CN115568851A

CN115568851A - Blood sampling device

Info

Publication number: CN115568851A
Application number: CN202211362971.1A
Authority: CN
Inventors: 陈玲; 王少清; 毛楠; 张坤; 钟萍; 王辉; 李艳丽
Original assignee: First Affiliated Hospital of Chengdu Medical College
Current assignee: First Affiliated Hospital of Chengdu Medical College
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-01-06

Abstract

The invention provides a blood sampling device, which belongs to the technical field of sampling devices and comprises a cylinder body, wherein the top of the cylinder body is provided with a moving outlet, and one side of the bottom of the cylinder body is provided with an outlet; the servo motor is arranged at the center of the bottom of the cylinder body through a bracket; the bottom of the rotary table is in transmission connection with an output shaft of the servo motor, two hollow cylinders penetrate through two sides of the rotary table, and a sleeve is slidably arranged in each hollow cylinder; a sampling cylinder is arranged in the sleeve, and the bottom of the sampling cylinder is communicated with a sampling needle; and the driving mechanism is arranged on the turntable and drives the two sleeves to move up and down in a reverse manner, so that the two sampling barrels are driven to move up and down in a reverse manner. The device can carry out blood sampling many times, guarantees health and security.

Description

Blood sampling device

Technical Field

The invention belongs to the technical field of sampling devices, and particularly relates to a blood sampling device.

Background

When treating the patient that suffers from the nephropathy, medical personnel can do various examinations to patient in order to further know patient's state of an illness, for example, when hemodialysis, need take a sample to blood, sample specimen collection back needs medical personnel to transport it to the clinical laboratory and inspect.

Some blood sampling device that have now install the motor on including the protective housing of hollow cylinder structure, the protective housing inner wall, the motor output shaft is fixed with the lead screw, and the lead screw has cup jointed the thread bush, and the rotation is connected with first connecting rod on the thread bush, is provided with the mounting bracket on a pair of inside wall of protective housing, and the rigid coupling has the guide post between two mounting brackets, has cup jointed the fly leaf on the guide post. When the sampling needle is used, the sampling needle is inserted into blood, the motor is started, the motor rotates reversely to drive the screw rod to rotate, the first connecting rod connected with the threaded sleeve is driven to rotate, the fixing block is driven to move along the guide post, and the piston is driven to move, so that sampling is performed.

The sampling device is only provided with one sampling cylinder and one needle head, so that when the syringe or the blood sampling needle needs to be replaced, time is wasted; the syringe or sampling needle is also likely to come into contact with medical personnel, thereby causing cross-infection; in addition, the syringe or the sampling needle may stab medical personnel when contacting the medical personnel, causing safety and sanitation problems.

Disclosure of Invention

In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a blood sampling device.

In order to achieve the above purpose, the invention provides the following technical scheme:

a blood sampling device comprising:

the device comprises a cylinder body, a cylinder body and a cylinder cover, wherein the top of the cylinder body is provided with a moving outlet, and one side of the bottom of the cylinder body is provided with an outlet;

the servo motor is arranged at the center of the bottom of the cylinder through a bracket;

the bottom of the rotary table is in transmission connection with an output shaft of the servo motor, two hollow cylinders penetrate through two sides of the rotary table, and a sleeve is arranged in each hollow cylinder in a sliding mode;

a sampling cylinder is arranged in the sleeve, and the bottom of the sampling cylinder is communicated with a sampling needle;

and the driving mechanism is arranged on the turntable and drives the two sleeves to reversely move up and down, so that the two sampling barrels are driven to reversely move up and down.

Furthermore, a sliding groove is formed in one side wall, away from the opening, of the hollow cylinder, a sliding block matched with the sliding groove is arranged on one side wall, away from the rack, of the sleeve, a through hole is formed in one side of the sleeve, and the sampling needle penetrates through the through hole and is right opposite to the outlet.

Further, two the relative both sides wall of hollow section of thick bamboo all is equipped with the opening, actuating mechanism includes:

the two racks are respectively arranged on the side walls of the two sleeves, and the racks are opposite to the openings;

the rotating motor is arranged at the center of the upper surface of the turntable through a fixing frame;

the driving gear is in transmission connection with an output shaft of the rotating motor;

and the two driven gears are rotatably arranged above the rotary table and are respectively meshed with two sides of the driving gear, the other side of each driven gear is meshed with the rack, and each driven gear rotates in the opening.

Furthermore, a push rod is arranged in the sampling cylinder in a sliding mode, a piston is fixedly arranged at the bottom end of the push rod, and a pushing mechanism is connected to the top end of the piston in a transmission mode.

Further, the pushing mechanism includes:

the cavity is arranged above the sampling cylinder, penetrates out of the moving outlet, and two sides of the inner wall of the cavity are provided with slide rails;

the pushing motor is arranged at the top of the cavity;

the screw rod is in transmission connection with an output shaft of the pushing motor, a sliding plate is connected to the screw rod in a threaded mode, moving blocks matched with the sliding rails are arranged on two sides of the sliding plate respectively, a groove is formed in the bottom of the sliding plate, a fixing assembly is arranged in the groove, and the push rod is fixed by the fixing assembly.

Further, the fixing assembly includes:

two threaded rods are respectively arranged on two sides of the groove body at the bottom of the sliding plate in a threaded mode, one end of each threaded rod is rotatably provided with an arc-shaped fixing plate, and the other end of each threaded rod is fixedly provided with a rotating handle.

Furthermore, two clamping plates are respectively arranged on two sides of the inner wall of the sleeve, and a spring is arranged between each clamping plate and the inner wall of the sleeve.

Further, outer wall bottom one side of barrel is provided with the disinfect box, the disinfect box has the water pump through water piping connection, the water pump leads to pipe intercommunication has atomizer, atomizer is located on the barrel inside wall.

Further, the barrel outer wall is provided with the observation window, hollow section of thick bamboo, sleeve and sampler barrel are transparent material, the label is pasted on the sampler barrel.

The blood sampling device provided by the invention has the following beneficial effects: in the device, the driving mechanism is started to drive the sleeve to move up and down in the hollow cylinder, so that the sampling cylinder is driven to move up and down in the sleeve, the sampling needle penetrates through an outlet on the cylinder body and moves to a blood sampling position for blood sampling, and after the blood sampling is finished, the driving mechanism drives the sampling cylinder to move up to retract the sampling needle into the cylinder body, so that the sampling needle is prevented from accidentally stabbing patients and medical personnel; when the sampling tube needs to be replaced, the servo motor drives the rotary table to rotate, so that the other sampling tube is positioned at the outlet to carry out blood sampling, the conversion is convenient, and the sanitation and the safety can be ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention and the design thereof, the drawings required for the embodiments will be briefly described below. The drawings in the following description are only some embodiments of the invention and it will be clear to a person skilled in the art that other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic view of the overall structure of a blood sampling device according to the present invention.

FIG. 2 is a schematic view of a pushing mechanism of the blood sampling device of the present invention.

Fig. 3 is a schematic structural diagram of a sampling cylinder and a rotary disk of the blood sampling device of the present invention.

FIG. 4 is a schematic view of a fixing assembly of the blood sampling device of the present invention.

Description of reference numerals:

1-cylinder, 2-cavity, 201-sliding plate, 202-moving block, 3-outlet, 4-hollow cylinder, 5-sleeve, 6-sampling cylinder, 7-rack, 8-push rod, 9-piston, 10-pushing motor, 11-screw, 12-driven gear, 13-driving gear, 14-rotating motor, 15-rotary table, 16-servo motor, 17-sampling needle, 18-outlet, 19-atomizing nozzle, 20-water pipe, 21-water pump, 22-disinfection box, 23-chute, 24-slide block, 25-spring, 26-clamping plate, 27-opening.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention and can practice the same, the present invention will be described in detail with reference to the accompanying drawings and specific examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. In the description of the present invention, unless otherwise specified, "a plurality" means two or more, and will not be described in detail herein.

The invention provides a blood sampling device, which is specifically shown in figure 1 and comprises a cylinder body 1, a rotary table 15 and a sampling cylinder 6.

As shown in fig. 1-4, in the present embodiment, the top of the cylinder 1 is provided with a moving outlet 18, and one side of the bottom is provided with an outlet 3; the servo motor 16 is arranged at the center of the bottom of the cylinder 1 through a bracket; the bottom of the rotary table 15 is in transmission connection with an output shaft of a servo motor 16, two hollow cylinders 4 penetrate through two sides of the rotary table 15, and a sleeve 5 is slidably arranged in each hollow cylinder 4; a sampling cylinder 6 is arranged in the sleeve 5, and the bottom of the sampling cylinder 6 is communicated with a sampling needle 17; and the driving mechanism is arranged on the rotating disc 15 and drives the two sleeves 5 to move up and down in opposite directions, so that the two sampling cylinders 6 are driven to move up and down in opposite directions. Through starting actuating mechanism, actuating mechanism drives the sleeve and reciprocates in hollow section of thick bamboo to drive the sampler barrel and reciprocate in the sleeve, make the sample probe pass the export on the barrel and remove blood sample department and carry out blood sample, after the blood sample is accomplished, actuating mechanism drives the sampler barrel and shifts up, with inside the sample probe retraction barrel, avoid the sample probe accident to stab patient and medical personnel. When needing to be changed the sampler barrel, servo motor drives the carousel and rotates, makes another sampler barrel be located the exit, carries out blood sample, and the conversion is convenient, can take a sample many times, and sampling efficiency is high.

Specifically, a sliding groove 23 is formed in one side wall, away from the opening 27, of the hollow cylinder 4, a sliding block 24 matched with the sliding groove 23 is arranged on one side wall, away from the rack 7, of the sleeve 5, a through hole is formed in one side of the sleeve 5, and the sampling needle 17 penetrates through the through hole to be opposite to the outlet 3. Two hollow cylinder 4 relative both sides wall all are equipped with opening 27, and actuating mechanism includes: the two racks 7 are respectively arranged on the side walls of the two sleeves 5, and the racks 7 are opposite to the opening 27; a rotating motor 14 is arranged at the center of the upper surface of the turntable 15 through a fixed frame; the driving gear 13 is in transmission connection with an output shaft of the rotating motor 14; two driven gears 12 are rotatably disposed above the rotary table 15 and respectively engaged with two sides of the driving gear 13, the other side of each driven gear 12 is engaged with the rack 7, and each driven gear 12 rotates in the opening 27. The outer wall of barrel is provided with the button, the button is connected with the rotation motor electricity, start the rotation motor, it rotates to drive the driving gear, the driving gear drives two driven gear rotations of left and right sides intermeshing, a driven gear drives the rack rebound on a sleeve, drive the sampler barrel rebound in the sleeve, thereby take out along the shift-out mouth with the sampler barrel after the blood sample is accomplished, carry out sample testing, then cup joint disposable sampler barrel again and carry out next sample, another driven gear drives the rack rebound on a sleeve, drive the sampler barrel rebound in the sleeve, pass the export with the sampling needle and remove blood sample department and take a sample, exchange in proper order and take a sample many times, improve sampling efficiency.

Specifically, a push rod 8 is slidably arranged in the sampling tube 6, a piston 9 is fixedly arranged at the bottom end of the push rod 8, and a pushing mechanism is connected to the top end of the piston in a transmission manner. The pushing mechanism comprises: the cavity 2 is arranged above the sampling cylinder 6, the cavity 2 penetrates out of the moving outlet 18, and sliding rails are arranged on two sides of the inner wall of the cavity 2; the pushing motor 10 is arranged at the top of the cavity; the screw rod 11 is in transmission connection with an output shaft of the pushing motor 10, a sliding plate 201 is connected to the screw rod 11 in a threaded mode, moving blocks 202 matched with the sliding rails are arranged on two sides of the sliding plate 201, a groove is formed in the bottom of the sliding plate 201, a fixing assembly is arranged in the groove, and the push rod 8 is fixed by the fixing assembly. Start driving motor, it rotates to drive the screw rod, drive the slide and reciprocate along the screw rod, drive the piston on the push rod and remove the sampler barrel bottom, discharge the air in the sampler barrel, then driving motor drives the sampler barrel and shifts up, carry out the blood sample, after the blood sample is accomplished, it shifts up to rotate the motor and drive the sampler barrel, with inside the sampling needle retraction barrel, avoid the unexpected patient and medical personnel of stabbing of sampling needle, still avoided the sampling needle to expose and suffer the pollution.

Specifically, two threaded rods 203 are respectively arranged on two sides of the groove body at the bottom of the sliding plate 201 in a threaded manner, one end of each threaded rod 203 is rotatably provided with an arc-shaped fixing plate 204, and the other end of each threaded rod 203 is fixedly provided with a rotating handle. The sampling tube is a disposable sterile material, and a pushing mechanism, a driving mechanism, a sleeve barrel, a turntable and the like which are matched with the disposable sampling tube are used for multiple times. Therefore, the pushing mechanism is used for connecting the sampling tube, and the push rod in the sampling tube is also connected with the sliding plate.

Specifically, two clamping plates 26 are respectively arranged on two sides of the inner wall of the sleeve 5, and a spring 25 is arranged between each clamping plate 26 and the inner wall of the sleeve 5. The splint can be fixed the sampler barrel, avoids rocking at the sampling in-process. The outer wall bottom one side of barrel 1 is provided with disinfect box 22, and disinfect box 22 has water pump 21 through water piping connection, and water pump 21 leads to pipe intercommunication has atomizer 19, and atomizer 19 is located the barrel 1 inside wall. Disinfectant is added into the disinfection box, the disinfectant is pumped to the atomizing nozzle by the water pump, and the sampling needle is disinfected by the atomizing nozzle for blood sampling.

Specifically, the outer wall of the barrel body 1 is provided with an observation window, the hollow barrel 4, the sleeve 5 and the sampling barrel 6 are made of transparent materials, and the sampling barrel 6 is pasted with a label. The observation window can observe the amount of blood sampling, and the label on the sampling tube avoids blood to obscure.

As shown in fig. 1-4, the working principle in this embodiment is as follows:

when the sampling needle is used, the disposable sampling tube is connected with the sliding plate, a push rod in the sampling tube is placed in a groove at the bottom of the sliding plate, the arc-shaped fixing plate is driven by a rotary threaded rod to tightly fix the push rod, the sampling tube is placed into the sleeve through the removal port, the sampling tube is fixed by a clamping plate in the sleeve, the driving gear and the two driven gears are driven to rotate by starting the rotating motor, the driven gears drive the racks on the sleeve to move up and down in the hollow tube, the sampling tube is driven to move up and down in the sleeve, the sampling needle penetrates through an outlet in the tube body to move to a blood sampling position, the pushing motor is started to drive the screw rod to rotate, the sliding plate is driven to move up and down along the screw rod, a piston on the push rod is driven to move to the bottom end of the sampling tube, air in the sampling tube is discharged, the pushing motor drives the sampling tube to move up to perform blood sampling, after the blood sampling is completed, the motor drives the sampling tube to move up, the sampling needle is retracted into the tube, the patient and medical personnel are prevented from being accidentally stabbed by the sampling needle, and pollution caused by the sampling needle is also avoided. When needing to be changed the sampler barrel, servo motor drives the carousel and rotates, makes another sampler barrel be located the exit, carries out blood sample, and the conversion is convenient, can take a sample many times, and sampling efficiency is high.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any simple modifications or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. A blood sampling device, comprising:

the top of the cylinder body (1) is provided with a moving outlet (18), and one side of the bottom of the cylinder body is provided with an outlet (3);

the servo motor (16) is arranged at the center of the bottom of the cylinder body (1) through a bracket;

the bottom of the rotary table (15) is in transmission connection with an output shaft of the servo motor (16), two hollow cylinders (4) penetrate through two sides of the rotary table (15), and a sleeve (5) is slidably arranged in each hollow cylinder (4);

a sampling cylinder (6) is arranged in the sleeve (5), and the bottom of the sampling cylinder (6) is communicated with a sampling needle (17);

and the driving mechanism is arranged on the turntable (15) and drives the two sleeves (5) to move up and down in opposite directions, so that the two sampling barrels (6) are driven to move up and down in opposite directions.

2. A blood sampling device according to claim 1, wherein a sliding groove (23) is formed in a side wall of the hollow cylinder (4) away from the opening (27), a sliding block (24) adapted to the sliding groove (23) is formed in a side wall of the sleeve (5) away from the rack (7), a through hole is formed in one side of the sleeve (5), and the sampling needle (17) passes through the through hole and faces the outlet (3).

3. A blood sampling device according to claim 1, wherein two opposite side walls of the hollow cartridge (4) are provided with openings (27), and the driving mechanism comprises:

the two racks (7) are respectively arranged on the side walls of the two sleeves (5), and the racks (7) are opposite to the opening (27);

the rotating motor (14) is arranged at the center of the upper surface of the turntable (15) through a fixed frame;

the driving gear (13) is in transmission connection with an output shaft of the rotating motor (14);

two driven gears (12), all rotate and locate the top of carousel (15), respectively with the both sides meshing of driving gear (13), every the opposite side of driven gear (12) with rack (7) meshing, every driven gear (12) are in opening (27) internal rotation.

4. A blood sampling device according to claim 1, characterized in that a push rod (8) is slidably disposed in the sampling tube (6), a piston (9) is fixedly disposed at the bottom end of the push rod (8), and a pushing mechanism is drivingly connected to the top end of the push rod.

5. A blood sampling device according to claim 4, wherein the pushing mechanism comprises:

the cavity (2) is arranged above the sampling cylinder (6), the cavity (2) penetrates through the moving outlet (18), and sliding rails are arranged on two sides of the inner wall of the cavity (2);

the pushing motor (10) is arranged at the top of the cavity (2);

the screw rod (11) is in transmission connection with an output shaft of the pushing motor (10), a sliding plate (201) is connected to the screw rod (11) in a threaded mode, moving blocks (202) matched with the sliding rails are arranged on two sides of the sliding plate (201) respectively, a groove is formed in the bottom of the sliding plate (201), a fixing assembly is arranged in the groove, and the push rod (8) is fixed by the fixing assembly.

6. A blood sampling device according to claim 5, wherein the securing assembly comprises:

two threaded rods (203), the screw thread setting is in respectively the cell body both sides of slide (201) bottom, every the one end of threaded rod (203) is rotated and is provided with arc fixed plate (204), and the other end is fixed and is provided with rotatory handle.

7. A blood sampling device according to claim 1, wherein two clamping plates (26) are arranged on either side of the inner wall of the sleeve (5), and a spring (25) is arranged between each clamping plate (26) and the inner wall of the sleeve (5).

8. A blood sampling device according to claim 1, characterized in that a disinfection box (22) is arranged at one side of the bottom of the outer wall of the cylinder (1), the disinfection box (22) is connected with a water pump (21) through a water pipe (20), the water pump (21) is communicated with an atomizing nozzle (19) through the water pipe (20), and the atomizing nozzle (19) is positioned on the inner side wall of the cylinder (1).

9. A blood sampling device according to claim 1, wherein the outer wall of the cylinder body (1) is provided with an observation window, the hollow cylinder (4), the sleeve (5) and the sampling cylinder (6) are all made of transparent materials, and the sampling cylinder (6) is adhered with a label.