CN111249580B - High-precision pressure propeller for autologous fat - Google Patents
High-precision pressure propeller for autologous fat Download PDFInfo
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- CN111249580B CN111249580B CN202010133324.8A CN202010133324A CN111249580B CN 111249580 B CN111249580 B CN 111249580B CN 202010133324 A CN202010133324 A CN 202010133324A CN 111249580 B CN111249580 B CN 111249580B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3129—Syringe barrels
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2026—Semi-automatic, e.g. user activated piston is assisted by additional source of energy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3125—Details specific display means, e.g. to indicate dose setting
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Abstract
The invention relates to the technical field of fat transplantation, and particularly discloses a high-precision pressure propeller for autologous fat, which comprises a needle tube and a mounting seat, wherein a screw rod is arranged on the mounting seat; a driving mechanism for driving the screw rod to vertically move downwards is arranged in the mounting seat, the driving mechanism comprises a gear, and a first rack meshed with the gear is arranged in the mounting seat; a first rotating shaft is arranged in the mounting seat, a first bevel gear is arranged on the first rotating shaft, a screw rod is further arranged in the mounting seat, a second bevel gear matched with the first bevel gear is arranged on the screw rod, and a sliding block capable of sliding is further arranged on the screw rod; the lower end of the first rack is provided with a rack bump, and the sliding block is connected with a supporting rod matched with the rack bump. The invention not only avoids the poor fat transplantation effect caused by insufficient fat injection amount, but also avoids the fat death caused by overlarge fat injection amount, thereby improving the fat injection effect.
Description
Technical Field
The invention relates to the technical field of fat transplantation, in particular to a high-precision pressure propeller for autologous fat.
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 the utility model discloses a progressively carry out the propelling movement through the screw rod, guarantee the packing effect of packing the position, can't be accurate when actual use control single injection volume.
Disclosure of Invention
Aiming at the defect that the common fat injection device in the prior art cannot control the single fat injection amount, the invention provides a high-precision pressure propeller for autologous fat. It can realize carrying out comparatively accurate control to single fat injection volume to promote the function of fat cell survival rate in the fat transplantation operation.
In order to solve the technical problem, the invention is solved by the following technical scheme:
a high-precision pressure propeller for autologous fat comprises a mounting seat fixedly connected with a needle tube, wherein a piston is arranged in the inner wall of the needle tube, and a first screw rod with the lower end abutting against the piston is in threaded connection in the mounting seat; a driving mechanism used for driving the first screw rod to vertically move downwards is arranged in the mounting seat, the driving mechanism comprises a gear, a rack mounting cavity is arranged beside the gear in the mounting seat, a first rack which can slide and is meshed with the gear is arranged in the rack mounting cavity, a mounting seat opening communicated with the rack mounting cavity is arranged on the side wall of the mounting seat, a shifting block of which the end part extends out of the mounting seat opening is arranged on the first rack, and a first spring positioned at the lower end part of the first rack is arranged in the rack mounting cavity; a first gear installation cavity is arranged in the installation seat, a first rotating shaft which can rotate and is horizontally arranged is arranged in the first gear installation cavity, a first bevel gear is arranged on the first rotating shaft, a lead screw installation cavity which is used for being communicated with the first gear installation cavity is arranged below the first gear installation cavity, a lead screw which can rotate and is vertically arranged is arranged in the lead screw installation cavity, a second bevel gear which is matched with the first bevel gear is arranged on the lead screw, and a sliding block which can slide is also arranged on the lead screw; the screw rod installation cavity is communicated with the rack installation cavity, a rack bump is arranged at the lower end of the first rack, and a support rod matched with the rack bump is connected to the sliding block.
Through the arrangement of the gear, the first rack, the first rotating shaft, the first bevel gear, the screw rod and the second bevel gear, the limit of the first rack can be completed relatively simply and conveniently, the control of fat injection amount is also completed, the fat injection accuracy is improved, the poor fat transplantation effect caused by insufficient fat injection amount is avoided, the fat death caused by overlarge fat injection amount is also avoided, and the fat injection effect is improved. In the actual operation process, medical personnel can adjust the first rotating shaft at any time to control the single injection amount of fat.
Preferably, a second gear installation cavity arranged along the length direction of the first screw is arranged in the installation seat, the driving mechanism comprises a third bevel gear arranged in the second gear installation cavity and in clearance fit with the first screw, a plurality of sliding grooves arranged along the length direction of the first screw are formed in the first screw, and a plurality of bevel gear convex blocks matched with the sliding grooves are formed in the third bevel gear; a third gear installation cavity is arranged in the installation seat and is positioned between the first gear installation cavity and the second gear installation cavity, the third gear installation cavity is communicated with the second gear installation cavity, a rotatable second rotating shaft with the end part extending into the second gear installation cavity is arranged in the third gear installation cavity, and a fourth bevel gear which is positioned in the second gear installation cavity and is meshed with the third bevel gear is arranged on the second rotating shaft; a rotary table positioned on the second rotating shaft is arranged in the third gear installation cavity, a rotatable lantern ring is arranged on the rotary table, 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 rotary table, the first stopping mechanism comprises a first stopping claw hinged on the rotary table, and a second spring used for enabling the first stopping claw to abut against the ratchet teeth is arranged on the rotary table; a third rotating shaft which is rotatable and positioned below the second rotating shaft is arranged in the third gear installation cavity, and the gear is arranged on the third 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 fourth gear installation cavity is formed in the installation seat and located between the third gear installation cavity and the first gear installation cavity, the fourth gear installation cavity is communicated with the third gear installation cavity, the end portion of the second rotating shaft extends into the fourth gear installation cavity, a ratchet wheel located on the second rotating shaft is arranged in the fourth gear installation cavity, a second stopping mechanism matched with the ratchet wheel is arranged at the upper end portion of the fourth gear installation cavity and comprises a second stopping claw hinged to the inner wall of the fourth gear installation cavity, and a third spring used for enabling the second stopping claw to abut against the ratchet wheel is arranged in the fourth gear installation cavity.
According to the invention, the stability of the high-precision pressure propeller for autologous fat in use can be further improved by arranging the ratchet wheel and the second stop mechanism.
Preferably, the center of the ratchet wheel is inwards sunken to form a plurality of ratchet wheel grooves, a sliding shaft installation cavity is arranged at the end part, close to the ratchet wheel, in the second rotating shaft, a sliding shaft is arranged in the sliding shaft installation cavity, a plurality of rotating shaft openings communicated with the sliding shaft installation cavity are arranged on the side wall of the second rotating shaft, and a sliding shaft lug is arranged on the sliding shaft, the end part of the sliding shaft lug extends out of the rotating shaft opening and is matched with the ratchet wheel grooves; a fourth spring used for pushing the sliding shaft lug into the ratchet groove is arranged in the sliding shaft mounting cavity; the end part of the fourth gear installation cavity is communicated with the first gear installation cavity, the end part of the second rotating shaft, which is close to the first rotating shaft, is provided with a rotating shaft through hole communicated with the sliding shaft installation cavity, and the sliding shaft is provided with a supporting column of which the end part penetrates through the rotating shaft through hole; the center of the first bevel gear is inwards sunken to form an octagonal through hole, and a first polygonal bump matched with the octagonal through hole is arranged on the first rotating shaft; the upper end of mount pad is equipped with the communicating screw with rack installation cavity, is equipped with in the screw to be used for carrying on spacing second screw rod to first rack.
According to the invention, the sliding shaft lug and the ratchet wheel groove are arranged, so that medical personnel can conveniently reset the first screw rod.
Preferably, the end surface of the second rotating shaft close to the first rotating shaft is recessed inwards to form a rotating shaft groove, and the end part of the first rotating shaft close to the rotating shaft groove is provided with a second polygonal convex block matched with the rotating shaft groove.
According to the medical screw resetting device, the rotating shaft groove and the second polygonal bump are arranged, so that medical personnel can reset the first screw rod by rotating the first rotating shaft, and the first screw rod is further conveniently reset.
Preferably, the number of the ratchet wheel grooves is 8, the ratchet wheel grooves are evenly distributed along the circumferential direction of the ratchet wheel, and in match, the number of the rotating shaft openings is 8.
According to the invention, through the arrangement of the number of the ratchet wheel grooves and the number of the rotating shaft openings, the sliding shaft lug can be easily inserted into the ratchet wheel grooves, so that the stability of the high-precision pressure propeller for autologous fat in use is better improved.
Preferably, the side walls of both ends of the ratchet recess are recessed toward one side to form a first inclined surface, and the side walls of both ends of the sliding shaft protrusion are recessed inward to form a second inclined surface.
According to the invention, through the arrangement of the first inclined surface and the second inclined surface, the sliding shaft bump can be easily inserted into the ratchet wheel groove, and the stability of the high-precision pressure propeller for autologous fat in use is better improved.
Preferably, the side wall of the opening of the groove of the rotating shaft is recessed inwards to form a third inclined surface, and the end part of the second polygonal convex block is recessed towards the center along the circumferential direction to form a fourth inclined surface.
According to the invention, the second polygonal bump on the first rotating shaft can be easily inserted into the groove of the rotating shaft through the arrangement of the third inclined surface and the fourth inclined surface, so that the stability of the high-precision autologous fat pressure propeller in use is better improved.
Preferably, the end part of the mounting seat adjacent to the needle tube protrudes towards the inside of the needle tube to form a mounting seat protruding block, the lower end part of the second gear mounting cavity extends into the mounting seat protruding block, mounting through holes in clearance fit with the first screw rod are formed in the upper end and the lower end of the second gear mounting cavity, and threads matched with the first screw rod are formed in the inner wall of each mounting through hole.
According to the invention, through the arrangement of the mounting seat bump, the mounting seat can be prevented from shaking on the needle tube, so that the stability of the high-precision self-fat pressure propeller in use is better improved; through the arrangement of the mounting through hole and the threads, the first screw rod can move in the second gear mounting cavity stably.
Preferably, the end of the first rotating shaft extends out of the mounting seat, the end of the first 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 use of medical care personnel is facilitated; through the arrangement of the scale marks, the control of the medical staff on the injection amount is facilitated.
Drawings
Fig. 1 is a schematic structural view of a high-precision pressure propeller for autologous fat in example 1.
Fig. 2 is a sectional view of the high-precision pressure propeller for autologous fat in fig. 1.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a sectional view of the high-precision pressure propeller for autologous fat in fig. 1.
Fig. 5 is a schematic structural view of the first rack in fig. 4.
Fig. 6 is a schematic structural diagram of the slider in fig. 3.
Fig. 7 is a partial structural schematic view of the first screw in fig. 1.
Fig. 8 is a schematic structural view of the third bevel gear in fig. 3.
Fig. 9 is a schematic structural view of the turntable and the collar in fig. 3.
FIG. 10 is a schematic view of the ratchet wheel of FIG. 3.
Fig. 11 is an enlarged view of a portion B in fig. 3.
Fig. 12 is a top view of the second bevel gear of fig. 3.
Fig. 13 is a schematic structural view of the first rotating shaft in fig. 3.
Fig. 14 is a schematic structural view of the second rotating shaft in fig. 2.
Fig. 15 is an enlarged view of a portion C in fig. 2.
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 second screw; 130. a first screw; 140. a knob; 150. scale lines; 210. a piston; 220. a second gear mounting cavity; 230. a third bevel gear; 240. a third gear mounting cavity; 250. a second rotating shaft; 260. a fourth bevel gear; 270. a third rotating shaft; 280. mounting base projections; 310. a gear; 320. a first gear mounting cavity; 321. a first rotating shaft; 321a, a first bevel gear; 330. A screw rod installation cavity; 331. a screw rod; 331a, a second bevel gear; 331b, a sliding block; 340. a turntable; 350. a collar; 360. a fourth gear mounting cavity; 370. a ratchet wheel; 410. a rack mounting cavity; 420. a rack; 430. a first spring; 440. a screw hole; 510. a rack projection; 610. a support bar; 710. a chute; 810. a bevel gear projection; 910. a second rack; 920. ratchet teeth; 930. a first locking pawl; 940. a second spring; 1010. a second locking pawl; 1020. a third spring; 1030. a ratchet groove; 1040. a first inclined surface; 1110. a sliding shaft mounting cavity; 1120. a sliding shaft; 1130. the rotating shaft is opened; 1140. a sliding shaft projection; 1150. a fourth spring; 1160. a through hole of the rotating shaft; 1170. a support pillar; 1180. a rotating shaft groove; 1210. an octagonal via hole; 1310. a first polygonal bump; 1320. a second polygonal bump; 1330. a fourth inclined surface; 1410. a second inclined surface; 1420. a third inclined surface; 1430. an annular stop block; 1510. mounting a through hole; 1520. and (4) threading.
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 15, the present embodiment provides a high-precision pressure thruster for autologous fat, which comprises a mounting seat 120 for fixedly connecting with a needle tube 110, a piston 210 is arranged in the inner wall of the needle tube 110, and a first screw 130 with the lower end abutting against the piston 210 is screwed in the mounting seat 120; a driving mechanism for driving the first screw 130 to vertically move downwards is arranged in the mounting seat 120, the driving mechanism comprises a gear 310, a rack mounting cavity 410 is arranged beside the gear 310 in the mounting seat 120, a first rack 420 which can slide and is meshed with the gear 310 is arranged in the rack mounting cavity 410, a mounting seat opening 121 communicated with the rack mounting cavity 410 is arranged on the side wall of the mounting seat 120, a shifting block 122 with the end part extending out of the opening of the mounting seat 120 is arranged on the first rack 420, and a first spring 430 positioned at the lower end part of the first rack 420 is arranged in the rack mounting cavity 410; a first gear installation cavity 320 is arranged in the installation seat 120, a first rotating shaft 321 which can rotate and is horizontally arranged is arranged in the first gear installation cavity 320, a first bevel gear 321a is arranged on the first rotating shaft 321, a screw rod installation cavity 330 which is used for being communicated with the first gear installation cavity 320 is arranged below the first gear installation cavity 320, a screw rod 331 which can rotate and is vertically arranged is arranged in the screw rod installation cavity 330, a second bevel gear 331a which is matched with the first bevel gear 321a is arranged on the screw rod 331, and a sliding block 331b which can slide is arranged on the screw rod 331; the screw rod installation cavity 330 is communicated with the rack installation cavity 410, a rack bump 510 is arranged at the lower end of the first rack 420, and a support rod 610 matched with the rack bump 510 is connected to the sliding block 331 b.
Through the arrangement of the gear 310, the first rack 420, the first rotating shaft 321, the first bevel gear 321a, the lead screw 331 and the second bevel gear 331a in this embodiment, when a medical worker performs a fat transplantation operation, the medical worker can press the dial block 122 on the first rack 420 to move the first rack 420 downward, and the driving mechanism is rotated by the engagement between the first rack 420 and the gear 310 on the driving mechanism, so that the first screw 130 is rotated. Due to the threaded engagement between the first screw 130 and the mounting block 120, the first screw 130 will move downward, thereby moving the piston 210 downward to complete the filling of fat. Before pushing the shifting block 122, the medical staff can adjust the position of the sliding block 331b by rotating the first rotating shaft 321, and when pushing the shifting block 122, due to the blocking effect of the supporting rod 610 on the sliding block 331b on the rack projection 510 at the lower end of the first rack 420, after the rack projection 510 on the first rack 420 moves to abut against the supporting rod 610, the first rack 420 cannot descend continuously, so that the control of the single injection amount is realized. A ARC fat transplantation syringe that is arranged in this embodiment for autologous fat high accuracy pressure propeller compares in the comparison file is through the cooperation between first rack 420 and the slider 331b, comparatively simple and convenient completion to first rack 420 spacing, also accomplish the control to the fat injection volume, the accurate nature of fat injection has been promoted, both avoided causing the fat transplantation effect not good because the fat injection volume is not enough, avoided again because the fat injection volume is too big and cause the death of fat, thereby the effect of fat injection has been promoted. In the actual operation process, the medical staff can adjust the first rotating shaft 321 at any time to control the single injection amount of the fat.
Referring to fig. 2, in this embodiment, a second gear installation cavity 220 is disposed in the installation seat 120 along the length direction of the first screw 130, the driving mechanism includes a third bevel gear 230 disposed in the second gear installation cavity 220 and in clearance fit with the first screw 130, the first screw 130 is provided with a plurality of sliding slots 710 disposed along the length direction of the first screw 130, and the third bevel gear 230 is provided with a plurality of bevel gear bumps 810 engaged with the sliding slots 710; a third gear installation cavity 240 positioned between the first gear installation cavity 320 and the second gear installation cavity 220 is arranged in the installation seat 120, the third gear installation cavity 240 is communicated with the second gear installation cavity 220, a rotatable second rotating shaft 250 with the end part extending into the second gear installation cavity 220 is arranged in the third gear installation cavity 240, and a fourth bevel gear 260 which is positioned in the second gear installation cavity 220 and is meshed with the third bevel gear 230 is arranged on the second rotating shaft 250; a rotating disc 340 positioned on the second rotating shaft 250 is arranged in the third gear installation cavity 240, a rotatable lantern ring 350 is arranged on the rotating disc 340, a second rack 910 used for being meshed with the gear 310 is arranged on the lantern ring 350, ratchet teeth 920 are arranged on the lantern ring 350, a first stopping mechanism used for being matched with the ratchet teeth 920 is arranged on the rotating disc 340, the first stopping mechanism comprises a first stopping claw 930 hinged on the rotating disc 340, and a second spring 940 used for enabling the first stopping claw 930 to abut against the ratchet teeth 920 is arranged on the rotating disc 340; the third gear installation cavity 240 is provided with a rotatable third rotating shaft 270 located below the second rotating shaft 250, and the gear 310 is arranged on the third rotating shaft 270.
Through the arrangement of the specific structure of the driving mechanism in the embodiment, when the medical staff presses the shifting block 122, the first rack 420 moves downward along with the movement of the shifting block 122, and the gear 310 moves along with the movement of the first rack 420 due to the meshing between the first rack 420 and the gear 310; collar 350 rotates with the rotation of gear 310 due to the engagement between gear 310 and second rack 910 on collar 350; due to the cooperation between the first stop mechanism on the collar 350 and the rotating disc 340, the rotating disc 340 will rotate under the driving of the first stop mechanism, so that the second rotating shaft 250 will rotate, and due to the engagement between the fourth bevel gear 260 on the second rotating shaft 250 and the third bevel gear 230 on the first screw 130, the third bevel gear 230 will rotate; due to the engagement between the bevel gear protrusion 810 of the third bevel gear 230 and the slide groove 710 of the first screw 130, the first screw 130 rotates and moves downward with the rotation of the third bevel gear 230, so that the pressing piston 210 moves downward to perform the injection of the fat. After completing an injection, the medical staff may pull out the needle tube 110, and when the dial 122 is released, the first rack 420 will move upward under the action of the first spring 430 to reset the first rack 420, and due to the arrangement of the first stop mechanism during the movement of the first rack 420, the rotary disc 340 will not move, i.e. the rotation of the first screw 130 is avoided, so that the first screw 130 can extrude the piston 210 more stably.
In this embodiment, a fourth gear installation cavity 360 located between the third gear installation cavity 240 and the first gear installation cavity 320 is disposed in the installation base 120, the fourth gear installation cavity 360 is communicated with the third gear installation cavity 240, an end portion of the second rotating shaft 250 extends into the fourth gear installation cavity 360, a ratchet 370 located on the second rotating shaft 250 is disposed in the fourth gear installation cavity 360, a second stopping mechanism used for being matched with the ratchet 370 is disposed at an upper end portion of the fourth gear installation cavity 360, the second stopping mechanism includes a second stopping claw 1010 hinged to an inner wall of the fourth gear installation cavity 360, and a third spring 1020 used for enabling the second stopping claw 1010 to abut against the ratchet 370 is disposed in the fourth gear installation cavity 360.
Through the arrangement of the ratchet wheel 370 and the second stopping mechanism in the embodiment, the second rotating shaft 250 can be further prevented from rotating along with the rotation of the lantern ring 350 in the process of moving the first rack 420 upwards, so that the stability of the high-precision pressure propeller for autologous fat in use is preferably improved.
In this embodiment, the center of the ratchet 370 is recessed inward to form a plurality of ratchet recesses 1030, a sliding shaft installation cavity 1110 is disposed at an end portion of the second rotating shaft 250 close to the ratchet 370, a slidable sliding shaft 1120 is disposed in the sliding shaft installation cavity 1110, a plurality of rotating shaft openings 1130 communicating with the sliding shaft installation cavity 1110 are disposed on a side wall of the second rotating shaft 250, and a sliding shaft protrusion 1140 is disposed on the sliding shaft 1120, an end portion of which extends out of the rotating shaft opening 1130 and is matched with the ratchet recesses 1030; a fourth spring 1150 for pushing the sliding shaft projection 1140 into the ratchet groove 1030 is arranged in the sliding shaft mounting cavity 1110; the end of the fourth gear installation cavity 360 is communicated with the first gear installation cavity 320, the end of the second rotating shaft 250 close to the first rotating shaft 321 is provided with a rotating shaft through hole 1160 communicated with the sliding shaft installation cavity 1110, and the sliding shaft 1120 is provided with a supporting column 1170 the end of which penetrates through the rotating shaft through hole 1160; the center of the first bevel gear 321a is recessed inwards to form an octagonal through hole 1210, and a first polygonal bump 1310 matched with the octagonal through hole 1210 is arranged on the first rotating shaft 321; the upper end of the mounting base 120 is provided with a screw hole 440 communicated with the rack mounting cavity 410, and the screw hole 440 is provided with a second screw 123 for limiting the first rack 420.
Through the arrangement of the sliding shaft 1120, the sliding shaft projection 1140 and the ratchet groove 1030 in the present embodiment, after the injection of fat is completed, a medical staff can screw the second screw 123, so that the second screw 123 rises in the rack mounting cavity 410, the first rack 420 will gradually rise due to the action of the first spring 430, and when the first rack 420 is disengaged from the gear 310, the first rotating shaft 321 is pressed, so that the first polygonal projection 1310 on the first rotating shaft 321 is disengaged from the octagonal through hole 1210 on the first bevel gear 321a, and the sliding shaft projection 1140 is disengaged from the ratchet groove 1030, at this time, the medical staff can rotate the first screw 130 to reset the first screw 130; after the first screw 130 is reset, the first rotating shaft 321 is loosened, the sliding shaft 1120 will move under the action of the fourth spring 1150, so that the sliding shaft boss 1140 is inserted into the ratchet groove 1030, and the ratchet 370 limits the second rotating shaft 250; the supporting post 1170 will press the first rotating shaft 321 such that the first polygonal protrusion 1310 is inserted into the octagonal through hole 1210, such that the first bevel gear 321a is engaged with the first rotating shaft 321; thereby relatively simply completing the resetting of the first screw 130. It should be noted that: in order to prevent the second rotating shaft 250 from moving when the first rotating shaft 321 is pushed, an annular stopper 1430 is disposed on the second rotating shaft 250 and located in the third gear installation cavity 240.
In this embodiment, an end surface of the second rotating shaft 250 close to the first rotating shaft 321 is recessed inwards to form a rotating shaft groove 1180, and a second polygonal protrusion 1320 matched with the rotating shaft groove 1180 is disposed at an end portion of the first rotating shaft 321 close to the rotating shaft groove 1180.
Through the arrangement of the rotating shaft groove 1180 and the second polygonal bump 1320 in the embodiment, after the first rotating shaft 321 is inserted into the rotating shaft groove 1180, the second rotating shaft 250 can rotate along with the rotation of the first rotating shaft 321, so that the medical staff can reset the first screw 130 by rotating the first rotating shaft 321, thereby further facilitating the resetting of the first screw 130.
In this embodiment, the number of the ratchet recesses 1030 is 8 and is uniformly distributed along the circumference of the ratchet 370, and in cooperation, the number of the rotating shaft openings 1130 is also 8.
Through the arrangement of the number of the ratchet grooves 1030 and the number of the rotating shaft openings 1130 in the embodiment, the sliding shaft projections 1140 can be easily inserted into the ratchet grooves 1030, so that the stability of the high-precision pressure propeller for autologous fat in use is improved better.
In this embodiment, the side walls of the two ends of the ratchet recess 1030 are recessed toward one side to form a first inclined surface 1040, and the side walls of the two ends of the sliding shaft protrusion 1140 are recessed inward to form a second inclined surface 1410.
Through the arrangement of the first inclined surface 1040 and the second inclined surface 1410 in the embodiment, the sliding shaft projection 1140 can be easily inserted into the ratchet groove 1030, and the stability of the high-precision pressure propeller for autologous fat in use is preferably improved.
In this embodiment, the sidewall of the opening of the rotation axis groove 1180 is recessed inward to form a third inclined surface 1420, and the end of the second polygonal protrusion 1320 is recessed toward the center along the circumference to form a fourth inclined surface 1330.
Through the arrangement of the third inclined surface 1420 and the fourth inclined surface 1330 in the present embodiment, the second polygonal protrusion 1320 on the first rotating shaft 321 can be easily inserted into the rotating shaft groove 1180, so that the stability of the high-precision self-fat pressure propeller in use is improved.
In this embodiment, the end of the mounting seat 120 adjacent to the needle tube 110 protrudes toward the interior of the needle tube 110 to form a mounting seat protrusion 280, the lower end of the second gear mounting cavity 220 extends into the mounting seat protrusion 280, the upper and lower ends of the second gear mounting cavity 220 are both provided with mounting through holes 1510 in clearance fit with the first screw 130, and the inner walls of the mounting through holes 1510 are provided with threads 1520 in fit with the first screw 130.
Through the arrangement of the mounting seat bump 280 in the embodiment, the mounting seat 120 can be prevented from shaking on the needle tube 110, so that the stability of the high-precision pressure propeller for autologous fat in use is improved; through the arrangement of the mounting through hole 1510 and the thread 1520, the first screw 130 can move in the second gear mounting cavity 220 more stably.
In this embodiment, an end of the first rotating shaft 321 extends out of the mounting seat 120, an end of the first rotating shaft 321 extending out of the mounting seat 120 is fixedly connected with the knob 140, and the outer sidewall of the mounting seat 120 is provided with a scale mark 150 arranged along the circumferential direction of the knob 140.
Through the arrangement of the knob 140 in the embodiment, medical staff can rotate the first rotating shaft 321 by screwing the knob 140, so that the medical staff can use the medical staff conveniently; through the arrangement of the graduation lines 150, the medical staff can rotate the knob 140 to different positions of the graduation lines 150 to realize the control of the single fat injection amount, thereby facilitating the control of the medical staff on the injection amount.
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 (6)
1. Be used for autologous fat high accuracy pressure propeller, its characterized in that: the device comprises a mounting seat (120) fixedly connected with a needle tube (110), wherein a piston (210) is arranged in the inner wall of the needle tube (110), and a first screw rod (130) with the lower end abutting against the piston (210) is in threaded connection in the mounting seat (120); a driving mechanism used for driving the first screw rod (130) to vertically move downwards is arranged in the mounting seat (120), the driving mechanism comprises a gear (310), a rack mounting cavity (410) is arranged beside the gear (310) in the mounting seat (120), a first rack (420) which can slide and is meshed with the gear (310) is arranged in the rack mounting cavity (410), a mounting seat opening (121) communicated with the rack mounting cavity (410) is arranged on the side wall of the mounting seat (120), a shifting block (122) with the end part extending out of the mounting seat (120) opening is arranged on the first rack (420), and a first spring (430) positioned at the lower end part of the first rack (420) is arranged in the rack mounting cavity (410); a first gear installation cavity (320) is arranged in the installation seat (120), a first rotating shaft (321) which can rotate and is horizontally arranged is arranged in the first gear installation cavity (320), a first bevel gear (321a) is arranged on the first rotating shaft (321), a screw rod installation cavity (330) which is communicated with the first gear installation cavity (320) is arranged below the first gear installation cavity (320), a screw rod (331) which can rotate and is vertically arranged is arranged in the screw rod installation cavity (330), a second bevel gear (331a) which is matched with the first bevel gear (321a) is arranged on the screw rod (331), and a sliding block (331b) which can slide is arranged on the screw rod (331); the screw rod installation cavity (330) is communicated with the rack installation cavity (410), a rack convex block (510) is arranged at the lower end part of the first rack (420), and a support rod (610) matched with the rack convex block (510) is connected to the sliding block (331 b); a second gear installation cavity (220) arranged along the length direction of the first screw (130) is arranged in the installation seat (120), the driving mechanism comprises a third bevel gear (230) which is arranged in the second gear installation cavity (220) and is in clearance fit with the first screw (130), a plurality of sliding grooves (710) arranged along the length direction of the first screw (130) are arranged on the first screw (130), and a plurality of bevel gear convex blocks (810) matched with the sliding grooves (710) are arranged on the third bevel gear (230); a third gear installation cavity (240) which is positioned between the first gear installation cavity (320) and the second gear installation cavity (220) is arranged in the installation seat (120), the third gear installation cavity (240) is communicated with the second gear installation cavity (220), a rotatable second rotating shaft (250) with the end part extending into the second gear installation cavity (220) is arranged in the third gear installation cavity (240), and a fourth bevel gear (260) which is positioned in the second gear installation cavity (220) and is meshed with the third bevel gear (230) is arranged on the second rotating shaft (250); a rotating disc (340) positioned on the second rotating shaft (250) is arranged in the third gear mounting cavity (240), a rotatable lantern ring (350) is arranged on the rotating disc (340), a second rack (910) meshed with the gear (310) is arranged on the lantern ring (350), ratchet teeth (920) are arranged on the lantern ring (350), a first stopping mechanism matched with the ratchet teeth (920) is arranged on the rotating disc (340), the first stopping mechanism comprises a first stopping claw (930) hinged to the rotating disc (340), and a second spring (940) used for enabling the first stopping claw (930) to abut against the ratchet teeth (920) is arranged on the rotating disc (340); a third rotating shaft (270) which is rotatable and is positioned below the second rotating shaft (250) is arranged in the third gear installation cavity (240), and the gear (310) is arranged on the third rotating shaft (270); a fourth gear installation cavity (360) located between the third gear installation cavity (240) and the first gear installation cavity (320) is arranged in the installation seat (120), the fourth gear installation cavity (360) is communicated with the third gear installation cavity (240), the end part of the second rotating shaft (250) extends into the fourth gear installation cavity (360), a ratchet wheel (370) located on the second rotating shaft (250) is arranged in the fourth gear installation cavity (360), a second stop mechanism matched with the ratchet wheel (370) is arranged at the upper end part of the fourth gear installation cavity (360), the second stop mechanism comprises a second stop claw (1010) hinged to the inner wall of the fourth gear installation cavity (360), and a third spring (1020) used for enabling the second stop claw (1010) to abut against the ratchet wheel (370) is arranged in the fourth gear installation cavity (360); the center of the ratchet wheel (370) is inwards recessed to form a plurality of ratchet wheel grooves (1030), the end part, close to the ratchet wheel (370), in the second rotating shaft (250) is provided with a sliding shaft installation cavity (1110), a sliding shaft (1120) is arranged in the sliding shaft installation cavity (1110), the side wall of the second rotating shaft (250) is provided with a plurality of rotating shaft openings (1130) communicated with the sliding shaft installation cavity (1110), and the sliding shaft (1120) is provided with a sliding shaft lug (1140) of which the end part extends out of the rotating shaft openings (1130) and is matched with the ratchet wheel grooves (1030); a fourth spring (1150) for pushing the sliding shaft lug (1140) into the ratchet wheel groove (1030) is arranged in the sliding shaft mounting cavity (1110); the end part of the fourth gear installation cavity (360) is communicated with the first gear installation cavity (320), a rotating shaft through hole (1160) communicated with the sliding shaft installation cavity (1110) is arranged at the end part, close to the first rotating shaft (321), of the second rotating shaft (250), and a supporting column (1170) of which the end part penetrates through the rotating shaft through hole (1160) is arranged on the sliding shaft (1120); the center of the first bevel gear (321a) is inwards sunken to form an octagonal through hole (1210), and a first polygonal bump (1310) matched with the octagonal through hole (1210) is arranged on the first rotating shaft (321); a screw hole (440) communicated with the rack mounting cavity (410) is formed in the upper end of the mounting seat (120), and a second screw (123) used for limiting the first rack (420) is arranged in the screw hole (440); the end surface of the second rotating shaft (250) close to the first rotating shaft (321) is recessed inwards to form a rotating shaft groove (1180), and a second polygonal bump (1320) matched with the rotating shaft groove (1180) is arranged at the end part of the first rotating shaft (321) close to the rotating shaft groove (1180).
2. The high precision pressure propeller for autologous fat according to claim 1, wherein: the number of the ratchet wheel grooves (1030) is 8, the ratchet wheel grooves are evenly distributed along the circumferential direction of the ratchet wheel (370), and the number of the rotating shaft openings (1130) is 8 in a matched mode.
3. The high precision pressure propeller for autologous fat according to claim 1, wherein: the side walls of both ends of the ratchet groove (1030) are recessed towards one side to form a first inclined surface (1040), and the side walls of both ends of the sliding shaft protrusion (1140) are recessed inwards to form a second inclined surface (1410).
4. The high precision pressure propeller for autologous fat according to claim 1, wherein: the side wall of the opening of the rotating shaft groove (1180) is inwards sunken to form a third inclined surface (1420), and the end part of the second polygonal bump (1320) is sunken to the center along the circumferential direction to form a fourth inclined surface (1330).
5. The high precision pressure propeller for autologous fat according to claim 1, wherein: the end part of the mounting seat (120) adjacent to the needle tube (110) protrudes towards the inside of the needle tube (110) to form a mounting seat bump (280), the lower end part of the second gear mounting cavity (220) extends into the mounting seat bump (280), the upper end and the lower end of the second gear mounting cavity (220) are both provided with a mounting through hole (1510) in clearance fit with the first screw rod (130), and the inner wall of the mounting through hole (1510) is provided with a thread (1520) matched with the first screw rod (130).
6. The high precision pressure propeller for autologous fat according to claim 1, wherein: the end part of the first rotating shaft (321) extends out of the mounting seat (120), the end part of the first rotating shaft (321) extending out of the mounting seat (120) is fixedly connected with a knob (140), and scale marks (150) arranged along the circumferential direction of the knob (140) are arranged on the outer side wall of the mounting seat (120).
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| CN202010133324.8A CN111249580B (en) | 2020-03-01 | 2020-03-01 | High-precision pressure propeller for autologous fat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010133324.8A CN111249580B (en) | 2020-03-01 | 2020-03-01 | High-precision pressure propeller for autologous fat |
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| CN111249580B true CN111249580B (en) | 2021-12-07 |
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| CN112426593B (en) * | 2020-10-12 | 2022-04-29 | 河南科技大学第一附属医院 | Injection device for plastic surgery |
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Effective date of registration: 20211118 Address after: 315000 No. 777, Liyuan North Road, Haishu District, Ningbo City, Zhejiang Province Applicant after: NINGBO JUSTHER ORTHOPEDIC SPECIALIST HOSPITALS Co.,Ltd. Address before: 637400 No. 1, group 18, fule village, Baiya Town, Langzhong City, Nanchong City, Sichuan Province Applicant before: Du Mingyu |
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Denomination of invention: High precision pressure thruster for autologous fat Effective date of registration: 20230818 Granted publication date: 20211207 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Haishu sub branch Pledgor: NINGBO JUSTHER ORTHOPEDIC SPECIALIST HOSPITALS Co.,Ltd. Registration number: Y2023980052849 |
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