CN211527934U - Seal broken hole needle of membrane and get liquid device - Google Patents
Seal broken hole needle of membrane and get liquid device Download PDFInfo
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- CN211527934U CN211527934U CN201922430072.0U CN201922430072U CN211527934U CN 211527934 U CN211527934 U CN 211527934U CN 201922430072 U CN201922430072 U CN 201922430072U CN 211527934 U CN211527934 U CN 211527934U
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Abstract
The application discloses a membrane sealing and hole breaking needle and a liquid taking device, wherein the membrane sealing and hole breaking needle comprises a hole breaking needle head and a hole breaking rod, and the hole breaking needle head is connected with the bottom of the hole breaking rod; the bottom of the hole breaking needle head is provided with a hole breaking cutter set, the hole breaking cutter set comprises 4 hole breaking blades which are arranged in a cross mode, and the blade thickness of the hole breaking blades is in inverse proportion to the distance between the blade thickness and the top of the hole breaking rod. The application provides a seal broken hole needle of membrane for reagent card after puncturing seals the membrane and is convenient for the suction nozzle and stretches into, possesses the advantage that punctures the membrane scope big, effectual, the hanging liquid not.
Description
Technical Field
The application relates to the technical field of medical equipment, more specifically say, especially relate to a seal broken hole needle of membrane and get liquid device.
Background
Chromatography (chromatography) is short for "chromatography". The method is to separate and measure the mixture of multiple components by utilizing the difference of physical properties of the components. There are two kinds of adsorption chromatography and partition chromatography. Generally, it is used for analysis of organic compounds, metal ions, amino acids, and the like. Chromatography utilizes different distribution ratios of substances between a fixed phase and a mobile phase to achieve the separation purpose. Chromatography has extremely high resolution for the separation and analysis of complex organic mixtures of biological macromolecules such as proteins and nucleic acids.
The immunochromatography technology is a rapid clinical detection technology which is developed rapidly in the medical field at home and abroad in recent years, and has the characteristics of rapid detection, simple operation, low cost and the like.
In the chromatographic detection, a reagent card is mainly used for detecting sample liquid. The detection reagent card of the prior art comprises an upper cover, a base, a sealing film and detection test paper or reagent, wherein a sample adding hole and a reading window are arranged on the upper cover, a test paper groove is formed in the base, the detection test paper or reagent is arranged in a cavity of the test paper groove, the upper cover is connected with the base, and the sealing film covers the top surface of the upper cover. When the reagent bottle is used, the sealing film needs to be punctured, and the suction nozzle extends into the reagent cavity to suck liquid.
However, the action surface of the hole breaking needle adopted in the prior art is of a single-piece structure, the membrane puncturing effect is poor, the sealing membrane is punctured and then is torn into two parts, the torn sealing membrane of the two parts still has certain local strength, the sucking nozzle is hindered at certain probability, and the sucking nozzle is not beneficial to extending into the reagent cavity to suck liquid.
Therefore, designing a hole breaking needle which can make the punctured sealing film conveniently extend into a suction nozzle is a problem to be solved by a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the application provides a seal broken hole needle of membrane can make the membrane of sealing after pricking be convenient for the suction nozzle and stretch into.
The technical scheme provided by the application is as follows:
a membrane sealing hole breaking needle comprises a hole breaking needle head and a hole breaking rod, wherein the hole breaking needle head is connected with the bottom of the hole breaking rod;
the bottom of the hole breaking needle head is provided with a hole breaking cutter set, the hole breaking cutter set comprises 4 hole breaking blades which are arranged in a cross mode, and the blade thickness of the hole breaking blades is in inverse proportion to the distance between the blade thickness and the top of the hole breaking rod.
Preferably, broken hole syringe needle bottom still is provided with the button head needle, the button head needle is located between the broken hole cutting edge, just button head needle footpath cross-section axle center is located on the radial line in each footpath cross-section axle center of broken hole cutting edge.
Preferably, the excircle side wall of the round-head needle is connected with each hole breaking blade.
Preferably, the axial length of the round-head needle is smaller than the axial length of the hole breaking blade.
A liquid taking device, which comprises any one of the film sealing hole breaking needle and also comprises,
the screw rod motor is arranged at the top and comprises a motor body, a screw rod shaft connected with the motor body and a sliding nut sleeved on the screw rod shaft;
the fixing component comprises a positioning block connected with the motor body and a fixing block connected with the membrane sealing hole breaking needle, and the sliding nut is positioned above the fixing block;
the guide component comprises a guide rail vertically arranged on the positioning block and a sliding block connected with the fixing block, and the sliding block is connected with the guide rail in a sliding manner;
and the liquid taking component is connected with the fixed block.
Preferably, the top of the film sealing hole breaking needle is provided with a D-shaped positioning rod, a fastening flange is sleeved on the D-shaped positioning rod, and the film sealing hole breaking needle is fixed on the fixing block through the fastening flange.
Preferably, the positioning device further comprises a limiting plate which is arranged below the fixing block and connected with the positioning block, and a first guide hole and a second guide hole are formed in the limiting plate;
the position of the first guide hole corresponds to the position of the film sealing hole breaking needle, and the position of the second guide hole corresponds to the position of the liquid taking component.
Preferably, the liquid taking part comprises an upper suction nozzle and a lower TP head.
Preferably, the limiting plate is further provided with a through hole, and the through hole is formed between the first guide hole and the second guide hole and used for allowing the screw shaft to pass through.
The utility model provides a seal broken hole needle of membrane owing to adopted and arranged into cross broken hole cutting edge, tear a mouthful itself and can form the opening similar with cross, compare in a word opening, its local strength is lower, it is littleer to the hindrance of suction nozzle, and cutting edge thickness is along with broken hole process increases gradually, initial stage utilizes thinner cutting edge to puncture or tear a membrane promptly, seal the membrane and break the back, utilize thicker rear portion cutting edge to pass through the opening and increase the degree of breaking, the broken hole effect has further been improved. According to the above, the utility model provides a seal broken hole needle of membrane can improve puncture effect for seal membrane after puncturing is convenient for the suction nozzle and stretches into, possesses that to puncture the membrane scope big, effectual, the advantage of hanging liquid not.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a film sealing hole breaking needle provided in an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a film sealing hole breaking needle provided in an embodiment of the present invention;
fig. 3 is a schematic structural view of a liquid extracting device according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of the liquid extracting apparatus provided by the embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
The embodiment of the utility model provides an adopt progressive mode to write.
As shown in fig. 1, an embodiment of the present invention provides a membrane sealing hole breaking needle, which includes a hole breaking needle head 1 and a hole breaking rod 2, wherein the hole breaking needle head 1 is connected to the bottom of the hole breaking rod 2;
the bottom of the hole breaking needle head 1 is provided with a hole breaking cutter set 11, the hole breaking cutter set 11 comprises 4 hole breaking blades 12 which are arranged in a cross shape, and the blade thickness of each hole breaking blade 12 is in inverse proportion to the distance between the hole breaking blade 12 and the top of the hole breaking rod 2.
The hole breaking rod 2 and the hole breaking needle 1 in this embodiment are used as main body parts of a membrane sealing hole breaking needle, and the bottom of the hole breaking needle 1 is provided with a hole breaking cutter set 11 which is overall cross-shaped, and 4 hole breaking blades 12 which form the hole breaking cutter set 11 are gradually reduced in blade thickness from top to bottom.
When in use, the hole breaking rod 2 is taken as an action point to vertically move from top to bottom, so that the hole breaking blade 12 moves towards the reagent sheet positioned below the membrane sealing hole breaking needle until the membrane sealing of the reagent sheet is punctured.
Compared with the traditional hole breaking needle with a single-chip structure, such as the most common straight hole breaking needle, the film sealing hole breaking needle of the embodiment has the advantages that the hole breaking blades 12 arranged in a cross shape are adopted, the tearing opening can form an opening similar to the cross shape, compared with the straight opening, the puncturing range is larger, the local strength of the tearing opening part is lower, the obstruction to the suction nozzle 61 is smaller, the blade thickness is gradually increased along with the hole breaking process, namely, the thin blade is used for puncturing or tearing the sealing film in the initial stage, after the sealing film is punctured, the thicker rear blade is used for increasing the puncturing degree through the opening, the hole breaking effect is further improved, and the film sealing hole breaking needle has the advantages of large film puncturing range, good effect and no liquid hanging.
Of course, the hole breaking cutter set 11 may also take other shapes, for example, a quincunx shape is formed by 5 hole breaking blades 12, or a cross shape is formed by still adopting 4 hole breaking blades 12, or even only 3 hole breaking blades 12 are used and the included angle between each two adjacent hole breaking blades 12 is 60 degrees, and the specific types and arrangement thereof will not be described herein again.
Preferably, the bottom of the hole breaking pinhead 1 is further provided with a round head needle 13, the round head needle 13 is positioned between the hole breaking blades 12, and the radial section axes of the round head needle 13 are positioned on the radial connecting line of the respective radial section axes of the hole breaking blades 12.
That is, the round-head pin 13 is arranged in the center of the hole breaking knife set 11, and because the stress area of the round-head pin 13 and the membrane sealing is smaller, on the premise of applying the same acting force on the hole breaking rod 2, the round-head pin 13 with larger pressure intensity can be utilized to further strengthen the piercing force on the membrane sealing.
Preferably, the excircle side wall of the round-head needle 13 is connected with each hole breaking blade 12, so that the round-head needle is convenient to integrally process during processing, and the round-head needle 13 is supported, so that the round-head needle can be more stable under stress or force application.
Preferably, the axial length of the round-nose needle 13 is smaller than the axial length of the hole breaking blade 12, that is, the entire length of the round-nose needle 13 is smaller than the length of the hole breaking blade 12, so that the round-nose needle 13 is used for further puncturing after the hole breaking knife set 11 has punctured the sealing membrane, which is equivalent to that the hole breaking knife set 11 is used for preprocessing, and the round-nose needle 13 is used for subsequent thinning processing.
Correspondingly, the embodiment also discloses a liquid taking device, which comprises any one of the film sealing hole breaking needle and a liquid taking device,
the screw rod motor is arranged at the top and comprises a motor body 31, a screw rod shaft 32 connected with the motor body 31 and a sliding nut 33 sleeved on the screw rod shaft 32;
the fixing part comprises a positioning block 41 connected with the motor body 31 and a fixing block 42 connected with the membrane sealing hole breaking needle, and the sliding nut 33 is positioned above the fixing block 42;
the guide part comprises a guide rail 51 vertically arranged on the positioning block 41 and a sliding block 52 connected with the fixed block 42, and the sliding block 52 is in sliding connection with the guide rail 51;
and the liquid taking part 6 is connected with the fixed block 42.
When the device is used, the starting motor body 31 rotates the bolt shaft to drive the sliding nut 33 sleeved on the bolt shaft to rotate, and because the sliding nut 33 is positioned on the fixed block 42, when the sliding nut 33 slides until contacting with the fixed block 42, a downward acting force is applied to the fixed block 42, and the fixed block 42 is connected with the slide block 52 arranged on the vertical guide rail 51, the fixed block 42 moves vertically downwards, and simultaneously drives the film sealing hole breaking needle to move vertically downwards, so that the puncture treatment of the reagent card sealing film below is realized.
Moreover, the liquid taking component 6 connected with the fixed block 42 can perform liquid taking operation after the reagent card sealing film is punctured due to the same operation process.
The whole liquid taking device adopts the film sealing and hole breaking needle, so that the film sealing effect can be effectively achieved, the film sealing range is large, the effect is good, the punctured film sealing is convenient for the suction nozzle 61 to extend into, and the liquid hanging problem caused by the traditional straight-line-shaped hole breaking needle is avoided.
Meanwhile, the lead screw motor is matched with the guide part, so that the problem that the puncture hole is too large or the puncture depth is too deep due to different manual operation force or time can be effectively solved. In practical application, the control chip is arranged in the screw rod motor, the running time and the running speed of the screw rod motor are preset, and the whole puncturing and liquid taking process is accurately controlled.
Preferably, the top of the film sealing hole breaking needle is provided with a D-shaped positioning rod 21, a fastening flange 22 is sleeved on the D-shaped positioning rod 21, and the film sealing hole breaking needle is fixed on the fixing block 42 through the fastening flange 22.
Of course, in practical applications, other types or shapes of fixing components, such as a snap component or a bolt-fit nut, may be selected according to the needs, and will not be described herein again.
Preferably, the device further comprises a limiting plate 7 which is arranged below the fixing block 42 and connected with the positioning block 41, and the limiting plate 7 is provided with a first guide hole and a second guide hole;
the position of the first guide hole corresponds to the position of the film sealing hole breaking needle, and the position of the second guide hole corresponds to the position of the liquid taking component 6.
Through set up limiting plate 7 below fixed block 42, can be to sealing broken hole needle of membrane, get the kinematic position of liquid part 6 and prescribe a limit to, avoid sealing broken hole needle of membrane, get excessive downstream of liquid part 6, and cause unnecessary interference or atress damage in the reagent card, and set up with the broken hole needle of sealing membrane, get first guiding hole and the second guiding hole that liquid part 6 corresponds respectively, be convenient for stabilize the broken hole needle of sealing membrane, get the motion direction of liquid part 6, also can be to sealing broken hole needle of membrane, get liquid part 6 and play the supporting role of certain degree simultaneously.
Preferably, the liquid-extracting member 6 comprises an upper suction nozzle 61 and a lower TP head 62.
Preferably, the limiting plate 7 is further provided with a through hole, and the through hole is arranged between the first guide hole and the second guide hole and is used for allowing the screw shaft 32 to pass through.
In the practical application, the length of screw shaft 32 can be selected, and when screw shaft 32 is longer, through the through-hole cooperation limiting plate 7 on the limiting plate 7, can play support and limiting displacement to screw shaft 32, avoids it to produce unnecessary lateral displacement when rotatory.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A membrane sealing and hole breaking needle is characterized by comprising a hole breaking needle head and a hole breaking rod, wherein the hole breaking needle head is connected with the bottom of the hole breaking rod;
the bottom of the hole breaking needle head is provided with a hole breaking cutter set, the hole breaking cutter set comprises 4 hole breaking blades which are arranged in a cross mode, and the blade thickness of the hole breaking blades is in inverse proportion to the distance between the blade thickness and the top of the hole breaking rod.
2. The membrane sealing and hole breaking needle as claimed in claim 1, wherein a round-head needle is further arranged at the bottom of the hole breaking needle head, the round-head needle is located between the hole breaking blades, and the axle center of the diameter section of the round-head needle is located on a radial connecting line of the axle centers of all the diameter sections of the hole breaking blades.
3. The membrane sealing and hole breaking needle as claimed in claim 2, wherein the outer circular side wall of the round-head needle is connected with each hole breaking blade.
4. The membrane sealing and hole breaking needle of claim 2, wherein the axial length of the round-headed needle is smaller than the axial length of the hole breaking blade.
5. A liquid taking device, which is characterized by comprising the film sealing hole breaking needle as claimed in any one of claims 1 to 4, and further comprising,
the screw rod motor is arranged at the top and comprises a motor body, a screw rod shaft connected with the motor body and a sliding nut sleeved on the screw rod shaft;
the fixing component comprises a positioning block connected with the motor body and a fixing block connected with the membrane sealing hole breaking needle, and the sliding nut is positioned above the fixing block;
the guide component comprises a guide rail vertically arranged on the positioning block and a sliding block connected with the fixing block, and the sliding block is connected with the guide rail in a sliding manner;
and the liquid taking component is connected with the fixed block.
6. The liquid taking device according to claim 5, wherein a D-shaped positioning rod is arranged at the top of the film sealing hole breaking needle, a fastening flange is sleeved on the D-shaped positioning rod, and the film sealing hole breaking needle is fixed on the fixing block through the fastening flange.
7. The liquid taking device according to claim 5, further comprising a limiting plate arranged below the fixing block and connected with the positioning block, wherein the limiting plate is provided with a first guide hole and a second guide hole;
the position of the first guide hole corresponds to the position of the film sealing hole breaking needle, and the position of the second guide hole corresponds to the position of the liquid taking component.
8. The fluid extraction device of claim 5, wherein the fluid extraction member comprises an upper suction nozzle and a lower TP head.
9. The liquid taking device according to claim 7, wherein the limiting plate is further provided with a through hole, and the through hole is arranged between the first guide hole and the second guide hole and used for allowing the screw shaft to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922430072.0U CN211527934U (en) | 2019-12-27 | 2019-12-27 | Seal broken hole needle of membrane and get liquid device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922430072.0U CN211527934U (en) | 2019-12-27 | 2019-12-27 | Seal broken hole needle of membrane and get liquid device |
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| CN211527934U true CN211527934U (en) | 2020-09-18 |
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| CN201922430072.0U Active CN211527934U (en) | 2019-12-27 | 2019-12-27 | Seal broken hole needle of membrane and get liquid device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117741171A (en) * | 2024-02-19 | 2024-03-22 | 深圳市帝迈生物技术有限公司 | Detection control method of sample analyzer and sample analyzer controller |
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2019
- 2019-12-27 CN CN201922430072.0U patent/CN211527934U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117741171A (en) * | 2024-02-19 | 2024-03-22 | 深圳市帝迈生物技术有限公司 | Detection control method of sample analyzer and sample analyzer controller |
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