WO2004091401A1 - 穿刺装置 - Google Patents
穿刺装置 Download PDFInfo
- Publication number
- WO2004091401A1 WO2004091401A1 PCT/JP2004/005223 JP2004005223W WO2004091401A1 WO 2004091401 A1 WO2004091401 A1 WO 2004091401A1 JP 2004005223 W JP2004005223 W JP 2004005223W WO 2004091401 A1 WO2004091401 A1 WO 2004091401A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- puncture
- puncturing
- puncture device
- lancet
- pin
- Prior art date
Links
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
- A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150503—Single-ended needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
- A61B5/15128—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising 2D- or 3D-shaped elements, e.g. cams, curved guide rails or threads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
Definitions
- the present invention relates to a puncture device used for collecting blood or tissue from skin, and the like.
- Puncturing device 90 shown in these figures is configured to move lancet 902 together with lancet holder 901 by the elastic force of coil spring 900 to puncture skin.
- the puncture device 90 allows the coil spring 900 to store the elastic force by latching the locking claw 903 of the lancet holder 901 to the step 905 of the housing 904. Is configured.
- to release the latch state as shown in FIG. 33B, by pressing the operation cap 906, the action portion 907 of the operation cap 906 acts on the locking claw 903, and the locking of the locking claw 903 is performed. This is done by releasing the status.
- the puncturing device disclosed in Japanese Unexamined Utility Model Publication No. 64-42010 converts the rotational motion of the cam body 910 into the reciprocating motion of the lancet support 911 as shown in FIGS. 34A to 34C of the present application.
- the lancet 92 is moved together with the lancet support 911 to puncture the skin.
- cam body 910 is fixed with coil spring 913 accumulating elastic force.
- the rotating lever 914 By operating the rotating lever 914 from this state, the fixed state of the cam body 910 is released as shown in FIGS. 34B and 34C. This allows the force Body 910 rotates about axis 915.
- the cam body 910 is provided with a V-shaped cam groove 916, and the engaging pins 9-7 integrated with the lancet support 911 are engaged with the cam groove 916. Therefore, when the cam body 910 rotates, the engagement pins 9 ⁇ 7 move along the cam grooves 916. As a result, the lancet support 911 reciprocates in the puncturing direction N1 and the evacuation direction N2 while being guided by the slide holes 918, and the lancet 912 together with the lancet support 911 reciprocates in the puncture evacuation directions N1 and N2. Moving.
- Puncturing apparatus 91 further includes a mark member 919 to prevent inadvertent projection of lancet 912 during non-puncturing to improve safety and to obtain an appropriate puncturing depth.
- the mark member 919 includes a slide member 919A and a mark plate 919B that moves together with the slide member 919A.
- the slide member 919A and the mark plate 919B are urged in the puncture direction N1, and by pressing the puncture device 91 with the mark plate 919B in contact with the skin, the puncture device 91 is moved in the retracting direction N2. It is configured so that it can be moved.
- the puncture device described in Japanese Patent No. 2702374 has a transmission member 921 and a lancet holder 922 housed inside a housing 920, and rotates the transmission member 921.
- the lancet holder 922 is configured to be moved in the puncturing and retreating directions N1 and N2.
- the transmission member 921 can rotate in the circumferential direction in close contact with the inner surface of the lancet holder 922, and is supported by the housing 920 via the coil spring 923.
- the transmission member 921 is provided with a drive pin 925 for engaging with the drive force 924 of the lancet holder 922.
- the driving force 924 is, as shown in FIG.
- the transmission member 921 is further connected to a sealing ring 926 provided at the distal end of the housing 920, and the driving pin 925 of the transmission member 921 is rotated by rotating the sealing ring 926.
- the transmission member 921 is configured such that the coil spring 923 is twisted by fixing means (not shown), and the coil spring 923 can be fixed in a state where the coil spring 923 has accumulated elastic force.
- the release of the fixed state of the transmission member 921 can be performed by pressing the operation button 927.
- the lancet 912 is less likely to shake, and the lancet support 911 is reciprocated by the cam mechanism. The movement does not cause a large impact to the skin at the time of puncture, nor does it generate a loud impact sound.
- the apparatus configuration is complicated, which is disadvantageous in manufacturing cost.
- the mark member 919 is configured to adjust the pressing force applied to the mark member 919 by a user's operation to adjust the puncture depth.
- the puncture device 92 shown in FIGS. 35 and 36 is configured to rotate the sealing ring 926 and then operate the operation button 927 to move the lancet holder 922 in the puncture direction. Therefore, it is difficult to operate puncture device 92 with one hand, and the operability is poor. Further, when one coil panel 923 is used, there is a problem that a load is easily applied to the end of the coil panel 923, and the life of the coil spring 923 is short. In order to solve this problem, it is necessary to increase the rigidity of the coil spring 923, in which case it is disadvantageous in terms of cost. Disclosure of the invention
- An object of the present invention is to provide a puncture device that reduces pain and discomfort at the time of puncture, has good operability, and can be manufactured at a low cost.
- a puncture device provided by the present invention is a puncture device for moving a puncture element in a puncture direction from a standby position to a puncture position, and piercing a target site with the puncture element.
- a first member capable of reciprocating in a retracting direction opposite to the puncturing direction, and integrally moving with the puncturing element, and reciprocating in the puncturing direction and the retracting direction in conjunction with the first member.
- a second member capable of reciprocating in a retracting direction opposite to the puncturing direction, and integrally moving with the puncturing element, and reciprocating in the puncturing direction and the retracting direction in conjunction with the first member.
- the first member is, for example, reciprocally movable between a first fixed position and a second fixed position
- the second member is, for example, a member which is moved between the first fixed position and the second fixed position.
- it is configured to make one cycle of reciprocating motion between the third fixed position and the fourth fixed position.
- the second member be configured to perform a turning movement while the first member moves linearly between the first fixed position and the second fixed position.
- the puncturing element is located at the puncturing position when the second member is located at the third home position, for example, and is at the standby position when the second member is located at an intermediate region between the third home position and the fourth home position. It is configured to be located at. It is preferable that the puncture element be configured to move from the standby position to the puncture position while the first member moves in the retracting direction.
- the second member has a structure in which the first member performs one cycle of reciprocating motion. When performing, it is configured to perform one cycle of reciprocating motion that is 90 degrees or substantially 90 degrees out of phase with the first member.
- the punching device of the present invention further includes a third member for connecting the first member and the second member, and converting the movement of the first member into the reciprocating movement of the second member.
- the third member is, for example, a rotating shaft fixed in position, a first movable portion that engages with the first member and is rotatable around the rotating shaft, and a third movable member that engages with the second member and rotates around the rotating shaft. And a rotatable second movable portion.
- the first member is configured to have, for example, a first engagement portion for allowing the rotational movement of the first movable portion
- the second member is configured, for example, for allowing the rotational movement of the second movable portion. It is configured as having a second engagement portion.
- At least one of the first and second engagement portions has an inclined portion that is inclined with respect to a perpendicular direction or a substantially perpendicular direction that is perpendicular to the puncturing and retreating directions. It is preferable that both end portions of the inclined portion are connected to the linear portion extending in the orthogonal direction.
- the movable part that engages with the inclined part of the first and second movable parts moves along the inclined part when the puncturing element moves from the standby position to the puncturing position, while moving along the evacuation direction from the puncturing position. It is preferable that the linear portion be moved when moving.
- first and second engagement portions is particularly limited as long as the first and second movable portions are allowed to rotate and the second member can reciprocate when the first member moves. Not limited.
- the first member is configured to be fixed in a biased state when the puncture element is at the standby position, and to be moved by the biasing force when the fixed state is released. Be composed.
- the third member may be configured to convert the movement of the first member into the reciprocating movement of the second member, for example, by swinging.
- the third member is, for example, an oscillating shaft, a first movable portion that engages with the first member, and is oscillatable about the oscillating shaft, and a second member that engages with the second member. And a swingable second movable portion as a center.
- the first member is provided, for example, when the first movable portion is engaged and the first movable portion is engaged. Depending on the location, it is configured to have an engagement portion for regulating the movement of the third member.
- the engaging portion has an inclined portion for swinging the third member and moving the second member in the puncturing direction.
- the engaging portion has an additional inclined portion for swinging the third member and moving the second member in the retreating direction, and piercing and retracting the second and third members. It may have a linear portion for moving the first member in the puncturing or retreating direction without moving in the direction.
- the puncture device of the present invention can be configured as further provided with an elastic member for moving the second member in the retreating direction after piercing the puncture element into the sealed part.
- the first movable section can be configured as having first and second pins.
- the engaging portion is configured such that the first pin is engaged when the second member is moved in the puncturing direction, while the inclined portion is engaged with the second pin when the second member is moved in the retracting direction. It is constituted as having.
- the first member may be configured to have an additional engaging portion with which the second pin selectively engages when the first member moves in the retreating direction.
- the first pin has a larger diameter than, for example, the second pin. In this case, the width of the additional engaging portion is set smaller than the diameter of the engaging portion and the diameter of the first pin.
- the first member may be configured to swing in the crossing direction that intersects the puncturing and evacuation directions to swing the third member and move the second member in the evacuation direction.
- the puncture device of the present invention further includes an operating member for moving the first member, wherein the first member and the operating member have inclined surfaces, and the inclined surface of the operating member is By moving on the inclined surface of one member, the first member can be configured to move in the cross direction.
- a puncture device according to the present invention includes a guide integrally moving in a puncturing or retreating direction with a first member, connecting the guide with the first member, and moving the first member in the puncturing and retreating direction. And an elastic member for urging in a crossing direction that intersects with each other.
- FIG. 1 is a cross-sectional view illustrating a puncture device according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing a state where a second sleeve and a lancet are removed from the puncture device shown in FIG.
- FIG. 3 is a sectional view taken along the line m--m in FIG.
- FIG. 4 is an overall perspective view of the link member.
- FIG. 5 is a front view for explaining the operation of the link member.
- 6A and 6B are views for explaining the internal configuration of the puncture device shown in FIG. 1, and are cross-sectional views in which some of the components are omitted.
- FIG. 7 is an overall perspective view of the lancet holder.
- FIG. 8A is a cross-sectional view along the line VDI- ⁇ in FIG. 7, and FIG. 8B is a cross-sectional view showing a state where the second member of the lancet holder has been moved in FIG. 8A.
- FIG. 9 is an overall perspective view showing a first member of the lancet holder shown in FIG.
- FIG. 10 is an overall perspective view showing a second member of the lancet holder shown in FIG.
- FIG. 11 is an overall perspective view showing a swing member of a latch release mechanism in the puncture device shown in FIG.
- FIG. 12 is a cross-sectional view for explaining a fixed state of the swing member and an enlarged cross-sectional view of a main part thereof.
- Figure 13A ⁇ Figure 13C is for explaining the operation of the latch release mechanism, is a fragmentary cross-sectional view showing by omitting some components 6
- FIG. 14A and FIG. 14B are cross-sectional views of main parts for describing the lancet discharge mechanism.
- 15A to 15D are schematic cross-sectional views for explaining a puncturing operation in the puncturing apparatus shown in FIG.
- FIG. 16 is a graph showing changes in the positions of the moving plate and the lancet holder during the puncturing operation.
- FIG. 17 is a cross-sectional view showing a puncture device according to the second embodiment of the present invention.
- FIG. 18 is another sectional view of the puncture device shown in FIG.
- FIG. 19 is an overall perspective view of a link member in the puncture device shown in FIGS. 17 and 18.
- FIG. 3 is a cross-sectional view showing a main part with some of the components omitted.
- FIG. 21 is an overall perspective view of a moving plate in the puncture device shown in FIGS. 17 and 18.
- FIG. 22 is an enlarged perspective view of a main part of the moving plate shown in FIG.
- FIG. 23 is an overall perspective view of the lancet holder in the puncture device shown in FIGS. 17 and 18.
- 24A to 24D are schematic cross-sectional views for explaining a puncturing operation in the puncturing device shown in FIGS. 17 and 18.
- 25A to 25E are schematic cross-sectional views for explaining a puncturing apparatus and a puncturing operation according to the third embodiment of the present invention.
- FIG. 26 is a cross-sectional view of a puncture device according to the fourth embodiment of the present invention.
- FIG. 27 is an overall perspective view of a link member in the puncture device shown in FIG.
- FIG. 28 is an enlarged perspective view showing a main part of a moving plate in the puncturing apparatus shown in FIG.
- 29A to 29E are schematic cross-sectional views for explaining a puncturing operation in the puncturing apparatus shown in FIG.
- 30A to 30F are schematic cross-sectional views for explaining a puncturing operation in the puncturing apparatus shown in FIG.
- FIGS. 31A to 31D are schematic cross-sectional views for explaining a puncturing apparatus and a puncturing operation according to the fifth embodiment of the present invention.
- 32A to 32D are schematic cross-sectional views for explaining a puncturing operation of the puncturing device according to the fifth embodiment of the present invention.
- 33A to 33C are cross-sectional views illustrating an example of a conventional puncture device.
- 34A to 34C are cross-sectional views showing another example of a conventional puncture device.
- FIG. 35 is a cross-sectional view showing another example of the conventional puncturing apparatus.
- FIG. 36 is a plan view of relevant parts for describing a drive cam in the puncture device shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- the present invention will be described as first to fifth embodiments. This will be specifically described with reference to the drawings.
- puncturing apparatus XI moves lancet 1 from the standby position (the position where lancet 1 is drawn by a solid line in the figure) to the piercing position (the position where lancet 1 is drawn by a virtual line in the figure). It is used to puncture the skin by moving it to and draining blood from the skin.
- the piercing device XI includes a housing 2, a lancet moving mechanism 3, a latch release mechanism 4, and a lancet discharging mechanism 5.
- the lancet 1 is an element for puncturing the skin as described above, and is held by a lancet holder 32 described later and is moved by the movement of the lancet holder 32.
- the lancet 1 has a form in which the puncture needle 11 protrudes from the main body 10, and is configured to be disposable, for example.
- the main body 10 is formed in a cylindrical shape with resin or the like.
- the puncture needle 11 is made of, for example, metal and is insert-molded into the main body 10.
- the housing 2 defines a space for accommodating various elements, and is constituted by first and second sleeves 21 and 22.
- the first sleeve 21 has a protrusion 21a and first to third openings 21b to 21d.
- the protrusion 21a is for locking the moving plate 31 in the lancet moving mechanism 3.
- the first opening 21b is for allowing the operation unit 31B to move on the moving plate 31.
- the second opening 21c is for allowing the movement of the pressing part 42 in the latch release mechanism 4.
- the third opening 21d is for allowing the operation unit 51 of the lancet discharge mechanism 5 to move.
- Both ends of the second sleeve 22 are open so that movement of a lancet holder 32 described later is permitted.
- the second sleeve 22 is detachable from the tip of the first sleeve 21 as shown in FIGS. Therefore, when the second sleeve 22 is removed from the first sleeve 21, the lancet 1 can be easily mounted on the lancet holder 32.
- the lancet moving mechanism 3 has a link member 30, a moving plate 31, and a lancet holder 32.
- This lancet moving mechanism 3 The reciprocating motion of the moving plate 31 is converted into the reciprocating motion of the lancet holder 32 via the circular motion of the link member 30.
- the link member 30 is for moving the lancet holder 32 in conjunction with the movement of the moving plate 31 when the moving plate 31 moves.
- the link member 30 has a first movable pin 30a, a second movable pin 30b, a fixed pin 30c, a first arm member 30A, and a second arm member 30B.
- the first movable pin 30a is for engaging the movable plate 31 and for connecting the first and second arm members 30A and 30B. More specifically, the first movable pin 30a connects the ends 30Ab, 30Bb of the first and second arm members 30A, 30B at the ends 30Aa, 30Ba of the first and second arm members 30A, 30B. They are fixed with their positions shifted from each other.
- the second movable pin 30b is engaged with the lancet holder 32, and protrudes at the end 30Ab of the first arm member 30A in a direction opposite to the first movable pin 30a.
- the fixing pin 30c is for rotatably fixing the link member 30 to the housing 2, and protrudes at the end 30Bb of the second arm member 30B in a direction opposite to the first movable pin 30a. .
- the pins 30a to 30c are interconnected via the first and second arm members 30A and 30B, so that the positional relationship between the pins 30a to 30c is defined. ing. More specifically, the first and second movable pins 30a and 30b have the same distance to the fixed pin 30c, while the second movable pin 30b has a circumference around the fixed pin 30c, The position is shifted by 45 degrees with respect to the first movable pin 30a. Therefore, if the link member 30 is rotated about the fixed pin 30c as the center of rotation, the first and second movable pins 30a and 30b make a circular motion about the fixed pin 30c, and the first and second movable pins 30a and 30a.
- the trajectory of 30b in the puncturing and retreating directions N1 and N2 draws a sinusoidal curve whose phases are shifted from each other by 45 degrees as shown in FIG.
- the moving plate 31 is movable in the puncturing direction N1 and the retreating direction N2 with respect to the housing 2, and is connected to the housing 2 via a coil spring Sp. Have been.
- the moving plate 31 has a groove 31A, an operation part 31B, and a hook part 31C.
- the groove 31A is for allowing the movement of the first movable pin 30a in the link member 30 (see FIG. 3).
- the groove 31A has an inclined groove 31Aa extending in a direction inclined with respect to the puncturing and retreating directions N1 and N2, and straight grooves 31Ab connected to both ends of the inclined groove 31Aa. As can be seen from FIGS. 15A to 15D and FIG.
- the first movable pin 30a can move the inclined groove 31Aa at least when the lancet 1 moves from the standby position to the punching position, while at least the lancet 1 moves.
- the linear groove 31Ab can be moved when moving along the evacuation direction N2 from the puncture position.
- the position of the first movable portion 30a itself in the puncturing and retreating directions N1 and N2 and the position of the first movable portion 30a in the groove 31A are different from those in the housing 2. Is determined. More specifically, as shown in FIG. 16, the position of the movable plate 31 is determined by the position of the first movable portion 30a in the puncturing and retreating directions N1 and N2 with respect to the fixed pin 30c, and the position of the groove 31A.
- the position of the first movable portion 30a in the groove 31A with respect to the center in the puncturing and retreating directions N1, N2 in the groove 31A is obtained as the difference between For this reason, when the link member 30 is rotated clockwise, the moving plate 31 moves between the free position (top dead center) and the latch position (bottom dead center) during one rotation of the link member 30. Reciprocate around the fixed pin 30c. As shown in FIGS. 6A and 6B, the operation unit 31B is used when the moving plate 31 is manually moved. A part of the operation unit 31B protrudes outside through the first opening 21b of the housing 2, and the first opening 21Tb allows re-puncturing and movement in the retreating directions N1, N2. .
- the hook portion 31C is for engaging the protrusion 21a of the housing 2 to latch the moving plate 31 to the housing 2.
- the movable plate 31 is configured such that when the coil spring Sp is in a contracted state, the hook portion 31C is located on the retreating direction N2 side with respect to the protruding portion 21a.
- the coil spring Sp is extended and the moving plate 31 is urged in the retreating direction N2.
- the lancet holder 32 holds the lancet 1 (see FIG. 1) and moves the lancet 1, and is similar to the moving plate 31 (see FIG. 6).
- the puncture and evacuation directions N1 and N2 can be moved.
- the lancet holder 32 has first and second members 33 and 34 which can move relative to each other.
- the first member 33 includes a holder portion 35 for holding the lancet 1 (see FIG. 1) as shown in FIGS. 7 to 9 and a link member 30 (see FIGS. 3 to 5) with respect to the movable plate 31. And a second plate portion 37 provided opposite to the first plate portion 36.
- the holder section 35 has a housing section 38 for housing the lancet 1 (see FIG. 1) and a restraining section 39 for restricting the movement of the lancet 1 (see FIG. 1) in the radial direction. ing.
- the housing portion 38 is formed in a half pipe shape having an inner surface shape following the surface shape of the lancet 1, and has a pair of guide surfaces 38A and a wall portion 38B.
- the guide surface 38A is for guiding the movement of an arch portion 34A of the second member 34 described later.
- the wall 38B is provided with a notch 38b.
- the notch 38b is for guiding the movement of a pin 34b of the second member 34, which will be described later, and is formed in a semicircular shape at the end of the housing 38 as shown in FIG.
- the restraining portion 39 is provided continuously to the holder portion 35 and has an inner diameter corresponding to the outer diameter of the lancet 1 (see FIG. 1).
- the first plate portion 36 extends in the puncturing and retreating directions N1 and N2, and has a groove 36a formed in an end portion 36A.
- the groove 36a is for allowing the movement of the second movable pin 30b in the link member 30, as expected from FIGS. 1 and 3, and extends in a direction orthogonal to the piercing and retreating directions N1, N2. ing. Therefore, as can be seen from FIGS. 15A to 15D and FIG. 16, the position of the first plate portion 36 (the lancet holder 32) coincides with the position of the second movable pin 30b in the puncturing and retreating directions N1, N2. Therefore, the lancet holder 32 performs one cycle of reciprocating movement around the fixing pin 30c while the link member 30 makes one rotation.
- the second plate portion 37 moves the pushing member 50 (see FIGS. 14A and 14B) in the lancet discharge mechanism 5 described later together with the first plate portion 36. And is connected to the first plate portion 36 via a communication portion 37A.
- the connecting portion 37A is formed with a concave portion 37Aa for engaging a convex portion 34C of the second member 34 described later.
- the second member 34 is moved in the puncturing or retreating directions N1 and N2 when the lancet 1 (see FIG. 1) is mounted and by the action of the lancet discharging mechanism 5. And has an arch portion 34A and a stopper portion 34B. As shown in Fig.
- the arch portion 34A is formed in a semi-cylindrical shape so as to cover the outer surface of the lancet 1 (see Fig. 1), and as shown in Figs. 7, 8A and 8B.
- the first member 33 is arranged so as to bridge the guide surface 38A.
- the storage / portion 34B is formed by the wall portion of the first member 33 when the second member 34 moves in the puncture direction N1 relative to the first member 33.
- the second member 34 interferes with the first member 33 and regulates the relative movement of the second member 34 in the puncture direction N1.
- the stopper portion 34B is provided with a pin 34b protruding in the puncture direction N1.
- the pin 34b is a part for interfering with the lancet 1 (see FIG. 1) when the lancet 1 (see FIG. 1) is mounted on the lancet holder 32. The movement is guided by 38b.
- the second member 34 is provided with a hemispherical convex portion 34C near the stopper portion 34B.
- the convex portion 34C is for fitting into the concave portion 37Aa of the connecting portion 37A in the first member 33, and has a size slightly larger than the concave portion 37Aa.
- the convex portion 34C is configured to fit into the concave portion 37Aa when the lancet 1 is inserted to such an extent that the lancet 1 interferes with the wall portion 38B of the first member 33.
- a force for pressing the lancet 1 is applied to the arch portion 34A because the convex portion 34C is formed to have a larger size than the concave portion 37Aa.
- the convex portion 34C is fitted to the concave portion 37Aa, the lancet 1 (see FIG. 1) is applied between the arch portion 3A and the housing portion 38 while applying a pressing force to the lancet 1. Be pinched. As a result, the holding force of the lancet 1 (see FIG. 1) on the lancet holder 32 can be increased.
- the convex portion 34C is opened from the concave portion 37Aa, the force of pressing the lancet 1 by the arch portion 34A becomes small, so that the lancet 1 (see FIG. 1) is easily removed from the lancet holder 32. Can be removed.
- the latch release mechanism 4 is for releasing the latch state of the moving plate 31 with respect to the housing 2, and has a swing member 40.
- the swinging member 40 includes a pair of spring portions 41, It has a working part 43.
- the pair of spring portions 41 have appropriate elasticity and extend from the action portion 43. As can be expected from FIGS. 11 and 12, the pair of spring portions 41 allow the hook portions 31C (see FIGS. 6A and 6B) of the moving plate 31 to move between the panel portions 41. As shown, they are arranged at regular intervals. At an end of the spring portion 41, a fixed portion 41A is provided.
- the fixing portion 41A is used for fixing the swing member 40 to the housing 2.
- the fixing portion 41A has a pair of convex portions 41a, and engages with an engaging piece 21e provided on the first sleeve 21 of the housing 2 between the convex portions 41a.
- the pressing part 42 is a part pressed by the user, and when the pressing part 42 is pressed, the engagement state of the hook part 31C of the moving plate 31 is released as shown in FIGS. 13A to 13C. can do.
- the pressing portion 42 is exposed through the second opening 21c of the housing 2, and is allowed to move by the second opening 21c. Since the swinging member 40 is fixed to the housing 2 at the fixing portion 41A (see FIG. 12) and the panel portion 41 has appropriate elasticity, the pressing portion 42 supports the fixing portion 41A together with the operating portion 43. Can swing as a point.
- the action part 43 is a part for applying a pressing force to the hook part 31C when the pressing part 42 is pressed.
- the hook 31C is displaced inward of the housing 2 as shown in FIG. 13B and FIG. 13C, and the engaged state of the hook 31C is released.
- the moving plate 31 is urged in the retreating direction N2, and therefore, as shown in FIG. By disengaging the engagement state, the moving plate 31 moves in the retreat direction N2.
- the lancet ejection mechanism 5 is for removing the lancet 1 from the lancet holder 32 after the puncturing operation.
- the lancet discharge mechanism 5 has an extruding member 50 that can move relative to the housing 2 and the lancet holder 32 in the puncturing and retreating directions N1 and N2.
- the pushing member 50 has an operation section 51 and an action section 52.
- the operation unit 51 is a part used when the pushing member 50 is moved by a user's manual operation, and is punctured and retracted by the third opening 21d. Movement in the evacuation directions N1 and N2 is allowed.
- the action section 52 is for causing interference with the stopper section 34B of the second member 34 in the lancet holder 32, and when the operation section 51 is moved in the puncture direction N1, the action section 52 It can be moved between the first and second plate portions 36 and 37 in the drilling direction N1. Therefore, in the lancet discharge mechanism 5, the operating portion 51 is moved in the puncturing direction N1 by moving the operating portion 52 in the piercing direction N1, and the second member 34 of the lancet holder 32 is moved by the operating portion 52. Can be moved. By the movement of the second member 34, the pin 34b of the second member 34 moves in the puncturing direction N1, and the relancet 1 can be moved in the puncturing direction N1 by the pin 34b.
- the movable plate 31 is located at the free position (top dead center) in the retreat direction N2, and the first movable pin 30a is in the groove 31A of the movable plate 31.
- the second movable pin 30b is located at the left end of the inclined groove 3lAa, and the second movable pin 30b is located at the left end of the groove 36a in the lancet holder 32.
- the rotation angle of the link member 30 is 0 degree.
- hook 31C of moving plate 31 is engaged with projecting portion 21a of housing 2. After that, mount the lancet 1 on the lancet holder 32. However, after attaching the lancet 1 to the lancet holder 32, the moving plate 31 may be latched to the housing 2.
- the engagement state of the hook portion 31C can be achieved by moving the operation portion 31B of the moving plate 31 in the puncture direction N1, as shown in FIGS. 15A to 15C.
- the first movable pin 30a of the link member 30 is tilted of the moving plate 31. Attempt to move groove 3lAa to the right.
- the entire link member 30 including the second movable pin 30b tries to rotate clockwise around the fixed pin 30c.
- the second movable pin 30b moves toward the center of the groove 36a of the lancet holder 32 while lifting the lancet holder 32 in the retreating direction N2.
- the first movable pin 30a of the link member 30 is connected to the linear portion 31Ab of the groove 31A. Try to reciprocate in.
- the second movable pin 30b moves the groove 36a from the center to the right while pushing down the lancet holder 32 in the puncturing direction N1. Therefore, when the moving plate 31 is moved from the position shown in FIG. 15B to the position shown in FIG.
- the lancet 1 when the lancet 1 is mounted, first, as shown in FIG. 2, the second sleeve 22 is removed from the first sleeve 21 so that the binding portion 39 of the lancet holder 32 is exposed from the first sleeve 21. Next, the lancet 1 is inserted from the opposite side of the puncture needle 11 via the restraining portion 39. At this time, as shown in FIG. 14B, the end face of the lancet 1 interferes with the pin 34b of the second member 34, and the second member 34 moves together with the pushing member 50 of the lancet discharge mechanism 5 in the retracting direction N2.
- the end face of the lancet 1 interferes with the stopper 38B of the first member 33, and the movement of the lancet 1 in the retreat direction N2 is prevented.
- the protrusion 34C of the second member 34 fits into the recess 37Aa of the first member 33.
- the second member 34 is pressed against the first member 33, the lancet 1 is sandwiched between the first and second members 33, 34, and the holding state of the lancet 1 in the lancet holder 32 is ensured. It is tightened.
- the moving plate 31 is biased in the retreating direction N2, let the moving plate 31 move in the retreating direction N2 as shown in FIGS. 15C and 15D.
- the first movable pin 30a of the link member 30 attempts to move the inclined groove 31Aa of the moving plate 31 to the left.
- the entire link member 30 including the second movable pin 30b tries to rotate clockwise around the fixed pin 30c.
- the second movable pin 30b moves the groove 36a of the lancet holder 32 from the right to the center while pushing down the lancet holder 32 in the puncturing direction N1 (see FIG. 16).
- the rotation angle of the link member is in the range of 180 ° to 270 °).
- the rotation angle of the link member is in the range of 270 ° to 360 °).
- the puncturing operation When the puncturing operation is completed, remove the lancet 1 from the lancet holder 32.
- the removal of the lancet 1 is performed using the lancet discharge mechanism 5, as shown in FIGS. 14A and 14B. That is, the lancet 1 is removed from the lancet holder 32 by moving the operation unit 51 of the lancet discharge mechanism 5 in the puncturing direction N1.
- the operation unit 51 When the operation unit 51 is moved in the puncture direction Nl, the operation unit 52 moves in the puncture direction N1, and the operation unit 52 interferes with the stop part 34B.
- the operation unit 51 is further moved in the puncturing direction N1 in this interference state, a force in the piercing direction N1 is applied to the stopper unit 34B via the operation unit 52.
- the moving plate 31 can be easily latched to the housing 2 by pressing down the operating portion 31B of the moving plate 31.
- puncturing apparatus XI is operable because puncturing can be performed by an extremely simple operation such as lowering operation unit 31B and pressing down pressing unit 42.
- the puncture device XI is further configured to release the latch state so that the puncture needle 11 reciprocates between the standby position and the puncture position according to the circular motion of the link member 30. Benefits are obtained.
- the puncture needle 11 is immediately removed from the skin after the puncture needle 11 pierces the skin, the time during which the puncture needle 11 pierces the skin is short, and the pain to the user is reduced. it can.
- the puncture needle 11 is safe without protruding from the housing 2 after puncture.
- the retraction of the puncture needle 11 can be achieved by a simple configuration without providing the mark member 919 unlike the conventional puncture device 91 described with reference to FIGS. 34A to 34C. Manufacturing costs can be kept low.
- the lancet holder 32 can be appropriately moved to N1 and N2.
- the gap between the link member 30 and the lancet holder 32 and the housing 2 can be set small, and in this case, the movement of the lancet holder 32 during movement is suppressed. It is possible to do.
- puncturing apparatus XI as can be seen from FIG. 16, when lancet holder 32 (lancet 1) moves from the standby position to the puncturing position, moving plate 31 moves in retracting direction N2. I have.
- the vibration when the lancet 1 moves in the puncturing direction N1 and reaches the puncturing position can be offset by the movement of the movable plate 31 in the retreating direction N2, so that an unnecessary impact is applied to the lancet 1. Can be suppressed.
- the puncture device according to the first embodiment of the present invention is not limited to the above-described example, and can be variously changed in design.
- moving plate 31 was latched in housing 2 by moving moving plate 31 in puncturing direction N1, but moving plate 31 was moved by moving moving plate 31 in retracting direction N2. It may be configured to be latched by 2.
- the lancet holder 32 is configured to reciprocate by moving the moving plate 31 in the puncturing direction N1.
- the moving plate 31 and the lancet holder 32 reciprocate with a phase shift of 90 degrees from each other, but the phase shift when the moving plate 31 and the lancet holder 32 move is not described. It is not limited to 90 degrees. That is, the positional relationship between the first and second movable pins 30a and 30b in the link member 30, or the shape of the groove 31A of the moving plate 31 and the shape of the groove 36a of the lancet holder 32 are as follows. The present invention is not limited to the illustrated example.
- the positional relationship between the first and second movable pins 30a and 30b in the link member 30 is changed.
- the shapes of the groove 31A of the moving plate 31 and the groove 36a of the lancet holder 32 are not limited to the examples illustrated in the present embodiment.
- the moving plate 31 and the lancet holder 32 are not suddenly stopped, but are stopped while applying a brake. May be. More specifically, for example, when the moving plate 31 or the lancet holder 32 approaches a place where they are stopped, the housing 2 (the first sleeve 21) contacts the moving plate 31 or the lancet holder 32. Alternatively, the moving plate 31 and the lancet holder 32 may be stopped while the brake is being applied by the frictional force at that time, and the frictional force is applied to the moving plate 31 with respect to the housing 2 (the first sleeve 21).
- the puncture device X2 has a configuration in which a link member 6, a moving plate 7, and a lancet holder 8 are housed inside the housing 2, and the movement of the moving plate 7 Is converted into a reciprocating motion of the lancet holder 8 by swinging the link member 6.
- the link member 6 regulates the movement of the lancet holder 8 while its movement is regulated by the moving plate 7.
- the link member 6 has a first arm portion 61 and a second arm portion 62.
- the first arm portion 61 has a swing pin 61a.
- the swing pin 61a is for engaging with a cam groove 70 of a moving plate 7 described later.
- the second arm 62 is 62a.
- the swing pin 62a is for engaging with a notch 80 of the lancet holder 8 described later.
- the second arm portion 62 is provided with a rotation pin 63.
- the rotation pin 63 is rotatably fixed to the housing 2. That is, the swing pins 61a and 62a can rotate around the rotation pin 63.
- the moving plate 7 is movable in the puncturing direction N1 and the retreating direction N2 with respect to the housing 2 as shown in FIGS. 20A and 20B, and is moved with respect to the housing 2 through a coil spring Sp. Are linked.
- the moving plate 7 has a force groove 70, an operation portion 71, and a through hole 72 as shown in FIG.
- the cam groove 70 is for engaging the swing pin 61a (see FIGS. 24A to 24D) of the link member 6 to allow the movement of the swing pin 61a. is there.
- the cam groove 70 has inclined grooves 70a and 70b extending in directions inclined with respect to the puncturing and retreating directions N1 and N2, and linear grooves 70c extending in the puncturing and retreating directions N1 and N2.
- the inclined groove 70a is a part for moving the swing pin 61a to move the lancet holder 8 in the puncturing direction N1 (see FIGS. 24B and 24C), and the inclined groove 70b moves the lancet holder 8 in the evacuation direction N2.
- the linear groove 70c is a portion where the swing pin 61a is moved when the moving plate 7 is moved in the evacuation direction N2 without moving the lancet holder 8 in the puncturing and evacuation directions N1 and N2 (FIG. 24A). And Figure 24B).
- the inclined groove 70a is formed deeper than the linear groove 70c, and between the grooves 70a and 70c. A step is set. Therefore, the swing pin 61a cannot move from the inclined groove 70a to the linear groove 70c.
- the linear groove 70c is formed deeper than the inclined groove 70b, and a step is set between the grooves 70b, 70c. Therefore, the swing pin 61a cannot move from the linear groove 70c to the inclined groove 70b. Accordingly, the movement path of the swing pin 61a in the cam groove 70 is defined in the clockwise direction in FIGS. 17 and 24A to 24D.
- the operation unit 71 is used when the moving plate 7 is manually moved.
- This operation part 71 is partially It protrudes outside through the opening 20, and the opening 20 allows the puncture and the movement in the evacuation directions N1 and N2.
- the through-hole 72 is used for fixing the moving plate 7 in a state where the coil spring Sp stores the elastic force. More specifically, the fixing of the moving plate 7 is achieved by engaging the hook portion 45a of the fixing member 45 with the through hole 72.
- the fixing member 45 is urged toward the outside of the housing 2 by a coil spring 46 at a pressing portion 45b rotatably supported by the housing 2. In this configuration, the hook portion 45a can relatively firmly engage the through hole 72.
- the pressing portion 45b is pressed toward the inside of the housing 2, the hook 45a rotates toward the outside of the housing 2 and the engagement of the hook 45a with the through hole 72 is released. Can be done.
- the lancet holder 8 holds the lancet 1 and moves the lancet 1 (see FIGS. 17 and 18), and is the same as the moving plate 7 (see FIG. 22). In addition, it can be moved in the puncturing and retreating directions N1 and N2.
- the lancet holder 8 extends in the puncturing and retreating directions N1 and N2 as a whole, and has a notch 80 and a holder portion 81.
- the notch 80 engages the swing pin 62a and allows the movement of the swing pin 62a (see FIGS. 24A to 24B), and intersects in the puncturing and retreating directions N1 and N2. It extends in the direction.
- the holder portion 81 is for holding the lancet 1 (see FIG. 1), and has a housing space 82 for housing the lancet 1.
- the moving plate 7 is located at the top dead center in the retreat direction N2, and the swing pin 61a is at the lower end of the linear groove 70c in the cam groove 70 of the moving plate 7. It shall be located.
- FIG. 18 and FIG. 20B When puncturing skin using puncturing apparatus X2, first, as shown in FIG. 18 and FIG. 20B, the state where hook portion 45a of fixing member 45 is engaged with through hole 72 of moving plate 7 is shown. After that, mount the lancet 1 on the holder part 81 of the lancet holder 8. However, the hook 45a may be engaged with the through hole 72 of the moving plate 7 after the lancet 1 is mounted on the holder 81.
- the state in which the hook portion 45a is engaged with the through hole 72 is achieved by moving the operation portion 71 of the moving plate 7 by a fixed distance in the puncturing direction N1, as can be seen from FIGS. 20A and 20B. Can be. At this time, as shown in FIGS.
- the link member 6 rotates around the rotation pin 63 in the clockwise direction in the figure, and then the swing pin 61a moves along the inclined groove 70b.
- the rotation is performed about the rotation pin 63 in the counterclockwise direction in the figure.
- the swing pin 62a also rotates counterclockwise after rotating clockwise. Accordingly, the lancet holder 8 moves in the puncturing direction N1 according to the swing of the swing pin 62a, pierces the skin, and then moves in the retracting direction N2.
- the puncture needle 11 of the lancet 1 is pulled out of the skin after piercing the skin.
- the moving plate 7 can be easily fixed to the housing 2 by pressing down the operating portion 71 of the moving plate 7. Meanwhile, the skin puncture To do so, it is only necessary to press the pressing portion 45b of the fixing member 45.
- puncturing apparatus X2 is operable because it can perform puncturing by an extremely simple operation that can be performed with one hand, such as lowering operation unit 71 and pressing down pressing unit 45b.
- the coil spring Sp is extended or compressed, so that a state in which a large load acts locally at the end or the like, such as when the coil spring Sp is twisted. Can be avoided. As a result, even if a relatively low rigidity is used as the coil spring Sp, the life of the coil spring Sp can be maintained long, which is advantageous in manufacturing cost.
- the puncture device X2 is further configured to release the fixed state of the movable plate 7 to reciprocate the puncture needle 11 between the standby position and the puncture position according to the swing of the link member 6. Therefore, the same effect as that of puncturing apparatus Xl described above (see FIG. 1 and the like) can be obtained. That is, in the puncture device X2, firstly, the pain given to the user can be reduced because the time during which the puncture needle 11 pierces the skin can be reduced, and secondly, the puncture needle 11 can be retracted after the puncture.
- the puncture needle 11 can be retracted after puncturing with a simple configuration, and thirdly, the impact, impact sound and vibration during puncture can be suppressed, and furthermore, the puncture needle 11 can be restrained from shaking. As a result, pain and discomfort to the user can be reduced.
- FIGS. 25A to 25D the same elements as those of the puncturing apparatuses X1 and X2 described above are denoted by the same reference numerals.
- Lancing device X3 shown in FIGS.25A to 25D is different from lancing device X2 described above (see FIGS. 17 and 24A to 24D) in the form of cam groove 70B in moving plate 7B and lancet 1 in lancet 1.
- the configuration for withdrawing the puncture needle 11 from the skin after piercing the needle 11 into the skin is different.
- the cam groove 70B has an inclined groove 70d for swinging the link member 6.
- the swing pin 61a of the link member 6 is configured to move in the inclined groove 70d when the moving plate 7B moves in either the puncturing direction N1 or the retreating direction N2.
- the moving plate 7B is supported by the housing 2 via two coil springs Sp and Sp '.
- the coil spring Sp is for moving the moving plate 7B in the puncture direction N1 mainly by the stored elastic force.
- the coil spring Sp ' mainly stores the spring when the moving plate 7B is moved in the piercing direction N1, and moves the moving plate 7B after the piercing needle 11 pierces the skin. This is for moving in the evacuation direction N2.
- Coil spring Sp, Sp f in a state that has not been acting load from the outside to the moving plate.
- 7B sauce ⁇ the balance of mutual rocking pin 61a in this case is configured so as to be positioned at the center of the inclined groove portion 70d I have.
- the entire link member 6 rotates clockwise in the drawing, and the lancet holder 8 and thus the lancet 1 move in the puncturing direction N1.
- the lancet is mainly driven by the elastic force of the coil spring Sp '.
- a force in the retreating direction N2 acts on the shaft holder 8, and the swing pin 61a moves in the inclined groove 70d.
- the link member 6 rotates counterclockwise in the figure to move the lancet holder 8 and thus the lancet 1 in the retreating direction N2, and the puncture needle 11 is pulled out of the skin.
- FIGS. a fourth embodiment of the present invention will be described with reference to FIGS.
- the same reference numerals are given to the same elements as those of puncturing apparatuses X1 and X2 described above.
- Lancing device X4 shown in FIG. 26 is different from lancing device X2 described above (see FIG. 17 and FIGS. 24A to 24D) in the configuration of cam groove 70C in link member 6C and transfer plate 7C. Is different.
- the link member 6C is used to engage the large-diameter oscillating pin 61c and the small-diameter oscillating pin 61d for engaging with the cam groove 70C, and the notch 80 of the lancet holder 8. Swing pin 62Ca.
- the large-diameter swing pin 61c has a larger diameter than the small-diameter swing pin 61d.
- a rotary pin 63C is provided at a substantially intermediate position between the large-diameter swing pin 61c and the small-diameter swing pin 61d.
- the rotating pin 63C is supported by the housing 2 so as to be movable in directions N3, N4 intersecting the puncturing and retreating directions N1, N2.
- the rotating pin 63C is movable in the N3, N4 direction by providing, for example, a long hole extending in the N3, N4 direction in the housing 2 and supporting the long hole in the long hole.
- the cam groove 70C has a wide groove 73C and a narrow groove 74C.
- the wide groove portion 73C has a form in which two linear portions 73Ca and 73Cb are connected by an inclined portion 73Cc.
- the length dimensions of the straight portions 73Ca, 73Cb and the inclined portion 73Cc are set to be the same or substantially the same as the distance between the large-diameter oscillating pin 61c and the small-diameter oscillating pin 61d.
- the width of the wide groove 73C is equal to or larger than the diameter of the large-diameter swing pin 61c.
- the narrow groove portion 74C has a form in which the inclined portion 74Ca and the linear portion 74Cb are connected.
- the inclined portion 74Ca is parallel to the inclined portion 73Cc of the wide groove portion 73C, and the interval between the inclined portion 73Cc and the inclined portion 74Ca is large in the puncture and retreat directions N1 and N2. It substantially matches the distance between 61c and the small-diameter swing pin 61d.
- the end of the inclined portion 73Cc is connected to the straight portion 73Ca of the wide groove 73C.
- the end of the straight portion 74Cb is connected to the wide groove 73C at the boundary between the straight portion 73Cb and the inclined portion 73Cc of the wide groove 73C.
- the lengths of the inclined portion 74Ca and the straight portion 74Cb are set to be the same or substantially the same as the distance between the large-diameter oscillating pin 61c and the small-diameter oscillating pin 61d.
- the width of the narrow groove 74C is equal to or larger than the diameter of the small-diameter swing pin 61d, and is smaller than the diameter of the large-diameter swing pin 61c.
- both the large-diameter oscillating pin 61c and the small-diameter oscillating pin 61d have the wide groove 73C. Is located at 73Cb.
- the moving plate 7C is configured to be fixed to the housing 2 in a state where the coil spring Sp has stored the elastic force by moving the moving plate 7C in the puncturing direction N1. .
- the large-diameter oscillating pin 61c moves along the linear portion 73Cb of the wide groove 73C, and the small-diameter oscillating pin 61d moves along the linear portion 74Cb of the narrow groove 74C. Moving. Subsequently, as shown in FIG. 29C, the small-diameter oscillating pin 61d moves on the inclined portion 74Ca of the narrow groove portion 74C, while the large-diameter oscillating pin 61c has a diameter larger than the width of the narrow groove portion 74C. Therefore, the narrow groove portion 74C cannot be moved, and the inclined portion 73Cc of the wide groove portion 73C moves.
- the large-diameter oscillating pin 61c and the small-diameter oscillating pin 61d maintain the state of being aligned in the puncturing and retreating directions N1 and N2, and are inclined while moving the entire link member 6 in the N4 direction in the figure. Move the parts 73Cc and 74Ca. Thereafter, as shown in FIG. 29D and FIG. 29E, both the large-diameter oscillating pin 61c and the small-diameter oscillating pin 61d move on the linear portion 73Ca of the wide groove 73C.
- both the large-diameter swing pin 61c and the small-diameter swing pin 61d move in the wide groove 73C. More specifically, the large-diameter oscillating pin 61c moves along the linear portion 73Ca, the inclined portion 73Cc, and the linear portion 73Cb, and the small-diameter oscillating pin 61d moves along the linear portion 73Ca and the inclined portion 73Cc. That is, both the large-diameter swing pin 61c and the small-diameter swing pin 61d move through the inclined portion 73Cc.
- Puncturing operation similar to that of puncturing apparatus X4 can also be achieved by configuring the cam groove and link member as follows.
- the cam groove two wide grooves corresponding to the wide groove 73C and the narrow groove 74C in the cam groove 70C of the puncturing device X4 are provided, and the widths thereof are the same and the depths are different. I do.
- the link member two pins corresponding to the large-diameter oscillating pin 61c and the small-diameter oscillating pin 61d in the link member 6 of the puncture device X4 are provided with the same diameter, and the lengths of the pins are different. It shall be assumed.
- FIGS. 31A to 31D and FIGS. 32A to 32D the same reference numerals are given to the same elements as those of puncturing apparatuses X1 and X2 described above.
- puncturing apparatus X5 is different from puncturing apparatus X2 (see FIG. 17 and FIGS. 24A to 24D) in the configuration of cam groove 70D in moving plate 7D, link member 6 and moving plate.
- the operation of 7D is different.
- the cam groove 70D has a form in which the straight groove portion 70c (see FIG. 22) of the cam groove 70 in the puncture device X2 is omitted. That is, it has a form in which two inclined groove portions 70Da and 70Db are continuously provided. These inclined grooves 70Da and 70Db are formed at a uniform depth.
- the link member 6 is movable in directions N3 and N4 orthogonal to the puncturing and retreating directions N1 and N2, and is rotatable about a rotation pin 63.
- the link member 6 is not shown in the drawing, but extends, for example, in the housing 2 in the N3 and N4 directions.
- a long hole is provided, and the rotating pin 63 is supported in the long hole, so that the hole can be moved in the directions of N3 and N4.
- the moving plate 7D has an inclined surface 75D and a stopper surface 76D, and is movable in the drilling or retreating directions # 1, # 2 and the arrows # 3, # 4.
- the moving plate 7D can be moved in the piercing or retracting directions # 1 and # 2 together with the urging guide 9D and the operating member 71D, and can be moved in the # 3 and # 4 directions independently of the urging guide 9D and the operating member 71D. Have been.
- the biasing guide 9D has a space 90D for allowing the moving plate 7D to move in the ⁇ 3, ⁇ 4 directions, and a pair of coils 91D, 92D arranged in this space 90D.
- the urging guide 9D and the moving plate 7D are connected.
- the moving plate 7D and the urging guide 9D are provided with stop portions 77D and 93D for restricting the movement of the moving plate 7D in the direction of arrow N4. Therefore, when no external load is applied to the moving plate 7D, the movement in the N4 direction is restricted by the stopper portions 77D and 93D, and the moving plate 7D is urged in the arrow N4 direction by the coil springs 91D and 92D.
- the operating member 71D is configured to be movable only in the puncturing and retreating directions N1 and N2. Such a movement form of the operation member 71D can be achieved by, for example, providing a guide for restricting the movement of the operation member 71D in the N3 and N4 directions with respect to the housing 2.
- the operation member 71D has an inclined surface 71Da and a stopper surface 71Db.
- the inclined surface 71Da is a portion for bringing the moving plate 7D into contact with the inclined surface 75D of the moving plate 7D when moving the moving plate 7D in the direction of arrow N3.
- the stop surface 7IDb is a portion for moving the movable plate 7D in the puncturing direction N3 or for bringing the movable plate 7D into contact with the stop surface 76D of the movable plate 7D when moving in the retracting direction N2.
- the moving plate 7D moves the operation member 71D in the puncturing direction N1, thereby moving the operating member 71D together with the biasing guide 9D in the puncturing direction N1. It is possible. At this time, check that the movement of the operating member 71D in the directions of the arrows N3 and N4 is restricted. As shown in FIG. 31A and FIG.
- the swing pin 61a moves in the inclined groove portions 70Da and 70Db. While the swing pin 61a moves in the inclined groove 70Db, the link member 6 rotates counterclockwise in the drawing, and the lancet holder 8 is moved in the puncturing direction N1. On the other hand, while the swing pin 61a moves in the inclined groove 70Da, the link member 6 rotates clockwise in the drawing, and the lancet holder 8 is moved in the retracting direction N2.
- the moving plate 7D is moved by a certain distance, the coil panels Sp, 91D and 92D are fixed to the housing 2 in a state where they are urged in the retreat direction N2 and the arrow N4 direction with the elastic force accumulated. Is done.
- the lancet holder 8 In such a fixing operation of the moving plate 7D, the lancet holder 8 is moved in the puncture direction N1 when the swing pin 61a moves in the inclined groove 70Db, but the lancet holder 8 moves the moving plate 7D by the arrow N3.
- the puncture needle 11 of the lancet 1 is housed even if the lancet 1 is previously mounted on the lancet holder 8 because the lancet 1 has been lifted in the evacuation direction N2 by moving the lancet 1 in advance. Protruding from 2 is avoided.
- the urging guide 9D moves in the puncturing or retreating directions N1 and N2 in a state of being in contact with the inner surface of the housing 2, but the dynamic frictional force between the urging guide 9D and the housing 2 is small. It is preferable to configure so that For example, it is preferable to smooth the inner surface of the housing 2 or the outer surface of the urging guide 9D, or to provide a plurality of slits and recesses to reduce the contact area.
- the present invention is not limited to the above-described first to fifth embodiments, and can be variously modified.
- the moving plates 31, 7A to 7D are configured to be moved by the elastic force of the coil panel Sp.
- the moving plates 31, 7A to 7D are formed by using elastic members other than the coil panel Sp.
- the driving force may be applied to 7A to 7D, or the moving plates 31, 7A to 7D may be moved by using a driving force such as an air force or an electromagnetic force.
- the puncture needle 11 was detachable from the lancet holders 32 and 8 as a form of the lancet 1, but the puncture needle 11 was integrated into a moving body that performs the same operation as the lancet holders 32 and 8. Is also good.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005505397A JP4621853B2 (ja) | 2003-04-11 | 2004-04-12 | 穿刺装置 |
EP04726912A EP1614382B1 (en) | 2003-04-11 | 2004-04-12 | Needle insertion device |
US10/552,841 US8114108B2 (en) | 2003-04-11 | 2004-04-12 | Lancing apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-107869 | 2003-04-11 | ||
JP2003107869 | 2003-04-11 | ||
JP2003-392743 | 2003-11-21 | ||
JP2003392743 | 2003-11-21 |
Publications (1)
Publication Number | Publication Date |
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WO2004091401A1 true WO2004091401A1 (ja) | 2004-10-28 |
Family
ID=33302198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005223 WO2004091401A1 (ja) | 2003-04-11 | 2004-04-12 | 穿刺装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8114108B2 (ja) |
EP (1) | EP1614382B1 (ja) |
JP (1) | JP4621853B2 (ja) |
WO (1) | WO2004091401A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009063999A1 (ja) * | 2007-11-16 | 2009-05-22 | Arkray, Inc. | 穿刺装置 |
JP2010511424A (ja) * | 2006-12-01 | 2010-04-15 | メディパーパス ピーティーイー リミテッド | 切開を行うための装置 |
JP2015531660A (ja) * | 2012-09-13 | 2015-11-05 | ファセット テクノロジーズ エルエルシーFacet Technologies, LLC | 穿刺装置用のプッシュ型装填機構 |
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Also Published As
Publication number | Publication date |
---|---|
EP1614382A1 (en) | 2006-01-11 |
JPWO2004091401A1 (ja) | 2006-07-06 |
US8114108B2 (en) | 2012-02-14 |
JP4621853B2 (ja) | 2011-01-26 |
US20060200181A1 (en) | 2006-09-07 |
EP1614382A4 (en) | 2010-03-24 |
EP1614382B1 (en) | 2012-07-11 |
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