CN216260853U

CN216260853U - Blood sample centrifuge tube

Info

Publication number: CN216260853U
Application number: CN202123042355.1U
Authority: CN
Inventors: 唐正晓; 杨雪; 邵杨; 宋晓梅
Original assignee: Zhongke Kangpu Health Technology Shandong Co ltd
Current assignee: Zhongke Kangpu Health Technology Shandong Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-12
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a blood sample centrifuge tube, which relates to the field of blood equipment, and adopts the technical scheme that the blood sample centrifuge tube comprises a tube body, wherein a piston and a push rod connected with the piston are arranged in the tube body, a push plate is arranged at one end of the push rod, which extends to the tube body, a needle head connecting part is arranged at one end of the tube body, which is far away from the push plate, the push rod comprises a connecting piece connected with the piston and a main rod fixedly connected with the push plate, one end of the connecting piece is inserted into the piston, and the other end of the connecting piece is fixedly connected with the main rod; the connecting piece includes the connecting block of pegging graft with the piston, and the piston was kept away from to the connecting block one end is through rupture spare and mobile jib fixed connection. The utility model has the beneficial effects that: this scheme adopts connecting piece and breaking piece as the connection structure of mobile jib and piston, and the breaking piece is because comparatively fragile, after the completion of drawing blood, can be more easily broken with the hand to keep the part of connecting piece and piston in the body. The operation is convenient, and the misoperation is not easy to occur.

Description

Blood sample centrifuge tube

Technical Field

The utility model relates to the field of blood equipment, in particular to a blood sample centrifuge tube.

Background

PRP is called platelet-rich plasma in Chinese, and is obtained through drawing certain venous blood, extracorporeal centrifugation and separation. The PRP mainly comprises platelets, leukocytes and fibronectin, wherein the platelets can release a large amount of growth factors and cytokines after being activated, the leukocytes have an anti-infection function, and the fibronectin can provide a cell scaffold. At present, PRP is widely applied to clinic, including orthopedics, ophthalmology and plastic cosmetology department.

When centrifugation is performed, it is necessary to perform the centrifugation by means of a centrifuge, and at present, the blood is usually extracted by using a syringe, then the push rod of the syringe is removed, the needle end is closed, and the syringe is placed into a basket of the centrifuge to perform centrifugation.

However, when the ordinary syringe is directly used as a centrifuge tube, the use effect is not good. The operation is troublesome when removing the push rod, and one of the main modes of adopting at present is, take out original syringe push rod tip from the piston, then trade other special push rod and piston connecting piece and carry out the piston connection, this operation process need all take out the piston and the push rod of syringe, then carry out the reinstallation of piston rubber part, and the easy pollution that appears on the one hand, on the other hand probably has the damaged condition of piston on the one hand to lead to syringe inside seal not tight, serious condition leads to even in the blood seepage of centrifugation in-process. Another way is to first draw blood with a syringe and then break off the rear part of the original plunger of the syringe, leaving only a small section in the syringe barrel, which has the disadvantage that blood is drawn first and then the plunger is broken off, which may cause the plunger to be directly pulled out of the barrel and cause the blood inside to leak out if the operation is not proper.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem, the utility model provides a blood sample centrifuge tube.

The technical scheme includes that the syringe comprises a tube body, wherein a piston and a push rod connected with the piston are arranged in the tube body, a push plate is arranged at one end, extending to the tube body, of the push rod, a needle head connecting part is arranged at one end, far away from the push plate, of the tube body, the push rod comprises a connecting piece connected with the piston and a main rod fixedly connected with the push plate, one end of the connecting piece is inserted into the piston, and the other end of the connecting piece is fixedly connected with the main rod;

the connecting piece includes the connecting block of pegging graft with the piston, the connecting block keep away from the piston one end through the rupture spare with mobile jib fixed connection.

Preferably, the connecting piece is integrally formed with the push rod and the push plate;

the breaking piece is a plate body or a cylinder with a small diameter. The break is preferably a thin plate or a cylinder.

Preferably, the cavity inside the tube body is divided into a cylindrical cavity part corresponding to the tube body and a conical cavity part corresponding to the needle head connecting part, the cylindrical cavity part and the conical cavity part are communicated, and the outer diameter of the piston corresponds to the inner diameter of the cylindrical cavity part.

Preferably, one end of the piston, which is far away from the push rod, is a cone corresponding to the conical cavity part.

Preferably, the end of the piston away from the push rod is a plane.

Preferably, a connecting plate is fixedly arranged between the connecting block and the breaking piece, and is provided with a jack which is a long-strip slot hole;

corresponding to the connecting plate, the device also comprises a push-pull device;

the push-pull device comprises two push-pull plates which are arranged in parallel, one ends of the two push-pull plates are connected to one end of the hanging plate, and the connection part of the push-pull plates and the hanging plate is in flexible connection;

one end of one of the push-pull plates, which is far away from the hanging plate, is provided with a limiting groove, the end part of the other push-pull plate is provided with an inserting rod corresponding to the limiting groove, the axis of the inserting rod is vertical to the plate body of the push-pull plate on which the inserting rod is arranged, and the inserting rod faces the direction of the other push-pull plate;

the inserted rod is made of elastic material.

The limiting groove is a straight groove hole.

The push-pull plate is made of a slightly elastic plastic plate, and the hanging plate is provided with hanging holes for hanging the push-pull device.

Preferably, a distance is left between the two push-pull plates, which corresponds to the plate thickness of the connecting plate.

The technical scheme provided by the embodiment of the utility model has the following beneficial effects: this scheme adopts connecting piece and breaking piece as the connection structure of mobile jib and piston, and the breaking piece is because comparatively fragile, after the completion of drawing blood, can be more easily broken with the hand to keep the part of connecting piece and piston in the body. The operation is convenient, and the misoperation is not easy to occur.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of an internal structure according to an embodiment of the present invention.

Fig. 3 is a partially enlarged view a of fig. 2.

FIG. 4 is a schematic view of a compression bar and compression plate assembly according to an embodiment of the present invention.

Wherein the reference numerals are: 1. a pipe body; 11. a head portion; 2. a piston; 3. a push rod; 31. a main rod; 4. pushing the plate; 5. a connecting member; 51. connecting blocks; 52. a breaking member; 53. connecting plates; 54. a jack; 6. a push-pull device; 61. a push-pull plate; 62. hanging the plate; 63. a limiting groove; 64. inserting a rod; 65. and (5) combining a pressure lever and a pressure plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the utility model and are not intended to be limiting.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the utility model, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, e.g. as being 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

Referring to fig. 1 and 2, the utility model provides a blood sample centrifuge tube, which comprises a tube body 1, wherein a piston 2 and a push rod 3 connected with the piston 2 are arranged in the tube body 1, a push plate 4 is arranged at one end of the push rod 3 extending to the tube body 1, a needle head connecting part 11 is arranged at one end of the tube body 1 far away from the push plate 4, the push rod 3 comprises a connecting part 5 connected with the piston 2 and a main rod 31 fixedly connected with the push plate 4, one end of the connecting part 5 is inserted into the piston 2, and the other end of the connecting part is fixedly connected with the main rod 31;

the connecting piece 5 comprises a connecting block 51 inserted with the piston 2, and one end of the connecting block 51 far away from the piston 2 is fixedly connected with the main rod 31 through a breaking piece 52.

The connecting piece 5 is integrally formed with the push rod 3 and the push plate 4;

the break 52 is a plate or a small diameter cylinder. The break 52 is preferably a thin plate or a cylinder.

Different from the existing syringe, the scheme adopts the connecting piece 51 and the breaking piece 52 as the connecting structure of the main rod 31 and the piston 2, and the breaking piece 52 can be broken by hand more easily after the blood drawing is finished because of relative fragility, thereby keeping the part of the connecting piece 5 and the piston 2 in the tube body 1. The operation is convenient, and the misoperation is not easy to occur.

The cavity inside the tube body 1 is divided into a cylindrical cavity part corresponding to the tube body and a conical cavity part corresponding to the needle head connecting part 11, the cylindrical cavity part and the conical cavity part are communicated, and the outer diameter of the piston 2 corresponds to the inner diameter of the cylindrical cavity part.

Through the experiment discovery, when traditional syringe directly regarded as the centrifuging tube, because the body of current syringe is close to syringe needle one end and inside piston, is planar structure, and this structure is when pushing out inside blood, and the intermediate velocity of flow is too fast, and the marginal portion velocity of flow is slow, so can produce "wall built-up" phenomenon at last. The needle end of the tube body in the scheme is conical, namely the conical cavity part, the force is more uniform when liquid flows outwards due to the structure of the conical body, and the wall hanging phenomenon cannot occur.

Example 2

On the basis of the embodiment 1, the end of the piston 2 far away from the push rod 3 is a cone corresponding to the conical cavity part.

The end of the piston 2 away from the push rod 3 is a plane. Different from the above-mentioned embodiment, adopt planar piston 2, then can be in the cavity of reserving a cone of piston 2 and body 1, conical cavity portion promptly, conical cavity portion can be when this centrifuging tube production, in advance with the anticoagulant seal wherein, to follow-up preparation PRP, has better effect.

Example 3

Referring to fig. 3 and 4, on the basis of the above embodiment, a connecting plate 53 is fixedly arranged between the connecting block 51 and the breaking piece 52, the connecting plate 53 is provided with a plug hole 54, and the plug hole 54 is a long-strip slot hole;

corresponding to the connecting plate 53, the device also comprises a push-pull device 6;

the push-pull device 6 comprises two push-pull plates 61 which are arranged in parallel, one ends of the two push-pull plates 61 are connected with one end of the hanging plate 62, and the connection part of the push-pull plates 61 and the hanging plate 62 is in flexible connection;

one end of one of the push-pull plates 61, which is far away from the hanging plate 62, is provided with a limiting groove 63, the end part of the other push-pull plate 61 is provided with an inserting rod 64 corresponding to the limiting groove 63, the axis of the inserting rod 64 is vertical to the plate body of the push-pull plate 51 on which the inserting rod 64 is arranged, and the inserting rod 64 is arranged towards the direction of the other push-pull plate 61;

the plunger 64 is made of an elastic material.

The limiting groove 63 is a straight groove hole.

The push-pull plate 61 is made of a slightly elastic plastic plate, and the hanging plate 62 is provided with a hanging hole for hanging the push-pull device 6.

The two push-pull plates 61 are spaced apart by a distance corresponding to the thickness of the connecting plate 53.

The device can be separated after the connecting block 51 and the main rod 31 are separated through the breaking piece 52, after the separation is finished, the push-pull device 6 can be held by hand, the two push-pull plates 61 are slightly separated, then one end of the inserting rod 64 is inserted into the pipe body 1, the inserting rod 64 is inserted into the inserting hole 54, and therefore the connecting piece 5 can be conveniently closed and operated by the push-pull plate 61. To facilitate insertion of the plunger 64 into the receptacle 54, the plunger 64 is selected to be a resilient rod and the receptacle 54 is a slot. The insertion of the insertion rod 64 is facilitated by the elongated slot 54, considering that the insertion rod 64 may be inclined due to the link plate 53 when the push-pull device 6 is inserted downward.

One side of one of the push-pull plates 61 facing the other push-pull plate 61 is provided with a compression rod and compression plate combination 65, and a plate body of the other push-pull plate 61 is provided with a through groove corresponding to a compression rod in the compression rod and compression plate combination 65. The two push-pull plates 61 can be directly separated by pressing the pressure rod and pressure plate combination 65, so that the operation is more convenient.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a blood sample centrifuging tube, includes body (1), set up piston (2) and push rod (3) be connected with piston (2) in body (1), push rod (3) extend to the one end of body (1) and set up push pedal (4), and the one end that push pedal (4) were kept away from to body (1) is syringe needle connecting portion (11), its characterized in that, push rod (3) include connecting piece (5) be connected with piston (2), and with push pedal (4) fixed connection's mobile jib (31), connecting piece (5) one end with plug in with piston (2), the other end with mobile jib (31) fixed connection;

the connecting piece (5) comprises a connecting block (51) which is connected with the piston (2) in an inserting mode, and one end, far away from the piston (2), of the connecting block (51) is fixedly connected with the main rod (31) through a breaking piece (52).

2. The blood sample centrifuge tube according to claim 1, wherein the connecting piece (5) is formed integrally with the push rod (3) and the push plate (4);

the breaking piece (52) is a plate body or a small-diameter cylinder.

3. The blood sample centrifuge tube of claim 1, wherein the cavity inside the tube body (1) is divided into a cylindrical cavity part corresponding to the tube body and a conical cavity part corresponding to the needle connecting part (11), the cylindrical cavity part and the conical cavity part are communicated, and the outer diameter of the piston (2) corresponds to the inner diameter of the cylindrical cavity part.

4. The blood sample centrifuge tube according to claim 3, wherein the end of the piston (2) away from the push rod (3) is a cone corresponding to the conical cavity.

5. The blood sample centrifuge tube according to claim 3, wherein the end of the piston (2) remote from the push rod (3) is flat.

6. The blood sample centrifuge tube according to any one of claims 1 to 5, wherein a connecting plate (53) is fixedly arranged between the connecting block (51) and the breaking piece (52), the connecting plate (53) is provided with a plug hole (54), and the plug hole (54) is a strip slot hole;

corresponding to the connecting plate (53), the device also comprises a push-pull device (6);

the push-pull device (6) comprises two push-pull plates (61) which are arranged in parallel, one ends of the two push-pull plates (61) are connected to one end of the hanging plate (62), and the connection part of the push-pull plates (61) and the hanging plate (62) is in flexible connection;

one end of one of the push-pull plates (61) far away from the hanging plate (62) is provided with a limiting groove (63), and the end part of the other push-pull plate (61) is provided with an inserted rod (64) corresponding to the limiting groove (63);

the plunger (64) is made of an elastic material.