CN219804040U - Disposable special syringe for sucking fat - Google Patents

Abstract

The utility model discloses a disposable special syringe for liposuction, which comprises an injection cylinder, wherein a needle seat is arranged at the bottom end of the injection cylinder, a connecting block is arranged at the bottom end of the needle seat, and an injection needle main body is connected with the bottom end of the connecting block in a threaded manner. According to the utility model, the syringe piston pull rod is pulled to drive the syringe piston to synchronously move, so that negative pressure liposuction can be formed, the coupling saw teeth and the limiting teeth in the fixed cylinder are elastically and slidably displaced in the process of lifting and moving up the syringe piston pull rod, and after negative pressure is manufactured, the pulling of the syringe piston pull rod is stopped, so that the coupling saw teeth on two sides of the syringe piston pull rod are coupled with the limiting teeth in the fixed cylinder, and the fixation can be completed, so that the position of the syringe piston pull rod is limited, a medical staff is not required to pull the syringe piston rod all the time, the medical staff can release hands and perform negative pressure liposuction, and the operation is convenient, so that the fatigue of the medical staff is relieved.

Description

Disposable special syringe for sucking fat

Technical Field

The utility model relates to the technical field of syringes, in particular to a disposable special syringe for liposuction.

Background

Facial autologous fat filling is one of the most common cosmetic operations, and the amount of fat required for facial filling is not large, so that a common 10mL or 20mL syringe is commonly used in clinic for negative pressure fat suction by connecting a fat suction needle, and the syringe is required in the process.

The inventor of the utility model performs clinical first-line work of medical plastic repair for a long time, and obtains some research results, and published paper on Chinese journal of orthopaedics in China in 2020, and published paper on application of portable visual drag hook in post-aural skin dilation in 2021, wherein the paper on post-tibial artery medial malleolus through branch pedicel propeller flap repair heel area wound surface is published in Chinese journal of orthopaedics.

The inventor finds that at present, commercial reusable syringe metal piston systems are available on the market for manufacturing syringe negative pressure, however, such devices are subject to wear and deformation after repeated sterilization and do not adhere to the syringe needle wall, resulting in failure to produce air tightness. For example, in chinese patent with publication number CN 216417977U, there is provided a fat-reducing skin tightening injector, which comprises a syringe, a needle holder, a straight rod, a piston and a pressing block, wherein the needle holder is located at the bottom of the syringe, the bottom of the straight rod is movably inserted into the syringe, the piston is mounted at the bottom of the straight rod, the pressing block is mounted at the top of the straight rod, a fixing ring is sleeved on the surface of the straight rod, a tension spring is sleeved on the surface of the straight rod, one side of the tension spring is fixedly connected with the surface of the fixing ring, and a sealing ring is fixedly connected with the other side of the tension spring. The technology can realize that the injector can automatically absorb the liquid medicine by only one hand of a user when in use, can generate stronger damping sense when in injection, can prevent the liquid medicine from being excessively injected fast due to excessive force of the user when in injection, is convenient for controlling the injection speed, can simultaneously ensure that the inner cavity sealing effect of the needle cylinder is better, and can prevent sundries from entering the needle cylinder when in use. However, when the above-mentioned prior art is used, there is still a certain disadvantage, and when it is operated, it is required to continuously use force to pull the straight rod to make the piston keep the negative pressure in the syringe to extract the liquid medicine, and the operation is inconvenient, and easily causes operator's hand fatigue, influences the operation progress, therefore, needs to carry out further improvement.

In view of the shortcomings of the prior art, the inventor designs a disposable special syringe for sucking fat.

Disclosure of Invention

The utility model aims to provide a disposable special syringe for sucking fat, which solves the problems of inconvenient use and poor flexibility of the conventional disposable special syringe for sucking fat in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a special syringe of disposable fat absorption, includes the syringe, the needle holder is installed to the bottom of syringe, and the connecting block is installed to the bottom of needle holder, the bottom threaded connection of connecting block has the syringe main part, the outside of syringe has cup jointed outer guard ring, and the both sides of outer guard ring all are provided with positioning mechanism, the outside of outer guard ring has cup jointed syringe needle protection section of thick bamboo, and the inside both sides of syringe needle protection section of thick bamboo all are provided with the direction spout, the injection piston is installed to the inside bottom of syringe, and the syringe piston pull rod is installed on the top of injection piston, the one end of syringe piston pull rod extends to the outside of syringe and installs the pull handle, the outside of syringe piston pull rod is provided with pull rod coupling mechanism.

When the disposable liposuction special injector of the technical scheme is used, the injection needle protection cylinder shields and protects the injection needle main body during use, prevents medical staff from being stabbed during use, and limits the position of the injection needle protection cylinder through the positioning mechanism so as to ensure the protection stability.

Preferably, the positioning mechanism comprises a guide bar, the guide bar is arranged on the outer side of the outer guard ring, one side of the guide bar is provided with a containing groove, a compression spring is arranged in the containing groove, a limit column is arranged at one end of the compression spring, a limit hole is formed in the outer side of the limit column, and the limit hole is formed in the outer side of the injection needle protection cylinder.

Preferably, the cross section of the guide bar is rectangular, the outer diameter of the guide bar is matched with the inner diameter of the guide chute, and the injection needle protection cylinder and the outer guard ring form a sliding mechanism through the guide bar and the guide chute.

Preferably, the outer diameter of the limiting column is slightly smaller than the inner diameter of the limiting hole, two groups of limiting holes are formed in the outer side of the injection needle protection cylinder, and two groups of limiting holes are formed in each group.

Preferably, the pull rod coupling mechanism comprises a fixed cylinder, the fixed cylinder is arranged at the top end of the inside of the injection cylinder, both sides of the fixed cylinder are uniformly provided with limiting teeth, both sides of the injector piston pull rod at one side of the limiting teeth are provided with connecting rods, and one side of each connecting rod is uniformly provided with coupling saw teeth.

Preferably, the cross sections of the limiting teeth and the coupling saw teeth are triangular, and the limiting teeth and the coupling saw teeth are made of PVC.

Compared with the prior art, the utility model has the beneficial effects that: the disposable special syringe for sucking fat is not only convenient for limiting the piston rod, convenient and flexible to use and good in labor-saving effect, but also good in protection effect and can prevent puncture injury;

(1) The syringe piston pull rod is pulled to drive the syringe piston to synchronously move, so that negative pressure liposuction can be formed, the coupling saw teeth and the limiting teeth in the fixed cylinder are elastically and slidably displaced in the process of lifting and moving up the syringe piston pull rod, after negative pressure is manufactured, the pulling of the syringe piston pull rod is stopped, so that the coupling saw teeth on two sides of the syringe piston pull rod are coupled with the limiting teeth in the fixed cylinder, fixation can be completed, the position of the syringe piston pull rod is limited, a medical staff is not required to pull the syringe piston rod all the time, so that the medical staff can loosen hands and perform negative pressure liposuction, the operation is convenient, the fatigue relieving effect of the medical staff is achieved, after liposuction is completed, the connecting rod is manually pressed, the coupling saw teeth and the limiting teeth are separated from each other, so that the fixed cylinder is taken out, the extracted fat is led out, and the next use can be performed, and the syringe piston pull rod is more economic

(2) Through the guide bar and the mutual cooperation of direction spout for syringe needle protective casing can slide from top to bottom, can shelter from the protection to syringe needle main part, plays the guard action, makes when using, prevents that medical personnel from being stabbed, passes spacing hole through spacing post afterwards, so that inject syringe needle protective casing's position and prescribe a limit to, the protection is effectual, compression spring has the compressibility, consequently, spacing post can break away from with spacing hole, and syringe needle protective casing can be dismantled from the syringe tube outside promptly, so that later stage reuse.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic view of the protection structure of the protection cover of the present utility model;

FIG. 3 is a schematic view of a front cross-sectional structure of a syringe according to the present utility model;

FIG. 4 is a schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 5 is a perspective view of an outer retainer according to the present utility model;

fig. 6 is a schematic perspective view of a fixing cylinder according to the present utility model.

Reference numerals in the drawings illustrate: 1. a syringe; 2. needle seat; 3. a connecting block; 4. an injection needle body; 5. an outer retainer; 6. a syringe piston pull rod; 7. an injection needle protection cylinder; 8. a guide chute; 9. a positioning mechanism; 901. a guide bar; 902. a receiving groove; 903. a compression spring; 904. a limit column; 905. a limiting hole; 10. an injection piston; 11. a pull handle; 12. a pull rod coupling mechanism; 1201. a fixed cylinder; 1202. limit teeth; 1203. coupling the saw teeth; 1204. and a connecting rod.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1-6, an embodiment of the present utility model is provided: the disposable special syringe for sucking fat comprises a syringe 1, wherein a needle seat 2 is arranged at the bottom end of the syringe 1, a connecting block 3 is arranged at the bottom end of the needle seat 2, the bottom end of the connecting block 3 is in threaded connection with a syringe main body 4, an outer retainer 5 is sleeved on the outer side of the syringe 1, and positioning mechanisms 9 are arranged on two sides of the outer retainer 5;

the positioning mechanism 9 comprises a guide bar 901, the guide bar 901 is arranged on the outer side of the outer guard ring 5, one side of the guide bar 901 is provided with a containing groove 902, a compression spring 903 is arranged in the containing groove 902, one end of the compression spring 903 is provided with a limit column 904, the outer side of the limit column 904 is provided with a limit hole 905, and the limit hole 905 is arranged on the outer side of the injection needle protection barrel 7;

the section of the guide strip 901 is rectangular, the outer diameter of the guide strip 901 is matched with the inner diameter of the guide chute 8, and the injection needle protection cylinder 7 and the outer guard ring 5 form a sliding mechanism through the guide strip 901 and the guide chute 8;

the outer diameter of the limiting column 904 is slightly smaller than the inner diameter of the limiting hole 905, and the limiting hole 905 is provided with two groups at the outer side of the injection needle protection barrel 7, and each group is provided with two groups;

specifically, as shown in fig. 1, 2 and 4, when in use, the injection needle protection cylinder 7 can shield and protect the injection needle main body 4 from being stabbed during use, and the position of the injection needle protection cylinder 7 is limited by mutually matching the limiting column 904 and the limiting hole 905 so as to ensure the firmness of protection;

the outer side of the outer retainer 5 is sleeved with an injection needle protection cylinder 7, both sides of the interior of the injection needle protection cylinder 7 are provided with guide sliding grooves 8, the bottom end of the interior of the injection cylinder 1 is provided with an injection piston 10, the top end of the injection piston 10 is provided with an injection piston pull rod 6, one end of the injection piston pull rod 6 extends to the exterior of the injection cylinder 1 and is provided with a pull handle 11, and the outer side of the injection piston pull rod 6 is provided with a pull rod coupling mechanism 12;

the pull rod coupling mechanism 12 comprises a fixed cylinder 1201, wherein the fixed cylinder 1201 is arranged at the top end in the injection cylinder 1, both sides of the fixed cylinder 1201 are uniformly provided with limiting teeth 1202, both sides of the injector piston pull rod 6 at one side of the limiting teeth 1202 are provided with connecting rods 1204, and one side of each connecting rod 1204 is uniformly provided with a coupling saw tooth 1203;

the cross sections of the limiting teeth 1202 and the coupling saw teeth 1203 are triangular, and the limiting teeth 1202 and the coupling saw teeth 1203 are made of PVC;

specifically, as shown in fig. 3, when the injector piston rod 6 is in use, the limiting teeth 1202 and the coupling saw teeth 1203 are mutually staggered in a sliding manner in the drawing process of the injector piston rod 6, and when the injector piston rod 6 stops being drawn, the limiting teeth 1202 and the coupling saw teeth 1203 are mutually coupled, namely, the injector piston rod 6 cannot slide down, so that medical staff does not need to keep a drawing posture all the time, and work fatigue is relieved.

Working principle: when the device is used, firstly, the fixed cylinder 1201 is inserted into the injection cylinder 1, the pull handle 11 pulls the injection piston pull rod 6 to drive the injection piston 10 to move upwards to cause negative pressure, normal fat suction can be carried out, the coupling saw teeth 1203 on the injection piston pull rod 6 and the limit teeth 1202 in the fixed cylinder 1201 elastically slide and misplace, after the negative pressure is manufactured, the pulling of the injection piston pull rod 6 is stopped, so that the coupling saw teeth 1203 on two sides of the injection piston pull rod 6 are coupled with the limit teeth 1202 in the fixed cylinder 1201, the fixation can be completed, then hands can be loosened and the negative pressure fat suction can be carried out, after the fat suction is completed, the injection needle main body 4 is taken down, the negative pressure in the injection cylinder 1 is eliminated, then the connecting rod 1204 is pressed by a finger, the coupling saw teeth 1203 and the limit teeth 1202 are separated, and then the injection piston pull rod 6 can be taken out, fat in the injection cylinder 1 is poured out, and then the injection piston pull rod 6 and the fixed cylinder 1201 are sequentially filled back, and the next fat suction can be carried out;

secondly, the outside at syringe 1 has set up outer retainer 5, the outside at outer retainer 5 has correspondingly installed guide bar 901, guide bar 901 and direction spout 8 are matees each other, then make syringe needle protection cartridge 7 can slide from top to bottom in the outside of outer retainer 5, make when this special syringe of liposuction is not used, downward pulling syringe needle protection cartridge 7, the inner wall mutual contact of guide bar 901 and direction spout 8 promptly, make compression spring 903 atress compressed, then when syringe needle protection cartridge 7 downward pulling covers syringe needle main part 4, spacing post 904 wears out from spacing hole 905, namely inject syringe needle protection cartridge 7's position, then shelter from syringe needle main part 4 through syringe needle protection cartridge 7, make syringe needle main part 4 be in the state of protection, effectively avoid stabbing medical personnel, then when need use this special syringe of liposuction, press spacing post 904, make it break away from in spacing hole 905, can upwards pull syringe protection cartridge 7, can make spacing post 904 pass through spacing hole 905 from syringe needle protection cartridge 7, can make syringe needle protection cartridge 7 normally, this special syringe needle protection cartridge 7 can not be used to the normal, can make syringe needle protection cartridge 7 be used to the syringe needle protection up, therefore, can normally be used to protect syringe needle protection cartridge 7.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (6)

1. The disposable special syringe for sucking fat comprises a syringe (1), and is characterized in that: needle mount (2) are installed to the bottom of syringe (1), and connecting block (3) are installed to the bottom of needle mount (2), the bottom threaded connection of connecting block (3) has syringe needle main part (4), outer retainer (5) have been cup jointed in the outside of syringe (1), and the both sides of outer retainer (5) all are provided with positioning mechanism (9), syringe needle protection section of thick bamboo (7) have been cup jointed in the outside of outer retainer (5), and syringe needle protection section of thick bamboo (7) inside both sides all are provided with direction spout (8), injection piston (10) are installed to the inside bottom of syringe (1), and syringe piston pull rod (6) are installed on the top of injection piston (10), the one end of syringe piston pull rod (6) extends to the outside of syringe (1) and installs pull handle (11), the outside of syringe piston pull rod (6) is provided with pull rod coupling mechanism (12).

2. The disposable liposuction-dedicated syringe according to claim 1, wherein: positioning mechanism (9) are including gib block (901), and gib block (901) set up in the outside of outer protective shroud (5), one side of gib block (901) is provided with holding tank (902), and the internally mounted of holding tank (902) has compression spring (903), spacing post (904) are installed to the one end of compression spring (903), the outside of spacing post (904) is provided with spacing hole (905), and spacing hole (905) set up in the outside of syringe needle protective cylinder (7).

3. The disposable liposuction-dedicated syringe according to claim 2, wherein: the section of the guide strip (901) is rectangular, the outer diameter of the guide strip (901) is matched with the inner diameter of the guide chute (8), and the injection needle protection cylinder (7) and the outer guard ring (5) form a sliding mechanism through the guide strip (901) and the guide chute (8).

4. The disposable liposuction-dedicated syringe according to claim 2, wherein: the outer diameter of the limiting column (904) is slightly smaller than the inner diameter of the limiting hole (905), two groups of limiting holes (905) are arranged on the outer side of the injection needle protection cylinder (7), and two groups of limiting holes are arranged in each group.

5. The disposable liposuction-dedicated syringe according to claim 1, wherein: the pull rod coupling mechanism (12) comprises a fixed cylinder (1201), the fixed cylinder (1201) is arranged at the top end inside the injection cylinder (1), limiting teeth (1202) are uniformly arranged on two sides of the fixed cylinder (1201), connecting rods (1204) are uniformly arranged on two sides of a syringe piston pull rod (6) on one side of each limiting tooth (1202), and coupling saw teeth (1203) are uniformly arranged on one side of each connecting rod (1204).

6. The disposable liposuction-dedicated syringe according to claim 5, wherein: the cross sections of the limiting teeth (1202) and the coupling saw teeth (1203) are triangular, and the limiting teeth (1202) and the coupling saw teeth (1203) are made of PVC.