Protective device for preventing disposable steel needle from being punctured

Abstract

The utility model provides a protection device for preventing a disposable steel needle from being punctured, and belongs to the technical field of medical instruments. The syringe comprises a protective sleeve shell, a syringe needle and a hose, the syringe needle is fixedly sleeved at the end of the hose, and the protective sleeve shell is clamped on the outer side of the hose in a sliding manner; the end of the limiting clamping block extends to the outer side of the protective sleeve shell, movement of the connecting plate and the needle head is controlled through the limiting sliding groove, control over the needle head is increased, and the possibility of misoperation is reduced. The connecting spring provides necessary elastic force for the limiting clamping block, so that the limiting clamping block can be clamped into the corresponding limiting part more stably, meanwhile, elastic force is provided for releasing the needle head, and the stability and reliability of the device are enhanced. Only when a user actively performs operation, the needle head can be stored or released, and the design can prevent the device from being activated in advance due to other factors or accidental touch, so that the risk of needle stick injury caused by exposure of the needle head is avoided, and the accuracy and safety of the device during use can be improved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a protective device for preventing acupuncture from a disposable steel needle. Background Art

[0002] When disposable blood transfusion and infusion needles are in contact with blood, medical staff may be accidentally stabbed by the sharp tip of the needle during recycling, which may lead to infection with hepatitis, AIDS and other diseases, seriously affecting the physical safety of medical staff. Taking AIDS as an example, the risk of contracting HBV due to needle stabbing is between 1 / 6 and 1 / 20. Therefore, certain protective measures should be taken when recycling infusion needles to avoid such incidents.

[0003] At present, a small number of anti-needlestick protection devices are used on this type of needles to protect the safety of medical staff. In order to smoothly achieve the anti-needlestick protection effect after use, the anti-needlestick protection device of the prior art generally has an opening structure, and makes the opening as smooth as possible to facilitate smooth activation. While the opening structure and smooth surface of the anti-needlestick protection device of the prior art are conducive to activation, they are also prone to misactivation, that is, if the puncture needle is activated before it is used clinically, the needle will be retracted into the protective cover in advance, resulting in the needle being unable to be used normally. In this case, not only will the treatment be delayed, but a new needle may need to be replaced, increasing medical costs and time.

[0004] How to invent a protective device against acupuncture with disposable steel needles to improve these problems has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a protective device for preventing acupuncture with a disposable steel needle, aiming to improve the problems mentioned in the above background.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a protective device for preventing acupuncture from a disposable steel needle, comprising a protective sleeve, a needle and a hose, the needle being fixedly sleeved on the end portion of the hose, the protective sleeve being slidably clamped on the outer side of the hose, the upper and lower ends of the protective sleeve being provided with mounting holes matching the outer diameter of the hose, the outer side of the hose located inside the protective sleeve being fixedly connected with a connecting plate, both sides of the connecting plate being fixedly connected with limiting blocks, the left and right side walls of the protective sleeve being penetrated by limiting slide grooves matching the limiting blocks, the upper and lower ends of the limiting slide groove being respectively provided with an upper limit portion and a lower limit portion, the upper limit portion and the lower limit portion being fixedly provided with a baffle plate on one side close to the limiting slide groove, and the upper side wall of the connecting plate is elastically connected to the upper side wall of the inner cavity of the protective sleeve through a connecting spring.

[0008] Preferably, the connecting plate is located inside the protective shell, and the end of the limiting block extends to the outside of the protective shell.

[0009] Preferably, the upper limit portion and the lower limit portion located at the same limit slide groove are respectively located on the left and right sides of the limit slide groove, and the two upper limit portions and the lower limit portions located on different side walls of the protective cover are arranged opposite to each other.

[0010] Preferably, the length of the limiting sliding groove is greater than the distance between the lower side wall of the connecting plate and the tip of the needle.

[0011] Preferably, the distance between the upper limit portion, the lower limit portion and the adjacent baffle is greater than the width of the limit block.

[0012] Preferably, the height of the baffle and the distance between the upper end of the baffle and the end of the limiting slide groove are both greater than the height of the limiting block.

[0013] The beneficial effects of the utility model are:

[0014] The end of the limit card block extends to the outside of the protective shell, and the movement of the connecting plate and the needle is controlled by the limit slide groove, which increases the control of the needle and reduces the possibility of misoperation; the connecting spring provides the necessary elastic force for the limit card block, so that it can be more stably inserted into the corresponding limit part, and also provides elastic force for releasing the needle, which enhances the stability and reliability of the device; the needle will only be stored or released when the user actively operates it. Such a design can prevent the device from being activated prematurely due to other factors or accidental touch, thereby avoiding the risk of needlestick injuries caused by needle exposure, which can improve the accuracy and safety of the device when used, reduce the possibility of misoperation, and provide better protection for medical staff and patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a protective device for preventing acupuncture with a disposable steel needle provided in an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of a protective cover shell of a protective device for preventing acupuncture with a disposable steel needle provided in an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a protective device for preventing acupuncture with a disposable steel needle provided by the embodiment of the utility model when activated and used;

[0019] Figure 4 It is a schematic structural diagram of a protective device for preventing acupuncture with a disposable steel needle provided in an embodiment of the utility model when it is not activated.

[0020] In the figure: 1, protective shell; 101, mounting hole; 2, limit slide groove; 201, upper limit part; 202, lower limit part; 3, needle; 4, infusion tube; 5, baffle; 6, connecting spring; 7, connecting plate; 701, limit block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] Reference Figure 1-3 , a protective device for preventing acupuncture with a disposable steel needle, comprising a protective sleeve 1, a needle 3 and an infusion tube 4, the needle 3 is fixedly sleeved on the end of the infusion tube 4, the protective sleeve 1 is slidably clamped on the outside of the infusion tube 4, the upper and lower ends of the protective sleeve 1 are provided with mounting holes 101 matching the outer diameter of the infusion tube 4, the outer side of the infusion tube 4 located inside the protective sleeve 1 is fixedly connected with a connecting plate 7, both sides of the connecting plate 7 are fixedly connected with a limiting block 701, the left and right side walls of the protective sleeve 1 are penetrated with a limiting slide 2 matching the limiting block 701, the upper and lower ends of the limiting slide 2 are respectively provided with an upper limit portion 201 and a lower limit portion 202, the upper limit portion 201 and the lower limit portion 202 are fixedly provided with a baffle 5 on one side close to the limiting slide 2, and the upper side wall of the connecting plate 7 is elastically connected to the upper side wall of the inner cavity of the protective sleeve 1 by a connecting spring 6;

[0024] It should be noted that the connecting plate 7 is located inside the protective shell 1, ensuring that it can rotate and slide inside the protective shell 1, and the end of the limit block 701 extends to the outside of the protective shell 1, and the movement of the connecting plate 7 can be controlled by the limit block 701;

[0025] Reference Figure 3-4The upper limit portion 201 and the lower limit portion 202 located at the same limit slot 2 are respectively located on the left and right sides of the limit slot 2, and the two upper limit portions 201 and the lower limit portions 202 located on different side walls of the protective shell 1 are arranged opposite to each other. The connecting plate 7 can be screwed into the corresponding limit portion by rotating left and right. The length of the limit slot 2 is greater than the distance between the lower side wall of the connecting plate 7 and the tip of the needle 3, ensuring that the needle 3 can be effectively stored;

[0026] It should be noted that the distance between the upper limit portion 201, the lower limit portion 202 and the adjacent baffle plate 5 is greater than the width of the limit block 701, which facilitates the insertion and removal of the limit block 701. The height of the baffle plate 5 and the distance between the upper end of the baffle plate 5 and the end of the limit slide groove 2 are both greater than the height of the limit block 701, ensuring that the limit block 701 can be inserted into the corresponding limit portion through the gap between the upper end of the baffle plate 5 and the end of the limit slide groove 2. The limit block 701 can be elastically tightened or tensioned in cooperation with the elastic force of the connecting spring 6.

[0027] The working principle of the protective device for preventing acupuncture with a disposable steel needle is as follows: the protective cover 1 is the outer component of the device, which is designed to be able to slide along the infusion tube 4 to cover the needle 3 when needed. The needle 3 is fixed to the end of the infusion tube 4 and is used to perform medical operations such as injection or extraction of liquid. The upper and lower ends of the protective cover 1 each have a mounting hole 101, which matches the outer diameter of the infusion tube 4 so that the protective cover 1 can slide and remain in a proper position;

[0028] The sliding mechanism of the protective cover 1 is designed to slide automatically or manually to cover the needle 3 after use to prevent the needle 3 from being exposed and causing needlestick injuries. The length of the limiting slide 2 is determined according to the distance between the lower side wall of the connecting plate 7 and the tip of the needle 3 to ensure sufficient moving space to cover the needle 3.

[0029] The distance between the upper limit portion 201, the lower limit portion 202 and the adjacent baffle plate 5 is sufficient to accommodate the limit block 701, so that the limit block 701 can pass through the gap between the baffle plate 5 and the end of the limit slide groove 2 to move to the corresponding limit position, and the connecting spring 6 provides the necessary elastic force, which provides a tightening or tensioning force, so that the limit block 701 can be more stably inserted into the corresponding limit portion, and also provides elastic force for releasing the needle 3;

[0030] When medical operation is needed, hold the protective cover 1 tightly and manually pull up the limit card block 701. When it touches the top of the limit slide groove 2, rotate the limit card block 701 counterclockwise, so that the limit card block 701 can be released from the upper limit portion 201. Then, push the limit card block 701 along the limit slide groove 2. When it touches the bottom of the limit slide groove 2, rotate the limit card block 701 counterclockwise. Under the elastic force of the connection spring 6 when it is stretched, the limit card block 701 will be snapped and fall into the lower limit portion 202.

[0031] After the medical operation is completed, the user pushes the limit block 701 downwards, and rotates the limit block 701 clockwise when it touches the bottom of the limit slide groove 2, so that the limit block 701 can be released from the lower limit portion 202, and the protective cover 1 is slid through the connecting plate 7 and the limit block 701 to cover the needle 3, thereby protecting the medical staff and the patient from needlestick injuries. The baffle 5 ensures that after the protective cover 1 slides into place, the limit block 701 is locked in a proper position, thereby fixing the protective cover 1 in a position covering the needle 3;

[0032] The needle 3 will only be stored or released when the user actively operates it. This design can prevent the device from being activated prematurely due to other factors or accidental touches, thereby avoiding the risk of needlestick injuries caused by the exposure of the needle 3, improving the accuracy and safety of the device when used, and reducing the possibility of misoperation.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0035] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A protective device for preventing acupuncture with a disposable steel needle, comprising a protective housing (1), a needle (3) and an infusion tube (4), characterized in that: The needle (3) is fixedly sleeved on the end of the infusion tube (4), the protective sleeve (1) is slidably clamped on the outside of the infusion tube (4), the upper and lower ends of the protective sleeve (1) are provided with mounting holes (101) matching the outer diameter of the infusion tube (4), the outer side of the infusion tube (4) located inside the protective sleeve (1) is fixedly connected with a connecting plate (7), both sides of the connecting plate (7) are fixedly connected with limit blocks (701), and the protective sleeve (1) is fixedly connected to the outer side of the infusion tube (4). The left and right side walls are both provided with a limiting slide groove (2) matching the limiting block (701), and the upper and lower ends of the limiting slide groove (2) are respectively provided with an upper limit portion (201) and a lower limit portion (202), and a baffle (5) is fixedly provided on one side of the upper limit portion (201) and the lower limit portion (202) close to the limiting slide groove (2), and the upper side wall of the connecting plate (7) is elastically connected to the upper side wall of the inner cavity of the protective shell (1) via a connecting spring (6).

2. A protective device for preventing acupuncture with a disposable steel needle according to claim 1, characterized in that: The connecting spring (6) is sleeved on the outside of the infusion tube (4), the connecting plate (7) is located inside the protective sleeve (1), and the end of the limiting block (701) extends to the outside of the protective sleeve (1).

3. The protective device for preventing acupuncture with disposable steel needles according to claim 1, characterized in that: The upper limit portion (201) and the lower limit portion (202) located at the same limit slide groove (2) are respectively located on the left and right sides of the limit slide groove (2), and the two upper limit portions (201) and the lower limit portions (202) located on different side walls of the protective shell (1) are arranged opposite to each other.

4. The protective device for preventing acupuncture with disposable steel needles according to claim 1, characterized in that: The length of the limiting sliding groove (2) is greater than the distance between the lower side wall of the connecting plate (7) and the tip of the needle (3).

5. The protective device for preventing acupuncture with disposable steel needles according to claim 1, characterized in that: The distance between the upper limit portion (201), the lower limit portion (202) and the adjacent baffle (5) is greater than the width of the limit block (701).

6. The protective device for preventing acupuncture with disposable steel needles according to claim 1, characterized in that: The height of the baffle (5) and the distance between the upper end of the baffle (5) and the end of the limiting slide groove (2) are both greater than the height of the limiting block (701).

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