阅读说明：本技术 一种活塞组件及分离装置 (Piston assembly and separating device ) 是由 谢文明 于 2021-07-29 设计创作，主要内容包括：本发明公开一种活塞组件及分离装置。活塞组件包括活塞本体、配重块、封堵件和转接环；活塞本体设置有过液腔,过液腔的底部设置有过液孔；配重块活动配合在过液腔内；封堵件设置在配重块上,并随着配重块的自重下落以封堵过液孔；转接环设置在过液腔的侧壁,转接环的内壁设置有转接部,转接部用于装配推杆。分离装置包括一种活塞组件,与活塞组件适配的推杆和容器,以及堵头；推杆的端部配合在转接部处,其与过液腔底部的间距可调；容器设置有供活塞组件配合的离心腔,离心腔的底部设置有出液口；堵头可拆卸地配合在出液口。本发明能够快速获取高质量的有效脂肪组织,减少杂质的混入,并且操作方便、快捷。(The invention discloses a piston assembly and a separating device. The piston assembly comprises a piston body, a balancing weight, a plugging piece and a transfer ring; the piston body is provided with a liquid passing cavity, and the bottom of the liquid passing cavity is provided with a liquid passing hole; the balancing weight is movably matched in the liquid passing cavity; the blocking piece is arranged on the balancing weight and falls along with the self weight of the balancing weight to block the liquid passing hole; the adapter ring sets up the lateral wall at crossing the liquid chamber, and the inner wall of adapter ring is provided with switching portion, and switching portion is used for assembling the push rod. The separating device comprises a piston assembly, a push rod and a container which are matched with the piston assembly, and a plug; the end part of the push rod is matched with the switching part, and the distance between the end part of the push rod and the bottom of the liquid passing cavity is adjustable; the container is provided with a centrifugal cavity matched with the piston assembly, and the bottom of the centrifugal cavity is provided with a liquid outlet; the end cap is detachably matched with the liquid outlet. The invention can rapidly obtain high-quality effective adipose tissues, reduces the mixing of impurities, and has convenient and rapid operation.)

1. A piston assembly, characterized by:

the piston comprises a piston body, a balancing weight, a plugging piece and a transfer ring;

the piston body is provided with a liquid passing cavity, and the bottom of the liquid passing cavity is provided with a liquid passing hole;

the balancing weight is movably matched in the liquid passing cavity;

the blocking piece is arranged on the balancing weight and falls along with the self weight of the balancing weight to block the liquid passing hole;

the adapter ring is arranged on the side wall of the liquid passing cavity, an adapter part is arranged on the inner wall of the adapter ring, and the adapter part is used for assembling a push rod.

2. A piston assembly according to claim 1, wherein:

the bottom of the liquid passing cavity is a conical surface, the liquid passing hole is formed in the conical surface, and the lower end of the balancing weight is matched with the conical surface.

3. A piston assembly according to claim 2, wherein:

the plugging piece is an annular sealing ring sleeved on the periphery of the balancing weight.

4. A piston assembly according to claim 3, wherein:

the outer diameter of the blocking piece sleeved on the balancing weight is smaller than the inner diameter of the liquid passing cavity.

5. A piston assembly according to claim 1, wherein:

the lateral wall of crossing the sap cavity is provided with spacing hole, the outer wall of switching ring be provided with spacing relative with spacing hole, the spacing inlays to be established in the spacing hole.

6. A piston assembly according to claim 1, wherein:

the adapter part is an internal thread which is arranged on the inner wall of the adapter ring and provided with a fracture.

7. A piston assembly according to claim 1, wherein:

the liquid filter is characterized by further comprising a limiting ring, the limiting ring is arranged in the liquid passing cavity and located below the adapter ring, a limiting flange with the outer diameter larger than the inner diameter of the limiting ring is arranged on the periphery of the balancing weight, and the limiting flange is movably arranged between the bottom of the liquid passing cavity and the limiting ring.

8. A piston assembly according to claim 7, wherein:

the piston inner sealing ring is arranged between the adapter ring and the limiting ring, and the periphery of the piston inner sealing ring is tightly attached to the side wall of the liquid passing cavity.

9. A piston assembly according to claim 1, wherein:

the piston outer sealing ring is sleeved on the periphery of the piston body; and the periphery of the piston body is provided with an installation ring groove for matching the outer sealing ring of the piston.

10. A separator arrangement including a piston assembly according to any one of claims 1 to 9, wherein:

the piston assembly is matched with the push rod, the container and the plug;

the end part of the push rod is matched with the adapter part, and the distance between the end part of the push rod and the bottom of the liquid passing cavity is adjustable;

the container is provided with a centrifugal cavity matched with the piston assembly, and the bottom of the centrifugal cavity is provided with a liquid outlet;

the plug is detachably matched with the liquid outlet.

Technical Field

The invention relates to the technical field of adipose tissue treatment, in particular to a piston assembly and a separating device.

Background

In the prior art, the means for obtaining adipose tissue are: extracting tissue fluid from a driven object, placing the tissue fluid into a centrifugal machine for centrifugation, sequentially layering the tissue fluid into three layers of free grease, adipose tissue and waste liquid from top to bottom after centrifugation, and then penetrating the free grease layer through a needle tube to extract the adipose tissue.

The disadvantages of the existing method are that: because the needle tube is manually controlled to extract, the risk of misoperation exists, the head of the needle tube does not penetrate through a free grease layer or directly penetrates into a waste liquid layer, and adipose tissues cannot be extracted; even if the procedure is done properly so that the needle cannula head is just above the adipose tissue layer, there is a possibility that free grease or waste fluid may be drawn by hand shaking during the drawing. The existing method has great operation difficulty and needs high concentration, otherwise, the extracted adipose tissues can be mixed with other substances.

Disclosure of Invention

The invention aims to provide a piston assembly and a separating device, which can quickly obtain high-quality effective adipose tissues, reduce the mixing of impurities and have convenient and quick operation.

In order to achieve the above purpose, the solution of the invention is:

a piston assembly comprises a piston body, a balancing weight, a plugging piece and a transfer ring; the piston body is provided with a liquid passing cavity, and the bottom of the liquid passing cavity is provided with a liquid passing hole; the balancing weight is movably matched in the liquid passing cavity; the blocking piece is arranged on the balancing weight and falls along with the self weight of the balancing weight to block the liquid passing hole; the adapter ring is arranged on the side wall of the liquid passing cavity, an adapter part is arranged on the inner wall of the adapter ring, and the adapter part is used for assembling a push rod.

The bottom of the liquid passing cavity is a conical surface, the liquid passing hole is formed in the conical surface, and the lower end of the balancing weight is matched with the conical surface.

The plugging piece is an annular sealing ring sleeved on the periphery of the balancing weight.

The outer diameter of the blocking piece sleeved on the balancing weight is smaller than the inner diameter of the liquid passing cavity.

The lateral wall of crossing the sap cavity is provided with spacing hole, the outer wall of switching ring be provided with spacing relative with spacing hole, the spacing inlays to be established in the spacing hole.

The adapter part is an internal thread which is arranged on the inner wall of the adapter ring and provided with a fracture.

The piston assembly further comprises a limiting ring, the limiting ring is arranged in the liquid passing cavity and located below the adapter ring, a limiting flange is arranged on the periphery of the balancing weight, the outer diameter of the limiting flange is larger than the inner diameter of the limiting ring, and the limiting flange is movably arranged between the bottom of the liquid passing cavity and the limiting ring.

The piston assembly further comprises a piston inner sealing ring, the piston inner sealing ring is arranged between the adapter ring and the limiting ring, and the periphery of the piston inner sealing ring is tightly attached to the side wall of the liquid passing cavity.

The piston assembly further comprises a piston outer sealing ring sleeved on the periphery of the piston body; and the periphery of the piston body is provided with an installation ring groove for matching the outer sealing ring of the piston.

The balancing weight is made of a metal material.

The separation device comprises the piston assembly, a push rod and a container which are matched with the piston assembly, and a plug; the end part of the push rod is matched with the adapter part, and the distance between the end part of the push rod and the bottom of the liquid passing cavity is adjustable; the container is provided with a centrifugal cavity matched with the piston assembly, and the bottom of the centrifugal cavity is provided with a liquid outlet; the plug is detachably matched with the liquid outlet.

After the technical scheme is adopted, the piston assembly can be used as a cover of the container, liquid substances are prevented from leaking during centrifugation, and free grease on the uppermost layer after centrifugation can be separated from adipose tissues in the pushing-down process of the piston assembly, so that the free grease is prevented from remaining in the container; the separating device has the technical effects that the free grease on the uppermost layer and the waste liquid on the lowermost layer can be respectively taken out from the container by simply operating the push rod, the adipose tissues in the middle layer, namely the substances required clinically, are left, the whole structure is simple, the operation is simple and convenient, the impurities mixed by misoperation can be reduced, and the quality of the adipose tissues required clinically is improved.

Drawings

FIG. 1 is a first perspective view of a piston assembly according to an embodiment of the present invention;

FIG. 2 is a perspective view of a piston assembly according to an embodiment of the present invention

FIG. 3 is a first exploded view of a piston assembly according to an embodiment of the present invention;

FIG. 4 is a second exploded view of the piston assembly according to the embodiment of the present invention;

FIG. 5 is a front view of a piston assembly according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a piston assembly according to an embodiment of the present invention;

FIG. 7 is a schematic view of a separating apparatus according to an embodiment of the present invention;

FIG. 8 is a first schematic representation of the use of an embodiment of the present invention;

FIG. 9 is a second schematic representation of the use of an embodiment of the present invention;

FIG. 10 is a third schematic representation of the use of an embodiment of the present invention;

the reference numbers illustrate:

1-a piston body; 11-a liquid passing cavity; 12- -a liquid through hole;

13- -a limiting hole; 14- - -a mounting ring groove; 2-a counterweight;

21-a position-defining flange; 3-a closure; 4-an adapter ring;

41- - -a transition part; 42- - -a stopper; 43- - -fracture;

5- -a stop collar; 6- -piston inner seal ring; 7- -piston outer seal ring;

8-a push rod; 9- -a container; 91-centrifugal chamber;

92- -a liquid outlet; 10- - -a stopper.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

Referring to fig. 1 to 6, the present invention includes a piston assembly including a piston body 1, a weight block 2, a plugging member 3, and an adaptor ring 4;

the piston body 1 is provided with a liquid passing cavity 11, and the bottom of the liquid passing cavity 11 is provided with a liquid passing hole 12;

the balancing weight 2 is movably matched in the liquid passing cavity 11;

the blocking piece 3 is arranged on the balancing weight 2 and falls along with the self weight of the balancing weight 2 to block the liquid passing hole 12;

the adapter ring 4 is arranged on the side wall of the liquid passing cavity 11, and the inner wall of the adapter ring 4 is provided with an adapter part 41, and the adapter part 41 is used for assembling the push rod 8.

The specific implementation mode of the piston assembly is as follows:

the bottom of the liquid passing cavity 11 is a conical surface, the liquid passing hole 12 is formed in the conical surface, the lower end of the balancing weight 2 is matched with the conical surface, and the lower end of the balancing weight is attached to the conical surface when the configuration block naturally falls down, so that the position of the liquid passing hole 12 can be blocked by the plugging piece 3. In this embodiment, the blocking member 3 is an annular sealing ring sleeved on the periphery of the counterweight block 2, and the annular blocking member 3 is fitted between the conical surface and the counterweight block 2 in an annular sealing manner, so that the effect of blocking the liquid passing hole 12 can be improved; further, the external diameter of blocking piece 3 cover after putting on balancing weight 2 is less than the internal diameter of crossing sap cavity 11, and blocking piece 3 blocks whole sap cavity 11 and leads to the unable pouring out of liquid material when avoiding using.

The number of the liquid passing holes 12 is two, and the two liquid passing holes are respectively positioned at two sides of the piston body 1, so that the flow of the liquid substance entering the liquid passing cavity 11 can be improved.

The above-mentioned lateral wall of crossing the sap cavity 11 is provided with spacing hole 13, and the outer wall of adapter ring 4 is provided with the stopper 42 relative with spacing hole 13, and stopper 42 inlays and establishes in spacing hole 13 to make adapter ring 4 fix in piston body 1, then after external push rod 8, can drive adapter ring 4 through push rod 8 in order to promote piston body 1.

The adaptor portion 41 is an internal thread which is arranged on the inner wall of the adaptor ring 4 and has a fracture 43, and by arranging the fracture 43, when the liquid substance is practically used in the invention, the liquid substance can conveniently flow out from between the adaptor ring 4 and the push rod 8 through the fracture 43.

In order to prevent the balancing weight 2 from falling out of the liquid passing cavity 11, the invention is also provided with a limiting ring 5, the limiting ring 5 is arranged in the liquid passing cavity 11 and is positioned below the adapter ring 4, the periphery of the balancing weight 2 is provided with a limiting flange 21 with the outer diameter larger than the inner diameter of the limiting ring 5, the limiting flange 21 is movably arranged between the bottom of the liquid passing cavity 11 and the limiting ring 5 so as to provide an up-and-down moving space for the balancing weight 2, and the limiting flange 21 limits the maximum rising distance of the balancing weight 2, so that the balancing weight 2 can be prevented from falling out of the liquid passing cavity 11.

Furthermore, in order to prevent the liquid substance from flowing out from the gaps between the liquid passing cavity 11 and the limiting ring 5 and the adapter ring 4 to cause pollution when in use, the invention is also provided with the piston inner sealing ring 6, the piston inner sealing ring 6 is arranged between the adapter ring 4 and the limiting ring 5, and the periphery of the piston inner sealing ring 6 is tightly attached to the side wall of the liquid passing cavity 11.

The piston of the invention also comprises a piston outer sealing ring 7 sleeved on the periphery of the piston body 1, after the piston outer sealing ring 7 is arranged, the sealing effect of the periphery of the piston body 1 can be improved when the piston is used, meanwhile, the piston body 1 can be made of non-elastic materials such as plastics, and the sealing function is realized by the elastic piston outer sealing ring 7. In the embodiment, the outer periphery of the piston body 1 is provided with a mounting ring groove 14 for matching the piston outer sealing ring 7; further, two mounting ring grooves 14 are provided, and correspondingly, two piston outer seal rings 7 are also provided.

The weight member 2 is made of a metal material, preferably stainless steel, titanium, or the like. The clump weight 2 has the function of providing enough heavy weight, and particularly when the piston assembly is matched in the container 9 and placed in a centrifuge for use, the clump weight 2 can drive the blocking piece 3 to block the liquid passing hole 12 downwards, so that the centrifugal cavity 91 of the container 9 is sealed, and a larger pressing acting force is provided in the centrifugation process, so that adipose tissues are further extruded, more mature adipose cells are damaged, more free grease is discharged, and effective adipose tissues with higher quality are clinically obtained.

Referring to fig. 7, the invention also includes a separating device comprising a piston assembly as described above, a push rod 8 and a container 9 fitted with the piston assembly, and a stopper 10;

the end part of the push rod 8 is matched at the adapter part 41, and the distance between the push rod and the bottom of the liquid passing cavity 11 is adjustable;

the container 9 is provided with a centrifugal cavity 91 matched with the piston assembly, and the bottom of the centrifugal cavity 91 is provided with a liquid outlet 92;

the stopper 10 is detachably fitted to the liquid outlet 92.

The specific implementation mode of the separation device is as follows:

the above-mentioned push rod 8 and container 9 and piston assembly adaptation understand specifically that, the push rod 8 can be assembled with the switching portion 41 of the switching ring 4, make the push rod 8 and the switching ring 4 relatively fixed, namely the push rod 8 is opposite to the piston body 1, so that can drive the piston body 1 to move when operating the push rod 8, and the centrifugal cavity 91 is sealed with the periphery activity of the piston body 1, avoids the liquid material from flowing out from the clearance of the centrifugal cavity 91 and the piston body 1.

The transfer part 41 in the reference piston assembly is arranged as an internal thread, an external thread can be arranged at the end part of the push rod 8, the push rod 8 is in threaded connection with the transfer ring 4, and the distance between the push rod 8 and the bottom of the liquid passing cavity 11 can be adjusted by rotating the push rod 8.

The detachable connection between the plug 10 and the liquid outlet 92 can be achieved by a screw connection, a snap connection, or the like.

Referring to fig. 8 to 10, one of the usage modes of the present invention is:

firstly, a liquid outlet 92 is blocked by a plug 10, adipose tissue fluid to be centrifuged is led into or sucked into a centrifugal cavity 91, then a piston assembly is placed into the centrifugal cavity 91, at the moment, a balancing weight 2 naturally descends due to self weight to drive a blocking piece 3 to block a fluid passing hole 12, the piston assembly can be regarded as a cover of a container 9 to realize sealing, then the whole body is placed into a centrifuge to be centrifuged, and layered tissue fluid as shown in figure 8, namely free grease, adipose tissue and waste fluid are obtained from top to bottom in sequence (shown by 3 different filling patterns in the figure);

secondly, referring to fig. 9, the push rod 8 is adjusted to ensure that a gap enough for the balance weight block 2 to rise is left between the push rod 8 and the balance weight block 2, then the push rod 8 is pushed downwards to ensure that the push rod 8 drives the piston body 1 to descend, because the plug 10 is still blocked at the liquid outlet 92 at the moment, in the descending process of the piston body 1, the free grease at the uppermost layer enters the liquid passing hole 12, and pushes away the balance weight block 2 when the hydraulic pressure is increased so that the free grease enters the liquid passing cavity 11 until the free grease completely enters the liquid passing cavity 11, and then the separation of the free grease and the adipose tissue can be realized so as to pour out the free grease;

looking at fig. 10, after pouring free grease, adjust push rod 8 once more, make push rod 8 support balancing weight 2, no longer reserve the clearance that rises for balancing weight 2, then take off end cap 10, push rod 8 pushes down, make push rod 8 drive the back stopper body and continue to descend, because balancing weight 2 no longer has mobilizable clearance, liquid hole 12 is crossed throughout by stifled death to the in-process that piston body 1 descends, and then release container 9 with the waste liquid of lower floor, can realize the separation of adipose tissue and waste liquid, finally obtain the adipose tissue in intermediate level.

Through the scheme, the piston assembly can be used as a cover of the container 9, liquid substances are prevented from leaking during centrifugation, and free grease on the uppermost layer after centrifugation can be separated from adipose tissues in the pushing-down process of the piston assembly, so that the free grease is prevented from remaining in the container 9; the separating device has the technical effects that the free grease on the uppermost layer and the waste liquid on the lowermost layer can be respectively taken out from the container 9 by simply operating the push rod 8, the adipose tissues on the middle layer, namely the substances required by clinic, are left, the whole structure is simple, the operation is simple and convenient, the impurities mixed by misoperation can be reduced, and the adipose tissue quality required by clinic is improved.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.