Blood sampling assist device

Abstract

The blood sampling assist device comprises a blood sampling part, the blood sampling part is provided with a first cavity with an opening in the upper portion, a blood sampling needle is longitudinally arranged in the first cavity, a first pressing plate assembled in a sliding mode in the longitudinal direction is arranged at the opening in the upper portion of the first cavity, and a penetrating hole corresponding to the blood sampling needle is formed in the middle of the pressing plate; in response to pressing of the finger towards the opening of the first cavity, the blood taking needle penetrates through the penetrating hole and punctures the finger; the extrusion part is provided with a second cavity with an opening in the upper portion, the two sides of the extrusion part are provided with extrusion plates extending upwards, the extrusion plates are arc-shaped plates folded outwards, and one ends of the two extrusion plates are close to each other to form a V-shaped extrusion structure; the hidden blood taking needle design is formed through sealing of the first pressing plate, the first pressing plate is pressed to enable the blood taking needle to pierce fingers upwards, a patient is prevented from fear, and the squeezing plate is arranged to squeeze the fingers, so that blood is prevented from being exposed in the visual field, and the blood faint problem of the patient is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of medical auxiliary equipment, and in particular relates to a blood sampling auxiliary device. Background Art

[0002] At present, medical institutions usually use blood collection needles to draw blood during routine blood collection. Although this method can be done with one needle per person and prevent cross infection, patients may feel fear when they see the needle directly (especially children).

[0003] In addition, after blood collection, staff will generally squeeze their fingertips to ensure that the amount of blood collected meets the demand, but pressing the fingers will cause great pain to the patient, and the blood will be fully exposed to the field of vision, which is very dangerous for people who are prone to blood phobia.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, and the present invention provides a blood sampling aid.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A blood collection aid, comprising:

[0008] The blood collection part has a first cavity with an upper opening, a blood collection needle arranged longitudinally is arranged in the first cavity, a first pressing plate slidably assembled along the longitudinal direction is arranged at the upper opening of the first cavity, a through hole corresponding to the blood collection needle is arranged in the middle of the pressing plate, and in response to a finger pressing the opening of the first cavity, the blood collection needle passes through the through hole and punctures the finger;

[0009] An extrusion portion, wherein the extrusion portion has a second cavity open at the top, and extrusion plates extending upward are provided on both sides of the extrusion portion, wherein the extrusion plates are arc-shaped plates folded outward, and one ends of the two extrusion plates are close to each other to form a V-shaped extrusion structure;

[0010] In response to pressing the smaller end of the squeezing mechanism and / or the opening of the second cavity with a finger, the bleeding volume is increased by squeezing.

[0011] Preferably, a second pressing plate is provided at the opening of the second cavity, a blood collection groove is provided in the middle of the second pressing plate, the second pressing plate is slidably assembled in the second cavity along the longitudinal direction, and a limiting step corresponding to the second pressing plate is provided in the second cavity.

[0012] Preferably, a pressing gap is provided between the second pressing plate and the position-limiting step platform, and an elastic buffer is provided in the pressing gap.

[0013] Preferably, a blood collection groove is provided in the middle of the second pressing plate, a bleeding port is provided at the bottom of the blood collection groove, and the inlet of the blood storage blood vessel is extended into the second cavity through a hose and then connected to the bleeding port.

[0014] Preferably, the blood collection groove is adapted to the shape of a finger, and a plurality of blood guiding grooves are evenly distributed around the bleeding port, and the depth and width of the blood guiding grooves gradually decrease toward an end away from the bleeding port.

[0015] Preferably, a balloon is provided at one end of the blood storage vessel, and the other end is integrally formed with the hose via a tapered transition portion, and a notch is provided between the blood storage vessel and the hose.

[0016] Preferably, the blood collection part is located at the end of the larger extrusion structure of the extrusion part, and the two are integrally formed, a disinfectant wipe is attached to the upper surface of the first pressing plate, and a sealing film is attached to the upper surfaces of the blood collection part and the extrusion part.

[0017] Preferably, a base adapted to the second cavity is fixed to the bottom of the blood collection needle, and the upper surface of the base is a flat surface corresponding to the first pressing plate;

[0018] The upper end of the blood collection needle and the upper surface of the first pressing plate are in the same horizontal plane, and the gap between the flat surface and the first pressing plate is adapted to the blood collection penetration depth of the blood collection needle.

[0019] Preferably, a convex strip corresponding to the first pressing plate is provided inside the first cavity, and a rubber strip located above the convex strip is provided on the edge of the first pressing plate.

[0020] Preferably, a threaded adjustment stud is provided below the blood collection part. The adjustment stud passes through the blood collection part and extends into the first cavity and then abuts against the lower surface of the base to adjust the gap between the flat surface and the first pressing plate.

[0021] Beneficial effect: A hidden blood collection needle design is formed by sealing the first pressing plate. By pressing the first pressing plate, the blood collection needle pierces the finger upwards to avoid the patient's fear. A squeezing plate is provided to squeeze the finger to avoid blood being exposed in the field of vision, thereby avoiding the patient's blood fainting problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0023] Figure 1 A simplified structural diagram of a blood sampling device in a specific embodiment provided by the present invention;

[0024] Figure 2 A simplified cross-sectional view of a blood sampling device in a specific embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the distribution of the blood guide grooves in a specific embodiment provided by the present invention;

[0026] Figure 4 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0027] In the figure: 1. extrusion plate; 2. extrusion part; 3. blood collection part; 4. sealing film; 5. pressing icon; 6. connecting plate; 7. blood storage tube; 8. blood collection groove; 9. blood guide groove; 10. blood collection needle; 11. first pressing plate; 12. base; 13. adjustment stud; 14. hose; 15. notch; 16. perforation; 17. disinfectant wipes; 18. convex strip; 19. rubber strip. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0029] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0031] like Figure 1-4As shown, a blood collection auxiliary device includes a blood collection part 3 and an extrusion part 2. The blood collection part 3 is a square structure, and the extrusion part 2 is a table-like structure with one end larger than the other end, both of which are made of plastic. The blood collection part 3 has a first cavity with an upper opening, and the first cavity is preferably square or circular. A longitudinally arranged blood collection needle 10 is provided in the first cavity. The blood collection needle 10 is a metal needle with a sharp end at the upper end. A first pressing plate 11 is provided at the upper opening of the first cavity and is slidably assembled along the longitudinal direction. A through hole 16 corresponding to the blood collection needle 10 is provided in the middle of the pressing plate, and the inner diameter of the through hole 16 is matched with the outer diameter of the blood collection needle 10. In response to the finger pressing against the open part of the first cavity, the blood collection needle 10 passes through the through hole 16 and pierces the finger, thereby causing the finger to be damaged and bleed.

[0032] The extrusion part 2 has a second cavity open at the top, which is also preferably square or circular. Upward-extending extrusion plates 1 are provided on both sides of the extrusion part 2. The extrusion plates 1 and the extrusion part 2 are integrally formed. The extrusion plates 1 are arc-shaped plates folded outward to form a large longitudinal guide. During the longitudinal pressing process, the two sides of the finger are squeezed to increase the bleeding amount. Furthermore, one end of the two extrusion plates 1 is close to each other to form a V-shaped extrusion structure that is adapted to the shape of the extrusion part 2, thereby enhancing the extrusion ability when the finger is squeezed toward the smaller end of the extrusion part 2, in response to the finger pressing toward the smaller end of the extrusion mechanism and / or the opening of the second cavity, so as to increase the bleeding amount by squeezing, wherein the longitudinal height of the extrusion plate 1 is adapted to the longitudinal thickness of the finger.

[0033] During the actual blood collection process, the blood collection part 3 is first pressed to puncture the finger, then pushed forward to the position, and then pressed toward the second cavity to form squeezing. During the squeezing process, the blood will not be exposed to the field of vision, thus avoiding the problem of blood fainting.

[0034] A connecting plate 6 is provided at the smaller ends of the two squeezing plates 1 to connect the two squeezing plates 1 and block fingers to prevent them from extending out of the squeezing portion 2 .

[0035] In an optional embodiment, a second pressing plate is provided at the opening of the second cavity, and a blood collection groove 8 is provided in the middle of the second pressing plate for collecting blood. The second pressing plate is adapted to the second cavity so as to slide downward with pressing, thereby meeting the purpose of blood collection. The second pressing plate is longitudinally slidably assembled in the second cavity, and a limiting step corresponding to the second pressing plate is provided in the second cavity. The limiting step can limit the maximum stroke of the second pressing plate to avoid separation from the finger.

[0036] There is a pressing gap between the second pressing plate and the limit step platform, and an elastic buffer is arranged in the pressing gap. The elastic buffer can be a spring or other elastic material, so as to ensure that the second pressing plate can be kept close to the finger.

[0037] A bleeding port is provided at the bottom of the blood collection groove 8, and the bleeding port guides the collected blood into the blood storage blood vessel 7. The inlet of the blood storage blood vessel 7 extends into the second cavity through a hose 14 and then communicates with the bleeding port.

[0038] In order to ensure the ability to collect blood, the blood collection groove 8 is adapted to the shape of the finger, and a corresponding pressing icon 5 is provided on the first pressing plate 11. The pressing icon 5 is adapted to the shape of the finger, thereby ensuring the accuracy of the puncture position, so that the puncture position is close to the bleeding port during the extrusion process. A plurality of blood guide grooves 9 are evenly distributed around the bleeding port to prevent blood from staining the finger and to ensure that blood can be collected smoothly when the puncture position does not completely correspond to the bleeding port. The depth and width of the blood guide groove 9 gradually decrease toward the end away from the bleeding port, thereby improving the ability to guide blood in the form of smaller at a distance and larger near.

[0039] In an optional embodiment, the blood storage blood vessel 7 is a straw structure, one end of which is provided with a balloon, and the other end is integrally formed with the hose 14 through a tapered transition portion, and blood suction can be achieved by pressing the balloon. The blood storage blood vessel 7 is a hard tube, and a notch 15 is provided near the hose 14. The depth of the notch 15 is not greater than the wall thickness at the corresponding position, and the blood storage blood vessel 7 can be smoothly broken at the notch 15, thereby transferring the blood storage blood vessel 7 to the blood testing site.

[0040] In an optional embodiment, the blood collection part 3 is located at the end of the extrusion structure of the extrusion part 2 with a larger size, and the two are integrally formed. The longitudinal heights of the blood collection part 3 and the extrusion part 2 are the same, so that they can be quickly moved to the extrusion part 2 for extrusion after pressing and puncturing.

[0041] A disinfectant wipe 17 is attached to the upper surface of the first pressing plate 11, and the disinfectant wipe 17 is pasted on the upper surface of the first pressing plate 11, so as to ensure the quality of disinfection. Medical staff do not need to perform disinfection, which reduces the difficulty of their work. A sealing film 4 is attached to the upper surfaces of the blood collection part 3 and the extrusion part 2. The sealing mold seals the blood collection part 3 and the extrusion part 2 by heat sealing or adhesion. The sealing film 4 can be an aluminum film or a plastic film.

[0042] One end of the plastic film away from the squeezing portion 2 is provided with a gripping portion extending out of the blood collection portion 3 to facilitate tearing off the sealing film 4.

[0043] In an optional embodiment, a base 12 adapted to the first cavity is fixed at the bottom of the blood collection needle 10. The base 12 can slide longitudinally in the first cavity. The upper surface of the base 12 is a flat surface corresponding to the first pressing plate 11, which can limit the longitudinal sliding stroke of the first pressing plate 11 and ensure that the blood collection needle 10 does not penetrate too deeply.

[0044] In order to prevent the blood collection needle 10 from accidentally injuring the finger when not collecting blood, the upper end of the blood collection needle 10 and the upper surface of the first pressing plate 11 are on the same horizontal plane, and the gap between the flat surface and the first pressing plate 11 is adapted to the insertion depth of the blood collection needle 10 for blood collection.

[0045] In this embodiment, a convex strip 18 with a semicircular cross-section corresponding to the first pressing plate 11 is provided inside the first cavity, and the interface of the convex strip 18 is semicircular. The convex strip 18 can form a ring along the inner wall of the first cavity, or can be distributed in the form of discontinuous lines. A rubber strip 19 is provided on the edge of the first pressing plate 11 and is located above the convex strip 18. The rubber strip 19 is fixed to the outer periphery of the first pressing plate 11 by glue adhesion. The rubber strip 19 is located at the upper edge of the first pressing plate 11, and a step is provided on the upper edge of the first pressing plate 11. The convex strip 18 extends above the step, and the rubber strip 19 and the step form a limit for the convex strip 18, thereby preventing the first pressing plate 11 from slipping in the non-blood collection state. Furthermore, after the rubber strip 19 forms a limit, the rubber strip 19 is pressed to cause the rubber strip 19 to deform in the longitudinal direction and then accelerate instantly, thereby quickly puncturing, which helps patients overcome their fear and ensures that the puncture is in place.

[0046] In order to ensure the installation stability of the rubber strip 19 , an annular groove corresponding to the rubber strip 19 is provided on the outer periphery of the first pressing plate 11 .

[0047] A flat groove corresponding to the disinfectant wipes 17 is provided above the first pressing plate 11, so that the disinfectant wipes 17 can be accommodated so that the upper surface of the disinfectant wipes 17 is at the same height as the upper edge of the first pressing plate 11. A fingertip-shaped shape can be drawn on the disinfectant wipes 17 as the pressing icon 5.

[0048] In an optional embodiment, a threaded adjustment stud 13 is provided below the blood collection part 3. There may be four adjustment studs 13, which are evenly distributed circumferentially about the base 12. The adjustment stud 13 passes through the blood collection part 3 and extends into the first cavity, and then abuts against the lower surface of the base 12 to adjust the gap between the flat surface and the first pressing plate 11. The adjustment stud 13 is adjusted according to the required blood collection volume, patient age, etc., so as to adjust the adjustment stud 13 to adjust the insertion depth.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A blood collection aid, characterized in that: include: The blood collection portion comprises a first cavity with an upper opening, a longitudinally arranged blood collection needle disposed in the first cavity, a first pressing plate slidably mounted longitudinally at the upper opening of the first cavity, a through-hole corresponding to the blood collection needle disposed in the middle of the pressing plate, and in response to a finger pressing against the opening of the first cavity, the blood collection needle passes through the through-hole and punctures the finger; An extrusion portion, the extrusion portion having a second cavity open at the top, and upwardly extending extrusion plates provided on both sides of the extrusion portion, the extrusion plates being outwardly folded arc-shaped plates, with one end of the two extrusion plates close to each other to form a V-shaped extrusion structure; In response to pressing the smaller end of the squeezing mechanism and / or the opening of the second cavity with a finger, the bleeding volume is increased by squeezing.

2. The blood collection aid according to claim 1, characterized in that: A second pressing plate is provided at the opening of the second cavity, a blood collection groove is provided in the middle of the second pressing plate, the second pressing plate is longitudinally slidably assembled in the second cavity, and a limiting step corresponding to the second pressing plate is provided in the second cavity.

3. The blood collection aid according to claim 2, characterized in that: A pressing gap is provided between the second pressing plate and the position-limiting step platform, and an elastic buffer is provided in the pressing gap.

4. The blood collection aid according to claim 2, characterized in that: A blood collection groove is provided in the middle of the second pressing plate, a bleeding port is provided at the bottom of the blood collection groove, and the inlet of the blood storage blood vessel is extended into the second cavity through a flexible tube and then connected to the bleeding port.

5. The blood collection aid according to claim 4, characterized in that: The blood collection groove is adapted to the shape of a finger, and a plurality of blood guide grooves are evenly distributed around the bleeding port. The depth and width of the blood guide grooves gradually decrease toward the end away from the bleeding port.

6. The blood collection aid according to claim 5, characterized in that: A balloon is provided at one end of the blood storage tube, and the other end is integrally formed with the soft tube via a tapered transition portion, and a notch is provided between the blood storage tube and the soft tube.

7. The blood collection aid according to claim 1, characterized in that: The blood collection part is located at the end of the extrusion structure of the extrusion part with a larger size, and the two are formed as one piece. A disinfectant wipe is attached to the upper surface of the first pressing plate, and a sealing film is attached to the upper surfaces of the blood collection part and the extrusion part.

8. The blood collection aid according to claim 1, characterized in that: A base adapted to the second cavity is fixed to the bottom of the blood collection needle, and the upper surface of the base is a flat surface corresponding to the first pressing plate; The upper end of the blood collection needle and the upper surface of the first pressing plate are in the same horizontal plane, and the gap between the flat surface and the first pressing plate is adapted to the blood collection penetration depth of the blood collection needle.

9. The blood collection aid according to claim 8, characterized in that: A convex strip corresponding to the first pressing plate is provided inside the first cavity, and a rubber strip located above the convex strip is provided on the edge of the first pressing plate.

10. The blood collection aid according to claim 9, characterized in that: A threaded adjustment screw is provided below the blood collection part. The adjustment screw passes through the blood collection part, extends into the first cavity, and then abuts against the lower surface of the base to adjust the gap between the flat surface and the first pressing plate.

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