Single-hand sample reserving test tube rack and operation method

Abstract

The invention discloses a single-hand sample reserving test tube rack and an operation method.The test tube rack comprises a bottom plate, a test tube base and a top limiting piece, the lower end face of the test tube base is fixedly connected with the bottom plate through bolts, the test tube base is provided with a plurality of test tube cavities used for allowing test tubes to penetrate through, and the upper end of the test tube base is fixedly connected with the top limiting piece through bolts; the bottom plate, the test tube seat and the top limiting piece are mutually fixed into a whole; a semi-arc-shaped limiting cavity is formed in the side face, facing an operator, of the top limiting piece, and a limiting protrusion matched with a top tube opening of the test tube is formed in the lower portion of an end opening of the semi-arc-shaped limiting cavity. An existing test tube rack is not provided with a buckle, two-hand operation is needed during blood sampling, and a needle head cannot be pulled out with a single hand. The test tube rack is operated with a single hand, is independent, does not misplace specimens, is adhered to an operation table top with a single-hand sample reserving function, is convenient to operate, can be freely adhered to a place where an operator is convenient to use, can be independently used on the left side and the right side, and can distinguish different specimens; and errors are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of blood sampling auxiliary facilities, in particular to a single-hand sample tube rack and an operation method. BACKGROUND

[0002] In medical and testing scenarios such as clinical blood sampling and laboratory sample processing, a test tube rack is a core auxiliary tool for carrying and organizing blood sampling test tubes, and its convenience of use, safety of operation and accuracy of specimen placement directly affect the work efficiency and medical quality. The current market widely used traditional test tube racks are mainly designed with basic multi-layer grid frame or single test tube socket structure, which can only realize the simple support function of test tubes, and many problems and deficiencies cannot be ignored in actual blood sampling operation.

[0003] Firstly, the existing test tube racks generally lack effective limiting and fixing structures for test tubes, which leads to the need for two hands to cooperate to complete the blood sampling operation. In the blood sampling process, the operator needs to hold the test tube rack with one hand to prevent it from falling or the test tube from shaking, and the other hand to perform the insertion and removal operation of the blood sampling needle. This two-handed operation mode greatly limits the operation flexibility. Especially in emergency blood sampling, batch sample processing or when the operator needs to simultaneously perform other auxiliary work (such as checking patient information and recording data), the situation of both hands being occupied will significantly reduce work efficiency, and even cause action errors due to nervous operation rhythm. More seriously, during the two-handed operation process, if the test tube is accidentally displaced due to insufficient stability of the test tube rack, it may cause the blood sampling needle to mistakenly stab the operator's hand, posing a high risk of needle stick injury, which directly threatens the occupational safety of medical staff.

[0004] Secondly, the structure design of the existing test tube racks lacks independence and distinction, which easily causes specimen misplacement. The traditional test tube rack is usually an integrated whole structure, all test tube sockets are densely arranged without clear independent partition or identification auxiliary structure, and when multiple different patients or different types of specimens need to be processed at the same time, there is a lack of effective physical distinction boundary between the test tubes. In a busy operation scene, the operator only relies on visual memory to distinguish the test tubes, which is easy to cause specimen misplacement due to factors such as similar socket positions and similar test tube appearances, and further cause serious medical errors such as confusion of subsequent test results and mismatch of patient information, which not only increases the rework cost, but also may mislead the diagnosis and treatment.

[0005] Furthermore, the existing test tube rack installation and fixing mode has limitations, which further aggravates the inconvenience of operation. Most traditional test tube racks have no special fixing structure and are placed on the operation table surface only by their own weight. When the test tubes are inserted or slightly collide, displacement or even overturning may occur, resulting in test tube sliding and breaking, specimen leakage. Although some test tube racks are provided with simple fixing structure, they also have problems of complicated installation, fixed position and cannot be adjusted, which cannot be placed according to the operation habit of the operator and the layout of the operation table, and the ability to adapt to different working scenes is reduced.

[0006] The core reason leading to the above defects is that the design concept of the existing test tube rack only focuses on the basic function of "carrying test tubes", ignoring the core needs of "safety, efficiency and precision" in blood sampling operation. The dynamic process of blood sampling operation is not fully considered in the design, there is no two-way limiting (upper and lower end fixing) design for the test tube, and the stable fixing of the test tube cannot be realized. At the same time, the ergonomic needs of one-handed operation are not taken into account, and independent structure units are not designed for multiple specimen differentiation. Finally, it is difficult to meet the professional operation requirements of clinical and inspection scenes in actual application. Therefore, there is an urgent need for a test tube rack structure that can realize one-handed operation, ensure independent and stable placement of test tubes, and avoid specimen misplacement, to solve the many pain points existing in the prior art. SUMMARY

[0007] Therefore, in view of the above-mentioned deficiencies, the present application provides a one-handed sample leaving test tube rack and operation method. The existing test tube rack has no buckle setting, and needs to be operated with both hands during blood sampling, and the needle cannot be pulled out with one hand. The present application is designed for one-handed operation, independent test tube rack, and correct specimen placement. The one-handed sample leaving test tube rack is pasted on the operation table surface, is convenient to operate, can be freely pasted at a convenient place for the operator, is used separately on the left and right sides, can distinguish different specimens, and can avoid errors.

[0008] The present application is implemented as follows: a one-handed sample leaving test tube rack is constructed. The composition of the test tube rack includes a bottom plate, a test tube seat and a top limiting piece. The lower end surface of the test tube seat is fixedly connected to the bottom plate by bolts. The test tube seat itself is provided with a plurality of test tube cavities for inserting test tubes. The upper end of the test tube seat is fixedly connected to the top limiting piece by bolts, so that the bottom plate, the test tube seat and the top limiting piece are fixedly integrated as a whole. A semicircular arc limiting cavity is formed on the side of the top limiting piece facing the operator. A limiting protrusion matching the top tube opening of the test tube is formed at the lower part of the port of the semicircular arc limiting cavity. When the lower end of the test tube is inserted into the test tube cavity, the upper end of the blood sampling test tube can be limited in the semicircular arc limiting cavity by the limiting protrusion.

[0009] According to the one-handed sample leaving test tube rack, the bottom side of the bottom plate is fixed to the on-site operation table surface by 3M glue. The material of the test tube seat is white POM. The material of the top limiting piece is white POM.

[0010] An operation method of the above-mentioned single-hand sample-keeping test tube rack; when blood sampling is performed through the test tube rack, the test tube rack is first fixed on the operation table by the bottom side of the bottom, the lower end of the test tube for blood sampling is inserted into the test tube cavity, and the upper end of the test tube is inserted into the semicircular arc-shaped limiting cavity, and at this time, the upper end of the test tube for blood sampling is limited in the semicircular arc-shaped limiting cavity by the limiting protrusion 32; since the test tube has been fixed and limited, the blood sampling operator can perform the operation with one hand, can insert the bleeding needle into the test tube along the top of the test tube with one hand, and can also pull out the bleeding needle with one hand, thereby avoiding needle stick injury.

[0011] The single-hand sample-keeping test tube rack has the following advantages: through scientific structure design and reasonable material selection, the single-hand sample-keeping test tube rack effectively solves the core pain points of the traditional test tube rack in blood sampling operation, such as difficult single-hand operation, sample misplacement, insufficient safety, and the like, and has beneficial effects in the following aspects. 1. Safe and efficient single-hand operation is realized, and the professional risk is significantly reduced. The double-fixing structure of "test tube cavity + semicircular arc-shaped limiting cavity + limiting protrusion" of the patent makes the upper and lower ends of the test tube be stably limited, the lower end of the test tube is inserted into the test tube cavity of the test tube seat to realize basic positioning, and the upper end is clamped into the semicircular arc-shaped limiting cavity through the limiting protrusion to complete fastening, thereby forming a stable state of "two-way constraint". This design makes the test tube fixed without manual holding during blood sampling, and the operator can completely free the single hand and focus on the insertion and extraction operation of the blood sampling needle, thereby completely changing the operation mode of the traditional test tube rack which needs to be operated by two hands (one hand holds the rack and the other hand operates). Single-hand operation not only improves the work efficiency in the emergency blood sampling and batch sample processing scenarios, but also fundamentally avoids the risk of blood sampling needle mis-sticking caused by improper two-hand cooperation and accidental displacement of the test tube, thereby providing direct protection for the professional safety of medical staff.

[0012] 2. The independence of sample placement is strengthened, and sample misplacement errors are effectively avoided. The test tube rack supports left and right independent splitting for use, and the semicircular arc-shaped limiting cavity of the top limiting piece provides independent accommodation space for each test tube, thereby changing the disadvantage of the dense insertion hole of the traditional whole test tube rack and the lack of physical division. The operator can place the test tubes in the independent test tube rack units according to the sample types (such as different detection items), patient information and the like, and form a natural sample division boundary through the isolation of physical space. This independent placement mode reduces the dependence on visual memory of the operator, and even in a busy operation scene, it can effectively reduce the sample misplacement problem caused by the similar positions of the insertion holes and the similar appearances of the test tubes, thereby avoiding medical errors such as confusion of subsequent test results and mismatch of patient information, reducing the rework cost, and protecting the accuracy of diagnosis and treatment.

[0013] 3. The installation is convenient and flexible, and is suitable for various operation scenes. The bottom side of the bottom plate is fixed by 3M glue. Compared with the traditional test tube rack which is placed by its own weight or is fixed by bolts, the 3M glue fixing has the following advantages: on the one hand, the 3M glue fixing does not require additional tools, and the operator can freely select the pasting position (such as the left side, the right side or the front of the operation table) according to the operation habit and the layout of the operation table, and can flexibly adapt to the needs of different heights and operation postures; on the other hand, the 3M glue fixing is firm, which can effectively prevent the test tube rack from moving or falling when the test tube is inserted or slightly collided, and can prevent the test tube from sliding and breaking and the specimen from leaking; at the same time, the 3M glue fixing is convenient to disassemble and will not damage the surface of the operation table, which is convenient for subsequent scene adjustment or equipment maintenance.

[0014] 4. The patent selects different materials to realize the functions of each component: the bottom plate is made of 6061 aluminum alloy, which has high strength and good stability, and can provide reliable support for the entire test tube rack to prevent deformation after long-term use; the test tube seat and the top limiting piece are made of white POM material, which not only has excellent wear resistance and impact resistance, can withstand repeated friction and slight collision during the insertion and removal of the test tube, but also has good chemical stability and is not easily corroded by blood specimens and disinfectant reagents. In addition, the white appearance is convenient for observing the state of the test tube and stains, meets the requirements of cleanliness and visualization in medical scenes, and reduces the risk of cross contamination.

[0015] In summary, the single-hand sample test tube rack has multiple advantages of "safe single-hand operation + accurate specimen management + flexible installation and adaptation + durable material protection", which not only improves the efficiency and safety of blood sampling operation, but also reduces the risk of medical errors, perfectly meets the professional needs of clinical blood sampling and laboratory sample processing scenes, and has high practical value and promotion significance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figures 1-5 is the overall implementation schematic diagram of the test tube rack of the present application. DETAILED DESCRIPTION

[0017] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. Figures 1-5 The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0018] Embodiment; the present application provides a single-hand sample test tube rack, which comprises a bottom plate, a test tube seat and a top limiting piece. Figures 1-5As shown, the test tube rack is implemented in the following manner; the composition of the test tube rack includes a bottom plate 10, a test tube seat 20, and a top limiting piece 30, the lower end surface of the test tube seat 20 is fixedly connected with the bottom plate 10 by bolts, the test tube seat 20 itself is provided with a plurality of test tube cavities 41 for inserting test tubes 40, and the upper end of the test tube seat 20 is fixedly connected with the top limiting piece 30 by bolts, so that the bottom plate 10, the test tube seat 20, and the top limiting piece 30 are fixedly integrated as a whole; A semicircular arc-shaped limiting cavity 31 is formed on the side surface of the top limiting piece 30 facing the operator, and a limiting protrusion 32 matching the top opening of the test tube 40 is formed at the lower end of the semicircular arc-shaped limiting cavity 31, so that when the lower end of the test tube 40 is inserted into the test tube cavity 41, the upper end of the blood collection test tube 40 can be limited in the semicircular arc-shaped limiting cavity 31 by the limiting protrusion 32; When implemented; the bottom side of the bottom 10 is fixed to the on-site operation table by 3M glue, When implemented; the material of the test tube seat 20: white POM; When implemented; the material of the top limiting piece 30: white POM.

[0019] The existing test tube rack does not have a buckle, so when collecting blood, both hands need to be operated, and the needle cannot be pulled out with one hand. The present application provides a one-handed sample test tube rack for one-handed operation and independence of the test tube rack, and avoids mistakes by distinguishing different samples.

[0020] An operation method of the above-mentioned one-handed sample test tube rack; when blood collection is performed by the test tube rack, the test tube rack is first fixed to the on-site operation table by the bottom side of the bottom 10, the lower end of the blood collection test tube 40 is inserted into the test tube cavity 41, and the upper end of the test tube 40 is inserted into the semicircular arc-shaped limiting cavity 31, and at this time, the upper end of the blood collection test tube 40 is limited in the semicircular arc-shaped limiting cavity 31 by the limiting protrusion 32; Since the test tube 40 has been limited and fixed, the blood collection operator can operate with one hand, and can insert the bleeding needle into the test tube 40 at the top 40A of the test tube 40 with one hand, or can pull it out with one hand, avoiding needle stick injuries.

[0021] The patent of the one-handed sample test tube rack will be described in detail below; I. Preparation before implementation: component assembly and fixation The implementation of the one-handed sample test tube rack needs to complete the basic assembly and table fixation first, which provides a stable basis for subsequent blood collection operation. The specific steps are as follows: Component assembly: complete the assembly of the bottom plate 10, test tube seat 20 and top limiting piece 30 according to the structural matching relationship. First, align the lower end surface of the test tube seat 20 with the preset bolt hole of the bottom plate 10 (6061 aluminum alloy material), use the bolt of appropriate specification to pass through and tighten, ensure that the two are connected firmly without looseness; then align the bolt hole of the top limiting piece 30 (white POM material) with the corresponding hole position of the upper end of the test tube seat 20, also fasten by bolt, so that the three form an integral structure that cannot be disassembled, ensuring uniform stress and stable structure in subsequent operation. After assembly, check the connection status of each component to avoid shaking caused by loose bolts.

[0022] Table fixing: according to the working habits of blood sampling operators (such as using left or right hand) and the layout of the operation table, determine the installation position of the test tube rack. Clean the surface of the corresponding area of the operation table to remove dust, oil stains and other impurities to enhance adhesion, then tear off the 3M adhesive protective film on the bottom side of the bottom plate 10, and press the test tube rack smoothly at the target position, keep for more than 30 seconds to ensure firm adhesion. The fixing method of 3M adhesive does not require additional tools, and the position can be adjusted according to actual needs, while avoiding damage to the surface of the operation table.

[0023] II. Core operation: placement and limiting fixation of test tube The standard placement of test tube 40 is the core prerequisite for "one-handed operation", which relies on the double constraints of test tube cavity 41 of test tube seat 20 and semicircular arc limiting cavity 31 of top limiting piece 30. The specific implementation steps are as follows: Test tube lower end positioning: take the test tube 40 to be sampled, confirm that the test tube mouth is not damaged and the sealing state is good, then vertically align the lower end of the test tube 40 with the preset test tube cavity 41 of the test tube seat 20. The inner diameter of the test tube cavity 41 matches the outer diameter of the test tube 40, keep the test tube vertical during insertion to avoid friction of the tube wall caused by inclination, until the lower end of the test tube contacts the upper surface of the bottom plate 10 or reaches the preset depth, complete the preliminary positioning of the test tube.

[0024] Test tube upper end limiting: one hand holds the middle part of the test tube 40 (this step is only for auxiliary positioning, and does not need to be held continuously during subsequent blood sampling), aligns the upper end of the test tube 40 with the semicircular arc limiting cavity 31 on the side facing the operator of the top limiting piece 30. Gently press the top of the test tube 40, so that the test tube mouth passes over the limiting protrusion 32 at the lower part of the semicircular arc limiting cavity 31 port — the arc of the limiting protrusion 32 matches the test tube 40 mouth, and a slight elastic deformation will occur during pressing (because the top limiting piece 30 is made of POM material, it has certain toughness). After the upper end of the test tube completely enters the semicircular arc limiting cavity 31, the limiting protrusion 32 returns to its original state, forming a clamping constraint on the upper end of the test tube. At this time, the upper and lower ends of the test tube 40 are fixed, and it can remain stable without manual holding.

[0025] Multi-specimen classification placement: If multiple specimens need to be processed simultaneously, the "left and right separate use" feature of the test tube rack can be utilized to place test tubes 40 of different types (such as different detection items) or different patients in separate test tube rack units (grouping can be achieved by increasing or decreasing the number of test tube racks), or to mark and distinguish in different test tube cavity 41 areas of the same test tube rack, thereby avoiding specimen confusion through physical space isolation.

[0026] III. Blood collection operation implementation: single-handed operation After the test tube 40 is stably fixed, the operator can completely free one hand to perform the blood collection operation according to the standard process, and the specific process is as follows: Blood collection needle insertion: The operator holds the blood collection needle with one hand, accurately inserts the blood collection needle into the test tube 40 along the axis direction of the test tube port according to the position of the top 40A of the test tube 40 (since the position of the test tube is clear after being fixed, there is no need to continuously focus on the position with vision), and completes the establishment of the blood collection path. During this process, the test tube does not shake, avoiding the deviation of needle puncture caused by the displacement of the test tube in traditional two-handed operation.

[0027] Blood collection and needle removal: After blood collection is completed, the operator can still control the removal of the blood collection needle with one hand, slowly and uniformly pulling the blood collection needle out of the test tube 40, and then completing the disposal of the blood collection needle according to medical standards. Since one hand does not need to hold the test tube and the other hand does not need to remove the needle, the risk of needle stick injury caused by accidental movement of the test tube during needle removal is completely eliminated, ensuring operation safety.

[0028] IV. Post-use processing: test tube removal and equipment maintenance After blood collection is completed, the test tube removal and test tube rack maintenance must be completed according to the standard process to ensure that the equipment can be reused, and the specific steps are as follows: Test tube removal: Hold the middle part of the test tube 40 with one hand, gently pull it upwards and apply a slight outward force, so that the test tube port is released from the constraint of the limiting protrusion 32, and then continue to pull the test tube 40 upwards to complete the placement and removal of the specimen test tube. The open structure of the semicircular limiting cavity 31 and the elastic properties of the limiting protrusion 32 make the test tube removal operation convenient and labor-saving, without the need for additional tool assistance.

[0029] Equipment maintenance: Regularly clean the surface of the test tube rack, especially the inside of the test tube cavity 41 and the semicircular limiting cavity 31, which can be wiped with medical disinfectant wipes. Since the test tube seat 20 and the top limiting piece 30 are made of white POM material, stains are easy to identify and resistant to chemical corrosion, and disinfectant reagents will not cause damage; the 6061 aluminum alloy material of the bottom plate 10 can be directly wiped with water, making the maintenance process simple and efficient, and ensuring that the equipment meets the medical cleaning standards.

[0030] The use value and social benefits brought by the implementation of the present application are described below. I. Use value (I) Improve operational efficiency and adapt to high-frequency clinical needs: The test tube rack is quickly fixed by the 3M glue on the bottom plate, and can be flexibly pasted on the operating table at any position according to the operating personnel's habits, without the need for additional installation tools, greatly shortening the equipment arrangement time. Its core design solves the pain point of "two-handed operation" of traditional test tube racks - after the test tube is fixed by the test tube cavity and the semicircular arc limiting cavity, the operator can complete the insertion and removal of the blood collection needle with one hand, without the need to hold the test tube with one hand and operate the needle with the other hand, especially suitable for high-frequency operation scenes such as blood collection windows and emergency rescue. For medical staff who handle a large number of specimens every day, the reduction of time spent on a single operation process can cumulatively result in significant improvement in work efficiency and reduction in patient waiting time.

[0031] (II) Strengthen safety protection and reduce the risk of occupational exposure: Needle stick injury is one of the main occupational risks faced by medical staff during blood collection operations. The traditional test tube rack lacks reliable limiting structure, and the test tube is easy to shake during operation, forcing personnel to use both hands to stabilize the test tube, increasing the probability of needle stick injury. This patent fixes the upper end of the test tube through the limiting protrusion of the top limiting piece and the semicircular arc limiting cavity, avoiding displacement of the test tube during operation, so that the operator can focus on needle operation, reducing the instability factor when operating with one hand, effectively reducing the incidence of needle stick injury. At the same time, the stability of the 6061 aluminum alloy bottom plate and the chemical stability of the white POM material test tube seat and limiting piece ensure that the test tube rack is not easily damaged when contacting various specimens and disinfecting agents, avoiding specimen contamination or safety hazards caused by equipment failure.

[0032] (III) Optimize specimen management and reduce medical errors: The test tube rack supports a layout design that can be used separately on the left and right, allowing clear differentiation between different types of specimens (such as ordinary blood samples and emergency blood samples, specimens from different patient groups, etc.) by placing them in separate zones. Compared to the traditional integrated test tube rack, which is prone to specimen mixing, its independent design creates a specimen isolation mechanism in physical space, combined with clear zone markings (which can be achieved by taking advantage of the easy-to-label properties of white POM material), effectively reducing the risk of specimen misplacement and confusion. This advantage is particularly prominent in medical settings with large amounts of specimens and frequent personnel turnover, reducing problems such as repeated blood collection and diagnostic bias caused by specimen errors, and improving the accuracy of medical services.

[0033] (Four) Reduce the cost of use, improve the adaptability of equipment: In terms of material selection, 6061 aluminum alloy bottom plate has the characteristics of lightweight and high strength, white POM material has the advantages of wear resistance and chemical corrosion resistance, both materials are mature industrial raw materials, the procurement cost is controllable and the service life is long, which can reduce the replacement frequency of test tube racks. At the same time, its structure design does not need to rely on specific specifications of test tubes or operation table, and is suitable for common blood collection test tube models on the market, without the need to modify the existing medical equipment, which reduces the equipment upgrade cost of medical institutions and facilitates the promotion and application in different levels of medical scenes such as hospitals, community health service centers and other medical scenes.

[0034] II. Social benefits (I) Protect the rights and interests of medical staff and improve the level of occupational protection: Needle stick injury not only causes medical staff to be infected with hepatitis B, AIDS and other blood-borne diseases, but also causes psychological anxiety and other occupational health problems. This patent reduces the risk of needle stick injury from the source through structural optimization, which is an important guarantee for the occupational safety of medical staff and meets the requirements of industry standards such as "Medical Institution Medical Staff Hand Hygiene Standard" for occupational protection. Its promotion and application can promote the improvement of blood collection operation protection system in the medical industry, improve the occupational identity and work safety of medical staff, and reduce medical disputes and talent loss caused by occupational exposure.

[0035] (II) Improve the quality of medical services and reduce the waste of social medical resources: Specimen misplacement and confusion is one of the important factors leading to waste of medical resources, which not only consumes manpower and reagent resources, but also may delay diagnosis and affect patient treatment. The independent design of this patent can effectively reduce the specimen error rate and shorten the test cycle, helping to achieve the medical goal of "early diagnosis and early treatment". At the same time, the improvement of single-handed operation efficiency can improve the service capacity of the blood collection window of medical institutions, reduce the waiting time of patients, improve the satisfaction of medical services, and enhance the trust of the public in primary medical services.

[0036] (III) Promote the development of lightweight medical equipment and help popularize primary medical services: Compared with traditional heavy test tube racks, this patented product has simple structure, light weight and convenient installation, especially suitable for medical resource relatively weak scenes such as primary health service centers and community clinics. Its low cost and easy promotion characteristics can promote the popularization of standardized blood collection equipment in primary medical services, narrow the gap in medical equipment configuration between urban and rural areas, and help achieve equalization of basic medical services. At the same time, its humanized design concept can provide a reference for medical equipment research and development, and promote the emergence of more lightweight and practical products that meet the needs of primary medical services.

[0037] (Four) Reduce the spread of medical risk, maintain public health safety: needle stick injury caused by blood-borne disease transmission not only threatens the health of medical staff, but also indirectly affects the patient population through medical staff, which constitutes a public health risk. This patent can reduce the incidence of needle stick injury, reduce the transmission of blood-borne diseases in medical settings, and build a strong line of defense for public health safety. In the event of a public health emergency (such as mass physical examination, infectious disease prevention and control), its efficient and safe operation characteristics can help improve the efficiency of specimen collection, provide equipment support for epidemic prevention and control, disease screening and other work, and ensure the public health emergency response capability.

[0038] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single sample tube rack characterized by; The test tube rack is composed of a bottom plate (10), a test tube seat (20) and a top limiting piece (30), the lower end surface of the test tube seat (20) is fixedly connected with the bottom plate (10) through bolts, the test tube seat (20) is provided with a plurality of test tube cavities (41) for inserting test tubes (40), the upper end of the test tube seat (20) is fixedly connected with the top limiting piece (30) through bolts, so that the bottom plate (10), the test tube seat (20) and the top limiting piece (30) are fixedly integrated as a whole; The top limiting piece (30) is provided with a semicircular limiting cavity (31) on the side facing the operator, the lower end of the semicircular limiting cavity (31) is provided with a limiting protrusion (32) matched with the top opening of the test tube (40), when the lower end of the test tube (40) is inserted into the test tube cavity (41), the upper end of the test tube (40) for blood sampling can be limited in the semicircular limiting cavity (31) through the limiting protrusion (32).

2. The single-streak test tube rack of claim 1, wherein; The bottom side of the bottom plate (10) is fixed on the operation table top by 3M glue, the material of the test tube seat (20) is white POM, and the material of the top limiting piece (30) is white POM.

3. A method of operating a single-streak pipette rack according to claim 1, characterized in that; When blood sampling is performed by using the test tube rack, the test tube rack is fixed on the operation table top by the bottom side of the bottom plate (10), the lower end of the test tube (40) for blood sampling is inserted into the test tube cavity (41), and then the upper end of the test tube (40) is inserted into the semicircular limiting cavity (31), so that the upper end of the test tube (40) for blood sampling is limited in the semicircular limiting cavity (31) through the limiting protrusion (32); since the test tube (40) is limited and fixed, the blood sampling operator can perform the operation by using one hand, the bleeding needle can be inserted into the test tube (40) along the top (40A) of the test tube (40) by using one hand, and the bleeding needle can be pulled out by using one hand, so that needle stick injury is avoided.

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