WO2015115765A1 - Dispositif à lancette pour prise de sang - Google Patents

Dispositif à lancette pour prise de sang Download PDF

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Publication number
WO2015115765A1
WO2015115765A1 PCT/KR2015/000808 KR2015000808W WO2015115765A1 WO 2015115765 A1 WO2015115765 A1 WO 2015115765A1 KR 2015000808 W KR2015000808 W KR 2015000808W WO 2015115765 A1 WO2015115765 A1 WO 2015115765A1
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WO
WIPO (PCT)
Prior art keywords
lancet
unit
hollow
circumferential surface
support unit
Prior art date
Application number
PCT/KR2015/000808
Other languages
English (en)
Korean (ko)
Inventor
이태중
Original Assignee
주식회사 지앤티케어
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR20140011503A external-priority patent/KR101491812B1/ko
Priority claimed from KR1020140137434A external-priority patent/KR101521235B1/ko
Application filed by 주식회사 지앤티케어 filed Critical 주식회사 지앤티케어
Publication of WO2015115765A1 publication Critical patent/WO2015115765A1/fr

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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
    • A61B5/151—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
    • A61B5/15188—Constructional features of reusable driving devices
    • A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
    • A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the 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
    • A61B5/150007—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
    • A61B5/150175—Adjustment of penetration depth
    • A61B5/150183—Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
    • 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
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the 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
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • 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

Definitions

  • the present invention relates to a blood collection device, and more particularly, a plurality of lancets are formed so that the lancet can be loaded and triggered automatically only by pressing the device at the blood collection position, and formed at regular intervals in an oblique direction to control the blood collection stage.
  • the present invention relates to a blood collector capable of maintaining a uniform blood collection depth by removing clearances by utilizing tension of an elastic member when at least one protrusion is engaged with the coupling groove.
  • a lancet is used when a small amount of blood is collected for blood glucose measurement of a diabetic patient or various blood tests of a patient.
  • the lancet is a device having a small body equipped with a blood collection needle that can penetrate into the patient's skin in the front.
  • the lancet is mounted on a blood collector and loaded and triggered to penetrate into the patient's skin to collect blood.
  • the blood collector is typically a lancet holder equipped with a disposable lancet, an end cap with a lancet and an end cap with a protruding attachment of the needle for skin penetration, and a spring and percussion mechanism providing skin penetration. It is composed.
  • Such a blood collector first separates the end cap from the blood collector, then attaches the lancet to the lancet holder, covers the end cap, and compresses the spring for triggering by using an external loading device to close the capillaries such as fingers It is designed to penetrate the skin by triggering the lancet by pressing the switch.
  • a conventional blood collector must go through a separate loading process in a state where the lancet is mounted therein and press the trigger button to trigger the lancet. Therefore, the conventional blood collection device requires a preparation process in the blood collection process, the method of use is complicated, and since the trigger button must be formed separately, the structure of the device is complicated and there is a problem of many malfunctions.
  • the conventional blood collector is manufactured and sold in a state where the skin penetration depth of the blood collector is uniformly fixed, but since the skin thickness of each person and the part to be collected may vary, the necessity of adjusting the penetration depth has emerged.
  • the blood collection can be maintained at a uniform uniform depth by using the tension of the elastic member to remove the play.
  • a blood collector is required.
  • the present invention has been invented to improve the above problems, the problem to be solved by the present invention is that the lancet is automatically loaded and triggered only by the operation of contacting and pressing the blood collector to the blood collection position, the structure of the overall device is simplified, ease of use It is to provide an increased blood collection device.
  • the problem to be solved by the present invention is always by removing the play by using the tension of the elastic member when at least one projection is engaged with a plurality of coupling grooves formed at regular intervals in an oblique direction to adjust the blood collection step. It is to provide a blood collector that can maintain a uniform blood collection depth.
  • the front case is formed in the front and the hollow is formed in the front, the receiving groove is formed therein and the first locking jaw and the second locking on the inner peripheral surface
  • a lancet driving unit coupled to the body portion coupled to the rear case formed with a jaw protruding, and slidably moved forward and backward in the receiving groove
  • the lancet driving unit including a lancet for blood collection at the front end and the lancet driving unit in the hollow of the front case It is coupled to be slidably movable in the front and rear direction in a state, and includes a lancet adjusting unit for adjusting the blood collection depth of the lancet, the lancet driving unit, the front end is installed adjacent to the rear end of the lancet adjustment, the hollow is formed therein
  • a sliding body having a locking groove formed on the inner surface thereof, and movable in the front and rear directions through the hollow of the sliding body.
  • the lancet support unit and the lancet support unit and the rear of the lancet is installed, the lancet for the blood collection is mounted on the front end portion, the first locking member and the second locking member are inclined toward the inner circumferential surface of the rear case. Both ends of the case are installed to support each other, and include a trigger spring that elastically supports the lancet support unit forwardly with respect to the rear case.
  • the second locking member When the lancet support unit is moved to the rear in the state that is caught in the locking groove, the second locking member is the When the lancet support unit is moved forward by the elastic force of the percussion spring after the locking state of the second locking member is released from the locking groove by being rotated toward the set support unit, the lancet of the lancet is the lancet. It penetrates into the skin surface through the through-hole of the control unit.
  • the hollow inner circumferential surface of the sliding body is formed with at least one extension groove extending in the front and rear direction
  • the lancet support unit protrudes toward the inner circumferential surface of the sliding body to proceed along the at least one extension groove
  • At least one protrusion for guiding the front and rear direction of movement of the lancet support unit is formed.
  • the inner hollow of the sliding body has a first section extending rearward from the front end portion, and a second inner diameter larger than the first section so as to extend rearward from the end of the first section and the support jaw can be formed
  • the lancet driving unit is installed to surround the lancet support unit between the at least one protrusion and the support jaw, and includes a buffer spring for relieving the triggered shock when the lancet support unit is triggered It is characterized by.
  • the receiving groove which is open to the front is formed, the first locking jaw and the second at a position spaced apart from the inner peripheral surface of the receiving groove
  • a locking jaw protruding from the rear case, and inserted into the receiving groove of the rear case is fixed to the fixed body having an inner hollow, and the front exposed portion of the fixed body coupled to the rear case, the entrance is formed in the front
  • a first locking member and the first locking member which are curved in a convex shape protruding toward the main surface, and a locking protrusion which is caught by the first locking jaw is formed at an end thereof to block the extension rod from moving backward of the rear case; It is spaced apart and extends inclined toward the inner circumferential surface of the rear case as it extends toward the front from the extension rod, the end includes a second locking member that is caught in the locking groove of the sliding body, the lancet adjustment portion is pressed to move backward When the sliding body adjacent to the lancet adjustment unit is retracted to press the outer surface of the first locking member, the first locking member is rotated toward the extension rod so that the locking protrusion is separated from the first locking jaw, When the locking state of the first locking member is released, the second locking member is inserted into the locking groove of the sliding body.
  • the caught lancet support unit compresses the trigger spring while retracting together with the sliding body, and during retreat, the second catching member is rotated toward the extension rod by the second catching jaw to be separated from the catching groove.
  • the lancet support unit moves forward by the elastic force of the percussion spring, and the lancet of the lancet penetrates into the skin surface through the through hole of the lancet adjustment unit. .
  • the fixed body includes a first sliding hole in which the hollow extends rearward from the front end and a second sliding hole extending rearward from the end of the first sliding hole and having an inner diameter relatively larger than that of the first sliding hole. It is formed to have, the outer peripheral surface of the sliding body is characterized in that the front portion is formed to correspond to the inner diameter of the first sliding hole, the rear portion is formed to correspond to the inner diameter of the second sliding hole.
  • the hollow inner circumferential surface of the sliding body is formed with at least one extension groove extending in the front and rear direction
  • the lancet support unit protrudes from one side of the extension rod toward the inner circumferential surface of the sliding body the at least one At least one protrusion is formed to guide the forward and backward direction of movement of the extension rod while traveling along the extension groove.
  • the at least one protrusion is formed so that a plurality of protrusions protrude in a radial direction from the extension rod, a plurality of extension grooves are formed in the sliding body to correspond to the plurality of protrusions, respectively, and the inner hollow of the sliding body is And a first section extending rearward from the front end and a second section extending rearward from the end of the first section and having a larger inner diameter than the first section so that the support jaw can be formed. It is installed to surround the extension rod between the protrusion and the support jaw, characterized in that it further comprises a buffer spring for relieving the trigger shock when the lancet support unit is triggered.
  • the front and the door is formed in the front and the hollow is formed in the inside, the body portion coupled to the rear case formed in the receiving groove therein, It is coupled to the receiving groove so as to be slidably moved forward and backward, is coupled to the lancet driving unit including a lancet for blood collection at the front end and a sliding movement in the front and rear direction in contact with the lancet driving unit in the hollow of the front case, And a lancet adjustment unit for adjusting a blood collection depth of the lancet, wherein the lancet adjustment unit is installed to be movable in the front-rear direction with respect to the front case, and is rotatably in front of the pressing unit and the pressing unit for pressing the lancet driving unit.
  • the lancet adjustment unit characterized in that it is provided between the pressing unit and the control unit, characterized in that it comprises an elastic member for providing an elastic force to engage the at least one projection with the plurality of coupling grooves.
  • At least one guide groove extending in the front-rear direction is formed on one of the inner circumferential surface of the front case and the outer circumferential surface of the pressing part, and the other guides the front and rear movement of the pressing part in correspondence with the at least one guide groove.
  • At least one guide protrusion for forming is characterized in that it is formed.
  • the front case is formed in the front and the hollow is formed in the front, and the receiving groove is formed in the interior and the first locking step and the inner peripheral surface 2
  • the lancet driving unit is coupled to the body portion coupled to the rear case protruding the locking jaw, and slidable in the front and rear direction to the receiving groove
  • the lancet driving unit including a lancet for blood collection in the front end and the lancet driving unit in the hollow of the front case It is coupled to be slidably movable in the front and rear direction in contact with the lancet, and includes a lancet adjusting portion for adjusting the blood collection depth of the lancet, the lancet driving portion, the front end is installed adjacent to the rear end of the lancet adjustment, hollow inside
  • the sliding body is formed and the engaging groove is formed on the inner surface, and moves in the front and rear direction through the hollow of the sliding body
  • Both ends are installed on the rear case so as to support each end, and include a spring for resiliently supporting the lancet support unit forward with respect to the rear case, and the pressure is applied while the first catching member is caught by the first catching jaw.
  • the first locking member is rotated toward the lancet support unit by the sliding body moved rearward to separate from the first locking jaw, and the second locking member is released after the locking state of the first locking member is released.
  • the second locking member is moved by the second locking jaw.
  • the lancet support unit When the lancet support unit is moved forward by the elastic force of the percussion spring after the locking state of the second locking member is released from the locking groove by being rotated toward the lancet support unit, the lancet of the lancet is Penetrates into the skin surface through the through-hole of the lancet adjustment portion, the lancet adjustment portion is installed to be movable in the front-rear direction with respect to the front case, the pressing portion for pressing the lancet driving portion and the front of the pressing portion rotatably Is coupled, the front surface formed with a through-hole through which the lancet penetrates the lancet includes a control unit exposed to the front of the front case through the entrance, and any one of the inner peripheral surface of the pressing portion and the outer peripheral surface of the control portion in a diagonal direction A plurality of coupling grooves are formed at intervals, the other one of the plurality of grain At least one protrusion is formed in a shape corresponding to the groove, and the adjustment unit moves in the front-rear direction
  • the hollow inner circumferential surface of the sliding body is formed with at least one extension groove extending in the front and rear direction
  • the lancet support unit protrudes toward the inner circumferential surface of the sliding body to proceed along the at least one extension groove
  • At least one protrusion for guiding the front and rear direction of movement of the lancet support unit is formed.
  • the inner hollow of the sliding body has a first section extending rearward from the front end portion, and a second inner diameter larger than the first section so as to extend rearward from the end of the first section and the support jaw can be formed
  • the lancet driving unit is installed to surround the lancet support unit between the at least one protrusion and the support jaw, and includes a buffer spring for relieving the triggered shock when the lancet support unit is triggered It is characterized by.
  • the lancet adjustment unit characterized in that it is provided between the pressing unit and the control unit, characterized in that it comprises an elastic member for providing an elastic force to engage the at least one projection with the plurality of coupling grooves.
  • At least one guide groove extending in the front-rear direction is formed on one of the inner circumferential surface of the front case and the outer circumferential surface of the pressing part, and the other guides the front and rear movement of the pressing part in correspondence with the at least one guide groove.
  • At least one guide protrusion for forming is characterized in that it is formed.
  • the lancet for blood collection is automatically loaded and debrised by a simple operation of pushing and pressing the blood collector to the blood collection position of the patient, thereby increasing the user's ease of use, and loading the lancet. Malfunctions can be prevented from occurring during the operation of the trigger.
  • the manufacturing cost of the device can be lowered as the structure is simplified.
  • the blood collector when the at least one protrusion is engaged with a plurality of coupling grooves formed at regular intervals in an oblique direction to adjust the blood collection step by utilizing the tension of the elastic member And by removing the play that may occur in the assembly can maintain a constant blood collection depth at all times.
  • the blood collector by adjusting the depth of penetration of the blood collection needle by rotating the control unit, infants and people with thin skin can reduce the pain by reducing the penetration depth of blood collection needles for people with thick skin
  • the needle can be adjusted to penetrate deeply.
  • the blood collector when separating the existing lancet and assembling a new lancet, it is possible to easily replace the lancet by blocking the front and rear movement of the lancet support unit is mounted.
  • FIG. 1 is a perspective view showing the structure of a blood collector according to an embodiment of the present invention.
  • FIG. 2 is a partial cutaway perspective view schematically illustrating an internal structure of the blood collector of FIG. 1.
  • FIG. 3 is an exploded perspective view showing the structure of the blood collector of FIG.
  • Figure 4 is a longitudinal cross-sectional view showing a state in which the blood collector of Figure 1 assembled.
  • Figure 5 is an enlarged perspective view of the lancet support unit of the blood collector of Figure 1;
  • Figure 6 is a perspective view showing the structure of the lancet adjusting unit in the blood collection device of Figure 1;
  • FIG. 7 is a cross-sectional view showing a state immediately before the lancet is loaded and triggered in the blood collection device of FIG. 1.
  • FIG. 8 is a perspective view illustrating a state in which the front case is separated from the blood collector of FIG. 1 and coupled to the rear case.
  • FIG. 9 is a view showing a state when the control unit is rotated to move forward with respect to the pressing unit in the blood collector of FIG.
  • FIG. 10 is a view showing a state when the control unit is rotated to move backward with respect to the pressing unit in the blood collector of FIG.
  • FIG. 1 is a perspective view showing the structure of a blood collector according to an embodiment of the present invention
  • Figure 2 is a partially cutaway perspective view schematically showing the internal structure of the blood collector of Figure 1
  • FIG. 5 is an enlarged perspective view of the lancet support unit of the blood collector of FIG.
  • the blood collector 1 may be configured to include a body portion 100, the lancet driving unit 200, the lancet adjusting unit 300.
  • Body portion 100 may be configured to include a front case 110, a rear case 120 and a fixed body (130).
  • the front case 110 is a hollow body having an opening 111 formed at the front side thereof so that the control unit 320 of the lancet adjusting unit 300 to be described later is accessible at the front end thereof, and having a hollow 112 penetrated in the front-rear direction. Can be.
  • the rear case 120 is coupled to the front case 110, the receiving groove 121 inward from the front end so that the fixed body 130, the sliding body 210 and the lancet support unit 220 to be described later is accommodated This can be formed.
  • the first engaging jaw 122 and the second engaging jaw 123 protruding inwardly may be formed on the inner circumferential surface of the rear end of the rear case 120.
  • the fixed body 130 is a cylindrical member whose rear end is inserted into the receiving groove 121 of the rear case 120 and is fixed.
  • the fixed body 130 is formed so that its outer diameter corresponds to the inner diameter of the rear case 120. It can be fitted into the receiving groove 121.
  • the fixed body 130 may have a hollow penetrated in the front and rear directions so that the sliding body 210 to be described later may be coupled to be slidably moved in the front and rear directions.
  • the hollow of the fixed body 130 may include a first sliding hole 131 extending rearward from the front end and a second sliding hole 132 extending rearward from the rear end of the first sliding hole 131. . In this case, the first sliding hole 131 may have a smaller inner diameter than the second sliding hole 132.
  • the front portion of the fixed body 130 may be inserted into the hollow 112 of the front case 110, corresponding to the inner diameter of the hollow 112 of the front case 110 so that the front case 110 can be fixed.
  • the protruding ring 133 may protrude from the outer circumferential surface. 2 to 4 illustrate an example in which the fixed body 130 is fitted to the rear case 120, but the fixed body 130 and the rear case 120 may be integrally formed.
  • the lancet driving unit 200 is coupled to the receiving groove 121 of the rear case 120 so as to be slidably moved forward and backward, and may include a lancet 10 for blood collection at the front end.
  • the lancet driving unit 200 may include a sliding body 210, a lancet support unit 220, a percussion spring 230, and a buffer spring 240.
  • the sliding body 210 may be installed adjacent to the front end portion of the sliding body 210 to be contacted with the rear end of the pressing unit 310 to be described later.
  • the sliding body 210 may be installed to be slidably moved forward and backward in the hollow of the fixed body 130. Sliding body 210 may be inserted into the installation from the rear of the fixed body 130 to the front.
  • the outer diameter of the front portion of the sliding body 210 may correspond to the first sliding hole 131, and the outer diameter of the rear portion may correspond to the second sliding hole 132. Therefore, since the rear part corresponding to the second sliding hole 132 cannot pass through the first sliding hole 131, the sliding body 210 does not proceed through the front of the fixed body 130. can not do it.
  • the sliding body 210 may be formed inside the hollow penetrated in the front and rear direction so that the lancet support unit 220 to be described later to move back and forth.
  • the inner hollow of the sliding body 210 includes a first section 211 extending a predetermined length rearward from the front end portion, and a second section 212 extending backward from the rear end of the first section 211.
  • the first section 211 has a smaller inner diameter than the second section 212, and the boundary between the first section 211 and the second section 212 is supported by the support jaw 213 due to the difference in the inner diameter.
  • the support jaw 213 may be supported by the front end of the buffer spring 240 to be described later.
  • the sliding body 210 may be formed such that at least one extension groove 214 extends along the front-rear direction at intervals of 90 degrees on the inner circumferential surface of the second section 212.
  • the at least one extension groove 214 may be formed to correspond to each of the at least one protrusion 223 of the lancet support unit 220 to be described later, at least one protrusion 223 may be guided.
  • the locking groove 216 to which the second locking member 225 of the lancet support unit 220 is coupled may be formed.
  • the unlocking part 215 has a groove extending further in the front-rear direction by extending more outward than the at least one extension groove 214, and the first locking member 224 described later is caught by the first locking jaw 122.
  • the sliding body 210 retreats backward so that the state in which it is released may be formed to press the first locking member 224 to rotate toward the extension rod 222 which will be described later.
  • the lancet support unit 220 may be installed to be movable in the front-rear direction through the hollow of the sliding body 210.
  • the lancet support unit 220 includes a lancet support member 221 in which a lancet receiving groove is formed to accommodate the lancet 10, and a lancet support member 221 mounted with a lancet 10 for blood collection at a front end portion thereof, and from the lancet support member 221.
  • An extension rod 222 extending rearward, at least one protrusion 223 spaced apart from the lancet support member 221 by a predetermined distance and protruding toward an inner circumferential surface of the sliding body from one side of the extension rod 222; Installed at the rear of the first locking member 224 extending from one side of the at least one protrusion 223, the second locking member 225 formed on the extension rod 222, and the extension rod 222. And a spring support protrusion 226 protruding outward from the extension rod 222 so that the front end of the triggering spring 230 can be supported.
  • At least one protrusion 223 formed to protrude in a radial direction from the extension rod 222 is installed to be movable in the front-rear direction while traveling along the at least one extension groove 214, and the extension of the extension rod 222 It may be provided to guide the forward and backward direction.
  • four protrusions 223 are formed to be spaced apart at intervals of 90 degrees, this is illustrative, and the structure, shape, etc. of the at least one extension groove 214 and the at least one protrusion 223. Can be changed by any person skilled in the art.
  • the shock absorbing spring 240 is installed to surround the extension rod 222 in the section between the at least one protrusion 223 and the support jaw 213, and is provided to relieve the shock when the lancet support unit 220 is triggered. Can be.
  • the shock absorbing spring 240 is mounted on the lancet support unit 220 such that the front in which the lancet support member 221 is formed passes through the lancet support unit 220 before the lancet support unit 220 is inserted into the sliding body 210.
  • the buffer spring 240 has a rear end is supported on at least one protrusion 223, the front end may be supported on the support jaw 213 of the sliding body 210. have.
  • the first locking member 224 may be formed to extend rearward from the protrusion 223 on one side of the four protrusions 223.
  • the first locking member 224 is formed to be inclined toward the inner circumferential surface of the rear case 120 as it extends toward the rear, but the outer circumferential surface is formed to be curved toward the rear from the front end to protrude convexly toward the inner circumferential surface of the rear case 120. In the form of curved lines.
  • the first locking member 224 may be elastically deformed so that the rear end portion of the first locking member 224 may be rotated toward the extension rod 222 with respect to the front end portion connected to the at least one protrusion 223 when pressure is applied thereto.
  • the first catching member 224 may have a catching protrusion 224a formed at a rear end portion thereof to be caught by the first catching jaw 122 of the rear case 120. Therefore, when the user assembles the new lancet 10 to the lancet support unit 220 to replace the lancet 10, the locking projection 224a is caught by the first locking jaw 122, so the lancet support unit 220 during assembly ) May be blocked from moving backward. In addition, when the first locking member 224 is rotated toward the extension rod 222, it may be formed so that the locking state can be released from the first locking jaw (122).
  • the second catching member 225 is spaced apart from the first catching member 224 and faces forward from the spring supporting protrusion 226 formed at the rear of the at least one protrusion 223 toward the at least one protrusion 223. It may be extended.
  • the second locking member 225 may be inclined toward the inner circumferential surface of the rear case 120 as it extends toward the front from the extension rod 222.
  • the second locking member 225 may be elastically deformed so that the front end portion can be rotated toward the extension rod 222 around the rear end portion that is connected to the spring support protrusion 226 when pressure is applied.
  • the front end of the second locking member 225 may be caught in the locking groove 216 of the sliding body 210.
  • the lancet support unit 220 may also be connected to move backward.
  • the lancet support unit 220 may be blocked from moving forward.
  • the trigger spring 230 is introduced into the receiving groove 121 of the rear case 120 so that the rear end is supported by the rear case 120 and the front end is supported by the spring support protrusion 226 of the lancet support unit 220. It is installed, the lancet support unit 220 may be elastically supported to be triggered forward with respect to the rear case 120.
  • the extension rod 222 extends a predetermined length to the rear of the spring support protrusion 226 to further extend a predetermined length inward of the trigger spring 230 to prevent the trigger spring 230 from being separated from the lancet support unit 220. It can be formed to.
  • Figure 6 is a perspective view showing the structure of the lancet adjusting unit in the blood collection device of FIG.
  • the lancet adjusting unit 300 may be coupled to the hollow 112 of the front case 110 to be slidably moved in the front-rear direction while being in contact with the lancet driving unit 200, and may adjust the blood collection depth of the lancet 10.
  • the lancet adjusting unit 300 may include a pressing unit 310, an adjusting unit 320, and an elastic member 330.
  • the pressing unit 310 may be installed to move in the front-rear direction with respect to the front case 110, and may be provided to press the lancet driving unit 200.
  • the pressing portion 310 may be formed with an insertion groove 313 to be inserted into the elastic member 330 to be described later, the elastic supporting surface 314 therein to support the front end of the elastic member 330 This can be formed.
  • Inner circumferential surface of the front case 110 is formed with at least one guide groove (not shown) extending along the front and rear direction
  • the outer circumferential surface of the pressing unit 310 is at least one guide groove
  • At least one guide protrusion 311 may be formed to guide the front and rear movement of the pressing unit 310 in correspondence with the drawing. Therefore, when the pressing unit 310 moves in the front and rear directions along at least one guide groove (not shown) of the front case 110, the pressing unit 310 and the front case 110 do not rotate relative to each other.
  • At least one guide groove (not shown) is formed on the outer peripheral surface of the pressing unit 310, at least one guide protrusion 311 May be formed on the inner circumferential surface of the front case 110.
  • the adjusting unit 320 is rotatably coupled to the front of the pressing unit 310, the front surface formed with a through hole 321 penetrating so that the blood collection needle of the lancet 10 can penetrate the skin surface is the entrance 111 Through the front case 110 may be exposed to the front, and may be in contact with the blood collection position of the patient.
  • the adjusting unit 320 may be formed with an elastic member engaging projection 323 at the rear end to take the elastic member 330 to be described later.
  • the adjuster 320 has a lancet moving hole 324 formed therein so that the lancet 10 can move back and forth.
  • Inner circumferential surface of the pressing unit 310 is formed with a plurality of coupling grooves 312 at regular intervals in an oblique direction
  • the outer peripheral surface of the control unit 320 is a plurality of coupling grooves 312 and At least one protrusion 322 may be formed in a corresponding shape. Therefore, when the adjusting unit 320 is rotated, the adjusting unit 320 may move in the front-rear direction with respect to the pressing unit 310 while the position where the at least one protrusion 322 is engaged with the plurality of coupling grooves 312 is moved. have.
  • the structure and shape of the lancet adjusting unit 300 shown in FIG. 6 are exemplary, and are not limited thereto, and may be changed by those skilled in the art.
  • a plurality of coupling grooves 312 are formed on the outer circumferential surface of the adjusting unit 320, and the at least one protrusion 322 is the pressing unit 310. It may be formed on the inner peripheral surface of the). Even in this case, when the user rotates the adjuster 320, the position where the at least one protrusion 322 is engaged with the plurality of coupling grooves 312 is moved, and the adjuster 320 is moved back and forth with respect to the pressurizer 310. Can move in the direction.
  • the elastic member 330 may be installed between the pressing unit 310 and the adjusting unit 320, and may provide an elastic force to engage the at least one protrusion 322 with the plurality of coupling grooves 312.
  • the elastic member 330 is inserted into the insertion groove 313 of the pressing portion 310 so that the front end portion is in contact with the elastic support surface 314 of the pressing portion 310 and the rear end portion of the elastic member engaging protrusion 323 of the adjusting portion 320. It may be installed so as to be caught, the control unit 320 is pressed portion 310 while the position where the at least one protrusion 322 is engaged with the plurality of coupling grooves 312 by the rotation of the adjustment unit 320 is moved. It can be elastically compressed or elastically restored as it is moved back and forth with respect to).
  • FIG. 4 and 7 are cross-sectional views illustrating a state before the lancet 10 is loaded and a state immediately before the lancet 10 is loaded and triggered in the blood collection device 1 of FIG. 1, and
  • FIG. 8 is a cross-sectional view of FIG. A perspective view showing a state in which the front case is separated from the blood collector and coupled to the rear case.
  • the lancet adjusting part 300 protrudes forward through the doorway 111 of the front case 100, and the sliding body 210 also has a front surface.
  • the lancet support unit 220 is connected to the sliding body 210 by the second locking member 225 is inserted into the locking groove 216, the first locking member 224, the locking projection 224a is the rear case 120 ) Is caught in the first locking step 122.
  • the user After adjusting the blood collection step, the user is holding the rear case 120 or the front case 110 while pressing the front of the control unit 320 in contact with the patient's skin for blood collection combined with the control unit 320
  • the pressing unit 310 moves rearward with respect to the front case 110 to press the sliding body 210 rearward.
  • the sliding body 210 pressurized by the pressing unit 310 is retracted to the rear with respect to the fixed body 130 fixed to the rear case 120, the sliding body 210 is retracted to the rear while the release portion 215 is in contact with the first locking member 224 to press the first locking member 224 to rotate toward the extension rod 222.
  • the first locking member 224 is rotated by the locking release unit 215, the locking protrusion 224a of the first locking member 224 is separated from the first locking jaw 122 while the lancet support unit 220 is closed. You can retreat backwards.
  • the lancet support unit 220 retreats along with the sliding body 210 while triggering the spring. To compress 230.
  • the lancet support unit 220 As the lancet support unit 220 is retracted along with the sliding member, the outer surface of the second locking member 225 contacts the second locking jaw 123 as shown in FIG. 7. When the lancet support unit 220 is further moved rearward from the position shown in FIG. 7, the second locking member 225 is rotated toward the extension rod 222 by the second locking jaw 123 and is temporarily 2, the locking member 225 may be separated from the locking groove 216. Thus, the lancet support unit 220 may be triggered forward by the elastic force of the triggering spring 230 while being separated from the sliding member 210. The blood collection needle of the lancet 10 may be penetrated into the skin at the blood collection position through the through hole 321 of the control unit 320 by the trigger of the lancet support unit 220. In this case, the shock absorbing spring 240 may act as a shock absorbing shock generated when the lancet support unit 220 is triggered forward by the elastic force of the trigger spring 230.
  • the first locking member 224 After the lancet support unit 220 is triggered, the first locking member 224 returns to the initial position and moves the sliding body 210 forward, and the locking protrusion 224a is caught by the first locking jaw 122. 2 the locking member 225 is inserted into the locking groove 216 to return to the initial position before the trigger.
  • the lancet 10 since the lancet 10 is a disposable, as shown in FIG. 8, the lancet 10 may be replaced while the front case 100 is removed to expose the lancet support member 221 to the outside, and the rear case ( As the 120 extends from the front end to the rear end, the outer diameter becomes tapered so that the outer case may be inserted into the rear end of the rear case 120 while replacing the lancet 10.
  • the operation of the lancet adjusting unit 300 in the blood collector 1 according to the exemplary embodiment of the present invention configured as described above is as follows.
  • FIG. 9 is a view showing a state when the control unit is rotated to move forward with respect to the pressing unit in the blood collector of Figure 1
  • Figure 10 is a view when the control unit is rotated to move backward with respect to the pressing unit in the blood collector of Figure 1 It is a figure which shows a state.
  • the user may use the plurality of coupling grooves ( The adjusting unit 320 may be rotated to engage the at least one protrusion 322 at an inclined position that is relatively higher than a specific position of 312.
  • the at least one protrusion 322 is separated from a specific position of the plurality of coupling grooves 312 and moves to engage the plurality of coupling grooves 312 at a relatively higher inclined position.
  • the adjusting unit 320 Since at least one protrusion 322 is moved to a relatively higher inclined position of the plurality of coupling grooves 312, the adjusting unit 320 is moved forward with respect to the pressing unit 310, so that the exposure length of the lancet 10 is increased. Decreases. Therefore, the length of the blood collection needle of the lancet 10 penetrates into the skin is shortened and the blood collection step is lowered. In this case, the elastic member 330 is in a state where the front end portion is in contact with the elastic support surface 314 of the pressing portion 310 and the rear end portion is caught by the elastic member engaging protrusion 323 of the adjusting portion 320. As it moves, it can be compressed.
  • At least one protrusion 322 is engaged with the plurality of coupling grooves 312.
  • One protrusion 322 may be rotated to engage and move from the position shown in FIG. 9 to the position shown in FIG. 10.
  • the at least one protrusion 322 is separated from the position shown in FIG. 9, and moves to a relatively lower inclined position of the plurality of coupling grooves 312 as shown in FIG. 10.
  • the adjusting unit 320 is moved backward with respect to the pressing unit 310, thereby increasing the exposure length of the lancet 10.
  • the outer circumferential surface of the front case 110 or the outer circumferential surface of the control unit 320 may be displayed numbers so as to easily adjust and check the blood collection step by rotating the control unit 320.
  • the position where the at least one protrusion 322 is engaged with the plurality of coupling grooves 312 by the rotation of the adjusting unit 320 is moved, and the adjusting unit 320 moves in the front-rear direction with respect to the pressing unit 310.
  • the elastic member 330 is installed between the pressing unit 310 and the adjusting unit 320 to remove the play that may occur in processing and assembly, thereby maintaining a uniform blood collection depth at all times.
  • the present invention relates to a blood collector that can be loaded and triggered automatically and only to maintain a constant blood collection depth when adjusting the blood collection stage only by the operation of close and press the blood collection device, diabetic patients using a lancet equipped with a blood collection needle It can be used to collect blood for blood glucose measurement or various blood tests of patients.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
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  • Dermatology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La présente invention concerne un dispositif à lancette pour prise de sang. Selon un mode de réalisation de la présente invention, le dispositif à lancette pour prise de sang comprend : un corps dans lequel un boîtier avant possédant une entrée formée sur son avant et un orifice creux formé sur son intérieur et un boîtier arrière possédant une rainure de réception formée sur son intérieur et possédant un premier pas de verrouillage et un second pas de verrouillage dépassant sur sa surface périphérique interne sont accouplés ; une unité d'entraînement de lancette accouplée à la rainure de réception de façon à pouvoir se déplacer vers l'arrière et vers l'avant en coulissant et comprenant une lancette pour prélever du sang au niveau de son extrémité avant ; et une unité de commande de lancette afin de commander la profondeur de prélèvement de sang de la lancette, accouplée à l'orifice creux du boîtier avant en contact avec l'unité d'entraînement de lancette, de façon à pouvoir se déplacer vers l'arrière et vers l'avant en coulissant.
PCT/KR2015/000808 2014-01-29 2015-01-26 Dispositif à lancette pour prise de sang WO2015115765A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2014-0011503 2014-01-29
KR20140011503A KR101491812B1 (ko) 2014-01-29 2014-01-29 채혈기
KR1020140137434A KR101521235B1 (ko) 2014-10-13 2014-10-13 채혈기
KR10-2014-0137434 2014-10-13

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WO2015115765A1 true WO2015115765A1 (fr) 2015-08-06

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Cited By (8)

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Publication number Priority date Publication date Assignee Title
CN106963395A (zh) * 2017-04-10 2017-07-21 王振民 具有击发感知功能可盲装的下触发安全采血器
CN107049335A (zh) * 2017-03-29 2017-08-18 苏州施莱医疗器械有限公司 新型一次性采血器
CN110013257A (zh) * 2019-05-16 2019-07-16 王振民 四孔式下触发安全采血器
CN110693505A (zh) * 2019-10-16 2020-01-17 陈玟荪 一种临床医学用血浆采集方法及装置
CN111214242A (zh) * 2019-05-12 2020-06-02 天津华鸿科技股份有限公司 采血笔
CN114028223A (zh) * 2021-12-26 2022-02-11 安徽中医药大学 一种无菌包装的针灸针盒以及针灸针进针装置
CN114129821A (zh) * 2020-12-21 2022-03-04 艾诺克医美科技(珠海)有限公司 高精度控制出针长度的多针注射针头
WO2023005749A1 (fr) * 2021-07-27 2023-02-02 天津云帆医疗器械有限公司 Dispositif autopiqueur

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US20060116705A1 (en) * 2004-11-30 2006-06-01 Stat Medical Devices, Inc. Disposable or single-use lancet device and method
KR20070009732A (ko) * 2004-05-07 2007-01-18 벡톤 디킨슨 앤드 컴퍼니 접촉 작동식 랜싯 장치
US20070162065A1 (en) * 2006-01-12 2007-07-12 Mu-Shen Chen Disposable lancet device
KR101208479B1 (ko) * 2012-06-19 2012-12-05 장영주 채혈기

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Publication number Priority date Publication date Assignee Title
KR20070009732A (ko) * 2004-05-07 2007-01-18 벡톤 디킨슨 앤드 컴퍼니 접촉 작동식 랜싯 장치
US20060116705A1 (en) * 2004-11-30 2006-06-01 Stat Medical Devices, Inc. Disposable or single-use lancet device and method
US20070162065A1 (en) * 2006-01-12 2007-07-12 Mu-Shen Chen Disposable lancet device
KR101208479B1 (ko) * 2012-06-19 2012-12-05 장영주 채혈기

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107049335A (zh) * 2017-03-29 2017-08-18 苏州施莱医疗器械有限公司 新型一次性采血器
CN107049335B (zh) * 2017-03-29 2023-08-22 苏州施莱医疗器械有限公司 一次性采血器
CN106963395A (zh) * 2017-04-10 2017-07-21 王振民 具有击发感知功能可盲装的下触发安全采血器
CN111214242A (zh) * 2019-05-12 2020-06-02 天津华鸿科技股份有限公司 采血笔
CN110013257A (zh) * 2019-05-16 2019-07-16 王振民 四孔式下触发安全采血器
CN110693505A (zh) * 2019-10-16 2020-01-17 陈玟荪 一种临床医学用血浆采集方法及装置
CN114129821A (zh) * 2020-12-21 2022-03-04 艾诺克医美科技(珠海)有限公司 高精度控制出针长度的多针注射针头
CN114129821B (zh) * 2020-12-21 2024-03-19 艾诺克医美科技(珠海)有限公司 高精度控制出针长度的多针注射针头
WO2023005749A1 (fr) * 2021-07-27 2023-02-02 天津云帆医疗器械有限公司 Dispositif autopiqueur
CN114028223A (zh) * 2021-12-26 2022-02-11 安徽中医药大学 一种无菌包装的针灸针盒以及针灸针进针装置

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