CN212037597U - Handheld sampling clamping device capable of prompting pressure range - Google Patents
Handheld sampling clamping device capable of prompting pressure range Download PDFInfo
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- CN212037597U CN212037597U CN202020376017.8U CN202020376017U CN212037597U CN 212037597 U CN212037597 U CN 212037597U CN 202020376017 U CN202020376017 U CN 202020376017U CN 212037597 U CN212037597 U CN 212037597U
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Abstract
The utility model discloses a but hand-held type sampling clamping device of suggestion pressure range, including collection piece and the handle that connects gradually, it is used for gathering the sample to gather the piece, be equipped with forced induction mechanism and indicating mechanism in the handle, forced induction mechanism is connected with the collection piece for pressure information when gathering the sample is gathered in the response, and sends pressure information to indicating mechanism, through indicating mechanism indication pressure range. This technical scheme is through setting up the pressure range that the sample was gathered in the response of forced induction mechanism to through the scope of indicating mechanism suggestion pressure, whether the operator of being convenient for judges the pressure of gathering the sample fast is suitable, thereby dynamics when standardizing the operator and carrying out the sample collection reduces uncomfortable sense when patient's inspection, guarantees quality and patient's comfort, security of sample.
Description
Technical Field
The utility model discloses medical instrument's technical field, more specifically relates to a but hand-held type sampling clamping device of suggestion pressure range.
Background
Sampling such as swabs is a common and important method in clinical practice diagnosis, and especially in some respiratory infectious diseases, early diagnosis, early isolation and early treatment are effective ways to effectively prevent disease transmission. The standard sampling method is one of the important prerequisites for ensuring the positive rate of the inspection result.
The traditional sampling adopts the sampling stick to directly stretch to the diseased part of the human body to collect the sample, but the sampling can not prompt whether the collection force is proper or not. The standard sampling method comprises accurate and in-place acquisition part, moderate force application, avoidance of touching of nearby tissues and the like, but the moderate force application is proper only when the force is large, and different operators have different understanding and habits. Too much force causes discomfort, injury and the like of the patient, and too little force causes the quality reduction of the collected sample.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at overcoming above-mentioned prior art's at least one defect, provide a but hand-held type sampling clamping device of suggestion pressure range for solve the unable suitable technical problem of judgement of the dynamics of gathering.
The utility model adopts the technical proposal that: the utility model provides a but hand-held type sampling clamping device of suggestion pressure range, is including the collection piece and the handle that connect gradually, it is used for gathering the sample to gather the piece, be equipped with forced induction mechanism and indicating mechanism in the handle, forced induction mechanism is connected with gathering the piece for pressure information when gathering the sample is gathered in the response, and gives indicating mechanism with pressure information transfer, instructs the pressure range through indicating mechanism.
In the technical scheme, the collecting piece is mainly used for collecting samples of parts to be detected of a human body, so that pathological examination is facilitated, and secondary damage to the detected parts can be caused due to excessive force during sample collection, so that discomfort of a patient is caused; if the force is too small, the quality of the collected sample is reduced, and the detection accuracy is not high. Therefore, it is very important to control the acquisition strength.
Wherein, gather the piece and can dismantle with the handle and be connected, be convenient for to handle reuse, reduce unnecessary cost expenditure, be favorable to the environmental protection. The collecting piece comprises a contact part and a connecting part, and the contact part is contacted with a collected sample and used for sampling; the connecting part is respectively connected with the contact part and the handle, so that the deeper part can be conveniently sampled.
The pressure sensing mechanism is used for sensing the pressure when gathering a sample, indicating mechanism is used for showing the pressure range that pressure sensing mechanism sensed through different instruction states to the scope of pressure is indicateed to the operator, and the operator of being convenient for controls the dynamics of operation better, guarantees the quality of sample and patient's security, travelling comfort.
Furthermore, the indicating mechanism comprises a plurality of groups of indicating circuits, the indicating circuits of different groups correspond to different pressure ranges, the pressure sensing mechanism is connected with the indicating circuits corresponding to the pressure ranges according to the sensed pressure ranges, and the indicating mechanism displays different working states and prompts the pressure ranges through different connected indicating circuits.
In the technical scheme, because the connected indicating circuits are different, the working states of the indicating mechanisms are different, and the range of the pressure can be judged through the working states displayed by the indicating mechanisms, so that whether the pressure range is proper or not can be prompted, the force when an operator collects a sample is standardized, and the discomfort of a patient during examination is reduced.
Further, the pressure sensing mechanism comprises a sliding block unit and an elastic piece, the elastic piece is arranged at the bottom of the sliding block unit, the top of the sliding block unit is connected with the collecting piece, pressure generated when the collecting piece collects a sample acts on the sliding block unit in a reaction mode, the sliding block unit slides towards the direction of the elastic piece, the elastic piece is compressed, after the sliding block unit slides to a certain position, an indicating circuit corresponding to the position of the sliding block unit is connected, and the pressure range is prompted through the displayed working state of the indicating mechanism.
In the technical scheme, the pressure of the collected sample pushes the sliding block unit to slide, the larger the pressure is, the farther the sliding distance of the sliding block unit is, and the sliding block unit enters the indicating circuit of the indicating mechanism when sliding and is communicated with the indicating circuit in the corresponding pressure range, so that the corresponding indicating mechanism works, and the pressure range is prompted to an operator.
On one hand, the elastic piece can push the sliding block unit to restore the original position after the collection piece finishes the sample collection operation; on the other hand, the initial pressure value of the sliding block unit can be limited, and the force during sampling is ensured to be more accurate and in place; meanwhile, the initial elastic force of the elastic piece can be adjusted, and then the initial pressure value of the sliding block unit in sliding can be adjusted, so that the requirements for sampling different parts are met, and the application range is expanded.
The pressure sensing mechanism in the technical scheme is not limited to the sliding distance of the sliding unit to achieve the range of the prompting pressure, and the range of the prompting pressure can be achieved through modes of an electronic sensor, digital display and the like.
Wherein, the elastic component is a spring.
Furthermore, a pressure range lower limit and a pressure range upper limit are arranged on the indicating circuit, the pressure sensing mechanism is communicated with different groups of indicating circuits in the position from the pressure range lower limit to the pressure range upper limit, and the indicating mechanism displays the corresponding working state according to the communicated indicating circuits to prompt the pressure range.
In the technical scheme, when the sliding block unit slides to the position of the lower limit of the pressure range, the indicating circuit corresponding to the lower limit of the pressure range is switched on, and the indicating mechanism displays the working state of the indicating circuit corresponding to the lower limit of the pressure range; when the sampling pressure is continuously increased and the sliding block unit continuously slides to the position of the upper limit of the pressure range, the sliding block unit is communicated with the indicating circuit corresponding to the upper limit of the pressure range, and the working state displayed by the indicating mechanism is different from the working state displayed when the pressure range is limited, so that the pressure range can be quickly judged.
Further, the pressure sensing mechanism further comprises a starting point limiting piece and an end point limiting piece, wherein the starting point limiting piece and the end point limiting piece are respectively arranged at the starting point position and the end point position of the sliding stroke of the sliding block unit and used for limiting the sliding distance of the sliding block unit.
In this technical solution, the end-point limiting member is correspondingly disposed at an upper limit position of a pressure range of the indicating circuit. Because when the pressure range upper limit, the pressure of gathering the sample has surpassed suitable dynamics scope, sets up the terminal point locating part in the position of pressure range upper limit and can effectively remind the operator to control the dynamics, uncomfortable sense when reducing patient's inspection.
Furthermore, a protrusion is arranged on the sliding block unit, and when the sliding block unit slides, the protrusion slides in the indicating circuit and is used for controlling the switch of the corresponding indicating circuit to be switched on or switched off.
In the technical scheme, when the bulge slides in the indicating circuit, the indicating circuit with a smaller pressure range is firstly switched on according to the pressure, and the pressure range is prompted by the working state of the indicating mechanism; when the bulge continues to slide, the indicating circuit with a larger pressure range is connected, and the pressure range is prompted to be different through different working states of the indicating mechanism.
When the bulges respectively slide to the lower limit position and the upper limit position of the pressure range in the indicating circuit, the bulges are respectively communicated with different groups of indicating circuits.
Further, the indicating mechanism is an indicating lamp, and when the indicating circuits are switched on differently, the colors of the lighted indicating lamps are different.
This technical scheme shows different colours through the pilot lamp, can judge the pressure range of gathering the sample fast, directly perceivedly.
Wherein, this technical scheme not only is limited to the scope through the colour suggestion pressure of pilot lamp, and it can also be sound indicator, through the scope of suggestion pressure such as the sound of different speech rates or different statements warning.
Furthermore, the indicator light comprises at least two colors, each color corresponds to one group of indicator circuits, when the pressure sensing mechanism is communicated with the first group of indicator circuits, only the indicator light with the first color is lightened, and the pressure of the acquisition part for acquiring the sample is in a set range; when the pressure sensing mechanism is connected with the second group of indicating circuits, at least the indicating lamp with the second color is lightened, and the pressure of the collecting piece for collecting the sample is larger than the set range.
In the technical scheme, when the pressure sensing mechanism is connected with the second group of indicating circuits, the second group of indicating circuits can be connected on the basis of simultaneously connecting the first group of indicating circuits, and the emitted light beams are simultaneously lightened by the indicating lamps with the first color and the indicating lamps with the second color, so that the pressure of the sample collected by the collecting piece reaches the upper limit of the set pressure range; in addition, the technical scheme can also be as follows: when the pressure sensing mechanism is connected with the second group of indicating circuits, the first group of indicating circuits are disconnected, only the indicating lamp with the second color is lightened, and the upper limit of the pressure range for collecting the sample by the collecting part is reached by lightening the indicating lamp with the second color.
Further, the bottom of the elastic member is provided with an adjusting member for adjusting the initial length of the elastic member, the adjusting member adjusts the initial length of the elastic member by compressing the elastic member, and the shorter the initial length of the elastic member is, the greater the elastic force is, so that the greater the initial pressure value required for moving the sliding unit is.
When the elastic piece is compressed, an elastic force is generated, and the elastic force counteracts the sliding block unit, so that the sliding block unit can be abutted against the position of the starting point limiting piece, and an initial pressure value exists in the sliding block unit. Because the pressure when gathering the piece and gathering the sample is greater than initial pressure value, the slider unit slides certain distance under the effect of sampling pressure, and then switches on indicating mechanism's different group indicating circuit.
In this technical scheme, set for the initial pressure value of sliding unit through compression elastic component to adapt to different sampling demands, the adjusting part is used for adjusting the initial length of elastic component, and the initial length of elastic component is different, and then the initial pressure value of sliding unit is different.
Furthermore, a threaded passage is arranged in the handle, the adjusting piece is screwed into the threaded passage, and the initial length of the elastic piece is adjusted by controlling the screwing depth of the adjusting piece into the threaded passage.
Furthermore, the front end of the handle is provided with an illuminating light source.
In the technical scheme, the front end of the handle is provided with the lighting source, so that the part for collecting the sample can be observed conveniently without other extra tools.
Further, a switch and a switch indicating light source are further arranged on the handle, the switch is connected with the indicating mechanism and the switch indicating power supply, and when the switch is turned on, the switch indicating light source is lightened to indicate that the switch is in a switch-on state.
The pressure sensing mechanism is characterized by further comprising a bidirectional switch, the double-open switch is divided into a first switch and a second switch, and the pressure sensing mechanism is used for selectively switching on the first switch or the second switch according to different sensed pressure ranges; the indicating mechanisms are respectively arranged on the circuits of the first switch and the second switch, and when different switches are switched on, different indicating mechanisms work to display different working states, so that different pressure ranges are prompted.
As another embodiment of the present technical solution, in the present technical solution, a bidirectional switch is provided, a pressure sensing mechanism selectively turns on a first switch or a second switch according to a sensed pressure range, a set of indicating mechanisms is correspondingly provided on the first switch and the second switch, and the pressure range of a collected sample can be quickly determined according to the state of the operating indicating mechanism.
Compared with the prior art, the beneficial effects of the utility model are that:
this technical scheme is through setting up the pressure range that the sample was gathered in the response of forced induction mechanism to through the scope of indicating mechanism suggestion pressure, whether the operator of being convenient for judges the pressure of gathering the sample fast is suitable, thereby dynamics when standardizing the operator and carrying out the sample collection reduces uncomfortable sense when patient's inspection, guarantees quality and patient's comfort, security of sample.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic structural diagram of the slider unit of the present invention when the slider unit is located at the position of the starting point locating part.
Fig. 3 is a schematic structural diagram of the slider unit of the present invention when the slider unit is in the lower limit of the pressure range.
Fig. 4 is a schematic structural diagram of the slider unit according to the present invention when the slider unit is in the upper limit of the pressure range.
Fig. 5 is a schematic circuit diagram of embodiment 1 of the present invention.
Detailed Description
The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1, 2 and 5, a handheld sampling clamping device capable of prompting a pressure range comprises a collecting part 200 and a handle 300 which are connected in sequence, wherein the collecting part 200 is used for collecting a sample, a pressure sensing mechanism 400, an indicating mechanism 310, a switch 320 and a power supply installation position 330 are arranged in the handle 300, the pressure sensing mechanism 400 is connected with the collecting part 200 and used for sensing pressure information when the collecting part 200 collects the sample, transmitting the pressure information to the indicating mechanism 310 and indicating the pressure range through the indicating mechanism 310.
Wherein, gather piece 200 and handle 300 and can dismantle the connection, be convenient for to handle 300 reuse, reduce unnecessary cost expenditure, be favorable to the environmental protection.
The front end of the handle 300 is provided with an illumination light source 600. By providing the illumination light source 600 at the front end of the handle 300, the site where the sample is collected can be easily observed without using any additional tool.
The power supply mounting position 330 is used for mounting a battery, such as a button battery; the power supply of the embodiment can be provided by a battery, and can also be directly connected with an alternating current power supply, so that the power supply is convenient to use in different occasions.
In this embodiment, the collecting member 200 is a pharyngeal swab, and the collecting member 200 includes a contact portion and a connecting portion, wherein the contact portion is in contact with a collected sample for sampling; the connection part connects the contact part and the handle 300, respectively, so that sampling of a deeper part is facilitated.
In this embodiment, the indication mechanism 310 is an indication lamp, the indication lamp 310 includes two groups of indication circuits 500, the pressure ranges corresponding to the different groups of indication circuits 500 are different, and when the turned-on indication circuits 500 are different, the colors of the turned-on indication lamps are different. The indicator lights comprise two colors, when the pressure sensing mechanism 400 is connected with the first group of indicator circuits 500, only the indicator light with the first color is lighted, and the pressure of the collecting piece 200 for collecting the sample is in a set range; when the pressure sensing mechanism 400 is connected to the second group of indicating circuits 500, the first group of indicating circuits 500 are also in a connected state, the indicating lamps of the first color and the indicating lamps of the second color are simultaneously lighted, and a light beam with the two indicating lamps simultaneously lighted is displayed, which indicates that the pressure of the collecting member 200 for collecting the sample reaches the upper limit of the set pressure range.
In this embodiment, the indicating circuit 500 is provided with a lower pressure range limit and an upper pressure range limit, the pressure sensing mechanism 400 is connected to different groups of indicating circuits 500 within a range from the lower pressure range limit to the upper pressure range limit of the indicating circuit 500, and the indicating mechanism 310 displays a corresponding working state according to the connected indicating circuit 500 to prompt a pressure range.
In this embodiment, the pressure sensing mechanism 400 further includes a start-point limiting member 401 and an end-point limiting member 402, where the start-point limiting member 401 and the end-point limiting member 402 are respectively disposed at a start point and an end point of a sliding stroke of the slider unit 410, and are used to limit a sliding distance of the slider unit 410. The end-limiting member 402 is correspondingly disposed at the upper limit position of the pressure range of the indicating circuit 500.
As shown in fig. 2 to 5, in this embodiment, the pressure sensing mechanism 400 includes a slider unit 410 and an elastic member 420, the elastic member 420 is disposed at the bottom of the slider unit 410, the top of the slider unit 410 is connected to the collecting member 200, the pressure generated when the collecting member 200 collects a sample is transmitted to the slider unit 410, the slider unit 410 slides toward the elastic member 420, the elastic member 420 is compressed, and when the slider unit slides to a position of the lower limit of the pressure range, the first group of indicating circuits 500 is turned on, and the indicating lamp displays a color a; when the slider unit 410 slides to the position of the upper limit of the pressure range, the second group indicating circuit 500 is turned on, and the mixed color when the indicator light color a and the color B are simultaneously lighted indicates the range of the pressure by the different color states of the indicating mechanism 310.
In this embodiment, the longer the sliding distance of the slider unit 410 is, the greater the pressure when the sample is collected is, and the slider unit 410 enters the indicating circuit 500 of the indicating mechanism 310 when sliding, and is connected to the indicating circuit 500 in the corresponding pressure range, so that the corresponding indicating mechanism 310 operates, thereby presenting the pressure range to the operator.
In this embodiment, the elastic member 420 is a spring. The bottom of the elastic member 420 is provided with an adjusting member 430 for adjusting the initial length of the elastic member 420, the adjusting member 430 adjusts the initial length of the elastic member 420 by compressing the elastic member 420, and the shorter the initial length of the elastic member 420 is, the greater the elastic force is, so that the greater the initial pressure value required to move the sliding unit 400 is.
When the elastic member 420 is compressed, an elastic force is generated, and the elastic force acts against the slider unit, so that the slider unit 400 can be abutted against the position of the start-point limiting member 401, and the slider unit 400 has an initial pressure value. Because the pressure when gathering the piece 200 and gathering the sample is greater than the initial pressure value, slider unit 400 slides certain distance under the effect of sampling pressure, and then switches on the different group indicating circuit of indicating mechanism.
In this embodiment, a threaded passage is formed in the handle 300, the adjusting member 430 is screwed into the threaded passage, and the initial length of the elastic member 420 is adjusted by controlling the depth of the adjusting member 430 screwed into the threaded passage.
In this embodiment, the slider unit 410 is provided with a protrusion 411, and when the slider unit 410 slides, the protrusion 411 slides in the indication circuit 500, so as to control the switch of the corresponding indication circuit 500 to be turned on or off.
In the technical scheme, when the protrusion 411 slides in the indicating circuit 500, the indicating circuit 500 with a smaller pressure range is firstly switched on according to the pressure, and the pressure range is prompted by the working state of the indicating mechanism 310; when the protrusion 411 continues to slide, the indicating circuit 500 with a large pressure range is connected again, and the indicating mechanism 310 indicates that the pressure range is different according to different working states.
As shown in fig. 2, the protrusion 411 on the slider unit 410 is in an initial state, and in the initial state, the protrusion 411 is located at the position of the start-point stopper 401; when the sample is collected, the force applied to the detection portion by the collecting member 200 counteracts the slider unit 410, thereby pushing the slider unit 410 to move toward the end-stop member 402; the protrusion 411 slides within the indicating circuit 500.
As shown in fig. 3 and 5, when the protrusion 411 slides to the lower limit position of the pressure range, the indicating circuit of the first indicator lamp is turned on, and the indicator lamp displays the color a.
As shown in fig. 4 and 5, when the pressure for collecting the sample is continuously applied, the protrusion 411 continuously slides to the upper limit position of the pressure range, and at the same time, the indicating circuit of the first indicator lamp is turned on, and the indicating circuit of the second indicator lamp is also turned on, and the indicator lamp displays the mixed color of the color a and the color B, thereby indicating the pressure range to the operator. Since the end-point stopper 402 is provided at the upper limit position of the pressure range, the protrusion 411 stops moving when moving to the upper limit position of the pressure range, so as to indicate that the pressure range reaches the maximum.
Example 2
The present embodiment is different from embodiment 1 in that: when the pressure sensing mechanism 400 is connected to the second indicating circuit 500, the first indicating circuit 500 is also in an off state, and only the second color indicator is lighted, indicating that the pressure of the collecting member 200 for collecting the sample reaches the upper limit of the set pressure range.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a but hand-held type sampling clamping device of suggestion pressure range which characterized in that, is including the collection piece and the handle that connect gradually, it is used for gathering the sample to gather the piece, be equipped with forced induction mechanism and indicating mechanism in the handle, forced induction mechanism is connected with the collection piece for pressure information when the sample is gathered in the response, and give indicating mechanism with pressure information transfer, instruct the pressure range through indicating mechanism.
2. The handheld sampling clamping device capable of prompting the pressure range according to claim 1, wherein the indicating mechanism comprises a plurality of groups of indicating circuits, the indicating circuits in different groups correspond to different pressure ranges, the pressure sensing mechanism is connected with the indicating circuits corresponding to the pressure ranges according to the sensed pressure ranges, and the indicating mechanism displays different working states and prompts the pressure ranges through the different connected indicating circuits.
3. The handheld sampling clamping device capable of prompting the pressure range according to claim 2, wherein the pressure sensing mechanism comprises a slider unit and an elastic piece, the elastic piece is arranged at the bottom of the slider unit, the top of the slider unit is connected with the collecting piece, pressure generated when the collecting piece collects a sample is reacted on the slider unit, the slider unit slides towards the elastic piece to compress the elastic piece, and after the slider unit slides to a certain position, an indicating circuit corresponding to the position is switched on, and the pressure range is prompted through the displayed working state of the indicating mechanism.
4. The handheld sampling clamping device capable of prompting the pressure range according to claim 2 or 3, wherein the indicating circuit is provided with a lower pressure range limit and an upper pressure range limit, the pressure sensing mechanism is communicated with different groups of indicating circuits in the position from the lower pressure range limit to the upper pressure range limit, and the indicating mechanism displays the corresponding working state according to the communicated indicating circuits to prompt the pressure range.
5. The handheld sampling clamping device capable of indicating a pressure range according to claim 3, wherein the pressure sensing mechanism further comprises a start-point limiting member and an end-point limiting member, the start-point limiting member and the end-point limiting member are respectively disposed at a start-point position and an end-point position of a sliding stroke of the slider unit for limiting a sliding distance of the slider unit.
6. The handheld sampling clamping device capable of indicating the pressure range as claimed in claim 3, wherein a protrusion is provided on the slider unit, and when the slider unit slides, the protrusion slides in the indicating circuit to control the switch of the corresponding indicating circuit to be turned on or off.
7. The handheld sampling clamping device capable of indicating a pressure range according to claim 2, wherein the indicating mechanism is an indicator light, and when the indicating circuit is switched on, the color of the indicator light is different.
8. The handheld sampling clamping device capable of indicating the pressure range according to claim 7, wherein the indicator light comprises at least two colors, each color corresponds to one group of indicator circuits, when the pressure sensing mechanism is connected with the first group of indicator circuits, only the indicator light with the first color is lighted, and the pressure of the sampling part for sampling is in the set range; when the pressure sensing mechanism is connected with the second group of indicating circuits, at least the indicating lamp with the second color is lightened, and the pressure of the collecting piece for collecting the sample is larger than the set range.
9. The handheld sampling clamping device capable of indicating the pressure range according to claim 3, wherein the bottom of the elastic member is provided with an adjusting member for adjusting the initial length of the elastic member, the adjusting member adjusts the initial length of the elastic member by compressing the elastic member, and the shorter the initial length of the elastic member is, the larger the elastic force is, so that the larger the initial pressure value is required for moving the sliding unit.
10. The handheld sampling clamping device capable of indicating a pressure range according to claim 1, wherein an illumination light source is arranged at the front end of the handle.
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| CN202020376017.8U CN212037597U (en) | 2020-03-23 | 2020-03-23 | Handheld sampling clamping device capable of prompting pressure range |
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| CN202020376017.8U CN212037597U (en) | 2020-03-23 | 2020-03-23 | Handheld sampling clamping device capable of prompting pressure range |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111297405A (en) * | 2020-03-23 | 2020-06-19 | 广州医科大学附属第一医院 | Handheld sampling clamping device capable of prompting pressure range |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111297405A (en) * | 2020-03-23 | 2020-06-19 | 广州医科大学附属第一医院 | Handheld sampling clamping device capable of prompting pressure range |
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