CN213345657U

CN213345657U - Blood sampling device and control equipment thereof

Info

Publication number: CN213345657U
Application number: CN201721033753.8U
Authority: CN
Inventors: 李泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-17
Filing date: 2017-08-17
Publication date: 2021-06-04
Anticipated expiration: 2027-08-17

Abstract

The utility model is suitable for the field of medical apparatus and instruments, and provides a blood sampling device and a control device thereof, wherein the blood sampling device comprises a micro-needle component, a micro-needle component and a control device, wherein the micro-needle component comprises a first micro-fluidic channel capable of releasing anesthetic and a second micro-fluidic channel capable of collecting blood; the first motion assembly drives the microneedle assembly to inject anesthetic into the epidermal layer through the first microfluidic channel; a second motion component driving the microneedle component to collect blood from the skin through the second microfluidic channel; and a blood storage device in communication with the second microfluidic channel for storing the collected blood. The blood sampling device is formed by orderly arranging a plurality of micro-needles with tiny diameters into a micro-needle array, and a wound formed by pricking the skin with a needle is tiny; and the puncturing depth of the micro-needle can be accurately controlled in the blood sampling process, the anesthetic is released when the micro-needle is punctured into the epidermis layer of the skin, the micro-needle is punctured into the dermis layer for blood sampling after the anesthesia is finished, and the patient does not feel pain in the whole process, so that painless blood sampling can be achieved.

Description

Blood sampling device and control equipment thereof

Technical Field

The utility model belongs to the field of medical equipment, especially, relate to a blood sampling device and controlgear thereof.

Background

The collection of blood to provide a test sample is one of the routine testing means in clinical testing. In the prior art, the commonly used blood sampling method is to puncture a vein and sample blood, or prick the tip of a finger with a needle, and then squeeze out the blood and collect the blood, and the method is mainly used for periodically detecting the blood sugar level of a diabetic patient.

However, during the research and practice of the prior art, the applicant of the present application found that the following disadvantages exist in the prior art: venipuncture blood collection is usually painful and generally requires professional medical personnel to perform so as to reduce injury; and the blood volume of taking a blood sample of the mode of acupuncture finger tip is less and also relatively painful, moreover to children, because children have fear to the acupuncture, and do not want to take a blood sample, this can increase the degree of difficulty of blood sampling work undoubtedly, so the demand of modern medical treatment can not be satisfied to above-mentioned blood sampling mode.

Disclosure of Invention

The embodiment of the utility model provides a blood sampling device and controlgear thereof aims at solving the problem that the blood sampling modes such as venipuncture or acupuncture finger tip still make the person of being sampled blood produce painful sense among the prior art.

The embodiment of the utility model provides a realize like this, a blood sampling device, this blood sampling device includes: a microneedle assembly comprising a first microfluidic channel for releasing an anesthetic agent, and a second microfluidic channel for collecting blood;

the first motion assembly drives the microneedle assembly to inject anesthetic into the epidermal layer through the first microfluidic channel;

the second motion assembly drives the microneedle assembly to collect blood from the skin through the second microfluidic channel;

and a blood storage device in communication with the second microfluidic channel for storing the collected blood.

Further, the first microfluidic channel comprises:

a hollow first microneedle array;

an anesthetic storage device;

injecting an anesthetic into the channel of the first microneedle array.

Still further, the anesthetic storage device includes:

an anesthetic storage cavity;

an anesthetic release positioned on the storage chamber;

a sealing structure enclosing the anesthetic within the storage cavity.

Further, the second microfluidic channel comprises:

a hollow second microneedle array;

tubing that can transport the collected blood to the blood storage device.

Further, the blood storage device includes:

a blood storage chamber;

the blood injection channel is arranged on the blood storage cavity and is provided with a first one-way conduction structure;

the blood discharge channel is arranged on the cavity and is provided with a second one-way conduction structure;

and the air-permeable and water-impermeable part is arranged on the cavity.

Further, the first motion assembly comprises an elastic suspension bracket which is arranged on the shell of the blood sampling device and enables the micro-needle assembly to be suspended.

Still further, the resilient suspension mount comprises:

a frame body composed of elastic arms which can be pressed and deformed;

and limiting the motion of the microneedle assembly, so that the first microneedle array enters the limiting structure of the epidermal layer under the driving of the first motion structure.

Preferably, the second motion assembly comprises:

and a pressing component for releasing the limiting structure.

The embodiment of the utility model provides a still provide another kind of blood sampling device, this blood sampling device includes: the micro-pinhole array is arranged on a bottom plate of the shell;

placed in the casing:

a microneedle assembly comprising a first microfluidic channel for releasing an anesthetic agent, and a second microfluidic channel for collecting blood;

the upper part of the shell is provided with a cover for packaging the microneedle assembly, the first motion assembly, the second motion assembly and the blood storage device into the shell;

the cover is provided with:

the pressing holes correspond to the first motion structure and the second motion structure;

Preferably, the cover further has a positioning pin hole/positioning pin.

Preferably, a protective film is attached to the side of the bottom plate of the housing, which is in contact with the skin.

Further, the blood storage device includes:

a blood storage chamber;

the first pipe joint and the second pipe joint are arranged on one side of the blood storage cavity and are communicated with the second micro-control flow channel through a conduit;

the first one-way conduction structure and the second one-way conduction structure are respectively connected with the first pipe joint and the second pipe joint;

a reverse one-way conduction structure is arranged at the opposite side of the blood storage cavity and corresponds to the second one-way conduction structure;

a blood drawing hole is formed in the opposite side of the blood storage cavity and corresponds to the first one-way conduction structure, and a breathable and watertight part is arranged on the blood drawing hole;

the air-permeable and water-impermeable part can be connected with a vacuum pump of external equipment;

a blood discharge hole communicated with the reverse one-way conduction structure is formed in the opposite side of the blood storage cavity and in the position corresponding to the reverse one-way conduction structure;

the open end of the blood storage cavity is sealed by a flexible film;

and a rigid thin plate is attached to the outer side of the flexible thin film.

Preferably, the cover is provided with a sliding groove connected with external equipment.

The embodiment of the utility model provides a still provide a blood sampling controlgear, this equipment includes: a control panel;

the power supply is connected with the control panel;

the first motion structure is connected with the control board and can drive the first motion assembly to move;

the second motion structure is connected with the control board and can drive the second motion assembly to move;

the vacuum pump is connected with the control panel;

a mounting position for mounting a disposable blood sampling device.

Preferably, the first motion assembly and the second motion assembly are respectively composed of a linear motor and an attachment mechanism which can do linear pressing motion.

Preferably, the device further comprises a display screen connected to the control panel.

Preferably, the device further comprises a sound playing device connected with the control panel.

Preferably, the apparatus further comprises an activation switch connected to the control panel.

Preferably, the mounting position is provided with a positioning pin/positioning hole corresponding to the positioning hole/positioning pin on the blood sampling device.

Preferably, the device further comprises a blood sampling device release switch, and the positioning pin/positioning hole is separated from the positioning hole/positioning pin of the blood sampling device when the release switch is pressed.

Preferably, the device further comprises a fixing structure for fixing the device to the arm.

Preferably, the device is a watch-type structure.

Preferably, the apparatus further comprises an attention-diversion device connected to the control panel.

The utility model provides a blood sampling device, it is arranged into the micropin array by the little micropin of a plurality of diameters in order, when taking a blood sample, when the micropin invades by blood sampling person's skin tissue, because the little needle of accurate control pricks the degree of depth at the epidermis, contactless pain feels nervous, here medicine such as degree of depth quick release anesthetic, the skin wound is small, after anesthesia is accomplished, the capillary vessel that the little needle of secondary control pricked the dermis carries out the bloodletting, the patient can not feel pain, and reach painless blood sampling.

Drawings

Fig. 1 is a schematic structural view of a blood sampling device provided in an embodiment of the present invention;

FIG. 2 is a schematic structural view of an anesthetic storage device of a blood collection device according to an embodiment of the present invention;

fig. 3 is a schematic view of a microneedle array arrangement of a blood sampling device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a base plate of a blood sampling device according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a C-C plane of a lancing device according to an embodiment of the present invention;

fig. 6 is a schematic view of a deflector structure of a blood sampling device according to an embodiment of the present invention;

FIG. 7 is an assembly view of a closure cap and a blood storage device of a blood collection device according to an embodiment of the present invention;

fig. 8 is a schematic view of a sealing cap of a blood sampling device according to an embodiment of the present invention;

fig. 9 is an assembly view of the internal structure of a blood collection device according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a bottom plate of a blood sampling device according to an embodiment of the present invention;

fig. 11 is a schematic view of another blood collection device according to an embodiment of the present invention;

fig. 12 is a schematic structural module diagram of a blood collection control device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the utility model provides a blood sampling device, which comprises a micro-needle assembly, wherein the micro-needle assembly comprises a first micro-fluidic channel capable of releasing anesthetic and a second micro-fluidic channel capable of collecting blood; the first motion assembly drives the microneedle assembly to inject anesthetic into the epidermal layer through the first microfluidic channel; a second motion component driving the microneedle component to collect blood from the skin through the second microfluidic channel; and a blood storage device in communication with the second microfluidic channel for storing the collected blood. The diameter of the micro needle in the blood sampling device is small and can reach nanometer level, so when the micro needle invades the skin tissue of a blood-sampled person, the skin wound formed by the micro needle is very small, the blood-sampled person basically does not feel pain, and the blood sampling device is also provided with an anesthetic storage/release device which can control the depth to inject the anesthetic into the skin tissue of the blood-sampled person at the epidermal layer of the pain-free nerve in the blood sampling process and then prick into the dermal layer for blood sampling, thereby further achieving pain-free blood sampling.

The following detailed description is provided for the specific embodiments of the present invention.

With reference to fig. 1 to 12, in an embodiment of the present invention, the blood sampling device includes: a microneedle assembly 1, wherein the microneedle assembly 1 comprises a first microfluidic channel 11 capable of releasing anesthetic, and a second microfluidic channel 12 capable of collecting blood; the first motion assembly 2 drives the microneedle assembly 1 to inject anesthetic into the epidermal layer through the first microfluidic channel 11; the second motion assembly 3 drives the microneedle assembly 1 to collect blood from the skin through the second microfluidic channel 12; a blood storage means communicating with the second microfluidic channel 12 for storing the collected blood.

As an embodiment of the present invention, the first microfluidic channel 11 has a stepped channel with a diameter that is larger at the top and smaller at the bottom, and the end channel with a smaller diameter is close to the needle tip of the microneedle. The depth of the small diameter portion of the channel can be set according to the depth of the dermis of the skin tissue of the subject, for example, the thickness of the dermis of the human body is about 1.0mm, so that the depth of the small diameter portion of the microneedle channel can be set to about 1.0mm, so that the microneedle channel can release the anesthetic to the epidermis of the human body to a depth within about 200um, but not to the dermis containing capillaries of 200um-1000um, so as not to puncture the capillaries or veins in the skin tissue. The first microfluidic channel 11 with the stepped channel can control the flow rate of the anesthetic through the diameter of the stepped channel, that is, the flow rate of the anesthetic passing through the end with the larger diameter of the stepped channel is larger, and then the flow rate of the anesthetic flowing into the end with the smaller diameter of the stepped channel is relatively smaller, at this time, the flow rate of the anesthetic can be reduced from large to small, and the anesthetic can be slowly injected into the skin tissue of the blood-sampled person, so that the local nerve of the blood-sampled person can temporarily lose sensation, especially pain sensation, and painless blood sampling can be achieved. In addition, since the diameter of the microneedle is very small and can be manufactured in a nano-scale, when the microneedle invades into the skin tissue of the blood-sampled subject, the wound formed on the skin tissue of the blood-sampled subject is very small, and the invasion depth is not very deep in general, so that the blood-sampled subject hardly feels pain.

As a preferred embodiment of the present invention, the microneedle on the microneedle assembly 1 can be made of degradable material with good toughness or biocompatibility, so as to improve the toughness of the microneedle with small aperture, prevent the microneedle from being broken due to poor toughness of the microneedle during the blood sampling process, and remain in the body of the blood-sampled person, thereby damaging the body of the blood-sampled person. Or even if residual, can avoid the body of the blood-sampled person from causing damage due to the biocompatibility and the rapid degradation.

In an embodiment of the present invention, the first microfluidic channel 11 comprises: a hollow first microneedle array 111, an anesthetic storage device, and a channel for injecting an anesthetic into the first microneedle array. The anesthetic storage device includes: an anesthetic storage cavity 1121; an anesthetic release device positioned on the anesthetic storage cavity 1121; and a sealing structure 1123 enclosing anesthetic within the anesthetic storage cavity 1121.

As an embodiment of the present invention, the hollow first microneedle array 111 may be a microneedle array fixedly disposed on a substrate 114, for example, the microneedle array may be a 10 × 10 square array, that is, an injection microneedle array having 100 injection needles is formed. Every two micro-needles are orderly arranged according to a preset distance and are used for injecting liquid. A back surface of the base plate 114 opposite to the first microneedle array 111 is provided with a jointed fluid guide plate 115, a joint surface of the fluid guide plate 115 and the base plate 114 is provided with an anesthetic guide groove 1151 and a blood guide groove 1152, and an opposite side surface of the joint surface of the fluid guide plate 115 and the base plate 114 is provided with a sharp puncture needle 1125.

The piercing needle 1125 may be formed by injection molding, and the molding process is simple. However, the liquid guide plate 115 and the substrate 114 may be bonded by various welding methods such as ultrasonic welding, thermal welding, plasma welding, and bonding. The substrate 114 may form an internal stepped channel for a MEMS process.

In an embodiment of the present invention, the anesthetic storage cavity 1121 may be composed of two mutually-connected liquid storage cavities having the same structure, wherein the volume of each liquid storage cavity is about 5-150uL, and the two liquid storage cavities are all used for storing anesthetic. The volume of the two cavities which are communicated with each other is about 10-300uL, namely about 10-300uL of anesthetic can be stored at one time. The anesthetic storage cavity 1121 can store the anesthetic dosage which can completely meet the dosage requirement of anesthesia before blood drawing, i.e. a precondition guarantee is provided for painless blood drawing. In addition, the two cavities are in a relatively balanced state when the two cavities are pressed by force, so that the puncture needle 1125 can puncture the soft membrane 1124 at the same time, and the time and the depth of the micro needle invading the skin tissue of the blood-sampled person can be ensured to be in a basically synchronous state.

In an embodiment of the present invention, the anesthetic release device includes a flexible membrane 1124 and a puncture needle 1125 disposed at the bottom of the anesthetic storage cavity 1121. When blood is collected, the soft membrane 1124 is punctured by the puncturing needle 1125, and the anesthetic stored in the anesthetic storage cavity 1121 may flow into the anesthetic guiding groove 1151 through the hollow channel of the puncturing needle 1125, flow into the channel of the first microneedle array 111 corresponding thereto through the anesthetic guiding groove 1151, and then be injected into the skin tissue of the subject through the channel of the first microneedle array 111.

As the embodiment of the present invention, the blood sampling device can be manufactured by injecting anesthetic into the anesthetic storage cavity 1121 in advance, and then sealing the anesthetic by the sealing structure 1123 adapted to the anesthetic storage cavity, so as to prevent the anesthetic from being contaminated or overflowing by dust and other contaminants during transportation or storage.

As a preferred embodiment of the present invention, an opening 1126 may be opened in the center of the sealing structure 1123, and after the anesthetic storage cavity 1121 is filled with anesthetic and sealed, the opening 1126 may be kept in an open state, so that the air pressure inside the anesthetic storage cavity 1121 is kept relatively balanced with the air pressure outside, so as to prevent the soft membrane 1124 from protruding downwards due to the pressure difference between the inside and the outside of the anesthetic storage cavity 1121 and being punctured by the puncturing needle 1125, thereby releasing the anesthetic in the anesthetic storage cavity 1121 in advance and causing waste.

As another preferred embodiment of the present invention, the sealing structure 1123 may be configured as a boss structure with a middle portion extending and protruding, the opening 1126 is located on the boss structure, and the opening 1126 may be configured as a funnel shape to facilitate the injection of the anesthetic and observe whether there is an overflow phenomenon. In addition, the edge of the boss structure is an annular groove 1127, so that in the production process, if the anesthetic overflows due to overfilling, the anesthetic can firstly flow into the annular groove 1127, and the overflowing anesthetic can be blown off by a spray gun, so that the overflowing anesthetic can be prevented from directly flowing into the blood sampling device, and the overall sanitary and clean state of the blood sampling device is maintained.

As another embodiment of the present invention, a safety distance is provided between the soft membrane 1124 and the lancet 1125, when the anesthetic is injected into the anesthetic storage cavity 1121, the soft membrane 1124 protrudes downwards due to the pressure, and the safety distance can prevent the lancet 1125 from directly piercing the soft membrane 1124 to cause a leakage of the anesthetic, so as to keep the blood sampling device clean and safe.

In an embodiment of the present invention, the blood sampling device may be provided with a sealing cover/sealing plug/sealing film (not shown) or the like adapted to the opening 1126 to seal the opening 1126, so as to keep the anesthetic from overflowing during storage, transportation and use and keep the anesthetic clean and safe.

In an embodiment of the present invention, when the anesthetic in the anesthetic storage cavity 1121 is required to be released for anesthesia, the anesthetic storage cavity 1121 is moved downward by manual operation or mechanical control (e.g., motor driving), and the piercing needle 1125 is made to pierce the soft membrane 1124, so that the anesthetic in the anesthetic storage cavity 1121 can flow to the hollow first microneedle array 111 through the channel of the anesthetic releasing device, and is injected into the epidermis layer of the skin tissue of the human body through the channel of the first microneedle array 111 to achieve the anesthetic effect.

In an embodiment of the present invention, the second microfluidic channel 12 comprises: and a hollow second microneedle array 121 for delivering the collected blood to a channel (not shown) of the blood storage device. The second microneedle array 121 can be fixedly disposed on the substrate 114, and the microneedles in each row of the second microneedle array 121 are disposed between each two rows of the first microneedle arrays 111. Further, each microneedle of the second microneedle array 121 is located at the center of the square array surrounded by every four microneedles of the first microneedle array 111, i.e., a gobang-shaped structure is formed. The microneedles of the second microneedle array 121 may form a 9 × 9 square microneedle array, i.e., a microneedle array with 81 microneedles. When a blood sampling operation is performed, the microneedle assembly 1 moves downward as a whole, and drives the hollow first microneedle array 111 and the hollow second microneedle array 121 to move downward at the same time. During the downward movement, the anesthetic stored in the anesthetic storage cavity 1121 may flow into the first microneedle array channel through the hollow channel of the anesthetic releasing apparatus, and may be injected into the skin tissue of the human body through the first microfluidic channel 11 of the first microneedle array 111 corresponding to the first microneedle array channel.

However, the second microfluidic channel 12 of the second microneedle array 121 may then penetrate into the epidermis layer of the skin tissue of the human body, and with the increase of the external force, may continue to penetrate into the dermis layer of the skin tissue of the human body, puncture the capillary or venous blood vessels therein, make blood flow, and extract blood.

The arrangement of the microneedles in the first microneedle array 111 and the second microneedle array 121 may be other arrangements, for example, a ring-shaped array arranged at intervals, and the arrangement may be specifically set according to actual needs, and is not limited herein.

In the embodiment of the present invention, the second microneedle array 121 can extract approximately 7-8uL at a time, that is, the blood collecting device can collect blood by about 600uL at a time, however, the blood collecting amount can satisfy various common blood biochemical experiments.

In an embodiment of the present invention, the blood storage device includes: a blood storage chamber 41; a blood injection channel disposed on the blood storage chamber 41, wherein the blood injection channel is provided with a first one-way conduction structure (not shown); a blood discharge channel disposed on the blood storage chamber 41, wherein the blood discharge channel is provided with a second one-way conduction structure (not shown); and a gas-permeable and water-impermeable portion 44 provided in the blood storage chamber 41.

The first one-way conduction structure and the second one-way conduction structure can be one-way valve structures, so that blood can only be injected along the blood injection channel and flows out through the blood discharge channel, but can not reversely flow back to the human body to cause the injury of the human body, and the smooth blood extraction is ensured. In addition, the air-permeable and water-impermeable portion 44 disposed on the blood storage chamber 41 may be an air-permeable and water-impermeable film; during blood drawing, the air residing in the blood storage chamber 41 can be pumped out through the membrane to an externally connected device, such as a vacuum pump, to reduce the air content inside the blood storage chamber 41, i.e., to reduce the air pressure, so that the air pressure in the blood storage chamber 41 forms a pressure difference with the blood pressure of the human body, and the blood flowing out of the human body can be sucked into the blood storage chamber 41. However, the membrane is impermeable to water, so as to prevent external moisture from entering the blood storage cavity 41 to dilute/contaminate the blood sample during blood drawing/storing, thereby ensuring the reliability of the blood sample and providing a real and reliable blood detection result.

In the embodiment of the present invention, the first motion assembly 2 includes an elastic suspension bracket 21 disposed on the housing 5 of the blood sampling device for suspending the microneedle assembly 1. The elastic suspension support 21 comprises: a frame body 211 composed of a resiliently deformable arm; and a limiting structure 212 for limiting the motion of the microneedle assembly 1, so that the first microneedle array 111 enters the epidermis layer under the driving of the first motion structure (not shown).

In the embodiment of the present invention, the elastic suspension bracket 21 can respectively clamp four end corners of the microneedle assembly 1 through the clamping structure disposed at the end portion thereof, so as to fixedly suspend the microneedle assembly 1. The clamping structure may be an inward-bent structure extending from two open ends of the frame body 211, or a snap structure formed by the open ends of two elastic arms of the frame body 211 and the microneedle assembly 1.

In a preferred embodiment of the present invention, the frame body 211 may be an obtuse angle structure formed by two elastic arms, and when the obtuse vertex of the frame body 211 receives a first external force, the frame body can elastically deform, and the obtuse angle becomes large, at this time, the microneedle assembly 1 can be driven to move downward. When the microneedle assembly 1 moves downwards, the first microfluidic channel 11 on the first microneedle array 111 is driven to enter the epidermis layer of the human body, and at this time, the microneedle stops further penetration due to the resistance of the limiting structure 212. In this case, the retention time of the first external force may be set so that the anesthetic may be injected into the epidermis layer of the human body through the anesthetic release device and the first microfluidic channel 11 of the first microneedle array 111, and the anesthetic may exert its pharmacological effect during the retention time of the first external force. Then, a second pressure may be continuously applied to the frame body 211, so that the stopper structure 212 is also elastically deformed. At this time, the second microfluidic channel 12 of the second microneedle array 121 in the microneedle assembly 1 can continue to penetrate into the dermis of the skin tissue of the human body, and pierce the veins or capillaries of the human body, so that the blood can flow out and be drawn. Since the anesthetic is injected before blood collection and the diameter of the microneedle is small, a blood-collected person basically does not feel pain, and painless blood collection can be realized.

In practical applications, the retention time and the retention magnitude of the first pressure/the second pressure may be flexibly set according to the age of the subject, the site of blood collection, the sensitivity of the blood collection site to pain, and other factors. For example, when the part needing blood sampling is not sensitive to pain, the first pressure and the second pressure can be set to be slightly larger, and the retention time is shorter; the second pressure is slightly greater. For example, when the skin tissue is delicate and the age of the blood collector is small, the magnitudes of the first pressure and the second pressure can be set to small values as appropriate, and the retention time can be made slightly shorter.

In an embodiment of the present invention, the first microneedle array 111 and the second microneedle array 121 may be composed of retractable microneedles, and the first microneedle array 111 and the second microneedle array 121 may not invade into the skin tissue simultaneously under the external force. That is, when the elastic suspension bracket 21 is subjected to the first pressure, the microneedle assembly 1 moves downward to drive the first microfluidic channel 11 on the first microneedle array 111 to move downward and invade into the skin tissue of the human body, and the second microfluidic channel 12 on the second microneedle array 121 contracts and does not invade into the skin. When the elastic hanging bracket 21 is subjected to the second pressure, the microneedle assembly 1 continues to move downwards, and at this time, the first microfluidic channel 11 on the first microneedle array 111 is retracted, and the second microfluidic channel 12 on the second microneedle array 121 extends out and invades into the dermis layer of the skin tissue. Of course, the first micro-fluidic channel 11 on the first micro-needle array 111 may also be extended further when receiving the second pressure according to the difference of the blood sampling site, and the anesthetic may be further released to the blood sampling site, so as to achieve better painless blood sampling.

In an embodiment of the present invention, the second movement assembly 3 of the blood collection device comprises a pressing assembly for releasing the limiting structure 212. The pressing component may be a pressing structure composed of a protrusion 2121 on the limiting structure 212 and a groove/hole 311 matched with the protrusion 2121 on the bottom plate 51 of the blood sampling device. When it is desired to assemble the lancing device, the retention structure 212 can be secured to the lancing device by engaging the protrusion 2121 with the recess/hole 311 of the base plate 51. When blood collection is finished or the blood collection device needs to be disassembled, the protrusion 2121 is separated from the groove/hole 311 by pressing the protrusion 2121, so as to release the limiting structure 212, and the microneedle assembly 1 can leave the skin tissue.

The embodiment of the utility model also provides another blood sampling device, which comprises a shell 5, wherein a bottom plate 51 of the shell 5 is provided with a micro-pinhole array 511; inside this casing 5 are placed: a microneedle assembly 1, wherein the microneedle assembly 1 comprises a first microfluidic channel 11 capable of releasing anesthetic, and a second microfluidic channel 12 capable of collecting blood; the first motion component 2 drives the microneedle component 1 to inject anesthetic into the epidermal layer through the first microfluidic channel 11; the second motion component 3 drives the micro-needle component 1 to collect blood from the skin through the second microfluidic channel 12; the upper part of the shell 5 is provided with a cover 7 for enclosing the microneedle component 1, the first moving component 2, the second moving component 3 and the blood storage device into the shell 5; the cover 7 has thereon: the pressing holes 71 corresponding to the first moving structure 6 and the second moving structure 8; a blood storage means communicating with the second microfluidic channel 12 for storing the collected blood.

The embodiment of the present invention provides a positioning hole/positioning pin 72 on the sealing cover 7, so that the sealing cover can be fixed on the housing 5 through the positioning hole/positioning pin 72, to prevent the sealing cover 7 from slipping off and falling out from the housing 5 during transportation, storage or sale, and to prevent the parts inside the housing 5 from being contaminated by external dust and other contaminants.

In the embodiment of the present invention, a protective film (not shown in the figure) is further attached to one side of the bottom plate 51 of the housing 5 contacting with the skin, so that it is possible to prevent contaminants such as dust from attaching to the bottom plate 51 of the blood sampling device, or the contaminants enter the blood sampling device through the microneedle array holes 511 on the bottom plate 51, and when blood is sampled, the contaminants such as dust infect the human body from the portion contacting with the human body, so that the use hygiene and safety of the blood sampling device can be further ensured.

In an embodiment of the present invention, the blood storage device includes: a blood storage chamber 41; a first pipe connector 45 and a second pipe connector 46 which are arranged at one side of the blood storage cavity 41 and communicated with the second micro-control flow channel 12 through a conduit (not shown in the figure); a first one-way conduction structure (not shown) and a second one-way conduction structure (not shown) respectively connected to the first pipe joint 45 and the second pipe joint 46; a reverse one-way conduction structure (not shown in the figure) is arranged at the opposite side of the blood storage cavity 41 and corresponds to the second one-way conduction structure; a blood drawing hole 47 is arranged at the opposite side of the blood storage cavity 41 and corresponds to the first one-way conduction structure, and a breathable and watertight part 44 is arranged on the blood drawing hole 47; the air-permeable and water-impermeable portion 44 is connectable to the vacuum pump 16 of the external equipment; a blood discharge hole 48 communicated with the reverse one-way conduction structure is arranged at the opposite side of the blood storage cavity 41 and at the position corresponding to the reverse one-way conduction structure; the open end of the blood storage chamber 41 is sealed with a flexible film; wherein a rigid sheet (not shown) is attached to the outside of the flexible film.

The embodiment of the utility model provides an in, the ventilative impervious portion 44 of installation can allow gas to pass through and not allow moisture to pass through on drawing blood hole 47, and the external equipment vacuum pump 16 of blood sampling device can extract the air in blood storage cavity 41 through this ventilative impervious portion 44, makes it be in a negative pressure/vacuum environment, and human blood is because pressure differential and flow to blood storage cavity 41 to realize quick blood sampling, shorten the time of drawing blood and reduce human painful sense. The air-permeable, water-impermeable portion 44 may block ingress of ambient moisture into the blood storage chamber 41, diluting or contaminating the blood sample taken. The air-permeable and water-impermeable part 44 may be an air-permeable and water-impermeable film.

In an embodiment of the present invention, the open end of the blood storage chamber 41 is sealed with a flexible film, and a rigid thin plate is attached to the outside of the flexible film. The rigid sheet may further prevent the blood sample inside the blood storage chamber 41 from splashing due to external impacts during blood collection. The flexible membrane seal between the rigid sheet and the blood storage chamber 41 separates the blood storage chamber 41 from the rigid sheet and completely seals the open end of the blood storage chamber 41 to prevent contaminants from entering the blood storage chamber 41 through the edge gap of the rigid sheet, thereby further ensuring that the collected blood sample is not contaminated.

The embodiment of the utility model provides an in, be provided with the spout 73 of being connected with external equipment on this blood sampling device's the closing cap 7 for this blood sampling device can carry out the sliding push-and-pull cooperation with external equipment through this spout 73, is similar to the structure of drawer type, has improved blood sampling device's convenience of use.

The embodiment of the utility model provides an in still provide a blood sampling controlgear, this equipment includes: a control panel 9; a power supply 10 connected to the control board 9; the first motion structure 6 is connected with the control board 9 and can drive the first motion assembly 2 to move; a second motion structure 8 connected with the control board 9 and capable of driving the second motion assembly 3 to move; a vacuum pump 16 connected to the control board 9; a mounting position for mounting a disposable blood sampling device. The first motion structure 6 and the second motion structure 8 are respectively composed of a linear motor and an attachment mechanism which can do linear pressing motion.

Wherein, in the embodiment of the utility model provides an in, linear electric motor can directly convert electric energy into linear motion's mechanical energy, and does not need the transmission of other middle shifter mechanisms, and it has positioning accuracy height, simple structure, motion stationary, small in noise, moving part friction advantage such as little.

The embodiment of the utility model provides an in, this equipment still includes the display screen 12 of being connected with this control panel 9, can show current blood sampling process through this display screen 12, for example, can show data such as the dwell time of current anesthetic dosage, injection anesthetic, the volume of blood sampling, the position of blood sampling, the acupuncture degree of depth on display screen 12 to in remind blood sampling staff to adjust or finish work such as blood sampling, improve the efficiency and the precision of blood sampling.

In the embodiment of the utility model, this equipment still includes the sound play device 13 of being connected with this control panel 9, can be used to play the process data of taking a blood sample during the blood sampling, for example, the injection time of broadcast anesthetic, the injection dosage of anesthetic, the degree of depth that the micropin invades skin, sound data such as blood flow, in order to indicate the abnormal situation of blood sampling worker to take a blood sample to in time adjust and end the blood sampling operation, or can instruct non-professional blood sampling worker to carry out exact blood sampling operation step, for example, sugar friend can carry out blood sampling operation and detect blood glucose level according to the blood sampling operation step of this blood sampling device broadcast at home oneself. The universality and the convenience of the use of the blood sampling device can be further improved.

The utility model discloses an in the embodiment, this equipment still includes a starting switch 14 of being connected with this control panel 9, and when needs were taken a blood sample, starting switch 14 was opened and close can be controlled to control panel 9, and the drive blood sampling device is taken a blood sample or is stopped the blood sampling operation.

In the embodiment of the present invention, the mounting position of the device is provided with a positioning pin/positioning hole 72 corresponding to the positioning hole/positioning pin on the blood sampling device, so that the blood sampling device can be fixedly mounted on the mounting position, thereby avoiding pain caused by pulling the skin tissue of the blood sampling person due to the movement of the blood sampling device during blood sampling; or the blood sampling device is not installed in place and normal blood sampling operation cannot be performed.

The utility model discloses an in the embodiment, still include a blood sampling device release switch (not shown in the figure) on this equipment, after the blood sampling or when the in-process of taking a blood sample abnormal conditions appear, the blood sampling staff can press this release switch, makes its locating pin/locating hole break away from with blood sampling device's locating hole/locating pin, can stop the blood sampling operation to the safety of having guaranteed the blood sampling also makes things convenient for the timely adjustment of the anomaly that the blood sampling worker appears to the blood sampling in-process.

In an embodiment of the present invention, the device further comprises a fixing structure (not shown) for fixing the device to the arm. Wherein, the fixing structure can be a bandage, a magic tape, a buckle structure and other structures. When blood is collected, the blood collecting device can be fixed on the arm of a blood-sampled person through the fixing structure, and the blood collecting device can be prevented from shifting and dragging skin tissues of the blood-sampled person in the blood collecting process, so that the pain is increased, and the convenience in use of the blood collecting device can be further improved.

In the embodiment of the utility model, the device can be set to a watch-type structure, and the device has small volume, can be made into a USB flash disk with the length multiplied by the width of 50 multiplied by 18, and the whole device is very small and exquisite, can be worn on hand to take blood and is very convenient; the blood sampling device adopting the watch type structure is used for sampling blood, the micro needle arranged in the device cannot be seen in the whole process, the fear of a blood-sampled person to the needle (especially children) can be reduced, and therefore the difficulty of blood sampling can be increased to a certain extent due to the resistance of the blood-sampled person and the like of the blood-sampled person. In addition, in the blood sampling process, the blood sampling device does not see blood in the blood sampling process, so that blood sampling can be easily completed for some blood-sick blood-sampled persons.

In the embodiment of the present invention, the device further comprises an attention transfer device 15 connected to the control board 9, the attention transfer device 15 can be a video/music player, a picture display, a game machine, a fragrance releasing device, etc., when blood sampling, some videos/music, pictures, games, etc. can be played simultaneously to attract the attention of the blood-sampled person, so that the blood-sampled person (especially a child) can easily complete blood sampling while watching videos, pictures or playing games, without crying and screaming, and the trouble of blood sampling for the blood-sampled person is reduced.

The utility model provides a blood sampling device, it is arranged in order by a plurality of diameter micro (nanometer) micropins and constitutes the micropin array, and when the micropin invaded the skin tissue of the person who is sampled, the skin wound that its formation was very little, and the person who is sampled can not feel pain basically; and an anesthetic storage/release device is also arranged, during blood sampling, the anesthetic can be released into the epidermal layer of the skin tissue of the blood sampled person through the release device, and blood is sampled after anesthesia is completed, so that painless blood sampling can be further achieved. In addition, the blood sampling device is of a disposable and detachable structure, is convenient to install and use, effectively ensures that cross contamination of blood among blood-sampled persons due to sharing of blood sampling needles and the like can not occur, and simultaneously ensures that collected blood samples are not polluted to influence final detection result judgment.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A lancing device, comprising:

2. The blood collection device of claim 1, wherein the first microfluidic channel comprises:

a hollow first microneedle array;

an anesthetic storage device;

injecting an anesthetic into the channel of the first microneedle array.

3. The lancing device of claim 2, wherein the anesthetic storage device comprises:

an anesthetic storage cavity;

an anesthetic release positioned on the storage chamber;

a sealing structure enclosing the anesthetic within the storage cavity.

4. The blood collection device of claim 1, wherein the second microfluidic channel comprises:

a hollow second microneedle array;

tubing that can transport the collected blood to the blood storage device.

5. The lancing device of claim 1, wherein the blood storage device comprises:

a blood storage chamber;

and the air-permeable and water-impermeable part is arranged on the cavity.

6. The lancing device of claim 2, wherein the first motion assembly comprises a resilient suspension mount disposed in a housing of the lancing device suspending the microneedle assembly.

7. The lancing device of claim 6, wherein the resilient suspension mount comprises:

a frame body composed of elastic arms which can be pressed and deformed;

8. The lancing device of claim 7, wherein the second motion assembly comprises:

and a pressing component for releasing the limiting structure.

9. A lancing device, comprising:

the micro-pinhole array is arranged on a bottom plate of the shell;

placed in the casing:

the cover is provided with:

10. The lancing device of claim 9, wherein the cover further comprises a registration pin hole/registration pin.

11. The lancing device of claim 9, wherein a protective membrane is attached to the skin contacting side of the base of the housing.

12. The lancing device of claim 9, wherein the blood storage device comprises:

a blood storage chamber;

the open end of the blood storage cavity is sealed by a flexible film;

and a rigid thin plate is attached to the outer side of the flexible thin film.

13. The lancing device of claim 9, wherein the cover has a slot for connection to an external device.

14. A blood collection control apparatus, characterized in that the apparatus comprises:

a control panel;

the power supply is connected with the control panel;

the vacuum pump is connected with the control panel;

a mounting position for mounting a disposable blood sampling device.

15. The blood collection control device of claim 14, wherein the first movement structure and the second movement structure are respectively composed of a linear motor and an attachment mechanism capable of performing linear pressing movement.

16. The lancing control device of claim 14, further comprising a display screen coupled to the control panel.

17. The blood collection control device of claim 14, further comprising a sound player coupled to the control panel.

18. The blood collection control device of claim 14, further comprising an activation switch coupled to the control panel.

19. The blood collection control apparatus of claim 14, wherein the mounting site is provided with a locating pin/hole corresponding to the locating hole/pin of the blood collection device.

20. The lancing control device of claim 19, further comprising a lancing device release switch on the device, wherein the alignment pin/alignment hole disengages the alignment pin/alignment hole of the lancing device when the release switch is depressed.

21. The lancing control device of claim 14, further comprising a securing structure on the device for securing the device to an arm.

22. The lancing control device of claim 14, wherein the device is a watch-type structure.

23. The lancing control device of claim 14, further comprising an attention transfer device connected to the control panel.