CN112617955B - Detachable clip applier - Google Patents

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a detachable clip applier. The invention provides a detachable clip applier, aiming at the problems that most clip appliers in the prior art are of an integrated structure and cannot be detached, so that the clip appliers are inconvenient to clean and not thorough to disinfect, and the detachable clip applier comprises a clip handle and an outer sleeve connected to the clip handle, wherein a push rod is arranged in the outer sleeve, one end of the push rod is pressed on the clip handle, the other end of the push rod is connected with a chuck for adjusting the opening degree by moving the push rod, a direction selection component and a limiting component are respectively arranged on the outer sleeve and the push rod, and the limiting component can slide out of the outer sleeve by rotating the push rod to a preset direction and sliding the push rod. The clamp applying forceps provided by the invention can realize the installation and the disassembly of the push rod only through the mutual matching of the direction selecting component and the limiting piece, the push rod can be separated during cleaning and disinfection so as to ensure the cleaning and disinfection effects, the structure is simple, fewer parts can be independently disassembled, and the assembly is convenient.

Description

Detachable clip applier

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a detachable clip applier.

Background

Clip applier is a commonly used medical device, and is generally suitable for use in surgical procedures, such as laparoscopic surgery, where it is necessary to apply a clip to arterial and venous vessels at a surgical site to temporarily block the vessels and prevent excessive bleeding. Most of the clip appliers in the prior art adopt an integrated structure and cannot be disassembled, so that the clip appliers are inconvenient and incomplete to clean and disinfect.

In response to this problem, people have also conducted research and study in long-term production and life practices, for example, chinese utility model patent discloses a detachable laparoscopic clip applier [ application No.: 201520710238.3], the utility model discloses a include that the binding clip passes through the screw to be connected with binding clip connecting piece, the binding clip passes through sliding fit and is connected with the push rod head, push rod head boss and binding clip recess relative slip, the removable swing joint of binding clip connecting piece internal thread and connection nut rear end external screw thread, the push rod head right-hand member passes coupling nut and spring, binding clip connecting piece and coupling nut welded fastening make binding clip, binding clip connecting piece and push rod head constitute and to dismantle the module, the binding clip constitutes general module with the pincers handle.

The utility model discloses a although the utility model provides a detachable execute clamp, its structure is too complicated, and the spare part that can dismantle alone is more, is difficult for the assembly, so still need carry out further improvement.

Disclosure of Invention

The invention aims to solve the problems and provides a detachable clip applier which is convenient to clean and disinfect and simple in structure.

In order to achieve the purpose, the invention adopts the following technical scheme:

a detachable clip applier comprises a clip handle and an outer sleeve connected to the clip handle, wherein a push rod is arranged in the outer sleeve, one end of the push rod is pressed on the clip handle, the other end of the push rod is connected with a chuck for adjusting the opening degree through a movable push rod, a direction selection assembly and a limiting part are further arranged on the outer sleeve and the push rod respectively, and the limiting part can slide to the outside of the outer sleeve through the direction selection assembly by rotating the push rod to a preset direction and sliding the push rod.

In the detachable clip applier, the direction selection component comprises a selection tube body fixedly connected to the outer sleeve, one end of the push rod penetrates through the selection tube body and is connected with the chuck, and the inner wall of the selection tube body is provided with a selection groove sunken towards the interior of the selection tube body; the limiting part comprises a limiting lug fixedly connected to the push rod, the cross section area of the limiting lug is smaller than that of the selection groove, and the push rod is rotated to enable the limiting lug to move to a position corresponding to the selection groove.

In the detachable clip applier, a tensioning component with adjustable length along the axial lead direction of the push rod is further arranged in the outer sleeve, one end of the tensioning component is fixed in the outer sleeve, and the other end of the tensioning component is pressed on the limiting lug.

In the above removable clip applier, the tensioning assembly comprises a tensioning member pressed on the limiting projection and a connecting member fixed in the outer sleeve, an elastic structure is further arranged between the tensioning member and the connecting member, and the tensioning member can move close to the connecting member by compressing the elastic structure.

In the above detachable clip applier, a side surface of the tensioning member, which is close to the limiting projection, is provided with a first positioning groove and a second positioning groove which are recessed towards the inside of the tensioning member, the rotating push rod can enable the limiting projection to be clamped into the first positioning groove or the second positioning groove, and when the limiting projection is located in the first positioning groove, the limiting projection and the selecting groove are located at corresponding positions.

In the detachable clip applier, the cross section of the limiting lug is circular, the bottom surface of the first positioning groove is arc-shaped, when the limiting lug is positioned in the first positioning groove, the outer surface of the limiting lug is attached to the bottom surface of the first positioning groove, and the bottom surface of the second positioning groove is a plane.

In foretell removable pincers of executing, the pincers handle is including rotating fixed handle and the activity handle of connecting, and the one end of fixed handle is equipped with the pipe external member that inside has the promotion cavity, outer bushing is on the pipe external member, the rotation tie point of activity handle and fixed handle is located outside the promotion cavity and the one end of activity handle extends to in the promotion cavity, push rod one end extends to in the promotion cavity and presses the tip of establishing at the activity handle.

In foretell removable clamp of executing, still be equipped with in the promotion cavity and take place the gliding anticreep subassembly of relative pipe external member, the tip that the push rod extends to in the promotion cavity is pressed and is established on the anticreep subassembly, the activity handle extends to the tip that promotes in the cavity and presses and establish on the anticreep subassembly, and slip anticreep subassembly can make push rod and anticreep subassembly alternate segregation or lock each other.

In foretell removable clamp of executing, the anticreep subassembly includes the anticreep sleeve pipe of sliding connection in the pipe external member, is equipped with reset spring between anticreep sleeve pipe and the pipe external member, and the one end of push rod runs through reset spring and presses and establish in the anticreep sleeve pipe, the one end of activity handle extends to in the anticreep sleeve pipe and presses and establish on the anticreep sleeve pipe, the push rod is located the one end side in the anticreep sleeve pipe and is equipped with the gomphosis groove sunken to the push rod inside, be equipped with the inserts that can inlay the gomphosis groove on the anticreep sleeve pipe, the slip anticreep sleeve pipe can make the inserts deviate from or imbed the gomphosis groove.

In the above detachable clip applier, the pushing cavity includes a locking cavity and a separating cavity which are communicated with each other, the inner diameter of the separating cavity is larger than that of the locking cavity, the sliding anti-drop sleeve enables the insert to be located in the locking cavity or the separating cavity, when the insert is located in the locking cavity, one end of the insert extends to the embedding groove, and when the insert is located in the separating cavity, the insert is located outside the embedding groove.

Compared with the prior art, the invention has the advantages that:

1. the clamp applying forceps provided by the invention can realize the installation and the disassembly of the push rod only through the mutual matching of the direction selecting component and the limiting piece, the push rod can be separated during cleaning and disinfection so as to ensure the cleaning and disinfection effects, and meanwhile, the clamp applying forceps are simple in structure, few in parts which can be independently disassembled, and convenient to assemble.

2. The outer sleeve is internally provided with a tensioning assembly which is arranged on the push rod in a pressing mode, and the tensioning assembly provides tensioning force for the push rod so that the push rod drives the chuck to be in a tensioned state.

3. The anti-falling component is arranged to prevent the push rod from falling off automatically after rotating to the preset direction, so that the stability of the structure of the assembled clamp is improved, and the push rod is prevented from being accidentally separated from other structures of the clamp in the transportation or storage process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a cross-sectional view of a portion of the structure of the present invention;

FIG. 4 is a schematic structural view of a portion of the structure of the present invention;

FIG. 5 is a schematic view of the construction of the direction selection assembly and the tensioning assembly;

FIG. 6 is a cross-sectional view of a portion of the structure of the present invention;

in the figure: the clamp comprises aclamp handle 1, anouter sleeve 2, apush rod 3, aclamp head 4, adirection selection assembly 5, atensioning assembly 6, ananti-falling assembly 7, alimiting piece 8, afixed handle 11, amovable handle 12, apipe sleeve piece 13, apushing cavity 14, alocking cavity 15, aseparation cavity 16, aselection pipe body 51, aselection groove 52, atensioning piece 61, a connectingpiece 62, anelastic structure 63, afirst positioning groove 64, asecond positioning groove 65, ananti-falling sleeve 71, areturn spring 72, amosaic groove 73, aninsert 74 and a limitinglug 81.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in the combined drawings of figure 1 and figure 2, a detachable clip applier comprises aclip handle 1 and anouter sleeve 2 connected to theclip handle 1, apush rod 3 is arranged in theouter sleeve 2, one end of thepush rod 3 is pressed on theclip handle 1, the other end of the push rod is connected with achuck 4 capable of adjusting the opening degree through amovable push rod 3, the specific structure of thechuck 4 and the connection mode of thechuck 4 and apush rod assembly 3 can be selected, the specific structure commonly used in the prior art can be selected, as long as the effect of changing the opening degree of thechuck 4 through pushing thepush rod assembly 3 can be realized, and for example, the specific structure recorded in the utility model patent with the application number of '201020209114.4' can be adopted. Theouter sleeve 2 and thepush rod 3 are respectively provided with adirection selection component 5 and alimiting component 8, and thelimiting component 8 can slide outside theouter sleeve 2 through thedirection selection component 5 by rotating thepush rod 3 to a preset direction and sliding thepush rod 3.

When the device is used, thepush rod 3 and the preset direction are staggered, so that thelimiting piece 8 can be pressed on thedirection selection component 5 by sliding thepush rod 3, thepush rod 3 is prevented from falling out of theouter sleeve 2, when cleaning and disinfection are needed, thepush rod 3 is rotated to the preset direction, and thelimiting piece 8 and thepush rod 3 pass through thedirection selection component 5 and slide out of theouter sleeve 2 by sliding thepush rod 3, so that disassembly is realized. Therefore, the clamp applying forceps provided by the invention can realize the installation and the disassembly of the push rod only through the mutual matching of thedirection selecting component 5 and thelimiting component 8, thepush rod 3 can be separated during cleaning and disinfection, so as to ensure the cleaning and disinfection effects, meanwhile, the structure is simple, the number of parts which can be independently disassembled is small, and the assembly is convenient.

As shown in fig. 5 and 6, thedirection selecting assembly 5 includes a selectingpipe body 51 fixedly connected to theouter sleeve 2, one end of thepush rod 3 passes through the selectingpipe body 51 and is connected to thechuck 4, and the inner wall of the selectingpipe body 51 is provided with a selectinggroove 52 recessed toward the inside of the selectingpipe body 51; the limitingmember 8 includes alimiting protrusion 81 fixedly connected to thepush rod 3, the cross-sectional area of thelimiting protrusion 81 is smaller than the cross-sectional area of theselection groove 52, and thepush rod 3 is rotated to move thelimiting protrusion 81 to a position corresponding to theselection groove 52.

During the use, misplace each other betweenpush rod 3 and the predetermined direction, the position whenspacing lug 81 corresponds withselection recess 52 is so-called predetermined direction,slide push rod 3 can makespacing lug 81 press to be established onbody 51 like this, thereby prevent thatpush rod 3 from deviating from outsideouter tube 2, when needing to carry out cleaning and disinfection, rotatepush rod 3 to predetermined direction,slide push rod 3 this moment,spacing lug 81 can be via selectingrecess 52 roll-off, thereby makepush rod 3 pass throughdirection selection subassembly 5 and slide outsideouter tube 2, thereby realize dismantling.

Preferably, there are 2 limitingprotrusions 81 and 2 selectinggrooves 52, and they are uniformly distributed along the axial line direction of thepush rod assembly 3. Therefore, the tension applied when thetension assembly 6 is pressed on thelimit bump 81 is distributed uniformly.

As shown in fig. 5, atensioning assembly 6 with adjustable length along the axial lead direction of thepush rod 3 is further arranged in theouter sleeve 2, one end of thetensioning assembly 6 is fixed in theouter sleeve 2, and the other end is pressed on thelimit bump 81.

Specifically, thetensioning assembly 6 includes atensioning member 61 pressed on thelimit protrusion 81 and a connectingmember 62 fixed in theouter sleeve 2, and the connectingmember 62 is fixed in theouter sleeve 2 in a fixed connection manner or in an interference fit manner. Anelastic structure 63 is further arranged between thetensioning member 61 and the connectingmember 62, and thetensioning member 61 can move close to the connectingmember 62 by compressing theelastic structure 63. Theelastic structure 63 may be a spring or a rubber ring.

As shown in fig. 5, a side surface of thetensioning member 61 close to thelimiting protrusion 81 is provided with afirst positioning groove 64 and asecond positioning groove 65 which are recessed towards the inside of thetensioning member 61, the rotatingpush rod 3 can make thelimiting protrusion 81 be clamped into thefirst positioning groove 64 or thesecond positioning groove 65, and when thelimiting protrusion 81 is located in thefirst positioning groove 64, thelimiting protrusion 81 and theselecting groove 52 are located at corresponding positions. The cooperation between thefirst positioning groove 64 and thesecond positioning groove 65 and thelimit projection 81 facilitates the rapid positioning of thepush rod 3 during the rotation process.

When the positioning device is used, thepush rod 3 is rotated to enable thelimiting lug 81 to be clamped into thefirst positioning groove 64, and thepush rod 3 is in a detachable direction at the moment. When thepush rod 3 is rotated to make thelimit projection 81 be clamped into thesecond positioning groove 65, thepush rod 3 is in the non-detachable direction.

Preferably, the cross section of thelimiting bump 81 is circular, the bottom surface of thefirst positioning groove 64 is arc-shaped, when thelimiting bump 81 is located in thefirst positioning groove 64, the outer surface of thelimiting bump 81 is attached to the bottom surface of thefirst positioning groove 64, and the bottom surface of thesecond positioning groove 65 is a plane. Therefore, the acting forces of thefirst positioning groove 64 and thesecond positioning groove 65 when being mutually clamped with thelimiting convex block 81 are different, and the requirements of the rotatingpush rod 3 in different directions are better met.

Referring to fig. 2-4, theforceps handle 1 includes afixed handle 11 and amovable handle 12 which are rotatably connected, atube assembly 13 having a pushingcavity 14 inside is disposed at one end of thefixed handle 11, theouter tube 2 is connected to thetube assembly 13, a rotation connection point of themovable handle 12 and thefixed handle 11 is located outside the pushingcavity 14, one end of themovable handle 12 extends into the pushingcavity 14, one end of thepush rod 3 extends into the pushingcavity 14 and is pressed at an end of themovable handle 12, so that the end of themovable handle 12 can move along an axial line direction of the pushingcavity 14 by rotating themovable handle 12 to push thepush rod 3 to move.

In use, a user applies pressure to themovable handle 12 to rotate themovable handle 12 relative to thefixed handle 11, thereby pushing thepush rod 3 to move in thepush cavity 14.

As shown in fig. 2 and 3, ananti-separation assembly 7 capable of sliding relative to thetube set 13 is further disposed in the pushingcavity 14, the end portion of thepush rod 3 extending into the pushingcavity 14 is pressed on theanti-separation assembly 7, the end portion of themovable handle 12 extending into the pushingcavity 14 is pressed on theanti-separation assembly 7, and the slidinganti-separation assembly 7 can enable thepush rod 3 and theanti-separation assembly 7 to be separated from each other or locked to each other. Theanti-falling component 7 is arranged to prevent thepush rod 3 from falling off automatically after rotating to the preset direction, so that the stability of the structure of the assembled clip applier is improved, and thepush rod 3 is prevented from being accidentally separated from other structures of the clip applier during transportation or storage.

Specifically, theanti-falling assembly 7 includes ananti-falling sleeve 71 slidably connected in thetube kit 13, areturn spring 72 is disposed between theanti-falling sleeve 71 and thetube kit 13, one end of thepush rod 3 penetrates through thereturn spring 72 and is pressed in theanti-falling sleeve 71, one end of themovable handle 12 extends into theanti-falling sleeve 71 and is pressed on theanti-falling sleeve 71, afitting groove 73 recessed into thepush rod 3 is disposed on a side surface of one end of thepush rod 3 located in theanti-falling sleeve 71, aninsert 74 capable of being fitted into thefitting groove 73 is disposed on theanti-falling sleeve 71, and theinsert 74 can be removed from or fitted into thefitting groove 73 by sliding theanti-falling sleeve 71. Theinsert 74 may be a sphere, a wedge, or other structures with an arc surface or an inclined surface, so as to be inserted into or removed from thefitting groove 73 during the pushing process. The pushingcavity 14 comprises alocking cavity 15 and a separatingcavity 16 which are communicated with each other, the inner diameter of the separatingcavity 16 is larger than that of thelocking cavity 15, theinsert 74 can be located in thelocking cavity 15 or the separatingcavity 16 by sliding theanti-falling sleeve 71, when theinsert 74 is located in thelocking cavity 15, one end of theinsert 74 extends into theembedding groove 73, and when theinsert 74 is located in the separatingcavity 16, theinsert 74 is located outside theembedding groove 73.

When the anti-loosening mechanism is used, themovable handle 12 is rotated to drive theanti-loosening sleeve 71 to push thepush rod 3 to move, when thelimiting lug 81 and theselection groove 52 are staggered, thelimiting lug 81 is pressed on theselection pipe body 51 to prevent thepush rod 3 from further moving, and theinsert 74 is always positioned in thelocking cavity 15, so that thepush rod 3 cannot be detached and separated; when thelimiting convex block 81 and the selectinggroove 52 are in opposite positions, thelimiting convex block 81 enables thepush rod 3 to be pushed by theanti-falling sleeve 71 to further move through the selectinggroove 52, at the moment, theinsert 74 is transferred into the separatingcavity 16 from thelocking cavity 15, theinsert 74 is separated from theembedding groove 73 under the pressure effect, and therefore thepush rod 3 can be separated and separated detachably.

The working principle of the invention is as follows: when thepush rod 3 is dislocated with the predetermined direction, that is, thelimiting protrusion 81 is dislocated with theselection groove 52, themovable handle 12 is rotated to drive theanti-falling sleeve 71 to push thepush rod 3 to move, so that only thechuck 4 is clamped, and thelimiting protrusion 81 is pressed on thetube body 51, thereby preventing thepush rod 3 from falling out of theouter sleeve 2; when cleaning and disinfection are needed, thepush rod 3 is rotated to the preset direction, namely, thelimiting convex block 81 and theselection groove 52 are in relative positions, themovable handle 12 is rotated at the moment to drive theanti-falling sleeve 71 to push thepush rod 3, thelimiting convex block 81 can slide out through theselection groove 52, so that thepush rod 3 passes through thedirection selection assembly 5 and slides out of theouter sleeve 2, and disassembly is realized. If thepush rod 3 is rotated to a predetermined direction during transportation or storage, theinsert 74 is engaged in the engaginggroove 73, so that thepush rod 3 is difficult to be automatically released out of theouter sleeve 2 without manually rotating themovable handle 12. Therefore, the clip applier provided by the invention can realize the installation and the disassembly of thepush rod 3 only through thedirection selection component 5 arranged on theouter sleeve 2, thepush rod 3 can be separated during cleaning and disinfection, so as to ensure the cleaning and disinfection effects, meanwhile, the structure is simple, the number of parts which can be independently disassembled is small, and the assembly is convenient.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the forceps handle 1, theouter sleeve 2, thepush rod 3, thechuck 4, thedirection selection assembly 5, thetensioning assembly 6, theanti-slip assembly 7, the limitingmember 8, the fixedhandle 11, themovable handle 12, thetube kit 13, the pushingcavity 14, the lockingcavity 15, the separatingcavity 16, theselection tube body 51, theselection groove 52, the tensioningmember 61, the connectingmember 62, theelastic structure 63, thefirst positioning groove 64, thesecond positioning groove 65, theanti-slip sleeve 71, thereturn spring 72, thefitting groove 73, theinsert 74, the limitingprojection 81, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (6)

1. The utility model provides a removable clamp of executing, includes pincers handle (1) and outer tube (2) of connection on pincers handle (1), be equipped with push rod (3) in outer tube (2), push rod (3) one end is pressed and is established on pincers handle (1), and the other end is connected with chuck (4) of adjusting the aperture through removing push rod (3), its characterized in that: the outer sleeve (2) and the push rod (3) are respectively provided with a direction selection component (5) and a limiting component (8), and the limiting component (8) can slide outside the outer sleeve (2) through the direction selection component (5) by rotating the push rod (3) to a preset direction and sliding the push rod (3);

the direction selection assembly (5) comprises a selection pipe body (51) fixedly connected to the outer sleeve (2), one end of the push rod (3) penetrates through the selection pipe body (51) and is connected with the chuck (4), and a selection groove (52) which is sunken towards the interior of the selection pipe body (51) is formed in the inner wall of the selection pipe body (51); the limiting part (8) comprises a limiting lug (81) fixedly connected to the push rod (3), the cross section area of the limiting lug (81) is smaller than that of the selection groove (52), and the limiting lug (81) can be moved to a position corresponding to the selection groove (52) by rotating the push rod (3);

a tensioning assembly (6) with adjustable length along the axial lead direction of the push rod (3) is further arranged in the outer sleeve (2), one end of the tensioning assembly (6) is fixed in the outer sleeve (2), and the other end of the tensioning assembly (6) is pressed on the limiting bump (81);

the tensioning assembly (6) comprises a tensioning piece (61) pressed on the limiting convex block (81) and a connecting piece (62) fixed in the outer sleeve (2), an elastic structure (63) is further arranged between the tensioning piece (61) and the connecting piece (62), and the tensioning piece (61) can move close to the connecting piece (62) by compressing the elastic structure (63);

one side surface that tensioning piece (61) is close to spacing lug (81) has first positioning groove (64) and second positioning groove (65) to tensioning piece (61) inside sunken, rotates push rod (3) and can make spacing lug (81) block go into in first positioning groove (64) or second positioning groove (65), when spacing lug (81) are located first positioning groove (64), spacing lug (81) are in corresponding the position with selecting recess (52).

2. The detachable clip applier of claim 1, wherein: the cross section of the limiting lug (81) is circular, the bottom surface of the first positioning groove (64) is arc-shaped, when the limiting lug (81) is positioned in the first positioning groove (64), the outer surface of the limiting lug (81) is attached to the bottom surface of the first positioning groove (64), and the bottom surface of the second positioning groove (65) is a plane.

3. The detachable clip applier of claim 1, wherein: pincers handle (1) is including rotating fixed handle (11) and the activity handle (12) of connecting, and the one end of fixed handle (11) is equipped with inside pipe external member (13) that have promotion cavity (14), outer tube (2) are connected on pipe external member (13), the rotation tie point of activity handle (12) and fixed handle (11) is located the one end that promotes cavity (14) outer and activity handle (12) and extends to in promoting cavity (14), push rod (3) one end extends to in promoting cavity (14) and presses the tip of establishing at activity handle (12).

4. The detachable clip applier of claim 3, wherein: promote still to be equipped with in cavity (14) and to take place gliding anticreep subassembly (7) of relative pipe external member (13), push rod (3) extend to the tip pressure that promotes in cavity (14) and establish on anticreep subassembly (7), activity handle (12) extend to the tip pressure that promotes in cavity (14) and establish on anticreep subassembly (7), slip anticreep subassembly (7) can make push rod (3) and anticreep subassembly (7) alternate segregation or lock each other.

5. The detachable clip applier of claim 4, wherein: the anti-falling assembly (7) comprises an anti-falling sleeve (71) which is connected in a pipe kit (13) in a sliding mode, a reset spring (72) is arranged between the anti-falling sleeve (71) and the pipe kit (13), one end of a push rod (3) penetrates through the reset spring (72) and is pressed in the anti-falling sleeve (71), one end of a movable handle (12) extends into the anti-falling sleeve (71) and is pressed on the anti-falling sleeve (71), one end side face, located in the anti-falling sleeve (71), of the push rod (3) is provided with an embedded groove (73) which is sunken in the push rod (3), an embedded piece (74) capable of being embedded into the embedded groove (73) is arranged on the anti-falling sleeve (71), and the anti-falling sleeve (71) can enable the embedded piece (74) to be separated from or embedded into the embedded groove (73).

6. The detachable clip applier of claim 5, wherein: the push cavity (14) comprises a locking cavity (15) and a separation cavity (16) which are communicated with each other, the inner diameter of the separation cavity (16) is larger than that of the locking cavity (15), the insert (74) can be located in the locking cavity (15) or the separation cavity (16) through the sliding anti-falling sleeve (71), when the insert (74) is located in the locking cavity (15), one end of the insert (74) extends into the embedding groove (73), and when the insert (74) is located in the separation cavity (16), the insert (74) is located outside the embedding groove (73).

Images