阅读说明：本技术 一种伸缩式采血管 (Telescopic blood collection tube ) 是由 马荣华 狄克祥 于 2019-09-23 设计创作，主要内容包括：本发明公开了一种伸缩式采血管,包括管体组件、内环体、外环体、气囊、伸缩驱动机构、弹性引流环；本发明的管体组件包括上管体、伸缩管、下管体,通过伸缩驱动机构驱动上管体和下管体纵向相对伸缩浮动,如此使得上管体、伸缩管、下管体的采血量实现调节。本发明做到了采血的干湿分离,实现构成了上管体、引流腔、环形引流槽的分离回流路径,使得内环体内部和上管体上端出来的液体实现干湿分离。(The invention discloses a telescopic blood collection tube, which comprises a tube body assembly, an inner ring body, an outer ring body, an air bag, a telescopic driving mechanism and an elastic drainage ring, wherein the inner ring body is fixed on the tube body assembly; the tube body assembly comprises an upper tube body, a telescopic tube and a lower tube body, and the upper tube body and the lower tube body are driven by the telescopic driving mechanism to longitudinally and relatively stretch and float, so that the blood sampling amount of the upper tube body, the telescopic tube and the lower tube body is adjusted. The invention realizes the dry-wet separation of blood collection, realizes the separation reflux path of the upper tube body, the drainage cavity and the annular drainage groove, and realizes the dry-wet separation of liquid in the inner ring body and at the upper end of the upper tube body.)

1. A telescopic blood collection tube is characterized by comprising a tube body assembly, an inner ring body, an outer ring body, an air bag, a telescopic driving mechanism and an elastic drainage ring; the outer ring body is sleeved on the outer side of the periphery of the inner ring body; an annular drainage groove is arranged between the outer ring body and the inner ring body; two sides of the annular drainage groove are respectively provided with a connecting block; the upper end of the outer ring body is provided with an annular sealing plate; the air bag is arranged on the outer side of the upper end of the annular closing plate and is communicated with the interior below the annular closing plate; the pipe body assembly comprises an upper pipe body, an extension pipe and a lower pipe body; the upper pipe body, the telescopic pipe and the lower pipe body are sequentially communicated end to end from top to bottom; the upper pipe body, the telescopic pipe and the lower pipe body are all arranged in the middle of the inner ring body; the lower end of the lower pipe body extends to the outer sides of the lower ends of the inner ring body and the outer ring body; the periphery of the upper end of the elastic drainage ring is hermetically arranged on the outer side of the periphery of the upper end of the upper pipe body, and the periphery of the lower end of the elastic drainage ring is hermetically arranged on the periphery of the upper end surface of the inner ring body; the elastic flow guide ring is of a conical structure with a small upper part and a big lower part; the annular closing plate and the elastic drainage ring form a drainage cavity in an enclosing manner; the lower part of the periphery of the drainage cavity is communicated with the upper end of the periphery of the annular drainage groove; the telescopic driving mechanism is arranged on one side of the inner ring body and one side of the outer ring body; the telescopic driving mechanism drives the upper pipe body and the lower pipe body to longitudinally and relatively stretch and float.

2. The telescopic blood collection tube according to claim 1, wherein the upper tube body and the lower tube body are respectively sleeved and fixed with a positioning ring; clamping plates are respectively arranged on two sides of the positioning ring; the upper side and the lower side of the inner ring body are respectively provided with a sliding clamping groove; the upper pipe body and the lower pipe body are respectively clamped in the sliding clamping grooves on the upper side and the lower side of the inner ring body in a sliding manner through clamping plates on the two sides.

3. The telescopic blood collection tube according to claim 2, wherein the telescopic driving mechanism comprises a driving screw, a driving block, an abutting plate, a connecting rod, and a driving elastic body; a cross-connection threaded channel is arranged on the connecting block on one side of the annular drainage groove; the driving screw is in threaded rotary connection with the threading thread channel; the inner end of the driving screw rod extends into the inner ring body; the inner end of the driving screw rod is provided with a driving block; one side of the upper pipe body and one side of the lower pipe body are respectively provided with a connecting rod; the end parts of the connecting rods are respectively provided with a butting plate; the opposite inner sides of the abutting plates form a conical section; the driving block is in a conical structure; the driving block is abutted between the abutting plates; the driving elastic body is sleeved on the driving screw rod; two ends of the driving elastic body are respectively pressed between the outer end face of the driving screw rod and the outer side face of the outer ring body.

4. The telescopic blood collection tube according to claim 3, further comprising an abutment mechanism; the abutting mechanism comprises a reset ring body and a reset elastic body; the relative outer sides of the clamping plates are respectively provided with a reset ring body; the peripheral outer side of the reset ring body is fixed on the peripheral inner wall of the inner ring body; a reset elastic body is respectively arranged between the reset ring body and the clamping plate; two ends of the reset elastic body respectively elastically press between the reset ring body and the clamping plate; the outer sides of the periphery of the reset elastic body are attached and abutted to the inner wall of the inner ring body.

5. The telescopic blood collection tube according to claim 3, wherein the connecting rod is of an L-shaped structure.

6. The telescopic blood collection tube according to claim 1, wherein the outer ring and the inner ring are both in a circular ring structure; the outer ring body and the inner ring body are coaxially arranged.

7. The telescopic blood collection tube according to claim 1, wherein the annular sealing plate has an inverted U-shaped longitudinal cross-section.

8. The telescopic blood collection tube according to claim 1, wherein the elastic drainage ring is made of an elastic rubber material.

Technical Field

The invention relates to a telescopic blood collection tube.

Background

The heparin tube is the medical instrument that the hospital used commonly when taking blood for patient, the heparin tube generally comprises body, plug and tube cap, current heparin tube adopts plastics or glass to make, the body of heparin tube generally is holistic tubular structure, need change different specification length's body when the liquid of different volumes is gathered to needs, so brought the inconvenience for the use, if can develop a volume adjustable heparin tube, so will greatly improve the use flexibility and the application range of heparin tube.

Disclosure of Invention

Aiming at the defects of the prior art, the invention solves the problems that: provides a telescopic blood collection tube with adjustable blood collection amount.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

A telescopic blood sampling tube comprises a tube body assembly, an inner ring body, an outer ring body, an air bag, a telescopic driving mechanism and an elastic drainage ring; the outer ring body is sleeved on the outer side of the periphery of the inner ring body; an annular drainage groove is arranged between the outer ring body and the inner ring body; two sides of the annular drainage groove are respectively provided with a connecting block; the upper end of the outer ring body is provided with an annular sealing plate; the air bag is arranged on the outer side of the upper end of the annular closing plate and is communicated with the interior below the annular closing plate; the pipe body assembly comprises an upper pipe body, an extension pipe and a lower pipe body; the upper pipe body, the telescopic pipe and the lower pipe body are sequentially communicated end to end from top to bottom; the upper pipe body, the telescopic pipe and the lower pipe body are all arranged in the middle of the inner ring body; the lower end of the lower pipe body extends to the outer sides of the lower ends of the inner ring body and the outer ring body; the periphery of the upper end of the elastic drainage ring is hermetically arranged on the outer side of the periphery of the upper end of the upper pipe body, and the periphery of the lower end of the elastic drainage ring is hermetically arranged on the periphery of the upper end surface of the inner ring body; the elastic flow guide ring is of a conical structure with a small upper part and a big lower part; the annular closing plate and the elastic drainage ring form a drainage cavity in an enclosing manner; the lower part of the periphery of the drainage cavity is communicated with the upper end of the periphery of the annular drainage groove; the telescopic driving mechanism is arranged on one side of the inner ring body and one side of the outer ring body; the telescopic driving mechanism drives the upper pipe body and the lower pipe body to longitudinally and relatively stretch and float.

Furthermore, positioning rings are fixedly sleeved on the upper pipe body and the lower pipe body respectively; clamping plates are respectively arranged on two sides of the positioning ring; the upper side and the lower side of the inner ring body are respectively provided with a sliding clamping groove; the upper pipe body and the lower pipe body are respectively clamped in the sliding clamping grooves on the upper side and the lower side of the inner ring body in a sliding manner through clamping plates on the two sides.

Furthermore, the telescopic driving mechanism comprises a driving screw rod, a driving block, a butt joint plate, a connecting rod and a driving elastic body; a cross-connection threaded channel is arranged on the connecting block on one side of the annular drainage groove; the driving screw is in threaded rotary connection with the threading thread channel; the inner end of the driving screw rod extends into the inner ring body; the inner end of the driving screw rod is provided with a driving block; one side of the upper pipe body and one side of the lower pipe body are respectively provided with a connecting rod; the end parts of the connecting rods are respectively provided with a butting plate; the opposite inner sides of the abutting plates form a conical section; the driving block is in a conical structure; the driving block is abutted between the abutting plates; the driving elastic body is sleeved on the driving screw rod; two ends of the driving elastic body are respectively pressed between the outer end face of the driving screw rod and the outer side face of the outer ring body.

Further, the device also comprises an abutting mechanism; the abutting mechanism comprises a reset ring body and a reset elastic body; the relative outer sides of the clamping plates are respectively provided with a reset ring body; the peripheral outer side of the reset ring body is fixed on the peripheral inner wall of the inner ring body; a reset elastic body is respectively arranged between the reset ring body and the clamping plate; two ends of the reset elastic body respectively elastically press between the reset ring body and the clamping plate; the outer sides of the periphery of the reset elastic body are attached and abutted to the inner wall of the inner ring body.

Furthermore, the connecting rod is of an L-shaped structure.

Furthermore, the outer ring body and the inner ring body are both in circular ring structures; the outer ring body and the inner ring body are coaxially arranged.

Furthermore, the longitudinal section of the annular closing plate is of an inverted U-shaped structure.

Further, the elastic drainage ring is made of elastic rubber materials.

The invention has the advantages of

1. The tube body assembly comprises an upper tube body, a telescopic tube and a lower tube body, and the upper tube body and the lower tube body are driven by the telescopic driving mechanism to longitudinally and relatively stretch and float, so that the blood sampling amount of the upper tube body, the telescopic tube and the lower tube body is adjusted.

2. The invention realizes the dry-wet separation of blood collection, realizes the separation reflux path of the upper tube body, the drainage cavity and the annular drainage groove, and realizes the dry-wet separation of the liquid in the inner ring body and the liquid from the upper end of the upper tube body; generally, when liquid collected by a pipe body assembly reaches the upper end of the upper pipe body, the liquid can be directly thrown out of the upper end of the upper pipe body due to inertia force, so that the liquid is wetted inside the inner ring body of the invention and pollutes parts inside the inner ring body. After being thrown out by inertia from the upper end of the upper pipe body, the liquid sequentially passes through the drainage cavity and the annular drainage groove along the elastic drainage ring which is in a conical structure with a small upper part and a large lower part, and is finally discharged from the lower end of the annular drainage groove.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of the upper part of the present invention.

Fig. 3 is an enlarged schematic structural view of the telescopic driving mechanism and the tube assembly of the present invention.

Fig. 4 is an enlarged structural schematic view of the sliding clamping groove of the inner ring body, the clamping plate, the reset ring body and the reset elastic body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, a telescopic blood collection tube comprises a tube body assembly 1, an inner ring body 3, an outer ring body 2, an air bag 4, a telescopic driving mechanism 5 and an elastic drainage ring 111; the outer ring body 2 is sleeved on the outer side of the periphery of the inner ring body 3; an annular drainage groove 23 is arranged between the outer ring body 2 and the inner ring body 3; two sides of the annular drainage groove 23 are respectively provided with a connecting block 231; the upper end of the outer ring body 2 is provided with an annular closing plate 21; the air bag 4 is arranged outside the upper end of the annular closing plate 21 and is communicated with the inside below the annular closing plate 21; the pipe body assembly 1 comprises an upper pipe body 11, an extension pipe 12 and a lower pipe body 13; the upper pipe body 11, the telescopic pipe 12 and the lower pipe body 13 are sequentially communicated and connected end to end from top to bottom; the upper pipe body 11, the telescopic pipe 12 and the lower pipe body 13 are all arranged in the middle of the inner ring body 3; the lower end of the lower pipe body 13 extends to the outer sides of the lower ends of the inner ring body 3 and the outer ring body 2; the periphery of the upper end of the elastic drainage ring 111 is hermetically arranged at the outer side of the periphery of the upper end of the upper pipe body 11, and the periphery of the lower end of the elastic drainage ring 111 is hermetically arranged at the periphery of the upper end face of the inner ring body 3; the elastic flow guide ring 111 is in a conical structure with a small upper part and a big lower part; the annular closing plate 21 and the elastic drainage ring 111 enclose a drainage cavity 211; the lower part of the periphery of the drainage cavity 211 is communicated with the upper end of the periphery of the annular drainage groove 23; the telescopic driving mechanism 5 is arranged at one side of the inner ring body 3 and the outer ring body 2; the telescopic driving mechanism 5 drives the upper pipe body 11 and the lower pipe body 13 to longitudinally and relatively telescopically float.

As shown in fig. 1 to 4, it is further preferable that positioning rings 112 are respectively fixedly sleeved on the upper pipe body 11 and the lower pipe body 13; clamping plates 113 are respectively arranged on two sides of the positioning ring 112; the upper side and the lower side of the inner ring body 3 are respectively provided with a sliding clamping groove 31; the upper pipe body 11 and the lower pipe body 13 are respectively clamped in the sliding clamping grooves 31 on the upper side and the lower side of the inner ring body 3 in a sliding manner through clamping plates 113 on the two sides. As shown in fig. 3, the telescopic driving mechanism 5 further includes a driving screw 51, a driving block 52, an abutting plate 53, a connecting rod 54, and a driving elastic body 55; a penetrating threaded channel 2311 is arranged on the connecting block 231 on one side of the annular drainage groove 23; the driving screw 51 is in threaded rotary connection with the threading thread channel 2311; the inner end of the driving screw 51 extends into the inner ring body 3; the inner end of the driving screw 51 is provided with a driving block 52; one side of the upper pipe body 11 and one side of the lower pipe body 13 are respectively provided with a connecting rod 54; the end parts of the connecting rods 54 are respectively provided with an abutting plate 53; the opposite inner sides of the abutting plates 53 form a conical section; the driving block 52 is in a conical structure; the driving block 52 is abutted between the abutting plates 53; as shown in fig. 3, the upper and lower sides of the driving block 52 with a tapered structure respectively abut against the tapered sections of the abutting plates 53 on the upper and lower sides, and by the principle of sliding abutting of the inclined plane, when the driving block 52 abuts against the two abutting plates 53, the driving block can drive the upper and lower abutting plates 53 to respectively move up and down, so as to drive the upper pipe body 11 and the lower pipe body 13 to respectively move up and down; the driving elastic body 55 is sleeved on the driving screw 51; two ends of the driving elastic body 55 are respectively pressed between the outer end surface of the driving screw 51 and the outer side surface of the outer ring body 2. As shown in fig. 2 and 4, further, an abutting mechanism 6 is further included; the abutting mechanism 6 comprises a reset ring body 61 and a reset elastic body 62; the reset ring bodies 61 are respectively arranged on the opposite outer sides of the clamping plate 113; the peripheral outer side of the reset ring body 61 is fixed on the peripheral inner wall of the inner ring body 3; a reset elastic body 62 is respectively arranged between the reset ring body 61 and the clamping plate 113; two ends of the reset elastic body 62 are respectively elastically pressed between the reset ring body 61 and the clamping plate 113; the outer sides of the periphery of the reset elastic body 61 are attached and abutted on the inner wall of the inner ring body 3. As shown in fig. 3, the connecting rod 54 is further formed in an L-shaped configuration. Further, the outer ring body 2 and the inner ring body 3 are both in a circular ring structure; the outer ring body and the inner ring body are coaxially arranged. Further, the longitudinal section of the annular closing plate 21 is in an inverted U-shaped structure. Further, the elastic deflector ring 111 is made of an elastic rubber material. The upper tube body, the telescopic tube and the lower tube body can be capillary tubes.

The tube body assembly 1 comprises an upper tube body 11, a telescopic tube 12 and a lower tube body 13, and the upper tube body 11 and the lower tube body 13 are driven to longitudinally and relatively stretch and float through a stretching driving mechanism 5, so that the blood sampling amount of the upper tube body 11, the telescopic tube 12 and the lower tube body 13 is adjusted.

The invention realizes the dry-wet separation of blood collection, realizes the separation reflux path of the upper tube body 11, the drainage cavity 211 and the annular drainage groove 23, and realizes the dry-wet separation of the liquid in the inner ring body 3 and at the upper end of the upper tube body 11; in general, when the liquid collected by the tube assembly 1 reaches the upper end of the upper tube 11, the liquid is directly thrown out of the upper end of the upper tube 11 due to inertia force, so that the liquid is wetted inside the inner ring 3 of the present invention, and the parts inside the inner ring 3 are polluted, but in the present invention, the periphery of the upper end of the elastic drainage ring 111 is hermetically installed outside the periphery of the upper end of the upper tube 11, the periphery of the lower end of the elastic drainage ring 111 is hermetically installed around the upper end surface of the inner ring 3, and the elastic drainage ring 111 is kept in a tapered structure with a small upper part and a large lower part, so that the annular closing plate 21 and the elastic drainage ring 111 enclose the drainage cavity 211, and the periphery of the drainage cavity 211 is communicated with the periphery of the annular drainage groove 23, so as to form a separate backflow path of the upper tube, the drainage cavity and the annular drainage groove, and when the liquid is thrown out of the upper end of the upper tube 11 by inertia, the elastic drainage ring 111 in a tapered structure with a small upper part and, An annular drainage groove 23, and finally, is discharged from the lower end of the annular drainage groove 23.

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 invention, 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.