CN216724678U - Ultrasonic surgical instrument with detachable clamping pad - Google Patents

Abstract

The utility model belongs to the technical field of ultrasonic surgical instruments and discloses an ultrasonic surgical instrument with a detachable clamping pad, which comprises a clamping arm, wherein the clamping arm comprises a metal clamp, a clamping pad and a limiting structure, the clamping pad is detachably connected with the metal clamp, the clamping pad is provided with a connecting bulge or a connecting groove, the metal clamp is provided with a clamping groove or a clamping bulge, the connecting bulge can be clamped with the clamping groove, or the connecting groove can be clamped with the clamping bulge; the limiting structure comprises a first limiting structure and a second limiting structure, the first limiting structure is arranged on the metal clamp, the second limiting structure is arranged on the clamping pad, and the first limiting structure and the second limiting structure are matched with each other to limit the clamping pad to move along the length direction of the metal clamp or move along the thickness direction of the metal clamp. The ultrasonic surgical instrument with the detachable clamping pad of the utility model has the advantages that the clamping pad is convenient to disassemble and assemble, the use times of the instrument are greatly increased, and the service life of the instrument is greatly prolonged; the clamping pad can be limited, and can not shift in the using process, so that the cutting capacity and the closing effect of the instrument are prevented from being influenced.

Description

Ultrasonic surgical instrument with detachable clamping pad

Technical Field

The utility model relates to an ultrasonic surgical instrument technical field especially relates to a centre gripping fills up detachable ultrasonic surgical instrument.

Background

Ultrasonic cutting hemostats are common ultrasonic surgical instruments that utilize ultrasonic energy to cut and seal body tissue. The ultrasonic cutting hemostatic knife is provided with an ultrasonic knife rod and a clamping arm, the ultrasonic knife rod and the clamping arm clamp human tissues together, and the ultrasonic energy is utilized to cut the tissues and stop bleeding and seal. The clamping arm is provided with a clamping pad on one surface contacting human tissues, the clamping pad is usually made of plastic materials, the clamping pad can be slowly worn due to high temperature and high frequency friction in the using process, the cutting and sealing effects of the ultrasonic surgical instrument can be influenced after the clamping pad is worn, and if the clamping pad can not be repeatedly removed and installed, the using times and the service life of the ultrasonic surgical instrument are greatly reduced; moreover, if the removably mounted clamp pad is not well defined, it may shift during use, thereby affecting the cutting ability and closure of the ultrasonic surgical instrument.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ultrasonic surgical instrument with a detachable clamping pad, wherein the clamping pad is detachably arranged on a metal clamp, so that the clamping pad is convenient to disassemble and assemble, and the use times and the service life of the ultrasonic surgical instrument are greatly improved; the clamping pad does not shift during use, avoiding affecting the cutting ability and closing effect of the ultrasonic surgical instrument.

To achieve the purpose, the utility model adopts the following technical proposal:

an ultrasonic surgical instrument is provided with a detachable clamping pad, comprising:

the clamping arm comprises a metal clamp, a clamping pad and a limiting structure, the clamping pad is detachably connected to the metal clamp, a clamping surface of the clamping pad can abut against the ultrasonic cutter bar, the clamping pad is provided with a connecting bulge or a connecting groove, the metal clamp is provided with a clamping groove or a clamping bulge, the connecting bulge can be clamped with the clamping groove, or the connecting groove can be clamped with the clamping bulge;

the limiting structure comprises a first limiting structure arranged on the metal clamp and a second limiting structure arranged on the clamping pad, the first limiting structure and the second limiting structure are matched with each other to limit the clamping pad to move along the length direction of the metal clamp or move along the thickness direction of the metal clamp.

As an optimal structure of the present invention, the clamping protrusion includes a first clamping member, the first clamping member is disposed on the metal clip body and extends along the length direction of the metal clip body, the first clamping member includes a first clamping portion and a first connecting portion having a width smaller than that of the first clamping portion, and the first connecting portion is connected to the metal clip body; the connecting groove comprises a first clamping groove deviating from the clamping face, the first clamping groove comprises a first notch and a first groove bottom, the width of the first notch is larger than that of the first groove bottom, one end of the first notch is communicated with the first groove bottom, the first notch is clamped with the first connecting portion, and the first groove bottom is clamped with the first clamping portion.

As the utility model discloses a preferred structure, first limit structure includes the spacing groove, second limit mechanism includes the stopper, the spacing groove set up in the link of metal clip, the stopper set up in the centre gripping pad is kept away from one side of clamping face, the stopper is close to the end of lining up of first notch, the stopper can the joint the spacing groove.

As an optimized structure of the utility model, the clamping protrusion comprises a second clamping piece, the second clamping piece is arranged on the metal clamp body and extends along the length direction of the metal clamp body, and the width of the second clamping piece is smaller than that of the metal clamp body; the connecting groove comprises a second clamping groove, the second clamping groove deviates from the clamping face and is followed the clamping pad extends in length direction and the two ends of the clamping pad are communicated, the second clamping groove comprises a second notch and a width, the second notch is larger than the second groove bottom of the second notch, the second notch is clamped with the second clamping piece, and the second groove bottom is clamped with the metal clamp body.

As the utility model discloses a preferred structure, first limit structure includes at least one draw-in groove, second limit structure includes at least one latch, the draw-in groove is in on the second notch on the metal clip to the metal clip width direction extends, the latch set up in on the centre gripping pad second joint spare side, the draw-in groove can the joint the latch.

As a preferred structure of the present invention, the connecting protrusion includes a third engaging member, the third engaging member is disposed on the clamping pad body, extends along the length direction of the clamping pad body and deviates from the clamping surface, and the third engaging member includes a third engaging portion and a third connecting portion having a width smaller than that of the third engaging portion; the joint recess includes the third joint groove, the third joint groove includes that third notch and width are greater than the third tank bottom of third notch, the third notch joint the third connecting portion, butt at the bottom of the third tank the third joint portion.

As the utility model discloses a preferred structure, first limit structure includes curved positioning groove and backstop portion, second limit structure is including location arch and backstop piece, positioning groove set up in the link of metal clip, backstop portion is located the third joint groove is kept away from positioning groove's end, location arch with backstop piece set up respectively in on the grip pad third joint spare both ends terminal surface works as protruding butt in location during positioning groove, backstop piece can the butt backstop portion.

As the utility model discloses a preferred structure, it includes fourth joint spare to connect the arch, fourth joint spare arch set up in on the centre gripping pad body, and follow centre gripping pad body length direction extends, fourth joint spare is provided with the spread groove of indent, the joint recess includes fourth joint groove, fourth joint inslot indent in the metal clamp body, fourth joint inslot is provided with bellied connection piece, fourth joint spare joint during fourth joint groove, the connection piece joint the spread groove.

As the utility model discloses a preferred structure, first limit structure includes two shell fragment connecting pieces, second limit structure includes the shell fragment support, the shell fragment leg sleeve is located the centre gripping is filled up on the fourth joint spare, the shell fragment connecting piece set up in the length direction's both ends on the metal clip, the shell fragment support can dismantle connect in the shell fragment connecting piece.

As the utility model discloses a preferred structure, the shell fragment support includes support groove and two support hangers, support groove joint fourth joint spare, the support hangers set up in the both ends in support groove, the shell fragment connecting piece includes spacing hole and string platform, spacing hole runs through metal clip thickness direction, the support hangers can pass spacing hole and the butt of buckling hang the platform.

The utility model has the advantages that: the utility model provides a centre gripping fills up detachable ultrasonic surgical instrument, the centre gripping arm comprises centre gripping pad and the metal clip that can dismantle the connection. The clamping pad is provided with a concave connecting groove or a convex connecting bulge, the metal clamp is correspondingly provided with a convex clamping bulge or a concave clamping groove, and the clamping bulge is clamped in the connecting groove or the connecting bulge is clamped in the clamping groove, so that the clamping pad can be detachably connected to the metal clamp; limiting structure limits the clamping pad to move along the length direction of the metal clamp or move along the thickness direction of the metal clamp through a first limiting structure arranged on the metal clamp and a second limiting structure arranged on the clamping pad, so that the clamping pad is prevented from shifting in the using process, and the cutting capacity and the closing effect of the ultrasonic surgical instrument are prevented from being influenced.

Drawings

FIG. 1 is a first schematic structural view of an ultrasonic surgical instrument provided in accordance with an embodiment of the present invention;

FIG. 2 is a second schematic structural view of an ultrasonic surgical instrument according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a clamp arm according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a metal clip according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a clamping pad according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a clamping arm according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a metal clip according to a second embodiment of the present invention;

fig. 8 is a schematic structural view of a clamping pad according to a second embodiment of the present invention;

fig. 9 is a sectional view of a clamping arm according to a second embodiment of the present invention;

fig. 10 is a schematic structural view of a metal clip according to a third embodiment of the present invention;

fig. 11 is a schematic structural view of a clamping pad according to a third embodiment of the present invention;

fig. 12 is a structural sectional view of a clamp arm provided in a third embodiment of the present invention;

fig. 13 is an exploded view of a clamp arm according to a fourth embodiment of the present invention;

fig. 14 is a schematic structural diagram of a metal clip according to a fourth embodiment of the present invention.

In the figure:

1. a clamp arm; 11. a metal clip; 111. a first clip member; 1111. a first clamping part; 1112. a first connection portion; 112. a second clip member; 113. a third clamping groove; 1131. a third notch; 1132. the bottom of the third groove; 1133. an introduction groove; 114. a fourth clamping groove; 1141. connecting sheets; 12. a clamping pad; 120. a clamping surface; 121. a first clamping groove; 1211. a first notch; 1212. a first tank bottom; 122. a second clamping groove; 1221. a second notch; 1222. the bottom of the second groove; 123. a third clamping piece; 1231. a third clamping connection part; 1232. a third connecting portion; 1233. a guide groove; 124. a fourth clip member; 1241. connecting grooves; 131. a limiting groove; 132. a card slot; 133. a positioning groove; 134. a stopper portion; 135. a spring plate connecting piece; 1351. a limiting hole; 1352. hanging a table; 141. a limiting block; 142. clamping teeth; 143. positioning the projection; 144. a stop block; 145. a spring plate bracket; 1451. a bracket groove; 1452. hanging a bracket; 1453. a second latch;

2. ultrasonic cutter bar;

100. an end effector assembly.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1-3, the embodiment of the present invention provides an ultrasonic surgical instrument with a detachable clamping pad, including an end effector assembly 100, the end effector assembly 100 includes a clamping arm 1 and an ultrasonic knife bar 2, one end of the clamping arm 1 is rotatably connected to the ultrasonic knife bar 2, the clamping arm 1 and the ultrasonic knife bar 2 can be closed and opened to the clamped tissue, the ultrasonic knife bar 2 can utilize ultrasonic energy to clamp the human tissue together with the clamping arm 1, and complete the cutting of the tissue and the closed sealing of the cutting opening. The clamping arm 1 comprises a metal clamp 11, a clamping pad 12 and a limiting structure, the clamping pad 12 is detachably connected to the metal clamp 11, a clamping surface 120 of the clamping pad 12 can abut against the ultrasonic cutter bar 2, and human tissues are clamped between the clamping surface 120 and the ultrasonic cutter bar 2. The clamping pad 12 is provided with a connecting bulge or a connecting groove, the metal clamp 11 is provided with a clamping groove or a clamping bulge, the connecting bulge can be clamped with the clamping groove, or the connecting groove can be clamped with the clamping bulge. Limiting structure is including setting up first limiting structure on metal clamp 11 and setting up the second limiting structure on centre gripping pad 12, and first limiting structure and second limiting structure mutually support and can restrict centre gripping pad 12 and move or move along 11 thickness directions of metal clamp along 11 length direction of metal clamp.

The utility model discloses centre gripping pad detachable ultrasonic surgical instrument, centre gripping arm 1 comprises centre gripping pad 12 and the metal clip 11 that can dismantle the connection. The clamping pad 12 can be provided with a concave connecting groove or a convex connecting bulge, the metal clamp 11 is correspondingly provided with a convex clamping bulge or a concave clamping groove, and the clamping bulge is clamped in the connecting groove or the connecting bulge is clamped in the clamping groove, so that the clamping pad 12 can be detachably connected to the metal clamp 11, and when the clamping pad 12 is worn due to long-term high-temperature use, the clamping pad can be quickly detached and reinstalled for replacement; limiting structure limits the clamping pad 12 to move along the length direction of the metal clamp 11 or move along the thickness direction of the metal clamp 11 through the first limiting structure arranged on the metal clamp 11 and the second limiting structure arranged on the clamping pad 12, so that the clamping pad 12 is prevented from shifting in the using process, and the cutting capacity and the closing effect of the ultrasonic surgical instrument are prevented from being influenced.

Example one

As shown in fig. 4-6, the clamping arm 1 of the embodiment of the present invention includes the aforementioned detachably connected clamping pad 12 and the metal clip 11, and the clamping surface 120 of the clamping pad 12 can abut against the ultrasonic arbor 2. As shown in fig. 4, the clamping protrusion includes a first clamping member 111, the first clamping member 111 is disposed on the metal clip 11 body and extends along the length direction of the metal clip 11 body, the first clamping member 111 includes a first clamping portion 1111 and a first connecting portion 1112 whose width is smaller than the first clamping portion 1111, and the first connecting portion 1112 is connected to the body. The connecting groove on the clamping pad 12 includes a first clamping groove 121 facing away from the clamping surface 120, as shown in fig. 5, the first clamping groove 121 includes a first notch 1211 and a first groove bottom 1212 having a width greater than that of the first notch 1211, and one end of the first notch 1211 penetrates through the first groove bottom 1212. The first notch 1211 is engaged with the first connection portion 1112, and the first groove bottom 1212 is engaged with the first engaging portion 1111, so as to detachably connect the clamping pad 12 and the metal clip 11. As shown in fig. 6, as seen from the cross-sectional view of the holding arm 1, the width of the first notch 1211 is smaller than the width of the first groove bottom 1212, so that the first locking member 111 is locked in the first locking groove 121. The shape of the first clamping member 111 can be inverted trapezoid, T-shaped, etc., as long as the width of the first clamping portion 1111 is greater than the width of the first connecting portion 1112, the first clamping member 111 can be detachably connected to the first clamping groove 121.

Further, the first limiting structure comprises a limiting groove 131, and the second limiting structure comprises a limiting block 141, as shown in fig. 4, the limiting groove 131 is disposed at the connecting end of the metal clip 11, and the connecting end is used for connecting other structures of the ultrasonic surgical instrument. The limiting block 141 is disposed on a side of the clamping pad 12 away from the clamping surface 120, as shown in fig. 5, the limiting block 141 is close to the through end of the first notch 1211; the stopper 141 can engage with the stopper groove 131. After the first engaging member 111 is completely connected to the first engaging groove 121, the limiting groove 131 engages with the limiting block 141 to prevent the clamping pad 12 from moving along the length direction of the metal clip 11.

Example two

As shown in fig. 7-9, the clamping arm 1 of the embodiment of the present invention includes the aforementioned detachably connected clamping pad 12 and the metal clip 11, and the clamping surface 120 of the clamping pad 12 can abut against the ultrasonic arbor 2. The clamping protrusion comprises a second clamping piece 112, the second clamping piece 112 is arranged on the body of the metal clamp 11 and extends along the length direction of the body, and the width of the second clamping piece 112 is smaller than that of the body of the metal clamp 11, as shown in fig. 7; compared with the first clip 111 in the first embodiment, the second clip 112 has a simpler structure. The connecting groove includes a second clamping groove 122, the second clamping groove 122 deviates from the clamping surface 120 of the clamping pad 12 and extends along the length direction of the clamping pad 12, and two ends of the second clamping groove 122 are through, as shown in fig. 8, the second clamping groove 122 includes a second notch 1221 and a second groove bottom 1222 having a width greater than that of the second notch 1221. The second notch 1221 is engaged with the second engaging member 112, and the second groove bottom 1222 is engaged with the body of the metal clip 11, so as to realize the detachable connection between the clamping pad 12 and the metal clip 11, as shown in fig. 9.

Further, the first limiting structure includes at least one engaging groove 132, the second limiting structure includes at least one engaging tooth 142, and the engaging groove 132 extends in the width direction of the metal clip 11 on the second notch 1221 of the metal clip 11. The latch 142 is disposed on the side of the second clamping member 112 on the clamping pad 12, preferably, a plurality of latches 142 are disposed on the side of both sides of the second clamping member 112, and the latch 142 latches the slot 132 one by one, so as to limit the movement of the clamping pad 12 on the metal clip 11 along the length direction. Preferably, the clamping pad 12 is made of a plastic material and has good elasticity, and when the second clamping member 112 is slidably connected to the second clamping groove 122, the clamping teeth 142 can slide along the second notches 1221, and finally, the clamping teeth 142 and the clamping grooves 132 can be clamped in a one-to-one correspondence manner.

EXAMPLE III

As shown in fig. 10-12, the clamping arm 1 of the present invention comprises the aforementioned detachably connected clamping pad 12 and metal clip 11. The connecting protrusion of the clamping pad 12 comprises a third clamping member 123, and the third clamping member 123 is arranged on the body of the clamping pad 12, extends along the length direction of the body of the clamping pad 12 and deviates from the clamping surface 120; the third clamping member 123 of the metal clip 11 includes a third clamping portion 1231 and a third connecting portion 1232 having a width smaller than that of the third clamping portion 1231, as shown in fig. 11; the clamping groove includes a third clamping groove 113, and the third clamping groove 113 includes a third slot 1131 and a third slot bottom 1132 having a width greater than that of the third slot 1131, as shown in fig. 10; the third slot 1131 is clamped to the third connecting portion 1232, and the third slot bottom 1132 abuts against the third clamping portion 1231, so as to realize the detachable connection between the clamping pad 12 and the metal clip 11, as shown in fig. 12.

Further, the first limiting structure comprises an arc-shaped positioning groove 133 and a stopping portion 134, the second limiting structure comprises a positioning protrusion 143 and a stopping block 144, the positioning groove 133 is disposed at the connecting end of the metal clip 11, the stopping portion 134 is located at the end of the third clamping groove 113 far away from the positioning groove 133, and the positioning protrusion 143 and the stopping block 144 are respectively disposed on the end surfaces of the two ends of the third clamping member 123 on the clamping pad 12; when the positioning projection 143 abuts the positioning groove 133, the stopper 144 can abut the stopper 134. Through the cooperation of the positioning protrusion 143 and the positioning groove 133, and the cooperation of the stopping block 144 and the stopping portion 134, the clamping pad 12 is limited from sliding along the length direction of the metal clamp 11, and the limiting is good. Preferably, the third catching groove 113 further includes a lead-in groove 1133; a lead-in groove 1133 is provided at one end of the third clamping groove 113, and the width of the lead-in groove 1133 is greater than that of the third notch 1131, so as to facilitate the insertion and sliding of the clamping pad 12 from the lead-in groove 1133; correspondingly, as shown in fig. 11, the third clamping member 123 further includes a guiding groove 1233, and when the third clamping member 123 slides along the third clamping groove 113, in order to fit the third clamping groove 113, the guiding groove 1233 can be deformed by extrusion, so that the assembly connection between the clamping pad 12 and the metal clip 11 is more labor-saving.

Example four

As shown in fig. 13 and 14, the clamping arm 1 of the embodiment of the present invention includes the aforementioned detachable clamping pad 12 and the metal clip 11, the connecting protrusion of the clamping pad 12 includes the fourth clamping member 124, and the fourth clamping member 124 is protrudingly disposed on the body of the clamping pad 12 and extends along the length direction of the body of the clamping pad 12. The fourth clamping member 124 is provided with a concave connecting groove 1241, as shown in fig. 13; the clamping groove of the metal clip 11 comprises a fourth clamping groove 114, the fourth clamping groove 114 is recessed in the body of the metal clip 11, and a raised connecting sheet 1141 is arranged in the fourth clamping groove 114, as shown in fig. 14; when the fourth clamping member 124 is clamped in the fourth clamping groove 114, the connecting piece 1141 is clamped in the connecting groove 1241, so as to detachably connect the clamping pad 12 and the metal clip 11.

Further, as shown in fig. 13, the first limiting structure includes two elastic sheet connectors 135, the second limiting structure includes an elastic sheet support 145, the elastic sheet support 145 is sleeved on the fourth clamping member 124 of the clamping pad 12, the elastic sheet connectors 135 are respectively disposed at two ends of the metal clip 11 in the length direction, the elastic sheet support 145 is detachably connected to the elastic sheet connectors 135, the clamping pad 12 can be limited from moving in the thickness direction of the metal clip 11, and the connection strength between the clamping pad 12 and the metal clip 11 is further increased.

Furthermore, the spring plate bracket 145 includes a bracket groove 1451 and two bracket hangers 1452, the bracket groove 1451 is clamped with the fourth clamping member 124, the bracket hangers 1452 are disposed at two ends of the bracket groove 1451, the spring plate connector 135 includes a limiting hole 1351 and a hanging table 1352, the limiting hole 1351 penetrates through the thickness direction of the metal clip 11, and the bracket hangers 1452 can penetrate through the limiting hole 1351 and bend to abut against the hanging table 1352, which is convenient to disassemble and assemble. Preferably, the spring support 145 further includes a plurality of second latches 1453, the plurality of second latches 1453 are circumferentially distributed inside the support groove 1451 along the support groove 1451, and the plurality of second latches 1453 can engage with the fourth engaging member 124, so that the spring support 145 and the fourth engaging member 124 are connected more firmly. The bracket hangers 1452 can be bent and abut against the hanging platform 1352 after being bent, so that the spring plate bracket 145 is prevented from loosening.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. An ultrasonic surgical instrument with a detachable clamping pad, comprising:

the clamping device comprises a clamping arm (1), wherein the clamping arm (1) comprises a metal clamp (11), a clamping pad (12) and a limiting structure, the clamping pad (12) is detachably connected to the metal clamp (11), a clamping surface (120) of the clamping pad (12) can abut against an ultrasonic cutter bar (2), the clamping pad (12) is provided with a connecting bulge or a connecting groove, the metal clamp (11) is provided with a clamping groove or a clamping bulge, and the connecting bulge can be clamped with the clamping groove or the connecting groove can be clamped with the clamping bulge;

the limiting structure comprises a first limiting structure arranged on the metal clamp (11) and a second limiting structure arranged on the clamping pad (12), and the first limiting structure and the second limiting structure are matched with each other to limit the clamping pad (12) to move along the length direction of the metal clamp (11) or along the thickness direction of the metal clamp (11).

2. The ultrasonic surgical instrument with a detachable clamping pad of claim 1, wherein the clamping protrusion comprises a first clamping member (111), the first clamping member (111) is arranged on the body of the metal clip (11) and extends along the length direction of the body of the metal clip (11), the first clamping member (111) comprises a first clamping portion (1111) and a first connecting portion (1112) with a width smaller than that of the first clamping portion (1111), and the first connecting portion (1112) is connected to the body of the metal clip (11); the connecting groove comprises a first clamping groove (121) deviating from the clamping surface (120), the first clamping groove (121) comprises a first notch (1211) and a first groove bottom (1212) with a width larger than the first notch (1211), one end of the first notch (1211) is penetrated through, the first notch (1211) is clamped with the first connecting portion (1112), and the first groove bottom (1212) is clamped with the first clamping portion (1111).

3. The ultrasonic surgical instrument with the detachable clamping pad as claimed in claim 2, wherein the first limiting structure comprises a limiting groove (131), the second limiting structure comprises a limiting block (141), the limiting groove (131) is disposed at the connecting end of the metal clip (11), the limiting block (141) is disposed at a side of the clamping pad (12) facing away from the clamping surface (120), the limiting block (141) is close to the through end of the first notch (1211), and the limiting block (141) can be clamped in the limiting groove (131).

4. The ultrasonic surgical instrument with a detachable clamping pad of claim 1, wherein the clamping protrusion comprises a second clamping member (112), the second clamping member (112) is arranged on the metal clamp (11) body and extends along the length direction of the metal clamp (11) body, and the width of the second clamping member (112) is smaller than that of the metal clamp (11) body; connecting groove includes second joint groove (122), second joint groove (122) deviates from clamping face (120) and edge centre gripping pad (12) length direction extends and both ends link up, second joint groove (122) include second notch (1221) and width are greater than second tank bottom (1222) of second notch (1221), second notch (1221) joint second joint spare (112), second tank bottom (1222) joint metal clamp (11) body.

5. The ultrasonic surgical instrument with detachable clamping pad of claim 4, wherein the first limiting structure comprises at least one clamping groove (132), the second limiting structure comprises at least one clamping tooth (142), the clamping groove (132) extends to the width direction of the metal clip (11) on a second notch (1221) on the metal clip (11), the clamping tooth (142) is arranged at the side of the second clamping piece (112) on the clamping pad (12), and the clamping groove (132) can be clamped with the clamping tooth (142).

6. The ultrasonic clamp pad-detachable surgical instrument according to claim 1, wherein the connecting protrusion comprises a third snap (123), the third snap (123) is disposed on the body of the clamp pad (12) and extends along the length of the body of the clamp pad (12) and faces away from the clamping surface (120), and the third snap (123) comprises a third clamping portion (1231) and a third connecting portion (1232) having a width smaller than that of the third clamping portion (1231); the joint recess includes third joint groove (113), third joint groove (113) include third notch (1131) and width and are greater than third tank bottom (1132) of third notch (1131), third notch (1131) joint third connecting portion (1232), third tank bottom (1132) butt third joint portion (1231).

7. The ultrasonic surgical instrument with detachable clamping pad as claimed in claim 6, wherein said first limiting structure comprises an arc-shaped positioning groove (133) and a stopping portion (134), said second limiting structure comprises a positioning protrusion (143) and a stopping block (144), said positioning groove (133) is disposed at the connecting end of said metal clip (11), said stopping portion (134) is located at the end of said third clamping groove (113) far away from said positioning groove (133), said positioning protrusion (143) and said stopping block (144) are respectively disposed at the two end faces of said third clamping member (123) on said clamping pad (12), and when said positioning protrusion (143) abuts against said positioning groove (133), said stopping block (144) can abut against said stopping portion (134).

8. The ultrasonic surgical instrument with the detachable clamping pad of claim 1, wherein the connecting protrusion comprises a fourth clamping member (124), the fourth clamping member (124) is convexly disposed on the body of the clamping pad (12) and extends along the length direction of the body of the clamping pad (12), the fourth clamping member (124) is provided with a concave connecting groove (1241), the clamping groove comprises a fourth clamping groove (114), the fourth clamping groove (114) is concave in the body of the metal clip (11), a convex connecting piece (1141) is disposed in the fourth clamping groove (114), and when the fourth clamping member (124) clamps the fourth clamping groove (114), the connecting piece (1141) is clamped with the connecting groove (1241).

9. The ultrasonic surgical instrument with a detachable clamping pad of claim 8, wherein the first limiting structure comprises two elastic sheet connectors (135), the second limiting structure comprises an elastic sheet bracket (145), the elastic sheet bracket (145) is sleeved on the fourth clamping member (124) of the clamping pad (12), the elastic sheet connectors (135) are arranged at two ends of the metal clip (11) in the length direction, and the elastic sheet bracket (145) is detachably connected to the elastic sheet connectors (135).

10. The ultrasonic surgical instrument with a detachable clamping pad of claim 9, wherein the spring plate bracket (145) comprises a bracket groove (1451) and two bracket hanging lugs (1452), the bracket groove (1451) is clamped with the fourth clamping member (124), the bracket hanging lugs (1452) are arranged at two ends of the bracket groove (1451), the spring plate connector (135) comprises a limiting hole (1351) and a hanging platform (1352), the limiting hole (1351) penetrates through the thickness direction of the metal clip (11), and the bracket hanging lugs (1452) can penetrate through the limiting hole (1351) and are bent to abut against the hanging platform (1352).

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