JP6248482B2 - Centrifuge rotor and centrifuge equipped with the centrifuge rotor - Google Patents

Description

  The present invention relates to a centrifuge rotor suitable for stirring a biological sample such as sputum collected from a patient and a reagent, and a centrifuge equipped with the centrifuge rotor.

In general, a tube container with a lid for performing reaction or detection of a target substance in a sample by stirring the sample and the reagent is known, for example. A tube container with a lid consists of a cylindrical tube body with a tapered bottom and a lid that closes the upper opening of the tube body, and the lid can be opened and closed by a flexible hinge extending from the tube body. It is an integral structure attached to the. In the tube container with a lid, a reagent for performing reaction analysis or detection analysis at the time of contact with the sample is provided in advance, and the place to be provided is the inside of the lid, the inner peripheral surface of the tube body, or the tube There are types provided at the bottom of the main body. (See Patent Documents 1 and 2)
Both types are used by setting a tube container with a lid to a centrifuge rotor of a centrifuge for stirring when contacting a reagent and a sample. A wide variety of centrifuges are known, but especially for centrifuges made for developing countries, it is easy for anyone to operate and lowers manufacturing costs. In order to suppress this, it has become a product that has a single function and is made small and compact. An example is shown in FIG.

  In the conventional centrifuge 100 shown in FIG. 9, a centrifuge rotor 101 </ b> R is rotatably disposed in an internal space in the centrifuge body 101, and an upper portion of the internal space can be opened and closed by an opening / closing lid 102. The rotating body 103 constituting the centrifuge rotor 101R is mounted on a rotating shaft 104 that is controlled to rotate necessary for stirring. The rotating body 103 is formed in a rectangular plate shape, and both ends are bent short upward. The bent bent edge portion 105 has a simple shape in which eight round hole-shaped set holes 106 for mounting and setting the tube container 200 with a lid are provided.

  Therefore, when there is one tube container 200 with a lid, one set hole 106 is selected and used. In addition, when the multiple tube containers 200 are eight, the entire set holes 106 are used, and the bottom portion 200T of the tube container 200 is positioned in the set holes 106 from the inner side on the rotating shaft 104 side. The lid 200H is attached by being fully inserted until it hits the set hole 106.

Japanese Patent No. 5057228 Japanese Patent No. 5209990

  The above-mentioned tube container 200 with a lid is divided into a single case made by itself and a multi-tube case made by 8 stations. In a place away from the support, the connecting structure has the flexibility to hang down by its own weight, and does not have an integral rigid structure.

  For this reason, even when the multiple tube containers 200 inserted and set in the set holes 106 are removed from the set holes 106, the entire tube containers 200 can be inserted into the set holes 106 even if they are pulled in the pulling direction by holding some lids. There was a problem that it was caught and could not be removed smoothly.

  It is considered that this problem is greatly influenced by the fact that the set hole 106 is a through-hole and the tube container 200 having a multiple shape connected with flexibility. That is, when a plurality of tube containers 200 are pulled out of the set hole 106 and pulled by holding a part of the lid part 200H of the tube container 200, a pulling action of receding straight along the insertion direction is activated at that part. However, it is considered that in the region away from it, it does not work as a pulling-out action that recedes straight along the insertion direction, but acts as a resistance action in a direction in which the tube body comes into strong contact with the set hole 106.

  This problem is not only in terms of workability that is difficult to remove, but also has a bad influence on the analysis result due to the dispersion and adhesion of the tube container 200 after completion of stirring / reaction to the edge of the hole due to the removal impact. There was a serious bug.

  Therefore, in the present invention, of course, in the case of a single tube made alone, a centrifuge rotor and its centrifuge rotor that can be easily set and removed with one hand even in a multi-tubular container. It aims at providing the centrifuge provided.

  In order to achieve the above object, a centrifuge rotor according to claim 1 is attached to a rotating shaft that rotates at a high speed, and includes a horizontal part and a rotating body that is bent upward from the horizontal part, and Formed along the edge of the bent part of the rotating body, the bottom of the tube container that is formed in a single or multiple tube container with the lid on the inside and the bottom of the tube container on the outside is open bottomed It comprises a groove and a restricting means that contacts the tube container inserted to the bottom of the bottomed groove and restricts the upward movement of the tube body of the tube container.

  According to the first aspect, since the bottomed groove for setting the tube container is open at the top, it can be set quickly and easily by dropping and inserting the tube container toward the groove bottom from above. In addition, the tube container is restricted from moving upward by the restricting means, and the set state is secured. Further, by lifting the container at the bottom of the groove upward, it can be easily and smoothly removed, which is very preferable in terms of work. Moreover, when the tube container is removed, the removal impact as before is eliminated and a good analysis result is obtained.

The centrifuge rotor according to claim 2, wherein the restricting means is disposed opposite to the inside of the bent portion of the rotating body, and the tube body is horizontally inserted to the bottom of the bottomed groove. It is characterized by being a pressing plate that comes into contact with the lid portion on the vertical surface.

According to claim 2, since the tube body is placed in a set state inserted horizontally with respect to the bottomed groove, the centrifugal action along the horizontal axis acts at the time of high-speed rotation, so that the tube body may come out of the bottomed groove. In addition, it is possible to ensure a reliable and stable holding of the tube container in combination with the planar contact between the upper surface of the lid portion and the vertical surface of the pressing plate , which acts as a holding action.

The centrifuge rotor according to claim 3, wherein the pressing plate is formed higher than the bent portion.

According to claim 3, when setting the tube container, in FIG. 4, the abutting an upper surface of the lid portion of the vertical face of the holding plate of the above bent portion sites as indicated by the two-dot chain line, it along a vertical plane By lowering, the pressing plate serves as a guide, and the tube container can be inserted and set into the bottomed groove easily and easily.

The centrifuge rotor according to a fourth aspect is characterized in that the presser plate is formed of a spring plate material that constantly exerts an urging action toward the bent portion.

According to the fourth aspect, the tube container is ensured to be held more securely by the urging action of the pressing plate .

6. The centrifuge rotor according to claim 5, wherein the restricting means is attached to the rotating body and presses the tube container inserted up to the bottom of the bottomed groove from above to restrain the movement of the tube main body. It is a tube pressing member that is rotatable to a primary position and a secondary position that releases the pressing away from the tube main body.

According to the fifth aspect, by setting the tube pressing member to the primary position, the tube container set in the bottomed groove is pressed from above, and the upward movement is reliably restrained. In addition, by setting the tube pressing member to the secondary position, it is possible to quickly and easily perform the setting and removing operation of the tube container with respect to the bottomed groove.

  A centrifuge according to a sixth aspect includes the centrifuge rotor according to any one of the first to fifth aspects in a centrifuge body.

  According to claim 6, in the case of a single tube container made, of course, even if it is a multiple tube container, it is easy to securely hold and remove the bottomed groove, and workability is improved. Improvement can be achieved. Also, the removal impact that adversely affects the analysis result can be reduced.

  According to the present invention, it is possible to improve the mounting workability and the removal workability of the tube container with respect to the centrifuge rotor. In addition, it is possible to greatly reduce the removal impact, which is considered to have an adverse effect on the analysis result, and a good analysis result can be obtained.

It is a perspective view which shows 1st Embodiment of the centrifuge provided with the centrifuge rotor of this invention. It is a perspective view which shows the example of a shape of a multiple tube container. It is a perspective view which expands and shows the rotary body shown in FIG. 1, and a control means. FIG. 4 is a side view of the rotating body and the regulating means shown in FIG. 3. It is a figure which shows the example of an operation | movement flow. It is a perspective view which shows the rotary body and control means of 2nd Embodiment of this invention. It is a side view of 2nd Embodiment shown in FIG. It is the top view which looked at 2nd Embodiment shown in FIG. 7 from the V direction. It is a figure which shows a prior art example.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a perspective view showing a first embodiment of a centrifuge provided with a centrifuge rotor of the present invention.

  A centrifuge 1 shown in FIG. 1 has a centrifuge body 2 and a circular opening / closing lid 3. The centrifuge body 2 has a circular opening 2A at the top, and a centrifuge rotor 2R is rotatably arranged in the internal space of the opening 2A. The rotating body 10 constituting the centrifuge rotor 2R is attached to the rotating shaft 4 of the centrifuge rotor 2R. The rotation shaft 4 is rotationally controlled by a motor (not shown in FIG. 1) so as to perform high-speed rotation necessary for stirring the sample and the specimen. The rotating body 10 is provided with a restricting means 45 for restricting the jumping out of a tube container, which will be described later, during rotation.

  As shown in FIG. 1, on the front side of the centrifuge main body 2, an operation panel 5 is inclined, and the operation panel 5 is provided with a start button 5A and a stop button 5B. A switch 6 is provided on the upper surface of the centrifuge body 2. The opening / closing lid 3 is provided with a protrusion 3 </ b> A at a position corresponding to the switch 6. As a result, when the opening / closing lid 3 closes the opening 2A of the centrifuge body 2, the projection 3A pushes the switch 6, whereby a signal is sent from the switch 6 to the control unit (not shown in FIG. 1). When the button 5A is pressed, it can be started. Therefore, the protrusion 3A and the switch 6 constitute a safety device that cannot start the operation of the centrifuge 1 unless the opening / closing lid 3 is closed.

  Here, before explaining an example of the structure of the centrifuge rotor 2R, an example of the shape of a multiple tube container 50 for containing a specimen will be explained with reference to FIG.

  FIG. 2 shows an example of the shape of a multiple tube container 50. As shown in FIG. 2, the tube container 50 is a tube container with a lid for performing reaction or detection of a target substance in the sample, for example, by stirring the sample and the reagent. The multiple tube container 50 includes a cylindrical tube body 52 having a tapered bottom 51, an upper opening 53 of the tube body 52, and a lid that detachably closes the upper opening 53. 54 and a planar contact portion 59.

  The planar contact portion 59 is continuously formed so as to extend from the hinge 55 and the connecting portion 56. The lid portion 54 is attached by a flexible hinge 55 extending from the tube main body 52 so that the upper opening 53 can be opened and closed. In the example shown in FIG. 2, for example, eight tube main bodies 52 are connected and connected in series by a connecting portion 56 of the planar contact portion 59.

  In the tube container 50, a reagent for performing a reaction analysis or a detection analysis at the time of contact with the sample is provided in advance. There is a type provided on the peripheral surface or the bottom 51 of the tube main body 52. In the embodiment of the present invention, the reagent is provided, for example, inside the lid portion 54.

  Next, referring to FIGS. 3 and 4, structural examples of the above-described centrifuge rotor 2R will be sequentially described.

  FIG. 3 is an enlarged perspective view showing the centrifuge rotor 2R shown in FIG. 1, and FIG. 4 is a side view of the centrifuge rotor 2R shown in FIG.

  As shown in FIGS. 3 and 4, the centrifuge rotor 2 </ b> R is made of, for example, a metal plate and is attached to the upper end portion of the rotating shaft 4 that rotates at high speed. The motor 8 is driven by a control signal from a control unit 9 in which a step program based on FIG. 5 is incorporated. By driving the motor 8, for example, the rotation axis can be rotated at high speed around the rotation center axis CL, and can be rotated by a predetermined angle in the clockwise and counterclockwise directions around the rotation center axis CL. It has become.

  As shown in FIGS. 3 and 4, the rotating body 10 includes a horizontal portion 11, a first bent portion 12 and a second bent portion 13 which are bent upward from the horizontal portion 11 and arranged to face each other. Become. As shown in FIG. 4, the horizontal part 11 is a rectangular flat part, the first bent part 12 rises vertically from one end side of the horizontal part 11, and the second bent part 13 is horizontal. It rises at 90 degrees from the other end side of the part 11.

  A plurality of bottomed grooves 14 are formed along the end edge portion 16 at the end edge portion 16 of the first bent portion 12 as one side. These bottomed grooves 14 are formed at regular intervals along the edge 16 and the top of each bottomed groove 14 is open. Moreover, the bending guide portion 15 forming the bottomed groove 14 is inclined outward at an angle θ as shown in FIG. That is, the forming direction S2 of the bending guide portion 15 is inclined at an angle θ with respect to the forming direction (vertical direction) S1 of the first bending portion 12. In this way, the bending guide portion 15 has a shape in which the insertion opening from above is widened by an angle θ by going obliquely upward and outward.

  As shown in FIG. 4, the plurality of bottomed grooves 14 in the end edge portion 16 of the first bent portion 12 has the lid portion 54 of the tube container 50 formed in a single or multiple configuration as the inside, and the tube container. In order to set the bottom 51 of the 50 as the outside, a shape with an open top is adopted.

  Similarly, a plurality of bottomed grooves 14 are formed along the end edge portion 16 at the end edge portion 16 of the second bent portion 13 serving as the other side. These bottomed grooves 14 are formed at regular intervals along the edge 16 and the top of each bottomed groove 14 is open. Moreover, the bending guide portion 15 forming the bottomed groove 14 is inclined outward at an angle θ as shown in FIG. That is, the forming direction S2 of the bending guide portion 15 is inclined at an angle θ with respect to the forming direction (vertical direction) S1 of the second bending portion 13. In this way, the bending guide portion 15 is formed so as to be obliquely upper and outward.

As shown in FIG. 4, the plurality of bottomed grooves 14 in the end edge portion 16 of the second bent portion 13 are formed with the lid portion 54 of the tube container 50 formed in a single or multiple manner as the inside, and the tube container. In order to set the bottom 51 of the 50 as the outside, a shape with an open top is adopted. The depth A of each bottomed groove 14 shown in FIG. 3 is the same as the outer diameter A of the tube main body 52 of the tube container 50 shown in FIG.

  Next, referring to FIGS. 3 and 4, a structural example of the restricting means 45 will be described.

The regulating means 45 shown in FIGS. 3 and 4 is disposed inside the rotating body 10 so as to face the rotating body 10. The restricting means 45 includes a flat portion 41 and a first upright portion 42 disposed to face the flat portion 41.
If has a retainer plate 40 and a second upright portion 43. The first upright portion 42 is formed by vertically rising from one end portion of the flat portion 41, and the second upright portion 43 is vertically raised from the other end portion of the flat portion 41 (90 degrees). Is formed. The flat portion 41, the first upright portion 42, and the second upright portion 43 are all formed in a rectangular shape.

As shown in FIG. 4, the formation height H <b> 1 of the first upright portion 42 and the second upright portion 43 of the pressing plate 40 is the same as the formation of the first bent portion 12 and the second bent portion 13 of the rotating body 10. It is set larger than the height H2.

As shown in FIG. 4, the first upright portion 42 of the presser plate 40, to the inside of the first bent portion 12 of the rotor 10, in parallel to oppose each other at a distance D, the pressing plate The 40 second upright portions 43 are disposed in parallel to face the inside of the second bent portion 13 of the rotating body 10 with a distance D therebetween.

The distance D is such that the planar contact portion 59 of the lid portion 54 of the tube container 50 is connected to the first upright portion 42.
The size is such that it can be sandwiched between the pressing plate 44 and the inner wall portion of the first bent portion 12 and between the second standing portion 43 and the inner wall portion of the second bent portion 13. As a result, when the presser plate 40 is inserted downward so that the tube main body 52 is horizontal until the bottom of the bottomed groove 14, the upper surface of the lid portion 54 of the tube container 50 is the first It is in planar contact with the vertical surface outside the upright portion 42 and is in planar contact with the vertical surface outside the second upright portion 43. Thereby, as shown in FIG. 4, the pressing plate 40 can reliably restrain the tube container 50 to the bottom of the bottomed groove 14.

As already described, the formation height H1 of the first and second upright portions 42 and 43 of the pressing plate 40 shown in FIG. 4 is the formation height of the first bent portion 12 and the second bent portion 13. It is higher than H2. As a result, the first and second upright portions 42 and 43 where the difference in height between the formation heights H1 and H2 is generated abuts the upper surface of the lid portion 54 as shown by the two-dot chain line in FIG. When the tube container 50 is lowered as it is, it becomes a guide for insertion downward, and the tube container 50 can be easily inserted to the bottom of the bottomed groove 14. It also serves as a guide when removing the lid portion 54 of the tube container 50 upward.

In addition, the formation direction S2 of the bending guide portion 15 is inclined at an angle θ with respect to the formation direction (vertical direction) S1 of the first bending portion 12 and the formation direction (vertical direction) of the second bending portion 13 ) S
1, the forming direction S2 of the bending guide portion 15 is inclined at an angle θ, so that the insertion opening is widened, and the operation of inserting the tube container 50 to the bottom of the bottomed groove 14 can be easily performed.
As described above, the bending guide portion 15 of the first bending portion 12 has a function of guiding the planar contact portion 59 shown in FIG. 2 between the first bending portion 12 and the first standing portion 42. Second bent portion 13
The bending guide portion 15 has a function of guiding the planar contact portion 59 shown in FIG. 2 between the second bending portion 13 and the second upright portion 43. The presser plate 40 is formed of a spring plate material that always works toward the first bent portion 12 and the second bent portion 13. Thereby, the pressing plate 40 has a function of holding the tube container 50 more securely by using the biasing action.

  Next, the usage example of the centrifuge 1 mentioned above is demonstrated.

  As shown in FIG. 4, the lid 52 and the planar contact portion 59 of each tube body 52 of the tube container 50 shown in FIG. 2 are arranged between the first standing portion 42 and the first bent portion 12, and the second Between the upright portion 43 and the second bent portion 13. That is, the bending guide portion 15 of the first bent portion 12 guides the planar contact portion 59 shown in FIG. 2 between the first bent portion 12 and the first upright portion 42, and the second The bending guide portion 15 of the bending portion 13 can guide the planar contact portion 59 shown in FIG. 2 between the second bending portion 13 and the second standing portion 43.

  The planar contact portion 59 of each tube container 50 is in planar contact with the inner wall surfaces of the first bent portion 12 and the second bent portion 13 rising vertically, so that the tube main body 52 of each tube container 50 is in contact with each other. This axial direction can be maintained in a horizontal state along the horizontal axis HL. As shown in FIG. 4, in a state where each tube container 50 is held in a horizontal state, the hinge 55 of the lid portion 54 is positioned on the upper side.

  As a result, the centrifugal action F along the horizontal axis HL acts on the tube main body 52 during high-speed rotation, and no upward action is generated in which the tube main body 52 is detached from the bottomed groove 14, and the first and second upright portions 42 are generated. , 43 together with the lid portion 54 of the tube container 50 that is in planar contact with each other, it is possible to ensure the holding of the tube body 52 reliably and stably.

  FIG. 5 is an operation flow showing an operation example of the centrifuge 1 including the centrifuge rotor according to the first embodiment of the present invention.

  First, as a preparatory step, a reagent is provided in the tube container 50 in advance, and a biological sample collected from the patient (the patient's sputum in the case of tuberculosis or the like) is placed in the tube container 50 using a pipette or the like. After that, the lid 54 is closed and the tube container 50 is sealed.

Then, before setting the tube container 50 shown in FIG. 2 to the rotating body (rotor) 10, the tube container 50 is shaken by hand and the reagent and the biological sample are preliminarily stirred. Next, the lid portion 54 of the pre-stirred tube container 50 is set on the centrifuge rotor 2R with the bottom portion 51 as the outside and the bottom portion 51 as the outside. At the time of this setting, for example, the upper surface of the lid portion 54 is abutted and lowered against the vertical surface of the first upright portion 42 , so that it can be smoothly coupled with the bending guide portion 15 of the first bending portion 12 opened outward. Inserted into the bottom of the bottomed groove. Next, when the user presses the start button 5A shown in FIG. 1, the operation starts based on the program of the control unit 9 shown in FIG. In step S1, the centrifuge rotor 2R rotates at a low speed (for example, about 3 rpm), for example, for 90 seconds. Thereby, the reaction generation in the pre-stirred tube container 50 is supported.

  In Step S2, the centrifuge rotor 2R rotates for 9 seconds in a clockwise and counterclockwise direction, for example, at a speed corresponding to 2000 rpm within an angle setting range of 90 degrees. As a result, the reagent in the tube container 50 and the sample are stirred and brought into reaction contact. At this time, since the tube container 50 is held horizontally, the reaction contact between the reagent and the sample is ensured.

  Next, in step S3, the centrifuge rotor 2R rotates at a high speed in the clockwise direction, for example, for 6 seconds, for example, at a speed corresponding to 2000 rpm. In step S2, since the reagent and the biological sample are dispersed and attached to the inner wall surface of the tube container 50, in step S3, the reaction sample is placed in the tube container 50 by centrifugal force when the tube container 50 is rotated at a high speed. At the bottom of the can be collected.

  Subsequently, the operations in steps S2 and S3 are repeated in steps S4 and S5. Since the buzzer (not shown) sounds after the operation is completed (step S6), the user presses the stop button 5B shown in FIG. 1 to stop the buzzer from sounding in step S7. After the buzzer is stopped, the tube container 50 is lifted upward against the surface contact with the upper surface of the lid portion 54 and, for example, the vertical surface of the first upright portion 42. The tube container 50 can be smoothly removed from the bottomed groove 14 while avoiding the removal impact.

(Second Embodiment)
Next, a second embodiment of the present invention will be described based on FIG. 6, FIG. 7, and FIG.

  FIG. 6 is a perspective view showing a centrifuge rotor according to a second embodiment of the present invention. FIG. 7 is a side view showing the centrifuge rotor of the second embodiment shown in FIG. FIG. 8 is a plan view of the centrifuge rotor shown in FIG. 7 viewed from the V direction.

The tube pressing member 70 serving as the rotating body 10A and the regulating means 45 of the centrifuge rotor 2R is made of a metal plate. The rotating body 10A is made the same as the rotating body 10 of the first embodiment. Specifically, although it repeats, it consists of 11 A of horizontal parts, the 1st bending part 12A bent upwards from this horizontal part 11A, and opposingly arranged, and the 2nd bending part 13A. The horizontal portion 11A is a rectangular flat portion, the first bent portion 12A rises vertically from one end portion side of the horizontal portion 11A, and the second bent portion 13A is the other end portion side of the horizontal portion 11A. Standing vertically from.

  A plurality of bottomed grooves 14 are formed in the end edge portion 16A of the first bent portion 12A along the end edge portion 16A of the first bent portion 12A. These bottomed grooves 14 are formed at regular intervals along the edge portion 16A, and the top of each bottomed groove 14 is open. The plurality of bottomed grooves 14 of the end edge portion 16A of the first bent portion 12A has the lid portion 54 of the tube container 50 formed in a single or multiple manner as the inner side and the bottom portion 51 of the tube container 50 as the outer side. In order to set, a shape with an open top is adopted.

  Similarly, a plurality of bottomed grooves 14 are formed in the end edge portion 16A of the second bent portion 13A along the end edge portion 16A of the second bent portion 13A. These bottomed grooves 14 are formed at regular intervals along the edge portion 16A, and the top of each bottomed groove 14 is open. The plurality of bottomed grooves 14 of the end edge portion 16A of the second bent portion 13A has the lid portion 54 of the tube container 50 formed in a single or multiple configuration as the inside, and the bottom portion 51 of the tube container 50 as the outside. In order to set, a shape with an open top is adopted. Further, the bending guide portion 15 forming the bottomed groove 14 is inclined outward at an angle θ as in the case of the first embodiment shown in FIG. In the case of this embodiment, the bending guide portion 15 may be vertical.

The tube pressing member 70 shown in FIGS. 6 and 8 is a long plate-shaped member or rod-shaped member. On the other hand, the length of the tube pressing member 70 is the first bent portion 12A and the second bent portion. It is almost the same as the length of 13A. One end portion 71 of the tube pressing member 70 is respectively provided to the support end portion 12T of the first bent portion 12A of the rotating body 10A and the support end portion 13T of the second bent portion 13A by using the rotation shaft portion 75. It is attached. Thereby, it can rotate to R1 direction and R2 direction.

The other end 72 of the tube pressing member 70 is substantially L-shaped, and the other end 72 is formed downward. The other end portion 72 of the tube pressing member 70 can be fixed by fitting into the attachment end portion 12S of the first bent portion 12A of the rotating body 10A and the end portion 13S of the second bent portion 13A. it can.

Thereby, the tube pressing member 70 restricts the tube container 50 from popping out. That is, the tube holding member 70 by rotating in the R1 direction, as shown in FIG. 7, the tube body 52 of the tubular container 50 in a state of being inserted to the groove bottom of the bottom-equipped groove 14 and pressed from above the tube It can be held at the primary position P <b> 1 that restrains the movement of the main body 52. That is, the tube holding member 70, by lowering, the lower surface of the tube pressing member 70 comes into contact with the outer diameter portion of the tube body 52, it is possible to fix the tube body 52. Therefore, the tube container 50 can be reliably restrained to the groove bottom of the bottomed groove 14.

In addition, as shown in FIG. 6, the tube pressing member 70 can be lifted in the R2 direction to move away from the tube main body 52 and to the secondary position P2 where the pressed state is released.

  The present invention has been described with reference to the embodiments. However, each embodiment is an example, and the scope of the invention described in the claims can be variously modified without departing from the scope of the invention. .

  Moreover, although the example which uses 8 tube containers is shown as an example, it is good also as a specification structure which can respond also to things other than 8 tubes.

DESCRIPTION OF SYMBOLS 1 Centrifuge 2 Centrifuge body 2A Opening part 2R Centrifuge rotor 3 Opening / closing lid 4 Rotating shaft 10 Rotating body 11 Rotating body horizontal part 12, 13 Rotating body bending part 14 Bottomed groove 15 Bending guide part 45 Restricting means 50 Tube Container 51 Tube container bottom 52 Tube body 54 Tube container lid 70 Tube holding member

Claims (6)

A rotating body that is attached to a rotating shaft that rotates at a high speed and includes a horizontal portion and a bent portion that is bent upward from the horizontal portion;
Formed along the edge of the bent part of the rotating body, the upper part of the tube container formed in a single or multiple tube container with the lid part inside and the bottom part of the tube container set outside is open. The bottom groove,
A centrifuge rotor, comprising: a restricting means that contacts the tube container inserted to the bottom of the bottomed groove and restricts the upward movement of the tube body of the tube container. The restricting means is disposed opposite to the inner side of the bent portion of the rotating body, and contacts the lid portion of the tube container in which the tube main body is horizontally inserted to the groove bottom of the bottomed groove on a vertical surface. 2. The centrifuge rotor according to claim 1, wherein the centrifuge rotor is a pressing plate . The centrifuge rotor according to claim 2, wherein the pressing plate is formed higher than the bent portion. The centrifuge rotor according to claim 2 or 3, wherein the pressing plate is formed of a spring plate material that constantly exerts an urging action toward the bent portion. The regulating means is attached to the rotating body and presses the tube container inserted up to the groove bottom of the bottomed groove from above to hold a primary position that restrains the movement of the tube body, and separates and holds the tube body from the tube body. 2. The centrifuge rotor according to claim 1, wherein the centrifuge rotor is a tube pressing member that is rotatable to a secondary position to be released.   A centrifuge comprising the centrifuge rotor according to any one of claims 1 to 5 in a centrifuge body.

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