at the tip 300 caused by its eccentric top, thereby reducing the stress on the tip during vibration, lowering the probability of tip breakage, and increasing the tip's lifespan.

[0022] An ultrasonic surgical blade includes a first cutting structure 10 and a balancing structure 20. The first cutting structure 10 includes a first cutting surface 11 and a second cutting surface 12, both of which are concave. The first cutting surface 11 and the second cutting surface 12 are arranged opposite to each other, and a back cutting edge 13 is formed between the first cutting surface 11 and the second cutting surface 12. The balancing structure 20 includes a first balancing surface 21 and a second balancing surface 22. One end of the first balancing surface 21 extends along the top of the blade, and the first balancing surface 21 is connected to the second balancing surface 22. One end of the blade 22 extends along the bottom of the blade tip, and the second balance surface 22 is arc-shaped; the first cutting surface 11 and the second cutting surface 12 are inwardly arc-shaped, so that the water mist is focused near the first cutting surface 11 and the second cutting surface 12 during the dispersion process. By focusing, most of the dispersion energy of the water mist can be canceled out, thereby effectively reducing the amount of water mist and improving the visual clarity of the surgery; when the back cutting blade 13 cuts the fascia, the first groove 114 and the second groove 124 are inserted into the fascia position, so that the depth of the blade tip into the fascia can be controlled, and it is not easy to slip during the fascia cutting process.

[0023] The ultrasonic surgical blade also includes a second cutting structure 30, which includes a third cutting surface 31 and a fourth cutting surface 32. The third cutting surface 31 is located on one side of the blade, and the fourth cutting surface 32 is located at the other end of the blade; the third cutting surface 31 and the fourth cutting surface 32 are arranged opposite to each other.

[0024] The ultrasonic surgical blade also includes a first side cut surface 40 and a second side cut surface 50, both of which are concave. The first side cut surface 40 includes a first side cut region 41 and a second side cut region 42. The first side cut region 41 is located on one side of the first cut surface 41 and is connected to the second side cut region 42. The width of the first side cut region 41 decreases sequentially from one end of the second side cut region 42 to the top of the blade. One end of the second side cut region 42 extends along the bottom of the blade. The second side cut surface 50 includes a third side cut region 51 and a fourth side cut region 52. The third side-cutting area 51 is located on one side of the second cut surface 12 and is connected to the fourth side-cutting area 52. The width of the third side-cutting area 51 decreases sequentially from one end of the fourth side-cutting area 52 to the top of the blade. One end of the fourth side-cutting area 52 extends along the bottom of the blade. The first side-cutting area 40 and the second side-cutting area 50 are both concave in design, so that the water mist is focused near the side of the blade 300 during the dispersion process. By focusing, most of the dispersion energy of the water mist can be canceled out, thereby effectively reducing the amount of water mist and improving the visual clarity of the surgery.

[0025] An ultrasonic scalpel includes a handle 100, a blade 200, and an ultrasonic scalpel head 300; the handle 100, blade 200, and scalpel head 300 are connected in sequence; an ultrasonic scalpel system includes an ultrasonic scalpel and a main unit 500 connected to the handle 100 via a cable 400.

[0026] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An ultrasonic surgical blade, characterized in that, The device includes a first cutting structure, which comprises a first cutting surface and a second cutting surface, both of which are concave. The first cutting surface and the second cutting surface are arranged opposite to each other. A back cutting edge is formed between the first cutting surface and the second cutting surface. The first cutting surface includes a first parallel surface and a first arc surface. One end of the first parallel surface is connected to the first arc surface, and the other end of the first parallel surface is provided with a first protrusion. A first groove is formed between the first parallel surface and the first protrusion. The second cutting surface includes a second parallel surface and a second arc surface. One end of the second parallel surface is connected to the second arc surface, and the other end of the second parallel surface is provided with a second protrusion. A second groove is formed between the second parallel surface and the second protrusion. The first groove and the second groove are symmetrically positioned.

2. The ultrasonic surgical blade according to claim 1, characterized in that, It includes a balancing structure, which includes a first balancing surface, one end of which extends along the top of the cutter head.

3. The ultrasonic surgical tip according to claim 2, characterized in that, The balancing structure further includes a second balancing surface, and the first balancing surface is connected to the second balancing surface; one end of the second balancing surface extends along the bottom of the cutter head, and the second balancing surface is arc-shaped.

4. The ultrasonic surgical tip according to claim 1, characterized in that, It also includes a first side cut surface and a second side cut surface, both of which are concave in design; the first side cut surface includes a first side cut area and a second side cut area, the first side cut area is located on one side of the first cut surface, and the first side cut area is connected to the second side cut area; the width of the first side cut area decreases sequentially from one end of the second side cut area to the top of the cutter head; one end of the second side cut area extends along the bottom direction of the cutter head.

5. An ultrasonic surgical tip according to claim 4, characterized in that, The second side cut surface includes a third side cut area and a fourth side cut area. The third side cut area is located on one side of the second cut surface and is connected to the fourth side cut area. The width of the third side cut area decreases sequentially from one end of the fourth side cut area to the top of the cutter head. One end of the fourth side cut area extends along the bottom direction of the cutter head.

6. An ultrasonic surgical scalpel, characterized in that, It includes a handle, a blade, and an ultrasonic surgical blade as described in any one of claims 1-5; the handle, the blade, and the blade are connected in sequence.

7. An ultrasonic surgical scalpel system, characterized in that, Includes the ultrasonic scalpel as described in claim 6 and a main unit connected to the handle via a cable.

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