WO2019066419A1 - Pressure-operated disposable pain-free lancing device - Google Patents

Abstract

The present invention relates to a pressure-operated disposable pain-free lancing device comprising: an upper case having an opened aperture at one end thereof in the longitudinal direction, having a closed other end opposite the aperture, having flanges at both sides thereof along the longitudinal direction, having guide bar grooves formed at the flanges, and having guide grooves formed in the guide bar grooves; a lower case having an aperture, flanges, guide bar grooves and guide grooves, which symmetrically correspond to those of the upper case, and having a launching spring fixing plate on the inner side of the other end; a needle body assembly having a cylindrical upper extended part, a lower extended part for allowing a bump spring to be inserted therein, a blood-collecting needle embedded in a needle body, a launching spring inserted into and fixed to the launching spring fixing plate, the bump spring, and a blood-collecting needle protection cap; and a pressing member, which has a cylinder part vertically operated through a hole formed by the apertures of the upper case and the lower case and having a passage such that the bump spring and the lower extended part of the needle body pass therethrough, two guide bars extended from the circumference of the upper portion of the cylinder part, a guide having a predetermined length and allowing each guide bar to slide along the upper and lower guide grooves, an inducement guide formed at the end of the guide bar, and a catching part formed inward at the end of the guide bar.

Description

Pressure-actuated disposable painkillers

The present invention is characterized in that the bump spring and the lancet are sequentially hit and infiltrated by the operation of applying a pressure in the vertical direction to the skin without loading the lancet body so that the lancet can hardly be felt to neglect the pain, - It is about an operative disposable painter's blood vessel.

In some cases, a small amount of blood is sampled as a sample in order to remove eosinophilia from oriental medicine, to remove wastes from bloom, or to conduct blood type tests, blood glucose measurements, various blood tests, I feel a sense of panic because of sore throat.

The present applicant has also filed a Korean Patent Application No. 10-2016-0053935 for a disposable painless lancet for a disposable painless lancet and a disposable painkiller for use therewith. However, the above patent application had to be put into a loaded state by pushing the needle body inward before use by the user. However, there was a need for a pressurized, disposable pain-free lyophilizer that relieved or did not feel pain, and that was simple to use without the need for a loading operation. Accordingly, the present invention has been made in view of such circumstances.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a bumper device for a medical device, in which a bumper spring hits the skin when the needle penetrates the skin, disturbing the skin nerves due to the momentary impact, , The needle retracts from the skin due to the restoring force of the compressed bump spring when the force of the inertia is finished after the needle strikes the skin, and the time required for the needle to stay on the skin is short so that the patient can hardly feel pain, To provide a very simple pressure-actuated disposable painkiller.

An object of the present invention is to provide a pressure-operated disposable painkiller having an upper case, a lower case, a needle body assembly incorporated in the upper and lower cases, and a pressing member, And the other end of the opening opposite to the opening is closed and has a flange on both sides along the longitudinal direction and extends from the center of the flange bottom to the lower end on both sides An upper case having a guide groove formed therein and a guide groove formed in the guide groove; A lower case having an opening, a flange, a guide groove and a guide groove symmetrically matching with the upper case, and a launch spring fixing plate for inserting and fixing one end of the launch spring into the other end; A lower sliding plate, a connecting plate connecting between the upper sliding plate and the lower sliding plate, a columnar upper extending portion extending over the upper sliding plate for inserting the firing spring, A lower extension portion extending below the lower sliding plate, a blood collecting needle protruding from an end of the lower extension portion and embedded in the lower extension portion and the connection plate, inserted into the upper extension portion, A needle body assembly having a launch spring secured thereto, a bumper spring inserted into the lower extension and extending to enclose the lancet protection cap, and a lancet protection cap; And a cylindrical portion having a passage vertically operated through a hole formed by the openings of the upper case and the lower case and passing through the lower extension portion of the bumper spring and the needle body, The guide bar has two guide bars sliding along the guide groove, a guide having a predetermined length for each of the guide bars to slide along the guide grooves, an induction guide formed at the end of the guide bar, and an engaging part formed at the end of the guide bar Pressure disposable pain-free vascular device comprising a pressurizing member.

Another aspect of the present invention is characterized in that a lancet insertion hole is formed in the upper end of the lancet protection cap, and a portion of the upper periphery of the lancet insertion hole and a portion of the periphery of the lancet are bonded by heat fusion To provide a pressure-actuated disposable pain-killer.

According to still another aspect of the present invention, the guide groove groove of the upper and lower cases has a guide groove bend portion formed at the upper end thereof toward the outside and a guide groove engaging groove formed immediately below the outer wall of the guide groove bend portion, And the guide bar has a guide bar hooking protrusion formed between the guide and the guide, wherein the guide bar is inclined upward and outward at an end thereof, and a guide bar hooking protrusion formed between the guide and the guide guide.

The upper case has a plurality of insertion protrusions on the lower surface of the flange of the upper case and an insertion protrusion having a narrower width than the upper insertion protrusions on the lower side. And a lower portion thereof has a protrusion insertion hole having a width narrower than that of the upper protrusion insertion hole.

Another object of the present invention is to provide a pressure-actuated disposable painkiller which is characterized in that silicon or a bump spring of an elastic member is used instead of the coil-type bump spring.

The pressure-operated disposable painter's blood-collecting apparatus according to the present invention includes a coil-type bump spring that surrounds the lancet and protrudes longer than the lancet, thereby instantaneously striking the surrounding skin immediately before stabbing the lancet, It is possible to solve the problem of secondary infections due to careless management after use and to prevent the pain of the needle from being pressed, It is advantageous to use it easily.

1 is a perspective view of a pressure-operated disposable painkiller according to the present invention.

2 is a view illustrating a state where the needle body assembly of the pressure-operated disposable painkiller according to the present invention is assembled to the lower case.

3 is a view illustrating a state in which the upper case, the needle body assembly, and the lower case of the pressure-operated disposable painkiller according to the present invention are separated.

4 is an exploded perspective view of a part of a pressure-activated disposable painkiller according to the present invention.

FIG. 5 is a view showing the operation sequence of the pressure-activated disposable painkiller according to the present invention, wherein FIG. 5 (a) is a cross- (C) is a cross-sectional view showing a state in which the opening of the percussion portion touches the skin and just before the percussion of the percussion body, (d) is a sectional view showing a state in which the lancet is not inserted into the skin and the bumper spring hits the skin (E) is a cross-sectional view showing a state in which the needle penetrates into the skin at the same time when the bump spring strikes the skin, and (f) shows a state in which the needle is pulled out of the skin Fig.

Fig. 6 is a partially enlarged view of the blast section in the state immediately before the blast and Fig. 5 (c).

FIG. 7 is a partial enlarged view of FIG. 5 (e) and the percussion flap.

Fig. 8 is a partially enlarged view of the blast section for explaining the structure for preventing reuse after the firing and Fig. 5 (f).

Fig. 9 shows another embodiment of the present invention in which a step (c) of a press-action type disposable painkiller using silicon or an elastic member bump spring 33a in place of the coil-shaped bump spring 33, The state (d) in which the silicone bump spring 33a is in contact with the skin and the state (e) in which the needle enters the skin while the elastic member bump spring 33a is compressed.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. However, the detailed description and the contents shown in the drawings do not limit the present invention.

FIG. 1 is a perspective view showing a fully assembled pressurized-operation disposable painkiller according to the present invention. FIG.

FIG. 2 is a view showing a state in which the upper case 10 of the pressure-operated disposable painkiller according to the present invention is separated.

3 shows a state in which the upper case 10, the lower case 20, the needle body assembly 30, and the pressing member 40, which are the main components of the pressurized-operation disposable painkiller according to the present invention, are separated from each other FIG.

3 and 4, the pressurized-operation disposable painkiller according to the present invention is mainly composed of an upper case 10, a lower case 20, a needle body assembly 30, and a pressing member 40 And the needle body assembly 30 and the pressing member 40 are embedded in the upper case 10 and the lower case 20. The upper case 10 and the lower case 20 are each formed in a half shape symmetrical to each other so as to constitute the entire case constituting the blood collecting device of the present invention.

The material of the pressure-actuated disposable non-painterly vascular device according to the present invention is preferably all synthetic resin except for the bump spring 33, the elastic member bump spring 33a, the launch spring 34, and the lancet 32 .

1 to 4, the upper case 10 of the pressurized-action disposable painkiller according to the present invention has its lower surface opened, and a pressing member 40 is passed through at one end in the longitudinal direction And the other end opposite to the opening 11 is closed. A flange 13 is formed on both sides along the longitudinal direction and a guide groove 14 is formed so that the guide bar 42 of the pressing member 40 slides on both sides from the center of the lower surface of the flange 13 to the lower end thereof . A guide groove 15 is formed in the guide groove 14 so that the guide 43 slides. The upper end of the upper guide groove 15 is curved outward. The guide groove 14 has a guide groove bending portion 15a which is formed at an upper end of the guide groove 14 to the outside and a guide groove engaging jaw 19 formed immediately below the outer wall of the guide groove bending portion 15a I have,

The bottom surface of the flange 13 of the upper case 10 has a plurality of insertion protrusions 17 and 17a. The insertion protrusions 17a are narrower than the insertion protrusions 17 on the upper side.

The lower case 20 has protrusion insertion holes 27 and 27a corresponding to the insertion protrusions 17 and 17a of the upper case 10 and has the release spring fixing plate 22, (10). Therefore, the lower case 20 includes the opening 21, the flange 23, the guide bar groove 24, the guide groove 25, and the guide groove bend 25a symmetrically matching the upper case 10 And a discharge spring fixing plate 22 for inserting and fixing one end of the discharge spring 34 into the other end of the lower case 20.

A plurality of insertion protrusions 17 and 17a formed on the lower surface of the flange 13 of the upper case 10 are inserted into the lower surface of the flange 23 of the lower case 20, Are inserted into the plurality of protrusion insertion holes (27, 27a) formed. The number of the insertion protrusions 17, 17a and the projection insertion holes 27, 27a can be appropriately increased or decreased as necessary.

The needle body assembly 30 includes a needle body 39, a spring 34, and a bump spring 33. The needle body 39 includes an upper sliding plate 35a, a lower sliding plate 35b, a connecting plate 36 connecting between the upper sliding plate 35a and the lower sliding plate 35b, A lower extension 38 extending below the lower sliding plate 35b for inserting the bump spring 33 to insert the bushing spring 33, ). The lancet 32 protrudes and extends from the end of the lower extension 38 and is embedded within the lower extension 38 and the connection plate 36. The body of the lancet is cylindrical and its tip is conical, but it can be angular.

One end of the release spring 34 is inserted into the upper cylindrical extension portion 37 and the other end thereof is inserted and fixed to the release spring fixing plate 22 of the lower case 20. The bumper spring 33 is inserted into the lower extension 38 and extends longer than the lancet 32 to enclose the lancet protection cap 31 and the lancet protection cap The lancet protection cap 31 is integrally formed at the same time when manufacturing a part of the upper end of the protective cap 31 and a lower end of the lower extension 38 so that the lancet protection cap 31 can be easily torn off before use.

As shown in Figs. 2 to 4, the pressing member 40 has a cylindrical portion 41 and two guide bars 42 extending from the circumference of the upper portion thereof. The cylindrical portion 41 is vertically operated through a hole formed by the openings 11 and 21 of the upper case 10 and the lower case 20 and the lancet protective cap 31 is inserted into the cylindrical portion 41 The bump spring 33, and the lower extension portion 38 of the needle body.

As shown in Fig. 4, the two guide bars 42 each have an engaging portion 45 directed inwardly at the distal end thereof. A guide 43 in the form of a rectangular plate is formed in the middle thereof, An induction guide 44 is formed at the distal end. The guide (44) is inclined outwardly upward. The guide bar 42 slides along the guide grooves 14 and 24 formed on the lower surfaces of the flanges 13 and 23 of the upper and lower cases 10 and 20 and operates vertically. At this time, the rectangular plate-shaped guide 43 slides along the upper and lower guide grooves 15 and 25, and the guide guide 44 is slid along the guide grooves 15 and 25 formed to be inclined outward And is guided to the guide bends 13b and 23b of the guide grooves 15 and 25 and the engaging portion 45 is released to the outside to release the loading state of the needle body 39. [ The guide bar 42 must be flexible and flexible because it must be bent along the guide 44 at the guide bend 23b.

The guide bar 42 has the guide 44 inclined outwardly at the distal end thereof and the guide bar engaging jaw 47 formed between the guide 43 and the guide 44, Lt; / RTI >

As another embodiment of the present invention, a bump spring 33a made of silicone or an elastic member can be used instead of the coil-shaped bump spring 33, as shown in Fig.

Hereinafter, the principle of operation of the pressure-actuated disposable pain-killer according to the present invention will be described with reference to FIGS. 5 to 9. FIG.

FIG. 5 is a longitudinal sectional view illustrating the operation sequence of the pressure-activated disposable pain-killer according to the present invention to explain the principle of operation.

FIG. 5 (a) is a longitudinal sectional view showing a state before the pressurizing-operation disposable pain-killer according to the present invention operates.

5 (b) shows a state in which the lancet protective cap 31 is twisted and removed. The engaging portion 45 of the urging member 40 is caught by the lower portion 35c of the lower sliding plate 35b of the needle body 39 and is maintained in the loaded state by the compressive force of the urging spring 34. [ The upper and lower cases 10 and 20 are pressed toward the skin 50 so that the lower surface of the lower sliding plate 35b of the needle body 39, as shown in Figs. 5 (c) and 6, The guide bar 42 is guided by the guide grooves 14 and 24 of the upper and lower cases 10 and 20 and the guide 43 is guided by the guide groove 15 by the engaging portion 45 caught by the guide groove 35c, The instantaneous hooking portion 45 slides along the guide groove bending portions 15a and 25b which are extended toward the outside while the guide spring 44 is lifted up against the compressive force when the slide spring 34 is slid through the hooking body 34, The lower surface portion 35c of the lower surface 39 is detached. 5 (d), the bumper spring 33 inserted into the lower extension portion 38 of the needle body 39 is expanded and fired while the compression spring of the release spring 34 is released. As a result, The skin 50 is hit first.

Since the bump spring 33 disturbs the nerve around the skin at the moment it hits the skin 50, the lancet 32 pierces the skin 50 immediately after the bump spring 33, I can not feel it. This is like the principle that a nurse in a hospital inserts a needle immediately after hitting the skin with the palm of a hand to relieve pain when the injection is placed. 5 (e) and Fig. 7, the lancet 32 is held in contact with the skin 50 by the bumper spring 33, The bumper spring 33 is compressed by the force of inertia when the bumper spring 34 is blown and the bumper spring 34 is hitting the bumper 50 to penetrate the skin 50. At this time, the lancing needle 32 is moved to the depth at which the lancing needle 32 penetrates the skin 50 by the intensity correlation (the strength of the launch spring 34 is greater than that of the bump spring 33) between the launch spring 34 and the bump spring 33 Is determined. For example, if the launch spring 34 and the bumper spring 33 have the same compressive force, the launch spring 32 can not pierce the skin. Therefore, the launch spring 34 is designed to be stronger than the compressive force of the bumper spring 33 . The launching spring 34 is designed so that the lumen 32 is held at a desired depth in consideration of the force by which the bumper spring 33 is compressed by a predetermined length and the frictional resistance with the skin 50 even when the lancet 32 is pierced It must be designed to have a compressive force to enter. The type of the lancet 32 may vary depending on the application, and the strength of the lancet spring 34 is also determined according to the thickness of the lancet 32. If the lancet 32 is thick, a large force is required when the lancet 32 penetrates the skin 50 as much. The upper circumferential portion of the cylindrical portion 51 of the pressing member 40 is designed not to touch.

5 (f) and 8 show a state in which the lancet 32 exits the skin 50 and the pressing member 40 and the needle body 39 completely enter the upper and lower cases 10, 20 FIG. Here, the guide groove catching jaws 47 are engaged with the guide groove catching jaws 29 to prevent the needle body assemblies 30 from coming out of the openings 11 and 21. Since the pressing member 40 completely enters the upper and lower cases 10 and 20 and the engaging portion 45 is separated from the lower portion 35c in this manner, This is impossible.

Since the blood-collecting needle 32 is inserted into the case of the blood-collecting apparatus, the blood in the blood-collecting needle 32 is not likely to come into contact with the human being during the blood-collecting operation, It is possible to more reliably prevent the secondary infection of various diseases of the human body.

9 shows a state in which the lancing needle is in a standing state (c) of a lancing needle using silicon or an elastic member bump spring 33a in place of the coil-shaped bump spring 33 as another embodiment of the present invention, A state (d) when the spring 33a contacts the skin 50, a state (e) when the needle enters the skin 50 and a state of the elastic member bump spring 33a after use. The operation principle of the silicone or elastic member bump spring 33a is the same as the operation principle of the coil-shaped bump spring 33, and thus description thereof is omitted.

[Description of Symbols]

10 : upper case

11: aperture 13: flange

14: guide groove 15: guide groove

15a: guide groove bend 17, 17a:

19: guide groove jaw

20 : Lower case

21: opening 22: launch spring fixing plate

23: flange 24: guide bar groove

25: guide groove 25a: guide groove bent portion

27, 27a: projection insertion hole 29: guide groove catching jaw

30 : Sash Body Assembly

31: lancet protection cap 32: lancet

33: coil-shaped bump spring 33a: elastic member bump spring

34: launch spring 35a: upper sliding plate

35b: lower sliding plate 35c: lower surface portion

36: connecting plate 37: upper extension

38: lower extension 39: spine body

40: pressing member

41: cylindrical portion 42: guide bar

43: Guide 44: Induction guide

45: engaging portion 47: guide bar engaging jaw

50: Skin

Claims (5)

A pressurized-operation disposable pain killer comprising an upper case (10), a lower case (20), a needle body assembly (30) embedded in the upper and lower cases (10, 20) and a pressing member (40) The other end of the opening 11 is closed and the flange 13 is provided on both sides along the longitudinal direction. An upper case 10 in which a guide groove 14 is formed on both sides of the lower surface of the lower surface of the flange 13 and a guide groove 15 is formed in the guide groove 14; A flange 23, a guide bar groove 24 and a guide groove 25 symmetrically coinciding with the upper case 10 and having one end of a launch spring 34 inserted into the other end, A lower case 20 having a launch spring fixing plate 22 for fixing; A connecting plate 36 connecting the upper sliding plate 35a and the lower sliding plate 35b and a connecting plate 36 connecting the upper sliding plate 35a and the lower sliding plate 35b, A lower extension 38 extending below the lower sliding plate 35b for inserting the bump spring 33, a lower extension 38 extending below the lower sliding plate 35b for insertion of the bump spring 33, 38 and a blood collecting needle 32 inserted in the lower extension portion 38 and the connecting plate 36. The blood collection needle 32 is inserted into the upper extension portion 37, A bumper spring 33 inserted into the lower extension 38 and extending to enclose the lancet protective cap 31 and a lancet protective cap 31, (30); And The bumper spring 33 and the lower extension portion 38 of the needle body pass through a hole formed by the openings 11 and 21 of the upper case 10 and the lower case 20, Two guide bars 42 extending from the upper circumference of the cylindrical portion 51 and sliding along the guide bar grooves 14 and 24 of the upper and lower cases 10 and 20 at the center, The guide bar 42 includes a guide 43 having a predetermined length sliding along the upper and lower guide grooves 15 and 25, an induction guide 44 formed at the end of the guide bar 42, And a pressing member (40) having an engaging portion (45) formed inwardly at the distal end of the pressurizing member (40). 2. The blood collecting apparatus according to claim 1, wherein a lancet needle insertion hole is formed at an upper end of the lancet protection cap (31), and a portion of the upper periphery of the lancet insertion hole and a portion of the periphery of the lancet of the lower extension Wherein the pressure-operated disposable pain-free vascular grafting device is connected to the pressure-operated disposable vascular grafting vascular graft. 2. The apparatus according to claim 1, wherein guide groove bends (15a, 25a) formed in the upper end of the upper and lower ends of the upper and lower cases (10, 20) And the guide bar 42 is inclined upward and outward at the distal end of the guide bar 42 and the guide 43 And a guide bar hooking step (47) formed between the guiding hook (47) and the guiding guide (44). The connector according to claim 1, wherein a plurality of insertion protrusions (17) are provided on an upper surface of a lower surface of the flange (13) of the upper case (10), and insertion protrusions (17a) And a projection insertion hole 27a having a width narrower than that of the upper projection insertion hole 27 is formed at a lower portion of the flange 23 on the lower surface of the flange 23 of the lower case 20 Wherein the pressure-operated disposable pain-free vascular grafting device comprises: 2. The pressure-actuated disposable non-painful vascular device according to claim 1, wherein a bump spring (33a) of silicon or an elastic member is used in place of the coil-shaped bump spring (33).

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