Ultrasonic scalpel head and surgical scalpel

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to an ultrasonic scalpel head and a surgical scalpel. The knife body (10) is columnar; the cutting part (20) is arranged at one end of the knife body (10), and a plurality of spikes (21) which are spirally distributed are arranged on the surface of the cutting part (20); and the suction channel (11) penetrates through the knife body (10) and the cutting part (20) along the length direction of the knife body (10). According to the ultrasonic scalpel head, the spines (21) on the surface of the cutting part (20) vibrate in a high-frequency and small-amplitude mode, so that soft tissue can be broken and cut more quickly, and the operation duration is shortened; and the suction channel (11) is used for collecting and discharging the cut or broken tissues, so that the aim of removing the diseased tissues is fulfilled.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, and particularly relates to an ultrasonic scalpel head and surgical instruments. Background Technology

[0002] With the development of ultrasound technology and its integration with modern medicine, medical ultrasonic aspiration scalpels are gradually being used in surgical procedures, generally to remove tumors or other diseased soft tissues. The high-frequency, low-amplitude vibrations of the ultrasonic scalpel head act on the diseased soft tissue, causing structural damage and achieving a cutting effect. The fragmented soft tissue is then removed through the negative pressure suction channel of the ultrasonic scalpel head, thus achieving the purpose of removing the diseased soft tissue.

[0003] Currently, the tip of the ultrasonic scalpel used in clinical practice is flat, which results in low efficiency or failure to achieve the expected cutting effect when cutting harder or thicker soft tissues, leading to longer surgical time. Utility Model Content

[0004] This application provides an ultrasonic scalpel head, comprising:

[0005] The blade is cylindrical.

[0006] A cutting section is provided at one end of the blade, and the surface of the cutting section is provided with a plurality of spirally distributed protrusions;

[0007] An attraction channel extends through the blade and the cutting section along the length of the blade.

[0008] Furthermore, the blade has a side hole communicating with the suction channel, and the diameter of the side hole is smaller than the diameter of the suction channel.

[0009] Furthermore, the spikes are pyramidal in shape, with the top of the pyramid facing away from the cut.

[0010] Furthermore, the plurality of protrusions are arranged in a double helix pattern on the outer peripheral surface of the cutting surface.

[0011] Furthermore, the side of the cutting portion has at least two openings; a first cutting surface and a second cutting surface are formed on both sides of the openings.

[0012] Furthermore, the outer edge of the first cutting surface is higher than the second cutting surface and higher than the protrusion.

[0013] Furthermore, the opening penetrates the cutting section and extends to the blade.

[0014] Furthermore, multiple grooves are arranged on the end face of the cutting part.

[0015] Furthermore, the ultrasonic scalpel head includes a stalk, one end of which is connected to the blade body, and the other end is provided with a connecting part for connecting an ultrasonic transducer.

[0016] Furthermore, this application also proposes a surgical instrument, including a handle and an ultrasonic scalpel head as described in any of the above-mentioned technical solutions;

[0017] The handle contains an ultrasonic transducer, one end of which is connected to the ultrasonic scalpel head, and the other end is used to connect to the control host.

[0018] The above-mentioned technical solution of this utility model has at least the following beneficial technical effects:

[0019] The ultrasonic scalpel head of this application features multiple spirally distributed protrusions on the cutting surface that vibrate at high frequency and small amplitude, enabling faster fragmentation and cutting of soft tissue and reducing surgical time. The suction channel collects and discharges the cut or fragmented tissue, thereby achieving the purpose of removing diseased tissue. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or in the conventional technology, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional schematic diagram of the ultrasonic scalpel head and scalpel shaft in one embodiment of this application.

[0022] Figure 2 This is a three-dimensional schematic diagram of an ultrasonic scalpel head in one embodiment of this application.

[0023] Figure 3 This is a front view of an ultrasonic scalpel head in one embodiment of this application.

[0024] Figure 4-1 This is a three-dimensional schematic diagram of an ultrasonic scalpel head in one embodiment of this application.

[0025] Figure 4-2 This is a front view of an ultrasonic scalpel head in one embodiment of this application.

[0026] Figure 5-1 This is a three-dimensional schematic diagram of an ultrasonic scalpel head in one embodiment of this application.

[0027] Figure 5-2 This is a front view of an ultrasonic scalpel head in one embodiment of this application.

[0028] Figure 5-3 This is a right view of an ultrasonic scalpel head in one embodiment of this application.

[0029] Figure 6-1 This is a three-dimensional schematic diagram of an ultrasonic scalpel head in one embodiment of this application.

[0030] Figure 6-2 This is a front view of an ultrasonic scalpel head in one embodiment of this application.

[0031] Figure 7 This is a schematic diagram of the connection relationship of surgical instruments in one embodiment of this application.

[0032] in, Figure 1-7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0033] 10. Blade; 11. Suction channel; 12. Side hole; 101. First end; 102. Second end;

[0034] 20. Cutting section; 21. Spike; 22. Groove tooth; 25. Opening; 251. First cutting surface; 252. Second cutting surface;

[0035] 30. Tool holder; 31. Connecting part; 40. Handle; 50. Control host. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details are presented in the various embodiments of this application to facilitate a better understanding of the application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the various embodiments below is for ease of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0037] Currently, the tip of the ultrasonic scalpel used in clinical applications has a flat end face that contacts soft tissue. When cutting harder or thicker soft tissue, this results in low efficiency or failure to achieve the expected cutting effect.

[0038] To address the aforementioned problems, one embodiment of this application provides an ultrasonic scalpel head, such as... Figure 1 , 2 As shown in Figure 3, the ultrasonic scalpel head includes: a blade 10 formed as the body, and a cutting portion 20 disposed at one end of the blade. The blade 10 is cylindrical, and its transverse cross-section can be circular or rectangular with chamfers.

[0039] A cutting section 20 is located at one end (second end 102) of the blade 10. During surgery, the cutting section 20 contacts and removes a portion of the biological tissue. The surface of the cutting section 20 is provided with a plurality of spirally distributed protrusions 21. The other end (first end 101) of the blade 10 is used to connect directly or indirectly to a handle 40 equipped with an ultrasonic transducer. Driven by the ultrasonic transducer, the blade 10 and the cutting section 20 undergo ultrasonic vibration. The high-frequency, small-amplitude vibration of the protrusions 21 on the surface of the cutting section 20 enables faster fragmentation and cutting of soft tissue, thereby reducing surgery time. A suction channel 11 is located inside the blade 10, extending along the length of the blade 10 and through the cutting section 20. During surgery, the suction channel 11 is used to collect and drain the cut or fragmented biological tissue, thereby achieving the purpose of removing diseased tissue.

[0040] In one embodiment, such as Figure 2 and 3 As shown, the blade 10 has a side hole 12 communicating with the suction channel 11. The side hole 12 has a pressure relief function to prevent normal soft tissue from being forcibly sucked into the suction channel 11 when it blocks the end face of the cutting part 20. The diameter of the side hole 12 is smaller than the diameter of the suction channel 11, so that its main suction function can be performed normally when the suction channel 11 is not blocked.

[0041] In one embodiment, such as Figure 2 and 3 As shown, the spike 21 is preferably pyramidal, with the top of the pyramid facing the cutting portion 20 in a radially outward direction; alternatively, the spike 21 can be a square pyramid, a triangular pyramid, or a cone.

[0042] In one embodiment, the ultrasonic vibration of the cutting part is mainly in the following directions: reciprocating linear motion along the length of the blade 10 and reciprocating rotational motion along the outer periphery of the blade 10 (clockwise and counterclockwise rotations alternate periodically); the arrangement shape of the multiple protrusions 21 on the surface of the cutting part 20 is preferably a double helix with alternating directions. The structure of the double helix with alternating directions is adapted to the reciprocating rotational motion, so that the rotational vibration in each direction can cut biological tissue.

[0043] In a preferred embodiment, such as Figure 4-1 and 4-2 As shown, the side of the cutting part 20 has at least two openings 25; preferably, there are four openings 25; a first cutting surface 251 and a second cutting surface 252 are formed on both sides of the openings 25.

[0044] Preferably, such as Figure 5-1 , 5-2As shown in Figure 5-3, the outer edge of the first cut 251 is higher than the second cut surface 252 and higher than the protrusion 21; during surgery, the end face of the cut 20 is suitable for cutting tissue perpendicular to the length direction of the blade 10; the first cut surface 251 and the second cut surface 252 are suitable for cutting biological soft tissue at a position (surface) consistent with the length direction of the blade 10.

[0045] Preferably, the opening 25 extends through the cutting part 20 to the blade 10. The opening 25 has a certain length and, in addition to the cutting function, can also serve as the pressure relief function of the side hole 12 in the previous embodiment.

[0046] In a preferred embodiment, such as Figure 6-1 and 6-2 As shown, the cutting section 20 has multiple grooves 22 arranged along its outer periphery on its end face. Compared with the existing planar end face, the grooves 22 have a more direct cutting effect on tissues with higher toughness or harder structure.

[0047] In one embodiment, the ultrasonic scalpel head further includes a shank 30, one end of which is connected to the blade body 10, and the other end is provided with a connecting part 31 for connecting an ultrasonic transducer; preferably, the shank 30, the blade body 10, and the cutting part 20 of the ultrasonic scalpel head are integrally formed.

[0048] According to another aspect of this application, a surgical instrument is proposed, such as Figure 7 As shown, the device includes a handle 40 and an ultrasonic scalpel head as described in any of the above technical solutions. An ultrasonic transducer is housed within the handle 40, with one end connected to the ultrasonic scalpel head and the other end connected to the control unit 50. Specifically, the ultrasonic transducer is installed within the handle 40, and the scalpel shaft 30 is connected to the handle 40 via a connecting part 31. Furthermore, the ultrasonic scalpel head is also connected to a suction pump via the handle 40, which uses negative pressure to extract fragmented biological tissue from the suction channel 11. The handle 40 is electrically connected to the control unit 50, which controls and displays the operating parameters of the surgical instrument, including the frequency and amplitude of the ultrasonic vibration and the suction force of the suction pump.

[0049] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this application and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this application should be included within the protection scope of this application. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An ultrasonic blade, comprising: The utility model relates to an ultrasonic knife head, which comprises: a knife body (10) in a columnar shape; a cutting part (20) provided at one end of the knife body (10), wherein the surface of the cutting part (20) is provided with a plurality of protrusions (21) distributed in a spiral shape; an attraction channel (11) penetrating through the knife body (10) and the cutting part (20) along the length direction of the knife body (10).

2. The ultrasonic blade of claim 1, wherein, The side surface of the knife body (10) is provided with a side hole (12) in communication with the attraction channel (11), and the diameter of the side hole (12) is smaller than that of the attraction channel (11).

3. The ultrasonic blade of claim 1, wherein, The protrusion (21) is in a pyramid shape, and the top of the pyramid is directed away from the cutting part (20).

4. The ultrasonic blade of claim 1, wherein, The plurality of protrusions (21) are arranged in a double helix shape on the outer circumferential surface of the cutting part (20).

5. The ultrasonic blade of claim 1, wherein, The side surface of the cutting part (20) has at least two openings (25), and first and second cutting surfaces (251 and 252) are formed on the two sides of the opening.

6. The ultrasonic blade of claim 5, wherein, The outer edge of the first cutting surface (251) is higher than the second cutting surface (252) and the protrusion (21).

7. The ultrasonic blade of claim 5, wherein, The opening (25) penetrates through the cutting part and extends to the knife body (10).

8. The ultrasonic blade of claim 1, wherein, A plurality of slot teeth (22) are arranged on the end surface of the cutting part (20).

9. The ultrasonic blade of claim 1, wherein, Further comprising a knife rod (30), one end of the knife rod (30) is connected with the knife body (10), and the other end is provided with a connecting part (31) for connecting an ultrasonic transducer.

10. A surgical cutting tool, characterized by The utility model relates to an ultrasonic knife head, which comprises: The handle (40) is provided with an ultrasonic transducer, one end of which is connected with the ultrasonic knife head, and the other end is used for connecting a control host (50). The handle (40) is provided with an ultrasonic transducer, one end of which is connected with the ultrasonic knife head, and the other end is used for connecting a control host (50).

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