Toothed ultrasonic scalpel head and surgical scalpel
By designing a toothed ultrasonic scalpel head, combined with a toothed structure and suction channel, the problem of low efficiency of existing ultrasonic scalpel heads when cutting hardened or calcified tissues is solved, achieving efficient cutting and tissue removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SHUIMU TIANPENG MEDICAL EQUIP CO LTD
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-17
AI Technical Summary
Existing ultrasonic scalpels are inefficient when cutting hardened or calcified soft tissues, and prolonged vibration can affect normal tissues.
Design a toothed ultrasonic scalpel head with multiple grooves on the end face and an internal suction channel. It removes and cuts tissue by negative pressure suction and cuts hardened or calcified tissue by high-frequency vibration driven by an ultrasonic transducer.
It improves the cutting efficiency of hardened or calcified tissues, reduces the impact on normal tissues, and effectively removes the cut-off lesion tissue.
Smart Images
Figure CN224126024U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of surgical instruments, and particularly relates to a toothed ultrasonic scalpel head and surgical instrument. Background Technology
[0002] With the development of ultrasound technology and its integration with modern medicine, medical ultrasonic aspiration scalpels are increasingly being used in surgical procedures, generally to remove tumors or other diseased tissues. The high-frequency, low-amplitude vibrations of the ultrasonic scalpel tip act on the diseased soft tissue, causing structural damage and thus achieving a cutting effect.
[0003] The tip of the ultrasonic scalpel currently used in clinical practice is a flat surface that contacts soft tissue. This results in low efficiency in hardened, calcified, or highly resilient soft tissues, and prolonged ultrasonic vibration can have a significant impact on normal tissues. Utility Model Content
[0004] This application provides a toothed ultrasonic scalpel tip, comprising:
[0005] The blade is cylindrical.
[0006] The second end of the blade is provided with a cutting section, which is used to cut biological soft tissue; the end face of the cutting section is provided with multiple grooves.
[0007] The blade body has an attraction channel that runs through the blade body and the cutting section along its length.
[0008] The blade has a side hole on the side near the second end that communicates with the suction channel, and the diameter of the side hole is smaller than the diameter of the suction channel.
[0009] Furthermore, the cross-section of the main body of the cutting section is annular.
[0010] Furthermore, the groove teeth are triangular.
[0011] Furthermore, the tooth tip of the grooved tooth is a plane or a smooth curved surface, and the groove of the grooved tooth is U-shaped.
[0012] Furthermore, the opening of the groove of the groove tooth gradually increases from the outside to the inside along the radial direction of the cutting part.
[0013] Furthermore, the width of the teeth of the groove gradually increases from the outside to the inside along the radial direction of the cutting portion;
[0014] The tooth tip plane forms a first cutting surface, the outer peripheral surface of the tooth forms a second cutting surface, and the two sides of the tooth form a third and a fourth cutting surface.
[0015] Furthermore, the number of grooves is at least six, and the included angle between the third and fourth cutting surfaces is 110°-120°.
[0016] Furthermore, the toothed ultrasonic scalpel head also includes a shank, one end of which is connected to the scalpel body (10), and the other end is provided with a connecting part, which is used to connect to the ultrasonic transducer.
[0017] Furthermore, this application also proposes a surgical instrument, including a handle and a toothed ultrasonic scalpel head as described in any of the above-mentioned technical solutions;
[0018] The handle contains an ultrasonic transducer, one end of which is connected to the toothed ultrasonic scalpel head, and the other end is used to connect to the control host.
[0019] The above-mentioned technical solution of this utility model has at least the following beneficial technical effects:
[0020] The cutting end face of the toothed ultrasonic scalpel head in this application has grooves that can cut hardened, calcified, or highly resilient soft tissues; the suction channel is used to connect to a suction pump, and the broken soft tissues are removed by negative pressure suction, thereby achieving the purpose of removing the cut-off lesion tissues. Attached Figure Description
[0021] 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.
[0022] Figure 1 This is a three-dimensional schematic diagram of a toothed ultrasonic scalpel head and shank in one embodiment of this application.
[0023] Figure 2 This is a three-dimensional schematic diagram of a toothed ultrasonic scalpel head in one embodiment of this application.
[0024] Figure 3 This is a front view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0025] Figure 4-1 This is a three-dimensional schematic diagram of a toothed ultrasonic scalpel head in one embodiment of this application.
[0026] Figure 4-2 This is a front view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0027] Figure 4-3 This is a right view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0028] Figure 5-1This is a three-dimensional schematic diagram of a toothed ultrasonic scalpel head in one embodiment of this application.
[0029] Figure 5-2 This is a front view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0030] Figure 5-3 This is a right view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0031] Figure 6-1 This is a three-dimensional schematic diagram of a toothed ultrasonic scalpel head in one embodiment of this application.
[0032] Figure 6-2 This is a front view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0033] Figure 6-3 This is a right view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0034] Figure 7-1 This is a three-dimensional schematic diagram of a toothed ultrasonic scalpel head in one embodiment of this application.
[0035] Figure 7-2 This is a front view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0036] Figure 7-2 (A) is a partial enlarged view of the groove teeth of a toothed ultrasonic scalpel head in one embodiment of this application.
[0037] Figure 7-3 This is a right view of a toothed ultrasonic scalpel head in one embodiment of this application.
[0038] Figure 8 This is a schematic diagram of the connection relationship of surgical instruments in one embodiment of this application.
[0039] in, Figure 1-8 The correspondence between the reference numerals and component names in the attached drawings is as follows:
[0040] 10. Blade; 11. Suction channel; 12. Side hole; 101. First end; 102. Second end;
[0041] 20. Cutting section; 21. Groove tooth; 211. First cutting surface; 212. Second cutting surface; 213. Third cutting surface; 214. Fourth cutting surface;
[0042] 30. Tool holder; 31. Connecting part; 40. Handle; 50. Control unit. Detailed Implementation
[0043] 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.
[0044] Currently, the tip of the ultrasonic scalpel used in clinical applications has a flat end face that contacts soft tissue. This results in low efficiency when cutting harder bone tissue or more resilient soft tissue, and the ultrasonic vibration caused by prolonged use can have a significant impact on normal tissue.
[0045] To address the aforementioned problems, one embodiment of this application discloses a toothed ultrasonic scalpel head. The toothed ultrasonic scalpel head is connected to a handle 40, which contains an ultrasonic transducer. The ultrasonic transducer converts electrical energy into mechanical energy to drive the toothed ultrasonic scalpel head to perform high-frequency, small-amplitude vibrations to cut biological tissue. Figure 1 , Figure 2 and Figure 3 As shown, the toothed ultrasonic scalpel head in this embodiment specifically includes:
[0046] The blade 10 has a columnar shape; its first end 101 is used to directly or indirectly connect to an ultrasonic transducer, and its second end 102 is provided with a cutting section 20, the end face of which has multiple grooves 21. Optionally, to ensure the strength of the blade 10, given that the size of the cutting section 20 is determined according to the cutting scenario, the diameter of the first end 101 of the blade 10 is larger than the diameter of the second end 102. The grooves 21 on the end face of the cutting section 20 are capable of cutting hardened, calcified, or highly resilient soft tissues.
[0047] The blade 10 and the cutting section 20 are provided with a suction channel 11, which runs through the blade 10 and the cutting section 20 along the length of the blade 10. The suction channel 11 is used to connect to a suction pump. Through negative pressure suction, the suction channel 11 removes the broken soft tissue, thereby achieving the purpose of removing the cut-off diseased tissue.
[0048] The blade 10 has a side hole 12 near the second end 102, which communicates with the suction channel 11. The diameter of the side hole 12 is smaller than the diameter of the suction channel 11. Preferably, there are two side holes 12, which are symmetrically arranged on both sides of the blade 10 along the radial direction. The side holes 12 have a pressure relief function, preventing normal soft tissue from being forcibly sucked into the suction channel 11 if it blocks the end face of the cutting section 20. The smaller diameter of the side hole 12 compared to the suction channel 11 allows its main suction function to operate normally when the suction channel 11 is not blocked.
[0049] During surgery, different toothed ultrasonic scalpel tips can be used depending on the tissue structure to be cut. The shapes of the toothed ultrasonic scalpel tips in this application mainly include the following:
[0050] Preferably, the cross-section of the main body of the cutting part 20 is annular.
[0051] In one embodiment, such as Figure 4-1 , Figure 4-2 and Figure 4-3 As shown, the groove 21 is triangular. The apex of the triangle still has a small cutting plane; the toothed ultrasonic scalpel with triangular groove 21 is mainly used to cut hardened soft tissue and ensure that the cut surface of normal tissue is intact.
[0052] In one embodiment, such as Figure 5-1 , Figure 5-2 and Figure 5-3 As shown, the tooth tip of the groove tooth 21 is a flat or smooth curved surface, and the groove of the groove tooth 21 is U-shaped. The flatness of the tooth tip can well ensure the flatness of the tissue cutting surface, and the user can easily control the advancing force and speed. It is mainly used for cutting soft tissues with high toughness, such as tendons and cartilage.
[0053] In one embodiment, such as Figure 6-1 , Figure 6-2 and Figure 6-3 As shown, the opening of the groove of the tooth 21 gradually increases from the outside to the inside along the radial direction of the cutting part 20. Two cutting surfaces are formed on both sides of the opening, and the angle between each cutting surface and the outer peripheral surface (cut surface) is less than 60°, preferably 40°, so that the cutting surface has a high efficiency of advancing and cutting when cutting soft tissue.
[0054] In one embodiment, such as Figure 7-1 , Figure 7-2 and Figure 7-3 As shown, the width of the teeth of the groove 21 gradually increases from the outside to the inside along the radial direction of the cutting portion 20; as Figure 7-2 As shown in (A), the tooth tip plane is formed as a first cutting surface 211, the outer peripheral surface of the tooth is formed as a second cutting surface 212, and the two sides of the tooth are formed as a third cutting surface 213 and a fourth cutting surface 214.
[0055] Preferably, there are at least six teeth 21, and the included angle between the third cutting surface 213 and the fourth cutting surface 214 is 110°-120°. This toothed ultrasonic scalpel head is mainly used for cutting ordinary soft tissues, such as muscles and skin. The third cutting surface 213 and the fourth cutting surface 214, which are at an obtuse angle to each other, can guide the cut tissue into the suction channel 11, and the third cutting surface 213 and the fourth cutting surface 214 have a certain squeezing effect when they vibrate obliquely relative to each other, which is more conducive to hemostasis.
[0056] In one embodiment, the toothed 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, blade body 10 and cutting part 20 of the toothed ultrasonic scalpel head are integrally formed.
[0057] Furthermore, this application also proposes a surgical instrument, such as Figure 8 As shown, the device includes a handle 40 and a toothed 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 toothed 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 toothed 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.
[0058] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, 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.
[0059] 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. A toothed ultrasonic blade, comprising: include: The blade (10) is cylindrical; The second end (102) of the blade (10) is provided with a cutting section (20), which is used to cut biological soft tissue; The end face of the cutting part (20) is provided with a plurality of grooves (21). The blade (10) has an attraction channel (11) that runs through the blade (10) and the cutting part (20) along its length. The blade (10) has a side hole (12) on the side near the second end (102) that communicates with the suction channel (11). The diameter of the side hole (12) is smaller than the diameter of the suction channel (11). The tooth tip of the groove tooth (21) is a plane or a smooth curved surface.
2. The toothed ultrasonic blade of claim 1, wherein, The cross-section of the main body of the cutting section (20) is circular.
3. The toothed ultrasonic blade of claim 2, wherein, The groove tooth (21) is triangular.
4. The toothed ultrasonic blade of claim 2, wherein, The tooth tip of the groove tooth (21) is a plane or a smooth curved surface, and the groove of the groove tooth (21) is U-shaped.
5. The toothed ultrasonic blade of claim 2, wherein, The groove opening of the groove tooth (21) gradually increases from the outside to the inside along the radial direction of the cutting part (20).
6. The toothed ultrasonic blade of claim 2, wherein, The width of the teeth of the groove (21) gradually increases from the outside to the inside along the radial direction of the cutting part (20); The tooth tip plane is formed as a first cutting surface (211), the outer peripheral surface of the tooth is formed as a second cutting surface (212), and the two sides of the tooth are formed as a third cutting surface (213) and a fourth cutting surface (214).
7. The serrated ultrasonic blade of claim 6, wherein, The groove teeth (21) are at least six, and the included angle between the third cutting surface (213) and the fourth cutting surface (214) is 110°-120°.
8. The toothed ultrasonic scalpel head according to claim 1, characterized in that, It also includes a blade holder (30), one end of which is connected to the blade body (10), and the other end is provided with a connecting part (31), which is used to connect an ultrasonic transducer.
9. A surgical cutting tool, characterized by Includes a handle (40) and a toothed ultrasonic scalpel head as described in any one of claims 1-8; The handle (40) is equipped with an ultrasonic transducer, one end of which is connected to the toothed ultrasonic scalpel head, and the other end is used to connect to the control host (50).