WO2023065424A1 - 统一注射深度伸缩型胰岛素注射器 - Google Patents

统一注射深度伸缩型胰岛素注射器 Download PDF

Info

Publication number
WO2023065424A1
WO2023065424A1 PCT/CN2021/129985 CN2021129985W WO2023065424A1 WO 2023065424 A1 WO2023065424 A1 WO 2023065424A1 CN 2021129985 W CN2021129985 W CN 2021129985W WO 2023065424 A1 WO2023065424 A1 WO 2023065424A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
stopper
injection depth
cavity
positioning sleeve
Prior art date
Application number
PCT/CN2021/129985
Other languages
English (en)
French (fr)
Inventor
钱晓晨
杨勇
Original Assignee
苏州和林微纳科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州和林微纳科技股份有限公司 filed Critical 苏州和林微纳科技股份有限公司
Publication of WO2023065424A1 publication Critical patent/WO2023065424A1/zh

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/46—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for controlling depth of insertion

Definitions

  • the invention relates to the technical field of medical devices, in particular to a unified injection depth retractable insulin syringe.
  • Insulin syringes are currently commonly used injection tools for insulin therapy. They are used with needles for insulin syringes to complete subcutaneous injections.
  • the thickness of the human skin is generally 0.5-3mm (excluding the subcutaneous tissue).
  • the safe injection depth of insulin is generally 4-6mm.
  • the needle types commonly used in clinical practice are 4mm, 5mm, 6mm, 8mm and 12.7mm.
  • Most of the existing insulin syringe needles use 4-6mm needles to prevent injection into muscle tissue, causing insulin to absorb too quickly and unstable blood sugar control in the body.
  • short needles are generally more expensive, and the injection depth of the needle cannot be accurately controlled.
  • the conventional syringe mechanism includes an injection push rod 101 arranged in the syringe sleeve 102.
  • the head of the injection push rod 101 is made of plastic silicone, which is interference fit with the inner cavity of the syringe sleeve 102. Under the action, it is responsible for drug delivery.
  • the head of the syringe sleeve 102 is provided with an external thread, the injection needle 104 and the needle holder 103 are in a fixed state, and the inner cavity of the needle holder 103 is provided with an internal thread, and the needle holder 103 is connected to the syringe sleeve 102 through the rotating thread. connect.
  • the needle of the conventional syringe is fixed in the needle seat.
  • the injection depth can only be controlled manually during the injection; in addition, the patient can directly see the needle during the injection of the conventional syringe, so before the injection , The needle exposed outside will cause the patient to have a sense of fear, fainting of needles, etc., causing discomfort to the patient.
  • the purpose of the present invention is to provide a telescopic insulin syringe with uniform injection depth, which overcomes the problem that needles of different specifications and lengths cannot accurately achieve safe injection (that is, the injection depth is uniform between 4-6mm), and at the same time eliminates the need for injection.
  • a unified injection depth telescopic insulin syringe including a syringe body, a stopper, a positioning sleeve and a stop nut, the stopper has an inner cavity, and the outer wall of the stopper A plurality of spacer wings are equidistantly arranged, the syringe body is installed in the inner cavity, and the needle protrudes from the stopper, the positioning sleeve has a middle cavity, and the upper part of the outer wall of the positioning sleeve is equidistantly provided with a plurality of vertical wings.
  • the lower part of its outer wall is provided with external thread
  • the limit wing is embedded in the vertical chute and extends out of the positioning sleeve
  • the stopper can be vertically slidably arranged in the middle cavity
  • the limit nut It has an outer cavity, the outer cavity is provided with an internal thread, and the positioning sleeve is threaded into the outer cavity.
  • the limit nut When the limit nut is rotated, its upper end surface abuts against the limit wing to limit the needle from extending out of the positioning sleeve.
  • the length of the shrink sleeve assembly is installed on the lower part of the positioning sleeve to hide the needle in the non-injection state. When injecting, the lower end of the shrink sleeve assembly touches the human skin and the shrink sleeve assembly is squeezed to make the needle protrude. Out of the lower end of the shrink sleeve assembly.
  • the stopper has a bottom wall, the bottom wall is provided with a through hole communicating with the inner cavity, the needle seat of the syringe body abuts on the bottom wall, and the needle goes through Extend the limiter behind the through hole.
  • a plurality of positioning wings are equidistantly arranged on the outer wall of the syringe body, and the positioning wings are located above the limiter and embedded in the vertical chute.
  • the number of the position-limiting wings, the positioning wings and the vertical chute is equal to two to six.
  • the positioning sleeve is provided with an identification number used to indicate the length of the needle at the external thread
  • the limit nut is provided with a display hole, and the identification number is displayed through the display hole when the limit nut is rotated .
  • the identification number is an integer from 4 to 13, and its unit is mm.
  • the thread pitch of the internal thread and the thread pitch of the external thread are both 1 mm.
  • the uniform injection depth retractable insulin syringe also includes a shrink sleeve assembly
  • the shrink sleeve assembly includes a bottom plate and a plurality of guide posts, and an opening for the needle to pass is provided in the middle of the bottom plate, and a plurality of the The guide pillars are fixed on the bottom plate at equal intervals, and are located on the side of the opening, and pass upwards through the mounting plate arranged on the inner wall of the cavity. Abuts against mounting plate and base plate.
  • the number of the guide pillars is greater than or equal to three.
  • the present invention has the following beneficial effects.
  • the needle is hidden in the shrink sleeve assembly during the injection process, which eliminates the fear of the injectee about the needle, eliminates the pain, is not easy to have the fear of injection, and realizes the comfort during the treatment and rehabilitation process.
  • Fig. 1 is a structural diagram of the present invention.
  • Fig. 2 is a structural schematic view of the components of the present invention before assembly.
  • Fig. 3 is a cross-sectional view of the components of the present invention before assembly.
  • Fig. 4 is a schematic diagram of the structure of the present invention when it is not injected.
  • Fig. 5 is a schematic diagram of the structure of the present invention when the injection is completed.
  • Fig. 6 is a schematic structural view of a conventional syringe.
  • the unified injection depth retractable insulin syringe includes a syringe body 10, a stopper 20, a positioning sleeve 30, a stopper nut 40 and a shrink sleeve assembly 50, the stopper 20 has an inner cavity 200, The outer wall of the stopper 20 is provided with three stopper wings 21 at equal intervals.
  • the syringe body 10 is installed in the inner cavity 200, and the needle 104 protrudes from the stopper 20.
  • the positioning sleeve 30 has a middle cavity 300.
  • the positioning sleeve The upper part of the outer wall of the pipe 30 is equidistantly provided with three vertical chute 31, the lower part of the outer wall is provided with an external thread 32, the stop wing 21 is embedded in the vertical chute 31 and stretches out the positioning sleeve 30, the stopper 20 can be vertically
  • the straight sliding is set in the middle cavity 300
  • the limit nut 40 has an outer cavity 400
  • the outer cavity 400 is provided with an internal thread 41
  • the positioning sleeve 30 is threaded in the outer cavity 400, when the limit nut 40 is rotated, Its upper end surface abuts against the limiting wing 21 for limiting the length of the needle 104 protruding from the positioning sleeve 30 .
  • the uniform injection depth retractable insulin syringe also includes a shrink sleeve assembly 50, which is installed at the lower part of the positioning sleeve and is used to hide the needle in the non-injection state.
  • a shrink sleeve assembly 50 When injecting, the lower end of the shrink sleeve assembly is in contact with human skin Afterwards, the shrink sleeve assembly is extruded so that the needle protrudes from the lower end of the shrink sleeve assembly.
  • the shrink sleeve assembly 50 includes a base plate 51 and a plurality of guide posts 52.
  • the middle part of the base plate 51 is provided with an opening 511 for the needle 104 to pass through.
  • the plurality of guide posts 52 are fixed on the base plate 51 at equal intervals and are located beside the opening 511.
  • the outer side of the guide post 52 is sheathed with a spring 53, and the upper and lower ends of the spring 53 abut against the mounting plate 34 and the bottom plate 51 respectively; the number of guide posts 52 More than or equal to three, preferably set to three, the upper part of the guide post after passing through the mounting plate has an expansion head 521 to prevent it from falling off from the mounting plate.
  • the stopper 20 has a bottom wall 22, the bottom wall 22 is provided with a through hole 221 communicating with the inner cavity 200, the needle seat 103 of the syringe body 10 abuts against the bottom wall 22, and the needle 104 passes through the through hole 221
  • the lower end of the syringe body can be firmly fixed in the inner cavity of the limiter by setting the bottom wall, which improves the installation stability.
  • the outer wall of the syringe body 10 is equidistantly provided with a plurality of positioning wings 11, the positioning wings 11 are located above the stopper 20, and embedded in the vertical chute 31, the positioning wings 11 can prevent the syringe body from being limited.
  • the positioning wing and the stopper wing move up and down in the vertical chute, and the positions of the two limit the distance that the combination of the syringe body and the stopper moves up and down in the positioning sleeve .
  • the number of spacer wings 21, positioning wings 11 and vertical chute 31 are equal, and are all three to six. In the present invention, three are preferred, and they are arranged axisymmetrically respectively, so that the movement stability of each component can be guaranteed. resistance without lateral offset.
  • the upper part and the lower part of the syringe sleeve 102 are unequal in diameter, and the upper part has a larger diameter.
  • the upper part of the syringe body is embedded in the cavity and can be in contact with the inner wall of the cavity, which also ensures the stability of the syringe sleeve when moving up and down.
  • the positioning sleeve 30 is provided with an identification number 33 for indicating the length of the needle used at the external thread 32
  • the limit nut 40 is provided with a display hole 42; when the limit nut 40 is rotated, the mark is displayed through the display hole 42 Number 33; the length of the general needle head is 4-13mm, so the identification number 33 is an integer from 4 to 13, and its unit is mm; the thread pitch of the internal thread 41 and the thread pitch of the external thread 32 are both 1mm. Therefore, each revolution, the identification number read in the display hole indicates that the length of the needle has been adjusted by 1mm. Taking the used needle length as 8mm as an example, it is only necessary to rotate the limit nut 40 until the display hole 42 is displayed as 8, which indicates that the injection depth has been controlled to a uniformly set safe injection depth.
  • the syringe body 10 is installed in the inner cavity 200 of the stopper 20, and then the stopper 20 is installed in the middle cavity 300 of the positioning sleeve 30, wherein the stopper 20 on the outer wall of the stopper 21 Embedded in the vertical chute 31 to ensure the accuracy of the stopper 20 moving vertically up and down in the middle cavity 300, the stop nut 40 is threaded on the outer wall of the positioning sleeve 30, the stop wing 31 and the stop nut The upper end of 40 is abutted against, and the limit nut 40 moves up and down outside the positioning sleeve 30 by rotation, and the position of the stopper 20 in the middle cavity 300 is limited by limiting the position of the limit wing 31, thereby limiting the position of the position limiter.
  • the position of the syringe body 10 in the inner cavity 300 of the syringe 20 defines the length that the needle 104 can protrude from the lower end of the positioning sleeve 30 .
  • the needle 104 is located in the shrink sleeve assembly 50.
  • the stop nut 40 is first rotated according to the length of the needle used until the number displayed in the display hole 42 is the length of the needle. , so as to control the injection depth at a uniformly set safe injection depth, hold the syringe sleeve 102 tightly to perform the injection action, when the bottom plate 51 of the shrink sleeve assembly 50 touches the human body, under the action of force, the spring is compressed, and the needle passes through the bottom plate After the upper hole is pierced into the skin, the syringe movement is completed. At this time, press and hold the injection push rod to slowly inject the drug.
  • the present invention overcomes the selection of the needle length of the syringe, avoids the limitation and specificity of the needle length when selecting the needle length, and can adapt to the length of the injection needle in a large range; moreover, it can uniformly adjust the injection depth of the needle.
  • the synergistic effect of the position nut, the positioning sleeve and the stopper controls the protruding length of the needle, thereby improving the safety of injection.
  • the needle is always hidden in the shrink sleeve assembly during the injection process, which eliminates the fear of the needle for the injected person, eliminates the pain, is not easy to produce fear of injection, and achieves comfort during the treatment and rehabilitation process. Therefore, the design structure is reasonable, the operation is convenient, the use is more efficient, and the application process is more humanized.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

统一注射深度伸缩型胰岛素注射器，包括注射器本体（10）、限位器（20）、定位套管（30）、限位螺母（40）和收缩套组件（50），限位器（20）具有内腔（200），其外壁上设有限位翼（21），注射器本体（10）安装于内腔（200）内，针头（104）伸出限位器（20），定位套管（30）具有中腔（300），其外壁上部设有竖直滑槽（31），下部设有外螺纹（32），限位翼（21）嵌入竖直滑槽（31）内且伸出定位套管（30），限位器（20）可竖直滑移的设置于中腔（300）内，限位螺母（40）具有外腔（400），外腔（400）内设有内螺纹（41），定位套管（30）螺纹连接于外腔（400）内，当转动限位螺母（40）时其上端面与限位翼（21）相抵接用于限制针头（104）伸出定位套管（30）的长度。本注射器克服了注射深度受针头（104）长度的制约，避免了注射深度只能人为控制的弊端，同时消除了被注射者对针头（104）的恐惧，实现了在治疗康复过程中的舒适性。

Description

统一注射深度伸缩型胰岛素注射器 技术领域
本发明涉及医疗器械技术领域，尤其涉及一种统一注射深度伸缩型胰岛素注射器。
 背景技术
随着糖尿病患者的不断增多，日常的胰岛素注射已经非常频繁。胰岛素注射器是目前胰岛素治疗常用的注射工具，配合胰岛素注射器用针头使用，完成皮下注射。人体皮肤厚度一般为0.5 - 3毫米（不包括皮下组织），为让针头注射到皮下组织，且防止注射到肌肉，胰岛素安全注射深度一般为4-6mm。
目前临床常用的针头型号4mm、5mm、6mm、8mm和12.7mm， 现有胰岛素注射器针头大多采用4-6mm的针头，以防止注射到肌肉组织，使胰岛素吸收过快，体内血糖控制不稳定。但短针头价格普遍较贵，而且也无法准确控制针头的注射深度。
如图6所示，常规的注射器机构包括设置于注射器套管102内的注射推杆101，注射推杆101头部为塑料硅胶，与注射器套管102内腔过盈配合，其作用是在外力作用下负责药物输送，注射器套管102头部设置有外螺纹，注射针头104与针座103呈一体固定状态，针座103内腔设置有内螺纹，针座103通过旋转螺纹与注射器套管102连接。常规注射器的针头固定于针座中，由于针头的长度固定，因此在注射过程中注射深度只能人为去控制；另外，常规注射器在注射过程中，患者可以直接看到针头，因此在未注射之前，裸露在外面的针头会使患者产生恐惧感，晕针等现象等，造成患者不适。
 技术问题
本发明的目的在于提供一种统一注射深度伸缩型胰岛素注射器，克服了不同规格长度的针头无法精确实现安全注射（即注射深度统一在4-6mm之间）的问题，同时消除了被注射者对针头的恐惧，消除了疼痛，实现了在治疗康复过程中的舒适性。
 技术解决方案
为达到上述目的，本发明采用的技术方案是：统一注射深度伸缩型胰岛素注射器，包括注射器本体、限位器、定位套管和限位螺母，限位器具有内腔，该限位器外壁上等间距的设有多个限位翼，所述注射器本体安装于内腔内，且针头伸出限位器，定位套管具有中腔，该定位套管外壁上部等间距的设有多个竖直滑槽，其外壁下部设有外螺纹，所述限位翼嵌入竖直滑槽内且伸出定位套管，所述限位器可竖直滑移的设置于中腔内，限位螺母具有外腔，所述外腔内设有内螺纹，所述定位套管螺纹连接于外腔内，当转动限位螺母时其上端面与限位翼相抵接用于限制针头伸出定位套管的长度，收缩套组件安装于定位套管的下部用于隐藏非注射状态时的针头，当进行注射时，该收缩套组件的下端与人体皮肤抵接后该收缩套组件被挤压使针头凸出于收缩套组件下端。
作为进一步的优化，所述限位器具有底壁，所述底壁上设有与内腔连通的通孔，所述注射器本体的针座抵接于所述底壁上，所述针头穿过通孔后伸出限位器。
作为进一步的优化，所述注射器本体外壁上等间距的设有多个定位翼，所述定位翼位于限位器的上方，且嵌入竖直滑槽内。
作为进一步的优化，所述限位翼、定位翼和竖直滑槽的个数相等，均为二至六个。
作为进一步的优化，所述定位套管上位于外螺纹处设有用于表示所述针头长度的标识数字，所述限位螺母上设有显示孔，当旋转限位螺母时通过显示孔显示标识数字。
作为进一步的优化，所述标识数字为4至13的整数，其单位为mm。
作为进一步的优化，所述内螺纹的螺纹间距和外螺纹的螺纹间距均为1mm。
作为进一步的优化，该统一注射深度伸缩型胰岛素注射器还包括收缩套组件，所述收缩套组件包括底板和多个导柱，所述底板中部设有用于针头穿过的开孔，多个所述导柱等间距的固定于底板上，且位于开孔的旁侧，且向上穿过设置于中腔内壁上的安装板，所述导柱的外侧套设弹簧，所述弹簧的上下两端分别与安装板和底板抵接。
作为进一步的优化，所述导柱的个数大于等于三个。
 有益效果
与现有技术相比，本发明具有以下的有益效果。
1.通过限位螺母、定位套管与限位器的协同作用控制针头的伸出长度（即刺入长度），克服了注射器对针头长度的选择，在选择针头长度时避免了针长的局限性和专一性，提高了其在基础医学、临床医学、法医学、检验医学、预防医学、保健医学、康复医学等各领域的使用广泛性。
2.针头在注射过程中隐藏于收缩套组件中，消除了被注射者对针头的恐惧，消除了疼痛，不易产生对注射的恐惧感，实现了在治疗康复过程中的舒适性。
 附图说明
图1为本发明的结构图。
图2为本发明的各部件装配前的结构示意图。
图3为本发明的各部件装配前的剖视图。
图4为本发明未进行注射状态时的结构示意图。
图5为本发明完成注射状态时的结构示意图。
图6为常规注射器的结构示意图。
 本发明的实施方式
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。
如图1至5所示，统一注射深度伸缩型胰岛素注射器，包括注射器本体10、限位器20、定位套管30、限位螺母40和收缩套组件50，限位器20具有内腔200，该限位器20外壁上等间距的设有三个限位翼21，注射器本体10安装于内腔200内，且针头104伸出限位器20，定位套管30具有中腔300，该定位套管30外壁上部等间距的设有三个竖直滑槽31，其外壁下部设有外螺纹32，限位翼21嵌入竖直滑槽31内且伸出定位套管30，限位器20可竖直滑移的设置于中腔300内，限位螺母40具有外腔400，外腔400内设有内螺纹41，定位套管30螺纹连接于外腔400内，当转动限位螺母40时，其上端面与限位翼21相抵接，用于限制针头104伸出定位套管30的长度。
统一注射深度伸缩型胰岛素注射器还包括收缩套组件50，收缩套组件，其安装于定位套管的下部，用于隐藏非注射状态时的针头，当注射时收缩套组件的下端与人体皮肤抵接后该收缩套组件被挤压使针头凸出于收缩套组件下端。收缩套组件50包括底板51和多个导柱52，底板51中部设有用于针头104穿过的开孔511，多个导柱52等间距的固定于底板51上，位于开孔511的旁侧，且向上穿过设置于中腔300内壁上的安装板34，导柱52的外侧套设弹簧53，弹簧53的上下两端分别与安装板34和底板51抵接；导柱52的个数大于等于三个，优选设置为三个，导柱穿过安装板后的上部具有膨胀头521，防止其从安装板中脱落。
优选的，限位器20具有底壁22，底壁22上设有与内腔200连通的通孔221，注射器本体10的针座103抵接于底壁22上，针头104穿过通孔221后伸出限位器20，通过设置底壁可以将注射器本体的下端牢靠的固定于限位器的内腔中，提高了安装稳定性。
优选的，注射器本体10外壁上等间距的设有多个定位翼11，定位翼11位于限位器20的上方，且嵌入竖直滑槽31内，定位翼11一方面可以防止注射器本体在限位器中产生转动，另一方面，定位翼和限位翼一上一下在竖直滑槽内移动，二者的位置限定了注射器本体和限位器这个组合在定位套管中上下移动的距离。
优选的，限位翼21、定位翼11和竖直滑槽31的个数相等，均为三至六个，本发明中，优选三个，分别成轴对称设置，可以保证各部件的运动稳定性，不会产生横向偏移。
优选的，注射器套管102上部与下部不等径，其上部直径更大，注射器本体上部嵌入中腔内，可与中腔内壁接触，亦保证了注射器套管上下移动时的稳定性。
优选的，定位套管30上位于外螺纹32处设有用于表示所用针头长度的标识数字33，限位螺母40上设有显示孔42；当旋转限位螺母40时，通过显示孔42显示标识数字33；一般针头的长度为4-13mm，因此标识数字33为4至13的整数，其单位为mm；内螺纹41的螺纹间距和外螺纹32的螺纹间距均为1mm。所以每旋转一圈，显示孔内读取的标识数字表示针头的长度调整了1mm。以所用针头长度为8mm为例，只需将限位螺母40旋转到显示孔42显示为8时，其表明已将注射深度控制在统一设定的安全注射深度。
本发明中，将注射器本体10安装于限位器20的内腔200中，然后将限位器20安装于定位套管30的中腔300内，其中限位器20外壁上的限位翼21嵌入竖直滑槽31内，保证限位器20在中腔300内竖直上下移动的精准度，将限位螺母40螺纹连接于定位套管30的外壁上，限位翼31与限位螺母40的上端抵接，通过旋转使限位螺母40在定位套管30外侧上下移动，通过限定限位翼31的位置而限定限位器20在中腔300内的位置，进而限定了位于限位器20中注射器本体10在中腔300内的位置，从而限定了针头104可伸出定位套管30下端的长度。
本发明在使用过程中，在未进行注射前，针头104位于收缩套组件50内，当进行注射动作时，首先根据所用针头的长度，旋转限位螺母40到显示孔42显示数字为针头长度为止，从而将注射深度控制在统一设定的安全注射深度，紧握注射器套管102进行注射动作，当收缩套组件50的底板51接触人体时，在力的作用下，弹簧压缩，针头穿过底板上的开孔后刺入皮肤，注射器运动完成，此时按住注射推杆进行缓慢注射药物，注射推杆运动至下死点时，药物注射完成，快速拔出注射器，即注射完成，同时在弹簧的力作用下，收缩套组件复位，针头回缩，一次完整的注射过程结束。
本发明克服了注射器对针头长度的选择，在选择针头长度时避免了针长的局限性和专一性，能够较大范围的适应注射针的长度；而且能够统一调节针头的注射深度，通过限位螺母、定位套管与限位器的协同作用控制针头的伸出长度，从而提高注射的安全性。另外，针头在注射过程中始终隐藏于收缩套组件中，消除了被注射者对针头的恐惧，消除了疼痛，不易产生对注射的恐惧感，实现了在治疗康复过程中的舒适性。所以此设计结构合理，操作便捷，使用更高效，应用过程更加人性化。
 工业实用性
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。

Claims (9)

  1. 统一注射深度伸缩型胰岛素注射器，其特征在于，包括
    注射器本体，
    限位器，其具有内腔，该限位器外壁上等间距的设有多个限位翼，所述注射器本体安装于内腔内，且针头伸出限位器，
    定位套管，其具有中腔，该定位套管外壁上部等间距的设有多个竖直滑槽，其外壁下部设有外螺纹，所述限位翼嵌入竖直滑槽内且伸出定位套管，所述限位器可竖直滑移的设置于中腔内，
    限位螺母，其具有外腔，所述外腔内设有内螺纹，所述定位套管螺纹连接于外腔内，当转动限位螺母时其上端面与限位翼相抵接用于限制针头伸出定位套管的长度；
    收缩套组件，其安装于定位套管的下部，用于隐藏非注射状态时的针头，当注射时收缩套组件的下端与人体皮肤抵接后该收缩套组件被挤压使针头凸出于收缩套组件下端。
  2. 根据权利要求1所述的统一注射深度伸缩型胰岛素注射器，其特征在于，所述限位器具有底壁，所述底壁上设有与内腔连通的通孔，所述注射器本体的针座抵接于所述底壁上，所述针头穿过通孔后伸出限位器。
  3. 根据权利要求1所述的统一注射深度伸缩型胰岛素注射器，其特征在于，所述注射器本体外壁上等间距的设有多个定位翼，所述定位翼位于限位器的上方，且嵌入竖直滑槽内。
  4. 根据权利要求3所述的统一注射深度伸缩型胰岛素注射器，其特征在于，所述限位翼、定位翼和竖直滑槽的个数相等，均为二至六个。
  5. 根据权利要求1所述的统一注射深度伸缩型胰岛素注射器，其特征在于，所述定位套管上位于外螺纹处设有用于表示所述针头长度的标识数字，所述限位螺母上设有显示孔，当旋转限位螺母时通过显示孔显示标识数字。
  6. 根据权利要求5所述的统一注射深度伸缩型胰岛素注射器，其特征在于，所述标识数字为4至13的整数，其单位为mm。
  7. 根据权利要求5或6所述的统一注射深度伸缩型胰岛素注射器，其特征在于，所述内螺纹的螺纹间距和外螺纹的螺纹间距均为1mm。
  8. 根据权利要求1所述的统一注射深度伸缩型胰岛素注射器，其特征在于，所述收缩套组件包括底板和多个导柱，所述底板中部设有用于针头穿过的开孔，多个所述导柱等间距的固定于底板上，且位于开孔的旁侧，且向上穿过设置于中腔内壁上的安装板，所述导柱的外侧套设弹簧，所述弹簧的上下两端分别与安装板和底板抵接。
  9. 根据权利要求8所述的统一注射深度伸缩型胰岛素注射器，其特征在于，所述导柱的个数大于等于三个。
PCT/CN2021/129985 2021-10-19 2021-11-11 统一注射深度伸缩型胰岛素注射器 WO2023065424A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111213691.X 2021-10-19
CN202111213691.XA CN114082042B (zh) 2021-10-19 2021-10-19 统一注射深度伸缩型胰岛素注射器

Publications (1)

Publication Number Publication Date
WO2023065424A1 true WO2023065424A1 (zh) 2023-04-27

Family

ID=80297144

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/129985 WO2023065424A1 (zh) 2021-10-19 2021-11-11 统一注射深度伸缩型胰岛素注射器

Country Status (2)

Country Link
CN (1) CN114082042B (zh)
WO (1) WO2023065424A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201001873Y (zh) * 2007-01-26 2008-01-09 田伟裕 带有伸缩性套管的注射式针管
CN201375734Y (zh) * 2009-04-09 2010-01-06 张传思 一种可控注射深度的注射器
CN103007395A (zh) * 2012-12-13 2013-04-03 苏州和林精密科技有限公司 注射深度可调节胰岛素用针头
CN106390243A (zh) * 2016-11-23 2017-02-15 合肥贺博教育科技有限公司 一种注射深度可调的针头隐藏式注射器
CN205988444U (zh) * 2016-05-25 2017-03-01 江苏德尔福医疗器械有限公司 一种注射进针深度可调的隐针机构
US20180289902A1 (en) * 2015-10-30 2018-10-11 WeN Xiang Puncture Depth Controlling and Needle Hiding Device and Usage Method Thereof
CN212214322U (zh) * 2019-08-20 2020-12-25 山东连发医用塑胶制品有限公司 一种安全可调的胰岛素注射针头

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9937299B2 (en) * 2013-09-26 2018-04-10 Becton, Dickinson And Company Adjustable penetration depth syringe
CN107281594A (zh) * 2016-04-12 2017-10-24 上海金塔医用器材有限公司 注射针
WO2019203298A1 (ja) * 2018-04-20 2019-10-24 Ａｓｔｉ株式会社 注射針と注射装置
CN213191791U (zh) * 2020-06-29 2021-05-14 湖州市中心医院 一种带保护功能的胰岛素注射器
CN213724269U (zh) * 2020-11-12 2021-07-20 重庆市涪陵中心医院 一种结构简单的麻醉科用给药装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201001873Y (zh) * 2007-01-26 2008-01-09 田伟裕 带有伸缩性套管的注射式针管
CN201375734Y (zh) * 2009-04-09 2010-01-06 张传思 一种可控注射深度的注射器
CN103007395A (zh) * 2012-12-13 2013-04-03 苏州和林精密科技有限公司 注射深度可调节胰岛素用针头
US20180289902A1 (en) * 2015-10-30 2018-10-11 WeN Xiang Puncture Depth Controlling and Needle Hiding Device and Usage Method Thereof
CN205988444U (zh) * 2016-05-25 2017-03-01 江苏德尔福医疗器械有限公司 一种注射进针深度可调的隐针机构
CN106390243A (zh) * 2016-11-23 2017-02-15 合肥贺博教育科技有限公司 一种注射深度可调的针头隐藏式注射器
CN212214322U (zh) * 2019-08-20 2020-12-25 山东连发医用塑胶制品有限公司 一种安全可调的胰岛素注射针头

Also Published As

Publication number Publication date
CN114082042A (zh) 2022-02-25
CN114082042B (zh) 2022-08-19

Similar Documents

Publication Publication Date Title
KR101106495B1 (ko) 주사바늘길이조절용관조립체
EP2749306A1 (en) Disposable array-type micro injection needle head and pre-filling injector thereof
WO2013141351A1 (ja) 自動注射装置
CN101810897B (zh) 表面具有螺旋形态的注射针头
CN112773975A (zh) 一种内分泌科用注射定位装置
CN108721733A (zh) 一种无痛微量麻醉剂注射装置
CN208003096U (zh) 一种针灸针发针器
EP2589401A1 (en) Device for controlling the depth and reducing the pain of injections
CN109011033B (zh) 一种便于糖尿病患者自主进行腹部注射的装置
CN114099854A (zh) 一种内分泌糖尿病胰岛素输送设备
WO2023065424A1 (zh) 统一注射深度伸缩型胰岛素注射器
CN219071592U (zh) 一种穴位注射装置
CN105477746B (zh) 粘贴式微型皮下注射装置
CN210354856U (zh) 一种硬膜外麻醉辅助进针器
CN202699777U (zh) 可调式注射笔
KR940006930Y1 (ko) 일회용 무통 주사기
CN201643335U (zh) 表面具有螺旋形态的注射针头
CN201441701U (zh) 一种能控制深度的注射器
CN211327470U (zh) 一种用于肌肉注射的注射器
CN221045271U (zh) 一种用于调节注射针长度的管组件
CN215608367U (zh) 一种麻醉科用麻醉针
CN201008687Y (zh) 一种注射用针头
CN219439367U (zh) 一种改良的神经阻滞针
CN219963454U (zh) 一种针灸用定位装置
CN110693710B (zh) 一种基于arm处理器的智能无痛进针机构及进针方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21961164

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE