Anti-needling blood taking needle device

Abstract

The utility model relates to a puncture-proof blood taking needle device which comprises a first puncture unit, a blood transfusion tube unit, a second puncture unit and a first protection unit. The blood sampling device has the advantages that the first protection unit is in sliding connection with the first puncture unit, the first puncture unit can be protected by pressing and sliding the first protection unit through the thumb, and the first puncture unit is exposed to be matched with the blood transfusion tube unit and the second puncture unit for blood sampling; the first protection unit is arranged at the end away from the needle head of the first puncture unit, the hand of a medical worker does not make contact with the first puncture unit, occupational exposure is reduced, the acupuncture risk is reduced, the length of the first puncture unit is not affected, and normal blood sampling can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of blood collection needle technology, and in particular to a blood collection needle device that prevents needle pricks. Background Technology

[0002] In medical testing and laboratory research, lancets are a commonly used tool for collecting blood samples from patients or laboratory animals. Traditional lancets have a simple design, typically consisting of a needle hub, lancet, syringe tubing, blood collection tube, and sheath. During use, the sheath protects the needle tip to prevent needlestick injuries. However, this design presents some safety risks.

[0003] First, the protective sheath needs to be manually applied to the lancet. During this process, if the user does not correctly and completely cover the lancet, there is still a risk of needlestick injury. Furthermore, the sheath needs to be manually removed after use, a process that can also lead to needlestick injuries. Second, the sheath is easily damaged or lost, affecting the protective effect of the lancet. Third, existing lancet protection devices only provide single-end protection, covering only one end of the needle tip, leaving the other end (usually the end connected to the tubing) exposed, increasing the likelihood of needlestick injury. Additionally, existing safety lancets, when used with a needle holder, require a longer tubing insertion distance and greater force, increasing patient pain and resulting in a poor experience.

[0004] There are still no effective solutions to the problems in the relevant technologies, such as the risk of puncture when removing and putting on the blood collection needle, the inability of the protective structure to completely cover the blood collection needle, the interference of the protective structure with normal blood collection, and the fact that the blood collection needle is only protected on one side. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a needle-proof blood collection needle device. This addresses issues such as the risk of needle pricks when removing and putting on the blood collection needle due to the protective structure, the inability of the protective structure to completely cover the blood collection needle, the interference of the protective structure with normal blood collection, and the fact that the blood collection needle is only protected on one side.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A needlestick-proof blood collection needle device, comprising:

[0008] The first puncture unit is used to puncture the patient's skin to collect blood.

[0009] A blood transfusion unit, wherein the first end of the blood transfusion unit is connected to the second end of the first puncture unit, for outputting blood;

[0010] The second puncture unit has a first end connected to the second end of the infusion tube unit and a second end connected to the blood collection tube, and is used to puncture the blood collection tube and output blood to the blood collection tube.

[0011] A first protective unit is slidably disposed outside the first puncture unit and slidably connected to the transfusion tube unit to prevent the first puncture unit from injuring medical personnel.

[0012] In some embodiments, the first puncture unit includes:

[0013] A first puncture element, the second end of which is connected to the first end of the blood transfusion unit, is used to puncture the patient's skin and deliver blood to the blood transfusion unit;

[0014] A first gripping element is disposed at the second end of the first piercing element and is used for gripping.

[0015] In some embodiments, the transfusion tube unit includes:

[0016] A blood transfusion element, wherein a first end of the blood transfusion element is connected to a second end of the first puncture unit, and a second end of the blood transfusion element is connected to a first end of the second puncture unit, for outputting blood to the second puncture unit.

[0017] In some embodiments, the transfusion tube unit further includes:

[0018] A first limiting element is disposed at the first end of the blood transfusion vessel element and abuts against the first protection unit, thereby limiting the range of motion of the first protection unit.

[0019] In some embodiments, the second piercing unit includes:

[0020] The second puncturing element has a first end connected to the second end of the blood transfusion unit and a second end connected to the blood collection tube, and is used to puncture the blood collection tube and output blood to the blood collection tube.

[0021] The second gripping element is sleeved on the first end of the second puncture element and connected to the second end of the transfusion tube unit for gripping.

[0022] In some embodiments, the first protection unit includes:

[0023] The first protective shell element covers the first puncture unit and is slidably connected to the first puncture unit and the transfusion tube unit, respectively, to prevent the first puncture unit from puncturing medical personnel.

[0024] A first sliding element is disposed on the first protective shell element and slidably connected to the first puncture unit, for sliding the first protective shell element;

[0025] A third gripping element is disposed at the second end of the first protective shell element and is slidably connected to the first puncture unit and the transfusion vessel unit, respectively, for gripping.

[0026] In some embodiments, the first protection unit further includes:

[0027] A first anti-slip element is disposed on the side of the third gripping element for preventing slippage.

[0028] In some of these embodiments, it also includes:

[0029] A locking unit is disposed on the side of the first protective unit and is limitedly connected to the first puncture unit to lock the relative position of the first protective unit and the first puncture unit.

[0030] In some embodiments, the first puncture unit further includes:

[0031] A first locking element is disposed through the first puncture unit and is locked to the locking unit to lock the position of the first protection unit.

[0032] In some embodiments, the first protection unit further includes:

[0033] The second sliding element passes through the first protection unit and is located near the second end of the first protection unit, and is slidably connected to the locking unit.

[0034] In some embodiments, the locking unit includes:

[0035] The second locking element is slidably disposed on the side of the first protection unit and near the second end of the first protection unit, and is locked to the first puncture unit;

[0036] A third sliding element is disposed on the side of the second locking element and slidably connected to the first protection unit, for sliding along the circumference of the first protection unit under the action of the second locking element;

[0037] The second limiting element is disposed at the end of the third sliding element and located inside the first protection unit, for preventing the third sliding element from separating from the first protection unit.

[0038] In some embodiments, the locking unit further includes:

[0039] A third limiting element is disposed on the side of the second locking element and is limitedly connected to the first piercing unit to limit the relative position of the locking unit and the first piercing unit.

[0040] The second anti-slip element is disposed on the side of the second locking element and is used for anti-slip.

[0041] In some of these embodiments, it also includes:

[0042] The second protective unit covers the second puncture unit and is slidably connected to the transfusion tube unit and the second puncture unit, respectively, to prevent the second puncture unit from injuring medical personnel.

[0043] In some embodiments, the second protection unit includes:

[0044] The second protective shell element is sleeved on the second piercing unit and can slide along the axial direction of the second piercing unit to cover or expose the second piercing unit.

[0045] A connecting element is disposed at the first end of the second protective shell element and is slidably connected to the transfusion tube unit and detachably connected to the second puncture unit, for fixing the relative position of the second protective shell element and the second puncture unit.

[0046] In some embodiments, the transfusion tube unit further includes:

[0047] A fourth limiting element is disposed at the second end of the transfusion tube unit and abuts against the second protection unit, thereby limiting the range of motion of the second protection unit.

[0048] In some embodiments, the second piercing unit further includes:

[0049] A fifth limiting element is disposed at the first end of the second puncture unit and is limitedly connected to the second protection unit to limit the relative position between the second protection unit and the second puncture unit.

[0050] In some embodiments, the second protection unit further includes:

[0051] A sixth limiting element is disposed at the second end of the second protective shell element and is limitedly connected to the second puncture unit to limit the relative position of the second protective shell element and the second puncture unit.

[0052] In some embodiments, the second protection unit further includes:

[0053] A fixing element is disposed at the second end of the second protective shell element and is detachably connected to the blood collection tube for fixing the blood collection tube.

[0054] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0055] This utility model discloses a needle-puncture-proof blood collection needle device. A first protective unit is slidably connected to a first puncture unit. By pressing and sliding the first protective unit with the thumb, the first puncture unit can be protected and exposed for use with the transfusion tube unit and the second puncture unit for blood collection. Furthermore, the first protective unit is positioned away from the needle tip of the first puncture unit, preventing the medical staff's hand from contacting it. This not only reduces occupational exposure and the risk of needlestick injury but also does not affect the length of the first puncture unit, allowing for normal blood collection. This solves the problems of needlestick injury risk and interference with normal blood collection when removing and putting on the blood collection needle. The locking unit is locked to the first puncture unit, effectively preventing the first protective unit from sliding relative to the first puncture unit and exposing the first puncture unit, reducing the risk of needle puncture, and solving the problem that the protective structure cannot be completely fitted onto the blood collection needle. The second protective unit is set to be detachably connected to the second puncture unit and slidably connected to the blood collection tube element. Operation is performed at the distal end of the second puncture unit without direct contact with the second puncture unit. This not only simplifies operation and does not affect blood collection, but also provides effective protection for the second puncture unit. At the same time, fixing the blood collection tube can reduce the risk of blood collection tube ejection, improve the safety of blood collection needle use, and solve the problem that the blood collection needle only has protection on one side. Attached Figure Description

[0056] Figure 1 This is a schematic diagram (a) of a blood collection needle device according to an embodiment of the present utility model;

[0057] Figure 2 This is a schematic diagram (a) of the first puncture unit according to an embodiment of the present utility model;

[0058] Figure 3 This is a schematic diagram (a) of the blood transfusion unit according to an embodiment of the present utility model;

[0059] Figure 4 This is a schematic diagram (a) of the second piercing unit according to an embodiment of the present utility model;

[0060] Figure 5 This is a schematic diagram (a) of the first protection unit according to an embodiment of the present utility model;

[0061] Figure 6 This is a schematic diagram (II) of a blood collection needle device according to an embodiment of the present utility model;

[0062] Figure 7 This is a schematic diagram (II) of the first piercing unit according to an embodiment of the present utility model;

[0063] Figure 8 This is a schematic diagram (II) of the first protection unit according to an embodiment of the present utility model;

[0064] Figure 9 This is a schematic diagram of a locking unit according to an embodiment of the present utility model;

[0065] Figure 10 This is a schematic diagram (III) of a blood collection needle device according to an embodiment of the present utility model;

[0066] Figure 11 This is a schematic diagram (II) of the blood transfusion unit according to an embodiment of the present utility model;

[0067] Figure 12 This is a schematic diagram (II) of the second piercing unit according to an embodiment of the present utility model;

[0068] Figure 13 This is a schematic diagram of the second protection unit according to an embodiment of the present utility model.

[0069] The reference numerals in the attached figures are:

[0070] 10. First piercing unit; 11. First piercing element; 12. First gripping element; 13. First locking element;

[0071] 20. Transfusion vessel unit; 21. Transfusion vessel element; 22. First limiting element; 23. Fourth limiting element;

[0072] 30. Second piercing unit; 31. Second piercing element; 32. Second gripping element; 33. Fifth limiting element;

[0073] 40. First protective unit; 41. First protective shell element; 42. First sliding element; 43. Third grip element; 44. First anti-slip element; 45. Second sliding element;

[0074] 50. Locking unit; 51. Second locking element; 52. Third sliding element; 53. Second limiting element; 54. Third limiting element; 55. Second anti-slip element;

[0075] 60. Second protection unit; 61. Second protective shell element; 62. Connecting element; 63. Sixth limiting element; 64. Fixing element. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0077] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0078] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0079] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units (elements) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or apparatus. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” used in this application refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0080] Example 1

[0081] An illustrative embodiment of this utility model, such as Figure 1 As shown, a needle-puncture-resistant blood collection needle device includes a first puncture unit 10, a transfusion tube unit 20, a second puncture unit 30, and a first protective unit 40. The first puncture unit 10 is used to puncture the patient's skin for blood collection; the first end of the transfusion tube unit 20 is connected to the second end of the first puncture unit 10 for dispensing blood; the first end of the second puncture unit 30 is connected to the second end of the transfusion tube unit 20, and the second end of the second puncture unit 30 is connected to the blood collection tube for puncturing the blood collection tube and dispensing blood into it; the first protective unit 40 is slidably disposed outside the first puncture unit 10 and slidably connected to the transfusion tube unit 20 to prevent the first puncture unit 10 from puncturing medical personnel.

[0082] like Figure 2 As shown, the first puncture unit 10 includes a first puncture element 11 and a first holding element 12. The second end of the first puncture element 11 is connected to the first end of the blood transfusion unit 20 and is used to puncture the patient's skin and deliver blood to the blood transfusion unit 20; the first holding element 12 is disposed at the second end of the first puncture element 11 and is used for holding.

[0083] In some embodiments, the first puncture element 11 is a first blood collection needle or a venous blood collection needle.

[0084] The first gripping element 12 and the first piercing element 11 are connected by a fixed connection. The fixed connection method includes, but is not limited to, heat pressing.

[0085] The dimensions of the first holding element 12 are matched with the dimensions of the first piercing element 11. Generally, the radial dimension (e.g., outer diameter) of the first holding element 12 is larger than the radial dimension (e.g., outer diameter) of the first piercing element 11, and the length of the first holding element 12 is smaller than the length of the first piercing element 11.

[0086] In some of these embodiments, the first gripping element 12 includes, but is not limited to, a single-sided butterfly shape or a double-sided butterfly shape.

[0087] In some of these embodiments, the first holding element 12 is also used to secure the first piercing element 11.

[0088] In some of these embodiments, the first gripping element 12 is a first needle handle.

[0089] like Figure 3 As shown, the blood transfusion unit 20 includes a blood transfusion element 21. The first end of the blood transfusion element 21 is connected to the second end of the first puncture unit 10, and the second end of the blood transfusion element 21 is connected to the first end of the second puncture unit 30, for outputting blood to the second puncture unit 30.

[0090] Specifically, the first end of the transfusion tube element 21 is connected to the second end of the first holding element 12 and communicates with the second end of the first puncture element 11.

[0091] The connection between the infusion tube element 21 and the first gripping element 12 is a fixed connection. The fixed connection method includes, but is not limited to, heat pressing.

[0092] The dimensions of the infusion tube element 21 are matched with the dimensions of the first gripping element 12. Generally, the radial dimension (e.g., inner diameter) of the infusion tube element 21 is equal to the radial dimension (e.g., outer diameter) of the first gripping element 12.

[0093] In some of these embodiments, the blood vessel element 21 is a blood vessel.

[0094] Furthermore, the transfusion tube unit 20 also includes a first limiting element 22. The first limiting element 22 is disposed at the first end of the transfusion tube unit 21 and abuts against the first protection unit 40, thereby limiting the range of motion of the first protection unit 40.

[0095] The first limiting element 22 and the infusion tube element 21 are connected by a fixed connection. The fixed connection method includes, but is not limited to, integral molding.

[0096] The dimensions of the first limiting element 22 are matched with the dimensions of the transfusion vessel element 21. Generally, the radial dimension (e.g., outer diameter) of the first limiting element 22 is larger than the radial dimension (e.g., outer diameter) of the transfusion vessel element 21, and the length of the first limiting element 22 is smaller than the length of the transfusion vessel element 21.

[0097] In some of these embodiments, the first limiting element 22 is a first limiting ring.

[0098] like Figure 4 As shown, the second puncture unit 30 includes a second puncture element 31 and a second holding element 32. The first end of the second puncture element 31 is connected to the second end of the infusion tube unit 20, and the second end of the second puncture element 31 is connected to the blood collection tube for puncturing the blood collection tube and discharging blood into it. The second holding element 32 is fitted over the first end of the second puncture element 31 and connected to the second end of the infusion tube unit 20 for holding.

[0099] Specifically, the second puncture element 31 is disposed at the second end of the blood transfusion element 21 and communicates with the blood transfusion element 21; the second gripping element 32 is connected to the second end of the blood transfusion element 21.

[0100] The dimensions of the second puncture element 31 are matched with the dimensions of the transfusion vessel element 21. Generally, the radial dimension (e.g., outer diameter) of the second puncture element 31 is larger than the radial dimension (e.g., outer diameter) of the transfusion vessel element 21.

[0101] In some of these embodiments, the second puncture element 31 is a second blood collection needle.

[0102] The second gripping element 32 is fixedly connected to the transfusion tube element 21 (second puncture element 31). The fixed connection method includes, but is not limited to, thermal pressing.

[0103] The dimensions of the second gripping element 32 are matched with the dimensions of the infusion tube element 21. Generally, the radial dimension (e.g., outer diameter) of the second gripping element 32 is larger than the radial dimension (e.g., outer diameter) of the infusion tube element 21.

[0104] The dimensions of the second holding element 32 are matched with the dimensions of the second piercing element 31. Generally, the radial dimension (e.g., outer diameter) of the second holding element 32 is larger than the radial dimension (e.g., outer diameter) of the second piercing element 31, and the length of the second holding element 32 is smaller than the length of the piercing element.

[0105] In some of these embodiments, the second gripping element 32 is a second needle handle.

[0106] like Figure 5As shown, the first protective unit 40 includes a first protective shell element 41, a first sliding element 42, and a third gripping element 43. The first protective shell element 41 covers the first puncture unit 10 and is slidably connected to both the first puncture unit 10 and the transfusion vessel unit 20, preventing the first puncture unit 10 from injuring medical personnel. The first sliding element 42 is disposed on the first protective shell element 41 and is slidably connected to the first puncture unit 10, used for sliding the first protective shell element 41. The third gripping element 43 is disposed at the second end of the first protective shell element 41 and is slidably connected to both the first puncture unit 10 and the transfusion vessel unit 20, used for gripping.

[0107] Specifically, the first protective shell element 41 covers the first puncture element 11 and the first gripping element 12, and is slidably connected to the first puncture element 11, the first gripping element 12 and the transfusion blood vessel element 21 respectively, and abuts against the first limiting element 22 to prevent the first puncture element 11 from puncturing medical personnel; the first sliding element 42 is disposed on the side of the first puncture element 11 and is slidably connected to the first gripping element 12; the third gripping element 43 is slidably connected to the first gripping element 12 and the transfusion blood vessel element 21 respectively.

[0108] The dimensions of the first protective shell element 41 are matched with the dimensions of the first puncture element 11. Generally, the radial dimension (e.g., inner diameter) of the first protective shell element 41 is larger than the radial dimension (e.g., outer diameter) of the first puncture element 11, and the length of the first protective shell element 41 is larger than the length of the first puncture element 11.

[0109] The dimensions of the first protective shell element 41 are matched with the dimensions of the first gripping element 12. Generally, the radial dimension (e.g., inner diameter) of the first protective shell element 41 is larger than the radial dimension (e.g., outer diameter) of the cross section of the first gripping element 12 in which it is located.

[0110] The dimensions of the first protective shell element 41 are matched with the dimensions of the transfusion tube element 21. Generally, the radial dimension (e.g., inner diameter) of the first protective shell element 41 is larger than the radial dimension (e.g., outer diameter) of the transfusion tube element 21.

[0111] In some embodiments, the material of the first protective shell element 41 includes, but is not limited to, plastic.

[0112] In some of these embodiments, the first protective shell element 41 is a first protective shell.

[0113] The dimensions of the first sliding element 42 are matched with the dimensions of the first protective shell element 41. Generally, the arc length of the cross-section of the first sliding element 42 is less than half the perimeter of the first protective shell element 41; the height of the first sliding element 42 is equal to the thickness of the first protective shell element 41; and the length of the first sliding element 42 is less than the length of the first protective shell element 41.

[0114] The dimensions of the first sliding element 42 are matched with the dimensions of the first gripping element 12. Generally, the arc length of the cross-section of the first sliding element 42 is greater than the thickness of the cross-section of the first gripping element 12 in which it is located.

[0115] In some of these embodiments, the first sliding element 42 is a first sliding groove.

[0116] The third gripping element 43 is fixedly connected to the first protective shell element 41. This fixed connection includes, but is not limited to, integral molding.

[0117] The dimensions of the third gripping element 43 are matched with the dimensions of the first gripping element 12. Generally, the radial dimension (e.g., inner diameter) of the third gripping element 43 is larger than the radial dimension (e.g., outer diameter) of the cross section of the first gripping element 12 in which it is located.

[0118] The dimensions of the third gripping element 43 are matched with the dimensions of the infusion tube element 21. Generally, the radial dimension (e.g., inner diameter) of the third gripping element 43 is larger than the radial dimension (e.g., outer diameter) of the infusion tube element 21.

[0119] The dimensions of the third gripping element 43 are matched with the dimensions of the first limiting element 22. Generally, the radial dimension (e.g., inner diameter) of the third gripping element 43 is smaller than the radial dimension (e.g., outer diameter) of the first limiting element 22.

[0120] The dimensions of the third gripping element 43 are matched with the dimensions of the first protective shell element 41. Generally, the radial dimension (e.g., outer diameter) of the third gripping element 43 is larger than the radial dimension (e.g., outer diameter) of the first protective shell element 41.

[0121] In some of these embodiments, the upper surface of the third gripping element 43 is configured as a plane to facilitate the placement of fingers.

[0122] In some of these embodiments, the third gripping element 43 includes, but is not limited to, a handle.

[0123] Furthermore, the first protective unit 40 also includes a first anti-slip element 44. The first anti-slip element 44 is disposed on the side of the third gripping element 43 for anti-slip purposes.

[0124] The first anti-slip element 44 and the third gripping element 43 are connected in a fixed manner. The fixed connection method includes, but is not limited to, integral molding.

[0125] The dimensions of the first anti-slip element 44 are matched with the dimensions of the third gripping element 43. Generally, the radial dimension (e.g., outer diameter, length, width) of the first anti-slip element 44 is smaller than the radial dimension (e.g., length, width) of the cross section of the third gripping element 43 in which it is located.

[0126] In some embodiments, there are multiple first anti-slip elements 44. These multiple first anti-slip elements 44 are spaced apart along the length and / or width direction of the tip of the third gripping element 43.

[0127] In some of these embodiments, the first anti-slip element 44 is a first anti-slip block.

[0128] How to use this utility model:

[0129] In use, medical staff press and slide the third gripping element 43 with their thumb. The first protective shell element 41 slides relative to the first puncture element 11, and the first sliding element 42 slides relative to the first gripping element 12 to expose the first puncture element 11 and the first gripping element 12. The end of the third gripping element 43 abuts against the first limiting element 22. Then, the first puncture element 11 is used to puncture the patient's skin to collect blood from the vein. The blood flows through the first puncture element 11 into the blood transfusion tube element 21. Then, the second gripping element 32 is held, and the second puncture element 31 is used to connect the blood collection tube. The blood flows through the blood transfusion tube element 21 and the second puncture element 31 into the blood collection tube.

[0130] After blood collection is completed, remove the first puncture element 11, push the third gripping element 43 to move the first protective shell element 41 towards the first puncture element 11 until the first protective shell element 41 completely covers the first puncture element 11; separate the second puncture element 31 from the blood collection tube, keep the blood collection tube, and discard the blood collection needle device as required.

[0131] The technical effects of this utility model are as follows: By utilizing the sliding connection between the first protective unit and the first puncture unit, the first puncture unit can be protected and exposed by pressing and sliding the first protective unit with the thumb to cooperate with the transfusion tube unit and the second puncture unit for blood collection. Furthermore, by placing the first protective unit away from the needle tip of the first puncture unit, the hands of medical personnel do not come into contact with the first puncture unit, which not only reduces occupational exposure and lowers the risk of needlestick injury, but also does not affect the length of the first puncture unit, allowing for normal blood collection. This solves the problems of needlestick injury risk when removing and putting on the blood collection needle and the problem of the protective structure affecting normal blood collection.

[0132] Example 2

[0133] This embodiment is a modified embodiment of embodiment 1.

[0134] like Figure 6 As shown, the blood collection needle device also includes a locking unit 50. The locking unit 50 is disposed on the side of the first protection unit 40 and is limitedly connected to the first puncture unit 10, and is used to lock the relative position of the first protection unit 40 and the first puncture unit 10.

[0135] like Figure 7 As shown, the first puncture unit 10 also includes a first locking element 13. The first locking element 13 passes through the first puncture unit 10 and is locked to the locking unit 50, used to lock the position of the first protection unit 40.

[0136] Specifically, the first locking element 13 is disposed through the first gripping element 12 and is used to lock the position of the first protective shell element 41.

[0137] The dimensions of the first locking element 13 are matched with the dimensions of the first gripping element 12. Generally, the radial dimension (e.g., length, width) of the first locking element 13 is smaller than the radial dimension (e.g., length, width) of the first gripping element 12 to which it is located, and the height of the first locking element 13 is equal to the thickness of the first gripping element 12.

[0138] In some of these embodiments, the first locking element 13 is a first locking hole.

[0139] like Figure 8 As shown, the first protection unit 40 also includes a second sliding element 45. The second sliding element 45 passes through the first protection unit 40, is located near the second end of the first protection unit 40, and is slidably connected to the locking unit 50.

[0140] Specifically, the second sliding element 45 is disposed through the first protective shell element 41.

[0141] The dimensions of the second sliding element 45 are matched with the dimensions of the first protective shell element 41. Generally, the arc length of the second sliding element 45 is less than the arc length of the cross-section of the first protective shell element 41, and the height of the second sliding element 45 is equal to the thickness of the first protective shell element 41.

[0142] In some embodiments, the second sliding element 45 may be connected to the first sliding element 42 or may not be connected to the first sliding element 42.

[0143] In some of these embodiments, the second sliding element 45 is a second sliding groove.

[0144] like Figure 9As shown, the locking unit 50 includes a second locking element 51, a third sliding element 52, and a second limiting element 53. The second locking element 51 is slidably disposed on the side of the first protection unit 40, near the second end of the first protection unit 40, and is locked to the first puncture unit 10. The third sliding element 52 is disposed on the side of the second locking element 51 and is slidably connected to the first protection unit 40, for sliding along the circumference of the first protection unit 40 under the action of the second locking element 51. The second limiting element 53 is disposed at the end of the third sliding element 52 and located inside the first protection unit 40, for preventing the third sliding element 52 from separating from the first protection unit 40.

[0145] Specifically, the second locking element 51 is rotatably disposed on the side of the first protective shell element 41 and is locked to the first locking element 13; the third sliding element 52 is slidably connected to the second sliding element 45; and the second limiting element 53 is disposed inside the first protective shell element 41 to prevent the third sliding element 52 from separating from the first protective shell element 41.

[0146] The dimensions of the second locking element 51 are matched with the dimensions of the first protective shell element 41. Generally, the inner diameter of the second locking element 51 is equal to the outer diameter of the first protective shell element 41, the width of the second locking element 51 is less than the length of the first protective shell element 41, and the arc length of the second locking element 51 is less than the arc length of the first protective shell element 41.

[0147] The dimensions of the second locking element 51 are matched with the dimensions of the second sliding element 45. Generally, the width of the second locking element 51 is greater than the height of the second sliding element 45.

[0148] In some of these embodiments, the second locking element 51 is an arc-shaped locking ring or an arc-shaped locking piece.

[0149] The third sliding element 52 and the second locking element 51 are connected in a fixed manner. The fixed connection method includes, but is not limited to, integral molding.

[0150] The dimensions of the third sliding element 52 are matched with the dimensions of the second sliding element 45. Generally, the width of the third sliding element 52 is smaller than the width of the second sliding element 45, the length of the third sliding element 52 is smaller than the length of the second sliding element 45, and the height of the third sliding element 52 is not less than the height of the second sliding element 45.

[0151] In some embodiments, the third sliding element 52 is a sliding block or a sliding bar.

[0152] The second limiting element 53 and the third sliding element 52 are connected in a fixed manner. The fixed connection method includes, but is not limited to, integral molding.

[0153] The dimensions of the second limiting element 53 are matched with the dimensions of the second sliding element 45. Generally, the width of the second limiting element 53 is greater than the width of the second sliding element 45.

[0154] The dimensions of the second limiting element 53 are matched with the dimensions of the first gripping element 12. Generally, the inner diameter of the second limiting element 53 is larger than the outer diameter of the first gripping element 12.

[0155] In some of these embodiments, the second limiting element 53 is an arc-shaped limiting piece.

[0156] Furthermore, the locking unit 50 also includes a third limiting element 54, which is disposed on the side of the second locking element 51 and is limitedly connected to the first piercing unit 10 to limit the relative position of the locking unit 50 and the first piercing unit 10.

[0157] Specifically, the third limiting element 54 is disposed at the locking end of the second locking element 51 and is limitedly connected to the first locking element 13 to limit the relative position of the second locking element 51 and the first locking element 13.

[0158] The third limiting element 54 and the second locking element 51 are connected in a fixed manner. The fixed connection method includes, but is not limited to, integral molding.

[0159] The dimensions of the third limiting element 54 are matched with the dimensions of the first locking element 13. Generally, the length of the third limiting element 54 is less than the length of the first locking element 13, and the height of the third limiting element 54 is less than the height of the first locking element 13.

[0160] In some embodiments, the sum of the heights of the third limiting element 54 and the second locking element 51 is equal to the height of the first locking element 13.

[0161] In some of these embodiments, the third limiting element 54 is a limiting block.

[0162] Furthermore, the locking unit 50 also includes a second anti-slip element 55. The second anti-slip element 55 is disposed on the side of the second locking element 51 and is used for anti-slip.

[0163] The second anti-slip element 55 and the second locking element 51 are connected in a fixed manner. The fixed connection method includes, but is not limited to, integral molding.

[0164] The dimensions of the second anti-slip element 55 are matched with the dimensions of the second locking element 51. Generally, the width of the second anti-slip element 55 is not greater than the width of the second locking element 51, and the length of the second anti-slip element 55 is less than the arc length of the second locking element 51.

[0165] In some embodiments, there are multiple second anti-slip elements 55. These multiple second anti-slip elements 55 are spaced apart along the length and / or width direction of the side portion of the second locking element 51.

[0166] In some of these embodiments, when there is only one second anti-slip element 55, the second anti-slip element 55 is a second anti-slip block.

[0167] In some embodiments, when there are multiple second anti-slip elements 55, the second anti-slip element 55 is an anti-slip protrusion.

[0168] The usage method of this embodiment is as follows:

[0169] After use, the first protective shell element 41 is placed over the first puncture element 11 using the method of Embodiment 1. Then, the thumb presses the second anti-slip element 55 to rotate the second locking element 51. The second locking element 51 drives the third sliding element 52 to slide along the second sliding element 45. The second limiting element 53 slides relative to the inner wall of the first protective shell element 41 and restricts the relative position of the third sliding element 52 and the second sliding element 45. The second locking element 51 rotates circumferentially along the first protective shell element 41 and enters the first locking element 13. The third limiting element 54 enters the first locking element 13 under the action of external force and is limited to the first locking element 13. That is, the relative position of the first protective shell element 41 and the first puncture element 11 is locked, and the first puncture element 11 is completely covered by the first protective shell element 41.

[0170] Other usage methods are the same as in Example 1.

[0171] The technical effects of this embodiment are as follows: by using the locking unit to lock the connection with the first puncture unit, the first protective unit and the first puncture unit are effectively prevented from sliding relative to each other and exposing the first puncture unit, reducing the risk of being punctured by needles, and solving the problem that the protective structure cannot be completely covered by the blood collection needle.

[0172] Example 3

[0173] This embodiment is a modified embodiment of Embodiments 1 and 2.

[0174] like Figure 10 As shown, the blood collection needle device also includes a second protective unit 60. The second protective unit 60 covers the second puncture unit 30 and is slidably connected to the transfusion tube unit 20 and the second puncture unit 30, respectively, to prevent the second puncture unit 30 from puncturing medical personnel.

[0175] like Figure 11As shown, the transfusion tube unit 20 also includes a fourth limiting element 23. The fourth limiting element 23 is disposed at the second end of the transfusion tube unit 20 and abuts against the second protection unit 60, thereby limiting the range of motion of the second protection unit 60.

[0176] Specifically, the fourth limiting element 23 is disposed at the second end of the transfusion vessel element 21.

[0177] The fourth limiting element 23 is connected to the transfusion tube element 21 by a fixed connection. The fixed connection method includes, but is not limited to, integral molding.

[0178] The dimensions of the fourth limiting element 23 are matched with the dimensions of the transfusion vessel element 21. Generally, the radial dimension (e.g., outer diameter) of the fourth limiting element 23 is larger than the radial dimension (e.g., outer diameter) of the transfusion vessel element 21, and the length of the fourth limiting element 23 is smaller than the length of the transfusion vessel element 21.

[0179] In some of these embodiments, the fourth limiting element 23 is a second limiting ring.

[0180] like Figure 12 As shown, the second puncture unit 30 also includes a fifth limiting element 33. The fifth limiting element 33 is disposed at the first end of the second puncture unit 30 and is limitedly connected to the second protection unit 60 to limit the relative position of the second protection unit 60 and the second puncture unit 30.

[0181] Specifically, the fifth limiting element 33 is disposed on the second gripping element 32 to limit the relative position of the second protection unit 60 and the second gripping element 32.

[0182] The fifth limiting element 33 and the second gripping element 32 are connected in a fixed manner. The fixed connection method includes, but is not limited to, integral molding.

[0183] The dimensions of the fifth limiting element 33 are matched with the dimensions of the second gripping element 32. Generally, the radial dimension (e.g., outer diameter) of the fifth limiting element 33 is larger than the radial dimension (e.g., outer diameter) of the second gripping element 32, and the length of the fifth limiting element 33 is smaller than the length of the second gripping element 32.

[0184] In some of these embodiments, the fifth limiting element 33 is a third limiting ring.

[0185] like Figure 13As shown, the second protective unit 60 includes a second protective shell element 61 and a connecting element 62. The second protective shell element 61 is fitted over the second puncture unit 30 and can slide along the axial direction of the second puncture unit 30 to cover or expose it. The connecting element 62 is disposed at the first end of the second protective shell element 61 and is slidably connected to the transfusion tube unit 20 and detachably connected to the second puncture unit 30, used to fix the relative position of the second protective shell element 61 and the second puncture unit 30.

[0186] Specifically, the second protective shell element 61 is fitted with the second puncture element 31 and can slide along the axial direction of the second puncture element 31 and the second holding element 32 to expose or cover the second puncture element 31; the connecting element 62 is detachably connected to the second holding element 32 and slidably connected to the transfusion tube element 21, and abuts against the fourth limiting element 23 to fix the relative position of the second protective shell element 61 and the second puncture element 31.

[0187] The dimensions of the second protective shell element 61 are matched with the dimensions of the second puncture element 31. Generally, the radial dimension (e.g., inner diameter) of the second protective shell element 61 is larger than the radial dimension (e.g., outer diameter) of the second puncture element 31, and the length of the second protective shell element 61 is greater than the length of the second puncture element 31.

[0188] The dimensions of the second protective housing element 61 are matched with the dimensions of the second gripping element 32. Generally, the radial dimension (e.g., inner diameter) of the second protective housing element 61 is larger than the radial dimension (e.g., outer diameter) of the second gripping element 32.

[0189] In some of these embodiments, the second protective shell element 61 is made of plastic.

[0190] In some of these embodiments, the second protective housing element 61 is a second protective housing.

[0191] The connection between the connecting element 62 and the second protective shell element 61 is a fixed connection. The fixed connection method includes, but is not limited to, integral molding.

[0192] The dimensions of the connecting element 62 are matched with the dimensions of the second gripping element 32. Generally, the radial dimension (e.g., inner diameter) of the connecting element 62 is not greater than the radial dimension (e.g., outer diameter) of the second gripping element 32.

[0193] The dimensions of the connecting element 62 are matched with the dimensions of the second protective housing element 61. Generally, the radial dimension (e.g., outer diameter) of the connecting element 62 is smaller than the radial dimension (e.g., outer diameter) of the second protective housing element 61.

[0194] The dimensions of the connecting element 62 are matched with the dimensions of the fourth limiting element 23. Generally, the radial dimension (e.g., inner diameter) of the connecting element 62 is smaller than the radial dimension (e.g., outer diameter) of the fourth limiting element 23.

[0195] In some embodiments, the connecting element 62 is made of an elastic material, including but not limited to rubber.

[0196] In some of these embodiments, the connecting element 62 is a connecting sleeve.

[0197] Furthermore, the second protective unit 60 also includes a sixth limiting element 63. The sixth limiting element 63 is disposed at the second end of the second protective shell element 61 and is limitedly connected to the second puncture unit 30 to limit the relative position of the second protective shell element 61 and the second puncture unit 30.

[0198] Specifically, the sixth limiting element 63 is connected to the fifth limiting element 33 to limit the relative position of the second protective shell element 61 and the second gripping element 32.

[0199] The sixth limiting element 63 and the second protective shell element 61 are connected by a fixed connection. The fixed connection method includes, but is not limited to, integral molding.

[0200] The dimensions of the sixth limiting element 63 are matched with the dimensions of the second protective shell element 61. Generally, the radial dimension (e.g., outer diameter) of the sixth limiting element 63 is not greater than the radial dimension (e.g., outer diameter) of the second protective shell element 61, and the length of the sixth limiting element 63 is less than the length of the second protective shell element 61.

[0201] The dimensions of the sixth limiting element 63 are matched with the dimensions of the second gripping element 32. Generally, the radial dimension (e.g., inner diameter) of the sixth limiting element 63 is larger than the radial dimension (e.g., outer diameter) of the second gripping element 32.

[0202] The dimensions of the sixth limiting element 63 are matched with those of the fifth limiting element 33. Generally, the radial dimension (e.g., inner diameter) of the sixth limiting element 63 is smaller than the radial dimension (e.g., outer diameter) of the fifth limiting element 33.

[0203] In some of these embodiments, the sixth limiting element 63 is the fourth limiting ring.

[0204] Furthermore, the second protection unit 60 also includes a fixing element 64. The fixing element 64 is disposed at the second end of the second protective shell element 61 and is detachably connected to the blood collection tube for fixing the blood collection tube.

[0205] The connection between the fixing element 64 and the second protective shell element 61 is a fixed connection. The fixed connection method includes, but is not limited to, integral molding.

[0206] The dimensions of the fixing element 64 are matched with the dimensions of the second protective housing element 61. Generally, the radial dimension (e.g., inner diameter) of the fixing element 64 is larger than the radial dimension (e.g., outer diameter) of the second protective housing element 61.

[0207] In some embodiments, the fixing element 64 includes a connector, a fixing ring, and a notch. The connector is connected to the second protective shell element 61 and the fixing ring, respectively. The fixing ring is coaxially arranged with the second protective shell element 61 and is used to engage the blood collection tube. The notch is located on the side of the fixing ring and is used to assist the fixing ring in quickly connecting to or disconnecting from the blood collection tube.

[0208] The usage method of this embodiment is as follows:

[0209] When connecting the second puncture element 31 to the blood collection tube, the sliding connecting element 62 separates it from the second holding element 32, and drives the second protective shell element 61 to separate from the second puncture element 31 to expose the second puncture element 31. The fourth limiting element 23 is limited to the connecting element 62, limiting the sliding range of the second protective shell element 61 in the blood collection tube element 21. The fifth limiting element 33 is limited to the sixth limiting element 63. The fixing element 64 is clamped to the tube cap of the blood collection tube. Then, the second puncture element 31 is connected to the blood collection tube element 21 using the method of Embodiment 1 or Embodiment 2.

[0210] After blood collection is completed, the second puncture element 31 and the fixing element 64 are separated from the blood collection tube. Then, the sliding connecting element 62 drives the second protective shell element 61 to slide toward the second puncture element 31, and the connecting element 62 is engaged with the second holding element 32. The second protective shell element 61 is completely covered by the second puncture element 31.

[0211] Other usage methods are the same as in Example 1 or Example 2.

[0212] The technical effects of this embodiment are as follows: The second protection unit and the second puncture unit are detachably connected and slidably connected to the blood collection tube element. The operation is performed at the distal end of the second puncture unit without direct contact with the second puncture unit. This not only simplifies the operation and does not affect blood collection, but also provides effective protection for the second puncture unit. At the same time, fixing the blood collection tube can reduce the risk of blood collection tube ricocheting, improve the safety of blood collection needle use, and solve the problem that the blood collection needle only has protection on one side.

[0213] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A blood collection needle device to prevent needle pricks, characterized in that, include: The first puncture unit is used to puncture the patient's skin to collect blood. A blood transfusion unit, wherein a first end of the blood transfusion unit is connected to a second end of the first puncture unit, for outputting blood; The second puncture unit has a first end connected to the second end of the infusion tube unit and a second end connected to the blood collection tube, and is used to puncture the blood collection tube and output blood to the blood collection tube. A first protective unit is slidably disposed outside the first puncture unit and slidably connected to the transfusion tube unit to prevent the first puncture unit from injuring medical personnel.

2. The blood collection needle device according to claim 1, characterized in that, The first puncture unit includes: A first puncture element, the second end of which is connected to the first end of the blood transfusion unit, is used to puncture the patient's skin and deliver blood to the blood transfusion unit; A first gripping element, disposed at the second end of the first piercing element, is used for gripping; and / or The second piercing unit includes: The second puncturing element has a first end connected to the second end of the blood transfusion unit and a second end connected to the blood collection tube, and is used to puncture the blood collection tube and output blood to the blood collection tube. The second gripping element is sleeved on the first end of the second puncture element and connected to the second end of the transfusion tube unit for gripping.

3. The blood collection needle device according to claim 1, characterized in that, The infusion tube unit includes: A blood transfusion element, wherein a first end of the blood transfusion element is connected to a second end of the first puncture unit, and a second end of the blood transfusion element is connected to a first end of the second puncture unit, for outputting blood to the second puncture unit; and / or The first protection unit includes: The first protective shell element covers the first puncture unit and is slidably connected to the first puncture unit and the transfusion tube unit, respectively, to prevent the first puncture unit from puncturing medical personnel. A first sliding element is disposed on the first protective shell element and slidably connected to the first puncture unit, for sliding the first protective shell element; A third gripping element is disposed at the second end of the first protective shell element and is slidably connected to the first puncture unit and the transfusion vessel unit, respectively, for gripping.

4. The blood collection needle device according to claim 3, characterized in that, The blood transfusion unit also includes: A first limiting element is disposed at a first end of the transfusion vessel element and abuts against the first protective unit, for limiting the range of motion of the first protective unit; and / or The first protection unit further includes: A first anti-slip element is disposed on the side of the third gripping element for preventing slippage.

5. The blood collection needle device according to any one of claims 1 to 4, characterized in that, Also includes: A locking unit, disposed on the side of the first protective unit and connected to the first piercing unit for limiting connection, is used to lock the relative position of the first protective unit and the first piercing unit; and / or The second protective unit covers the second puncture unit and is slidably connected to the transfusion tube unit and the second puncture unit, respectively, to prevent the second puncture unit from injuring medical personnel.

6. The blood collection needle device according to claim 5, characterized in that, The first piercing unit further includes: A first locking element, which penetrates the first puncture unit and is locked to the locking unit, is used to lock the position of the first protective unit; and / or The blood transfusion unit also includes: A fourth limiting element is disposed at the second end of the transfusion tube unit and abuts against the second protective unit, for limiting the range of motion of the second protective unit; and / or The second piercing unit also includes: A fifth limiting element is disposed at the first end of the second piercing unit and is connected to the second protective unit for limiting the relative position of the second protective unit and the second piercing unit; and / or The first protection unit further includes: The second sliding element passes through the first protection unit and is located near the second end of the first protection unit, and is slidably connected to the locking unit.

7. The blood collection needle device according to claim 5, characterized in that, The locking unit includes: The second locking element is slidably disposed on the side of the first protection unit and near the second end of the first protection unit, and is locked to the first puncture unit; A third sliding element is disposed on the side of the second locking element and slidably connected to the first protection unit, for sliding along the circumference of the first protection unit under the action of the second locking element; The second limiting element is disposed at the end of the third sliding element and located inside the first protection unit, for preventing the third sliding element from separating from the first protection unit.

8. The blood collection needle device according to claim 7, characterized in that, The locking unit further includes: A third limiting element is disposed on the side of the second locking element and is connected to the first piercing unit for limiting the relative position of the locking unit and the first piercing unit; and / or The second anti-slip element is disposed on the side of the second locking element and is used for anti-slip.

9. The blood collection needle device according to claim 5, characterized in that, The second protection unit includes: The second protective shell element is sleeved on the second piercing unit and can slide along the axial direction of the second piercing unit to cover or expose the second piercing unit. A connecting element is disposed at the first end of the second protective shell element and is slidably connected to the transfusion tube unit and detachably connected to the second puncture unit, for fixing the relative position of the second protective shell element and the second puncture unit.

10. The blood collection needle device according to claim 9, characterized in that, The second protection unit also includes: A sixth limiting element is disposed at the second end of the second protective shell element and is connected to the second piercing unit for limiting the relative position of the second protective shell element and the second piercing unit; and / or The second protection unit also includes: A fixing element is disposed at the second end of the second protective shell element and is detachably connected to the blood collection tube for fixing the blood collection tube.

Images