CN114029175A

CN114029175A - Centrifugal machine for PRP extraction

Info

Publication number: CN114029175A
Application number: CN202111464524.2A
Authority: CN
Inventors: 李罗浩; 邱继海; 邓欣欣; 李鉴墨
Original assignee: Kangxi Biomedical Shenzhen Co ltd
Current assignee: Kangxi Biomedical Shenzhen Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-02-11

Abstract

The invention relates to a centrifugal machine for PRP extraction, which comprises a casing, a motor, a control mainboard and a rotor, wherein the casing is internally provided with a centrifugal cavity; the centrifugal tube adapter is detachably pivoted with a plurality of injectors in a detachable and pivotal mode, the centrifugal tube adapters are radially symmetrically arranged on the edge of the mounting rack at equal intervals along the circumferential direction of the mounting rack, the distance between two symmetrical centrifugal tube adapters is greater than the length of an injector core rod matched with the centrifugal tube adapter, and the distance from the pivoting position of the centrifugal tube adapter and the mounting rack to the wall of a centrifugal cavity is greater than the length of an empty syringe barrel when the centrifugal tube adapter rotates to the horizontal position; the shell is also provided with a scanning device for controlling the starting of the motor. The invention is convenient to use, does not need to damage the injector, ensures that the product can not be reused due to the correlation between the scanning device and the motor start, reduces the risk of blood leakage, ensures the stability of PRP extraction and avoids the pollution of PRP.

Description

Centrifugal machine for PRP extraction

Technical Field

The invention relates to the field of medical instruments, in particular to a medical centrifugal machine for PRP extraction.

Background

Platelet Rich Plasma (PRP) is platelet rich plasma obtained by centrifuging whole blood of animals or humans. In the prior art, the PRP is extracted by taking blood with a syringe and performing centrifugation, but the prior method has the following defects: because the height of a centrifugal cavity of the existing medical centrifuge is limited, the syringe core rod is forcibly broken by a violent mode to realize centrifugation, blood enters the position of the syringe rubber plug and even overflows the rubber plug in the process, the blood is wasted, and the blood pollution is caused; the centrifugal tube of the existing centrifuge cannot be well matched with the size of an injector, and is mostly matched by manually modifying the centrifugal tube or the injector, so that the stable and accurate matching property is lacked, PRP extraction failure or poor extraction effect is easily caused, and the centrifugal tube or the injector is damaged in the centrifugation process, so that blood leakage is caused; finally, the shape and the size of the injectors of different products are different, but the operator does not consider the differences in the process of extracting the PRP, so that the extraction quality of the PRP is extremely unstable; the platelet-rich plasma extractor is a disposable sterile medical appliance, and an irregular operator can be repeatedly used, so that great potential safety hazards are caused to a user.

Disclosure of Invention

In view of the existing shortcomings, the invention provides a centrifuge for PRP extraction.

The technical scheme adopted by the invention for solving the technical problems is as follows: a centrifuge for PRP extraction comprises a machine shell, a motor, a control main board and a rotor, wherein a centrifugal cavity is formed in the machine shell; the depth of the centrifugal cavity is greater than the length of an injector for extracting blood, and an installation frame which rotates in the horizontal direction is fixedly sleeved on the rotor; the centrifugal tube adapters are detachably pivoted at the top of the mounting frame and can rotate up and down along the mounting frame in a limiting manner, the centrifugal tube adapters are arranged at the edge of the mounting frame in a radial symmetrical manner at equal intervals along the circumferential direction of the mounting frame, the distance between the two symmetrical centrifugal tube adapters is greater than the length of an injector core rod matched with the centrifugal tube adapter, and the distance between each centrifugal tube adapter and the wall of a centrifugal cavity from the pivoting position of the centrifugal tube adapter and the mounting frame when each centrifugal tube adapter rotates to the horizontal position is greater than the length of an empty syringe barrel; and the shell is also provided with a scanning device which is electrically connected with the control mainboard and can control the starting of the motor.

Preferably, the scanning device is connected with a cloud server in a communication manner.

Preferably, the centrifuge tube adapter is pivotally connected to the top of the mounting frame by a connector.

Preferably, the upper end of connecting piece is provided with the connecting piece through-hole of installation centrifuging tube adapter, install the sleeve pipe that matches not equidimension centrifuging tube adapter in the connecting piece through-hole, the centrifuging tube adapter is installed in the sleeve pipe.

Preferably, the connecting piece is of an L-shaped sheet structure, and a mounting frame through hole into which the lower end of the matching connecting piece is inserted is formed in the mounting frame.

Preferably, the casing includes that inside sets up the inferior valve of holding cavity, lid establish the top cap on the inferior valve, the motor is installed on the inferior valve, the mounting bracket sets up in the holding cavity of inferior valve.

Preferably, a contact switch electrically connected with the control main board is arranged between the top cover and the lower shell.

Preferably, the lower shell is provided with an operation panel electrically connected with the control main board.

Preferably, the motor is arranged at the center of the bottom of the casing, and a rotating shaft of the motor penetrates through the casing and extends into the centrifugal cavity to be fixedly connected with the rotor.

Preferably, the housing is further provided with a vent hole.

The invention has the beneficial effects that: according to the invention, through setting the depth of the centrifugal cavity, the distance between the centrifugal tube adapters and the centrifugal cavity, the syringe for collecting blood can be completely placed in the centrifugal cavity for centrifugation, the use is convenient, the syringe is not required to be damaged, the blood is not polluted, meanwhile, through the centrifugal tube adapters and the detachable pin joint of the centrifugal tube adapters and the mounting frame, the syringe with the corresponding specification can be selected according to the requirement in use, the problem of unstable extraction quality or blood leakage caused by the difference of the shapes and the sizes of the syringes is avoided, and finally, through the correlation between the scanning device and the motor start, the uniqueness of the scanning device is determined by using the information on the scanning product, so that the product is prevented from being reused, and the safety of PRP extraction is ensured.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the present invention in an un-centrifuged state;

FIG. 2 is a schematic structural view of a state during centrifugation according to an embodiment of the present invention;

FIG. 3 is a block diagram of the mounting bracket, attachment member, centrifuge tube adapter of an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an embodiment of the present invention;

part names and serial numbers in the figure: 1-casing 10-centrifugal chamber 11-lower casing 12-top cover 13-injector 14-vent 2-motor 20-rotor 3-control mainboard 4-mounting rack 5-centrifuge tube adapter 6-scanning device 7-connecting piece 70-sleeve 8-contact switch 9-control panel

Detailed Description

To more clearly illustrate the objects, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention. In addition, directional terms used in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer to directions only as shown in the attached drawings, and are used for better and clearer explanation and understanding of the present invention, and do not indicate or imply orientation which the present invention must have, and thus, should not be construed as limiting the present invention.

The embodiment of the invention is shown in fig. 1 to 4, a centrifuge for PRP extraction includes a casing 1 having a centrifugal cavity 10 therein, a motor 2 and a control main board 3 mounted on the casing 1, and a rotor 20 driven by the motor 2, wherein the control main board 3 is electrically connected to the motor 2, the motor 2 and the control main board 3 are disposed at different positions of the casing 1, such as a side wall of the casing 1, a top or a bottom of the casing 1, according to the structure and use requirements of the casing 1, the control main board 3 controls the motor 2 to be turned on or off, the control main board 3 is provided with a corresponding processor to process and analyze received information, so as to control the operation of the motor 2, the motor 2 drives the rotor 20 to rotate for production and installation, the casing 1 includes a lower casing 11 having a containing cavity therein, and a top cover 12 covering the lower casing 11, the containing cavity on the lower shell 11 is realized by a groove on the lower shell 11, at this time, the lower shell 11 may be integrally formed, or may be formed by combining a bottom plate and four side walls, the top cover 12 may also be of the same structure as the lower shell 11 or of a flat plate type structure, after the top cover 12 is covered on the lower shell 11, the containing cavity of the lower shell 11 forms the centrifugal cavity 10 of the centrifuge, the top cover 12 is covered on the lower shell 11 by using a hinge joint between one end of the top cover and the lower shell 11, or of course, the top cover 12 may be connected by other connection methods, at this time, the top cover 12 may be an integrated component, or may be formed by hinging a plurality of components, and then is connected with the lower shell 11 at the outer ends of the plurality of components or the hinge joint of any two components, at this time, the motor 2 is correspondingly installed on the lower shell 11; the depth of the centrifugal cavity 10 is larger than the length of the injector 13 for extracting blood, so that the injector 13 is not higher than the centrifugal cavity 10 after being placed in the centrifugal cavity 10, and there is no need to break off the core rod of the injector 13 when in use, for example, the specification of the injector 13 in conventional use is 10ml, 20ml, 30ml and 50ml, which all have corresponding determined lengths, at this time, if only one injector with a certain specification is used singly, the depth of the centrifugal cavity 10 is correspondingly set to be larger than the length of the injector 13 without being higher than the centrifugal cavity 10, and in order to meet the requirement that a plurality of injectors 13 with different specifications can be used on the same centrifuge, the depth of the centrifugal cavity 10 is set to be larger than the length of the longest injector 13 in a plurality of different specifications, only the corresponding centrifugal tube adapter 5 needs to be replaced when the injector 13 is replaced, the rotor 20 is fixedly sleeved with a mounting frame 4 which rotates in the horizontal direction, at this time, the mounting frame 4 can be a turntable with a circular structure, the mounting frame 4 is circular and is driven to rotate by the motor 2 in the horizontal direction, or the mounting frame 4 is a support with a symmetrical extension arm structure, the support is fixedly sleeved on the rotor 20 at the symmetrical center of the support, then symmetrical extension arms are arranged in the radial direction, the outer edge of each extension arm is pivoted with a centrifugal tube adapter 5, for example, the extension arms are of a U-shaped structure in the horizontal direction, the open ends of the extension arms are pivoted with the centrifugal tube adapter 5, for example, the extension arms are provided with four structures which are symmetrical in a cross shape; at this moment, the output shaft of the motor 2 installed on the casing 1 can be directly and fixedly connected with the mounting frame 4, in this connection mode, it means that the output shaft of the motor 2 needs to be in the vertical direction when being installed, and at the same time, the output shaft of the motor and the mounting frame 4 can be in transmission connection, and the connection is realized through a corresponding connecting rod or other transmission structure, when the casing 1 is composed of a lower casing 11 and a top cover 12, the mounting frame 4 is arranged in the accommodating cavity of the lower casing 11, the motor 2 is arranged at the center of the bottom of the casing 1, the rotating shaft of the motor 2 penetrates through the casing 1 and extends into the centrifugal cavity 10 to be fixedly connected with the rotor 20, so that the mounting frame 4 is correspondingly positioned in the middle position of the centrifugal cavity 10, and the space of the centrifugal cavity 10 is fully utilized; the top of the mounting frame 4 is detachably pivoted with a plurality of centrifugal tube adapters 5 which can rotate up and down along the mounting frame 4 in a limiting manner and are used for mounting the syringes 13, namely the centrifugal tube adapters 5 are detachably connected to the top of the mounting frame 4 and are connected to the mounting frame 4 when in use and can be detached when not in use, the centrifugal tube adapters 5 matched with the syringes can be selected according to the syringes 13 in a detachable manner, so that the stability in the centrifugal process is ensured and the extraction effect is improved, the centrifugal tube adapters 5 can also rotate relative to the mounting frame 4 after being mounted on the mounting frame 4, therefore, after the syringes 13 are placed on the centrifugal tube adapters 5 in the centrifugal process, the syringes 13 are in a vertical state under the action of gravity, and the syringes 13 rotate to a horizontal state relative to the mounting frame 4 along with the centrifugal tube adapters 5 under the action of centrifugal force during the centrifugal process, the centrifugal tube adapters 5 are radially symmetrically arranged on the edge of the mounting frame 4 at equal intervals along the circumferential direction of the mounting frame 4, so that the stability during centrifugation is ensured, when the centrifugal tube adapters are used, the injector 13 is arranged on one side, the matched balance weight is arranged on the other side opposite to the injector 13, for example, 4, 6 or 8 balance weights are arranged, the distance between two symmetrical centrifugal tube adapters 5 is greater than the length of a core rod of the injector 13 matched with the centrifugal tube adapter 5, and the distance from the pin joint of each centrifugal tube adapter 5 and the mounting frame to the wall of the centrifugal cavity 10 when each centrifugal tube adapter 5 rotates to the horizontal position is greater than the length of an empty cylinder of the injector 13, so that when the injector 13 is in the horizontal state during centrifugation, the core rod of the injector 13 extends to the centrifugal tube adapter 5 on the other side corresponding to the injector 13, the empty cylinder of the injector 13 extends to the wall of the centrifugal cavity 10, and the distance between the two symmetrical centrifugal tube adapters 5 is greater than the length of the core rod of the injector 13, the syringe 13 can be rotated to a horizontal position in the centrifugation process, and the centrifugation quality is ensured; the shell 1 is also provided with a scanning device 6 which is electrically connected with the control mainboard 3 and can control the starting of the motor 2, the scanning device 6 can adopt the prior corresponding scanning equipment, the scanning device 6 scans the corresponding product information on the injector 13 to be installed in the centrifuge, such as scanning bar codes, two-dimensional codes and the like, so as to determine the identity information, when the product is determined not to be repeatedly used, the information is transmitted to the control mainboard 3, the control mainboard 3 controls the motor 2 to be started or not to be started after receiving the information, the scanning device 6 forms a program starting switch, namely when the scanning device 6 determines that the product corresponding to the injector 13 is not repeatedly used, the control mainboard 3 enables the circuit of the control motor 2 to be in a connected state, then the motor is started through the switch of the control motor 2, otherwise, the circuit is in a disconnected state, the motor is not started even if the switch for controlling the motor 2 is started to be in an on state, the motor 2 is started to form a double-start mechanism, the motor 2 can be operated only when the motor and the injector are simultaneously in the on state, the pre-stored information is used for comparing with the scanned information for determining the product identity information corresponding to the used injector 13, the pre-stored information can be a certain number of product codes pre-stored in the centrifuge and one-to-one corresponding to the product codes, when the centrifuge scans the codes and is identified as the internal pre-stored codes, the centrifuge is started, otherwise, the centrifuge is not started; and because the information of prestoring can be a huge order of magnitude, just can be with its storage in the high in the clouds server, scanning device 6 communication connection has the high in the clouds server promptly, sets up communication connection unit on scanning device 6, has just made things convenient for the use, also does benefit to the sharing of information, has stopped the reuse of syringe, and its communication connection then can adopt wired or wireless communication connection. Therefore, by setting the depth of the centrifugal cavity 10, the distance between the centrifugal tube adapters 5 and the centrifugal cavity 10, the syringe 13 for collecting blood can be completely placed in the centrifugal cavity 10 for centrifugation, the use is convenient, the syringe 13 does not need to be damaged, the blood cannot be polluted, meanwhile, the syringe 13 with the corresponding specification can be selected as required in use through the centrifugal tube adapters 5 and the detachable pin joint with the mounting frame 4, the problems of unstable extraction quality or blood leakage and the like caused by the shape and the size difference of the syringe 13 are avoided, finally, the uniqueness of the used syringe 13 is determined by scanning the information on the product corresponding to the syringe 13 through the correlation of the scanning device 6 and the motor 2, the starting of the motor 2 is further controlled, and the product cannot be reused, the safety of PRP extraction is ensured.

Further improved, as shown in fig. 1 to 3, the centrifuge tube adapter 5 is pivoted on the top of the mounting frame 4 through a connecting member 7, so as to simplify the structure of the mounting frame 4, and also facilitate the installation and rotation of the centrifuge tube adapter 5 on the mounting frame 4, for the connecting member 7, it can be a hanging basket structure similar to a hanging basket suspended on the mounting frame 4, preferably, the connecting member 7 is an L-shaped sheet structure, the L shape maintains the installation convenience on the mounting frame 4, while the sheet structure increases the contact area with the mounting frame 4, the stability of the connecting structure on the mounting frame 4 can be ensured before and during centrifugation, so as to ensure the stability of the centrifugal effect, the mounting frame 4 is provided with a mounting frame through hole into which the lower end of the connecting member 7 is inserted, the centrifuge tube adapter 5 is installed on the upper end of the connecting member 7, and the lower end of the connecting member 7 passes through the mounting frame through hole from top to bottom, can be so that the width of connecting piece 7 lower extreme is less than the width of upper end this moment, because the lower extreme phase-match of mounting bracket through-hole and connecting piece 7, the upper end of connecting piece 7 just can not pass from the mounting bracket through-hole, connecting piece 7 just is installed on mounting bracket 4, behind installation syringe 13 on centrifuging tube adapter 5, when syringe 13 is in vertical state, the lower extreme of connecting piece 7 will support and avoid empting of syringe 13 by the 4 lateral walls of mounting bracket, when syringe 13 is in the horizontality, the upper end of connecting piece 7 is supported and is pressed at the top of mounting bracket 4, keep rotating the stability of back position. And for the convenience of installation on connecting piece 7 of centrifuging tube adapter 5, the upper end of connecting piece 7 is provided with the connecting piece through-hole of installation centrifuging tube adapter 5, install the sleeve pipe 70 that matches different size centrifuging tube adapters 5 in the connecting piece through-hole, centrifuging tube adapter 5 is installed in sleeve pipe 70, such structure is more stable, stability when more can keeping the centrifugation, just this moment can be fixed with the specification of sleeve pipe 70 and connecting piece 7, then when using the syringe 13 of different specifications, only need to change the size of centrifuging tube adapter 5 and come with sleeve pipe 70 phase-match, certainly also can be with sleeve pipe 70, connecting piece 7 and centrifuging tube adapter 5 and corresponding syringe 13's specification correspond, just can with their whole change during the syringe 13 of different specifications.

Further improved, as shown in fig. 1 to 2, a contact switch 8 electrically connected to the control main board 3 is disposed between the top cover 12 and the lower shell 11, so that after the top cover 12 is covered on the lower shell 11, the contact switch 8 turns on the control circuit of the control main board 3, and after the scanning information and the starting motor 2 are correspondingly confirmed, the centrifugal action is performed, and when the top cover 12 is opened, the contact switch 8 is turned off, the centrifugal action is stopped or the centrifugal action cannot be started, so as to maintain the safety in the centrifugal action.

In a further improvement, as shown in fig. 1, 2 and 4, the lower case 11 is provided with a control panel 9 electrically connected to the control main board 3, the centrifugal action can be easily adjusted by using the control panel 9, at this time, the control panel 9 may be a touch screen, and the control buttons and corresponding parameters of the centrifugal operation and information scanned by the scanning device 6 are displayed on the touch screen, and when the scanned information result is reused, alarm information is displayed to give an alarm.

In a further improvement, as shown in fig. 4, the casing 1 is further provided with a vent 14, and the vent 14 can well dissipate heat generated by the centrifuge during operation.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. A centrifuge for PRP extraction, characterized by: the centrifugal pump comprises a machine shell, a motor, a control mainboard and a rotor, wherein a centrifugal cavity is formed in the machine shell; the depth of the centrifugal cavity is greater than the length of an injector for extracting blood, and an installation frame which rotates in the horizontal direction is fixedly sleeved on the rotor; the centrifugal tube adapters are detachably pivoted at the top of the mounting frame and can rotate up and down along the mounting frame in a limiting manner, the centrifugal tube adapters are arranged at the edge of the mounting frame in a radial symmetrical manner at equal intervals along the circumferential direction of the mounting frame, the distance between the two symmetrical centrifugal tube adapters is greater than the length of an injector core rod matched with the centrifugal tube adapter, and the distance between each centrifugal tube adapter and the wall of a centrifugal cavity from the pivoting position of the centrifugal tube adapter and the mounting frame when each centrifugal tube adapter rotates to the horizontal position is greater than the length of an empty syringe barrel; and the shell is also provided with a scanning device which is electrically connected with the control mainboard and can control the starting of the motor.

2. The centrifuge for PRP extraction according to claim 1, wherein said scanning device is communicatively connected to a cloud server.

3. The centrifuge of claim 1, wherein said centrifuge tube adapter is pivotally attached to the top of the mounting frame by a connector.

4. The centrifuge for PRP extraction according to claim 3, wherein the upper end of the connecting piece is provided with a connecting piece through hole for installing a centrifuge tube adapter, a sleeve matched with centrifuge tube adapters of different sizes is installed in the connecting piece through hole, and the centrifuge tube adapter is installed in the sleeve.

5. The centrifuge for PRP extraction according to claim 3, wherein said connector is an L-shaped sheet structure, and said mounting frame is provided with a mounting frame through hole into which a lower end of the connector is inserted.

6. The centrifuge for PRP extraction according to claim 1, wherein said housing comprises a lower shell with a receiving cavity therein, a top cover covering said lower shell, said motor is mounted on said lower shell, and said mounting bracket is disposed in said receiving cavity of said lower shell.

7. The centrifuge for PRP extraction according to claim 6, wherein a contact switch electrically connected with the control mainboard is arranged between the top cover and the lower casing.

8. The centrifuge for PRP extraction according to claim 1, wherein said lower case is provided with a control panel electrically connected to a control main board.

9. The centrifuge for PRP extraction according to claim 1, wherein said motor is disposed at the center of the bottom of the casing, and the rotation shaft of said motor passes through the casing and extends into the centrifugal chamber to be fixedly connected with the rotor.

10. The centrifuge for PRP extraction according to claim 1, wherein said housing is further provided with a vent.