CN219111662U - Quick assembly disassembly formula centrifuging tube - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, and provides a quick-disassembly centrifuge tube which comprises a tube body with two open ends, a piston movably penetrating through the tube body, and a push rod detachably connected with the piston, wherein the piston comprises a rubber seat, one end of the piston is rotatably connected with the rubber seat, and the other end of the piston is provided with a chute seat of a slope sliding rail, and the push rod is in sliding buckling connection with the slope sliding rail. The utility model aims to solve the problem that the sealing device and the pushing rod of the existing separating tube used for blood, cell suspension, exosome-containing solution and other solutions are insufficient in disassembly and separation flexibility, and provides a quick disassembly and assembly type centrifuge tube. The utility model can rapidly disassemble the push rod and the piston, and does not influence the tightness of the piston to the centrifuge tube.

Description

Quick assembly disassembly formula centrifuging tube

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a quick detachable centrifuge tube.

Background

The centrifugal technology is mainly used for separating and preparing various biological samples, and the biological sample suspension is placed in a centrifugal tube and subjected to high-speed rotation, so that suspended tiny particles (such as organelles, precipitation of biological macromolecules and the like) are settled at a certain speed under the action of huge centrifugal force, and are separated from a solution; a centrifuge tube is a device for centrifugal separation of liquids and the like, and is generally a cylindrical hollow tube, and a storage space formed by the inner wall of the hollow tube is a cylinder with the same diameter. In the medical field, centrifuge tubes are often used for separating blood and cell suspensions, and in some treatments, a certain layer of liquid is required to be treated after the mixed liquid such as blood, cell suspension and the like is extracted and centrifuged for layering.

The centrifuge tube commonly used in the market comprises a tube body and a tube cover, wherein the bottom of the tube body is a conical part, the centrifuge tube is placed into a centrifugal device for centrifugal layering after blood, cell suspension, exosome-containing solution and other solutions are collected into the centrifuge tube, and layered liquid after layering is manually extracted and layered through another injector. Because the centrifugation and separation modes are easy to pollute and leak in the transfer process, the quality of separated layered liquid is influenced, and thus the treatment effect is influenced, a piston type medical centrifuge tube is currently provided, and the piston type medical centrifuge tube comprises a centrifuge tube body and a piston arranged in the centrifuge tube body; an external column is arranged above the piston and is detachably connected with the long handle through threads, so that if part of the components are polluted, normal use is not influenced.

The existing centrifuge tube scheme specifically adopts the mode of externally connecting a column with a long handle in a threaded manner to realize the detachable connection of the piston and the long handle, but in practical application, the centrifugal treatment is usually required to be carried out by repeatedly entering a separator, the separation operation after centrifugal layering is repeated, the long handle and the piston are required to be frequently disassembled and assembled by personnel, the operation is not very flexible in the operation in view of the phenomenon, the tightness of the piston to a tube body is very easily influenced in the connection process, and on the other hand, if the centrifuge tube is required to be matched with an automatic machine to realize the extrusion or the suction of internal liquid, the existing connection mode cannot realize the rapid automatic connection, or the intervention connection is required to be carried out manually, so that the centrifuge tube is very inconvenient to use.

Disclosure of Invention

The utility model aims to solve the problem that the sealing device and the pushing rod of the existing separating tube are not flexible to assemble and disassemble, and provides a quick assembling and disassembling centrifuge tube. The utility model can rapidly disassemble the push rod and the piston, and does not influence the tightness of the piston to the centrifuge tube.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a quick assembly disassembly formula centrifuging tube, includes both ends open-ended body, the activity wears to establish the piston in the body to and the push rod of being connected can be dismantled with the piston, the piston includes the rubber seat, and one end is connected and the other end is equipped with the spout seat of domatic slide rail with the rubber seat rotation, push rod and domatic slide rail slip lock joint.

It should be noted that, sliding fastening with the push rod of the slope slide rail of the chute seat, when push rod and piston are dismantled, push rod and slope slide rail of the chute seat butt, because rubber seat and chute seat rotate and are connected, axial thrust is transmitted by the push rod to the slope slide rail of the chute seat, the component force of slope slide rail can make the chute seat rotate under the push rod promotes, the push rod can remove along the slope slide rail of chute seat, until push rod and chute seat accomplish fastening, this kind of connected mode is different from traditional detachable connected mode, need not the manual work to carry out the rotatory fastening of push rod, only need a push rod straight line to advance the action and can accomplish the fastening of push rod and chute seat, fastening speed is fast, and the fastening is convenient, simultaneously this kind of mode also can not produce too big axial pressure to the rubber seat in the connected process, thereby can not influence the volume of liquid in the body because of the giving of the action of dismouting, (influence including vibrations, rotation, disturbance layering state etc.), the accuracy of follow-up liquid separation process is ensured.

Further, the chute seat comprises a rotating seat, one end of the rotating seat is connected with the rubber seat in a rotating mode, the other end of the rotating seat is provided with a plurality of arc-shaped slope sliding rails which are evenly distributed along the circumferential direction and connected end to end with the slope bottom and the slope top, and a hanging groove is formed in the slope bottom of each arc-shaped slope sliding rail.

Further, the slope top of the arc slope slide rail is provided with a smooth transition chamfer.

Further, the number of the arc-shaped slope sliding rails is at least two.

Further, the push rod comprises a push rod main body, a buckling block which is arranged at one end of the push rod main body and is matched with the hooking groove, and a pushing handle which is arranged at the other end of the push rod main body. It should be noted that the specific structure and shape of the putter body include, but are not limited to, cross-shaped, cylindrical, spiral, regular prism, etc., and the putter body adopting the specific structure and shape does not affect the achievement of the object of the present utility model.

In addition, the arc-shaped slope sliding rails of the chute seat can play a very good guiding role, the number of the arc-shaped slope sliding rails is at least two, when the number of the arc-shaped slope sliding rails is two, the two arc-shaped slope sliding rails are arranged in a central symmetry manner, the rotation angle of each arc-shaped slope sliding rail is close to 180 degrees, the chute seat has a small rotation angle relative to the rubber seat when the push rod contacts the arc-shaped slope until the push rod is in buckling connection with the hanging groove in the actual operation process, the buckling speed is high, quick buckling can be realized, and meanwhile, the stress influence on the rubber seat in the push rod buckling process is further reduced due to the small rotation; similarly, when the number of the circular arc-shaped slope sliding rails is greater than two, the circular arc-shaped slope sliding rails are uniformly distributed along the circumferential direction and are connected end to end with the slope bottom and the slope top, the sum of the rotation angles of all the circular arc-shaped slope sliding rails is 360 degrees, the rotation angles of the summarized chute seats in the buckling process can be reduced to a certain extent, the buckling speed is improved, and meanwhile the influence on liquid in the pipe in the buckling process is reduced. Meanwhile, after the buckling is finished, as the buckling block of the push rod is in contact with the hanging groove at the bottom of the arc-shaped slope slide rail, the push rod cannot fall off actively, subsequent pushing and drawing actions can be realized, and when the push rod is disassembled, the buckling block of the push rod can be rotated out reversely along the arc-shaped slope slide rail manually, so that the disassembly can be realized.

Further, the buckling block comprises a plurality of smooth cylinders symmetrically arranged on one end port of the push rod main body. Like this, adopt smooth cylinder can guarantee the smoothness nature of push rod and the domatic slide rail's of circular arc type contact in-process, guarantee lock joint result of use and efficiency.

Further, one end of the rubber seat, which is opposite to the push rod, is a conical guide part, the other end of the rubber seat is provided with a circular ring clamping groove, and the rotating seat can rotate along the axis of the rotating seat in the circular ring clamping groove.

It should be noted that, the rotation connection of the annular clamping groove and the rotating seat needs to ensure that the rotation resistance is small, so as to further reduce the stress degree of the pushing rod in the pushing process.

Further, a plurality of annular sealing ribs which are arranged in parallel are arranged on the circumference of the rubber seat, and the annular sealing ribs are tightly contacted with the inner part of the pipe body.

Furthermore, the openings at the two ends of the pipe body are a small-caliber opening and a large-caliber opening respectively, the piston movably penetrates through the large-caliber opening end, and a detachable sealing end cover is further arranged at the small-caliber opening end.

Therefore, by configuring the sealing end cover at one end of the tube body, on one hand, the application scene of the device can be increased, for example, the sealing end cover and the piston can change the tube body into a sealing state, when the pushing rod is not connected, the tube body can be used as a carrier in the process of centrifuging and separating mixed liquid such as blood, cell suspension, exosome-containing solution and the like, the tube body is directly subjected to centrifugal operation, the pushing rod is connected and the sealing end cover is taken down, and the layered liquid (blood, cell suspension, exosome-containing solution and the like) which is subjected to centrifugal layering can be directly separated.

Furthermore, a light shield is sleeved outside the tube body, and a thin strip-shaped visual window for observing the internal liquid level is formed in the light shield.

The light shield is provided to reduce the influence of external light on the layered liquid in the body during the treatment in the subsequent separation process of the layered liquid (blood, cell suspension, exosome-containing solution, etc.).

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the quick connection of the push rod and the rubber seat is realized through the chute seat with one end rotatably connected with the rubber seat and the other end in sliding buckling with the push rod, the chute seat can rotate relative to the rubber seat under the pushing force of the push rod in the process of abutting the push rod and the slope slide rail of the chute seat, the push rod can move along the slope slide groove of the chute seat until the push rod and the chute seat are buckled, the connection mode is different from the traditional detachable connection mode, the buckling is completed without manually rotating the push rod, the buckling of the push rod and the chute seat can be completed only by linearly feeding the push rod, the buckling speed is high, and the buckling is convenient.

(2) In the buckling process of the push rod, the excessive axial pressure on the rubber seat is avoided, so that the volume of liquid in the pipe body is not influenced, and the accuracy of the subsequent liquid separation process is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic illustration of the structure of the piston of the present utility model;

FIG. 3 is a schematic view of a push rod according to the present utility model;

fig. 4 is a schematic structural view of a pipe body according to the present utility model.

The graphic indicia are illustrated as follows:

the device comprises a pipe body 1, a sealing end cover 11, a light shield 12, a piston 2, a rubber seat 21, a circular clamping groove 211, a circular sealing rib 212, a sliding groove 22, a rotating seat 221, a circular arc slope sliding rail 222, a hanging groove 223, a push rod 3, a push rod body 31, a buckling block 32 and a push handle 33.

Detailed Description

The utility model is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

Example 1

As shown in fig. 1 to 4, a quick assembly disassembly type centrifuge tube comprises a tube body 1 with two open ends, a piston 2 movably penetrating through the tube body, and a push rod 3 detachably connected with the piston 2, wherein the piston 2 comprises a rubber seat 21, one end of the piston 2 is rotatably connected with the rubber seat 21, a chute seat 22 of a slope sliding rail is arranged at the other end of the piston 2, and the push rod 3 is in sliding buckling connection with the slope sliding rail.

It should be noted that, sliding fastening is performed between the slope slide rail of the chute seat 22 and the push rod 3, when the push rod 3 and the piston 2 are disassembled and assembled, the push rod 3 is abutted against the slope slide rail of the chute seat 22, because the rubber seat 21 is rotationally connected with the chute seat 22, the axial thrust is transmitted to the slope slide rail of the chute seat 22 by the push rod 3, the component force of the slope slide rail can enable the chute seat 22 to rotate under the pushing of the push rod 3, the push rod 3 can move along the slope slide rail of the chute seat 22 until the push rod 3 and the chute seat 22 are fastened, the connection mode is different from the traditional detachable connection mode, the fastening is completed without manually rotating the push rod, the fastening of the push rod 3 and the chute seat 22 can be completed by only one push rod 3 in a straight line, the fastening speed is high, the fastening is convenient, meanwhile, the mode also can not generate excessive axial pressure on the rubber seat 21 in the connection process, thereby not affecting the volume of liquid contained in the pipe body 1, not affecting the liquid state in the pipe, including vibration, rotation, layering state and the like, ensuring the accuracy of the subsequent liquid separation process.

As shown in fig. 2, the chute seat 22 includes a rotating seat 221 with one end rotationally connected with the rubber seat 21, and two arc slope slide rails 222 arranged in central symmetry are disposed at the other end of the rotating seat 221, and a hooking slot 223 is formed at the slope bottom of each arc slope slide rail 222.

As shown in fig. 2, the rotation angles of the two circular arc slope slide rails 222 are 180 ° respectively, and the tops of the circular arc slope slide rails 222 are provided with smooth transition chamfers.

As shown in fig. 3, the push rod 3 includes a push rod body 31, a catching block 32 provided at one end of the push rod body 31 for being engaged with the catching groove 223, and a push handle 33 provided at the other end of the push rod body 31.

In this embodiment, the putter body 31 is a cross-shaped putter body.

Like this, the domatic slide rail 222 of circular arc type of spout seat 22 can play fine guide effect to circular arc type is domatic slide rail 222 and is central symmetry setting, and the rotation angle of two circular arc type domatic slide rails 222 is close 180, can guarantee at actual operation in-process, push rod 3 when touching circular arc type domatic 222 to accomplish the lock joint with the hooking groove 223, and spout seat 22 is within 180 for the rotation of rubber seat 21, and lock joint is fast, can realize quick lock joint, and less rotation has further reduced the atress influence to rubber seat 21 of push rod 3 lock joint in-process simultaneously. Meanwhile, after the buckling is finished, as the buckling block 32 of the push rod 3 is in contact with the hanging groove 223 at the slope bottom of the circular arc slope slide rail 222 to bear force, the push rod 3 cannot fall off actively, the subsequent pushing and drawing actions can be realized, and when the push rod is disassembled, the buckling block of the push rod 3 can be rotated out reversely along the circular arc slope slide rail 222 by manpower, so that the disassembly can be realized.

As shown in fig. 3, the snap block 32 includes two smooth cylinders symmetrically disposed on one end port of the push rod body 31. Thus, the smooth cylinder can ensure the smoothness of the push rod 3 and the arc slope slide rail 222 in the contact process, and the fastening using effect and efficiency are ensured.

As shown in fig. 2, one end of the rubber seat 21 facing away from the push rod 3 is a conical guide part, the other end of the rubber seat 21 is provided with a circular clamping groove 211, and the rotating seat 221 can rotate along the axis of the rotating seat in the circular clamping groove 211.

In this embodiment, the rotational resistance of the rotational connection between the annular clamping groove 211 and the rotational seat 221 is small, so as to further reduce the stress degree of the pushing rod 3 during the pushing process.

As shown in fig. 2, a plurality of annular sealing ribs 212 are arranged in parallel in the circumferential direction of the rubber seat 21, and the annular sealing ribs 212 are in close contact with the inside of the pipe body 1.

As shown in fig. 4, the openings at two ends of the pipe body 1 are a small-caliber opening and a large-caliber opening respectively, the piston 2 movably penetrates through the large-caliber opening end, and a detachable sealing end cover 11 is further arranged at the small-caliber opening end.

In this way, by disposing the seal cap 11 at one end of the tube body 1, on the one hand, the application scene of the device can be increased, the seal cap 11 and the piston 2 can change the tube body 1 into a sealed state, when the push rod 3 is not connected, the tube body 1 can be used as a carrier in the process of centrifuging and separating mixed liquid such as blood, cell suspension and exosome-containing solution, the tube body 1 can be directly subjected to centrifugal operation, the push rod 3 is connected and the seal cap 11 is removed, and the layered liquid which is subjected to centrifugal layering can be directly separated.

As shown in fig. 4, a light shield 12 is further sleeved outside the tube body, and a thin strip-shaped visual window for observing the internal liquid level is formed in the light shield 12.

In this way, the light shield 12 is provided in order to reduce the influence of external light on the layered liquid in the body during the treatment during the subsequent separation of the layered liquid (blood, cell suspension, etc.).

Example 2

The embodiment is similar to embodiment 1, except that in the embodiment, the number of the circular arc slope slide rails 222 is four, the four circular arc slope slide rails 222 are uniformly distributed along the circumferential direction of the chute seat 22, the slope bottom is connected with the slope top end to end, the rotation angle of each circular arc slope slide rail 222 is 90 degrees, and the slope top of each circular arc slope slide rail 222 is provided with a smooth transition chamfer. Like this, the domatic slide rail 222 of circular arc of spout seat 22 can play fine guide effect, adopts four domatic slide rails 222 of circular arc simultaneously can guarantee at actual operation in-process, push rod 3 when touching circular arc domatic 222 to accomplish the lock joint with the hooking groove 223, and the atress of spout seat 22 is more even, is difficult for appearing crookedly, and spout seat 22 is within 90 for the rotation of rubber seat 21, and lock joint is fast, can realize quick lock joint, and less rotation has further reduced the atress influence to rubber seat 21 of push rod 3 lock joint in-process simultaneously. Meanwhile, after the buckling is finished, as the buckling block 32 of the push rod 3 is in contact with the hanging groove 223 at the slope bottom of the circular arc slope slide rail 222 to bear force, the push rod 3 cannot fall off actively, the subsequent pushing and drawing actions can be realized, and when the push rod is disassembled, the buckling block of the push rod 3 can be rotated out reversely along the circular arc slope slide rail 222 by manpower, so that the disassembly can be realized.

Other structures and principles in this embodiment are the same as those in embodiment 1.

Example 3

The difference between this embodiment and embodiment 1 is that in this embodiment, the number of the arc-shaped slope slide rails 222 is three, the four arc-shaped slope slide rails 222 are uniformly distributed along the circumferential direction of the chute seat 22, and the slope bottom and the slope top are connected end to end, the rotation angle of each arc-shaped slope slide rail 222 is 120 °, and the slope top of each arc-shaped slope slide rail 222 is provided with a smooth transition chamfer. Like this, the domatic slide rail 222 of circular arc of spout seat 22 can play fine guide effect, adopts three circular arc domatic slide rail 222 simultaneously can guarantee at actual operation in-process, push rod 3 when touching circular arc domatic 222 to accomplish the lock joint with the hooking groove 223, and the atress of spout seat 22 is more even, is difficult for appearing crookedly, and spout seat 22 is within 120 for the rotation of rubber seat 21, and lock joint is fast, can realize quick lock joint, and less rotation has further reduced the atress influence to rubber seat 21 of push rod 3 lock joint in-process simultaneously. Meanwhile, after the buckling is finished, as the buckling block 32 of the push rod 3 is in contact with the hanging groove 223 at the slope bottom of the circular arc slope slide rail 222 to bear force, the push rod 3 cannot fall off actively, the subsequent pushing and drawing actions can be realized, and when the push rod is disassembled, the buckling block of the push rod 3 can be rotated out reversely along the circular arc slope slide rail 222 by manpower, so that the disassembly can be realized.

Other structures and principles in this embodiment are the same as those in embodiment 1.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a quick assembly disassembly formula centrifuging tube, includes both ends open-ended body (1), the activity wears to establish piston (2) in body (1), and with piston (2) can dismantle push rod (3) of being connected, a serial communication port, piston (2) include rubber seat (21), one end with rubber seat (21) rotate and are connected and the other end is equipped with spout seat (22) of domatic slide rail, push rod (3) with domatic slide rail slip lock joint.

2. The quick assembly disassembly formula centrifuging tube of claim 1, wherein, spout seat (22) include one end with rubber seat (21) rotate rotation seat (221) of being connected, the other end of rotation seat (221) is equipped with along circumference evenly distributed and slope bottom and slope top end to end's a plurality of circular arc slope slide rail (222), and the slope bottom department of every circular arc slope slide rail (222) all has seted up articulates groove (223).

3. The quick assembly disassembly centrifuge tube of claim 2, wherein a crest of the arcuate ramp slide rail (222) is provided with a smooth transition chamfer.

4. The quick release centrifuge tube of claim 2, wherein the number of arcuate ramp slide rails (222) is at least two.

5. The quick detachable centrifuge tube according to claim 2, wherein the push rod (3) comprises a push rod main body (31), a fastening block (32) arranged at one end of the push rod main body (31) and used for being matched with the hanging groove (223), and a pushing handle (33) arranged at the other end of the push rod main body (31).

6. The quick release centrifuge tube of claim 5, wherein said snap-fit blocks (32) comprise a plurality of smooth cylinders disposed on one end port of said pushrod body (31).

7. The quick assembly disassembly centrifuge tube according to claim 2, wherein one end of the rubber seat (21) facing away from the push rod (3) is a conical guide part, the other end of the rubber seat (21) is provided with a circular clamping groove (211), and the rotating seat (221) can rotate along the axis of the rotating seat in the circular clamping groove (211).

8. The quick detachable centrifuge tube according to claim 7, wherein a plurality of annular sealing ribs (212) which are arranged in parallel are arranged on the circumferential direction of the rubber seat (21), and the annular sealing ribs (212) are in tight contact with the inside of the tube body (1).

9. The quick assembly disassembly centrifuge tube according to claim 1, wherein the openings at the two ends of the tube body (1) are respectively a small-caliber opening and a large-caliber opening, the piston (2) movably penetrates through the large-caliber opening, and a detachable sealing end cover (11) is further arranged at the small-caliber opening.

10. The quick assembly disassembly formula centrifuging tube of claim 9, wherein still cover is equipped with lens hood (12) in body (1) outside, set up the thin strip visual window that is used for observing inside liquid level on lens hood (12).

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