CN213160881U

CN213160881U - A centrifuging tube for collecting rich platelet fibrin

Info

Publication number: CN213160881U
Application number: CN202021588043.3U
Authority: CN
Inventors: 于清龙
Original assignee: Changzhou Doug Medical Technology Co ltd
Current assignee: Changzhou Doug Medical Technology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-05-11
Anticipated expiration: 2030-08-03

Abstract

A centrifuge tube for collecting platelet rich fibrin, comprising: the screw cap is matched with the syringe interface, the rear end of the screw cap is connected with the front end of the tube body in a screw thread mode, and the transition section between the front end opening and the rear end opening is an inner surface matched with the piston type rubber plug; the pipe body is a hollow pipe with an upper opening and a lower opening, and the front end opening is connected with a threaded cap; the rear port is a threaded structure protruding inwards and consists of a protruding part and a protruding internal thread surface; the piston type rubber plug is integrally arranged in the rear end of the pipe body and comprises a piston head and a rubber plug column, the piston head and the rubber plug column are tightly contacted with the inner wall of the pipe body to form sealing fit, and meanwhile, the bottom end of the rubber plug column is abutted against the protruding part; the thread rotary push rod comprises a thread rod body, and the thread rod body is in thread fit with the inner thread surface of the protrusion of the pipe body. The utility model discloses not only can be quick obtain rich platelet fibrin's gel piece, can also make convenient more, swift, safety when taking out the gel piece, the gel piece integrity that takes out is high.

Description

A centrifuging tube for collecting rich platelet fibrin

Technical Field

The utility model relates to a centrifuging tube, especially a centrifuging tube for collecting rich platelet fibrin.

Background

Currently, it is known that Platelet Rich Fibrin (PRF) is a second generation Platelet concentrate product following Platelet Rich plasma, and is defined as an autologous leukocyte and Platelet Rich fibrous biomaterial. The preparation method comprises the steps of drawing venous blood, and placing the venous blood in an aseptic centrifuge tube without antithrombin; then immediately putting the centrifugal tube into a centrifugal machine for centrifugation; and standing, wherein the blood sample is divided into 3 layers, and light yellow gel in the middle layer is taken out between the red blood cell fragments at the bottom layer and the light yellow clarified liquid platelet plasma at the top layer, namely the platelet-rich fibrin.

The platelet-rich fibrin is widely applied to stomatology, maxillofacial surgery, orthopedics, plastic surgery and the like, is mainly prepared into a film shape in the past and is used for repairing wound surfaces, and the study of the existing scholars mixes the prepared PRF gel and autologous fat particles according to a certain proportion and is applied to autologous fat transplantation such as autologous fat breast augmentation and the like to improve the survival rate of autologous fat.

The process for preparing the platelet-rich fibrin into a film shape comprises the following steps: discarding the supernatant, removing red blood cell part at the bottom of the gel to obtain primary PRF gel, standing in a dry sterilized container for 10min to naturally contract and release serum therein, or adsorbing serum with sterile gauze, and extruding and shaping to obtain platelet-rich fibrin membrane with certain shape, elasticity and toughness.

Known from the preparation of above-mentioned current rich platelet fibrin membrane and the acquisition process of rich platelet fibrin, current centrifuging tube of collecting rich platelet fibrin is ordinary test tube form centrifuging tube (generally with the tube closure lid tightly to prevent that the liquid from leaking out), can obtain the gel piece of rich platelet fibrin after the centrifuge centrifugation of specific rotational speed, need special instrument clamp when taking out the gel piece of rich platelet fibrin after the centrifugation to get out, it is enough thoroughly easy to pinch off or press from both sides the bits of broken glass and if directly throw off easily spill out with serum etc. and cause the pollution to take out, the operation process is also complicated relatively.

Disclosure of Invention

In order to overcome the above-mentioned not enough of prior art, the utility model provides a centrifuging tube for collecting rich platelet fibrin, the gel piece of the rich platelet fibrin of acquisition that this centrifuging tube not only can be quick, convenient more, swift, safety when also making and taking out the gel piece, the gel piece that takes out is complete the degree height.

The utility model provides a technical scheme that its technical problem adopted is: the method comprises the following steps: the threaded cap is internally and externally designed in a stepped manner, the opening at the front end of the threaded cap is matched with the interface of the injector, the rear end of the threaded cap is connected with the front end of the tube body in a threaded manner, and the transition section between the openings at the front end and the rear end is an inner surface matched with the piston-type rubber plug; the pipe body comprises a hollow pipe body with an upper opening and a lower opening, and the front end opening of the pipe body is provided with a threaded cap; the rear port is a threaded structure protruding inwards and consists of a protruding part and a protruding internal thread surface; the piston type rubber plug is integrally arranged in the rear end of the pipe body and comprises a piston head and a rubber plug column, the piston head and the rubber plug column are tightly contacted with the inner wall of the pipe body to form sealing fit, and meanwhile, the bottom end of the rubber plug column is abutted against the protruding part; and the thread rotary push rod comprises a thread rod body, the thread rod body is in thread fit with the raised inner thread surface of the pipe body, and the front end of the thread rod body pushes the piston type rubber plug to advance in the pipe body by rotating the thread rod body.

Compared with the prior art, the centrifuge tube for collecting platelet-rich fibrin of the utility model can utilize the tube body to contain venous blood, then the threaded cap is installed, then the centrifuge tube is processed by the centrifuge and stands still, and the blood sample in the centrifuge tube is divided into three layers; next, through threaded cap front end opening butt joint syringe at the top, install the rear end at the body with screw thread spinning rod, rotatory screw thread spinning rod extrudes the serum of upper strata in the syringe, then remove threaded cap, continue to rotate behind the screw thread spinning rod can be with light swift take out platelet rich fibrin's gel piece to the gel piece that takes out is more complete, and operation process is simple moreover, can not cause the splash of serum or erythrocyte to leak again.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an overall assembly view of an embodiment of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a cross-sectional view of a threaded cap in an embodiment of the invention.

Fig. 4 is a cross-sectional view of a threaded tubular body with a piston-type plug installed in the body in an embodiment of the invention.

Fig. 5 is a cross-sectional view of a threaded spindle according to an embodiment of the present invention.

In the figure, 1, a threaded cap, 101, a front end opening, 102, a transition section, 103, a rear end opening, 2, a pipe body, 201, an external thread, 202, a pipe body, 203, a protruding part, 204, a protruding internal thread surface, 205, a scale mark, 3, a threaded rotary push rod, 301, a threaded rod body, 302, a push handle, 4, a piston type rubber plug, 401, a piston head, 402, a convex body, 403, a rubber plug column, 5 and a sealing cover.

Detailed Description

The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first preferred embodiment:

as shown in fig. 1 to fig. 5, the present embodiment provides a centrifuge tube for collecting platelet-rich fibrin, including: the inner part of the nut cap 1 with screw thread is smooth and has no burr, the inner part and the outer part of the nut cap are designed in a ladder shape, the front end opening 101 of the nut cap is matched with the interface of the injector, the rear end of the nut cap is connected with the front end of the tube body 2 in a screw thread way, and the transition section 102 between the front end opening 103 and the rear end opening 103 is the inner surface matched with the piston type rubber plug 4; the pipe body 2 comprises a hollow pipe body 202 with an upper opening and a lower opening, the inner pipe wall is smooth, and the front end opening of the pipe body 202 is provided with a threaded cap 1; the rear port is of a thread structure protruding inwards and consists of a protruding part 203 and a protruding inner thread surface 204, the protruding part 203 can block the piston type rubber plug 4, and the thread of the protruding inner thread surface 204 can be meshed with the external thread 201 of the thread screwing and pushing rod 3; the piston type rubber plug 4 is integrally arranged in the rear end of the pipe body 2 and comprises a piston head 401 and a rubber plug column 403, the piston head 401 and the rubber plug column 403 are tightly contacted with the inner wall of the pipe body 2 to form sealing fit, and meanwhile, the bottom end of the rubber plug column 403 abuts against the protruding part 203; and the thread rotary push rod 3 comprises a thread rod body 301, the thread rod body 301 is in thread fit with the raised inner thread surface 204 of the tube body 2, and the front end of the thread rod body 301 pushes the piston type rubber plug 4 to advance in the tube body 2 by rotating.

In the present embodiment, the specification of the syringe interface can be selected from 1ml/2.5ml/5ml/10 ml.

The second preferred embodiment:

as shown in fig. 4, in the centrifuge tube for collecting platelet-rich fibrin provided by this embodiment, a plurality of protrusions 402 are disposed on a plug column 403 of the piston-type plug 4 and are in close contact with an inner wall of the rod body. The main function of the protrusion is to tightly seal the tube body 2 and prevent blood leakage.

The third preferred embodiment:

as shown in fig. 1-2, in the centrifuge tube for collecting platelet-rich fibrin provided in this embodiment, the threaded screw rod 3 further includes a push handle 302 fixedly connected to the rear end of the threaded rod body 301.

The preferred embodiment four:

as shown in fig. 2, in the centrifuge tube for collecting platelet-rich fibrin provided in this embodiment, the push handle 302 is a cross-like structure, and is vertically connected to the threaded push rod through a central portion, so as to facilitate convenient rotation and force application.

Preferred embodiment five:

as shown in fig. 5, in the centrifuge tube for collecting platelet-rich fibrin provided in this embodiment, a front end and a rear end of the threaded rod body 301 are respectively formed with a section of unthreaded rod. For pushing the piston-type plug 4 forward in the tube body 2.

Preferred embodiment six:

as shown in fig. 3 and 4, in the centrifuge tube for collecting platelet-rich fibrin provided in this embodiment, the threaded cap 1 has an internal thread at the rear end connected to the tube body 2, and the corresponding end of the tube body 2 has an external thread 201, which are tightly engaged with each other.

The preferred embodiment is seven:

as shown in fig. 1, in the centrifuge tube for collecting platelet-rich fibrin provided in this embodiment, the threaded cap 1 is further provided with a sealing cap at the front end opening 101, and the sealing cap 5 may be in the form of a plug, a cap, or the like, for tightly closing the tube body 2 to a degree that the tube body is liquid-tight when inverted, especially under the centrifugal action of a centrifuge, to prevent blood samples from leaking out, especially for radioactive or strongly corrosive samples; the sealing cap 5 also serves to prevent evaporation of the sample and to hold the tube against deformation.

Preferred embodiment eight:

as shown in fig. 1, in the centrifuge tube for collecting platelet-rich fibrin provided by this embodiment, in this embodiment, the outer surface of the tube body 2 is provided with a graduation mark 205 along the length direction of the tube body 202, so as to help people to more intuitively see the content value after blood stratification, thereby facilitating quantification operation.

The preferred embodiment is nine:

as shown in fig. 1 to fig. 5, in the centrifuge tube for collecting platelet-rich fibrin provided in this embodiment, the threaded cap 1, the tube body 2 and the threaded spindle 3 are all made of transparent plastic. And respectively carrying out injection molding by using professional equipment through a plurality of molds to prepare the second product.

The utility model discloses an application scope: preparing a gel block rich in platelet fibrin and preparing platelet-rich plasma.

The utility model discloses a use the object: the centrifugal tube is suitable for mammals, such as pets like dogs, cats and the like.

The utility model discloses a use method: 3-10ml of venous blood sample of an animal is extracted and injected into a centrifugal tube, after centrifugation in a special centrifuge, an injector is inserted into the upper part of a screw cap, a rotary push rod is rotated to extrude serum or platelet-rich plasma into the injector, and then the screw cap is screwed off to extrude the gel block of the platelet-rich fibrin through the rotary push rod.

To sum up, the utility model discloses a show the advantage and embody as follows:

1) the product is convenient to manufacture and low in use cost;

2) the gel block rich in platelet fibrin can be completely and quickly taken out when being extracted;

3) the blood product can be effectively prevented from splashing and being polluted, and the safety of operators is effectively improved;

4) by changing the centrifugation parameters, not only the platelet-rich fibrin gel mass but also platelet-rich plasma (PRP, first-generation platelet concentrate) can be extracted.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do the restriction in any form, all basis the utility model discloses a technical essence makes any simple modification and equal change to above embodiment, all falls into within the protection scope of the utility model.

Claims

1. A centrifuge tube for collecting platelet rich fibrin, comprising:

the threaded cap (1) is internally and externally designed in a stepped manner, the front end opening (101) of the cap is matched with an injector interface, the rear end of the cap is connected with the front end of the tube body (2) in a threaded manner, and a transition section (102) between the front end opening and the rear end opening (103) is an inner surface matched with the piston type rubber plug (4);

the pipe body (2) comprises a hollow tubular pipe body (202) with an upper opening and a lower opening, and the front end opening of the pipe body is connected with a threaded cap (1); the rear port is a threaded structure which protrudes inwards and consists of a protruding part (203) and a protruding inner thread surface (204);

the piston type rubber plug (4) is integrally installed inside the rear end of the pipe body (2) and comprises a piston head (401) and a rubber plug column (403), the piston head and the rubber plug column are tightly contacted with the inner wall of the pipe body (2) to form sealing fit, and meanwhile, the bottom end of the rubber plug column (403) is abutted against the protruding part (203);

and the thread rotary push rod (3) comprises a thread rod body (301), the thread rod body (301) is in thread fit with the protruding inner thread surface (204) of the pipe body (2), and the front end of the thread rod body (301) pushes the piston type rubber plug (4) to advance in the pipe body (2) when the thread rod body (301) is rotated.

2. The centrifuge tube of claim 1, wherein the centrifuge tube comprises: the rubber plug column (403) of the piston type rubber plug (4) is provided with a plurality of convex bodies (402) which are in close contact with the inner wall of the rod body.

3. The centrifuge tube according to claim 1 or 2, wherein the centrifuge tube comprises: the thread rotary push rod (3) further comprises a push handle (302) fixedly connected to the rear end portion of the thread rod body (301).

4. The centrifuge tube of claim 3, wherein the centrifuge tube comprises: the push handle (302) is of a cross-like structure and is vertically connected with the threaded push rod through the center part.

5. The centrifuge tube according to claim 1 or 2, wherein the centrifuge tube comprises: the front end and the rear end of the threaded rod body (301) are respectively provided with a section of unthreaded rod body.

6. The centrifuge tube according to claim 1 or 2, wherein the centrifuge tube comprises: the rear end of the threaded cap (1) connected with the pipe body (2) is provided with an internal thread, the corresponding end of the pipe body (2) is provided with an external thread (201), and the internal thread and the external thread are tightly meshed.

7. The centrifuge tube of claim 6, wherein the centrifuge tube comprises: the threaded cap (1) is also provided with a sealing cover (5) at the front end opening (101).

8. The centrifuge tube according to claim 1 or 2, wherein the centrifuge tube comprises: the outer surface of the pipe body (2) is provided with scale marks (205) along the length direction of the pipe body (202).

9. The centrifuge tube according to claim 1 or 2, wherein the centrifuge tube comprises: the threaded cap (1), the threaded pipe body (2) and the threaded rotary push rod (3) are all made of transparent plastic materials.