CN111544163A

CN111544163A - Filler syringe

Info

Publication number: CN111544163A
Application number: CN201911317248.XA
Authority: CN
Inventors: 赵汝琛; 胡晓勇; 龙家超; 潘少威
Original assignee: Guangzhou Arnold Medical Device Co ltd
Current assignee: Guangzhou Arnold Medical Device Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-18

Abstract

The invention discloses a filler injector, which comprises a core pipe, a sleeve, a base and an adjusting piece, wherein the sleeve is connected with the base, an injection channel is arranged in the core pipe along the axial direction, the core pipe comprises a bending part, an intermediate part and a matching part, the sleeve is sleeved outside the bending part and the intermediate part, the adjusting piece is rotatably arranged on the base and is in transmission matching with the matching part, the matching part can be driven to translate by the rotation of the adjusting piece, so that the core pipe extends out of or retracts into the sleeve, the bending part is made of shape memory materials, and when the bending part extends out of the sleeve, the bending part can be automatically bent. Above-mentioned filler syringe, but the flexion automatic bending when stretching out the sleeve pipe, even then stretches out again behind the flexion retraction sleeve pipe, also can realize crooked, then if need adopt the straight tube, adjustable regulating part makes flexion retraction sleeve pipe, if need adopt the return bend, adjustable regulating part makes the flexion stretch out the sleeve pipe, and can stretch out the sheathed tube orientation of injection passage export according to the flexion apart from adjustment, can effectively improve the packing effect.

Description

Filler syringe

Technical Field

The invention relates to the technical field of medical equipment, in particular to a filler injector.

Background

Bone injury is always a difficult problem in the medical field, and because bones are located in human bodies and are difficult to regenerate, after the bone injury occurs, the difficulty in repairing the bones at the injury position is high, a traditional syringe can inject fillers to the bones, but when the operation environment is complex, the syringe cannot extend to a preset area, so that the filling effect is poor, and the operation effect cannot be achieved.

Disclosure of Invention

Based on this, the invention aims to overcome the defects of the prior art and provide a filler injector with good filling effect.

The technical scheme is as follows:

the utility model provides a filler syringe, includes core pipe, sleeve pipe, base and regulating part, the sleeve pipe with pedestal connection, be equipped with the injection passageway that sets up along the axial in the core pipe, the core pipe includes flexion, intermediate part and cooperation portion, the sleeve pipe cover is located the flexion reaches outside the intermediate part, the regulating part is rotatable to be located on the base, the regulating part with cooperation portion transmission cooperation, the rotation of regulating part can drive cooperation portion translation makes the core pipe stretches out or retracts the sleeve pipe, the material of flexion is shape memory material, works as the flexion by when the sleeve pipe stretches out, the flexion can the automatic bending.

The filler injector can utilize the injection channel of the core tube to inject, the sleeve is sleeved outside the bending part and the middle part, the matching part is in transmission matching with the adjusting part, the sleeve is connected with the base, the adjusting part can be rotatably arranged on the base, the core tube can extend out of or retract into the sleeve by rotating the adjusting part, the bending part is made of shape memory materials and has the capability of generating elastic deformation and can retract into the sleeve by elastic deformation, and the bending part can be automatically bent when extending out of the sleeve, so that the bending can be realized even if the bending part extends out of the sleeve again after retracting into the sleeve, if a straight tube is needed, the adjusting part can be adjusted to retract into the sleeve, if a bent tube is needed, the adjusting part can be adjusted to extend out of the sleeve, and the direction of the outlet of the injection channel can be adjusted according to the distance that the bending part extends out of the sleeve, so that, the filling effect can be effectively improved.

In one embodiment, the engaging portion penetrates through the adjusting member and is in threaded engagement with the adjusting member, the base includes a first component and a second component which are detachably connected, the first component and the second component define a mounting opening, the adjusting member is located in the mounting opening, the sleeve is connected with the first component, and the core tube penetrates through the first component, the adjusting member and the second component in sequence.

In one embodiment, the first component is provided with a through hole, the core tube penetrates through the through hole, a guide protrusion is arranged in the through hole, and the matching portion is provided with a guide groove matched with the guide protrusion.

In one embodiment, a groove is formed in the side face, close to the second component, of the adjusting component, an annular structure is arranged on the inner wall of the groove along the circumferential direction, a limiting portion used for extending into the groove is formed in the second component, and a sliding groove in sliding fit with the annular structure is formed in the outer side face of the limiting portion.

In one embodiment, the sleeve includes a sleeve portion and an adjusting portion, the sleeve portion is sleeved outside the bending portion and the middle portion, the adjusting portion is connected to the first component, and the adjusting portion is movable relative to the first component.

In one embodiment, a protruding portion is disposed at an end of the first component away from the second component, and the adjusting portion is sleeved outside the protruding portion and is in threaded fit with the protruding portion.

In one embodiment, the thickness of the first component is smaller than the outer diameter of the adjusting piece, the first component is provided with an abdicating groove for placing the adjusting piece, and the matching part penetrates through the bottom surface of the abdicating groove.

In one embodiment, the receding groove comprises a first groove section and a second groove section which are sequentially arranged along the axial direction of the matching part, the inner diameter of the first groove section is matched with the outer diameter of the adjusting piece, the inner diameter of the first groove section is smaller than the inner diameter of the second groove section, the matching part is arranged on the bottom surface of the first groove section in a penetrating way, the two opposite side walls in the second groove section are respectively provided with a first limiting opening and a second limiting opening, the second split part is provided with a first clamping part and a second clamping part which are used for extending into the second groove section, the end part of the first clamping part bends towards the direction far away from the second clamping part, the end part of the second clamping part bends towards the direction far away from the first clamping part, the end part of the first clamping part can be screwed into the first limiting port, and the end part of the second clamping part can be screwed into the second limiting port.

In one embodiment, the outer side surface of the adjusting piece is provided with anti-skid stripes.

In one embodiment, the end of the curved portion is provided with an outlet communicating with the injection channel, the outlet being arranged towards a direction of curvature away from the curved portion.

Drawings

FIG. 1 is an exploded view of a filler syringe according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a fill syringe according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a filler syringe according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a first component according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a core tube according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a second component according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a first unitary member according to an embodiment of the present invention;

FIG. 8 is a sectional view taken along line A-A of FIG. 3;

fig. 9 is an enlarged schematic view of fig. 1 at B.

Description of reference numerals:

100. the core tube, 110, a bending part, 111, an outlet, 120, an intermediate part, 130, a matching part, 131, a guide groove, 140, an external connection part, 200, a sleeve, 210, a sleeve connection part, 220, an adjusting part, 300, a base, 310, a first component, 311, a through hole, 312, a guide protrusion, 313, an abdicating groove, 313a, a first groove section, 313b, a second groove section, 313c, a first limit opening, 313d, a second limit opening, 313e, a first stop part, 313f, a second stop part, 314, a bulge, 320, a second component, 321, a limit part, 322, a sliding groove, 323, a first clamping part, 324, a second clamping part, 400, an adjusting part, 401, a groove.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

In the present embodiment, the filler injector is mainly used for injecting and filling bone cement, but in other embodiments, the filler injector may also be used for injecting and filling other materials, such as hyaluronic acid in the medical and cosmetic fields; or materials such as viscose in the engineering field.

As shown in fig. 1 and 2, an embodiment discloses a filler injector, which includes a core tube 100, a sleeve 200, a base 300 and an adjusting member 400, wherein the sleeve 200 is connected to the base 300, an injection channel is disposed in the core tube 100 along an axial direction, the core tube 100 includes a bending portion 110, an intermediate portion 120 and a matching portion 130, the sleeve 200 is sleeved outside the bending portion 110 and the intermediate portion 120, the adjusting member 400 is rotatably disposed on the base 300, the adjusting member 400 is in transmission matching with the matching portion 130, the rotation of the adjusting member 400 can drive the matching portion 130 to translate, so that the core tube 100 extends out of or retracts into the sleeve 200, the bending portion 110 is made of a shape memory material, and when the bending portion 110 extends out of the sleeve 200, the bending portion 110 can be automatically bent.

The above-mentioned filler injector can utilize the injection channel of the core tube 100 to inject, the sleeve 200 is sleeved outside the bending part 110 and the middle part 120, the matching part 130 is in transmission matching with the adjusting part 400, because the sleeve 200 is connected with the base 300, the adjusting part 400 can be rotatably arranged on the base 300, the core tube 100 can extend out or retract into the sleeve by rotating the adjusting part 400, because the bending part 110 is made of shape memory material, the sleeve has the capability of generating elastic deformation, the sleeve 200 can be retracted into the elastic deformation through the elastic deformation, and the bending part 110 can be automatically bent when extending out of the sleeve 200, even if the bending part 110 extends out again after retracting into the sleeve 200, the bending can be realized, if a straight tube is needed, the adjusting part 400 can be adjusted to retract the bending part 110 into the sleeve 200, if a bent tube is needed, the adjusting part 400 can be adjusted to extend out of the sleeve 200, and the orientation of the injection channel outlet 111 can, the filler injector can be better close to a preset position and can inject, and the filling effect can be effectively improved.

The above-mentioned adjusting the orientation of the injection passage outlet 111 according to the distance that the bending part 110 protrudes out of the sleeve 200 is specifically: the bending part 110 gradually extends out of the sleeve 200, and the bending degree of the extending part of the bending part 110 is changed, and the direction of the outlet 111 of the injection passage is changed.

In addition, the extension or retraction of the bending part 110 is adjusted by rotating the adjusting member 400, the operation mode is simple, the control of the extension distance is more precise, and the burden of the user can be reduced.

Optionally, the core tube 100 is entirely of shape memory material; or the bends 110 in the core tube 100 are of a shape memory material.

In one embodiment, as shown in fig. 2 and 3, the engaging portion 130 penetrates through the adjusting member 400 and is threadedly engaged with the adjusting member 400, the base 300 includes a first component 310 and a second component 320 which are detachably connected, the first component 310 and the second component 320 define a mounting opening, the adjusting member 400 is located in the mounting opening, the sleeve 200 is connected with the first component 310, and the core tube 100 penetrates through the first component 310, the adjusting member 400 and the second component 320 in sequence. In the structure, first components 310 can be dismantled with second components 320 and be connected, and first components 310 are worn to establish in proper order by core pipe 100, regulating part 400 and second components 320, then the accessible is unpacked first components 310 and second components 320 apart and is changed or adjust core pipe 100, make the concrete environment of adaptation that core pipe 100 can be better, improve the filling effect, core pipe 100 can regard as the guide of installation simultaneously, wear to establish each part through guaranteeing core pipe 100 and make each part can assemble together more easily, convenient to use, furthermore, because the auto-lock function of screw thread, can prevent core pipe 100 from removing once more when adjusting the back use of accomplishing, core pipe 100's location effect is better.

Optionally, as shown in fig. 3, the core tube 100 further includes an external connection portion 140, the external connection portion 140 is disposed on a side of the matching portion 130 away from the middle portion 120, and the external connection portion penetrates through the second split member 320 for communicating with an external pipeline. The external connection portion 140 may be externally connected with a pipeline for delivering the filler.

In other embodiments, the transmission engagement of the adjusting member 400 and the engaging portion 130 may be: the adjusting member 400 is provided with a gear, the matching portion 130 is provided with a rack arranged along the axial direction of the adjusting member, and at the moment, the rotation of the adjusting member 400 can drive the matching portion 130 to translate relative to the adjusting member 400, so that the core tube 100 retracts or extends relative to the sleeve 200.

In other embodiments, the first body member 310 and the second body member 320 may be integrally formed, which provides better integrity without rendering the filler syringe unusable due to failure of the connection between the first body member 310 and the second body member 320.

In one embodiment, as shown in fig. 4 and 5, the first component 310 has a through hole 311, the core tube 100 is inserted into the through hole 311, a guide protrusion 312 is disposed in the through hole 311, and the engaging portion 130 has a guide groove 131 matching with the guide protrusion 312. Since the guide protrusion 312 is engaged with the guide groove 131 of the engaging portion 130, the guide protrusion 312 guides and limits the core tube 100 when the core tube 100 moves, thereby preventing the core tube 100 from rotating together with the adjusting member 400, ensuring that the rotation of the adjusting member 400 can be converted into the axial movement of the core tube 100, and further realizing the adjustment of the extension distance of the core tube 100. And the guide groove 131 is provided on the fitting portion 130 to prevent the core tube 100 from rotating with the adjusting member 400, and the screw-fit of the fitting portion 130 and the adjusting member 400 is not affected.

Alternatively, the side of the mating portion 130 away from the guide slot 131 is a flat surface, and the rest of the mating portion 130 is an external thread with the same outer diameter. At this time, the matching part 130 has fewer parts in threaded matching with the adjusting piece 400, so that the friction force between the matching part 130 and the adjusting piece 400 can be reduced, the adjusting piece 400 can rotate more easily, and the adjustment is convenient.

Alternatively, the guide projection 312 is elongated and is disposed along the axial direction of the fitting portion 130. The core tube 100 is better guided and prevented from rotating.

In one embodiment, as shown in fig. 3 and 6, a groove 401 is formed on a side surface of the adjusting member 400 close to the second component member 320, an annular structure is formed on an inner wall of the groove 401 along the circumferential direction, a limiting portion 321 for extending into the groove 401 is formed on the second component member 320, and a sliding groove 322 in sliding fit with the annular structure is formed on an outer side surface of the limiting portion 321. The sliding groove 322 on the outer side surface of the limiting part 321 is matched with the annular structure on the inner wall of the groove 401, so that the adjusting part 400 can be ensured to rotate, and meanwhile, the limiting part 321 can limit the adjusting part 400 and is used for preventing the core pipe 100 from deviating along the radial direction.

In one embodiment, as shown in fig. 1 to 3, the sleeve 200 includes a sleeve portion 210 and an adjusting portion 220 connected to each other, the sleeve portion 210 is sleeved outside the bending portion 110 and the middle portion 120, the adjusting portion 220 is connected to the first component 310, and the adjusting portion 220 is movable relative to the first component 310. At this time, the overall length of the sleeve 200 connected to the base 300 can be adjusted by moving the adjusting part 200 relative to the first component 310, so that the length of the core tube 100 extending out of the sleeve 200 is correspondingly adjusted, which is convenient for corresponding adjustment according to practical situations.

In one embodiment, as shown in fig. 3, a protrusion 314 is disposed on an end of the first component 310 away from the second component 320, and the adjustment portion 220 is sleeved outside the protrusion 314 and is in threaded engagement with the protrusion 314. The adjustment portion 220 can be moved relative to the first unitary member 310 by rotating the sleeve 200 through a threaded engagement.

Specifically, the inner diameter of the adjusting portion 220 is larger than the inner diameter of the sleeve portion 210, and the joint between the inner wall of the adjusting portion 220 and the inner wall of the sleeve portion 210 is an arc surface or an inclined surface, so that the core tube 100 can be guided to penetrate into the sleeve portion 210, and the core tube 100 can be conveniently assembled.

In one embodiment, as shown in fig. 7 and 8, the thickness of the first component 310 is smaller than the outer diameter of the adjusting member 400, the first component 310 is provided with an offset groove 313 for placing the adjusting member 400, and the matching portion 130 penetrates through the bottom surface of the offset groove 313. At this time, the adjusting member 400 partially extends out of the first component 310, so that the user can rotate the adjusting member 400 conveniently, and meanwhile, the first component 310 is provided with the abdicating groove 313, so that the whole structure is more compact, and the occupied space is reduced.

Optionally, the first component 310 further includes a first branch portion and a second branch portion, the first branch portion and the second branch portion are respectively located at two sides of the avoiding groove 313, and the first branch portion and the second branch portion are both provided with an operation opening. When the adjusting piece 400 is used, the two operation ports can be inserted by different fingers, and then the adjusting piece 400 is rotated, so that the operation is convenient.

Specifically, the relief groove 313 communicates with the through hole 311, and the engaging portion 130 is simultaneously threadedly engaged with the adjusting member 400 and slidably engaged with the guide protrusion 312, so that the core tube 100 can be extended out of or retracted into the sleeve 200 with the rotation of the adjusting member 400.

In one embodiment, as shown in fig. 6 to 8, the avoiding groove 313 includes a first groove section 313a and a second groove section 313b sequentially arranged along an axial direction of the matching portion 130, an inner diameter of the first groove section 313a matches with an outer diameter of the adjusting member 400, an inner diameter of the first groove section 313a is smaller than an inner diameter of the second groove section 313b, the matching portion 130 penetrates through a bottom surface of the first groove section 313a, two opposite side walls of the second groove section 313b are respectively provided with a first limiting opening 313c and a second limiting opening 313d, the second component 320 is provided with a first clamping portion 323 and a second clamping portion 324, the end portion of the first clamping portion 323 bends towards a direction far away from the second clamping portion 324, the end portion of the second clamping portion 324 bends towards a direction far away from the first clamping portion 323, the end portion of the first clamping portion 323 can be screwed into the first limiting opening 313c, and the end portion of the second clamping portion can be screwed into the second limiting opening 313 d. At this time, the end of the first clamping portion 323 can be screwed into the first limiting opening 313c and the end of the second clamping portion 324 can be screwed into the second limiting opening 313d by rotating the second component 320, so that the first clamping portion 323 and the second clamping portion 324 can be clamped, and the assembly is facilitated.

In one embodiment, as shown in fig. 4 and 8, a first stopping portion 313e is disposed in the first position-limiting opening 313c, a second stopping portion 313f is disposed in the second position-limiting opening 313d, the first stopping portion 313e is disposed at the left end of the first position-limiting opening 313c, the second stopping portion 313f and the first stopping portion 313e are symmetrically disposed with respect to the axis of the adjusting member 400 as the symmetry axis, and the end of the first engaging portion 323 and the end of the second engaging portion 324 are both arc-shaped. After the first clamping portion 323 is screwed into the first limiting opening 313c, the end of the first clamping portion 323 can be limited by the first retaining portion 313e, and the end of the second clamping portion 324 can be limited by the second retaining portion 313f, so that the first component 310 is prevented from being oversteered or being subjected to relative displacement again after being assembled relative to the second component 320, the first component 310 and the second component 320 can be accurately assembled, and the stability in use is good. Meanwhile, the ends of the first clamping portion 323 and the second clamping portion 324 are arc-shaped to prevent the ends of the first clamping portion 323 and the second clamping portion 324 from abutting against the second component 320 when the first component 310 is screwed into the second component 320.

Optionally, the adjusting member 400 is provided with anti-slip stripes on the outer side surface.

In other embodiments, the first component 310 and the second component 320 may also be detachably connected by other structures, for example, the second component 320 is provided with an assembly hole and a bayonet, one end of the bayonet is disposed on the outer surface of the second component 320, the other end of the bayonet is communicated with the assembly hole, the first component 310 is provided with a convex pillar, the convex pillar is provided with a resilient tab, one end of the resilient tab is connected with the convex pillar, the other end of the resilient tab is provided with a buckle body and is spaced from the convex pillar, and the buckle body can be clamped into the bayonet. The convex column can be inserted into the assembling hole, the buckle body is clamped into the bayonet to realize the clamping connection of the first separated piece 310 and the second separated piece 320, the buckle body is pressed to enable the buckle body to exit the bayonet to realize the separation of the first separated piece 310 and the second separated piece 320, and at the moment, the detachable connection of the first separated piece 310 and the second separated piece 320 can also be realized.

In one embodiment, as shown in fig. 1 and 9, the end of the bending part 110 is provided with an outlet 111 communicating with the injection passage, and the outlet 111 is disposed toward a bending direction away from the bending part 110. Since the portion closer to the inner region is more complicated, the difficulty of the end portion of the bending portion 110 approaching the inner region is greater, and by disposing the outlet 111 on the side away from the bending direction of the bending portion 110, the bending portion 110 can be extended to the outside of the inner region first, and then the inner region can be injected and filled by using the outlet 111, so that the difficulty of operation can be reduced, and a filling effect can be provided.

Optionally, the adjusting member 400 is provided with scale marks at intervals along the circumferential direction, the scale marks are used for being arranged corresponding to the moving distance of the bending portion 110 relative to the sleeve 200, the base 300 is provided with a reference line, the extending or retracting distance of the bending portion 110 can be known through the scale marks, and the extending distance of the bending portion 110 relative to the previous operation can also be known through the reference line, so that the extending distance of the bending portion 110 can be controlled more accurately.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a filler syringe, its characterized in that, includes core pipe, sleeve pipe, base and regulating part, the sleeve pipe with pedestal connection, be equipped with the injection passageway that sets up along the axial in the core pipe, the core pipe includes flexion, intermediate part and cooperation portion, the sleeve pipe cover is located the flexion reaches outside the intermediate part, the regulating part is rotatable to be located on the base, the regulating part with cooperation portion transmission cooperation, the rotation of regulating part can drive cooperation portion translation makes the core pipe stretches out or retracts the sleeve pipe, the material of flexion is shape memory material, works as the flexion by when the sleeve pipe stretches out, the flexion can the automatic bending.

2. The filler injector of claim 1, wherein the engagement portion extends through and threadably engages the adjustment member, and wherein the base includes a first body member and a second body member that are removably coupled, the first body member and the second body member defining a mounting opening, the adjustment member being positioned within the mounting opening, the sleeve being coupled to the first body member, and the core tube extending through the first body member, the adjustment member, and the second body member in sequence.

3. The filler syringe of claim 2, wherein the first component has a through hole, the core tube is inserted into the through hole, a guide protrusion is provided in the through hole, and the engaging portion has a guide groove matching the guide protrusion.

4. The filler injector according to claim 2, wherein a groove is formed in a side surface of the adjusting member, which is close to the second component member, an annular structure is formed in an inner wall of the groove along the circumferential direction, a limiting portion for extending into the groove is formed in the second component member, and a sliding groove in sliding fit with the annular structure is formed in an outer side surface of the limiting portion.

5. The filler injector of claim 2, wherein the sleeve includes a sleeve portion and an adjustment portion connected to each other, the sleeve portion being disposed over the bend portion and the intermediate portion, the adjustment portion being connected to the first component, the adjustment portion being movable relative to the first component.

6. The filler syringe of claim 5, wherein an end of the first body member distal from the second body member defines a protrusion, and the adjustment portion is disposed over the protrusion and threadedly engaged with the protrusion.

7. The filler injector of claim 2, wherein the thickness of the first component is smaller than the outer diameter of the adjusting member, the first component is provided with an abdicating groove for placing the adjusting member, and the fitting portion penetrates through the bottom surface of the abdicating groove.

8. The filler injector of claim 7, wherein the relief groove comprises a first groove section and a second groove section sequentially arranged along an axial direction of the mating portion, the inner diameter of the first groove section is matched with the outer diameter of the adjusting piece, the inner diameter of the first groove section is smaller than the inner diameter of the second groove section, the matching part is arranged on the bottom surface of the first groove section in a penetrating way, the two opposite side walls in the second groove section are respectively provided with a first limiting opening and a second limiting opening, the second split part is provided with a first clamping part and a second clamping part which are used for extending into the second groove section, the end part of the first clamping part bends towards the direction far away from the second clamping part, the end part of the second clamping part bends towards the direction far away from the first clamping part, the end part of the first clamping part can be screwed into the first limiting port, and the end part of the second clamping part can be screwed into the second limiting port.

9. The filler syringe of claim 8, wherein a first stopper is disposed in the first stopper opening, a second stopper is disposed in the second stopper opening, the first stopper is disposed at a left end of the first stopper opening, the second stopper and the first stopper are symmetrically disposed about an axis of the adjusting member, and an end of the first engaging portion and an end of the second engaging portion are both arc-shaped.

10. Filler injector according to any of claims 1-9, characterized in that the end of the bend is provided with an outlet communicating with the injection channel, which outlet is arranged towards the direction of the bend away from the bend.