CN214681821U - Disposable conductive suction head - Google Patents
Disposable conductive suction head Download PDFInfo
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- CN214681821U CN214681821U CN202121029285.3U CN202121029285U CN214681821U CN 214681821 U CN214681821 U CN 214681821U CN 202121029285 U CN202121029285 U CN 202121029285U CN 214681821 U CN214681821 U CN 214681821U
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- main body
- suction head
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- sample
- conductive
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Abstract
The utility model discloses a disposable conductive suction head, which comprises a conical suction head, wherein the suction head comprises a main body part for transferring liquid and a top part for being hermetically connected with an external sample injector, and the main body part is connected and communicated with the top part; and a filter element for filtering aerosol and isolating a sample is arranged at one end of the main body part close to the top part. Set up the filter core between main part and top, the pollution nature aerosol that the filter core can filter the interior production of main part to isolated sample in the main part has kept apart main part and top effectively, avoids the top and the outside application of sample ware of being connected with the top to receive the pollution. Meanwhile, the disposable sample adding conductive suction head has a simple structure, no redundant characteristics are arranged outside the suction head, and the cost of the die and the cost of single manufacture are both lower.
Description
Technical Field
The utility model relates to an external diagnostic technology field, more specifically say, relate to a disposable conductive suction head.
Background
The disposable conductive suction head is used for transferring liquid of samples in the process of the field of in vitro diagnosis, and is widely applied to chemiluminescence automatic equipment, biochemical detection automatic equipment, nucleic acid automatic extraction equipment and the like.
The utility model CN202075287U discloses a disposable sample adding tip for an elongated lead, which comprises a sample adding pipe which is integrally conical, a communicated cavity is arranged in the sample adding pipe, and the sample adding pipe comprises an end part which can be combined with sample adding equipment, an elongated conical tip part, a connecting end part and the middle part of the tip part; the inner cavity wall of the middle part is provided with inwardly convex circular rings along the circumference, and the circular rings are provided with 2 circles at intervals along the axial direction; the outer wall of the end part is evenly distributed with reinforcing ribs along the circumference.
The end part of the sample adding tip is directly communicated with the tip part, and when the tip part generates polluted gas, the adapter can be directly polluted, and finally, the pollution of an external sample adding device is caused; in addition, the sample adding tip is provided with a convex circular ring in the inner cavity and a reinforcing edge on the outer wall, so that the structure is complex and the cost of the die is high.
In view of the above, it is an urgent need to solve the problem of providing a simple structure of a conductive tip that will not contaminate an external sample injector.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a disposable electrically conductive suction head is equipped with the filter core between main part and top, has avoided polluting aerosol or sample and has polluted outside injector, and simple structure, be convenient for make, and manufacturing cost is lower.
In order to achieve the above object, the present invention provides the following technical solutions:
a disposable conductive pipette tip comprises a conical pipette tip, wherein the pipette tip comprises a main body part for pipetting and a top part for being hermetically connected with an external sample injector, and the main body part is connected and communicated with the top part;
and a filter element for filtering aerosol and isolating a sample is arranged at one end of the main body part close to the top part.
Preferably, the inner wall surface of the main body part is provided with a limiting bulge for limiting the axial position of the filter element.
Preferably, the limiting protrusion is an annular protrusion arranged around the inner wall surface of the main body part.
Preferably, the limiting protrusions are a plurality of arc-shaped protrusions located on the same circumference of the inner wall surface of the main body part.
Preferably, the arc-shaped protrusions are uniformly distributed in a circumferential direction of the main body portion.
Preferably, one end of the top part close to the main body part is provided with a step surface.
The utility model provides a disposable electrically conductive suction head sets up the filter core between main part and top, filters the interior polluting aerosol that produces of main part through the filter core to isolated sample in the main part has kept apart main part and top effectively, avoids the top and receives the pollution with the outside application of sample ware that the top is connected.
And simultaneously, the utility model provides a conductive suction head of disposable application of sample simple structure, the suction head outside does not have unnecessary characteristic, and mould cost and single manufacturing cost are all lower.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of the disposable conductive tip of the present invention;
FIG. 2 is a schematic cross-sectional view of the disposable conductive tip of FIG. 1.
In fig. 1-2:
the filter comprises a main body part 1, a limiting bulge 11, a top part 2, a step surface 21, a guide groove 22 and a filter element 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a disposable conductive suction head, be equipped with the filter core between main part and top, avoided polluting aerosol or sample and polluted outside injector, and simple structure, be convenient for make, manufacturing cost is lower.
Referring to fig. 1-2, fig. 1 is a schematic structural view of an embodiment of a disposable conductive suction head provided by the present invention; FIG. 2 is a schematic cross-sectional view of the disposable conductive tip of FIG. 1.
The disposable conductive suction head provided by the embodiment comprises a conical suction head, wherein the suction head comprises a main body part 1 for pipetting and a top part 2 for being hermetically connected with an external sample injector, and the main body part 1 is connected and communicated with the top part 2; the main body 1 is provided with a filter element 3 for filtering aerosol and isolating a sample at one end close to the top 2.
The suction head is a conical tube with openings at two ends and a gradually reduced diameter, and the length, the taper and the diameter of the openings at two ends of the suction head are determined according to the actual production needs by referring to the prior art, which is not described herein again.
The suction head is made of conductive materials and is formed by injection molding through a mold, and the specific type of the conductive materials is determined according to the conductive design requirement of the suction head by referring to the prior art, so that the detailed description is omitted.
The main body part 1 is used for transferring liquid and storing a sample during liquid transferring, the main body part 1 is a slender taper tube, preferably, a sample adding tip can be arranged at one end of the main body part 1 close to a sample adding port, and the taper of the sample adding tip is larger than that of one end of the main body part 1 close to the top part 2.
The top part 2 is intended to be connected to an adapter of an external applicator, and referring to fig. 1 and 2, the end face of the top part 2 is provided with guide grooves 22 for better connection to the adapter.
The filter element 3 is disposed at one end of the main body portion 1 close to the top portion 2, and is used for filtering and absorbing the sample and the pollutant aerosol possibly generated by the main body portion 1, so as to prevent the pollutant aerosol from entering the adapter through the top portion 2 and finally polluting an external sample injector.
The filter element 3 can be made of a material with good filtering performance, such as high-density glass fiber.
In order to prevent the filter element 3 from moving in the axial direction of the main body 1, it is preferable that a stopper protrusion 11 for restricting the axial position of the filter element 3 is provided on the inner wall surface of the main body 1. The limiting bulge 11 has a supporting function on the filter element 3, and the filter element 3 is prevented from moving downwards along the axis direction of the main body part 1 due to self weight when the disposable conductive suction head is rightly arranged.
Preferably, the stopper projection 11 may be a plurality of arc-shaped projections located on the same circumference of the inner wall surface of the body portion 1. The central angle angles corresponding to the arc-shaped bulges can be the same or different.
In order to uniformly apply force to each part of the filter element 3, it is preferable that the arc-shaped protrusions are uniformly distributed in the circumferential direction of the main body portion 1.
Considering that the plurality of dispersed arc-shaped protrusions have relatively complicated structures and high manufacturing difficulty, it is preferable that the stopper protrusion 11 be an annular protrusion provided around the inner wall surface of the body portion 1, as shown in fig. 2.
The height of the annular bulge is determined by comprehensively considering the factors of the manufacturing difficulty of the die, the size of the main body part 1 and the like in the actual production process.
Preferably, spacing arch 11 is perpendicular with the axis direction of main part 1, makes things convenient for the mould to make on the one hand, and on the other hand can increase the sample volume that main part 1 can hold under the unchangeable prerequisite of length of main part 1.
In this embodiment, the filter element 3 is disposed between the main body 1 and the top 2, and the filter element 3 filters the polluting aerosol generated in the main body 1 and isolates the sample in the main body 1, thereby effectively isolating the main body 1 from the top 2 and preventing the top 2 and the external sample injector connected with the top 2 from being polluted.
Meanwhile, the disposable sample adding conductive suction head provided by the embodiment has the advantages of simple structure, no redundant characteristics of the suction head outside, and lower mold cost and single manufacturing cost.
Preferably, a step surface 21 is provided at one end of the top portion 2 close to the main body portion 1.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above detailed description is made on the disposable conductive suction head provided by the utility model. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. A disposable conductive pipette tip, characterized by comprising a conical pipette tip, said pipette tip comprising a main body (1) for pipetting and a top part (2) for sealing connection with an external sample applicator, said main body (1) being connected and communicating with said top part (2);
and a filter element (3) for filtering aerosol and isolating a sample is arranged at one end of the main body part (1) close to the top part (2).
2. The conductive disposable tip according to claim 1, wherein the inner wall of the main body (1) is provided with a limiting protrusion (11) for limiting the axial position of the filter element (3).
3. The disposable conductive pipette tip according to claim 2, wherein the stopper projection (11) is an annular projection provided around the inner wall surface of the main body (1).
4. The disposable conductive pipette tip according to claim 2, wherein the stopper projection (11) is a plurality of arc-shaped projections on the same circumference of the inner wall surface of the main body part (1).
5. The disposable conducting tip according to claim 4, characterized in that said arc-shaped protrusions are evenly distributed in the circumferential direction of said main body (1).
6. The disposable conducting tip according to any one of claims 1-5, characterized in that the end of the tip (2) close to the body (1) is provided with a stepped surface (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029285.3U CN214681821U (en) | 2021-05-13 | 2021-05-13 | Disposable conductive suction head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029285.3U CN214681821U (en) | 2021-05-13 | 2021-05-13 | Disposable conductive suction head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214681821U true CN214681821U (en) | 2021-11-12 |
Family
ID=78552639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121029285.3U Active CN214681821U (en) | 2021-05-13 | 2021-05-13 | Disposable conductive suction head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214681821U (en) |
-
2021
- 2021-05-13 CN CN202121029285.3U patent/CN214681821U/en active Active
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