CN202994807U - Sampling needle - Google Patents
Sampling needle Download PDFInfo
- Publication number
- CN202994807U CN202994807U CN 201220723472 CN201220723472U CN202994807U CN 202994807 U CN202994807 U CN 202994807U CN 201220723472 CN201220723472 CN 201220723472 CN 201220723472 U CN201220723472 U CN 201220723472U CN 202994807 U CN202994807 U CN 202994807U
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- CN
- China
- Prior art keywords
- closing member
- nook closing
- temperature
- reagent
- needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to the technical field of medical apparatuses, and provides a sampling needle. The sampling needle comprises a needle core, a needle tip arranged at the lower end of the needle core, a suction device connected at the upper end of the needle core and a case sleeved with the needle core, and further comprises a temperature sensor compactly arranged on the outer wall of the needle core for detecting the temperature of a reagent in the needle core, a heater compactly arranged on the outer wall of the needle core for heating the reagent in the needle core, and a control circuit electrically connected with the temperature sensor and the heater for controlling the heater to heat the reagent in the needle core and control the temperature according to the temperature detected by the temperature sensor, respectively. The sampling needle provided by the utility model can heat the reagent in the sampling needle and control temperature.
Description
Technical field
The utility model relates to technical field of medical instruments, is specifically related to a kind of sample needle.
Background technology
At present, carry out the sample needle of application of sample at promising instruments of domain arrangement such as clinical examination, pharmacy, life science, animals and plants inspection and quarantine, with distribution and the transfer that realizes reagent.
Reagent generally needs stored under refrigeration, but the temperature of reagent when being used for test need to be 37 ℃ of left and right, to guarantee measuring accuracy.Deposition or chemical reaction can occur in the temperature variation reagent due to environment in addition, the reagent of deposition can remain in the nook closing member of sample needle has increased the cleaning difficulty, if cleaning, sample needle totally will not cause cross pollution, and the reagent that chemical reaction occurs will reduce the experimental precision of reagent because composition changes.
So sample needle when application of sample, need to heat the reagent in sample needle and temperature control, guaranteeing the precision of test, thereby and guarantee that the cleaning performance of sample needle avoids cross pollution.And the sample needle of band heating and function of temperature control is not provided in prior art.
The utility model content
The purpose of this utility model is to provide a kind of sample needle, is intended to solve the problem of the sample needle that band heating and function of temperature control are not provided in prior art.
For this reason, the utility model is by the following technical solutions:
A kind of sample needle comprises: nook closing member, be arranged at the needle point of described nook closing member lower end, and with the sucking-exhausting device that the upper end of described nook closing member is connected, the shell of sheathed described nook closing member; Also comprise:
Be closely set in the temperature sensor of the temperature of reagent in described nook closing member outer wall, the described nook closing member of detection,
The well heater that is closely set in described nook closing member outer wall, reagent in described nook closing member is heated,
The temperature that is electrically connected to described temperature sensor and described well heater respectively, detects according to described temperature sensor controls that described well heater heats the reagent in described nook closing member and the control circuit of temperature control.
Sample needle provided by the utility model, control circuit detects the temperature of reagent in nook closing member by temperature sensor, by well heater, the reagent in nook closing member is heated, control circuit is incubated that to the reagent in nook closing member temperature is controlled in OK range by well heater when the reagent in nook closing member is heated to suitable temperature.Therefore, sample needle provided by the utility model can heat the reagent in sample needle and temperature control.
Description of drawings
The structural representation of the sample needle that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the enlarged drawing of Figure 1A section;
Fig. 3 is the enlarged drawing of Figure 1B section;
The schematic block circuit diagram of the sample needle that Fig. 4 provides for the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only is used for explaining the utility model, be not limited to the utility model.
Simultaneously with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4.
A kind of sample needle comprises: nook closing member 1, be arranged at the needle point 2 of nook closing member 1 lower end, and with the sucking-exhausting device 6 that the upper end of nook closing member 1 is connected, the shell 5 of sheathed nook closing member 1; Also comprise: the temperature sensor 3 that is closely set in the temperature of nook closing member 1 outer wall, detection nook closing member 1 interior reagent, be closely set in nook closing member 1 outer wall, to the well heater 4 that the interior reagent of nook closing member 1 heats, the reagent in the 4 pairs of nook closing members of temperature control heater 1 that are electrically connected to temperature sensor 3 and well heater 4 respectively, detect according to temperature sensor 3 heats and the control circuit 7 of temperature control.
In this sample needle, control circuit 7 detects the temperature of nook closing member 1 interior reagent by temperature sensor 3, heat by the reagent in 4 pairs of nook closing members of well heater, control circuit 7 is incubated that by the reagent in 4 pairs of nook closing members 1 of well heater temperature is controlled in OK range when the reagent in nook closing member 1 is heated to suitable temperature.Therefore, sample needle provided by the utility model can heat the reagent in sample needle and temperature control.
In Fig. 1, this sucking-exhausting device 11 and control circuit 7 adopt same block scheme to represent, it does not represent the concrete structure of sucking-exhausting device 6 and the control circuit 7 of this sample needle.
In the present embodiment, shell 5 comprises the metal sleeve 51 of sheathed nook closing member 1, temperature sensor 3, well heater 4, is sheathed on respectively bottom end cover 52 and the upper end cover 53 of sleeve 51 lower ends and upper end.
In the present embodiment, sample needle also comprises liquid level sensor; Liquid level sensor comprises control circuit 7, nook closing member 1, needle point 2, metal sleeve 51, is connected to the first wire 81 of nook closing member 1 and control circuit 7, is connected to the second wire 82 of metal sleeve 51 and control circuit 7.
This liquid level sensor utilizes metal sleeve 51 and the structure of nook closing member 1 to form electric capacity, when needle point 2(needle point 2 and nook closing member 1 one) when contacting reagent, the electric capacity between metal sleeve 51 and nook closing member 1 will change.Therefore, whether control circuit 7 can enter in reagent liquid by the nook closing member 1 that liquid level sensor detects sample needle, just carries out imbibition by sucking-exhausting device 11 when nook closing member 1 being detected after entering reagent liquid; And, stop sample needle after entering reagent liquid certain depth and continue deep action when nook closing member 1 being detected, prevent striker.Therefore, by this liquid level sensor, can avoid sample needle not touch liquid level and just carry out the bottom (striker) that imbibition or sample needle striker needle point collide the container that holds reagent.
In the present embodiment, sample needle also comprises the temperature protective device 9 that disconnects the power supply of well heater 4 when the interior temperature of reagent of nook closing member 1 is too high; Temperature protective device 9 is arranged in upper end cover 53, is series between control circuit 7 and well heater 4.When the reagent in temperature sensor 3 detects nook closing member 1 is returned to suitable temperature, this temperature protective device 9 recloses, and well heater 4 is returned to normal operation.
In the present embodiment, well heater 4 is close to and is located on nook closing member 1 outer wall.Well heater 4 is close to is located on nook closing member 1 outer wall, can be evenly, fully the reagent in nook closing member 1 is heated.
In the present embodiment, temperature sensor 3 is closely set in nook closing member 1 outer wall lower end.In specific design, temperature sensor 3 can be arranged at nook closing member 1 outer wall any place, can accurately detect the temperature of the reagent in nook closing member 1 by being close to setting.
The above is only the utility model preferred embodiment, is not limited to the utility model, all any modifications of doing within principle of the present utility model, is equal to and replaces and improvement etc., within all should being included in the scope of the utility model protection.
Claims (6)
1. sample needle comprises: nook closing member (1), be arranged at the needle point (2) of described nook closing member (1) lower end, and with the sucking-exhausting device (6) that the upper end of described nook closing member (1) is connected, the shell (5) of sheathed described nook closing member (1); It is characterized in that, also comprise:
Be closely set in described nook closing member (1) outer wall, detect the temperature sensor (3) of the temperature of the interior reagent of described nook closing member (1),
The well heater (4) that is closely set in described nook closing member (1) outer wall, the interior reagent of described nook closing member (1) is heated,
The temperature that is electrically connected to described temperature sensor (3) and described well heater (4) respectively, detects according to described temperature sensor (3) controls that described well heater (4) heats the reagent in described nook closing member (1) and the control circuit (7) of temperature control.
2. sample needle as claimed in claim 1, it is characterized in that, described shell (5) comprises the metal sleeve (51) of sheathed described nook closing member (1), temperature sensor (3), well heater (4), is sheathed on respectively bottom end cover (52) and the upper end cover (53) of described sleeve (51) lower end and upper end.
3. sample needle as claimed in claim 2, is characterized in that, described sample needle also comprises liquid level sensor;
Described liquid level sensor comprises control circuit (7), nook closing member (1), needle point (2), metal sleeve (51), be connected to first wire (81) of described nook closing member (1) and control circuit (7), be connected to second wire (82) of described metal sleeve (51) and control circuit (7).
4. sample needle as claimed in claim 2, is characterized in that, described sample needle also comprises the temperature protective device (9) that disconnects the power supply of described well heater (4) when in described nook closing member (1), temperature of reagent is too high;
Described temperature protective device (9) is arranged in described upper end cover (53), is series between described control circuit (7) and described well heater (4).
5. sample needle as claimed in claim 1, is characterized in that, described well heater (4) is close to and is located on described nook closing member (1) outer wall.
6. sample needle as claimed in claim 1, is characterized in that, described temperature sensor (3) is closely set in described nook closing member (1) outer wall lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723472 CN202994807U (en) | 2012-12-25 | 2012-12-25 | Sampling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723472 CN202994807U (en) | 2012-12-25 | 2012-12-25 | Sampling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994807U true CN202994807U (en) | 2013-06-12 |
Family
ID=48565976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220723472 Expired - Lifetime CN202994807U (en) | 2012-12-25 | 2012-12-25 | Sampling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202994807U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521281A (en) * | 2013-10-23 | 2014-01-22 | 中国科学院声学研究所 | Temperature control pipetting device |
| JP2017037073A (en) * | 2015-08-11 | 2017-02-16 | シーメンス ヘルスケア ダイアグノスティクス プロダクツ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Pipetting device having two temperature sensors |
| CN108982894A (en) * | 2018-09-20 | 2018-12-11 | 武汉纺织大学 | A kind of thermostatic type sample introduction needle for level detection |
| CN109932522A (en) * | 2019-03-27 | 2019-06-25 | 国瑞（天津）医疗科技有限公司 | A kind of batch type sample adding device for medicine detection |
| CN112147346A (en) * | 2019-06-28 | 2020-12-29 | 深圳迈瑞生物医疗电子股份有限公司 | Sample adding needle temperature control method, calibration method and system thereof |
| WO2024000729A1 (en) * | 2022-07-01 | 2024-01-04 | 苏州长光华医生物医学工程有限公司 | Sample adding needle apparatus having preheating function |
-
2012
- 2012-12-25 CN CN 201220723472 patent/CN202994807U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521281A (en) * | 2013-10-23 | 2014-01-22 | 中国科学院声学研究所 | Temperature control pipetting device |
| JP2017037073A (en) * | 2015-08-11 | 2017-02-16 | シーメンス ヘルスケア ダイアグノスティクス プロダクツ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Pipetting device having two temperature sensors |
| CN108982894A (en) * | 2018-09-20 | 2018-12-11 | 武汉纺织大学 | A kind of thermostatic type sample introduction needle for level detection |
| CN109932522A (en) * | 2019-03-27 | 2019-06-25 | 国瑞（天津）医疗科技有限公司 | A kind of batch type sample adding device for medicine detection |
| CN112147346A (en) * | 2019-06-28 | 2020-12-29 | 深圳迈瑞生物医疗电子股份有限公司 | Sample adding needle temperature control method, calibration method and system thereof |
| CN112147346B (en) * | 2019-06-28 | 2024-02-20 | 深圳迈瑞生物医疗电子股份有限公司 | Sample adding needle temperature control method, calibration method and system thereof |
| WO2024000729A1 (en) * | 2022-07-01 | 2024-01-04 | 苏州长光华医生物医学工程有限公司 | Sample adding needle apparatus having preheating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |