Blood sampling device

Abstract

The embodiment of the invention provides a blood sampling device. The blood sampling device comprises a first shell, a second shell, a first elastic piece, a connecting piece and a detection disc. The first shell is provided with a containing cavity and an opening communicated with the containing cavity. The second shell penetrates through the opening and is in sliding connection with the first shell, and the first shell can slide relative to the first shell in the first direction and the direction opposite to the first direction. The first elastic piece is elastically connected with the first shell and the second shell, and when the first shell moves towards the first direction relative to the second shell, the first elastic piece elastically deforms. The connecting piece is connected with the first shell. The detection disc is installed on the second shell and provided with an installation groove and a needle opening communicated with the installation groove, and a blood taking needle connected with the connecting piece is arranged in the installation groove. By the adoption of the technical scheme, when the first shell moves relative to the second shell in the first direction and the direction opposite to the first direction, the blood taking needle can be driven to stretch out and draw back, and therefore blood can be conveniently taken.

Description

Technical Field

[0002] The disclosed embodiments relate to the technical field of medical detection equipment, and in particular to a blood sampling device. Background Art

[0004] Medical diagnostic equipment such as blood sampling devices are usually used to collect and measure the concentration of biologically important components in biological fluids, such as the glucose concentration in the blood, to test the patient's blood sugar. For some patients, it is necessary to regularly check the concentration of certain components in the blood. For example, diabetic patients need to regularly test their blood sugar levels, so it is necessary to provide a blood sampling device that is convenient for testing.

[0005] However, the current blood collection method of the blood collection device is that the blood collector uses the blood collection device to puncture the patient's skin. The blood collection process is very dependent on the blood collector's operating experience. Unskilled blood collection techniques can easily cause a bad experience for the patient, and the blood collection efficiency is not high. Therefore, how to improve the convenience of blood collection by the blood collection device is a question worth discussing. Summary of the invention

[0007] In view of this, an embodiment of the present disclosure provides a blood collection device, which is beneficial to improving the convenience of blood collection.

[0008] The disclosed embodiment provides a blood sampling device, including a first shell, a second shell, a first elastic member, a connecting member and a detection disk. The first shell is provided with a receiving cavity and an opening connected to the receiving cavity. The second shell is penetrated through the opening and is slidably connected to the first shell. The first shell can slide relative to the second shell in a first direction and in a direction opposite to the first direction, so that part of the second shell extends into or out of the receiving cavity. The first elastic member elastically connects the first shell and the second shell. When the first shell moves relative to the second shell in a first direction, the first elastic member elastically deforms to store a force that drives the first shell to move in a direction opposite to the first direction. The connecting member is connected to the first shell; the detection disk is mounted on the second shell, the detection disk is provided with a mounting groove and a needle port connected to the mounting groove, the needle port passes through the detection disk along the first direction, a blood collection needle is provided in the mounting groove, and the connecting member is connected to the blood collection needle in the mounting groove along the first direction.

[0009] Optionally, there are multiple mounting grooves, which are arranged at intervals along the circumference of the detection disk, and each mounting groove is provided with a blood collection needle. The detection disk is rotatably connected to the second shell, and the detection disk can rotate relative to the second shell so that one of the multiple mounting grooves corresponds to and connects with the connecting member.

[0010] Optionally, the detection disk includes a first disk and a second disk, the first disk is rotatably connected to the second housing, the first disk is provided with a plurality of mounting grooves and a plurality of needle holes, the plurality of mounting grooves are arranged at intervals along the circumference of the first disk, each mounting groove extends along the radial direction of the first disk and is correspondingly connected to a needle hole. The second disk is connected to the first disk along the axial direction of the first disk, and the second disk covers the plurality of mounting grooves.

[0011] Optionally, along the second direction, a side of the first disk facing away from the second disk is provided with a plurality of convex portions, the plurality of convex portions correspond one-to-one with the plurality of mounting grooves, and the second direction is perpendicular to the first direction and parallel to the axial direction of the first disk. The detection disk also includes a bottom plate, which is arranged between the first disk and the second shell, and a plurality of concave portions are provided on the bottom plate, the plurality of concave portions correspond one-to-one with the plurality of convex portions, and each convex portion can be switched from one concave portion to another concave portion by rotating the first disk.

[0012] Optionally, the first plate has a receiving groove on its side along the second direction, and at least part of the convex part is disposed in the receiving groove. The detection plate also includes a second elastic member disposed in the receiving groove, the second elastic member is elastically connected to the convex part, and is used to drive at least part of the convex part to extend into the concave part.

[0013] Optionally, the connecting member is provided with a connecting protrusion in the opposite direction of the second direction, and each blood collection needle comprises a blood collection part and a connecting part. The blood collection part is used for blood collection; the connecting part is connected to the blood collection part, and the connecting part is provided with a connecting hole in the opposite direction of the second direction, and the connecting protrusion extends into the connecting hole, so that the connecting member is connected to the blood collection needle.

[0014] Optionally, the second disk is movably connected to the first disk, and the second disk can move relative to the first disk in a second direction or in a direction opposite to the second direction. The blood device also includes a third elastic member, which is elastically connected to the connecting member and the second shell. The second disk is used to drive the connecting member to move in the second direction so that the connecting protrusion extends out of the connecting hole, and the third elastic member is deformed when the connecting member moves in the second direction, and stores a force for driving the connecting member to move in a direction opposite to the second direction.

[0015] Optionally, each blood collection needle includes a blood collection part and a connecting part. The blood collection part is used for blood collection. The connecting part is connected to the blood collection part, and the connecting part is provided with a connecting hole along the second direction. The connecting member is provided with a connecting protrusion along the second direction, and the connecting protrusion extends into the connecting hole. The connecting protrusion has a guide surface and a stop surface arranged opposite to each other along the third direction. The guide surface is used to abut against the blood collection needle when the detection disk rotates, so that the connecting protrusion withdraws from the connecting hole of one blood collection needle and extends into the connecting hole of another blood collection needle. The third direction is perpendicular to the first direction and the second direction, and the second direction is parallel to the axial direction of the first disk.

[0016] Optionally, each mounting groove is provided with a test strip and a fourth elastic member, the fourth elastic member is connected to the test disc, along the second direction, the blood collection needle is located between the fourth elastic member and the test strip, and the fourth elastic member is used to drive the blood collection needle to fit the test strip. The second direction is perpendicular to the first direction and parallel to the axial direction of the test disc.

[0017] Optionally, along the second direction, the blood collection needle is provided with a positioning portion toward the fourth elastic member, the fourth elastic member includes a fixing portion and an action portion, the fixing portion is connected to the detection disk. The action portion is connected to the fixing portion, and the action portion is also elastically abutted against the blood collection needle. Along the opposite direction of the second direction, the action portion is provided with a matching portion toward the blood collection needle, and the positioning portion is engaged with the matching portion.

[0018] Compared with the prior art, the technical solution of the embodiment of the present disclosure has the following advantages: The blood sampling device provided by the present disclosure includes a first shell, a second shell, a first elastic member, a connecting member and a detection disk. The first shell is provided with a receiving cavity and an opening connected with the receiving cavity. The second shell is penetrated through the opening and is slidably connected with the first shell. The first shell can slide relative to the second shell in a first direction and in a direction opposite to the first direction, so that part of the second shell extends into or out of the receiving cavity. The first elastic member elastically connects the first shell and the second shell. When the first shell moves relative to the second shell in a first direction, the first elastic member elastically deforms to store the force driving the first shell to move in a direction opposite to the first direction. The connecting member is connected with the first shell; the detection disk is installed on the second shell, and the detection disk is provided with a mounting groove and a needle port connected with the mounting groove. The needle port passes through the detection disk in the first direction. A blood collection needle is provided in the mounting groove, and the connecting member is connected with the blood collection needle in the mounting groove in the first direction. By adopting the above technical solution, when the first shell moves relative to the second shell in the first direction and in a direction opposite to the first direction, the blood collection needle can be driven to extend or retract from the needle port, so that blood collection can be conveniently performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments of the present disclosure or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure of a blood sampling device in an embodiment of the present disclosure is shown; Figure 2 A schematic diagram showing a hidden part structure of a blood sampling device in an embodiment of the present disclosure is shown; Figure 3 A partial cross-sectional view of a blood sampling device according to an embodiment of the present disclosure is shown; Figure 4 A schematic diagram showing a partial structure of a blood sampling device in an embodiment of the present disclosure is shown; Figure 5 A schematic diagram showing a partial structure of a blood sampling device in an embodiment of the present disclosure; Figure 6 A side view of a partial structure of a blood sampling device in an embodiment of the present disclosure is shown; Figure 7 A side view of a partial structure of a blood sampling device in an embodiment of the present disclosure is shown; Figure 8 A side view of a partial structure of a blood sampling device in an embodiment of the present disclosure is shown; Fig. 9 A schematic diagram showing a connecting protrusion and a connecting hole of a blood sampling device in an embodiment of the present disclosure is shown; Fig.10 A side view of a partial structure of a blood collection device in an embodiment of the present disclosure is shown.

[0022] Reference numerals: Blood collection device 100; A first housing 10, a first sub-housing 10a, a second sub-housing 10b, a receiving cavity 11, an opening 12, a guide cylinder 13, and a slide rail 14; A second housing 20, a guide column 21, and a slide bar 22; A first elastic member 30; Connecting member 40, connecting protrusion 41, guide surface 411, stop surface 412; Detection plate 50, first plate 51, mounting groove 511, needle port 512, convex portion 513, receiving groove 514, second plate 52, force block 521, transparent window 522, bottom plate 53, concave portion 531, second elastic member 54, detection test paper 55, fourth elastic member 56, fixing portion 561, action portion 562, matching portion 5621; Blood collection needle 60, blood collection portion 61, connecting portion 62, connecting hole 621, positioning portion 64; A third elastic member 70; Push plate 80; The first direction is X, the second direction is Y, and the third direction is Z. DETAILED DESCRIPTION

[0024] According to the background technology, when testing the blood components of a patient, the patient's skin is pierced with a blood sampling needle on a blood sampling device, and the patient's blood is collected by the blood sampling needle for testing. However, the current blood sampling method of the blood sampling device is that the blood sampling personnel pierces the patient's skin with the blood sampling needle of the blood sampling device, and the blood sampling process is highly dependent on the operating experience of the blood sampling personnel.

[0025] In a specific blood collection method, the blood collector will first fix the patient's blood collection site, then hold the patient's blood collection site with one hand and hold the blood collection device with the other hand. After aiming the blood collection needle of the blood collection device at the patient's blood collection site, the blood collection needle of the blood collection device is inserted into the patient's blood collection site with appropriate force and angle. During this period, the insertion depth needs to be maintained appropriately, and the operator needs to maintain the same force for a certain period of time so that the blood collection needle can collect enough blood. In this way, the blood collection process is highly dependent on the operating experience of the blood collector. If the blood collection technique is not skilled, it is easy to cause a bad experience for the patient, and the blood collection efficiency is not high.

[0026] In order to solve the above technical problems, the blood sampling device in the embodiment of the present disclosure includes a first shell, a second shell, a first elastic member, a connecting member and a detection tray. The first shell is provided with a accommodating chamber and an opening connected to the accommodating chamber. The second shell is penetrated through the opening and is slidably connected to the first shell, and the second shell can slide relative to the first shell in a first direction and in a direction opposite to the first direction. The first elastic member elastically connects the first shell and the second shell, and when the second shell moves in the first direction relative to the first shell, the first elastic member elastically deforms. The connecting member is connected to the first shell. The detection tray is installed on the second shell, and the detection tray is provided with a mounting groove, in which a blood sampling needle is provided, and the connecting member is connected to the blood sampling needle in the mounting groove along the first direction.

[0027] By adopting the above scheme, when drawing blood, the second shell can be directly pressed against the patient's blood collection site, the needle mouth can be fitted on the patient's blood collection site, and then the first shell is held and force is applied in the first direction to move the first shell relative to the second shell in the first direction, so that the first shell drives the connecting member to move in the first direction, and then the connecting member drives the blood collection needle to extend from the needle mouth in the first direction to the mounting groove of the detection plate, so that the blood collection needle pierces the patient's skin for blood collection. After the blood collector maintains the force for a certain period of time and cancels the force, the first elastic member drives the first shell to move in the opposite direction of the first direction, thereby driving the connecting member to move in the opposite direction of the first direction, and then driving the blood collection needle to retract from the needle mouth into the mounting groove. This blood collection method is different from the high requirements on the insertion force and angle of the blood collection needle in the traditional blood collection method, reduces the difficulty of blood collection, reduces the dependence on the proficiency of the blood collector, thereby improving the efficiency of blood collection and realizing convenient blood collection.

[0028] In order to make the above-mentioned objects, features and beneficial effects of the present disclosure more obvious and easy to understand, the specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0029] Reference Figures 1 to 3 , Figure 1 A schematic diagram of the structure of a blood sampling device in an embodiment of the present disclosure is shown. Figure 2A schematic diagram showing a hidden part structure of a blood sampling device in an embodiment of the present disclosure is shown. Figure 3 A partial cross-sectional view of a blood sampling device in an embodiment of the present disclosure is shown. The blood sampling device 100 includes a first housing 10, a second housing 20, a first elastic member 30, a connecting member 40, and a detection tray 50. The first housing 10 and the second housing 20 are movably connected, the first elastic member 30 elastically connects the first housing 10 and the second housing 20, the connecting member 40 is connected to the first housing 10, and the detection tray 50 is installed on the second housing 20. The first housing 10 can be driven to move relative to the second housing 20 along the first direction X and the direction opposite to the first direction X. The first elastic member 30 is deformed when the first housing 10 moves relative to the second housing 20 along the first direction X, and stores the force that drives the first housing 10 to move in the direction opposite to the first direction X. A blood sampling needle 60 is arranged in the detection tray 50, and the connecting member 40 is connected to the blood sampling needle 60 in the detection tray 50. The connecting member 40 follows the first housing 10 to move along the first direction X and the direction opposite to the first direction X, so as to drive the blood sampling needle 60 to move along the first direction X and the direction opposite to the first direction X, thereby realizing blood sampling.

[0030] In some embodiments, see Figure 3 The first housing 10 is provided with a receiving cavity 11 and an opening 12 communicating with the receiving cavity 11, and the second housing 20 is passed through the opening 12 and is slidably connected with the first housing 10. When the first housing 10 moves relative to the second housing 20 along the first direction X, a portion of the second housing 20 gradually extends into the receiving cavity 11; when the first housing 10 moves relative to the second housing 20 in the opposite direction of the first direction X, a portion of the second housing 20 gradually extends out of the receiving cavity 11.

[0031] In some embodiments, see Figure 3 The first housing 10 includes a first sub-housing 10a and a second sub-housing 10b, the first sub-housing 10a and the second sub-housing 10b enclose a receiving cavity 11 and an opening 12, and the first sub-housing 10a and the second sub-housing 10b are arranged along a second direction Y. The second direction Y is perpendicular to the first direction X. The first sub-housing 10a and the second sub-housing 10b are provided to facilitate the assembly of the first housing 10 and the second housing 20.

[0032] In some embodiments, the first sub-shell 10a and the second sub-shell 10b are connected by bolts. In other embodiments, the first sub-shell 10a and the second sub-shell 10b are connected by adhesive. The first sub-shell 10a and the second sub-shell 10b can also be connected by other methods, which will not be listed here.

[0033] In some embodiments, see Figure 3The first housing 10 is provided with a guide cylinder 13, which extends along the first direction X, and the second housing 20 is provided with a guide column 21, which is slidably mounted on the guide cylinder 13. The cooperation between the guide column 21 and the guide cylinder 13 is conducive to making the relative movement of the first housing 10 and the second housing 20 more stable.

[0034] In some embodiments, see Figure 3 The first elastic member 30 is disposed in the guide cylinder 13, and one end of the first elastic member 30 abuts against the bottom of the guide cylinder 13, and the other end of the first elastic member 30 abuts against the guide column 21. The first elastic member 30 is disposed in the guide cylinder 13 to reduce the risk of the first elastic member 30 running off or falling out, thereby improving the stability of the first shell 10 relative to the second shell 20. In some embodiments, see Figure 3 , the first elastic member 30 is a spring.

[0035] In some embodiments, there are multiple guide cylinders 13, multiple guide columns 21, and multiple first elastic members 30. Each guide column 21 extends into a corresponding guide cylinder 13. A first elastic member 30 is provided in each guide cylinder 13, which helps to further enhance the stability of the movement of the first shell 10 relative to the second shell 20.

[0036] See also Figure 4 and Figure 5 , Figure 4 A schematic diagram showing a partial structure of a blood sampling device in an embodiment of the present disclosure is shown. Figure 5 A schematic diagram of a partial structure of a blood sampling device in an embodiment of the present disclosure is shown. In some embodiments, the first housing 10 is provided with a slide rail 14, and the second housing 20 is provided with a slide bar 22 that cooperates with the slide rail 14, which is conducive to achieving a sliding connection between the first housing 10 and the second housing 20.

[0037] In some embodiments, the first shell 10 is provided with a plurality of slide rails 14 , and the second shell 20 is provided with a plurality of slide bars 22 . Each slide bar 22 slidably cooperates with a corresponding slide rail 14 , which helps to further improve the stability of the movement of the first shell 10 relative to the second shell 20 .

[0038] In some embodiments, see Figure 2 The detection disk 50 is provided with a mounting groove 511 and a needle port 512 connected to the mounting groove 511, the needle port 512 passes through the detection disk 50 along the first direction X, a blood collection needle 60 is provided in the mounting groove 511, and the connecting piece 40 is connected to the blood collection needle 60 in the mounting groove 511 along the first direction X.

[0039] It can be understood that when the first housing 10 does not move relative to the second housing 20, the blood collection needle 60 is arranged in the hidden installation groove 511, so that the blood collection needle 60 does not appear from the needle opening 512. When the first housing 10 is subjected to force to move relative to the second housing 20 along the first direction X, the first housing 10 drives the connecting member 40 to move along the first direction X, and the connecting member 40 drives the blood collection needle 60 connected thereto to move along the first direction X, so that part of the blood collection needle 60 extends from the needle opening 512 to collect blood. In addition, when force is applied to the first housing 10 to move the first housing 10 relative to the second housing 20 along the first direction X, the first elastic member 30 is deformed by force, and after the force applied to the first housing 10 is canceled, the first elastic member 30 elastically drives the first housing 10 to move in the direction opposite to the first direction X, thereby driving the connecting member 40 to move in the direction opposite to the first direction X, and then allowing the blood collection needle 60 to retract from the needle opening 512 into the installation groove 511.

[0040] Taking the specific blood collection process as an example, by adopting the solution of the above embodiment of the present application, the second housing 20 can be directly pressed against the patient's blood collection part 61, and the needle port 512 can be attached to the patient's blood collection part 61, and then the first housing 10 is held and force is applied along the first direction X, so that the first housing 10 moves relative to the second housing 20 along the first direction X, so that the first housing 10 drives the connecting member 40 to move along the first direction X, and then the connecting member 40 drives the blood collection needle 60 to extend from the needle port 512 to the mounting groove 511 of the detection disk 50 along the first direction X, so that the blood collection needle 60 pierces the patient's skin for blood collection. After the blood collection personnel maintains the force for a certain period of time and cancels the force, the first elastic member 30 drives the first housing 10 to move in the opposite direction of the first direction X, thereby driving the connecting member 40 to move in the opposite direction of the first direction X, and then driving the blood collection needle 60 to retract from the needle port 512 into the mounting groove 511. This blood collection method is different from the traditional blood collection method in that it has high requirements on the penetration force and angle of the blood collection needle 60, reduces the difficulty of blood collection, and reduces the dependence on the proficiency of the blood collection personnel, thereby improving the efficiency of blood collection and realizing convenient blood collection.

[0041] See also Figure 2 In some embodiments, there are multiple mounting grooves 511, each mounting groove 511 is connected to a needle port 512, and each mounting groove 511 is provided with a blood collection needle 60. The connecting piece 40 can switchably correspond to one of the multiple mounting grooves 511, so that the blood collection needle 60 in the mounting groove 511 corresponding to the connecting piece 40 is connected to the connecting piece 40.

[0042] In this arrangement, when the blood collection needle 60 in one installation slot 511 has finished collecting blood, it can be conveniently switched to the blood collection needle 60 in another installation slot 511 for blood collection. It can be understood that when blood collection is required for multiple people or multiple blood collections are required, it can be completed by directly switching different installation slots 511 to correspond to the connector 40, so that the blood collection needle 60 does not need to be taken out and replaced with a new one every time after blood collection, which improves the convenience and application range of the blood collection device 100.

[0043] In some embodiments, see Figure 2 , a plurality of mounting grooves 511 are arranged at intervals along the circumference of the detection disk 50, the detection disk 50 is rotatably connected to the second housing 20, and the detection disk 50 can rotate relative to the second housing 20, so that one mounting groove 511 among the plurality of mounting grooves 511 corresponds to the connector 40, so that the blood collection needle 60 in the mounting groove 511 corresponding to the connector 40 is connected to the connector 40. Such an arrangement can realize that the connector 40 switchably corresponds to different mounting grooves 511 by rotating the detection disk 50, so that the connector 40 can switchably connect to different blood collection needles 60.

[0044] See also Figures 1 to 3 In some embodiments, the detection disk 50 includes a first disk 51 and a second disk 52. The first disk 51 is rotatably connected to the second housing 20, and the first disk 51 is provided with a plurality of mounting grooves 511 and a plurality of needle holes 512. The plurality of mounting grooves 511 are arranged at intervals along the circumference of the first disk 51, and each mounting groove 511 extends along the radial direction of the first disk 51 and is connected to a corresponding needle hole 512. The second disk 52 is connected to the first disk 51 along the axial direction of the first disk 51, and the second disk 52 covers the plurality of mounting grooves 511.

[0045] It can be understood that the mounting groove 511 can be a groove that is open toward the second plate 52, or it can be a groove that is closed toward the second plate 52. When the mounting groove 511 is open toward the second plate 52, it is convenient to install the blood collection needle into the mounting groove 511. At this time, the second plate 52 covers multiple mounting grooves 511, which is convenient for limiting the movement of the blood collection needle 60 and reducing the risk of the blood collection needle 60 falling out of the mounting groove 511.

[0046] See also Figure 2 , Figure 3 as well as Figure 6 , Figure 6A side view of a partial structure of a blood sampling device in an embodiment of the present disclosure is shown. In some embodiments, along the second direction Y, a plurality of protrusions 513 are provided on the side of the first disk 51 away from the second disk 52, and the plurality of protrusions 513 correspond one-to-one to the plurality of mounting grooves 511, and the second direction Y is perpendicular to the first direction X, and the second direction Y is parallel to the axial direction of the first disk 51. The detection disk 50 also includes a bottom plate 53, which is disposed between the first disk 51 and the second shell 20, and a plurality of recesses 531 are provided on the bottom plate 53, and the plurality of recesses 531 correspond one-to-one to the plurality of protrusions 513, and each protrusion 513 can be switched from one recess 531 to another recess 531 by the rotation of the first disk 51.

[0047] It can be understood that, by making one of the multiple recesses 531 correspond to the connecting member 40, when the blood collection needle 60 in a blood collection slot (numbered A) completes blood collection, the first disk 51 can be rotated clockwise or counterclockwise to allow the convex portion 513 corresponding to the blood collection slot (numbered A) to withdraw from the recess 531 corresponding to the connecting member 40, and the blood collection needle 60 in the blood collection slot (numbered A) is also detached from the connecting member 40; then continue to rotate the first disk 51 along the rotation direction until the next blood collection slot (numbered B) corresponds to the connecting member 40, so that the blood collection needle 60 in the blood collection slot (numbered B) is connected to the connecting member 40, and the convex portion 513 corresponding to the blood collection slot (numbered B) enters the recess 531 corresponding to the connecting member 40. The concave portion 531 and the convex portion 513 in this solution not only play the role of positioning the first disk 51, but also play the role of prompting the first disk 51 to rotate into place. Through the cooperation of the concave portion 531 and the convex portion 513, the switching of the blood collection needle 60 can be achieved more accurately.

[0048] See also Figure 6 In some embodiments, a receiving groove 514 is provided on the side of the first disk 51 along the second direction Y, and at least a portion of the protrusion 513 is provided in the receiving groove 514. The second direction Y is perpendicular to the first direction X and parallel to the axial direction of the first disk 51. The detection disk 50 further includes a second elastic member 54, which is provided in the receiving groove 514. The second elastic member 54 is elastically connected to the protrusion 513 and is used to drive at least a portion of the protrusion 513 to extend into the recess 531.

[0049] In this embodiment, when the first disk 51 is rotated so that the convex portion 513 is not aligned with any of the concave portions 531, the convex portion 513 squeezes the second elastic member 54 to deform the second elastic member 54. When the first disk 51 is rotated so that the convex portion 513 is aligned with a concave portion 531, the second elastic member 54 drives the convex portion 513 to move so that at least part of the convex portion 513 extends into the aligned concave portion 531. This arrangement allows the first disk 51 and the bottom plate 53 to be installed in a close fit on the one hand, and on the other hand, the first disk 51 and the bottom plate 53 do not need to move relative to each other along the second direction Y or in a direction opposite to the second direction Y, thereby simplifying the structure and making the structure more compact, and making the blood collection device 100 more stable in use.

[0050] In some embodiments, the second elastic member 54 is a spring, and the second elastic member 54 is disposed in the receiving groove 514 . One end of the spring is connected to the first plate 51 , and the other end of the spring is connected to the protrusion 513 .

[0051] In some embodiments, the recess 531 is provided with a slope, and the slopes in the plurality of recesses 531 extend in a clockwise or counterclockwise direction.

[0052] Taking the slope of the concave portion 531 extending from deep to shallow in the counterclockwise direction as an example, when the first plate 51 rotates counterclockwise, the convex portion 513 can exit the concave portion 531 along the slope, and when the convex portion 513 falls into the next concave portion 531, it can still rotate counterclockwise and smoothly move out of the concave portion 531, but if it rotates clockwise, there will be a greater obstacle and it will be difficult to move out of the concave portion 531. The blood sampling personnel can use this feature to apply force clockwise after sensing that the convex portion 513 falls into the next concave portion 531, so that the convex portion 513 and the concave portion 531 fit tightly, and can also determine that the installation groove 511 and the connecting member 40 are aligned.

[0053] See also Figure 7 , Figure 7 A side view of a partial structure of a blood collection device in an embodiment of the present disclosure is shown. In some embodiments, the connecting member 40 is provided with a connecting protrusion 41 in the opposite direction of the second direction Y, the second direction Y is perpendicular to the first direction X and parallel to the axial direction of the first disk 51, and each blood collection needle 60 includes a blood collection portion 61 and a connecting portion 62. The blood collection portion 61 is used for blood collection; the connecting portion 62 is connected to the blood collection portion 61, and the connecting portion 62 is provided with a connecting hole 621 in the opposite direction of the second direction Y, and the connecting protrusion 41 extends into the connecting hole 621 to connect the connecting member 40 to the blood collection needle 60. Through this connection method, the connecting member 40 can drive the blood collection needle 60 to move along the first direction X and the direction opposite to the first direction X.

[0054] See also Figure 7In some embodiments, the second disk 52 is movably connected to the first disk 51, and the second disk 52 can move relative to the first disk 51 along the second direction Y or in a direction opposite to the second direction Y. The blood collection device 100 further includes a third elastic member 70, which is elastically connected to the connecting member 40 and the second housing 20. The second disk 52 is used to drive the connecting member 40 to move along the second direction Y so that the connecting protrusion 41 extends out of the connecting hole 621. The third elastic member 70 is deformed when the connecting member 40 moves along the second direction Y, and stores a force for driving the connecting member 40 to move in a direction opposite to the second direction Y.

[0055] It should be noted that after the blood collection needle 60 in one installation groove 511 has finished collecting blood, the second plate 52 can be pressed to move the second plate 52 relative to the first plate 51 along the second direction Y, and the second plate 52 also drives the connecting member 40 to move along the second direction Y, so that the connecting protrusion 41 of the connecting member 40 extends out of the connecting hole 621 of the blood collection needle 60 along the second direction Y, so that the connecting member 40 is separated from the blood collection needle 60. At this time, the first plate 51 can be rotated to make the other installation groove 511 on the first plate 51 correspond to the connecting member 40, that is, the connecting hole 621 of the blood collection needle 60 in the other installation groove 511 is aligned with the connecting protrusion 41, and after alignment, the pressing of the second plate 52 is canceled, and the third elastic member 70 drives the connecting member 40 to move in the opposite direction of the second direction Y, so that the connecting protrusion 41 extends into the corresponding connecting hole 621 along the opposite direction of the second direction Y, so that the connecting member 40 is connected to the corresponding blood collection needle 60.

[0056] In some embodiments, the second disk 52 can drive the first disk 51 to rotate when rotating.

[0057] In an embodiment in which the second disk 52 is arranged to move relative to the first disk 51 along the second direction Y and in a direction opposite to the second direction Y, when the second disk 52 needs to be pressed, the second disk 52 is arranged to drive the first disk 51 to rotate when it rotates, so that when the second disk 52 is pressed, the first disk 51 can be driven to rotate by rotating the second disk 52, thereby simplifying the operation of the blood collection device 100.

[0058] In some embodiments, see Figure 1 and Figure 6 , and along the second direction Y, a force block 521 is provided on the side of the second plate 52 away from the first plate 51, which is convenient for blood drawing personnel to hold and apply force.

[0059] In some embodiments, see Figure 7The blood collection device 100 further includes a push plate 80, which is connected to the connecting member 40. The push plate 80 can move relative to the second housing 20 along the second direction Y, or move in a direction opposite to the second direction Y. The push plate 80 is also connected to the third elastic member 70. The connecting member 40 is connected to the third elastic member 70 through the push plate 80, which increases the connection area with the third elastic member 70, which is beneficial to improving the stability of the operation of the blood collection device 100.

[0060] In some embodiments, the third elastic member 70 is a spring. In some embodiments, the third elastic member 70 can be one or more, which is not specifically limited here.

[0061] See also Figures 8 to 10 , Figure 8 A side view of a partial structure of a blood sampling device in an embodiment of the present disclosure is shown. Fig. 9 A schematic diagram showing a connecting protrusion and a connecting hole of a blood sampling device in an embodiment of the present disclosure is shown. Fig.10 A side view of a partial structure of a blood collection device in an embodiment of the present disclosure is shown. In some embodiments, each blood collection needle 60 includes a blood collection portion 61 and a connecting portion 62, the blood collection portion 61 is used for blood collection; the connecting portion 62 is connected to the blood collection portion 61, and the connecting portion 62 is provided with a connecting hole 621 along the second direction Y. Among them, the connecting member 40 is provided with a connecting protrusion 41 along the second direction Y, and the connecting protrusion 41 extends into the connecting hole 621. The connecting protrusion 41 has a guide surface 411 and a stop surface 412 arranged oppositely along the third direction Z. The guide surface 411 is used to abut against the blood collection needle 60 when the detection disk 50 rotates, so that the connecting protrusion 41 withdraws from the connecting hole 621 of one blood collection needle 60 and extends into the connecting hole 621 of another blood collection needle 60. Among them, the third direction Z is perpendicular to the first direction X and the second direction Y, and the second direction Y is parallel to the axial direction of the first disk 51. Such an arrangement allows the connector 40 to be switchably connected to the blood collection needles 60 in different installation slots 511 by directly rotating the first disk 51, further simplifying the operation of the blood collection device 100 and improving the user experience of the blood collection device 100.

[0062] See also Figure 8 and Fig.10 In some embodiments, each mounting groove 511 is provided with a test paper 55 and a fourth elastic member 56, the elastic member is connected to the test disk 50, and along the second direction Y, the blood collection needle 60 is located between the fourth elastic member 56 and the test paper 55, and the fourth elastic member 56 is used to drive the blood collection needle 60 to fit the test paper 55. The second direction Y is perpendicular to the first direction X and parallel to the axial direction of the test disk 50.

[0063] It is understandable that after operating the blood collection device 100 to allow the blood collection needle 60 to extend and pierce the patient's skin and carry the patient's blood, the blood collection needle 60 retracts into the mounting groove 511. At this time, the fourth elastic member 56 drives the blood collection needle 60 to fit with the test paper 55, and the blood carried on the blood collection needle 60 reacts with the test paper 55, causing the color of the test paper 55 to change, thereby completing the blood test. The above embodiment allows the blood collection device 100 to achieve the functions of blood collection and testing, and there is no need to remove the blood collection needle 60 after blood collection for testing, which simplifies the testing process and improves the testing efficiency.

[0064] It should be noted that this embodiment, combined with the above-mentioned embodiment with multiple installation slots 511, enables the blood collection device 100 to realize the functions of blood collection, testing, and needle replacement at the same time, which greatly improves the convenience of use, improves the diagnostic efficiency of medical personnel, and also improves the user experience of patients.

[0065] It can be understood that needle replacement is a process of allowing the connecting member 40 to switchably connect to different blood collection needles 60 .

[0066] In some embodiments, see Figure 8 and Fig.10 The fourth elastic member 56 is a metal spring sheet, which is arranged in an arc shape. Both ends of the fourth elastic member 56 are fixed to the bottom of the installation groove 511.

[0067] In some embodiments where the first tray 51 and the second tray 52 are provided, the test strip 55 is installed on the second tray 52. ​​In other embodiments, the test strip 55 is provided on the first tray 51.

[0068] In some embodiments, the second tray 52 is further provided with a transparent window 522 corresponding to the position of each test strip 55, and the blood collection personnel or the patient can observe the changes of the test strip through the transparent window 522, thereby facilitating the blood collection personnel or the patient to understand the test results in a timely manner.

[0069] See also Figure 8 and Fig.10In some embodiments, along the second direction Y, the blood collection needle 60 is provided with a positioning portion 64 toward the fourth elastic member 56, and the fourth elastic member 56 includes a fixing portion 561 and an acting portion 562, wherein the fixing portion 561 is connected to the detection disk 50; the acting portion 562 is connected to the fixing portion 561, and the acting portion 562 and the blood collection needle 60 are elastically abutted. Along the second direction Y, the acting portion 562 is provided with a matching portion 5621 toward the blood collection needle 60, and the positioning portion 64 is engaged with the matching portion 5621. Such a configuration is conducive to reducing the risk of the blood collection needle 60 moving and misaligning in the case of undesired movement. For example, when the needle needs to be changed, that is, when the connecting member 40 is switchably connected to different blood collection needles 60, the locking of the positioning portion 64 and the matching portion 5621 is conducive to limiting the movement of the blood collection needle 60, facilitating the smooth connection between the connecting member 40 and the blood collection needle 60, and improving the smoothness of the needle change.

[0070] In some embodiments, the positioning portion 64 is a relatively small protrusion, and the matching portion 5621 is a relatively shallow groove. The positioning portion 64 and the matching portion 5621 are engaged with each other, that is, the protrusion and the groove are engaged with each other. Such a configuration can not only play a certain positioning role, but also enable the connecting member 40 to drive the blood collection needle 60 to move along the first direction X and the direction opposite to the first direction X. When the connecting member 40 drives the blood collection needle 60 to move, the protrusion can be forcibly withdrawn from the groove.

[0071] It is understood that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] It is understood that in this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0073] It is understood that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0074] It is understandable that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article indicates that the associated objects before and after are in an "or" relationship.

[0075] It can be understood that the above describes multiple embodiment schemes provided by the embodiments of the present disclosure, and the various optional methods introduced in each embodiment scheme can be combined and cross-referenced with each other without conflict, thereby extending a variety of possible embodiment schemes, which can all be considered as embodiment schemes disclosed and disclosed by the present disclosure.

[0076] Although the embodiments of the present disclosure are disclosed as above, the present disclosure is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the scope defined by the claims.

Claims

1. A blood sampling device, characterized in that: include: A first shell is provided with a receiving cavity and an opening communicating with the receiving cavity; A second shell is inserted into the opening and is slidably connected to the first shell, and the first shell can slide relative to the second shell in a first direction and a direction opposite to the first direction, so that a portion of the second shell extends into or out of the accommodating cavity; a first elastic member elastically connecting the first shell and the second shell, and when the first shell moves in a first direction relative to the second shell, the first elastic member elastically deforms to store a force driving the first shell to move in a direction opposite to the first direction; A connecting member connected to the first shell; The detection disk is installed on the second shell, and the detection disk is provided with a mounting groove and a needle port connected to the mounting groove, the needle port passes through the detection disk along the first direction, a blood collection needle is provided in the mounting groove, and the connecting piece is connected to the blood collection needle in the mounting groove along the first direction.

2. The blood collection device according to claim 1, characterized in that: There are multiple installation grooves, which are arranged at intervals along the circumference of the detection plate, and each installation groove is provided with the blood collection needle; The detection disk is rotatably connected to the second shell, and the detection disk can rotate relative to the second shell so that one of the plurality of mounting grooves corresponds to and is connected to the connecting member.

3. The blood collection device according to claim 2, characterized in that: The detection disk comprises: A first disk is rotatably connected to the second shell, the first disk is provided with a plurality of the mounting grooves and a plurality of the needle holes, the plurality of the mounting grooves are arranged at intervals along the circumference of the first disk, each of the mounting grooves extends along the radial direction of the first disk and is connected to a corresponding needle hole; The second disk is connected to the first disk along the axial direction of the first disk, and the second disk covers the plurality of mounting grooves.

4. The blood collection device according to claim 3, characterized in that: Along the second direction, a side of the first disk facing away from the second disk is provided with a plurality of protrusions, the plurality of protrusions correspond to the plurality of mounting grooves one by one, and the second direction is perpendicular to the first direction and parallel to the axial direction of the first disk; The detection disk also includes: A bottom plate is arranged between the first disk and the second shell, and a plurality of recesses are arranged on the bottom plate, and the plurality of recesses correspond to the plurality of protrusions one by one, and each protrusion can be switched from one recess to another by the rotation of the first disk.

5. The blood collection device according to claim 4, characterized in that: A receiving groove is provided on the side of the first plate along the second direction, and at least a part of the protrusion is provided in the receiving groove; The detection disk also includes: The second elastic member is arranged in the receiving groove, the second elastic member is elastically connected to the protrusion, and is used to drive at least a part of the protrusion to extend into the concave part.

6. The blood collection device according to claim 4, characterized in that: The connecting member is provided with a connecting protrusion in the opposite direction of the second direction, and each of the blood collection needles comprises: The blood collection department is used for blood collection; The connecting part is connected to the blood collection part, and the connecting part is provided with a connecting hole along the direction opposite to the second direction, and the connecting protrusion extends into the connecting hole so that the connecting member is connected to the blood collection needle.

7. The blood collection device according to claim 6, characterized in that: The second disk is movably connected to the first disk, and the second disk can move relative to the first disk along the second direction or in a direction opposite to the second direction; The blood sampling device also includes: a third elastic member, elastically connected to the connecting member and the second shell; Wherein, the second disk is used to drive the connecting member to move along the second direction so that the connecting protrusion extends out of the connecting hole, and the third elastic member is deformed when the connecting member moves along the second direction and stores a force for driving the connecting member to move in the opposite direction of the second direction.

8. The blood collection device according to claim 4, characterized in that: Each of the blood collection needles comprises: The blood collection department is used for blood collection; A connecting portion connected to the blood collection portion, wherein the connecting portion is provided with a connecting hole along the second direction; Wherein, the connecting member is provided with a connecting protrusion along the second direction, the connecting protrusion extends into the connecting hole, the connecting protrusion has a guide surface and a stop surface arranged opposite to each other along the third direction, the guide surface is used to abut against the blood collection needle when the detection disk rotates, so that the connecting protrusion withdraws from the connecting hole of one blood collection needle and extends into the connecting hole of another blood collection needle; The third direction is perpendicular to the first direction and the second direction, and the second direction is parallel to the axial direction of the first disk.

9. The blood collection device according to any one of claims 2 to 8, characterized in that: A test strip and a fourth elastic member are provided in each of the installation slots. The fourth elastic member is connected to the detection plate. Along the second direction, the blood collection needle is located between the fourth elastic member and the test strip. The fourth elastic member is used to drive the blood collection needle to fit the test strip. The second direction is perpendicular to the first direction and parallel to the axial direction of the detection disk.

10. The blood collection device according to claim 9, characterized in that: Along the second direction, the blood collection needle is provided with a positioning portion toward the fourth elastic member, and the fourth elastic member includes: A fixing part connected to the detection disk; The action part is connected to the fixing part, the action part is in elastic contact with the blood collection needle, and along the opposite direction of the second direction, the action part is provided with a matching part toward the blood collection needle, and the positioning part is engaged with the matching part.

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