CN216394116U - Dropping liquid tube for skin prick - Google Patents
Dropping liquid tube for skin prick Download PDFInfo
- Publication number
- CN216394116U CN216394116U CN202122557663.1U CN202122557663U CN216394116U CN 216394116 U CN216394116 U CN 216394116U CN 202122557663 U CN202122557663 U CN 202122557663U CN 216394116 U CN216394116 U CN 216394116U
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- liquid
- skin
- catheter
- tube
- dropping
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- 239000007788 liquid Substances 0.000 title claims abstract description 92
- 230000009471 action Effects 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 24
- 238000005452 bending Methods 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 210000003491 skin Anatomy 0.000 description 18
- 238000005192 partition Methods 0.000 description 8
- 239000013566 allergen Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- NTYJJOPFIAHURM-UHFFFAOYSA-N Histamine Chemical compound NCCC1=CN=CN1 NTYJJOPFIAHURM-UHFFFAOYSA-N 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 210000000245 forearm Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010002198 Anaphylactic reaction Diseases 0.000 description 1
- 206010003399 Arthropod bite Diseases 0.000 description 1
- 206010015150 Erythema Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 206010043189 Telangiectasia Diseases 0.000 description 1
- 208000024780 Urticaria Diseases 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000000172 allergic effect Effects 0.000 description 1
- 208000030961 allergic reaction Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 208000003455 anaphylaxis Diseases 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000004856 capillary permeability Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 231100000321 erythema Toxicity 0.000 description 1
- 229960001340 histamine Drugs 0.000 description 1
- 210000003630 histaminocyte Anatomy 0.000 description 1
- 230000007803 itching Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010181 skin prick test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 208000009056 telangiectasis Diseases 0.000 description 1
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Abstract
The utility model provides a dropping liquid tube for skin prick, relates to the technical field of medical detection, mainly aims to solve the problem that the dropping amount of prick liquid in the traditional technology is large, and provides a dropping liquid tube for skin prick, which can accurately control the dropping amount of prick liquid and reduce waste. This dropping liquid pipe for skin prick includes: the catheter comprises a catheter body, a first end and a second end, wherein the catheter body extends outwards to form the first end and the second end; and the liquid taking assembly is connected with the pipe body through the second end, and can drive out gas in the liquid guide pipe when the liquid taking assembly is under the action of external force.
Description
Technical Field
The utility model relates to the technical field of medical detection, in particular to a dropping liquid tube for skin prick.
Background
Skin prick test is a common allergen detection method, in which a small amount of highly purified allergen liquid is dropped on the forearm of a patient, and then a prick needle is used to prick the surface layer of the skin gently. If the patient is allergic to the allergen, a red and swollen mass similar to mosquito bites appears at the prick part within fifteen minutes, and an itching reaction appears, or the color changes. The principle is that when some kind of allergen enters the skin, a patient who has immediate allergic reaction to some substance can specifically cause the degranulation of mast cells in the skin, release active substances such as histamine and the like, and cause local telangiectasia (erythema), capillary permeability is enhanced (edema, wheal), and the positive person indicates the allergy to the antigen. In the operation process, corresponding allergen liquid needs to be dripped on the forearm of a patient, in the operation process, the amount of the dripped liquid is different under the influence of operation, so that the accuracy of a detection result is influenced, and meanwhile, the dripping of excessive allergen liquid can aggravate anaphylactic reaction and cause the waste of corresponding pricking liquid.
In order to solve the above problems, it is desirable to provide a dropping tube structure which is easy to operate and can control the amount of a prick drop well.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a dropping liquid tube for skin prick, which aims to solve the technical problems that the prick liquid is not accurate enough and is easy to waste in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a dropping liquid tube for skin prick, comprising: the catheter comprises a catheter body, a first end and a second end, wherein the catheter body extends outwards to form the first end and the second end; and the liquid taking assembly is connected with the pipe body through the second end, and can drive out gas in the liquid guide pipe when the liquid taking assembly is under the action of external force.
Because the axis of the catheter is of a nonlinear structure, the length of the catheter is larger than that of the catheter body, so that a channel for liquid to flow is longer during operation, an operator can observe the moving speed of liquid more accurately during use, the dropping amount of the pricking liquid is effectively adjusted, and the dropping amount of the pricking liquid can be kept consistent during multiple operations.
On the basis of the technical scheme, the utility model can be further improved as follows.
As a further development of the utility model, the catheter comprises at least one bending unit.
This unit of bending can help improving the length of catheter greatly to make the removal that the same amount of prick liquid of absorption can be in the pipe shaft more obvious, make things convenient for the accurate operation of operating personnel, help controlling the amount of dripping of prick liquid.
As a further development of the utility model, the bending unit comprises an at least partially curved structure.
As a further improvement of the utility model, the length of the bending unit is not more than half of the length of the tube body.
As a further improvement of the utility model, the bending unit is of an arc or Z-shaped structure.
A variety of different bending unit shapes may be provided by the above structure to help extend the catheter length.
As a further development of the utility model, the axes of the first end and the second end do not coincide.
The dislocation design is helpful to operation and avoids blocking the sight of the operator.
As a further improvement of the present invention, the liquid taking assembly is a rubber cap, and the rubber cap is sleeved on the outer periphery of the second end.
This rubber cap is hollow structure, can extrude its inside gas to in the drain pipe when it receives external force extrusion to gas outgoing in the drain pipe.
As a further improvement of the utility model, the liquid taking assembly comprises a fixed sleeve, a push rod and an elastic extrusion piece: the fixed cover is established the periphery side of second end, the elasticity extruded article is located in the fixed cover, the one end of push rod is worn to establish in the fixed cover and with fixed cover sealing fit, the push rod can move and extrude under the exogenic action second end direction the elasticity extruded article.
The push rod can extrude the elastic extrusion piece under the action of external force, so that the gas between the fixed sleeve and the elastic extrusion piece is extruded into the liquid guide pipe, and the gas in the liquid guide pipe is discharged.
As a further improvement of the utility model, the end part of the push rod is provided with a rubber piston; and/or the resilient extrusion is a rubber gasket.
Above-mentioned structure not only helps realizing the sealed cooperation between push rod and the fixed cover, can also guarantee simultaneously that this elastic extrusion spare has better elastic deformation and resilience.
As a further improvement of the utility model, the rubber gasket is of a spherical or ellipsoidal structure.
Compared with the prior art, the dropping liquid tube for skin prick provided by the preferred embodiment of the utility model comprises a tube body and a liquid taking assembly, wherein the amount of single liquid taking is controlled by the liquid taking assembly, and the amount of single liquid squeezing is influenced by the liquid guiding tube: the liquid taking volume is the same, the liquid guide pipe can be lengthened to help an operator to observe the suction or extrusion amount of the liquid, the operator is helped to control the operation precision, the amount of the liquid dripped in a single time is relatively accurate, and waste is avoided; meanwhile, the accurate amount of the dripped liquid can ensure the accuracy and reliability of the detection result.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a first embodiment of a dropper for skin pricking of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the use of a first embodiment of a dropper for skin pricking of the present invention;
FIG. 4 is a schematic view showing the structure of a second embodiment of a dropping tube for skin pricking according to the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
fig. 6 is an exploded view of the tapping assembly of fig. 4.
In the figure: 1. a tube body; 11. a first end; 12. a second end; 2. a catheter; 21. a bending unit; 3. a liquid taking assembly; 31. fixing a sleeve; 311. a partition plate; 32. a push rod; 33. a resilient extrusion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
FIG. 1 is a schematic structural view of a first embodiment of a dropping tube for skin prick according to the present invention, and FIG. 2 is a sectional view of FIG. 1; as can be seen from the two figures, the dropping liquid pipe comprises a pipe body and a liquid taking assembly, wherein a liquid guide pipe with a bending unit is arranged in the pipe body, two ends of the liquid guide pipe are respectively communicated with a first end and a second end, the liquid taking assembly is sleeved on the second end and is communicated with the liquid guide pipe through the second end, and the liquid taking assembly is a rubber cap. Compare with traditional dropping liquid pipe, this dropping liquid pipe has not only improved the structure of pipe shaft, and the length that is located the catheter in the pipe shaft simultaneously also lengthens relatively, and the internal diameter of corresponding catheter reduces for operating personnel can be more audio-visual the flow of observing liquid.
FIG. 3 is a schematic view of a first embodiment of a dropper for skin pricking of the present invention; at the moment, part of liquid exists in the liquid guide pipe in the pipe body, and simultaneously, the liquid in the liquid guide pipe drips out through the first end along with the extrusion of the liquid taking assembly.
FIG. 4 is a schematic structural view of a second embodiment of a dropping tube for skin prick according to the present invention, and FIG. 5 is a sectional view of FIG. 4; compared with the first embodiment, the liquid taking assembly in the dropping liquid pipe is replaced by a fixed sleeve, a push rod and an elastic extrusion piece by a rubber cap.
FIG. 6 is an exploded view of the tapping assembly of FIG. 4; one end of a fixing sleeve of the liquid taking assembly can be sleeved at the second end and is in sealing connection with the second end, the other end of the fixing sleeve is used for inserting a push rod, and an elastic extrusion piece is arranged in the fixing sleeve.
The technical solution of the present invention will be specifically described below with reference to the accompanying drawings.
The utility model provides a dropping tube for skin prick, which comprises a tube body 1 and a liquid taking assembly 3, wherein the tube body 1 extends outwards to form a first end 11 and a second end 12, and a liquid guide tube 2 capable of communicating the first end 11 with the second end 12 is arranged in the tube body 1. The axis of the catheter 2 is in a non-linear structure; the liquid taking component 3 is connected with the pipe body 1 through a second end 12, and the first end 11 is used for sucking and dripping liquid. The liquid taking component 3 can drive out the gas in the liquid guide pipe 2 under the action of external force, thereby realizing the suction and the dripping of the liquid.
It should be noted that the first end 11 and the second end 12 may be respectively located at two ends of the tube body 1 in the length direction, or may be respectively located on two adjacent side surfaces of the tube body 1.
In addition, the tube body 1 is of a transparent structure, so that an operator can conveniently observe the liquid condition in the catheter 2.
Example 1:
as shown in figures 1-2, the present invention provides a dropping tube for skin prick, which comprises a tube body 1 and a liquid taking assembly 3, wherein the tube body 1 extends outwards in the length direction to form a first end 11 and a second end 12, which are connected with each other by a non-linear liquid guiding tube 2 located in the tube body 1. The liquid taking component 3 is a rubber cap which is sleeved on the periphery of the second end 12 and the interior of the rubber cap is communicated with the liquid guide tube 2 through the second end 12. The rubber cap is of a hollow structure, and when the rubber cap is extruded by external force, the air in the rubber cap can be extruded into the liquid guide pipe 2, so that the air in the liquid guide pipe 2 is discharged.
Specifically, the inner diameter of the port of the first end 11 for dripping liquid is 0.5-1.2 mm, so as to ensure that the amount of the dripped liquid is fixed to be 0.05 mm.
In addition, in order to ensure that the first end 11 is not damaged, a protective cover structure may be covered outside the first end 11.
Because the axis of the catheter 2 for communicating the first end 11 and the second end 12 is a non-linear structure, the length of the catheter 2 is larger than the length of the catheter body 1 and a part of bending structures exist, a channel for liquid to flow is longer in operation, and an operator can observe the moving speed of liquid more accurately in use, so that the dropping amount of the pricking liquid can be effectively adjusted, and the dropping amount of the pricking liquid can be kept consistent in multiple operations.
As an alternative embodiment, the catheter 2 comprises at least one bending unit 21. This unit 21 of bending can help improving the length of catheter 2 greatly to make the removal that the same amount of prick liquid of absorption can be in shaft 1 more obvious, make things convenient for the accurate operation of operating personnel, help controlling the amount of dripping of prick liquid.
Specifically, the bending unit 21 includes at least a portion of a curved structure, or the bending unit 21 has an arc-shaped or Z-shaped structure.
In addition, the length of the bending unit 21 is set to be not more than half the length of the pipe body 1 for convenience of use, as shown in fig. 2.
By means of the above-described structure, a variety of different shapes of the bending unit 21 can be provided to help extend the length of the catheter 2.
As an alternative embodiment, the axes of the first end 11 and the second end 12 do not coincide.
The dislocation design is helpful to operation and avoids blocking the sight of the operator.
The dropping liquid tube for skin prick is shown in fig. 3 when it is used.
It should be noted that the configuration of the catheter 2 in fig. 2 is only an illustration, and the arrangement position, shape, inner diameter, length, etc. of the bending unit 21 can be adjusted according to actual needs.
Example 2:
the present embodiment 2 is different from embodiment 1 in that: as shown in Figs. 4-6, the present invention provides another dropping tube for skin prick, in which the liquid taking assembly 3 is replaced by a fixed sleeve 31, a push rod 32 and an elastic extrusion 33 by a rubber cap.
Specifically, the fixing sleeve 31 is sleeved on the outer peripheral side of the second end 12, the elastic extrusion piece 33 is located in the fixing sleeve 31, one end of the push rod 32 penetrates through the fixing sleeve 31 and is in sealing fit with the fixing sleeve 31, and the push rod 32 can move towards the direction of the second end 12 under the action of external force and extrude the elastic extrusion piece 33.
The lateral wall of push rod 32 and the inside wall tight fit of fixed cover 31, when it receives the exogenic action to remove in fixed cover 31, can extrude elastic extrusion spare 33 and make it produce deformation to extrude the gas that is located between fixed cover 31 and elastic extrusion spare 33 to the catheter 2 in, realize the gas discharge in the catheter 2.
As an alternative embodiment, the end of the push rod 32 is provided with a rubber piston; and/or the resilient extrusion 33 is a rubber gasket.
The above structure not only helps to realize the sealing fit between the push rod 32 and the fixed sleeve 31, but also ensures that the elastic extrusion piece 33 has better elastic deformation and recovery capability.
As an alternative embodiment, the rubber gasket is of spherical or ellipsoidal configuration.
In addition, it should be noted that, in order to ensure that the elastic extrusion member 33 does not close the second end 12, a partition 311 for supporting the elastic extrusion member 33 is provided in the fixing sleeve 31, and the partition 311 can block the second end 12 and the elastic extrusion member 33. Further, the partition 311 is provided with a hole for guiding air.
Specifically, the partition plates 311 are arranged in the fixing sleeve 31 along the axis of the fixing sleeve 31 and lift the elastic extrusion piece 33 when the number of the partition plates is one; when the number of the partition plates 311 is two or more, a plurality of the partition plates 311 are located at the same height of the fixing sleeve 31 and are uniformly distributed along the circumferential side.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A dropping liquid tube for skin prick is characterized by comprising:
the catheter comprises a catheter body (1), wherein the catheter body (1) extends outwards to form a first end (11) and a second end (12), a catheter (2) positioned in the catheter body (1) is communicated with the first end (11) and the second end (12), and the axis of the catheter (2) is non-linear;
the liquid taking component (3) is connected with the pipe body (1) through the second end (12), and when the liquid taking component (3) is under the action of external force, gas in the liquid guide pipe (2) can be expelled.
2. A dropper for skin pricks according to claim 1, wherein the catheter (2) comprises at least one bending unit (21).
3. The dropper for skin pricks according to claim 2 wherein the bending unit (21) comprises an at least partially curved structure.
4. The dropping tube for skin prick according to claim 2, characterized in that the length of the bending unit (21) is not more than half of the length of the tube body (1).
5. The dropping tube for skin prick according to claim 2, characterized in that the bending unit (21) has an arc or Z-shaped structure.
6. A dropper for skin pricks according to claim 1, wherein the axes of the first end (11) and the second end (12) are not coincident.
7. The dropper for skin pricks according to claim 1 wherein the liquid taking component (3) is a rubber cap fitted around the second end (12).
8. A dropper for skin pricks according to claim 1, wherein the liquid extraction assembly (3) comprises a fixed sleeve (31), a push rod (32) and a resilient extrusion (33):
fixed cover (31) cover is established the periphery side of second end (12), elasticity extruded article (33) are located in fixed cover (31), the one end of push rod (32) is worn to establish in fixed cover (31) and with fixed cover (31) seal fit, push rod (32) can move and extrude under the exogenic action second end (12) direction elasticity extruded article (33).
9. A dropper for skin pricking according to claim 8, wherein the end of the plunger (32) is provided with a rubber piston; and/or the resilient extrusion (33) is a rubber gasket.
10. The tube of claim 8 wherein a baffle is disposed within said hub.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202122557663.1U CN216394116U (en) | 2021-10-22 | 2021-10-22 | Dropping liquid tube for skin prick |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202122557663.1U CN216394116U (en) | 2021-10-22 | 2021-10-22 | Dropping liquid tube for skin prick |
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CN216394116U true CN216394116U (en) | 2022-04-29 |
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CN202122557663.1U Active CN216394116U (en) | 2021-10-22 | 2021-10-22 | Dropping liquid tube for skin prick |
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- 2021-10-22 CN CN202122557663.1U patent/CN216394116U/en active Active
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Effective date of registration: 20240925 Address after: 750002 No.301, Zhengyuan North Street, Jinfeng District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: People's Hospital of Ningxia Hui Autonomous Region Country or region after: China Address before: 750000 No. 4, Gonghu, Beijing West Road District Hospital, Xixia District, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: Zhang Shuhong Country or region before: China |