WO2023027532A1 - Blood-drawing device and needle unit for blood-drawing device - Google Patents

Blood-drawing device and needle unit for blood-drawing device Download PDF

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Publication number
WO2023027532A1
WO2023027532A1 PCT/KR2022/012762 KR2022012762W WO2023027532A1 WO 2023027532 A1 WO2023027532 A1 WO 2023027532A1 KR 2022012762 W KR2022012762 W KR 2022012762W WO 2023027532 A1 WO2023027532 A1 WO 2023027532A1
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WO
WIPO (PCT)
Prior art keywords
needle
unit
carrier
sliding
barrel
Prior art date
Application number
PCT/KR2022/012762
Other languages
French (fr)
Korean (ko)
Inventor
최임철
Original Assignee
(주) 로아메드
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Publication date
Application filed by (주) 로아메드 filed Critical (주) 로아메드
Publication of WO2023027532A1 publication Critical patent/WO2023027532A1/en

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    • 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
    • A61B5/150007—Details
    • A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
    • A61B5/150106—Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced
    • A61B5/150152—Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced by an adequate mechanical impact on the puncturing location
    • 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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/150022—Source of blood for capillary blood or interstitial fluid
    • 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
    • A61B5/150007—Details
    • A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
    • A61B5/150106—Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced
    • A61B5/15016—Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced by accessories for bringing the piercing element into the body, e.g. through rotation of the piercing element
    • 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
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • 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
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15103—Piercing procedure
    • A61B5/15107—Piercing being assisted by a triggering mechanism
    • A61B5/15109—Fully automatically triggered, i.e. the triggering does not require a deliberate action by the user, e.g. by contact with the patient's skin
    • 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
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
    • A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
    • 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
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15142—Devices intended for single use, i.e. disposable
    • A61B5/15144—Devices intended for single use, i.e. disposable comprising driving means, e.g. a spring, for retracting the piercing unit into the housing
    • 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
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use

Definitions

  • the present invention relates to a lancing device having a lancing device and a needle unit for the lancing device.
  • the lancing device for blood collection or bloodletting has a needle unit that can be separated and removed after one-time use.
  • This needle unit consists of a needle housing and a needle carrier capable of sliding therein, and the needle carrier is fired forward by striking means such as a ball member. In the course of such firing, twisting or lateral fluctuations may occur, which may increase pain.
  • An object of the present invention is to provide a lancing device and a needle unit for the lancing device that minimize pain occurring during the blood sampling process.
  • the above object is, in the needle unit for a lancing device according to the present invention, a tubular needle housing, a needle carrier capable of sliding along an axial direction within the needle housing and having a blood sampling needle mounted at a tip thereof, the needle housing and the needle.
  • a needle unit for a lancing device having a sliding guide interposed between the carriers and guiding the sliding movement of the needle carrier in the axial direction.
  • the sliding guide portion may be composed of a guide rail formed on an inner wall surface of the needle housing and a sliding portion formed on the needle carrier and sliding along the guide rail.
  • the needle carrier is inserted into and accommodated in the needle housing, so that the needle carrier is shaken. effective in reducing
  • the needle carrier may have a carrier body extending along an axial direction to support the needles, and wing portions extending in a horizontal direction from the carrier body, and the sliding portion may be formed on the wing portion.
  • the above object is, in the lancing device according to the present invention, the needle unit according to any one of the preceding items, a barrel having a tip opening in which the needle unit is accommodated and mounted, and a tip of the needle carrier in the needle unit accommodated in the barrel. It is also achieved by a lancing device characterized in that it has a ball member capable of striking in a direction.
  • the needle housing has a locking protrusion protruding from the outer surface
  • the barrel may have a guide slot for guiding the locking protrusion in an axial direction and a locking slot bent in a circumferential direction from the guide slot to easily insert the needle unit into the barrel. can be detached.
  • a driving unit for driving the ball member by hitting may be further provided, so that the blood sampling operation may be performed using the electric power of the driving unit, and blood collection may be performed continuously.
  • it may have a return spring interposed between the needle carrier and the needle housing to be compressed by the wing portion of the needle carrier and then return by an elastic force, so that the needle carrier launched in the front end can be returned by the elastic force of the return spring. can be returned to its original position.
  • the bumper spring may be interposed at the front end of the needle carrier and extended longer than the protruding length of the needle, the bumper spring may hit the area around the blood sampling point before the needle, thereby minimizing pain for the user.
  • FIG. 1 is a perspective view of a needle unit for a lancing device according to the present invention.
  • FIG. 2 is an exploded perspective view of the lancing device of the needle unit for lancing device according to the present invention.
  • FIG. 3 is a longitudinal cross-sectional view of the lancing device of the needle unit for lancing device according to the present invention.
  • FIG. 4 is a perspective view of a lancing device according to the present invention.
  • FIG. 5 is an exploded perspective view of the lancing device according to the present invention.
  • FIG. 6 is a longitudinal cross-sectional view of the lancing device according to the present invention.
  • FIG. 7(a) to (c) are diagrams showing the assembly process of the needle unit for lancing device according to the present invention.
  • FIGS. 8(a) to (d) are diagrams showing the operation of the needle unit inserted into the lancing device according to the present invention.
  • needle unit 110 needle housing
  • protrusion guide 120 needle carrier
  • protection extension 130 return spring
  • rear coupling part 220 rear barrel
  • the needle unit 100 for a lancing device includes a needle housing 110.
  • the needle housing 110 is formed as a tubular body with both ends open and having a front end opening and a rear end opening.
  • the needle housing 110 has a guide rail 111 formed in a groove shape penetrating the outer and inner surfaces of the needle housing 110 .
  • the guide rail 111 is formed in the form of a groove cut outward along the inner wall surface in the axial direction of the needle housing 110 and may be provided in a plurality of pieces spaced apart from each other around the inner wall surface.
  • the guide rail 111 may be concave from the inner wall surface without penetrating the outer surface or formed in a groove shape having a step with the inner wall surface to accommodate the sliding portion 124 described later.
  • a locking protrusion 112 protrudes from the outer surface of the rear end of the needle housing 110 on the same line as the guide rail 111 .
  • the needle carrier 120 is inserted through the opened rear end of the needle housing 110 .
  • a blood sampling needle 121 is mounted on the front end of the needle carrier 120 .
  • the blood collection needle 121 is supported by the carrier body 122 .
  • the blood collection needle 121 is surrounded by a protection extension 125 .
  • the protective extension 125 extending in the direction of the tip is integrally formed during molding of the carrier body 122 to hygienically protect the blood sampling needle 121 .
  • the carrier body 122 has a shape elongated along the axial direction of the blood collection needle 121 and has a plurality of wing parts 123 extending in the transverse direction of the carrier body 122 .
  • the wings 123 may be arranged symmetrically about an axis line or arranged at a constant angle to each other.
  • a sliding part 124 is formed at the end of each wing part 123 .
  • the sliding part 124 is inserted into the guide rail 111 of the needle housing 110 so that the needle carrier 120 slides along the guide rail 111 . Due to the slide guide portion including the sliding portion 124 and the guide rail 111, the needle carrier 120 can move in an axial direction in a straight line, and vibration during movement is suppressed. Even if the sliding part is omitted at the distal end of some of the wing parts 123, the wing part may be arranged so that smooth sliding motion is achieved.
  • a protruding guide 113 protruding along the longitudinal direction of the needle housing 110 is formed on the inner wall of the front end of the needle housing 110 .
  • the protruding guide 113 supports the needle carrier 120 in the circumferential direction to guide the sliding motion of the needle carrier 120 .
  • a space is formed by being spaced apart from each other between the protruding guide 113 and the inner wall of the needle housing 110, and the return spring 130 is interposed in the space.
  • the return spring 130 may be compressed in contact with the wing portion 123 of the needle carrier 120, and the needle carrier 120 returns to its original position by the elastic force of the return spring 130.
  • the front end of the needle carrier 120 is equipped with a bumper spring 140 surrounding one end of the blood collection needle 121 and the protection extension 125 .
  • the bumper spring 140 extends longer in the distal direction than the blood collection needle 121, so that when the needle carrier 120 is launched, it contacts and presses the user's skin before the blood collection needle 121, so that the tactile sensation around the contact portion is felt. It disturbs and blocks pain sensation, so it can reduce the user's pain.
  • FIG 4 to 6 are views showing the lancing device 10 according to the present invention.
  • the lancing device 10 includes a needle unit 100 .
  • the needle unit 100 at this time has the same function and configuration as the needle unit 100 for the lancing device described above.
  • the needle unit 100 is accommodated in the barrel 200.
  • the front barrel 210 and the rear barrel 220 are combined to form one barrel 200.
  • the tip barrel 210 is a tubular body and accommodates the needle unit 100 through the tip opening 211.
  • a guide slot 212 is formed around the tip opening 211 .
  • the guide slot 212 accommodates the protrusion 112 protruding from the outer surface of the needle housing 110 to guide the path through which the needle unit 100 is inserted into the tip barrel 210.
  • An engaging slot 213 bent along the circumferential direction of the barrel 200 extends at an end of the guide slot 212 .
  • the rear barrel 220 is a tubular body accommodating the ball member 230 and the driving unit 240 .
  • a barrel connector 221 is formed at the front end of the rear barrel 220 so that a ball member 230 to be described later can move inside the barrel 200.
  • a front coupling portion 222 is formed around the barrel connector 221 and coupled to the rear coupling portion 214 of the front barrel 210.
  • the rear end of the rear end barrel 220 is shielded, and the ball member 230 and the drive unit 240 are accommodated therein.
  • the ball member 230 is a member that hits the needle carrier 120 by receiving force from the driving unit 240 .
  • the driving unit 240 is a device that directly strikes the ball member 230 .
  • the driving unit 240 may hit the ball member 230 once or several times continuously.
  • the driving unit 240 is preferably composed of an electric actuator, but may be composed of a mechanical driving device or an actuator and other transmission devices.
  • a handle 300 is formed at one end of the barrel 200 . Through the handle 300, the user can perform blood sampling more easily than manually holding the barrel 200.
  • a drive trigger 310 is present on the handle 300 .
  • the driving trigger 310 is a switch that controls the operation of the driving unit 240, and when the driving trigger 310 is pressed, the driving unit 240 strikes the ball member 230.
  • Figure 7 (a) to (c) is a view showing the assembly process of the needle unit 100 according to the present invention.
  • FIG. 7 (a) shows a state in which the needle housing 110, the needle carrier 120, the return spring 130, and the bumper spring 140 are prepared to configure the needle unit 100.
  • the return spring 130 is inserted into the protrusion guide 113 of the needle housing 110, and the bumper spring 140 is inserted into the front end of the needle carrier 120.
  • the wing portion 123 formed at the rear end of the needle carrier 120 has an elastic cutout (not shown) to be elastically bent during the insertion process.
  • the sliding portion 124 extending from the wing portion 123 is assembled to be inserted into the guide rail 111.
  • the sliding guide portion in which the sliding portion 124 and the guide rail 111 form a combination is preferably configured by inserting the groove-shaped guide rail 111 and the protruding sliding portion 124.
  • the guide rail 111 protrudes from the inner wall surface in the axial direction of the needle housing 110 and the sliding part 124 has a groove form for accommodating the protrusion of the guide rail 111, or the guide rail 111 It may be configured in various forms, such as combining the groove shape and the protruding shape, and the sliding part 124 combining the protruding shape and the groove shape corresponding thereto.
  • Figure 7 (b) shows a cross-section of the needle housing 110 assembled through the assembly process of Figure 7 (a).
  • the inserted needle carrier 120 is inserted into the needle housing 110 by the elastic force of the return spring 130 and the resistance generated by the rear end of the sliding part 124 being caught on the end of the guide rail 111. are maintaining
  • FIG. 7(c) shows a state in which the needle unit 100 is assembled to the front end barrel 210 of the barrel 200.
  • the locking protrusion 112 formed at the rear end of the needle housing 110 is inserted into the guide slot 212 formed in the tip barrel 210. Insert the needle housing 110 into the tip barrel 210 by completely pushing the protrusion 112 toward the end of the guide slot 212 .
  • the needle housing 110 is rotated so that the locking protrusion 112 enters along the locking slot 213 extending from the guide slot 212 .
  • a locking protrusion (not shown) is provided at the end of the locking slot 213 to prevent the locking protrusion 112 inserted into the locking slot 213 from being easily separated.
  • FIG 8(a) to (d) are diagrams showing the use of the lancing device 10 and the operation of the needle unit 100 according to the present invention.
  • FIG 8(a) is a view showing a state in which the protective extension 125 is separated from the needle carrier 120 in the assembled needle unit 100.
  • the user applies force in the longitudinal direction of the lancing device 10 while rotating the protective extension 125 in the axial direction to separate it from the needle carrier 120 .
  • the protection extension 125 is separated, the blood sampling needle 121 is exposed to the outside.
  • FIG 8(b) is a view showing the state of the needle carrier 120 advanced as the ball member 230 strikes the needle carrier 120.
  • the driving trigger 310 provided on the handle 300 When the driving trigger 310 provided on the handle 300 is operated, the driving unit 240 operates to hit the ball member 230. Then, the ball member 230 strikes the rear end of the needle carrier 120 and the needle carrier 120 is launched. At this time, the forward end of the needle carrier 120 can be moved forward to a line that does not deviate from the outside of the needle housing 110.
  • the guide rail 111 formed in the needle housing 110 and the sliding part 124 inserted into the guide rail 111 that is, the sliding guide part and the protruding guide 113 provided at the front end of the needle housing 110
  • the needle carrier 120 is capable of linear motion with minimized fluctuations. It is preferable that the protruding guide 113 continues to be in partial contact with the needle carrier 120 from the time the needle carrier 120 is assembled. As the assembled needle carrier 120 moves forward, the return spring 130 is compressed by the wing 123 .
  • FIG. 8(c) is a view showing a state in which the blood collection needle 121 is inserted into the skin through the process of FIG. 8(b).
  • the blood collection needle 121 exposed at the front end of the needle unit 100 comes close to the epidermis of the blood collection subject according to the movement of the needle carrier 120 .
  • the bumper spring 140 first comes into contact with the epidermis of the blood sampling subject. While the bumper spring 140 pressurizes and compresses the epidermis of the blood sample, the tactile sensation around the contact portion is disturbed and the pain sensation is blocked, so the user's pain can be reduced. As the bumper spring 140 is sufficiently compressed, the blood collection needle 121 is inserted into the epidermis of the blood collection subject.
  • FIG. 8(d) is a view showing the state of the needle carrier 120 returning after blood sampling.
  • the inserted blood sampling needle 121 is propelled backward by the elastic force of the compressed bumper spring 140 and the return spring 130, and quickly comes out of the blood collection subject's epidermis. Even when returning to the rear, the needle carrier 120 moves linearly without being shaken by the protruding guide 113 and the sliding guide unit, and returns to its original position without causing pain to the user or expanding wounds.
  • the above process may occur intermittently or continuously.
  • the used needle unit 100 is separated from the barrel 200 and discarded, and a new needle unit 100 is assembled and used in the barrel 200, so that the blood sampling device 10 can be used hygienically. there is.
  • the detachable needle unit 100 has a sliding guide portion that guides the needle carrier 120 inserted therein as it moves, reducing vibration when the needle carrier 120 moves in the forward and backward directions and reducing pain for the user. Minimize.
  • the sliding guide portion may have a guide rail 111 formed on the needle housing 110 and a sliding portion 124 formed on the needle carrier 120 .
  • the needle carrier 120 may be linearly moved by the sliding part 124 and the guide rail 111 formed on the inner wall surface of the needle housing 110, thereby reducing the shaking of the needle carrier 120.
  • the lancing device 10 includes a needle unit 100 having the above characteristics, a barrel 200 having a tip opening 211, and a needle carrier in the needle unit 100 accommodated in the barrel 200 ( 120), the ball member 230 and the drive unit 240 are provided so that the user can conveniently perform continuous blood sampling.

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  • Health & Medical Sciences (AREA)
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  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
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  • Engineering & Computer Science (AREA)
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  • Animal Behavior & Ethology (AREA)
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  • Dermatology (AREA)
  • Pain & Pain Management (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The present invention relates to a blood-drawing device and a needle unit for a blood-drawing device. The blood-drawing device comprises: a detachable needle unit for the blood-drawing device, the detachable needle unit having a tubular needle housing, a needle carrier which can slide in the axial direction within the needle housing and has a blood-drawing needle mounted to the front end, a sliding guide part which is disposed between the needle housing and the needle carrier and guides the sliding of the needle carrier in the axial direction; a barrel having a front end opening in which the needle unit is accommodated and mounted; and a hammer member which is accommodated in the barrel and can strike the needle carrier in the needle unit in the front end direction. Therefore, the blood-drawing device can minimize pain during the blood-drawing process.

Description

채혈기 및 채혈기용 니들유니트 Lancing device and needle unit for lancing device
본 발명은 채혈기 및 채혈기용 니들유니트를 가지는 채혈기에 관한 것이다.The present invention relates to a lancing device having a lancing device and a needle unit for the lancing device.
혈액 채취용 혹은 사혈용 채혈기는 1회 사용 후 분리 제거 가능한 니들유니트를 갖는다. The lancing device for blood collection or bloodletting has a needle unit that can be separated and removed after one-time use.
이러한 니들유니트는 니들하우징과 그 내부에서 슬라이딩 이동가능한 니들캐리어로 이루어져 있고, 니들캐리어는 공이부재 등의 타격 수단에 의해 타격적으로 전방으로 발사된다. 이러한 발사되는 과정에서 뒤틀림 혹은 가로방향의 요동이 발생하여 통증을 증대시킬 수 있다. This needle unit consists of a needle housing and a needle carrier capable of sliding therein, and the needle carrier is fired forward by striking means such as a ball member. In the course of such firing, twisting or lateral fluctuations may occur, which may increase pain.
본 발명의 목적은 채혈 과정에서 발생하는 통증을 최소화하는 채혈기 및 채혈기용 니들유니트를 제공하는 것이다. An object of the present invention is to provide a lancing device and a needle unit for the lancing device that minimize pain occurring during the blood sampling process.
상기 목적은, 본 발명에 따라 채혈기용 니들유니트에 있어서, 관상의 니들하우징, 상기 니들하우징 내에 축선방향을 따라 슬라이딩 이동 가능하며, 선단에 채혈용 니들이 장착되어 있는 니들캐리어, 상기 니들하우징과 상기 니들캐리어 사이에 개재되어 상기 니들캐리어의 축선방향 슬라이딩 이동을 안내하는 슬라이딩가이드부를 가지는 채혈기용 니들유니트에 의해 달성된다.The above object is, in the needle unit for a lancing device according to the present invention, a tubular needle housing, a needle carrier capable of sliding along an axial direction within the needle housing and having a blood sampling needle mounted at a tip thereof, the needle housing and the needle This is achieved by a needle unit for a lancing device having a sliding guide interposed between the carriers and guiding the sliding movement of the needle carrier in the axial direction.
여기서, 상기 슬라이딩가이드부는 상기 니들하우징의 내벽면에 형성된 가이드레일과 상기 니들캐리어에 형성되어 상기 가이드레일을 따라 슬라이딩되는 슬라이딩부로 구성될 수 있다. Here, the sliding guide portion may be composed of a guide rail formed on an inner wall surface of the needle housing and a sliding portion formed on the needle carrier and sliding along the guide rail.
또한, 상기 가이드레일은 상기 내벽면으로부터 외향 절개되어 형성되며, 상기 슬라이딩부는 상기 가이드레일에 수용되어 슬라이딩하는 것을 특징으로 할 경우, 니들캐리어가 니들하우징내에 삽입, 수용된 형태로 이송되므로 니들캐리어의 흔들림 감소에 효과적이다.In addition, when the guide rail is formed by being cut outward from the inner wall surface, and the sliding part is accommodated in the guide rail and slides, the needle carrier is inserted into and accommodated in the needle housing, so that the needle carrier is shaken. effective in reducing
그리고, 상기 니들캐리어는 상기 니들을 지지하여 축선방향을 따라 연장된 캐리어본체와, 상기 캐리어본체로부터 가로방향으로 확장된 날개부를 가지며, 상기 슬라이딩부는 상기 날개부에 형성될 수 있다.In addition, the needle carrier may have a carrier body extending along an axial direction to support the needles, and wing portions extending in a horizontal direction from the carrier body, and the sliding portion may be formed on the wing portion.
한편, 상기 목적은, 본 발명에 따라 채혈기에 있어서, 어느 한 항에 따른 니들유니트와, 상기 니들유니트가 수용 장착되는 선단개구를 가진 배럴, 상기 배럴 내에 수용되어 상기 니들유니트 내의 상기 니들캐리어를 선단방향으로 타격할 수 있는 공이부재를 갖는 것을 특징으로 하는 채혈기에 의해서도 달성된다.On the other hand, the above object is, in the lancing device according to the present invention, the needle unit according to any one of the preceding items, a barrel having a tip opening in which the needle unit is accommodated and mounted, and a tip of the needle carrier in the needle unit accommodated in the barrel. It is also achieved by a lancing device characterized in that it has a ball member capable of striking in a direction.
여기서, 상기 니들하우징은 외표면에 돌출한 걸림돌기를 가지며, 상기 배럴은 상기 걸림돌기를 축선방향으로 안내하는 안내슬롯과 상기 안내슬롯으로부터 원주방향으로 절곡된 걸림슬롯을 가질 수 있어 니들유니트를 배럴에 쉽게 탈부착 시킬 수 있다.Here, the needle housing has a locking protrusion protruding from the outer surface, and the barrel may have a guide slot for guiding the locking protrusion in an axial direction and a locking slot bent in a circumferential direction from the guide slot to easily insert the needle unit into the barrel. can be detached.
그리고, 상기 공이부재를 타격 구동하는 구동부를 더 가질 수 있어 구동부의 전동력을 이용해 채혈작업을 수행할 수 있으며, 연속적인 채혈이 가능하다.In addition, a driving unit for driving the ball member by hitting may be further provided, so that the blood sampling operation may be performed using the electric power of the driving unit, and blood collection may be performed continuously.
그리고, 상기 니들캐리어와 상기 니들하우징 사이에 개재되어 상기 니들캐리어의 상기 날개부에 의해 압축되었다가 탄성력에 의해 복귀하도록 하는 복귀스프링을 가질 수 있어 선단방향으로 발사된 니들캐리어를 복귀스프링의 탄성력을 통해 원위치로 복귀시킬 수 있다.In addition, it may have a return spring interposed between the needle carrier and the needle housing to be compressed by the wing portion of the needle carrier and then return by an elastic force, so that the needle carrier launched in the front end can be returned by the elastic force of the return spring. can be returned to its original position.
또한, 상기 니들캐리어의 선단부에 개재되어 상기 니들의 돌출길이보다 길게 연장된 범퍼스프링을 가질 수 있어 범퍼스프링이 채혈지점 주변을 니들보다 먼저 타격함으로 인해 사용자의 통증을 최소화할 수 있다.In addition, since the bumper spring may be interposed at the front end of the needle carrier and extended longer than the protruding length of the needle, the bumper spring may hit the area around the blood sampling point before the needle, thereby minimizing pain for the user.
도 1은 본 발명에 따른 채혈기용 니들유니트의 사시도이다.1 is a perspective view of a needle unit for a lancing device according to the present invention.
도 2는 본 발명에 따른 채혈기용 니들유니트의 채혈기의 분해사시도이다.2 is an exploded perspective view of the lancing device of the needle unit for lancing device according to the present invention.
도 3은 본 발명에 따른 채혈기용 니들유니트의 채혈기의 종단면도이다.3 is a longitudinal cross-sectional view of the lancing device of the needle unit for lancing device according to the present invention.
도 4는 본 발명에 따른 채혈기의 사시도이다.4 is a perspective view of a lancing device according to the present invention.
도 5는 본 발명에 따른 채혈기의 분해사시도이다.5 is an exploded perspective view of the lancing device according to the present invention.
도 6은 본 발명에 따른 채혈기의 종단면도이다. 6 is a longitudinal cross-sectional view of the lancing device according to the present invention.
도 7의 (a) 내지 (c)는 본 발명에 따른 채혈기용 니들유니트의 조립과정을 나타낸 도면이다.7(a) to (c) are diagrams showing the assembly process of the needle unit for lancing device according to the present invention.
도 8의 (a) 내지 (d)는 본 발명에 따른 채혈기에 삽입된 니들유니트의 구동을 나타낸 도면이다.8(a) to (d) are diagrams showing the operation of the needle unit inserted into the lancing device according to the present invention.
** 도면의 주요 부분에 대한 부호의 설명 **** Description of the symbols for the main parts of the drawings **
100 : 니들유니트 110 : 니들하우징100: needle unit 110: needle housing
111 : 가이드레일 112 : 걸림돌기111: guide rail 112: stumbling block
113 : 돌출가이드 120 : 니들캐리어113: protrusion guide 120: needle carrier
121 : 채혈용 니들 122 : 캐리어본체121: blood collection needle 122: carrier body
123 : 날개부 124 : 슬라이딩부123: wing part 124: sliding part
125 : 보호연장부 130 : 복귀스프링125: protection extension 130: return spring
140 : 범퍼스프링 200 : 배럴140: bumper spring 200: barrel
210 : 선단배럴 211 : 선단개구210: tip barrel 211: tip opening
212 : 안내슬롯 213 : 걸림슬롯212: guide slot 213: jamming slot
214 : 후단결합부 220 : 후단배럴214: rear coupling part 220: rear barrel
221 : 배럴연결구 222 : 선단결합부221: barrel connector 222: tip joint
230 : 공이부재 240 : 구동부230: ball member 240: driving unit
300 : 핸들 310 : 구동트리거300: handle 310: driving trigger
도 1 내지 도 3은 본 발명에 따른 니들유니트(100)의 사시도, 분해사시도 및 종단면도이다. 이들 도면에 따르면, 본 발명에 따른 채혈기용 니들유니트(100)는 니들하우징(110)을 포함한다.1 to 3 are a perspective view, an exploded perspective view and a longitudinal sectional view of a needle unit 100 according to the present invention. According to these drawings, the needle unit 100 for a lancing device according to the present invention includes a needle housing 110.
니들하우징(110)은 양단이 개방되어 선단개구와 후단개구를 가진 관상체로 형성되어 있다. 니들하우징(110)에는 니들하우징(110)의 외표면과 내표면을 관통한 홈 형태로 형성되는 가이드레일(111)이 형성되어 있다. 가이드레일(111)은 니들하우징(110)의 축선방향 내벽면을 따라서 외향 절개된 홈 형태로 형성되며 내벽면의 둘레로 서로 이격되어 복수개로 마련될 수 있다. 가이드레일(111)은 외표면을 관통하지 않고 내벽면으로부터 오목하거나 내벽면과 단차를 갖는 홈 형태로 형성되어 후술하는 슬라이딩부(124)를 수용하도록 구성될 수 있다. 가이드레일(111)과 동일선상의 니들하우징(110)의 후단 외표면에는 걸림돌기(112)가 돌출되어 있다. The needle housing 110 is formed as a tubular body with both ends open and having a front end opening and a rear end opening. The needle housing 110 has a guide rail 111 formed in a groove shape penetrating the outer and inner surfaces of the needle housing 110 . The guide rail 111 is formed in the form of a groove cut outward along the inner wall surface in the axial direction of the needle housing 110 and may be provided in a plurality of pieces spaced apart from each other around the inner wall surface. The guide rail 111 may be concave from the inner wall surface without penetrating the outer surface or formed in a groove shape having a step with the inner wall surface to accommodate the sliding portion 124 described later. A locking protrusion 112 protrudes from the outer surface of the rear end of the needle housing 110 on the same line as the guide rail 111 .
니들하우징(110)의 개방된 후단개구를 통해 니들캐리어(120)가 삽입된다. 니들캐리어(120)의 선단에는 채혈용 니들(121)이 장착되어있다. 채혈용 니들(121)은 캐리어본체(122)에 의해 지지되고 있다. 채혈용 니들(121)은 보호연장부(125)에 의해 감싸져 있다. 선단 방향으로 길게 연장된 보호연장부(125)는 캐리어본체(122)의 성형 시 일체로 형성되어 채혈용 니들(121)을 위생적으로 보호한다. 캐리어본체(122)는 채혈용 니들(121)의 축선방향을 따라 길게 연장된 모양을 가지며, 캐리어본체(122)의 가로방향으로 확장된 복수개의 날개부(123)를 가진다. 날개부(123)는 축선을 중심으로 대칭 형태로 배치되거나 서로 일정한 각도로 배치될 수 있다. 각 날개부(123)의 말단에는 슬라이딩부(124)가 형성되어 있다. 슬라이딩부(124)는 니들하우징(110)의 가이드레일(111)에 삽입되어 니들캐리어(120)가 가이드레일(111)을 따라 슬라이딩 운동하도록 한다. 이러한 슬라이딩부(124)와 가이드레일(111)이 포함된 슬라이드가이드부로 인해 니들캐리어(120)는 축선방향으로 곧게 이동할 수 있으며 이동 중에 요동 발생이 억제된다. 일부 날개부(123)의 말단에 슬라이딩부가 생략되어도 원활한 슬라이딩 운동이 이루어지도록 날개부를 배치할 수도 있다. The needle carrier 120 is inserted through the opened rear end of the needle housing 110 . A blood sampling needle 121 is mounted on the front end of the needle carrier 120 . The blood collection needle 121 is supported by the carrier body 122 . The blood collection needle 121 is surrounded by a protection extension 125 . The protective extension 125 extending in the direction of the tip is integrally formed during molding of the carrier body 122 to hygienically protect the blood sampling needle 121 . The carrier body 122 has a shape elongated along the axial direction of the blood collection needle 121 and has a plurality of wing parts 123 extending in the transverse direction of the carrier body 122 . The wings 123 may be arranged symmetrically about an axis line or arranged at a constant angle to each other. A sliding part 124 is formed at the end of each wing part 123 . The sliding part 124 is inserted into the guide rail 111 of the needle housing 110 so that the needle carrier 120 slides along the guide rail 111 . Due to the slide guide portion including the sliding portion 124 and the guide rail 111, the needle carrier 120 can move in an axial direction in a straight line, and vibration during movement is suppressed. Even if the sliding part is omitted at the distal end of some of the wing parts 123, the wing part may be arranged so that smooth sliding motion is achieved.
한편, 니들하우징(110)의 선단부 내벽에는 니들하우징(110)의 길이방향을 따라 돌출된 돌출가이드(113)가 형성되어 있다. 돌출가이드(113)는 니들캐리어(120)를 둘레방향으로 지지하여 니들캐리어(120)의 슬라이딩 운동을 가이드 한다. 돌출가이드(113)와 니들하우징(110)의 내벽 사이는 서로 이격되어 공간이 형성되며, 해당 공간에는 복귀스프링(130)이 개재된다. 복귀스프링(130)은 니들캐리어(120)의 날개부(123)에 닿아 압축될 수 있으며, 복귀스프링(130)의 탄성력에 의해 니들캐리어(120)는 원위치로 복귀하게 한다.On the other hand, a protruding guide 113 protruding along the longitudinal direction of the needle housing 110 is formed on the inner wall of the front end of the needle housing 110 . The protruding guide 113 supports the needle carrier 120 in the circumferential direction to guide the sliding motion of the needle carrier 120 . A space is formed by being spaced apart from each other between the protruding guide 113 and the inner wall of the needle housing 110, and the return spring 130 is interposed in the space. The return spring 130 may be compressed in contact with the wing portion 123 of the needle carrier 120, and the needle carrier 120 returns to its original position by the elastic force of the return spring 130.
니들캐리어(120)의 선단부에는 채혈용 니들(121)과 보호연장부(125)의 일단을 둘러싸는 범퍼스프링(140)이 장착되어 있다. 범퍼스프링(140)은 채혈용 니들(121)보다 선단방향으로 더 길게 연장되어 있어 니들캐리어(120)의 발사 시 채혈용 니들(121)보다 먼저 사용자의 피부에 접촉하고 가압하여 접촉부 주변의 촉각을 교란시키고 통각을 차단하게 되므로 사용자의 통증을 줄여줄 수 있다. The front end of the needle carrier 120 is equipped with a bumper spring 140 surrounding one end of the blood collection needle 121 and the protection extension 125 . The bumper spring 140 extends longer in the distal direction than the blood collection needle 121, so that when the needle carrier 120 is launched, it contacts and presses the user's skin before the blood collection needle 121, so that the tactile sensation around the contact portion is felt. It disturbs and blocks pain sensation, so it can reduce the user's pain.
도 4 내지 6은 본 발명에 따른 채혈기(10)를 나타낸 도면이다.4 to 6 are views showing the lancing device 10 according to the present invention.
채혈기(10)는 니들유니트(100)를 구비한다. 이때의 니들유니트(100)는 상기 기재된 채혈기용 니들유니트(100)와 동일한 기능과 구성을 가진다.The lancing device 10 includes a needle unit 100 . The needle unit 100 at this time has the same function and configuration as the needle unit 100 for the lancing device described above.
니들유니트(100)는 배럴(200)에 수용된다. 배럴은 선단배럴(210)과 후단배럴(220), 두개의 부품이 조합되어 하나의 배럴(200)을 형성한다. 선단배럴(210)은 관상체로 선단개구(211)를 통해 니들유니트(100)를 수용한다. 선단개구(211) 주변에는 안내슬롯(212)이 형성되어 있다. 안내슬롯(212)은 니들하우징(110)의 외표면에 돌출한 걸림돌기(112)를 수용하여 니들유니트(100)가 선단배럴(210)내로 삽입되는 경로를 안내한다. 안내슬롯(212)의 말단에는 배럴(200)의 원주방향을 따라 절곡된 걸림슬롯(213)이 연장되어 있다. 걸림돌기(112)가 안내슬롯(212)을 통해 안내되어 걸림슬롯(213) 내부로 수용될 경우, 배럴(200)과 니들유니트(100)는 서로 결합된 상태가 된다. 선단배럴(210)의 후단은 후단결합부(214)에 의해 개방되어 있다. 후단결합부(214)를 통해 선단배럴(210)은 후단배럴(220)를 수용하여 서로 결합될 수 있다.The needle unit 100 is accommodated in the barrel 200. As for the barrel, the front barrel 210 and the rear barrel 220 are combined to form one barrel 200. The tip barrel 210 is a tubular body and accommodates the needle unit 100 through the tip opening 211. A guide slot 212 is formed around the tip opening 211 . The guide slot 212 accommodates the protrusion 112 protruding from the outer surface of the needle housing 110 to guide the path through which the needle unit 100 is inserted into the tip barrel 210. An engaging slot 213 bent along the circumferential direction of the barrel 200 extends at an end of the guide slot 212 . When the locking protrusion 112 is guided through the guide slot 212 and received into the locking slot 213, the barrel 200 and the needle unit 100 are coupled to each other. The rear end of the front end barrel 210 is opened by the rear end coupling part 214. Through the rear end coupling part 214, the front end barrel 210 can be coupled to each other by receiving the rear end barrel 220.
후단배럴(220)은 공이부재(230)와 구동부(240)를 수용하는 관상체이다. 후단배럴(220)의 선단부에는 배럴연결구(221)가 형성되어 있어 후술할 공이부재(230)가 배럴(200) 내부를 이동할 수 있도록 한다. 배럴연결구(221) 주변에는 선단결합부(222)가 형성되어 선단배럴(210)의 후단결합부(214)와 결합된다. The rear barrel 220 is a tubular body accommodating the ball member 230 and the driving unit 240 . A barrel connector 221 is formed at the front end of the rear barrel 220 so that a ball member 230 to be described later can move inside the barrel 200. A front coupling portion 222 is formed around the barrel connector 221 and coupled to the rear coupling portion 214 of the front barrel 210.
후단배럴(220)의 후단은 차폐되어 있으며 내부에 공이부재(230)와 구동부(240)가 수용된다. 공이부재(230)는 구동부(240)로 부터 힘을 전달받아 니들캐리어(120)를 타격하는 부재이다.The rear end of the rear end barrel 220 is shielded, and the ball member 230 and the drive unit 240 are accommodated therein. The ball member 230 is a member that hits the needle carrier 120 by receiving force from the driving unit 240 .
구동부(240)는 공이부재(230)를 직접적으로 타격하는 장치이다. 구동부(240)는 공이부재(230)를 한 번 또는 여러 번 연속적으로 타격할 수 있다. 구동부(240)는 전동액추에이터로 구성되는 것이 바람직하나, 기계적인 구동장치 또는 액추에이터와 다른 전동장치로 구성될 수 있다.The driving unit 240 is a device that directly strikes the ball member 230 . The driving unit 240 may hit the ball member 230 once or several times continuously. The driving unit 240 is preferably composed of an electric actuator, but may be composed of a mechanical driving device or an actuator and other transmission devices.
배럴(200)의 일단에는 핸들(300)이 구성된다. 핸들(300)을 통해 사용자는 배럴(200)을 직접 파지하여 수동으로 사용하는 것 보다 수월하게 채혈작업을 수행할 수 있다. 핸들(300)에는 구동트리거(310)가 존재한다. 구동트리거(310)는 구동부(240)의 작동을 제어하는 스위치로 구동트리거(310)를 누르게 되면 구동부(240)가 공이부재(230)를 타격한다. A handle 300 is formed at one end of the barrel 200 . Through the handle 300, the user can perform blood sampling more easily than manually holding the barrel 200. A drive trigger 310 is present on the handle 300 . The driving trigger 310 is a switch that controls the operation of the driving unit 240, and when the driving trigger 310 is pressed, the driving unit 240 strikes the ball member 230.
도 7의 (a) 내지 (c)는 본 발명에 따른 니들유니트(100)의 조립과정을 나타낸 도면이다.Figure 7 (a) to (c) is a view showing the assembly process of the needle unit 100 according to the present invention.
도 7의 (a)는 니들유니트(100)를 구성하기 위해 니들하우징(110)과 니들캐리어(120), 복귀스프링(130), 범퍼스프링(140)이 준비된 모습을 나타내고 있다. 먼저 니들하우징(110)의 돌출가이드(113)에 복귀스프링(130)을 삽입하고, 니들캐리어(120)의 선단부에 범퍼스프링(140)을 삽입한다. 7 (a) shows a state in which the needle housing 110, the needle carrier 120, the return spring 130, and the bumper spring 140 are prepared to configure the needle unit 100. First, the return spring 130 is inserted into the protrusion guide 113 of the needle housing 110, and the bumper spring 140 is inserted into the front end of the needle carrier 120.
그 다음, 니들하우징(110)의 후단개구를 통해 니들캐리어(120)의 선단부를 삽입한다. 니들캐리어(120)의 후단에 형성된 날개부(123)는 삽입과정에서 탄성적으로 휘어질 수 있도록 탄성절개부(미도시)를 가진다. 니들캐리어(120)가 니들하우징(110)내부로 삽입됨에 따라 날개부(123)에 연장 형성된 슬라이딩부(124)가 가이드레일(111)에 삽입되도록 조립한다. 슬라이딩부(124)와 가이드레일(111)이 조합을 형성하는 슬라이딩가이드부는 홈 형태의 가이드레일(111)과 돌출된 슬라이딩부(124)의 삽입으로 구성되는 것이 바람직하다. 하지만, 가이드레일(111)이 니들하우징(110)의 축선방향 내벽면으로부터 돌출된 형태가 되고 슬라이딩부(124)가 가이드레일(111)의 돌출부를 수용하는 홈 형태가 되거나, 가이드레일(111)이 홈 형태와 돌출 형태를 조합하고 슬라이딩부(124)가 이에 대응하는 돌출 형태와 홈 형태를 조합하는 등 다양한 형태로 구성될 수 있다.Then, the front end of the needle carrier 120 is inserted through the rear end opening of the needle housing 110 . The wing portion 123 formed at the rear end of the needle carrier 120 has an elastic cutout (not shown) to be elastically bent during the insertion process. As the needle carrier 120 is inserted into the needle housing 110, the sliding portion 124 extending from the wing portion 123 is assembled to be inserted into the guide rail 111. The sliding guide portion in which the sliding portion 124 and the guide rail 111 form a combination is preferably configured by inserting the groove-shaped guide rail 111 and the protruding sliding portion 124. However, the guide rail 111 protrudes from the inner wall surface in the axial direction of the needle housing 110 and the sliding part 124 has a groove form for accommodating the protrusion of the guide rail 111, or the guide rail 111 It may be configured in various forms, such as combining the groove shape and the protruding shape, and the sliding part 124 combining the protruding shape and the groove shape corresponding thereto.
도 7의 (b)는 도 7의 (a)의 조립과정을 통해 조립된 니들하우징(110)의 단면을 나타내고 있다. 삽입된 니들캐리어(120)는 복귀스프링(130)의 탄성력과 슬라이딩부(124)의 후부가 가이드레일(111)의 끝단에 걸림으로 인해 발생하는 저항력에 의해 니들하우징(110)내에서 삽입위치를 유지하고 있다.Figure 7 (b) shows a cross-section of the needle housing 110 assembled through the assembly process of Figure 7 (a). The inserted needle carrier 120 is inserted into the needle housing 110 by the elastic force of the return spring 130 and the resistance generated by the rear end of the sliding part 124 being caught on the end of the guide rail 111. are maintaining
도 7의 (c)는 니들유니트(100)가 배럴(200)의 선단배럴(210)에 조립되는 모습을 나타내고 있다. 니들하우징(110)의 후단에 형성된 걸림돌기(112)를 선단배럴(210)에 형성된 안내슬롯(212)으로 삽입한다. 걸림돌기(112)를 안내슬롯(212)의 말단으로 완전히 밀어 니들하우징(110)을 선단배럴(210)에 삽입한다. 7(c) shows a state in which the needle unit 100 is assembled to the front end barrel 210 of the barrel 200. The locking protrusion 112 formed at the rear end of the needle housing 110 is inserted into the guide slot 212 formed in the tip barrel 210. Insert the needle housing 110 into the tip barrel 210 by completely pushing the protrusion 112 toward the end of the guide slot 212 .
계속해서, 걸림돌기(112)가 안내슬롯(212)으로부터 연장 형성된 걸림슬롯(213)을 따라 들어가도록 니들하우징(110)을 회전시킨다. 걸림슬롯(213)의 끝부분에는 걸림턱(미도시)이 마련되어 있어 걸림슬롯(213)내로 삽입된 걸림돌기(112)가 쉽게 이탈하지 않도록 한다.Subsequently, the needle housing 110 is rotated so that the locking protrusion 112 enters along the locking slot 213 extending from the guide slot 212 . A locking protrusion (not shown) is provided at the end of the locking slot 213 to prevent the locking protrusion 112 inserted into the locking slot 213 from being easily separated.
도 8의 (a) 내지 (d)는 본 발명에 따른 채혈기(10)의 사용과 니들유니트(100)의 구동을 나타낸 도면이다.8(a) to (d) are diagrams showing the use of the lancing device 10 and the operation of the needle unit 100 according to the present invention.
도 8의 (a)는 조립된 니들유니트(100)에서 보호연장부(125)를 니들캐리어(120)에서 분리시키는 모습을 나타낸 도면이다. 사용자는 보호연장부(125)를 축선방향을 기준으로 회전시키면서 채혈기(10)의 길이방향으로 힘을 가해 니들캐리어(120)로부터 이탈시킨다. 보호연장부(125)가 분리됨에 따라 채혈용 니들(121)이 외부로 노출된다.8(a) is a view showing a state in which the protective extension 125 is separated from the needle carrier 120 in the assembled needle unit 100. The user applies force in the longitudinal direction of the lancing device 10 while rotating the protective extension 125 in the axial direction to separate it from the needle carrier 120 . As the protection extension 125 is separated, the blood sampling needle 121 is exposed to the outside.
도 8의 (b)는 공이부재(230)가 니들캐리어(120)를 타격함에 따라 전진된 니들캐리어(120)의 모습을 나타낸 도면이다. 핸들(300)에 마련된 구동트리거(310)를 작동시키면 구동부(240)가 동작하여 공이부재(230)를 타격한다. 그러면, 공이부재(230)는 니들캐리어(120)의 후단을 타격하게 되고 니들캐리어(120)가 발사된다. 이때, 전진되는 니들캐리어(120)의 선단은 니들하우징(110)의 외부를 벗어나지 않는 선 까지 전방으로 이동 가능하다.8(b) is a view showing the state of the needle carrier 120 advanced as the ball member 230 strikes the needle carrier 120. When the driving trigger 310 provided on the handle 300 is operated, the driving unit 240 operates to hit the ball member 230. Then, the ball member 230 strikes the rear end of the needle carrier 120 and the needle carrier 120 is launched. At this time, the forward end of the needle carrier 120 can be moved forward to a line that does not deviate from the outside of the needle housing 110.
이 때, 니들하우징(110)에 형성된 가이드레일(111)과 가이드레일(111)에 삽입된 슬라이딩부(124) 즉 슬라이딩가이드부와 니들하우징(110)의 선단에 마련된 돌출가이드(113)에 의해 니들캐리어(120)는 요동이 최소화 된 직선운동이 가능하다. 돌출가이드(113)는 니들캐리어(120)가 조립된 시점부터 계속하여 니들캐리어(120)와 부분적으로 접촉되어 있는것이 바람직하다. 조립된 니들캐리어(120)가 전진함에 따라 날개부(123)에 의해 복귀스프링(130)이 압축된다.At this time, by the guide rail 111 formed in the needle housing 110 and the sliding part 124 inserted into the guide rail 111, that is, the sliding guide part and the protruding guide 113 provided at the front end of the needle housing 110 The needle carrier 120 is capable of linear motion with minimized fluctuations. It is preferable that the protruding guide 113 continues to be in partial contact with the needle carrier 120 from the time the needle carrier 120 is assembled. As the assembled needle carrier 120 moves forward, the return spring 130 is compressed by the wing 123 .
도 8의 (c)는 도 8의 (b) 과정을 통해 채혈용 니들(121)이 피부에 삽입된 모습을 나타낸 도면이다. 니들유니트(100)의 선단에 노출된 채혈용 니들(121)은 니들캐리어(120)의 이동에 따라 채혈대상자의 표피에 근접하게 된다. 이 때, 채혈대상자의 표피에는 범퍼스프링(140)이 먼저 닿게 된다. 범퍼스프링(140)이 채혈대상자의 표피를 가압하며 압축되는 동안 접촉부 주변의 촉각을 교란시키고 통각을 차단하게 되므로 사용자의 통증을 줄여줄 수 있다. 범퍼스프링(140)이 충분히 압축되면서 채혈용 니들(121)이 채혈대상자의 표피로 삽입된다. FIG. 8(c) is a view showing a state in which the blood collection needle 121 is inserted into the skin through the process of FIG. 8(b). The blood collection needle 121 exposed at the front end of the needle unit 100 comes close to the epidermis of the blood collection subject according to the movement of the needle carrier 120 . At this time, the bumper spring 140 first comes into contact with the epidermis of the blood sampling subject. While the bumper spring 140 pressurizes and compresses the epidermis of the blood sample, the tactile sensation around the contact portion is disturbed and the pain sensation is blocked, so the user's pain can be reduced. As the bumper spring 140 is sufficiently compressed, the blood collection needle 121 is inserted into the epidermis of the blood collection subject.
도 8의 (d)는 채혈 이후 복귀하는 니들캐리어(120)의 모습을 나타낸 도면이다. 삽입된 채혈용 니들(121)은 압축된 범퍼스프링(140)과 복귀스프링(130)의 탄성력에 의해 후방으로 추진되며 빠르게 채혈대상자의 표피로부터 빠져나오게 된다. 니들캐리어(120)는 후방으로 복귀할 때에도 돌출가이드(113)와 슬라이딩가이드부에 의해 요동하지 않고 직선운동 하게 되며, 사용자의 통증을 일으키거나 상처를 확장시키는 일 없이 원 위치로 복귀하게 된다. 이상의 과정은 단속적 또는 연속적으로 일어날 수 있다.8(d) is a view showing the state of the needle carrier 120 returning after blood sampling. The inserted blood sampling needle 121 is propelled backward by the elastic force of the compressed bumper spring 140 and the return spring 130, and quickly comes out of the blood collection subject's epidermis. Even when returning to the rear, the needle carrier 120 moves linearly without being shaken by the protruding guide 113 and the sliding guide unit, and returns to its original position without causing pain to the user or expanding wounds. The above process may occur intermittently or continuously.
채혈과정을 종료한 이후, 사용된 니들유니트(100)는 배럴(200)로부터 분리하여 폐기하고 새로운 니들유니트(100)를 배럴(200)에 조립하여 사용함으로 써 위생적으로 채혈기(10)를 활용할 수 있다. After the blood collection process is finished, the used needle unit 100 is separated from the barrel 200 and discarded, and a new needle unit 100 is assembled and used in the barrel 200, so that the blood sampling device 10 can be used hygienically. there is.
이상의 내용에 따라, 본 발명에 따른 분리형 니들유니트(100)는 내부에 삽입되는 니들캐리어(120)가 이동할 때 가이드하는 슬라이딩가이드부를 가져 니들캐리어(120)의 전후방향 이동시 요동을 줄이고 사용자의 통증을 최소화 한다.According to the above, the detachable needle unit 100 according to the present invention has a sliding guide portion that guides the needle carrier 120 inserted therein as it moves, reducing vibration when the needle carrier 120 moves in the forward and backward directions and reducing pain for the user. Minimize.
그리고, 슬라이딩가이드부는 니들하우징(110)에 형성된 가이드레일(111)과 니들캐리어(120)에 형성되는 슬라이딩부(124)를 가질 수 있다. 이러한 경우 니들캐리어(120)가 슬라이딩부(124)와 니들하우징(110) 내벽면에 형성된 가이드레일(111)에 의해 직선운동하여 니들캐리어(120)의 요동을 저감할 수 있다. Also, the sliding guide portion may have a guide rail 111 formed on the needle housing 110 and a sliding portion 124 formed on the needle carrier 120 . In this case, the needle carrier 120 may be linearly moved by the sliding part 124 and the guide rail 111 formed on the inner wall surface of the needle housing 110, thereby reducing the shaking of the needle carrier 120.
또한, 본 발명에 따른 채혈기(10)는 상기 특징을 가지는 니들유니트(100)와, 선단개구(211)를 가진 배럴(200), 배럴(200) 내에 수용되어 니들유니트(100) 내의 니들캐리어(120)를 선단방향으로 타격할 수 있는 공이부재(230)와 구동부(240)를 가져 사용자가 편리하게 연속적인 채혈작업을 수행할 수 있다.In addition, the lancing device 10 according to the present invention includes a needle unit 100 having the above characteristics, a barrel 200 having a tip opening 211, and a needle carrier in the needle unit 100 accommodated in the barrel 200 ( 120), the ball member 230 and the drive unit 240 are provided so that the user can conveniently perform continuous blood sampling.

Claims (9)

  1. 채혈기용 분리형 니들유니트에 있어서,In the detachable needle unit for lancing machine,
    선단에 니들개구를 갖는 관상의 니들하우징,A tubular needle housing having a needle opening at the tip,
    상기 니들하우징 내에 축선방향을 따라 슬라이딩 이동 가능하게 수용되는 캐리어본체와, 상기 캐리어본체의 선단에 돌출된 니들을 갖는 니들캐리어,A carrier body slidably accommodated in the needle housing along an axial direction, and a needle carrier having a needle protruding from the front end of the carrier body,
    상기 니들하우징과 상기 니들캐리어 사이에서 상기 니들캐리어의 축선방향 슬라이딩 이동을 안내하는 슬라이딩가이드부를 가지는 채혈기용 분리형 니들유니트. A detachable needle unit for a lancing device having a sliding guide unit for guiding an axial sliding movement of the needle carrier between the needle housing and the needle carrier.
  2. 제 1항에 있어서,According to claim 1,
    상기 슬라이딩가이드부는 상기 니들하우징의 내벽면에 형성된 가이드레일과 상기 니들캐리어에 형성되어 상기 가이드레일을 따라 슬라이딩되는 슬라이딩부를 갖는 것을 특징으로 하는 채혈기용 분리형 니들유니트.The sliding guide unit has a guide rail formed on an inner wall surface of the needle housing and a sliding unit formed on the needle carrier and sliding along the guide rail.
  3. 제 2항에 있어서,According to claim 2,
    상기 가이드레일은 상기 내벽면으로부터 외향 절개 또는 내향 돌출되어 형성되며, 상기 슬라이딩부는 상기 가이드레일에 수용되거나 또는 가이드레일을 수용하여 슬라이딩하는 것을 특징으로 하는 채혈기용 분리형 니들유니트.The guide rail is formed by cutting outward or protruding inward from the inner wall surface, and the sliding part is accommodated in the guide rail or slides by receiving the guide rail.
  4. 제 2항에 있어서,According to claim 2,
    상기 니들캐리어는 상기 캐리어본체로부터 측방으로 확장된 날개부를 가지며, 상기 슬라이딩부는 상기 날개부에 형성되어 있는 것을 특징으로 하는 채혈기용 분리형 니들유니트.The needle carrier has a wing portion extending laterally from the carrier body, and the sliding portion is formed on the wing portion.
  5. 제 1항에 있어서,According to claim 1,
    상기 니들캐리어와 상기 니들하우징 사이에 개재되어 상기 니들캐리어의 상기 날개부에 의해 압축되었다가 탄성력에 의해 복귀하도록 하는 복귀스프링을 가지는 것을 특징으로 하는 채혈기용 분리형 니들유니트.The separate type needle unit for the lancing machine, characterized in that it has a return spring interposed between the needle carrier and the needle housing, compressed by the wing portion of the needle carrier, and then returned by an elastic force.
  6. 제 1항에 있어서, According to claim 1,
    상기 니들캐리어의 선단부에 개재되어 상기 니들의 돌출길이보다 길게 연장된 범퍼스프링을 가진 것을 특징으로 하는 채혈기용 분리형 니들유니트.The separate needle unit for the lancing device, characterized in that it has a bumper spring that is interposed at the front end of the needle carrier and extends longer than the protruding length of the needle.
  7. 채혈기에 있어서,In the blood sampling machine,
    제 1항 내지 제 6항 중 어느 한 항에 따른 니들유니트와,The needle unit according to any one of claims 1 to 6,
    상기 니들유니트가 수용 장착되는 선단개구를 가진 배럴,A barrel having a tip opening in which the needle unit is accommodated,
    상기 배럴 내에 수용되어 상기 니들유니트 내의 상기 니들캐리어를 선단방향으로 타격할 수 있는 공이부재를 갖는 것을 특징으로 하는 채혈기.The lancing device characterized in that it has a ball member accommodated in the barrel and capable of striking the needle carrier in the needle unit in a distal direction.
  8. 제 7항에 있어서,According to claim 7,
    상기 니들하우징은 외표면에 돌출한 걸림돌기를 가지며,The needle housing has a protrusion protruding from the outer surface,
    상기 배럴은 상기 걸림돌기를 축선방향을 안내하는 안내슬롯과 상기 안내슬롯으로부터 원주방향으로 절곡된 걸림슬롯을 가지는 것을 특징으로 하는 채혈기.The lancing device of claim 1, wherein the barrel has a guide slot for guiding the locking protrusion in an axial direction and a locking slot bent in a circumferential direction from the guide slot.
  9. 제 7항에 있어서,According to claim 7,
    상기 공이부재를 타격 구동하는 구동부를 더 갖는 것을 특징으로 하는 채혈기.The lancing device further comprising a driving unit for driving the ball member by striking.
PCT/KR2022/012762 2021-08-27 2022-08-25 Blood-drawing device and needle unit for blood-drawing device WO2023027532A1 (en)

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KR1020210113945A KR20230033118A (en) 2021-08-27 2021-08-27 Blood lancet and niddle unit for blood lancet
KR10-2021-0113945 2021-08-27

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100912202B1 (en) * 2008-07-03 2009-08-14 (주)보성메디텍 One body lancet and no pain type blood collecting device
KR20100092270A (en) * 2009-02-12 2010-08-20 (주)보성메디텍 A cutting device
KR20190083385A (en) * 2018-01-03 2019-07-12 (주) 로아메드 Blood lancet device
KR20190121246A (en) * 2018-04-17 2019-10-25 최민기 Blood lancet
KR20210032258A (en) * 2019-09-16 2021-03-24 최임철 Pressure-Actuated Disposable Painless Lancet With Improved Performance And Construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100912202B1 (en) * 2008-07-03 2009-08-14 (주)보성메디텍 One body lancet and no pain type blood collecting device
KR20100092270A (en) * 2009-02-12 2010-08-20 (주)보성메디텍 A cutting device
KR20190083385A (en) * 2018-01-03 2019-07-12 (주) 로아메드 Blood lancet device
KR20190121246A (en) * 2018-04-17 2019-10-25 최민기 Blood lancet
KR20210032258A (en) * 2019-09-16 2021-03-24 최임철 Pressure-Actuated Disposable Painless Lancet With Improved Performance And Construction

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