Arterial blood gas analysis and collection puncture outfit

Abstract

The invention discloses an arterial blood gas analysis and collection puncture outfit, and relates to the technical field of medical instruments. Comprising a puncture needle cylinder part, and an automatic mixing part is rotationally installed in the puncture needle cylinder part and used for mixing arterial blood; an expansion positioning piece is mounted on the puncture needle cylinder piece; the expansion positioning piece is used for limiting the automatic mixing piece; the expansion positioning piece is used for detecting the arterial blood extraction amount; the expansion positioning piece is adopted to control the rotation of the rotary impeller to quickly complete the uniform mixing work, so that the timeliness of blood anticoagulation can be ensured, the situation that blood is not subjected to uniform mixing work for a long time after puncture sampling is avoided, and manual forgetting or untimely mixing can be avoided; the problems that according to an existing arterial blood gas analysis and collection puncture outfit, arterial blood anticoagulation can not be conveniently and automatically conducted in time after puncture is completed, and the anticoagulation effect is poor are solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to an arterial blood gas analysis and collection puncture device. Background Art

[0002] Blood gas analysis is a common item in arterial blood examination. By measuring the pH, carbon dioxide partial pressure, oxygen partial pressure and other indicators in the arterial blood, it can be judged whether the subject has acid-base imbalance, respiratory failure, hypoxemia and other diseases. The blood gas needle usually uses the needle to insert the artery and use the arterial pressure to fill the puncture. The arterial blood needs to be mixed with heparin in time to avoid coagulation. The current arterial blood gas analysis collection puncture is not convenient for automatic arterial blood anticoagulation after the puncture is completed. The traditional method of manually rubbing the blood gas needle with both hands is easy to forget or not in time, causing coagulation. At the same time, the anticoagulation effect is not good. Excessive rubbing can easily cause blood leakage. At the same time, it is not convenient to automatically close the needle tube after the puncture is completed. It needs to be manually closed with a cap. The blood is exposed to the air for a long time, which is easy to affect the blood gas indicators. At the same time, patients with low blood pressure are prone to insufficient sampling, and it is not convenient to exhaust the air without removing the needle, and the needle is easily contaminated.

[0003] To this end, we propose an arterial blood gas analysis collection puncture device. Summary of the invention

[0004] The purpose of the present invention is to provide an arterial blood gas analysis and collection puncture device to solve the problem raised in the above background technology that the current arterial blood gas analysis and collection puncture device is not convenient for automatically performing arterial blood anticoagulation in time after puncture is completed, and the anticoagulation effect is poor.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an arterial blood gas analysis and collection puncture device, comprising a puncture needle barrel component, an automatic mixing component is rotatably installed inside the puncture needle barrel component, and the automatic mixing component is used to mix arterial blood; an expansion positioning component is installed on the puncture needle barrel component; the expansion positioning component is used to limit the automatic mixing component; the expansion positioning component is used to detect the amount of arterial blood extraction; elastic leak-proof components are installed inside the automatic mixing component and the puncture needle barrel component; a magnetic control component is installed on the puncture needle barrel component; the magnetic control component is used to magnetically adsorb the elastic leak-proof component; a closed protective component is installed on the magnetic control component; the closed protective component is located at the front end of the puncture needle barrel component; the puncture needle barrel component comprises: a syringe and a cannula, a cannula is fixedly installed at the front end of the syringe; the inner side of the cannula is a slope structure; the syringe is provided with a scale; and a needle is plugged into the cannula.

[0006] Preferably, the puncture needle cylinder also includes: a piston cylinder and a rubber piston, the piston cylinder is threadedly connected in the syringe; a through hole is provided in the middle of the piston cylinder; a rubber piston is fixedly sleeved on the front end of the piston cylinder; the rubber piston is inserted into the inside of the syringe; and the outer side of the rubber piston is used to fit the inner side of the syringe.

[0007] Preferably, the automatic mixing element comprises: a mixing rotating rod, a rotating connecting cylinder and a blood seepage groove, the mixing rotating rod is rotatably sleeved inside the piston cylinder; a rotating connecting cylinder is fixedly installed at the front end of the mixing rotating rod, and the rotating connecting cylinder is rotatably sleeved inside the piston cylinder; the rotating connecting cylinder is a hollow structure; two blood seepage grooves are provided on the rotating connecting cylinder; a socket is provided on the rotating connecting cylinder at a position between the two blood seepage grooves.

[0008] Preferably, the automatic mixer also includes: a rotating impeller and a spring, the rotating impeller is fixedly mounted on the rotating connecting cylinder; a through hole is provided in the middle of the rotating impeller, the mixing rotating rod and the rotating connecting cylinder; the inner side of the rotating connecting cylinder is a slope structure; the impeller of the rotating impeller is located inside the syringe; the end of the spring is connected to the rotating impeller; the other end of the spring is connected to the inner side of the piston cylinder; the spring is located inside the piston cylinder; the spring is in a tightened state.

[0009] Preferably, the expansion positioning member includes: an expansion plug-in column, a water-absorbent resin and a tension spring, the expansion plug-in column is slidably plugged into the side of the piston cylinder; the expansion plug-in column is sleeved with a water-absorbent resin; the end of the water-absorbent resin is attached to the outside of the rotating connecting cylinder; the outside of the water-absorbent resin is sleeved with a tension spring; the end of the tension spring is connected to the bottom of the expansion plug-in column; the other end of the tension spring is connected to the outside of the rotating connecting cylinder; the expansion plug-in column is plugged into the socket on the rotating connecting cylinder; the water-absorbent resin is located between the two blood seepage grooves.

[0010] Preferably, the elastic leak-proof part includes: a piston leak-proof bead and a needle tube leak-proof bead, the piston leak-proof bead is located on the inner side of the rotating connecting cylinder; a spring is provided on the side of the piston leak-proof bead, and the spring on the piston leak-proof bead is sleeved inside the rotating connecting cylinder; the piston leak-proof bead elastically fits on the inner inclined surface of the rotating connecting cylinder; the piston leak-proof bead and the needle tube leak-proof bead are iron core structures; the needle tube leak-proof bead is located on the inner side of the cannula; a spring is provided on the side of the needle tube leak-proof bead, and the spring on the needle tube leak-proof bead is sleeved inside the cannula; the needle tube leak-proof bead elastically fits on the inner inclined surface of the cannula.

[0011] Preferably, the magnetic control component comprises: a magnetic control sleeve, a piston magnet ring and a needle tube magnet ring, the magnetic control sleeve is slidably sleeved on the syringe; the magnetic control sleeve is fixedly sleeved with a piston magnet ring; the piston magnet ring is used to magnetically attract the piston leakage prevention beads; the magnetic control sleeve is fixedly sleeved with a needle tube magnet ring, and the needle tube magnet ring is used to magnetically attract the needle tube leakage prevention beads; the magnetic control sleeve is provided with two through grooves.

[0012] Preferably, the magnetic control component also includes: a second spring and a protective sleeve, the second spring is sleeved inside the magnetic control sleeve; the second spring is connected between the syringe and the magnetic control sleeve; a protective sleeve is fixedly installed at the front end of the magnetic control sleeve; the protective sleeve is located outside the cannula.

[0013] Preferably, the closed protective member includes: a closed sleeve and a first spring, the closed sleeve is slidably sleeved on the protective sleeve; the first spring is sleeved on the protective sleeve; the first spring is connected between the closed sleeve and the magnetic control sleeve; the elastic force of the first spring is greater than that of the second spring.

[0014] Preferably, the sealing protection member further comprises: a sealing rubber membrane, which is fixedly mounted on the front end of the sealing sleeve; the sealing rubber membrane is located at the front side of the needle of the cannula.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention adopts an automatic mixer to mix arterial blood, which can prevent arterial blood from coagulating and ensure the quality of anticoagulation of the structure. At the same time, the mixing of the structure is more comprehensive, which can avoid the problem that the traditional method of relying on manual hands to rub the blood gas needle for mixing is not comprehensive enough. The expansion positioning part is used to control the rotation of the rotating impeller to quickly complete the mixing work, which can ensure the timeliness of blood anticoagulation and avoid the blood not being mixed for a long time after puncture sampling, and can avoid manual forgetting or delay. The structure utilizes the water-absorbing and swelling characteristics of the water-absorbing resin to ensure the timeliness of blood anticoagulation. At the same time, it can expand after the blood is detected to ensure that the sampling amount meets the standard, improve the standardization of the sampling amount, and improve the safety of the use of the structure.

[0017] The use of piston leak-proof beads in conjunction with needle leak-proof beads can ensure the isolation of blood while making it easier to perform negative pressure blood drawing on patients with low blood pressure during sampling, expel excessive bubbles, and prevent bubbles from affecting the accuracy of blood gas testing. At the same time, there is no need to remove the cannula needle from the patient's body to ensure the purity of the blood. The needle leak-proof beads can prevent air from being injected into the patient's artery, causing safety hazards such as pulmonary embolism in the patient.

[0018] The use of a closed protection part in conjunction with a magnetic control part can control the automatic opening of the piston leak-proof bead and the needle leak-proof bead after the needle is inserted into the subcutaneous tissue when the patient is punctured and blood is drawn. After the blood drawing is completed, the piston leak-proof bead and the needle leak-proof bead are automatically closed before the needle is taken out from the subcutaneous tissue. This can prevent blood leakage and increase the purity of the blood sample. It also reduces the coagulation blockage rate of the needle, optimizes the current sampling work, and avoids the problem of manual operation not sealing in time and affecting the accuracy of blood gas detection. Magnetic control also avoids the problem that the traditional blood gas needle needs to ensure that the blood pressure can fill the syringe, which requires reducing the spring pressure on the piston leak-proof bead, and the corresponding sealing effect is poor, and it is easy to leak due to shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an arterial blood gas analysis and collection puncture device of the present invention;

[0020] Figure 2 A cross-sectional view of the internal structure of an arterial blood gas analysis and collection puncture device of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the puncture needle barrel of the present invention;

[0022] Figure 4 This is a schematic diagram of the installation position of the rotating connecting cylinder of the present invention;

[0023] Figure 5 For the present invention Figure 3 A magnified view of the structure of the middle C region;

[0024] Figure 6 This is a schematic diagram of the structure of the automatic mixing unit of the present invention;

[0025] Figure 7 For the present invention Figure 2 A magnified view of the structure of the middle E region;

[0026] Figure 8 This is a schematic diagram of the structure of the magnetic control component of the present invention;

[0027] Fig. 9 For the present invention Figure 3 Enlarged view of the structure of the middle G region.

[0028] In the figure: 1. puncture needle cylinder; 101. syringe; 1011. cannula; 102. piston cylinder; 103. rubber piston; 2. automatic mixing part; 201. mixing rotating rod; 202. rotating connecting cylinder; 2021. blood seepage groove; 203. rotating impeller; 204. spring; 3. expansion positioning part; 301. expansion plug column; 302. water-absorbing resin; 303. tension spring; 4. elastic leak-proof part; 401. piston leak-proof bead; 402. needle tube leak-proof bead; 5. magnetic control part; 501. magnetic control sleeve; 502. piston magnet ring; 503. needle tube magnet ring; 504. second spring; 505. protective sleeve; 6. closed protection part; 601. closed sleeve tube; 602. first spring; 603. closed rubber membrane. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 9 As shown:

[0031] The present invention provides a technical solution: an arterial blood gas analysis and collection puncture device, comprising a puncture needle barrel component 1, an automatic mixing component 2 is rotatably installed inside the puncture needle barrel component 1, and the automatic mixing component 2 is used to mix arterial blood; an expansion positioning component 3 is installed on the puncture needle barrel component 1; the expansion positioning component 3 is used to limit the automatic mixing component 2; the expansion positioning component 3 is used to detect the amount of arterial blood extraction; an elastic leak-proof component 4 is installed inside the automatic mixing component 2 and the puncture needle barrel component 1; a magnetic control component 5 is installed on the puncture needle barrel component 1; the magnetic control component 5 is used to magnetically adsorb the elastic leak-proof component 4; a closed protection component 6 is installed on the magnetic control component 5; the closed protection component 6 is located at the front end of the puncture needle barrel component 1; the puncture needle barrel component 1 comprises: a syringe 101 and a cannula 1011, the cannula 1011 is fixedly installed at the front end of the syringe 101; the inner side of the cannula 1011 is a slope structure; a scale is provided on the syringe 101; and a needle is plugged into the cannula 1011.

[0032] The puncture needle cylinder 1 also includes: a piston cylinder 102 and a rubber piston 103, the piston cylinder 102 is threadedly connected to the syringe 101; a through hole is provided in the middle of the piston cylinder 102; a rubber piston 103 is fixedly sleeved on the front end of the piston cylinder 102; the rubber piston 103 is inserted into the inside of the syringe 101; the outer side of the rubber piston 103 is used to fit the inner side of the syringe 101; the syringe 101 is pre-coated with heparin anticoagulant; the automatic mixing part 2 includes: a mixing rotating rod 201, a rotating connecting cylinder 202 and a blood seepage groove 2021, and a mixing rotating rod 201 is provided. The rotating rod 201 is rotatably sleeved in the piston cylinder 102; a rotating connecting cylinder 202 is fixedly installed at the front end of the mixing rotating rod 201, and the rotating connecting cylinder 202 is rotatably sleeved in the piston cylinder 102; the rotating connecting cylinder 202 is a hollow structure; two blood seepage grooves 2021 are provided on the rotating connecting cylinder 202; a plug hole is provided at a position between the two blood seepage grooves 2021 on the rotating connecting cylinder 202; the automatic mixing element 2 also includes: a rotating impeller 203 and a spring 204, the rotating impeller 203 is fixedly installed on the rotating connecting cylinder 20 2; a through hole is provided in the middle of the rotating impeller 203, the mixing rotating rod 201 and the rotating connecting cylinder 202; the inner side of the rotating connecting cylinder 202 is a slope structure; the impeller of the rotating impeller 203 is located inside the syringe 101; the end of the spring 204 is connected to the rotating impeller 203; the other end of the spring 204 is connected to the inner side of the piston cylinder 102; the spring 204 is located inside the piston cylinder 102; the spring 204 is in a tightened state, and the automatic mixing element 2 can be used to mix arterial blood, prevent arterial blood from clotting, and ensure This structure improves the quality of anticoagulated blood and mixes it more comprehensively, avoiding the problem that the traditional method of relying on manual mixing by rubbing the blood gas needle with both hands is not comprehensive enough. This structure can automatically complete the mixing and anticoagulation work to prevent heparin from failing to mix after the blood is introduced into the syringe 101 and affecting the quality of anticoagulated blood. At the same time, this structure is compact and can use the spring 204 to control the rotation of the rotating impeller 203 to quickly complete the mixing work. After the needle of the cannula 1011 is inserted into the arterial blood vessel, the blood will fill and fit the syringe 101 under the action of blood pressure.

[0033] The expansion positioning member 3 includes: an expansion plug column 301, a water-absorbing resin 302 and a tension spring 303. The expansion plug column 301 is slidably plugged into the side of the piston cylinder 102; the water-absorbing resin 302 is sleeved on the expansion plug column 301; the end of the water-absorbing resin 302 is attached to the outside of the rotating connecting cylinder 202; the tension spring 303 is sleeved on the outside of the water-absorbing resin 302; the end of the tension spring 303 is connected to the bottom of the expansion plug column 301; the other end of the tension spring 303 is connected to the outside of the rotating connecting cylinder 202; the expansion plug column 30 1 is plugged into the jack on the rotating connecting tube 202; the water-absorbing resin 302 is located between the two blood seepage grooves 2021, and the expansion positioning member 3 is used to control the rotation of the rotating impeller 203 to quickly complete the mixing work, which can ensure the timeliness of blood anticoagulation and avoid the blood not being mixed for a long time after puncture sampling, which can avoid artificial forgetting or delay. This structure utilizes the water-absorbing and swelling characteristics of the water-absorbing resin 302 to ensure the timeliness of blood anticoagulation and can expand after blood is detected to ensure the sampling The sample volume meets the standard, which can improve the standardization of the sampling volume and the safety of the use of this structure. The structure is simpler and more reasonable, the cost is lower, and the timeliness of sample mixing after sampling can be guaranteed without a complex electronic control structure. If the blood and the anticoagulant are not mixed in time or insufficiently, tiny blood clots are likely to appear, which will not only lead to inaccurate blood gas analysis results, but may even cause blockage of the blood gas analyzer. In addition, rapid mixing can ensure that the anticoagulant is fully effective, further prevent the formation of blood clots, and thus ensure the reliability of the blood gas analysis results. When the arterial blood in the syringe 101 gradually increases, the arterial blood in the syringe 101 gradually overflows into the rotating connecting tube 202, and then is absorbed by the water-absorbing resin 302 through the blood seepage groove 2021. The characteristic of the water-absorbing resin 302 is that it will expand after absorbing blood, driving the expansion plug-in column 301 to move and separate from the rotating connecting tube 202. Under the elastic force of the spring 204, the rotating impeller 203 can quickly mix the arterial blood inside the syringe 101, thereby ensuring the quality of anticoagulated blood.

[0034] The elastic leak-proof member 4 comprises: a piston leak-proof bead 401 and a needle tube leak-proof bead 402. The piston leak-proof bead 401 is located inside the rotating connecting tube 202. A spring is provided on the side of the piston leak-proof bead 401, and the spring on the piston leak-proof bead 401 is sleeved inside the rotating connecting tube 202. The piston leak-proof bead 401 elastically fits the inner inclined surface of the rotating connecting tube 202. The piston leak-proof bead 401 and the needle tube leak-proof bead 402 are iron core structures. The needle tube leak-proof bead 401 is located inside the cannula 10 11 inside; a spring is provided on the side of the needle tube anti-leakage bead 402, and the spring on the needle tube anti-leakage bead 402 is sleeved inside the cannula 1011; the needle tube anti-leakage bead 402 elastically fits the inner inclined surface of the cannula 1011, and the piston anti-leakage bead 401 is used in conjunction with the needle tube anti-leakage bead 402. The structure is simple, which can ensure that the blood is isolated and can make it easier to perform negative pressure blood drawing for patients with low blood pressure during sampling, discharge excessive bubbles, and prevent bubbles from affecting the accuracy of blood gas detection. There is no need to pull out the needle of the cannula 1011 from the patient's body to ensure the purity of the blood. The needle tube leak-proof bead 402 can prevent air from being injected into the patient's artery, causing safety hazards such as pulmonary embolism in the patient. The operation is simple and flexible, which reduces safety hazards and prevents blood samples with bubbles from affecting the accuracy of subsequent blood gas detection. When negative pressure is required to draw arterial blood, medical gloves can be used to press one end of the mixing rotating rod 201 with a finger for sealing, and then the piston cylinder 102 is rotated. At this time, the piston leak-proof bead 401 cannot perform one-way exhaust work, and blood can be directly sucked by negative pressure. When bubbles need to be discharged, the finger does not cover the end of the mixing rotating rod 201, and the piston cylinder 102 can be directly rotated and moved down. The piston leak-proof bead 401 uses its elastic fit to rotate the inner side of the connecting cylinder 202 to discharge air. The needle tube leak-proof bead 402 elastically fits the inner side of the cannula 1011, which can play a sealing role to prevent backflow and bubbles from entering the patient's artery and causing safety hazards.

[0035] Embodiment 2, on the basis of embodiment 1, the magnetic control member 5 comprises: a magnetic control sleeve 501, a piston magnet ring 502 and a needle tube magnet ring 503, the magnetic control sleeve 501 is slidably sleeved on the syringe 101; the piston magnet ring 502 is fixedly sleeved on the magnetic control sleeve 501; the piston magnet ring 502 is used to magnetically attract the piston anti-leakage bead 401; the needle tube magnet ring 503 is fixedly sleeved on the magnetic control sleeve 501, and the needle tube magnet ring 503 is used to magnetically attract the needle tube anti-leakage bead 402; two through grooves are provided on the magnetic control sleeve 501; the magnetic control member 5 also comprises: a second spring 504 and a protective sleeve 505, the second spring 504 is sleeved inside the magnetic control sleeve 501; the second The spring 504 is connected between the syringe 101 and the magnetic control sleeve 501; a protective sleeve 505 is fixedly installed at the front end of the magnetic control sleeve 501; the protective sleeve 505 is located outside the cannula 1011; the closed protective member 6 includes: a closed sleeve 601 and a first spring 602, the closed sleeve 601 is slidably sleeved on the protective sleeve 505; the protective sleeve 505 is sleeved with the first spring 602; the first spring 602 is connected between the closed sleeve 601 and the magnetic control sleeve 501; the elastic force of the first spring 602 is greater than that of the second spring 504; the closed protective member 6 also includes: a closed rubber membrane 603, which is fixedly installed at the front end of the closed sleeve 601;The sealing rubber membrane 603 is located at the front side of the needle of the cannula 1011. The sealing protection piece 6 can be used to seal the needle of the cannula 1011, which can ensure the safety of the structure and reduce the potential safety hazard of puncture caused by the needle of the cannula 1011. At the same time, the sealing protection piece 6 can be used in conjunction with the magnetic control piece 5 to control the automatic opening of the piston leak-proof bead 401 and the needle tube leak-proof bead 402 after the needle is inserted into the subcutaneous tissue when puncturing and drawing blood from the patient, and the automatic sealing of the piston leak-proof bead 401 and the needle tube leak-proof bead 402 before the needle is taken out from the subcutaneous tissue after the blood drawing is completed, so as to prevent blood leakage, increase the purity of the blood sample, and reduce the coagulation blockage rate of the needle, thereby optimizing the current sampling work and making the sample more accurate. The control of the structure is more accurate and faster, avoiding the problem of manual operation that the sealing is not timely enough and affecting the accuracy of blood gas detection. The structure uses magnetic control, which is more accurate and also avoids the problem that the traditional blood gas needle needs to ensure that the blood pressure can fill the syringe 101, which requires lowering the piston leak-proof bead 4 01, the corresponding sealing effect is not good, shaking and other situations will easily leak, poor safety, easy to damage the blood sample, if the arterial blood sample is not sealed in time after extraction, and is in contact with the air, key indicators such as oxygen and carbon dioxide partial pressure in the blood may change, resulting in inaccurate test results, such inaccurate results may mislead the doctor's diagnosis, and then affect the patient's treatment plan and prognosis assessment, after the blood sampling is completed, as the needle is pulled out, at this time, under the elastic compression of the second spring 504, the closed sleeve 601 gradually moves outward to reset, the piston magnet ring 502 and the needle tube magnet ring 503 will release the magnetic suction piston leak-proof bead 401 and the needle tube leak-proof bead 402, at this time, the piston leak-proof bead 401 and the needle tube leak-proof bead 402 can seal the arterial blood sample inside the syringe 101, and then the needle can be pulled out of the patient's body, the first spring 602 plays the role of adapting to the different depths of the patient's arterial blood vessels, and can elastically support the closed sleeve 601 to expand and contract. ;

[0036] The working principle of this embodiment is as follows: first, the piston cylinder 102 is rotated to drive the rubber piston 103 to move, and the piston anti-leakage bead 401 is driven to move to just align with the piston magnet ring 502. This position is also the standard position for arterial blood sampling. A blood sampling cavity is formed in the syringe 101. The staff holds the syringe 101 and inserts the needle of the cannula 1011 into the arterial blood vessel. Under the action of blood pressure, the blood will fill and fit the syringe 101. In this process, the needle of the cannula 1011 will pierce the sealing rubber membrane 603, and the sealing The closed sleeve 601 will be against the outside of the skin. At this time, as the needle is pressed down to the subcutaneous tissue, the elastic force of the first spring 602 is greater than the second spring 504. The closed sleeve 601 will drive the magnetic control sleeve 501 to compress the second spring 504 first. At this time, the piston magnet ring 502 and the needle tube magnet ring 503 will be displaced, and then the piston leak-proof bead 401 and the needle tube leak-proof bead 402 will be magnetically attracted, and the springs on the piston leak-proof bead 401 and the needle tube leak-proof bead 402 will be compressed. At this time, the blood can fill the syringe 101 normally, and the movement in the syringe 101 When the arterial blood gradually increases, the arterial blood in the syringe 101 gradually overflows into the rotating connecting tube 202, and then is absorbed by the water-absorbing resin 302 through the blood seepage groove 2021. The characteristic of the water-absorbing resin 302 is that it will expand after absorbing blood, thereby lengthening the tension spring 303, and at the same time driving the expansion plug column 301 to move and separate from the rotating connecting tube 202. At this time, the rotating connecting tube 202 loses its limit, and under the elastic force of the clockwork 204, the rotating impeller 203 can quickly mix the arterial blood in the syringe 101, ensuring the anticoagulation of blood. After the blood sampling is completed, as the needle is pulled out, the closed sleeve 601 gradually moves outward and resets under the elastic compression of the second spring 504, and the piston magnet ring 502 and the needle tube magnet ring 503 will release the magnetic attraction of the piston anti-leakage bead 401 and the needle tube anti-leakage bead 402. At this time, the piston anti-leakage bead 401 and the needle tube anti-leakage bead 402 can cooperate with the springs set by themselves to respectively fit the rotating connecting cylinder 202 and the cannula 1011, close the arterial blood sample inside the syringe 101, and then the needle can be pulled out of the patient's body;

[0037] After the needle of the cannula 1011 is inserted into the artery, if the patient's blood pressure is low, the blood cannot fill the syringe 101 under natural pressure. At this time, the bottom of the rubber piston 103 is not filled with blood. At this time, in order to ensure the sampling volume, the staff can use medical gloves to press one end of the mixing rotating rod 201 with their fingers to seal it, and then rotate the piston cylinder 102. At this time, the piston leak-proof bead 401 cannot perform ventilation work, and blood can be directly sucked through negative pressure. When bubbles need to be discharged, the mixing rotating rod 201 is no longer pressed. The piston cylinder 102 can be directly rotated and moved down. The piston leak-proof bead 401 uses its elastic fit to rotate the inner side of the connecting cylinder 202 to discharge air. In this process, the needle tube leak-proof bead 402 elastically fits the inner side of the cannula 1011, which can play a one-way sealing role to prevent backflow and bubbles from entering the patient's artery, causing safety hazards.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An arterial blood gas analysis collection puncture device, comprising a puncture needle cylinder (1), wherein an automatic mixing element (2) is rotatably mounted inside the puncture needle cylinder (1), characterized in that: The automatic mixer (2) is used to mix arterial blood; an expansion positioning member (3) is installed on the puncture needle barrel member (1); the expansion positioning member (3) is used to limit the automatic mixer (2); the expansion positioning member (3) is used to detect the amount of arterial blood drawn; An elastic leak-proof component (4) is installed inside the automatic mixing component (2) and the puncture needle component (1); The puncture needle cylinder (1) is provided with a magnetic control component (5); the magnetic control component (5) is used to magnetically absorb the elastic leakage prevention component (4); A sealing protection member (6) is installed on the magnetic control member (5); the sealing protection member (6) is located at the front end of the puncture needle cylinder member (1); The puncture needle cylinder component (1) comprises: a syringe (101) and a cannula (1011); the front end of the syringe (101) is fixedly mounted with the cannula (1011); the inner side of the cannula (1011) is an inclined surface structure; the syringe (101) is provided with scales; and the cannula (1011) is plugged with a needle.

2. The arterial blood gas analysis and collection puncture device according to claim 1, characterized in that: The puncture needle cylinder (1) further comprises: a piston cylinder (102) and a rubber piston (103); the piston cylinder (102) is threadedly connected in the syringe (101); a through hole is provided in the middle of the piston cylinder (102); a rubber piston (103) is fixedly sleeved at the front end of the piston cylinder (102); the rubber piston (103) is inserted into the inside of the syringe (101); and the outer side of the rubber piston (103) is used to fit the inner side of the syringe (101).

3. The arterial blood gas analysis collection puncture device according to claim 2, characterized in that: The automatic mixing element (2) comprises: a mixing rotating rod (201), a rotating connecting cylinder (202) and a blood seepage groove (2021); the mixing rotating rod (201) is rotatably sleeved inside the piston cylinder (102); a rotating connecting cylinder (202) is fixedly mounted on the front end of the mixing rotating rod (201), and the rotating connecting cylinder (202) is rotatably sleeved inside the piston cylinder (102); the rotating connecting cylinder (202) is a hollow structure; two blood seepage grooves (2021) are provided on the rotating connecting cylinder (202); and a plug hole is provided on the rotating connecting cylinder (202) at a position between the two blood seepage grooves (2021).

4. The arterial blood gas analysis collection puncture device according to claim 3, characterized in that: The automatic mixer (2) further comprises: a rotating impeller (203) and a spring (204); the rotating impeller (203) is fixedly mounted on the rotating connecting cylinder (202); a through hole is provided in the middle of the rotating impeller (203), the mixing rotating rod (201) and the rotating connecting cylinder (202); the inner side of the rotating connecting cylinder (202) is a slope structure; the impeller of the rotating impeller (203) is located inside the syringe (101); the end of the spring (204) is connected to the rotating impeller (203); the other end of the spring (204) is connected to the inner side of the piston cylinder (102); the spring (204) is located inside the piston cylinder (102); and the spring (204) is in a tightened state.

5. The arterial blood gas analysis collection puncture device according to claim 4, characterized in that: The expansion positioning member (3) comprises: an expansion plug-in column (301), a water-absorbing resin (302) and a tension spring (303); the expansion plug-in column (301) is slidably plugged into the side of the piston cylinder (102); the water-absorbing resin (302) is sleeved on the expansion plug-in column (301); the end of the water-absorbing resin (302) is attached to the outside of the rotating connecting cylinder (202); the tension spring (303) is sleeved on the outside of the water-absorbing resin (302); the end of the tension spring (303) is connected to the bottom of the expansion plug-in column (301); the other end of the tension spring (303) is connected to the outside of the rotating connecting cylinder (202); the expansion plug-in column (301) is plugged into the jack on the rotating connecting cylinder (202); the water-absorbing resin (302) is located between the two blood seepage grooves (2021).

6. The arterial blood gas analysis collection puncture device according to claim 4, characterized in that: The elastic leak-proof component (4) comprises: a piston leak-proof bead (401) and a needle tube leak-proof bead (402); the piston leak-proof bead (401) is located inside the rotating connecting tube (202); a spring is provided on the side of the piston leak-proof bead (401), and the spring on the piston leak-proof bead (401) is sleeved inside the rotating connecting tube (202); the piston leak-proof bead (401) elastically fits the inner inclined surface of the rotating connecting tube (202); the piston leak-proof bead (401) and the needle tube leak-proof bead (402) are of an iron core structure; the needle tube leak-proof bead (402) is located inside the insertion tube (1011); a spring is provided on the side of the needle tube leak-proof bead (402), and the spring on the needle tube leak-proof bead (402) is sleeved inside the insertion tube (1011); the needle tube leak-proof bead (402) elastically fits the inner inclined surface of the insertion tube (1011).

7. The arterial blood gas analysis and collection puncture device according to claim 6, characterized in that: The magnetic control member (5) comprises: a magnetic control sleeve (501), a piston magnet ring (502) and a needle tube magnet ring (503); the magnetic control sleeve (501) is slidably sleeved on the syringe (101); the piston magnet ring (502) is fixedly sleeved on the magnetic control sleeve (501); the piston magnet ring (502) is used for magnetically attracting the piston anti-leakage bead (401); the needle tube magnet ring (503) is fixedly sleeved on the magnetic control sleeve (501), and the needle tube magnet ring (503) is used for magnetically attracting the needle tube anti-leakage bead (402); and two through grooves are provided on the magnetic control sleeve (501).

8. The arterial blood gas analysis and collection puncture device according to claim 7, characterized in that: The magnetic control member (5) further comprises: a second spring (504) and a protective sleeve (505); the second spring (504) is sleeved inside the magnetic control sleeve (501); the second spring (504) is connected between the syringe (101) and the magnetic control sleeve (501); the protective sleeve (505) is fixedly mounted at the front end of the magnetic control sleeve (501); the protective sleeve (505) is located outside the cannula (1011).

9. The arterial blood gas analysis collection puncture device according to claim 8, characterized in that: The closed protective member (6) comprises: a closed sleeve (601) and a first spring (602); the closed sleeve (601) is slidably sleeved on the protective sleeve (505); the first spring (602) is sleeved on the protective sleeve (505); the first spring (602) is connected between the closed sleeve (601) and the magnetic control sleeve (501); the elastic force of the first spring (602) is greater than that of the second spring (504).

10. The arterial blood gas analysis and collection puncture device according to claim 9, characterized in that: The sealing protection member (6) further comprises: a sealing rubber membrane (603), wherein the sealing rubber membrane (603) is fixedly mounted on the front end of the sealing sleeve (601); the sealing rubber membrane (603) is located in front of the needle of the cannula (1011).

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