CN113040770A - Multifunctional finger arteriovenous puncture probe - Google Patents
Multifunctional finger arteriovenous puncture probe Download PDFInfo
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- CN113040770A CN113040770A CN202110264383.3A CN202110264383A CN113040770A CN 113040770 A CN113040770 A CN 113040770A CN 202110264383 A CN202110264383 A CN 202110264383A CN 113040770 A CN113040770 A CN 113040770A
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- 239000000523 sample Substances 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 210000004204 blood vessel Anatomy 0.000 abstract description 32
- 230000008859 change Effects 0.000 abstract description 10
- 210000004369 blood Anatomy 0.000 abstract description 6
- 239000008280 blood Substances 0.000 abstract description 6
- 230000017531 blood circulation Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 210000003205 muscle Anatomy 0.000 abstract description 2
- 210000001367 artery Anatomy 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000002583 angiography Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 238000012631 diagnostic technique Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150748—Having means for aiding positioning of the piercing device at a location where the body is to be pierced
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a multifunctional finger arteriovenous puncture probe, and relates to the technical field of medical auxiliary equipment. The invention comprises a controller, a connecting sleeve, a detection finger sleeve and a connecting lead, wherein the surface of the detection finger sleeve is provided with a photoelectric probe, and a photoresistor and a light source generator are arranged in the detection finger sleeve; the side surface of the detection finger sleeve is provided with a telescopic sleeve, and a solenoid and a capillary conduit are arranged in the telescopic sleeve to form a slide rheostat structure. The invention uses the photoelectric probe, uses the light source generator to emit laser to the blood vessel, and transmits back to the photoresistor after reflecting by the vessel wall, blood and muscle tissue, and distinguishes the arteriovenous blood vessel according to the intensity change of the reflected light caused by the different blood flow rate of the arteriovenous blood vessel, so that the resistance value of the photoresistor is changed regularly; through setting up the slip rheostat structure of constitution between capillary pipe and the solenoid, utilize the displacement between puncture needle puncture blood vessel pushing down between capillary pipe and the flexible cover to change the resistance, and then change into the signal of telecommunication, the indirect display blood vessel degree of depth.
Description
Technical Field
The invention belongs to the technical field of medical auxiliary equipment, and particularly relates to a multifunctional finger arteriovenous puncture probe.
Background
Puncture is a diagnostic technique in which a puncture needle is inserted into a body cavity to extract secretions for testing, gas or contrast agents are injected into the body cavity to perform contrast examination, or medicines are injected into the body cavity. The purpose of puncture is to take blood for examination, blood transfusion, fluid infusion and to put in a catheter for angiography. As is known, in blood drawing tests, blood is drawn mainly from veins, but because arteriovenous blood vessels are densely distributed in a human body and partially go deep into subcutaneous tissues, the blood vessels are difficult to be directly distinguished by naked eyes, and blood vessel selection errors are easy to occur during puncture, so that the puncture is influenced; meanwhile, because the depth of the blood vessels is different and unknown, the deviation is easy to occur when the medical staff operates; therefore, in order to solve the existing problems in puncturing, a multifunctional finger arteriovenous puncturing probe is designed.
Disclosure of Invention
The invention aims to provide a multifunctional finger arteriovenous puncture probe, which solves the problem that the conventional puncture process lacks a device for distinguishing and selecting the depth of an arteriovenous blood vessel from the depth of a blood vessel in a vehicle.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a multifunctional finger arteriovenous puncture probe, which comprises a controller, a connecting sleeve and a detection finger sleeve, wherein the controller, the connecting sleeve and the detection finger sleeve are sequentially adhered; a connecting lead is welded between the controller and the detection finger sleeve, and the connecting sleeve is in nested fit with the connecting lead;
an adjusting groove is formed in one end face of the detection finger sleeve, a photoelectric probe is hinged to the inner surface of the adjusting groove, a photoresistor and a plurality of light source generators are welded on one surface of the photoelectric probe, the photoresistor and the light source generators are electrically connected with the controller, wherein the light source generators emit laser light sources, the laser light sources are transmitted into the photoresistor after reflection and refraction, the resistance value of the photoresistor is changed, potential change inside the controller is caused, and an electric signal is formed and used for displaying arteriovenous blood vessels in a distinguishing mode;
a connecting guide block is adhered to one side face of the detection finger sleeve, a telescopic sleeve is welded to one side face of the connecting guide block, a capillary guide pipe is installed in the telescopic sleeve, and the capillary guide pipe is in sliding fit with the telescopic sleeve; the inner surface of the telescopic sleeve is welded with a solenoid, the solenoid is in contact fit with a capillary guide pipe, and the capillary guide pipe is connected with the capillary guide pipe; the solenoid forms a sliding rheostat structure, and the capillary guide tube and the solenoid are displaced by pressing down the detection finger sleeve to cause potential change, so that the depth of the blood vessel can be measured.
Furthermore, a puncture needle is welded on the inner surface of the telescopic sleeve, the capillary guide tube and the puncture needle are in nested fit and are in sliding fit with each other, the puncture needle is inserted into skin tissues of a patient until the blood vessel is reached, and the puncture needle and the capillary guide tube are matched to detect the depth of the blood vessel.
Further, the inside control chamber of having seted up of controller, control chamber inner surface bolt has connect control panel, control panel upper surface welding has vibrating motor, and both electric connection, wherein according to the difference of arteriovenous blood vessel blood flow velocity, the resistance change law of photo resistance is also different, and when detecting arterial blood vessel, vibrating motor control circuit switches on and starts, prompts the user.
Further, the controller is internally provided with a battery, the battery is electrically connected with the control panel, and the battery is used for providing energy for the whole device.
Furthermore, a display screen is mounted on the upper surface of the controller and electrically connected with the control panel, wherein a light emitting diode is arranged in the display screen, and when arterial blood vessels are detected, red light is emitted, and when venous blood vessels are detected, blue light is emitted; the lower surface of the controller is adhered with two fixing belts which are of a magic tape structure and are used for being fixedly worn on fingers of a user.
Furthermore, connecting wire is the spiral structure, the adapter sleeve is flexible tubular structure, through the folding cooperation of adapter sleeve between controller and the detection dactylotheca, ensure to buckle in a flexible way along with finger action between controller and the detection dactylotheca, avoid because of mechanical structure image operator's detection sensitivity.
Furthermore, the photoelectric probe is matched with the adjusting groove in a folding way, so that the optimal detection point can be selected according to the skin surface condition structure of the tested person; the photoresistor and the light source generator are electrically connected with the control panel.
Furthermore, a finger groove is formed in one surface of the detection finger sleeve and used for protecting the finger tip of an operator, meanwhile, the detection finger sleeve can be prevented from being in direct contact with a patient to cause cross infection, and the solenoid is electrically connected with the control panel.
The invention has the following beneficial effects:
the invention uses the photoelectric probe, uses the light source generator to emit laser to the blood vessel, and transmits back to the photoresistor after reflecting by the vessel wall, blood and muscle tissue, and distinguishes the arteriovenous blood vessel according to the intensity change of the reflected light caused by the different blood flow rate of the arteriovenous blood vessel, so that the resistance value of the photoresistor is changed regularly; in addition, a sliding rheostat structure is formed between the capillary guide tube and the solenoid, and the resistance value is changed by utilizing the displacement between the capillary guide tube and the telescopic sleeve when the puncture needle punctures the blood vessel and is pressed down, so that the displacement is converted into an electric signal, the depth of the blood vessel is indirectly displayed, and an auxiliary effect is provided for the puncture operation of medical personnel.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of a multifunctional finger arteriovenous puncture probe of the present invention;
FIG. 2 is a partial view of portion A of FIG. 1;
FIG. 3 is a top view of a multi-functional finger arteriovenous puncture probe of the present invention;
FIG. 4 is a schematic structural view of section B-B of FIG. 3;
FIG. 5 is a schematic structural view of section C-C of FIG. 3;
fig. 6 is a partial view of portion D of fig. 5.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a controller; 2. connecting sleeves; 3. a detection finger sleeve; 4. connecting a lead; 301. an adjustment groove; 302. a photoelectric probe; 3021. a photoresistor; 3022. a light source generator; 303. connecting a guide block; 3031. a telescopic sleeve; 3032. a capillary conduit; 3033. a solenoid; 3034. puncturing needle; 101. a control chamber; 1011. a control panel; 1012. a vibration motor; 102. a battery; 103. a display screen; 104. fixing belts; 304. a finger groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, the invention relates to a multifunctional finger arteriovenous puncture probe, which comprises a controller 1, a connecting sleeve 2 and a detection finger sleeve 3, wherein the controller 1, the connecting sleeve 2 and the detection finger sleeve 3 are sequentially adhered; a connecting lead 4 is welded between the controller 1 and the detection finger sleeve 3, and the connecting sleeve 2 is in nested fit with the connecting lead 4;
an adjusting groove 301 is formed in one end face of the detection finger sleeve 3, a photoelectric probe 302 is hinged to the inner surface of the adjusting groove 301, a photosensitive resistor 3021 and a plurality of light source generators 3022 are welded to one surface of the photoelectric probe 302, the photosensitive resistor 3021 and the light source generators 3022 are electrically connected with the controller 1, the light source generators 3022 emit laser light sources, the laser light sources are reflected and refracted and then are transmitted into the photosensitive resistor 3021, the resistance value of the laser light sources is changed, potential change inside the controller 1 is caused, and electric signals are formed and used for displaying arteriovenous blood vessels in a distinguishing mode;
one side surface of the detection fingerstall 3 is adhered with a connecting guide block 303, one side surface of the connecting guide block 303 is welded with a telescopic sleeve 3031, a capillary conduit 3032 is installed inside the telescopic sleeve 3031, and the capillary conduit 3032 is in sliding fit with the telescopic sleeve 3031; the inner surface of the telescopic sleeve 3031 is welded with a solenoid 3033, the solenoid 3033 is in contact fit with a capillary conduit 3032, and the capillary conduit 3032 is connected with the capillary conduit 3032; the solenoid 3033 constitutes a sliding rheostat structure, and the capillary conduit 3032 and the solenoid 3033 are displaced by pressing down the detection finger sleeve 3 to cause potential change, so that the depth of the blood vessel can be measured.
Preferably, the puncture needle 3034 is welded on the inner surface of the telescopic sleeve 3031, the capillary conduit 3032 is nested and matched with the puncture needle 3034, the puncture needle 3034 is mutually and slidably matched, the puncture needle 3034 is inserted into skin tissue of a patient to reach a blood vessel, and the depth of the blood vessel is detected by matching with the capillary conduit 3032.
Preferably, controller 1 is inside to be seted up control chamber 101, and control panel 1011 has been pegged graft to control chamber 101 internal surface, and the welding of control panel 1011 upper surface has vibrating motor 1012, and both electric connection, and wherein according to the difference of arteriovenous blood vessel blood flow velocity, the resistance change law of photo resistor 3021 is also different, and when detecting arterial blood vessel, vibrating motor 1012 control circuit switches on and starts, indicates to the user.
Preferably, the battery 102 is installed inside the controller 1, and the battery 102 is electrically connected to the control panel 1011, so that the battery 102 is used to provide power for the whole device.
Preferably, the display screen 103 is installed on the upper surface of the controller 1, and the display screen 103 is electrically connected with the control panel 1011, wherein the display screen is internally provided with a light emitting diode, and emits red light when arterial blood vessels are detected and emits blue light when venous blood vessels are detected; the lower surface of the controller 1 is adhered with two fixing bands 104, and the fixing bands 104 are of a hook and loop fastener structure and are used for being fixed on fingers of a user.
Preferably, connecting wire 4 is the spiral structure, and adapter sleeve 2 is flexible tubular structure, through adapter sleeve 2 folding cooperation between controller 1 and the detection dactylotheca 3, ensures to buckle in a flexible way along with finger action between controller 1 and the detection dactylotheca 3, avoids because of mechanical structure image operator's detection sensitivity.
Preferably, the photoelectric probe 302 is matched with the adjusting groove 301 in a folding way, so that the optimal detection point can be selected according to the skin surface condition structure of the measured person; the photo resistor 3021 and the light source generator 3022 are electrically connected to the control panel 1011.
Preferably, the detecting finger sleeve 3 has a finger slot 304 formed on a surface thereof for protecting the finger tip of the operator, and meanwhile, the solenoid 3033 is electrically connected to the control panel 1011 to avoid cross infection caused by direct contact with the patient.
Referring to fig. 1-6, it should be further explained that the vibration motor 1012 of the present invention is a CDX1034 brushed dc motor, when in actual operation, because the blood flow of the artery generates regular changes along with the heartbeat, at this time, the photoelectric probe 302 detects the decrease of the reflected light intensity when the artery is detected, the control panel 1011 controls the vibration motor 1012 to start up, so as to prompt the vibration of the operator, and the display screen 103 emits red light by the led, and displays the red light as the artery; on the contrary, when the vein is detected, the vibration motor 1012 is not started, and the light emitting diode emits blue light.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a multi-functional finger arteriovenous puncture probe, includes controller (1), adapter sleeve (2) and detection dactylotheca (3), its characterized in that: the controller (1), the connecting sleeve (2) and the detection finger sleeve (3) are sequentially adhered; a connecting lead (4) is welded between the controller (1) and the detection finger sleeve (3), and the connecting sleeve (2) is in nested fit with the connecting lead (4);
an adjusting groove (301) is formed in one end face of the detection finger sleeve (3), a photoelectric probe (302) is hinged to the inner surface of the adjusting groove (301), a photoresistor (3021) and a plurality of light source generators (3022) are welded to one surface of the photoelectric probe (302), and the photoresistor (3021) and the light source generators (3022) are both electrically connected with the controller (1);
one side face of the detection fingerstall (3) is bonded with a connecting guide block (303), one side face of the connecting guide block (303) is welded with a telescopic sleeve (3031), a capillary tube (3032) is installed inside the telescopic sleeve (3031), and the capillary tube (3032) is in sliding fit with the telescopic sleeve (3031); the solenoid (3033) is welded on the inner surface of the telescopic sleeve (3031), and the solenoid (3033) is in contact fit with the capillary conduit (3032).
2. A multifunctional finger arteriovenous puncture probe as claimed in claim 1, wherein the puncture needle (3034) is welded on the inner surface of the telescopic sleeve (3031), the capillary duct (3032) is nested with the puncture needle (3034), and the two are mutually matched in a sliding way.
3. The multifunctional finger arteriovenous puncture probe of claim 1, wherein a control cavity (101) is formed in the controller (1), a control panel (1011) is bolted to the inner surface of the control cavity (101), and a vibration motor (1012) is welded to the upper surface of the control panel (1011), and the control cavity and the control panel are electrically connected.
4. A multifunctional finger venipuncture probe according to claim 1, wherein a battery (102) is installed inside said controller (1), and said battery (102) is electrically connected to a control panel (1011).
5. The multifunctional finger arteriovenous puncture probe of claim 1, wherein a display screen (103) is mounted on the upper surface of the controller (1), and the display screen (103) is electrically connected with a control panel (1011); the lower surface of the controller (1) is adhered with two fixing belts (104), and the fixing belts (104) are of a magic tape structure.
6. The multifunctional finger arteriovenous puncture probe of claim 1, wherein the connecting lead (4) is of a spiral structure, the connecting sleeve (2) is of a flexible tubular structure, and the controller (1) is in folding fit with the detection finger sleeve (3) through the connecting sleeve (2).
7. A multifunctional finger venipuncture probe as claimed in claim 1, wherein said photoelectric probe (302) is folded and fitted with the adjustment groove (301), and said photo resistor (3021) and light source generator (3022) are electrically connected to the control panel (1011).
8. The multifunctional finger arteriovenous puncture probe of claim 1, wherein a finger groove (304) is formed on one surface of the detection finger sleeve (3), and the solenoid (3033) is electrically connected with a control panel (1011).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110264383.3A CN113040770A (en) | 2021-03-11 | 2021-03-11 | Multifunctional finger arteriovenous puncture probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110264383.3A CN113040770A (en) | 2021-03-11 | 2021-03-11 | Multifunctional finger arteriovenous puncture probe |
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| CN113040770A true CN113040770A (en) | 2021-06-29 |
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| CN202110264383.3A Pending CN113040770A (en) | 2021-03-11 | 2021-03-11 | Multifunctional finger arteriovenous puncture probe |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697871A (en) * | 2009-11-16 | 2010-04-28 | 华中科技大学 | Laser imaging method and device for automatically cutting artery blood vessel and vein blood vessel |
| CN202365784U (en) * | 2011-12-02 | 2012-08-08 | 杨柳 | Finger tip fixing collector |
| CN203802443U (en) * | 2013-11-22 | 2014-09-03 | 浙江铭众生物医学创业投资有限公司 | Portable blood-vessel imaging device based on near-infrared absorption and projection |
| CN205181929U (en) * | 2015-12-03 | 2016-04-27 | 陈丽娟 | Assistance -localization real -time's injection positioner |
| CN106618589A (en) * | 2016-11-16 | 2017-05-10 | 南昌洋深电子科技有限公司 | Vascular network-based photoacoustic imaging identity recognition method |
| CN206818714U (en) * | 2017-03-07 | 2017-12-29 | 栾赤兵 | The automatic blood count fat device of clinical laboratory |
| CN110507305A (en) * | 2019-08-27 | 2019-11-29 | 北京大学 | Contrast the measuring blood flow rate method of waveform conduction time difference based on laser speckle |
| CN111195376A (en) * | 2019-12-19 | 2020-05-26 | 韩宜娟 | Multifunctional integrated finger ring for venipuncture in field operations environment |
| CN111544013A (en) * | 2020-05-26 | 2020-08-18 | 青岛市妇女儿童医院（青岛市妇幼保健院、青岛市残疾儿童医疗康复中心、青岛市新生儿疾病筛查中心） | Artery blood sampling assistor |
-
2021
- 2021-03-11 CN CN202110264383.3A patent/CN113040770A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697871A (en) * | 2009-11-16 | 2010-04-28 | 华中科技大学 | Laser imaging method and device for automatically cutting artery blood vessel and vein blood vessel |
| CN202365784U (en) * | 2011-12-02 | 2012-08-08 | 杨柳 | Finger tip fixing collector |
| CN203802443U (en) * | 2013-11-22 | 2014-09-03 | 浙江铭众生物医学创业投资有限公司 | Portable blood-vessel imaging device based on near-infrared absorption and projection |
| CN205181929U (en) * | 2015-12-03 | 2016-04-27 | 陈丽娟 | Assistance -localization real -time's injection positioner |
| CN106618589A (en) * | 2016-11-16 | 2017-05-10 | 南昌洋深电子科技有限公司 | Vascular network-based photoacoustic imaging identity recognition method |
| CN206818714U (en) * | 2017-03-07 | 2017-12-29 | 栾赤兵 | The automatic blood count fat device of clinical laboratory |
| CN110507305A (en) * | 2019-08-27 | 2019-11-29 | 北京大学 | Contrast the measuring blood flow rate method of waveform conduction time difference based on laser speckle |
| CN111195376A (en) * | 2019-12-19 | 2020-05-26 | 韩宜娟 | Multifunctional integrated finger ring for venipuncture in field operations environment |
| CN111544013A (en) * | 2020-05-26 | 2020-08-18 | 青岛市妇女儿童医院（青岛市妇幼保健院、青岛市残疾儿童医疗康复中心、青岛市新生儿疾病筛查中心） | Artery blood sampling assistor |
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Application publication date: 20210629 |
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