An invasive blood pressure sensor blood sampling device capable of quickly drawing blood

Abstract

The present invention relates to the technical field of invasive blood pressure sensor blood collection, and discloses an invasive blood pressure sensor blood collection device capable of quickly drawing blood, including a blood collection component. The blood collection component includes a syringe. A piston is arranged inside the syringe. A sealing gasket is fixedly connected to the surface of the piston. A pull rod is fixedly connected to the surface of the piston. A connecting pipe is communicated with the surface of the syringe. A limiting ring is fixedly connected to the surface of the syringe. A circular groove elastic plate is fixedly connected to the bottom of the limiting ring. A blood transmission pipe is arranged inside the circular groove elastic plate. In the present invention, the connecting blood vessel can be connected to the patient's blood vessel. Before blood sample collection, turning the handle drives the rotary plug to rotate, so that the connecting blood vessel can be communicated with the elbow pipe. The elbow pipe is communicated with the connecting pipe through the rotary plug. By pushing the piston and the sealing gasket to move inside the syringe through the pull rod, the negative pressure generated by the piston will be transmitted to the inside of the connecting blood vessel through the communication between the connecting pipe and the elbow pipe to perform blood collection treatment on the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of invasive blood pressure sensor blood collection, and specifically relates to an invasive blood pressure sensor blood collection device capable of quickly drawing blood. Background Technique

[0002] Invasive blood pressure sensor blood collection actually refers to invasive arterial blood pressure monitoring, which is a method of directly inserting a catheter into an artery and connecting a sensor to a monitoring device to measure blood pressure in real time and accurately. Invasive blood pressure sensor blood collection, that is, invasive arterial blood pressure monitoring, is an accurate and real-time blood pressure measurement method, especially suitable for critically ill patients and surgical patients who need precise blood pressure monitoring;

[0003] Currently, when sampling and drawing blood from a patient, medical staff need to connect the blood pressure sensor blood collection device to the blood vessel inserted into the patient's body. The current blood collection method requires medical staff to pull the blood collection device to generate negative pressure, and the negative pressure can draw the patient's blood into the interior of the blood collection device for sampling. When the blood collection device is in use, the patient needs to push it to move slowly. However, if the force used when the blood collection device is in use is slightly too large, it will cause the device to move too fast, and the blood collection device moving too fast easily causes discomfort to the patient during blood collection. Summary of the Invention

[0004] The purpose of the present invention is to provide an invasive blood pressure sensor blood collection device capable of quickly drawing blood to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention is an invasive blood pressure sensor blood collection device capable of quickly drawing blood, including a blood collection component. The blood collection component includes a syringe. A piston is arranged inside the syringe. A sealing gasket is fixedly connected to the surface of the piston. A pull rod is fixedly connected to the surface of the piston. A connecting pipe is communicated with the surface of the syringe. A limiting ring is fixedly connected to the surface of the syringe. A circular groove elastic plate is fixedly connected to the bottom of the limiting ring. A blood transmission pipe is arranged inside the circular groove elastic plate. A bent pipe is arranged at the top of the blood transmission pipe. A connecting blood vessel is arranged at the end of the bent pipe far away from the blood transmission pipe. Three-way valve components are respectively arranged at the ends where the connecting blood vessel and the bent pipe are close to each other and where the bent pipe and the blood transmission pipe are close to each other. An adjusting component is arranged on the surface of the syringe. A positioning component is arranged on the surface of the syringe.

[0007] Further, the three-way valve component includes a valve body. A cylindrical pipe is communicated with the surface of the valve body. A plug is rotatably connected to the inner wall of the valve body. A through hole is opened on the surface of the plug. A handle is fixedly connected to the top of the plug.

[0008] Further, the surface of the gasket contacts the inner wall of the syringe. The end of the pull rod away from the piston extends to the outer end of the syringe. There are two circular groove elastic plates, and the two circular groove elastic plates are symmetrically arranged with the blood transmission tube as the center.

[0009] Further, three cylindrical tubes are arranged on the surface of the valve body. The three cylindrical tubes are arranged in a T shape. Three through holes are opened on the surface of the plug, and the three through holes are adapted to the cylindrical tubes.

[0010] Further, one end of the connecting blood vessel and the elbow pipe close to each other is sleeved on the surface of the cylindrical tube. One end of the elbow pipe and the blood transmission tube close to each other is sleeved on the surface of the cylindrical tube. The end of the connecting pipe away from the syringe is sleeved on the surface of the cylindrical tube.

[0011] Further, the adjusting component includes a rotating ring. The inner wall of the rotating ring is rotatably connected to the surface of the syringe. A synchronous ring is fixedly connected to the surface of the rotating ring. A groove rubber ring is fixedly connected to the surface of the synchronous ring. A telescopic frame is fixedly connected to the surface of the rotating ring. One end of the telescopic frame away from the rotating ring is fixedly connected with a threaded hole rod, and a elastic piece is fixedly connected to the surface of the telescopic frame.

[0012] Further, one end of the telescopic frame away from the rotating ring extends to the outer end of the syringe. The inner wall of the threaded hole rod is threadedly connected to the surface of the pull rod.

[0013] Further, the positioning component includes a grip rod. The bottom of the grip rod is fixedly connected to the top of the limit ring. A rubber rod is fixedly connected to the surface of the grip rod. One end of the grip rod away from the limit ring is fixedly connected with a fixed rod. A cross rod is fixedly connected to the bottom of the fixed rod. A cross hole is opened at one end of the pull rod away from the piston.

[0014] Further, one end of the grip rod away from the limit ring extends above the syringe. One end of the fixed rod away from the grip rod extends to the center of the end of the syringe. The surface of the cross rod is slidably connected to the inner wall of the cross hole.

[0015] The present invention has the following beneficial effects:

[0016] The blood vessel connecting part of the present invention can be connected to the blood vessels of a patient. Before blood sample collection, turning the handle drives the rotation of the cock, so that the connecting blood vessel can communicate with the elbow tube. The elbow tube is connected to the connecting tube through the cock. By pushing the piston and the sealing gasket to move inside the syringe with a pull rod, the negative pressure generated by the piston will be transmitted to the inside of the connecting blood vessel through the connection between the connecting tube and the elbow tube to collect blood from the patient. Once the blood is drawn out, turning the handle drives the rotation of the cock, and the cock rotates to a position parallel to the connecting blood vessel to close it, which can further ensure that the collected blood sample is from the patient rather than from the blood reservoir. By turning the cock with the handle again, the connecting tube is sealed by the cock, and at this time, the collected blood can be stored inside the syringe to complete the sampling.

[0017] When it is necessary to push the pull rod to move towards the outer end of the syringe in the present invention, turning the groove rubber ring of the push groove drives the rotation of the groove rubber ring. When the groove rubber ring rotates, it drives the telescopic frame to rotate through the connection between the synchronous ring and the rotating ring. When the telescopic frame rotates, it drives the threaded hole rod to rotate. Since the threaded hole rod is threadedly connected to the pull rod, when the threaded hole rod rotates, it can push the pull rod to move towards the outer end of the syringe, and drive the piston to generate negative pressure to collect the blood sample of the patient. The threaded driving method can pull the pull rod to move through the rotation speed of the threaded hole rod, avoiding the pull rod moving too fast due to excessive force during movement, which may cause discomfort in the blood collection of the patient. Turning the rotating ring can make the pull rod move slowly towards the outer end of the syringe, improving the stability of the pull rod during movement.

[0018] The present invention is provided with a grip rod on the top of the limit ring. When medical staff move the syringe, they can hold it through the grip rod. The fixed rod fixes the cross rod through the grip rod. The surface of the cross rod contacts the inner wall of the cross hole in the pull rod, and the cross rod is used to limit it, improving the stability of the pull rod during movement. When it is necessary to clean the syringe, the connecting tube, the elbow tube and the connecting blood vessel, the telescopic frame can be directly pulled to extend downward and contract inward. When the telescopic frame reciprocates, it drives the pull rod and the piston to move inside the syringe through the threaded hole rod. The rapid movement of the piston inside the syringe can push the flushing liquid to flow inside the syringe, the connecting tube, the elbow tube and the connecting blood vessel and flush their interiors.

[0019] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 This is the overall structural schematic diagram of the present invention;

[0022] Figure 2 This is the overall structural schematic diagram of the blood collection component of the present invention;

[0023] Figure 3 This is the overall structural schematic diagram of the three-way valve component of the present invention;

[0024] Figure 4 This is the overall structural schematic diagram of the adjustment component of the present invention;

[0025] Figure 5 This is another structural schematic diagram of the adjustment component of the present invention;

[0026] Figure 6 This is the overall structural schematic diagram of the positioning component of the present invention;

[0027] Figure 7 This is the present invention Figure 6 The enlarged schematic diagram of part A in.

[0028] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0029] In the figure: 1. Blood collection component; 2. Three-way valve component; 3. Adjustment component; 4. Positioning component; 10. Connecting blood vessel; 11. Elbow pipe; 12. Piston; 13. Limiting ring; 14. Pull rod; 15. Syringe; 16. Circular groove elastic plate; 17. Blood transmission pipe; 18. Sealing gasket; 19. Connecting pipe; 20. Valve body; 21. Cylindrical pipe; 22. Handle; 23. Plug; 24. Through hole; 30. Synchronous ring; 31. Rotating ring; 32. Grooved rubber ring; 33. Telescopic frame; 34. Threaded hole rod; 35. Elastic sheet; 40. Holding rod; 41. Rubber rod; 42. Fixed rod; 43. Cross rod; 44. Cross hole. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1 - 7As shown in the figure, the present invention is an invasive blood pressure sensor blood collection device that can quickly draw blood, including a blood collection component 1. The blood collection component 1 includes a syringe 15. Inside the syringe 15, there is a piston 12. A sealing gasket 18 is fixedly connected to the surface of the piston 12. A pull rod 14 is fixedly connected to the surface of the piston 12. A connecting tube 19 is communicated with the surface of the syringe 15. A limiting ring 13 is fixedly connected to the surface of the syringe 15. A circular groove elastic plate 16 is fixedly connected to the bottom of the limiting ring 13. Inside the circular groove elastic plate 16, there is a blood transmission tube 17. A bent tube 11 is arranged at the top of the blood transmission tube 17. At one end of the bent tube 11 away from the blood transmission tube 17, there is a connecting blood vessel 10. Three-way valve components 2 are respectively arranged at one end where the connecting blood vessel 10 and the bent tube 11 are close to each other and at one end where the bent tube 11 and the blood transmission tube 17 are close to each other. An adjusting component 3 is arranged on the surface of the syringe 15. A positioning component 4 is arranged on the surface of the syringe 15.

[0032] The three-way valve component 2 includes a valve body 20. A cylindrical tube 21 is communicated with the surface of the valve body 20. A plug 23 is rotatably connected to the inner wall of the valve body 20. A through hole 24 is opened on the surface of the plug 23. A handle 22 is fixedly connected to the top of the plug 23.

[0033] The surface of the sealing gasket 18 contacts the inner wall of the syringe 15. The connecting blood vessel 10 of the present invention can be connected to the blood vessel of the patient. Before blood sample collection, turn the handle 22 to drive the plug 23 to rotate, so that the connecting blood vessel 10 can be communicated with the bent tube 11. The bent tube 11 is communicated with the connecting tube 19 through the plug 23. Push the piston 12 and the sealing gasket 18 to move inside the syringe 15 through the pull rod 14. The negative pressure generated by the piston 12 will be transmitted to the inside of the connecting blood vessel 10 through the communication between the connecting tube 19 and the bent tube 11 to collect blood from the patient. Once the blood is drawn, turn the handle 22 to drive the plug 23 to rotate. The plug 23 rotates to a position parallel to the connecting blood vessel 10 to close it, so as to further ensure that the collected blood sample is from the patient, rather than from the blood storage device. Then, turn the plug 23 to rotate through the handle 22, and seal the connecting tube 19 through the plug 23. At this time, the collected blood can be stored inside the syringe 15 to complete the sampling. One end of the pull rod 14 away from the piston 12 extends to the outside of the syringe 15. The number of circular groove elastic plates 16 is two, and the two circular groove elastic plates 16 are symmetrically arranged with the blood transmission tube 17 as the center.

[0034] Three cylindrical tubes 21 are arranged on the surface of the valve body 20. The three cylindrical tubes 21 are arranged in a T shape. Three through holes 24 are opened on the surface of the plug 23, and the three through holes 24 are adapted to the cylindrical tubes 21.

[0035] One end of the connecting blood vessel 10 and the elbow pipe 11 close to each other is sleeved on the surface of the cylindrical pipe 21. One end of the elbow pipe 11 and the blood transmission pipe 17 close to each other is sleeved on the surface of the cylindrical pipe 21. One end of the connecting pipe 19 far from the syringe 15 is sleeved on the surface of the cylindrical pipe 21.

[0036] The adjusting member 3 includes a rotating ring 31. The inner wall of the rotating ring 31 is rotatably connected to the surface of the syringe 15. A synchronous ring 30 is fixedly connected to the surface of the rotating ring 31. A groove rubber ring 32 is fixedly connected to the surface of the synchronous ring 30. A telescopic frame 33 is fixedly connected to the surface of the rotating ring 31. One end of the telescopic frame 33 far from the rotating ring 31 is fixedly connected to a threaded hole rod 34. A spring piece 35 is fixedly connected to the surface of the telescopic frame 33.

[0037] One end of the telescopic frame 33 far from the rotating ring 31 extends to the outer end of the syringe 15. When the present invention needs to push the pull rod 14 to move towards the outer end of the syringe 15, the groove rubber ring 32 is pushed to rotate. When the groove rubber ring 32 rotates, it will drive the telescopic frame 33 to rotate through the connection between the synchronous ring 30 and the rotating ring 31. When the telescopic frame 33 rotates, it drives the threaded hole rod 34 to rotate. The threaded hole rod 34 is threadedly connected to the pull rod 14. When the threaded hole rod 34 rotates, it can push the pull rod 14 to move towards the outer end of the syringe 15, and push the piston 12 to generate negative pressure to collect the blood sample of the patient. The threaded driving method can pull the pull rod 14 to move through the rotation speed of the threaded hole rod 34, avoiding the pull rod 14 moving too fast due to excessive force during movement, causing discomfort in the blood collection of the patient. Pushing the rotating ring 31 to rotate can make the pull rod 14 slowly move towards the outer end of the syringe 15, improving the stability of the pull rod 14 during movement. The inner wall of the threaded hole rod 34 is threadedly connected to the surface of the pull rod 14.

[0038] The positioning member 4 includes a grip rod 40. The bottom of the grip rod 40 is fixedly connected to the top of the limiting ring 13. A rubber rod 41 is fixedly connected to the surface of the grip rod 40. One end of the grip rod 40 far from the limiting ring 13 is fixedly connected to a fixing rod 42. A cross rod 43 is fixedly connected to the bottom of the fixing rod 42. A cross hole 44 is opened at one end of the pull rod 14 far from the piston 12.

[0039] One end of the grip rod 40 away from the limit ring 13 extends above the syringe 15. In the present invention, a grip rod 40 is provided at the top of the limit ring 13. When medical staff move the syringe 15, they can hold it through the grip rod 40. The fixing rod 42 fixes the cross rod 43 through the grip rod 40. The surface of the cross rod 43 contacts the inner wall of the cross hole 44 in the pull rod 14, and the cross rod 43 is used to limit it, improving the stability of the pull rod 14 during movement. When it is necessary to clean the syringe 15, the connecting tube 19, the elbow tube 11 and the connecting blood vessel 10, the telescopic frame 33 can be directly pulled to extend downward and contract inward. When the telescopic frame 33 reciprocates, it drives the pull rod 14 and the piston 12 to move inside the syringe 15 through the screw hole rod 34. The rapid movement of the piston 12 inside the syringe 15 can push the flushing liquid to flow inside the syringe 15, the connecting tube 19, the elbow tube 11 and the connecting blood vessel 10 and flush their interiors. One end of the fixing rod 42 away from the grip rod 40 extends to the center of the end of the syringe 15, and the surface of the cross rod 43 is slidably connected to the inner wall of the cross hole 44.

[0040] During use, the connecting blood vessel 10 can be connected to the patient's blood vessel. Before blood sample collection, turn the handle 22 to drive the rotation of the cock 23, so that the connecting blood vessel 10 can communicate with the elbow pipe 11. The elbow pipe 11 is connected to the connecting pipe 19 through the cock 23. Push the piston 12 and the gasket 18 to move inside the syringe 15 through the pull rod 14. The negative pressure generated by the piston 12 will be transmitted to the inside of the connecting blood vessel 10 through the connection between the connecting pipe 19 and the elbow pipe 11 to collect blood from the patient. Once the blood is drawn, turn the handle 22 to drive the rotation of the cock 23, and the cock 23 rotates to a position parallel to the connecting blood vessel 10 to close it, so as to further ensure that the collected blood sample is from the patient, rather than from the blood reservoir. Then, turn the cock 23 by twisting the handle 22 to seal the connecting pipe 19. At this time, the collected blood can be stored inside the syringe 15 to complete the sampling. When it is necessary to push the pull rod 14 to move towards the outer end of the syringe 15, turn the groove rubber ring 32. When the groove rubber ring 32 rotates, it will drive the telescopic frame 33 to rotate through the connection between the synchronous ring 30 and the rotating ring 31. When the telescopic frame 33 rotates, it drives the screw hole rod 34 to rotate. Since the screw hole rod 34 is threadedly connected to the pull rod 14, the screw hole rod 34 can push the pull rod 14 to move towards the outer end of the syringe 15 when it rotates, and push the piston 12 to generate negative pressure to collect the patient's blood sample. The threaded driving method can pull the pull rod 14 to move through the rotation speed of the screw hole rod 34, avoiding the pull rod 14 moving too fast due to excessive force during movement, causing discomfort in the patient's blood collection. Pushing the rotating ring 31 to rotate can make the pull rod 14 move slowly towards the outer end of the syringe 15, improving the stability of the pull rod 14 during movement. A grip rod 40 is provided on the top of the limit ring 13. When medical staff move the syringe 15, they can hold it through the grip rod 40. The fixing rod 42 fixes the cross rod 43 through the grip rod 40. The surface of the cross rod 43 contacts the inner wall of the cross hole 44 in the pull rod 14, and the cross rod 43 is used to limit it to improve the stability of the pull rod 14 during movement. When it is necessary to clean the syringe 15, the connecting pipe 19, the elbow pipe 11 and the connecting blood vessel 10, directly pull the telescopic frame 33 to extend downward and contract inward. When the telescopic frame 33 reciprocates, it drives the pull rod 14 and the piston 12 to move inside the syringe 15 through the screw hole rod 34. The rapid movement of the piston 12 inside the syringe 15 can push the flushing liquid to flow inside the syringe 15, the connecting pipe 19, the elbow pipe 11 and the connecting blood vessel 10 and flush their interiors.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An invasive blood pressure sensor blood sampling device capable of rapidly drawing blood, comprising a blood sampling component (1), characterized in that: The blood sampling component (1) comprises a syringe (15), a piston (12) is arranged inside the syringe (15), a sealing gasket (18) is fixedly connected to the surface of the piston (12), a pull rod (14) is fixedly connected to the surface of the piston (12), a connecting tube (19) is connected to the surface of the syringe (15), a limiting ring (13) is fixedly connected to the surface of the syringe (15), a circular groove spring plate (16) is fixedly connected to the bottom of the limiting ring (13), and the circular groove spring plate (16) is arranged inside A blood transmission tube (17) is provided, a curved tube (11) is provided at the top of the blood transmission tube (17), a connecting blood vessel (10) is provided at one end of the curved tube (11) away from the blood transmission tube (17), a three-way valve component (2) is provided at one end of the connecting blood vessel (10) and the curved tube (11) close to each other and at one end of the curved tube (11) and the blood transmission tube (17) close to each other, respectively, an adjusting component (3) is provided on the surface of the syringe (15), and a positioning component (4) is provided on the surface of the syringe (15); The adjusting component (3) comprises a rotating ring (31), the inner wall of the rotating ring (31) is rotatably connected to the surface of the syringe (15), the surface of the rotating ring (31) is fixedly connected to a synchronizing ring (30), the surface of the synchronizing ring (30) is fixedly connected to a grooved rubber ring (32), the surface of the rotating ring (31) is fixedly connected to a telescopic frame (33), one end of the telescopic frame (33) away from the rotating ring (31) is fixedly connected to a screw hole rod (34), and the surface of the telescopic frame (33) is fixedly connected to a spring sheet (35); The positioning component (4) comprises a gripping rod (40), the bottom of the gripping rod (40) is fixedly connected to the top of the limiting ring (13), a rubber rod (41) is fixedly connected to the surface of the gripping rod (40), an end of the gripping rod (40) away from the limiting ring (13) is fixedly connected to a fixing rod (42), the bottom of the fixing rod (42) is fixedly connected to a cross rod (43), and a cross hole (44) is formed at one end of the pull rod (14) away from the piston (12).

2. The invasive blood pressure sensor blood sampling device capable of rapid blood drawing according to claim 1, characterized in that: The three-way valve component (2) comprises a valve body (20), the surface of the valve body (20) is connected to a cylindrical tube (21), the inner wall of the valve body (20) is rotatably connected to a plug (23), the surface of the plug (23) is provided with a through hole (24), and the top of the plug (23) is fixedly connected to a handle (22).

3. The invasive blood pressure sensor blood sampling device capable of rapid blood drawing according to claim 2, characterized in that: The surface of the sealing gasket (18) contacts the inner wall of the syringe (15), and the end of the pull rod (14) away from the piston (12) extends to the outer end of the syringe (15). The number of the circular groove spring plates (16) is two, and the two circular groove spring plates (16) are symmetrically arranged with the blood transmission tube (17) as the center.

4. The invasive blood pressure sensor blood sampling device capable of rapid blood drawing according to claim 3, characterized in that: The surface of the valve body (20) is provided with three cylindrical tubes (21), the three cylindrical tubes (21) are arranged in a T-shape, and the surface of the stopcock (23) is provided with three through holes (24), the three through holes (24) and the cylindrical tubes (21) are adapted to each other.

5. The invasive blood pressure sensor blood sampling device capable of rapid blood drawing according to claim 4, characterized in that: The ends of the connecting blood vessel (10) and the curved tube (11) that are close to each other are sleeved on the surface of the cylindrical tube (21), the ends of the curved tube (11) and the blood transmission tube (17) that are close to each other are sleeved on the surface of the cylindrical tube (21), and the end of the connecting tube (19) that is away from the syringe (15) is sleeved on the surface of the cylindrical tube (21).

6. The invasive blood pressure sensor blood sampling device capable of rapid blood drawing according to claim 5, characterized in that: One end of the telescopic frame (33) away from the rotating ring (31) extends to the outer end of the syringe (15), and the inner wall of the screw hole rod (34) is threadedly connected to the surface of the pull rod (14).

7. The invasive blood pressure sensor blood sampling device capable of rapid blood drawing according to claim 6, characterized in that: One end of the gripping rod (40) away from the limiting ring (13) extends to the top of the syringe (15), one end of the fixing rod (42) away from the gripping rod (40) extends to the end center of the syringe (15), and the surface of the cross rod (43) is slidably connected to the inner wall of the cross hole (44).

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