KR101208479B1 - Blood lancet device - Google Patents

Abstract

PURPOSE: A blood collecting device is provided to prevent secondary infection by locating an ejection button for withdrawing a lancet in an opposite side to a lancet. CONSTITUTION: An inner case(20) is inserted into an outer case(10). A main shaft(40) is inserted into the inner hollow of the inner case. An annular protrusion(45) is formed on the outer circumference of a stick type body(44) and a lancet combining unit(42) of the main shaft. A lancet(60) is composed of a blood lancet(62) and a lancet support(64) which supports the blood lancet. The blood lancet is injected to the skin of a patient to collect the blood.

Description

Blood collector {BLOOD LANCET DEVICE}

The present invention relates to a blood collection device, and more particularly, to a blood collection device that is easy to separate the needle, can minimize secondary infection through the needle, and can alleviate the pain through the depth control of the needle.

A blood collection device is a small device for collecting an appropriate amount of blood for the presence of a disease, that is, for medical examination or even for the treatment thereof, and examples thereof include devices disclosed in Korean Patent Registration 10-1050706 or Korean Patent Registration 10-1071657.

In general, most people with chronic diabetes should have their own blood sugar test daily at home, but blood glucose testing is essential for blood sugar testing. The average amount of blood must be drawn three or more times a day, so the pain is not negligible. In addition, the use of blood collectors is progressing not only at home but also in hospitals or health centers. Blood collection is the second most dangerous thing because it is. At home, infection can be caused by reusing needles, but the case is inadequate, but the chances are high when blood is collected by others in the hospital or elsewhere.

By the way, the conventional blood collection device including the above-mentioned patents are not easy to separate the blood needle after the blood collection, there has been a problem that the secondary infection is caused by the operator in contact with the blood stuck or flowed out of the blood collection needle during the separation. In addition, blood collection was not painful for patients who had to collect blood several times a day because of the pain caused by the blow of the needle.

The present invention was devised to solve the problems of the conventional general blood collector as described above, the device for penetrating the skin depth of the blood collector is located at a distance from the blood needle, the separation of the blood needle is easy, when the worker is stuck in the blood needle It aims to minimize secondary infection by the back.

Blood collection device according to the present invention for achieving the above object, the outer case consisting of a cylindrical; A cylindrical inner case inserted into the outer case and having an annular support having a hole formed in the center of the upper end thereof, and having a lower end extending below the lower end of the outer case; The hollow shaft is inserted into the inner case, the outer peripheral surface of the central portion is formed with an annular projection, the upper end extends through the upper through the central through hole of the inner case, the lower portion is formed with a lancet coupling portion is inserted into the lancet, A main shaft for lowering the lancet according to the descending operation to infiltrate the blood collection needle protruding from the lancet into the skin of the patient; A first spring, one end of which is supported inside the annular support of the inner case and the other end of which is supported by an annular projection of the outer circumferential surface of the main shaft to press the main shaft downward; A lower cap inserted into and coupled to the lower end of the inner case extending below the lower end of the outer case and having a salivary through-hole to allow a blood collection needle to pass through the center of the lower end; One side is fixed to prevent the main shaft from falling down, the other side is exposed to the outside through the inner case and the outer case, the user to press the exposed portion with a finger to release the latch with the main shaft to release the main shaft It includes a blood collection start to move down.

The blood collection start port, the front side is exposed to the outside through a button hole formed through the outer peripheral surface of the outer case, the rear side and the blood collection button formed with a plurality of hooks protruding; It is inserted into the through hole formed on the outer circumferential surface of the inner case, the front button is formed with a button receiving groove to accommodate the blood collection button, the rear center button is formed with a shaft receiving groove to accommodate the main shaft is inserted up and down to move With a holder; Inserted from the rear side into the shaft receiving groove of the button holder is coupled to the hook formed in the rear of the blood collection button through the button holder, the engaging projection is formed on the inner wall is engaged with the engaging groove formed on the rear of the main shaft A shaft lock for limiting the downward movement of the main shaft and horizontally moving to the rear side according to the pressing of the blood collection button to enable the downward movement of the main shaft by disengaging the engaging protrusion from the locking groove of the main shaft; It is provided between the back of the blood collection button and the button receiving groove of the button holder includes a spring for returning the blood collection button when the push of the blood collection button.

The upper end of the main shaft is fitted with a shaft cap formed with stopping protrusions on the left and right sides of the outer circumferential surface, the outer case collides with the stopping protrusion when the main shaft descends from above to limit the falling height of the main shaft patient A depth adjusting means for adjusting the depth of penetration into the skin of the insert; The depth adjusting mechanism is formed in a cylindrical shape, the lower half is inserted rotatably coupled between the outer case and the inner case, the upper half is disposed exposed to the upper side of the outer case, the inner circumferential surface is formed with a protruding annular projection, the annular A through hole is formed in the center of the protrusion so that the main shaft is inserted therethrough, and the lower surface of the annular protrusion is supported by the upper annular support of the inner case, and the upper surface collides with the stopping protrusion of the shaft cap when the main shaft descends. A stopping rib protruding annularly upwardly and vertically limiting the height of falling of; The top surface of the stopping rib is formed with a step surface consisting of different height steps, the number and height of the step surface is formed in one side half and the other half symmetrical with each other, the lowering of the main shaft according to the rotation of the depth adjustment By adjusting the height step by step, it is possible to control the depth of penetration of the blood collection needle.

The lower end of the second spring for returning by pressing the main shaft moved downwards during blood collection upward is supported on a portion located inside the stopper rib of the depth adjusting port, and the upper end of the second spring is on the upper side of the main shaft. It is supported on the lower surface of the shaft cap coupled to.

A plurality of locking grooves are formed on the lower inner circumferential surface of the depth adjusting device spaced apart from each other by a predetermined interval, and a locking protrusion is formed on the upper outer circumferential surface of the inner case to support the locking grooves. When rotating, the locking projection is sequentially locked to the plurality of locking grooves.

The rod-shaped member is inserted into the inner hollow of the main shaft, the upper end is fitted with the eject button is inserted into the depth adjustment opening, the lower portion is lowered by pressing the eject button is mounted on the lancet coupling portion of the main shaft It further comprises an eject shaft for pushing out the lancet and separating it outward.

The lower end portion of the annular protrusion formed on the inner circumferential surface of the depth adjuster is positioned on the outside of the stopping rib to support the lower end of the third spring for pressing the eject button upward when the eject button is released to move the eject shaft upward. The upper end of the third spring is supported by the eject button.

According to the present invention as described above, since the eject button for lancet extraction is disposed in the opposite position to the lancet and the depth of penetration control device in the skin of the lancet is located at a long distance, it is possible to prevent secondary infection during lancet extraction or depth control, It is easy to separate the needle and has the advantage of alleviating the pain by adjusting the depth of penetration into the skin of the needle.

1 is an external perspective view of a blood collector according to the present invention;
2 is an exploded view of a blood collector according to the present invention,
3 is a cross-sectional view of a blood collector according to the present invention,
Figure 4 is an exploded perspective view of the blood collection start opening of the blood collector according to the present invention,
Figure 5 (a) is a horizontal cut perspective view showing the configuration of the stopping rib of the depth adjustment mechanism,
Figure 5 (b) is a lower perspective view showing the lower inner peripheral surface shape of the stopping rib,
6 is an operating state of the blood collection start opening according to the present invention,
7 is a plan view (top) showing the positional relationship between the stepping surface of the stopping rib and the stopping protrusion of the shaft cap according to the rotation of the depth adjusting device of the blood collector according to the present invention, and the blood collector showing the change in the depth of blood collection needle Section view (bottom),
8 is a lancet extraction operation state diagram of the blood collection machine according to the present invention.

Hereinafter, the configuration and operation of the blood collection device according to the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in Figures 1 to 3, the blood collector according to the present invention, the outer case 10, the inner case 20, the main shaft 40, the lancet 60, the lower cap 70, the blood collection opening ( 80), the eject shaft 90, the eject button 92, and the depth adjustment device (100).

The outer case 10 constitutes the body of the blood collection device, and is generally composed of a hollow hollow cylinder, and one side is provided with a button hole 12 so that the blood collection button 81 described later can be inserted.

The inner case 20 is a cylindrical body inserted into the outer case 10, and is composed of a hollow hollow cylinder like the outer case 10, so that the upper end and the lower end are stepped to have a smaller diameter than the center part, respectively. Is formed, the upper end portion is formed with an annular support portion 22 is formed with a through hole 23 in the center, the outer peripheral surface is formed with a stopper 24 to serve as a stopper step of the depth adjustment step during the rotation of the depth adjusting device 100 to be described later. It is preferable that the cross section of the locking protrusion 24 is formed of a triangle. A through hole 26 is formed at one side of the center outer circumferential surface of the inner case 20 so that the button holder 82 for receiving the blood collection button 81 is inserted. Then, the lower end portion of the inner case 20 is exposed below the lower portion of the outer case 10 is composed of a polygon, such as octagonal to form a cap coupling portion 28 is inserted into the lower cap 70 to be described later It is preferable that the locking jaw 29 is formed around the cap coupling portion 28 to engage with the lower cap 70.

The main shaft 40 is inserted into the inner hollow of the inner case 20, and at the bottom gripping the lancet (60) having a blood collection needle 62, and moves down by pressing the blood collection button 81 to be described later It is the part to make blood collection.

The main shaft 40 is a hollow hollow shaft, as shown in Figure 2, the lower portion is a generally cylindrical lancet coupling portion formed with a lancet 60 receiving space so that the lancet 60 can be inserted from the lower ( 42 is formed, and the upper portion of the lancet coupling portion 42 is formed to extend upwardly and hollow hollow rod-shaped body 44 is formed. In addition, an annular protrusion 45 for supporting a lower end of the first spring 30, which will be described later, is formed on the inner circumferential surface of the rod body 44 at the inner side of the inner case 20, and the annular protrusion 45 is formed. On one side of the lower rod-shaped body 44 of the locking groove 46 is formed to be supported by the locking protrusion 24 of the shaft lock 84 to be described later. And, as shown in Figure 2, the lower portion of the annular projection 45 of the rod-shaped body 44 is configured in a substantially rectangular bar shape so that the button holder 82 and the shaft lock 84 to be described later can be coupled The upper portion of the annular projection 45 is preferably configured in a circular rod shape so that the first spring 30 can be fitted to the outer circumferential surface.

Here, the lancet engaging portion 42 and the rod-shaped body 44 are both provided with a hollow inside, each hollow is in communication with each other. In addition, the lancet engaging portion 42 of the main shaft 40 and the annular protrusion 45 formed on the outer circumferential surface of the rod-shaped body 44 are disposed inside the inner case 20 and the upper end of the rod-shaped body 44. The penetrating through the upper through hole 23 of the inner case 20 is extended upwardly to be exposed is disposed inside the depth adjusting device 100 to be described later. The first spring 30 is provided between the upper inner surface of the inner case 20 and the annular protrusion 45 of the main shaft 40. The first spring 30 lowers the main shaft 40 by a restoring force when the blood collection button 81 is pressed as a compression spring.

In addition, the upper end of the main shaft 40, that is, the end of the cylindrical body is coupled to the shaft cap 50 for supporting the upper end of the second spring 58 to be described later. There is no particular limitation on the coupling structure of the shaft cap 50, but as shown in Figure 2, the engaging projection 47 is formed on the outer peripheral surface of the rod-shaped body 44 of the main shaft 40, the shaft cap The inner circumferential surface of the 50 is preferably formed with a coupling groove 54 corresponding to the coupling protrusion 47. More specifically, the coupling protrusion 47 is formed on the left and right sides of the outer peripheral surface of the upper end of the rod-shaped body 44 of the main shaft 40, respectively, and is generally formed in a T-shape, the upper portion, that is, the horizontal portion is upward It is formed to be inclined to narrow, the inner circumferential surface of the shaft cap 50 is formed with an annular rib 52 having a predetermined thickness, but cut off the portion of the annular rib 52 corresponding to the position of the engaging projection 47, the coupling groove ( 54) is preferably formed. Accordingly, when the upper end of the rod-shaped body 44 of the main shaft 40 is inserted into the shaft cap 50 from below, the inclined upper surface of the T-shaped coupling protrusion 47 is annular rib of the inner circumferential surface of the shaft cap 50. The shaft cap 50 and the main shaft 40 in such a way that the vertical portion of the T-shaped coupling protrusion 47 is inserted into the coupling groove 54 and the horizontal portion is seated and supported by the annular rib 52. Will be combined.

On the other hand, the outer circumferential surface of the shaft cap 50 is preferably a stopping protrusion 56 protruding from both the left and right sides. The stopper protrusion 56 serves to limit the skin penetration depth of the blood collection needle 62 in contact with the stopping rib 120 of the depth adjusting device 100, which will be described later. . However, it is preferable that the stopper protrusion 56 is formed in a substantially rectangular cross section and has a flat bottom surface.

The lancet 60 is composed of a blood collection needle 62 for penetrating the skin of a patient to collect blood and a support body 64 supporting the blood collection needle 62. The lancet 60 is inserted into the lancet coupling portion 42 of the main shaft 40 by the needle support 64 is coupled by interference fit.

As already mentioned above, the lower cap 70 is inserted into the lower cap coupling portion 28 of the inner case 20 exposed to the lower side of the outer case 10 so as to cover the blood collection needle 62 so that others have collected the blood collection needle 62. It is configured to prevent the secondary infection caused by the puncture, the lower end of the blood collection needle when the blood collection button (81) is lowered for the blood collection when the blood collection needle 62 is exposed to the outside to perform blood collection through the acupuncture hole 72 ) Is formed. In addition, the lower cap 70 is made of a transparent material is configured to determine whether the lancet (60) of the blood collection needle 62 and the position of the blood collection needle 62 and the like. In addition, the upper inner circumference of the lower cap 70 is configured in a polygonal shape, such as an octagon to fit the cap coupling portion 28 of the inner case 20, for engaging with the cap coupling portion 28 It has a locking groove 74 corresponding to the locking jaw 29 of the cap coupling portion 28.

The blood collection start hole 80 is a portion for starting the blood collection with the blood collection needle 62 protruding at the lower end of the lancet 60 by moving the main shaft 40 and the lancet 60 downward as the user presses the finger. As shown in 4, the blood collection button 81, the button holder 82 and the shaft lock 84 is included.

The blood collection button 81 is an operation button that the user presses directly by using a finger or the like to start the blood collection, and is generally composed of a block of a rectangular shape, as shown in FIG. The hole 12 is exposed outside. It is preferable that a plurality of hooks 81a protrude from the rear side of the blood collection button 81 to be coupled to the shaft lock 84 to be described later. Here, the engaging portion of the hook 81a, as shown in Figure 4, preferably bent in a substantially 'b' shape so as to face the left and right both sides.

The button holder 82 is a means for accommodating the blood collection button 81 and guides the movement of the blood collection button 81 by a pressing operation and a spring action, which will be described later, and the through hole 26 of the inner case 20. Is inserted into the mounting. The button holder 82 is formed of a block body having a substantially rectangular cross section, and is inserted into the through hole 26 of the cylindrical inner case 20 so that the front surface is convexly curved to correspond to the curvature of the inner case 20. It is formed on the front circumference is formed so as to prevent excessive insertion into the inner hung on the circumference when inserted into the through hole 26 of the inner case 20.

The front of the button holder 82 is formed with a button receiving groove 82a of a depth corresponding to the shape and thickness of the blood collection button so that the blood collection button 81 can be accommodated. Spring 86 is installed in the center of the button receiving groove (82a) to provide an elastic force when pressing the blood collection button 81 and the restoring force when the release button, the rear inner wall left and right sides of the button receiving groove (82a) will be described later The shaft lock transfer hole 82b is penetrated to the rear surface of the button holder 82 so that the shaft lock 84 is inserted and movable. In addition, as shown in FIG. 4, the button holder 82 is inserted into a rectangular bar-shaped part of the rod-shaped body 44 of the main shaft 40, and the main shaft 40 is disposed up and down. A concave shaft accommodating groove 82c having a generally 'c' shape is formed to be inserted and received in a movable manner.

As shown in Figure 4, the button receiving groove (82a) is supported on the bracket 43 formed separately on the upper end of the lancet engaging portion 42 of the main shaft 40, the lower of the main shaft 40 At the time, the main shaft 40 is also caught by the stepped portion 48 formed directly below the annular projection 45 of the rod-shaped body 44 to prevent excessively falling. Here, the stepped 48 may be formed only on either side of the left or right side of the rod-shaped body 44 of the main shaft 40 or may be formed on both sides.

The shaft lock 84 is locked to prevent the main shaft 40 from moving downward, and when the blood collection button 81 is pressed, the locking is released to enable the downward movement of the main shaft 40. As shown in Figure 4, it is generally formed in the 'c' shape is fitted to the rear of the shaft lock feed hole (82b) of the button holder 82 coupled to the rod-shaped body 44 of the main shaft (40). Hook grooves 84a to which the hooks 81a of the blood collection buttons 81 are coupled are formed at both front left and right sides of the shaft lock 84, and both front left and right ends of the shaft lock 84 are button holders 82. Hook 81a of the blood collection button 81 is coupled to the hook groove 84a in the state of being inserted into the shaft lock transfer hole 82b of the shaft lock 84 and the blood collection button 81 is configured to move integrally do. In addition, a locking protrusion 24 corresponding to the locking groove 46 formed concave on the rear of the rod-shaped body 44 of the main shaft 40 protrudes forward on the rear inner wall of the shaft lock 84. Is formed. The shaft lock 84 prevents the downward movement of the main shaft 40 as the locking protrusion 84b is engaged with the locking groove 46 of the main shaft 40, and retreats as the blood collection button 81 is pressed. As the locking projection 84b is separated from the locking groove 46 of the main shaft 40, the main shaft 40 moves downward. This operation will be described later in detail.

Eject shaft 90 is to take out the bleeding needle 62 after the blood is completed, as shown in Figures 2 and 3, consisting of a generally thin rod-shaped member, the inside of the main shaft 40 from the upper side The lower end portion is inserted into the hollow and extends to the upper end of the lancet 60 mounted on the lancet coupling portion 42 of the main shaft 40. The eject button 92 is fitted to the upper end of the eject shaft 90, and the eject button 92 is fitted to the upper opening of the depth adjusting device 100 to be described later. As the eject button 92 is pressed, the eject shaft 90 is lowered to push the lancet 60 so that the lancet 60 can be separated out. This operation will be described later in detail.

Depth adjustment device 100 is to control the intensity of pain by adjusting the depth of the blood needle 62 penetrates the skin of the patient, as shown in Figures 2 and 3, consisting of a generally cylindrical but the lower half It is inserted and coupled between the case 10 and the inner case 20 is configured to be rotatable, the upper half is disposed exposed to the upper side of the outer case 10, the outer circumferential surface is the upper half and the lower half to be supported by the upper end of the outer case 10 Is formed stepped. In addition, an annular protrusion 110 protrudes from the inner circumferential surface of the central portion of the depth adjusting device 100, and a through hole 112 is formed in the center of the annular protrusion 110 so that the main shaft 40 is inserted therethrough. The lower surface of the annular projection 110 is supported by the upper annular support portion 22 of the inner case 20, the upper surface is formed with an annular stopping rib 120 vertically upward. A lower end of the second spring 58 is supported by a portion of the annular protrusion 110 of the depth adjusting device 100 that is positioned inside the stopping rib 120, and an upper end of the second spring 58 is supported. One main shaft 40 is supported on the lower surface of the shaft cap 50 coupled to the top. The second spring 58 presses the main shaft 40, which has moved downward during blood collection, upwards to return to the original position. In addition, a lower end of the third spring 94 is supported at a portion of the annular protrusion 110 positioned outside the stopping rib 120, and an upper end of the third spring 94 is the eject button 92. Is supported). The second spring 58 presses the eject button 92 to take out the lancet 60, and then presses the eject button 92 upward to return to the original position.

Meanwhile, FIG. 5 shows various views of the depth adjusting device 100. 5 (a) is a horizontal cutaway perspective view for more clearly presenting the configuration of the stopping rib 120 of the depth adjusting device 100, Figure 5 (b) of the stopper rib 120 A perspective view from below is shown to clearly show the lower inner circumferential shape.

As shown in (a) of FIG. 5, the top surface of the stopping rib 120 is formed with stepped surfaces having different height steps, and the number and height of the stepped surfaces are symmetrical with one half and the other half. It is configured to be. That is, as shown in (a) of FIG. 5, stepped surfaces having different heights as indicated by I, II, III, IV, and V are formed at one half and I ', symmetrically at the other end thereof. Different step surfaces of II ', III', IV ', and V' are formed, and the step heights facing each other (for example, step surfaces marked with the same letter as I and I ', II and II') are the same height It is configured to have.

When the user presses the blood collection button 81 to collect the blood, the main shaft 40 is lowered, and the stopping protrusion 56 protruding from the shaft cap 50 at the top of the main shaft 40 is the depth adjusting hole 100. By hitting the upper end surface of the stopping rib 120 of the main shaft 40 is no longer able to move downward. In this case, when the depth adjusting device 100 is rotated in stages, the stepped surface of the stopping rib 120 to which the stopping protrusion 56 of the shaft cap 50 is caught is changed to lower the height of the main shaft 40. Since it is different, the skin penetration depth of the blood collection needle 62 is changed. This operation will be described later in detail.

On the other hand, as shown in Figure 5 (b), a plurality of engaging grooves 130 are formed on the lower inner circumferential surface of the depth adjusting device 100 spaced by a predetermined interval. The locking groove 130 has a cross-section 'V' formed, as described above, the locking projection 24 having a triangular cross-section formed on the upper outer peripheral surface of the inner case 20 is configured to be supported, the blood collection needle In order to control the penetration depth of 62, the locking protrusion 24 is configured to be sequentially caught in the plurality of locking grooves 130 by rotating the depth adjusting means 100 step by step with respect to the central axis. The position of the locking protrusion 24 of the depth adjusting device 100 is formed to correspond to each stepped position of the stopping rib 120, the specific height stepped surface of the stopping rib 120 shaft cap 50 It is fixed at the position colliding with the stopper projection 56 of the ().

So far, the configuration of the blood collector according to the present invention has been described. Hereinafter, the operation relationship of the blood collector according to the present invention will be described in detail.

First, a blood collection method using a blood collection device according to the present invention will be described. 6 is an operational state diagram of the blood collection start opening 80 according to the present invention. As shown in FIG. 6A, when the lancet 60 is inserted into and mounted on the lancet coupling portion 42 of the main shaft 40, the locking protrusion 84b of the shaft lock 84 is connected to the main shaft. 40) It is fixed and supported by the locking groove 46 of the rear, blood collection button 81 is exposed to the outer case 10 outside by the spring 86 in the button holder 82. In the present state, when the user presses the blood collection button 81 to start the blood collection, as shown in FIG. 6 (b), the blood collection button 81 is pressed as the button of the button holder 82 as the spring 86 is compressed. The shaft lock 84 accommodated in the accommodation groove 82a and hooked to the blood collection button 81 is retracted. As the shaft lock 84 is retracted, the locking protrusion 84b of the shaft lock 84 is separated from the locking groove 46 of the main shaft 40 to be released. Accordingly, as shown in (c) of FIG. 6, the main shaft 40 is lowered by the restoring force of the first spring 30 is extended, the lower lancet engaging portion 42 of the main shaft 40 The combined lancet 60 descends and blood collection needle 62 penetrates into the patient's skin to start blood collection. On the other hand, the main shaft 40, which was moved downward for blood collection, is moved back upward again by the second spring 58, which will be described later, and is fixed to the initial position again according to the release of the blood collection button 81. For the next blood collection, open the lower cap 70, remove the used lancet 60, and then start a blood collection in the same manner as described above by attaching a new lancet 60 to the lancet coupling portion 42 of the main shaft 40. do.

Next, the function of adjusting the depth of penetration of the blood collection needle 62 of the blood collection machine according to the present invention will be described. 7 is a plan view showing the positional relationship between the stepping surface of the stopper rib 120 and the stopping protrusion 56 of the shaft cap 50 according to the rotation of the depth adjusting device 100 of the blood collection device according to the present invention (FIG. 7). Top view) and a front sectional view (bottom view of FIG. 7) showing the change in penetration depth is presented.

Figure 7 (a) is a state in which the depth adjustment device 100 is set to the initial default position, as can be seen from the top view of Figure 7 (a), the shaft fitted to the upper end of the main shaft 40 A state in which the stopping protrusion 56 of the cap 50 is disposed at a position corresponding to the stepped plane I having the lowest height among the stepped surfaces formed on the top end surface of the stopping rib 120 of the depth adjusting device 100 is shown. . In this state, as can be seen from the lower view of FIG. 7A, the main shaft 40 is lowered by pressing the blood collection button 81, and the stopping protrusion 56 is inward of the depth adjusting device 100. As the height of the upper end surface of the stopping rib 120 collides with the lowest stepped plane I and further lowering is prevented, the depth of penetration of the blood needle 62 into the patient's skin is limited to HI. After the impact on the stepped surface, the main shaft 40 is returned to its original position by the second spring 58.

Next, as shown in (b) of FIG. 7, when the depth adjusting tool 100 is rotated at an angle in the direction of the arrow, the stoppering protrusion 56 of the shaft cap 50 is connected to the depth adjusting tool 100. The stepped ribs 120 are disposed at positions corresponding to the second lowest stepped surfaces II of the stepped surfaces formed on the top surface. In this state, when the main shaft 40 is lowered by pressing the blood collection button 81, the stopping protrusion 56 descends and collides with the step II, thereby preventing further lowering. The penetration into the interior is limited to HII. Similarly, as shown in (c) of FIG. 7, when the depth adjusting tool 100 is rotated further by an angle, the stopping protrusion 56 is disposed on the upper end surface of the stopping rib 120 of the depth adjusting device 100. It is disposed at a position corresponding to the third lowest step surface III of the formed step surfaces, and the depth of the blood collection needle 62 is limited to HIII. By adjusting the depth of penetration of the blood collection needle 62 in this way, the degree of pain felt by the patient can be controlled.

As shown in FIG. 1, the degree of rotation of each step of the depth adjusting device 100, that is, the rotation angle, forms a depth marker 140 on the outer circumferential surface of the depth adjusting device 100, and the upper end of the outer case 10. It is preferable to configure an outer circumferential surface by marking an arrow 150 so that a user can select a rotation angle corresponding to a desired depth of the blood collection needle 62.

On the other hand, Figure 8 is a diagram showing a method of taking out the lancet 60 of the blood collector according to the present invention. The lancet 60 used after the blood collection is completed should be withdrawn from the blood collection device and discarded. As shown in FIG. 8A, first, the eject shaft 90 has a stepped portion formed on a lower outer circumferential surface thereof, and the engaging protrusion 84b of the shaft lock 84 is caught on the stepped portion. In order to release the locking protrusion 84b from the step of the eject shaft 90, the blood collection button 81 is first pressed, and then the lower cap 70 of the lower part of the blood collector is removed for taking out the lancet 60, and the upper part of the blood collector Press the eject button 92 with a thumb or the like. Then, the eject shaft 90 coupled to the eject button 92 is lowered, and at this time, the third spring 94 is contracted. As the eject shaft 90 descends, the lower end of the eject shaft 90 presses the upper end of the lancet 60 to separate and extract the lancet 60 from the lancet coupling portion 42 of the main shaft 40. After the lancet 60 is taken out, the third spring 94 is restored and the eject button 92 is pushed upward to return the eject button 92 and the eject shaft 90 to the initial state.

Conventional blood collectors do not have a separate lancet ejection tool has been the main way to separate by pulling the lancet by hand. In this case, there is a risk of secondary infection due to the worker being pierced by the lancet end of the lancet end. As described above, the ejector button 92 for taking out the lancet is disposed at the opposite position of the lancet. This could end the concern of this secondary infection.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the scope and spirit of the present invention is not limited to these specific embodiments, and that various modifications and changes may be made without departing from the spirit of the present invention. If you have, you will understand. Therefore, since the embodiments described above are provided to completely inform the scope of the invention to those skilled in the art, it should be understood that they are exemplary in all respects and not limited. The invention is only defined by the scope of the claims.

10: outer case 12: buttonhole
20: inner case 22: annular support
23: through-hole 24: jamming projection
26: through hole 28: cap coupling portion
29: locking jaw 30: the first spring
40: main shaft 42: lancet coupling portion
43: bracket 44: rod body
45: annular projection 46: locking groove
47: engaging projection 48: step
50: shaft cap 52: annular rib
54: coupling groove 56: stopping protrusion
58: second spring 60: lancet
62: blood collection needle 64: needle support body
70: lower cap 72: acupuncture through hole
74: jam groove 80: blood collection start
81: blood collection button
81a: hook 82: button holder
82a: Button receiving groove 82b: Shaft lock feed
82c: Shaft accommodation groove 84: Shaft lock
84a: hook groove 84b: locking projection
86: spring 90: eject shaft
92: eject button 94: third spring
100: depth control 110: annular projection
112: through hole 120: stopping rib
130: hanging groove 140: depth mark
150: arrow

Claims (7)

An outer case having a cylindrical shape; A cylindrical inner case inserted into the outer case and having an annular support having a hole formed in the center of the upper end thereof, and having a lower end extending below the lower end of the outer case; The hollow shaft is inserted into the inner case, the outer peripheral surface of the central portion is formed with an annular projection, the upper end extends through the upper through the central through hole of the inner case, the lower portion is formed with a lancet coupling portion is inserted into the lancet, A main shaft for lowering the lancet according to the descending operation to infiltrate the blood collection needle protruding from the lancet into the skin of the patient; A first spring, one end of which is supported inside the annular support of the inner case and the other end of which is supported by an annular projection of the outer circumferential surface of the main shaft to press the main shaft downward; A lower cap inserted into and coupled to the lower end of the inner case extending below the lower end of the outer case and having a salivary through-hole to allow a blood collection needle to pass through the center of the lower end; One side is fixed to prevent the main shaft from falling down, the other side is exposed to the outside through the inner case and the outer case, the user to press the exposed portion with a finger to release the latch with the main shaft to release the main shaft It includes a blood collection start to move down;
The upper end of the main shaft is fitted with a shaft cap formed with stopping protrusions on the left and right sides of the outer circumferential surface, the outer case collides with the stopping protrusion when the main shaft descends from above to limit the falling height of the main shaft patient A depth adjusting means for adjusting the depth of penetration into the skin of the insert;
The depth adjusting mechanism is formed in a cylindrical shape, the lower half is inserted rotatably coupled between the outer case and the inner case, the upper half is disposed exposed to the upper side of the outer case, the inner circumferential surface is formed with a protruding annular projection, the annular A through hole is formed in the center of the protrusion so that the main shaft is inserted therethrough, and the lower surface of the annular protrusion is supported by the upper annular support of the inner case, and the upper surface collides with the stopping protrusion of the shaft cap when the main shaft descends. A stopping rib protruding annularly upwardly and vertically limiting the height of falling of;
The top surface of the stopping rib is formed with a step surface consisting of different height steps, the number and height of the step surface is formed in one side half and the other half symmetrical with each other, the lowering of the main shaft according to the rotation of the depth adjustment A blood collector, characterized in that by adjusting the height step by step the skin penetration depth of the blood collection needle. The method of claim 1,
The blood collection opening,
A blood collection button having a front surface exposed to the outside through a button hole formed through the outer circumferential surface of the outer case, and a plurality of hooks protruding from the rear surface thereof;
It is inserted into the through hole formed on the outer circumferential surface of the inner case, the front button is formed with a button receiving groove to accommodate the blood collection button, the rear center button is formed with a shaft receiving groove to accommodate the main shaft is inserted up and down to move With a holder;
Inserted from the rear side into the shaft receiving groove of the button holder is coupled to the hook formed in the rear of the blood collection button through the button holder, the engaging projection is formed on the inner wall is engaged with the engaging groove formed on the rear of the main shaft A shaft lock for limiting the downward movement of the main shaft and horizontally moving to the rear side according to the pressing of the blood collection button to enable the downward movement of the main shaft by disengaging the engaging protrusion from the locking groove of the main shaft;
And a spring provided between the rear of the blood collection button and the button receiving groove of the button holder to return the blood collection button when the blood collection button is released. delete The method of claim 1,
The lower end of the second spring for returning by pressing the main shaft moved downwards during blood collection upward is supported on a portion located inside the stopper rib of the depth adjusting port, and the upper end of the second spring is on the upper side of the main shaft. A blood collector, characterized in that supported on the lower surface of the shaft cap coupled to. The method according to claim 1 or 4,
A plurality of locking grooves are formed on the lower inner circumferential surface of the depth adjusting device spaced apart from each other by a predetermined interval, and a locking protrusion is formed on the upper outer circumferential surface of the inner case to support the locking grooves. When rotating, the blood collector is characterized in that the locking projection is fixed to the plurality of locking grooves sequentially. The method according to claim 1 or 4,
The rod-shaped member is inserted into the inner hollow of the main shaft, the upper end is fitted with the eject button is inserted into the depth adjustment opening, the lower portion is lowered by pressing the eject button is mounted on the lancet coupling portion of the main shaft And a ejector shaft which pushes the lancet and separates it outward. The method according to claim 6,
The lower end portion of the annular protrusion formed on the inner circumferential surface of the depth adjuster is positioned on the outside of the stopping rib to support the lower end of the third spring for pressing the eject button upward when the eject button is released to move the eject shaft upward. And an upper end of the third spring is supported by the eject button.

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