CN217431746U

CN217431746U - Separation head mechanism for extracting PRP layered substances

Info

Publication number: CN217431746U
Application number: CN202220081935.7U
Authority: CN
Inventors: 李章华; 童亚; 马全; 盘海峰
Original assignee: Wuhan Langke Medical Devices Co ltd
Current assignee: Wuhan Langke Medical Devices Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-09-16
Anticipated expiration: 2032-01-13

Abstract

The utility model discloses a separation head mechanism for extracting PRP layered substances, which comprises an injector, a long needle head, a mounting bottom plate, a lead screw motor, a movable plate and an injector placing block, wherein the lead screw motor comprises a screw rod at the shaft outlet end of the lead screw motor and a nut meshed with the screw rod, the movable plate is in threaded connection with the nut, and the lower end of the movable plate is fixedly provided with a drag hook; the injector is inserted into the injector placing block and comprises a cylinder body and a piston arranged in the cylinder body, the long needle head is sleeved at the lower end of the cylinder body, and the piston is sleeved on the draw hook; an electromagnet is fixedly arranged on the lower side of the mounting bottom plate, one end of the electromagnet is adsorbed on the injector placing block, and the other end of the electromagnet is adsorbed on the robot. The utility model provides a simple structure guarantees the sharp-end space accurate positioning of syringe needle of long syringe needle, is convenient for extract PRP layering material fast.

Description

Separation head mechanism for extracting PRP layered substances

Technical Field

The utility model belongs to the technical field of the extraction of PRP layering material, specifically a first mechanism of separation for extracting PRP layering material.

Background

For the layered material after layering in PRP, it is generally necessary to insert a syringe and a long needle into a centrifuge tube for extraction. Because the syringe has the piston itself, relative motion can take place for piston and barrel in the extraction process, if use the module of straight line class to make, then the volume is great, and the action is numerous and complex, and the time spent is more, and the structure is complicated, and the unable accurate positioning of the sharp-end spatial position of syringe needle of long syringe needle in addition to cause the extraction action to fail.

SUMMERY OF THE UTILITY MODEL

In order to solve the volume technical problem that exists, the utility model provides a separation head mechanism for extracting PRP layering material, simple structure guarantees the most advanced space accurate positioning of syringe needle of long syringe needle, is convenient for extract PRP layering material fast.

The utility model adopts the technical proposal that:

a separation head mechanism for extracting PRP layered substances comprises an injector and a long needle head, and further comprises a mounting base plate, a lead screw motor, a movable plate and an injector placing block, wherein the lead screw motor is in threaded connection with the mounting base plate, the lead screw motor comprises a screw rod at the shaft outlet end of the lead screw motor and a nut meshed with the screw rod, the screw rod is arranged in the mounting base plate, the movable plate is in threaded connection with the nut, and the lower end of the movable plate is fixedly provided with a drag hook; the injector is inserted into the injector placing block and comprises a cylinder body and a piston arranged in the cylinder body, the long needle head is sleeved at the lower end of the cylinder body, and the piston is sleeved on the draw hook; an electromagnet is fixedly arranged on the lower side of the mounting bottom plate, one end of the electromagnet is adsorbed on the injector placing block, and the other end of the electromagnet is adsorbed on the robot.

Further, a limiting plate is fixedly arranged on the inner side wall of the mounting bottom plate.

The clamping jaw mounting plate is in threaded connection with the outer side wall of the mounting bottom plate; one end of the servo clamping jaw is in threaded connection with the clamping jaw mounting plate, and the other end of the servo clamping jaw is in threaded connection with a clamping finger.

Further, the syringe height is greater than the syringe placement block height.

Further, the outer side of the mounting base plate is in threaded connection with a connecting block, and the connecting block is fixed to the head of the robot through a pin.

The utility model has the advantages that: 1) the screw motor is arranged to engage the screw and the nut, so that the screw moves axially, the screw and the nut are prevented from rotating relatively, and the extraction operation is convenient to complete; 2) the arranged electromagnet and the limiting plate ensure the extraction stability of the layered substances; 3) the servo clamping jaws and the clamping fingers are arranged to facilitate clamping of the centrifuge tube.

Drawings

Fig. 1 is a schematic perspective view of a separation head mechanism for extracting PRP layered material according to the present invention;

fig. 2 is a schematic cross-sectional structure diagram of a separation head mechanism for extracting PRP layered material according to the present invention.

The numbers in the figures are as follows: 1. a long needle head; 2. an injector; 21. a barrel; 22. a piston; 3. an electromagnet; 4. a movable plate; 5. a limiting plate; 6. pulling a hook; 7. mounting a bottom plate; 8. connecting blocks; 9. a lead screw motor; 91. a screw; 92. a nut; 10. placing the blocks; 11. a servo clamping jaw; 12. a clamping jaw mounting plate; 13. and (4) clamping fingers.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It should be noted that, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships indicated on the basis of the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1 to 2, a separation head mechanism for extracting PRP layered substances comprises an injector 2 and a long needle head 1, and further comprises a mounting base plate 7, a lead screw motor 9, a movable plate 4 and an injector 2 placing block 10, wherein the lead screw motor 9 is connected to the mounting base plate 7 through a thread, the lead screw motor 9 comprises a screw 91 at an output shaft end thereof and a nut 92 engaged with the screw 91, the screw 91 is arranged inside the mounting base plate 7, the movable plate 4 is connected with the nut 92 through a thread, and a draw hook 6 is fixedly arranged at a lower end of the movable plate 4; the syringe 2 is inserted into the syringe 2 placing block 10, the syringe 2 comprises a cylinder 21 and a piston 22 arranged inside the cylinder 21, the long needle 1 is sleeved at the lower end of the cylinder 21, and the piston 22 is sleeved on the draw hook 6; an electromagnet 3 is fixedly arranged on the lower side of the mounting bottom plate 7, one end of the electromagnet 3 is adsorbed on the injector 2 placing block 10, and the other end of the electromagnet is adsorbed on the robot.

As a further step of this embodiment, the inner side wall of the mounting base plate 7 is fixedly provided with a limiting plate 5, so as to avoid the influence of the large-amplitude rise of the piston 22 on the extraction result during the extraction process.

As a further step of the embodiment, the clamping jaw mounting plate further comprises a clamping jaw mounting plate 12 and a servo clamping jaw 11, wherein the clamping jaw mounting plate 12 is in threaded connection with the outer side wall of the mounting bottom plate 7; servo clamping jaw 11 one end threaded connection in clamping jaw mounting panel 12, its other end threaded connection have press from both sides and indicate 13, and this servo clamping jaw 11 and press from both sides and indicate 13 for the convenience of pressing from both sides and get the centrifuging tube.

As a further step of this embodiment, the height of the syringe 2 is greater than the height of the placement block 10 of the syringe 2, so as to facilitate the entry and exit of the long needle 1 in the centrifuge tube.

As a further improvement of this embodiment, the outer side of the mounting base plate 7 is connected with a connecting block 8 through a thread, the connecting block 8 is fixed on the head of the robot through a pin, and the connecting block 8 is used for ensuring the stability of the robot in the process of disengaging from the electromagnet 3.

The utility model discloses a theory of operation: after the centrifuging tube layering was accomplished, press from both sides through servo clamping jaw and clamp and get this centrifuging tube, the layering material that the extraction needs of long syringe needle pinpointing: the robot adsorbs the injector placing block to drive the whole body to move, and the space position of the tip of the long needle head is determined according to the test station, so that the space coordinate of the long needle head is obtained; determining the length of the long needle inserted into the PRP centrifugal tube according to the space coordinate of the long needle and the layering result of the centrifugal tube; the screw motor drives the screw nut to move linearly, and then the movable plate, the draw hook and the piston are sequentially driven to move up and down together, so that the positioning operation and the extraction operation of the long needle head on layered substances to be extracted in the centrifuge tube are completed.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the principles and spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The separation head mechanism for extracting the PRP layered substances comprises an injector (2) and a long needle head (1), and is characterized by further comprising a mounting base plate (7), a lead screw motor (9), a movable plate (4) and an injector (2) placing block (10), wherein the lead screw motor (9) is in threaded connection with the mounting base plate (7), the lead screw motor (9) comprises a screw rod (91) at the shaft outlet end of the lead screw motor and a nut (92) meshed with the screw rod (91), the screw rod (91) is arranged in the mounting base plate (7), the movable plate (4) is in threaded connection with the nut (92), and the lower end of the movable plate (4) is fixedly provided with a draw hook (6); the injector (2) is inserted into the injector (2) placing block (10), the injector (2) comprises a cylinder (21) and a piston (22) arranged in the cylinder (21), the long needle (1) is sleeved at the lower end of the cylinder (21), and the piston (22) is sleeved on the draw hook (6); an electromagnet (3) is fixedly arranged on the lower side of the mounting bottom plate (7), one end of the electromagnet (3) is adsorbed on the injector (2) placing block (10), and the other end of the electromagnet is adsorbed on the robot.

2. The separation head mechanism for extracting PRP layered substances according to claim 1, characterized in that the inner side wall of the mounting base plate (7) is fixedly provided with a limiting plate (5).

3. A separating head mechanism for extracting PRP layered material according to claim 1 or 2, further comprising a jaw mounting plate (12) and a servo jaw (11), said jaw mounting plate (12) being screw-connected to an outer side wall of said mounting base plate (7); one end of the servo clamping jaw (11) is in threaded connection with the clamping jaw mounting plate (12), and the other end of the servo clamping jaw is in threaded connection with a clamping finger (13).

4. A separating head mechanism for extracting PRP layered material according to claim 1, wherein the height of said syringe (2) is larger than the height of said syringe (2) placement block (10).

5. The separation head mechanism for extracting PRP layered material according to claim 1, wherein a connection block (8) is screwed to an outside of the mounting base plate (7), and the connection block (8) is fixed to the robot head by a pin.