KR20160003355U - Spring for lancet device - Google Patents

Spring for lancet device Download PDF

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Publication number
KR20160003355U
KR20160003355U KR2020150001766U KR20150001766U KR20160003355U KR 20160003355 U KR20160003355 U KR 20160003355U KR 2020150001766 U KR2020150001766 U KR 2020150001766U KR 20150001766 U KR20150001766 U KR 20150001766U KR 20160003355 U KR20160003355 U KR 20160003355U
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KR
South Korea
Prior art keywords
elastic
lancet
needle
slider
spring
Prior art date
Application number
KR2020150001766U
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Korean (ko)
Inventor
김경우
Original Assignee
유한산업(주)
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Publication date
Application filed by 유한산업(주) filed Critical 유한산업(주)
Priority to KR2020150001766U priority Critical patent/KR20160003355U/en
Publication of KR20160003355U publication Critical patent/KR20160003355U/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/14Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
    • A61B5/1405Devices for taking blood samples
    • A61B5/1411Devices for taking blood samples by percutaneous method, e.g. by lancet
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150053Details 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
    • A61B5/150167Adjustable piercing speed of skin piercing element, e.g. blade, needle, lancet or canula, for example with varying spring force or pneumatic drive
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150274Manufacture or production processes or steps for blood sampling devices
    • A61B5/150282Manufacture or production processes or steps for blood sampling devices for piercing elements, e.g. blade, lancet, canula, needle

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Hematology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Manufacturing & Machinery (AREA)
  • 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 spring for a lancet device, and more particularly, to a spring for a lancet device, comprising: an elastic part having one end coupled to a needle holder through which a lancet needle is inserted and wound in the form of a coil spring; And a needle holder which is extended from the other end of the elastic part and arranged in the longitudinal direction of the elastic part on the side of the elastic part and is slidably coupled inward from the front of the main body, When the latch is released, the needle holder is fired forward due to the elastic action of the elastic part, and the lancet needle is pushed on the patient's skin and then hooked on the slider slidably coupled to the inside so as to come into the inside of the body again so that the elastic part moves forward The lancet needle is fired, the patient's skin is pierced, and the position of the spring is fixed by using the slider, so that the spring can be prevented from moving back and forth, It is possible to recede to the inside of the The units can be prevented.

Description

Spring for lancet device}

The present invention relates to a spring for a lancet device, and more particularly to a spring for a lancet device which is coupled to a slider through which the lancet needle is inserted and which provides an elastic force to the slider.

In general, lancet devices are used in medical facilities to stab the patient's skin and obtain blood samples from the patient. The lancet device is used when only a small amount of blood is needed. When you get a blood sample, it usually stings your finger or other appropriate area of your body with a needle. Given the blood-borne disease, it is important that after the use of the lancet, no one else comes into contact with the lancet. Thus, one side of the lancet device should be designed so that the lancet needle does not accidentally scratch the other person after stabbing the patient's skin.

Reflecting the above, Patent Publication No. 10-2012-0038457 (lancet device in which the lance retracts) comprises a hollow housing forming a cavity and having a proximal end and a distal end; A slider at least partially slidable from an outer position to a pushed position along a longitudinal axis within a cavity of the hollow housing; A needle holder that holds the needle and is translationally movable along its longitudinal axis when rotated from its initial position to its advanced position about the longitudinal axis; A first biasing member disposed within the hollow housing at the distal end and having a biasing force applied to the needle holder toward the proximal end as the slider moves to the pushed position; Wherein the slider is in an outward position when the needle holder is in the initial position and the needle holder is in the forward position when the needle holder is in its initial position, The needle holder extends beyond the proximal end of the hollow housing to the outside of the cavity and when the slider slides from the outer position to the pushed position the needle holder is moved to the advanced position.

In addition, Japanese Laid-Open Patent Application No. 10-2011-0017063 (lancet block and lancet actuator) has a lancet having a needle formed at the bottom of a bar-shaped body and a cam protrusion of a predetermined length formed at a side of the body; The lower part of the upper part and the lower part of the lancet corresponding to the cam protrusion are made of a material which ruptures when the lancet is moved in a relatively downward direction, And a lancet case formed of a thin film of material elastically expanding and contracting, the lower portion being formed of a thin film which is easily ruptured by the needle.

According to the above-mentioned patents, the internal configuration of the lancet device is complicated by using a spring of a general coil type in order to prevent the lancet needle from being exposed to the outside after the lancet needle is fired forward and pierced the skin of the patient, And the assembling is not simple. Therefore, it is difficult to use as a disposable lancet device.

The lancet needle is fired through the shape change of the spring without additional configuration in the lancet device, and the lancet needle is pushed into the lancet device and then exposed back to the outside of the lancet device. And to provide a spring for a lancet device.

In order to accomplish the above object, the present invention provides a spring for a lancet device which is provided inside a main body of a lancet device and moves a lancet needle tip by an elastic action, And an elastic part wound in a coil spring shape; And a needle holder which is extended from the other end of the elastic part and arranged in the longitudinal direction of the elastic part on the side of the elastic part and is slidably coupled inward from the front of the main body, When the latch is released, the needle holder is fired forward due to the elastic action of the elastic part, and the lancet needle is pushed on the patient's skin and then hooked on the slider slidably coupled to the inside so as to come into the inside of the body again so that the elastic part moves forward So as to fix it.

The fixing part may be disposed parallel to the elastic part on the side of the elastic part, and may be formed to a size corresponding to ½ of the length of the elastic part.

The fixing portion may include a first extending portion extending in a tangential direction at the other end of the elastic portion;

A second extension portion bent at the first extension portion and extending a certain length in the direction of one end of the elastic portion; And a third extension portion which is bent in the elastic portion direction or the opposite direction in the second extension portion and hooked on the slider slidingly coupled inward.

The angle formed by the first extending portion and the second extending portion and the angle between the second extending portion and the third extending portion may be 90 占 3 3 占.

According to the present invention having the above-described configuration, the following effects can be achieved.

First, the present invention can prevent the spring from moving back and forth by fixing the position of the spring using the slider after the lancet needle is fired and piercing the patient's skin, and it is possible to retract the lancet needle back to the inside of the main body, It is possible to prevent accidents.

Further, when the spring according to the present invention is used, the configuration inside the lancet device is simplified, the assembly is simple, and the manufacturing cost is low.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view, (b) plan view and (c) side view of a spring for a lancet device according to one embodiment of the present invention;
2 is an exploded view of a lancet device to which a spring for a lancet device according to one embodiment of the present invention is applied.
FIG. 3 is a state diagram illustrating a state in which a lancet device having a spring for a lancet device according to an embodiment of the present invention operates.
FIG. 4 is a plan view and (a) side view of a slider used in a lancet device to which a spring for a lancet device according to an embodiment of the present invention is applied.
5 is a plan view and a side view of a main body used in a lancet device to which a spring for a lancet device according to an embodiment of the present invention is applied.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described below in detail with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various forms.

The present embodiments are provided so that this disclosure of the present invention is complete, and that those skilled in the art will fully understand the scope of the present invention.

And this invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undue interpretation of the present invention.

Like reference numerals refer to like elements throughout the specification and terms used herein are intended to illustrate the embodiments and not limit the invention.

In this specification, the singular forms include plural forms unless the context clearly dictates otherwise, and the constituents and acts referred to as " comprising (or having) " do not exclude the presence or addition of one or more other constituents and actions .

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense that is commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 5, the spring 10 for the lancet device is provided inside the main body 40 of the lancet device to advance and retreat the lancet needle tip 31 by elastic action.

The spring 10 for the lancet device includes an elastic portion 11 and a fixing portion 12 wound in the form of a coil spring.

The elastic portion 11 is coupled to the coupling groove 21 of the needle holder 20 through which the lancet needle 30 is inserted and is wound in the form of a coil spring.

The fixing portion 12 is extended from the other end of the elastic portion 11 and is arranged in the longitudinal direction of the elastic portion 11 on the side of the elastic portion 11 and is slidably engaged inward through the front opening of the main body 40. [ When the needle holder 20 is released from the slider 50 in a state in which the needle holder 20 is moved backward by the slider 50 that is the inner side of the main body 40 by the resilient action of the elastic portion 11 The slider 50 slidably coupled to the inside so that the needle holder 20 is fired forward and the needle tip 31 of the lancet needle 30 pierces the patient's skin and then retracts into the inside of the main body 40, So that the elastic part 11 is fixed so as not to move forward.

1, the fixing part 12 is arranged parallel to the elastic part 11 on the side surface of the elastic part 11, and is formed to be long in a length corresponding to ½ of the length of the elastic part 11.

Specifically, the fixing portion 12 includes a first extending portion 12a, a second extending portion 12b, and a third extending portion 12c.

The first extended portion 12a is formed to have a length corresponding to the diameter of the coil spring extending in the tangential direction at the other end of the elastic portion 11 and constituting the elastic portion 11.

The second extending portion 12b is bent at the first extending portion 12a and extends by about 1/2 of the length of the elastic portion 11 in the direction of one end of the elastic portion 11. [

The third extending portion 12c is hooked on the end portion of the slider 50 that is bent in the direction of the elastic portion 11 or the opposite direction from the second extending portion 12b and slidably coupled to the inside of the main body 40. The needle holder 20 is fired forward by the elastic action and the needle tip 31 of the lancet needle 30 is inserted into the through hole formed in the front surface of the slider 50 57). Since the elastic part 11 is in the released state, the elastic part 11 is not fixed in the main body 40 but is movable forward and backward. The needle tip 31 exposed through the through- The third extended portion 12c is caught by the end of the slider 50 slidably coupled to the inside of the main body 40 and moves forward as shown in FIG. The other end of the elastic portion 11 is brought into close contact with the inner side of the main body 40 and the elastic portion 11 can not move freely forward and backward. 30 are retracted into the interior of the main body 40 and then fixed.

It is preferable that the angle formed by the first extended portion 12a and the second extended portion 12b and the angle formed by the second extended portion 12b and the third extended portion 12c are about 90 占 占.

Hereinafter, the spring 10 for a lancet device according to the present invention will be specifically described with reference to FIGS. 2 to 5.

2 and 5, one side (front portion) of the main body 40 is opened, and the elastic portion 11 and the slider 50 are coupled. The main body 40 includes a housing 41 having a front opening and guide portions 42a to 42d formed along the length of the housing 41 in one direction from the other inner side (rear portion) of the housing 41. The guide portions 42a to 42d are provided at the center of the interior of the housing 41, and two of the guide portions 42a to 42d are disposed on the left and right sides, respectively. A sliding groove H having a predetermined length from the front to the rear is formed between the two guide portions 42a and 42b and a supporting portion 43 is provided from the end where the sliding groove H ends to the rear end. The support portion 43 is formed between the two guide portions 42a and 42b in a wing shape outwardly of the guide portions 42a and 42b and extends to the inner side surface of the housing 41. [ An inclined portion 43a inclined at a predetermined angle is formed in front of the support portion 43. [

Sliding grooves H are also formed between the other two guide portions 42c and 42d in the same manner as described above and a support portion 44 is provided and an inclined portion 44a Is formed.

A receiving portion S for receiving the elastic portion 11 is formed between the four guide portions 42a to 42d and recessed recesses 45a and 45b are formed on both sides of the front inner side of the housing 41 do.

The needle holder 20 is formed with a through-hole through which both ends thereof are inserted. A lancet needle 30 is inserted through the through-hole and the needle tip 31 is exposed forward. The needle holder 20 has protruding portions 22a and 22b which are coupled to the sliding groove H and are formed at both sides of the needle holder 20 with engagement grooves 21 Is formed. The protrusions 22a and 22b are advanced and retracted in the sliding groove H when the elastic portion 11 is compressed and released.

The elastic portion 11 to which the needle holder 20 is coupled is inserted into the receiving portion S and the first extending portion 12a, the second extending portion 12b, and the third extending portion 12c The fixing portion 12 is inserted through a space formed between any one of the four guide portions 42a to 42d and the housing 41. [

2 and 4, the slider 50 includes a through-hole 57 formed at a front portion thereof and sized to allow the needle tip 31 to pass therethrough, and four through-holes 57 formed at the four corners of the front portion, Four sliding portions 51a to 51d and a pair of sliding portions 51c and 51d which are slidably inserted through a space formed between the guide portion 41 and the four guide portions 42a to 42d, A first pressing portion 53 which is engaged with the first projection 22b of the protrusions 22a and 22b formed on both sides of the needle holder 20 when the needle holder 20 is inserted into the inside of the needle holder 20 to apply a force to the needle holder 20, And is engaged with the second protrusion 22a of the protrusions 22a and 22b formed on both sides of the needle holder 20 when inserted into the housing 41, A second pressing portion 52 for applying a force to the holder 20, and a second pressing portion 52 which is provided between the two sliding portions 51a and 51c, When the slider 50 is fully inserted into the housing 41 by applying pressure while the slider 50 is engaged with the needle holder 20, the slider 50 is engaged with the engaging groove 45b recessed in the front of the housing 41 A first engaging portion 54a for fixing the elastically compressed needle holder 20 and a second engaging portion 54b provided between the two sliding portions 51b and 51d and applying pressure in a state where the slider 50 is engaged with the needle holder 20, A second latching part (not shown) which is engaged with another engaging groove 45a recessed inwardly of the front of the housing 41 to fix the slider 50 and the elastically compressed needle holder 20, 54b.

The first pressing portion 53 is provided with an inclined portion 53a inclined outwardly of the front portion and the needle holder 20 is pushed into the inside of the front portion while being engaged with the first projection 22b, The first pressing protrusion 53b is protruded so as to be able to push and move the pressing protrusion 53b. The second pressing portion 52 is provided with an inclined portion 52a formed at an outer side of the front portion and an inner side of the front portion is pressed against the inner side of the housing 41 by pushing the needle holder 20 in a state of being engaged with the second projecting portion 22a The second pressing protrusion 52b is protruded to be able to push and move the second pressing protrusion 52b.

Referring to FIG. 3, the operation of the spring 10 for a lancet device of the present invention will be described in detail.

First, in step (a), while the slider 50 slides into the housing 41, the first pressing protrusion 53b of the first pressing part 53 and the second pressing protrusion 53b of the second pressing part 52, The elastic portion 11 is compressed by pushing the first projecting portion 22b and the second projecting portion 22a of the needle holder 20 into the inside of the housing 41 and moving them. At this time, if the slider 50 is sufficiently moved to the inside of the housing 41, the first engaging portion 54a is caught by the engaging groove 45b and the second engaging portion 54b is caught by another engaging groove 45a So that the needle holder 20 and the elastic portion 11 are maintained in a compressed state. The first extended portion 12a, the second extended portion 12b and the third extended portion 12c constituting the fixing portion 12 are located in a space formed between the guide portion 42b and the housing 41, It is stopped regardless of the compression of the part 11.

Of course, when the elastic part 11 is compressed and the needle holder 20 is slid rearward, the projections 22a and 22b provided on both sides of the needle holder 20 move along the sliding groove H.

Next, in step (b), when the front surface of the slider 50 is pressed against the patient's skin, the slider 50 is further inserted into the housing 41. At this time, in the front of the first pressing part 53 The end of the formed inclined portion 53a slides on an inclined portion 44a inclined at a predetermined angle in front of the support portion 44 and is inclined upwardly at an inclined portion 52a formed in front of the second pressured portion 52, The slant part 43a is inclined at a predetermined angle in front of the support part 43 and slides up.

As a result, the front portions of the first pressurizing portion 53 and the second pressurizing portion 52 are opened to the opposite sides so that the first pressurizing protrusion 53b of the first pressurizing portion 53 and the second pressurizing portion 52 The second presser protrusion 52b is separated from the first protrusion 22b and the second protrusion 22a of the needle holder 20 and the needle holder 20 is moved forward by the elastic action of the elastic portion 11 The needle tip 31 is exposed through the through hole 57 to the outside. it can be seen that the third extended portion 12c constituting the fixing portion 12 is in contact with the sliding portion 51a which has been pushed into the inside of the housing 41. [ the sliding portion 51a is separated from the housing 41 because the sliding portion 51a and the third extending portion 12c are apart from each other but in (b) the slider 50 is pressed in contact with the skin of the patient, So that it abuts on the third extended portion 12c.

Finally, in the step (c), the needle tip 31, which has been fired forward due to the elastic action of the elastic portion 11, is retracted back into the slider 50 again. The elastic portion 11 is elastically deformed in the interior of the housing 41 so that the elastic portion 11 can be elastically deformed in the inner portion of the housing 41. In this case, So that the needle tip 31 is fired forward through the through hole 57 and then can not retract back inside the slider 50 and remains exposed to the outside.

The third extended portion 12c of the fixed portion 12 constituting the spring 10 for the lancet device according to the present invention is hooked on the sliding portion 51a of the slider 50, The other end is fixed without moving inside the housing 41 so that the needle tip 31 which has been fired outside the slider 50 can safely retract into the inside of the slider 50. [

According to the present invention, since the lancet needle is fired and the patient's skin is pushed, the position of the spring is fixed by using the slider, so that the spring can be prevented from moving back and forth and the lancet needle can be retracted back to the inside of the main body, It is possible to prevent accidents.

Needless to say, many other modifications and applications are possible for those skilled in the art within the scope of the basic technical idea of the present invention.

10: spring for lancet device 11:
12a: first extension part 12b: second extension part
12c: third extension part 20: needle holder
21: engaging groove 22a, 22b:
30: lancet needle 31: needle tip
40: main body 41: housing
42a to 42d: guide portion 43, 44:
43a, 44a: an inclined portion 45a, 45b:
50: Sliders 51a to 51d:
52: second pressing portion 52a, 53a: inclined portion
52b: second pressing projection 53: first pressing portion
53b: first pressing projection 54a: first pressing portion
54b: second engaging portion 57: through hole

Claims (4)

A spring for a lancet device which is provided inside a main body of a lancet device and moves a lancet needle tip by an elastic action,
An elastic part having one end coupled to the needle holder through which the lancet needle is coupled and wound in the form of a coil spring; And
The needle holder is hooked on the slider in a state in which the needle holder is moved rearward of the main body by a slider extending from the other end of the elastic part and arranged in the longitudinal direction of the elastic part on the side of the elastic part, The lancet needle is pushed forward by the elastic action of the resilient portion and the lancet needle is stuck to the inner slider so that the lancet needle strikes the patient's skin and then enters the inside of the body again so that the elastic portion does not move forward And a fixing part for fixing the lancet device.
The method according to claim 1,
Wherein the fixing portion is disposed parallel to the elastic portion on the side of the elastic portion and is formed to a size corresponding to 1/2 of the length of the elastic portion.
The method according to claim 1,
The fixed portion
A first extension extending in a tangential direction at the other end of the elastic portion;
A second extension portion bent at the first extension portion and extending a certain length in the direction of one end of the elastic portion; And
And a third extending portion bent in the direction of the elastic portion or the opposite direction in the second extension portion and hooked on the slider slidingly coupled to the inside.
The method of claim 3,
And an angle formed by the first extending portion and the second extending portion and an angle formed by the second extending portion and the third extending portion is 90 占 3 3 属.
KR2020150001766U 2015-03-20 2015-03-20 Spring for lancet device KR20160003355U (en)

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KR2020150001766U KR20160003355U (en) 2015-03-20 2015-03-20 Spring for lancet device

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KR2020150001766U KR20160003355U (en) 2015-03-20 2015-03-20 Spring for lancet device

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KR20160003355U true KR20160003355U (en) 2016-09-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022131524A1 (en) * 2020-12-17 2022-06-23 주식회사 오렌지메딕스 Surgical safety needle assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022131524A1 (en) * 2020-12-17 2022-06-23 주식회사 오렌지메딕스 Surgical safety needle assembly

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