CN111579302B - Axial and radial floating micro blood sampling device - Google Patents
Axial and radial floating micro blood sampling device Download PDFInfo
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- CN111579302B CN111579302B CN202010447341.9A CN202010447341A CN111579302B CN 111579302 B CN111579302 B CN 111579302B CN 202010447341 A CN202010447341 A CN 202010447341A CN 111579302 B CN111579302 B CN 111579302B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1472—Devices not actuated by pressure difference
- G01N2001/149—Capillaries; Sponges
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- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The invention discloses an axial and radial floating micro-blood sampling device, which comprises a capillary blood sampling tube, a connecting tube, a positioning ring, a clamping ring column, a connecting ring, two arc floating plates, a radial elastomer and a contact plate, wherein the connecting tube is arranged on the connecting ring; according to the invention, the two arc-shaped floating plates are respectively arranged at two sides of the inner part of the lower end of the connecting pipe, the two arc-shaped floating plates are oppositely arranged and form the hoop structure, and the arc-shaped floating plates can radially move through the radial elastic body, so that capillary blood collection pipes with different pipe diameters can be inserted, and the flexibility of connecting the connecting pipe and the capillary blood collection pipes is greatly improved.
Description
Technical Field
The invention relates to an axial and radial floating micro-blood sampling device.
Background
The trace blood collection tube is a common tool for medical departments such as hospitals to analyze blood, and is made of glass tubes with smaller inner diameter and smaller length and two open ends and communicated with each other, one end of the trace blood collection tube is contacted with the blood to be collected when the blood is collected, the blood to be collected automatically enters the interior of the trace blood collection tube by utilizing a capillary principle, but the trace blood collection tube with smaller length is generally inconvenient to send into the liquid to be collected, and in order to facilitate the operation, the conventional elongated connecting tube is increased, the trace blood collection tube with smaller length is arranged at the lower end of the elongated connecting tube, so that the trace blood collection tube can be conveniently stretched into the container to collect the blood, but the connection between the trace blood collection tube with smaller length and the elongated connecting tube is generally bonded by glue, so that the structure is not firm, and the detachment between the trace blood collection tube with smaller length and the elongated connecting tube is inconvenient for recovery and replacement of products; in addition, the capillary blood collection tubes with different tube diameters are matched with the connecting tubes with different tube diameters, so that the mutual matching connectivity of the capillary blood collection tubes and the connecting tubes is not very flexible.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the micro blood sampling device can be connected in a radial floating mode, is stable in structure and convenient to detach.
In order to solve the problems, the invention adopts the following technical scheme:
an axial and radial floating micro-blood sampling device comprises a capillary blood sampling tube, a connecting tube, a positioning ring, a clamping ring column, a connecting ring, two arc floating plates, a radial elastomer and a contact plate; the connecting pipe is of a structure with a hollow interior and two open ends; positioning rings are arranged on the outer sides of the periphery of the lower end of the connecting pipe; two arc-shaped floating plates are respectively arranged at two sides of the inner part of the lower end of the connecting pipe; the two arc-shaped floating plates are oppositely arranged and form a hoop structure; a plurality of radial elastic bodies are respectively arranged on the opposite outer sides of the two arc-shaped floating plates; the radial elastic body is connected between the outer side of the arc-shaped floating plate and the side wall inside the lower end of the connecting pipe; the outer sides of the lower ends of the arc-shaped floating plates are respectively and vertically provided with a contact plate; the contact plate is positioned below the connecting pipe; the outer sides of the periphery of the positioning ring are provided with external thread ring surfaces; the connecting rings are arranged on the outer sides of the periphery of the middle of the capillary blood collection tube; the upper end of the capillary tube is inserted and connected between the two arc-shaped floating plates; the connecting rings on the outer sides of the periphery of the capillary blood collection tube are positioned on the lower side of the lower end face of the contact plate; the upper end of the clamping ring column is provided with an internal thread ring, and the inner side of the periphery of the lower end of the clamping ring column is provided with an abutting ring; the clamping ring column is rotationally connected to the outer sides of the periphery of the positioning ring through the internal thread ring; the clamping ring posts are positioned at the outer sides of the periphery of the lower part of the connecting pipe; the abutting ring is positioned below the connecting ring at the outer side of the periphery of the capillary blood sampling tube; when the clamping ring column rotates, the abutting ring drives the upper side of the connecting ring at the outer side of the periphery of the capillary blood collection tube to abut or be connected with the lower end face of the contact plate in a separating way.
Further, the outer sides around the upper end of the positioning ring are provided with limiting ring bodies.
Further, the device also comprises an upper floating abutting mechanism; the upper floating abutting mechanism comprises an upper driving ring, two abutting rods, a limiting plate and an abutting elastic body; two sides of the connecting pipe are respectively provided with a longitudinal channel; an upper floating slot is arranged on the outer side of the upper end of the longitudinal channel; a lower floating groove is formed in the inner side of the lower end of the longitudinal channel; a supporting rod is slidably arranged in each longitudinal channel; an upper floating plate is vertically arranged on the outer side of the upper end of the abutting rod; a lower abutting plate is vertically arranged on the inner side of the lower end of the abutting rod; the upper floating plate is positioned in the upper floating groove and extends to the outer side of the connecting pipe; the lower abutting plate is positioned in the lower floating groove and extends to the inner side of the connecting pipe; two sides of the connecting pipe are respectively provided with a limiting plate; the upper sides of the limiting plates are respectively provided with an abutting elastic body; the upper end of the abutting elastic body is elastically abutted to the lower side of the upper floating plate; the upper driving ring is arranged on the outer side around the upper end of the glass tube; the lower end of the upper driving ring is positioned on the upper side of the upper floating plate; the upper driving ring drives the upper floating plate to move up and down; the inner end of the lower abutting plate abuts against or is connected with the side part of the upper end of the capillary tube in a separated mode.
Further, an internal thread is arranged on the inner side of the upper driving ring; an external thread ring is arranged around the upper end of the glass tube; the upper driving ring is rotationally connected with an external thread ring around the upper end of the glass tube through an internal thread on the inner side; the lower side of the upper driving ring is provided with a pressing ring; the propping ring is propped against and connected to the upper end surface of the upper floating plate; the externally threaded ring is located above the upper floating groove.
Further, the limiting plate is located below the upper floating groove.
Further, the pressing ring is made of polytetrafluoroethylene material.
Further, polytetrafluoroethylene coatings are coated on the outer sides of the peripheries of the abutting rods.
The beneficial effects of the invention are that
1. According to the invention, the two arc-shaped floating plates are respectively arranged at two sides of the inner part of the lower end of the connecting pipe, the two arc-shaped floating plates are oppositely arranged and form the hoop structure, and the arc-shaped floating plates can radially move through the radial elastic body, so that capillary blood collection pipes with different pipe diameters can be inserted, and the flexibility of connecting the connecting pipe and the capillary blood collection pipes is greatly improved.
2. The invention changes the traditional bonding mode of the capillary blood collection tube and the connecting tube, the invention fixes the capillary blood collection tube by the clamping locking mode, and the connecting ring on the outer side of the periphery of the capillary blood collection tube is driven to move upwards by the contact of the abutting ring by the rotation of the clamping ring column, so that the upper side of the connecting ring abuts against the lower end face of the connecting tube, thus the connecting ring is clamped and connected between the abutting ring and the lower end face of the connecting tube, the clamping locking connecting structure is realized, and the structure is stable and the disassembly is convenient.
3. In order to realize further downward movement of the capillary tube and extension of the collection distance, the invention is additionally provided with the upper floating abutting mechanism, the clamping ring column can be rotated downwards to enable the capillary tube to move downwards, meanwhile, the upper side of the connecting ring can be separated from the lower end face of the connecting pipe for a certain distance, the upper driving ring is rotated downwards at the moment, the upper driving ring abuts against the upper floating plate to move downwards in the upper floating groove, so that the abutting rod is driven to move downwards in the longitudinal channel, and finally, the lower abutting plate is driven to move downwards in the lower floating groove, so that the lower abutting plate abuts against the two sides of the upper end of the capillary tube after moving downwards, and the capillary tube is clamped between the lower abutting plate and the abutting ring at the moment, so that the collection distance of downward extension is further expanded, and the capillary tube is more flexible and changeable in use.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a connecting pipe according to the present invention.
FIG. 3 is a schematic top view of the connecting tube and arcuate floating plate of the present invention.
FIG. 4 is a schematic view of a partial enlarged structure of an arcuate floating plate, radial elastomer, contact plate of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, an axial and radial floating type micro-blood sampling device comprises a capillary blood sampling tube 1, a connecting tube 2, a positioning ring 4, a clamping ring column 3, a connecting ring 5, two arc-shaped floating plates 7, a radial elastic body 9 and a contact plate 8; the connecting pipe 2 is of a structure with a hollow interior and two open ends; the positioning rings 4 are arranged on the outer sides of the periphery of the lower end of the connecting pipe 2; two arc-shaped floating plates 7 are respectively arranged at two sides of the inner part of the lower end of the connecting pipe 2; the two arc-shaped floating plates 7 are oppositely arranged and form a hoop structure; a plurality of radial elastic bodies 9 are respectively arranged on the opposite outer sides of the two arc-shaped floating plates 7; the radial elastic body 9 is connected between the outer side of the arc-shaped floating plate 7 and the side wall inside the lower end of the connecting pipe 2; the outer sides of the lower ends of the arc-shaped floating plates 7 are respectively and vertically provided with a contact plate 8; the contact plate 8 is positioned below the connecting pipe 2; the outer sides of the periphery of the positioning ring 4 are provided with external thread ring surfaces; the connecting rings 5 are arranged on the outer sides of the periphery of the middle of the capillary blood collection tube 1; the upper end of the capillary tube 1 is inserted and connected between two arc-shaped floating plates 7; the connecting rings 5 on the outer sides of the periphery of the capillary tube 1 are positioned on the lower side of the lower end face of the contact plate 8; an inner thread ring 31 is arranged at the upper end of the clamping ring column 3, and an abutting ring 32 is arranged on the inner side around the lower end of the clamping ring column 3; the clamping ring column 3 is rotationally connected to the outer side of the periphery of the positioning ring 4 through an internal thread ring 31; the clamping ring posts 3 are positioned at the outer sides of the periphery of the lower part of the connecting pipe 2; the abutting ring 32 is positioned below the connecting ring 5 at the outer side of the periphery of the capillary tube 1; when the clamping ring column 3 rotates, the abutting ring 32 drives the upper side of the connecting ring 5 at the outer side of the periphery of the capillary tube 1 to abut or be separately connected with the lower end face of the contact plate 8.
As shown in fig. 1 to 4, it is further preferable that a limiting ring 41 is disposed on the outer side around the upper end of the positioning ring 4. In order to increase the distance of acquisition extension, it is further preferred to further include an upper floating abutment mechanism 6; the upper floating abutting mechanism 6 comprises an upper driving ring 64, two abutting rods 61, a limiting plate 67 and an abutting elastic body 68; two sides of the connecting pipe 2 are respectively provided with a longitudinal channel 21; an upper floating groove 22 is arranged on the outer side of the upper end of the longitudinal channel 21; a lower floating groove 23 is arranged on the inner side of the lower end of the longitudinal channel 21; a supporting rod 61 is slidably mounted in the longitudinal channel 21; an upper floating plate 62 is vertically arranged outside the upper end of the supporting rod 61; a lower abutting plate 63 is vertically arranged on the inner side of the lower end of the abutting rod 61; the upper floating plate 62 is positioned in the upper floating groove 23 and extends to the outer side of the connecting pipe 2; the lower abutting plate 63 is positioned in the lower floating groove 23 and extends to the inner side of the connecting pipe 2; two sides of the connecting pipe 2 are respectively provided with a limiting plate 67; the upper sides of the limiting plates 67 are respectively provided with an abutting elastic body 68; the upper end of the abutting elastic body 68 is elastically abutted against the lower side of the upper floating plate 62, so that the upward elastic restoring force is improved; the upper driving ring 64 is arranged on the outer side around the upper end of the glass tube 2; the lower end of the upper driving ring 64 is located at the upper side of the upper floating plate 62; the upper driving ring 64 drives the upper floating plate 62 to move up and down; the inner end of the lower abutment plate 63 abuts against or is separately connected to the upper end side of the capillary tube 1. Further preferably, the inner side of the upper driving ring 64 is provided with an internal thread; an external thread ring 65 is arranged around the upper end of the glass tube 2; the upper driving ring 64 is rotatably connected with an external thread ring 65 around the upper end of the glass tube through an internal thread on the inner side; the lower side of the upper driving ring 64 is provided with a pressing ring 66; the pressing ring 66 is pressed against and connected to the upper end surface of the upper floating plate 62; the externally threaded ring 65 is located above the upper floating groove 22. Further, the limiting plate 67 is located below the upper floating groove 22. Further, the pressing ring 66 is made of polytetrafluoroethylene material. Further, the outer circumference of the abutting rod 61 is coated with a polytetrafluoroethylene coating.
According to the invention, the two arc-shaped floating plates 7 are respectively arranged at two sides of the inner part of the lower end of the connecting pipe 2, the two arc-shaped floating plates 7 are oppositely arranged and form a hoop structure, and the arc-shaped floating plates 7 can radially move through the radial elastic body 9, so that capillary blood collection tubes 1 with different pipe diameters can be inserted, and the flexibility of connecting the connecting pipe 2 and the capillary blood collection tubes 1 is greatly improved; the invention changes the traditional bonding mode of the capillary tube 1 and the connecting tube 2, the invention is fixed in a clamping and locking mode, the abutting ring 32 is contacted and drives the connecting ring 5 at the outer side of the periphery of the capillary tube 1 to move upwards through the rotation of the clamping ring column 3, so that the upper side of the connecting ring 5 abuts against the lower end face of the connecting tube 2, the connecting ring 5 is clamped and connected between the abutting ring 32 and the lower end face of the connecting tube 2, the clamping and locking connecting structure is realized, and the structure is stable and convenient to detach. In order to realize that the capillary tube 1 can move downwards further and extend the collection distance, the invention adds the upper floating abutting mechanism 6, firstly, the clamping ring column 3 can be rotated downwards, so that the capillary tube 1 moves downwards, meanwhile, the upper side of the connecting ring 5 can be separated from the lower end face of the connecting tube 2 by a certain distance, at the moment, the upper driving ring 64 is rotated downwards, the upper driving ring 64 presses the upper floating plate 62 to move downwards in the upper floating groove 22, thereby driving the abutting rod 61 to move downwards in the longitudinal channel 21, finally, the lower abutting plate 63 is driven to move downwards in the lower floating groove 23, so that the lower abutting plate 63 abuts against the two sides of the upper end of the capillary tube 1 after moving downwards, at the moment, the capillary tube 1 is clamped between the lower abutting plate 63 and the abutting ring 32, the collection distance extending downwards is further expanded, and the capillary tube is more flexible and variable in use.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The axial and radial floating micro blood sampling device is characterized by comprising a capillary blood sampling tube, a connecting tube, a positioning ring, a clamping ring column, a connecting ring, two arc floating plates, a radial elastomer and a contact plate; the connecting pipe is of a structure with a hollow interior and two open ends; positioning rings are arranged on the outer sides of the periphery of the lower end of the connecting pipe; two arc-shaped floating plates are respectively arranged at two sides of the inner part of the lower end of the connecting pipe; the two arc-shaped floating plates are oppositely arranged and form a hoop structure; a plurality of radial elastic bodies are respectively arranged on the opposite outer sides of the two arc-shaped floating plates; the radial elastic body is connected between the outer side of the arc-shaped floating plate and the side wall inside the lower end of the connecting pipe; the outer sides of the lower ends of the arc-shaped floating plates are respectively and vertically provided with a contact plate; the contact plate is positioned below the connecting pipe; the outer sides of the periphery of the positioning ring are provided with external thread ring surfaces; the connecting rings are arranged on the outer sides of the periphery of the middle of the capillary blood collection tube; the upper end of the capillary tube is inserted and connected between the two arc-shaped floating plates; the connecting rings on the outer sides of the periphery of the capillary blood collection tube are positioned on the lower side of the lower end face of the contact plate; the upper end of the clamping ring column is provided with an internal thread ring, and the inner side of the periphery of the lower end of the clamping ring column is provided with an abutting ring; the clamping ring column is rotationally connected to the outer sides of the periphery of the positioning ring through the internal thread ring; the clamping ring posts are positioned at the outer sides of the periphery of the lower part of the connecting pipe; the abutting ring is positioned below the connecting ring at the outer side of the periphery of the capillary blood sampling tube; when the clamping ring column rotates, the abutting ring drives the upper side of the connecting ring at the outer side of the periphery of the capillary blood collection tube to abut or be connected with the lower end face of the contact plate in a separating way; the device also comprises an upper floating abutting mechanism; the upper floating abutting mechanism comprises an upper driving ring, two abutting rods, a limiting plate and an abutting elastic body; two sides of the connecting pipe are respectively provided with a longitudinal channel; an upper floating slot is arranged on the outer side of the upper end of the longitudinal channel; a lower floating groove is formed in the inner side of the lower end of the longitudinal channel; a supporting rod is slidably arranged in each longitudinal channel; an upper floating plate is vertically arranged on the outer side of the upper end of the abutting rod; a lower abutting plate is vertically arranged on the inner side of the lower end of the abutting rod; the upper floating plate is positioned in the upper floating groove and extends to the outer side of the connecting pipe; the lower abutting plate is positioned in the lower floating groove and extends to the inner side of the connecting pipe; two sides of the connecting pipe are respectively provided with a limiting plate; the upper sides of the limiting plates are respectively provided with an abutting elastic body; the upper end of the abutting elastic body is elastically abutted to the lower side of the upper floating plate; the upper driving ring is arranged on the outer side around the upper end of the connecting pipe; the lower end of the upper driving ring is positioned on the upper side of the upper floating plate; the upper driving ring drives the upper floating plate to move up and down; the inner end of the lower abutting plate abuts against or is connected with the side part of the upper end of the capillary tube in a separated mode.
2. The axial and radial floating micro-blood collection device according to claim 1, wherein a limiting ring body is arranged on the outer side around the upper end of the positioning ring.
3. The axial and radial floating micro-blood collection device according to claim 1, wherein the inner side of the upper drive ring is provided with an internal thread; an external thread ring is arranged around the upper end of the connecting pipe; the upper driving ring is rotationally connected with an external thread ring around the upper end of the connecting pipe through an internal thread on the inner side; the lower side of the upper driving ring is provided with a pressing ring; the propping ring is propped against and connected to the upper end surface of the upper floating plate; the externally threaded ring is located above the upper floating groove.
4. The axial and radial floating micro-blood collection device of claim 1, wherein the limiting plate is located below the upper floating slot.
5. The axial and radial floating micro-blood collection device of claim 3, wherein the pressure ring is made of polytetrafluoroethylene material.
6. The axial and radial floating micro-blood collection device according to claim 1, wherein the outer sides of the circumference of the abutment rod are coated with a polytetrafluoroethylene coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447341.9A CN111579302B (en) | 2020-05-25 | 2020-05-25 | Axial and radial floating micro blood sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447341.9A CN111579302B (en) | 2020-05-25 | 2020-05-25 | Axial and radial floating micro blood sampling device |
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| CN111579302A CN111579302A (en) | 2020-08-25 |
| CN111579302B true CN111579302B (en) | 2023-04-25 |
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| CN202010447341.9A Active CN111579302B (en) | 2020-05-25 | 2020-05-25 | Axial and radial floating micro blood sampling device |
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| CN111991637B (en) * | 2020-08-31 | 2021-07-06 | 中国人民解放军总医院第一医学中心 | Dialysis auxiliary assembly for nephrology department |
| CN112412351A (en) * | 2020-11-29 | 2021-02-26 | 江苏力克石油机械有限公司 | Oil production pipe anti-disengaging structure |
| CN114165169B (en) * | 2021-12-10 | 2023-06-27 | 江苏和信石油机械有限公司 | Interlocking type radial adjustable drill rod for rescue |
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