Ultrasonic knife head

Abstract

The utility model discloses an ultrasonic knife head which comprises a shell, an ultrasonic transducer is arranged in the shell, the shell is provided with a liquid injection hole used for injecting a liquid sound conducting medium, and the shell is further provided with a deformation piece used for being concavely arranged towards the inner side of the shell or being convexly arranged towards the outer side of the shell. The ultrasonic scalpel head further comprises a sound transmission piece used for sealing the liquid injection hole. The shell is further provided with an air outlet part. A liquid sound conducting medium can be injected into the shell from the liquid injection hole, the deformation piece can be arranged in a protruding mode towards the outer side of the shell, so that more liquid sound conducting medium can be contained in the shell, after the shell is filled with the liquid sound conducting medium, the deformation piece is arranged in a concave mode towards the inner side of the shell, and the redundant liquid sound conducting medium is extruded out of the shell from the air outlet part. When the ultrasonic scalpel head is used by a user, the liquid sound conducting medium can be filled in the original possible gap, so that the liquid sound conducting medium is completely filled in the shell, and the liquid injection hole is sealed by the sound transmission part, so that the ultrasonic scalpel head can normally work under different operation methods or use scene conditions when the ultrasonic scalpel head is used by the user; and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic scalpels, in particular to an ultrasonic scalpel head. Background Art

[0002] When the internal transducer of a current ultrasonic scalpel (such as a household ultrasonic scalpel) is working, a liquid sound-conducting medium (such as a mixed liquid such as deoxygenated water) needs to be filled into the internal cavity of the ultrasonic scalpel head so that the transducer can work normally and emit ultrasonic energy waves.

[0003] However, most ultrasonic scalpel heads currently on the market are not completely filled with liquid sound-conducting medium, that is, there are gaps. When users operate the machine or when operating on certain special parts of the face, there is an air gap in front of the transducer because the cavity of the ultrasonic scalpel head is not completely filled with liquid sound-conducting medium. As a result, the machine cannot function normally when operating and there is a risk of functional failure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an improved ultrasonic knife head.

[0005] The technical solution adopted by the utility model to solve its technical problems is: constructing an ultrasonic knife head, including a shell, an ultrasonic transducer is arranged in the shell, the shell is provided with an injection hole for injecting liquid sound-conducting medium, the shell is also provided with a deformation member for being concavely arranged toward the inner side of the shell or convexly arranged toward the outer side of the shell; the ultrasonic knife head also includes a sound-transmitting member for sealing the injection hole; the shell is also provided with an air outlet.

[0006] In some embodiments, a mounting hole is provided on the housing, and the periphery of the deformable member is sealed and mounted on the periphery of the mounting hole.

[0007] In some embodiments, the inner side wall of the mounting hole is provided with a step portion;

[0008] The deformable member comprises an annular portion and a deformable portion formed by extending the inner circumference of the annular portion; the annular portion is sealingly mounted on the step portion.

[0009] In some embodiments, a pressing portion is provided on the outer side of the deformation portion.

[0010] In some embodiments, the deformable member is a silicone member.

[0011] In some embodiments, the housing is provided with an adjustment mechanism connected to the ultrasonic transducer to adjust the position of the ultrasonic transducer;

[0012] The adjustment mechanism comprises at least two mounting plates and at least two guide rods; the at least two mounting plates are arranged opposite to each other at intervals, the at least two guide rods are arranged relatively parallel to each other, and the two ends of the at least two guide rods are respectively connected to the at least two mounting plates;

[0013] The ultrasonic transducer comprises a mounting frame and an ultrasonic transducer body arranged in the mounting frame; the mounting frame is provided with a plurality of sliding parts, and the plurality of sliding parts are slidably mounted on at least two guide rods;

[0014] A sealed passage is provided between the mounting frame and the housing for installing a driving part of a driving member therein to drive the mounting frame to move.

[0015] In some embodiments, the housing is provided with a through hole; the mounting frame is provided with a connecting portion;

[0016] The adjustment mechanism further comprises a sealing telescopic tube, two ends of which are respectively connected to the connecting portion and the through hole; an inner cavity of the sealing telescopic tube is communicated with the through hole to form the sealing channel.

[0017] In some embodiments, the connecting portion is provided with a fixing hole, and the fixing hole is arranged opposite to the through hole;

[0018] The adjustment mechanism further includes a first fastener, a second fastener, and a sealing sleeve; the first end wall and the second end wall of the sealed telescopic tube are respectively provided with a first through cavity and a second through cavity, and the first through cavity and the second through cavity are both connected to the inner cavity of the sealed telescopic tube;

[0019] The first fastener comprises an annular limiting portion, a threaded portion extends around the inner cavity of the limiting portion, and the outer diameter of the limiting portion is greater than the aperture of the through hole;

[0020] The limiting portion is located in the inner cavity of the sealed telescopic tube, and the threaded portion is penetrated through the first through cavity and the through hole to fix the first end wall; the sealing sleeve is located in the inner cavity of the sealed telescopic tube, and the second fastener is penetrated through the fixing hole and the second through cavity and connected to the sealing sleeve to fix the second end wall.

[0021] In some embodiments, a sleeve is provided between the inner cavity of the fixing hole and a portion of the outer periphery of the second fastener.

[0022] In some embodiments, the sound-permeable member includes a waterproof sound-permeable membrane.

[0023] The implementation of the utility model has the following beneficial effects: the ultrasonic knife head includes a shell, an ultrasonic transducer is arranged in the shell, an injection hole for injecting liquid sound-conducting medium is arranged on the shell, and a deformable member is arranged on the shell for being recessed inside the shell or convex outside the shell; the ultrasonic knife head also includes a sound-permeable member for sealing the injection hole; and the shell is also provided with an air outlet. Among them, liquid sound-conducting medium (such as a mixed liquid such as deoxygenated water) can be injected into the shell from the injection hole. At this time, the deformable member can be convex outside the shell, so that the shell can accommodate more liquid sound-conducting medium. After the shell is filled with liquid sound-conducting medium, the deformable member is recessed inside the shell, and the excess liquid sound-conducting medium is squeezed out of the shell from the air outlet. During the extrusion process, the liquid sound-conducting medium will be filled into the gap that may have existed originally, so that the liquid sound-conducting medium is completely filled in the shell. After that, the injection hole can be sealed with a sound-permeable member. Of course, the sound-permeable member can also be sealed before squeezing out the excess liquid sound-conducting medium, and the air outlet can be sealed with a sealant. This enables the ultrasonic knife head to work normally under different operating techniques or usage scenarios when used by the user, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0025] Figure 1 It is a schematic structural diagram of an ultrasonic knife head (deformable member in a convex state) in some embodiments of the utility model;

[0026] Figure 2 It is a schematic structural diagram of an ultrasonic knife head (deformable member in a concave state) in some embodiments of the utility model;

[0027] Figure 3 yes Figure 2 A cross-sectional view of

[0028] Figure 4 It is a schematic structural diagram of the ultrasonic scalpel head in some embodiments of the utility model from one perspective;

[0029] Figure 5 yes Figure 4 Exploded diagram of some structures;

[0030] Figure 6 It is a schematic diagram of the structure of the deformable member and the shell in some embodiments of the utility model;

[0031] Figure 7It is a schematic diagram of the structure of the deformable member in some embodiments of the utility model;

[0032] Figure 8 is a cross-sectional view of a housing in some embodiments of the utility model;

[0033] Fig. 9 It is one of the structural schematic diagrams of the adjustment mechanism and the ultrasonic transducer in some embodiments of the utility model;

[0034] Fig.10 yes Fig. 9 Exploded diagram of

[0035] Fig.11 This is the second structural schematic diagram of the adjustment mechanism and the ultrasonic transducer in some embodiments of the utility model;

[0036] Fig.12 yes Fig.11 Exploded diagram of . DETAILED DESCRIPTION

[0037] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0038] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0039] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0040] See also Figures 1 to 8 The utility model shows an ultrasonic scalpel head, including a shell 10, an ultrasonic transducer 20 is arranged in the shell 10, an injection hole 1111 for injecting a liquid sound-conducting medium is arranged on the shell 10, and a deformable member 30 is arranged on the shell 10 for being concavely arranged inside the shell 10 or convexly arranged outside the shell 10; the ultrasonic scalpel head also includes a seal for sealing the injection hole 1111 (see Figure 7 ) has a sound-permeable member 40, and the housing 10 is also provided with an air outlet portion 60.

[0041] The ultrasonic scalpel head is used as follows: inject liquid sound-conducting medium (such as mixed liquid such as deoxygenated water) into the shell 10 from the injection hole 1111. At this time, the deformable member 30 can be convex to the outside of the shell 10, so that the shell 10 can accommodate more liquid sound-conducting medium. After the shell 10 is filled with liquid sound-conducting medium, the deformable member 30 is concave to the inside of the shell 10, and the excess liquid sound-conducting medium is squeezed out of the shell 10 from the air outlet 60. During the extrusion process, the liquid sound-conducting medium will be filled into the gap that may have existed originally, so that the liquid sound-conducting medium is completely filled in the shell 10. After that, the injection hole 1111 can be sealed with the sound-permeable member 40. Of course, the sound-permeable member 40 can also be sealed before squeezing out the excess liquid sound-conducting medium, and the air outlet 60 can be sealed with a sealant or a sealing plug. This allows the ultrasonic scalpel head to work normally under different operating methods or usage scenarios when used by the user; and improves the user experience.

[0042] See also Figure 6 and Figure 7As shown, in some embodiments, the housing 10 is provided with a mounting hole 121, and the periphery of the deformable member 30 is sealed and installed on the periphery of the mounting hole 121. Further, the inner side wall of the mounting hole 121 is provided with a step portion 122, and the deformable member 30 may include an annular portion 31 and a deformable portion 32 formed by extending the inner periphery of the annular portion 31; the annular portion 31 is sealed and installed on the step portion 122, for example, by hot-melt sealing installation, and the hot-melt method includes but is not limited to laser hot-melt, and of course, it can also be fixed by glue. The shape of the deformable portion 32 in the convex or concave state can be roughly hemispherical, and of course, the deformable portion 32 can also be other curved surface structures, as long as the inner and outer sides can be deformed.

[0043] In some embodiments, a pressing portion is provided on the outer side of the deformation portion 32, and the pressing portion may be a roughly columnar structure, and the pressing portion has two functions: one is to allow the staff to operate and lift it outward so that the deformation portion bulges outward, and the other is to allow the staff to press so that the deformation portion bulges toward the inner side of the housing 10. Of course, the pressing portion may not be provided.

[0044] In some embodiments, the deformable member 30 is a silicone member. It can be understood that the deformable member 30 is made of silicone material, which has certain elasticity and rigidity, and can maintain a certain shape unchanged, or can be deformed under the drive of external force.

[0045] See also Figures 5 to 8 In some embodiments, the housing 10 may include a shell 11, a cover 12 and a sealing cover 14. The shell 11 may include a bottom wall 111 and a surrounding wall 112 formed by extending from the periphery of the bottom wall 111. The bottom wall 111 is formed with a liquid injection hole 1111. The liquid injection hole 1111 may be roughly elliptical or circular. The periphery of the liquid injection hole 1111 extends downward to form a liquid injection portion. The sound-permeable member 40 may be roughly cylindrical, which is sleeved on the liquid injection portion and seals the liquid injection hole 1111. The sealing cover 14 is sleeved on the sound-permeable member 40, and a through hole is provided on the sealing cover 14 so that part of the sound-permeable member 40 is exposed therein. Preferably, a silicone seal 15 may be provided between the sealing cover 14 and the sound-permeable member 40. Of course, the sound-permeable member 40 may also directly seal the liquid injection hole 1111, which may be fixed by hot melt or glue. Preferably, the sound-permeable member 40 may include a waterproof sound-permeable membrane.

[0046] like Figure 8 As shown, the cover 12 can be covered on the opening side of the housing 11, and the air outlet 60 can be provided on the cover 12, which can be a hole structure or an air guide cylinder structure. When the air outlet 60 adopts an air guide cylinder structure, it can protrude from the surface of the cover 12, and is roughly in the shape of a truncated cone, and is provided with an air outlet channel, which can be roughly in the shape of a trumpet, such as Figure 3 shown.

[0047] The upper side edge of the housing 11 may be provided with a sealing groove 116, and a silicone ring 13 may be provided in the sealing groove 116 (see Figure 3 ) to improve the sealing of the connection between the cover body 12 and the shell 11. The cover body 12 and the shell 11 can be fixed by a threaded connection or a snap connection. The cover body 12 may be provided with the above-mentioned mounting hole 121. It can be understood that the injection hole 1111 and the mounting hole 121 can be formed on opposite sides of the shell 10. In this way, during the injection process, the injection hole 1111 can be set upward, the deformable member 30 can be set in a direction, and the deformable member 30 protrudes toward the outside of the shell 10. After the injection is completed, the staff can press the deformable member 30 to remove the excess liquid sound-conducting medium, so that there is no gap in the inner cavity of the shell 10. Of course, in other embodiments, the mounting hole 121 can also be set on the surrounding wall 112.

[0048] See again Figure 3 , Figure 4 , Figures 9 to 12 The housing 10 is provided with an adjusting mechanism 50 connected to the ultrasonic transducer 20 for adjusting the position of the ultrasonic transducer 20 , and the exciting end of the ultrasonic transducer 20 is arranged opposite to the sound-transmitting member 40 .

[0049] Furthermore, the adjustment mechanism 50 may include at least two mounting plates 51 and at least two guide rods 52; the at least two mounting plates 51 are arranged opposite to each other at intervals, the at least two guide rods 52 are arranged relatively parallel to each other, and the two ends of the at least two guide rods 52 are respectively connected to the at least two mounting plates 51. Figure 8 As shown, a slot portion 114 may be provided in the housing 10 for the mounting plate 51 to be inserted therein. Furthermore, a buckle groove 115 may be provided on the slot portion 114 , and a buckle portion 511 may be provided on the mounting plate 51 so that the mounting plate 51 is buckled and connected to the slot portion 114 .

[0050] The ultrasonic transducer 20 may include a mounting frame 21 and an ultrasonic transducer body 22 disposed in the mounting frame 21 ; the mounting frame 21 is provided with a plurality of sliding parts 2123 , and the plurality of sliding parts 2123 are slidably mounted on at least two guide rods 52 .

[0051] A sealed passage A is provided between the mounting frame 21 and the housing 10 for installing a driving part of a driving member therein to drive the mounting frame 21 to move.

[0052] The driving member may be at least one of a hydraulic cylinder, a pneumatic cylinder or a driving motor. (1) When the driving member is a driving motor, the output shaft of the driving motor can extend into the sealed channel A to connect with a portion of the mounting frame 21, and the driving motor can drive the mounting frame 21 to move forward and backward in the horizontal direction to adjust the position of the ultrasonic transducer 20. (2) When the driving member is a hydraulic cylinder, the telescopic rod (piston rod) of the hydraulic cylinder can extend into the sealed channel A to connect with a portion of the mounting frame 21, and the telescopic rod of the hydraulic cylinder can extend and retract to drive the mounting frame 21 to move forward and backward in the horizontal direction to adjust the position of the ultrasonic transducer 20. (3) When the driving member is a pneumatic cylinder, the telescopic rod (piston rod) of the pneumatic cylinder can extend into the sealed channel A to connect with a portion of the mounting frame 21, and the telescopic rod of the pneumatic cylinder can extend and retract to drive the mounting frame 21 to move forward and backward in the horizontal direction to adjust the position of the ultrasonic transducer 20.

[0053] Furthermore, the outer shell 10 is provided with a through hole 113, and the through hole 113 can be formed on the surrounding wall 112; the mounting frame 21 is provided with a connecting portion 2124, and the adjustment mechanism 50 also includes a sealing telescopic tube 53, and the two ends of the sealing telescopic tube 53 are respectively connected to the connecting portion 2124 and the through hole 113; the inner cavity of the sealing telescopic tube 53 is connected to the through hole 113 to form a sealing channel A.

[0054] Furthermore, the connecting portion 2124 is provided with a fixing hole 2125, and the fixing hole 2125 is arranged opposite to the through hole 113; the adjusting mechanism 50 also includes a first fastener 54, a second fastener 55, and a sealing sleeve 56; the first end wall and the second end wall of the sealing telescopic tube 53 are respectively provided with a first through cavity 531 and a second through cavity 532, and the first through cavity 531 and the second through cavity 532 are both connected to the inner cavity of the sealing telescopic tube 53. The first fastener 54 includes an annular limiting portion 541, and a threaded portion 542 extends around the inner cavity of the limiting portion 541, and the outer diameter of the limiting portion 541 is larger than the aperture of the through hole 113. The limiting portion 541 is located in the inner cavity of the sealed telescopic tube 53, and the threaded portion 542 is penetrated through the first through cavity 531 and the through hole 113 to fix the first end wall. Preferably, the portion of the threaded portion 542 protruding from the through hole 113 can be locked and fixed by a nut 58; the sealing sleeve 56 is located in the inner cavity of the sealed telescopic tube 53, and the second fastener 55 penetrates the fixing hole 2125 and the second through cavity 532, and is connected to the sealing sleeve 56 to fix the second end wall, thereby fixing the sealed telescopic tube 53.

[0055] Preferably, the sealing sleeve 56 may be substantially columnar, and a first connection groove and a second connection groove may be provided at both ends of the sealing sleeve 56 in the circumferential direction, wherein the first connection groove may be used to connect with the second fastener 55, and the second connection groove may be used to connect with the driving part of the driving member. In other embodiments, a magnetic attraction member (such as a nepheline magnet) may be provided in the second connection groove to be magnetically connected with the driving part of the driving member.

[0056] Furthermore, a sleeve 57 is provided between the inner cavity of the fixing hole 2125 and a portion of the outer periphery of the second fastener 55 .

[0057] Of course, in other embodiments, one end of the sealed telescopic tube 53 can be sealed and fixed to the connecting portion 2124, and the other end can be sealed and fixed to the inner wall of the housing 10, and the inner cavity of the sealed telescopic tube 53 is connected to the through hole 113.

[0058] In some embodiments, the mounting frame 21 may include a lower bracket 211 and an upper bracket 212 that are detachably connected, and the lower bracket 211 and the upper bracket 212 are both cylindrical structures, and the ultrasonic transducer body 22 can be installed in the lower bracket 211. Further, the lower bracket 211 and the upper bracket 212 can be fixed by snap connection, for example, the lower bracket 211 can be provided with a snap groove 2111, and the upper bracket 212 can be provided with an elastic snap 2121, and the two are snap-connected. The side wall of the upper bracket 212 can also be provided with a threading hole 2122, and the threading hole 2122 is for the wiring harness of the ultrasonic transducer body 22 to pass through. The housing 10 can also be provided with a perforation for the wiring harness to pass through, and the perforation can be sealed by sealing glue. The upper bracket 212 can be provided with the aforementioned sliding portion 2123 and connecting portion 2124.

[0059] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An ultrasonic scalpel head, comprising a housing (10), wherein an ultrasonic transducer (20) is arranged in the housing (10), characterized in that: The outer shell (10) is provided with an injection hole (1111) for injecting a liquid sound-conducting medium, and the outer shell (10) is also provided with a deformable member (30) for being recessed toward the inner side of the outer shell (10) or convex toward the outer side of the outer shell (10); the ultrasonic knife head also includes a sound-transmitting member (40) for sealing the injection hole (1111); and the outer shell (10) is also provided with an air outlet (60).

2. The ultrasonic scalpel head according to claim 1, characterized in that: The housing (10) is provided with a mounting hole (121), and the periphery of the deformable member (30) is sealingly mounted on the periphery of the mounting hole (121).

3. The ultrasonic scalpel head according to claim 2, characterized in that: The inner side wall of the mounting hole (121) is provided with a step portion (122); The deformable member (30) comprises an annular portion (31) and a deformable portion (32) formed by extending the inner circumference of the annular portion (31); the annular portion (31) is sealingly mounted on the step portion (122).

4. The ultrasonic scalpel head according to claim 3, characterized in that: A pressing portion is provided on the outer side of the deformation portion (32).

5. The ultrasonic scalpel head according to any one of claims 1 to 4, characterized in that: The deformable member (30) is a silicone member.

6. The ultrasonic scalpel head according to claim 1, characterized in that: An adjusting mechanism (50) connected to the ultrasonic transducer (20) for adjusting the position of the ultrasonic transducer (20) is provided in the housing (10); The adjustment mechanism (50) comprises at least two mounting plates (51) and at least two guide rods (52); the at least two mounting plates (51) are arranged opposite to each other at intervals, the at least two guide rods (52) are arranged parallel to each other, and the two ends of the at least two guide rods (52) are respectively connected to the at least two mounting plates (51); The ultrasonic transducer (20) comprises a mounting frame (21) and an ultrasonic transducer body (22) arranged in the mounting frame (21); a plurality of sliding parts (2123) are arranged on the mounting frame (21), and the plurality of sliding parts (2123) are slidably mounted on at least two guide rods (52); A sealed channel (A) is provided between the mounting frame (21) and the housing (10) for mounting a driving part of a driving member therein to drive the mounting frame (21) to move.

7. The ultrasonic scalpel head according to claim 6, characterized in that: The housing (10) is provided with a through hole (113); the mounting frame (21) is provided with a connecting portion (2124); The adjustment mechanism (50) further comprises a sealed telescopic tube (53), the two ends of which are respectively connected to the connecting portion (2124) and the through hole (113); the inner cavity of the sealed telescopic tube (53) is in communication with the through hole (113) to form the sealed channel (A).

8. The ultrasonic scalpel head according to claim 7, characterized in that: The connecting portion (2124) is provided with a fixing hole (2125), and the fixing hole (2125) is arranged opposite to the through hole (113); The adjustment mechanism (50) further comprises a first fastener (54), a second fastener (55), and a sealing sleeve (56); the first axial end wall and the second axial end wall of the sealing telescopic tube (53) are respectively provided with a first through cavity (531) and a second through cavity (532); the first through cavity (531) and the second through cavity (532) are both in communication with the inner cavity of the sealing telescopic tube (53); The first fastener (54) comprises an annular limiting portion (541), a threaded portion (542) extending around the inner cavity of the limiting portion (541), and an outer diameter of the limiting portion (541) being larger than the aperture of the through hole (113); The limiting portion (541) is located in the inner cavity of the sealing telescopic tube (53), and the threaded portion (542) is penetrated through the first through cavity (531) and the through hole (113) to fix the first end wall; the sealing sleeve (56) is located in the inner cavity of the sealing telescopic tube (53), and the second fastener (55) is penetrated through the fixing hole (2125) and the second through cavity (532), and is connected to the sealing sleeve (56) to fix the second end wall.

9. The ultrasonic scalpel head according to claim 8, characterized in that: A sleeve (57) is provided between the inner cavity of the fixing hole (2125) and a portion of the outer periphery of the second fastener (55).

10. The ultrasonic scalpel head according to claim 1, characterized in that: The sound-permeable member (40) comprises a waterproof sound-permeable membrane.

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