Blood drawing device

Abstract

The invention relates to the field of medical auxiliary instruments, and particularly discloses a blood drawing device. Comprising a bottom plate, a lifting assembly, a stand column, a driving part and a plurality of feeding assemblies, the stand column is vertically arranged on the bottom plate, the lifting assembly comprises a lifting disc, a sleeve and a rotating block, the sleeve is arranged on the stand column in a sleeving mode and can slide in the axial direction of the stand column, the driving part drives the sleeve to rotate, the rotating block is fixedly connected with the sleeve and is in threaded fit with the stand column, and the lifting disc is fixed to the sleeve; a plurality of fixing sleeves are arranged on the lifting disc in the circumferential direction, the feeding assemblies are arranged on the periphery of the lifting disc in the circumferential direction, the feeding assemblies and the fixing sleeves are in one-to-one correspondence, each feeding assembly comprises a storage box and a feeding push rod, each storage box is provided with a discharging port opposite to the corresponding fixing sleeve, and the feeding push rods are aligned to the discharging ports and can penetrate through the discharging ports. By means of the blood drawing device, the problem that when many vacuum blood collection tubes are needed, discharging of the vacuum blood collection tubes is slow is solved.

Description

Technical Field

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

[0002] A vacuum blood collection tube is a disposable medical device with negative pressure inside that can collect blood quantitatively. It is used in conjunction with a venous blood collection needle when drawing blood. There are many types of vacuum blood collection tubes. Depending on the test items, the reagents or blood collection volumes in different vacuum blood collection tubes vary. Therefore, before drawing blood, you need to select a suitable vacuum blood collection tube based on the items to be tested on the patient.

[0003] The traditional selection method is that medical staff manually selects according to the examination form, but the workload of manual selection is large and the efficiency is low. At present, there is an automatic labeling and distribution vacuum blood collection tube device as shown in the patent application number CN201410820743.3. By setting a blood collection tube placement rack, a Y-axis linear motion device for the blood collection tube placement rack, a blood collection tube grabbing claw, an X-axis linear motion device for the blood collection tube grabbing claw, a Z-axis linear motion device for the blood collection tube grabbing claw, a labeling device and a blood collection tube distribution box, the blood collection tube grabbing claw bracket is fixed on the base platform and is above the blood collection tube placement rack and the labeling device. When blood is collected, the type or model of the vacuum blood collection tube is automatically screened and identified, and the designated vacuum blood collection tube is distributed to the designated location.

[0004] However, the vacuum blood collection tubes mentioned above need to be grasped one by one by the grasping claws. When a patient needs to have many examination items and needs multiple vacuum blood collection tubes, it takes a relatively longer time to take out all the vacuum blood collection tubes. Summary of the invention

[0005] The present invention is intended to provide a blood drawing device to solve the problem of slow discharge of vacuum blood collection tubes when a large number of vacuum blood collection tubes are required.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a blood drawing device, including a base plate, a lifting assembly, a column, a driving member and multiple feeding assemblies. The column is vertically arranged on the base plate, the lifting assembly includes a lifting disk, a sleeve and a rotating block, the sleeve is sleeved on the column and can slide along the axial direction of the column, the driving member drives the sleeve to rotate, the rotating block is fixedly connected to the sleeve and cooperates with the column thread, the lifting disk is fixed to the sleeve, a plurality of fixed sleeves are circumferentially arranged on the lifting disk, a plurality of feeding assemblies are circumferentially arranged on the outer periphery of the lifting disk, and the feeding assemblies correspond to the fixed sleeves one by one, the feeding assembly includes a storage box and a feeding push rod, the storage box is provided with a discharge port opposite to the fixed sleeve, the feeding push rod is aligned with the discharge port and can pass through the discharge port.

[0007] The beneficial effects of this program are:

[0008] 1. In this scheme, multiple feeding components are provided, each of which can push a vacuum blood collection tube of one specification into the fixed sleeve, and each feeding component is relatively independent. Therefore, when it is necessary to take out multiple vacuum blood collection tubes of different specifications at the same time, multiple feeding components can be started at the same time to push out multiple vacuum blood collection tubes of different specifications at the same time. The material is discharged quickly, and it will not take longer to take out all the vacuum blood collection tubes because of the large number of vacuum blood collection tubes that need to be taken out.

[0009] 2. The fixing sleeve in this solution can still fix the vacuum blood collection tube after all the vacuum blood collection tubes are discharged, which can prevent the vacuum blood collection tubes from falling off the workbench and breaking during the blood collection process. Secondly, the driving member in this solution drives the sleeve and the lifting plate to rotate, which can rotate the vacuum blood collection tube located on the lifting plate away from the medical staff to the side close to the medical staff, making it convenient for the medical staff to remove the vacuum blood collection tube.

[0010] Furthermore, the fixing sleeve is rotationally matched with the lifting plate.

[0011] The beneficial effect of this solution is that when the lifting plate moves upward, the fixed sleeve rotates to a vertical state under the action of its own gravity and the vacuum blood collection tube, which prompts the medicine in the vacuum blood collection tube to flow downward to the bottom of the vacuum blood collection tube, and also makes it easier for medical staff to remove the vacuum blood collection tube from the fixed sleeve.

[0012] Furthermore, a plurality of elastic strips are fixed in the fixing sleeve along the circumferential direction, and the elastic strips extend along the axial direction of the fixing sleeve.

[0013] The beneficial effect of this solution is that when the vacuum blood collection tube is inserted into the fixing sleeve, the elastic strip can be elastically deformed, thereby increasing the pressure on the vacuum blood collection tube, improving the fixing effect of the vacuum blood collection tube, and preventing the vacuum blood collection tube from slipping off the fixing sleeve.

[0014] Furthermore, an inner cavity is axially provided in the column, an outlet facing the fixed sleeve is provided on the side wall of the column, the outlet is connected to the inner cavity, a through hole facing the outlet is provided at the end of the fixed sleeve; and a disinfection tube is connected to the inner cavity.

[0015] The beneficial effects of this solution are: the atomized alcohol can be passed into the inner cavity through the disinfection tube, and then blown out from the outlet, entering the fixed sleeve through the through hole, and disinfecting the sealing plug of the vacuum blood collection tube. When blood is collected, the blood collection needle will not be contaminated when it passes through the sealing plug, thereby contaminating the sample in the vacuum blood collection tube. Secondly, it can also prevent the surface of the vacuum blood collection tube from being contaminated and bringing contaminants into the testing room to contaminate the testing equipment or other samples.

[0016] Furthermore, the inner cavity is connected to an evaporation tube.

[0017] The beneficial effect of this solution is that air can be ventilated into the inner cavity through the evaporation tube, and the gas can promote the evaporation of alcohol after flowing through the outlet and the through hole, thereby preventing the surface of the vacuum blood collection tube from being wet, resulting in the vacuum blood collection tube being too smooth and difficult to take out.

[0018] Furthermore, the outer shell of the lifting unit is provided with a shell, and the top of the shell is provided with a take-out opening for allowing the lifting plate to slide out.

[0019] The beneficial effect of this solution is that the shell can shield the stored vacuum blood collection tube and the lifting assembly, lifting assembly and other structures. At the same time, the atomized alcohol blown out from the outlet can also disinfect the inside of the shell, so that the inside of the shell remains clean, thereby further preventing the vacuum blood collection tube from being contaminated.

[0020] Furthermore, a discharge cavity is provided below the bottom plate, and a guide slide groove is provided in the discharge cavity; and a drop opening is provided on the bottom plate and is located above the guide slide rail.

[0021] The beneficial effect of this solution is that after the vacuum blood collection tube is put into the shell from the collection port, it can slide downward along the guide groove, which is convenient for uniformly collecting and transferring the samples to the detection room.

[0022] Furthermore, a plurality of blanking openings are provided, and the plurality of blanking openings are evenly distributed along the circumference of the sleeve.

[0023] The beneficial effect of this solution is that multiple drop openings make it easier for the vacuum blood collection tube to drop out.

[0024] Furthermore, a limiting cylinder is vertically arranged on the upper edge of the bottom plate, and the material drop opening is located between the limiting cylinder and the sleeve.

[0025] The beneficial effect of this solution is that the limiting cylinder can limit the vacuum blood collection tube entering the shell, thereby further promoting the vacuum blood collection tube to fall out of the drop opening.

[0026] Furthermore, a placement groove is provided on the top of the lifting plate, the opening of the placement groove faces upward, and the inner wall of the placement groove has an arc-shaped cross-section along the vertical direction.

[0027] The beneficial effects of this solution are as follows: the vacuum blood collection tube after blood collection is placed in the placement slot. Since the placement slot is arranged on the lifting plate, and the driving member drives the lifting plate to rotate, it can drive the blood collection tube in the placement slot to rotate, thereby promoting the mixing of blood and reagent in the blood collection tube, and no longer completely relying on manual shaking by medical personnel, thereby reducing the workload of medical personnel and improving the blood collection speed, especially when the patient needs to test a large number of items, because the medical personnel do not need to shake the vacuum blood collection tube after completing each blood collection, the medical personnel can connect the blood collection needle with the next vacuum blood collection tube after separating the vacuum blood collection tube, and collect blood with the next vacuum blood collection tube, so the interval time between the two vacuum blood collection tubes can be shorter, thereby shortening the blood collection time as a whole, reducing the pain of the patient, and improving the blood collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is an external front view of an embodiment of the present invention;

[0029] Figure 2 A three-dimensional diagram of an embodiment of the present invention;

[0030] Figure 3 Schematic diagram of the distribution of the feeding components in an embodiment of the present invention;

[0031] Figure 4 for Figure 3 Bottom view of

[0032] Figure 5 A three-dimensional diagram of a lifting assembly in an embodiment of the present invention;

[0033] Figure 6 for Figure 5 A three-dimensional view of the middle lifting plate;

[0034] Figure 7 for Figure 6 A front view of the middle lifting plate;

[0035] Figure 8 for Figure 7 A vertical cross-sectional view of

[0036] Fig. 9 for Figure 3 A perspective view of the middle feed assembly;

[0037] Fig.10 It is a three-dimensional diagram of the guide chute in the embodiment of the present invention. DETAILED DESCRIPTION

[0038] The following is further described in detail through specific implementation methods:

[0039] The figure marks in the drawings of the specification include: shell 1, inclined plate 11, bracket 12, cover plate 13, collecting port 14, column 2, limiting cylinder 3, storage box 4, guide groove 41, tension spring 42, pressure plate 43, feed push rod 44, discharge port 45, mounting plate 46, bottom plate 5, drop port 51, fixed cylinder 6, guide slide groove 61, lifting plate 7, fixed sleeve 71, placement groove 72, elastic strip 73, sleeve 8, push rod 81, first gear 82, second gear 83, rotating block 84, outlet 85.

[0040] Example

[0041] The embodiment is basically as follows Figures 1 to 10 As shown, a blood drawing device includes a housing 1, a bottom plate 5, a lifting assembly, a column 2, a driving member and six feeding assemblies are arranged in the housing 1, the bottom plate 5 is horizontally installed in the housing 1, the column 2 is vertically arranged, and the lower end of the column 2 passes through the bottom plate 5 and extends to the bottom of the bottom plate 5. A bracket 12 is provided on the top of the housing 1 through bolts, and the upper end of the column 2 is connected to the bracket 12 through bolts, and the bracket 12 supports the column 2.

[0042] The lifting assembly includes a lifting plate 7, a sleeve 8 and a rotating block 84. The sleeve 8 is sleeved on the column 2. The inner diameter of the sleeve 8 is larger than the diameter of the column 2. The lower end of the sleeve 8 passes through the bottom plate 5 and extends to the bottom of the bottom plate 5. The lower end of the sleeve 8 is interference-fitted with a first gear 82. A second gear 83 is vertically arranged between the bottom plate 5 and the bottom of the housing 1. The first gear 82 meshes with the second gear 83. The length of the second gear 83 is determined according to the distance that the sleeve 8 needs to move upward, so as to ensure that the first gear 82 can still mesh with the second gear 83 after the sleeve 8 slides upward to the highest position. The driving member in this embodiment adopts a forward and reverse motor capable of adjusting speed, and the driving member drives the second gear 83 to rotate.

[0043] The rotating block 84 is cylindrical, and the rotating block 84 is located in the sleeve 8 and has an interference fit with the sleeve 8, and the rotating block 84 is sleeved on the column 2. The inner wall of the rotating block 84 and the column 2 are both provided with threads that do not have a self-locking effect, and the rotating block 84 is threaded with the column 2. The sleeve 8 vertically penetrates the lifting plate 7 and is welded and fixed to the lifting plate 7. The top of the shell 1 is provided with a take-out port, the diameter of which is larger than the outer diameter of the lifting plate 7, and the thread on the column 2 is also higher than the take-out port to ensure that the lifting plate 7 can slide upward from the take-out port; at the same time, the top of the thread on the column 2 is lower than the top of the column 2, so that after the lifting plate 7 moves upward to the top of the take-out port, the rotating block 84 moves upward to the top of the threaded part of the column 2. A cover plate 13 is provided above the shell 1, and the column 2 vertically penetrates the cover plate 13, and the cover plate 13 and the column 2 are gap-fitted, so that the cover plate 13 can slide downward along the column 2 under the action of gravity. The outer diameter of the cover plate 13 is larger than the diameter of the pickup port, so the cover plate 13 can close the pickup port. A push rod 81 is vertically welded on the top of the lifting plate 7, and the push rod 81 is sleeved on the outside of the sleeve 8. When the lifting plate 7 slides upward, the push rod 81 pushes the cover plate 13 upward to open the pickup port. A placement groove 72 is provided on the top of the lifting plate 7, and the opening of the placement groove 72 faces upward and the side wall of the placement groove 72 is a spherical surface.

[0044] Six through grooves are provided on the lifting plate 7 along the circumference, and a fixed sleeve 71 is provided in each through groove. One end of the fixed sleeve 71 is rotatably matched with the lifting plate 7 through a rotating shaft, and when the fixed sleeve 71 is horizontal, the bottom of the fixed sleeve 71 is at the same height as the bottom of the lifting plate 7, and a plurality of elastic strips 73 are glued to the inner wall of the fixed sleeve 71 along the circumference. The elastic strips 73 in this embodiment are made of elastic rubber material, and the elastic strips 73 extend along the circumference of the fixed sleeve 71. A through hole is provided at one end of the fixed sleeve 71 close to the sleeve 8, and an inner cavity is provided in the sleeve 8, and an outlet 85 connected to the inner cavity is provided on the sleeve 8, and when the fixed sleeve 71 is kept horizontal, the outlet 85 is opposite to the through hole, and the rotating block 84 is higher than the outlet 85; the lower end of the sleeve 8 is connected to an air inlet pipe through a rotating joint, and the air inlet pipe is connected to an evaporation pipe and a disinfection pipe through a three-way valve.

[0045] The six feeding assemblies are distributed along the circumference of the sleeve 8, and the feeding assemblies correspond one-to-one to the fixed sleeve 71. The feeding assemblies include a storage box 4 and a feeding push rod 44. The storage box 4 is vertically arranged, and the lower end of the storage box 4 is provided with a discharge port 45 opposite to the fixed sleeve 71. The feeding push rod 44 is located on the side of the storage box 4 away from the sleeve 8. The feeding push rod 44 in this embodiment adopts a linear drive. The rod portion of the feeding push rod 44 is opposite to the discharge port 45 and can penetrate the discharge port 45 to push the vacuum blood collection tube at the bottom of the storage box 4 into the fixed sleeve 71.

[0046] A pressing plate 43 is disposed transversely in the material storage box 4, and connecting plates are integrally formed on both side walls of the pressing plate 43. A guide groove 41 extending vertically is disposed on both opposite side walls of the material storage box 4, and the connecting plate extends from the guide groove 41 to the outside of the material storage box 4. A tension spring 42 is disposed below the connecting plate, and a mounting plate 46 is connected to the bottom of the material storage box 4 by bolts. Both ends of the tension spring 42 are connected to the connecting plate and the mounting plate 46, respectively, and the vacuum blood collection tube can be pressed to the bottom of the material storage box 4 by the tension spring 42 and the pressing plate 43.

[0047] A limiting cylinder 3 is vertically provided on the bottom plate 5. The limiting barrel, lifting disk 7, sleeve 8, rotating block 84 and column 2 in this embodiment are coaxial. The inner diameter of the limiting cylinder 3 is larger than the outer diameter of the lifting disk 7. Six strip grooves are vertically provided on the side wall of the limiting cylinder 3. The end of the storage box 4 close to the sleeve 8 can be vertically inserted into the strip groove.

[0048] Six drop openings 51 are provided on the bottom plate 5 along the circumference of the sleeve 8. Specifically, one end of the drop opening 51 away from the sleeve 8 is opposite to the inner wall of the limiting cylinder 3. The bottom plate 5 and the inner wall of the drop opening 51 in this embodiment are covered with a buffer layer of elastic rubber material to buffer the falling vacuum blood collection tube.

[0049] A fixed cylinder 6 is provided below the bottom plate 5. The fixed cylinder 6 is sleeved on the outside of the first gear 82 and the second gear 83 to shield the first gear 82 and the second gear 83. The top and bottom of the fixed cylinder 6 are respectively against the bottom of the bottom plate 5 and the bottom of the shell 1. A guide chute 61 is also provided below the bottom plate 5. The guide chute 61 in this embodiment is spiral and is arranged around the fixed cylinder 6. The drop port 51 is located directly above the guide chute 61. The bottom of the shell 1 is also provided with a collection port 14 opposite to the lower end of the guide chute 61. An inclined plate is welded to the outer wall of the shell 1. The end of the inclined plate close to the shell 1 is located directly below the collection port 14, and the end away from the shell 1 is tilted downward and opposite to the conveyor belt that automatically conveys the vacuum blood collection tube to the detection room after blood collection.

[0050] The specific implementation process is as follows:

[0051] Initially, the lifting plate 7 is located on the bottom plate 5, and the fixed sleeve 71 is horizontal. A number of vacuum blood collection tubes of the same type are stored vertically in each storage box 4, and each vacuum blood collection tube is placed horizontally with the sealing plug facing the sleeve 8. In actual implementation, each feed push rod 44 in this embodiment is controlled by a computer. Before blood sampling, the computer determines the corresponding type of vacuum blood collection tube according to the items that the patient needs to test, and then controls the feed push rod 44 of the feed assembly where the vacuum blood collection tube is located to start, and the rod body of the feed push rod 44 extends to push the bottom vacuum blood collection tube into the fixed sleeve 71, and then controls the rod body of the feed push rod 44 to reset.

[0052] At this time, atomized alcohol is first introduced into the inner cavity through the disinfection tube, and the atomized alcohol is blown out from the outlet 85 and the through hole to disinfect the sealing plug of the vacuum blood collection tube and the outer wall of the vacuum blood collection tube; then the sterilized air is introduced through the evaporation tube to promote the volatilization of the alcohol. At the same time, the driving member is started, and the driving member drives the sleeve 8 to rotate forward through the mutually meshing first gear 82 and second gear 83, and the sleeve 8 drives the rotating block 84 to rotate. Since the rotating block 84 is threadedly matched with the column 2, the rotating block 84, the sleeve 8 and the lifting plate 7 move upward during the rotation of the rotating block 84, and at this time, the first gear 82 also moves upward synchronously relative to the second gear 83.

[0053] When the lifting plate 7 leaves the bottom plate 5, the fixing sleeve 71 rotates under the action of gravity. When the vacuum blood collection tube rotates to the top of the take-out port, the speed output by the driving member is reduced to make the lifting plate 7 rotate slowly, so as to facilitate taking out the vacuum blood collection tube located at the rear side of the column 2.

[0054] When the top rod 81 abuts against the cover plate 13, the cover plate 13 is pushed upward, so that there is an opening between the cover plate 13 and the top of the placement groove 72, so that the vacuum blood collection tube after blood collection can be placed in the placement groove 72 from the opening. At this time, the vacuum blood collection tube rotates with the lifting plate 7, and the sample and reagent in the vacuum blood collection tube are automatically shaken, and manual shaking is no longer required.

[0055] After all the blood collection of the patient is completed, the driving member is controlled to drive the sleeve 8 to rotate slowly in the opposite direction, so that the sleeve 8 and the lifting plate 7 are gradually reset downward. When the collection tank moves to a certain distance inside the housing 1, the speed of the driving member output is increased, and the speed of the lifting plate 7 moving downward is accelerated, and at the same time, the vacuum blood collection tube slides out of the collection tank under the action of centrifugation, and falls on the guide chute 61 through the drop port 51, and finally slides downward from the guide chute 61, and finally falls on the external conveyor belt from the collection port 14 and the inclined plate.

[0056] During the entire discharge process, the alcohol blown out from the outlet 85 finally flows out through the discharge port 51 and the collection port 14, disinfecting the structure passed by the vacuum blood collection tube after blood collection, thereby preventing the vacuum blood collection tube from being contaminated again, thereby preventing the vacuum blood collection tube from contaminating the detection instruments in the detection room and the samples when taking out the samples.

[0057] During the blood collection process, since the lifting plate 7 rotates slowly in the positive direction, the lifting plate 7 drives the vacuum blood collection tube to rotate to mix the sample and the reagent. At the same time, the lifting plate 7 also moves up and down in the vertical direction with a small amplitude, thereby improving the mixing effect of the sample and the reagent.

[0058] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A blood drawing device, characterized in that: It includes a base plate, a lifting assembly, a column, a driving member and multiple feeding assemblies. The column is vertically arranged on the base plate. The lifting assembly includes a lifting disk, a sleeve and a rotating block. The sleeve is sleeved on the column and can slide along the axial direction of the column. The driving member drives the sleeve to rotate. The rotating block is fixedly connected to the sleeve and cooperates with the column thread. The lifting disk is fixed to the sleeve. A plurality of fixed sleeves are circumferentially arranged on the lifting disk. A plurality of feeding assemblies are circumferentially arranged on the outer periphery of the lifting disk, and the feeding assemblies correspond to the fixed sleeves one by one. The feeding assembly includes a storage box and a feeding push rod. The storage box is provided with a discharge port opposite to the fixed sleeve. The feeding push rod is aligned with the discharge port and can penetrate the discharge port.

2. A blood drawing device according to claim 1, characterized in that: The fixed sleeve is rotatably matched with the lifting plate.

3. A blood drawing device according to claim 2, characterized in that: A plurality of elastic strips are fixed in the fixing sleeve along the circumferential direction, and the elastic strips extend along the axial direction of the fixing sleeve.

4. A blood drawing device according to claim 3, characterized in that: An inner cavity is axially arranged in the column, an outlet facing the fixing sleeve is arranged on the side wall of the column, the outlet is communicated with the inner cavity, a through hole facing the outlet is arranged at the end of the fixing sleeve, and a disinfection tube is communicated with the inner cavity.

5. A blood drawing device according to claim 4, characterized in that: The inner cavity is connected with an evaporation tube.

6. A blood drawing device according to claim 5, characterized in that: The outer shell of the lifting unit is provided with a shell, and the top of the shell is provided with a take-out opening for the lifting plate to slide out.

7. A blood drawing device according to claim 6, characterized in that: A discharge cavity is arranged below the bottom plate, and a guide slide groove is arranged in the discharge cavity; and a drop opening is arranged above the guide slide rail on the bottom plate.

8. A blood drawing device according to claim 7, characterized in that: A plurality of blanking openings are provided, and the plurality of blanking openings are evenly distributed along the circumference of the sleeve.

9. A blood drawing device according to claim 7, characterized in that: A limiting cylinder is vertically arranged on the upper edge of the bottom plate, and the drop opening is located between the limiting cylinder and the sleeve.

10. A blood drawing device according to claim 1, characterized in that: A placement groove is arranged on the top of the lifting plate, the opening of the placement groove faces upward, and the inner wall of the placement groove has an arc-shaped cross section along the vertical direction.

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