CN113229814B - Peripheral blood sampling device, control method thereof, control device, and storage medium - Google Patents
Peripheral blood sampling device, control method thereof, control device, and storage medium Download PDFInfo
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- CN113229814B CN113229814B CN202110544791.4A CN202110544791A CN113229814B CN 113229814 B CN113229814 B CN 113229814B CN 202110544791 A CN202110544791 A CN 202110544791A CN 113229814 B CN113229814 B CN 113229814B
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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
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
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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
- A61B5/150946—Means for varying, regulating, indicating or limiting the speed or time of blood collection
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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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
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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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15146—Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means.
- A61B5/15148—Constructional features of stocking means, e.g. strip, roll, disc, cartridge, belt or tube
- A61B5/15149—Arrangement of piercing elements relative to each other
- A61B5/15153—Multiple piercing elements stocked in a single compartment
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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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15146—Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means.
- A61B5/15148—Constructional features of stocking means, e.g. strip, roll, disc, cartridge, belt or tube
- A61B5/15157—Geometry of stocking means or arrangement of piercing elements therein
- A61B5/15174—Piercing elements stocked in the form of a stack or pile
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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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
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Abstract
The invention discloses a peripheral blood sampling device and a control method thereof, a control device and a storage medium, wherein the peripheral blood sampling device comprises a needle box, a lancing mechanism, a driving mechanism and a distance detection device, the lancing mechanism comprises a lancet, the driving mechanism is used for driving the lancet to translate, and the control method of the peripheral blood sampling device comprises the following steps: acquiring a distance parameter L from the lancet to the surface of the human body based on the distance detection device; when the distance parameter L is equal to the first distance preset value M1, the driving mechanism is controlled to drive the lancet to translate forwards. The automatic disassembly and assembly of the lancet can be realized, the operation of manually disassembling and assembling the needle head is omitted, the time for waiting for disassembling and assembling the needle head by a patient is saved, and the working efficiency of blood sugar testing, blood pricking and discharging and blood grouping is improved. Moreover, the operation is unmanned and automatic, the operation risk of manually replacing the lancet is reduced, and the medical hidden dangers of blood sugar test, vein puncture and bleeding and blood grouping processes are avoided.
Description
Technical Field
The invention relates to the technical field of peripheral blood sampling, in particular to a peripheral blood sampling device and a control method, a control device and a storage medium thereof.
Background
Peripheral blood is mainly used for examination items such as whole blood cell analysis, blood type, blood sugar, blood sedimentation, newborn screening and the like. With the development of modern inspection medical technology, rapid micro-methods are established for some items with large blood volume in the past, such as trace elements, infectious markers, antibodies of infectious diseases, bedside detection items and the like. In addition, many new projects are continuously developed, and the clinical application of peripheral blood has wide prospects. Devices for lancing the skin to obtain a peripheral blood sample are typically sharp needles or blades. The peripheral lancet is applied to blood sugar test, vein puncturing and cupping, blood grouping, whole blood cell analysis, newborn screening and the like. Currently, most lancets involved in peripheral blood extraction require manual replacement after use.
Disclosure of Invention
The invention mainly aims to provide a peripheral blood sampling device and a control method, a control device and a storage medium thereof, and aims to solve the technical problems that in the prior art, a lancet needs to be manually operated to replace a needle, the working efficiency is low, and the risk is high.
To achieve the above object, the present invention provides a method of controlling a peripheral blood sampling device having a rear end for being away from a human body and a front end for being close to the human body, the peripheral blood sampling device including a needle cassette, a lancing mechanism including a lancet provided to the needle cassette so as to be translatable back and forth, a drive mechanism for driving the lancet to be translated in the first direction, and a distance detecting device, the method comprising the steps of:
acquiring a distance parameter L from the lancet to the surface of the human body based on the distance detection device;
when the distance parameter L is equal to a first preset distance value M1, the driving mechanism is controlled to drive the lancet to translate forwards, so that the front end of the lancet can penetrate into a human body.
Optionally, the driving mechanism further comprises a driving cylinder, a first electromagnetic valve and an electromagnet coil, the driving cylinder is arranged behind the lancet and is provided with a piston rod which is arranged in a telescopic manner along the first direction so as to be connected with the rear end of the lancet when the piston rod moves forwards, the electromagnet coil is wound on the surface of the piston rod, and the first electromagnetic valve is used for controlling the piston rod to move forwards and backwards;
when the distance parameter L is equal to a first preset distance value M1, the step of controlling the driving mechanism to drive the lancet to translate to the proximal end along the first direction and penetrate into the human body comprises the following steps:
when the distance parameter L1 is equal to a first distance preset value M1, the first electromagnetic valve is controlled to be opened so that the piston rod moves forwards, and the electromagnet coil is controlled to be electrified so that the piston rod magnetizes and adsorbs the lancet.
Optionally, the step of acquiring the distance parameter L from the lancet to the surface of the human body based on the distance detection device further includes:
when the distance parameter L is equal to a second preset distance value M2, the first electromagnetic valve is controlled to be closed, so that the piston rod stops moving forwards.
Optionally, the step of acquiring the distance parameter L from the lancet to the surface of the human body based on the distance detection device further includes:
when the distance parameter L is equal to a third distance preset value M3, controlling the electromagnet coil to lose power so as to demagnetize the piston rod and separate from the lancet.
Optionally, the driving mechanism further comprises a second electromagnetic valve, a third electromagnetic valve and an energy accumulator, the inner cavity of the driving cylinder comprises a first cavity and a second cavity which are sequentially communicated from back to front, one end of the piston rod is arranged in the first cavity, the other end of the piston rod extends to the second cavity and extends out of the second cavity, the gas in the first cavity is used for pushing the piston rod to move forwards, the gas in the second cavity is used for pushing the piston rod to move backwards, the first cavity is provided with an air outlet channel, the second electromagnetic valve is arranged on the air outlet channel and used for controlling the air outlet channel to be closed and opened, the energy accumulator is connected with the second cavity, and the second electromagnetic valve is arranged at the joint between the energy accumulator and the second cavity and used for controlling the on-off of the energy accumulator and the second cavity;
the step of acquiring the distance parameter L from the lancet to the surface of the human body based on the distance detection device further comprises:
and when the distance parameter L is equal to a fourth distance preset value M4, controlling the second electromagnetic valve to be opened so that the gas in the first cavity flows out of the gas outlet channel, and controlling the third electromagnetic valve to be opened so that the gas in the energy accumulator enters the second cavity to push the piston rod to move backwards.
In addition, in order to achieve the above object, the present invention further provides a control device of a peripheral blood sampling device, including a storage, a processor, and a control program of the peripheral blood sampling device stored in the storage and operable on the processor, wherein the control program of the peripheral blood sampling device is configured to implement the steps of the control method of the peripheral blood sampling device as described above.
Further, in order to achieve the above object, the present invention also provides a peripheral blood sampling device having a rear end for being distant from a human body and a front end for being close to the human body, the peripheral blood sampling device comprising:
a needle box, wherein an accommodating cavity is formed inside the needle box, and an outlet is formed at the bottom of the accommodating cavity;
a lancing mechanism including a lancet translatably disposed in the cartridge in a forward and rearward direction;
a drive mechanism including a drive cylinder having a piston rod that extends and retracts in a forward and rearward direction to urge the lancet to extend and protrude from the outlet when the piston rod moves forward;
the distance detection device is arranged on the piston rod and used for detecting the distance between the piston rod and the shielding object; and the number of the first and second groups,
a control device for a peripheral blood sampling device, electrically connected to the distance detection device and the drive mechanism, the control device for a peripheral blood sampling device according to claim 6.
Optionally, the distance detecting device includes an infrared distance measuring sensor, and the infrared distance measuring sensor is disposed on the piston rod and is configured to detect a distance between the piston rod and the shielding object.
Optionally, the peripheral blood sampling device further comprises a recovery box disposed below the needle box, a storage cavity is formed inside the recovery box, the top of the storage cavity is open, and the recovery box is used for recovering the waste lancet.
In order to achieve the above object, the present invention further provides a storage medium having stored thereon a control program for a peripheral blood sampling apparatus, the control program being executed by a processor to realize the control procedure of the peripheral blood sampling apparatus as described above.
The peripheral blood sampling device provided by the invention can realize unmanned and automatic operation of detachment and installation of the lancet, reduces the operation risk of manually replacing the lancet, and avoids medical hidden dangers in the processes of blood sugar test, blood pricking and bleeding and blood grouping. The operation of manual disassembly and assembly of the needle head is omitted, the time for a patient to wait for disassembly and assembly of the needle head is saved, and the working efficiency of blood sugar testing, vein puncturing and bleeding and blood grouping is improved.
Drawings
FIG. 1 is a schematic view of a peripheral blood sampling device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a control device of the peripheral blood sampling device according to the embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a first embodiment of a method for controlling a peripheral blood sampling device according to the present invention;
FIG. 4 is a cross-sectional view of the peripheral blood sampling device of FIG. 1.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
108 | |
| 101 | |
109 | First |
| 102 | Lancet | 110 | Second |
| 103 | |
111 | |
| 104 | |
112 | |
| 105 | Piston |
113 | |
| 106 | |
114 | Stop block |
| 107 | |
1003 | |
| 1001 | Processor with a memory having a plurality of |
1004 | |
| 1002 | |
1005 | Memory device |
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a control device of the peripheral blood sampling device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 2, the control device of the peripheral blood sampling device may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), and the optional user interface 1003 may further include a standard wired interface and a wireless interface, and the wired interface for the user interface 1003 may be a USB interface in the present invention. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory or a Non-volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in FIG. 2 does not constitute a limitation of the control device of the peripheral blood sampling device, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
As shown in fig. 2, a memory 1005, identified as one type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a control program for the peripheral blood sampling device.
In the control device of the peripheral blood sampling device shown in fig. 2, the network interface 1004 is mainly used for connecting with a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting user equipment; the control device of the peripheral blood sampling device calls the control program of the peripheral blood sampling device stored in the memory 1005 by the processor 1001, and executes the control method of the peripheral blood sampling device according to the embodiment of the present invention.
Based on the above hardware configuration, an embodiment of the control method of the peripheral blood sampling device of the present invention is provided.
Referring to fig. 3, fig. 3 is a schematic flow chart of an embodiment of the method for controlling the peripheral blood sampling device 100 according to the present invention, and it is proposed that the embodiment of the method for controlling the peripheral blood sampling device 100 according to the present invention includes the following steps:
step S10: based on the distance detection device, a distance parameter L from the lancet 102 to the surface of the human body is acquired.
It should be understood that the main body of the execution of the present embodiment is a control device of the peripheral blood sampling device 100, wherein the control device of the peripheral blood sampling device may be an electronic device such as a personal computer or a server.
Step S20: when the distance parameter L is equal to a first preset distance value M1, the driving mechanism is controlled to drive the lancet to translate forwards, so that the front end of the lancet can penetrate into a human body.
Further, step S20 further includes:
step S201: when the distance parameter L1 is equal to a first preset distance value M1, the first solenoid valve 109 is controlled to be opened so that the piston rod 105 moves forwards, and the electromagnet coil is controlled to be electrified so that the piston rod 105 magnetizes and adsorbs the lancet 102.
Further, step S10 further includes:
step S101: when the distance parameter L is equal to the second preset distance value M2, the first solenoid valve 109 is controlled to close, so that the piston rod 105 stops moving forward.
Further, step S10 further includes:
step S102: when the distance parameter L is equal to a third distance preset value M3, the electromagnet coil is controlled to be de-energized, so that the piston rod 105 is demagnetized and separated from the lancet 102.
Further, step S10 further includes:
step S103: when the distance parameter L is equal to a fourth distance preset value M4, the second solenoid valve 110 is controlled to open, so that the gas in the first cavity flows out from the gas outlet channel, and the third solenoid valve 108 is controlled to open, so that the gas in the accumulator 112 enters the second cavity, and the piston rod 105 is pushed to move backwards.
Further, referring to fig. 1, an embodiment of the present invention further provides a peripheral blood sampling device 100 having a rear end for being away from a human body and a front end for being close to the human body, the peripheral blood sampling device 100 including: the needle box comprises a needle box body, a lancing mechanism, a driving mechanism, a distance detection device and a control device of a peripheral blood sampling device, wherein an accommodating cavity is formed inside the needle box body, and an outlet is formed at the bottom of the accommodating cavity; the lancing mechanism includes a lancet 102 translatably disposed in the cartridge in a forward and rearward direction; the driving mechanism comprises a driving air cylinder 101, the driving air cylinder 101 is provided with a piston rod 105 which is telescopically moved along the front and back directions, so that when the piston rod 105 moves forwards, the lancet 102 is pushed to extend and extend from the outlet; the control device of the peripheral blood sampling device is electrically connected to the distance detection device and the drive mechanism, and the control device of the peripheral blood sampling device is the control device of the peripheral blood sampling device.
Further, the distance detecting device comprises an infrared distance measuring sensor, and the infrared distance measuring sensor is arranged on the piston rod 105 and used for detecting the distance from the piston rod 105 to the shielding object.
Further, the peripheral blood sampling device further comprises a recovery box 106 arranged below the needle box, a containing cavity is formed inside the recovery box 106, the top of the containing cavity is open, and the recovery box 106 is used for recovering the waste lancet 102.
The sampling device for peripheral blood collection and lancing vein release provided by the invention is divided into five steps of an initial state, a human body identification and lancing preparation stage, a lancing stage, a needle ejection stage and a return to initial position stage according to the general operation steps of lancing. Aiming at the special requirement, the invention designs a sampling device suitable for tip blood sampling and vein puncture blood discharging by combining with an automatically realized implementation process, the device consists of a needle box for storing a needle head, a lancet 102, a driving air cylinder 101, a pneumatic electromagnetic valve and the like, a spring 103 and a guide rail 104 are arranged in the needle box, and the bottom of the needle box is provided with an opening. In the initial state, the infrared distance measuring sensor is turned on to measure the distance of the shielding object, and at the moment, the infrared rays are transmitted to the waste needle recovery box 106 after being emitted by the sensor, so that the distance between the infrared distance measuring sensor and the waste needle recovery box is measured. In the initial state, the electromagnet winding is not electrified, and the needle bar groove has no magnetic force. The rightmost needle head is tightly pressed on the right side of the needle box by the stop block 114 under the thrust action of the compression spring 103 on the needle box, and the rightmost needle head stays right above the hollow opening by virtue of friction force to wait for the next lancing action.
In order to complete the action of pricking and pricking blood, firstly, the corresponding human body surface is moved to the position right below the needle head of the device, at the moment, infrared rays emitted by the infrared distance measuring sensor are reflected back to the sensor through the human body surface, the sensor outputs a distance measuring signal, and the distance measuring value is L. When the distance measuring signal value L sent by the infrared distance measuring sensor received by the central control system reaches a preset threshold value M1, the central control system sends an instruction and then energizes an electromagnet winding of the needle rod to magnetize an electromagnet iron core of the groove of the needle rod, and the needle head is attracted in the groove of the needle rod by magnetic force.
Particularly, the human body distance recognition provided by the invention is judged according to the distance between the surface of the human body and the sensor measured by infrared rays. Only when the distance value L of the surface of the human body measured by the infrared ray is equal to a preset threshold value M1, the central control system can finish the surface identification of the human body and switch on the electromagnetic winding of the needle rod. The preset threshold value M1 is set to a value equal to the stroke length M1 of the piston rod 105 in the driving cylinder 101, i.e., the distance the piston rod 105 moves from the initial position to the limit switch 113.
The task of this stage is to place the body part to be lanced in the correct position, i.e. at a longitudinal distance from the infrared sensor M1. When the measurement value of the infrared ranging sensor is equal to M1, human body recognition is completed.
After the actions are executed, the central control system sends out a command, the first electromagnetic valve 109 and the second electromagnetic valve 110 are opened, high-pressure gas in the air pump 111 is injected into the upper half side of the driving cylinder 101, the piston rod 105 is pushed to move downwards, and the gas in the lower half side of the driving cylinder 101 enters the energy accumulator 112 to be stored under the pushing of the piston rod 105. Meanwhile, the needle rod connected with the tail end of the piston rod 105 absorbs the needle head through magnetic force, under the action of the thrust of the piston rod 105, the needle head passes through a gap (the gap value is slightly larger than the width of the needle rod of the needle head) of the hollow opening at the bottom of the needle box, the downward movement is rapidly completed, and the needle head moves downwards along with the downward movement M1 to penetrate into the surface of a human body for a penetrating depth H. When the piston rod 105 moves downwards and touches the limit switch 113, the piston rod 105 stops moving, the first electromagnetic valve 109 is closed, the high-pressure gas injection to the upper half side of the driving cylinder 101 is stopped, and the second electromagnetic valve 110 is closed, so that the high-pressure gas in the energy accumulator 112 is prevented from leaking. When the piston rod 105 stops moving, the infrared ray measures the human body surface distance M2. The actions of the lancing stage are completed.
After the above-described actions are performed, the infrared ranging sensor measures a human body surface distance of M2. After the lancing is completed, the body surface is suddenly removed, and at this time, the distance measured by the infrared ranging sensor is suddenly increased to M3. When the central control system detects that the measurement distance is suddenly increased from M2, the electromagnet winding is disconnected, the needle rod loses magnetism, and the needle head falls off from the needle rod to the waste needle head recovery box 106 under the action of gravity, so that the needle head ejection action is completed.
After the above operation is performed, that is, after the current applied to the winding of the knife bar electromagnet is cut off, the third solenoid valve 108 is opened to discharge the high-pressure gas in the upper half of the driving cylinder 101, and the second solenoid valve 110 is opened to inject the high-pressure gas in the accumulator 112 into the lower half of the driving cylinder 101. At this time, the piston rod 105 moves upward under the combined action of the tension of the return spring on the upper half of the driving cylinder 101 and the high-pressure vacuum in the energy accumulator 112 on the lower half of the driving cylinder 101, and finally stays at the initial position, the tension of the return spring is zero, and the air pressure in the energy accumulator 112 is equal to one atmospheric pressure. After returning to the initial position, the candidate needles are pushed into the needle bar grooves by the urging force of the needle magazine compression spring. At this point, the return to the initial position and state is completed.
It is specifically stated that, although the candidate needle always moves to the right under the pushing of the spring force, the candidate needle is in a force balance state and a static state in the process of the above actions. This is due to the special structure design of the needle bar, so that the width of the needle bar and the width of the needle head are exactly equal during the downward movement of the needle bar. Thus, when the working pillow leaves the current position and even falls off from the needle rod, the upper end part of the needle rod continuously supports the candidate needle, so that the candidate needle is kept still. Only when the return to the initial position is completed, when the needle bar groove is returned to the initial position again, the candidate needle is pushed into the hollow needle bar groove under the spring force.
Furthermore, an embodiment of the present invention provides a storage medium having stored thereon a control program for a peripheral blood sampling apparatus, the control program for the peripheral blood sampling apparatus realizing the control procedure of the peripheral blood sampling apparatus as described above when executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words first, second, third, etc. are to be interpreted as names.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., a Read Only Memory (ROM)/Random Access Memory (RAM), a magnetic disk, an optical disk), and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. A peripheral blood sampling device having a rear end for distal from a body and a front end for proximal to the body, the peripheral blood sampling device comprising:
a needle box, wherein an accommodating cavity is formed inside the needle box, and an outlet is formed at the bottom of the accommodating cavity;
a lancing mechanism including a lancet translatably disposed in the cartridge in a forward and rearward direction;
a drive mechanism including a drive cylinder having a piston rod that extends and retracts in a forward and rearward direction to push the lancet to extend from the outlet when the piston rod moves forward;
the distance detection device is arranged on the piston rod and used for detecting the distance between the piston rod and the shielding object; and the number of the first and second groups,
a control device of the peripheral blood sampling device, electrically connected to the distance detection device and the drive mechanism;
the driving mechanism further comprises a driving cylinder, a first electromagnetic valve and an electromagnet coil, the driving cylinder is arranged behind the lancet and is provided with a piston rod which is arranged in a telescopic mode along a first direction so as to be connected with the rear end of the lancet when the piston rod moves forwards, the electromagnet coil is wound on the surface of the piston rod, the first electromagnetic valve is used for controlling the piston rod to move forwards and backwards, and the electromagnet wire is used for adsorbing the lancet;
the driving mechanism further comprises a second electromagnetic valve, a third electromagnetic valve and an energy accumulator, an inner cavity of the driving cylinder comprises a first cavity and a second cavity which are sequentially communicated from back to front, one end of the piston rod is arranged in the first cavity, the other end of the piston rod extends to the second cavity and extends out of the second cavity, gas in the first cavity is used for pushing the piston rod to move forwards, gas in the second cavity is used for pushing the piston rod to move backwards, the first cavity is provided with a gas outlet channel, the second electromagnetic valve is arranged in the gas outlet channel and used for controlling the gas outlet channel to be closed and opened, the energy accumulator is connected with the second cavity, and the second electromagnetic valve is arranged at a connecting position between the energy accumulator and the second cavity and used for controlling the energy accumulator and the second cavity to be switched on and off;
the control device of the peripheral blood sampling device is used for realizing the following steps:
acquiring a distance parameter L from the lancet to the surface of the human body based on the distance detection device;
when the distance parameter L1 is equal to a first distance preset value M1, controlling the first electromagnetic valve to be opened so that the piston rod moves forwards, and controlling the electromagnet coil to be electrified so that the piston rod magnetizes and adsorbs the lancet;
when the distance parameter L is equal to a second preset distance value M2, controlling the first electromagnetic valve to be closed so that the piston rod stops moving forwards;
when the distance parameter L is equal to a third distance preset value M3, controlling the electromagnet coil to lose power so as to demagnetize the piston rod and separate from the lancet;
and when the distance parameter L is equal to a fourth distance preset value M4, controlling the second electromagnetic valve to be opened so that the gas in the first cavity flows out of the gas outlet channel, and controlling the third electromagnetic valve to be opened so that the gas in the energy accumulator enters the second cavity to push the piston rod to move backwards.
2. A peripheral blood sampling device according to claim 1, wherein the distance detection means comprises an infrared distance measuring sensor provided on the piston rod for detecting the distance from the piston rod to the shield.
3. A peripheral blood sampling device according to claim 1, further comprising a recovery case disposed below the needle case, wherein a receiving cavity is formed inside the recovery case, and a top of the receiving cavity is open, and the recovery case is configured to recover the waste lancet.
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| CN202110544791.4A CN113229814B (en) | 2021-05-18 | 2021-05-18 | Peripheral blood sampling device, control method thereof, control device, and storage medium |
| PCT/CN2022/083690 WO2022242318A1 (en) | 2021-05-18 | 2022-03-29 | Peripheral blood sampling apparatus and control method and control apparatus therefor, and storage medium |
| LU501956A LU501956B1 (en) | 2021-05-18 | 2022-03-29 | Peripheral blood sampling device, control method and control device thereof, and storage medium |
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| CN116616767B (en) * | 2023-03-08 | 2024-10-01 | 南京润聚泽通贸易有限公司 | Contactless diagnostic analysis operating device |
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| CN104127190A (en) * | 2013-05-03 | 2014-11-05 | 品强科技精密有限公司 | Blood sampling device allowing controllable puncturing depth |
| CN111493893A (en) * | 2020-04-26 | 2020-08-07 | 武汉儿童医院 | Children's peripheral blood collection robot |
| CN111643094A (en) * | 2020-06-30 | 2020-09-11 | 江苏大学附属医院 | Full-automatic self-service tip blood sugar detector |
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| WO2022242318A1 (en) | 2022-11-24 |
| LU501956B1 (en) | 2022-11-25 |
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