CN110575185B - Dry-wet separation type blood collection tube - Google Patents
Dry-wet separation type blood collection tube Download PDFInfo
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- CN110575185B CN110575185B CN201910896754.2A CN201910896754A CN110575185B CN 110575185 B CN110575185 B CN 110575185B CN 201910896754 A CN201910896754 A CN 201910896754A CN 110575185 B CN110575185 B CN 110575185B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150343—Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150755—Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
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Abstract
The invention discloses a dry-wet separation type 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 a separation mechanism, wherein the tube body assembly comprises a tube body, a tube body and a tube body; can drive annular drainage plate, flexible pipe of annular, annular floating plate when last body is floated from top to bottom and float from top to bottom together in the upper end of internal ring body, so make the liquid that comes out from last body upper end discharge to annular drainage inslot from the big cone structure's of the top down annular drainage plate all the time, the structure is more stable, has realized the wet separation futilely of internal ring internal portion.
Description
Technical Field
The invention relates to a dry-wet separation type 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 dry-wet separation type blood collection tube with adjustable dry-wet separation and blood collection amount.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a dry-wet separation type blood collection tube comprises a tube body assembly, an inner ring body, an outer ring body, an air bag, a telescopic driving mechanism and a separation mechanism; 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 separation mechanism comprises an annular drainage plate, an annular telescopic pipe and an annular floating plate; the periphery of the lower end of the annular telescopic pipe is fixedly arranged on the periphery of the upper end of the inner ring body in a sealing way; the periphery of the upper end of the annular telescopic pipe is fixedly connected with the periphery of the lower end of the annular floating plate; the periphery of the upper end of the annular drainage plate 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 annular drainage plate is hermetically connected to the periphery of the upper end face of the annular floating plate; the annular drainage plate is of a conical structure with a small upper part and a big lower part; the annular closing plate and the annular drainage plate are enclosed to form a drainage cavity; 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.
The invention has the advantages of
The invention is additionally provided with the separation mechanism, realizes the dry-wet separation of blood collection, realizes the separation reflux path of the upper pipe body, the drainage cavity and the annular drainage groove, and realizes the dry-wet separation of liquid from the inner part of the inner ring body and the upper end of the upper pipe body; when the upper pipe body floats up and down, the annular drainage plate, the annular telescopic pipe and the annular floating plate can be driven to float up and down at the upper end of the inner ring body, so that liquid coming out of the upper end of the upper pipe body is discharged into the annular drainage groove from the annular drainage plate with a small upper part and a big lower part and a conical structure all the time, and the structure is more stable; 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 tube body, the liquid sequentially passes through the drainage cavity and the annular drainage groove along the annular drainage plate 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. 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.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of the upper separation mechanism 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 dry-wet separation type 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, an annular drainage plate 71 and a separation mechanism 7; 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; as shown in fig. 2, the separating mechanism 7 includes an annular flow guide plate 71, an annular telescopic pipe 73, and an annular floating plate 72; the periphery of the lower end of the annular telescopic pipe 73 is fixedly arranged on the periphery of the upper end of the inner ring body 3 in a sealing way; the periphery of the upper end of the annular telescopic pipe 73 is fixedly connected with the periphery of the lower end of the annular floating plate 72; the periphery of the upper end of the annular flow guide plate 71 is hermetically arranged on the outer side of the periphery of the upper end of the upper tube body 11, and the periphery of the lower end of the annular flow guide plate 71 is hermetically connected to the periphery of the upper end face of the annular floating plate 72; the annular drainage plate 71 is of a conical structure with a small upper part and a big lower part; the annular closing plate 21 and the annular drainage plate 71 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. 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; when the upper tube body 11 floats up and down, the annular drainage plate 71, the annular telescopic tube 73 and the annular floating plate 72 can be driven to float up and down together at the upper end of the inner ring body 3, so that liquid coming out of the upper end of the upper tube body 11 is discharged into the annular drainage groove 23 from the annular drainage plate 71 with a small upper part and a large lower part, and the structure is more stable; in general, when 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 pollutes parts inside the inner ring 3, in the present invention, the periphery of the upper end of the annular flow guide plate 71 is hermetically installed outside the periphery of the upper end of the upper tube 11, the periphery of the lower end of the annular flow guide plate 71 is hermetically installed around the upper end surface of the inner ring 3, and the annular flow guide plate 71 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 annular flow guide plate 71 enclose the flow guide cavity 211, and the periphery of the flow guide cavity 211 is communicated with the periphery of the annular flow guide groove 23, so as to form a separation backflow path of the upper tube, the flow guide cavity and the annular flow guide groove, and when the liquid is thrown out of the upper end of the upper tube 11 due to inertia force, the liquid is sequentially passed through the flow guide cavity 211, and then flows through the annular flow guide plate 71 in a tapered structure with a small upper part and a large lower part, 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.
Claims (5)
1. A dry-wet separation type 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 a separation mechanism; 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 separation mechanism comprises an annular drainage plate, an annular telescopic pipe and an annular floating plate; the periphery of the lower end of the annular telescopic pipe is fixedly arranged on the periphery of the upper end of the inner ring body in a sealing way; the periphery of the upper end of the annular telescopic pipe is fixedly connected with the periphery of the lower end of the annular floating plate; the periphery of the upper end of the annular drainage plate 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 annular drainage plate is hermetically connected to the periphery of the upper end face of the annular floating plate; the annular drainage plate is of a conical structure with a small upper part and a big lower part; the annular closing plate and the annular drainage plate are enclosed to form a drainage cavity; 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; 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; the telescopic driving mechanism comprises a driving screw rod, a driving block, a butt 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.
2. The tube according to claim 1, 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.
3. The tube according to claim 1, wherein the connecting rod is an L-shaped structure.
4. The 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.
5. The tube according to claim 1, wherein the longitudinal section of the annular sealing plate has an inverted U-shaped configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896754.2A CN110575185B (en) | 2019-09-23 | 2019-09-23 | Dry-wet separation type blood collection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896754.2A CN110575185B (en) | 2019-09-23 | 2019-09-23 | Dry-wet separation type blood collection tube |
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| Publication Number | Publication Date |
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| CN110575185A CN110575185A (en) | 2019-12-17 |
| CN110575185B true CN110575185B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910896754.2A Active CN110575185B (en) | 2019-09-23 | 2019-09-23 | Dry-wet separation type blood collection tube |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596928A (en) * | 2016-12-02 | 2017-04-26 | 杭州康永生物技术有限公司 | Vacuum blood sampling diagnosis test tube |
| CN108318291A (en) * | 2018-01-09 | 2018-07-24 | 成都菲斯普科技有限公司 | Automatic sampling mechanism for hospital laboratory blood analysis instrument |
| CN108535050A (en) * | 2018-03-30 | 2018-09-14 | 江苏科华医疗器械科技有限公司 | One kind formula of being slidably connected takes liquid centrifuge tube |
| CN108525866A (en) * | 2018-03-30 | 2018-09-14 | 江苏科华医疗器械科技有限公司 | Liquid device is adopted in a kind of centrifugation based on eccentric wheel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4621865B2 (en) * | 1999-12-13 | 2011-01-26 | アークレイ株式会社 | Body fluid measuring device |
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2019
- 2019-09-23 CN CN201910896754.2A patent/CN110575185B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596928A (en) * | 2016-12-02 | 2017-04-26 | 杭州康永生物技术有限公司 | Vacuum blood sampling diagnosis test tube |
| CN108318291A (en) * | 2018-01-09 | 2018-07-24 | 成都菲斯普科技有限公司 | Automatic sampling mechanism for hospital laboratory blood analysis instrument |
| CN108535050A (en) * | 2018-03-30 | 2018-09-14 | 江苏科华医疗器械科技有限公司 | One kind formula of being slidably connected takes liquid centrifuge tube |
| CN108525866A (en) * | 2018-03-30 | 2018-09-14 | 江苏科华医疗器械科技有限公司 | Liquid device is adopted in a kind of centrifugation based on eccentric wheel |
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| CN110575185A (en) | 2019-12-17 |
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