Portable bedside blood sampling and mixing device

Abstract

The utility model discloses a portable bedside blood sampling and mixing device, including support, swing motor and trailer tray, swing motor sets up on the support, and swing motor is equipped with the wobble shaft, the trailer tray is fixed on the wobble shaft of swing motor, and the tray is equipped with a plurality of blood collection tube buckles and at least one arterial blood collector buckle, wherein, after completing the collection of the venous blood in the patient's body and inputting into the blood collection tube and mixing with the anticoagulant in it and loading the blood collection tube on the trailer tray, and completing the collection of the arterial blood in the patient's body and inputting into the arterial blood collector and mixing with the anticoagulant in it and loading the arterial blood collector on the trailer tray, the swing motor is started, and the swing motor makes the wobble shaft reciprocating swing movement of fixed angle, and then drives the trailer tray reciprocating swing movement of fixed angle, thereby realizing the mixing of the venous blood in the blood collection tube and the anticoagulant and the mixing of the arterial blood in the arterial blood collector and the anticoagulant.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a portable bedside blood collection and mixing device. Background Technology

[0002] In clinical medical practice, blood tests are an indispensable tool for modern disease diagnosis, treatment evaluation, and health screening. Immediate, thorough, and gentle mixing of blood samples after collection is a crucial pretreatment step to ensure accurate test results. Especially for vacuum blood collection tubes containing anticoagulants (such as EDTA and heparin), insufficient mixing can lead to microthrombi, cell aggregation, or incomplete serum separation, resulting in anticoagulation failure and severely interfering with test results. Conversely, excessive mixing can easily cause blood cell rupture (hemolysis), which can also cause abnormalities in multiple biochemical indicators.

[0003] Currently, the mixing process after point-of-care blood collection mainly relies on traditional manual mixing methods and automated laboratory mixing equipment. Both of these methods either have low standardization or are inconvenient to carry, and neither can meet the rapid response requirements of point-of-care testing (POCT) scenarios. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide a portable bedside blood collection and mixing device to meet the rapid response needs of bedside instant testing scenarios.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model discloses a portable bedside blood collection and mixing device, including... A support frame; A rocking motor is mounted on the bracket, and the rocking motor is equipped with a rocking shaft; A tray is fixed on the rocking shaft of the rocking motor. The tray is equipped with several blood collection tube clips and at least one arterial blood collection device clip, which are used to install several blood collection tubes and at least one arterial blood collection device respectively. The blood collection tube and arterial blood collection device are pre-filled with anticoagulant. After collecting venous blood from the patient, it is injected into the blood collection tube and mixed with the anticoagulant. The blood collection tube is then loaded onto the tray. Similarly, after collecting arterial blood from the patient, it is injected into the arterial blood collection device and mixed with the anticoagulant. The arterial blood collection device is then loaded onto the tray. The oscillating motor is then activated. The oscillating motor causes the oscillating shaft to reciprocate at a fixed angle, which in turn drives the tray to reciprocate at a fixed angle. This ensures that the venous blood in the blood collection tube and the anticoagulant are mixed evenly, as well as the arterial blood in the arterial blood collection device.

[0006] Preferably, the bottom of the bracket is provided with a base.

[0007] Preferably, the tray is rectangular in shape, and the blood collection tube and arterial blood collection device are fixed along the length of the tray by blood collection tube clips and arterial blood collection device clips, respectively.

[0008] In a preferred embodiment, the tray is provided with three blood collection tube clips and one arterial blood collection device clip, which are arranged side by side on the tray; wherein, the three blood collection tubes are respectively set on the tray by the three blood collection tube clips, and the one arterial blood collection device is set on the tray by the arterial blood collection device clip.

[0009] In another preferred embodiment, the tray has a left-side test tube row and a right-side test tube row on each side. Each of the left-side and right-side test tube rows includes three blood collection tube clips and one arterial blood collection device clip. The three blood collection tube clips and one arterial blood collection device clip of the left-side and right-side test tube rows are arranged side-by-side on the tray. The three blood collection tubes of the left-side and right-side test tube rows are respectively loaded onto the tray using the three blood collection tube clips, and the arterial blood collection devices of the left-side and right-side test tube rows are loaded onto the tray using the arterial blood collection device clips. The three blood collection tubes and one arterial blood collection device of the left-side test tube row and the three blood collection tubes and one arterial blood collection device of the right-side test tube row are symmetrical about the center line of the tray.

[0010] In a preferred embodiment, the rocking motor includes: The driving device includes a drive motor, a first gear, a second gear, a drive rod, and a connecting rod. The first gear is fixed to the output end of the drive motor. The second gear has an eccentric hole, and the drive rod is disposed on the eccentric hole of the second gear to form an eccentric shaft. The second gear meshes with the first gear. One end of the connecting rod is fixedly connected to the rocking shaft, and the other end has an elongated groove. The drive rod extends into the elongated groove and is movably connected to the elongated groove. The housing includes an upper housing and a lower housing. The upper housing is fastened to the lower housing to form a closed accommodating cavity. The housing is sleeved on the outside of the first gear, the second gear, the drive rod, and the connecting rod of the drive device. Driven by the rotation of the drive motor, the rocking shaft performs a high-frequency reciprocating oscillating motion at a fixed angle through the cooperation of the first gear, the second gear, the drive rod, and the connecting rod.

[0011] In another preferred embodiment, the swing motor includes a motor, a small gear, a large sector gear, and a swing shaft. The output shaft of the motor is fixedly connected to the small gear; one end of the swing shaft is fixedly set at the center of the large sector gear; a gear is provided on the arc wall of the large sector gear, and the small gear meshes with the gear of the large sector gear; the rocking shaft is fixedly connected to the swing shaft. When the motor is started, the output shaft of the motor drives the small gear to rotate, the small gear drives the large sector gear to rotate, and the rotation of the large sector gear drives the swing shaft to swing, thereby realizing the swing of the rocking shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model relates to a portable bedside blood collection and mixing device, comprising a support, a rocking motor, and a tray. The rocking motor is mounted on the support and is equipped with a rocking shaft. The tray is fixed on the rocking shaft of the rocking motor and has several blood collection tube clips and at least one arterial blood collection device clip, for respectively installing several blood collection tubes and at least one arterial blood collection device. The blood collection tubes and arterial blood collection devices are pre-filled with anticoagulant. After collecting venous blood from the patient and injecting it into the blood collection tube to mix with the anticoagulant, and then loading the blood collection tube onto the tray, and after collecting arterial blood from the patient and injecting it into the arterial blood collection device to mix with the anticoagulant, and then loading the arterial blood collection device onto the tray, the rocking motor is activated. The rocking motor causes the rocking shaft to reciprocate at a fixed angle, thereby driving the tray to reciprocate at a fixed angle, thus achieving uniform mixing of venous blood in the blood collection tubes with the anticoagulant and uniform mixing of arterial blood in the arterial blood collection device with the anticoagulant.

[0013] In addition, compared with the prior art, the present invention also has the following beneficial effects: (1) High mixing quality: The compound motion mode generated by the double spring mechanism has high mixing efficiency and is gentle, which significantly reduces the hemolysis rate.

[0014] (2) Standardized operation: Mechatronics control eliminates the uncertainty of manual operation and ensures the consistency of sample quality.

[0015] (3) Strong bedside applicability: The tray and base solve the vibration stability problem, and the portable design meets the needs of POCT scenarios.

[0016] (4) Safe and convenient: One-click operation and automatic timer greatly improve the work efficiency and safety of medical staff. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the portable bedside blood collection and mixing device provided in Embodiment 1 of this utility model; Figure 2 yes Figure 1 A schematic diagram showing three blood collection tubes and one arterial blood collection device arranged side by side on a tray; Figure 3 yes Figure 1 A schematic diagram of the structure in which the left and right rows of test tubes are arranged side by side on a tray.

[0018] Figure 4 This is a schematic diagram of the external structure of a swing motor provided in Embodiment 2 of this utility model; Figure 5 yes Figure 4 A schematic diagram of the internal structure of a rocking motor.

[0019] Figure 6 This is a schematic diagram of another swing motor provided in Embodiment 3 of this utility model.

[0020] Explanation of reference numerals in the attached figures: A-Bracket, A0-Base; B - Rocking motor, B0 - Rocking shaft; C-Tray, C-Blood collection tube clip, C1-Artery blood collection device clip; 1-Drive device, 10-Drive motor, 11-First gear, 12-Second gear, 13-Drive rod, 14-Connecting rod; 2-Shell; 21-Motor, 22-Pinary gear, 23-Sector gear, 24-Oscillating shaft, 25-Bearing housing, 26-Reducer, 260-Reducer mounting base; 3-Main frame, 30-Feeding fixed crossbeam, 31-Gear protective cover, 32-Limit sensor switch mounting plate, 33-Right limit sensor switch. Detailed Implementation

[0021] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0022] Example 1: A portable bedside blood collection and mixing device Embodiment 1 of this utility model provides a portable bedside blood collection and mixing device, the structure of which will be described in detail below with reference to the accompanying drawings.

[0023] refer to Figures 1 to 3 The portable bedside blood collection and mixing device includes A support A; A rocking motor B is mounted on the bracket A, and the rocking motor B is equipped with a rocking shaft B0; A tray C is fixed on the rocking shaft B0 of the rocking motor B. The tray C is equipped with several blood collection tube clips C0 and at least one arterial blood collection device clip C1, which are used to install several blood collection tubes and at least one arterial blood collection device respectively. The blood collection tube and arterial blood collection device are pre-filled with anticoagulant. After collecting venous blood from the patient, it is injected into the blood collection tube and mixed with the anticoagulant. The blood collection tube is then loaded onto the tray C. Similarly, after collecting arterial blood from the patient, it is injected into the arterial blood collection device and mixed with the anticoagulant. The arterial blood collection device is then loaded onto the tray C. The oscillating motor B is then activated. The oscillating motor B causes the oscillating shaft B0 to perform a fixed-angle reciprocating oscillating motion, which in turn drives the tray C to perform a fixed-angle reciprocating oscillating motion. This ensures that the venous blood in the blood collection tube and the anticoagulant are mixed evenly, and that the arterial blood in the arterial blood collection device is mixed evenly with the anticoagulant.

[0024] For ease of placement, the bottom of the bracket A is provided with a base A0.

[0025] Specifically, the tray C used to load blood collection tubes and arterial blood collection devices is rectangular in shape, and the blood collection tubes and arterial blood collection devices are fixed in the length direction of the tray C by blood collection tube clip C0 and arterial blood collection device clip C1, respectively.

[0026] In one specific implementation, the tray C is provided with three blood collection tube clips C0 and one arterial blood collection device clip C1, which are arranged side by side on the tray C; wherein, the three blood collection tubes are respectively set on the tray C by the three blood collection tube clips C0, and the one arterial blood collection device is set on the tray C by the arterial blood collection device clip C1.

[0027] In another specific implementation, a left test tube row and a right test tube row are respectively arranged on both sides of the tray C. Each of the left and right test tube rows includes three blood collection tube clips C0 and one arterial blood collection device clip C1. The three blood collection tube clips C0 and one arterial blood collection device clip C1 of the left and right test tube rows are arranged side by side on the tray C. The three blood collection tubes of the left and right test tube rows are loaded on the tray C through the three blood collection tube clips C0, and the arterial blood collection devices of the left and right test tube rows are loaded on the tray C through the arterial blood collection device clip C1. The three blood collection tubes and one arterial blood collection device in the left test tube row and the three blood collection tubes and one arterial blood collection device in the right test tube row are symmetrical about the center line of the tray C.

[0028] To facilitate blood collection from patients, the blood collection tube is equipped with a connecting tube with a blood collection needle. One end of the connecting tube with the blood collection needle is inserted into a vein in the patient, and the other end is connected to the rubber stopper of the blood collection tube.

[0029] After the anticoagulant in the blood collection tube is mixed with the blood collected from the patient, multiple blood collection tubes are placed on a collection tray. By shaking the portable bedside blood collection mixing device, the mixture of blood and anticoagulant in the multiple blood collection tubes is shaken and mixed evenly, thereby achieving a uniform dispersion effect.

[0030] To facilitate the collection of arterial blood from patients, the arterial blood collection device includes a syringe and a needle, with the needle positioned at the tip of the syringe. The anticoagulant is pre-filled inside the syringe. The device is placed on a collection tray, and the blood and anticoagulant mixture within the device is shaken and mixed using a portable bedside blood mixing device, achieving a uniform dispersion.

[0031] The specific structure of the rocking motor B will be described in detail below. Specifically, Embodiments 2 and 3 each provide a rocking motor.

[0032] Example 2: A swing motor Embodiment 2 of this utility model provides a swing motor, the structure of which will be described in detail below.

[0033] refer to Figure 4 and Figure 5 The swing motor B, as a reciprocating swing motor drive device, includes a drive device 1 and a housing 2.

[0034] The drive unit 1 includes a drive motor 10, a first gear 11, a second gear 12, a drive rod 13, and a connecting rod 14. The first gear 11 is fixed to the output end of the drive motor 10; the second gear 12 has an eccentric hole, and the drive rod 13 is disposed on the eccentric hole of the second gear 12 to form an eccentric shaft; the second gear 12 meshes with the first gear 11; one end of the connecting rod 14 is fixedly connected to the rocking shaft B0, and the other end has an elongated groove, into which the drive rod 13 extends and is movably connected. The housing 2 includes an upper housing and a lower housing. The upper housing is fastened to the lower housing to form a closed accommodating cavity. The housing 2 is sleeved on the outside of the first gear 11, the second gear 12, the drive rod 13 and the connecting rod 14 of the drive device 1. Driven by the rotation of the drive motor 10, the rocking shaft B0 performs a high-frequency reciprocating oscillating motion at a fixed angle through the cooperation of the first gear 11, the second gear 12, the drive rod 13, and the connecting rod 14.

[0035] For more details on the structure of the rocking motor B in Embodiment 2, please refer to Chinese Utility Model Patent Application No. 202122318804.4 entitled "Reciprocating Rocking Motor Drive Device".

[0036] Example 3: Another type of swing motor Embodiment 3 of this utility model provides another swing motor, the structure of which will be described in detail below.

[0037] refer to Figure 6 The swing motor B includes a transmission mechanism and a main frame 3. Specifically, the main frame 3 is a rectangular frame, including an upper frame, a lower frame, and four uprights connecting the four corners of the upper and lower frames. A feed fixing beam 30 is provided on the main frame 3.

[0038] The transmission mechanism includes a motor 21, a small gear 22, a large sector gear 23, and a swing shaft 24. The output shaft of the motor 21 is fixedly connected to the small gear 22. One end of the swing shaft 24 is fixedly mounted on the center of the large sector gear 23. Gears are provided on the arcuate wall of the large sector gear 23, and the small gear 22 meshes with the gears of the large sector gear 23. The rocking shaft B0 is fixedly connected to the swing shaft 24. When the motor 21 is started, the output shaft of the motor 21 drives the pinion 22 to rotate, the pinion 22 drives the sector gear 23 to rotate, and the sector gear 23 rotates, causing the swing shaft 24 to swing, thereby realizing the swing of the rocking shaft B0.

[0039] Specifically, a transmission shaft is connected to the output shaft of the motor 21, and the pinion 22 is mounted on the transmission shaft.

[0040] To facilitate control of the output speed of the motor 21, a speed reducer mounting base 260 is provided on the side of the main frame 3 where the motor 21 is located, and a speed reducer 26 is mounted on the speed reducer mounting base 260; the speed reducer 26 is located on the output shaft of the motor 21.

[0041] Preferably, the longitudinal extension line of the output shaft where the small gear 22 is located is perpendicular to the plane where the large sector gear 23 is located.

[0042] Specifically, the swing motor B also includes a main frame 3, two bearings, and two bearing seats 25. The main frame 3 is a rectangular frame, and the end of the swing shaft 24 away from the large sector gear 23 passes through the main frame 3; one end of the swing shaft 24 is fixedly set at the center of the large sector gear 23, and the other end passes through the main frame 3 and extends into the space between the upper and lower beams on the opposite side; the two bearings are respectively located at both ends of the swing shaft 24, and each bearing is equipped with a bearing seat 25. The two bearing seats 25 are fixed between the upper and lower beams on both sides of the main frame 3.

[0043] To protect the large sector gear 23, a gear protective cover 31 is provided on the outer side of the large sector gear 23, and the gear protective cover 31 is fixed on the main frame 3.

[0044] More specifically, the motor 21 is a stepper motor or a servo motor. A left limit switch is provided at the position where the material chute bend 33 swings to the leftmost position, and a right limit switch is provided at the position where the material chute bend 33 swings to the rightmost position. The motor 21 is equipped with a controller, and the left limit switch and the right limit switch are respectively connected to the controller.

[0045] In one specific implementation, a limit switch mounting plate 32 is provided on the inner side of the large sector gear 23. The limit switch mounting plate 32 is parallel to the large sector gear 23. Specifically, the limit switch mounting plate 32 is fixed to the main frame 3.

[0046] Specifically, the limit sensor switch mounting plate 12 is provided with a left limit hole and a right limit hole, and a left limit sensor switch and a right limit sensor switch 33 are respectively provided in the left limit hole and the right limit hole, and the left limit sensor switch and the right limit sensor switch 33 are respectively located below and above the sector gear 23.

[0047] When the material chute bend 33 swings to the farthest position to the left, the corresponding working position is the left working position, which is controlled by the left limit sensor switch; when the material chute bend 33 swings to the farthest position to the right, the corresponding working position is the right working position, which is controlled by the right limit sensor switch 33. The motor 21 is a stepper motor or a servo motor. During the swinging process of the rocking shaft B0, the motor 21 can control the middle working position between the left working position and the right working position, so that the rocking shaft B0 corresponding to the middle working position is located on the center line corresponding to the right working position and the left working position.

[0048] Example 4: A portable bedside blood collection and mixing method Embodiment 4 of this utility model provides a portable bedside blood collection and mixing method, using the device of Embodiment 1. The method includes the following steps: Step 1: Blood collection, which is divided into venous blood collection and arterial blood collection. 1. Venous blood collection When venous blood from a patient needs to be collected, a lancet is inserted into the patient's vein, and the venous blood enters the blood collection tube through a connecting tube, where it mixes with the anticoagulant inside the blood collection tube.

[0049] 2. Arterial blood sampling When it is necessary to collect arterial blood from a patient, the needle of the arterial blood collection device is inserted into the patient's artery, and the arterial blood enters the needle tube of the arterial blood collection device and mixes with the anticoagulant.

[0050] Step 2: Mix the collected blood with the anticoagulant thoroughly. Multiple blood collection tubes and arterial blood collection devices are placed together on the collection tray. Start the swing motor B. The swing motor B causes the swing shaft B0 to swing back and forth at a fixed angle, which in turn drives the tray C to swing back and forth at a fixed angle. This achieves the goal of mixing the venous blood in the blood collection tube with the anticoagulant and mixing the arterial blood in the arterial blood collection device with the anticoagulant, ultimately achieving the goal of mixing the blood and the anticoagulant evenly.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable bedside blood collection and mixing device, characterized in that, include A stent (A); A rocking motor (B) is mounted on the bracket (A), and the rocking motor (B) is equipped with a rocking shaft (B0). A tray (C) is fixed on the rocking shaft (B0) of the rocking motor (B). The tray (C) is equipped with a plurality of blood collection tube clips (C0) and at least one arterial blood collection device clip (C1) for installing a plurality of blood collection tubes and at least one arterial blood collection device respectively. The blood collection tube and arterial blood collection device are pre-filled with anticoagulant. After collecting venous blood from the patient, it is injected into the blood collection tube and mixed with the anticoagulant. The blood collection tube is then loaded onto the tray (C). Similarly, after collecting arterial blood from the patient, it is injected into the arterial blood collection device and mixed with the anticoagulant. The arterial blood collection device is then loaded onto the tray (C). The oscillating motor (B) is then activated. The oscillating motor (B) causes the oscillating shaft (B0) to oscillate at a fixed angle, which in turn drives the tray (C) to oscillate at a fixed angle. This ensures that the venous blood in the blood collection tube and the anticoagulant are mixed evenly, as well as the arterial blood in the arterial blood collection device.

2. The portable bedside blood collection and mixing device according to claim 1, characterized in that, The base (A0) is disposed at the bottom of the bracket (A).

3. The portable bedside blood collection and mixing device according to claim 2, characterized in that, The tray (C) is rectangular in shape, and the blood collection tube and arterial blood collection device are fixed to the length of the tray (C) by the blood collection tube clip (C0) and the arterial blood collection device clip (C1), respectively.

4. The portable bedside blood collection and mixing device according to claim 3, characterized in that, The tray (C) is equipped with three blood collection tube clips (C0) and one arterial blood collection device clip (C1). Three blood collection tube clips (C0) and one arterial blood collection device clip (C1) are arranged side by side on the tray (C); The three blood collection tubes are respectively set on the tray (C) by three blood collection tube clips (C0), and the arterial blood collection device is set on the tray (C) by an arterial blood collection device clip (C1).

5. The portable bedside blood collection and mixing device according to claim 3, characterized in that, The tray (C) has a left test tube row and a right test tube row on each side. The left test tube row and the right test tube row each include three blood collection tube clips (C0) and one arterial blood collection device clip (C1). The three blood collection tube clips (C0) and one arterial blood collection device clip (C1) of the left and right test tube rows are arranged side by side on the tray (C); The three blood collection tubes of the left and right test tube rows are respectively loaded onto the tray (C) through three blood collection tube clips (C0), and the arterial blood collection devices of the left and right test tube rows are loaded onto the tray (C) through arterial blood collection device clips (C1). The three blood collection tubes and one arterial blood collection device in the left test tube row and the three blood collection tubes and one arterial blood collection device in the right test tube row are symmetrical about the center line of the tray (C).

6. The portable bedside blood collection and mixing device according to claim 1, characterized in that, The swing motor (B) includes: The driving device (1) includes a drive motor (10), a first gear (11), a second gear (12), a drive rod (13), and a connecting rod (14). The first gear (11) is fixed on the output end of the drive motor (10). The second gear (12) is provided with an eccentric hole, and the drive rod (13) is provided on the eccentric hole of the second gear (12) to form an eccentric shaft. The second gear (12) meshes with the first gear (11). One end of the connecting rod (14) is fixedly connected to the rocking shaft (B0), and the other end is provided with a long groove. The drive rod (13) extends into the long groove and is movably connected to the long groove. The housing (2) includes an upper housing and a lower housing. The upper housing is fastened to the lower housing to form a closed accommodating cavity. The housing (2) is sleeved on the outside of the first gear (11), the second gear (12), the drive rod (13), and the connecting rod (14) of the drive device (1). Under the rotational drive of the drive motor (10), the rocking shaft (B0) is made to perform a high-frequency reciprocating swing motion at a fixed angle through the cooperation of the first gear (11), the second gear (12), the drive rod (13), and the connecting rod (14).

7. The portable bedside blood collection and mixing device according to claim 1, characterized in that, The swing motor (B) includes a motor (21), a small gear (22), a large sector gear (23), and a swing shaft (24). The output shaft of the motor (21) is fixedly connected to the small gear (22); one end of the swing shaft (24) is fixedly set on the center of the sector gear (23); a gear is provided on the arc wall of the sector gear (23), and the small gear (22) meshes with the gear of the sector gear (23); the rocking shaft (B0) is fixedly connected to the swing shaft (24); When the motor (21) is started, the output shaft of the motor (21) drives the small gear (22) to rotate, the small gear (22) drives the large sector gear (23) to rotate, and the large sector gear (23) drives the swing shaft (24) to swing, thereby realizing the swing of the rocking shaft (B0).

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