Blood sampling device

Abstract

The invention discloses a blood sampling device which comprises a mounting seat, a blood sampling mechanism and a tube loading mechanism, the blood sampling mechanism comprises a pushing assembly and a blood sampling needle, the pushing assembly is arranged on the mounting base, the blood sampling needle comprises a needle head and a conveying pipe which are connected, and the pushing assembly can be detachably connected with the needle head and drives the needle head to move in the axial direction; the tube loading mechanism comprises a tray, a conversion assembly and vacuum blood collection tubes, the tray is detachably arranged on the mounting base and provided with a plurality of containing grooves capable of containing the vacuum blood collection tubes, the conversion assembly is arranged on the mounting base, different vacuum blood collection tubes can be replaced to be connected with the conveying tube, and the vacuum blood collection tubes are placed in the containing grooves. When the blood sampling device is used, a user only needs to connect the needle head with the pushing assembly, follow-up needle insertion and blood sampling, blood sampling tube replacement and blood sampling tube arrangement can be completed through assistance of the device, operation of the user is greatly simplified, and the workload is relieved.

Description

Technical Field

[0001] The present invention particularly relates to a blood sampling device. Background Art

[0002] Blood sampling is an important step in medical examinations to ensure accurate diagnosis and treatment. The blood sampling operation steps include selecting a suitable venous puncture point, tying a compression cuff, disinfecting the skin, puncturing, connecting a vacuum blood collection tube, and collecting blood samples. The collected blood will be stored in a blood collection tube for testing and analyzing various indicators. The blood collection tubes for some test items contain anticoagulants, and the blood sample and anticoagulant inside need to be shaken before testing.

[0003] In the prior art, all the steps of blood collection are manually operated. The operator needs to collect blood and put it into tubes according to the steps, and then arrange the blood collection tubes. For subjects who need to have blood drawn multiple times, the blood collection tubes need to be replaced multiple times, and the blood collection tubes containing anticoagulants need to be shaken and mixed, resulting in low overall efficiency and a heavy manual burden. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a blood sampling device that can assist in blood sampling and reduce the burden on the operator.

[0005] In order to achieve the above-mentioned object, the present invention is implemented through the following technical solutions: a blood sampling device, including a mounting seat, a blood sampling mechanism and a tube loading mechanism;

[0006] The blood collection mechanism comprises a pushing assembly and a blood collection needle, wherein the pushing assembly is arranged on a mounting seat, and the blood collection needle comprises a needle head and a delivery tube connected thereto, and the pushing assembly can be detachably connected to the needle head and drive the needle head to move axially;

[0007] The tube loading mechanism includes a tray, a conversion assembly and a vacuum blood collection tube. The tray is detachably arranged on a mounting seat and is provided with a plurality of receiving slots capable of receiving vacuum blood collection tubes. The conversion assembly is arranged on the mounting seat and can replace different vacuum blood collection tubes to be connected to the delivery tube and place the vacuum blood collection tubes in the receiving slots.

[0008] When in use, the operator connects the needle to the push assembly, and the push assembly drives the needle to move so that it is inserted into the target blood vessel at the preset position, and then the delivery tube is inserted into the vacuum blood collection tube to draw blood into the vacuum blood collection tube. When a blood collection is completed, the delivery tube is pulled out of the vacuum blood collection tube and then inserted into another vacuum blood collection tube. The vacuum blood collection tube that has completed blood collection is placed in the receiving slot, and finally the user collects the vacuum blood collection tubes uniformly through the tray.

[0009] The beneficial effect of the above-mentioned blood sampling device is that the user only needs to connect the needle to the pushing component, and the subsequent needle insertion and blood collection, replacement of blood collection tubes and arrangement of blood collection tubes can all be completed with the assistance of the device, which greatly simplifies the user's operation and reduces the workload.

[0010] Furthermore, the pushing assembly includes a clamping block and a cylinder, a slide rail is provided on the mounting seat, the clamping block is slidably connected to the slide rail, the cylinder is connected to the clamping block and can drive the clamping block to move on the slide rail, and the clamping block can clamp or release the needle.

[0011] After the clamping block clamps and fixes the needle, the clamping block is driven by the cylinder to move on the slide rail, which can drive the needle to move along its axial direction, so as to be inserted into the vein of the blood collection object for blood collection. The needle is driven to move by the cylinder, which has the advantage of high stability.

[0012] Furthermore, two clamping blocks are symmetrically provided and can be relatively movably arranged on the slide seat and connected to each other through a spring. The slide seat is slidably connected to the slide rail, and the cylinder is connected to the slide seat. A groove adapted to the side of the needle is provided on the side where the two clamping blocks are close to each other.

[0013] When fixing the needle, just push the two clamps apart from each other. After placing the needle into the groove, release the clamps and the needle can be clamped and fixed under the action of the spring. The shape of the groove matches the needle, which can improve the fixing effect and prevent the needle from shifting.

[0014] Furthermore, a cavity is provided in one of the clamping blocks, and a socket and a strip hole connected to the cavity are respectively opened on both sides, a slidably inserted push rod is provided in the socket, one end of the push rod is located in the cavity, and the other end abuts against the other clamping block, and a rotatable push rod second is provided in the cavity, one end of the push rod second abuts against the push rod, and the other end extends from the strip hole to the outside.

[0015] When installing or removing the needle, you only need to hold the end of the push rod from the outside and drive it to rotate. The other end of the push rod can push the push rod to move in the socket, spread the two clamps apart to allow the needle to be inserted. After releasing them, the two clamps can close together under the action of the spring.

[0016] Furthermore, the conversion assembly includes a clamp block 2, a cylinder 2, a rotating column and a material box, wherein the cylinder 2 is arranged on the mounting seat and connected to the clamp block 2, and can drive the clamp block 2 to move on the mounting seat;

[0017] The rotating column is rotatably arranged on the mounting seat, and two symmetrical tube grooves are provided at the end thereof, the axial direction of the tube groove is parallel to the moving direction of the clamp block 2, one side of the tube groove is in an open shape and communicates with the outside of the tube groove, and a baffle that can be opened and closed is provided at the opening, the tray is movably arranged on the mounting seat and is located below the rotating column, and a guide groove is further provided between the rotating column and the tray, and the guide groove is arranged obliquely from top to bottom;

[0018] The material discharge box is arranged on a mounting seat and is located above a rotating column, and a discharge port is arranged at the bottom of the material discharge box.

[0019] The structure of clamp block 2 is the same as that of clamp block 1. After the needle is fixed on the clamp block, the end of the delivery tube can also be fixed on clamp block 2. When blood is collected, the upward tube slot opens the baffle. Multiple vacuum blood collection tubes are stored inside the unloading box. After unloading, a vacuum blood collection tube falls into the tube slot, and then the baffle closes the tube slot. Cylinder 2 drives clamp block 2 to insert the end of the delivery tube into the vacuum blood collection tube in the tube slot. After blood collection is completed, the rotating column rotates to rotate the tube slot downward, and the baffle opens to make it fall into the guide slot, and then falls into the receiving slot of the tray, while the upper tube slot can continue to be loaded with new vacuum blood collection tubes. This reciprocating cycle can complete multiple blood collections.

[0020] Furthermore, a gear ring is sleeved on the outer wall of the rotating column, a servo motor is provided on the mounting seat, and the servo motor is connected to a driving gear meshing with the gear ring.

[0021] After the servo motor is started, the gear ring and the rotating column can be driven to rotate through the driving gear, so as to drive the tube slot to put the vacuum blood collection tube into the tray after blood collection.

[0022] Furthermore, an arc-shaped groove connected to the tube groove is circumferentially provided in the rotating column, and the baffle can move in the arc-shaped groove and can be surrounded by the tube groove to form a circle;

[0023] An arc-shaped rack and a driving gear are also provided in the arc-shaped groove. The driving gear is rotatably arranged and meshes with the arc-shaped rack. The arc-shaped rack is connected to the baffle plate and can drive the baffle plate to move in the arc-shaped groove.

[0024] By driving the arc-shaped rack to move through the active gear, the baffle can be driven to move in the arc-shaped groove, open the opening of the tube groove, or surround the tube groove to form a circle, so as to limit the vacuum blood collection tube.

[0025] Furthermore, the mounting seat is also provided with a rotating seat and a motor, the rotating seat is rotatably arranged on the mounting seat and connected to the motor, the tray is detachably mounted on the rotating seat, and the accommodating grooves are evenly arranged on the tray around the circumference.

[0026] After each blood collection, the motor drives the rotating seat and the tray to rotate to adjust the empty receiving slot to align with the guide slot to receive the newly completed vacuum blood collection tube. After the blood collection is completed, the tray can also be driven to rotate quickly to shake and mix the blood collection tube containing anticoagulant, reducing the manual burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0028] Figure 1 A front view of a blood sampling device provided by one embodiment of the present invention;

[0029] Figure 2 for Figure 1 A side view of a clamp block of a blood sampling device is shown;

[0030] Figure 3 for Figure 1 A cross-sectional view of a rotating column of a blood sampling device is shown;

[0031] Figure 4 for Figure 1 A side view of a rotating column of a blood sampling device is shown in state 1;

[0032] Figure 5 for Figure 1 A side view of a rotating column of a blood sampling device is shown in state 2;

[0033] Reference numerals:

[0034] 10-Mounting seat;

[0035] 20-blood collection mechanism, 21-pushing assembly, 211-clamping block, 212-cylinder, 213-sliding block, 214-spring, 215-push rod, 216-push rod II, 22-blood collection needle, 23-transport tube;

[0036] 30-tube loading mechanism, 31-tray, 311-accommodating slot, 32-conversion assembly, 321-clamp block 2, 322-cylinder 2, 323-rotating column, 3231-tube slot, 3232-baffle, 3233-arc slot, 3234-arc rack, 3235-driving gear, 324-feeding box, 325-guide slot, 326-gear ring, 327-servo motor, 328-driving gear, 33-vacuum blood collection tube, 34-rotating seat, 35-motor. DETAILED DESCRIPTION

[0037] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0038] See also Figures 1 to 5 The present invention provides a blood sampling device, including a mounting seat 10, a blood sampling mechanism 20 and a tube loading mechanism 30. The blood sampling mechanism 20 is used to collect blood from a blood sampling object, and the tube loading mechanism 30 arranges and places the blood sampling tubes after the blood is collected.

[0039] like Figure 1 As shown, specifically, the blood sampling mechanism 20 includes a push assembly 21 and a blood sampling needle 22. The push assembly 21 is arranged on the mounting seat 10. The blood sampling needle 22 includes a needle head and a delivery tube 23 connected thereto. The push assembly 21 can be detachably connected to the needle head and drive the needle head to move axially to be inserted into the blood vessel of the blood sampling object. The tube loading mechanism 30 includes a tray 21, a conversion assembly 32 and a vacuum blood sampling tube 33. The tray 21 is detachably arranged on the mounting seat 10 and is provided with a plurality of receiving grooves 311 for receiving the vacuum blood sampling tube 33. The conversion assembly 32 is arranged on the mounting seat 10 and is used to replace different vacuum blood sampling tubes to be connected to the delivery tube 23 and place the vacuum blood sampling tubes into the receiving grooves 311.

[0040] When in use, the operator connects the push assembly 21 to the needle, then drives the needle to move and insert it into the blood vessel of the blood collection object at the preset position, and then inserts the delivery tube 23 into the vacuum blood collection tube 33, and the blood can be drawn into the vacuum blood collection tube. After completing a blood collection, the delivery tube 23 is pulled out of the vacuum blood collection tube, and then inserted into another vacuum blood collection tube. The vacuum blood collection tube that has completed blood collection is placed in the empty receiving slot 311, and finally the vacuum blood collection tubes can be taken away uniformly through the tray 21, which greatly simplifies the user's operating steps and reduces the workload.

[0041] Specifically, Figure 1 and Figure 2 As shown, the push assembly 21 includes a clamping block 211 and a cylinder 212. The clamping blocks 211 are symmetrically provided with two, which can be relatively movably arranged on a slide seat 213 and are connected to each other through a spring 214. The two clamping blocks 211 are provided with a groove adapted to the side of the needle on one side close to each other. The mounting seat 10 is provided with a slide rail, the slide seat 213 is slidably connected to the slide rail, and the cylinder 212 is fixedly arranged and connected to the slide seat 213.

[0042] When fixing the needle, the two clamps 211 are spread apart to put the needle into the groove. After loosening the clamp 211, the needle is clamped and fixed under the action of the spring 214, and the shape of the groove is adapted to the needle, which can improve the fixing effect and prevent the needle from shifting. Then, the clamp 211 is driven by the cylinder 212 to move on the slide rail, and the needle can be driven to move along its axial direction, so as to be inserted into the vein of the blood collection object for blood collection. The needle is driven to move by the cylinder 212, which has the advantage of high stability.

[0043] In this embodiment, a cavity is provided in one of the clamping blocks 211, and a socket and a strip hole connected to the cavity are respectively provided on both sides. A push rod 215 is provided in the socket, one end of which is located in the cavity and the other end is in contact with the other clamping block 211. A second push rod 216 is provided in the cavity, one end of which is in contact with the push rod 215 and the other end extends out of the strip hole. When installing or removing the needle, it is only necessary to hold the end of the second push rod 216 from the outside and rotate it so that the other end pushes the push rod 215 to move in the socket, and the two clamping blocks 211 are spread apart, and the needle can be inserted. After releasing, the two clamping blocks 211 close together under the action of the spring 214.

[0044] Specifically, Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the conversion assembly 32 includes a clamp block 321, a cylinder 322, a rotating column 323 and a material box 33. The cylinder 322 is arranged on the mounting seat 10 and connected to the clamp block 321, and can drive the clamp block 321 to move on the mounting seat 10. The structure of the clamp block 321 is the same as that of the clamp block 211, and can clamp and fix the hard end of the delivery tube 23 so as to insert it into the vacuum blood collection tube 33. The rotating column 323 is rotatably arranged on the mounting seat 10, and two symmetrical tube grooves 3231 are opened at the end. The axial direction of the tube grooves 3231 is parallel to the moving direction of the clamp block 321. The clamp block 321 can drive the delivery tube 23 to move to the tube mouth of one of the tube grooves 3231. One side of the tube groove 3231 is open and connected to the outside of the tube groove 3231, and a baffle 3232 that can be opened and closed is provided at the opening. The tray 21 is movably arranged on the mounting seat 10 and is located below the rotating column 323. A guide groove 325 is also provided between the rotating column 323 and the tray 21, and the guide groove 325 is inclined from top to bottom. The unloading box 33 is arranged on the mounting seat 10 and is located above the rotating column 323. The bottom of the unloading box 33 is provided with a discharge port aligned with the tube groove 3231.

[0045] After the needle is fixed on the clamp block 211, the end of the delivery tube 23 is also fixed on the clamp block 2 321. When blood is collected, the upward tube slot opens the baffle 3232. A plurality of vacuum blood collection tubes are stored in the unloading box 33. The vacuum blood collection tubes are unloaded one by one and fall into the tube slot 3231. Then the baffle 3232 closes the tube slot 3231. The cylinder 2 322 drives the clamp block 2 321 to insert the end of the delivery tube 23 into the vacuum blood collection tube 33 in the tube slot 3231. After the blood collection is completed, the rotating column 323 rotates to rotate the tube slot downward. The baffle 3232 opens again to make it fall into the guide slot 325, and then falls into the receiving slot 311 of the tray 21. The upper tube slot 3231 can continue to load new vacuum blood collection tubes. This reciprocating cycle can complete multiple tube replacement and blood collection.

[0046] In this embodiment, the outer wall of the rotating column 323 is sleeved with a toothed ring 326, and the mounting seat 10 is provided with a servo motor 327, which is connected to a driving gear 328 meshing with the toothed ring 326. After the servo motor 327 is started, the driving gear 328 can drive the toothed ring 326 and the rotating column 323 to rotate, so as to drive the tube groove to be placed in the tray 21 after the vacuum blood collection tube is collected.

[0047] An arc-shaped groove 3233 connected to the tube groove 3231 is circumferentially provided in the rotating column 323. The baffle 3232 can move in the arc-shaped groove 3233 and can be surrounded by the tube groove to form a circle. An arc-shaped rack 3234 and a driving gear are also provided in the arc-shaped groove 3233. The driving gear is rotatably arranged and connected to a driving source and meshes with the arc-shaped rack 3234. The arc-shaped rack 3234 is connected to the baffle 3232. By driving the arc-shaped rack 3234 to move through the driving gear, the baffle 3232 can be driven to move in the arc-shaped groove 3233 to open the opening of the tube groove or to be surrounded by the tube groove to form a circle, thereby limiting the position of the vacuum blood collection tube. Figure 4 and Figure 5 As shown, in this embodiment, the driving gear is connected to a fixed motor, the baffle 3232 adopts a symmetrical two-piece structure, and the arc-shaped rack 3234 and the driving gear are also provided with two sets. The motors on both sides drive the two driving gears to rotate at the same time, and the four baffles can be driven to open the tube slots on the upper and lower sides together, so as to load new blood collection tubes and remove blood collection tubes after blood collection.

[0048] The mounting base 10 is also provided with a rotating base 34 and a motor 35. The rotating base 34 is rotatably arranged on the mounting base 10 and connected to the motor 35. The tray 21 is detachably mounted on the rotating base 34. The receiving grooves 311 are evenly arranged on the tray 21 around the circumference. After each blood collection, the motor 35 drives the rotating base 34 and the tray 21 to rotate to adjust the empty receiving grooves 311 to align with the guide grooves 325, so as to facilitate receiving the newly completed vacuum blood collection tube. After the blood collection is completed, the tray 21 can also be driven to rotate quickly to shake and mix the blood collection tube containing the anticoagulant without manual shaking.

[0049] The working principle of the above-mentioned blood sampling device is as follows: when in use, the push rod 216 is rotated to push the push rod 215, the clamp block 211 and the clamp block 321 are opened, and the needle and the end of the delivery tube 23 are respectively inserted, and then they are fixed under the action of the spring 214 after being loosened. Then, the cylinder 212 is driven to drive the needle to move, so that it is inserted into the blood vessel of the blood sampling object located at the preset position, and the cylinder 232 drives the delivery tube 23 to move, so that it is inserted into the vacuum blood sampling tube 33, and blood can be drawn into the vacuum blood sampling tube. After completing a blood sampling, the delivery tube 23 is pulled out of the vacuum blood sampling tube, and the servo motor 327 drives the rotating column 323 to rotate half a circle through the driving gear 328 and the gear ring 326. The motor drives the baffle 3232 to move in the arc groove 3233 through the driving gear and the arc rack 3234 to open the tube groove 3231. The blood collection tube that has completed blood collection falls into the guide groove 325 from the bottom, and then slides into the receiving groove 311 of the tray 21. The upper unloading box 33 unloads a new empty blood collection tube and drops it into the tube groove 3231, so that blood collection and blood collection tube replacement can be cyclically performed, and finally the vacuum blood collection tubes can be collected uniformly through the tray 21. If the blood collection tube contains anticoagulants, the tray 21 can be driven by a motor to rotate to mix them.

[0050] When using the above-mentioned blood sampling device, the user only needs to fix the needle and the delivery tube before starting. The subsequent needle insertion and blood collection, replacement of blood collection tubes and arrangement of blood collection tubes can all be completed with the assistance of the device, which greatly simplifies the user's operation and reduces the workload.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A blood sampling device, characterized in that: It includes a mounting seat, a blood collection mechanism and a tube loading mechanism; The blood collection mechanism comprises a pushing assembly and a blood collection needle, wherein the pushing assembly is arranged on a mounting seat, and the blood collection needle comprises a needle head and a delivery tube connected thereto, and the pushing assembly can be detachably connected to the needle head and drive the needle head to move axially; The tube loading mechanism includes a tray, a conversion assembly and a vacuum blood collection tube. The tray is detachably arranged on a mounting seat and is provided with a plurality of receiving slots capable of receiving vacuum blood collection tubes. The conversion assembly is arranged on the mounting seat and can replace different vacuum blood collection tubes to be connected to the delivery tube and place the vacuum blood collection tubes in the receiving slots.

2. A blood sampling device according to claim 1, characterized in that: The pushing assembly includes a clamping block and a cylinder. A slide rail is provided on the mounting seat. The clamping block is slidably connected to the slide rail. The cylinder is connected to the clamping block and can drive the clamping block to move on the slide rail. The clamping block can clamp or release the needle.

3. A blood sampling device according to claim 2, characterized in that: The clamping blocks are symmetrically provided with two and can be relatively movably arranged on the slide seat and connected to each other through a spring. The slide seat is slidably connected to the slide rail, and the cylinder is connected to the slide seat. A groove adapted to the side of the needle is provided on the side where the two clamping blocks are close to each other.

4. A blood sampling device according to claim 3, characterized in that: One of the clamping blocks is provided with a cavity, and a socket and a strip hole connected to the cavity are respectively opened on both sides. A slidably inserted push rod is provided in the socket, one end of the push rod is located in the cavity, and the other end abuts against the other clamping block. A rotatable push rod is provided in the cavity, one end of the push rod abuts against the push rod, and the other end extends from the strip hole to the outside.

5. A blood sampling device according to claim 1, characterized in that: The conversion assembly includes a second clamping block, a second cylinder, a rotating column and a material box. The second cylinder is arranged on the mounting seat and connected to the second clamping block, and can drive the second clamping block to move on the mounting seat; The rotating column is rotatably arranged on the mounting seat, and two symmetrical tube grooves are provided at the end thereof, the axial direction of the tube groove is parallel to the moving direction of the clamp block 2, one side of the tube groove is in an open shape and communicates with the outside of the tube groove, and a baffle that can be opened and closed is provided at the opening, the tray is movably arranged on the mounting seat and is located below the rotating column, and a guide groove is further provided between the rotating column and the tray, and the guide groove is arranged obliquely from top to bottom; The material discharge box is arranged on a mounting seat and is located above a rotating column, and a discharge port is arranged at the bottom of the material discharge box.

6. A blood sampling device according to claim 5, characterized in that: The outer wall of the rotating column is sleeved with a gear ring, the mounting seat is provided with a servo motor, and the servo motor is connected to a driving gear meshing with the gear ring.

7. A blood sampling device according to claim 5, characterized in that: An arc-shaped groove connected to the tube groove is circumferentially formed in the rotating column, and the baffle can move in the arc-shaped groove and can be surrounded by the tube groove to form a circle; An arc-shaped rack and a driving gear are also provided in the arc-shaped groove. The driving gear is rotatably arranged and meshes with the arc-shaped rack. The arc-shaped rack is connected to the baffle plate and can drive the baffle plate to move in the arc-shaped groove.

8. A blood sampling device according to claim 5, characterized in that: The mounting seat is also provided with a rotating seat and a motor. The rotating seat is rotatably arranged on the mounting seat and connected to the motor. The tray is detachably mounted on the rotating seat. The accommodating grooves are evenly arranged on the tray around the circumference.

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