Negative pressure liposuction instrument for medical aesthetic plastic surgery

Abstract

The invention discloses a negative pressure liposuction instrument for medical cosmetology and plastic surgery, and relates to the technical field of liposuction. The side part of the operation unit is fixedly connected with the negative pressure liposuction unit; the negative pressure liposuction unit comprises a liquid separation tank, a rotating cylinder is rotationally arranged in the liquid separation tank, a guide rail for guiding a sliding block to reciprocate up and down is arranged on the surface of the top of a fixing sleeve, a movable rod is fixedly arranged on the top of the sliding block, and a conveying pipe is rotationally connected to the top of the rotating cylinder; the rotating cylinder penetrates through the liquid separation tank through a conveying pipe to be communicated and connected with an insertion pipe, and an opening in the top face of the insertion pipe is movably connected with the surface of the liposuction head. The push disc moves up and down to drive the liposuction head to reciprocate at the front end of the intubation tube, so that the reciprocating motion of the liposuction head can reduce blockage of a suction port, fat tissues can be separated and damaged more quickly and uniformly, and fat cells can be sucked into the liposuction head more quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of liposuction, and in particular to a negative pressure liposuction device for medical cosmetic surgery. Background Art

[0002] Vacuum liposuction is a common cosmetic surgery that uses negative pressure technology to extract excess body fat to achieve a body shaping effect. During the operation, the doctor will make a small incision in the target area, insert the suction tube into the subcutaneous fat layer, and then use the negative pressure device to suck out the fat.

[0003] Chinese patent CN202110920087.4 discloses a negative pressure liposuction instrument for medical cosmetic surgery, including a main body, a workbench fixedly connected to the upper position of the outer surface of one side of the main body, a handle movably connected to the upper outer surface of the workbench, a liposuction needle fixedly installed at the center position of the handle, a cylinder fixedly installed at the lower outer surface of the workbench, a micro motor fixedly installed at the lower inner center of the cylinder, a rotating drum fixedly connected to the output shaft end of the micro motor, and a plurality of ultraviolet lamps fixedly installed on the inner wall of the rotating drum. The present invention sterilizes the liposuction needle uniformly by rotating the ultraviolet lamp. When the liposuction needle is pulled out of the needle storage tube, the moving block and the needle storage tube form a sealed space to prevent bacteria and dust in the air from entering the needle storage tube when the liposuction needle is pulled out, causing contamination to the inner wall of the needle storage tube. When the liposuction needle is pulled out, the disinfection cotton on the moving block can well disinfect and clean the liposuction needle.

[0004] The above patents and prior art have the following problems: Existing liposuction devices, when processing fat tissue, will, under the influence of fat tissue and connective tissue, cause the liposuction head and the liposuction channel to adhere to each other and become blocked. In addition, liposuction causes lasting damage to the liposuction area, resulting in postoperative bruising and a long recovery period for patients. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A negative pressure liposuction device for medical cosmetic surgery, comprising: An operating unit, the operating unit comprising a mounting plate, the mounting plate being rotatably sleeved on the outside of the fixed sleeve; A negative pressure liposuction unit, wherein the side of the operating unit is fixedly connected with the negative pressure liposuction unit; The negative pressure liposuction unit includes a liquid separation tank, a rotating cylinder is rotatably arranged inside the liquid separation tank, a fixed sleeve is arranged in the middle of the liquid separation tank, a guide rail for guiding the slider to reciprocate up and down is arranged on the surface of the top of the fixed sleeve, a movable rod is fixedly arranged on the top of the slider, a thin rod is fixedly installed on the top of the movable rod, a sealing disc and an empty ring are respectively installed on the upper and lower surfaces of the thin rod, the thin rod is movably arranged inside the discharge port, the top of the rotating cylinder is rotatably connected to a delivery pipe, the rotating cylinder passes through the liquid separation tank and is connected to the cannula through the delivery pipe, the top surface opening of the cannula is movably connected to the surface of the liposuction head, and the center inside the liposuction head is fixedly connected to the bottom surface of the push plate through a control line.

[0007] As a preferred solution of the negative pressure liposuction device for medical cosmetic surgery of the present invention, the operating unit comprises an equipment body, a rotation driving source is installed inside the equipment body, a liquid storage tank 1 and a liquid storage tank 2 are fixedly connected to the side of the equipment body, and the liquid separation tank is connected to the liquid storage tank 2 through an external discharge pipe on the outer side of the bottom surface thereof; A support frame is fixedly connected to the center of a top surface of the liquid storage tank, and a fixing sleeve is fixedly connected to the top surface of the support frame.

[0008] As a preferred solution of the negative pressure liposuction device for medical cosmetic surgery of the present invention, wherein: a support plate is fixedly connected to the surface of the fixed sleeve, a driven pulley is rotatably provided on the top of the support plate, the driven pulley is rotatably sleeved on the surface of the fixed sleeve, and the driven pulley is connected to the pulley on the top of the rotating drive source through a transmission member; The top of the driven pulley rotates through the liquid separation tank and is fixedly connected with the mounting plate.

[0009] As a preferred solution of the negative pressure liposuction device for medical cosmetic surgery of the present invention, wherein: a hollow frame is symmetrically fixedly connected to the surface of the mounting plate, a through slot is arranged inside the hollow frame, a slider is movably arranged inside the through slot, vertical slots connected to the through slot are symmetrically arranged on the left and right sides of the hollow frame, and an insertion rod is slidably arranged inside the vertical slots on the left and right sides, and the insertion rod is fixedly connected to the surface of the slider; The inserting rod on the side opposite to the sliding block and the fixing sleeve is slidably inserted with the guide rail through a rolling cylinder rotating on the surface of the inserting rod.

[0010] As a preferred solution of the negative pressure liposuction device for medical cosmetic surgery of the present invention, wherein: the guide rail comprises two top rails, four connecting rails and two bottom rails, and the distance between the top rail and the rotating cylinder is smaller than the distance between the bottom rail and the rotating cylinder; A connecting rail is connected between the top rail and the bottom rail.

[0011] As a preferred embodiment of the negative pressure liposuction device for medical cosmetic surgery of the present invention, the rotating cylinder comprises a screening section and a sealing section and a bottom plate arranged at the upper and lower ends of the screening section, and a plurality of through holes are evenly distributed on the surface of the screening section; The top surface of the hollow frame is fixedly connected with a chassis, the chassis is conductively connected to a rotating tube through a central transmission port in the middle, the chassis is conductively connected to a liquid storage tank through a rotating tube, and the rotating tube is rotatably arranged inside the fixed sleeve and rotates relative to the liquid storage tank.

[0012] As a preferred solution of the negative pressure liposuction device for medical cosmetic surgery of the present invention, the diameter of the thin rod is smaller than the diameter of the movable rod and the discharge port, the inner side of the empty ring is fixedly connected by a partition rod and the thin rod, and a plurality of through openings are provided between adjacent partition rods and the empty ring; The through port is opposite to the discharge port, and the push disk is movably arranged between the sealing disk and the empty ring.

[0013] As a preferred solution of the negative pressure liposuction device for medical cosmetic surgery of the present invention, the opposite surfaces of the sealing disc and the push disc are covered with a rubber layer, the outer circumferential surface of the push disc is surrounded by a sealing ring, and the push disc is movably clamped in the interior of the screening section and the sealing section through the sealing ring; A stand is fixedly connected to the top surface of the chassis, and a steering roller is rotatably mounted on the side of the stand.

[0014] As a preferred solution of the negative pressure liposuction device for medical cosmetic surgery of the present invention, a sealing block is provided in the middle of the push plate; The push plate is movably connected to the top surface of the liposuction head by a control line fixed on its bottom surface and sequentially passes through the bottom of the steering roller, the middle of the sealing block, the middle of the rotating cylinder, the middle of the conveying tube and the middle of the cannula; The side of the liposuction head is provided with a plurality of suction ports, the side of the cannula opposite to the liposuction head is provided with a groove cavity for accommodating the liposuction head, and the groove cavity is elastically connected with the liposuction head through a resetting member.

[0015] As a preferred solution of the negative pressure liposuction device for medical cosmetic surgery described in the present invention, a one-way tube is arranged between the delivery tube and the sealing section, a sealing ball is fixedly connected to the surface of the control line relative to the one-way tube portion, a blocking plate is arranged obliquely opposite to the bottom of the one-way tube relative to the sealing section, a one-way port is arranged on the inner side of the blocking plate, and the width of the one-way port is smaller than the diameter of the sealing ball.

[0016] Beneficial effects of the present invention: When the slider makes reciprocating motion up and down, it will drive the movable rod on its top to move up and down, and when the movable rod moves downward, the sealing disc on the top of the movable rod will move down to cover the surface of the push plate, so that the sealing disc will seal the discharge port, and then when the movable rod continues to move, the sealing disc will pull the push plate downward to move, so that the sealing disc and the push plate move downward, which will generate suction negative pressure on the delivery pipe and cannula on the top of the sealing section, so that the liposuction head at the front end of the cannula will suck the area that needs liposuction, and the sucked fat will fall into the internal area of ​​the screening section as the push plate moves downward, and will be centrifuged as the rotating drum rotates, so that the water and blood with high density are thrown out, and the fat with relatively low density is retained in the middle of the screening section, so that the thrown water and blood are discharged for the first time through the through holes on the surface of the screening section, thereby realizing negative pressure liposuction centrifugal screening.

[0017] The upward movement of the movable rod will first lift the thin rod, so that the sealing disc is lifted from the top surface of the push plate, and the empty ring is lifted and contacted with the bottom surface of the push plate, so that the thin rod is located inside the discharge port, and the discharge port is not sealed, so that the grease on the top of the push plate is turned over as the push plate is lifted, and the grease on the top of the push plate flows to the bottom of the push plate through the space between the discharge port and the thin rod, and is centrifugally screened again under the rotation of the screening section, thereby improving the separation effect, and the space between the discharge port and the thin rod will also allow air to pass through the top of the push plate as the push plate is lifted, reducing the impact of the lifting of the push plate, and when the push plate moves down again, it will squeeze the grease inside the screening section at the bottom of the push plate, so that the grease flows into the interior of the liquid storage tank one through the rotating tube, and the separated water and blood flow into the liquid storage tank two through the external discharge pipe at the bottom of the liquid separation tank, thereby realizing the initial multi-stage centrifugal screening of liposuction.

[0018] The movable rod drives the push plate to move up and down reciprocatingly, which will intermittently provide suction for liposuction. Therefore, the suction and pulling force on fat and surrounding tissues will be temporarily weakened during intermittent liposuction, thereby reducing the continuous damage to blood vessels, nerves and connective tissues, thereby reducing the degree of bruising, swelling and pain after surgery, and improving the effect of postoperative recovery. In addition, the intermittent suction for liposuction can make the fat flow more smoothly in the liposuction duct, avoiding duct blockage caused by accumulation of fat or tissue fragments.

[0019] When the push plate moves upward, the fixed-length control line at its bottom will rise with the push plate and move further and further away from the steering roller installed on the top surface of the chassis, so that the control line passes through the bottom of the steering roller for deflection and restriction, and the length of the control line between the liposuction head and the steering roller is shortened, and the shortened line is transferred to between the steering roller and the push plate, so that the control line pulling the inside of the liposuction head is retracted, and then the liposuction head is pulled by the control line to be stored in the inside of the groove cavity, so that the reset part is compressed and deformed, and this process also makes it easy to store the liposuction head in the inside of the groove cavity when not in use, thereby reducing pollution to the external environment.

[0020] When the push plate moves downward, the control line on the bottom of the push plate and the steering roller installed on the top of the chassis get closer and closer, so that the control line will be turned by the steering roller, and the state in which the control line pulls the liposuction head to be stored in the groove cavity will be released, so that the liposuction head is pushed by the elastic deformation recovery of the reset part between the liposuction head and the groove cavity, and the length of the control line between the steering roller and the push plate is shortened, so that the liposuction head is protruded from the front end of the cannula, so that when the push plate moves downward to generate negative pressure, the fat layer is sucked through the liposuction head. It should be noted that the protrusion of the liposuction head occurs in the initial section of the downward movement of the push plate, that is, after the liposuction head protrudes from the cannula, the push plate will continue to move downward to provide negative pressure suction.

[0021] The up and down movement of the push plate will drive the liposuction head to reciprocate at the front end of the cannula, so that the reciprocating motion of the liposuction head will reduce the blockage of the suction port and can separate and destroy the fat tissue more quickly and evenly, which allows the fat cells to be sucked into the liposuction head faster. Compared with unidirectional movement, the reciprocating motion can effectively cover a larger area of ​​fat and reduce the time required for multiple back and forth operations, thereby ensuring the intermittent liposuction effect while making up for the problem of decreased liposuction efficiency caused by intermittent liposuction.

[0022] A control line for reciprocatingly pulling the liposuction head is arranged inside the delivery tube, so that the reciprocating control line is pulled by the push plate and pushed by the reset part, combined with the rotational transmission of the universal ball head, so that the control line reciprocates and contacts the fat tissue inside the delivery tube, further enhancing the decomposition effect of the fat tissue, generating more mechanical force on the fat tissue, thereby more efficiently separating and destroying the fat tissue, making it easier to suck out the fat cells. At the same time, the reciprocating control line reduces the possibility of fat particles and tissue fragments clogging the delivery tube during liposuction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following is a brief introduction to the drawings required for describing the embodiment, wherein: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from a side perspective; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A; Figure 4 This is a schematic diagram of the internal structure connection between the delivery tube and the cannula of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part B; Figure 6 This is a schematic diagram of the internal structure connection of the rotating drum of the present invention; Figure 7It is a schematic diagram of the connection of the fixed sleeve structure inside the rotating cylinder of the present invention; Figure 8 for Figure 7 A schematic diagram of the enlarged structure of the middle C part; Fig. 9 for Figure 7 A schematic diagram of the enlarged structure of the D part; Fig.10 This is a schematic diagram of the separation of the chassis and the push plate of the present invention; Fig.11 for Fig. 9 A schematic diagram of the enlarged structure of part E in the middle; Fig.12 This is a schematic diagram of installing a one-way pipe between the delivery pipe and the sealing section of the present invention.

[0024] In the figure: 1. Operation unit; 101. Equipment body; 102. Rotation drive source; 1021. Transmission member; 1022. Driven pulley; 10221. Mounting plate; 103. Liquid storage tank 1; 1031. Rotation tube; 1032. Fixed sleeve; 10321. Bracket; 1033. Support plate; 1034. Guide rail; 10341. Top rail; 10342. Connecting rail; 10343. Bottom rail; 104. External discharge pipe; 105. Liquid storage tank 2; 2. Negative pressure liposuction unit; 201. Liquid separation tank; 202. Delivery tube; 2021. Control line; 20211. Sealing ball; 20212. Universal ball head; 2022. Ring plate; 203. Cannula; 2031. Liposuction head; 20311. Suction port; 2032. Groove; 2033. Reset member; 204. Hollow frame; 2041. Vertical groove; 2042. Sliding block; 20421. Insertion rod; 20422. Rolling cylinder; 2043. Movable rod; 20431. Thin rod; 20 432, sealing disc; 20433, dividing rod; 20434, empty ring; 20435, through port; 205, rotating cylinder; 2051, screening section; 2052, sealing section; 2053, chassis; 20531, middle transmission port; 2054, stand; 20541, steering roller; 2055, rotating ring cavity; 206, push plate; 2061, sealing ring; 2062, sealing block; 2063, discharge port; 207, one-way pipe; 2071, blocking plate; 2072, one-way port. DETAILED DESCRIPTION Example

[0025] like Figure 1-12 As shown, a negative pressure liposuction device for medical cosmetic surgery comprises: The operating unit 1 includes a mounting plate 10221, and the mounting plate 10221 is rotatably sleeved on the outer side of the fixing sleeve 1032; A negative pressure liposuction unit 2, the side of the operating unit 1 is fixedly connected with the negative pressure liposuction unit 2; The negative pressure liposuction unit 2 includes a liquid separation tank 201, which is fixedly connected to the side wall of the equipment body 101, and a rotating cylinder 205 is rotatably arranged inside the liquid separation tank 201. A fixed sleeve 1032 is arranged in the middle of the liquid separation tank 201, and a guide rail 1034 for guiding a slider 2042 to reciprocate up and down is arranged on the surface of the top of the fixed sleeve 1032. A movable rod 2043 is fixedly arranged on the top of the slider 2042, and a thin rod 20431 is fixedly installed on the top of the movable rod 2043. A sealing disc 20432 and an empty ring 20434 are respectively installed on the upper and lower surfaces of the rod 20431. The thin rod 20431 is movably arranged inside the discharge port 2063. The top of the rotating cylinder 205 is rotatably connected to the delivery pipe 202. The rotating cylinder 205 passes through the liquid separation tank 201 and the cannula 203 through the delivery pipe 202. The top surface opening of the cannula 203 is movably connected to the surface of the liposuction head 2031. The center of the liposuction head 2031 is fixedly connected to the bottom surface of the push plate 206 through the control line 2021.

[0026] like Figure 1-2 As shown, the operating unit 1 includes an equipment body 101, a rotation driving source 102 is installed inside the equipment body 101, and the rotation driving source 102 is preferably a servo motor, which is powered by an external power supply and controlled by a PLC. A liquid storage tank 103 and a liquid storage tank 2 105 are fixedly connected to the side of the equipment body 101, and the liquid separation tank 201 is connected to the liquid storage tank 2 105 through an external pipe 104 on the outer side of its bottom surface; A support frame 10321 is fixedly connected to the center of the top surface of the liquid storage tank 103 , and a fixing sleeve 1032 is fixedly connected to the top surface of the support frame 10321 .

[0027] like Figure 3 and Figure 6 As shown, the surface of the fixed sleeve 1032 is fixedly connected with a support plate 1033, and the top of the support plate 1033 is rotatably provided with a driven pulley 1022, and the support plate 1033 is preferably movably connected with the driven pulley 1022 through a ball movably embedded in the surface thereof, and the driven pulley 1022 is rotatably sleeved on the surface of the fixed sleeve 1032, and the driven pulley 1022 is connected to the pulley at the top of the rotating drive source 102 through the transmission member 1021; The top of the driven pulley 1022 rotates through the liquid separation tank 201 and is fixedly connected to the mounting plate 10221 .

[0028] like Figure 6-9As shown, the surface of the mounting plate 10221 is symmetrically fixedly connected with a hollow frame 204, the interior of the hollow frame 204 is provided with a through slot, the interior of the through slot is movably provided with a slider 2042, the left and right sides of the hollow frame 204 are symmetrically provided with vertical slots 2041 conductively connected with the through slot, the interior of the vertical slots 2041 on the left and right sides are slidably provided with plug rods 20421, and the plug rods 20421 are fixedly connected to the surface of the slider 2042; The inserting rod 20421 on the side opposite to the slider 2042 and the fixing sleeve 1032 is slidably plugged with the guide rail 1034 through the rolling cylinder 20422 rotating on the surface thereof, and a gap is provided between the top of the fixing sleeve 1032 and the bottom of the rotating cylinder 205 .

[0029] like Figure 6-9 As shown, the guide rail 1034 includes two top rails 10341, four connecting rails 10342 and two bottom rails 10343, and the distance between the top rail 10341 and the rotating cylinder 205 is smaller than the distance between the bottom rail 10343 and the rotating cylinder 205; A connecting rail 10342 is connected between the top rail 10341 and the bottom rail 10343 .

[0030] The top rail 10341, the connecting rail 10342 and the bottom rail 10343 are closed into a guide rail 1034, so that the two top rails 10341 and the two bottom rails 10343 are symmetrically arranged on the surface of the fixed sleeve 1032, and the connecting rails 10342 are symmetrically arranged on the left and right sides of the top rail 10341 and the bottom rail 10343, so that the rolling cylinder 20422 can circulate inside the guide rail 1034 and realize opposite movements in the connecting rails 10342 on the left and right sides of the top rail 10341 and the bottom rail 10343, that is, the rolling cylinder 20422 is lifted and moved in the connecting rail 10342 on one side of the top rail 10341 and the bottom rail 10343, and then moves to the connecting rail 10342 on the other side of the top rail 10341 and the bottom rail 10343 to make a downward movement.

[0031] When the slider 2042 inside the symmetrical hollow frame 204 is connected to the guide rail 1034 through the insertion rod 20421 and the rolling cylinder 20422, the rolling cylinder 20422 is symmetrically arranged on the side of the guide rail 1034, that is, when the rolling cylinder 20422 of the hollow frame 204 on one side is located inside a bottom rail 10343, the rolling cylinder 20422 of the hollow frame 204 on the other side is located inside another bottom rail 10343. Of course, when the rolling cylinder 20422 is located at the position of a top rail 10341 or a connecting rail 10342, the rolling cylinder 20422 of the hollow frame 204 on the other side is located at the position of another top rail 10341 or a connecting rail 10342.

[0032] like Figure 6-9As shown, the rotating drum 205 includes a screening segment 2051 and a sealing segment 2052 and a bottom plate 2053 provided at the upper and lower ends of the screening segment 2051. A plurality of through holes are evenly distributed on the surface of the screening segment 2051. The top surface of the hollow frame 204 is fixedly connected with a chassis 2053, and the chassis 2053 is conductively connected to the rotating tube 1031 through a central transmission port 20531, and the chassis 2053 is conductively connected to the liquid storage tank 103 through the rotating tube 1031, and the rotating tube 1031 is rotatably arranged inside the fixed sleeve 1032 and rotates relative to the liquid storage tank 103.

[0033] like Figure 6-10 As shown, the diameter of the thin rod 20431 is smaller than the diameter of the movable rod 2043 and the discharge port 2063, the inner side of the empty ring 20434 is fixedly connected by the partition rod 20433 and the thin rod 20431, and a plurality of through holes 20435 are provided between adjacent partition rods 20433 and the empty ring 20434; The through opening 20435 is opposite to the discharge opening 2063 , and the push plate 206 is movably arranged between the sealing disc 20432 and the empty ring 20434 .

[0034] like Figure 6-10 As shown, the opposite surface of the sealing disc 20432 and the push disc 206 is covered with a rubber layer, and the outer circumferential surface of the push disc 206 is surrounded by a sealing ring 2061, and the push disc 206 is movably clamped in the inside of the screening section 2051 and the sealing section 2052 through the sealing ring 2061; The movable rod 2043 moves through the hollow frame 204 and the chassis 2053 and is connected to the thin rod 20431. The chassis 2053 is provided with a sealing ring relative to the movable rod 2043, the top of the driven pulley 1022 is provided with a sealing ring relative to the liquid separation tank 201, and the rotating tube 1031 is provided with a sealing ring relative to the liquid storage tank 103.

[0035] A stand 2054 is fixedly connected to the top surface of the chassis 2053 , and a steering roller 20541 is rotatably mounted on the side of the stand 2054 . The length of the steering roller 20541 is greater than the diameter of the discharge port 2063 .

[0036] The combined diameters of the push plate 206 and the sealing ring 2061 are greater than the diameters of the sealing section 2052 and the screening section 2051 , so that when the push plate 206 is not in contact with the sealing disc 20432 and the empty ring 20434 , the push plate 206 is clamped in the screening section 2051 or the sealing section 2052 through the sealing ring 2061 .

[0037] Operation process: The doctor inserts the front end of the cannula 203 through the pre-opened incision, and simultaneously inserts the cannula 203 and the liposuction head 2031 whose front end is received in the groove 2032 inside the cannula 203 into the fat layer, thus completing the preparation before liposuction. The rotary drive source 102 is started again, so that the rotary drive source 102 drives the driven pulley 1022 to rotate through the transmission member 1021, and the rotation of the driven pulley 1022 drives the mounting plate 10221 on the top thereof to rotate synchronously, and the rotation of the mounting plate 10221 drives the hollow frame 204 to rotate around the fixed sleeve 1032 and drives the rotating cylinder 205 on the top of the hollow frame 204 to rotate synchronously, and when the hollow frame 204 rotates, the slider 2042 inside the through groove thereof is inserted into the inside of the guide rail 1034 through the insertion rod 20421 and the rolling cylinder 20422, and as the hollow frame 204 rotates, the rolling cylinder 20422 drives the insertion rod 20421 to roll inside the guide rail 1034; The guide rail 1034 is composed of a top rail 10341, a connecting rail 10342 and a bottom rail 10343. When the rolling cylinder 20422 drives the insertion rod 20421 to move to the top rail 10341, the slider 2042 moves to the top of the through slot of the hollow frame 204. When the rolling cylinder 20422 drives the insertion rod 20421 to move to the bottom rail 10343, the slider 2042 moves to the bottom end of the through slot of the hollow frame 204. When the rolling cylinder 20422 drives the insertion rod 20421 to move to the connecting rail 10342, the rolling cylinder 20422 drives the insertion rod 20421 to transfer between the top rail 10341 and the bottom rail 10343, and drives the slider 2042 to move between the top and bottom ends of the through slot of the hollow frame 204, thereby moving the hollow frame 204 around When the fixed sleeve 1032 rotates, it will drive the rolling cylinder 20422 and the insertion rod 20421 to move between the top rail 10341, the connecting rail 10342 and the bottom rail 10343, thereby driving the slider 2042 to move back and forth up and down inside the through groove of the hollow frame 204, that is, the rolling cylinder 20422 drives the insertion rod 20421 to move from the bottom rail 10343 to the top rail 10341, and the slider 2042 moves from the bottom end to the top end inside the through groove, while the rolling cylinder 20422 drives the insertion rod 20421 to move from the top rail 10341 to the bottom rail 10343, and the slider 2042 moves from the top end to the bottom end inside the through groove, thereby driving the insertion rod 20421 to transfer between the two sets of top rails 10341 and the two sets of bottom rails 10343 through the rolling cylinder 20422.

[0038] When the slider 2042 reciprocates up and down, it drives the movable rod 2043 at the top thereof to move up and down; When the movable rod 2043 moves downward, the sealing disc 20432 on the top of the movable rod 2043 moves downward to cover the surface of the push plate 206, so that the sealing disc 20432 seals the discharge port 2063. Then, when the movable rod 2043 continues to move, the sealing disc 20432 pulls the push plate 206 to move downward, so that the sealing disc 20432 and the push plate 206 move downward, which will generate suction negative pressure on the top of the delivery tube 202 and the insertion tube 203 inside the sealing section 2052, so that the liposuction head 2031 at the front end of the insertion tube 203 suctions the area where liposuction is required. The sucked fat will fall into the inner area of ​​the screening section 2051 as the push plate 206 moves downward, and will be centrifuged as the rotating drum 205 rotates, so that the water and blood with high density are thrown out, and the fat with relatively low density is retained in the middle of the screening section 2051, so that the thrown water and blood are discharged for the first time through the through holes on the surface of the screening section 2051, thereby realizing negative pressure liposuction centrifugal screening; It should be noted that the area of ​​the sealing disc 20432 is larger than the area of ​​the discharge port 2063 , so that when the push disc 206 moves downward as the rotating cylinder 205 rotates under the pull of the thin rod 20431 , the sealing disc 20432 covers and seals the discharge port 2063 .

[0039] When the movable rod 2043 moves upward, the thin rod 20431 is lifted first, so that the sealing disc 20432 is lifted from the top surface of the push plate 206, and the empty ring 20434 is lifted to contact the bottom surface of the push plate 206, so that the thin rod 20431 is located inside the discharge port 2063, so that the discharge port 2063 is not sealed, so that the grease on the top of the push plate 206 is turned over with the lifting of the push plate 206, so that the grease on the top of the push plate 206 flows through the space between the discharge port 2063 and the thin rod 20431 to the bottom of the push plate 206, and then rotates under the rotation of the screening section 2051. The centrifugal screening improves the separation effect, and the space between the discharge port 2063 and the thin rod 20431 will also allow air to pass through the top of the push plate 206 as the push plate 206 is lifted, reducing the impact of the lifting of the push plate 206. When the push plate 206 moves down again, it will squeeze the grease inside the screening section 2051 at the bottom of the push plate 206, so that the grease flows into the inside of the liquid storage tank 1 103 through the rotating tube 1031, and the separated water and blood will flow into the liquid storage tank 2 105 through the external discharge pipe 104 at the bottom of the liquid separation tank 201, thereby realizing the initial multi-stage centrifugal screening of liposuction; The movable rod 2043 drives the push plate 206 to move up and down reciprocatingly, which will intermittently provide suction for liposuction, so that the suction and pulling force on fat and surrounding tissues will be temporarily weakened during intermittent liposuction, thereby reducing the continuous damage to blood vessels, nerves and connective tissues, thereby reducing the degree of postoperative bruising, swelling and pain, and improving the effect of postoperative recovery. In addition, the intermittent provision of suction for liposuction can make the fat flow more smoothly in the liposuction channel, avoiding channel blockage caused by accumulation of fat or tissue fragments. Example

[0040] Reference Figure 4-12 As shown, this embodiment is different from the first embodiment in that: like Figure 4-10 As shown, a sealing block 2062 is provided in the middle of the push plate 206, and the sealing ring 2061, the sealing block 2062 and the sealing ring are preferably made of rubber material. Through the rubber material of the sealing ring 2061, the push plate 206 is elastically clamped inside the sealing section 2052 and the screening section 2051, which facilitates the passive up and down reciprocating movement of the push plate 206; The push plate 206 is movably connected to the top surface of the liposuction head 2031 through the control line 2021 fixed on the bottom surface of the push plate 206. The control line 2021 passes through the bottom of the steering roller 20541, the middle of the sealing block 2062, the middle of the rotating cylinder 205, the middle of the delivery tube 202 and the middle of the cannula 203 in sequence. It should be noted that the control line 2021 is preferably rotatably connected to the top surface of the liposuction head 2031 through a universal ball head 20212 made of antibacterial plastic material, that is, the top surface of the liposuction head 2031 is installed with a universal ball head 20212, and the center of the universal ball head 20212 is fixedly connected with the control line 2021, so that the control line 2021 follows the rotation of the rotating cylinder 205 and pulls the liposuction head 2031 to move longitudinally. The side of the liposuction head 2031 is provided with a plurality of suction ports 20311 , and the side of the cannula 203 opposite to the liposuction head 2031 is provided with a groove 2032 for accommodating the liposuction head 2031 , and the groove 2032 is elastically connected to the liposuction head 2031 via a reset member 2033 , and the reset member 2033 is preferably a spring.

[0041] like Figure 11-12 As shown, a one-way tube 207 is arranged between the conveying tube 202 and the sealing section 2052, and a sealing ball 20211 is fixedly connected to the surface of the control line 2021 relative to the one-way tube 207. A blocking plate 2071 is arranged obliquely opposite to the bottom of the one-way tube 207 relative to the sealing section 2052, and a one-way port 2072 is arranged on the inner side of the blocking plate 2071, and the width of the one-way port 2072 is smaller than the diameter of the sealing ball 20211.

[0042] The control line 2021 is composed of a hose connected to the cannula 203 and a hard tube connected to the sealing section 2052, and the hard tube is installed inside the liquid separation tank 201. The ring plate 2022 at the bottom of the hard tube of the control line 2021 is rotatably engaged with the inside of the rotating ring cavity 2055 at the top of the sealing section 2052. A ball is rotatably arranged between the ring plate 2022 and the rotating ring cavity 2055. The ball is movably embedded in the surface of the rotating ring cavity 2055, so that the sealing section 2052 rotates relative to the ring plate 2022. A rotating annular cavity 2055 is installed at the top of the one-way tube 207, so that the ring plate 2022 at the bottom of the hard tube of the ring plate 2022 can rotate inside the rotating annular cavity 2055 at the top of the one-way tube 207, so that the delivery tube 202 can rotate relative to the one-way tube 207.

[0043] The rest of the structure is the same as that of the first embodiment.

[0044] Operation process: When the push plate 206 moves upward, the fixed-length control line 2021 at its bottom will rise with the push plate 206 and get farther and farther away from the steering roller 20541 installed on the top surface of the chassis 2053, so that the control line 2021 passes through the bottom of the steering roller 20541 to be turned and restricted, so that the length of the control line 2021 between the liposuction head 2031 and the steering roller 20541 is shortened, and the shortened line is transferred to between the steering roller 20541 and the push plate 206, so that the control line 2021 pulling the inside of the liposuction head 2031 is retracted, and then the liposuction head 2031 is pulled by the control line 2021 to be stored in the groove cavity 2032, so that the reset member 2033 is compressed and deformed. This process also facilitates the liposuction head 2031 to be stored in the groove cavity 2032 when not in use, thereby reducing pollution to the external environment. When the push plate 206 moves downward, the control line 2021 on the bottom surface of the push plate 206 and the steering roller 20541 installed on the top surface of the chassis 2053 get closer and closer, so that the control line 2021 can be turned by the steering roller 20541, so that the state in which the control line 2021 pulls the liposuction head 2031 to be stored in the groove cavity 2032 is released, so that the liposuction head 2031 and the steering roller 20541 are pushed by the elastic deformation recovery of the reset member 2033 between the liposuction head 2031 and the groove cavity 2032. The length of the control line 2021 between the steering roller 20541 and the push plate 206 is released, and the length of the control line 2021 between the steering roller 20541 and the push plate 206 is shortened, so that the liposuction head 2031 protrudes from the front end of the cannula 203, so that when the push plate 206 moves downward to generate negative pressure, the fat layer is sucked through the liposuction head 2031. It should be noted that the protrusion of the liposuction head 2031 occurs at the initial stage of the downward movement of the push plate 206, that is, after the liposuction head 2031 protrudes from the cannula 203, the push plate 206 will continue to move downward to provide negative pressure suction; The up and down movement of the push plate 206 drives the liposuction head 2031 to reciprocate at the front end of the cannula 203, so that the reciprocating movement of the liposuction head 2031 can reduce the blockage of the suction port 20311, and can separate and destroy fat tissue more quickly and evenly, so that fat cells can be sucked into the liposuction head 2031 more quickly. Compared with unidirectional movement, the reciprocating movement can effectively cover a larger area of ​​fat and reduce the time required for multiple back and forth operations, thereby ensuring the intermittent liposuction effect while compensating for the problem of reduced liposuction efficiency caused by intermittent liposuction. A control line 2021 is arranged inside the delivery tube 202 to reciprocately pull the liposuction head 2031. Under the pulling of the push plate 206 and the pushing of the reset member 2033, the reciprocating control line 2021 is combined with the rotation transmission of the universal ball head 20212 to make the control line 2021 reciprocately contact the fat tissue inside the delivery tube 202, thereby further enhancing the decomposition effect of the fat tissue and generating more mechanical force on the fat tissue, thereby more efficiently separating and destroying the fat tissue and making it easier to suck out the fat cells. At the same time, the reciprocating control line 2021 reduces the possibility that fat particles and tissue fragments may clog the delivery tube 202 during liposuction.

[0045] In order to further reduce the upward movement of the push plate 206 and drive the air into the interior of the delivery tube 202, a one-way tube 207 can be installed between the sealing section 2052 and the delivery tube 202, and a sealing ball 20211 can be installed on the surface of the control line 2021. Then, in the front section of the movement in which the push plate 206 moves upward and drives the control line 2021 to move downward, that is, after the push plate 206 moves upward and pulls the liposuction head 2031 to retract into the groove cavity 2032, the downward movement of the control line 2021 will drive the sealing ball 2021 to move to the inside of the one-way port 2072 to seal between the delivery tube 202 and the sealing section 2052, and the liposuction head 2031 is stored in the interior of the groove cavity 2032, which is also a seal for the interior of the delivery tube 202. The push plate 206 will continue to move upward at the bottom of the sealing ball 20211, that is, the control line 2021 between the sealing ball 20211 and the push plate 206 is made of elastic material. The control line 2021 at the bottom of the sealing ball 20211 is stretched, thereby reducing the amount of excess air entering the push plate 206 into the interior of the delivery pipe 202 during the subsequent process, and supplementing the exhaust of the space between the exhaust port 2063 and the thin rod 20431 when the push plate 206 moves upward. Of course, for better results, a micro air pump and an air storage tank can be installed outside the top tip of the sealing section 2052, and a conduit is arranged between the micro air pump and the sealing section 2052, and an electromagnetic valve is arranged on the conduit, which is opened when the push plate 206 moves upward and closed when the push plate 206 moves downward, and a pressure sensor is installed inside the rotating cylinder 205. When the push plate 206 moves upward, the air pressure caused by the additional air generated is detected by the pressure sensor relative to the air pressure change when the push plate 206 moves downward, so that the micro air pump is started, and the additional air will be drawn into the interior of the air storage pipe by the air pump, which can further improve the applicability of the equipment.

Claims

1. A negative pressure liposuction device for medical cosmetic surgery, characterized in that: include: An operating unit (1), the operating unit (1) comprising a mounting plate (10221), the mounting plate (10221) being rotatably sleeved on the outside of a fixed sleeve (1032); A negative pressure liposuction unit (2), wherein the side of the operating unit (1) is fixedly connected to the negative pressure liposuction unit (2); The negative pressure liposuction unit (2) comprises a liquid separation tank (201), a rotating cylinder (205) is rotatably arranged inside the liquid separation tank (201), a fixed sleeve (1032) is arranged in the middle of the liquid separation tank (201), a guide rail (1034) for guiding a slider (2042) to reciprocate up and down is arranged on the surface of the top of the fixed sleeve (1032), a movable rod (2043) is fixedly arranged on the top of the slider (2042), a thin rod (20431) is fixedly installed on the top of the movable rod (2043), and the upper and lower surfaces of the thin rod (20431) are respectively provided with A sealing disc (20432) and an empty ring (20434) are provided, the thin rod (20431) is movably arranged inside the discharge port (2063), the top of the rotating cylinder (205) is rotatably connected to a delivery pipe (202), the rotating cylinder (205) passes through the liquid separation tank (201) and is connected to the insertion pipe (203) through the delivery pipe (202), the top opening of the insertion pipe (203) is movably connected to the surface of the liposuction head (2031), and the center inside the liposuction head (2031) is fixedly connected to the bottom surface of the push plate (206) through a control line (2021).

2. The negative pressure liposuction device for medical cosmetic surgery according to claim 1, characterized in that: The operating unit (1) comprises an equipment body (101), a rotation driving source (102) is installed inside the equipment body (101), a liquid storage tank 1 (103) and a liquid storage tank 2 (105) are fixedly connected to the side of the equipment body (101), and the liquid separation tank (201) is conductively connected to the liquid storage tank 2 (105) via an external discharge pipe (104) on the outer side of its bottom surface; A support frame (10321) is fixedly connected to the center of the top surface of the first liquid storage tank (103), and a fixing sleeve (1032) is fixedly connected to the top surface of the support frame (10321).

3. The negative pressure liposuction device for medical cosmetic surgery according to claim 2, characterized in that: The surface of the fixed sleeve (1032) is fixedly connected to a support plate (1033); the top of the support plate (1033) is rotatably provided with a driven pulley (1022); the driven pulley (1022) is rotatably sleeved on the surface of the fixed sleeve (1032); the driven pulley (1022) is connected to the pulley at the top of the rotary drive source (102) through a transmission member (1021); The top of the driven pulley (1022) rotates through the liquid separation tank (201) and is fixedly connected to the mounting plate (10221).

4. The negative pressure liposuction device for medical cosmetic surgery as claimed in claim 3, characterized in that: The surface of the mounting plate (10221) is symmetrically fixedly connected with a hollow frame (204); a through slot is provided inside the hollow frame (204); a slider (2042) is movably installed inside the through slot; vertical slots (2041) conductively connected to the through slot are symmetrically provided on the left and right sides of the hollow frame (204); an insertion rod (20421) is slidably provided inside the vertical slots (2041) on the left and right sides; the insertion rod (20421) is fixedly connected to the surface of the slider (2042); The insertion rod (20421) on the side opposite to the slider (2042) and the fixing sleeve (1032) is slidably plugged into the guide rail (1034) via a rolling cylinder (20422) rotating on its surface.

5. The negative pressure liposuction device for medical cosmetic surgery as claimed in claim 3, characterized in that: The guide rail (1034) comprises two top rails (10341), four connecting rails (10342) and two bottom rails (10343) which are closed together, and the distance between the top rail (10341) and the rotating cylinder (205) is smaller than the distance between the bottom rail (10343) and the rotating cylinder (205); A connecting rail (10342) is connected between the top rail (10341) and the bottom rail (10343).

6. The negative pressure liposuction device for medical cosmetic surgery according to claim 4, characterized in that: The rotating cylinder (205) comprises a screening section (2051), a sealing section (2052) and a bottom plate (2053) arranged at the upper and lower ends of the screening section (2051), and a plurality of through holes are evenly distributed on the surface of the screening section (2051); The top surface of the hollow frame (204) is fixedly connected to a chassis (2053); the chassis (2053) is conductively connected to a rotating tube (1031) via a central transmission port (20531) in the middle; the chassis (2053) is conductively connected to a liquid storage tank (103) via the rotating tube (1031); and the rotating tube (1031) is rotatably arranged inside the fixed sleeve (1032) and rotates relative to the liquid storage tank (103).

7. The negative pressure liposuction device for medical cosmetic surgery according to claim 6, characterized in that: The diameter of the thin rod (20431) is smaller than the diameter of the movable rod (2043) and the discharge port (2063); the inner side of the empty ring (20434) is fixedly connected to the thin rod (20431) via the partition rod (20433); and a plurality of through holes (20435) are provided between adjacent partition rods (20433) and the empty ring (20434); The through port (20435) is opposite to the discharge port (2063), and the push plate (206) is movably arranged between the sealing disc (20432) and the empty ring (20434).

8. The negative pressure liposuction device for medical cosmetic surgery according to claim 7, characterized in that: The surfaces of the sealing disc (20432) and the push disc (206) facing each other are covered with a rubber layer, the outer circumferential surface of the push disc (206) is surrounded by a sealing ring (2061), and the push disc (206) is movably clamped inside the screening section (2051) and the sealing section (2052) via the sealing ring (2061); The top surface of the chassis (2053) is fixedly connected to a stand (2054), and a steering roller (20541) is rotatably mounted on the side of the stand (2054).

9. The negative pressure liposuction device for medical cosmetic surgery according to claim 8, characterized in that: A sealing block (2062) is provided in the middle of the push plate (206); The push plate (206) is movable through the bottom of the steering roller (20541), the middle of the sealing block (2062), the middle of the rotating cylinder (205), the middle of the conveying tube (202) and the middle of the insertion tube (203) in sequence through a control line (2021) fixed on the bottom surface thereof, and is movably connected to the top surface inside the liposuction head (2031); The liposuction head (2031) is provided with a plurality of suction ports (20311) on its side, and the cannula (203) is provided with a groove (2032) for accommodating the liposuction head (2031) on its side opposite to the liposuction head (2031), and the groove (2032) is elastically connected to the liposuction head (2031) via a resetting member (2033).

10. The negative pressure liposuction device for medical cosmetic surgery according to claim 9, characterized in that: A one-way tube (207) is provided between the delivery tube (202) and the sealing section (2052); a sealing ball (20211) is fixedly connected to the surface of the portion of the control line (2021) relative to the one-way tube (207); a blocking plate (2071) is provided on the one-way tube (207) at an angle relative to the bottom of the sealing section (2052); a one-way opening (2072) is provided on the inner side of the blocking plate (2071); and the width of the one-way opening (2072) is smaller than the diameter of the sealing ball (20211).

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