CN114632566A - Self-suction position-variable liquid-transferring blood sampling device - Google Patents
Self-suction position-variable liquid-transferring blood sampling device Download PDFInfo
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- CN114632566A CN114632566A CN202210337558.3A CN202210337558A CN114632566A CN 114632566 A CN114632566 A CN 114632566A CN 202210337558 A CN202210337558 A CN 202210337558A CN 114632566 A CN114632566 A CN 114632566A
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- pipette
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- 238000010241 blood sampling Methods 0.000 title claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 49
- 239000008280 blood Substances 0.000 claims description 12
- 210000004369 blood Anatomy 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 3
- 229920001477 hydrophilic polymer Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a self-priming position variable type liquid-transferring and blood-sampling device which comprises a connecting air bag, an external ring sleeve, a lower extension pipe body, a pipette, a blood-sampling pipette and a self-priming position adjusting mechanism, wherein the connecting air bag is connected with the external ring sleeve; the floating ring body floats up and down to drive the outer positioning ring to move up and down, so that the movable sealing protrusion floats up and down on the outer side of the periphery of the blood sampling suction pipe, the movable sealing protrusion can float up and down to be in sealing contact with the outer side of the upper vent hole or the outer side of the lower vent hole of the blood sampling suction pipe, two sealing choices can be realized, when the movable sealing protrusion is in sealing contact with the outer side of the upper vent hole, a blood sampling column in the blood sampling suction pipe is sucked to the lower vent hole to stop, and when the movable sealing protrusion is in sealing contact with the outer side of the lower vent hole, the blood sampling column in the blood sampling suction pipe is sucked to the upper vent hole to stop, so that two different structural choices of blood sampling ranges are formed, and the use is flexible.
Description
Technical Field
The invention relates to a self-suction position-variable liquid-transferring blood sampling device.
Background
At present, an existing pipette is a common tool used in medical departments such as hospitals for analyzing liquid, and generally comprises a top air bag, an external ring sleeve, a pipette and a capillary tube, wherein the external ring sleeve is installed at the lower end of the top air bag, the pipette is installed in the external ring sleeve, the lower end of the pipette extends to the outside of the lower end of the external ring sleeve, the capillary tube is inserted into the lower end of the pipette, and an air vent is formed in one side of the capillary tube, so that blood can be collected by capillary action after the capillary tube contacts the blood and can automatically rise to the air vent in the capillary tube, then the blood is dripped into diluent by extrusion of the air bag, the diluent is dripped into the diluent, and the subsequent operations such as pipetting and the like are performed by extruding and expanding the air bag; however, such a capillary tube can only collect blood in one range, and cannot be adjusted to achieve the purpose of two ranges, so that the flexibility of the device is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: provided is a self-suction position-variable liquid-transferring blood-sampling device with which the amount of blood-sampling can be conveniently adjusted.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a self-suction position variable type liquid-transferring and blood-collecting device comprises a connecting air bag, an external ring sleeve, a lower extension pipe body, a pipette, a blood-collecting suction pipe and a self-suction position adjusting mechanism; the connecting air bag is arranged above the middle of the external ring sleeve; the lower end of the connecting air bag is provided with a lower extension pipe body, and the lower end of the lower extension pipe body extends and is fixedly arranged in the middle of the upper part inside the external ring sleeve; the pipette is arranged in the middle of the inside of the external ring sleeve and is positioned below the lower pipe body; the lower end of the lower extension pipe body, the upper end of the pipette and the inner side of the periphery of the external ring sleeve form a closed cavity; the lower end of the pipette extends to the lower part of the external ring sleeve; a blood sampling suction pipe is fixedly inserted into the lower end of the pipette; an upper vent hole and a lower vent hole are respectively arranged at the upper part and the lower part of one side of the blood sampling suction pipe; the self-suction position adjusting mechanism comprises a movable sealing convex, an outer positioning ring and a floating ring body; the outer positioning ring is sleeved on the outer side of the periphery of the blood sampling suction pipe; a plurality of movable sealing bulges are uniformly arranged on the periphery of the inner side of the outer positioning ring; the movable sealing convex seal is abutted against the outer side of the upper vent hole or the lower vent hole; a floating ring body is arranged above the outer side of the periphery of the outer positioning ring; the upper end of the floating ring body is vertically and slidably installed at the lower end of the pipette.
Furthermore, rotary clamping blocks are respectively arranged on two sides of the outer positioning ring; an annular clamping groove is formed in the periphery of the lower end of the floating ring body; the outer positioning ring is rotationally clamped on the annular clamping groove at the periphery of the lower end of the floating ring body through the rotary clamping blocks at two sides.
Furthermore, the self-suction position adjusting mechanism also comprises a positioning sleeve, a guide rod and a driving ring body; a positioning sleeve is fixedly arranged on the periphery of the lower end of the pipette; two sides of the upper end of the floating ring body are respectively provided with a guide rod; a guide groove is respectively arranged in each of the two sides of the lower end of the positioning sleeve; the upper ends of the guide rods are respectively inserted into the guide grooves in a sliding manner; the outer side of the periphery of the floating ring body is provided with an external thread ring surface, and a driving ring body is screwed on the external thread ring surface; the upside of drive ring body rotates the outside of joint in the all around of position sleeve.
Furthermore, an abutting elastic body is arranged in each guide groove; the upper ends of the guide rods are respectively elastically abutted against the lower ends of the abutting elastic bodies in the guide grooves.
Furthermore, the self-suction position adjusting mechanism also comprises an extension rod and an adjusting ring body; two extending rods are respectively installed on two sides of the upper end of the driving ring body; the upper ends of the extension rods are connected with an adjusting ring body together; the adjusting ring body is rotatably clamped on the outer sides of the periphery of the positioning sleeve.
Furthermore, rotary positioning blocks are respectively arranged on two sides of the interior of the adjusting ring body; positioning ring grooves are formed in the outer sides of the peripheries of the positioning sleeves; the adjusting ring body is rotatably clamped on the positioning ring grooves on the outer sides of the periphery of the positioning sleeve through the rotary positioning blocks on two sides of the adjusting ring body.
Furthermore, an upper connecting ring body is arranged around the lower end of the lower extension pipe body; the peripheral outer side of the upper connecting ring body is fixed on the peripheral inner side of the external ring sleeve; a liquid storage ring body is arranged on the outer side of the periphery of the upper end of the pipette; the outer side of the periphery of the liquid storage ring body is fixed on the inner side of the periphery of the external ring sleeve; the upper connecting ring body around the lower extension pipe body, the liquid storage ring body around the pipette and the external ring are encircled to form an airtight cavity.
Further, the pipette is made of a glass tube or a hydrophilic polymer material.
Further, the blood collection suction tube is a capillary blood collection tube.
Further, the movable sealing protrusion is made of an elastic rubber material.
The invention has the following beneficial effects:
1. the floating ring body floats up and down to drive the outer positioning ring to move up and down, so that the movable sealing protrusion floats up and down on the outer side of the periphery of the blood sampling suction pipe, the movable sealing protrusion can float up and down to be in sealing contact with the outer side of the upper vent hole or the outer side of the lower vent hole of the blood sampling suction pipe, two sealing choices can be realized, when the movable sealing protrusion is in sealing contact with the outer side of the upper vent hole, a blood sampling column in the blood sampling suction pipe is sucked to the lower vent hole to stop, and when the movable sealing protrusion is in sealing contact with the outer side of the lower vent hole, the blood sampling column in the blood sampling suction pipe is sucked to the upper vent hole to stop, so that two different structural choices of blood sampling ranges are formed, and the use is flexible.
2. The outer positioning ring is rotatably clamped on the annular clamping grooves at the periphery of the lower end of the floating ring body through the rotary clamping blocks at two sides, so that the plurality of movable sealing protrusions can be driven to rotate around the outer side of the blood sampling suction tube, different movable sealing protrusions can be adjusted to abut against the outer sides of the upper vent hole or the lower vent hole, the movable sealing protrusions at different circumferential positions can be replaced to abut against the outer sides of the upper vent hole or the lower vent hole under the condition of poor sealing effect, and the use is more flexible and convenient.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is an enlarged schematic view of the pipette, the blood sampling pipette, and the self-priming position adjusting mechanism according to the present invention.
Fig. 3 is a partially enlarged view of the upper end of one side of fig. 2 according to the present invention.
FIG. 4 is a partial enlarged view of the lower end of FIG. 2 according to the present invention.
FIG. 5 is a partial enlarged view of the movable sealing protrusion and the blood collection straw according to 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 5, a self-priming position-variable liquid-transferring and blood-collecting device comprises a connecting air bag 1, an external ring sleeve 3, a lower pipe body 2, a pipette 4, a blood-collecting pipette 5 and a self-priming position adjusting mechanism 6; the connecting air bag 1 is arranged above the middle of the external ring sleeve 3; the lower end of the connecting air bag 1 is provided with a lower extension pipe body 2, and the lower end of the lower extension pipe body 2 extends and is fixedly arranged in the middle of the upper part inside the external ring sleeve 3; the pipette 4 is arranged in the middle of the inner part of the external ring sleeve 3 and is positioned below the lower pipe body 2; the lower end of the lower extension pipe body 2, the upper end of the pipette 4 and the inner side of the periphery of the external ring sleeve 3 form a closed cavity 31; the lower end of the pipette 4 extends to the lower part of the external ring sleeve 3; a blood sampling suction pipe 5 is fixedly inserted into the lower end of the pipette 4; an upper vent hole 52 and a lower vent hole 51 are respectively arranged at the upper part and the lower part of one side of the blood sampling suction pipe 5; the self-suction position adjusting mechanism 6 comprises a movable sealing protrusion 61, an outer positioning ring 62 and a floating ring body 63; the outer positioning ring 62 is sleeved on the outer side of the periphery of the blood collecting straw 5; a plurality of movable sealing protrusions 61 are uniformly arranged on the periphery of the inner side of the outer positioning ring 62; the movable sealing projection 61 is in sealing contact with the outer side of the upper vent hole 52 or the lower vent hole 51; a floating ring body 63 is arranged above the peripheral outer side of the outer positioning ring 62; the upper end of the floating ring 63 is slidably mounted at the lower end of the pipette 4.
As shown in fig. 1 to 5, in order to realize that the plurality of movable sealing protrusions 61 are in sealing contact with the outer sides of the upper vent hole 52 or the lower vent hole 51 to realize the wheel movement adjustment, further, two sides of the outer positioning ring 62 are respectively provided with a rotating clamping block 621; an annular clamping groove 633 is formed around the lower end of the floating ring body 63; the outer positioning ring 62 is rotatably clamped to the annular clamping groove 633 at the periphery of the lower end of the floating ring body 63 through the rotary clamping blocks 621 at the two sides.
As shown in fig. 1 to 5, in order to improve the convenience of driving, further, the self-priming position adjusting mechanism 6 further includes a positioning sleeve 67, a guide rod 632, and a driving ring 64; a positioning sleeve 67 is fixedly arranged around the lower end of the pipette 4; two sides of the upper end of the floating ring body 63 are respectively provided with a guide rod 632; two guide grooves 671 are respectively arranged in the two sides of the lower end of the positioning sleeve 67; the upper ends of the guide rods 632 are respectively inserted into the guide grooves 671 in a sliding manner; an external thread ring surface 631 is arranged on the outer side of the periphery of the floating ring body 63, and a driving ring body 64 is screwed on the external thread ring surface 631; the upper side of the driving ring body 64 is rotatably clamped on the peripheral outer side of the positioning sleeve 67. Further, an abutting elastic body 68 is respectively arranged in the guide groove 671; the upper ends of the guide rods 632 elastically abut against the lower ends of the abutting elastic bodies 68 in the guide grooves 671, respectively. Further, the self-priming position adjusting mechanism 6 further comprises an extension rod 65 and an adjusting ring body 66; two extension rods 65 are respectively arranged on two sides of the upper end of the driving ring body 64; the upper ends of the extension rods 65 are connected with an adjusting ring body 66; the adjusting ring body 66 is rotatably clamped on the outer side of the periphery of the positioning sleeve 67. Further, two sides of the inside of the adjusting ring body 66 are respectively provided with a rotary positioning block 661; a positioning ring groove 672 is formed in the outer side of the periphery of the positioning sleeve 67; the adjusting ring body 66 is rotatably clamped on a positioning ring groove 672 on the outer side of the periphery of the positioning sleeve 67 through rotating positioning blocks 661 on the two sides of the adjusting ring body.
As shown in fig. 1 to 5, it is further preferable that an upper connection ring body 21 is provided around the lower end of the lower pipe body 2; the peripheral outer side of the upper connecting ring body 21 is fixed on the peripheral inner side of the external ring sleeve 3; a liquid storage ring body 41 is arranged on the outer side of the periphery of the upper end of the pipette 4; the peripheral outer side of the liquid storage ring body 41 is fixed on the peripheral inner side of the external ring sleeve 3; the upper connecting ring body 21 around the lower extension pipe body, the liquid storage ring body 41 around the pipette and the external ring sleeve 3 enclose a closed cavity 21. Further, the pipette 4 is made of a glass tube or a hydrophilic polymer material. Further, the blood collection pipette 5 is a capillary blood collection tube. Further, the moving seal projection 61 is made of an elastic rubber material.
According to the invention, the floating ring body 63 floats up and down to drive the outer positioning ring 62 to move up and down, so that the movable sealing protrusion 61 floats up and down on the outer side of the periphery of the blood sampling suction pipe 5, the movable sealing protrusion 61 can float up and down to be in sealing contact with the outer side of the upper vent hole 52 or the lower vent hole 51 of the blood sampling suction pipe 5, two sealing choices can be realized, when the movable sealing protrusion 61 is in sealing contact with the outer side of the upper vent hole 52, a blood sampling column in the blood sampling suction pipe 5 is sucked to the lower vent hole 51 and stopped, and when the movable sealing protrusion 61 is in sealing contact with the outer side of the lower vent hole 51, the blood sampling column in the blood sampling suction pipe 5 is sucked to the upper vent hole 52 and stopped, so that two different structural choices of blood sampling ranges are formed, and the use is flexible.
The outer positioning ring 62 is rotatably clamped on the annular clamping groove 633 at the periphery of the lower end of the floating ring body 63 through the rotary clamping blocks 621 at the two sides, so that the plurality of movable sealing protrusions 61 can be driven to rotate around the outer side of the blood sampling suction tube 5, different movable sealing protrusions 5 can be adjusted to be in sealing abutting connection with the outer sides of the upper vent hole 52 or the lower vent hole 51, the movable sealing protrusions 61 at different circumferential positions can be replaced to be in sealing abutting connection under the condition of poor sealing effect, and the use is more flexible and 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 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 (10)
1. A self-suction position variable type liquid-transferring and blood-collecting device is characterized by comprising a connecting air bag, an external ring sleeve, a lower extension pipe body, a pipette, a blood-collecting pipette and a self-suction position adjusting mechanism; the connecting air bag is arranged above the middle of the external ring sleeve; the lower end of the connecting air bag is provided with a lower extension pipe body, and the lower end of the lower extension pipe body extends and is fixedly arranged in the middle of the upper part inside the external ring sleeve; the pipette is arranged in the middle of the inside of the external ring sleeve and is positioned below the lower pipe body; the lower end of the lower extension pipe body, the upper end of the pipette and the inner side of the periphery of the external ring sleeve form a closed cavity; the lower end of the pipette extends to the lower part of the external ring sleeve; a blood sampling suction pipe is fixedly inserted into the lower end of the pipette; an upper vent hole and a lower vent hole are respectively arranged at the upper part and the lower part of one side of the blood sampling suction pipe; the self-suction position adjusting mechanism comprises a movable sealing convex, an outer positioning ring and a floating ring body; the outer positioning ring is sleeved on the outer side of the periphery of the blood sampling suction pipe; a plurality of movable sealing bulges are uniformly arranged on the periphery of the inner side of the outer positioning ring; the movable sealing convex seal is abutted against the outer side of the upper vent hole or the lower vent hole; a floating ring body is arranged above the outer side of the periphery of the outer positioning ring; the upper end of the floating ring body is vertically and slidably installed at the lower end of the pipette.
2. The self-priming variable position pipetting lancing device of claim 1, wherein the outer positioning ring is provided with a rotary catch block on each side; the periphery of the lower end of the floating ring body is provided with an annular clamping groove; the outer positioning ring is rotatably clamped on the annular clamping groove at the periphery of the lower end of the floating ring body through the rotary clamping blocks at two sides.
3. The self-priming position variable pipette blood collection device of claim 1, wherein the self-priming position adjustment mechanism further comprises a positioning sleeve, a guide rod, a drive ring body; a positioning sleeve is fixedly arranged on the periphery of the lower end of the pipette; two sides of the upper end of the floating ring body are respectively provided with a guide rod; a guide groove is respectively arranged in each of the two sides of the lower end of the positioning sleeve; the upper ends of the guide rods are respectively inserted into the guide grooves in a sliding manner; the outer side of the periphery of the floating ring body is provided with an external thread ring surface, and a driving ring body is screwed on the external thread ring surface; the upside of drive ring body rotates the outside of joint in the all around of position sleeve.
4. The self-priming variable position pipetting lancing device of claim 3, wherein one abutting elastic body is provided in each of the guide grooves; the upper ends of the guide rods are respectively elastically abutted against the lower ends of the abutting elastic bodies in the guide grooves.
5. The self-priming variable position pipetting lancing device of claim 3, wherein the self-priming position adjustment mechanism further comprises an extension rod and an adjustment ring; two extending rods are respectively arranged on two sides of the upper end of the driving ring body; the upper ends of the extension rods are connected with an adjusting ring body together; the adjusting ring body is rotatably clamped on the outer sides of the periphery of the positioning sleeve.
6. The self-priming position-variable pipetting blood collection device according to claim 5, wherein rotary positioning blocks are respectively arranged on two sides of the interior of the adjusting ring body; positioning ring grooves are formed in the outer sides of the peripheries of the positioning sleeves; the adjusting ring body is rotatably clamped on the positioning ring grooves on the outer sides of the periphery of the positioning sleeve through the rotary positioning blocks on two sides of the adjusting ring body.
7. The self-priming variable position pipetting lancing device of claim 1, wherein an upper connecting ring is disposed around the lower end of the lower tubular body; the peripheral outer side of the upper connecting ring body is fixed on the peripheral inner side of the external ring sleeve; a liquid storage ring body is arranged on the outer side of the periphery of the upper end of the pipette; the outer side of the periphery of the liquid storage ring body is fixed on the inner side of the periphery of the external ring sleeve; the upper connecting ring body around the lower extension pipe body, the liquid storage ring body around the pipette and the external ring are encircled to form an airtight cavity.
8. The self-priming variable position pipetting device of claim 1 wherein the pipette is made of glass tubing or hydrophilic polymer material.
9. The self-priming variable position pipetting lancing device of claim 1, wherein the lancing pipette is a capillary tube.
10. The self-priming variable position pipetting device of claim 1 wherein the mobile sealing projection is made of a resilient rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210337558.3A CN114632566A (en) | 2022-04-01 | 2022-04-01 | Self-suction position-variable liquid-transferring blood sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210337558.3A CN114632566A (en) | 2022-04-01 | 2022-04-01 | Self-suction position-variable liquid-transferring blood sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114632566A true CN114632566A (en) | 2022-06-17 |
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ID=81951387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210337558.3A Pending CN114632566A (en) | 2022-04-01 | 2022-04-01 | Self-suction position-variable liquid-transferring blood sampling device |
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|---|---|
| CN (1) | CN114632566A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016594A1 (en) * | 1980-04-30 | 1981-11-05 | Dieter 2000 Hamburg Roth | Pipette has squeeze bulb of flexible material - firmly bonded to pref. capillary tube to prevent suction by mouth |
| US4589421A (en) * | 1984-03-14 | 1986-05-20 | Syntex (U.S.A.) Inc. | Sampling device |
| CN208524875U (en) * | 2017-11-29 | 2019-02-22 | 三六三医院 | A kind of hemoglobin straw |
| CN110575184A (en) * | 2019-09-24 | 2019-12-17 | 江苏科华医疗器械科技有限公司 | Stepless regulation type range blood sampling device |
| CN111579301A (en) * | 2020-05-25 | 2020-08-25 | 江苏科华医疗器械科技有限公司 | Clamping type micro blood sampling device |
| CN113525944A (en) * | 2021-06-18 | 2021-10-22 | 安庆宜源石油机械配件制造有限责任公司 | Petroleum storage device |
-
2022
- 2022-04-01 CN CN202210337558.3A patent/CN114632566A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016594A1 (en) * | 1980-04-30 | 1981-11-05 | Dieter 2000 Hamburg Roth | Pipette has squeeze bulb of flexible material - firmly bonded to pref. capillary tube to prevent suction by mouth |
| US4589421A (en) * | 1984-03-14 | 1986-05-20 | Syntex (U.S.A.) Inc. | Sampling device |
| CN208524875U (en) * | 2017-11-29 | 2019-02-22 | 三六三医院 | A kind of hemoglobin straw |
| CN110575184A (en) * | 2019-09-24 | 2019-12-17 | 江苏科华医疗器械科技有限公司 | Stepless regulation type range blood sampling device |
| CN111579301A (en) * | 2020-05-25 | 2020-08-25 | 江苏科华医疗器械科技有限公司 | Clamping type micro blood sampling device |
| CN113525944A (en) * | 2021-06-18 | 2021-10-22 | 安庆宜源石油机械配件制造有限责任公司 | Petroleum storage device |
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Application publication date: 20220617 |