CN111282088A

CN111282088A - Accurate autologous fat filling device capable of finely adjusting and quantifying

Info

Publication number: CN111282088A
Application number: CN202010133328.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Luo Dequn
Current assignee: Hangzhou Lizhi Medical Technology Co ltd Hexing Road Medical Beauty Clinic
Priority date: 2020-03-01
Filing date: 2020-03-01
Publication date: 2020-06-16
Anticipated expiration: 2040-03-01
Also published as: CN111282088B

Abstract

The invention relates to the technical field of fat transplantation, and particularly discloses an accurate and quantifiable autologous fat filling device capable of fine adjustment, which comprises a needle tube, wherein a piston is arranged in the needle tube, and an ear part at the upper end of the needle tube is fixedly connected with a mounting seat; be equipped with first gear installation cavity in the mount pad, be equipped with first screw rod in the first gear installation cavity, be equipped with the actuating mechanism who is used for driving the vertical downstream of first screw rod in the mount pad, the last gear that is equipped with of actuating mechanism, lie in the other rack installation cavity that is equipped with of gear in the mount pad, be equipped with slidable in the rack installation cavity and with the first rack of gear engaged with, be equipped with the first spring that is located first rack lower extreme in the rack installation cavity. The invention enables medical personnel to accurately control the accurate self-body fat filling device capable of finely adjusting and quantifying, so that the fat injection is more accurate, and the survival rate of the fat in the fat transplantation operation is better improved.

Description

Accurate autologous fat filling device capable of finely adjusting and quantifying

Technical Field

The invention relates to the technical field of fat transplantation, in particular to an accurate and quantifiable autologous fat filling device capable of fine adjustment.

Background

The method comprises the steps of sucking redundant subcutaneous fat cells from certain parts of a human body by autologous fat, purifying the sucked mixture, injecting a medicament to obtain composite fat particles, and transplanting the whole particle fat cells to parts needing fat filling, such as breasts, faces and the like, by an injection mode to treat flat breasts, asymmetrical breasts on two sides, superficial fine wrinkles, thin lips and thick lips. The autologous fat transplantation is carried out by using autologous fat particles, is used as autologous tissues, has biological characteristics far superior to those of any prosthesis materials, is non-toxic and harmless to the autologous tissues, and does not generate immune reaction and rejection reaction; there are many methods for extracting fat, mainly using moist vacuum liposuction with less wound and less complication, and the incision of liposuction is usually about 3-5mm, so the scar is very small after healing and is located in the hidden part (such as umbilical region, hip line, etc.). The weight-losing and slimming pillow can play a role in losing weight and slimming and shaping a beautiful curve for people with more accumulated local fat, and can be said to reshape the three-dimensional.

Patent document with application number CN201821285858.7 discloses an ARC fat transplantation syringe, include cylinder, piston rod, connecting pipe, prevent hindering piece and needle tubing, the cavity wall of piston slip laminating cylinder, the one end and the piston connection of piston rod, the bottom side wall of cylinder be provided with rather than the coupling of cavity intercommunication, the one end of connecting pipe be connected with the bottom of cylinder and rather than the cavity intercommunication. Although this the utility model discloses a propelling movement is carried out gradually to the screw rod, guarantees the packing effect of packing the position, but need rotate the removal that the piston rod realized the piston rod when actual use, can have awkward shortcoming.

Disclosure of Invention

Aiming at the defect that the fat transplantation device in the prior art cannot perform filling more accurately, the invention provides an accurate autologous fat filling device capable of fine adjustment and quantification. It can realize carrying out the function that fat was filled comparatively accurately.

In order to solve the technical problem, the invention is solved by the following technical scheme:

an accurate and quantitative self-fat filling device capable of fine adjustment comprises a needle tube, wherein a piston matched with the inner wall of the needle tube is arranged in the needle tube, and an ear part at the upper end of the needle tube is fixedly connected with a mounting seat; be equipped with first gear installation cavity in the mount pad, be equipped with in the first gear installation cavity both ends all pass first gear installation cavity and with first gear installation cavity screw-thread fit's first screw rod, be equipped with the actuating mechanism who is used for driving the vertical downstream of first screw rod in the mount pad, the last gear that is equipped with of actuating mechanism, it is equipped with the rack installation cavity to lie in the gear side in the mount pad, be equipped with slidable in the rack installation cavity and with gear engaged with first rack, be equipped with in the mount pad with the communicating mount pad opening of rack installation cavity, it stretches out mount pad open-ended shifting block to be equipped with the tip on the first rack, be equipped with the first spring that is located first rack lower extreme in the rack installation cavity.

Through the arrangement of the needle tube, the screw rod, the driving mechanism and the first spring, the screw rod can be rotated by pressing the first rack, so that the movement of a piston in the needle tube is realized, the fat injection is realized more conveniently, and meanwhile, when the fat is injected, medical personnel can control the accurate self-fat filling device capable of finely adjusting and quantifying more accurately, so that the fat injection is more accurate, and the survival rate of the fat in the fat transplantation operation is better improved; when actual use, medical personnel can also control the injection volume of fat through pressing down different strokes to comparatively convenient realization is to the control of fat injection volume.

Preferably, the first screw is provided with a plurality of first sliding grooves arranged along the length direction of the first screw, the driving mechanism comprises a first bevel gear which is positioned in the first gear mounting cavity and arranged on the first screw, and the first bevel gear is provided with a first convex block matched with the first sliding grooves; a rotatable first rotating shaft is arranged in the first gear mounting cavity, and a second bevel gear matched with the first bevel gear is arranged on the first rotating shaft; a second gear installation cavity is arranged in the installation seat and located beside the first gear installation cavity, the end part of the first rotating shaft penetrates through the second gear installation cavity, a rotating disc located in the second gear installation cavity is arranged on the first rotating shaft, a rotatable lantern ring is arranged on the rotating disc, a second rack meshed with the gear is arranged on the lantern ring, ratchet teeth are arranged on the lantern ring, a first stopping mechanism matched with the ratchet teeth is arranged on the rotating disc, the first stopping mechanism comprises a first stopping claw hinged to the rotating disc, and a second spring used for enabling the first stopping claw to abut against the ratchet teeth is arranged on the rotating disc; the first gear installation cavity is internally provided with a second rotating shaft which is positioned below the first rotating shaft and can rotate, and the gear is arranged on the second rotating shaft.

According to the invention, the first screw rod can extrude the piston more stably through the arrangement of the specific structure of the driving mechanism.

Preferably, a second screw rod installation cavity communicated with the rack installation cavity is arranged below the rack installation cavity in the installation seat, a second screw rod in threaded fit with the side wall of the second screw rod installation cavity is arranged in the second screw rod installation cavity, a plurality of second grooves are formed in the second screw rod at intervals along the length direction of the second screw rod, part of the inner wall of the second screw rod installation cavity is expanded outwards to form a third gear installation cavity, a third conical gear which is arranged in the third gear installation cavity and can slide is arranged on the second screw rod, a second convex block matched with the second groove is arranged on the third conical gear, a fourth gear installation cavity is arranged beside the third gear installation cavity in the installation seat, a rotatable third rotating shaft is arranged in the fourth gear installation cavity, and a fourth bevel gear matched with the third conical gear is arranged on the third rotating shaft.

According to the invention, through the arrangement of the second screw, the third bevel gear and the fourth bevel gear, the accurate control of the stroke of the first rack is realized, so that the accurate control of each injection amount is realized, and the survival rate of fat transplantation is effectively improved.

Preferably, the end of the third rotating shaft extends out of the mounting seat, the end of the third rotating shaft extending out of the mounting seat is fixedly connected with a knob, and scale marks arranged along the circumferential direction of the knob are arranged on the outer side wall of the mounting seat.

According to the invention, through the arrangement of the knob, the knob can be screwed to drive the third rotating shaft to rotate, so that the use of medical personnel is facilitated, and through the arrangement of the scale marks, the medical personnel can rotate the knob to different scale marks to realize the control of the injection amount, so that the control of the medical personnel on the injection amount is facilitated.

Preferably, the first rotating shaft is provided with a ratchet wheel positioned on one side of the sleeve ring, the second gear installation cavity is internally provided with a second stop mechanism matched with the ratchet wheel, the second stop mechanism comprises a second stop pawl hinged in the second gear installation cavity, and the second gear installation cavity is internally provided with a third spring for abutting the second stop pawl against the ratchet wheel.

According to the self-fat filling device, the ratchet wheel on the first rotating shaft and the second stop mechanism are arranged, so that the first rotating shaft can be further prevented from rotating along with the rotation of the lantern ring in the process that the first rack moves upwards, and the stability of the self-fat filling device capable of accurately finely adjusting and quantifying is better improved when the self-fat filling device is used.

Preferably, a first belt pulley positioned beside the ratchet wheel is arranged on the first rotating shaft, a fifth gear mounting cavity communicated with the fourth gear mounting cavity is arranged below the second gear mounting cavity on the mounting seat, a rotatable fourth rotating shaft is arranged in the fifth gear mounting cavity, a second belt pulley positioned in the fifth gear mounting cavity is arranged on the fourth rotating shaft, and a belt used for connecting the first belt pulley and the second belt pulley is arranged in the mounting seat; a sixth gear mounting cavity which is positioned beside the fourth gear mounting cavity and communicated with the fifth gear mounting cavity is arranged in the mounting seat, the end part of a third rotating shaft penetrates through the sixth gear mounting cavity, a fifth bevel gear positioned in the sixth gear mounting cavity is arranged on the third rotating shaft, and a sixth bevel gear matched with the fifth bevel gear is arranged on the fourth rotating shaft; the third rotating shaft is expanded outwards along the circumferential direction of the third rotating shaft to form octagonal lugs, and octagonal through holes matched with the octagonal lugs are formed in the fourth bevel gear and the fifth bevel gear; the mounting seat is provided with a screw hole communicated with the rack mounting cavity, and a fourth screw rod used for limiting the first rack is arranged in the screw hole.

According to the invention, through the arrangement of the first belt pulley, the second belt pulley, the belt, the fifth bevel gear, the sixth bevel gear and the octagonal projection, when in use, medical personnel can realize the control of injection amount by rotating the third rotating shaft, and can also drive the first screw to rotate reversely by rotating the third rotating shaft, so that the reset of the first screw is realized.

Preferably, the mounting seat is in threaded connection with a third screw rod matched with the second stop mechanism, one end of the third screw rod extends out of the mounting seat, the other end of the third screw rod is provided with a rotatable connecting block, and the end part of the connecting block is hinged with the end part of the second stop claw.

According to the invention, through the arrangement of the third screw and the connecting block, after the fat injection is finished, the third screw can be screwed to enable the connecting block to ascend, the connecting block drives the second stopping claw to ascend so that the second stopping claw is separated from being matched with the ratchet wheel, and at the moment, the first screw can be reset by rotating the third rotating shaft.

Preferably, the upper end and the lower end of the first gear installation cavity are respectively provided with a first installation through hole in clearance fit with the first screw rod, and the inner wall of the first installation through hole is provided with a first thread matched with the first screw rod.

According to the invention, through the arrangement of the first mounting through hole and the first thread, the first screw rod can be conveniently mounted and can stably move in the first gear mounting cavity.

Preferably, the inner wall of the upper end part of the second screw rod installation cavity and the inner wall of the middle part of the second screw rod installation cavity contract inwards to form a second installation through hole in clearance fit with the second screw rod, and a second thread matched with the second screw rod is arranged on the inner wall of the second installation through hole.

According to the invention, the second screw can be conveniently installed through the second installation through hole and the second thread, and the second screw can stably move in the second screw installation cavity.

Preferably, a supporting column mounting groove arranged along the length direction of the first rack is formed in the end face, close to the mounting seat opening, of the first rack, a supporting column is arranged in the supporting column mounting groove, a shifting block through hole in clearance fit with the supporting column is formed in the shifting block, and a fourth spring located below the shifting block is sleeved on the supporting column.

According to the invention, through the arrangement of the supporting column, the shifting block through hole and the fourth spring, when the stroke of the first rack is small, a user can still shift the shifting block for a large stroke, so that the control of medical personnel on the injection amount is facilitated, and the accuracy of fat filling of the accurate self-body fat filling device capable of finely adjusting the quantity is improved.

Drawings

Fig. 1 is a schematic structural diagram of an accurately and finely quantitative autologous fat filling device in embodiment 1.

Fig. 2 is a sectional view of the precisely fine adjustable amount of autologous fat filling device in fig. 1.

Fig. 3 is a sectional view of the precisely fine adjustable amount of autologous fat filling device of fig. 1.

Fig. 4 is a partial structural schematic view of the first screw in fig. 1.

Fig. 5 is a top view of the first bevel gear of fig. 2.

Fig. 6 is an enlarged view of a portion a in fig. 2.

Fig. 7 is a schematic structural view of the turntable and the collar in fig. 6.

Fig. 8 is a schematic structural view of the second screw in fig. 1.

Fig. 9 is a plan view of the third bevel gear of fig. 1.

Fig. 10 is an enlarged view of a portion B in fig. 3.

Fig. 11 is an enlarged view of a portion C in fig. 3.

Fig. 12 is an enlarged view of a portion D in fig. 2.

Fig. 13 is a schematic structural view of the third rotating shaft in fig. 3.

Fig. 14 is a plan view of the fourth bevel gear of fig. 1.

Fig. 15 is a sectional view of the third screw and the connecting block of fig. 1.

Fig. 16 is a schematic structural view of part E in fig. 2.

Fig. 17 is an enlarged view of portion F in fig. 3.

Fig. 18 is a schematic structural diagram of the dial block in fig. 1.

The names of the parts indicated by the numerical references in the drawings are as follows:

110. a needle tube; 120. a mounting seat; 121. an opening of the mounting seat; 122. shifting blocks; 123. a fourth screw; 130. a first screw; 140. a first rotating shaft; 150. a second rotating shaft; 160. a fourth rotating shaft; 170. a knob; 180. scale lines; 190. a third screw; 210. a piston; 220. a first gear mounting cavity; 230. a gear; 240. a first bevel gear; 250. a second bevel gear; 260. a second gear mounting cavity; 310. a rack mounting cavity; 320. a first rack; 330. a first spring; 340. a second screw mounting cavity; 350. a second screw; 360. a third bevel gear; 370. a third rotating shaft; 380. a fourth bevel gear; 390. a ratchet wheel; 3100. a fifth bevel gear; 410. a first chute; 510. a first bump; 610. a turntable; 620. a collar; 630. a first pulley; 710. a second rack; 720. ratchet teeth; 730. a first locking pawl; 740. a second spring; 810. a second groove; 910. a second bump; 1010. a third gear mounting cavity; 1020. a fourth gear mounting cavity; 1030. a sixth gear mounting cavity; 1040. a second mounting through hole; 1050. a second thread; 1110. a second locking pawl; 1120. a third spring; 1130. a screw hole; 1210. a fifth gear mounting cavity; 1220. a second pulley; 1230. a sixth bevel gear; 1310. an octagonal bump; 1410. an octagonal via hole; 1510. connecting blocks; 1610. a first mounting through hole; 1620. a first thread; 1710. a support pillar mounting groove; 1720. a support pillar; 1730. a fourth spring; 1810. the shifting block is provided with a through hole.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.

Example 1

As shown in fig. 1 to 18, the present embodiment provides an accurate and finely adjustable autologous fat filling device, which comprises a needle tube 110, a piston 210 disposed in the needle tube 110 and engaged with the inner wall of the needle tube 110, and a mounting seat 120 fixedly connected to the ear portion of the upper end of the needle tube 110; be equipped with first gear installation cavity 220 in the mount pad 120, be equipped with the first screw rod 130 that both ends all passed first gear installation cavity 220 and with first gear installation cavity 220 screw-thread fit in first gear installation cavity 220, be equipped with the actuating mechanism who is used for driving first screw rod 130 vertical downstream in the mount pad 120, the last gear 230 that is equipped with of actuating mechanism, lie in the other rack installation cavity 310 that is equipped with of gear 230 in the mount pad 120, be equipped with slidable and with the first rack 320 of gear 230 engaged with in the rack installation cavity 310, be equipped with the communicating mount pad opening 121 with rack installation cavity 310 in the mount pad 120, be equipped with the shifting block 122 that the tip stretches out mount pad opening 121 on the first rack 320, be equipped with the first spring 330 that is located the lower tip of first rack 320 in the rack installation cavity 310.

Through the arrangement of the needle tube 110, the first screw 130, the driving mechanism and the first spring 330 in this embodiment, when filling fat, the first rack 320 can be moved downward by pressing the dial 122, the driving mechanism is rotated by the engagement between the first rack 320 and the gear 230 on the driving mechanism, so as to rotate the first screw 130, and due to the threaded fit between the first screw 130 and the first gear mounting cavity 220, the first screw 130 is moved downward, so that the piston 210 is moved downward to complete the injection of fat. Compared with an ARC fat transplantation injector in a comparison document, the accurate and quantifiable autologous fat filling device can realize the rotation of the first screw 130 by pressing the first rack 320 during fat transplantation through the arrangement of the driving mechanism and the first rack 320, so that the movement of the piston 210 in the needle tube 110 is realized, the fat injection is realized more conveniently, and meanwhile, medical personnel can control the accurate and quantifiable autologous fat filling device more accurately during the fat injection, so that the fat injection is more accurate, and the survival rate of the fat in the fat transplantation operation is better improved; when actual use, medical personnel can also control the injection volume of fat through pressing down different strokes to comparatively convenient realization is to the control of fat injection volume.

In this embodiment, the first screw 130 is provided with a plurality of first sliding grooves 410 arranged along the length direction of the first screw 130, the driving mechanism includes a first bevel gear 240 located in the first gear installation cavity 220 and arranged on the first screw 130, and the first bevel gear 240 is provided with a first bump 510 matched with the first sliding groove 410; a rotatable first rotating shaft 140 is arranged in the first gear installation cavity 220, and a second bevel gear 250 matched with the first bevel gear 240 is arranged on the first rotating shaft 140; a second gear installation cavity 260 positioned beside the first gear installation cavity 220 is arranged in the installation seat 120, the end part of the first rotating shaft 140 penetrates through the second gear installation cavity 260, a rotating disc 610 positioned in the second gear installation cavity 260 is arranged on the first rotating shaft 140, a rotatable lantern ring 620 is arranged on the rotating disc 610, a second rack 710 meshed with the gear 230 is arranged on the lantern ring 620, ratchet teeth 720 are arranged on the lantern ring 620, a first stopping mechanism matched with the ratchet teeth 720 is arranged on the rotating disc 610, the first stopping mechanism comprises a first stopping claw 730 hinged on the rotating disc 610, and a second spring 740 used for enabling the first stopping claw 730 to abut against the ratchet teeth 720 is arranged on the rotating disc 610; the first gear mounting cavity 220 is provided therein with a second rotating shaft 150 which is rotatable and located below the first rotating shaft 140, and a gear 230 is provided on the second rotating shaft 150.

Through the arrangement of the specific structure of the driving mechanism in the embodiment, when the medical staff presses the dial 122, the first rack 320 moves downward along with the movement of the dial 122, and the gear 230 rotates along with the first rack 320 and the gear 230 due to the meshing between the first rack 320 and the gear 230; the collar 620 rotates with the rotation of the gear 230 due to the engagement between the gear 230 and the second rack 710 on the collar 620; due to the cooperation between the first stopping mechanism on the collar 620 and the rotating disc 610, the rotating disc 610 will rotate under the driving of the first stopping mechanism, so that the first rotating shaft 140 rotates, the second bevel gear 250 on the first rotating shaft 140 rotates along with the rotation of the first rotating shaft 140, the first bevel gear 240 will rotate along with the rotation of the second bevel gear 250 due to the engagement between the second bevel gear 250 and the first bevel gear 240, and the first screw 130 will rotate and move downwards due to the cooperation between the first projection 510 on the second bevel gear 250 and the first sliding slot 410 on the first screw 130, so that the extrusion piston 210 moves downwards to inject fat. After completing an injection, the medical staff can pull out the needle tube 110 and then release the shifting block 122, the first rack 320 will move upward under the action of the first spring 330 to reset the first rack 320, and in the moving process, due to the arrangement of the first stopping mechanism, the rotating disc 610 will not rotate, so that the movement of the first screw 130 is avoided, and the first screw can extrude the piston 210 more stably.

In this embodiment, a second screw mounting cavity 340 communicating with the rack mounting cavity 310 is disposed below the rack mounting cavity 310 in the mounting base 120, a second screw 350 in threaded fit with a side wall of the second screw mounting cavity 340 is disposed in the second screw mounting cavity 340, a plurality of second grooves 810 are disposed on the second screw 350 at intervals along a length direction of the second screw 350, a part of an inner wall of the second screw mounting cavity 340 is outwardly expanded to form a third gear mounting cavity 1010, a third bevel gear 360 which is disposed in the third gear mounting cavity 1010 and can slide is disposed on the second screw 350, a second bump 910 which is matched with the second groove 810 is disposed on the third bevel gear 360, a fourth gear mounting cavity 1020 is disposed beside the third gear mounting cavity 1010 in the mounting base 120, a rotatable third rotating shaft 370 is disposed in the fourth gear mounting cavity 1020, and a fourth bevel gear 380 which is matched with the third bevel gear 360 is disposed on the third rotating shaft 370.

Through the arrangement of the second screw 350, the third bevel gear 360 and the fourth bevel gear 380 in this embodiment, before the pushing block 122 is pressed, the medical staff can rotate the third rotating shaft 370, and realize the rotation of the third bevel gear 360 through the engagement between the fourth bevel gear 380 and the third bevel gear 360, because of the cooperation between the second projection 910 on the third bevel gear 360 and the second sliding groove 810 on the second screw 350, the second screw 350 will rotate, and because of the threaded cooperation between the second screw 350 and the second screw mounting cavity 340, the second screw 350 will move in the vertical direction; after adjusting the position of second screw 350, medical personnel can stir shifting block 122 and realize the removal of first rack 320, and after the bottom of first rack 320 supported and leaned on the upper end of second screw 350, first rack 320 will unable the continuation remove, has realized the accurate control to first rack 320 stroke to realized the accurate control to injection volume at every turn, comparatively effectual promotion fat transplantation's survival rate.

In this embodiment, an end of the third rotating shaft 370 extends out of the mounting seat 120, an end of the third rotating shaft 370 extending out of the mounting seat 120 is fixedly connected with a knob 170, and a scale line 180 arranged along a circumferential direction of the knob 170 is disposed on an outer side wall of the mounting seat 120.

Through the setting of knob 170 in this embodiment, can drive third pivot 370 through twisting knob 170 and rotate to made things convenient for medical personnel to use, through the setting of scale mark 180, make medical personnel can rotate knob 170 to different scale marks 180 department and realize the control to the injection volume, thereby made things convenient for medical personnel to the control of injection volume.

In this embodiment, the first rotating shaft 140 is provided with a ratchet gear 390 at one side of the ring 620, the second gear installation cavity 260 is provided with a second stopping mechanism for cooperating with the ratchet gear 390, the second stopping mechanism includes a second stopping pawl 1110 hinged in the second gear installation cavity 260, and the second gear installation cavity 260 is provided with a third spring 1120 for abutting the second stopping pawl 1110 against the ratchet gear 390.

Through the arrangement of the ratchet 390 on the first rotating shaft 140 and the second stopping mechanism in this embodiment, the rotation of the first rotating shaft 140 along with the rotation of the collar 610 during the upward movement of the first rack 320 can be further prevented, so as to better improve the stability of the accurate self-fat filling device capable of finely adjusting the amount.

In this embodiment, a first belt pulley 630 located beside the ratchet 390 is disposed on the first rotating shaft 140, a fifth gear installation cavity 1210 communicated with the fourth gear installation cavity 1020 is disposed below the second gear installation cavity 260 on the installation base 120, a rotatable fourth rotating shaft 160 is disposed in the fifth gear installation cavity 1210, a second belt pulley 1220 located in the fifth gear installation cavity 1210 is disposed on the fourth rotating shaft 160, and a belt 640 for connecting the first belt pulley 630 and the second belt pulley 1220 is disposed in the installation base 120; a sixth gear installation cavity 1030 which is positioned beside the fourth gear installation cavity 1020 and communicated with the fifth gear installation cavity 1210 is arranged in the installation seat 120, the end part of the third rotating shaft 370 penetrates through the sixth gear installation cavity 1030, a fifth bevel gear 3100 which is positioned in the sixth gear installation cavity 1030 is arranged on the third rotating shaft 370, and a sixth bevel gear 1230 which is matched with the fifth bevel gear 3100 is arranged on the fourth rotating shaft 160; the third rotating shaft 370 is expanded outwards along the circumferential direction to form an octagonal lug 1310, and octagonal through holes 1410 matched with the octagonal lug are formed in the fourth bevel gear 380 and the fifth bevel gear 3100; the mounting base 120 is provided with a screw hole 1130 communicating with the rack mounting cavity 310, and the screw hole 1130 is provided with a fourth screw 123 for limiting the first rack 320.

Through the arrangement of the first pulley 630, the second pulley 1220, the belt 640, the fifth bevel gear 3100, the sixth bevel gear 1030 and the octagonal projection 1310 in the present embodiment, when performing an injection, a medical staff can press the third rotating shaft 370 towards the fourth bevel gear 380, so that the octagonal projection 1310 on the third rotating shaft 370 is matched with the octagonal through hole 1410 on the fourth bevel gear 380, and the octagonal projection 1310 on the third rotating shaft 370 is not matched with the octagonal through hole 1410 on the fifth bevel gear 3100, so that when rotating the third rotating shaft 370, the fifth bevel gear 3100 does not rotate along with the rotation of the third rotating shaft 370. After the fat injection is completed, the fourth screw 123 in the rotatable screw hole 1130 causes the lower end portion of the fourth screw 123 to be raised, the first rack 320 is gradually raised by the first spring 330, the third rotating shaft 370 is pulled toward the fifth bevel gear 3100 side as the first rack 320 is disengaged from the gear 230, the octagonal projection 1310 on the third rotating shaft 370 is disengaged from the octagonal through hole 1410 on the fourth bevel gear 380, the third rotating shaft 370 is continuously pulled until the octagonal projection 1310 on the third rotating shaft 370 is engaged with the octagonal through hole 1410 on the fifth bevel gear 3100, after the engagement between the third rotating shaft 370 and the fifth bevel gear 3100 is completed, the engagement between the second stopper and the ratchet gear 390 is released, the third rotating shaft 370 is rotated, the fourth rotating shaft 160 is rotated by the engagement between the fifth bevel gear 3100 and the sixth bevel gear 1230, the engagement between the second pulley 1220 on the fourth rotating shaft 160 and the first pulley 630 on the first rotating shaft 140 is released, the first rotating shaft 140 is rotated to raise the first screw 130. Through the cooperation between the third rotating shaft 370 and the fourth bevel gear 380 and the fifth bevel gear 3100 in this embodiment, when in use, the medical staff can not only control the injection amount by rotating the third rotating shaft 370, but also drive the first screw 130 to rotate in the opposite direction by rotating the third rotating shaft 370, thereby resetting the first screw 130.

In this embodiment, the mounting base 120 is threadedly connected with a third screw 190 that is engaged with the second locking mechanism, one end of the third screw 190 extends out of the mounting base 120, the other end of the third screw 190 is provided with a rotatable connecting block 1510, and the end of the connecting block 1510 is hinged to the end of the second locking pawl 1110.

Through the arrangement of the third screw 190 and the connection block 1510 in this embodiment, after the fat injection is completed, the third screw 190 is screwed, so that the connection block 1510 rises, the connection block 1510 drives the second stopping claw to rise, so that the second stopping claw is disengaged from the ratchet 190, and at this time, the first screw 130 can be reset by rotating the third rotating shaft 370.

In this embodiment, the upper and lower ends of the first gear mounting cavity 220 are respectively provided with a first mounting through hole 1610 which is in clearance fit with the first screw 130, and the inner wall of the first mounting through hole 1610 is provided with a first thread 1620 which is in fit with the first screw 130.

Through the arrangement of the first mounting through hole 1610 and the first thread 1620 in this embodiment, the first screw 130 can be mounted more conveniently and the first screw 130 can move in the first gear mounting cavity 220 more stably.

In this embodiment, the inner wall of the upper end portion and the inner wall of the middle portion of the second screw rod installation cavity 340 are inwardly contracted to form a second installation through hole 1040 in clearance fit with the second screw rod 350, and the inner wall of the second installation through hole 1040 is provided with a second thread 1050 in fit with the second screw rod 350.

Through the arrangement of the second mounting through hole 1040 and the second thread 1050 in this embodiment, the second screw 350 can be conveniently mounted, and the second screw 350 can stably move in the second screw mounting cavity 340.

In this embodiment, a supporting pillar mounting groove 1710 arranged along the length direction of the first rack 320 is arranged on the end surface of the first rack 320 close to the mounting seat opening 121, a supporting pillar 1720 is arranged in the supporting pillar mounting groove 1710, a shifting block through hole 1810 in clearance fit with the supporting pillar 1720 is arranged on the shifting block 122, and a fourth spring 1730 located below the shifting block 122 is sleeved on the supporting pillar 1720.

Through the arrangement of the supporting column 1720, the shifting block through hole 1810 and the fourth spring 1730 in the embodiment, when the medical staff uses the medical staff, the shifting block 122 is shifted to enable the shifting block 122 to move on the supporting column 1720, when the pressure on the shifting block 122 is larger than the elastic force of the first spring 330, the first rack 320 moves downwards, and the shifting block 122 is continuously pressed downwards until the bottom end of the first rack 320 contacts with the upper end of the second screw 350. Through the portable setting of shifting block 122 in this embodiment for when the stroke of first rack 320 is less, the user still can stir great stroke with shifting block 122, thereby has been convenient for medical personnel to the control of injection volume, thereby has promoted this accurate autologous fat filling device that can finely tune the ration and is carrying out the accurate nature that the fat was filled.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims

1. Accurate quantitative autologous fat filling device of finely tuning, its characterized in that: comprises a needle tube (110), a piston (210) matched with the inner wall of the needle tube (110) is arranged in the needle tube (110), and an ear part at the upper end of the needle tube (110) is fixedly connected with a mounting seat (120); be equipped with first gear installation cavity (220) in mount pad (120), be equipped with both ends in first gear installation cavity (220) and all pass first gear installation cavity (220) and with first gear installation cavity (220) screw-thread fit's first screw rod (130), be equipped with the actuating mechanism who is used for driving first screw rod (130) vertical downstream in mount pad (120), the last gear (230) that is equipped with of actuating mechanism, it is equipped with rack installation cavity (310) to lie in gear (230) side in mount pad (120), be equipped with slidable in rack installation cavity (310) and with gear (230) engaged with first rack (320), be equipped with in mount pad (120) with rack installation cavity (310) communicating mount pad opening (121), be equipped with shifting block (122) that the tip stretches out mount pad opening (121) on first rack (320), be equipped with first spring (330) that are located first rack (320) lower extreme in rack installation cavity (310).

2. The apparatus according to claim 1, wherein: the first screw (130) is provided with a plurality of first sliding grooves (410) arranged along the length direction of the first screw (130), the driving mechanism comprises a first bevel gear (240) which is positioned in the first gear mounting cavity (220) and arranged on the first screw (130), and the first bevel gear (240) is provided with a first convex block (510) matched with the first sliding grooves (410); a rotatable first rotating shaft (140) is arranged in the first gear mounting cavity (220), and a second bevel gear (250) matched with the first bevel gear (240) is arranged on the first rotating shaft (140); a second gear installation cavity (260) located beside the first gear installation cavity (220) is arranged in the installation seat (120), the end part of the first rotating shaft (140) penetrates through the second gear installation cavity (260), a rotating disc (610) located in the second gear installation cavity (260) is arranged on the first rotating shaft (140), a rotatable lantern ring (620) is arranged on the rotating disc (610), a second rack (710) meshed with the gear (230) is arranged on the lantern ring (620), ratchet teeth (720) are arranged on the lantern ring (620), a first stopping mechanism matched with the ratchet teeth (720) is arranged on the rotating disc (610), the first stopping mechanism comprises a first stopping claw (730) hinged to the rotating disc (610), and a second spring (740) used for enabling the first stopping claw (730) to abut against the ratchet teeth (720) is arranged on the rotating disc (610); a second rotating shaft (150) which is positioned below the first rotating shaft (140) and can rotate is arranged in the first gear installation cavity (220), and the gear (230) is arranged on the second rotating shaft (150).

3. The apparatus according to claim 1, wherein: a second screw rod installation cavity (340) communicated with the rack installation cavity (310) is arranged below the rack installation cavity (310) in the installation seat (120), a second screw rod (350) in threaded fit with the side wall of the second screw rod installation cavity (340) is arranged in the second screw rod installation cavity (340), a plurality of second grooves (810) are arranged on the second screw rod (350) at intervals along the length direction of the second screw rod (350), part of the inner wall of the second screw rod installation cavity (340) is outwards expanded to form a third gear installation cavity (1010), a third bevel gear (360) which is arranged in the third gear installation cavity (1010) and can slide is arranged on the second screw rod (350), a second convex block (910) matched with the second groove (810) is arranged on the third bevel gear (360), a fourth gear installation cavity (1020) is arranged beside the third gear installation cavity (1010) in the installation seat (120), and a rotatable third rotating shaft (370) is arranged in the fourth gear installation cavity (1020), a fourth bevel gear (380) matched with the third bevel gear (360) is arranged on the third rotating shaft (370).

4. The apparatus according to claim 3, wherein: the end part of the third rotating shaft (370) extends out of the mounting seat (120), the end part of the third rotating shaft (370) extending out of the mounting seat (120) is fixedly connected with a knob (170), and the outer side wall of the mounting seat (120) is provided with scale marks (180) which are arranged along the circumferential direction of the knob (170).

5. The apparatus according to claim 2, wherein: the first rotating shaft (140) is provided with a ratchet wheel (390) positioned on one side of the sleeve ring (620), a second stopping mechanism matched with the ratchet wheel (390) is arranged in the second gear installation cavity (260), the second stopping mechanism comprises a second stopping claw (1110) hinged in the second gear installation cavity (260), and a third spring (1120) used for enabling the second stopping claw (1110) to abut against the ratchet wheel (390) is arranged in the second gear installation cavity (260).

6. The apparatus according to claim 3, wherein: a first belt pulley (630) located beside the ratchet wheel (390) is arranged on the first rotating shaft (140), a fifth gear installation cavity (1210) communicated with the fourth gear installation cavity (1020) is arranged below the second gear installation cavity (260) on the installation seat (120), a rotatable fourth rotating shaft (160) is arranged in the fifth gear installation cavity (1210), a second belt pulley (1220) located in the fifth gear installation cavity (1210) is arranged on the fourth rotating shaft (160), and a belt (640) used for connecting the first belt pulley (630) and the second belt pulley (1220) is arranged in the installation seat (120); a sixth gear installation cavity (1030) which is located beside the fourth gear installation cavity (1020) and communicated with the fifth gear installation cavity (1210) is arranged in the installation seat (120), the end part of the third rotating shaft (370) penetrates through the sixth gear installation cavity (1030), a fifth bevel gear (3100) located in the sixth gear installation cavity (1030) is arranged on the third rotating shaft (370), and a sixth bevel gear (1230) matched with the fifth bevel gear (3100) is arranged on the fourth rotating shaft (160); the third rotating shaft (370) is expanded outwards along the circumferential direction to form an octagonal lug (1310), and octagonal through holes (1410) matched with the octagonal lug are formed in the fourth bevel gear (380) and the fifth bevel gear (3100); be equipped with on mount pad (120) with the communicating screw (1130) of rack installation cavity (310), be equipped with in screw (1130) and be used for carrying on spacing fourth screw rod (123) to first rack (320).

7. The apparatus according to claim 5, wherein: the mounting seat (120) is connected with a third screw rod (190) matched with a second stop mechanism in a threaded mode, one end of the third screw rod (190) extends out of the mounting seat (120), the other end of the third screw rod (190) is provided with a rotatable connecting block (1510), and the end portion of the connecting block (1510) is hinged to the end portion of the second stop claw (1110).

8. The apparatus according to claim 1, wherein: the upper end and the lower end of the first gear installation cavity (220) are respectively provided with a first installation through hole (1610) in clearance fit with the first screw rod (130), and the inner wall of the first installation through hole (1610) is provided with a first thread (1620) matched with the first screw rod (130).

9. The apparatus according to claim 1, wherein: the inner wall of the upper end part and the inner wall of the middle part of the second screw rod installation cavity (340) contract inwards to form a second installation through hole (1040) in clearance fit with the second screw rod (350), and a second thread (1050) matched with the second screw rod (350) is arranged on the inner wall of the second installation through hole (1040).

10. The apparatus according to claim 1, wherein: be equipped with on the terminal surface that is close to mount pad opening (121) on first rack (320) along support column mounting groove (1710) that first rack (320) length direction set up, be equipped with support column (1720) in support column mounting groove (1710), be equipped with on shifting block (122) with support column (1720) clearance fit's shifting block through-hole (1810), cup jointed fourth spring (1730) that are located shifting block (122) below on support column (1720).