Automatic blood drawing storage instrument

Abstract

The utility model relates to the technical field of medical instruments, and discloses an automatic blood drawing storage instrument which comprises a blood drawing assembly arranged on a storage frame, a positioning frame is arranged on the outer side wall, close to a push plate, of the storage frame, a limiting rod is arranged on the positioning frame and extends into the positioning frame, a limiting plate is arranged in the positioning frame, the limiting rod penetrates through the limiting plate, and the limiting rod penetrates through the limiting plate. The limiting rod is sleeved with the first spring, the blind hole is formed outside the storage frame, the scale marks are arranged outside the storage frame, and the rebound mechanism is arranged in the storage frame. When a push plate is moved to a proper height, a medical worker loosens a limiting rod, due to the fact that when the limiting rod is pulled outwards, the limiting plate is driven to be pulled outwards, and then a first spring is extruded, after the limiting rod is not pulled continuously, the elastic force of the first spring pushes the limiting plate and the limiting rod to the direction of a blind hole till one end of the limiting rod is inserted into the blind hole, and then the limiting rod is pushed to the blind hole. The positioning frame and the push plate are positioned and fixed, and the accuracy is high.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an automatic blood drawing and storage instrument. Background Art

[0002] With the development of medicine, people pay more and more attention to the prevention of diseases. However, people will inevitably get sick. When patients undergo physical examinations, they need to undergo basic blood tests, namely blood routine tests, so that they can guide medication treatment based on the patient's blood routine and determine whether the patient is suitable for some invasive examinations. Blood drawing and testing is a very common examination method. At present, most blood collection methods use a syringe to draw blood and then inject it into a test tube.

[0003] In the prior art, blood is manually drawn into a needle tube when drawing blood from a patient. However, since the amount of blood drawn by the needle tube is manually controlled, it is not convenient to accurately control the amount of blood drawn, and the piston disk in the needle tube needs to be moved by pulling a pull rod by hand, which takes a long time to operate and is not conducive to improving the efficiency of blood drawing by medical staff. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides an automatic blood drawing and storage instrument, which has the advantage of quantitative blood drawing and solves the problem that the blood drawing amount cannot be accurately controlled and blood drawing is performed manually, which is relatively complicated in the prior art.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an automatic blood collection and storage instrument, comprising a main body component, the main body component comprising:

[0008] a storage frame on which a needle tube is disposed;

[0009] A piston disk is arranged on the inner wall of the needle tube;

[0010] A pull rod, arranged at the bottom of the piston disc;

[0011] A push plate, arranged at one end of the pull rod;

[0012] A through slot, arranged on the outer side wall of the storage frame;

[0013] The storage frame is provided with a blood drawing component, and the blood drawing component comprises:

[0014] A positioning frame, arranged on an outer side wall of the storage frame close to the push plate;

[0015] A limiting rod is arranged on the positioning frame, and the limiting rod extends into the interior of the positioning frame;

[0016] A limiting plate is arranged inside the positioning frame, and the limiting rod passes through the limiting plate;

[0017] Spring 1, sleeved on the outside of the limiting rod;

[0018] A blind hole, arranged outside the storage frame;

[0019] A scale line is arranged outside the storage frame;

[0020] The rebound mechanism is arranged inside the storage frame.

[0021] In some embodiments, the positioning frame is in close contact with the scale line.

[0022] In some embodiments, the blind hole is provided in multiple locations.

[0023] In some embodiments, one end of the limiting rod close to the blind hole is a slope.

[0024] In some embodiments, the rebound mechanism comprises:

[0025] A frame body, arranged inside the storage frame;

[0026] Spring 2, arranged on the inner bottom surface of the frame;

[0027] A pull plate is arranged on the top of the second spring, and the pull plate is fixedly connected to the bottom end of the pull rod. In some embodiments, the second spring is always in a stretched state.

[0028] In some embodiments, a friction pad is provided on the inner wall of the frame.

[0029] In some embodiments, a guide rail guard is disposed in the through slot.

[0030] (III) Beneficial effects

[0031] Compared with the prior art, the utility model provides an automatic blood collection and storage device, which has the following beneficial effects:

[0032] The storage instrument has the advantage of quantitative blood drawing. It only needs a push plate to drive the pull rod to move up and down. When the push plate is moved to an appropriate height, the medical staff releases the limit rod. When the limit rod is pulled outward, the limit plate is pulled outward, thereby squeezing spring 1. After the limit rod is no longer pulled, the elastic force of spring 1 pushes the limit plate and the limit rod toward the blind hole until one end of the limit rod is inserted into the blind hole, thereby completing the positioning and fixing of the positioning frame and the push plate with high accuracy. At the same time, the rebound mechanism automatically draws blood, thereby improving the efficiency of blood drawing and solving the relatively complicated problems in the prior art that the amount of blood drawn cannot be accurately controlled and blood drawing is performed manually. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the utility model;

[0034] Figure 2 It is a front cross-sectional schematic diagram of a storage frame in the structure of the utility model;

[0035] Figure 3 It is a schematic diagram of the left side cross-sectional structure of the storage frame in the utility model;

[0036] Figure 4 It is a schematic diagram of the cross-sectional structure of the positioning frame in the utility model.

[0037] In the figure:

[0038] 1. Main assembly; 11. Storage frame; 12. Needle tube; 13. Piston plate; 14. Pull rod; 15. Push plate; 151. Guide rail shield; 16. Through slot;

[0039] 2. Blood drawing assembly; 21. Positioning frame; 22. Limit rod; 23. Limit plate; 24. Spring 1; 25. Blind hole; 26. Scale line; 27. Rebound mechanism; 271. Frame; 272. Spring 2; 273. Pull plate; 274. Friction pad. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0042] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] Blood testing is a very common method of physical examination. Currently, most blood collection methods use a syringe to draw blood and then inject it into a test tube.

[0044] In the prior art, since the amount of blood drawn by the needle is manually controlled, it is not convenient to accurately control the amount of blood drawn, and the piston disk in the needle needs to be moved by pulling the pull rod by hand, which takes a long time to operate and is not conducive to improving the efficiency of blood drawing by medical staff.

[0045] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides an automatic blood drawing and storage instrument. When the amount of blood drawn needs to be controlled, the push plate 15 only needs to drive the pull rod 14 to move up and down, so that the piston disk 13 slides on the inner wall of the needle tube 12. The volume between the piston disk 13 and the bottom end of the needle tube 12 is the amount of blood drawn. The scale line 26 is convenient for medical staff to observe the height of the push plate 15. When the push plate 15 is moved to a suitable height, the medical staff releases the limit rod 22. When the limit rod 22 is pulled outward, the limit plate 23 is pulled outward, and then the spring 1 24 is squeezed. After the limit rod 22 is no longer pulled, the elastic force of the spring 1 24 pushes the limit plate 23 and the limit rod 22 toward the direction of the blind hole 25 until one end of the limit rod 22 is inserted into the blind hole 25, thereby completing the positioning and fixation of the positioning frame 21 and the push plate 15 with high accuracy.

[0046] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0047] Combination Figure 1-Figure 4 The embodiment of the present application provides an automatic blood collection storage instrument, including a main body component 1, the main body component 1 includes: a needle tube 12 is arranged on a storage frame 11, a piston disk 13 is arranged on the inner wall of the needle tube 12, a pull rod 14 is arranged at the bottom of the piston disk 13, a push plate 15 is arranged at one end of the pull rod 14, and a through groove 16 is arranged on the outer wall of the storage frame 11. A blood drawing component 2 is arranged on the storage frame 11, and the blood drawing component 2 includes: a positioning frame 21 is arranged on the outer wall of the storage frame 11 close to the push plate 15, a limiting rod 22 is arranged on the positioning frame 21, the limiting rod 22 extends to the inside of the positioning frame 21, a limiting plate 23 is arranged inside the positioning frame 21, the limiting rod 22 passes through the limiting plate 23, a spring 24 is sleeved on the outside of the limiting rod 22, a blind hole 25 is arranged outside the storage frame 11, a scale line 26 is arranged outside the storage frame 11, and a rebound mechanism 27 is arranged inside the storage frame 11.

[0048] When in use, the medical staff uses the blood drawing component 2 to draw blood from the patient: before drawing blood, the amount of blood drawn is controlled by moving the position of the push plate 15: the medical staff moves the push plate 15 up and down, and the push plate 15 drives the pull rod 14 to move up and down, so that the piston disk 13 slides on the inner wall of the needle tube 12, and the volume between the piston disk 13 and the bottom end of the needle tube 12 is the amount of blood drawn. The medical staff pulls the limit rod 22 outward, and the limit rod 22 disengages from the blind hole 25, and pushes the push plate 15 up and down to move in the through groove 16. The positioning frame 21 on one side of the push plate 15 moves up and down with the push plate 15, and the scale line 26 displays the position of the positioning frame 21, which is convenient for the medical staff to observe the height of the push plate 15. When the push plate 15 is moved to a suitable height, the medical staff releases it. The limit rod 22, when pulled outward, drives the limit plate 23 to be pulled outward, and then squeezes the spring 1 24. After the limit rod 22 is no longer pulled, the elastic force of the spring 1 24 pushes the limit plate 23 and the limit rod 22 toward the blind hole 25 until one end of the limit rod 22 is inserted into the blind hole 25, completing the positioning and fixation of the positioning frame 21 and the push plate 15. At this time, the piston disk 13 is restricted to the inner wall of the needle tube 12, and the medical staff inserts the needle tip of the needle tube 12 into the patient's body and pulls the limit rod 22 outward at the same time, so that the limit rod 22 is free from the restriction of the blind hole 25. At this time, the rebound mechanism 27 pulls the pull rod 14 and the piston disk 13 to the bottom, and the pressure in the needle tube 12 changes, and the blood is sucked into the needle tube 12 for storage.

[0049] In some embodiments, the positioning frame 21 is in close contact with the scale line 26 , so that medical personnel can accurately read the position of the positioning frame 21 on the scale line 26 .

[0050] In some embodiments, the blind holes 25 are provided in multiple locations, so that the positioning frame 21 can be fixed in more locations, which facilitates the adjustment of the blood drawing volume in a small range and improves the accuracy.

[0051] In some embodiments, one end of the limit rod 22 close to the blind hole 25 is an inclined surface. When the medical staff releases the limit rod 22, the limit rod 22 rebounds back to the direction of the blind hole 25 due to the elastic force. Since the rebound mechanism 27 pulls the push plate 15 and the pull rod 14 to the bottom, the push plate 15 drives the limit rod 22 to move. The inclined surface of the limit rod 22 makes it squeeze into the inside of the positioning frame 21 when passing through the blind hole 25 during the downward movement, preventing the limit rod 22 from entering the blind hole 25 at this time, restricting the movement of the push plate 15, thereby causing the blood drawing to be interrupted.

[0052] In some embodiments, the rebound mechanism 27 includes: a frame body 271 arranged inside the storage frame 11, a spring 272 arranged on the bottom surface of the frame body 271, a pull plate 273 arranged on the top of the spring 272, and the pull plate 273 is fixedly connected to the bottom end of the pull rod 14.

[0053] The rebound mechanism 27 automatically draws blood after the medical staff releases the limit of the limit rod 22: when the medical staff moves the push plate 15 to adjust the amount of blood drawn, the pull rod 14 drives the pull plate 273 to move upward, and the pull plate 273 slides on the inner wall of the frame 271. The spring 272 at the bottom of the pull plate 273 is stretched by the tension. After the limit rod 22 releases the restriction of the push plate 15, the spring 272 has a large elastic force, which pulls the pull plate 273, the pull rod 14 and the piston disk 13 downward, changing the pressure in the needle tube 12, and automatically sucking blood into the needle tube 12, which is convenient and quick.

[0054] In some embodiments, the spring 272 is always in a stretched state, and a baffle is provided on the inner wall of the frame 271, which limits the downward movement of the pull plate 273. The distance from the pull plate 273 to the baffle is not enough to relax the spring 272, so that the spring 272 is always in a stretched state, and the elastic force of the spring 272 is sufficient to pull the piston disk 13 to the bottom of the needle tube 12, thereby preventing insufficient blood drawing due to insufficient elasticity of the spring 272.

[0055] In some embodiments, a friction pad 274 is provided on the inner wall of the frame 271. The friction pad 274 has anti-slip grooves, which slow down the moving speed of the pull plate 273 to a certain extent and prevent the blood from being drawn too quickly.

[0056] In some embodiments, a guide rail guard 151 is provided in the through slot 16. The guide rail guard 151 is made of German nylon cloth on the outside, supported by a PVC board on the inside, and protected by a stainless steel plate on the edge. It has a certain degree of elasticity and can be freely extended with the movement of the object under force, thereby playing a variety of roles such as connection and protection in various occasions. The guide rail guard 151 is adapted to the shape of the through slot 16 and is in the shape of a "one". It expands and contracts with the movement of the push plate 15 to cover the exposed through slot 16.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0058] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic blood collection and storage device, comprising a main body component (1), wherein the main body component (1) comprises: A storage frame (11) on which a needle tube (12) is arranged; A piston disk (13) is arranged on the inner wall of the needle tube (12); A pull rod (14) is arranged at the bottom of the piston plate (13); A push plate (15) is arranged at one end of the pull rod (14); A through slot (16) is arranged on the outer side wall of the storage frame (11); The invention is characterized in that: a blood drawing component (2) is arranged on the storage frame (11), and the blood drawing component (2) comprises: A positioning frame (21) is arranged on an outer side wall of the storage frame (11) close to the push plate (15); A limiting rod (22) is arranged on the positioning frame (21), and the limiting rod (22) extends into the interior of the positioning frame (21); A limiting plate (23) is arranged inside the positioning frame (21), and the limiting rod (22) passes through the limiting plate (23); Spring 1 (24), sleeved on the outside of the limiting rod (22); A blind hole (25) is arranged outside the storage frame (11); A scale mark (26) is arranged outside the storage frame (11); The rebound mechanism (27) is arranged inside the storage frame (11).

2. The automatic blood collection and storage device according to claim 1, characterized in that: The positioning frame (21) is in close contact with the scale line (26).

3. The automatic blood collection and storage device according to claim 2, characterized in that: The blind holes (25) are arranged in multiple locations.

4. The automatic blood collection and storage device according to claim 3, characterized in that: One end of the limiting rod (22) close to the blind hole (25) is an inclined surface.

5. The automatic blood collection and storage device according to claim 4, characterized in that: The rebound mechanism (27) comprises: A frame body (271) is arranged inside the storage frame (11); A second spring (272) is arranged on the inner bottom surface of the frame (271); A pull plate (273) is arranged on the top of the second spring (272), and the pull plate (273) is fixedly connected to the bottom end of the pull rod (14).

6. The automatic blood collection and storage device according to claim 5, characterized in that: The second spring (272) is always in a stretched state.

7. The automatic blood collection and storage device according to claim 6, characterized in that: A friction pad (274) is provided on the inner side wall of the frame (271).

8. The automatic blood collection and storage device according to claim 7, characterized in that: A guide rail shield (151) is arranged in the through slot (16).

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