US20110130781A1 - Method of setting lancing member to lancing device, lancing device, and cam mechanism - Google Patents
Method of setting lancing member to lancing device, lancing device, and cam mechanism Download PDFInfo
- Publication number
- US20110130781A1 US20110130781A1 US13/018,010 US201113018010A US2011130781A1 US 20110130781 A1 US20110130781 A1 US 20110130781A1 US 201113018010 A US201113018010 A US 201113018010A US 2011130781 A1 US2011130781 A1 US 2011130781A1
- Authority
- US
- United States
- Prior art keywords
- lancet
- housing
- holder
- lancing
- cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1486—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using enzyme electrodes, e.g. with immobilised oxidase
-
- 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
- A61B5/150358—Strips for collecting blood, e.g. absorbent
-
- 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
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/15058—Joining techniques used for protective means
- A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
-
- 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
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
-
- 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
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150725—Procedure for removing protection means at the time of piercing removal procedure linked to further actions, e.g. cocking of the piercing device, which indicate that the piercing device is used or tempered
-
- 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
- A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
-
- 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
- A61B5/150755—Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
- A61B5/150061—Means for enhancing collection
- A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
Definitions
- the present invention relates to a technique for simply and properly setting lancing member to a lancing device to sample body fluid such as blood.
- Lancing devices are used by diabetics for sampling blood to measure the blood-sugar level.
- a lancing device generally comprises a cylindrical housing and a lancet holder reciprocally movable in the housing. A lancet is held in the lancet holder, and then the front end of the housing is pressed onto the skin. Thereafter, the lancet holder is advanced to pierce the skin by the needle of the lancet. In this way, the skin bleeds and blood can be sampled.
- FIG. 18A A conventional lancet, disclosed in JP-A-H6-133955, is shown in FIG. 18A .
- the illustrated lancet 9 includes a metal needle 91 which is supported by a body 90 made of synthetic resin.
- the body 90 is integrally formed by resin molding with a cap 92 for covering a tip end of the needle 91 .
- the boundary 93 between the cap 92 and the body 90 is a narrow portion.
- the needle 91 of the lancet 9 is covered by the cap 92 , so that the needle 91 unused is kept clean.
- the cap 92 is twisted to break the boundary 93 to detach the cap 92 and the body 90 , as shown in FIG. 18B , thereby exposing the tip end of the needle 91 .
- the setting of the lancet 9 to the lancing device is performed after the cap 92 is detached from the lancet 9 , in a manner such that the separated lancet 9 is attached to a lancet holder of the lancing device.
- the exposed needle 91 of the lancet 9 may prick a finger of the user during the setting operation.
- a solution to this problem may be detaching the cap 92 from the lancet 9 after the lancet 9 is attached to the lancet holder of the lancing device.
- the user still needs to pinch the cap 92 and twist it for breaking the boundary 93 .
- this task is troublesome.
- a typical lancet-setting operation with respect to a lancing device may entail appropriate pushing of the lancet or lancet holder into the housing of the lancing device. In such a case, the setting of the lancet 9 can be more troublesome.
- An object of the present invention is to provide a method of setting lancing member in lancing device as well as a lancing device for solving or alleviating the above problem. Further, another object of the present invention is to provide a cam mechanism for being used in such lancing device.
- a method of setting lancing member in lancing device comprises: a first step for causing a lancing member formed integral with a cap covering a needle to be held by a holder of a lancing device; and a second step for breaking a boundary between the cap and the lancing member by rotating the lancing member relative to the cap utilizing rotating means prearranged at the lancing device.
- the second step is performed during or after the first step.
- the method of the present invention further comprises a third step for exposing the needle by detaching the cap from the lancing member after the second step.
- the lancing device comprises a housing including a tip end formed with an opening, and the holder is reciprocally movable in the housing.
- the rotating means comprises a cam mechanism for rotating the holder and the lancing member utilizing a pressing force exerted when the holder is pressed into the housing by the lancing member.
- the lancing member is held by a supporting member including a sheath.
- the sheath is slidably fitted to an end of the housing. The lancing member is pressed against the holder to be pushed into the housing.
- the sheath may be generally circular or generally polygonal.
- the supporting member may hold an analyzer.
- the analyzer is attached to the lancing device when the lancing member is held by the holder.
- the rotating means may comprise a motor.
- the lancing member is rotated by driving force of the motor.
- a lancing device comprising: a holder for holding a lancing member; a moving mechanism for advancing the holder in a predetermined direction; and rotating means for rotating the lancing member when the lancing member is about to be held by the holder or after the lancing member is held by the holder.
- the holder may hold the lancing member in a manner such that the holder and the lancing member are not rotatable relative to each other.
- the rotating means rotates the holder together with the lancing member.
- the rotating means may comprise a cam mechanism for rotating the holder when the holder retracts in a direction opposite to the predetermined direction.
- the lancing device may further comprise a cylindrical housing that contains the holder therein and includes a tip end formed with an opening.
- the cam mechanism includes a first groove which is provided at one of the housing and the holder and is inclined relative to a longitudinal axis of the housing, and also includes a protrusion which is provided at the other one of the housing and the holder and is fitted in the first groove.
- the cam mechanism may further include a second groove connected to the first groove and extending in parallel to the axis of the housing.
- the protrusion passes through the second groove when the holder advances.
- the rotating means may comprise a motor and a member for transmitting rotating force of the motor to the holder.
- the lancing device may further comprise a holding portion for removably holding an analyzer used for analyzing a sample taken by piercing process.
- the lancing device may further comprise a control circuit for analyzing the sample using the analyzer.
- a cam mechanism comprising: a cylindrical housing; a movable member contained in the housing for moving reciprocally in first and second directions parallel to a longitudinal axis of the housing; a first groove inclined relative to the axis of the housing and a second groove connected to the first groove and extending linearly in parallel to the axis of the housing, the first and the second grooves being provided at one of the housing and the movable member; and a protrusion provided at the other one of the housing and the movable member, the protrusion extending into the first groove and the second groove.
- the protrusion moves in the first groove when the movable member moves in the first direction, while moves in the second groove when the movable member moves in the second direction.
- FIG. 1 is a perspective view illustrating an example of a lancing unit, with some part removed, used for a lancing member setting method according to the present invention.
- FIG. 2 is a sectional side view showing the unit of FIG. 1 .
- FIG. 3A is a perspective view illustrating an example of a capped lancet held in the lancing unit shown in FIG. 1
- FIG. 3B is a sectional view of the lancet.
- FIG. 4 is a perspective view illustrating an example of a sensor holder held in the lancing unit shown in FIG. 1 .
- FIG. 5A is a perspective view illustrating an example of a sensor attached to the sensor holder shown in FIG. 4
- FIG. 5B is an exploded perspective view of the sensor.
- FIG. 6 is an exploded view, partly in section, showing the lancing unit of FIG. 1 .
- FIG. 7 is a sectional view illustrating an example of a lancing device according to the present invention.
- FIG. 8 is an enlarged sectional view of a principal part of the device shown in FIG. 7 .
- FIG. 9 illustrates an example of a cam mechanism provided in the lancing device shown in FIG. 7 .
- FIGS. 10A-10E illustrate the workings of the cam mechanism shown in FIG. 9 .
- FIG. 11 is an enlarged sectional view illustrating an earlier stage of attaching the lancet and the sensor holder of the lancing unit to the lancing device shown in FIG. 7 .
- FIG. 12 is a sectional view illustrating an intermediate stage of attaching the lancet and the sensor holder of the lancing member to the lancing device shown in FIG. 7 .
- FIG. 13 is a sectional view showing a principal part of FIG. 12 .
- FIG. 14 is an enlarged sectional view illustrating a final stage where the fixing of the lancet and sensor holder of the lancing unit to the lancing device shown in FIG. 7 has been completed.
- FIG. 15 is a sectional view illustrating how to use the lancing device shown in FIG. 7 .
- FIG. 16 is a sectional view illustrating how to use the lancing device shown in FIG. 7 .
- FIG. 17 is an enlarged sectional view illustrating another example of a lancing device according to the present invention.
- FIGS. 18A-18B are side views illustrating prior art.
- FIGS. 1-6 illustrate an example of a lancing unit used for a method of setting a lancing member in a lancing device according to the present invention.
- the illustrated lancing unit U is described first.
- the lancing unit U includes a case 1 , a lancet 2 , a cap 29 , and a sensor holder 3 .
- the case 1 in the form of a cap made of e.g. synthetic resin, includes a cylindrical sheath 10 , which is formed with an opening 12 at one end (upper end), and also includes a bottom 11 which is formed integral with the sheath 10 at the other end (lower end).
- the case 1 is an example of a ‘supporting member including a sheath’ according to the present invention.
- the case 1 is externally fixed to a predetermined portion of a lancing device A, and the sheath 10 is internally formed with a stopper 13 for preventing rotation of the case 1 in the lancing device.
- the opening 12 of the case 1 is closed by a film 14 serving as a lid attached to the top of the case, so that the case 1 is hermetically sealed.
- the film 14 is made of aluminum foil or laminated film of aluminum foil and resin film, for example.
- the lancet 2 includes a metal needle 21 and a synthetic resin body 20 for holding the needle 21 .
- the body 20 is formed with a plurality of ribs 22 extending in parallel to the needle 21 , and with a groove 23 , so that it can be properly attached to a lancet holder 5 of the lancing device A, as will be described later.
- the cap 29 formed by resin molding, is integral with the body 20 to cover the tip end of the needle 21 protruding from the body 20 , and extends in the longitudinal direction of the needle 21 below the tip end (bottom end) of the body 20 .
- the boundary 28 between the cap 29 and the body 20 is formed narrower than the other portions to facilitate the detaching the cap and the body.
- the cap 29 includes a bottom end formed with a hole 29 a into which a protrusion 15 formed on the bottom 11 of the case 1 is fitted. Thus, the cap 29 is held vertically in the case 1 .
- the case 1 may have a recess formed at the bottom 11 , while the cap 29 may have a protrusion formed at its bottom to be fitted into the recess.
- the cap 29 is fixed to the case 1 by an adhesive for reliable attachment to the case 1 .
- the adhesive may be replaced with ultrasonic welding or heat welding, for example. This may also apply to attachment of other parts of the lancing unit.
- the needle 21 of the lancet 2 is sterilized by e.g. gamma irradiation before being arranged in the case 1 .
- the case 1 is provided with a drying agent (not shown) for quality protection of a sensor S which will be described later.
- the cap 29 and the body 20 may be integrally formed with the case 1 , in place of being formed separately.
- the sensor holder 3 holds a sensor S used for blood analysis.
- the sensor holder 3 is made of synthetic resin, and as shown in FIG. 4 , includes a side wall 31 which is arcuate in section and a horizontal wall 32 which is integrally formed with the side wall 31 .
- the horizontal wall 32 includes an inclined underside to which the sensor S is attached.
- the sensor S is in the form of a chip and may have a structure shown in FIGS. 5A-5B .
- the sensor S includes a base plate 390 having an upper surface provided with a reagent 39 a and a pair of electrodes 39 b, where the reagent contains an enzyme reactive to the glucose in blood in a certain way (e.g. oxidation), and the electrodes electrically detect the reaction.
- a capillary 393 is formed by two separate spacers 391 and a cover 392 which is stacked on the spacers 391 .
- the assembly of the base plate 390 , spacers 391 and cover 392 is formed with a recess 394 as an inlet of blood. When supplied to the recess 394 , the blood flows through the capillary 393 by capillary action, to be led to the reagent 39 a.
- the horizontal wall 32 of the sensor holder 3 is formed with a pair of through-holes 32 a and a pair of supporting wall portions 32 b.
- the through-holes 32 a permit insertion of a pair of probes 62 of a lancing device A, so that the probes 62 come into contact with the electrodes 39 b of the sensor S.
- the supporting portions 32 b can be externally pressed onto the bottom portion 29 b of the cap 29 in a sandwiching manner.
- the bottom portion 29 b of the cap 29 may be cylindrical, while the supporting wall portions 32 b are substantially arcuate correspondingly to the outer circumference of the cap's bottom portion. As shown in FIGS.
- the sensor holder 3 is supported by the case 1 via the cap 29 . It should be noted here that the sensor holder 3 is slidable relative to the cap 29 in the longitudinal direction of the cap 29 , and further, as described below, the sensor holder can be detached from the cap 29 .
- the reagent 39 a of the sensor S is kept free from moisture, thereby preventing quality deterioration in the short term.
- the needle 21 of the lancet 2 is covered by the cap 29 , and the cap 29 is integrally formed with the body 20 of the lancet 2 . Due to such highly hermetical sealing, the lancet 2 is kept free from contamination even before the lancet 2 is set in the case 1 .
- the lancet 2 integral with the cap 29 is set in the case 1 , and then the sensor holder 3 is attached to the cap 29 .
- the film 14 is provided to cover the opening 12 of the case 1 .
- the setting of the lancet 2 is performed by fixing the protrusion 15 of the case 1 into the hole 29 a of the cap 29 , the setting of the sensor holder 3 is performed by externally fitting the supporting portions 32 b to the cap 29 . In this manner, it is easy to assemble the lancing unit U, whereby the production costs are lowered.
- FIGS. 7 and 8 illustrate an example of a lancing device according to the present invention.
- the lancing device A of the present embodiment includes a housing 4 , a lancet holder 5 , a latch 59 , and a cam mechanism C.
- the housing 4 includes three sleeves 40 a - 40 c which are serially connected to each other, each serving as a front portion, an intermediate portion, and a rear portion, the housing being held by an outer case 70 .
- the tip end (bottom end) of the sleeve 40 a formed with an opening 41 , is brought into contact with human skin.
- the sleeve 40 a is formed and sized to be slidably fitted with the case 1 of the lancing unit U.
- the sleeve 40 a is externally formed with a groove 42 into which the stopper 13 of the case 1 is fitted.
- the groove 42 extends lengthwise of the sleeve 40 a to prevent the case 1 from rotating when the case 1 is externally fitted to the sleeve 40 a.
- the sleeve 40 a is provided with a holding portion 6 .
- the holding portion 6 serves to hold the sensor holder 3 of the lancing unit U and includes an attachment 60 fixed to the sleeve 40 a.
- the attachment 60 is made of synthetic resin and includes a space 60 a formed by first and second walls 60 b, 60 c. As shown in FIGS. 12 and 13 , the space 60 a permits the insertion, from its bottom side, of the side wall 31 of the sensor holder 3 of the lancing unit U. A width s 1 of the space 60 a is larger than the thickness t 1 of the side wall 31 of the sensor holder 3 .
- the holding portion 6 is provided with a spring 61 .
- the spring 61 exerts urging force F which presses the side wall 31 toward the second wall 60 c.
- the urging force F of the spring 61 presses the side wall 31 onto the second wall 60 c, whereby the sensor holder 3 is held by the holding portion 6 .
- appropriate engaging means which can come into releasable engagement with the sensor holder 3 and the holding portion 6 .
- a pair of probes 62 is held by the second wall 60 c of the holding portion 6 .
- the probes 62 extending in the longitudinal direction of the housing 4 , come into contact with the electrodes 39 b of the sensor S.
- Each probe 62 includes a retractable tip end 62 a.
- each tip end extends downwardly by urging force of a suitable spring (not shown).
- a suitable spring not shown
- FIGS. 12-14 when the sensor holder 3 is attached to the holding portion 6 , the tip end 62 a is pressed upwardly by the sensor S and retracts.
- the outer case 70 is provided with a control circuit 79 electrically connected to the probes 62 .
- the control circuit 79 includes a CPU and attached memory, for example, for calculating glucose level in blood introduced to the reagent 39 a, based on an electric current measured by the probes 62 .
- the lancet holder 5 for holding and moving the lancet 2 is an example of a holder (for holding a lancing member).
- the lancet holder 5 is rotatably inserted in the sleeve 40 b, while also being slidable in the longitudinal direction of the sleeve.
- the lancing holder 5 includes a bottom portion formed with a recess 50 .
- the recess 50 permits the insertion of the body 20 of the lancet 2 , so that the lancing holder 5 removably holds the lancet 2 .
- the recess 50 is internally formed with a plurality of grooves 50 a in which the ribs 22 of the body 20 of the lancet 2 are fitted in. Due to this structure, the body 20 and the lancet holder 5 are prevented from rotating relatively when the body 20 is inserted in the recess 50 . It should be noted that either of the grooves 50 a and the ribs 22 is partially or wholly formed in spirals. Thus, when the body 20 of the lancet 2 is inserted in the recess 50 , as will be described later, the body 20 and the lancet holder 5 rotate in a predetermined direction through a relatively small angle.
- the cam mechanism C is made up of the lancet holder 5 and the housing 4 .
- the lancet holder 5 includes a head portion 51 which is circumferentially formed with a plurality of protrusions 52 at an equal angular spacing.
- the protrusions 52 are inserted into and guided by first grooves and second grooves 43 A, 43 B which are internally formed in the sleeve 40 b of the housing 4 .
- the lancet holder 5 is an example of a moving portion of a cam mechanism according to the present invention.
- the first grooves 43 A are inclined relative to the longitudinal axis of the sleeve 40 b for rotating the lancet holder 5 when the lancet holder 5 is pushed upward by the lancet 2 of the lancing unit U.
- the second grooves 43 B extend in parallel to the axis of the sleeve 40 b for guiding the lancet 2 and the lancet holder 5 linearly toward the tip end of the housing 4 to pierce human skin by the lancet 2 .
- FIGS. 10A-10E show part of the first and the second grooves 43 A, 43 B expanded in a plane, where these grooves are connected to each other (in the figures, areas other than the first and second grooves 43 A, 43 B are indicated by hatching).
- the first and second grooves include ends (bottom ends) 43 A′, 43 B′ which are arranged circumferentially of the housing 4 and connected to each other so that the total width s 4 is relatively large.
- the other ends (top ends) 43 A′′, 43 B′′ of the first and the second grooves are connected to each other in a manner such that the end 43 B′′ projects beyond the end 43 A′′ by an appropriate distance s 5 .
- the latch 59 is connected to the top of the lancet holder 5 , and slidably inserted in the housing 4 .
- a bushing 58 is non-rotatably fitted into the bottom of the latch 59 A.
- the top of the lancet holder 5 A is formed with a plurality of claws 53 to be rotatably inserted in the bushing 58 .
- the latch 59 is formed with a pair of claws 59 a at the top. Each of the claws 59 a comes into engagement with an end of one of the cutouts 44 formed at the sleeve 40 c. As will be described below, the engagement is established when the lancet holder 5 and the latch 59 are pressed upwardly by the lancet 2 of the lancing unit U.
- the sleeve 40 is provided, at the top, with a latch-releasing pusher 71 and an operating cap 72 connected to the pusher.
- a spring 73 is provided between the pusher 71 and an intermediate wall 59 b of the latch 59 .
- the spring 73 is a compressed coil spring, for example.
- the operating cap 72 is slidable relative to the sleeve 40 c in the longitudinal direction of the sleeve.
- the pusher 71 moves downward to press the latch claws 59 a.
- the claws 59 a are forcibly disengaged from the ends of the cutouts 44 , whereby the latch 59 and the lancet holder 5 are advanced downward due to the restoring force of the compressed spring 73 .
- the housing 4 is internally provided with a return spring 74 for moving the lance holder 5 and the latch 59 back after they have advanced.
- the case 1 of the lancing unit U is externally fitted to the sleeve 40 a of the lancing device A.
- the film 14 is removed from the case 1 to open the opening 12 .
- the case 1 is externally fitted to the sleeve 40 a
- the body 20 of the lancet 2 is fitted into the recess 50 of the lancet holder 5 to be held at the lancet holder 5 .
- the case 1 is pressed upwardly in the direction of an arrow N 1 , whereby the lancet holder 5 is pressed upwardly by the lancet 2 .
- the lancet holder 5 and the body 20 of the lancet 2 rotate in the direction of an arrow N 2 , until the boundary 28 of the lancet 2 and the cap 20 is twisted to be broken.
- the protrusions 52 of the lancet holder 5 are initially placed within the end 43 B′ of the second groove 43 B.
- each protrusion 52 is moved to the end 43 A′ of the groove 43 A, as indicated by an arrow N 3 in FIG. 10B .
- This movement is caused by the rotation of the lancet holder 5 when the body 20 is fitted in the recess 50 , because of the spiral form of either the ribs 22 in the body 20 of the lancet 2 or the grooves 50 a in the recess 50 of the lancet holder 5 .
- the lancet holder 5 While the lancet holder 5 is being pressed upwardly by the lancet 2 , the protrusions 52 move within the first grooves 43 A, as shown in FIGS. 10C and 10D . Due to this movement, the lancet holder 5 rotates together with the body 20 of the lancet 2 .
- the cap 20 of the lancing unit U is fixed to the case 1 non-rotatably. Thus, the boundary 28 between the body 20 of the lancet 2 is twisted and then breaks. Different from conventional arts, the user does not need to twist the cap 29 , whereby the breaking of the boundary 28 is performed more easily.
- the protrusion 52 enters the top end 43 B′′ upon arriving at the second groove 43 B.
- the top end 43 B′′ projects beyond the top end 43 A′′ by a predetermined distance, so that the protrusion 52 guided to the projecting end is prevented from swinging circumferentially in the housing 4 .
- the lancet holder 5 can be held stable.
- the first groove 43 A of the cam mechanism C has an inclined angle ⁇ (see FIG. 10D ) which may be enlarged to reduce the force necessary to press the lancet 2 for rotating the lancet holder 5 . In this state, however, the lancet 2 needs to be pressed for a longer distance until the lancet holder 5 is rotated through the desired angle.
- the inclined angle ⁇ is determined so that the lancet holder 5 can be rotated through an appropriate angle to twist the cap 29 off the body 20 of the lancet 2 without compromising the rotational operability of the lancet holder 5 .
- the case 1 is non-rotatable relative to the housing 4 when the case 1 as a whole is externally fitted to the housing 4 .
- the present invention is not limited to this.
- the stopper 13 of the case 1 may pass through the groove 42 of the housing 4 after the protrusion 52 arrives at the portion shown in FIG. 10D , so that the case 1 can rotate relative to the housing 4 . In this way, even if the boundary 28 between the body 20 of the lancet 2 and the cap 29 is not completely broken by rotation of the lancet holder 5 , the user can rotate the case 1 to break the boundary 28 .
- the tip ends 62 a of the probes 62 are pressed upward by the sensor S and come into contact with the electrodes 39 b of the sensor S, while resisting the pressing force.
- the probes 62 and the electrodes 39 b are held in reliable connection.
- the case 1 is removed downward from the sleeve 40 a.
- the boundary 28 between the body 20 of the lancet 2 and the cap 29 has been broken by the twisting, whereby the lancet 2 and the cap 29 are properly divided. Due to this division, the lancet 2 is held by the lancet holder 5 with the needle 21 exposed.
- the cap 29 remains fixed to the case 1 .
- the sensor holder 3 is detached from the cap 29 to be held by the holding portion 6 .
- the lancing device A enables to attach the lancet 2 to the lancet holder 5 , to rotate the lancet holder 5 , to twist a determined portion of the lancet 2 to be broken by the rotation of the lancet holder, and to remove the cap 29 from the body 20 by simple sliding operation of externally fitting and removing the case 1 to the sleeve 40 a.
- setting of the lancet 2 is conveniently facilitated. As a user needs not to touch the lancet 2 during setting process of the lancet 2 , there is no risk that the needle 21 accidentally pierces the user's finger.
- the cam mechanism C is used for rotating the lancet holder 5 , where the rotation of the lancet holder 5 is effectuated utilizing the pushing motion of the lancet holder 5 . In this manner, no separate driving source such as a motor is needed, thereby reducing overall costs. Further, the cam mechanism C is constructed by using the housing 4 and the lancet holder 5 , whereby the number of required parts is advantageously small and the increase in size can be prevented.
- the setting of the lancet 2 is performed simultaneously with the latching of the latch 59 and the setting of the sensor holder 3 to the holding portion 6 . This is more convenient for the user. After detached from the body 20 , the cap 29 remains fixed to the case 1 . Thus, the disposal thereof is easy.
- the side wall 31 of the sensor holder 3 is pressed against the second wall 60 c by the urging force F of the spring 61 .
- the sensor holder 3 is moved toward the center of the sleeve 40 a (in direction of an arrow N 4 in FIG. 14 ) by the size of the space 60 a ′ shown in FIG. 13 .
- Such movement of the sensor holder 3 makes the sensor S closer to the lancing portion of the lancet 2 .
- the sensor S is close to the lancing portion, blood from the skin reliably sticks to the sensor S on piercing the skin, as described below.
- the tip end of the sleeve 40 a of the lancing device A is pressed against human skin 99 to be lanced, as shown in FIG. 15 .
- the operating cap 72 is pressed to advance the pusher 71 .
- each claw 59 a is disengaged from the end of the cutout 44 , and then the latch 59 and the lancet holder 5 are moved downward by the urging force of the spring 73 , whereby the needle 21 of the lancet 2 pierces the skin 99 .
- the needle 21 can be prevented from piercing the skin 99 too deeply, by causing the body 20 of the lancet 2 partly to abut on the horizontal wall 32 of the sensor holder 3 .
- the protrusion 52 moves within the second groove 43 B, so that the lancet holder 5 advances linearly. Further, after the linear advancing, the protrusion 52 returns to the initial position shown in FIG. 10A , to be ready to repeat the operation.
- the lancing device A comprises a pump or a pump mechanism for exerting negative pressure within the sleeve 40 a on piercing. Due to this structure, bleeding from the skin 99 is promoted by the negative pressure so that the skin 99 is less pierced by the needle 21 of the lancet 2 , and less damaged.
- the lancing device A may include a display (not shown) such as a liquid crystal display to indicate the calculated value.
- the used lancet 2 and the sensor holder 3 are removed from the lancing device A to be disposed. Such removing process utilizes a tool for inserting in the sleeve 40 a to engage and hold the lancet 2 and the sensor holder 3 . In this sanitary way, a user needs not to directly touch the used lancet 2 and the sensor holder 3 .
- the present invention is not limited to the above embodiment. Specific structure of the lancing device and the members of the cam mechanism according to the present invention may be modified in various ways. Similarly, details of each step in the method of setting the lancing member in the lancing device according to the present invention may be also modified in various ways.
- FIG. 17 illustrates another example of a lancing device according to the present invention.
- the illustrated lancing device includes a housing having a sleeve 49 for reciprocally holding a lancet holder 5 A, and a gear G 1 externally fixed to the circumference of the sleeve 49 .
- the gear G 1 is engaged with a gear G 2 fixed to a drive shaft of a motor M.
- the lancet holder 5 A is externally formed with a pair of protrusions 57 .
- the protrusions 57 are engaged with a pair of slots 49 a formed at the sleeve 49 .
- the motor M is driven to rotate the gear G 2 , then the gear G 1 rotates together with the sleeve 49 , thereby rotating the lancet 5 A.
- the gear G 1 rotates together with the sleeve 49 , thereby rotating the lancet 5 A.
- the lancing device may be provided with a motor for rotating a holder and a lancing member.
- the motor may be operated by a user using a predetermined switch, for example.
- the motor may be automatically switched on to be driven when the lancing member is attached to the holder of the lancing device, so that the user needs not to operate a switch.
- a lancing member and a holder may be rotated during attaching process of the lancing member to the holder, instead of being rotated after the lancing member is held by the holder.
- the holder may be rotated before the attachment has been completed, and the lancing member and the holder are rotated together.
- the lancing member is not necessarily formed integral with the cap. Instead, the lancing member may be formed separate from the cap, and the cap may be attached to the lancing member by an adhesive.
- the cam mechanism it is not necessarily required that the movable member is formed with protrusions and the housing formed with guiding grooves. On the contrary, the movable member may be formed with grooves, and the housing may be formed with protrusions.
- the holder of a lancing device is not limited to the one in which the lancing member is held by fitting insertion.
- the lancing member may be held by a clamping mechanism.
- the mechanism for advancing the holder may various in design other than the one utilizing the restoring force of a spring.
- a lancing device according to the present invention is not limited to be used for measuring the glucose level in blood. Further, a lancing device according to the present invention may be used without attaching an analyzer such as a sensor holder.
Abstract
A lancing member (2) is integrally provided with a cap (29) for covering a needle (21). Upon or after being attached to a holder (5) of a lancing device (A), the lancing member (2) is rotated relative to a cap (29) by a rotator (C). As a result, the boundary (28) between the cap (29) and the lancing member (2) is broken easily to expose the needle (21).
Description
- The present invention relates to a technique for simply and properly setting lancing member to a lancing device to sample body fluid such as blood.
- Lancing devices are used by diabetics for sampling blood to measure the blood-sugar level. Such a lancing device generally comprises a cylindrical housing and a lancet holder reciprocally movable in the housing. A lancet is held in the lancet holder, and then the front end of the housing is pressed onto the skin. Thereafter, the lancet holder is advanced to pierce the skin by the needle of the lancet. In this way, the skin bleeds and blood can be sampled.
- A conventional lancet, disclosed in JP-A-H6-133955, is shown in
FIG. 18A . The illustratedlancet 9 includes ametal needle 91 which is supported by abody 90 made of synthetic resin. Thebody 90 is integrally formed by resin molding with acap 92 for covering a tip end of theneedle 91. Theboundary 93 between thecap 92 and thebody 90 is a narrow portion. - The
needle 91 of thelancet 9 is covered by thecap 92, so that theneedle 91 unused is kept clean. Thecap 92 is twisted to break theboundary 93 to detach thecap 92 and thebody 90, as shown inFIG. 18B , thereby exposing the tip end of theneedle 91. - However, in the prior art, the setting of the
lancet 9 to the lancing device is performed after thecap 92 is detached from thelancet 9, in a manner such that theseparated lancet 9 is attached to a lancet holder of the lancing device. In this way, unfavorably, the exposedneedle 91 of thelancet 9 may prick a finger of the user during the setting operation. - A solution to this problem may be detaching the
cap 92 from thelancet 9 after thelancet 9 is attached to the lancet holder of the lancing device. However, even in this manner, the user still needs to pinch thecap 92 and twist it for breaking theboundary 93. Unfavorably, this task is troublesome. Moreover, a typical lancet-setting operation with respect to a lancing device may entail appropriate pushing of the lancet or lancet holder into the housing of the lancing device. In such a case, the setting of thelancet 9 can be more troublesome. - An object of the present invention is to provide a method of setting lancing member in lancing device as well as a lancing device for solving or alleviating the above problem. Further, another object of the present invention is to provide a cam mechanism for being used in such lancing device.
- According to a first aspect of the present invention, there is provided a method of setting lancing member in lancing device. The method comprises: a first step for causing a lancing member formed integral with a cap covering a needle to be held by a holder of a lancing device; and a second step for breaking a boundary between the cap and the lancing member by rotating the lancing member relative to the cap utilizing rotating means prearranged at the lancing device. The second step is performed during or after the first step.
- Preferably, the method of the present invention further comprises a third step for exposing the needle by detaching the cap from the lancing member after the second step.
- Preferably, the lancing device comprises a housing including a tip end formed with an opening, and the holder is reciprocally movable in the housing. The rotating means comprises a cam mechanism for rotating the holder and the lancing member utilizing a pressing force exerted when the holder is pressed into the housing by the lancing member.
- Preferably, the lancing member is held by a supporting member including a sheath. In the first step, the sheath is slidably fitted to an end of the housing. The lancing member is pressed against the holder to be pushed into the housing. The sheath may be generally circular or generally polygonal.
- Preferably, the supporting member may hold an analyzer. In the first step, the analyzer is attached to the lancing device when the lancing member is held by the holder.
- Preferably, the rotating means may comprise a motor. In the second step, the lancing member is rotated by driving force of the motor.
- According to a second aspect of the present invention, there is provided a lancing device comprising: a holder for holding a lancing member; a moving mechanism for advancing the holder in a predetermined direction; and rotating means for rotating the lancing member when the lancing member is about to be held by the holder or after the lancing member is held by the holder.
- Preferably, the holder may hold the lancing member in a manner such that the holder and the lancing member are not rotatable relative to each other. The rotating means rotates the holder together with the lancing member.
- Preferably, the rotating means may comprise a cam mechanism for rotating the holder when the holder retracts in a direction opposite to the predetermined direction.
- Preferably the lancing device may further comprise a cylindrical housing that contains the holder therein and includes a tip end formed with an opening. The cam mechanism includes a first groove which is provided at one of the housing and the holder and is inclined relative to a longitudinal axis of the housing, and also includes a protrusion which is provided at the other one of the housing and the holder and is fitted in the first groove.
- Preferably, the cam mechanism may further include a second groove connected to the first groove and extending in parallel to the axis of the housing. The protrusion passes through the second groove when the holder advances.
- Preferably, the rotating means may comprise a motor and a member for transmitting rotating force of the motor to the holder.
- Preferably, the lancing device may further comprise a holding portion for removably holding an analyzer used for analyzing a sample taken by piercing process.
- Preferably, the lancing device may further comprise a control circuit for analyzing the sample using the analyzer.
- According to a third aspect of the present invention, there is provided a cam mechanism comprising: a cylindrical housing; a movable member contained in the housing for moving reciprocally in first and second directions parallel to a longitudinal axis of the housing; a first groove inclined relative to the axis of the housing and a second groove connected to the first groove and extending linearly in parallel to the axis of the housing, the first and the second grooves being provided at one of the housing and the movable member; and a protrusion provided at the other one of the housing and the movable member, the protrusion extending into the first groove and the second groove. The protrusion moves in the first groove when the movable member moves in the first direction, while moves in the second groove when the movable member moves in the second direction.
- Other features and advantages of the present invention will be apparent from the following description of the embodiments according to the present invention.
-
FIG. 1 is a perspective view illustrating an example of a lancing unit, with some part removed, used for a lancing member setting method according to the present invention. -
FIG. 2 is a sectional side view showing the unit ofFIG. 1 . -
FIG. 3A is a perspective view illustrating an example of a capped lancet held in the lancing unit shown inFIG. 1 , whileFIG. 3B is a sectional view of the lancet. -
FIG. 4 is a perspective view illustrating an example of a sensor holder held in the lancing unit shown inFIG. 1 . -
FIG. 5A is a perspective view illustrating an example of a sensor attached to the sensor holder shown inFIG. 4 , whileFIG. 5B is an exploded perspective view of the sensor. -
FIG. 6 is an exploded view, partly in section, showing the lancing unit ofFIG. 1 . -
FIG. 7 is a sectional view illustrating an example of a lancing device according to the present invention. -
FIG. 8 is an enlarged sectional view of a principal part of the device shown inFIG. 7 . -
FIG. 9 illustrates an example of a cam mechanism provided in the lancing device shown inFIG. 7 . -
FIGS. 10A-10E illustrate the workings of the cam mechanism shown inFIG. 9 . -
FIG. 11 is an enlarged sectional view illustrating an earlier stage of attaching the lancet and the sensor holder of the lancing unit to the lancing device shown inFIG. 7 . -
FIG. 12 is a sectional view illustrating an intermediate stage of attaching the lancet and the sensor holder of the lancing member to the lancing device shown inFIG. 7 . -
FIG. 13 is a sectional view showing a principal part ofFIG. 12 . -
FIG. 14 is an enlarged sectional view illustrating a final stage where the fixing of the lancet and sensor holder of the lancing unit to the lancing device shown inFIG. 7 has been completed. -
FIG. 15 is a sectional view illustrating how to use the lancing device shown inFIG. 7 . -
FIG. 16 is a sectional view illustrating how to use the lancing device shown inFIG. 7 . -
FIG. 17 is an enlarged sectional view illustrating another example of a lancing device according to the present invention. -
FIGS. 18A-18B are side views illustrating prior art. - Preferred embodiments according to the present invention will be described below with reference to the drawings.
-
FIGS. 1-6 illustrate an example of a lancing unit used for a method of setting a lancing member in a lancing device according to the present invention. For facilitating the understanding of the present invention, the illustrated lancing unit U is described first. - As shown in
FIG. 1 andFIG. 2 , the lancing unit U includes acase 1, alancet 2, acap 29, and asensor holder 3. - The
case 1, in the form of a cap made of e.g. synthetic resin, includes acylindrical sheath 10, which is formed with anopening 12 at one end (upper end), and also includes a bottom 11 which is formed integral with thesheath 10 at the other end (lower end). Thecase 1 is an example of a ‘supporting member including a sheath’ according to the present invention. As will be described later, thecase 1 is externally fixed to a predetermined portion of a lancing device A, and thesheath 10 is internally formed with astopper 13 for preventing rotation of thecase 1 in the lancing device. Theopening 12 of thecase 1 is closed by afilm 14 serving as a lid attached to the top of the case, so that thecase 1 is hermetically sealed. Thefilm 14 is made of aluminum foil or laminated film of aluminum foil and resin film, for example. - As shown in
FIGS. 3A-3B , thelancet 2 includes ametal needle 21 and asynthetic resin body 20 for holding theneedle 21. Thebody 20 is formed with a plurality ofribs 22 extending in parallel to theneedle 21, and with agroove 23, so that it can be properly attached to alancet holder 5 of the lancing device A, as will be described later. - The
cap 29, formed by resin molding, is integral with thebody 20 to cover the tip end of theneedle 21 protruding from thebody 20, and extends in the longitudinal direction of theneedle 21 below the tip end (bottom end) of thebody 20. Theboundary 28 between thecap 29 and thebody 20 is formed narrower than the other portions to facilitate the detaching the cap and the body. As shown inFIG. 6 , thecap 29 includes a bottom end formed with ahole 29 a into which aprotrusion 15 formed on the bottom 11 of thecase 1 is fitted. Thus, thecap 29 is held vertically in thecase 1. Contrary to the above structure, thecase 1 may have a recess formed at the bottom 11, while thecap 29 may have a protrusion formed at its bottom to be fitted into the recess. Thecap 29 is fixed to thecase 1 by an adhesive for reliable attachment to thecase 1. For this fixation, the adhesive may be replaced with ultrasonic welding or heat welding, for example. This may also apply to attachment of other parts of the lancing unit. Theneedle 21 of thelancet 2 is sterilized by e.g. gamma irradiation before being arranged in thecase 1. Preferably, thecase 1 is provided with a drying agent (not shown) for quality protection of a sensor S which will be described later. According to the present invention, thecap 29 and thebody 20 may be integrally formed with thecase 1, in place of being formed separately. - The
sensor holder 3 holds a sensor S used for blood analysis. Thesensor holder 3 is made of synthetic resin, and as shown inFIG. 4 , includes aside wall 31 which is arcuate in section and ahorizontal wall 32 which is integrally formed with theside wall 31. Thehorizontal wall 32 includes an inclined underside to which the sensor S is attached. - The sensor S is in the form of a chip and may have a structure shown in
FIGS. 5A-5B . Specifically the sensor S includes abase plate 390 having an upper surface provided with areagent 39 a and a pair ofelectrodes 39 b, where the reagent contains an enzyme reactive to the glucose in blood in a certain way (e.g. oxidation), and the electrodes electrically detect the reaction. On thebase plate 390, a capillary 393 is formed by twoseparate spacers 391 and acover 392 which is stacked on thespacers 391. The assembly of thebase plate 390,spacers 391 and cover 392 is formed with arecess 394 as an inlet of blood. When supplied to therecess 394, the blood flows through the capillary 393 by capillary action, to be led to thereagent 39 a. - As shown in
FIG. 4 , thehorizontal wall 32 of thesensor holder 3 is formed with a pair of through-holes 32 a and a pair of supportingwall portions 32 b. The through-holes 32 a permit insertion of a pair ofprobes 62 of a lancing device A, so that theprobes 62 come into contact with theelectrodes 39 b of the sensor S. The supportingportions 32 b can be externally pressed onto thebottom portion 29 b of thecap 29 in a sandwiching manner. Thebottom portion 29 b of thecap 29 may be cylindrical, while the supportingwall portions 32 b are substantially arcuate correspondingly to the outer circumference of the cap's bottom portion. As shown inFIGS. 1 and 2 , since thewall portions 32 b are externally fixed to the bottom portion of thecap 29, thesensor holder 3 is supported by thecase 1 via thecap 29. It should be noted here that thesensor holder 3 is slidable relative to thecap 29 in the longitudinal direction of thecap 29, and further, as described below, the sensor holder can be detached from thecap 29. - As the lancing unit U is sealed by the
film 14, thereagent 39 a of the sensor S is kept free from moisture, thereby preventing quality deterioration in the short term. Further, theneedle 21 of thelancet 2 is covered by thecap 29, and thecap 29 is integrally formed with thebody 20 of thelancet 2. Due to such highly hermetical sealing, thelancet 2 is kept free from contamination even before thelancet 2 is set in thecase 1. - To assemble the lancing unit U, the
lancet 2 integral with thecap 29 is set in thecase 1, and then thesensor holder 3 is attached to thecap 29. Next, thefilm 14 is provided to cover theopening 12 of thecase 1. The setting of thelancet 2 is performed by fixing theprotrusion 15 of thecase 1 into thehole 29 a of thecap 29, the setting of thesensor holder 3 is performed by externally fitting the supportingportions 32 b to thecap 29. In this manner, it is easy to assemble the lancing unit U, whereby the production costs are lowered. -
FIGS. 7 and 8 illustrate an example of a lancing device according to the present invention. As shown inFIG. 7 , the lancing device A of the present embodiment includes ahousing 4, alancet holder 5, alatch 59, and a cam mechanism C. - The
housing 4 includes three sleeves 40 a-40 c which are serially connected to each other, each serving as a front portion, an intermediate portion, and a rear portion, the housing being held by anouter case 70. The tip end (bottom end) of thesleeve 40 a, formed with anopening 41, is brought into contact with human skin. As shown inFIG. 11 , thesleeve 40 a is formed and sized to be slidably fitted with thecase 1 of the lancing unit U. Thesleeve 40 a is externally formed with agroove 42 into which thestopper 13 of thecase 1 is fitted. Thegroove 42 extends lengthwise of thesleeve 40 a to prevent thecase 1 from rotating when thecase 1 is externally fitted to thesleeve 40 a. When thelancet 2 and thesensor holder 3 of the lancing unit U are set to the lancing device A, thecase 1 is brought into sliding engagement with thesleeve 40 a, so that thelancet 2 and thesensor holder 3 are properly arranged at predetermined positions in the lancing device A as described later. - As shown in
FIG. 8 , thesleeve 40 a is provided with a holdingportion 6. The holdingportion 6 serves to hold thesensor holder 3 of the lancing unit U and includes anattachment 60 fixed to thesleeve 40 a. Theattachment 60 is made of synthetic resin and includes aspace 60 a formed by first andsecond walls FIGS. 12 and 13 , thespace 60 a permits the insertion, from its bottom side, of theside wall 31 of thesensor holder 3 of the lancing unit U. A width s1 of thespace 60 a is larger than the thickness t1 of theside wall 31 of thesensor holder 3. With such an arrangement, when theside wall 31 is inserted into thespace 60 a, with thesensor holder 3 set in thecase 1, there is aspace 60 a′ formed between theside wall 31 and thesecond wall 60 c. The holdingportion 6 is provided with aspring 61. When theside wall 31 is inserted into thespace 60 a, thespring 61 exerts urging force F which presses theside wall 31 toward thesecond wall 60 c. Thus, as shown inFIG. 14 , when thesensor holder 3 is released from thecap 29, the urging force F of thespring 61 presses theside wall 31 onto thesecond wall 60 c, whereby thesensor holder 3 is held by the holdingportion 6. For holding thesensor holder 3 more reliably, use may be made of appropriate engaging means which can come into releasable engagement with thesensor holder 3 and the holdingportion 6. - In
FIGS. 7 and 8 , a pair ofprobes 62 is held by thesecond wall 60 c of the holdingportion 6. Theprobes 62, extending in the longitudinal direction of thehousing 4, come into contact with theelectrodes 39 b of the sensor S. Eachprobe 62 includes a retractable tip end 62 a. When thesensor holder 3 is not attached to the lancing device A, each tip end extends downwardly by urging force of a suitable spring (not shown). On the other hand, as shown inFIGS. 12-14 , when thesensor holder 3 is attached to the holdingportion 6, the tip end 62 a is pressed upwardly by the sensor S and retracts. Theouter case 70 is provided with acontrol circuit 79 electrically connected to theprobes 62. Thecontrol circuit 79 includes a CPU and attached memory, for example, for calculating glucose level in blood introduced to thereagent 39 a, based on an electric current measured by theprobes 62. - The
lancet holder 5 for holding and moving thelancet 2 is an example of a holder (for holding a lancing member). Thelancet holder 5 is rotatably inserted in thesleeve 40 b, while also being slidable in the longitudinal direction of the sleeve. The lancingholder 5 includes a bottom portion formed with arecess 50. Therecess 50 permits the insertion of thebody 20 of thelancet 2, so that the lancingholder 5 removably holds thelancet 2. - The
recess 50 is internally formed with a plurality ofgrooves 50 a in which theribs 22 of thebody 20 of thelancet 2 are fitted in. Due to this structure, thebody 20 and thelancet holder 5 are prevented from rotating relatively when thebody 20 is inserted in therecess 50. It should be noted that either of thegrooves 50 a and theribs 22 is partially or wholly formed in spirals. Thus, when thebody 20 of thelancet 2 is inserted in therecess 50, as will be described later, thebody 20 and thelancet holder 5 rotate in a predetermined direction through a relatively small angle. - The cam mechanism C is made up of the
lancet holder 5 and thehousing 4. As shown inFIG. 9 , thelancet holder 5 includes ahead portion 51 which is circumferentially formed with a plurality ofprotrusions 52 at an equal angular spacing. Theprotrusions 52 are inserted into and guided by first grooves andsecond grooves sleeve 40 b of thehousing 4. Thelancet holder 5 is an example of a moving portion of a cam mechanism according to the present invention. - The
first grooves 43A are inclined relative to the longitudinal axis of thesleeve 40 b for rotating thelancet holder 5 when thelancet holder 5 is pushed upward by thelancet 2 of the lancing unit U. On the other hand, thesecond grooves 43B extend in parallel to the axis of thesleeve 40 b for guiding thelancet 2 and thelancet holder 5 linearly toward the tip end of thehousing 4 to pierce human skin by thelancet 2. -
FIGS. 10A-10E show part of the first and thesecond grooves second grooves FIG. 10A , the first and second grooves include ends (bottom ends) 43A′, 43B′ which are arranged circumferentially of thehousing 4 and connected to each other so that the total width s4 is relatively large. On the other hand, the other ends (top ends) 43A″, 43B″ of the first and the second grooves are connected to each other in a manner such that theend 43B″ projects beyond theend 43A″ by an appropriate distance s5. When thelancet holder 5 is moved in the longitudinal direction of thehousing 4, theprotrusions 52 are guided along the first andsecond grooves - As shown in
FIGS. 7 and 8 , thelatch 59 is connected to the top of thelancet holder 5, and slidably inserted in thehousing 4. Abushing 58 is non-rotatably fitted into the bottom of the latch 59A. The top of thelancet holder 5A is formed with a plurality ofclaws 53 to be rotatably inserted in thebushing 58. With such arrangements, thelancet holder 5 is rotatable, whereas thelatch 59 does not rotate together with the lancet holder. The top of eachclaw 53 comes into non-extractable engagement with the top of thebushing 58 for connection of thelancet holder 5 and thelatch 59. - The
latch 59 is formed with a pair ofclaws 59 a at the top. Each of theclaws 59 a comes into engagement with an end of one of thecutouts 44 formed at thesleeve 40 c. As will be described below, the engagement is established when thelancet holder 5 and thelatch 59 are pressed upwardly by thelancet 2 of the lancing unit U. The sleeve 40 is provided, at the top, with a latch-releasingpusher 71 and anoperating cap 72 connected to the pusher. Aspring 73 is provided between thepusher 71 and anintermediate wall 59 b of thelatch 59. Thespring 73 is a compressed coil spring, for example. Theoperating cap 72 is slidable relative to thesleeve 40 c in the longitudinal direction of the sleeve. When thecap 72 is pressed downward against thespring 73, thepusher 71 moves downward to press thelatch claws 59 a. In this way, as shown inFIG. 16 , theclaws 59 a are forcibly disengaged from the ends of thecutouts 44, whereby thelatch 59 and thelancet holder 5 are advanced downward due to the restoring force of thecompressed spring 73. Thehousing 4 is internally provided with areturn spring 74 for moving thelance holder 5 and thelatch 59 back after they have advanced. - A method of setting the
lancet 2 to the lancing device A and the workings of the lancing device A are now described below. - First, as shown in
FIG. 11 , thecase 1 of the lancing unit U is externally fitted to thesleeve 40 a of the lancing device A. Before this step, thefilm 14 is removed from thecase 1 to open theopening 12. When thecase 1 is externally fitted to thesleeve 40 a, thebody 20 of thelancet 2 is fitted into therecess 50 of thelancet holder 5 to be held at thelancet holder 5. Then thecase 1 is pressed upwardly in the direction of an arrow N1, whereby thelancet holder 5 is pressed upwardly by thelancet 2. In this step, thelancet holder 5 and thebody 20 of thelancet 2 rotate in the direction of an arrow N2, until theboundary 28 of thelancet 2 and thecap 20 is twisted to be broken. - More specifically, as shown in
FIG. 10A , theprotrusions 52 of thelancet holder 5 are initially placed within theend 43B′ of thesecond groove 43B. When thelancet 2 is fitted into therecess 50, eachprotrusion 52 is moved to theend 43A′ of thegroove 43A, as indicated by an arrow N3 inFIG. 10B . This movement is caused by the rotation of thelancet holder 5 when thebody 20 is fitted in therecess 50, because of the spiral form of either theribs 22 in thebody 20 of thelancet 2 or thegrooves 50 a in therecess 50 of thelancet holder 5. - While the
lancet holder 5 is being pressed upwardly by thelancet 2, theprotrusions 52 move within thefirst grooves 43A, as shown inFIGS. 10C and 10D . Due to this movement, thelancet holder 5 rotates together with thebody 20 of thelancet 2. On the other hand, thecap 20 of the lancing unit U is fixed to thecase 1 non-rotatably. Thus, theboundary 28 between thebody 20 of thelancet 2 is twisted and then breaks. Different from conventional arts, the user does not need to twist thecap 29, whereby the breaking of theboundary 28 is performed more easily. - As shown in
FIG. 10D , theprotrusion 52 enters thetop end 43B″ upon arriving at thesecond groove 43B. As already described, thetop end 43B″ projects beyond thetop end 43A″ by a predetermined distance, so that theprotrusion 52 guided to the projecting end is prevented from swinging circumferentially in thehousing 4. As a result, thelancet holder 5 can be held stable. - The
first groove 43A of the cam mechanism C has an inclined angle θ (seeFIG. 10D ) which may be enlarged to reduce the force necessary to press thelancet 2 for rotating thelancet holder 5. In this state, however, thelancet 2 needs to be pressed for a longer distance until thelancet holder 5 is rotated through the desired angle. Thus, in designing the cam mechanism C, preferably the inclined angle θ is determined so that thelancet holder 5 can be rotated through an appropriate angle to twist thecap 29 off thebody 20 of thelancet 2 without compromising the rotational operability of thelancet holder 5. - According to the present embodiment, the
case 1 is non-rotatable relative to thehousing 4 when thecase 1 as a whole is externally fitted to thehousing 4. However, the present invention is not limited to this. In the present invention, for example, thestopper 13 of thecase 1 may pass through thegroove 42 of thehousing 4 after theprotrusion 52 arrives at the portion shown inFIG. 10D , so that thecase 1 can rotate relative to thehousing 4. In this way, even if theboundary 28 between thebody 20 of thelancet 2 and thecap 29 is not completely broken by rotation of thelancet holder 5, the user can rotate thecase 1 to break theboundary 28. - When the
case 1 is pressed upward for an appropriate distance, as shown inFIG. 12 , thelatch 59 is moved upward and eachclaw 59 a is brought into engagement with the end of thecutout 44, whereby thelatch 59 is latched. When thecase 1 is pressed upward, as shown inFIG. 13 , theside wall 31 of thesensor holder 3 is inserted into thespace 60 a of the holdingportion 6, to receive urging force F of thespring 61. Thesensor holder 3 maintains its position against the urging force F while being held by thecap 29, whereby thespace 60 a′ is maintained between thesecond wall 60 c and theside wall 31. The tip ends 62 a of theprobes 62 are pressed upward by the sensor S and come into contact with theelectrodes 39 b of the sensor S, while resisting the pressing force. Thus, theprobes 62 and theelectrodes 39 b are held in reliable connection. - After completing the pressing-up step of the
case 1, as shown inFIG. 14 , thecase 1 is removed downward from thesleeve 40 a. As already described, theboundary 28 between thebody 20 of thelancet 2 and thecap 29 has been broken by the twisting, whereby thelancet 2 and thecap 29 are properly divided. Due to this division, thelancet 2 is held by thelancet holder 5 with theneedle 21 exposed. On the other hand, thecap 29 remains fixed to thecase 1. Thesensor holder 3 is detached from thecap 29 to be held by the holdingportion 6. - In this way, the lancing device A enables to attach the
lancet 2 to thelancet holder 5, to rotate thelancet holder 5, to twist a determined portion of thelancet 2 to be broken by the rotation of the lancet holder, and to remove thecap 29 from thebody 20 by simple sliding operation of externally fitting and removing thecase 1 to thesleeve 40 a. As a result, comparing to conventional arts, setting of thelancet 2 is conveniently facilitated. As a user needs not to touch thelancet 2 during setting process of thelancet 2, there is no risk that theneedle 21 accidentally pierces the user's finger. - The cam mechanism C is used for rotating the
lancet holder 5, where the rotation of thelancet holder 5 is effectuated utilizing the pushing motion of thelancet holder 5. In this manner, no separate driving source such as a motor is needed, thereby reducing overall costs. Further, the cam mechanism C is constructed by using thehousing 4 and thelancet holder 5, whereby the number of required parts is advantageously small and the increase in size can be prevented. - Additionally, in the lancing device A, the setting of the
lancet 2 is performed simultaneously with the latching of thelatch 59 and the setting of thesensor holder 3 to the holdingportion 6. This is more convenient for the user. After detached from thebody 20, thecap 29 remains fixed to thecase 1. Thus, the disposal thereof is easy. - After the
case 1 is removed from thesleeve 40 a and thesensor holder 3 is divided from thecap 29, theside wall 31 of thesensor holder 3 is pressed against thesecond wall 60 c by the urging force F of thespring 61. In such an instance, thesensor holder 3 is moved toward the center of thesleeve 40 a (in direction of an arrow N4 inFIG. 14 ) by the size of thespace 60 a′ shown inFIG. 13 . Such movement of thesensor holder 3 makes the sensor S closer to the lancing portion of thelancet 2. When the sensor S is close to the lancing portion, blood from the skin reliably sticks to the sensor S on piercing the skin, as described below. - After the attaching process of the
lancet 2 and thesensor 3 to the lancing device A, the tip end of thesleeve 40 a of the lancing device A is pressed againsthuman skin 99 to be lanced, as shown inFIG. 15 . In this state, theoperating cap 72 is pressed to advance thepusher 71. Then, as shown inFIG. 16 , eachclaw 59 a is disengaged from the end of thecutout 44, and then thelatch 59 and thelancet holder 5 are moved downward by the urging force of thespring 73, whereby theneedle 21 of thelancet 2 pierces theskin 99. In this step, theneedle 21 can be prevented from piercing theskin 99 too deeply, by causing thebody 20 of thelancet 2 partly to abut on thehorizontal wall 32 of thesensor holder 3. When thelancet holder 5 is moved downward, as shown inFIG. 10E , theprotrusion 52 moves within thesecond groove 43B, so that thelancet holder 5 advances linearly. Further, after the linear advancing, theprotrusion 52 returns to the initial position shown inFIG. 10A , to be ready to repeat the operation. - Immediately after the
needle 21 pierces theskin 99, thelatch 59 and thelancet holder 5 are properly retracted to remove theneedle 21 from theskin 99 by the urging force of thereturn spring 74. Preferably, the lancing device A comprises a pump or a pump mechanism for exerting negative pressure within thesleeve 40 a on piercing. Due to this structure, bleeding from theskin 99 is promoted by the negative pressure so that theskin 99 is less pierced by theneedle 21 of thelancet 2, and less damaged. - Blood from the
skin 99 sticks to the sensor S to be introduced to thereagent 39 a of the sensor S. Thereafter, thecontrol circuit 79 calculates glucose level in the blood. The lancing device A may include a display (not shown) such as a liquid crystal display to indicate the calculated value. On the other hand, the usedlancet 2 and thesensor holder 3 are removed from the lancing device A to be disposed. Such removing process utilizes a tool for inserting in thesleeve 40 a to engage and hold thelancet 2 and thesensor holder 3. In this sanitary way, a user needs not to directly touch the usedlancet 2 and thesensor holder 3. - The present invention is not limited to the above embodiment. Specific structure of the lancing device and the members of the cam mechanism according to the present invention may be modified in various ways. Similarly, details of each step in the method of setting the lancing member in the lancing device according to the present invention may be also modified in various ways.
- The lancing member may be rotated by various means in place of the cam mechanism.
FIG. 17 illustrates another example of a lancing device according to the present invention. The illustrated lancing device includes a housing having asleeve 49 for reciprocally holding alancet holder 5A, and a gear G1 externally fixed to the circumference of thesleeve 49. The gear G1 is engaged with a gear G2 fixed to a drive shaft of a motor M. Thelancet holder 5A is externally formed with a pair ofprotrusions 57. Theprotrusions 57 are engaged with a pair ofslots 49 a formed at thesleeve 49. In the lancing device, the motor M is driven to rotate the gear G2, then the gear G1 rotates together with thesleeve 49, thereby rotating thelancet 5A. Thus, with thelancet 2 held by thelancet holder 5, it is possible to twist off theboundary 28 between thebody 20 and thecap 29 by causing the motor M to rotate thelancet 2. - As described above, according to the present invention, the lancing device may be provided with a motor for rotating a holder and a lancing member. The motor may be operated by a user using a predetermined switch, for example. However, for improving user's convenience, preferably, the motor may be automatically switched on to be driven when the lancing member is attached to the holder of the lancing device, so that the user needs not to operate a switch.
- According to the present invention, a lancing member and a holder may be rotated during attaching process of the lancing member to the holder, instead of being rotated after the lancing member is held by the holder. For instance, in attaching the lancing member to the holder, the holder may be rotated before the attachment has been completed, and the lancing member and the holder are rotated together.
- According to the present invention, the lancing member is not necessarily formed integral with the cap. Instead, the lancing member may be formed separate from the cap, and the cap may be attached to the lancing member by an adhesive. In the cam mechanism, it is not necessarily required that the movable member is formed with protrusions and the housing formed with guiding grooves. On the contrary, the movable member may be formed with grooves, and the housing may be formed with protrusions.
- The holder of a lancing device is not limited to the one in which the lancing member is held by fitting insertion. For instance, the lancing member may be held by a clamping mechanism.
- The mechanism for advancing the holder may various in design other than the one utilizing the restoring force of a spring.
- A lancing device according to the present invention is not limited to be used for measuring the glucose level in blood. Further, a lancing device according to the present invention may be used without attaching an analyzer such as a sensor holder.
Claims (5)
1. A method of supplying a lancet and a sensor from an interior of a first housing into an interior of a second housing, the method comprising:
temporarily attaching the first housing to the second housing for causing the lancet and the sensor together to be supported respectively on a lancet holding portion and a sensor holding portion in the interior of the second housing; and
removing the first housing from the second housing while keeping the lancet and the sensor supported on the respective holding portions in the interior of the second housing.
2. The method according to claim 1 , wherein the lancet includes a body and a needle projecting from the body, the body being formed integral with a cap covering the needle and fixed to the first housing, and
wherein the method further comprising breaking a boundary between the cap and the body of the lancet while the first housing is held attached to the second housing, by rotating the body of the lancet relative to the cap utilizing a rotating mechanism prearranged in the second housing.
3. The method according to claim 2 , wherein the lancing holding portion is reciprocally movable in the second housing, and
wherein the rotating mechanism comprises a cam mechanism for rotating the lancet holding portion and the body of the lancet relative to the cap utilizing a pressing force exerted when the lancet holding portion is pressed into the second housing by the lancet.
4. The method according to claim 1 , wherein the first housing is slidably fitted to an end of the second housing for temporary attachment, the lancet being pressed against the lancet holding portion to be pushed into the second housing.
5. The method according to claim 2 , wherein the rotating mechanism comprises a motor for rotating the lancet holding portion and the body of the lancet relative to the cap.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/018,010 US20110130781A1 (en) | 2002-07-02 | 2011-01-31 | Method of setting lancing member to lancing device, lancing device, and cam mechanism |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-193846 | 2002-07-02 | ||
JP2002193846A JP4250695B2 (en) | 2002-07-02 | 2002-07-02 | Method for setting puncture member to puncture device, and puncture device |
US10/519,881 US7879057B2 (en) | 2002-07-02 | 2003-07-01 | Method of setting lancing member to lancing device, lancing device and cam mechanism |
PCT/JP2003/008384 WO2004004566A1 (en) | 2002-07-02 | 2003-07-01 | Method of setting piercing member in piercing device, piercing device, and cam mechanism |
US13/018,010 US20110130781A1 (en) | 2002-07-02 | 2011-01-31 | Method of setting lancing member to lancing device, lancing device, and cam mechanism |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/008384 Division WO2004004566A1 (en) | 2002-07-02 | 2003-07-01 | Method of setting piercing member in piercing device, piercing device, and cam mechanism |
US10/519,881 Division US7879057B2 (en) | 2002-07-02 | 2003-07-01 | Method of setting lancing member to lancing device, lancing device and cam mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110130781A1 true US20110130781A1 (en) | 2011-06-02 |
Family
ID=30112291
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/519,881 Expired - Fee Related US7879057B2 (en) | 2002-07-02 | 2003-07-01 | Method of setting lancing member to lancing device, lancing device and cam mechanism |
US13/018,010 Abandoned US20110130781A1 (en) | 2002-07-02 | 2011-01-31 | Method of setting lancing member to lancing device, lancing device, and cam mechanism |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/519,881 Expired - Fee Related US7879057B2 (en) | 2002-07-02 | 2003-07-01 | Method of setting lancing member to lancing device, lancing device and cam mechanism |
Country Status (6)
Country | Link |
---|---|
US (2) | US7879057B2 (en) |
EP (1) | EP1552788A4 (en) |
JP (1) | JP4250695B2 (en) |
CN (1) | CN100366221C (en) |
AU (1) | AU2003246224A1 (en) |
WO (1) | WO2004004566A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014083783A1 (en) * | 2012-11-30 | 2014-06-05 | パナソニックヘルスケア株式会社 | Puncture instrument, puncture needle cartridge mounted in puncture instrument, and method for using puncture instrument and puncture needle cartridge |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7211052B2 (en) * | 2002-12-30 | 2007-05-01 | Roche Diagnostics Operations, Inc. | Flexible test strip lancet device |
US7214200B2 (en) | 2002-12-30 | 2007-05-08 | Roche Diagnostics Operations, Inc. | Integrated analytical test element |
US7299081B2 (en) * | 2004-06-15 | 2007-11-20 | Abbott Laboratories | Analyte test device |
EP1961382A4 (en) * | 2006-01-05 | 2010-01-20 | Panasonic Corp | Blood test apparatus |
GB2434540A (en) * | 2006-01-27 | 2007-08-01 | Owen Mumford Ltd | Lancet |
PL212772B1 (en) * | 2006-03-29 | 2012-11-30 | Htl Strefa Spolka Z Ograniczona Odpowiedzialnoscia | Lancet |
JP5028414B2 (en) * | 2006-05-10 | 2012-09-19 | パナソニック株式会社 | Puncture device and puncture needle cartridge |
GB2440119A (en) * | 2006-07-18 | 2008-01-23 | Owen Mumford Ltd | Skin Pricking Device |
US7545502B2 (en) | 2006-09-27 | 2009-06-09 | Weyerhaeuser Nr Company | Methods for detecting compression wood in lumber |
US20080243161A1 (en) * | 2007-03-30 | 2008-10-02 | Ramzi Abulhaj | Disposable lancet with re-cocking prevention means |
AR070764A1 (en) * | 2007-12-07 | 2010-05-05 | Pyng Medical Corp | APPLIANCES AND METHODS TO ENTER OSEOS PORTALS |
US8057501B2 (en) | 2008-08-25 | 2011-11-15 | Abbott Diabetes Care Inc. | Collapsible lancing device |
CN201379576Y (en) * | 2009-04-17 | 2010-01-13 | 张立波 | Disposable blood lancet |
JP6193097B2 (en) * | 2013-11-08 | 2017-09-06 | パナソニックヘルスケアホールディングス株式会社 | Puncture needle cartridge, puncture device for mounting the puncture needle cartridge, and method for mounting the puncture needle cartridge to the puncture device |
CN106580340B (en) * | 2016-12-15 | 2023-06-13 | 任克伟 | Rotating wheel type blood sampling device |
CN110338887A (en) * | 2019-06-24 | 2019-10-18 | 杜春娟 | Firm pocket thoracentesis pipe and its puncture application method |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4580564A (en) * | 1983-06-07 | 1986-04-08 | Andersen Michael A | Finger pricking device |
US5314442A (en) * | 1992-10-26 | 1994-05-24 | Apls Co., Ltd. | Blood collecting apparatus |
US5385571A (en) * | 1992-08-28 | 1995-01-31 | Apls Co., Ltd. | Lancet |
US5454828A (en) * | 1994-03-16 | 1995-10-03 | Schraga; Steven | Lancet unit with safety sleeve |
US5569286A (en) * | 1995-03-29 | 1996-10-29 | Becton Dickinson And Company | Lancet assembly |
US5797942A (en) * | 1996-09-23 | 1998-08-25 | Schraga; Steven | Re-usable end cap for re-usable lancet devices for removing and disposing of a contaminated lancet |
US6315738B1 (en) * | 1999-01-04 | 2001-11-13 | Terumo Kabushiki Kaisha | Assembly having lancet and means for collecting and detecting body fluid |
US6352514B1 (en) * | 1996-05-17 | 2002-03-05 | Amira Medical | Methods and apparatus for sampling and analyzing body fluid |
US7238192B2 (en) * | 2002-05-16 | 2007-07-03 | Roche Diagnostics Operations, Inc. | Blood withdrawal system |
US7250056B2 (en) * | 2001-06-11 | 2007-07-31 | Arkray, Inc. | Lancet-integrated mounter and method of making the same |
US7691071B2 (en) * | 2001-01-19 | 2010-04-06 | Panasonic Corporation | Lancet-integrated sensor, measurer for lancet-integrated sensor, and cartridge |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4311484A (en) * | 1980-04-09 | 1982-01-19 | Cortex Research Corporation | Specimen sampling apparatus |
JPH0484501U (en) | 1990-11-29 | 1992-07-22 | ||
GB9207120D0 (en) * | 1992-04-01 | 1992-05-13 | Owen Mumford Ltd | Improvements relating to blood sampling devices |
JPH05285127A (en) | 1992-04-15 | 1993-11-02 | Apurusu Kk | Lancet |
JP3144073B2 (en) | 1992-07-27 | 2001-03-07 | 松下電器産業株式会社 | Electric vacuum cleaner |
JPH0638909U (en) * | 1992-10-27 | 1994-05-24 | 株式会社メイテック | Blood collection needle that is easy to put on and take off |
BR9401921A (en) * | 1993-07-08 | 1995-03-07 | Mark Ind Inc | Lipstick and similar retainer |
CN2233726Y (en) * | 1993-10-14 | 1996-08-28 | 方一之 | Remote intervertebral pressure reducing therapeutic apparatus |
JPH0884721A (en) | 1994-09-16 | 1996-04-02 | Meitec Corp | Blood sampler |
CN2243268Y (en) * | 1995-10-31 | 1996-12-25 | 焦锋 | Inner rotating puncture needle for living tissue of two layers |
US5989917A (en) * | 1996-02-13 | 1999-11-23 | Selfcare, Inc. | Glucose monitor and test strip containers for use in same |
JP3895778B2 (en) * | 1996-05-17 | 2007-03-22 | ロシェ ダイアグノスティックス オペレイションズ インコーポレイテッド | Incision device for body fluid sampling |
US5964731A (en) * | 1997-10-02 | 1999-10-12 | Kovelman; Paul H. | Disposable, disabling safety needle for a syringe, pen-type injector, or the like, and method of making the same |
AU748277B2 (en) * | 1998-01-30 | 2002-05-30 | Novo Nordisk A/S | An injection syringe |
CN1156311C (en) * | 1998-08-28 | 2004-07-07 | 秀逸开发株式会社 | Portable automatic injection device and its needle assembly |
JP3659832B2 (en) * | 1999-03-10 | 2005-06-15 | テルモ株式会社 | Body fluid component measuring device |
JP4255556B2 (en) * | 1999-01-29 | 2009-04-15 | アークレイ株式会社 | Lancet integrated measuring device |
US6849052B2 (en) | 1999-12-13 | 2005-02-01 | Arkray, Inc. | Body fluid measuring apparatus with lancet and lancet holder used for the measuring apparatus |
JP4521916B2 (en) * | 2000-02-10 | 2010-08-11 | キヤノン株式会社 | Cam barrel for lens barrel, lens barrel, and camera equipped with the same |
AU5201901A (en) * | 2000-04-26 | 2001-11-07 | Craig Stephen Thorley | Single use syringe |
US7001364B1 (en) * | 2002-08-13 | 2006-02-21 | Parham Farhi | Needle safety cap device |
-
2002
- 2002-07-02 JP JP2002193846A patent/JP4250695B2/en not_active Expired - Fee Related
-
2003
- 2003-07-01 AU AU2003246224A patent/AU2003246224A1/en not_active Abandoned
- 2003-07-01 EP EP03738627A patent/EP1552788A4/en not_active Withdrawn
- 2003-07-01 US US10/519,881 patent/US7879057B2/en not_active Expired - Fee Related
- 2003-07-01 WO PCT/JP2003/008384 patent/WO2004004566A1/en active Application Filing
- 2003-07-01 CN CNB038156938A patent/CN100366221C/en not_active Expired - Fee Related
-
2011
- 2011-01-31 US US13/018,010 patent/US20110130781A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4580564A (en) * | 1983-06-07 | 1986-04-08 | Andersen Michael A | Finger pricking device |
US5385571A (en) * | 1992-08-28 | 1995-01-31 | Apls Co., Ltd. | Lancet |
US5314442A (en) * | 1992-10-26 | 1994-05-24 | Apls Co., Ltd. | Blood collecting apparatus |
US5454828A (en) * | 1994-03-16 | 1995-10-03 | Schraga; Steven | Lancet unit with safety sleeve |
US5569286A (en) * | 1995-03-29 | 1996-10-29 | Becton Dickinson And Company | Lancet assembly |
US6352514B1 (en) * | 1996-05-17 | 2002-03-05 | Amira Medical | Methods and apparatus for sampling and analyzing body fluid |
US5797942A (en) * | 1996-09-23 | 1998-08-25 | Schraga; Steven | Re-usable end cap for re-usable lancet devices for removing and disposing of a contaminated lancet |
US6315738B1 (en) * | 1999-01-04 | 2001-11-13 | Terumo Kabushiki Kaisha | Assembly having lancet and means for collecting and detecting body fluid |
US7691071B2 (en) * | 2001-01-19 | 2010-04-06 | Panasonic Corporation | Lancet-integrated sensor, measurer for lancet-integrated sensor, and cartridge |
US7250056B2 (en) * | 2001-06-11 | 2007-07-31 | Arkray, Inc. | Lancet-integrated mounter and method of making the same |
US7238192B2 (en) * | 2002-05-16 | 2007-07-03 | Roche Diagnostics Operations, Inc. | Blood withdrawal system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014083783A1 (en) * | 2012-11-30 | 2014-06-05 | パナソニックヘルスケア株式会社 | Puncture instrument, puncture needle cartridge mounted in puncture instrument, and method for using puncture instrument and puncture needle cartridge |
US10010281B2 (en) | 2012-11-30 | 2018-07-03 | Phc Holdings Corporation | Puncture instrument, puncture needle cartridge mounted in puncture instrument, and method for using puncture instrument and puncture needle cartridge |
US11147484B2 (en) | 2012-11-30 | 2021-10-19 | Phc Holdings Corporation | Puncture instrument, puncture needle cartridge mounted in puncture instrument, and method for using puncture instrument and puncture needle cartridge |
Also Published As
Publication number | Publication date |
---|---|
EP1552788A4 (en) | 2008-02-06 |
CN1665446A (en) | 2005-09-07 |
EP1552788A1 (en) | 2005-07-13 |
US20050261716A1 (en) | 2005-11-24 |
AU2003246224A1 (en) | 2004-01-23 |
US7879057B2 (en) | 2011-02-01 |
JP2004033440A (en) | 2004-02-05 |
WO2004004566A1 (en) | 2004-01-15 |
JP4250695B2 (en) | 2009-04-08 |
CN100366221C (en) | 2008-02-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20110130781A1 (en) | Method of setting lancing member to lancing device, lancing device, and cam mechanism | |
US7470238B2 (en) | Unit for piercing, and piercing device | |
EP1541088B1 (en) | Piercing unit, piercing member removal device, and piercing device | |
CA2477089C (en) | Blood sampling device | |
US7922971B2 (en) | Integrated meter for analyzing biological samples | |
KR100893275B1 (en) | Integrated sample testing meter | |
US20090326355A1 (en) | Integrated Test System for Monitoring Bodily Fluids | |
WO2005039413A1 (en) | Lancet and centesis instrument | |
EP1659961A2 (en) | Blood sampling device | |
JP4308483B2 (en) | Puncture unit and puncture device | |
JP4182397B2 (en) | Puncture unit and puncture device | |
JP4250694B2 (en) | Puncture device | |
EP2782502B1 (en) | Apparatus for eliciting a blood sample | |
JP4621872B2 (en) | Cam mechanism | |
JP4621842B2 (en) | Puncture device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |