WO2017191985A2

WO2017191985A2 - Disposable painless lancet and lancing device

Info

Publication number: WO2017191985A2
Application number: PCT/KR2017/004661
Authority: WO
Inventors: 최임철; 최정원; 최민기; 하호임
Original assignee: 최임철; 최정원
Priority date: 2016-05-02
Filing date: 2017-05-02
Publication date: 2017-11-09
Also published as: WO2017191985A3

Abstract

The present invention relates to a painless lancing device, and a lancet, the lancing device comprising: a casing part; a percussion part; and a bumper part, wherein the bumper part includes a needle body holder, a cylindrical bumper and a bump spring, and the lancet being used so as to be inserted into the lancing device. The painless lancet and the lancing device according to the present invention can be conveniently used as a needle is controlled to prick the skin only to a certain depth, and the skin around a pricking point is hit at the moment of pricking the skin, such that pain is dispersed and cannot be felt.

Description

Disposable painless needle and blood collector

The present invention relates to a disposable painless acupuncture needle and a blood sampling device for use by inserting the same. Specifically, before the needle penetrates the skin, the bump spring hits the skin in advance and disturbs the skin nerve, and at the same time, the needle stops the skin. After the puncture, the restoring force of the bump springs causes the needle to temporarily exit the skin, making the needle stay in the skin for a very short time, and allowing the needle to enter only a certain depth of the skin so that the patient can hardly feel the pain so that the pain can be ignored. And it relates to a disposable painless blood needle that can be adjusted to go deep or shallow needle and a blood collector for use by inserting it.

In oriental medicine, it is sometimes necessary to draw a small amount of blood as a sample to remove blood or remove wastes from cupping, or to measure blood glucose in veterinary medicine, to check blood types, or to perform other blood tests. In other words, the pain caused by the needle is a fear.

Human skin is largely classified into epidermis (about 0.2 mm), dermis (about 2-3 mm) and subcutaneous tissue. Subcutaneous tissue has arteries and veins, and the dermis has fine capillaries distributed like a mesh. Therefore, for blood collection, the needle only needs to enter the capillaries, i.e., just before the subcutaneous tissue. In the related art, since the needle directly penetrates the skin, the needle penetrates the subcutaneous tissue excessively too deeply and causes severe pain. Therefore, in the market, the blood collection needles are sold separately by setting the dimensions of varying lengths, and the user has to use the replacement as needed.

In order to solve this problem, Korean Patent No. 10-1360939 describes a bleeding needle in which blood is collected without entering a predetermined depth, which is a double bump (multi bump) having a larger cross-sectional area than the needle in the middle of the needle. ) To prevent going deep. However, the bleeding needle of this patent aims to relieve pain by shortening the needle length and making the needle shallow into the skin. Since the thickness of the skin varies depending on the skin condition of the person, the depth of the needle can not be controlled. There are disadvantages, and even if the needle is short, even if the needle enters directly into the skin, there is a problem that the pain can not be obtained a true painless effect.

Complex devices using projectiles, triggers, lasers, and the like are known to prevent needles from entering more than a certain depth, but disposable blood needles must be discarded after use, so they must be inexpensive and simple in structure.

In addition, even if the needle is a single use, there is always a risk of secondary infection of various diseases such as AIDS, hepatitis, if not careful after use.

The prior art regarding the blood collector is as follows. For example, Korean Patent No. 10-0932946 relates to a blood collector to secure straightness when the blood needle penetrates the skin, and has nothing to do with the function of eliminating pain.

In addition, Korean Patent No. 10-0912202 describes a lancet integrated cap and a painless blood collector. This patent describes the caps 210, 310, and 510 for accommodating the lancet body (bleeding body) 140, 220, 320, 520 as the striking means as in the present invention, but the cap, which is the striking means, must be spaced apart from the skin to hit the skin. There is a problem that is difficult to maintain a certain distance. Therefore, if the distance between the skin and the cap is too far beyond the proper distance, the saliva does not penetrate the skin, and conversely, if the distance between the skin and the cap is too close than the proper distance, there is no hitting effect. Therefore, the impact strength and the depth of penetration of the saliva will vary depending on the user of the blood collector, there is a problem that can not be expected to maintain the painless effect of the perfect painless effect. In addition, since the lancet body and the cap is made of a single body, only the lancet body should be discarded after use, but the disposal cost is increased as well as waste of resources.

The present inventors have studied to solve the above-mentioned problems, as a result of embedding or fixing a circular bump spring in the needle body so as to enclose the needle and protrude longer than the needle, momentarily striking the skin around the skin at the moment of stabbing the needle. By disturbing the skin nerve and making the needle stay on the skin for a very short time, you can not feel pain when the needle stabs, and because the round bump spring wraps and protects the needle, Not only can we solve the problem, but it also finds that when the bump spring is compressed, blood can penetrate the skin only as long as the needle protrudes out of the bump spring, thus preventing excessive saliva from entering the subcutaneous tissue. The present invention has been completed.

Therefore, an object of the present invention is to allow the patient to feel the pain almost by the needle only enters a certain depth of the skin when the needle penetrates the skin, it can also be adjusted to go deep or shallow, the blood is buried in the needle Provided is a simple and inexpensive disposable painless lancet to prevent blood from contacting the outside and a blood collector for use thereof.

The gist of the first embodiment of the present invention is

A casing portion comprising a cylindrical front cap, one side coupled to the front cap and the other side coupled to the rear cap, and a rear cap coupled to the sleeve; A percussion part embedded in the casing part to strike the skin by firing a bumper and a needle body; And a bumper part embedded in the casing part and connected to the percussion part by a connecting shaft,

A bumper part having a holder flange formed at an upper portion and a needle body formed under the holder flange and having a rectangular hole for moving the stop bar up and down, and having a needle body inserting hole for inserting a blood sampling needle at a lower portion thereof; The upper part is open to accommodate the needle body holder, a rectangular hole for inserting and inserting the blood needle along the cylindrical longitudinal direction is formed, the lower part is formed with a leach hole for entering the needle and the needle spring, Cylindrical bumper is formed with a stop bar insertion hole to be inserted through the stop bar; And a bump spring inserted between the lower surface of the holder flange of the needle body holder and the upper surface of the bumper.

According to another aspect of the present invention, one side of the needle body insertion hole is open to insert and insert the needle body from the side, and the upper and lower surfaces of the needle body insertion hole coincide with the upper and lower surfaces of the flat needle body. To provide a painless blood collection device, characterized in that consisting of a plane to combine.

According to still another aspect of the present invention, a lower end of the cylindrical body is opened to allow a needle and a needle spring of a blood collection needle to enter and exit, and a circular shape is formed at an upper end of the holder flange along a lower outer peripheral surface of the connecting shaft. A ring-shaped protrusion is formed toward the inside of the holder flange to be fastened to the binding groove, and an outer circumferential surface of the holder flange is provided with a screw for engaging with a spiral formed inside the depth adjusting member. It is.

According to still another aspect of the present invention, there is provided a painless blood collection device characterized by having a needle body fixing protrusion for fixing the needle body on the upper and lower surfaces of the needle body insertion hole, respectively.

According to still another aspect of the present invention, there is provided a needle body of a rectangular parallelepiped having protrusions formed at both ends in a longitudinal direction thereof, a protrusion for inserting and fixing a needle spring on one protrusion, and penetrating the protrusion. It is to provide a painless blood collector, characterized in that the needle is embedded in the needle body, and the blood collection needle having a fixed groove into which the needle body fixing projections provided on the upper and lower surfaces of the needle body insertion hole is mounted.

According to still another aspect of the present invention, the upper and lower ends are opened to adjust the skin penetration depth of the needle, and an upper inner circumferential surface is formed with a spiral for engaging with a screw formed on the outer circumferential surface of the holder flange of the needle body holder. The lower end is provided with an adjusting member flange, the upper portion is provided with a painless blood collection device characterized in that the upper portion has a depth adjusting member coupled to the screw formed in the holder flange on the upper portion of the cylindrical body of the needle body holder.

According to still another aspect of the present invention, there is provided a circular binding groove formed in a lower portion of the bumper portion having a ring-shaped protrusion formed in the inner side of the needle body holder flange and a connecting shaft flange for inserting and fixing the return spring. By binding, to provide a painless blood collection device characterized in that it is connected to the connecting shaft.

The gist of the second embodiment of the present invention is chimbody; A needle embedded in the center of one end of the needle body: and to provide a disposable painless bleeding needle comprising a bump spring embedded or fixed to one end of the needle body to surround the needle and extend more than the needle.

According to another aspect of the present invention, there is provided a spiral portion in which the needle body extends, one end of the needle is embedded in the center of the end of the spiral portion, and a spiral is formed therein so as to be screwed into the spiral portion. It is to provide a disposable painless blood collection needle comprising a nut-shaped spring body and one end of the bump spring is embedded or fixed to the outermost side of the spring body.

Yet another aspect according to the second embodiment of the present invention is to provide a disposable painless blood collection needle, characterized in that a silicone or elastic member is used instead of the bump spring.

Another aspect according to the second embodiment of the present invention is also a cylindrical front cap, a casing portion consisting of a sleeve coupled to the front cap and the other side is coupled to the rear cap and a rear cap coupled to the sleeve; A trigger for launching the chimbody in the holder; And a holder portion for holding and fixing the needle body, wherein the front cap of the casing portion has a tapered shape from the upper side to the lower side, and has a circular locking jaw therein to limit the downward movement of the lower surface of the holder. Is formed, the guide hole for guiding the needle body and the bump spring in a predetermined direction from the locking step to the lower end of the front cap is formed; And the holder portion is provided with a ring-shaped protrusion is formed in the upper portion to engage with the binding groove of the connecting shaft in the upper portion and the lower portion is provided with a cylindrical body formed with a single incision groove cut from the lower portion to the middle portion It is.

Painless acupuncture and blood collector according to the present invention can be adjusted to enter the needle only a certain depth of the skin can be used conveniently without replacing the needle of various dimensions, as well as disturb the skin nerve by hitting the skin around the moment of penetration Dissipate pain, and the needle springs out of the skin after the needle stabs the skin, causing the needle to momentarily exit the skin and shorten the needle staying on the skin for a very short time. There is no pain at all.

1 is a perspective view of a blood collector according to a first embodiment of the present invention.

2 is a perspective view of a blood collector according to the first embodiment of the present invention showing a state in which the front cap, the sleeve, and the rear cap forming the appearance are separated.

It is a longitudinal cross-sectional view which cut | disconnected the blood collector which concerns on 1st Embodiment of this invention at 90 degree | times.

4 is a longitudinal sectional view of a blood collector according to the first embodiment of the present invention.

Fig. 5 is a longitudinal sectional view of the blood collector according to the first embodiment of the present invention with the front cap, sleeve and rear cap omitted.

Fig. 6 is a diagram showing the internal structure of a blood collector according to the first embodiment of the present invention.

7 is a view showing the operating state of the trigger.

8 is a cross-sectional view of the bumper portion and the connecting shaft showing a state in which the bumper portion according to the first embodiment of the present invention is engaged with the connecting shaft.

9 is a view showing a state in which the needle body holder and the depth adjusting member of the bumper unit according to the first embodiment of the present invention are disassembled and the needle body holder and the connecting shaft are coupled.

It is an enlarged perspective view of the bumper part of the blood collector which concerns on 1st Embodiment of this invention.

It is an exploded perspective view of the bumper part of the blood collector which concerns on 1st Embodiment of this invention.

12 is a view showing a state in which the depth adjusting member and the needle body holder of the blood collection device according to the first embodiment of the present invention are coupled, and the needle body is inserted or disassembled in the needle body hole.

Fig. 13 is an enlarged longitudinal sectional view of the bumper section for showing the operating state of the blood collector bumper section according to the first embodiment of the present invention, in which Fig. 13 (a) shows a pre-launch state of the blood collection needle, and Fig. 13 (b) shows Immediately after launch, saliva penetrates the skin.

Fig. 14 is a perspective view of a disposable painless blood collection needle according to a second embodiment of the present invention, where Fig. 14 (a) shows a state before the bump spring is opened and Fig. 14 (b) shows bumps when the needle penetrates the skin. A diagram showing a state in which the spring is compressed.

15 is a perspective view of a disposable painless blood collection needle according to a second embodiment of the present invention.

It is a longitudinal cross-sectional view of the disposable painless collection needle which concerns on 2nd Embodiment of this invention.

It is an exploded perspective view of the disposable painless blood collection needle which concerns on 2nd Embodiment of this invention.

Fig. 18 is a perspective view of a disposable painless lancet needle in which a silicone or elastic member is used in place of a bump spring in a blood collector according to the second embodiment of the present invention, and Fig. 18 (a) shows a state before use in which the silicone or elastic member is extended. Figure 18 (b) is a view showing a state in which the silicone or elastic member is compressed when the needle penetrates the skin.

19 is a perspective view of a blood collector according to a second embodiment of the present invention showing a state in which the front cap, the sleeve, and the rear cap forming the external appearance are separated.

It is a longitudinal cross-sectional view of the blood collector which concerns on 2nd Embodiment of this invention.

It is a figure which shows the internal structure of the blood collector which concerns on 2nd Embodiment of this invention.

22 is a cross-sectional view of the holder portion and the connecting shaft showing a state in which the holder portion is engaged with the connecting shaft in the state where the blood collection needle is inserted according to the second embodiment of the present invention.

Fig. 23 is a view showing a structure in which a holder portion is coupled with a connection outlet in a state where a blood collection needle is inserted according to a second embodiment of the present invention.

It is a figure which shows the state in which the square part, the connection shaft, and the holder part of the blood collector which concerns on 2nd Embodiment of this invention were combined.

25 is a view showing a state in which the chimbody of Figure 24 is separated.

It is a figure which shows the operation state of a bump spring and a needle after the power generation (a) and the after (b) of a blood collection machine which concerns on 2nd Embodiment of this invention.

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

1 to 13 are diagrams of a blood collector according to the first embodiment of the present invention.

A blood collection device according to the first embodiment of the present invention, as shown in Figs. 1 and 2, the casing portion 100 that largely forms the appearance of the blood collection device; A trigger part 200 for launching the bumper part 300 including the bumper 320 and the needle body 341 to strike the skin; And a bumper part 300 having a bumper 320 that strikes the skin primarily and a needle body holder 310 that includes a needle spring 342 that strikes the skin secondly.

The bumper unit 300 continuously presses the skin while being in contact with the skin by the compression force of the bump spring 303 after the bumper 320 hits the skin by firing inertia, and maintains the instant but inertial force as it is. When the bump spring 303 is compressed due to the inertia force of the needle body holder 310 including a blood collection needle, the stop bar 323 seated on the top of the bumper 320 is the needle body holder 312. Move up to the tip of the adjustment member flange 351, which has been adjusted appropriately along the longitudinal hole 313 of the head), and the needle spring 342 of the needle body 341 of the blood collection needle 340 strikes the skin. Immediately after, the saliva 343 penetrates into the subcutaneous tissue of the skin, and then the entire bumper portion 300, that is, the bumper 320, the saliva body holder 310, the depth adjusting member 350, the stopper 323, and the cotter pin. 325, the needle body 341, and the needle spring 342 simultaneously return to the position before firing by the return spring 214. At this time, the stop bar 323 is up and down stroke only until the end of the screw adjustment position of the adjusting member flange 351, the depth of the needle 342 is adjusted.

1 shows a casing portion 100 as a perspective view of a blood collection device according to a first embodiment of the present invention. 1 and 2, the casing portion 100 is a cylindrical front cap 101, one side is coupled to the front cap 101 and the other side is coupled to the rear cap 103 sleeve 102 And a rear cap 103 coupled with the sleeve 102. The front cap 101, the sleeve 102 and the rear cap 103 is preferably screwed together. The rear cap 103 may be provided with a clip 104 for convenient carrying.

As shown in FIGS. 3 to 7, the trigger unit 200 includes a launch body 201, a launch spring 202, a launch hole 203, a square tube 204, and a launch body return spring 205. It is. And the launch body 201, as shown in detail in Figures 5 to 7, the pressing member 206, the firing flange 207 and the firing ball 203 formed on the tip of the pressing member 206 and the firing spring The hollow tetrahedron 208, which is open at one side for accommodating 202, is integrally formed. As shown in detail in FIG. 7, a rectangular hole 211 having an inclined upper side is formed at one side of the hollow tetrahedron 208 and a lower side thereof, of which two square holes 211 are formed. One upper side is inclined in opposite directions (ie '\' or '/'). The firing spring 210 is inserted into one side of the firing hole 203, and the trigger pin 212 penetrates and is coupled to the middle portion of the firing hole 203.

4 to 6, a rectangular hole (not shown) is formed in the upper portion of the square tube 204 so that the hollow tetrahedron 208 of the firing body 201 is inserted thereinto. The lower part is formed with a circular hole (not shown) to insert the columnar connecting shaft 213. In addition, the square tube 204, as shown in detail in Figures 6 and 7, to accommodate the half of the tetrahedral 208 of the connecting shaft 213, the bumper portion return spring 214 and the firing body 201. The 'a' shaped slits 215 are formed on one surface of the square tube 204 and the upper surface of the opposite surface, respectively, and these two 'a' shaped slits 215 are formed asymmetrically. have. That is, one lateral slit of the a-shaped slits 215 is 'a' shaped, and the other lateral slit is '+' shaped. The trigger pin 212 is fitted to the slits 215 to move.

A firing body return spring 205 for returning the firing body 201 is interposed between the upper end of the square tube 204 and the firing flange 207.

Referring to Figure 7, the operation of the triggering unit 200 will be described.

Before triggering, the trigger pin 212 is located at the lower side of the square hole 211 and the transverse slit of the 'b' shaped slit 215. Pressing the pressing member 206 by about 10 mm by hand to launch the bumper 301 and the needle body holder 302, the firing spring 210 connected to the firing hole 203 in the hollow tetrahedron 208 is pressed. The trigger pin 212 penetrates the firing hole 203 connected to the firing spring 210 and slides along the upper side of the square hole 211 which is inclined in the opposite direction. A pusher 203 is launched by being pushed along the hinting slit of the a-shaped slits 215 and momentarily falling below the longitudinal slit of the a-shaped slit 215. When the launching hole 203 descends to the end of the 's' shaped slit in the lateral slit, the firing force is transmitted to the bumper unit 300 through the connecting shaft 213 so that the bumper 301 hits the skin. When the pressing member 206 is pressed again, the firing body 201 and the firing ball 203 are in the transverse direction of the 's' shaped slit 215. The slit is returned to its original position before firing.

As illustrated in FIGS. 6 and 11, the bumper unit 300 is largely composed of a needle body holder 310, a bumper 320, and a bump spring 303.

The needle body 310, as shown in detail in Figure 9, consists of a holder flange 311 formed on the upper portion and a cylindrical body 312 formed under the holder flange 311, the cylindrical body ( A rectangular hole 313 is formed in the 312 so that the stop bar 323 moves up and down, and a needle body insertion hole 314 for inserting the blood sampling needle 340 is formed in the lower portion of the body 312.

One side of the needle body insertion hole 314 is open to insert and insert the needle body 341 sideways, as shown in Figure 11, the upper and lower surfaces of the needle body insertion hole 314 is flat needle It consists of a plane to engage with the top and bottom of the body. In addition, the lower end of the cylindrical body 312 is opened so that the needle 343 and the needle spring 342 of the blood collection needle 340 can enter and exit. The upper wall of the needle body insertion hole 314 is formed with a fixing protrusion 316 is fixedly inserted into the fixing groove 345 of the needle body 341. At an upper end of the holder flange 311, a ring-shaped protrusion 315 is formed toward the inside of the holder flange 311 so as to be bound to a circular binding groove 217 formed along the outer peripheral surface of the lower end of the connecting shaft 213. In addition, the outer circumferential surface of the holder flange 311 is formed with a screw for engaging with the screw formed inside the depth adjustment member 350.

As shown in FIGS. 8 and 9, the connecting shaft 213 is columnar, and has a connecting shaft flange 216 for inserting and fixing the return spring 214, and a lower portion thereof has an inner side of the holder flange 311. The binding groove 217 is formed to be bound with the ring-shaped protrusion 315 formed toward.

As illustrated in FIGS. 11 and 12, the top and bottom walls of the chimney body insertion hole 314 are formed with a chimney body fixing protrusion 316 for fixing the chimney body 341, respectively. The chimbody fixed protrusion 316 is preferably made of a metal or plastic bead.

As shown in detail in FIGS. 6 and 11, the bumper 320 is cylindrical, the upper part of which is open to receive the needle body holder 310, and inserts the blood sampling needle 340 along the cylindrical longitudinal direction. The rectangular hole 321 for inserting and removing is formed, and the leach-in hole 322 is formed in the lower end so that the needle | tip 341 and the needle | spring spring 342 can enter and exit. A stop bar insertion hole 324 is formed at the upper end of the bumper 320 so as to pass through the stop bar 323. As shown in detail in FIGS. 8 to 11, the stop bar 323 is fitted through the rectangular hole 313 and the stop bar insertion hole 324 of the needle body holder 310. Cotter pins 325 are fitted to both ends of the stop bar 323 so that the stop bar 323 is not separated from the bumper 320.

As shown in detail in FIGS. 5, 8, 10, and 13, the bump spring 303 may have a cylindrical body between the lower surface of the flange 311 of the needle body holder 310 and the upper surface of the bumper 320. 312) wrapped around it.

As shown in detail in FIGS. 11, 12, and 13, a blood collection needle 340 inserted into a blood collector according to a first embodiment of the present invention is a needle body 341, a needle spring 342, and a needle 343. The needle body 341 is formed at both ends of the needle body 341 along the longitudinal direction of the needle body 341, and is configured to be inserted in accordance with the shape of the needle body insertion hole 314. On the protrusion 344 on the needle 343 side of the needle body 341, a protrusion for inserting and fixing the needle spring 342 is formed to surround the needle 343. The needle 343 is embedded in the needle body 341. In addition, the top and bottom of the needle body 341 is formed with a fixing groove 345 is fastened to the fixing protrusion 316 provided on the upper and lower surfaces of the needle body insertion hole 314 of the needle body holder 310.

The blood collection needle 340 according to the first embodiment of the present invention is a single use, and the needle spring 342 completely surrounds the needle 343, thereby preventing secondary infection such as hepatitis and AIDS due to careless handling.

In the present invention, the depth adjusting member 350 may be provided to adjust the depth of needle penetration according to the human skin condition. 4, 5 and 13, the depth adjusting member 350 is cylindrical, the upper and lower ends thereof are opened, the upper inner peripheral surface of the screw formed on the holder flange 311 of the needle body holder 310 Spiral for coupling with the formed, and the lower end of the adjusting member flange 351 is formed.

3 and 4, the adjusting member flange 351 is formed in the holder flange 311, the upper portion of the depth adjusting member 350 in the upper portion of the cylindrical body 312 of the needle body holder (310). It is coupled with a screw to adjust the depth of penetration of the needle by turning the depth adjusting member 350 to the left and right. Therefore, to allow the needle 343 to penetrate deeper into the skin, the adjusting member flange 351 is turned to the right, and as a result, the stroke travel length becomes longer when the stop bar 323 moves along the rectangular hole 313. Will penetrate deeper into. Conversely, to allow the needle 343 to penetrate shallower into the skin, the adjusting member flange 351 is turned to the left, resulting in a shorter stroke length when the stop bar 323 moves along the rectangular hole 313. Penetrates the skin more shallowly.

Hereinafter, the operation of the bumper unit 300 of the blood collector according to the first embodiment of the present invention will be described with reference to FIGS. 3 to 5, 8, 11, and 13.

When the pressing member 206 of the triggering unit 200 is triggered by pressing the launch hole 203 hits the connecting shaft 213, the binding groove 217 of the connecting shaft 213 and a holder flange coupled thereto ( Force is transmitted to the needle body holder 310 through the ring-shaped protrusion 315 formed toward the inside of the 311. In this case, the bump spring 303 should have a strength sufficient to transmit the firing force to the bumper 320. The lower surface of the bumper 320 hits the skin by the force of this inertial force, and the bump spring 303 is subsequently compressed while the needle spring 342 of the needle body 341 inserted into the needle body holder 310 is inserted. The skin is hit, and immediately after that, the saliva 343 penetrates into the subcutaneous tissue of the skin, and then the entire bumper portion 300, that is, the bumper 320, the saliva spring 342 and the saliva 342 simultaneously return spring. Returned by (214). In the state in which the bumper 320 hits the skin and is in contact with the skin, the needle spring 342 inserted into the needle body holder 310 hits the skin, and in the state where the needle spring 342 is in contact with the skin. Immediately, saliva 343 penetrates the skin. At the same time, the stop bar 323 goes up along the rectangular hole 313 of the needle body holder 310 and stops by going to the lower end of the adjusting member flange 351, which is the limit that the needle 343 penetrates the skin. It is (the limit). At this time, the skin penetration depth of the needle 342 is controlled by allowing the stop bar 323 to move up and down only to the end of the screw adjustment position of the adjusting member flange 351. After the bumper 320 hits the skin, the needle spring 342 hits the skin again while the bumper 320 contacts the skin, and the needle 343 contacts the skin while the bumper 320 and the needle spring 342 contact the skin. After stabbing, the bumper 320, the needle spring 342, and the needle 343 are simultaneously separated from the skin by the bumper return spring 214. The needle spring 342 extends slightly longer than the needle 343, and is inserted and fixed to the protrusion 346 formed on the protrusion 344 while surrounding the needle 343.

As such, the bumper 320 hits the skin first, and the needle 343 pierces the skin at about the same time as the saliva spring 342 secondarily with a time difference of about 0.1 second, thereby completely eliminating the pain. do.

14 to 26 are diagrams of a blood collector according to a second embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, the blood collection needle which concerns on 2nd Embodiment of this invention, and the blood collection device for using the same are demonstrated.

As shown in Figure 14, the disposable painless blood collection needle according to the second embodiment of the present invention is a needle body (10); Needle 30 is embedded in the center of one end of the needle body 10: and the bump spring 20 is embedded in one end of the needle body 10 to surround the needle (30).

The material of the chimney body 10 is preferably plastic, it may be made of a cylindrical shape, it is preferable to have a skeletal structure as shown.

The needle 30 is embedded or fixed at the center of one end of the needle body 10. And as shown in Figure 14 (a), a portion of the bump spring 20 longer than the length of the needle 30 to surround the needle 30 at the center of one end of the needle body 10 is also Buried or fixed.

When producing products, the length of the needle can be standardized and released. In the drawings attached to the present specification, the tip of the needle 30 is conical but may be angled.

Figure 14 (b) shows the state of the disposable painless blood needle when the contact with the skin (40 in Figure 26) after being fired from the blood collector for blood collection, the instantaneous bump spring (20) The skin 40 is hit. At this time, due to the instantaneous blow applied by the bump spring 20, the skin 40 is primarily impacted to disturb the skin nerve and induce pain dispersion. After the needle pierces the skin, the restoring force of the bump spring causes the needle to momentarily exit the skin and shorten the time the needle stays on the skin. It also prevents the needle from going too far under the subcutaneous tissue. As the bump spring 20 is compressed by inertia during firing, the needle 30 enters the skin 40 while pressing the skin 40 harder, thereby reducing or offsetting the pain of the needle 30. This is similar to the principle that a nurse in a hospital puts an injection needle immediately after hitting the skin with the palm of the hand to relieve pain when giving an injection.

As shown in FIG. 26, the bump spring 20 is compressed immediately after hitting the skin 40 to determine the limit (limit) of the length that the needle 30 can enter the skin 40. ) Will enter the skin 40 only a certain length. Accordingly, the needle 30 is prevented from entering the skin 40 excessively more than necessary during blood collection.

In addition, the blood after the blood is buried in the needle 30, since the needle 30 is in the bump spring 20, the blood buried in the needle 30 does not have to be in contact with humans, such as AIDS, hepatitis It has a function to prevent secondary infection of various diseases.

15-17 are disposable painless bleeding needles having a spiral portion 11 and a spring body 21 which are means for adjusting the depth at which the needle 30 enters the skin 40 according to a second embodiment of the invention. It is shown.

One end of the needle body 10 has a cylindrical spiral portion 11 of a smaller size than the diameter of the needle body 10, one end of the needle 30 is embedded in the center of the end of the spiral portion 11 have. A nut-shaped spring body 21 is screwed into the spiral portion 11. Therefore, a spiral is formed inside the spring body 21, and one end of the bump spring 20 is embedded or fixed at the outermost side of the spring body 21 so that the needle is turned when the spring body 21 is turned clockwise. It will go deeper into this skin 40 and turn counterclockwise to get shallower.

As shown in FIG. 18, in the present invention, silicon or an elastic member 50 may be used instead of the bump spring 20 to replace the spring function.

The operation principle of the disposable painless blood collection needle in which silicon or the elastic member 50 is used instead of the bump spring 20 in the blood collector according to the second embodiment of the present invention is the same as the operation principle of the blood collection needle using the bump spring 20.

The present invention also provides a blood collector for use by inserting a disposable painless blood collection needle according to a second embodiment of the present invention.

A blood collection device according to a second embodiment of the present invention, as shown in Fig. 19, the casing portion 1100 that largely forms the appearance of the blood collection device; A triggering part 1200 for launching the needle body 10 in the holder part 1300; And it is composed of a holder portion 1300 for holding and fixing the needle body (10).

As shown in Figure 19, the casing portion 1100 is a front cap 1101, one side is coupled to the front cap 1101 and the other side is coupled to the rear cap 1103, and the sleeve And a rear cap 1103 coupled with 1102. The front cap 1101, the sleeve 1102 and the rear cap 1103 are preferably screwed together. The rear cap 1103 may be provided with a clip 1104 for convenient carrying.

20 and 21, the trigger portion 1200 is composed of a launch body 1201, a launch spring 1202, a launch ball 1203, a square tube 1204, and a launch body return spring 1205. It is. And the launching body 1201, as shown in detail in Figures 19 to 21, the pressing member 1206, the launch flange 1207 and the launch hole (1203) formed in the tip of the pressing member 1206 and the launch spring The hollow tetrahedron 1208, which is open at one side for accommodating 1202, is integrally formed. As shown in detail in FIG. 21, a rectangular hole 1211 having an inclined upper side is formed at one side of the hollow tetrahedron 1208 and a lower side thereof, of which two square holes 1211 are formed. One upper side is inclined in opposite directions (ie '\' or '/'). A launch spring 1210 is inserted into one side of the launch hole 1203, and a trigger pin 1212 penetrates and is coupled to an intermediate portion of the launch hole 1203.

In the blood collector according to the second embodiment of the present invention, the structure and operating principle of the trigger 1200 are as described above with reference to FIGS. 3 to 7 of the blood collector according to the first embodiment.

As shown in detail in FIGS. 20 and 22, the needle body holder part 1300 has a ring-shaped protrusion 1315 formed at the upper portion thereof so as to be engaged with the binding groove 1217 of the connecting shaft 1213. The lower part is open and has one incision groove 1312 cut from the lower part to the middle part. The incision groove 1313 serves to firmly and firmly hold the needle body (10).

As shown in FIG. 20, the front cap 1101 of the casing portion 1100 has a tapered shape toward the lower portion of the upper rotor, and the inner side of the cylindrical body 1312 to limit downward movement of the lower surface of the cylindrical body 1312. A circular locking jaw 1105 is formed in the guide hole for guiding the needle body 10 and the bump spring 20 in a predetermined direction from the locking jaw 1105 to the lower end of the front cap 1101. 1106 is formed.

20 and 21 will be described the operation of the holder unit 1300 and the blood collection needle of the blood collector according to the present invention.

Pressing and pressing the pressing member 1206 of the triggering portion 1200, the firing ball 1203 hits the connecting shaft 1213, the binding groove 1217 of the connecting shaft 1213 and the cylindrical body coupled thereto ( Force is transmitted to the holder portion 1300 through the ring-shaped protrusion 1315 formed toward the inside of the 1312. Then, the needle body 10, the bump spring 20 and the needle 30 inserted into the cylindrical body 1312 is delivered to the blood collection needle, the needle body 10 and the bump spring 20 of the blood collection needle guide hole After being guided through 1106, the bump spring 20 hits the skin, and subsequently the bump spring 303 is compressed and the needle 30 penetrates into the capillaries of the skin, and then the holder portion 1300 The cylindrical body 1312 and the whole blood collector are simultaneously returned to the state of power generation by the bump spring 20.

As described above, after the bump spring 20 hits the skin to disturb the skin nerve, the needle 30 stabs the skin with a slight parallax successively, and then the needle 30 by the restoring force of the bump spring 20. Since the time to stay in the skin 40 is very short, the pain is completely eliminated.

The operating principle when inserting and using a disposable painless blood collection needle in which a silicon or elastic member 50 is used instead of the bump spring 20 in the blood collector according to the second embodiment of the present invention is a principle of operation of the bump spring 20. Is the same as

The present inventors experimented directly with 50 adult men and women (mean age 42.5 years) in order to test the painlessness by using the blood collection device which concerns on this invention. The finger was launched into the skin using the blood collection device according to the present invention, and the blood flowed a little, but all 50 patients did not feel pain.

Claims

A casing portion consisting of a cylindrical front cap 101, one side coupled to the front cap 101 and the other side coupled to the rear cap 103, and a rear cap 103 coupled to the sleeve 102. 100; A percussion part 100 embedded in the casing part 100 to strike the skin by firing the bumper 320 and the needle body 341; And a bumper part 300 which is embedded in the casing part 100 and connected to the triggering part 100 by a connecting shaft 113.

The bumper part 300 is formed below the holder flange 311 and the holder flange 311 and has a rectangular hole 313 so that the stop bar 323 moves up and down and inserts the blood immersion needle 340 in the lower part. Chimbody holder 310 is formed for the needle body insertion hole 314; The upper end is open to accommodate the needle body holder 310, a rectangular hole 321 for inserting and inserting the blood sampling needle 340 is formed along the cylindrical longitudinal direction, the lower end is a needle 341 and the needle spring A cylindrical bumper 320 having a leach-in and out-hole 322 through which the 342 enters and closes, and a stop bar insertion hole 324 is formed at the upper end thereof so as to pass through the stop bar 323; And a bump spring (303) inserted between the lower surface of the holder flange (311) of the needle body holder (310) and the upper surface of the bumper (320).
The method of claim 1, wherein one side of the needle body insertion hole 314 is open to insert and insert the needle body 341 from the side, and the upper and lower surfaces of the needle body insertion hole 314 is flat needle body 341 Painless blood collector, characterized in that consisting of a plane to coincide with the top and bottom of the).
According to claim 1, wherein the lower end of the cylindrical body 312 is opened so that the needle 343 and the needle spring 342 of the blood collection needle 340, the upper end of the holder flange 311 the connection The ring-shaped protrusion 315 is formed toward the inside of the holder flange 311 so as to be bound to the circular binding groove 217 formed along the outer peripheral surface of the lower end of the shaft 213, and the depth is adjusted on the outer peripheral surface of the holder flange 311. Painless blood collector, characterized in that the screw is formed for engaging with the spiral formed inside the member (350).
The painless blood collection device according to claim 1, wherein the upper and lower surfaces of the chimney insertion hole (314) have a chimney body fixing protrusion (316) for fixing the chimney body (341).
The projection 346 of claim 1, wherein the needle body 342 of the rectangular parallelepiped having the protrusions 344 formed at both ends along the longitudinal direction, and the needle spring 342 inserted into and fixed on the one protrusion 344. ), A fixing groove into which the needle 343 embedded in the needle body 341 and the needle body fixing protrusion 316 provided on the upper and lower surfaces of the needle body insertion hole 314 are inserted through the protrusion 346 ( Painless blood collector, characterized in that equipped with a blood collection needle 340 having a.
According to claim 1, wherein the upper and lower ends are opened to adjust the skin penetration depth of the needle 343, the upper inner circumferential surface is a spiral for engaging with the screw formed on the outer circumferential surface of the holder flange 311 of the needle body holder 310 It is formed, the lower end of the adjustment member flange 351 is formed, the upper part is a depth adjusting member coupled to the screw formed on the holder flange 311 in the upper portion of the cylindrical body 312 of the needle body holder 310 Painless blood collector, characterized in that it has a (350).
The connection shaft flange 216 of claim 1, wherein the bumper part 300 includes a ring-shaped protrusion 315 and a return spring 214 which are formed toward the inner side of the needle body holder flange 311. Painless blood collection device, characterized in that connected to the connecting shaft 213 by the circular binding groove 217 formed in the lower portion.
Chimney body 10; Needle 30 embedded in the center of one end of the needle body (10): and the bumps embedded or fixed at one end of the needle body 10 to surround the needle 30 and extend more than the needle 30 Disposable painless bleeding needle comprising a spring (20).
According to claim 8, The needle body (10) has an extended spiral portion 11, one end of the needle 30 is embedded in the center of the end of the spiral portion 11, the spiral portion 11 And a nut-shaped spring body 21 having a spiral formed therein so as to be screwed together, and one end of the bump spring 20 is embedded or fixed to the outermost side of the spring body 21. Painless bleeding.
10. The disposable painless blood collection needle according to claim 8 or 9, wherein silicone or elastic member (50) is used instead of bump spring (20).
A casing portion comprising a cylindrical front cap 1101, one side coupled to the front cap 1101 and the other side coupled to the rear cap 1103, and a rear cap 1103 coupled to the sleeve 1102. (1100); A trigger portion 1200 for launching the needle body 10 in the holder 1312; And in the blood collection device consisting of a holder portion 1300 for holding and fixing the needle body 10,

The front cap 1101 of the casing portion 1100 has a shape that is tapered gradually from the top to the bottom, a circular locking jaw 1105 is formed on the inner side to limit the downward movement of the lower surface of the holder 1312 A guide hole (1106) for guiding the needle body (10) and the bump spring (20) in a predetermined direction from the locking step (1105) to the lower end of the front cap (1101); In addition, the holder part 1300 has a ring-shaped protrusion 1315 formed at the upper part to be engaged with the binding groove 1217 of the connecting shaft 1213, and a lower part thereof is opened, and one incision cut from the lower part to the middle part thereof. A blood collection device, characterized in that it has a cylindrical body (1312) formed with a groove (1313).