CN100512753C - Needle insertion device - Google Patents

Abstract

The present invention provides a lancing apparatus (X1) for moving a lancing element (11) in a lancing direction (N1) from a wait position to a lancing position to lance an intended portion with the lancing element (11) . The lancing apparatus (X1) includes a first member (31) which is reciprocally movable in the lancing direction (N1) and in a retreating direction (N2) which is opposite from the lancing direction (N1), and a second member (32) which moves along with the lancing element (11) and performs reciprocal movement in the lancing direction (N1) and the retreating direction (N2) in accordance with the movement of the first member (31).

Description

Sting device

Technical field

The sting device of utilization the present invention relates to when skin is taked blood or tissue, wait.

Background technology

As sting device, for example person shown in Figure 33 A～Figure 33 B is arranged.The bounce that sting device 90 shown in these figure constitutes by bung flange spring 900 makes lancet seat 901 move together with lancet 902, so that skin puncture person.As shown in Figure 33 A, sting device 90 constitutes the stage portion 905 that is locked in housing 904 by the fixing pawl 903 that makes lancet seat 901, and bung flange spring 900 becomes the state of accumulating bounce.On the other hand, the releasing of lock-out state as shown in Figure 33 B, can be passed through the push cap for brush 906, makes the service portion 907 of this operation cap for brush 906 act on fixing pawl 903, and releasing fixes the fixing state of pawl 903 and carries out.In the occasion of the state of unlocking, as shown in Figure 33 C, the bounce of bung flange spring 900 acts on lancet seat 901, and lancet seat 901 moves on puncture direction N1 together with lancet 902, and lancet 902 pierces through skin.

As sting device and then constitute in addition and utilize cam mechanism, make the lancet person that pierces through skin (for example opening clear 64-42010 communique and Japan speciallys permit communique the two No. 702374) with reference to Japan is real.

Japan opens disclosed sting device in the clear 64-42010 communique in fact, as shown in Figure 34 A～Figure 34 C of the application, be to constitute the back and forth movement that rotatablely moving of cam body 910 is transformed into lancet support 911, lancet support 911 is moved and skin puncture person together with lancet 92.As shown in Figure 34 A, in sting device 91,, accumulate at bung flange spring 913 that cam body 910 becomes the state that is fixed under the state of bounce as the puncture waiting state.By operation rotating lever 914, the stationary state of cam body 910 is disengaged as shown in Figure 34 B and Figure 34 C from this state.Whereby, cam body 910 is the center rotation with axle 915.On the other hand, on cam body 910, be provided with the cam path 916 of V font, in this cam path 916, cooperating and lancet support 911 incorporate fitting pins 917.Thereby in the occasion of cam body 910 rotations, fitting pin 917 moves along cam path 916.Whereby, lancet support 911 on one side in pilot hole 918 guiding on one side at puncture direction N1 with keep out of the way to come and go on the direction N2 and move, this lancet support 911 together with lancet 912 in puncture with keep out of the way to come and go on direction N1, the N2 and move.

In sting device 91 and then be provided with and block member 919, so that the unexpected lancet 912 when preventing non-puncture outstanding and improve safety, and obtain suitable paracentesis depth.This blocks member 919 is to comprise sliding component 919A and the shutter 919B person moving with this sliding component 919A one.Sliding component 919A and shutter 919B are loaded towards puncture direction N1, constitute by pushing sting device 91 under the state of shutter 919B being run into skin, and they are moved towards keeping out of the way direction N2.

On the other hand, specially permit the sting device described in the communique the two No. 702374, as shown in Figure 35 of the application, being to accommodate driving member 921 and lancet seat in the inside of housing 920, is that the rotation that constitutes by driving member 921 makes lancet seat 922 puncture and keep out of the way mobile person on direction N1, the N2.Driving member 921 closely is contacted with the inner face of lancet seat 922 and can rotates in a circumferential direction, is held in housing 920 via 923 on bung flange spring.On driving member 921, be provided with the drive pin 925 of the driving cam 924 that is used for being matched with lancet seat 922.Driving cam 924, comprise as shown in Figure 36 and make lancet seat 922 (with reference to Figure 35) first section 924a that drive pin 925 moves when mobile on puncture direction N1, make lancet seat 922 (with reference to Figure 35) second section 924b that drive pin 925 moves when mobile on keeping out of the way direction N2, and in order to accumulate bounce the 3rd section 924c that drive pin 925 moves when twisting bung flange spring 923 (with reference to Figure 35).

As shown in Figure 35, driving member 921 and then be connected in the closed loop 926 of the leading section that is located at housing 920 constitutes by making closed loop 926 rotations that the drive pin 925 of driving member 921 is moved in a circumferential direction, twists bung flange spring 923.And driving member 921 constitutes bung flange spring 923 and is twisted by unillustrated fixed mechanism, can accumulate under the state of bounce fixing at bung flange spring 923.On the other hand, the releasing of the stationary state of driving member 921 can be undertaken by pressing operation button 927.

In the sting device 90 shown in Figure 33 A～Figure 33 C, the 900 ground bounce transmission of sieve spring are led lancet seat 901 after, lancet seat 901 moves independently with sieve spring 900.Therefore, in sting device 90, between lancet seat 901 and housing 904, be provided with bigger gap, so that successfully carry out moving of lancet seat 901.As a result, in sting device 90, unlock state and lancet seat 901 is moved on puncture direction N1, and lancet seat 901 and lancet 902 swing easily, be easy to generate rocking of lancet 902 during puncture.Because of this rocks, just give unnecessary misery to user.

Lancet seat 901 mobile being restricted in sting device 90 and then when lancet seat 901 is interfered stage portion 908 in housing 904 to puncture direction N1.Therefore, in when puncture, the impact of lancet seat 901 and the interference of stage portion 908 of resulting from propagates into skin, and this impact itself is with pain or unplessantness displeasure, and this exopathogenic factor impacts and makes vibration pass to lancet 902, and this becomes the reason that increases the pain when puncturing.Therefore, produce impulsive sound when interfering, this impulsive sound makes feels pain more strongly, and impulsive sound interacts with puncture pain in addition, gives bigger unplessantness displeasure probably.

In the sting device 91 shown in Figure 34 A～Figure 34 C, because moving of lancet support 911 by sliding eye 918 guiding, so be not easy to produce rocking of lancet 912, because make lancet support 911 back and forth movements by cam mechanism, so impact that can be not big to skin-communication during puncture perhaps produces big impulsive sound.But, in sting device 91, be provided with because considering the safety in non-when puncture and block member 919, so the device formation is complicated, be disadvantageous to manufacturing cost.In addition, block member 919 and constitute by the operation of user Accommodation in the pushing force of blocking member 919, so that adjust paracentesis depth.Therefore, the too small occasion paracentesis depth of the pushing force that will act on too small and less than enough blood, on the contrary, excessive and with unnecessary pain at the excessive occasion paracentesis depth of the pushing force that is acted on.Thereby in sting device 91, the adjustment of paracentesis depth is difficult to, and also exists the inconvenient such problem of using.

In the sting device shown in Figure 35 and Figure 36 92, constitute making closed loop 926 rotation back operating operation buttons 927 lancet seat 922 is moved on the puncture direction.Thereby sting device 92 usefulness one-handed performances are difficult, and operability is bad.In addition, the occasion of using twisting sieve spring 923, load puts on the end of sieve spring 923 easily, also exists short such problem of life-span of sieve spring 923.In order to address this problem, produce the inflexible necessity that improves sieve spring 923, just unfavorable in this occasion to cost.

Summary of the invention

The object of the invention is to provide a kind of pain or unplessantness displeasure when reducing puncture, and good operability, and the sting device that can advantageously make cost.

By sting device provided by the present invention, be that piercing element is moved from the puncture direction of holding fix to puncture position, pierce through the sting device that the object position is used by above-mentioned piercing element, comprising above-mentioned puncture direction and as and rightabout first member of keeping out of the way back and forth movement on the direction of this puncture direction, with with above-mentioned piercing element one body action, and link in above-mentioned first member and at above-mentioned puncture direction and above-mentioned second member that carries out back and forth movement on the direction of keeping out of the way.

Constitute first member can be between for example first allocation and second allocation back and forth movement, on the other hand second member for example at first member during carrying out the back and forth movement of one-period between first allocation and second allocation, between the 3rd allocation and the 4th allocation, carry out the back and forth movement of one-period.In this occasion, second member preferably constitutes at first member during translatory movement between first allocation and second allocation, carries out fold return motion.

Piercing element constitutes and for example be positioned at puncture position when second member is positioned at the 3rd allocation, is positioned at holding fix when the zone line of second member between the 3rd allocation and the 4th allocation.Piercing element preferably constitute first member keeping out of the way on the direction move during, move to puncture position from holding fix.

In optimum embodiment, second member constitutes when first member carries out the back and forth movement of one-period, carries out and 90 ° of first member phase shiftings or 90 ° the back and forth movement of one-period roughly.

Sting device of the present invention preferably also comprises connecting between first member and second member, is used for the motion converter of first member is become the 3rd member of the back and forth movement of second member.

The 3rd member is matched with first member as the rotating shaft that comprises fixed-site, and can rotating shaft be first movable part of center rotation, and be matched with second member, can be that the second movable part person of center rotation constitutes with the rotating shaft.In this occasion, first member is as for example being used for allowing the first auxiliary section person who rotatablely moves of first movable part and constituting, and second member is used for allowing the second auxiliary section person who rotatablely moves of second movable part and constitutes as for example having.

At least one side in the middle of first and second auxiliary sections is taken as to have being orthogonal to puncture and keeping out of the way the orthogonal direction of direction or the rake person that tilts of orthogonal direction roughly.The both ends of rake preferably constitute as be fixed in the line part person who extends on above-mentioned orthogonal direction.In addition, the movable part that is matched with the rake in the middle of first and second movable parts preferably constitutes at piercing element and moves at rake when holding fix moves to puncture position, is moving at line part when moving along keeping out of the way direction from puncture position on the other hand.

But,, and the second member back and forth movement is not limited especially as long as the shape of first and second auxiliary sections can allow rotatablely moving of first and second movable parts.

In optimum embodiment, first member constitutes when piercing element is positioned at holding fix, carries out fixed-site under the state that is loaded, and moves by loading force when stationary state is removed.

The 3rd member also can constitute and for example pass through swing, the motion converter of first member is become the back and forth movement of second member.

The 3rd member of this occasion is matched with first member as having for example swinging axle, can be first movable part of center swing with the swinging axle, and be matched with second member, can be that the second movable part person of center swing constitutes with the swinging axle.

First member for example is matched with first movable part as having, and is used for the position that cooperates according to this first movable part, limit the 3rd member motion the auxiliary section person and constitute.In this occasion, the auxiliary section preferably has makes the swing of the 3rd member, the rake that second member is moved on the puncture direction.The auxiliary section preferably has makes the swing of the 3rd member, make second member at the rake that appends of keeping out of the way mobile usefulness on the direction, also can have and do not make the second and the 3rd member in puncture with keep out of the way on the direction and to move, make first member in puncture or keep out of the way the line part of mobile usefulness on the direction.

Sting device of the present invention can also as also be included in make piercing element pierce through the object position after, second member is constituted the elastic component person who keeps out of the way mobile usefulness on the direction.

First movable part also can be used as to have the first and second pin persons and constitutes.In this occasion, the auxiliary section also can be used as to have second member Yi Fangchu that first pin cooperates when puncture is mobile on the direction there being make second member keeping out of the way the rake person that second pin cooperates when mobile on the direction and constitutes.First member also can be used as to have at this first member to be kept out of the way on the direction when mobile above-mentioned, the auxiliary section person who appends that second pin cooperates selectively and constituting.First pin for example becomes bigger than the second pin diameter.In this occasion, the auxiliary section width dimensions that appends is set less than the diameter ground of the auxiliary section and first pin.

First member also can constitute by making the swing of the 3rd member intersecting at puncture and keep out of the way to move on direction crisscross, and second member is moved keeping out of the way on the direction.More particularly, also can be taken as sting device of the present invention and also comprise and be used for control member that first member is moved, first member and control member have the inclined plane, move on the inclined plane of first member on the inclined plane that can constitute by making control member, and first member moves on crisscross above-mentioned.Sting device of the present invention also can be used as and also comprises with first member in puncture or keep out of the way the guider that one moves on the direction, and connect between this guider and above-mentioned first member, be used for intersecting at above-mentioned puncture and keeping out of the way the elastic component person of loading on direction crisscross and constitute to above-mentioned first member.

Description of drawings

Fig. 1 is the cutaway view of the sting device of expression first embodiment of the invention.

Fig. 2 is the state of second sleeve pipe and lancet is taken off in expression from the sting device shown in Fig. 1 a cutaway view.

Fig. 3 is the cutaway view of the III-III line along Fig. 1.

Fig. 4 is the overall perspective view of link component.

Fig. 5 is the front view that is used for illustrating the action of link component.

Fig. 6 A and Fig. 6 B are used for the inside constitutor of the sting device shown in the key diagram 1, are to omit the part of composed component and the cutaway view that illustrates.

Fig. 7 is the overall perspective view of lancet seat.

Fig. 8 A is the cutaway view along VIII-VIII of Fig. 7, and Fig. 8 B is the cutaway view that is illustrated in the state that second member that makes the lancet seat among Fig. 8 A moves.

Fig. 9 is the overall perspective view of first member of the lancet seat shown in the presentation graphs 7.

Figure 10 is the overall perspective view of second member of the lancet seat shown in the presentation graphs 7.

Figure 11 is the overall perspective view of the oscillating structural member of the latch-release mechanism in the sting device shown in the presentation graphs 1.

Figure 12 be used for illustrating oscillating structural member stationary state cutaway view and amplify the cutaway view of its major part.

Figure 13 A～Figure 13 C is the actor that is used for illustrating latch-release mechanism, is to omit the part of composed component and the partial sectional view that illustrates.

Figure 14 A and Figure 14 B are the partial sectional views that is used for illustrating the lancet output mechanism.

Figure 15 A～Figure 15 D is used for the cutaway view of signal of the puncture action in the sting device shown in the key diagram 1.

Figure 16 is the curve chart of the change in location of movable plate in the expression puncture action and lancet seat.

Figure 17 is a cutaway view of representing sting device second embodiment of the invention.

Figure 18 is another cutaway view of the sting device shown in Figure 17.

Figure 19 is the overall perspective view of the link component in the sting device shown in Figure 17 and Figure 18.

Figure 20 A and Figure 20 B are the inside constitutors that is used for illustrating the sting device shown in Figure 17, are to omit the part of composed component and the cutaway view that shows.

Figure 21 is the overall perspective view of the movable plate in the sting device shown in Figure 17 and Figure 18.

Figure 22 is the perspective view that amplifies the major part of the movable plate shown in expression Figure 21.

Figure 23 is the overall perspective view of the lancet seat in the sting device shown in Figure 17 and Figure 18.

Figure 24 A～Figure 24 D is the cutaway view that is used for illustrating the signal of the puncture action in the sting device shown in Figure 17 and Figure 18.

Figure 25 A～Figure 25 E is the cutaway view that is used for illustrating according to the sting device of the 3rd embodiment of the present invention.

Figure 26 is the cutaway view according to the sting device of the 4th embodiment of the present invention.

Figure 27 is the overall perspective view of the link component in the sting device shown in Figure 26.

Figure 28 is the perspective view that amplifies the major part of the movable plate in the sting device shown in expression Figure 26.

Figure 29 A～Figure 29 E is the cutaway view that is used for illustrating the signal of the puncture action in the sting device shown in Figure 26.

Figure 30 A～Figure 30 F is the cutaway view that is used for illustrating the signal of the puncture action in the sting device shown in Figure 26.

Figure 31 A～Figure 31 D is the cutaway view that is used for illustrating the signal of moving according to the sting device and the puncture of the 5th embodiment of the present invention.

Figure 32 A～Figure 32 D is the cutaway view that is used for illustrating the signal of moving according to the sting device and the puncture of the 5th embodiment of the present invention.

Figure 33 A～Figure 33 C is the cutaway view of one of the existing sting device of expression example.

Figure 34 A～Figure 34 C is another routine cutaway view of the existing sting device of expression.

Figure 35 is another routine cutaway view of the existing sting device of expression.

Figure 36 is the partial top view that is used for illustrating the driving cam in the sting device shown in Figure 35.

The specific embodiment

With regard to the present invention, describe as first～the 5th embodiment.Describe particularly with reference to accompanying drawing.

At first, with regard to first embodiment of the present invention, describe with reference to Fig. 1～Figure 16.

As shown in fig. 1, sting device X1 is in order to make lancet 1 move to puncture position (lancet is in the drawn position of imaginary line among Fig. 1) and skin puncture from holding fix (Fig. 1 lancet 1 by the drawn position of solid line), blood to be flowed out and the user from skin.This sting device X1 comprises housing 2, lancet travel mechanism 3, lancet cancel system 4 and lancet output mechanism 5.

Lancet 1 is the element that skin puncture is used as mentioned above, is to remain in lancet seat 32 described later, by the person of being moved that moves of this lancet seat 32.This lancet 1 has the form that puncture needle 11 is given prominence to from main part 10, for example constitutes as disposable product.Main part 10 forms cylindric by resin etc.Puncture needle 11 inserts shaping for example by metallic to main part 10.

Housing 2 is that regulation is accommodated the space person that various elements are used, and is made of first and second sleeve pipes 21,22.

First sleeve pipe 21 has protuberance 21a and first to the 3rd peristome 21b～21d.Protuberance 21a is fastened in movable plate 31 usefulness in the lancet travel mechanism 3.The first peristome 21b is the mobile person who is used for allowing the operating portion 31B in the movable plate 31.The second peristome 21c is the mobile person who is used for allowing the following pushed section 42 in the latch-release mechanism 4.The 3rd peristome 21d is the mobile person who is used for allowing the operating portion 51 in the lancet output mechanism 5.

Second sleeve pipe, 22 both ends are open so that allow moving of lancet seat 32 described later.This second sleeve pipe 22, the leading section to first sleeve pipe 21 as shown in Fig. 1 and Fig. 2 is installed and removed freely.Therefore, taking off under the state of second sleeve pipe 22 from first sleeve pipe 21, can be easily 32 installings of 1 pair of lancet seat of lancet.

As shown in Figure 3, lancet travel mechanism 3 comprises link component 30, movable plate 31, and lancet seat 32.This lancet travel mechanism 3 constitutes the back and forth movement that the back and forth movement of movable plate 31 is transformed into lancet seat 32 via the circular motion of link component 30.

As shown in Fig. 3 and Fig. 4, link component 30 is to be used for linking when movable plate 31 moves making lancet seat 32 persons of moving in its action.This link component 30 comprises the first movable pin 30a, the second movable pin 30b, steady pin 30c, the first arm member 30A and the second arm member 30B.

The first movable pin 30a is used for being matched with movable plate 31, and connects the first and second arm member 30A, 30B person each other.More particularly, the first movable pin 30a is at end 30Aa, the 30Ba place of the first and second arm member 30A, 30B, and end 30Ab, 30Bb that the state that staggers with the mutual alignment is fixed the first and second arm member 30A, 30B are each other.

The second movable pin 30b is matched with the lancet seat, and is at the 30Ab place, end of the first arm member 30A, outstanding in the opposite direction with the first movable pin 30a.

Steady pin 30c is used for to housing 2 stationary links member rotatably, and is at the 30Bb place, end of the second arm member 30B, outstanding in the opposite direction with the first movable pin 30a.

In link component 30, sell 30a～30c as shown in Figure 5 each other via the first and second arm member 30A, the interconnective result of 30B, pin 30a～30c position relation each other is prescribed.More particularly, the first and second movable pin 30a, 30b equate that to the distance of steady pin 30c the second movable pin 30b is being on the circumference of center of rotation with steady pin 30c on the other hand, and the first movable pin 30a position is staggered 45 °.Therefore, if with steady pin 30c is that center of rotation makes link component 30 rotations, then the first and second movable pin 30a, 30b are that circular motion is carried out at the center with steady pin 30c, phase place 45 ° the sine wave curve that staggers is mutually drawn out in the puncture of the first and second movable pin 30a, 30b and keep out of the way track on direction N1, the N2 as shown in Figure 16.

Movable plate 31 as shown in Fig. 6 A and Fig. 6 B, is can and keep out of the way mobile person on the direction N2 at puncture direction N1 to housing 2, and housing 2 is connected via bung flange spring Sp.This movable plate 31 comprises groove 31A, operating portion 31B and the 31C of hook portion.

Groove 31A is the mobile person who allows the first movable pin 30a in the link component 30 (with reference to Fig. 3).This groove 31A is included in puncture and keeps out of the way side upwardly extending inclination slot part 31Aa that direction N1, N2 tilt and the straight line slot part 31Ab that is fixed in the both ends of inclination slot part 31Aa.The first movable pin 30a, from Figure 15 A～Figure 15 D and Figure 16 as can be seen, at least lancet 1 moves among inclination slot part 31Aa when holding fix moves to puncture position, and lancet 1 moves among straight line slot part 31Ab when keeping out of the way direction N2 and move from puncture position at least on the other hand.

In the formed movable plate 31 of this groove 31A, the position in the housing 2 is by the puncture of the first movable part 30a itself and keep out of the way position on direction N1, the N2, and is definite with the position of the first movable part 30a among the groove 31A.More particularly, as shown in Figure 16, the puncture of the position of the movable plate 31 first movable part 30a when being benchmark with steady pin 30c and keep out of the way position on direction N1, the N2, the puncture of the first movable part 30a among the groove 31A when being benchmark with center with groove 31A and the difference of keeping out of the way the position on direction N1, the N2 obtain.Therefore, movable plate 31 when link component 30 is rotated on clockwise, link component 30 revolve turn around during, between free position (top dead-centre) and latched position (bottom dead centre), be the center back and forth movement with steady pin 30c.

As shown in Fig. 6 A and Fig. 6 B, operating portion 31B be armrest is moving movable plate 31 is moved when the user.This operating portion 31B, its part is projected into the outside via the first peristome 21b of housing 2, and allows to puncture and keep out of the way moving of direction N1, N2 because of the first peristome 21b.

The 31C of hook portion is used for being matched with the protuberance 21a of housing 2 and movable plate 31 is locked in housing.As Fig. 6 B well shown in, what movable plate 31 constituted that when bung flange spring Sp the is in contraction state hook 31C of portion is positioned at protuberance 21a keeps out of the way direction N2 side.In contrast, movable plate 31, as among Fig. 6 A well shown in, the 31C of hook portion is being matched with under the state of protuberance 21a, bung flange spring Sp is stretched, and loads towards keeping out of the way direction N2 side.

As shown in Fig. 7 and Fig. 8, lancet seat 32 is to be used for keeping lancet 1 (with reference to Fig. 1), makes this lancet 1 person of moving, and is same with movable plate 31 (with reference to Fig. 6), can and keep out of the way on direction N1, the N2 and move in puncture.This lancet seat 32 comprises can the first and second moving relatively mutually members 33,34.

First member 33, as shown in Fig. 7～Fig. 9, comprise the seat portion 35 that is used for keeping lancet 1 (with reference to Fig. 1), to first flat part 36 of movable plate 31, and face toward second flat part 37 that first flat part 36 is provided with via link component 30 (with reference to Fig. 3 to Fig. 5) connection.

Seat portion 35 comprises and is used for accommodating the resettlement section 38 of lancet 1 (with reference to Fig. 1) and is used for limiting the constriction 39 that move of lancet 1 (with reference to Fig. 1) towards radial direction.Resettlement section 38 forms the halfpipe of the interior shape of the surface configuration with imitation lancet 1, has a pair of spigot surface 38A and the 38B of wall portion.From Fig. 8 A and Fig. 8 B as can be seen, spigot surface 38A is the mobile person of the 34A of domes portion of guiding second member 34 described later.On the 38B of wall portion, be provided with breach 38b.Breach 38b is used for leading the pin 34b person of moving of second member 34 described later, and place, 38 end forms semicircle shape in the resettlement section as shown in Figure 9.On the other hand, constriction 39 is connected in a portion 35 and is provided with, and has the internal diameter corresponding to the external diameter of lancet 1 (with reference to Fig. 1).

First flat part 36 is in puncture and keeps out of the way on direction N1, the N2 and extend, and forms groove 36a person on the 36A of end.Groove 36a as expecting according to Fig. 1 and Fig. 3, is the mobile person who is used for allowing the second movable pin 30b in the link component 30, is being orthogonal to puncture and is keeping out of the way on the direction of direction N1, N2 and extend.Therefore, the position of first flat part 36 (lancet seat 32), from Figure 15 A～Figure 15 D and Figure 16 as can be seen, with the puncture of the second movable pin 30b with keep out of the way position consistency on direction N1, the N2.Thereby it is the back and forth movement that one-period is carried out at the center with steady pin 30c that lancet seat 32 just revolves during turning around at link component 30.

As shown in Fig. 8 and Fig. 9, second flat part 37 is to be used for combining with first flat part 36 via the 37A of Liaison Division with the lead mobile person of the release member 50 (with reference to Figure 14 A and Figure 14 B) in the lancet output mechanism 5 described later of first flat part 36.On the 37A of Liaison Division, form the recess 37Aa of the protuberance 34C be used for cooperating second member 34 described later.

Second member 34 when being the installing by lancet 1 (with reference to Fig. 1) as shown in Fig. 8 A and Fig. 8 B and the effect of lancet output mechanism 5, in puncture or keep out of the way the person of being moved on direction N1, the N2, comprises 34A of domes portion and retainer 34B.

As shown in Figure 10, the 34A of domes portion forms the semicircle tubular so that cover the outer surface of lancet 1 (with reference to Fig. 1), the spigot surface 38A of ground configuration first member 33 of putting up a bridge placed in the middle as shown in Fig. 7, Fig. 8 A and Fig. 8 B.

As shown in Fig. 8 A and Fig. 8 B, retainer 34B is used for relatively interfering the 38B of wall portion in first member 33 when mobile at 34 pairs first members 33 of second member on puncture direction N1, limits the moving relatively person to puncture direction N1 of 34 pairs first members 33 of second member.On retainer 34B, be provided with outstanding pin 34b on puncture direction N1.This pin 34b is used for interfering in the part of lancet 1 (with reference to Fig. 1) when to lancet seat 32 installing lancets 1 (with reference to Fig. 1), by the breach 38b of the 38B of wall portion in first member 33 its person of moving that leads.

On second member 34, near retainer 34B, be provided with hemispheric protuberance 34C.This protuberance 34C is the recess 37Aa person who is used for being matched with the 37A of Liaison Division in first member 33, forms the bigger size than recess 37Aa.Protuberance 34C constitutes and be matched with recess 37Aa when lancet 1 is inserted into the degree of interfering in the 38B of wall portion of first member 33.Be matched with at protuberance 34C under the state of recess 37Aa, because protuberance 34C forms the size greater than recess 37Aa, so on the 34A of domes portion, acting on the power that pushes lancet 1.Therefore, if make protuberance 34C be matched with recess 37Aa, then between 34A of domes portion and resettlement section 38,, pushing force lancet 1 (with reference to Fig. 1) so that acting on the state clamping of lancet 1.Whereby, just can improve the retentivity of lancet 1 (with reference to Fig. 1) to lancet seat 32.On the other hand, in the occasion that discharges protuberance 34C from recess 37Aa, because lancet 1 is reduced by the power that the 34A of domes portion is pushed, so can easily take off lancet 1 (with reference to Fig. 1) cluster needling blood needle stand 32.

As shown in Fig. 6 A and Fig. 6 B, latch-release mechanism 4 is the lock-out state persons that are used for removing 31 pairs of housings 2 of movable plate, has oscillating structural member 40.Oscillating structural member 40 comprises a pair of spring portion 41, following pushed section 42 and service portion 43 as shown in Figure 11.

A pair of spring portion 41 has the elasticity of appropriateness, and stretches out from service portion 43.A pair of spring portion 41 is as expect that according to Figure 11 and Figure 12 configuration at certain intervals is so that the 31C of hook portion of movable plate 31 (with reference to Fig. 6 A and Fig. 6 B) can move between these spring portions 41.Fixed part 41A is used for to the fixing oscillating structural member of housing 2.This fixed part 41A has a pair of protuberance 41a, between these protuberances 41a, is cooperating the fixing sheet 21e on first sleeve pipe 21 that is located at housing 2.

Following pushed section 42 is by the part that pushes away under the user, by under push pushed section 42, as shown in Figure 13 A～Figure 13 C, can remove the mated condition of the 31C of hook portion of movable plate 31.Expose via the second peristome 21c of housing 2 following pushed section 42, and allowed to move by the second peristome 21c.This time pushed section 42 is because oscillating structural member 40 is fixed in housing 2 (with reference to Figure 12) at fixed part 41A place, and spring portion 41 has the elasticity of appropriateness, so can be a spot wobble with fixed part 41A with service portion 43.

Service portion 43 is to be used for being made the part of pushing force to the 31C of hook portion effect when pushing away under 42 quilts of infra pushed section.In the occasion that makes this pushing force effect, the 31C of hook portion is towards interior side's side displacement of housing 2 as shown in Figure 13 B and Figure 13 C, and the engagement state of the 31C of hook portion is disengaged.As mentioned above, because the 31C of hook portion is engaged under the state of protuberance 21a, movable plate 31 is loaded to keeping out of the way direction N2, so as shown in Fig. 6 B, by removing the engagement state of the hook 31C of portion, movable plate 31 moves keeping out of the way on the direction N2.

As shown in Figure 14, lancet output mechanism 5 is to be used for after the puncture action, and cluster needling blood needle stand 32 takes down lancet.This lancet output mechanism 5 have can to housing 2 and lancet seat 32 puncture with keep out of the way direction N1, N2 on relative moving release member 50.This release member 50 comprises operating portion 51 and service portion 52.Operating portion 51 is to make in the hand operated by user to release the part of being utilized when member 50 moves, and is allowed to puncturing and keeping out of the way moving of direction N1, N2 by the 3rd peristome 21d.Service portion 52 is the retainer 34B persons that are used for interfering second member 34 in lancet seat 32, when operating portion 51 is mobile on puncture direction N1, and mobile person on the direction N1 that puncturing between first and second flat parts 36,37 of lancet seat 32.Thereby, in lancet output mechanism 5, on puncture direction N1, move by making operating portion 51, service portion 52 is moved on puncture direction N1, can lean on this service portion 52 that second member 34 of lancet seat 32 is moved.By moving of this second member 34, the pin 34b of second member 34 moves on puncture direction N1, can lean on this pin 34b that lancet 1 is moved on puncture direction N1.

Next, using method and the operating principle with regard to sting device X1 describes.But, in the early stage under the state, as shown in Figure 15 A and Figure 16, movable plate 31 is positioned at the free position (top dead-centre) of keeping out of the way direction N2, the first movable pin 30a is arranged in the left part of inclination slot part 31Aa of the groove 31A of movable plate 31, the second movable pin 30b is arranged in the left part of the groove 36a of lancet seat 32, and the anglec of rotation of the link component 30 of this moment becomes 0 °.

In occasion, at first, as shown in Fig. 1 and Figure 15 C, be engaged at the 31C of hook portion that does to become to make movable plate 31 behind the state of protuberance 21a of housing 2 lancet seat 32 installing lancets 1 with sting device X1 skin puncture.But, also can after lancet seat 32 is installed lancets 1, make movable plate 31 be locked in housing 2.

The engagement state of the 31C of hook portion as shown in Figure 15 A～Figure 15 C, can move on puncture direction N1 by the operating portion 31B that makes movable plate 31 and realize.

In the occasion that movable plate 31 is moved to puncture direction N1, as shown in Figure 15 A and Figure 15 B, the first movable pin 30a of link component 30 moves in the inclination slot part 31Aa of movable plate 31 to the right.In order to allow moving of this first movable pin 30a, contain the second movable pin 30b link component 30 be that the center turns clockwise totally with steady pin 30c.In order to allow the rotation of this link component 30, the second movable pin 30b makes lancet seat 32 move to the center among the groove 36a at lancet seat 32 keeping out of the way to lift on the direction N2 simultaneously.Therefore, make movable plate 31 move to the occasion (0～90 ° of the anglec of rotation of link component 30) of the position shown in Figure 15 B from the position shown in Figure 15 A, lancet seat 32 is along with movable plate 31 moves on puncture direction N1 to moving of puncture direction N1.

Further, in the occasion that movable plate 31 is moved to puncture direction N1, as shown in Figure 15 B and Figure 15 C, the first movable pin 30a of link component 30 back and forth movement in the straight line portion 31Aa of movable plate 31.In order to allow moving of this first movable pin 30a, it is mobile that the second movable pin 30b makes lancet seat 32 press down at puncture direction N1, and simultaneously, therefrom mind-set is right-hand mobile to make groove 36a.Thereby, make movable plate 31 move to the occasion (90 °～180 ° of the anglecs of rotation of link component 30) of the position shown in Figure 15 C from the position shown in Figure 15 B, lancet seat 32 is along with movable plate 31 moves on puncture direction N1 to moving of puncture direction N1, make movable plate 31 when puncture direction N1 moves a certain distance, as shown in Figure 15 C, the 31C of hook portion of movable plate 31 is engaged in the protuberance 21a of housing 2.At this moment, because bung flange spring Sp extended, so movable plate 31 is being locked in housing 2 towards keeping out of the way under the state that direction N2 is loaded.

On the other hand,, take off second sleeve pipe 22 from first sleeve pipe 21 at first as shown in Figure 2, do into the state that the constriction 39 of lancet seat 32 exposes from first sleeve pipe 21 in the occasion of installing lancet 1.Then, insert lancets 1 from a side opposite via constriction 39 with puncture needle 11.At this moment, the end face of lancet 1 is interfered in the pin 34b of second member 34 as shown in Figure 14 B, and second member 34 moves keeping out of the way on the direction N2 with the release member 50 of lancet output mechanism 5.In the occasion that second member 34 moves a certain distance, the end face of lancet 1 is interfered in the retainer 38B of first member 33, being prevented to keeping out of the way the mobile of direction N2 of lancet 1.At this moment, the protuberance 34C of second member 34 is matched with the recess 37Aa of first member 33.Whereby, second member 34 presses solidly in first member 33, and lancet 1 is held between first and second members 33,34 and the hold mode of the lancet 1 in the lancet seat 32 is guaranteed.

In the occasion that the installing of the locking of movable plate 31 and lancet 1 finishes,, shown in Fig. 6 B and Figure 13 A～Figure 13 D, carry out the puncture of skin by the following pushed section 42 that pushes away latch-release mechanism 4 down as Fig. 6 A.Infra pushes the occasion of pushed section 42, and the oscillating structural member 40 of pushed section 42 and service portion 43 is that fulcrum moves to the interior side of housing 2 with fixed part 41A under comprising.Whereby, as shown in Figure 13 B, make the displacement of the inside side's side of the 31C of hook portion, be disengaged so the 31C of hook portion is engaged in the state of protuberance 21a because service portion 43 is interfered in the 31C of hook portion.

As mentioned above, because keeping out of the way direction N2, movable plate 31 courts are loaded, so as shown in Figure 15 C and Figure 15 D, movable plate 31 moves to keeping out of the way direction N2.At this moment, the first movable pin 30a of link component 30 moves to left in the inclination slot part 31Aa of movable plate 31.In order to allow moving of this first movable pin 30a, comprise the second movable pin 30b link component 30 be that the center turns clockwise totally with steady pin 30c.In order to allow the rotation of this link component 30, the second movable pin 30b pushes away lancet seat 32 up and down at puncture direction N1 and moves (scopes that the anglec of rotation of the link component among Figure 16 is 180 °～270 °) to the center among the groove 36a at lancet seat 32 simultaneously.

As shown in Figure 15 D, to the moving of puncture direction N1, lancet 1 also moves lancet 1 skin puncture Sk on puncture direction N1 by lancet seat 32.At this moment, because bung flange spring Sp extended from the state shown in Figure 15 A, so movable plate 31 and then move keeping out of the way on the direction N2.In order to allow moving of this movable plate 31, the second movable pin 30b in groove 36a therefrom the mind-set left move, the first movable pin 30a comes and goes moving in the straight line portion 31Ab of groove 31A and link component 30 is that the center turns clockwise with steady pin 30c on the other hand.Whereby, lancet seat 32 lifts keeping out of the way on the direction N2, and lancet seat 32 returns to the free position before the locking as shown in Figure 15 A, and lancet 1 is pulled out (scopes that the anglec of rotation of the link component Figure 16 is 270 °～360 °) from skin.

In the occasion that puncture procedure finishes, cluster needling blood needle stand 32 takes off lancet 1.Taking off of lancet 1 as shown in Figure 14 A and Figure 14 B, utilizes lancet output mechanism 5 to carry out.That is to say that move on puncture direction N1 by the operating portion 51 that makes lancet output mechanism 5, cluster needling blood needle stand 32 takes off lancet 1.

In the occasion that operating portion 51 is moved on puncture direction N1, service portion 52 moves on puncture direction N1 and this service portion 52 is interfered in retainer 34B.In the occasion that operating portion 51 is moved on puncture direction N1, via the power of 52 couples of retainer 34B of service portion effect to puncture direction N1.In the occasion to the power more than the retainer 34B effect necessarily, the mated condition between the recess 37Aa of the protuberance 34C of second member 34 and first member 33 is disengaged, and second member 34 moves on puncture direction N1.Whereby, by the end face of the pin 34b of second member 34 pushing lancet 1, lancet 1 is moved on puncture direction N1.At this moment, owing to protuberance 34C is disengaged the mated condition of recess 37Aa, so the power of the 34A of domes portion of second member 34 pushing lancet 1 reduces, easily cluster needling blood needle stand 32 takes off lancet 1.

In sting device X1,, can easily be locked in housing 2 to movable plate 31 by pushing away the operating portion 31B of movable plate 31 down.On the other hand, in order to carry out the puncture of skin, the following pushed section 42 that only pushes away latch-release mechanism 4 down is just passable.So, sting device X1 is because following moving and following pushed section 42 that can be by operating portion 31B following pushes away such operation extremely easily and can puncture, so become person easy to use.

In sting device X1 and then, because constitute,, puncture needle 11 is come and gone, between holding fix and puncture position so can obtain the advantage of following explanation along with the circular motion of link component 30 by the state of unlocking.

The first, because after puncture needle 11 pierces through skin, pull out from skin immediately,, can reduce the pain that gives user so that puncture needle 11 pierces through the time of skin is very short.

The second, because puncture needle 11 keeps out of the way after piercing through skin, so puncture back puncture needle 11 is not from the outstanding but safety of housing 2.In sting device X1, block member 919 because unlike establishing the existing sting device 91 that illustrates with reference to Figure 34 A～Figure 34 C, be provided with, can lean on easy formation to realize keeping out of the way of puncture needle 11, so can suppress the manufacturing cost of sting device very lowly.

The 3rd, because impact, impulsive sound and vibration can suppress to puncture the time, and then suppress rocking of puncture needle 11, so can reduce pain or the unplessantness displeasure that gives user.That is to say, when puncture needle 11 arrives puncture position, do not produce impact or impulsive sound because lancet seat 32 does not strike against housing 2.Whereby, the unplessantness displeasure in the time of can reducing puncture.In addition, mobile because lancet seat 32 rotation by link component 30 comes and goes, so when lancet seat 32 moves, lancet seat 32 acted on all the time puts forth effort and the motion of lancet seat 32 is restricted.Whereby, even when lancet seat 32 moves, between the inner face of lancet seat 32 and housing 2, produce the occasion of interfering or rubbing, lancet seat 32 is suitably moved on N1, N2.As a result, in sting device X1 because the gap between link component 30 and lancet seat 32 and the housing 2 set the very for a short time possibility that becomes, so in this occasion, rocking when suppressing lancet seat 32 mobile becomes possibility.And then, in sting device X1, according to Figure 16 as can be seen, constituting at lancet seat 32 (lancet 1) when holding fix moves to puncture position, movable plate 31 moves keeping out of the way on the direction N2.Whereby, because can offset lancet 1 and on puncture direction N1, move vibration when arriving puncture position to keeping out of the way moving of direction N2, so can suppress lancet 1 is unnecessarily applied impact by movable plate 31.

The sting device of first embodiment of the invention is not limited to above-mentioned example and all design alterations are possible.For example, though in sting device X1, movable plate 31 is locked in housing 2 by movable plate 31 is moved on puncture direction N1, also can constitute by make movable plate 31 keep out of the way on the direction N2 mobile and movable plate 31 is locked in housing 2.In this occasion, constitute that lancet seat 32 carries out back and forth movement by movable plate 31 is moved on puncture direction N1.

Though in the present embodiment, be illustrated, staggering of phase place be not limited to 90 ° during movable plate 31 and lancet seat 32 mobile with the example that constitutes of the back and forth movement of 90 ° of movable plate 31 and lancet seat 32 mutual phase shiftings.That is to say, the position relation of the first and second movable pin 30a, 30b in the link component 30, perhaps the shape of the groove 36a of the groove 31A of movable plate 31 and lancet seat 32 is not limited to illustrated embodiment in the present embodiment.In addition, even the phase place when movable plate 31 and lancet seat 32 move be set at 90 °, the position relation of the first and second movable pin 30a, 30b in the link component 30, perhaps the shape of the groove 36a of the groove 31A of movable plate 31 and lancet seat 32 also is not limited to illustrated embodiment in the present embodiment.

In addition, impact or vibration when stopping in order to suppress movable plate 31 or lancet seat 32 also can constitute and not make movable plate 31 or lancet seat 32 anxious stopping, and apply braking and they are stopped.More particularly, for example also can constitute when movable plate 31 or lancet seat 32 approach to make the position that they stop, housing 2 (first sleeve pipe 21) contacts with movable plate 31 or lancet seat 32, applies braking and movable plate 31 or lancet seat 32 are stopped by frictional force at this moment.Frictional force can be by to housing 2 (first sleeve pipe 21), near the part that movable plate 31 or lancet seat 32 are stopped or its projection is set, perhaps reduce this part place housing 2 (first sleeve pipe 21) internal diameter and take place.Also can housing 2 (first sleeve pipe 21) design alteration in addition be constituted projection is set on movable plate 31 or lancet seat 32, frictional force takes place more reliably.

Next, with regard to second embodiment of the present invention, describe with reference to Figure 17～Figure 24.But, in Figure 17～Figure 24, about giving same label with the same element of the sting device X1 that illustrates previously.

As shown in Figure 17 and Figure 19, sting device X2 has in the inside of housing 2, accommodates link component 6, and the form of oscillating deck 7 and lancet seat 8 constitutes the back and forth movement that the motion converter of movable plate 7 is become lancet seat 8 by making link component 6 swings.

As shown in Figure 17 and Figure 18, link component 6 is to stipulate its motion, the sporter who stipulates lancet seat 8 on the other hand with cause movable plate 7.This link component 6 has first arm 61 and second arm 62.

First arm 61 has rocking pin 61a.Rocking pin 61a is the cam path that is used for being matched with movable plate 7 described later.Second arm 62 has rocking pin 62a.Rocking pin 62a is the breach that is used for being matched with lancet seat 8 described later.On second arm 62, be provided with rotating dog 63.63 pairs of housings 2 of rotating dog can be fixed rotatably.That is to say that rocking pin 61a, 62a can be that the center rotates with rotating dog 63.

Oscillating deck 7 as shown in Figure 20 A and Figure 20 B, is housing 2 to be connected via bung flange spring Sp to housing 2 at puncture direction N1 with keep out of the way mobile person on the direction N2.This movable plate 7 has cam path 70 as shown in Figure 21, operating portion 71 and through hole 72.

As shown in Figure 21 and Figure 22, cam path 70 is to be used for making the rocking pin 61a (with reference to Figure 24 A～Figure 24 D) in the link component 6 to engage, and allows the mobile person of rocking pin 61a.This cam path 70 comprises puncture and keeps out of the way direction N1, N2 at the side upwardly extending inclination slot part 70a, the 70b that tilt, puncturing and keeping out of the way the straight line slot part 70c that extends on direction N1, the N2.Inclination slot part 70a is the part (with reference to Figure 24 B and Figure 24 C) that rocking pin 61a is moved for lancet seat 8 is moved on puncture direction N1, and inclination slot part 70b is in order to make lancet seat 8 keep out of the way the part (with reference to Figure 24 C and Figure 24 D) that moves on the direction N2 and rocking pin 61a is moved.Straight line slot part 70c does not make lancet seat 8 in puncture with keep out of the way on direction N1, the N2 and to move and movable plate 7 is being kept out of the way move on the direction N2, and the part (with reference to Figure 24 A and Figure 24 B) that moved of rocking pin 61a.As among Figure 22 well shown in, in the boundary portion office of inclination slot part 70a and straight line slot part 70c, inclination slot part 70a one side deeper forms than straight line slot part 70c, sets differential between these slot parts 70a, 70c.Therefore, rocking pin 61a can not move to straight line slot part 70c from inclination slot part 70a.On the other hand, in the boundary portion office of inclination slot part 70b and straight line slot part 70c, straight line slot part 70c one side deeper forms than inclination slot part 70b, sets differential between these slot parts 70b, 70c.Therefore, rocking pin 61a can not move to inclination slot part 70b from straight line slot part 70c.Thereby the mobile route of the rocking pin 61a in the cam path 70 is defined as the clockwise direction of Figure 17 and Figure 24 A～Figure 24 D.

As shown in Figure 20 A and Figure 20 B, operating portion 71 is with user when movable plate 7 is moved.These operating portion 71 its parts are outwards outstanding via the peristome 20 of housing 2, and allowed to puncturing and keeping out of the way moving of direction N1, N2 by peristome 20.

Through hole 72 is in order bounce to be accumulated under the state of bung flange spring Sp fixedly 7 users of movable plate.More particularly, the fixing of movable plate 7 realized by the 45a of hook portion of fixed component 45 is engaged through hole 72.45 pairs of housings 2 of fixed component can be supported rotatably, and 45b place, infra pushed section is loaded by the foreign side of bung flange spring 46 to housing 2.In this constituted, the 45a of hook portion can engage through hole 72 more strongly.On the other hand, the occasion that pushed section 45b pushes away under the interior side of housing 2 under handle, the 45a of hook portion can remove the engagement state of the 45a of hook portion to through hole 72 to foreign side's rotation of housing 2.

As shown in Figure 23, be to be used for lancet seat 8 maintenance lancets 1, make this lancet 1 person of moving (with reference to Figure 17 and Figure 18), same with movable plate 7 (with reference to Figure 22), can and keep out of the way on direction N1, the N2 and move in puncture.These lancet seat 8 integral body comprise breach 80 and seat portion 81 puncturing and keeping out of the way on direction N1, the N2 and move.

Breach 80 is to be used for cooperating rocking pin 62a, and allows the mobile person (with reference to Figure 24 A～Figure 24 B) of rocking pin 62a, is intersecting at puncture and is keeping out of the way on the direction of direction N1, N2 and extend.Seat portion 81 is used for keeping lancet 1 (with reference to Fig. 1) person, has the receiving space 82 of accommodating lancet 1 usefulness.

Next, using method and the operating principle with regard to sting device X2 describes.But under the state, as shown in Figure 24 A, movable plate 7 is positioned at the top dead-centre of keeping out of the way direction N2 in the early stage, and rocking pin 61a is arranged in the bottom of straight line slot part 70c of the cam path 70 of movable plate 7.

In occasion, at first, as shown in Figure 18 and Figure 20 B, the seat portion 81 of 1 pair of lancet seat 8 of lancet is installed after doing to become to make the 45a of hook portion of fixed component 45 to be engaged in the state of through hole 72 of movable plate 7 with sting device X2 skin puncture.But, also can after seat portion 81 is installed lancets 1, make the 45a of hook portion be engaged in the through hole 72 of movable plate 7.

The 45a of hook portion is engaged in the state of through hole 72, can see from Figure 20 A and Figure 20 B, can realize by the operating portion 71 of movable plate 7 is moved a certain distance on puncture direction N1.At this moment, as shown in Figure 24 A and Figure 24 B, because between the inclination slot part 70b of cam path 70 and straight line slot part 70c, be provided with differential (with reference to Figure 22), so the rocking pin 61a of link component 6 moves in the straight line slot part 70c of cam path 70.Therefore, movable plate 7 does not make lancet seat 8 move, and moves on puncture direction N1.In the occasion that movable plate 7 moves on puncture direction N1, bung flange spring Sp is extended, and movable plate 7 is being held in housing 2 towards keeping out of the way under the state that direction N2 is loaded.

In the occasion that the installing of the maintenance of movable plate 7 and lancet 1 finishes, as shown in Figure 20 A and Figure 20 B, can carry out the puncture of skin by the following pushed section 45b that pushes away fixed component 45 down.Infra pushes the occasion of pushed section 45b, and the 45a of hook portion is to foreign side's rotation of housing 2, and the state that the 45a of hook portion is engaged in through hole 72 is disengaged.As mentioned above because movable plate 7 is loaded towards keeping out of the way direction N2, so as Figure 24 B～Figure 24 D as shown in, movable plate 7 make bung flange spring Sp compression simultaneously keep out of the way on the direction N2 mobile.At this moment, because between straight line slot part 70c and inclination slot part 70a, be provided with differential (with reference to Figure 22),, in inclination slot part 70b, moves the rocking pin 61a of link component 6 so moving the back in the inclination slot part 70a of cam path 70.

Link component 6 moves in inclination slot part 70a in order to allow rocking pin 61a, after clockwise direction in the drawings is the center rotation with rotating dog 63, in order to allow rocking pin 61a to move in inclination slot part 70b, counter clockwise direction in the drawings is the center rotation with rotating dog 63.In the swing of this rocking pin 61a, rocking pin 62a also rotates after the rotation in the clockwise direction in the counterclockwise direction.Thereby lancet seat 8 moves on puncture direction N1 along with the swing of rocking pin 62a and is keeping out of the way after the skin puncture on the direction N2 and moving.In the back and forth movement of this lancet seat 8, the puncture needle 11 of lancet 1 is extracted from skin after skin puncture.

In sting device X2,, can easily make movable plate 7 be fixed in housing 2 by pushing away the operating portion 71 of movable plate 7 down.On the other hand, in order to carry out the puncture of skin, the following pushed section 45b that only pushes away fixed component 45 down is just passable.So, sting device X2 can puncture with the operation extremely easily that a hands also can carry out, so become person easy to use because following moving and following pushed section 45 that can be by operating portion 71 following pushes away like this.

In sting device X2, because when movable plate 7 moves, bung flange spring Sp is extended or is compressed, so can avoid such to the occasion of reversing bung flange spring Sp, locates to act on partly the very state of heavy load in the end etc.As a result, even because can use rigidity than the junior, can guarantee that also the life-span of bung flange spring Sp is long, so become to the favourable person of manufacturing cost as bung flange spring Sp.

In sting device X2 and then, because constitute by removing the stationary state of movable plate 7, along with the swing of link component 6, puncture needle 11 is come and gone, between holding fix and puncture position so can receive same effect with the sting device X1 that illustrates previously (with reference to Fig. 1 etc.).That is to say, in sting device X2, the first, pierce through the time of skin so can reduce the pain that gives user, second because can shorten puncture needle 11, because puncture needle 11 is kept out of the way so be safe after the puncture, in addition can be by constituting keeping out of the way of the puncture needle 11 realized after the puncture easily, the 3rd, because impact, impulsive sound and vibration can suppress to puncture the time, and then suppress rocking of puncture needle 11, so can reduce pain or the unplessantness displeasure that gives user.

Next, with regard to the 3rd embodiment of the present invention, describe with reference to Figure 25 A～Figure 25 D.In these figure, about giving same label with the same element of the sting device X1, the X2 that illustrate previously.

Sting device X3 shown in Figure 25 A～Figure 25 D and the sting device X2 (with reference to Figure 17 and Figure 24 A～Figure 24 D) that illustrates previously, the form of cam path 70B among the movable plate 7B is with different from the formation that skin pulls out usefulness puncture needle 11 after puncture needle 11 at lancet 1 pierces through skin.

Cam path 70B has the inclination slot part 70d that is used for making link component 6 swings.The rocking pin 61a of link component 6 constitutes at movable plate 7B at puncture direction N1 with keep out of the way on certain direction of direction N2 when mobile, moves in inclination slot part 70d.

Movable plate 7B is supported via two bung flange spring Sp, Sp ' housing 2.Bung flange spring Sp is mainly used to lean on the bounce of being accumulated to make movable plate 7B mobile person on puncture direction N1.In contrast, bung flange spring Sp ' is mainly used to after puncture needle 11 pierces through skin, make movable plate 7B keep out of the way mobile person on the direction N2 making movable plate 7B accumulate bounce when mobile on puncture direction N1.Bung flange spring Sp, Sp ' constitute and do not make load keep mutual equilibrium under the state in movable plate 7B from external action, and this moment, rocking pin 61a was positioned at the central authorities of inclination slot part 70d.

In this sting device X3, as shown in Figure 25 A and Figure 25 B, movable plate 7B is fixed in housing 2 on puncture direction N1 by movable plate 7B is moved, bung flange spring Sp is extended on the other hand that bung flange spring Sp ' is compressed.At this moment, bung flange spring Sp, Sp ' become the state of accumulating bounce, and rocking pin 61a is positioned at the upper end of inclination slot part 70d.Under this state, remove the occasion that movable plate 7B is fixed in the state of housing 2, as shown in Figure 25 C and Figure 25 D, movable plate 7B moves on the direction N2 and rocking pin 61a moves in inclination slot part 70d keeping out of the way.Whereby, rotate on the overall clockwise direction in the drawings of link component 6, lancet seat 8 and then lancet 1 move on puncture direction N1.On the other hand, arrive the bottom of inclination slot part 70d and after puncture needle 11 pierces through skin at rocking pin 61a, as shown in Figure 25 E, mainly the bounce by bung flange spring Sp ' acts on to the power of keeping out of the way direction N2 lancet seat 8, and rocking pin 61a moves in inclination slot part 70d.Whereby, link component 6 is counterclockwise gone up rotation in the drawings and lancet seat 8 and then lancet 1 move on the direction N2 keeping out of the way, and puncture needle 11 pulls out from skin.

Next, with regard to the 4th embodiment of the present invention, describe with reference to Figure 26～Figure 30.In these figure, about giving same label with the same element of the sting device X1, the X2 that illustrate previously.

The formation of cam path 70C among sting device X4 shown in Figure 26 and the sting device X2 (with reference to Figure 17 and Figure 24 A～Figure 24 D) that illustrates previously, link component 6C and movable plate 7C is different.

As shown in Figure 26～Figure 28, link component 6C comprises major diameter rocking pin 61c and the minor diameter rocking pin 61d that is used for being matched with cam path 70C, and the rocking pin 62Ca that is used for being matched with the breach 80 of lancet seat 8.Major diameter rocking pin 61c forms with minor diameter rocking pin 61d and compares big diameter.On the roughly centre position of major diameter rocking pin 61c and minor diameter rocking pin 61d, be provided with rotating dog 63C.This rotating dog 63C though obviously do not draw in the drawing, is held in housing 2 so that can intersect at puncture and keep out of the way on direction N3, the N4 of direction N1, N2 and move.Rotating dog 63C for example is provided with on housing 2 at N3, the upwardly extending slotted hole in N4 side, can move to N3, N4 direction by supporting in this slotted hole.

As shown in Figure 26 and Figure 28, cam path 70C comprises thick sipes 73C of portion and the thin 74C of sipes portion.The thick 73C of sipes portion.The thick 73C of sipes portion has by the form between rake 73Cc connection two line part 73Ca, 73Cb.The length dimension of line part 73Ca, 73Cb set for and major diameter rocking pin 61c and minor diameter rocking pin 61d between distance same or roughly same.The width dimensions of the thick 73C of sipes portion is taken as same or more than it with the diameter of major diameter rocking pin 61c.On the other hand, the thin 74C of sipes portion has the form that connects rake 74Ca and line part 74Cb.Rake 74Ca is parallel to the rake 73Cc of the thick sipes 73C of portion, these rakes 73Cc, and puncturing and keeping out of the way on direction N1, the N2 in the interval of rake 74Ca, roughly consistent with the interval of major diameter rocking pin 61c and minor diameter rocking pin 61d.The end of rake 73Cc is connected in the line part 73Ca of the thick sipes 73C of portion.The end of line part 74Cb is connected in the thick sipes 73C of portion at the line part 73Cb of the thick 73C of sipes portion and the boundary of rake 73Cc.The length dimension of rake 73Ca and line part 74Cb set for and major diameter rocking pin 61c and minor diameter rocking pin 61d between distance same or roughly same.The width dimensions of the thin 74C of sipes portion is same or more than it, less than the diameter of major diameter rocking pin 61c with the diameter of minor diameter rocking pin 61d.

As shown in Figure 29 A, in sting device X4, under the state of extraneous load to the effect of movable plate 7C portion, major diameter rocking pin 61c and minor diameter rocking pin 61d are positioned at the line part 73Cb of the thick sipes 73C of portion.As shown in Figure 29 A and Figure 29 B, movable plate 7C constitutes by moving on puncture direction N1, and the state of accumulating bounce with bung flange spring Sp is fixing to housing 2.In the occasion that movable plate 7C is moved on puncture direction N1, at first major diameter rocking pin 61c moves in the line part 73Cb of the thick 73C of sipes portion, and minor diameter rocking pin 61d moves in the line part 74Cb of the thin 74C of sipes portion.As shown in Figure 29 C, then, though minor diameter rocking pin 61d moves in the rake 73Cc of the thin 74C of sipes portion, but major diameter rocking pin 61c moves in the rake 74Ca of the thick 73C of sipes portion because of its diameter can not move in the thin 74C of sipes portion greater than the width dimensions event of the thin 74C of sipes portion.That is to say that major diameter rocking pin 61c and minor diameter rocking pin 61d are in puncture and keep out of the way the state side by side of keeping on direction N1, the N2, make on the overall N4 direction in the drawings of link component 6 movable inclined 73Cc, 74Ca of parallel mobile while.Then, as shown in Figure 29 D and Figure 29 E, major diameter rocking pin 61c and minor diameter rocking pin 61d both sides move in the line part 73Ca of the thick 73C of sipes portion.

From Figure 29 A～Figure 29 E as can be seen, in the occasion that movable plate 7C is moved on puncture direction N1, major diameter rocking pin 61c in the link component 6 and minor diameter rocking pin 61d are in puncture and keep out of the way the state side by side of keeping on direction N1, the N2, and link component 6 is not moving relatively to movable plate 7C rotatably.Therefore, in the occasion that movable plate 7C is moved on puncture direction N1, lancet seat 8 is in puncture and keep out of the way on direction N1, the N2 mobile.As a result, when movable plate 7C was fixed in housing 2, even lancet 1 is installed in lancet seat 8, the puncture needle 11 of lancet 1 was not outstanding from housing 2 yet.

On the other hand, in the occasion of the stationary state of removing movable plate 7C, as shown in Figure 30 A～Figure 30 F, movable plate 7C moves keeping out of the way on the direction N2.At this moment, major diameter rocking pin 61c and minor diameter rocking pin 61d both sides move in the thick 73C of sipes portion.More particularly, major diameter rocking pin 61c moves among rake 73Cc and the line part 73Cb at line part 73Ca, and minor diameter rocking pin 61d moves in line part 73Ca and rake 73Cc.That is to say that major diameter rocking pin 61c and minor diameter rocking pin 61d both sides pass through the state that moves in rake 73Cc.

As shown in Figure 30 C and Figure 30 D, because under the state that major diameter rocking pin 61c moves in rake 73Cc, minor diameter rocking pin 61d moves in line part 73Ca, so rotating dog 63C rotates on the overall clockwise direction in the drawings of mobile link component 6 simultaneously on the N3 direction.At this moment, because also rotation in the clockwise direction of rocking pin 62Ca, so lancet seat 8 and then lancet 1 move on puncture direction N1, the puncture needle 11 of lancet 1 pierces through skin.

In contrast, as shown in Figure 30 E and Figure 30 F, because under the state that minor diameter rocking pin 60d moves in rake 73Cc, major diameter rocking pin 61c moves in line part 73Cb, so rotating dog 63C moves the totally rotation in the counterclockwise direction of link component 6 simultaneously on the N4 direction.At this moment, because also rotation in the counterclockwise direction of rocking pin 62Ca, so lancet seat 8 and then lancet 1 are being kept out of the way on the direction N2 mobilely, puncture needle 11 pulls out from skin.

With the same puncture of sting device X4 action, can realize by cam path and link component are taken as following formation.At first, in cam path, the thick sipes 73C of portion among the cam path 70C be equivalent to sting device X4 and two slot parts of the thin 74C of sipes portion are set, and their width dimensions are taken as same, and the degree of depth is taken as different persons.On the other hand, with regard to the connecting rod member, two pins of major diameter rocking pin 61c in the link component 6 that is equivalent to sting device X4 and minor diameter rocking pin 61d as same diameter setting, and are taken as different persons to the length of these pins.

Next, with regard to the 5th embodiment of the present invention, describe with reference to Figure 31 A～Figure 31 D and Figure 32 A～32D.In these figure, about giving same label with the same element of the sting device X1, the X2 that illustrate previously.

As shown in Figure 31 A, sting device X5 and the sting device X2 (with reference to Figure 17 and Figure 24 A～Figure 24 D) that illustrates previously, the formation of the cam path 70D among the movable plate 7D, link component 6 is different with the action of movable plate 7D.

Cam path 70D has the form of the straight line slot part 70c (with reference to Figure 22) that omits the cam path 70 among the sting device X2.That is to say to have the form that two inclination slot part 70Da, 70Db are provided with continuously.These inclination slot parts 70Da, 70Db form the same degree of depth.

Link component 6 can be orthogonal to puncture and keep out of the way on the N3, N4 direction of direction N1, N2 and move, and can be that the center rotates with rotating dog 63.Though do not draw on link component 6 drawings, for example on housing 2, be arranged on N3, the upwardly extending slotted hole in N4 side, by supporting that in this slotted hole rotating dog 63 becomes and can move to N3, N4 direction.

Movable plate 7D has inclined plane 75D and stop surface 76D, and can and keep out of the way on direction N1, N2 and arrow N3, the N4 direction and move in puncture.This movable plate 7D can puncture and keep out of the way on direction N1, the N2 and move with loading guider 9D and control member 71D, loads guider 9D and control member 71D and also can independently move in N3, N4 direction.

Load guider 9D and have and be used for allowing the space 90D that move of movable plate 7D to N3, N4 direction, by being disposed at a pair of bung flange spring 91D, the 92D of this space 90D, loading guider 9D and movable plate 7D are connected.On movable plate 7D and loading guider 9D, be provided with and be used for limiting the retainer 77D, the 93D that move of movable plate 7D to arrow N4 direction.Thereby movable plate 7D, is loaded on arrow N4 direction by bung flange spring 91D, 92D to the moving of N4 direction by retainer 77D, 93D restriction under the state that extraneous load does not act on.

Operating portion 71D only constitutes and can and keep out of the way on direction N1, the N2 and move in puncture.The mobile form of this control member 71D for example can be used for housing 2 restriction control member 71D are realized to the guider that moves of N3, N4 direction by setting.This control member 71D has inclined plane 71Da and stop surface 71Db.Inclined plane 71Da makes movable plate 7D on arrow N3 direction when mobile, is used for being contacted with the part of the inclined plane 75D of movable plate 7D.Stop surface 71Db is used for movable plate 7D is moved on puncture direction N3, and perhaps movable plate 7D when mobile, is contacted with the part of the stop surface 76D of movable plate 7D on keeping out of the way direction N2.

In this sting device X5, under the state that extraneous load does not act on to movable plate 7D, bung flange spring 91D, 92D are in elongation state, and movable plate 7D is loaded as above-mentioned on the N4 direction.When puncturing action, as shown in Figure 31 A～Figure 31 D, movable plate 7D moves on puncture direction N1 by making control member 71D, moves on puncture direction N1 with loading guider 9D.At this moment, because control member 71D is restricted to arrow N3, the mobile of N4 direction, so as shown in Figure 31 A and Figure 31 B, interfere stop surface 76D up to the stop surface 71Db of control member 71D in movable plate 7D, the inclined plane 71Da of control member 71D slides on the 75D of the inclined plane of movable plate 71D, and movable plate 7D moves on arrow N3 direction.With this, rotate on link component 6 clockwise direction in the drawings, lancet seat 8 lifts keeping out of the way on the direction N2.Interfere in the occasion of the stop surface 76D of movable plate 7D at the stop surface 71Db of control member 71D, as shown in Figure 31 B～Figure 31 D, movable plate 7D moves on puncture direction N1 with control member 71D.At this moment, rocking pin 61a moves in inclination slot part 70Da, 70Db.During rocking pin 61a moves in inclination slot part 70Db, rotation on link component 6 counter clockwise direction in the drawings and lancet seat 8 moves on puncture direction N1.On the other hand, during rocking pin 61a moved in inclination slot part 70Da, rotation on link component 6 counter clockwise direction in the drawings and lancet seat 8 moved keeping out of the way on the direction N2.In the occasion that movable plate 7D moves a certain distance, accumulate under the state of bounce at bung flange spring Sp, 91D, 92D, with in that to keep out of the way the state that loads on direction N2 and the arrow N4 direction fixing to housing 2.

In the fixing operation of this movable plate 7D, though lancet seat 8 moves on puncture direction N1 when rocking pin 61a is mobile in inclination slot part 70Db, but owing to keeping out of the way in advance and lifting on the direction N2 by movable plate 7D is moved on arrow N3 direction, even so, also can avoid the puncture needle 11 of lancet 1 outstanding from housing 2 if lancet seat 8 is installed lancet 1 in advance.

As shown in Figure 32 A～Figure 32 D, in the occasion of the stationary state of removing movable plate 7D, movable plate 7D moves keeping out of the way on the direction N2.At this moment, remove, so as Figure 32 A and Figure 32 B as shown in, movable plate 7D is mobile on arrow N4 direction independently with loading guider 9D by the loading force of the N4 direction that acts on movable plate 7D owing to act on the extraneous load of control member 71D.Because on movable plate 7D, acting on, so movable plate 7D moves keeping out of the way on the direction N2 with loading guider 9D to the loading force of keeping out of the way direction N2.At this moment, rocking pin 61a moves in inclination slot part 70Da, 70Db.

As shown in Figure 32 B and Figure 32 C, during rocking pin 61a moves in inclination slot part 70Da, rotation on link component 6 counter clockwise direction in the drawings and movable plate 7D moves on puncture direction N1 at mobile lancet seat 8 and then lancet 1 on the puncture direction N1, puncture needle 11 skin puncture of lancet 1.On the other hand, as shown in Figure 32 C and Figure 32 D, during rocking pin 61a moved in inclination slot part 70Db, rotation on link component 6 clockwise direction in the drawings and movable plate 7D moved keeping out of the way on the direction N2.Whereby, lancet seat 8 and then lancet 1 move keeping out of the way on the direction N2, and the puncture needle of lancet 1 11 is extracted from skin.

Moreover, though load guider 9D under to the inner face state of contact of housing 2 in puncture or keep out of the way on direction N1, the N2 and move, constitute preferably that kinetic force of friction reduces between loading guider 9D and housing 2.For example, preferably the inner face of housing 2 or load the outside sliding surfaceization of guider 9D, a plurality of narrow slits or recess perhaps are set and reduce contact area.

The present invention is not limited to above-mentioned first～the 5th embodiment, and all changes are possible.For example, though in sting device X1～X5, constituting movable plate 31,7A～7D moves by the bounce of bung flange spring Sp, make driving force act on movable plate 31,7A～7D but also can constitute, also can constitute driving forces such as utilizing Air Force or electromagnetic force movable plate 31,7A～7D are moved with the elastic component beyond the bung flange spring Sp.

Though it is puncture needle 11 is installed and removed freely on lancet seat 32,8 as the form of lancet 1, also can puncture needle 11 integrated in the moving body that carries out with the same action of lancet seat 32,8.

Claims (24)

1. a sting device is that piercing element is moved from the puncture direction of holding fix to puncture position, pierces through the sting device that the object position is used by described piercing element, it is characterized in that, comprising:

Described puncture direction and as with this puncture direction rightabout keep out of the way on the direction can back and forth movement the first round member;

With described piercing element one body action, and link in the described first round member and at described puncture direction and the described second round member that carries out back and forth movement on the direction of keeping out of the way; With

Connect described first and come and go member and come and go between the member, be used for the motion converter of the described first round member is become the conversion member of the back and forth movement of the described second round member with described second,

Described first come and go member can be between first allocation and second allocation back and forth movement,

Described second comes and goes member comes and goes member during carrying out the back and forth movement of one-period between first allocation and second allocation described first, between the 3rd allocation and the 4th allocation, carry out the back and forth movement of one-period, and, come and go member during carrying out rectilinear motion between described first allocation and described second allocation described first, carry out back and forth movement.

2. the sting device described in claim 1, wherein, described piercing element constitutes to come and go described second and is positioned at described puncture position when member is positioned at described the 3rd allocation, is positioned at described holding fix when coming and going the zone line of member between described the 3rd allocation and described the 4th allocation described second.

3. the sting device described in claim 1, wherein, described piercing element constitute described first come and go member described keep out of the way move on the direction during, move to described puncture position from described holding fix.

4. the sting device described in claim 1, wherein, described second comes and goes member constitutes when described first comes and goes member and carry out the back and forth movement of one-period, carries out and described first comes and goes 90 ° of member phase shiftings or 90 ° the back and forth movement of one-period roughly.

5. the sting device described in claim 1, wherein, described conversion member comprises the rotating shaft of fixed-site; Being matched with described first and coming and going member, can be first movable part of center rotation with described rotating shaft; And be matched with the described second round member, can with described rotating shaft second movable part of center rotation.

6. the sting device described in claim 5, wherein, described first comes and goes member has first auxiliary section that rotatablely moves that is used for allowing described first movable part,

Described second comes and goes member has second auxiliary section that rotatablely moves that is used for allowing described second movable part.

7. the sting device described in claim 6, wherein, at least one side in the middle of described first and second auxiliary sections has the rake that the orthogonal direction that is orthogonal to described puncture relatively and keeps out of the way direction tilts.

8. the sting device described in claim 7, wherein, the line part that extends is fixed at the both ends of described rake on described orthogonal direction.

9. the sting device described in claim 8, wherein, the movable part that is matched with the central described rake of described first and second movable parts constitutes, move at described rake when described holding fix moves to described puncture position at described piercing element, on the other hand, moving at described line part when moving along the described direction of keeping out of the way from described puncture position.

10. the sting device described in claim 7, wherein, described first and described second auxiliary section in the middle of a side, have described rake, the opposing party in the middle of described first auxiliary section and described second auxiliary section, overall or major part is at described orthogonal direction or roughly extend on the orthogonal direction.

11. the sting device described in claim 1, wherein, described first comes and goes member constitutes when described piercing element is positioned at described holding fix, carries out fixed-site under the state that is loaded, and moves by loading force when stationary state is removed.

12. the sting device described in the claim 1, wherein, described conversion member constitutes by swing, described first motion converter that comes and goes member is become the back and forth movement of the described second round member.

13. the sting device described in claim 12, wherein, described conversion member comprises: swinging axle; Being matched with described first and coming and going member, can be first movable part of center swing with described swinging axle; And be matched with the described second round member, can with described swinging axle second movable part of center swing.

14. the sting device described in claim 13, wherein, described first comes and goes member has the auxiliary section that is used for cooperating with described first movable part and limits the motion of described conversion member according to the position that this first movable part is cooperated.

15. the sting device described in claim 14, wherein, described auxiliary section has and is used for making the swing of described conversion member, makes described second to come and go the rake that member moves on described puncture direction.

16. the sting device described in claim 15, wherein, described auxiliary section has and is used for making the swing of described conversion member, makes described second to come and go member at the described rake that appends that moves on the direction of keeping out of the way.

17. the sting device described in claim 14, wherein, described auxiliary section has along extending between described puncture and the retreating position, being used for and does not make described second to come and go member and conversion member in described puncture with keep out of the way and move on the direction and make described first to come and go member in described puncture or keep out of the way the line part that moves on the direction.

18. the sting device described in claim 15 wherein, also comprises being used for after making described piercing element pierce through described object position, makes described second to come and go member at the described elastic component that moves on the direction of keeping out of the way.

19. the sting device described in claim 14, wherein, described first movable part has first and second pins,

Described auxiliary section have make described second come and go member described first pin cooperate when mobile on described puncture direction and make described second to come and go member and keep out of the way the rake that described second pin cooperates when mobile on the direction described.

20. the sting device described in claim 19, wherein, described first comes and goes member has at this and first comes and goes member and keep out of the way on the direction when mobile the auxiliary section of appending that described second pin cooperates selectively described.

21. the sting device described in claim 20, wherein, described first pin becomes bigger than the described second pin diameter, and,

The described auxiliary section width dimensions that appends is set to the diameter dimension less than described auxiliary section and described first pin.

22. the sting device described in claim 12, wherein, described first comes and goes member constitutes by making described conversion member swing intersecting at described puncture and keep out of the way to move on direction described crisscross, makes described second to come and go member and move in described keeping out of the way on the direction.

23. the sting device described in the claim 22 wherein, also comprises being used for making described first to come and go the control member that member moves,

Described first comes and goes member and described control member has the inclined plane, constitutes inclined plane by making described control member and comes and goes on the inclined plane of member described first and move, and described first comes and goes member moves on crisscross described.

24. the sting device described in claim 23, wherein, also comprise with described first and come and go member in described puncture or keep out of the way the guider that one moves on the direction, and connect this guider and come and go between the member with described first, be used for coming and going member and intersecting at described puncture and keeping out of the way the elastic component of loading on direction crisscross to described first.

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