Plasma centrifugal separator

Abstract

The utility model relates to the technical field of plasma separation, and discloses a plasma centrifugal separator which comprises a separator body, a disc is rotatably connected in a centrifugal groove, a test tube is inserted in a placing groove, and a limiting assembly comprises sliding rods which are symmetrically and fixedly connected to the two sides of the top of the placing groove through connecting seats. The exteriors of the two sets of sliding rods are slidably connected with the same sliding plate, the center of the bottom of the sliding plate is fixedly connected with a baffle, the anti-disengaging assembly comprises an arc-shaped fixed plate fixedly connected to one side of the bottom of the containing groove, and an arc-shaped movable plate is arranged on the other side of the bottom of the containing groove. The bottom of the disc is fixedly connected with telescopic rods in the circumferential direction at equal intervals through fixing seats, and the telescopic tail ends of the telescopic rods are fixedly connected with the arc-shaped movable plates on the same side. And the blood separation efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma separation, in particular to a plasma centrifugal separator. Background Art

[0002] Plasma separation is a medical procedure designed to separate specific bioactive molecules, such as proteins, drugs or other therapeutic agents, from a patient's blood, while retaining red blood cells and other formed elements. Plasma separation is caused by the need to extract specific bioactive molecules that are normally present in plasma, but do not include red blood cells and other formed elements. This treatment method can be used to treat a variety of diseases or regulate body states, such as immunoglobulin replacement therapy. Plasma separation usually requires the use of a specialized separator.

[0003] A plasma sample centrifuge device is disclosed in the Chinese utility model patent with the announcement number CN219985038U. The device can fix the centrifuge tube in use and the tube cover at the same time by arranging a turntable, a jack, a clamping block, a telescopic rod, a horizontal plate, a pressing block, a centrifuge tube and a tube cover, so that the tube cover can be sealed on the centrifuge tube, thereby preventing the centrifuge tube from falling off the turntable when the plasma sample is centrifuged, thereby improving the stability of the centrifuge tube during centrifugation. With respect to the above-mentioned related technologies, the inventor believes that there are the following defects:

[0004] When the device is actually used, each centrifuge tube needs to be fixed in turn before the separation operation can be performed, and after the centrifugal separation is completed, each centrifuge tube needs to be removed in turn, which is not only troublesome but also reduces the separation efficiency of blood. For this reason, we provide a plasma centrifuge. Utility Model Content

[0005] In order to solve the problem in the above background technology that each centrifuge tube needs to be fixed and removed in sequence before and after separation, which is not only troublesome but also reduces the separation efficiency of blood, the utility model provides a plasma centrifuge.

[0006] The utility model is implemented by the following technical scheme: a plasma centrifuge, comprising:

[0007] A separation body, wherein a centrifugal groove is provided on the separation body, a disc is rotatably connected inside the centrifugal groove, placement grooves are equidistantly provided on the disc in a circumferential direction, and a test tube is inserted inside the placement groove;

[0008] A limiting component, the limiting component includes sliding rods symmetrically fixedly connected to the top of the placement groove on both sides through a connecting seat, the outsides of the two groups of sliding rods are slidably connected to the same slide plate, the bottom center of the slide plate is fixedly connected to a baffle, and a spring is sleeved on the outside of one side of the sliding rod;

[0009] The anti-slip assembly includes an arc-shaped fixed plate fixedly connected to one side of the bottom of the placement groove, an arc-shaped movable plate is arranged on the other side of the bottom of the placement groove, a telescopic rod is fixedly connected to the bottom of the disc equidistantly in the circumferential direction through a fixed seat, and the telescopic end of the telescopic rod is fixedly connected to the arc-shaped movable plate on the same side, and a spring 2 is arranged on the outer sleeve of the telescopic rod.

[0010] As a further improvement of the above solution, a sealing cover is provided outside the tube mouth of the test tube.

[0011] As a further improvement of the above solution, two ends of the spring 1 are fixedly connected to the connecting seat and the slide plate respectively.

[0012] As a further improvement of the above solution, the inner diameters of the arc-shaped fixed plate and the arc-shaped movable plate are consistent with the radius of the test tube.

[0013] As a further improvement of the above solution, anti-slip pads are provided on the opposite surfaces of the arc-shaped fixed plate and the arc-shaped movable plate.

[0014] As a further improvement of the above solution, two ends of the second spring are fixedly connected to the fixing seat and the arc-shaped movable plate respectively.

[0015] As a further improvement of the above solution, the diameter of the placement groove is consistent with the diameter of the test tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model separates the plasma in the test tube by starting the separation body to control the rapid rotation of the disc. The centrifugal force generated by the rapid rotation of the disc is used to enable the slide plate to slide outside the slide rod and stretch the spring 1, thereby driving the baffle plate to move toward the edge of the disc, and then shielding the top of the test tube to prevent it from escaping from the placement groove when the disc rotates. When the disc stops rotating, the rebound effect of the spring 1 is used to automatically reset the baffle plate, without the need for the operator to manually fix and disassemble each test tube in turn, thereby effectively improving the efficiency of plasma separation and having strong practicality.

[0018] 2. The utility model utilizes the centrifugal force generated by the rapid rotation of the disc, and cooperates with the telescopic effect of the telescopic rod and the elastic effect of the second spring, so that it can also drive the arc-shaped movable plate to move toward the edge of the disc. When the arc-shaped movable plate contacts the arc-shaped fixed plate, the test tube body can be wrapped. At this time, the anti-skid pad will contact the test tube body. Due to the anti-skid effect of the anti-skid pad and the increase in the contact area between the test tube and the device, the friction between the test tube and the device will also increase, thereby further preventing the test tube from being separated from the placement slot, and further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the restriction component of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the anti-slip assembly of the utility model.

[0022] Description of main symbols:

[0023] 1. Separation body; 2. Disc; 3. Test tube; 101. Slide bar; 102. Slide plate; 103. Baffle; 104. Spring 1; 201. Arc-shaped fixed plate; 202. Arc-shaped movable plate; 203. Telescopic rod; 204. Spring 2; 205. Anti-slip pad. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example

[0025] Please combine Figure 1-3 A plasma centrifuge according to this embodiment comprises:

[0026] A separation body 1 is provided with a centrifugal groove, a disc 2 is rotatably connected inside the centrifugal groove, placement grooves are equidistantly provided on the disc 2, a test tube 3 is inserted inside the placement groove, and a sealing cover is added to the outside of the tube mouth of the test tube 3 to prevent blood from being thrown when rotating at a high speed;

[0027] The limiting component includes slide bars 101 symmetrically fixedly connected to the top of the placement slot on both sides through a connecting seat, the two sets of slide bars 101 are externally slidably connected to the same slide plate 102, the bottom center of the slide plate 102 is fixedly connected to a baffle 103, and a spring 104 is sleeved on the outside of one side of the slide bar 101, and the two ends of the spring 104 are respectively fixedly connected to the connecting seat and the slide plate 102;

[0028] The anti-slip component includes an arc-shaped fixed plate 201 fixedly connected to one side of the bottom of the placement groove, and an arc-shaped movable plate 202 is arranged on the other side of the bottom of the placement groove. A telescopic rod 203 is fixedly connected to the bottom of the disc 2 through a fixed seat in an equidistant circumferential direction, and the telescopic end of the telescopic rod 203 is fixedly connected to the arc-shaped movable plate 202 on the same side. The telescopic rod 203 is a prior art, which is composed of a sleeve and a sleeve rod with one end limited and movably connected to the inside of the sleeve. A spring 204 is sleeved on the outside of the telescopic rod 203, and the two ends of the spring 204 are fixedly connected to the fixed seat and the arc-shaped movable plate 202 respectively. The inner diameters of the arc-shaped fixed plate 201 and the arc-shaped movable plate 202 are consistent with the radius of the test tube 3. The opposite surfaces of the arc-shaped fixed plate 201 and the arc-shaped movable plate 202 are provided with anti-slip pads 205, which can wrap the body of the test tube 3 to increase the friction.

[0029] The implementation principle of a plasma centrifuge in the embodiment of the present application is as follows: first, the test tubes 3 are placed into the placement slot one by one, and then the separation body 1 is started to control the disc 2 to rotate rapidly to separate the plasma in the test tube 3. The centrifugal force generated by the rapid rotation of the disc 2 allows the slide plate 102 to slide outside the slide bar 101 and stretch the spring 104, thereby driving the baffle 103 to move toward the edge of the disc 2, and then the top of the test tube 3 can be blocked to prevent it from leaving the placement slot when the disc 2 rotates. When the slide plate 102 slides to the other end of the slide bar 101, the baffle 103 is just at the top of the sealing cover of the test tube 3. When the disc 2 stops rotating, the spring 104 is used to rebound so that the baffle 103 can automatically reset, without the operator manually fixing and disassembling each test tube 3 in turn, effectively improving the blood The efficiency of pulp separation is improved. At the same time, the centrifugal force generated by the rapid rotation of the disc 2 is utilized, and the telescopic effect of the telescopic rod 203 and the elastic effect of the second spring 204 are cooperated to drive the arc-shaped movable plate 202 to move toward the edge of the disc 2. When the arc-shaped movable plate 202 contacts the arc-shaped fixed plate 201, the test tube 3 can be wrapped. At this time, the anti-skid pad 205 will contact the test tube 3. Due to the anti-skid effect of the anti-skid pad 205 and the increase in the contact area between the test tube 3 and the device, the friction between the test tube 3 and the device will also increase, thereby further preventing the test tube 3 from being separated from the placement slot. When the disc 2 stops rotating, the telescopic effect of the telescopic rod 203 and the rebound effect of the second spring 204 will automatically reset the arc-shaped movable plate 202, and finally the test tube 3 can be taken out of the placement slot. Example

[0030] The present embodiment is further improved on the basis of the embodiment 1 in that the diameter of the placement groove is consistent with the diameter of the test tube 3, which can prevent the test tube 3 from shaking in the placement groove during rotation.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A plasma centrifuge, characterized in that: include: A separation body (1), wherein the separation body (1) is provided with a centrifugal groove, a disc (2) is rotatably connected inside the centrifugal groove, placement grooves are equidistantly provided on the disc (2), and a test tube (3) is inserted inside the placement groove; A limiting component, the limiting component comprising sliding rods (101) symmetrically fixedly connected to both sides of the top of the placement groove through a connecting seat, the outsides of the two groups of sliding rods (101) are slidably connected to the same slide plate (102), the bottom center of the slide plate (102) is fixedly connected to a baffle (103), and one side of the sliding rod (101) is externally sleeved with a spring 1 (104); An anti-slip assembly comprises an arc-shaped fixed plate (201) fixedly connected to one side of the bottom of a placement groove, an arc-shaped movable plate (202) being arranged at the other side of the bottom of the placement groove, a telescopic rod (203) being fixedly connected to the bottom of the disc (2) at equal intervals in the circumferential direction through a fixing seat, and a telescopic end of the telescopic rod (203) being fixedly connected to the arc-shaped movable plate (202) on the same side, and a second spring (204) being sleeved on the outside of the telescopic rod (203).

2. A plasma centrifuge as claimed in claim 1, characterized in that: A sealing cover is provided outside the tube mouth of the test tube (3).

3. A plasma centrifuge as claimed in claim 1, characterized in that: The two ends of the spring 1 (104) are respectively fixedly connected to the connecting seat and the slide plate (102).

4. A plasma centrifuge as claimed in claim 1, characterized in that: The inner diameters of the arc-shaped fixed plate (201) and the arc-shaped movable plate (202) are both consistent with the radius of the test tube (3).

5. A plasma centrifuge as claimed in claim 1, characterized in that: Anti-slip pads (205) are provided on the opposing surfaces of the arc-shaped fixed plate (201) and the arc-shaped movable plate (202).

6. A plasma centrifuge as claimed in claim 1, characterized in that: The two ends of the second spring (204) are respectively fixedly connected to the fixing seat and the arc-shaped movable plate (202).

7. A plasma centrifuge as claimed in claim 1, characterized in that: The diameter of the placement groove is consistent with the diameter of the test tube (3).

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