CN111249577B - Autologous fat transplantation needle for improving survival rate of fat cells - Google Patents
Autologous fat transplantation needle for improving survival rate of fat cells Download PDFInfo
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- CN111249577B CN111249577B CN202010133325.2A CN202010133325A CN111249577B CN 111249577 B CN111249577 B CN 111249577B CN 202010133325 A CN202010133325 A CN 202010133325A CN 111249577 B CN111249577 B CN 111249577B
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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
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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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31525—Dosing
- A61M5/31526—Dosing by means of stepwise axial movements, e.g. ratchet mechanisms or detents
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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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
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- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
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Abstract
The invention relates to the technical field of fat transplantation, and particularly discloses an autologous fat transplantation needle for improving the survival rate of fat cells, which comprises a needle tube and a mounting seat fixedly connected with the needle tube, wherein a piston is arranged in the needle tube, and the lower end part of the screw rod is abutted against the piston in the mounting seat in a threaded connection manner; a driving mechanism for driving the screw rod to move downwards is arranged in the mounting seat, the driving mechanism comprises a rack mounting cavity arranged in the mounting seat, a first rack capable of sliding is arranged in the rack mounting cavity, a first rotating shaft and a screw rod are arranged in the mounting seat, a first bevel gear is arranged on the first rotating shaft, a second bevel gear matched with the first bevel gear is arranged on the screw rod, and a sliding block is 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 preferably improves the survival rate of the fat cells in the fat transplantation operation.
Description
Technical Field
The invention relates to the technical field of fat transplantation, in particular to an autologous fat transplantation needle for improving the survival rate of fat cells.
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 fat injection amount once, the invention provides an autologous fat transplantation needle for improving the survival rate of fat cells. 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:
an autologous fat transplantation needle for improving the survival rate of fat cells comprises a needle tube and a mounting seat fixedly connected with the needle tube, wherein a piston is arranged in the needle tube, and the lower end part of the mounting seat is connected with a screw rod which is abutted against the piston through threads; a driving mechanism used for driving the screw rod to move downwards is arranged in the mounting seat, the driving mechanism comprises a rack mounting cavity arranged in the mounting seat, a first slidable rack is arranged in the rack mounting cavity, a first gear mounting cavity is arranged in the mounting seat, a first rotating shaft which can rotate and is horizontally arranged is arranged in the first gear mounting cavity, a first bevel gear is arranged on the first rotating shaft, a screw rod mounting cavity communicated with the first gear mounting cavity is arranged below the first gear mounting cavity, a screw rod which can rotate and is vertically arranged is arranged in the screw rod mounting cavity, a second bevel gear matched with the first bevel gear is arranged on the screw rod, and a slidable sliding block is further arranged on the screw rod; the screw rod installation cavity is communicated with the rack installation cavity, a rack bump is arranged at the lower end part of the first rack, and a support rod matched with the rack bump is connected to the sliding block; the tip of first pivot stretches out the mount pad, and the tip that stretches out the mount pad on the first pivot is equipped with the knob, is equipped with the scale mark along knob circumference distribution on the lateral wall of mount pad.
Through the arrangement of the first rack, the first rotating shaft, the first bevel gear, the screw rod and the second bevel gear, when medical personnel carry out fat transplantation operation, the limit of the first rack, namely the control of fat injection amount, can be conveniently completed through the matching between the first rack and the sliding block, the fat injection accuracy is improved, the poor fat transplantation effect caused by insufficient fat injection amount is avoided, the death of fat caused by excessive fat injection amount is also avoided, and the survival rate of fat cells in the fat transplantation operation is better improved.
The knob is arranged, so that medical personnel can rotate the first rotating shaft by screwing the knob, and the medical personnel can use the rotary tool conveniently; through the setting of scale mark for medical personnel can rotate the knob to the different departments of scale mark and realize the control to single fat injection volume, thereby made things convenient for medical personnel to the control of injection volume.
Preferably, a second gear installation cavity is arranged in the installation seat along the length direction of the screw, the driving mechanism comprises a third bevel gear which is arranged in the second gear installation cavity and is matched with the screw, the screw is provided with a plurality of sliding grooves which are arranged along the length direction of the screw, and the third bevel gear is provided with a plurality of bevel gear lugs which are matched with the sliding grooves; a third gear installation cavity which is positioned between the first gear installation cavity and the second gear installation cavity is arranged in the installation seat, 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, 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, an upper rotating disc which is positioned on the second rotating shaft is arranged in the third gear installation cavity, a rotatable lantern ring is arranged on the rotating disc, ratchet teeth are arranged on the lantern ring, a first stopping mechanism which is matched with the ratchet teeth is arranged on the rotating disc, the first stopping mechanism comprises a first stopping claw hinged on the rotating disc, and a second spring which is used for enabling the first stopping claw to abut against the ratchet teeth is arranged on the rotating disc; a second rack arranged along the circumferential direction of the lantern ring is arranged on the lantern ring, a third rotating shaft which is rotatable and is positioned below the second rotating shaft is arranged in a third gear installation cavity, a gear meshed with the second rack and the first rack is arranged on the third rotating shaft, and a first spring used for resetting the first rack is arranged at the bottom end of the rack installation cavity; the side wall of the mounting seat is provided with a mounting seat opening communicated with the rack mounting cavity, and the upper end part of the first rack is provided with a shifting block of which the end part extends out of the mounting seat opening.
According to the invention, the screw 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 self-body fat high-precision pressure propeller, the ratchet wheel and the second stop mechanism are arranged, so that the second 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-body fat high-precision pressure propeller in use is improved better.
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 in the second rotating shaft, a sliding shaft is arranged in the sliding shaft installation cavity, a plurality of first strip-shaped through holes communicated with the sliding shaft installation cavity are formed in the side wall of the second rotating shaft, a first sliding shaft bump is arranged on the sliding shaft, the end part of the first sliding shaft bump extends out of the first strip-shaped through holes and is matched with the ratchet wheel grooves, and a fourth spring used for enabling the first sliding shaft bump to be abutted into the ratchet wheel grooves is arranged in the sliding shaft installation 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 protruding block matched with the octagonal through hole is arranged on the first rotating shaft.
According to the invention, the screw rod can be conveniently reset through the arrangement of the sliding shaft, the first sliding shaft lug and the ratchet wheel groove.
Preferably, the center of the rotary table is inwards recessed to form a plurality of rotary table grooves, a plurality of second strip-shaped through holes communicated with the sliding shaft mounting cavity are formed in the second rotary shaft and close to the rotary table, and second sliding shaft protruding blocks, the end portions of which extend out of the second strip-shaped through holes and are matched with the rotary table grooves, are arranged on the sliding shaft.
According to the invention, the screw rod can be conveniently reset by medical personnel through the arrangement of the turntable groove and the second sliding shaft lug.
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 invention, the resetting of the screw rod can be conveniently completed through the arrangement of the rotating shaft groove and the second polygonal bump.
Preferably, the second rotating shaft is provided with a first annular baffle positioned in the third gear installation cavity.
According to the invention, the arrangement of the first annular baffle plate can prevent the second rotating shaft from moving when the first rotating shaft is pressed, so that the stability of the autologous fat transplantation needle for improving the survival rate of fat cells is better improved when the autologous fat transplantation needle is used.
Preferably, the first rotating shaft is provided with a second annular baffle plate which is positioned in the first gear installation cavity and is close to the knob.
According to the invention, the second annular baffle plate is arranged, so that the first rotating shaft can be limited, and the first rotating shaft is prevented from moving and being disengaged from the first bevel gear when fat injection is carried out; and the second annular baffle plate has certain friction with the first gear installation cavity under the action of the fourth spring, so that the first rotating shaft is prevented from rotating automatically when in use, and the stability of the autologous fat transplantation needle for improving the survival rate of fat cells is improved better.
Preferably, the side wall of the opening of the groove of the rotating shaft is recessed inwards to form a first inclined surface, and the end part of the second polygonal convex block is recessed towards the center along the circumferential direction to form a second inclined surface.
According to the autologous fat transplantation needle, 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 first inclined surface and the second inclined surface, so that the stability of the autologous fat transplantation needle for improving the survival rate of fat cells is better improved when the autologous fat transplantation needle is used.
Preferably, the upper end and the lower end of the second gear installation cavity are respectively provided with an installation through hole in clearance fit with the screw rod, and the inner wall of the installation through hole is provided with threads matched with the screw rod.
According to the invention, through the arrangement of the mounting through hole and the threads, the screw rod can stably move in the second gear mounting cavity.
Drawings
Fig. 1 is a schematic structural view of an autologous fat transplantation needle for improving the survival rate of adipocytes in example 1.
Fig. 2 is a sectional view of the autologous fat transplantation needle for improving the survival rate of fat cells of fig. 1.
Fig. 3 is a sectional view of the autologous fat transplantation needle for improving the survival rate of fat cells of fig. 1.
Fig. 4 is an enlarged view of a portion a in fig. 2.
Fig. 5 is a schematic structural view of the first rack in fig. 3.
Fig. 6 is a schematic structural diagram of the slider in fig. 4.
Fig. 7 is a schematic structural view of the screw of fig. 1.
Fig. 8 is a plan view of the third bevel gear of fig. 2.
Fig. 9 is an enlarged view of a portion B in fig. 4.
Fig. 10 is a schematic structural view of the turntable and the collar in fig. 9.
FIG. 11 is a schematic view of the ratchet wheel of FIG. 2.
Fig. 12 is a top view of the first bevel gear of fig. 4.
Fig. 13 is a schematic structural view of the first rotating shaft in fig. 4.
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; 130. a screw; 140. a knob; 150. scale lines; 210. a piston; 220. a second gear mounting cavity; 230. a third bevel gear; 240. a second rotating shaft; 250. a fourth bevel gear; 260. a third rotating shaft; 270. a gear; 280. a ratchet wheel; 310. a rack mounting cavity; 320. a first rack; 330. a first spring; 410. a first gear mounting cavity; 420. a first rotating shaft; 421. a first bevel gear; 422. a second annular baffle; 430. a screw rod installation cavity; 440. a screw rod; 441. a second bevel gear; 442. a slider; 450. a third gear mounting cavity; 460. a fourth gear mounting cavity; 510. A rack projection; 610. a support bar; 710. a chute; 810. a bevel gear projection; 910. a turntable; 920. a collar; 930. a sliding shaft mounting cavity; 940. a sliding shaft; 941. a first sliding shaft projection; 942. a second sliding shaft projection; 943. a support pillar; 950. a first bar-shaped through hole; 960. a fourth spring; 970. a through hole of the rotating shaft; 980. a second strip-shaped through hole; 1010. ratchet teeth; 1020. a first locking pawl; 1030. a second spring; 1040. a second rack; 1050. a turntable groove; 1110. a second locking pawl; 1120. a third spring; 1130. a ratchet groove; 1210. an octagonal via hole; 1310. a first polygonal bump; 1320. a second polygonal bump; 1330. a second inclined surface; 1410. a first annular baffle; 1420. a first inclined surface; 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 an autologous fat transplantation needle for improving the survival rate of fat cells, which comprises a needle tube 110 and a mounting seat 120 fixedly connected to the needle tube 110, wherein a piston 210 is arranged in the needle tube 110, and a screw 130 with a lower end abutting against the piston 210 is threadedly connected to the mounting seat 120; a driving mechanism for driving the screw 130 to move downwards is arranged in the mounting seat 120, the driving mechanism comprises a rack mounting cavity 310 arranged in the mounting seat 120, a first slidable rack 320 is arranged in the rack mounting cavity 310, a first gear mounting cavity 410 is arranged in the mounting seat 120, a first rotating shaft 420 which can rotate and is horizontally arranged is arranged in the first gear mounting cavity 410, a first bevel gear 421 is arranged on the first rotating shaft 420, a screw rod mounting cavity 430 which is communicated with the first gear mounting cavity 410 is arranged below the first gear mounting cavity 410, a screw rod 440 which can rotate and is vertically arranged is arranged in the screw rod mounting cavity 430, a second bevel gear 441 which is matched with the first bevel gear 421 is arranged on the screw rod 440, and a slidable slider 442 is also arranged on the screw rod 440; the screw rod installation cavity 430 is communicated with the rack installation cavity 310, a rack bump 510 is arranged at the lower end part of the first rack 320, and a support rod 610 matched with the rack bump 510 is connected to the sliding block 442; the end of the first rotating shaft 420 extends out of the mounting seat 120, the end of the first rotating shaft 420 extending out of the mounting seat 120 is provided with a knob 140, and the side wall of the mounting seat 120 is provided with scale marks 150 distributed along the circumferential direction of the knob 140.
Through the arrangement of the first rack 320, the first rotating shaft 420, the first bevel gear 421, the lead screw 440 and the second bevel gear 441 in the embodiment, when a medical staff performs a fat transplantation operation, the medical staff can move the first rack 320 downwards so that the screw 130 moves the extrusion piston 210 downwards to complete the fat filling. Before the first rack 320 is moved downwards, the medical staff can adjust the position of the sliding block 442 by rotating the first rotating shaft 420, and when the first rack 320 is moved, due to the blocking effect of the support rod 610 on the sliding block 442 on the rack projection 510 at the lower end of the first rack 320, after the rack projection 510 on the first rack 320 moves to abut against the support rod 610, the first rack 320 cannot be further lowered, thereby achieving the control of the single injection amount. The autologous fat transplantation needle of improvement adipocyte survival rate in this embodiment compares in the comparison file ARC fat transplantation syringe through the cooperation between first rack 320 and the slider 442, comparatively simple and convenient completion to first rack 320 spacing, also accomplish the control to the fat injection volume, the precision 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 better promotion adipocyte's in the fat transplantation operation survival rate. During the actual operation, the medical staff can adjust the first rotating shaft 420 at any time to control the single injection amount of the fat. The knob 140 is arranged, so that medical staff can rotate the first rotating shaft 420 by screwing the knob 140, and the use of the medical staff is facilitated; 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 this embodiment, the mounting base 120 is internally provided with a second gear mounting cavity 220 arranged along the length direction of the screw 130, the driving mechanism includes a third bevel gear 230 arranged in the second gear mounting cavity 220 and matched with the screw 130, the screw 130 is provided with a plurality of sliding grooves 710 arranged along the length direction of the screw 130, and the third bevel gear 230 is provided with a plurality of bevel gear bumps 810 matched with the sliding grooves 710; a third gear installation cavity 450 located between the first gear installation cavity 410 and the second gear installation cavity 220 is arranged in the installation base 120, the third gear installation cavity 450 is communicated with the second gear installation cavity 220, a second rotating shaft 240 which is rotatable and the end of which extends into the second gear installation cavity 220 is arranged in the third gear installation cavity 450, a fourth bevel gear 250 which is located in the second gear installation cavity 220 and is meshed with the third bevel gear 230 is arranged on the second rotating shaft 240, an upper rotary plate 910 which is located on the second rotating shaft 240 is arranged in the third gear installation cavity 450, a rotatable lantern ring 920 is arranged on the rotary plate 910, ratchet teeth are arranged on the lantern ring 920, a first stopping mechanism which is used for being matched with the ratchet teeth 1010 is arranged on the rotary plate 910, the first stopping mechanism comprises a first stopping claw 1020 hinged to the rotary plate 910, and a second spring 1030 which is used for enabling the first stopping claw 1020 to abut against the ratchet teeth 1010 is arranged on the rotary plate 910; a second rack 1040 arranged along the circumferential direction of the collar 920 is arranged on the collar 920, a third rotating shaft 260 which is rotatable and is positioned below the second rotating shaft 240 is arranged in the third gear installation cavity 450, a gear 270 meshed with the second rack 1040 and the first rack 320 is arranged on the third rotating shaft 260, and a first spring 330 for resetting the first rack 320 is arranged at the bottom end of the rack installation cavity 310; the side wall of the mounting seat 120 is provided with a mounting seat opening 121 communicated with the rack mounting cavity 310, and the upper end of the first rack 320 is provided with a shifting block 122, the end of which extends out of the mounting seat opening 121.
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 320 moves downward along with the movement of the shifting block 122, and the gear 270 moves along with the movement of the first rack 320 and the gear 270 due to the meshing between the first rack 320 and the gear 270; the collar 920 rotates with the rotation of the gear 270 due to the engagement between the gear 270 and the second rack 1040 on the collar 920; due to the cooperation between the first stop mechanism on the collar 920 and the rotating disc 910, the rotating disc 910 will be driven by the first stop mechanism to rotate, so that the second rotating shaft 240 rotates, and due to the engagement between the fourth bevel gear 250 on the second rotating shaft 240 and the third bevel gear 230 on the screw 130, the third bevel gear 230 will rotate; due to the engagement between the bevel gear protrusion 810 on the third bevel gear 230 and the sliding groove 710 on the screw 130, the screw 130 will rotate and move downwards with the rotation of the third bevel gear 230, so that the pressing piston 210 moves downwards to perform the injection of the fat. After completing an injection, the medical staff may pull out the needle tube 110 and then release the dial 122, the first rack 320 will move upward under the action of the first spring 330 to reset the first rack 320, and during the process of moving upward the first rack 320, due to the arrangement of the first stop mechanism, the turntable 910 will not move, i.e. the rotation of the screw 130 is avoided, so that the screw 130 can extrude the piston more stably.
In this embodiment, a fourth gear installation cavity 460 located between the third gear installation cavity 450 and the first gear installation cavity 410 is disposed in the installation base 120, the fourth gear installation cavity 460 is communicated with the third gear installation cavity 450, an end portion of the second rotating shaft 240 extends into the fourth gear installation cavity 460, a ratchet 280 located on the second rotating shaft 240 is disposed in the fourth gear installation cavity 460, a second stopping mechanism used for being matched with the ratchet 280 is disposed at an upper end portion of the fourth gear installation cavity 460, the second stopping mechanism includes a second stopping claw 1110 hinged to an inner wall of the fourth gear installation cavity 460, and a third spring 1120 used for enabling the second stopping claw to abut against the ratchet 280 is disposed in the fourth gear installation cavity 460.
Through the arrangement of the ratchet 280 and the second stopping mechanism in the embodiment, the second rotating shaft 240 can be further prevented from rotating along with the rotation of the sleeve ring 920 in the process of moving the first rack 320 upwards, so that the stability of the high-precision autologous fat pressure propeller in use is preferably improved.
In this embodiment, the center of the ratchet 280 is recessed inwards to form a plurality of ratchet grooves 1130, a sliding shaft mounting cavity 930 is provided in the second rotating shaft 240, a slidable sliding shaft 940 is provided in the sliding shaft mounting cavity 930, a plurality of first bar-shaped through holes 950 communicated with the sliding shaft mounting cavity 930 are provided on the side wall of the second rotating shaft 240, a first sliding shaft protrusion 941 is provided on the sliding shaft 940, the end of the first sliding shaft protrusion 941 extends out of the first bar-shaped through hole 950 and is matched with the ratchet groove 1130, and a fourth spring 960 for pushing the first sliding shaft protrusion 941 into the ratchet groove 1130 is provided in the sliding shaft mounting cavity 930; the end of the fourth gear installation cavity 460 is communicated with the first gear installation cavity 410, the end of the second rotating shaft 240 close to the first rotating shaft 420 is provided with a rotating shaft through hole 970 communicated with the sliding shaft installation cavity 930, and the sliding shaft 940 is provided with a support column 943 the end of which passes through the rotating shaft through hole 970; the center of the first bevel gear 421 is recessed inwards to form an octagonal through hole 1210, and a first polygonal protrusion 1310 matched with the octagonal through hole 1210 is disposed on the first rotating shaft 420.
Through the arrangement of the sliding shaft 940, the first sliding shaft protrusion 941 and the ratchet recess 1130 in this embodiment, after the injection of fat in the needle tube 110 is completed, a medical worker can take the first rack 320 out of the mounting seat 120 so that the first rack 320 is disengaged from the gear 270, and then press the first rotating shaft 420 so that the first polygonal protrusion 1310 on the first rotating shaft 420 is disengaged from the octagonal through hole 1210 on the first bevel gear 421, and at this time, the first sliding shaft protrusion 941 is disengaged from the ratchet recess 1130; the medical staff can rotate the screw 130 to reset the screw 130, and after the reset of the screw 130 is completed, the first rotating shaft 420 is loosened, the sliding shaft 940 will move under the action of the fourth spring 960, so that the first sliding shaft protrusion 941 is inserted into the ratchet groove 1130, and the ratchet 280 limits the second rotating shaft 240; the supporting column 970 will press the first rotating shaft 420 such that the first polygonal protrusion 1310 is inserted into the octagonal through hole 1210, and the first bevel gear 421 is engaged with the first rotating shaft 420, thereby easily completing the reset of the screw 130.
In this embodiment, the center of the turntable 910 is recessed inward to form a plurality of turntable grooves 1050, a plurality of second bar-shaped through holes 980 communicating with the sliding shaft installation cavity 930 are disposed on the second rotating shaft 240 near the turntable 910, and second sliding shaft protrusions 942, the ends of which extend out of the second bar-shaped through holes 980 and are matched with the turntable grooves 1050, are disposed on the sliding shaft 940.
Through the arrangement of the turntable groove 1050 and the second sliding shaft protrusion 942 in this embodiment, when the medical staff presses the first rotating shaft 420, the second sliding shaft protrusion 942 will be disengaged from the turntable groove 1050, so that after the fat in the needle tube 110 is injected, the medical staff can rotate the screw 130 to reset the screw 130 by pressing the first rotating shaft 420 without taking the first rack 320 out of the mounting seat 120, so that the turntable 910 and the ratchet 280 are disengaged from the second rotating shaft 240, and the medical staff can reset the screw 130 conveniently.
In this embodiment, an end surface of the second rotating shaft 240 close to the first rotating shaft 420 is recessed inwards to form a rotating shaft groove 990, and an end portion of the first rotating shaft 420 close to the rotating shaft groove 990 is provided with a second polygonal protrusion 1320 matched with the rotating shaft groove 990.
Through the arrangement of the rotating shaft groove 990 and the second polygonal bump 1320 in this embodiment, when the medical staff presses the first rotating shaft 420 to disengage the ratchet 280 from the ratchet wheel 910, the second polygonal bump 1320 on the first rotating shaft 420 will be inserted into the rotating shaft groove 990 of the second rotating shaft 240, and at this time, the medical staff can rotate the first rotating shaft 420 by turning the knob 140, so as to reset the screw 130, and after the screw 130 is fed, the second polygonal bump 1320 will slide out of the rotating shaft groove 990 by the extrusion of the supporting column 970; thereby conveniently completing the resetting of the screw 130.
In this embodiment, the second shaft 240 is provided with a first ring-shaped baffle 1410 located in the third gear installation cavity 450.
Through the arrangement of the first ring-shaped baffle 1410 in this embodiment, the second rotating shaft 240 can be prevented from moving when the first rotating shaft 420 is pressed, so that the stability of the autologous fat transplantation needle for improving the survival rate of fat cells can be better improved.
In this embodiment, the first shaft 420 is provided with a second annular baffle 422 located in the first gear mounting cavity 410 and adjacent to the knob 140.
Through the arrangement of the second annular baffle 422 in the embodiment, the first rotating shaft 420 can be limited, and the first rotating shaft 420 is prevented from moving and being disengaged from the first bevel gear 421 when fat injection is performed; and the second annular baffle 422 has a certain friction with the first gear installation cavity 410 under the action of the fourth spring 960, so that the first rotating shaft 420 is prevented from rotating by itself when in use, and the stability of the autologous fat transplantation needle for improving the survival rate of fat cells is improved better.
In this embodiment, the sidewall of the opening of the rotation shaft groove 990 is recessed inward to form a first inclined surface 1420, and the end of the second polygonal protrusion 1320 is recessed toward the center along the circumference thereof to form a second inclined surface 1330.
Through the arrangement of the first inclined surface 1420 and the second inclined surface 1330 in the present embodiment, the second polygonal protrusion 1320 of the first rotating shaft 420 can be easily inserted into the rotating shaft groove 990, so that the stability of the autologous fat transplantation needle for improving the survival rate of fat cells is preferably improved.
In this embodiment, 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 screw 130, and the inner walls of the mounting through holes 1510 are provided with threads 1520 in fit with the screw 130.
Through the arrangement of the mounting through hole 1510 and the thread 1520 in this embodiment, the screw 130 can move in the second gear mounting cavity 220 more stably.
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 (7)
1. Improve autologous fat transplantation needle of adipocyte survival rate, its characterized in that: the device comprises a needle tube (110) and a mounting seat (120) fixedly connected with the needle tube (110), wherein a piston (210) is arranged in the needle tube (110), and a 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 screw rod (130) to move downwards is arranged in the mounting seat (120), the driving mechanism comprises a rack mounting cavity (310) arranged in the mounting seat (120), a first slidable rack (320) is arranged in the rack mounting cavity (310), a first gear mounting cavity (410) is arranged in the mounting seat (120), a first rotating shaft (420) which can rotate and is horizontally arranged is arranged in the first gear mounting cavity (410), a first bevel gear (421) is arranged on the first rotating shaft (420), a screw rod mounting cavity (430) communicated with the first gear mounting cavity (410) is arranged below the first gear mounting cavity (410), a screw rod (440) which can rotate and is vertically arranged is arranged in the screw rod mounting cavity (430), a second bevel gear (441) matched with the first bevel gear (421) is arranged on the screw rod (440), and a slidable sliding block (442) is further arranged on the screw rod (440); the screw rod installation cavity (430) is communicated with the rack installation cavity (310), a rack bump (510) is arranged at the lower end part of the first rack (320), and a support rod (610) matched with the rack bump (510) is connected to the sliding block (442); the end part of the first rotating shaft (420) extends out of the mounting seat (120), the end part of the first rotating shaft (420) extending out of the mounting seat (120) is provided with a knob (140), and the side wall of the mounting seat (120) is provided with scale marks (150) distributed along the circumferential direction of the knob (140); a second gear installation cavity (220) arranged along the length direction of the 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 matched with the screw (130), a plurality of sliding grooves (710) arranged along the length direction of the screw (130) are arranged on the 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 (450) which is positioned between the first gear installation cavity (410) and the second gear installation cavity (220) is arranged in the installation seat (120), the third gear installation cavity (450) is communicated with the second gear installation cavity (220), a second rotating shaft (240) which is rotatable and the end part of which extends into the second gear installation cavity (220) is arranged in the third gear installation cavity (450), a fourth bevel gear (250) 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 (240), an upper rotary disc (910) which is positioned on the second rotating shaft (240) is arranged in the third gear installation cavity (450), a rotatable lantern ring (920) is arranged on the rotary disc (910), ratchet teeth (1010) are arranged on the lantern ring (920), a first stopping mechanism which is used for being matched with the ratchet teeth (1010) is arranged on the rotary disc (910), and the first stopping mechanism comprises a first stopping claw (1020) which is hinged on the rotary disc (910), the rotary table (910) is provided with a second spring (1030) for abutting the first stop pawl (1020) against the ratchet wheel teeth (1010); a second rack (1040) arranged along the circumferential direction of the lantern ring (920) is arranged on the lantern ring (920), a third rotating shaft (260) which is rotatable and is positioned below the second rotating shaft (240) is arranged in the third gear installation cavity (450), a gear (270) meshed with the second rack (1040) and the first rack (320) is arranged on the third rotating shaft (260), and a first spring (330) used for resetting the first rack (320) is arranged at the bottom end of the rack installation cavity (310); the side wall of the mounting seat (120) is provided with a mounting seat opening (121) communicated with the rack mounting cavity (310), and the upper end part of the first rack (320) is provided with a shifting block (122) of which the end part extends out of the mounting seat opening (121); a fourth gear installation cavity (460) located between the third gear installation cavity (450) and the first gear installation cavity (410) is arranged in the installation seat (120), the fourth gear installation cavity (460) is communicated with the third gear installation cavity (450), the end part of the second rotating shaft (240) extends into the fourth gear installation cavity (460), a ratchet wheel (280) located on the second rotating shaft (240) is arranged in the fourth gear installation cavity (460), a second stopping mechanism matched with the ratchet wheel (280) is arranged at the upper end part of the fourth gear installation cavity (460), the second stopping mechanism comprises a second stopping claw (1110) hinged to the inner wall of the fourth gear installation cavity (460), and a third spring (1120) used for enabling the second stopping claw to abut against the ratchet wheel (280) is arranged in the fourth gear installation cavity (460); the center of the ratchet (280) is inwards recessed to form a plurality of ratchet grooves (1130), a sliding shaft mounting cavity (930) is arranged in the second rotating shaft (240), a sliding shaft (940) capable of sliding is arranged in the sliding shaft mounting cavity (930), a plurality of first strip-shaped through holes (950) communicated with the sliding shaft mounting cavity (930) are formed in the side wall of the second rotating shaft (240), a first sliding shaft lug (941) is arranged on the sliding shaft (940), the end part of the first sliding shaft lug extends out of the first strip-shaped through hole (950) and is matched with the ratchet groove (1130), and a fourth spring (960) used for enabling the first sliding shaft lug (941) to be abutted into the ratchet groove (1130) is arranged in the sliding shaft mounting cavity (930); the end part of the fourth gear installation cavity (460) is communicated with the first gear installation cavity (410), a rotating shaft through hole (970) communicated with the sliding shaft installation cavity (930) is formed in the end part, close to the first rotating shaft (420), of the second rotating shaft (240), and a supporting column (943) with the end part penetrating through the rotating shaft through hole (970) is arranged on the sliding shaft (940); the center of the first bevel gear (421) 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 (420).
2. The autologous fat transplantation needle for improving the survival rate of fat cells according to claim 1, wherein: the center of the rotary table (910) is inwards recessed to form a plurality of rotary table grooves (1050), a plurality of second strip-shaped through holes (980) communicated with the sliding shaft installation cavity (930) are formed in the position, close to the rotary table (910), of the second rotary shaft (240), and second sliding shaft protrusions (942) are arranged on the sliding shaft (940), the end portions of the second strip-shaped through holes (980) extend out of the second sliding shaft protrusions, and the second sliding shaft protrusions are matched with the rotary table grooves (1050).
3. The autologous fat transplantation needle for improving the survival rate of fat cells according to claim 1, wherein: the end face of the second rotating shaft (240) close to the first rotating shaft (420) is inwards recessed to form a rotating shaft groove (990), and the end part of the first rotating shaft (420) close to the rotating shaft groove (990) is provided with a second polygonal convex block (1320) matched with the rotating shaft groove (990).
4. The autologous fat transplantation needle for improving the survival rate of fat cells according to claim 1, wherein: the second rotating shaft (240) is provided with a first annular baffle plate (1410) positioned in the third gear installation cavity (450).
5. The autologous fat transplantation needle for improving the survival rate of fat cells according to claim 1, wherein: the first rotating shaft (420) is provided with a second annular baffle plate (422) which is positioned in the first gear installation cavity (410) and is close to the knob (140).
6. The autologous fat transplantation needle for improving the survival rate of fat cells according to claim 2, wherein: the side wall of the opening of the rotation shaft groove (990) is recessed inwards to form a first inclined surface (1420), and the end part of the second polygonal bump (1320) is recessed towards the center along the circumferential direction to form a second inclined surface (1330).
7. The autologous fat transplantation needle for improving the survival rate of fat cells according to claim 1, wherein: the upper end and the lower end of the second gear installation cavity (220) are both provided with installation through holes (1510) in clearance fit with the screw rods (130), and the inner walls of the installation through holes (1510) are provided with threads (1520) matched with the screw rods (130).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010133325.2A CN111249577B (en) | 2020-03-01 | 2020-03-01 | Autologous fat transplantation needle for improving survival rate of fat cells |
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| CN202010133325.2A CN111249577B (en) | 2020-03-01 | 2020-03-01 | Autologous fat transplantation needle for improving survival rate of fat cells |
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| CN111249577B true CN111249577B (en) | 2021-11-19 |
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| CN111249577A (en) | 2020-06-09 |
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Effective date of registration: 20211012 Address after: 310000 Hexing Road 6, Hexing Road 10, mingyueqiao road 292, Jianggan District, Hangzhou, Zhejiang Applicant after: Hangzhou Lizhi Medical Technology Co.,Ltd. Hexing Road Medical Beauty Clinic 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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