WO2022078237A1 - Needle protection structure and protection method, and needle device - Google Patents

Needle protection structure and protection method, and needle device Download PDF

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Publication number
WO2022078237A1
WO2022078237A1 PCT/CN2021/122581 CN2021122581W WO2022078237A1 WO 2022078237 A1 WO2022078237 A1 WO 2022078237A1 CN 2021122581 W CN2021122581 W CN 2021122581W WO 2022078237 A1 WO2022078237 A1 WO 2022078237A1
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WO
WIPO (PCT)
Prior art keywords
needle
seat
protection
protection structure
tube
Prior art date
Application number
PCT/CN2021/122581
Other languages
French (fr)
Chinese (zh)
Inventor
胡超宇
鲁艳
Original Assignee
普昂(杭州)医疗科技股份有限公司
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.)
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Publication date
Priority claimed from CN202011085276.6A external-priority patent/CN112155565B/en
Priority claimed from CN202011464717.3A external-priority patent/CN112450926B/en
Application filed by 普昂(杭州)医疗科技股份有限公司 filed Critical 普昂(杭州)医疗科技股份有限公司
Publication of WO2022078237A1 publication Critical patent/WO2022078237A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • 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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • 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

Definitions

  • the invention relates to the field of medical instruments, in particular to a needle protection structure, a protection method and a needle device.
  • needle devices are the most commonly used disposable consumables in medical institutions.
  • the needles of traditional needle devices are usually exposed after use, which can easily cause accidental needle stick injuries and environmental pollution. Needle stick injury and the resulting cross-infection is a safety and health problem that has plagued the majority of medical staff for a long time. After use, the contaminated needle tip is exposed, which can easily cause secondary injury and cross-infection. Therefore, it is necessary to design a needle device with better safety and minimize the risk of secondary injury and cross-infection.
  • the technical problem to be solved by the present invention is to provide a needle protection structure, a protection method and a needle device. After the needle is used, the thorn part of the needle tube is stored to prevent the thorn end of the needle tube from being exposed, causing secondary injury and cross infection. , protect patients and medical staff.
  • a needle protection structure includes a needle seat, a needle tube and a protection seat, and the needle tube is connected with the needle seat;
  • the protection seat is provided with a needle hole, which is rotatably movable
  • a cover plate is connected, and the cover plate is provided with a needle passage;
  • the lock needle assembly includes a torsion spring, the coil of the torsion spring is aligned with the needle hole;
  • the torsion spring The first torsion arm corresponds to the protection seat, and the second torsion arm corresponds to the cover plate;
  • the needle seat has at least the following two position states relative to the protective seat:
  • the needle threading channel is aligned with the needle hole, at this time, the torsion spring is in a state of relaxation and energy storage, and the needle tube passes through the coil, the needle hole and the needle threading channel;
  • the needle tube In the second position state, the needle tube is withdrawn from the needle threading channel, and the needle threading channel is staggered from the needle hole; at the same time, the coil of the torsion spring prevents the needle tube from withdrawing from the coil.
  • the needle seat When the needle is in use, the needle seat is in the first position relative to the protective seat, the needle-piercing channel is aligned with the needle hole, the pointed end of the needle tube protrudes from the needle-piercing channel, and the torsion spring is in a state of relaxation and energy storage; and the needle tube is in contact with the cover plate , preventing the cover from rotating relative to the protective seat.
  • push the needle seat to move relative to the protective seat until the pointed end of the needle tube is withdrawn from the needle threading channel.
  • the elastic force of the torsion spring drives the cover plate to rotate until the needle threading channel and the needle tube are misaligned, the cover plate prevents the pointed end of the needle tube from extending again, and the inner diameter of the coil is reduced, preventing the needle tube from withdrawing from the coil.
  • the thorn part of the needle tube can be stored after the needle is used, so as to prevent the thorn end of the needle tube from being exposed, causing secondary injury and cross infection, and protecting patients and medical staff.
  • the preload assembly is matched and connected in the first position state, which can prevent the needle seat from moving relative to the protection seat in the normal use state of the needle.
  • the needle tube in the first position state, a gap is left between the needle tube and the coil, and at this time, the needle tube can move axially relative to the coil.
  • the spring ring holds the needle tube tightly, preventing the needle tube from continuing to move relative to the spring ring.
  • the pointed end of the needle tube is bent.
  • the needle tube can move relative to the coil in the first position, but because the gap between the coil and the needle tube is small, and after entering the second position, the inner diameter of the coil will be further reduced. Even in the second position, the needle tube still remains. It can move axially relative to the coil, and under the obstruction of the bent thorn end, the needle tube cannot be withdrawn from the coil, so as to prevent the needle tube from withdrawing from the coil.
  • the cover plate is provided with a slot, and part or all of the second torsion arm is inserted into the slot, and the slot is elongated.
  • the slot is used in cooperation with the second torsion arm to push the cover plate to rotate relative to the protective seat.
  • the slot is in the shape of a long strip, and the second torsion arm can move relatively within the length of the slot, leaving enough space for the installation of the torsion spring, and lower requirements for the dimensional accuracy of the torsion spring and the slot.
  • the center line of the coil does not coincide with the rotation center line of the cover plate.
  • the slot is arranged in the shape of a long strip to allow enough movement space for the transition of the second torsion arm between the first position state and the second position state.
  • both sides of the needle seat are respectively provided with hand-held parts for easy operation.
  • butterfly wings are respectively provided on both sides of the needle seat.
  • the preloading assembly includes an elastic protrusion provided on the needle seat, and a pressing groove provided on the protective seat. In the first position state, the elastic protrusion is inserted into the pressing groove.
  • the preload assembly is matched and connected in the first position state, which can prevent the needle seat from moving relative to the protection seat in the normal use state of the needle.
  • the protective seat is provided with a raised portion
  • the needle seat is provided with a accommodating cavity matched with the raised portion
  • the pressing groove is provided on the raised portion
  • the elastic The bump is arranged in the accommodating cavity.
  • the cooperation between the raised part and the accommodating groove, combined with the cooperation between the elastic protrusion and the pressing groove, can locate the circumferential orientation of the needle seat relative to the protective seat to prevent installation dislocation.
  • it also includes a limit band made of a flexible material, one end of the limit band is connected to the needle seat, and the other end is connected to the protection seat; in the first position state, the limit band is in a relaxed state; In the two-position state, the limiting belt is in a tight state.
  • the limit band In the second position state, the limit band is tight, which can prevent the needle tube from withdrawing backwards. Both the limit band and the spring coil can prevent the needle from withdrawing backwards, which has the effect of double insurance and further improves the protection effect.
  • the protection seat includes a casing and a bottom plate, and the casing and the bottom plate are pressed against the corresponding ends of the limiting band.
  • the casing and the bottom plate are connected and enclosed into an installation cavity
  • the installation cavity is provided with a base
  • the torsion spring is arranged on the base
  • the cover plate is rotatably connected to the base
  • the bottom plate is provided with a through hole matched with the cover plate, and the cover plate is arranged in the through hole.
  • the needle seat When the needle is in use, the needle seat is in the first position relative to the protective seat, the needle-piercing channel is aligned with the needle hole, and the torsion spring is in a state of relaxation and energy storage; the pointed end of the needle tube protrudes from the needle-piercing channel, and the needle tube is in contact with the cover plate , to prevent the cover from rotating relative to the protective seat;
  • the needle seat moves relative to the protective seat until the pointed end of the needle tube exits the needle passage; at this time, the cover plate rotates under the elastic force of the torsion spring until the needle passage is misaligned with the needle tube, preventing the sharp end of the needle tube.
  • the barbed end extends again, while the inner diameter of the coil shrinks, preventing the needle from withdrawing from the coil.
  • a needle device comprising the needle protection structure as described above.
  • FIG. 1 is a schematic structural diagram of the needle protection structure in the first position state according to the first embodiment of the present invention
  • FIG. 2 is a bottom view of the needle protection structure in the first position state according to the first embodiment of the present invention
  • FIG. 3 is an exploded view of the needle protection structure according to the first embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of the needle protection structure according to the first embodiment of the present invention with the casing removed in the first position state;
  • FIG. 5 is a schematic structural diagram of the needle protection structure in the second position state according to the first embodiment of the present invention.
  • FIG. 6 is a bottom view of the needle protection structure in the second position state according to the first embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of the needle protection structure according to the first embodiment of the present invention with the casing removed in the second position state;
  • FIG. 8 is a schematic diagram of the coordination of the needle tube, the torsion spring and the cover plate in the second position state of the needle protection structure according to the first embodiment of the present invention
  • FIG. 9 is a schematic structural diagram of a needle seat in the needle protection structure according to the first embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a cover plate in the needle protection structure of the first embodiment of the invention.
  • FIG. 11 is a schematic structural diagram of the needle protection structure in the first position state according to the second embodiment of the present invention.
  • FIG. 12 is a bottom view of the needle protection structure in the first position state according to the second embodiment of the present invention.
  • FIG. 13 is an exploded view of the needle protection structure according to the second embodiment of the present invention.
  • Fig. 15 is a partial enlarged view at A in Fig. 14;
  • 16 is a schematic structural diagram of the needle protection structure in the second position state according to the second embodiment of the present invention.
  • 17 is a bottom view of the needle protection structure in the second position state according to the second embodiment of the present invention.
  • FIG. 18 is a schematic structural diagram of the needle protection structure of the second embodiment of the present invention with the casing removed in the second position state.
  • the needle protection structure includes a needle seat 1 , a needle tube 3 and a protection seat 2 , and the needle tube 3 is connected to the needle seat 1 .
  • the protective seat 2 is provided with a needle hole, and is connected with a cover plate 4 in a rotatable and movable manner.
  • the cover plate 4 is provided with a needle-penetrating channel 42 .
  • the protection seat 2 includes a casing 25 and a bottom plate 21, the casing 25 and the bottom plate 21 enclose an installation cavity, the installation cavity is provided with a base 22, and the torsion spring 5 is disposed on the base. 22, the cover plate 4 is rotatably connected with the base 22.
  • the bottom plate 21 is provided with a through hole 26 matching the cover plate 4 , and the cover plate 4 is arranged in the through hole 26 .
  • the protective seat 2 is provided with a raised portion 23
  • the needle seat 1 is provided with a accommodating cavity 13 matching the raised portion 23 .
  • Both sides of the needle holder 1 are respectively provided with hand-held portions 12 for easy operation.
  • a lock pin assembly is also included, and the lock pin assembly includes a torsion spring 5 , and the coil 52 of the torsion spring 5 is aligned with the pin hole.
  • the first torsion arm 51 of the torsion spring 5 corresponds to the protection seat 2
  • the second torsion arm 53 corresponds to the cover plate 4 .
  • the cover plate 4 is provided with a slot 41 , and part or all of the second torsion arm 53 is inserted into the slot 41 , and the slot 41 is elongated.
  • the preload assembly includes an elastic bump 11 and a pressing groove 24.
  • the pressing groove 24 is arranged on the raised portion 23 , and the elastic bump 11 is arranged in the accommodating cavity 13 . In the first position state, the elastic bump 11 is inserted into the pressing groove 24 .
  • the needle seat 1 has at least the following two position states relative to the protective seat 2:
  • the needle passage 42 is aligned with the needle hole, at this time, the torsion spring 5 is in a state of relaxation and energy storage, and the needle tube 3 passes through the spring coil 52 , the needle hole and the needle passage 42, and the preload assembly between the needle seat 1 and the protective seat 2 is matched and connected.
  • the needle tube 3 is withdrawn from the needle threading channel 42 , and the needle threading channel 42 is staggered from the needle hole.
  • the coil 52 of the torsion spring 5 prevents the needle tube 3 from withdrawing from the coil 52 .
  • the specific embodiments of the coil 52 preventing the needle tube 3 from withdrawing can include the following two:
  • the first way is: in the first position state, there is a gap between the needle tube 3 and the coil 52 , and the needle tube 3 can move axially relative to the coil 52 at this time. In the second position, the coil 52 holds the needle tube 3 tightly, preventing the needle tube 3 from continuing to move relative to the coil 52 .
  • the second way is: the pointed end of the needle tube 3 is bent and arranged.
  • the needle tube 3 can move relative to the coil 52 in the first position, but because the gap between the coil 52 and the needle tube 3 is small, and after entering the second position, the inner diameter of the coil 52 will be further reduced, even in the second position. In this state, the needle tube 3 can still move axially relative to the spring coil 52, and under the obstruction of the bent thorn end, the needle tube 3 cannot withdraw from the spring coil 52, so as to prevent the needle tube 3 from withdrawing from the spring coil 52. .
  • the thorn part of the needle tube 3 can be stored after the needle is used, so as to prevent the thorn end of the needle tube 3 from being exposed, causing secondary injury and cross infection, and protecting patients and medical staff.
  • the preloading assembly is matched and connected in the first position state, which can prevent the needle seat 1 from moving relative to the protection seat 2 under the normal use state of the needle.
  • the needle seat 1 When the needle is in use, the needle seat 1 is in the first position relative to the protective seat 2, the needle piercing channel 42 is aligned with the needle hole, and the torsion spring 5 is in a state of relaxation and energy storage; the pointed end of the needle tube 3 protrudes from the needle piercing channel 42, And the needle tube 3 is in contact with the cover plate 4, preventing the cover plate 4 from rotating relative to the protection seat 2; in the process of using the needle, the pre-tightening assembly is matched and connected to avoid the needle seat 1 relative to the protection seat 2 when the needle is in normal use. sports.
  • the needle seat 1 moves relative to the protective seat 2 until the pointed end of the needle tube 3 withdraws from the needle threading channel 42; at this time, the cover plate 4 rotates under the elastic force of the torsion spring The dislocation of the needle tube 3 prevents the pointed end of the needle tube 3 from protruding again, and at the same time, the inner diameter of the coil 52 is reduced, preventing the needle tube 3 from withdrawing from the coil 52 .
  • FIGS. 11-13 butterfly wings 14 are respectively provided on both sides of the needle seat 1 .
  • FIG. 13 FIG. 16-FIG. 18, it also includes a limit band 6 made of flexible material, one end of the limit band 6 is connected to the needle seat 1, and the other end is connected to the protection seat 2; the first position state In the second position, the limit belt 6 is in a relaxed state; in the second position state, the limit belt 6 is in a taut state. In the second position state, the limiting band 6 is tight, which can prevent the needle tube 3 from withdrawing backwards.
  • the protective seat 2 includes a casing 25 and a bottom plate 21 , and the casing 25 and the bottom plate 21 press the corresponding ends of the limiting belts.
  • the needle seat 1 When the needle is in use, the needle seat 1 is in the first position relative to the protective seat 2, the needle piercing channel 42 is aligned with the needle hole, and the torsion spring 5 is in a state of relaxation and energy storage; the pointed end of the needle tube 3 protrudes from the needle piercing channel 42, And the needle tube 3 is in contact with the cover plate 4, preventing the cover plate 4 from rotating relative to the protection seat 2; in the process of using the needle, the pre-tightening assembly is matched and connected to avoid the needle seat 1 relative to the protection seat 2 when the needle is in normal use. sports.
  • the needle seat 1 moves relative to the protective seat 2 until the pointed end of the needle tube 3 withdraws from the needle threading channel 42; at this time, the cover plate 4 rotates under the elastic force of the torsion spring
  • the needle tube 3 is dislocated, preventing the pointed end of the needle tube 3 from protruding again, while the inner diameter of the coil 52 is reduced, and the limiting band 6 is tightened, preventing the needle tube 3 from withdrawing from the coil 52 .
  • a needle device comprising the needle protection structure as described above.

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Abstract

A needle protection structure and protection method, and a needle device. The needle protection structure comprises a needle base (1), a needle tube (3) and a protection base (2); the needle tube (3) is connected to the needle base (1); a needle hole is provided on the protection base (2), and a cover plate (4) is rotatably and movably connected to the protection base; a needle passing-through passage (42) is provided on the cover plate (4); the needle protection structure further comprises a needle locking assembly, and the needle locking assembly comprises a torsion spring (5); and the needle base (1) has at least the following two position states relative to the protection base (2): in a first position state, the needle passing-through passage (42) is aligned with the needle hole, and at this time, the torsion spring (5) is in a stretched and energy-storage state, and the needle tube (3) passes through a spring coil (52), the needle hole and the needle passing-through passage (42); and in a second position state, the needle tube (3) exits from the needle passing-through passage (42), and the needle passing-through passage (42) is staggered from the needle hole. The needle protection structure is used for accommodating the spiked portion of the needle tube (3) after the needle is used, avoiding secondary injury and cross infection caused by the exposed spiked end of the needle tube (3), and protecting patients and medical staff.

Description

针保护结构、保护方法及针装置Needle protection structure, protection method and needle device 技术领域technical field
本发明涉及医疗器械领域，尤其涉及一种针保护结构、保护方法及针装置。The invention relates to the field of medical instruments, in particular to a needle protection structure, a protection method and a needle device.
背景技术Background technique
各类针装置是医疗机构最常用、使用最普遍的一次性耗材，传统针装置在使用后针头通常暴露在外，很容易造成意外***和环境污染。***和由此造成的交叉感染是长期困扰广大医务人员的一个安全和健康问题，使用后被污染的针管尖刺端裸露在外，很容易造成二次伤害和交叉感染。因此需要设计一种安全性更好，最大限度降低二级伤害和交叉感染风险的针装置。Various types of needle devices are the most commonly used disposable consumables in medical institutions. The needles of traditional needle devices are usually exposed after use, which can easily cause accidental needle stick injuries and environmental pollution. Needle stick injury and the resulting cross-infection is a safety and health problem that has plagued the majority of medical staff for a long time. After use, the contaminated needle tip is exposed, which can easily cause secondary injury and cross-infection. Therefore, it is necessary to design a needle device with better safety and minimize the risk of secondary injury and cross-infection.
技术问题technical problem
本发明要解决的技术问题是提供一种针保护结构、保护方法及针装置，在针使用之后，对针管的尖刺部进行收纳，避免针管尖刺端裸露在外，造成二次伤害和交叉感染，保护患者和医护人员。The technical problem to be solved by the present invention is to provide a needle protection structure, a protection method and a needle device. After the needle is used, the thorn part of the needle tube is stored to prevent the thorn end of the needle tube from being exposed, causing secondary injury and cross infection. , protect patients and medical staff.
技术解决方案technical solutions
为了解决上述技术问题，本发明提供的技术方案如下：针保护结构，包括针座、针管和保护座，所述的针管与针座连接；所述的保护座上设有针孔，并旋转活动连接有盖板，所述的盖板上设有穿针通道；还包括锁针组件，所述的锁针组件包括扭簧，所述扭簧的簧圈与针孔对齐设置；所述扭簧的第一扭臂与保护座对应，第二扭臂与盖板对应；In order to solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a needle protection structure includes a needle seat, a needle tube and a protection seat, and the needle tube is connected with the needle seat; the protection seat is provided with a needle hole, which is rotatably movable A cover plate is connected, and the cover plate is provided with a needle passage; it also includes a lock needle assembly, and the lock needle assembly includes a torsion spring, the coil of the torsion spring is aligned with the needle hole; the torsion spring The first torsion arm corresponds to the protection seat, and the second torsion arm corresponds to the cover plate;
所述的针座相对于保护座至少有以下两个位置状态：The needle seat has at least the following two position states relative to the protective seat:
第一位置状态下，穿针通道与针孔对齐，此时，扭簧处于舒张储能状态，针管穿过簧圈、针孔及穿针通道；In the first position state, the needle threading channel is aligned with the needle hole, at this time, the torsion spring is in a state of relaxation and energy storage, and the needle tube passes through the coil, the needle hole and the needle threading channel;
第二位置状态下，针管从穿针通道退出，所述的穿针通道与针孔错开；同时扭簧的簧圈阻止针管从簧圈内退出。In the second position state, the needle tube is withdrawn from the needle threading channel, and the needle threading channel is staggered from the needle hole; at the same time, the coil of the torsion spring prevents the needle tube from withdrawing from the coil.
针使用时，针座相对于保护座位于第一位置状态，穿针通道与针孔对齐，针管的尖刺端从穿针通道伸出，扭簧处于舒张储能状态；且针管与盖板接触，阻止盖板相对于保护座转动。针使用完成后，推动针座相对于保护座运动，直至针管的尖刺端从穿针通道退出。此时，扭簧的弹力驱动盖板转动，直至穿针通道与针管错位，盖板阻止针管的尖刺端再次伸出，同时簧圈的内径缩小，阻止针管从簧圈内退出。When the needle is in use, the needle seat is in the first position relative to the protective seat, the needle-piercing channel is aligned with the needle hole, the pointed end of the needle tube protrudes from the needle-piercing channel, and the torsion spring is in a state of relaxation and energy storage; and the needle tube is in contact with the cover plate , preventing the cover from rotating relative to the protective seat. After the needle is used, push the needle seat to move relative to the protective seat until the pointed end of the needle tube is withdrawn from the needle threading channel. At this time, the elastic force of the torsion spring drives the cover plate to rotate until the needle threading channel and the needle tube are misaligned, the cover plate prevents the pointed end of the needle tube from extending again, and the inner diameter of the coil is reduced, preventing the needle tube from withdrawing from the coil.
采用上述针保护结构，可以在针使用完成之后，对针管的尖刺部进行收纳，避免针管尖刺端裸露在外，造成二次伤害和交叉感染，保护患者和医护人员。预紧组件在第一位置状态下配合连接，可以避免针在正常使用的状态下，针座相对于保护座运动。By adopting the above-mentioned needle protection structure, the thorn part of the needle tube can be stored after the needle is used, so as to prevent the thorn end of the needle tube from being exposed, causing secondary injury and cross infection, and protecting patients and medical staff. The preload assembly is matched and connected in the first position state, which can prevent the needle seat from moving relative to the protection seat in the normal use state of the needle.
作为优选，第一位置状态下，所述的针管与簧圈之间留有间隙，此时针管可以相对于簧圈轴向运动。第二位置状态下，所述的簧圈抱紧针管，阻止针管相对于簧圈继续运动。Preferably, in the first position state, a gap is left between the needle tube and the coil, and at this time, the needle tube can move axially relative to the coil. In the second position state, the spring ring holds the needle tube tightly, preventing the needle tube from continuing to move relative to the spring ring.
作为优选，所述针管的尖刺端折弯设置。Preferably, the pointed end of the needle tube is bent.
针管在第一位置状态可相对于簧圈运动，但由于簧圈与针管的间隙较小，并且进入第二位置状态后，簧圈的内径会进一步缩小，即使在第二位置状态下，针管仍可相对于簧圈轴向运动，在折弯的尖刺端阻碍下，针管也无法从簧圈内退出，从而起到阻止针管从簧圈退出的目的。The needle tube can move relative to the coil in the first position, but because the gap between the coil and the needle tube is small, and after entering the second position, the inner diameter of the coil will be further reduced. Even in the second position, the needle tube still remains. It can move axially relative to the coil, and under the obstruction of the bent thorn end, the needle tube cannot be withdrawn from the coil, so as to prevent the needle tube from withdrawing from the coil.
作为优选，所述的盖板上设有插槽，所述的第二扭臂部分或全部***插槽内，所述的插槽呈长条状。Preferably, the cover plate is provided with a slot, and part or all of the second torsion arm is inserted into the slot, and the slot is elongated.
插槽与第二扭臂配合使用，推动盖板相对于保护座转动。插槽呈长条状，第二扭臂可以在插槽的长度范围内相对运动，为扭簧的安装留出足够空间，对扭簧和插槽的尺寸精度要求更低。The slot is used in cooperation with the second torsion arm to push the cover plate to rotate relative to the protective seat. The slot is in the shape of a long strip, and the second torsion arm can move relatively within the length of the slot, leaving enough space for the installation of the torsion spring, and lower requirements for the dimensional accuracy of the torsion spring and the slot.
同时由于簧圈在第一位置状态下与穿针通道对齐，而在第二位置状态时与穿针通道错开设置，因此，簧圈的中心线与盖板的旋转中心线不重合。插槽呈长条状设置为第二扭臂在第一位置状态和第二位置状态之间的转变留出足够的运动空间。At the same time, since the spring coil is aligned with the needle threading channel in the first position, and is staggered from the needle threading channel in the second position, the center line of the coil does not coincide with the rotation center line of the cover plate. The slot is arranged in the shape of a long strip to allow enough movement space for the transition of the second torsion arm between the first position state and the second position state.
作为优选，所述针座的两侧分别设有手持部，便于操作。Preferably, both sides of the needle seat are respectively provided with hand-held parts for easy operation.
作为优选，所述针座的两侧分别设蝶翼。Preferably, butterfly wings are respectively provided on both sides of the needle seat.
作为优选，所述的预紧组件包括设置在针座上的弹性凸块，及设置在保护座上的压紧槽，第一位置状态下，所述的弹性凸块***压紧槽内。Preferably, the preloading assembly includes an elastic protrusion provided on the needle seat, and a pressing groove provided on the protective seat. In the first position state, the elastic protrusion is inserted into the pressing groove.
预紧组件在第一位置状态下配合连接，可以避免针在正常使用的状态下，针座相对于保护座运动。The preload assembly is matched and connected in the first position state, which can prevent the needle seat from moving relative to the protection seat in the normal use state of the needle.
作为优选，所述的保护座上设有凸起部，所述的针座上设有与凸起部匹配的容置腔；所述的压紧槽设置在凸起部上，所述的弹性凸块设置在容置腔内。Preferably, the protective seat is provided with a raised portion, the needle seat is provided with a accommodating cavity matched with the raised portion; the pressing groove is provided on the raised portion, and the elastic The bump is arranged in the accommodating cavity.
凸起部与容置槽的配合，结合弹性凸块与压紧槽的配合，可以对针座相对于保护座的周向方位进行定位，防止安装错位。The cooperation between the raised part and the accommodating groove, combined with the cooperation between the elastic protrusion and the pressing groove, can locate the circumferential orientation of the needle seat relative to the protective seat to prevent installation dislocation.
作为优选，还包括柔性材料制成的限位带，所述限位带的一端与针座连接，另一端与保护座连接；第一位置状态下，所述的限位带处于松弛状态；第二位置状态下，所述的限位带处于绷紧状态。Preferably, it also includes a limit band made of a flexible material, one end of the limit band is connected to the needle seat, and the other end is connected to the protection seat; in the first position state, the limit band is in a relaxed state; In the two-position state, the limiting belt is in a tight state.
第二位置状态下，所述的限位带绷紧，可以阻止针管向后退出。限位带与簧圈均能阻止针管向后退出的作用，起到双保险的效果，进一步提高保护效果。In the second position state, the limit band is tight, which can prevent the needle tube from withdrawing backwards. Both the limit band and the spring coil can prevent the needle from withdrawing backwards, which has the effect of double insurance and further improves the protection effect.
作为优选，所述的保护座包括壳体和底板，所述的壳体与底板压紧限位带的对应端部。Preferably, the protection seat includes a casing and a bottom plate, and the casing and the bottom plate are pressed against the corresponding ends of the limiting band.
作为优选，所述的壳体和底板连接并围合成安装腔，所述的安装腔内设有基座，所述的扭簧设置在基座上，所述的盖板与基座旋转活动连接；所述的底板上设有与盖板匹配的通孔，所述的盖板设置在通孔内。Preferably, the casing and the bottom plate are connected and enclosed into an installation cavity, the installation cavity is provided with a base, the torsion spring is arranged on the base, and the cover plate is rotatably connected to the base ; The bottom plate is provided with a through hole matched with the cover plate, and the cover plate is arranged in the through hole.
一种针保护方法，使用如上所述的针保护结构；A needle protection method using the needle protection structure as described above;
针使用时，针座相对于保护座位于第一位置状态，穿针通道与针孔对齐，扭簧处于舒张储能状态；针管的尖刺端从穿针通道伸出，且针管与盖板接触，阻止盖板相对于保护座转动；When the needle is in use, the needle seat is in the first position relative to the protective seat, the needle-piercing channel is aligned with the needle hole, and the torsion spring is in a state of relaxation and energy storage; the pointed end of the needle tube protrudes from the needle-piercing channel, and the needle tube is in contact with the cover plate , to prevent the cover from rotating relative to the protective seat;
使用完成后，针座相对于保护座运动，直至针管的尖刺端从穿针通道退出；此时，盖板在扭簧的弹力作用下转动，直至穿针通道与针管错位，阻止针管的尖刺端再次伸出，同时簧圈的内径缩小，阻止针管从簧圈内退出。After use, the needle seat moves relative to the protective seat until the pointed end of the needle tube exits the needle passage; at this time, the cover plate rotates under the elastic force of the torsion spring until the needle passage is misaligned with the needle tube, preventing the sharp end of the needle tube. The barbed end extends again, while the inner diameter of the coil shrinks, preventing the needle from withdrawing from the coil.
一种针装置，包括如上所述的针保护结构。A needle device comprising the needle protection structure as described above.
有益效果beneficial effect
在此处键入有益效果描述段落。Type a benefit description paragraph here.
附图说明Description of drawings
图1为本发明第一实施例针保护结构在第一位置状态下的结构示意图；1 is a schematic structural diagram of the needle protection structure in the first position state according to the first embodiment of the present invention;
图2为本发明第一实施例针保护结构在第一位置状态下的底部视图；2 is a bottom view of the needle protection structure in the first position state according to the first embodiment of the present invention;
图3为本发明第一实施例针保护结构的***图；3 is an exploded view of the needle protection structure according to the first embodiment of the present invention;
图4为本发明第一实施例针保护结构在第一位置状态下去除壳体的结构示意图；4 is a schematic structural diagram of the needle protection structure according to the first embodiment of the present invention with the casing removed in the first position state;
图5为本发明第一实施例针保护结构在第二位置状态下的结构示意图；5 is a schematic structural diagram of the needle protection structure in the second position state according to the first embodiment of the present invention;
图6为本发明第一实施例针保护结构在第二位置状态下的底部视图；6 is a bottom view of the needle protection structure in the second position state according to the first embodiment of the present invention;
图7为本发明第一实施例针保护结构在第二位置状态下去除壳体的结构示意图；7 is a schematic structural diagram of the needle protection structure according to the first embodiment of the present invention with the casing removed in the second position state;
图8为本发明第一实施例针保护结构在第二位置状态下针管、扭簧及盖板的配合示意图；8 is a schematic diagram of the coordination of the needle tube, the torsion spring and the cover plate in the second position state of the needle protection structure according to the first embodiment of the present invention;
图9为本发明第一实施例针保护结构中针座的结构示意图；9 is a schematic structural diagram of a needle seat in the needle protection structure according to the first embodiment of the present invention;
图10为发明第一本实施例针保护结构中盖板的结构示意图；10 is a schematic structural diagram of a cover plate in the needle protection structure of the first embodiment of the invention;
图11为本发明第二实施例针保护结构在第一位置状态下的结构示意图；11 is a schematic structural diagram of the needle protection structure in the first position state according to the second embodiment of the present invention;
图12为本发明第二实施例针保护结构在第一位置状态下的底部视图；12 is a bottom view of the needle protection structure in the first position state according to the second embodiment of the present invention;
图13为本发明第二实施例针保护结构的***图；13 is an exploded view of the needle protection structure according to the second embodiment of the present invention;
图14为本发明第二实施例针保护结构在第一位置状态下局部剖切的侧视图；14 is a partially cut side view of the needle protection structure of the second embodiment of the present invention in the first position state;
图15为图14中A处的局部放大图；Fig. 15 is a partial enlarged view at A in Fig. 14;
图16为本发明第二实施例针保护结构在第二位置状态下的结构示意图；16 is a schematic structural diagram of the needle protection structure in the second position state according to the second embodiment of the present invention;
图17为本发明第二实施例针保护结构在第二位置状态下的底部视图；17 is a bottom view of the needle protection structure in the second position state according to the second embodiment of the present invention;
图18为本发明第二实施例针保护结构在第二位置状态下去除壳体的结构示意图。FIG. 18 is a schematic structural diagram of the needle protection structure of the second embodiment of the present invention with the casing removed in the second position state.
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
在此处键入本发明的最佳实施方式描述段落。Type the best mode description paragraph of the invention here.
本发明的实施方式Embodiments of the present invention
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
实施例一Example 1
如图1-图3所示，针保护结构，包括针座1、针管3和保护座2，所述的针管3与针座1连接。所述的保护座2上设有针孔，并旋转活动连接有盖板4，所述的盖板4上设有穿针通道42。所述的保护座2包括壳体25和底板21，所述的壳体25和底板21围合成安装腔，所述的安装腔内设有基座22，所述的扭簧5设置在基座22上，所述的盖板4与基座22旋转活动连接。所述的底板21上设有与盖板4匹配的通孔26，所述的盖板4设置在通孔26内。As shown in FIGS. 1-3 , the needle protection structure includes a needle seat 1 , a needle tube 3 and a protection seat 2 , and the needle tube 3 is connected to the needle seat 1 . The protective seat 2 is provided with a needle hole, and is connected with a cover plate 4 in a rotatable and movable manner. The cover plate 4 is provided with a needle-penetrating channel 42 . The protection seat 2 includes a casing 25 and a bottom plate 21, the casing 25 and the bottom plate 21 enclose an installation cavity, the installation cavity is provided with a base 22, and the torsion spring 5 is disposed on the base. 22, the cover plate 4 is rotatably connected with the base 22. The bottom plate 21 is provided with a through hole 26 matching the cover plate 4 , and the cover plate 4 is arranged in the through hole 26 .
如图3、图5和图9所示，所述的保护座2上设有凸起部23，所述的针座1上设有与凸起部23匹配的容置腔13。所述针座1的两侧分别设有手持部12，便于操作。As shown in FIG. 3 , FIG. 5 and FIG. 9 , the protective seat 2 is provided with a raised portion 23 , and the needle seat 1 is provided with a accommodating cavity 13 matching the raised portion 23 . Both sides of the needle holder 1 are respectively provided with hand-held portions 12 for easy operation.
如图4、图7和图8所示，还包括锁针组件，所述的锁针组件包括扭簧5，所述扭簧5的簧圈52与针孔对齐设置。所述扭簧5的第一扭臂51与保护座2对应，第二扭臂53与盖板4对应。如图10所示，所述的盖板4上设有插槽41，所述的第二扭臂53部分或全部***插槽41内，所述的插槽41呈长条状。As shown in FIG. 4 , FIG. 7 and FIG. 8 , a lock pin assembly is also included, and the lock pin assembly includes a torsion spring 5 , and the coil 52 of the torsion spring 5 is aligned with the pin hole. The first torsion arm 51 of the torsion spring 5 corresponds to the protection seat 2 , and the second torsion arm 53 corresponds to the cover plate 4 . As shown in FIG. 10 , the cover plate 4 is provided with a slot 41 , and part or all of the second torsion arm 53 is inserted into the slot 41 , and the slot 41 is elongated.
如图5和图6所示，还包括设置在针座1与保护座2之间的预紧组件，所述的预紧组件包括弹性凸块11和压紧槽24，所述的压紧槽24设置在凸起部23上，所述的弹性凸块11设置在容置腔13内。第一位置状态下，所述的弹性凸块11***压紧槽24内。As shown in Figures 5 and 6, it also includes a preload assembly disposed between the needle seat 1 and the protection seat 2. The preload assembly includes an elastic bump 11 and a pressing groove 24. The pressing groove 24 is arranged on the raised portion 23 , and the elastic bump 11 is arranged in the accommodating cavity 13 . In the first position state, the elastic bump 11 is inserted into the pressing groove 24 .
所述的针座1相对于保护座2至少有以下两个位置状态：The needle seat 1 has at least the following two position states relative to the protective seat 2:
如图1和图2所示，第一位置状态下，穿针通道42与针孔对齐，此时，扭簧5处于舒张储能状态，针管3穿过簧圈52、针孔及穿针通道42，且所述针座1与保护座2之间的预紧组件配合连接。As shown in FIGS. 1 and 2 , in the first position state, the needle passage 42 is aligned with the needle hole, at this time, the torsion spring 5 is in a state of relaxation and energy storage, and the needle tube 3 passes through the spring coil 52 , the needle hole and the needle passage 42, and the preload assembly between the needle seat 1 and the protective seat 2 is matched and connected.
如图5和图6所示，第二位置状态下，针管3从穿针通道42退出，所述的穿针通道42与针孔错开。同时扭簧5的簧圈52阻止针管3从簧圈52内退出。As shown in FIG. 5 and FIG. 6 , in the second position state, the needle tube 3 is withdrawn from the needle threading channel 42 , and the needle threading channel 42 is staggered from the needle hole. At the same time, the coil 52 of the torsion spring 5 prevents the needle tube 3 from withdrawing from the coil 52 .
簧圈52阻止针管3退出的具体实施方式可以包括以下两种：The specific embodiments of the coil 52 preventing the needle tube 3 from withdrawing can include the following two:
第一种方式为：第一位置状态下，所述的针管3与簧圈52之间留有间隙，此时针管3可以相对于簧圈52轴向运动。第二位置状态下，所述的簧圈52抱紧针管3，阻止针管3相对于簧圈52继续运动。The first way is: in the first position state, there is a gap between the needle tube 3 and the coil 52 , and the needle tube 3 can move axially relative to the coil 52 at this time. In the second position, the coil 52 holds the needle tube 3 tightly, preventing the needle tube 3 from continuing to move relative to the coil 52 .
第二种方式为：所述针管3的尖刺端折弯设置。针管3在第一位置状态可相对于簧圈52运动，但由于簧圈52与针管3的间隙较小，并且进入第二位置状态后，簧圈52的内径会进一步缩小，即使在第二位置状态下，针管3仍可相对于簧圈52轴向运动，在折弯的尖刺端阻碍下，针管3也无法从簧圈52内退出，从而起到阻止针管3从簧圈52退出的目的。The second way is: the pointed end of the needle tube 3 is bent and arranged. The needle tube 3 can move relative to the coil 52 in the first position, but because the gap between the coil 52 and the needle tube 3 is small, and after entering the second position, the inner diameter of the coil 52 will be further reduced, even in the second position. In this state, the needle tube 3 can still move axially relative to the spring coil 52, and under the obstruction of the bent thorn end, the needle tube 3 cannot withdraw from the spring coil 52, so as to prevent the needle tube 3 from withdrawing from the spring coil 52. .
采用上述针保护结构，可以在针使用完成之后，对针管3的尖刺部进行收纳，避免针管3尖刺端裸露在外，造成二次伤害和交叉感染，保护患者和医护人员。预紧组件在第一位置状态下配合连接，可以避免针在正常使用的状态下，针座1相对于保护座2运动。By adopting the above-mentioned needle protection structure, the thorn part of the needle tube 3 can be stored after the needle is used, so as to prevent the thorn end of the needle tube 3 from being exposed, causing secondary injury and cross infection, and protecting patients and medical staff. The preloading assembly is matched and connected in the first position state, which can prevent the needle seat 1 from moving relative to the protection seat 2 under the normal use state of the needle.
一种针保护方法，使用如上所述的针保护结构；A needle protection method using the needle protection structure as described above;
针使用时，针座1相对于保护座2位于第一位置状态，穿针通道42与针孔对齐，扭簧5处于舒张储能状态；针管3的尖刺端从穿针通道42伸出，且针管3与盖板4接触，阻止盖板4相对于保护座2转动；在针使用的过程中，预紧组件配合连接，避免针在正常使用的状态下，针座1相对于保护座2运动。When the needle is in use, the needle seat 1 is in the first position relative to the protective seat 2, the needle piercing channel 42 is aligned with the needle hole, and the torsion spring 5 is in a state of relaxation and energy storage; the pointed end of the needle tube 3 protrudes from the needle piercing channel 42, And the needle tube 3 is in contact with the cover plate 4, preventing the cover plate 4 from rotating relative to the protection seat 2; in the process of using the needle, the pre-tightening assembly is matched and connected to avoid the needle seat 1 relative to the protection seat 2 when the needle is in normal use. sports.
使用完成后，针座1相对于保护座2运动，直至针管3的尖刺端从穿针通道42退出；此时，盖板4在扭簧5的弹力作用下转动，直至穿针通道42与针管3错位，阻止针管3的尖刺端再次伸出，同时簧圈52的内径缩小，阻止针管3从簧圈52内退出。After use, the needle seat 1 moves relative to the protective seat 2 until the pointed end of the needle tube 3 withdraws from the needle threading channel 42; at this time, the cover plate 4 rotates under the elastic force of the torsion spring The dislocation of the needle tube 3 prevents the pointed end of the needle tube 3 from protruding again, and at the same time, the inner diameter of the coil 52 is reduced, preventing the needle tube 3 from withdrawing from the coil 52 .
实施例二Embodiment 2
与实施例一相比，本实施例的不同之处在于：如图11-图13所示，所述针座1的两侧分别设蝶翼14。如图13、图16-图18所示，还包括柔性材料制成的限位带6，所述限位带6的一端与针座1连接，另一端与保护座2连接；第一位置状态下，所述的限位带6处于松弛状态；第二位置状态下，所述的限位带6处于绷紧状态。第二位置状态下，所述的限位带6绷紧，可以阻止针管3向后退出。限位带6与簧圈52均能阻止针管3向后退出的作用，起到双保险的效果，进一步提高保护效果。如图13-图15所示，所述的保护座2包括壳体25和底板21，所述的壳体25与底板21压紧限位带的对应端部。Compared with the first embodiment, the difference of this embodiment is that, as shown in FIGS. 11-13 , butterfly wings 14 are respectively provided on both sides of the needle seat 1 . As shown in FIG. 13, FIG. 16-FIG. 18, it also includes a limit band 6 made of flexible material, one end of the limit band 6 is connected to the needle seat 1, and the other end is connected to the protection seat 2; the first position state In the second position, the limit belt 6 is in a relaxed state; in the second position state, the limit belt 6 is in a taut state. In the second position state, the limiting band 6 is tight, which can prevent the needle tube 3 from withdrawing backwards. Both the limiting band 6 and the spring ring 52 can prevent the needle tube 3 from withdrawing backwards, which has the effect of double insurance and further improves the protection effect. As shown in FIGS. 13-15 , the protective seat 2 includes a casing 25 and a bottom plate 21 , and the casing 25 and the bottom plate 21 press the corresponding ends of the limiting belts.
一种针保护方法，使用如上所述的针保护结构；A needle protection method using the needle protection structure as described above;
针使用时，针座1相对于保护座2位于第一位置状态，穿针通道42与针孔对齐，扭簧5处于舒张储能状态；针管3的尖刺端从穿针通道42伸出，且针管3与盖板4接触，阻止盖板4相对于保护座2转动；在针使用的过程中，预紧组件配合连接，避免针在正常使用的状态下，针座1相对于保护座2运动。When the needle is in use, the needle seat 1 is in the first position relative to the protective seat 2, the needle piercing channel 42 is aligned with the needle hole, and the torsion spring 5 is in a state of relaxation and energy storage; the pointed end of the needle tube 3 protrudes from the needle piercing channel 42, And the needle tube 3 is in contact with the cover plate 4, preventing the cover plate 4 from rotating relative to the protection seat 2; in the process of using the needle, the pre-tightening assembly is matched and connected to avoid the needle seat 1 relative to the protection seat 2 when the needle is in normal use. sports.
使用完成后，针座1相对于保护座2运动，直至针管3的尖刺端从穿针通道42退出；此时，盖板4在扭簧5的弹力作用下转动，直至穿针通道42与针管3错位，阻止针管3的尖刺端再次伸出，同时簧圈52的内径缩小，且限位带6绷紧，阻止针管3从簧圈52内退出。After use, the needle seat 1 moves relative to the protective seat 2 until the pointed end of the needle tube 3 withdraws from the needle threading channel 42; at this time, the cover plate 4 rotates under the elastic force of the torsion spring The needle tube 3 is dislocated, preventing the pointed end of the needle tube 3 from protruding again, while the inner diameter of the coil 52 is reduced, and the limiting band 6 is tightened, preventing the needle tube 3 from withdrawing from the coil 52 .
实施例三Embodiment 3
一种针装置，包括如上所述的针保护结构。A needle device comprising the needle protection structure as described above.
总之，以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。In a word, the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the present invention. within the scope of protection.
工业实用性Industrial Applicability
在此处键入工业实用性描述段落。Type an industrial applicability description paragraph here.
序列表自由内容Sequence Listing Free Content
在此处键入序列表自由内容描述段落。Type the Sequence Listing free content description paragraph here.

Claims (13)

  1. 针保护结构，其特征在于：包括针座、针管和保护座，所述的针管与针座连接；所述的保护座上设有针孔，并旋转活动连接有盖板，所述的盖板上设有穿针通道；The needle protection structure is characterized in that: it includes a needle seat, a needle tube and a protection seat, the needle tube is connected with the needle seat; the protection seat is provided with a needle hole, and is connected with a cover plate in a rotatable manner, and the cover plate There is a needle passage on it;
    还包括锁针组件，所述的锁针组件包括扭簧，所述扭簧的簧圈与针孔对齐设置；所述扭簧的第一扭臂与保护座对应，第二扭臂与盖板对应；It also includes a locking needle assembly, the locking needle assembly includes a torsion spring, the coil of the torsion spring is aligned with the needle hole; the first torsion arm of the torsion spring corresponds to the protection seat, and the second torsion arm corresponds to the cover plate. correspond;
    所述的针座相对于保护座至少有以下两个位置状态：The needle seat has at least the following two position states relative to the protective seat:
    第一位置状态下，穿针通道与针孔对齐，此时，扭簧处于舒张储能状态，针管穿过簧圈、针孔及穿针通道；In the first position state, the needle threading channel is aligned with the needle hole, at this time, the torsion spring is in a state of relaxation and energy storage, and the needle tube passes through the coil, the needle hole and the needle threading channel;
    第二位置状态下，针管从穿针通道退出，所述的穿针通道与针孔错开；同时扭簧的簧圈阻止针管从簧圈内退出。In the second position state, the needle tube is withdrawn from the needle threading channel, and the needle threading channel is staggered from the needle hole; at the same time, the coil of the torsion spring prevents the needle tube from withdrawing from the coil.
  2. 根据权利要求1所述的针保护结构，其特征在于：第一位置状态下，所述的针管与簧圈之间留有间隙；第二位置状态下，所述的簧圈抱紧针管。The needle protection structure according to claim 1, wherein: in the first position state, a gap is left between the needle tube and the coil; in the second position state, the coil hugs the needle tube tightly.
  3. 根据权利要求1所述的针保护结构，其特征在于：所述针管的尖刺端折弯设置。The needle protection structure according to claim 1, wherein the pointed end of the needle tube is bent and arranged.
  4. 根据权利要求1所述的针保护结构，其特征在于：所述的盖板上设有插槽，所述的第二扭臂部分或全部***插槽内，所述的插槽呈长条状。The needle protection structure according to claim 1, wherein a slot is provided on the cover plate, a part or all of the second torsion arm is inserted into the slot, and the slot is elongated .
  5. 根据权利要求1所述的针保护结构，其特征在于：所述针座的两侧分别设有手持部。The needle protection structure according to claim 1, wherein the two sides of the needle seat are respectively provided with hand-held parts.
  6. 根据权利要求1所述的针保护结构，其特征在于：所述针座的两侧分别设蝶翼。The needle protection structure according to claim 1, wherein the two sides of the needle seat are respectively provided with butterfly wings.
  7. 根据权利要求1所述的针保护结构，其特征在于：还包括设置在针座与保护座之间的预紧组件；所述的预紧组件包括设置在针座上的弹性凸块，及设置在保护座上的压紧槽，第一位置状态下，所述的弹性凸块***压紧槽内。The needle protection structure according to claim 1, characterized in that: it further comprises a preload assembly arranged between the needle seat and the protection seat; the preload assembly comprises an elastic bump arranged on the needle seat, and the In the pressing groove on the protection seat, in the first position state, the elastic projection is inserted into the pressing groove.
  8. 根据权利要求7所述的针保护结构，其特征在于：所述的保护座上设有凸起部，所述的针座上设有与凸起部匹配的容置腔；所述的压紧槽设置在凸起部上，所述的弹性凸块设置在容置腔内。The needle protection structure according to claim 7, wherein the protection seat is provided with a raised portion, and the needle seat is provided with a accommodating cavity matched with the raised portion; The groove is arranged on the protruding part, and the elastic projection is arranged in the accommodating cavity.
  9. 根据权利要求1-8中任一项所述的针保护结构，其特征在于：还包括柔性材料制成的限位带，所述限位带的一端与针座连接，另一端与保护座连接；第一位置状态下，所述的限位带处于松弛状态；第二位置状态下，所述的限位带处于绷紧状态。The needle protection structure according to any one of claims 1-8, characterized in that: it further comprises a limit band made of a flexible material, one end of the limit band is connected to the needle seat, and the other end is connected to the protection seat ; In the first position state, the limit belt is in a relaxed state; in the second position state, the limit belt is in a taut state.
  10. 根据权利要求9所述的针保护结构，其特征在于：所述的保护座包括壳体和底板，所述的壳体与底板压紧限位带的对应端部。The needle protection structure according to claim 9, wherein the protection seat comprises a casing and a bottom plate, and the casing and the bottom plate are pressed against the corresponding ends of the limiting band.
  11. 根据权利要求10所述的针保护结构，其特征在于：所述的壳体和底板连接并围合成安装腔，所述的安装腔内设有基座，所述的扭簧设置在基座上，所述的盖板与基座旋转活动连接；所述的底板上设有与盖板匹配的通孔，所述的盖板设置在通孔内。The needle protection structure according to claim 10, wherein the housing and the bottom plate are connected to form an installation cavity, the installation cavity is provided with a base, and the torsion spring is arranged on the base , the cover plate is connected with the base rotatably; the bottom plate is provided with a through hole matched with the cover plate, and the cover plate is arranged in the through hole.
  12. 一种针保护方法，其特征在于：使用如权利要求1-11中任一项所述的针保护结构；A needle protection method, characterized in that: using the needle protection structure according to any one of claims 1-11;
    针使用时，针座相对于保护座位于第一位置状态，穿针通道与针孔对齐，扭簧处于舒张储能状态；针管的尖刺端从穿针通道伸出，且针管与盖板接触，阻止盖板相对于保护座转动；When the needle is in use, the needle seat is in the first position relative to the protective seat, the needle-piercing channel is aligned with the needle hole, and the torsion spring is in a state of relaxation and energy storage; the pointed end of the needle tube protrudes from the needle-piercing channel, and the needle tube is in contact with the cover plate , to prevent the cover from rotating relative to the protective seat;
    使用完成后，针座相对于保护座运动，直至针管的尖刺端从穿针通道退出；此时，盖板在扭簧的弹力作用下转动，直至穿针通道与针管错位，阻止针管的尖刺端再次伸出，同时簧圈的内径缩小，阻止针管从簧圈内退出。After use, the needle seat moves relative to the protective seat until the pointed end of the needle tube exits the needle passage; at this time, the cover plate rotates under the elastic force of the torsion spring until the needle passage is misaligned with the needle tube, preventing the sharp end of the needle tube. The barbed end extends again, while the inner diameter of the coil shrinks, preventing the needle from withdrawing from the coil.
  13. 一种针装置，其特征在于：包括如权利要求1-11中任一项所述的针保护结构。A needle device, characterized by comprising the needle protection structure according to any one of claims 1-11.
PCT/CN2021/122581 2020-10-12 2021-10-08 Needle protection structure and protection method, and needle device WO2022078237A1 (en)

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CN202011085276.6 2020-10-12
CN202011085276.6A CN112155565B (en) 2020-10-12 2020-10-12 Needle protection structure and needle device
CN202011464717.3A CN112450926B (en) 2020-12-14 2020-12-14 Needle protection structure, protection method and needle device
CN202011464717.3 2020-12-14

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