CN113730727A

CN113730727A - Collagen fragmentation injection system

Info

Publication number: CN113730727A
Application number: CN202111081361.XA
Authority: CN
Inventors: 肖成名; 李保艳
Original assignee: Individual
Current assignee: Shenzhen Jinsheng Medical Technology Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2021-12-03
Anticipated expiration: 2041-09-15
Also published as: CN113730727B

Abstract

The invention belongs to the technical field of injectors, and particularly relates to a collagen fragmentation injection system; the syringe comprises a syringe, a needle head and a liquid pushing system, wherein the liquid pushing system comprises a fixed plate, a rubber plug, a sieve plate and a push rod; according to the collagen injection device, the fixed plate is clamped in the second groove, the fixed plate and the rubber plug are fixed, the first rod is pulled to enable the second rod to be attracted by the magnet, the fixation among the push rod, the fixed plate and the rubber plug is released, the push rod can drive the sieve plate to move up and down, the collagen is cracked, after the cracking is finished, the first rod is pushed to enable the second rod to be inserted into the fourth groove again, the fixation of the second groove on the fixed plate is released, the push rod can drive the fixed plate, the rubber plug and the sieve plate to move together, and the collagen is injected.

Description

Collagen fragmentation injection system

Technical Field

The invention belongs to the technical field of injectors, and particularly relates to a collagen fragmentation injection system.

Background

Collagen is a biological macromolecule, is the main component in the connective tissue of animals, is also the functional protein with the largest content and the widest distribution in mammals, accounts for 25 to 30 percent of the total amount of protein, and even reaches more than 80 percent of certain organisms; the types of collagen are more, and the common types are I type, II type, III type, V type and XI type; collagen has good biocompatibility, biodegradability and bioactivity, so that the collagen is widely applied to the fields of food, medicine, tissue engineering, cosmetics and the like, and therefore, the collagen injection is adopted in the cosmetic industry.

During the injection process, in order to smoothly deliver collagen fibrils, the inner diameter of the needle head must be larger than tens of micrometers, and a 27G-specification hand needle is generally recommended; since the collagen implant is extracted from the pigskin, the length of collagen fibrils cannot be precisely controlled; in order to avoid blocking the needle head, a hand needle with the specification of 25G is also used in the actual injection process; the order of magnitude of the diameter of the hand needle is equivalent to the thickness of the skin, which is about 10 times of the diameter of human pores, so that the experience of patients who bleed and receive subcutaneous injections is poor, and the injection process is difficult to be accurately controlled; to achieve the same level of fine injection as water-jet needles, using 34G gauge needles and even finer array needles, collagen fibrils in collagen implants must be fragmented to a length no greater than a few microns.

Also appeared a patent among the prior art and had about a cracked technical scheme who injects of collagen, for CN202010425886X provides a cracked injection device of collagen as application number, including just end injection device, terminal injection device, middle part intercommunication pipeline and set up in the tip sieve at middle part intercommunication pipeline both ends, the tip sieve is equipped with the sieve hole of cutting that is used for shredding, the tip sieve set up in inside the middle part intercommunication pipeline, the both ends of middle part intercommunication pipeline respectively with just end injection device with terminal injection device intercommunication, implant process just end injection device or terminal injection device pushes middle part intercommunication pipeline flows through the tip sieve carries out the fibre fragmentation. During use, the primary injection device or the terminal injection device is driven to enable the implant to pass through the end sieve plate back and forth, so that collagen fibrils are broken into smaller fragments, and more accurate sub-epidermal implantation and uniform distribution after implantation are facilitated; however, the scheme has the defects that the collagen is extruded into the middle pipeline, the sieve plate is arranged in the middle pipeline, so that the collagen is cracked through the sieve plate, the collagen is remained in the middle pipeline inevitably to cause waste, and the two ends are matched to complete chopping, so that the operation is difficult; if the collagen is directly taken out and injected after the cutting is finished, the working procedures are increased, and if the collagen is directly injected through the device, on one hand, the operation is difficult, and on the other hand, the collagen must be injected into the dermis, so that great challenge is brought to the accurate injection of medical staff; so that the technical solution is limited.

In view of the above, the present invention provides a collagen fragmentation injection system to solve the above technical problems.

Disclosure of Invention

In order to make up the defects of the prior art and solve the problems of collagen fragmentation and convenient operation, the invention provides a collagen fragmentation injection system.

The technical scheme adopted by the invention for solving the technical problems is as follows: a collagen fragmentation injection system comprises a needle cylinder, a needle head and a liquid pushing system; the inner surface of the side wall of the needle cylinder is vertically provided with a first groove, the inner surface of the side wall of the needle cylinder is horizontally provided with a plurality of second grooves, and the first groove is communicated with the second grooves; a liquid outlet pipe is arranged at the center of the bottom of the needle cylinder, a valve is arranged in the middle of the liquid outlet pipe, and a needle head is nested at the bottom of the liquid outlet pipe; the liquid pushing system comprises a fixed plate, a rubber plug, a sieve plate and a push rod; a fixed plate is nested on the inner surface of the side wall of the needle cylinder, and a cylindrical rod protrudes from the side wall of the fixed plate; the bottom of the fixed plate is rotatably connected with a rubber plug, the sieve plate is positioned at the bottom of the rubber plug and is embedded in the inner surface of the side wall of the needle cylinder, and the fixed plate, the rubber plug and the sieve plate are in close contact with the inner surface of the side wall of the needle cylinder and the first groove; the push rod penetrates through the fixed plate and the rubber plug and is rotatably connected with the central part of the top of the sieve plate, and scales are arranged on the part of the side wall of the push rod, which is close to the fixed plate, and the upper surface of the fixed plate; the part of the push rod, which is close to the top, is provided with a third groove, the push rod is hollow and is provided with a first rod, the third groove is exposed at the top of the first rod, a magnet is arranged at the position of the first rod, which is close to the bottom, and the top of the magnet is in arc transition with the first rod; the position level that the push rod is close to the bottom is provided with the passageway, closely nested No. two poles in the passageway, the position that the fixed plate hugs closely with the push rod is provided with No. four grooves.

When the rubber plug is in work, the second rod is nested in the channel and can enter the fourth groove, and the fixed plate is rotatably connected with the rubber plug, namely the fixed plate and the rubber plug can rotate relative to each other and can not move relative to each other; pulling the push rod, enabling the fixed plate, the rubber plug and the sieve plate to move upwards in a manner of clinging to the inner wall of the needle cylinder and the first groove, sucking collagen to be injected into the needle cylinder, stopping pulling the push rod when the required amount is reached, horizontally rotating the push rod, rotatably connecting the push rod with the sieve plate, and enabling the push rod to rotate relative to the sieve plate; the fixed plate is connected with the rubber plug in a rotating mode, so that the fixed plate rotates, the columnar rod protrudes out of the side wall of the fixed plate, the columnar rod is clamped into the second groove by the rotation of the fixed plate, and the second groove is horizontally arranged, so that the second groove limits the vertical movement of the fixed plate and the rubber plug; the needle head is moved out of the collagen liquid after the push rod is rotated, and the valve on the liquid outlet pipe is closed; if the amount of the collagen to be sucked does not correspond to the position of the second groove, the columnar rod on the side wall of the fixing plate can be firstly clamped into the second groove, and the collagen is sucked for multiple times; after the valve is closed, the first rod is pulled to expose the part of the third groove, the first rod is moved upwards, when the first rod is not moved upwards, the second rod is contacted with the side wall of the first rod, the radius of the first rod at the contact point is large, the first rod is moved upwards, the moving distance just enables the magnet on the first rod to be right opposite to the second rod, the second rod is made of a material capable of being adsorbed by the magnet, so the second rod is attracted by the magnet, and because the radius of the first rod at the magnet is small, the second rod can move towards the direction of the magnet and is contacted with the magnet, at the moment, the second rod is pulled out of the fourth groove, but the second rod is still in the channel, and the end part of the second rod is flush with the port of the channel, which is far away from the first rod; the fixed plate, the rubber plug and the push rod are not fixed, and the fixed plate and the rubber plug are fixed on the side wall of the needle cylinder, so that the push rod can move relative to the fixed plate and the rubber plug, and the push rod is rotatably connected with the central position of the sieve plate, so that the sieve plate can be driven to move up and down by pushing and pulling the push rod, the fixed plate and the rubber plug cannot move, and the sieve plate is provided with sieve cutting holes except for the connecting part with the push rod, and collagen can be crushed by penetrating through the sieve cutting holes; therefore, the push rod is pushed and pulled to move the sieve plate up and down, and the operation is repeated for a plurality of times, so that the collagen penetrates through the sieve cutting holes as much as possible to cut the collagen; after the chopping process is finished, the push rod is pulled upwards to enable the sieve plate to be tightly attached to the rubber plug, the first rod is pushed to expose the part of the third groove, the first rod moves downwards, the second rod in the channel moves in an arc transition mode along the top of the magnet and the first rod, the second rod is contacted with the side wall with the large radius of the first rod, the first rod can push the second rod to move to the fourth groove in the process, the push rod is continuously fixed with the fixed plate and the rubber plug, the push rod is rotated to enable the columnar rod on the side wall of the fixed plate to move out of the second groove at the moment, the fixed plate and the rubber plug can move up and down, and therefore the push rod is pushed, the fixed plate, the rubber plug and the sieve plate can move up and down simultaneously, the valve is opened, and the push rod is pushed to inject the crushed collagen into a human body; and the position of the side wall of the push rod close to the fixed plate and the upper surface of the fixed plate are provided with scales, when the scales on the side wall of the push rod are completely coincided with the scales on the fixed plate, the second rod can be smoothly clamped into the fourth groove, so that whether the scales are coincided or not can be observed, and the situation that the second rod cannot be inserted into the fourth groove due to the fact that the push rod rotates when moving up and down is avoided. The middle push rod is tightly contacted with the rubber plug, the rubber plug is tightly contacted with the side wall of the needle cylinder, the inner wall of the first groove, the second rod is tightly contacted with the inner wall of the channel, and the contact part of the channel and the second rod is provided with a material which is the same as the material of the rubber plug; to ensure that the collagen will not leak out in the syringe.

Preferably, a groove is formed in the position, located at the bottom, of the first rod, and the groove is located above the arc-shaped transition portion of the first rod and the magnet on the first rod.

When the push rod drives the fixing plate, the rubber plug and the sieve plate to move together, the second rod is just clamped in the groove, and the second rod can be stably abutted against the first rod and is not easy to slide; and probably the circumstances that No. two poles and magnet attract each other can take place, makes No. one pole automatic shift up, sets up No. two poles card in the recess, has reduced the emergence of this type of circumstances relatively.

Preferably, the part of the push rod close to the bottom is provided with an arc-shaped bulge, and the arc-shaped bulge is annularly distributed around the push rod.

The during operation, the position that the push rod is close to the bottom is provided with the arc arch, the arc arch is the annular distribution around the push rod, drive the fixed plate when the push rod, plug and sieve move jointly, the protruding card of arc is inside the plug, this sets up and makes plug and the protruding extrusion of arc, make resistance grow between plug and the arc arch, the atress of No. two poles has been shared, make the plug more easily drive by the push rod, and this sets up the in-process of having avoided collagen at the injection, collagen flows in the gap between push rod and the plug.

Preferably, the arc-shaped protrusion is bent downward.

The during operation, the protruding downward bending of arc, this sets up when making injection collagen, and when the push rod drove the fixed plate promptly, plug and sieve moved down, the arc arch moved the plug in the inside top of plug, has further increased the atress of arc arch to the plug, and then shared the atress of No. two poles, and this setting makes the bellied top of arc produce the inclined plane, makes behind the collagen crushing process, inside the plug can more be got back to the arc arch more easily.

Preferably, the end part of the second rod close to the first rod is arc-shaped.

When the crushing device works, the end part of the second rod, which is close to the first rod, is arc-shaped, so that when the first rod moves up and down, namely the crushing process starts and ends, compared with the arrangement without the arc-shaped part, the arrangement ensures that the second rod moves along the surface of the first rod more conveniently, reduces friction and avoids the phenomenon of clamping; and this setting makes No. two poles block to the recess more easily, has increased the effect of recess fixed No. two poles.

Preferably, the inside in No. two grooves is provided with a lug and No. two lugs, a lug is located the upper surface in No. two grooves and is close to the notch in No. two grooves, No. two lugs are located the lower surface in No. two grooves and keep away from the notch in No. two grooves.

When the sieve plate cutting device works, when the fixed plate is clamped in the second groove, the columnar rod on the side wall of the fixed plate can move above the second bump, so that the first bump limits the horizontal rotation of the fixed block, and the second bump limits the up-and-down movement of the fixed block, so that the fixed plate can be more stable in the cutting process of the sieve plate, and the situation that the fixed plate is separated from the second groove for fixation due to the fact that the fixed plate is clamped in the second groove by misoperation and rotates is avoided; and after the crushing process, the fixed plate will break away from the spacing in No. two grooves, so the column pole on the fixed plate lateral wall will move out No. two grooves, so will move down from No. two lugs, and then this sets up makes fixed plate and plug slightly downstream, has avoided the inside entering air of cylinder, satisfies the injection requirement.

The invention has the following beneficial effects:

1. according to the collagen fragmentation injection system, the fixed plate and the rubber plug are fixed by clamping the fixed plate in the second groove, the first rod is pulled to enable the second rod to be attracted by the magnet, the fixation between the push rod and the fixed plate and between the push rod and the rubber plug is released, the push rod can drive the sieve plate to move up and down, the collagen fragmentation is completed, after the fragmentation is completed, the first rod is pushed to enable the second rod to be inserted into the fourth groove again, the fixation of the second groove on the fixed plate is released, and the push rod can drive the fixed plate, the rubber plug and the sieve plate to move together, so that the collagen injection is completed.

2. According to the collagen fragmentation injection system, the groove is formed in the position, located at the bottom, of the first rod and is located above the arc transition of the magnet and the first rod on the first rod, when the push rod drives the fixing plate, the rubber plug and the sieve plate to move together, the second rod is just clamped in the groove, and the arrangement can enable the second rod to be more stably abutted to the first rod and not easy to slide; and probably the circumstances that No. two poles and magnet attract each other can take place, makes No. one pole automatic shift up, sets up No. two poles card in the recess, has reduced the emergence of this type of circumstances relatively.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a cross-sectional view of the present invention without a shredding process;

FIG. 2 is a cross-sectional view of the present invention during a shredding process;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a partial enlarged view at B of fig. 2;

FIG. 5 is a side sectional view of the cartridge of the present invention;

fig. 6 is a partial enlarged view at C of fig. 5;

FIG. 7 is a part view of the fixing plate and the rubber plug of the present invention;

in the figure: syringe 1, syringe needle 2, liquid pushing system 3, groove 11, groove 12 No. two, drain pipe 13, valve 14, fixed plate 31, plug 32, sieve 33, push rod 34, scale 35, lug 121 No. two, lug 122 No. two, groove 311 No. four, column pole 312, groove 341 No. three, rod 342, magnet 343, channel 344, rod 345 No. two, recess 346, arc protrusion 347.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 7, the collagen fragmentation injection system according to the present invention comprises a syringe 1, a needle 2 and a liquid pushing system 3; a first groove 11 is vertically formed in the inner surface of the side wall of the needle cylinder 1, a plurality of second grooves 12 are horizontally formed in the inner surface of the side wall of the needle cylinder 1, and the first groove 11 is communicated with the second grooves 12; a liquid outlet pipe 13 is arranged at the center of the bottom of the needle cylinder 1, a valve 14 is arranged in the middle of the liquid outlet pipe 13, and a needle head 2 is nested at the bottom of the liquid outlet pipe 13; the liquid pushing system 3 comprises a fixing plate 31, a rubber plug 32, a sieve plate 33 and a push rod 34; a fixing plate 31 is nested on the inner surface of the side wall of the needle cylinder 1, and a cylindrical rod 312 protrudes from the side wall of the fixing plate 31; the bottom of the fixed plate 31 is rotatably connected with a rubber plug 32, the sieve plate 33 is positioned at the bottom of the rubber plug 32 and is embedded on the inner surface of the side wall of the needle cylinder 1, and the fixed plate 31, the rubber plug 32 and the sieve plate 33 are all tightly contacted with the inner surface of the side wall of the needle cylinder 1 and the first groove 11; the push rod 34 penetrates through the fixed plate 31 and the rubber plug 32 and is rotatably connected with the central part of the top of the sieve plate 33, and scales 35 are arranged on the part of the side wall of the push rod 34, which is close to the fixed plate 31, and the upper surface of the fixed plate 31; a third groove 341 is formed in the position, close to the top, of the push rod 34, a first rod 342 is hollow inside the push rod 34, the third groove 341 is exposed at the top of the first rod 342, a magnet 343 is arranged at the position, close to the bottom, of the first rod 342, and the top of the magnet 343 is in arc transition with the first rod 342; a channel 344 is horizontally arranged at the position of the push rod 34 close to the bottom, a second rod 345 is tightly nested in the channel 344, and a fourth groove 311 is arranged at the position of the fixed plate 31 tightly attached to the push rod 34.

When the device works, the fragmentation process of collagen fibrils in the prior art is complicated, the use is inconvenient, and if a patient who urgently needs to inject collagen is pointed out, the speed is low, and the efficiency is low; if the collagen fibers are sufficiently crushed, the required procedures are complicated and the cost is high; therefore, the invention provides a simple device for cracking collagen; the second rod 345 is nested in the channel 344 and can enter the fourth groove 311, and the fixing plate 31 is rotatably connected with the rubber plug 32, that is, the fixing plate 31 and the rubber plug 32 can rotate relative to each other and cannot move relative to each other; pulling the push rod 34, enabling the fixing plate 31, the rubber plug 32 and the sieve plate 33 to be attached to the inner wall of the syringe 1 and move upwards in the first groove 11, taking down the needle 2, sucking collagen to be injected into the syringe 1, stopping pulling the push rod 34 when the required amount is reached, horizontally rotating the push rod 34, enabling the push rod 34 to be connected with the sieve plate 33 in a rotating mode, and enabling the push rod 34 to rotate relative to the sieve plate 33; the fixing plate 31 rotates due to the rotary connection between the fixing plate 31 and the rubber plug 32, the columnar rod 312 protrudes from the side wall of the fixing plate 31, the fixing plate 31 rotates to clamp the columnar rod 312 into the second groove 12, and the second groove 12 is horizontally arranged, so that the second groove 12 limits the vertical movement of the fixing plate 31 and the rubber plug 32; after the push rod 34 is rotated, the needle 2 is removed from the collagen liquid, and the valve 14 on the liquid outlet pipe 13 is closed; if the amount of the collagen to be sucked does not correspond to the position of the second groove 12, the columnar rod 312 on the side wall of the fixing plate 31 can be firstly clamped into the second groove 12 to suck the collagen for multiple times; after the valve 14 is closed, the first rod 342 is moved upwards by pulling the first rod 342 to expose the part of the third groove 341, because the first rod 342 is not moved upwards, the second rod 345 is in contact with the side wall of the first rod 342, the radius of the first rod 342 at the contact point is large, the first rod 342 is moved upwards, the moving distance is just long enough to enable the magnet 343 on the first rod 342 to be opposite to the second rod 345, the material of the second rod 345 is a material capable of being adsorbed by the magnet 343, so the second rod 345 is attracted by the magnet 343, because the radius of the first rod 342 at the magnet 343 is small, the second rod 345 moves towards the direction of the magnet 343 and is in contact with the magnet 343, at this time, the second rod 345 is drawn out of the fourth groove 311, but the second rod 345 is still in the channel 344 and the end of the second rod 345 is flush with the port of the channel 344 away from the first rod 342; therefore, the fixed plate 31, the rubber plug 32 and the push rod 34 are not fixed, because the fixed plate 31 and the rubber plug 32 are fixed on the side wall of the needle cylinder 1, the push rod 34 can move relative to the fixed plate 31 and the rubber plug 32, and the push rod 34 is rotatably connected with the central position of the sieve plate 33, so that the push rod 34 is pushed and pulled, the sieve plate 33 can be driven to move up and down, the fixed plate 31 and the rubber plug 32 do not move, because the sieve plate 33 is provided with sieve cutting holes except for the connecting part with the push rod 34, collagen can be crushed after passing through the sieve cutting holes; therefore, the push-pull rod 34 is pushed and pulled to move the sieve plate 33 up and down, and the operation is repeated for a plurality of times, so that the collagen penetrates through the sieve holes as much as possible to cut the collagen; after the chopping process is finished, the push rod 34 is pulled upwards to enable the sieve plate 33 to be tightly attached to the rubber plug 32, the first rod 342 is pushed to expose the part of the third groove 341, the first rod 342 moves downwards, the second rod 345 in the channel 344 moves in an arc transition mode along the top of the magnet 343 and the first rod 342, the second rod 345 is enabled to be in contact with the side wall with the large radius of the first rod 342, the first rod 342 pushes the second rod 345 to move to the fourth groove 311 in the process, the push rod 34 is enabled to be continuously fixed with the fixed plate 31 and the rubber plug 32, the push rod 34 is rotated to enable the columnar rod 312 on the side wall of the fixed plate 31 to move out of the second groove 12, the fixed plate 31 and the rubber plug 32 can move up and down, and therefore the push rod 34 is pushed, the fixed plate 31, the rubber plug 32 and the sieve plate 33 can move up and down simultaneously, the valve 14 is opened, the needle 2 is installed, the push rod 34 is pushed, and the crushed collagen is injected to a human body; and the side wall of the push rod 34 close to the fixed plate 31 and the upper surface of the fixed plate 31 are provided with scales 35, when the scales 35 on the side wall of the push rod 34 are completely matched with the scales 35 on the fixed plate 31, the second rod 345 can be smoothly clamped into the fourth groove 311, so that whether the scales 35 are matched or not can be observed, and the situation that the second rod 345 cannot be inserted into the fourth groove 311 due to rotation of the push rod 34 in the up-and-down movement process is avoided. The middle push rod 34 is tightly contacted with the rubber plug 32, the rubber plug 32 is contacted with the side wall of the needle cylinder 1, the inner wall of the first groove 11, the second rod 345 is contacted with the inner wall of the channel 344, and the contact part of the channel 344 and the second rod 345 is provided with the material which is the same as the material of the rubber plug 32; to ensure that the collagen does not leak out inside the cylinder 1.

As an embodiment of the present invention, a groove 346 is disposed at a bottom portion of the first rod 342, and the groove 346 is located above an arc transition between the magnet 343 and the first rod 342 on the first rod 342.

When the device works, the groove 346 is formed in the position, located at the bottom, of the first rod 342, the groove 346 is located above the arc transition of the magnet 343 and the first rod 342 on the first rod 342, and when the push rod 34 drives the fixing plate 31, the rubber plug 32 and the sieve plate 33 to move together, the second rod 345 is just clamped in the groove 346, so that the second rod 345 can be stably abutted to the first rod 342 and cannot slide easily; and the second rod 345 and the magnet 343 may attract each other, so that the first rod 342 automatically moves upwards, and the second rod 345 is arranged in the groove 346, so that the occurrence of the situation is relatively reduced.

In an embodiment of the present invention, the push rod 34 is provided with an arc-shaped protrusion 347 near the bottom, and the arc-shaped protrusion 347 is distributed annularly around the push rod 34.

During operation, the position that push rod 34 is close to the bottom is provided with arc protrusion 347, arc protrusion 347 is the annular around push rod 34 and distributes, when push rod 34 drove fixed plate 31, plug 32 and sieve 33 move jointly, arc protrusion 347 card is inside plug 32, this setting makes plug 32 extrude with arc protrusion 347, make resistance grow between plug 32 and the arc protrusion 347, share the atress of No. two pole 345, make plug 32 change and be driven by push rod 34, and this setting has avoided collagen at the in-process of injection, collagen flows in the gap between push rod 34 and the plug 32.

In an embodiment of the present invention, the arc-shaped protrusion 347 is bent downward.

During operation, the arc-shaped protrusion 347 bends downwards, and when the arrangement makes collagen be injected, namely the push rod 34 drives the fixing plate 31, the rubber plug 32 and the sieve plate 33 to move downwards, the arc-shaped protrusion 347 pushes the rubber plug 32 in the rubber plug 32, so that the stress of the arc-shaped protrusion 347 on the rubber plug 32 is further increased, and the stress of the second rod 345 is shared, and the arrangement makes the upper side of the arc-shaped protrusion 347 generate an inclined plane, so that after the collagen crushing process is finished, the arc-shaped protrusion 347 can more easily return to the inside of the rubber plug 32.

In an embodiment of the present invention, the end of the second rod 345 near the first rod 342 is arc-shaped.

During operation, because the end part of the second rod 345 close to the first rod 342 is arc-shaped, when the first rod 342 moves up and down, namely the crushing process starts and ends, compared with the arrangement without arc-shaped, the arrangement enables the second rod 345 to move along the surface of the first rod 342 more conveniently, reduces friction and avoids the phenomenon of blocking; and this arrangement makes it easier for the second rod 345 to be caught in the groove 346, increasing the effect of the groove 346 for fixing the second rod 345.

As a specific embodiment of the present invention, a first bump 121 and a second bump 122 are disposed inside the second groove 12, the first bump 121 is located on the upper surface of the second groove 12 and is close to the notch of the second groove 12, and the second bump 122 is located on the lower surface of the second groove 12 and is far away from the notch of the second groove 12.

During operation, when the fixing plate 31 is clamped in the second groove 12, the columnar rod 312 on the side wall of the fixing plate 31 can move above the second bump 122, so that the first bump 121 limits the horizontal rotation of the fixing block, and the second bump 122 limits the vertical movement of the fixing block, so that the fixing plate 31 can be more stable in the cutting process of the sieve plate 33, and the situation that the fixing plate 31 is rotated to separate from the second groove 12 to be fixed when the fixing plate 31 is clamped in the second groove 12 due to misoperation is avoided; and after the crushing process, the fixed plate 31 is to get rid of the spacing of the second groove 12, so the column rod 312 on the side wall of the fixed plate 31 is to move out of the second groove 12, so the column rod is to move down from the second bump 122, and the fixed plate 31 and the rubber plug 32 move down for a distance by the arrangement, thereby avoiding air entering the syringe 1 and meeting the injection requirement.

The specific working process is as follows:

in the prior art, the fragmentation process of collagen fibrils is complicated and inconvenient to use, and if a patient who urgently needs to inject collagen is required, the speed is low and the efficiency is low; if the collagen fibers are sufficiently crushed, the required procedures are complicated and the cost is high; therefore, the invention provides a simple device for cracking collagen; the second rod 345 is nested in the channel 344 and can enter the fourth groove 311, and the fixing plate 31 is rotatably connected with the rubber plug 32, that is, the fixing plate 31 and the rubber plug 32 can rotate relative to each other and cannot move relative to each other; pulling the push rod 34, enabling the fixing plate 31, the rubber plug 32 and the sieve plate 33 to be attached to the inner wall of the syringe 1 and move upwards in the first groove 11, taking down the needle 2, sucking collagen to be injected into the syringe 1, stopping pulling the push rod 34 when the required amount is reached, horizontally rotating the push rod 34, enabling the push rod 34 to be connected with the sieve plate 33 in a rotating mode, and enabling the push rod 34 to rotate relative to the sieve plate 33; the fixing plate 31 rotates due to the rotary connection between the fixing plate 31 and the rubber plug 32, the columnar rod 312 protrudes from the side wall of the fixing plate 31, the fixing plate 31 rotates to clamp the columnar rod 312 into the second groove 12, and the second groove 12 is horizontally arranged, so that the second groove 12 limits the vertical movement of the fixing plate 31 and the rubber plug 32; after the push rod 34 is rotated, the needle 2 is removed from the collagen liquid, and the valve 14 on the liquid outlet pipe 13 is closed; if the amount of the collagen to be sucked does not correspond to the position of the second groove 12, the columnar rod 312 on the side wall of the fixing plate 31 can be firstly clamped into the second groove 12 to suck the collagen for multiple times; after the valve 14 is closed, the first rod 342 is moved upwards by pulling the first rod 342 to expose the third groove 341, because the first rod 342 is not moved upwards, the second rod 345 contacts with the side wall of the first rod 342 and the radius of the first rod 342 at the contact point is large, the first rod 342 moves upwards, the moving distance is just long enough to enable the magnet 343 on the first rod 342 to be opposite to the second rod 345, the material of the second rod 345 is a material capable of being adsorbed by the magnet 343, so the second rod 345 is attracted by the magnet 343, because the radius of the first rod 342 at the magnet 343 is small, the second rod 345 moves towards the direction of the magnet 343 and contacts with the magnet 343, and at the moment, the second rod 345 is pulled out of the fourth groove 311 and still in the channel 344; therefore, the fixed plate 31, the rubber plug 32 and the push rod 34 are not fixed, and the fixed plate 31 and the rubber plug 32 are fixed on the side wall of the needle cylinder 1, so that the push rod 34 can move relative to the fixed plate 31 and the rubber plug 32, and the push rod 34 is rotatably connected with the central position of the sieve plate 33, so that the push rod 34 is pushed and pulled, the sieve plate 33 can be driven to move up and down, the fixed plate 31 and the rubber plug 32 do not move, and the sieve plate 33 is provided with sieve cutting holes except for the connecting part with the push rod 34, and the sieve cutting holes can crush collagen; therefore, the push-pull rod 34 is pushed and pulled to move the sieve plate 33 up and down, and the operation is repeated for a plurality of times, so that the collagen penetrates through the sieve holes as much as possible to cut the collagen; after the chopping process is finished, the push rod 34 is pulled upwards to enable the sieve plate 33 to be tightly attached to the rubber plug 32, the first rod 342 is pushed to expose the part of the third groove 341, the first rod 342 moves downwards, the second rod 345 in the channel 344 moves in an arc transition mode along the top of the magnet 343 and the first rod 342, the second rod 345 is enabled to be in contact with the side wall with the large radius of the first rod 342, the first rod 342 pushes the second rod 345 to move to the fourth groove 311 in the process, the push rod 34 is enabled to be continuously fixed with the fixed plate 31 and the rubber plug 32, the push rod 34 is rotated to enable the columnar rod 312 on the side wall of the fixed plate 31 to move out of the second groove 12, the fixed plate 31 and the rubber plug 32 can move up and down, and therefore the push rod 34 is pushed, the fixed plate 31, the rubber plug 32 and the sieve plate 33 can move up and down simultaneously, the valve 14 is opened, the needle 2 is installed, the push rod 34 is pushed, and the crushed collagen is injected to a human body; the side wall of the push rod 34 close to the fixed plate 31 and the upper surface of the fixed plate 31 are provided with scales 35, when the scales 35 on the side wall of the push rod 34 are completely matched with the scales 35 on the fixed plate 31, the second rod 345 can be smoothly clamped into the fourth groove 311, so that whether the scales 35 are matched or not can be observed, and the situation that the second rod 345 cannot be inserted into the fourth groove 311 due to rotation of the push rod 34 in the up-and-down movement process is avoided; the middle push rod 34 is tightly contacted with the rubber plug 32, the rubber plug 32 is contacted with the side wall of the needle cylinder 1, the inner wall of the first groove 11, the second rod 345 is contacted with the inner wall of the channel 344, and the contact part of the channel 344 and the second rod 345 is provided with the material which is the same as the material of the rubber plug 32; to ensure that the collagen does not leak in the syringe 1; in addition, a groove 346 is formed in the bottom of the first rod 342, the groove 346 is located above the arc transition of the magnet 343 and the first rod 342 on the first rod 342, and when the push rod 34 drives the fixing plate 31, the rubber plug 32 and the sieve plate 33 to move together, the second rod 345 is just clamped in the groove 346, so that the second rod 345 can be supported on the first rod 342 more stably and is not easy to slide; and the second rod 345 and the magnet 343 may attract each other to enable the first rod 342 to move upwards automatically, and the second rod 345 is arranged to be clamped in the groove 346, so that the occurrence of the situation is relatively reduced; in addition, the position that the push rod 34 is close to the bottom is provided with the arc protrusion 347, the arc protrusion 347 is annularly distributed around the push rod 34, when the push rod 34 drives the fixed plate 31, the rubber plug 32 and the sieve plate 33 move together, the arc protrusion 347 is clamped inside the rubber plug 32, the rubber plug 32 is extruded with the arc protrusion 347 due to the arrangement, the resistance between the rubber plug 32 and the arc protrusion 347 is increased, the stress of the second rod 345 is shared, the rubber plug 32 is more easily driven by the push rod 34, and the arrangement avoids collagen from flowing into the gap between the push rod 34 and the rubber plug 32 in the injection process.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A collagen fragmentation injection system, comprising: comprises a syringe (1), a needle head (2) and a liquid pushing system (3); a first groove (11) is vertically formed in the inner surface of the side wall of the needle cylinder (1), a plurality of second grooves (12) are horizontally formed in the inner surface of the side wall of the needle cylinder (1), and the first groove (11) is communicated with the second grooves (12); a liquid outlet pipe (13) is arranged at the center of the bottom of the needle cylinder (1), a valve (14) is arranged in the middle of the liquid outlet pipe (13), and a needle head (2) is nested at the bottom of the liquid outlet pipe (13); the liquid pushing system (3) comprises a fixing plate (31), a rubber plug (32), a sieve plate (33) and a push rod (34); a fixing plate (31) is nested on the inner surface of the side wall of the needle cylinder (1), and a cylindrical rod (312) protrudes from the side wall of the fixing plate (31); the bottom of the fixed plate (31) is rotatably connected with a rubber plug (32), the sieve plate (33) is positioned at the bottom of the rubber plug (32) and is embedded in the inner surface of the side wall of the needle cylinder (1), and the fixed plate (31), the rubber plug (32) and the sieve plate (33) are in close contact with the inner surface of the side wall of the needle cylinder (1) and the first groove (11); the push rod (34) penetrates through the fixed plate (31) and the rubber plug (32) and is rotatably connected with the central part of the top of the sieve plate (33), and scales (35) are arranged on the part, close to the fixed plate (31), of the side wall of the push rod (34) and on the upper surface of the fixed plate (31); a third groove (341) is formed in the position, close to the top, of the push rod (34), a first rod (342) is hollow inside the push rod (34), the third groove (341) is exposed out of the top of the first rod (342), a magnet (343) is arranged at the position, close to the bottom, of the first rod (342), and the top of the magnet (343) is in arc transition with the first rod (342); a channel (344) is horizontally arranged at the position, close to the bottom, of the push rod (34), a second rod (345) is tightly nested in the channel (344), and a fourth groove (311) is arranged at the position, close to the push rod (34), of the fixing plate (31).

2. The collagen fragmentation injection system according to claim 1, wherein: a groove (346) is formed in the position, located at the bottom, of the first rod (342), and the groove (346) is located above the arc transition between the magnet (343) and the first rod (342) on the first rod (342).

3. The collagen fragmentation injection system according to claim 2, wherein: the push rod (34) is provided with arc-shaped protrusions (347) at the position close to the bottom, and the arc-shaped protrusions (347) are distributed annularly around the push rod (34).

4. A collagen fragmentation injection system according to claim 3, wherein: the arc-shaped protrusion (347) is bent downward.

5. The collagen fragmentation injection system according to claim 4, wherein: the end part of the second rod (345) close to the first rod (342) is arc-shaped.

6. The collagen fragmentation injection system according to claim 5, wherein: no. two the inside of groove (12) is provided with a lug (121) and No. two lug (122), a lug (121) is located the upper surface of No. two groove (12) and is close to the notch of No. two groove (12), No. two lug (122) are located the lower surface of No. two groove (12) and keep away from the notch of No. two groove (12).