Blood sampling auxiliary device

Abstract

The invention relates to the technical field of medical instruments, in particular to a blood sampling auxiliary device which comprises a base, a pulse pressing sleeve for passing through an arm and performing systolic pulse pressing during blood sampling, blood sampling tubes for storing blood samples, a mounting frame for positioning and placing the blood sampling tubes and a blood sampling needle tube connected with the multiple blood sampling tubes at the same time. The pulse pressing sleeve comprises a fixing ring used for fixing and supporting and an adjusting ring capable of conducting necking adjustment, the adjusting ring is matched with the inner wall of the fixing ring to conduct necking adjustment when moving leftwards in the fixing ring, and the front side and the rear side of the fixing ring are each provided with an adjusting screw rod used for conducting left-right adjustment on the adjusting ring. An adjusting ring is adjusted in the left-right direction by screwing an adjusting screw rod, at the moment, the adjusting ring is matched with the inner side wall of a fixing ring to contract an inner hole, and therefore the pulse pressing sleeve can be adjusted according to the thickness of the arm of a patient, and the requirements for arm tightening during blood sampling of different patients are better met; and therefore, the actual blood sampling use requirements can be better met.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a blood sampling auxiliary device. Background Art

[0002] When conducting a physical examination on a patient, it is necessary to draw blood from the patient, and the collected blood sample is tested to obtain the patient's physical health information. When collecting blood samples, medical staff need to puncture a blood collection needle into a blood vessel, and then insert the other end of the blood collection needle into the blood collection tube to collect blood.

[0003] When drawing blood from a patient, it is necessary to use a rubber band to tie the patient's arm tightly so that the blood vessels can expand. In order to make it more convenient to tie the patient's arm, a compression cuff is put on the patient's arm and the patient's arm is tied tightly by using the expansion of the airbag. However, the inner diameter of this compression cuff is fixed and cannot be adjusted according to the thickness of the patient's arm. The adjustment range relying solely on the expansion of the airbag is limited, and cannot well meet the use needs of different patients when drawing blood.

[0004] On the other hand, when medical staff are drawing blood, they need to remove the blood collection tube after the blood collection is completed, and then insert another blood collection tube to draw blood. This method of blood collection not only has low blood collection efficiency, but also causes the needle inserted in the blood collection tube to be exposed to the air, which can easily cause contamination and injure medical staff. Summary of the invention

[0005] The present invention proposes a blood collection auxiliary device to solve the problem that the inner diameter of the blood collection cuff is fixed and cannot be adjusted according to the thickness of the patient's arm and that when replacing the blood collection tube, the needle inserted in the blood collection tube will be exposed to the air, which may easily cause pollution and injure medical staff.

[0006] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a blood sampling auxiliary device, comprising a base, a compression cuff for passing through an arm and constricting a compression pulse during blood sampling, a blood sampling tube for storing blood samples, a mounting frame for positioning and placing the blood sampling tube, and a blood sampling needle tube connected to multiple blood sampling tubes at the same time;

[0007] The cuff includes a fixed ring for fixing and supporting and an adjusting ring for shrinking adjustment. When the adjusting ring moves leftward in the fixed ring, it cooperates with the inner wall of the fixed ring to shrink and adjust. An air bag ring is installed on the inner side of the adjusting ring. The air bag ring is connected to an air pump through a pipeline. Adjusting screws for adjusting the adjusting ring left and right are installed on both the front and rear sides of the fixed ring.

[0008] The blood collection needle tube includes a puncture needle connected to a plurality of blood collection tubes one by one and a blood collection needle used for collecting blood from the punctured blood tubes, one end of the blood collection needle is fixed with a blood collection hose, the upper end of the blood collection hose is fixed with a transverse main pipeline, the end of the puncture needle away from the blood collection tube is fixed with a clamp, and the end of the puncture needle passing through the clamp is fixedly connected to the main pipeline through a branch tube;

[0009] The mounting frame is configured in a plate shape, and a plurality of placement slots for placing blood collection tubes are provided on the front side of the mounting frame, a mounting slot for positioning and mounting the puncture needle and the card block is provided on the front side of the mounting frame at a position below the placement slot, a pipeline slot for placing the branch tube is provided on the front side of the mounting frame at a position below the mounting slot, and a self-locking mechanism for elastically squeezing the branch tube in the pipeline slot is installed on the mounting frame, and the self-locking mechanism can be manually pushed to release the squeezing of the branch tube.

[0010] As a preferred solution, the upper surface of the base is located on the right side of the compression cuff and is provided with a support plate for supporting the arm passing through. A support plate for fixing the mounting frame is fixed on the upper surface of the base near the rear side, and the support plate is inclined toward the rear.

[0011] As a preferred solution, connection blocks are fixed on both the front and rear sides of the fixing ring, and the inner hole of the fixing ring is set to be conical;

[0012] The adjusting ring comprises a supporting ring arranged on the right side of the fixing ring, a plurality of shrinking plates arranged in a ring shape are fixed on the left side of the supporting ring, and adjusting blocks are fixed on both the front and rear sides of the supporting ring;

[0013] The plurality of shrinkage pieces are all inserted into the inner side of the fixing ring, and the outer side surfaces of the plurality of shrinkage pieces are all arranged as inclined surfaces matching with the inner hole wall of the fixing ring.

[0014] As a preferred solution, the adjusting screw thread passes through the adjusting block, and a rotating handle is fixed to the right end of the adjusting screw;

[0015] The left end of the adjusting screw rod is fixed with a connecting column inserted in the connecting block, and the left end of the connecting column is fixed with a circular hanging platform.

[0016] As a preferred solution, a mounting groove for mounting the self-locking mechanism is provided at the lower end of the mounting frame, and a clearance groove for movably making way for the self-locking mechanism is provided on the side of the mounting frame;

[0017] A baffle plate is fixed at the lower end of the mounting frame to block the lower side of the mounting groove, and a U-shaped groove corresponding to the pipeline groove is opened on the baffle plate;

[0018] The baffle is fixed on the mounting frame by screws, a plurality of positioning holes are opened at the lower end of the mounting frame, and positioning columns inserted in the positioning holes are fixed on the upper surface of the baffle.

[0019] As a preferred embodiment, the self-locking mechanism includes a spring installed in the installation groove and an extrusion block located on the right side of the spring, the right end of the extrusion block extends into the pipeline groove, and a push block fixedly connected to the left end of the extrusion block is provided on the inner side of the clearance groove.

[0020] As a preferred solution, a horizontal fixing plate is fixed to the lower end of the support plate, and a reinforcing plate is fixed between the support plate and the fixing plate. The support plate is provided with a mounting hole for matching with the mounting frame.

[0021] As a preferred solution, a fixing frame that can be adjusted up and down is installed on the side of the support plate, and a plurality of guide openings for adjusting and guiding the fixing frame are provided on the support plate;

[0022] The fixing frame includes a positioning plate for supporting and placing the mounting frame, a plurality of adjustment plates are fixed on the lower side of the positioning plate, and locking plates are fixed at both ends of the positioning plate, locking screws for tightening and fixing the mounting frame are threadedly installed on the locking plate, and adjusting screws passing through the guide opening are threadedly installed on the adjusting plate.

[0023] As a preferred solution, the support plate is configured to be in an arc shape, and a vertical plate is fixed to the lower left end of the support plate, and a bottom plate is fixed to the lower end of the vertical plate.

[0024] As a preferred solution, the lower end of the vertical plate is rotatably connected to the bottom plate, an electric telescopic rod is hinged on the upper surface of the bottom plate, and the upper end of the electric telescopic rod is hinged to the lower surface of the support plate.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] Firstly, the cuff of the present invention adjusts the adjustment ring in the left and right directions by screwing the adjustment screw. At this time, the adjustment ring contracts and opens the inner hole according to the cooperation with the inner side wall of the fixed ring, so that the cuff can be adjusted according to the thickness of the patient's arm, so as to better meet the arm tensioning of different patients during blood collection, thereby better meeting the actual blood collection use requirements and having good flexibility;

[0027] Secondly, the blood collection needle tube is connected to multiple blood collection tubes by a main tube, and blood is collected by a blood collection needle, and blood is sent to each blood collection tube by multiple branch tubes, so there is no need to repeatedly pull out and insert the puncture needle, thereby effectively preventing the puncture needle from being exposed to the air, which is easy to cause contamination and stab medical staff;

[0028] In addition, the multiple placement slots on the mounting frame of the present invention are used to place multiple blood collection tubes and are connected to the blood collection needle tubes at the same time. The branch tubes on the blood collection needle tubes are squeezed and disconnected under the elastic squeezing of the self-locking mechanism. When blood is collected, the corresponding self-locking mechanism is opened to send blood to the corresponding blood collection tubes. The operation is more convenient and quick, and there is no need to repeatedly pull out and plug in each blood collection tube separately. Multiple blood collection tubes can be pulled out and plugged in at the same time, and the rapid blood collection of multiple blood collection tubes can be quickly satisfied, greatly improving the efficiency of blood collection.

[0029] In addition, in the present invention, a plurality of shrinkage sheets are inserted into the inner side of the fixing ring to cooperate with the inner hole wall of the fixing ring to realize the shrinkage and opening of the inner hole;

[0030] In addition, the baffle at the lower end of the mounting frame in the present invention is used to block the mounting groove to prevent the self-locking mechanism from falling out, so that the disassembly and installation of the self-locking mechanism is convenient when the baffle is disassembled;

[0031] In addition, the vertical adjustment of the fixing frame in the present invention can adjust the height of the mounting frame, so that the height can be adjusted according to the actual needs of the user, better meeting the actual use needs;

[0032] The fixing frame uses the positioning plate to support and place the mounting frame. At this time, the locking screws on the locking plates on both sides are used to tighten and fix the mounting frame, thereby facilitating the installation and removal of the mounting frame.

[0033] Finally, the support plate in the present invention utilizes the rotational connection between the vertical plate and the bottom plate so that the angle of the support plate can be adjusted, thereby better meeting the adjustment requirements of the arm placement of different patients, thereby obtaining a better blood collection state and facilitating the blood collection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 is a schematic diagram of a compression cuff of the present invention;

[0036] Figure 3 is a schematic diagram of a blood collection needle tube of the present invention;

[0037] Figure 4 is a schematic diagram of the mounting frame of the present invention;

[0038] Figure 5 is a schematic diagram of a fixing ring of the present invention;

[0039] Figure 6 It is a schematic diagram of the structure of the adjustment ring of the present invention;

[0040] Figure 7 It is a schematic diagram of the structure of the adjusting screw of the present invention;

[0041] Figure 8 is a schematic diagram of the internal structure of the mounting frame of the present invention;

[0042] Fig. 9 It is a partial enlarged view of A of the present invention;

[0043] Fig.10 is a schematic diagram of a first embodiment of a support plate of the present invention;

[0044] Fig.11 is a schematic diagram of a second embodiment of a support plate of the present invention;

[0045] Fig.12 is a schematic diagram of a fixing frame of the present invention;

[0046] Fig.13 is a schematic diagram of a first embodiment of a support plate of the present invention;

[0047] Fig.14 Schematic diagram of a second embodiment of a support plate of the present invention.

[0048] In the figure: 1, base; 2, cuff; 21, fixing ring; 211, connecting block; 22, adjusting screw; 221, round hanging platform; 222, connecting column; 223, turning handle; 23, adjusting ring; 231, contraction sheet; 232, supporting ring; 233, adjusting block; 24, airbag ring; 3, supporting plate; 31, vertical plate; 32, bottom plate; 33, electric telescopic rod; 4, supporting plate; 41, mounting hole; 42, reinforcing plate; 43, fixing plate; 5, mounting frame; 51, card slot; 52, placement slot; 5 3. Self-locking mechanism; 531. Push block; 532. Spring; 533. Extrusion block; 54. Pipeline groove; 55. Baffle; 56. Positioning hole; 57. U-shaped groove; 58. Give way groove; 59. Installation groove; 6. Blood collection tube; 7. Blood collection needle tube; 71. Puncture needle; 72. Block; 73. Branch tube; 74. Main pipeline; 75. Blood collection hose; 76. Blood collection needle; 8. Fixing frame; 81. Locking plate; 82. Adjusting plate; 83. Positioning plate; 84. Adjusting screw; 85. Locking screw; 9. Guide opening. DETAILED DESCRIPTION

[0049] Embodiment 1,

[0050] like Figure 1 As shown, a blood collection auxiliary device includes a base 1, a compression cuff 2 for passing through the arm and constricting the blood pulse during blood collection, a blood collection tube 6 for storing blood samples, a mounting frame 5 for positioning and placing the blood collection tube 6, and a blood collection needle tube 7 connected to multiple blood collection tubes 6 at the same time. When blood is collected, the patient's arm passes through the compression cuff 2 and is tightened. At this time, blood is collected through the blood collection needle tube 7 and transported to the blood collection tube 6 for storage.

[0051] like Figure 2 As shown, the cuff 2 includes a fixed ring 21 for fixed support and an adjusting ring 23 for shrinking adjustment. When the adjusting ring 23 moves leftward in the fixed ring 21, it cooperates with the inner wall of the fixed ring 21 to shrink and adjust. Adjusting screws 22 for adjusting the adjusting ring 23 left and right are installed on the front and rear sides of the fixed ring 21. The adjusting ring 23 is adjusted left and right by screwing the adjusting screw 22. At this time, the adjusting ring 23 shrinks and opens the inner hole according to the cooperation with the inner side wall of the fixed ring 21, so that the cuff 2 can be adjusted according to the thickness of the patient's arm, so as to better meet the arm tension of different patients during blood collection, so as to better meet the actual blood collection use needs, and has good flexibility;

[0052] An airbag ring 24 is installed on the inner side of the adjusting ring 23, and the airbag ring 24 is connected to an air pump through a pipeline. When the airbag ring 24 tightens the patient's arm, the airbag ring 24 is expanded by pumping air with the air pump. The expanded airbag ring 24 tightens the patient's arm, thereby filling and squeezing the gap between the arm and the adjusting ring 23.

[0053] like Figure 3 As shown, the blood collection needle tube 7 includes a puncture needle 71 connected to multiple blood collection tubes 6 one by one and a blood collection needle 76 for collecting blood from the punctured blood tubes. A blood collection hose 75 is fixed to one end of the blood collection needle 76, and a transverse main pipeline 74 is fixed to the upper end of the blood collection hose 75. A clamping block 72 is fixed to the end of the puncture needle 71 away from the blood collection tube 6, and the end of the puncture needle 71 passing through the clamping block 72 is fixedly connected to the main pipeline 74 through a branch tube 73. The blood collection needle tube 7 is connected to the multiple blood collection tubes 6 by the main pipeline 74, and blood is collected by the blood collection needle 76, and the blood is delivered to each blood collection tube 6 by multiple branch tubes 73, so there is no need to repeatedly pull out and insert the puncture needle 71, thereby effectively avoiding the puncture needle 71 from being exposed to the air, which is easy to cause pollution and injure medical staff.

[0054] like Figure 4As shown, the mounting frame 5 is configured in a plate shape, and a plurality of placement slots 52 for placing blood collection tubes 6 are provided on the front side of the mounting frame 5, a clamping slot 51 for positioning and clamping the puncture needle 71 and the clamping block 72 is provided on the front side of the mounting frame 5 at a position below the placement slot 52, a pipeline slot 54 for placing the branch tube 73 is provided on the front side of the mounting frame 5 at a position below the clamping slot 51, and a self-locking mechanism 53 for elastically squeezing the branch tube 73 in the pipeline slot 54 is installed on the mounting frame 5, and the self-locking mechanism 53 can be manually pushed to release the squeezing of the branch tube 73 The plurality of blood collection tubes 6 are placed through the plurality of placement slots 52 on the mounting frame 5, and are connected to the blood collection needle tube 7 at the same time, and the branch tube 73 on the blood collection needle tube 7 is squeezed and disconnected under the elastic squeezing of the self-locking mechanism 53, and the corresponding self-locking mechanism 53 is opened when blood is collected, so that the blood is sent to the corresponding blood collection tube 6. The operation is more convenient and quick, and there is no need to repeatedly pull out and plug in each blood collection tube 6 separately. The plurality of blood collection tubes 6 can be pulled out and plugged in at the same time, and the rapid blood collection of a plurality of blood collection tubes 6 can be quickly satisfied, thereby greatly improving the efficiency of blood collection.

[0055] like Figure 1 As shown, the upper surface of the base 1 is located on the right side of the cuff 2 and is provided with a support plate 3 for supporting and placing the arm passing through. The support plate 3 is used to support and place the arm when passing through the cuff 2, so that the patient's arm can be fully relaxed, which is more conducive to blood collection;

[0056] A support plate 4 for fixing and supporting the mounting frame 5 is fixed on the upper surface of the base 1 near the rear side. The support plate 4 is inclined toward the rear side. The support plate 4 is used to support the mounting frame 5, and the inclined support plate 4 is more conducive to the placement and removal of the blood collection tube 6 by the mounting frame 5.

[0057] like Figure 5 As shown, connecting blocks 211 are fixed on both the front and rear sides of the fixing ring 21 for rotational installation in conjunction with the adjusting screw 22; the inner hole of the fixing ring 21 is set to be conical, and the conical inner hole of the fixing ring 21 allows the adjusting ring 23 to contract and expand when moving inside.

[0058] like Figure 6 As shown, the adjustment ring 23 includes a support ring 232 arranged on the right side of the fixed ring 21, and a plurality of shrinking sheets 231 arranged in an annular shape are fixed on the left side of the support ring 232. The support ring 232 shrinks and opens the inner hole by deformation of the plurality of shrinking sheets 231; adjustment blocks 233 are fixed on both the front and rear sides of the support ring 232 for cooperating with the adjustment screw 22 for movement and adjustment;

[0059] Multiple shrinkage sheets 231 are inserted on the inner side of the fixing ring 21, and the outer side surfaces of the multiple shrinkage sheets 231 are all set as inclined surfaces that cooperate with the inner hole wall of the fixing ring 21. Multiple shrinkage sheets 231 are inserted on the inner side of the fixing ring 21 for cooperation with the inner hole wall of the fixing ring, and the inclined surfaces set on the outer sides of the shrinkage sheets 231 can better cooperate with the conical structure of the inner hole of the fixing ring 21.

[0060] like Figure 7 As shown, the adjusting screw 22 thread penetrates the adjusting block 233, and a rotating handle 223 is fixed to the right end of the adjusting screw 22. When the adjusting ring 23 is moved, the adjusting screw 22 is driven to rotate by rotating the rotating handle 223, and the rotating adjusting screw 22 drives the adjusting block 233 to move, thereby driving the movement of the adjusting ring 23;

[0061] The left end of the adjusting screw 22 is fixed with a connecting column 222 inserted in the connecting block 211, and the left end of the connecting column 222 is fixed with a circular hanging platform 221. The adjusting screw 22 is inserted in the connecting block 211 using the connecting column 222 and is hung using the circular hanging platform 221, so that the adjusting screw 22 can be rotated.

[0062] like Fig. 9 As shown, a mounting groove 59 for mounting the self-locking mechanism 53 is provided at the lower end of the mounting frame 5, and the mounting groove 59 is used for mounting the self-locking mechanism 53 and guiding it during self-locking and self-releasing activities; a yielding groove 58 for yielding the self-locking mechanism 53 is provided on the side of the mounting frame 5, and the yielding groove 58 is used for yielding the self-locking mechanism 53 during self-locking and self-releasing activities;

[0063] like Figure 8 As shown, a baffle 55 is fixed at the lower end of the mounting frame 5 to block the lower side of the mounting groove 59. The baffle 55 is used to block the mounting groove 59 to prevent the self-locking mechanism 53 from falling out, so that the disassembly and installation of the self-locking mechanism 53 is convenient when the baffle 55 is disassembled;

[0064] The baffle plate 55 is provided with a U-shaped groove 57 corresponding to the pipeline groove 54, and the U-shaped groove 57 is used to make way for the branch pipe 73 when it is inserted;

[0065] The baffle 55 is fixed to the mounting frame 5 by screws. A plurality of positioning holes 56 are provided at the lower end of the mounting frame 5. Positioning columns inserted into the positioning holes 56 are fixed to the upper surface of the baffle 55. The baffle 55 is inserted into the positioning holes 56 for positioning installation using the positioning columns and fixed with screws.

[0066] like Fig. 9As shown, the self-locking mechanism 53 includes a spring 532 installed in the installation groove 59 and an extrusion block 533 located on the right side of the spring 532. The right end of the extrusion block 533 extends into the pipeline groove 54. The spring 532 elastically presses the extrusion block 533. The extrusion block 533 squeezes and disconnects the branch pipe 73 in the pipeline groove 54, and the installation groove 59 guides the extrusion block 533.

[0067] A push block 531 fixedly connected to the left end of the extrusion block 533 is provided on the inner side of the clearance groove 58 . By pushing the push block 531 , the extrusion block 533 is driven to move away from the pipeline groove 54 , thereby releasing the extrusion of the branch pipe 73 .

[0068] like Fig.10 As shown, a horizontal fixing plate 43 is fixed to the lower end of the support plate 4, and a reinforcing plate 42 is fixed between the support plate 4 and the fixing plate 43. A mounting hole 41 for matching the mounting frame 5 is opened on the support plate 4. The support plate 4 is fixed to the base 1 using the fixing plate 43 and screws, and the mounting frame 5 is fixedly installed by inserting screws through the mounting hole 41.

[0069] like Fig.13 As shown, the support plate 3 is set to be arc-shaped for better use of the arm placement; a vertical plate 31 is fixed to the lower left end of the support plate 3, and a bottom plate 32 is fixed to the lower end of the vertical plate 31. The vertical plate 31 and the bottom plate 32 fix and support the support plate 3, and the bottom plate 32 is fixed to the base 1 with screws.

[0070] Embodiment 2: The device provided in the embodiment of the present invention has the same implementation principle and technical effects as those of Embodiment 1. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in Embodiment 1.

[0071] like Fig.11 and Fig.12 As shown, a fixing frame 8 that can be adjusted up and down is installed on the side of the support plate 4. The setting of the fixing frame 8 realizes the clamping and fixing of the mounting frame 5, thereby realizing the detachable installation of the mounting frame 5, and the up and down adjustment of the fixing frame 8 realizes the adjustment of the height of the mounting frame 5, so that the height can be adjusted according to the actual needs of the user, better meeting the actual use needs;

[0072] The support plate 4 is provided with a plurality of guide openings 9 for adjusting and guiding the fixing frame 8, and the guide openings 9 provided on the support plate 4 realize the upward and downward adjustment and guidance of the fixing frame 8;

[0073] The fixing frame 8 includes a positioning plate 83 for supporting and placing the mounting frame 5, and locking plates 81 are fixed at both ends of the positioning plate 83, and locking screws 85 for tightening and fixing the mounting frame 5 are threadedly installed on the locking plate 81. The positioning plate 83 supports and places the mounting frame 5. At this time, the locking screws 85 on the locking plates 81 on both sides are used to tighten and fix the mounting frame 5, thereby facilitating the installation and disassembly of the mounting frame 5.

[0074] A plurality of adjustment plates 82 are fixed to the lower side of the positioning plate 83, and an adjustment screw 84 is threadedly installed on the adjustment plate 82 and passes through the guide opening 9. When adjusting the height of the mounting frame 5, the adjustment screw 84 is loosened to adjust the height of the positioning plate 83. After the height adjustment of the positioning plate 83 is completed, the adjustment screw 84 is screwed again to lock and fix it, thereby completing the adjustment of the height of the mounting frame 5.

[0075] Embodiment 2: The device provided in the embodiment of the present invention has the same implementation principle and technical effects as those of Embodiment 1. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in Embodiment 1.

[0076] like Fig.13 and Fig.14 As shown, the support plate 3 is set to an arc shape for better use of the arm placement; a vertical plate 31 is fixed to the lower left end of the support plate 3, and a bottom plate 32 is fixed to the lower end of the vertical plate 31. The vertical plate 31 and the bottom plate 32 fix and support the support plate 3, and the bottom plate 32 is fixed to the base 1 by screws. The lower end of the vertical plate 31 is rotatably connected to the bottom plate 32. The support plate 3 uses the rotation connection between the vertical plate 31 and the bottom plate 32 to adjust the angle of the support plate 3, so as to better meet the adjustment of the arm placement of different patients, thereby obtaining a better blood collection state, which is conducive to the blood collection operation;

[0077] An electric telescopic rod 33 is hinged on the upper surface of the bottom plate 32, and the upper end of the electric telescopic rod 33 is hinged to the lower surface of the support plate 3. The extension and retraction of the electric telescopic rod 33 drives the support plate 3 to adjust the angle, making the angle adjustment of the support plate 3 more convenient.

[0078] In this embodiment, when blood is collected from a patient, the blood collection needle tube 7 is installed on the mounting frame 5, and then the branch tube 73 on the blood collection needle tube 7 is squeezed and disconnected by the self-locking mechanism 53. At this time, a corresponding number of blood collection tubes 6 are placed in the placement groove 52 of the mounting frame 5 according to the need for blood collection and pressed down to connect with the puncture needle 71 on the blood collection needle tube 7. Then the patient passes his arm through the cuff 2 and puts it on the supporting plate 3. At this time, the air bag ring 24 in the cuff 2 is expanded to tighten it. The medical staff can puncture the patient's arm with the blood collection needle 76, and then push the self-locking mechanism 53 one by one to open the corresponding branch tubes 73 so that the blood sample enters the blood collection tube 6, thereby completing the blood collection operation;

[0079] When the patient's arm passes through the cuff 2, according to the thickness of the patient's arm, the handle 223 is rotated to drive the adjusting screw 22 to rotate, and the rotating adjusting screw 22 drives the adjusting block 233 to move, thereby driving the movement of the adjusting ring 23, and the contraction piece 231 on the movable adjusting ring 23 is contracted and opened according to the change of the contact position with the inner hole wall of the fixed ring 21, thereby completing the adjustment of the inner hole size of the adjusting ring 23 to better match the thickness of the patient's arm, and then the air bag ring 24 is opened to tighten, thereby completing the size adjustment of the inner hole of the cuff 2;

[0080] When the blood collection needle tube 7 is installed on the mounting frame 5, the multiple branch tubes 73 are clamped in the corresponding pipeline grooves 54 one by one and the self-locking mechanism 53 is pushed to squeeze and disconnect them, and the puncture needle 71 and the clamping block 72 are clamped in the corresponding clamping groove 51, thereby completing the installation of the blood collection needle tube 7;

[0081] When the self-locking mechanism 53 is self-locking, the spring 532 elastically presses the extrusion block 533, and the extrusion block 533 squeezes and disconnects the branch pipe 73 in the pipeline groove 54. When the extrusion of the extrusion block 533 is released, the push block 531 drives the extrusion block 533 to move away from the pipeline groove 54, thereby releasing the extrusion of the branch pipe 73, thereby completing the on-off control of the branch pipe 73.

[0082] When installing the mounting frame 5, the mounting frame 5 is placed on the positioning plate 83 for support. At this time, the locking screws 85 on the locking plates 81 on both sides are screwed to tighten and fix the mounting frame 5, thereby completing the installation of the mounting frame 5.

[0083] When adjusting the height of the mounting frame 5, the adjusting screw 84 is loosened, and the height of the positioning plate 83 is adjusted. After the height adjustment of the positioning plate 83 is completed, the adjusting screw 84 is screwed again to lock and fix it, thereby completing the adjustment of the height of the mounting frame 5;

[0084] When the patient's arm is placed on the support plate 3, the extension and retraction of the electric telescopic rod 33 is controlled as needed to drive the support plate 3 to adjust its angle, so that the angle of the support plate 3 is better suitable for the placement of the patient's arm, thereby completing the adjustment of the angle of the support plate 3.

[0085] The above are preferred implementation modes of the present invention. Those skilled in the art to which the present invention belongs can also change and modify the above implementation modes. Therefore, the present invention is not limited to the above specific implementation modes. Any obvious improvements, substitutions or modifications made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention.

Claims

1. A blood sampling auxiliary device, characterized in that: It comprises a base (1), a blood collection cuff (2) for passing through an arm and constricting a blood pulse when collecting blood, a blood collection tube (6) for storing blood samples, a mounting frame (5) for positioning and placing the blood collection tube (6), and a blood collection needle tube (7) for simultaneously connecting to a plurality of blood collection tubes (6); The cuff (2) comprises a fixed ring (21) for fixed support and an adjusting ring (23) capable of shrinking adjustment. When the adjusting ring (23) moves leftward in the fixed ring (21), it cooperates with the inner wall of the fixed ring (21) to shrink and adjust. An air bag ring (24) is installed on the inner side of the adjusting ring (23). The air bag ring (24) is connected to an air pump through a pipeline. Adjusting screws (22) for adjusting the adjusting ring (23) leftward and rightward are installed on both the front and rear sides of the fixed ring (21). The blood collection needle tube (7) comprises a puncture needle (71) connected one by one to a plurality of blood collection tubes (6) and a blood collection needle (76) used to collect blood from the punctured blood tubes, one end of the blood collection needle (76) is fixed with a blood collection hose (75), the upper end of the blood collection hose (75) is fixed with a transverse main pipeline (74), the end of the puncture needle (71) away from the blood collection tube (6) is fixed with a clamping block (72), and the end of the puncture needle (71) passing through the clamping block (72) is fixedly connected to the main pipeline (74) through a branch tube (73); The mounting frame (5) is configured in a plate shape, and a plurality of placement slots (52) for placing blood collection tubes (6) are provided on the front side of the mounting frame (5), a clamping slot (51) for positioning and clamping the puncture needle (71) and the clamping block (72) is provided on the front side of the mounting frame (5) at a position below the placement slot (52), a pipeline slot (54) for placing a branch tube (73) is provided on the front side of the mounting frame (5) at a position below the clamping slot (51), and a self-locking mechanism (53) for elastically squeezing the branch tube (73) in the pipeline slot (54) is installed on the mounting frame (5), and the self-locking mechanism (53) can be manually pushed to release the squeezing of the branch tube (73).

2. A blood sampling auxiliary device according to claim 1, characterized in that: The upper surface of the base (1) is located on the right side of the cuff (2) and is provided with a support plate (3) for supporting and placing the arm passing through it. A support plate (4) for fixing and supporting the mounting frame (5) is fixed near the rear side of the upper surface of the base (1), and the support plate (4) is arranged to be inclined toward the rear side.

3. A blood sampling auxiliary device according to claim 2, characterized in that: Connecting blocks (211) are fixed on both the front and rear sides of the fixing ring (21), and the inner hole of the fixing ring (21) is configured to be conical; The adjusting ring (23) comprises a supporting ring (232) arranged on the right side of the fixing ring (21); a plurality of shrinking plates (231) arranged in an annular shape are fixed on the left side of the supporting ring (232); and adjusting blocks (233) are fixed on both the front and rear sides of the supporting ring (232); The plurality of shrinkage sheets (231) are all inserted into the inner side of the fixing ring (21), and the outer side surfaces of the plurality of shrinkage sheets (231) are all arranged as inclined surfaces that match the inner hole wall of the fixing ring (21).

4. A blood sampling auxiliary device according to claim 3, characterized in that: The adjusting screw (22) is threadedly passed through the adjusting block (233), and a rotating handle (223) is fixed to the right end of the adjusting screw (22); A connecting column (222) inserted in the connecting block (211) is fixed to the left end of the adjusting screw rod (22), and a circular hanging platform (221) is fixed to the left end of the connecting column (222).

5. A blood sampling auxiliary device according to claim 2, characterized in that: The lower end of the mounting frame (5) is provided with a mounting groove (59) for mounting the self-locking mechanism (53), and the side of the mounting frame (5) is provided with a clearance groove (58) for movably making way for the self-locking mechanism (53); A baffle (55) for blocking the lower side of the installation groove (59) is fixed at the lower end of the installation frame (5), and a U-shaped groove (57) corresponding to the pipeline groove (54) is formed on the baffle (55); The baffle plate (55) is fixed to the mounting frame (5) by screws. A plurality of positioning holes (56) are provided at the lower end of the mounting frame (5). Positioning columns inserted into the positioning holes (56) are fixed to the upper surface of the baffle plate (55).

6. A blood sampling auxiliary device according to claim 5, characterized in that: The self-locking mechanism (53) comprises a spring (532) installed in the installation groove (59) and an extrusion block (533) located on the right side of the spring (532), the right end of the extrusion block (533) extends into the pipeline groove (54), and a push block (531) fixedly connected to the left end of the extrusion block (533) is provided on the inner side of the clearance groove (58).

7. A blood sampling auxiliary device according to claim 2, characterized in that: A horizontal fixing plate (43) is fixed to the lower end of the support plate (4), and a reinforcing plate (42) is fixed between the support plate (4) and the fixing plate (43). The support plate (4) is provided with a mounting hole (41) for matching with the mounting frame (5) for fixing.

8. A blood sampling auxiliary device according to claim 7, characterized in that: A fixing frame (8) that can be adjusted up and down is installed on the side of the support plate (4), and a plurality of guide openings (9) for adjusting and guiding the fixing frame (8) are provided on the support plate (4); The fixing frame (8) comprises a positioning plate (83) for supporting and placing the mounting frame (5); a plurality of adjustment plates (82) are fixed on the lower side of the positioning plate (83); and locking plates (81) are fixed at both ends of the positioning plate (83); locking screws (85) for tightening and fixing the mounting frame (5) are threadedly mounted on the locking plates (81); and adjustment screws (84) that penetrate the guide opening (9) are threadedly mounted on the adjustment plates (82).

9. A blood sampling auxiliary device according to claim 2, characterized in that: The support plate (3) is configured to be in an arc shape, and a vertical plate (31) is fixed to the lower left end of the support plate (3), and a bottom plate (32) is fixed to the lower end of the vertical plate (31).

10. A blood sampling auxiliary device according to claim 9, characterized in that: The lower end of the vertical plate (31) is rotatably connected to the bottom plate (32), the upper surface of the bottom plate (32) is hinged with an electric telescopic rod (33), and the upper end of the electric telescopic rod (33) is hinged to the lower surface of the support plate (3).

Images