CN113499116A

CN113499116A - Blood sampling auxiliary device

Info

Publication number: CN113499116A
Application number: CN202110924447.8A
Authority: CN
Inventors: 李林娟; 邹琴; 徐艳玲; 许辉琼; 刘霞; 叶显辉; 史宣琼; 王欣; 骆琴; 曾丽娟
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2021-10-15
Anticipated expiration: 2041-08-12
Also published as: CN113499116B

Abstract

The invention relates to the technical field of medical equipment, in particular to a blood sampling auxiliary device which comprises a base, a tightening seat and a hemostasis assembly. The tightening seat is arranged at one end of the base. The tightening seat is provided with a through hole for the arm to pass through. The tightening seat is provided with a tightening component for tightening the arm by matching with the through hole. The base is used for placing elbows. The hemostasis assembly comprises a winding wheel, an unwinding wheel and a pressing piece. The unwinding wheel is matched with the hemostatic tape roll. The winding wheel is used for winding the tourniquet of the tourniquet roll. The pressing piece is used for pressing the tourniquet to the arm. The patient's hand is passed through the aperture with the elbow resting above the base. The tightening assembly acts and tightens the arm. Therefore, the arm of the patient is fixed, and the arm is prevented from moving in the blood sampling process. After blood sampling is finished, the winding wheel and the square winding wheel act cooperatively, so that the tourniquet moves to the front end of the pressing piece. The tourniquet can be stuck to the puncture part of the arm by the action of the pressing piece, and then the hemostasis action is completed.

Description

Blood sampling auxiliary device

Technical Field

The invention relates to the technical field of medical equipment, in particular to a blood sampling auxiliary device.

Background

During the course of disease treatment, it is often necessary to take blood from a patient. The current blood collection methods typically use a pad and a tightening strap to assist in the blood collection process. In the blood sampling process, a doctor ties up the binding belt on the arm and then punctures to draw blood. And pressing a cotton swab to stop bleeding after the completion. Finally, the patient needs to press the cotton swab for a few minutes to stop bleeding. Therefore, various props are required to be prepared every time during blood collection, and doctors have more operation steps and low blood collection efficiency during blood collection.

Disclosure of Invention

The invention aims to provide a blood sampling auxiliary device which can assist blood sampling and further improve blood sampling efficiency.

The embodiment of the invention is realized by the following technical scheme:

a blood sampling auxiliary device comprises a base, a tightening seat and a hemostasis assembly; the tightening seat is arranged at one end of the base; the tightening seat is provided with a through hole for an arm to pass through; the tightening seat is provided with a tightening component of a tightening arm matched with the through hole; the base is used for placing an elbow; the hemostasis assembly comprises a winding wheel, an unwinding wheel and a pressing piece; the unwinding wheel is matched with the hemostatic tape roll; the winding wheel is used for winding the tourniquet of the tourniquet roll; the pressing piece is used for pressing the tourniquet to an arm.

Further, the tightening base comprises a shell, a rotating ring, a driving motor and a winding wheel, wherein the rotating ring, the driving motor and the winding wheel are arranged in the shell; the rotating ring is concentric with the through hole; the driving motor is connected with the rotating ring in a transmission manner; the reel is connected to the rotating ring; the reel is wound with an elastic rope; the other end of the elastic rope is connected to the bottom of the tightening seat; the hole wall of the through hole is provided with a wire passing groove for the elastic rope to pass through along the circumferential direction.

Further, a coil spring for winding the elastic rope is arranged inside the reel; a wire guide wheel and a tensioning assembly are arranged at a wire outlet of the reel; the tensioning assembly comprises a tensioning wheel, a tensioning rod and a tensioning spring; the tension rod is hinged to a wire outlet of the reel; the tensioning wheel is arranged at the other end of the tensioning rod; the tension spring is connected to the tension rod and the reel; the tension spring enables the tension wheel to approach the wire guide wheel; when the elastic rope moves to the outside of the reel, the tension pulley swings toward the wire guide pulley by the friction force of the elastic rope against the tension pulley.

Furthermore, guide convex rings are arranged on two sides of the rotating ring; the guide convex ring is concentric with the rotating ring; the shell is provided with a guide groove for accommodating the guide convex ring.

Further, the tourniquet comprises a tourniquet portion and a strap portion; the strip-shaped part is provided with an easy-to-tear line; the internal of the easy-tearing line is the hemostasis part.

Further, the hemostasis assembly also comprises a swinging seat and a lifting seat; the swinging seat is connected to one side of the tightening seat close to the base in a swinging mode; the pressing piece comprises a telescopic rod and a lifting motor; the upper end of the telescopic rod is arranged on the swinging seat in a telescopic manner, and the lower end of the telescopic rod is connected to the lifting seat in a telescopic manner; the lifting motor is arranged on the swinging seat and drives the telescopic rod to lift relative to the swinging seat; the winding wheel and the unwinding wheel are both arranged in the lifting seat and positioned at two sides of the telescopic rod; the lower part of the lifting seat is provided with a through hole for the telescopic rod to extend out.

Furthermore, one end of the telescopic rod, which is close to the lifting seat, is provided with two extrusion wheels; the two extrusion wheels are respectively connected to the telescopic rod through a swinging rod hinged to the telescopic rod; the two swinging rods are connected through an extension spring.

Furthermore, the lifting seat is also provided with a positioning lamp; the positioning lamp is matched with the extrusion wheel to be arranged, so that the extrusion position of the extrusion wheel is the same as the irradiation position of the positioning lamp.

Further, the swinging seat is connected to the tightening seat through a connecting rod; the connecting rods are provided with a plurality of connecting rods; two adjacent connecting rods are hinged; the two connecting rods at the two ends are respectively hinged to the tightening seat and the swinging seat.

Further, the swinging seat is connected with the connecting rod through a spherical hinge.

The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:

when the blood sampling auxiliary device is used, the hand of a patient passes through the through hole and enables the elbow to be placed above the base. At this time, the arm is accommodated in the through hole. The tightening assembly acts and tightens the arm. Therefore, the arm of the patient is fixed, and the arm is prevented from moving in the blood sampling process.

After blood sampling is finished, the winding wheel and the unwinding wheel act cooperatively, so that the tourniquet moves to the front end of the pressing piece. The tourniquet can be stuck to the puncture part of the arm by the action of the pressing piece, and then the hemostasis action is completed.

The blood sampling auxiliary device can tighten the arm of a patient and can automatically stop bleeding. Reduce two actions of tightening and stanching of the doctor, and then improve blood sampling efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a blood collection assisting device provided by the present invention;

FIG. 2 is an internal view of the tightening base;

FIG. 3 is an enlarged view taken at a in FIG. 2;

FIG. 4 is a view showing an internal structure of a hemostatic module;

FIG. 5 is a schematic view of the extrusion wheel extending out of the lifting base;

FIG. 6 is a schematic view of the structure of the tourniquet;

fig. 7 is a sectional view of the clinch holder.

Icon: 1-a tightening seat, 10-a thread-passing groove, 11-a passing hole, 12-a housing, 121-a guide groove, 13-a rotating ring, 131-a guide convex ring, 14-a driving motor, 15-a reel, 151-a guide wheel, 16-an elastic rope, 17-a tension wheel, 18-a tension rod, 19-a tension spring, 2-a base, 3-a hemostatic component, 31-a winding wheel, 32-a unwinding wheel, 33-a pressing piece, 331-a telescopic rod, 332-a lifting motor, 333-a squeezing wheel, 334-a swinging rod, 335-a tension spring, 4-a tourniquet, 41-a tourniquet, 411-a hemostatic part, 412-a ribbon part, 413-an easy-tear line, 5-a swinging seat, 6-a lifting seat, 61-a through hole, 7-connecting rod, 8-arm.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to 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.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1 to 7, the present invention provides a blood collection assisting device, which comprises a base 2, a binding base 1 and a hemostatic assembly 3. The tightening seat 1 is arranged at one end of the base 2. The cinch base 1 is provided with a through hole 11 through which the arm 8 passes. The base 2 is used for placing an elbow. When the arm 8 passes through the through hole 11 and is fixed to the blood sampling auxiliary device, the elbow is placed above the base 2 and the arm 8 is accommodated in the through hole 11. The tightening base 1 is provided with a tightening member for tightening the arm 8 in cooperation with the through hole 11. The hemostatic assembly 3 comprises a winding wheel 31, an unwinding wheel 32 and a pressing member 33. The unwinding wheel 32 is arranged in cooperation with the tourniquet roll 4. The winding wheel 31 is used for winding the tourniquet 41 of the tourniquet roll 4. The pressing member 33 is used to press the tourniquet 41 to the arm 8.

When the blood sampling auxiliary device is used, the hand of a patient passes through the through hole 11 and enables the elbow to be horizontally placed above the base 2. At this time, the arm 8 is accommodated in the through hole 11. The tightening assembly acts and tightens the arm 8. This also fixes the arm 8 of the patient and prevents the arm 8 from moving during blood sampling.

When blood collection is completed, the winding wheel 31 and the unwinding wheel 32 cooperate to move the tourniquet 41 to the front end of the pusher 33. The pressing member 33 is actuated to stick the tourniquet 41 to the punctured part of the arm 8, thereby completing the hemostasis operation.

The auxiliary blood sampling device can tighten the arm 8 of a patient and can automatically stop bleeding. Reduce two actions of tightening and stanching of the doctor, and then improve blood sampling efficiency.

In the present embodiment, the clinch holder 1 includes a housing 12, and a rotary ring 13, a drive motor 14, and a reel 15 provided inside the housing 12. The rotating ring 13 is concentric with the through hole 11. The driving motor 14 is drivingly connected to the rotating ring 13. Specifically, the driving motor 14 may be drivingly connected to the rotating ring 13 through a gear train. The reels 15 are connected to the rotating ring 13. The reels 15 wind elastic cords 16. The other end of the elastic cord 16 is connected to the bottom of the passage hole 11. The hole wall of the through hole 11 is provided with a line passing groove 10 along the circumferential direction for passing the elastic rope 16. The wire passage duct communicates the inside of the housing 12 and the inside of the passage hole 11 so that the elastic cord 16 can pass through the wire passage duct 10 from the inside of the housing 12 into the passage hole 11.

When the arm 8 is received in the through hole 11, the driving motor 14 drives the rotating ring 13 to rotate, so that the rotating ring 13 drives the reel 15 to rotate. This also causes the elastic cord 16 to be gradually pulled out from the reel 15. The elastic cord 16 extends through the slot into the aperture 11 and into contact with the arm 8. The reel 15 rotates one turn around the arm 8 to make the elastic cord 16 bind around the arm 8, thereby binding the arm 8.

In the present embodiment, a coil spring for winding the elastic cord 16 is provided inside the reel 15. When blood collection is completed, the driving motor 14 drives the rotating ring 13 to turn over, so that the reel 15 rotates back to the original position. In this process, the coil spring is restored and the elastic cord 16 is gradually stored inside the reel 15.

The outlets of the reels 15 are provided with a wire guide wheel 151 and a tensioning assembly. The tensioning assembly comprises a tensioning wheel 17, a tensioning rod 18 and a tensioning spring 19. The tension lever 18 is hinged to the outlet of the reel 15. The tension wheel 17 is provided at the other end of the tension rod 18. Tension spring 19 is connected to tension rod 18 and reel 15. The tension spring 19 brings the tension pulley 17 closer to the wire guide pulley 151. When the elastic cord 16 moves to the outside of the reel 15, the tension sheave 17 swings toward the line guide sheave 151 due to the friction force of the elastic cord 16 against the tension sheave 17. That is, during the process of pulling the elastic cord 16 out of the reel 15, the friction force causes the tension wheel 17 to abut against the side of the cord guiding wheel 151, so that the cord guiding wheel 151 and the tension wheel 17 clamp the elastic cord 16, and further, the force required for pulling the elastic cord 16 out is larger, and further, the elastic cord 16 is in a tensioned state during the process of pulling the elastic cord 16 out of the reel 15. This allows the elastic cord 16 to be placed under tension and then applied to the arm 8. The elastic cord 16 can tighten the arm 8 when it is wound around the arm 8. The elastic rope 16 is in a tensioning state and is attached to the arm 8, so that the tightening force applied to all parts of the arm 8 by the elastic rope 16 is the same, all parts of the arm 8 are uniformly stressed, and the comfort is stronger. Meanwhile, during the process of the elastic cord 16 entering the reel 15, the tension wheel 17 is away from the wire guide wheel 151 under the action of friction force, so that the elastic cord 16 can be tightened inside the reel 15.

Meanwhile, the tension spring 19 may be provided with a spring with adjustable elasticity, so that the tension degree of the elastic rope 16 can be adjusted, and finally the tightening degree of the arm 8 can be adjusted.

In this embodiment, the two sides of the rotating ring 13 are provided with guiding convex rings 131. The guide protrusion ring 131 is concentric with the rotation ring 13. The housing 12 is provided with a guide groove 121 receiving the guide protrusion ring 131. The guide protrusion ring 131 is restricted to the guide groove 121, so that the rotation ring 13 can only rotate along the guide groove 121. Thereby ensuring stability of the rotating ring 13.

In this embodiment, the tourniquet 41 comprises a tourniquet portion 411 and a strap portion 412. The strip 412 is provided with a tear line 413. The hemostatic part 411 is located inside the easy-to-tear line 413. When in use, the pressing member 33 pushes the hemostatic section 411, so that the hemostatic section 411 is separated from the band-shaped section 412 along the easy-tearing line 413. The hemostatic section 411 is attached to the puncture site by the pressing of the pressing tool 33, and hemostasis is performed. At the same time, the band 412 is gradually wound up by the winding wheel 31. The winding wheel 31 gradually pulls the next hemostatic section 411 to the pressing section by winding the belt-like section 412, and prepares for the next hemostatic operation.

In this embodiment, the hemostatic assembly 3 further includes a swing seat 5 and a lifting seat 6. The swing seat 5 is swingably connected to one side of the binding seat 1 close to the base 2. The pressing member 33 includes a telescopic rod 331 and a lifting motor 332. The upper end of the telescopic rod 331 is telescopically arranged on the swinging seat 5, and the lower end is telescopically connected with the lifting seat 6. The lifting motor 332 is provided in the swing base 5 and drives the telescopic rod 331 to lift and lower with respect to the swing base 5. Specifically, the telescopic rod 331 is provided with a transmission gear, and the lifting motor 332 is connected to the telescopic rod 331 through a gear engaged with the transmission gear. The winding wheel 31 and the unwinding wheel 32 are both arranged inside the lifting seat 6 and are positioned at two sides of the telescopic rod 331. The lower part of the lifting seat 6 is provided with a through hole 61 for the extension rod 331 to extend out.

During the use, lift motor 332 rotates and to drive telescopic link 331 and go up and down, and then makes telescopic link 331 drive lift seat 6 and go up and down. When the lifting seat 6 descends to the arm 8, the lifting seat 6 is blocked and cannot descend continuously. At this time, the telescopic rod 331 continues to descend, and the hemostatic section 411 pushes the arm 8 through the through hole 61, so that the hemostatic section 411 is adhered to the arm 8.

In this embodiment, two squeezing wheels 333 are disposed at one end of the telescopic rod 331 close to the lifting seat 6. The two squeezing wheels 333 are each connected to the telescopic bar 331 by a swinging bar 334 hinged to the telescopic bar 331. The two swing levers 334 are connected to each other by a tension spring 335.

When in use, the telescopic rod 331 pushes the extrusion wheel 333 to extend out of the lifting seat 6. The telescopic rod 331 is pushed continuously, and the two swinging rods 334 are opened towards two sides under the action of the pushing force, so that the two squeezing wheels 333 roll towards two sides gradually. This causes the pressing wheel 333 to gradually press the hemostatic section 411 toward both sides, thereby making the hemostatic section 411 better fit to the arm 8. In this process, the extension spring 335 is gradually extended. The elastic force thereof enables the pressing wheel 333 to maintain a state of pressing the arm 8, thereby ensuring the effect of the sticking.

In this embodiment, the lifting seat 6 is further provided with a positioning lamp. The position lamp is disposed in cooperation with the pressing wheel 333 such that the pressing position of the pressing wheel 333 is the same as the irradiation position of the position lamp. In use, the angle of the hemostatic assembly 3 is adjusted by the doctor, so that the positioning lamp irradiates the punctured part. Subsequently, the hemostatic section 411 can be attached to the puncture site by the operation of the telescopic rod 331. The position lamp can conveniently adjust the pasting position, facilitates the use.

In this embodiment, the swing base 5 is connected to the tightening base 1 via a connecting rod 7. The connecting rods 7 are provided in a plurality. Two adjacent connecting rods 7 are hinged. Two connecting rods 7 at two ends are respectively hinged with the binding seat 1 and the swinging seat 5. Each hinged part of the connecting rod 7 is provided with a damping part, so that the current state can be kept after the angle between the connecting rods 7 is adjusted. The swing seat 5 is connected with the connecting rod 7 through a spherical hinge.

This arrangement allows the hemostatic assembly 3 to adjust not only the direction, but also the distance that the hemostatic assembly 3 extends, allowing the hemostatic assembly 3 to cover more locations.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A blood sampling auxiliary device which is characterized in that: comprises a base (2), a tightening seat (1) and a hemostatic component (3); the tightening seat (1) is arranged at one end of the base (2); the tightening seat (1) is provided with a through hole (11) for an arm (8) to pass through; the tightening seat (1) is provided with a tightening component for tightening an arm (8) by matching with the through hole (11); the base (2) is used for placing an elbow; the hemostasis assembly (3) comprises a winding wheel (31), an unwinding wheel (32) and a pressing piece (33); the unwinding wheel (32) is matched with the hemostatic tape roll (4) for arrangement; the winding wheel (31) is used for winding a tourniquet (41) of the tourniquet roll (4); the pressing piece (33) is used for pressing the tourniquet (41) to an arm (8).

2. The blood collection assist device of claim 1, wherein: the tightening seat (1) comprises a shell (12), a rotating ring (13) arranged in the shell (12), a driving motor (14) and a winding wheel (15); said rotating ring (13) being concentric with said passing hole (11); the driving motor (14) is in transmission connection with the rotating ring (13); the reel (15) is provided to the rotating ring (13); the reel (15) is wound with an elastic rope (16); the other end of the elastic rope (16) is connected to the bottom of the tightening seat (1); the hole wall of the through hole (11) is provided with a thread passing groove (10) for the elastic rope (16) to pass through along the circumferential direction.

3. The blood collection assist device of claim 2, wherein: a coil spring for winding the elastic rope (16) is arranged in the reel (15); the wire outlet of the winding wheel (15) is provided with a wire guide wheel (151) and a tensioning assembly; the tensioning assembly comprises a tensioning wheel (17), a tensioning rod (18) and a tensioning spring (19); the tension rod (18) is hinged to the outlet of the reel (15); the tensioning wheel (17) is arranged at the other end of the tensioning rod (18); the tension spring (19) is connected to the tension rod (18) and to a reel (15); the tension spring (19) enables the tension wheel (17) to approach the wire guide wheel (151); when the elastic cord (16) moves to the outside of the reel (15), the tension pulley (17) is swung toward the thread guide pulley (151) by the frictional force of the elastic cord (16) against the tension pulley (17).

4. The blood collection assist device of claim 2, wherein: guide convex rings (131) are arranged on the two sides of the rotating ring (13); the guide convex ring (131) is concentric with the rotating ring (13); the housing (12) is provided with a guide groove (121) accommodating the guide convex ring (131).

5. The blood collection assist device of claim 1, wherein: the tourniquet (41) comprises a tourniquet portion (411) and a band portion (412); the strip-shaped part (412) is provided with an easy-to-tear line (413); the hemostatic part (411) is arranged inside the easy-tearing line (413).

6. The lancing aid of claim 5, wherein: the hemostasis assembly (3) further comprises a swinging seat (5) and a lifting seat (6); the swinging seat (5) is connected to one side, close to the base (2), of the tightening seat (1) in a swinging mode; the pressing piece (33) comprises a telescopic rod (331) and a lifting motor (332); the upper end of the telescopic rod (331) is arranged on the swinging seat (5) in a telescopic manner, and the lower end of the telescopic rod is connected to the lifting seat (6) in a telescopic manner; the lifting motor (332) is arranged on the swinging seat (5) and drives the telescopic rod (331) to lift relative to the swinging seat (5); the winding wheel (31) and the unwinding wheel (32) are both arranged in the lifting seat (6) and are positioned at two sides of the telescopic rod (331); the lower part of the lifting seat (6) is provided with a through hole (61) for the telescopic rod (331) to extend out.

7. The blood collection assist device of claim 6, wherein: one end of the telescopic rod (331) close to the lifting seat (6) is provided with two squeezing wheels (333); the two squeezing wheels (333) are respectively connected to the telescopic rod (331) through a swinging rod (334) hinged to the telescopic rod (331); the two swinging rods (334) are connected through an extension spring (335).

8. The lancing aid of claim 7, wherein: the lifting seat (6) is also provided with a positioning lamp; the positioning lamp is arranged in a manner of being matched with the pressing wheel (333) so that the pressing position of the pressing wheel (333) is the same as the irradiation position of the positioning lamp.

9. The blood collection assist device of claim 8, wherein: the swinging seat (5) is connected to the tightening seat (1) through a connecting rod (7); a plurality of connecting rods (7) are arranged; two adjacent connecting rods (7) are hinged; the two connecting rods (7) at the two ends are respectively hinged to the tightening seat (1) and the swinging seat (5).

10. The blood collection assist device of claim 9, wherein: the swing seat (5) is connected with the connecting rod (7) through a spherical hinge.