CN103533891A - Piercing aid having at least one lancet for obtaining bodily fluids - Google Patents
Piercing aid having at least one lancet for obtaining bodily fluids Download PDFInfo
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- CN103533891A CN103533891A CN201280017084.9A CN201280017084A CN103533891A CN 103533891 A CN103533891 A CN 103533891A CN 201280017084 A CN201280017084 A CN 201280017084A CN 103533891 A CN103533891 A CN 103533891A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150526—Curved or bent needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
- A61B5/1513—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising linear sliding guides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15146—Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means.
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15146—Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means.
- A61B5/15148—Constructional features of stocking means, e.g. strip, roll, disc, cartridge, belt or tube
- A61B5/15149—Arrangement of piercing elements relative to each other
- A61B5/15151—Each piercing element being stocked in a separate isolated compartment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15146—Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means.
- A61B5/15148—Constructional features of stocking means, e.g. strip, roll, disc, cartridge, belt or tube
- A61B5/15157—Geometry of stocking means or arrangement of piercing elements therein
- A61B5/15159—Piercing elements stocked in or on a disc
- A61B5/15163—Characterized by propelling the piercing element in an axial direction relative to the disc
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—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
- A61B5/150435—Specific design of proximal end
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The application relates to a piercing aid having at least one lancet (10) for obtaining bodily fluids, wherein the piercing aid comprises a drive unit (2) displacing the lancet from a rest position into a piercing position in the piercing direction (15, 15a) for performing a piercing process, and a retracting unit (9, 22) displacing the lancet from the piercing position into the rest position thereof after performing the piercing process.
Description
Technical field
The present invention relates to a kind of puncture auxiliary facilities (piercing aid) having for obtaining at least one blood taking needle of body fluid.According to the preamble of claim 1, described puncture auxiliary facilities comprises driver element and recalls unit (retraction unit); Described driver element moves to puncture position along puncture direction from resting position by described blood taking needle, to carry out piercing process; The described unit of recalling, after carrying out described piercing process, moves back to resting position by described blood taking needle from puncture position.
Background technology
This puncture auxiliary facilities is preferably used for analysing body fluid sample, especially blood sample.In clinical diagnosis, this analysis enables to detect easily and reliably pathological condition, and selectivity and on good grounds the health of monitoring.In this case, medical Blood diagnosis supposes that blood sample is to obtain from individuality to be analyzed conventionally.
Meanwhile, at clinic and registered doctor place, people's to be analyzed several milliliters of blood obtain by venipuncture conventionally, can carry out some laboratory tests.Nowadays, several microlitres or blood even are still less for selectively conventionally enough for the single analysis of a parameter.
, in order to obtain blood from skin, for example, people's to be analyzed finger tip or ear-lobe are punctured by aseptic sharp-pointed blood taking needle enough for this reason, thereby obtain several microliters of blood for analyzing or or even the blood flow volume received in the scope of liter.When these methods are mainly applicable to after acquisition blood immediately analyzing blood sample.
It is special when non-healthcare givers self simply analyzes blood, and when needing in one day the regular blood that repeatedly obtains from diabetics with the blood sugar concentration of monitoring of blood, blood taking needle and blood collection device, blood blood lancet device or the puncture auxiliary facilities adapting provide thus, thereby make to obtain blood in mode painless and capable of circulation as far as possible.This blood taking needle and puncture auxiliary facilities are for example open in EP05650970.
In the system that can buy on market at present, blood taking needle is prepared to use in puncture auxiliary facilities with loose mail form (loose form), or adopt known disposable use puncture auxiliary facilities, this puncture auxiliary facilities comprises single blood taking needle, and is throwing away or at least cleaning totally subsequently.In order to prepare blood taking needle with loose mail form, before each piercing process, user takes out from encapsulation blood taking needle containing the bag of a plurality of blood taking needles.Then, protective jacket must manually be removed from blood taking needle.Then, puncture auxiliary facilities is ready for receiving blood taking needle, and the blood taking needle support member of puncture auxiliary facilities comes out.The blood taking needle taking out from bag is manually inserted and secured in the blood taking needle support member of puncture auxiliary facilities.Subsequently, puncture auxiliary facilities need to seal it again with lid.Lid has guaranteed that blood taking needle can not obtain from external contact again.It generally has an opening, and in actual piercing process, blood sampling needle point can exit this opening.Finally, the auxiliary facilities that will puncture clamps, and can be used in the piercing process that obtains blood.
In traditional blood taking needle system, user thinks that a large amount of manual operation steps is inconvenient, and particularly in hypoglycemia situation, perception is subject to more to exist problematic in limited time.In addition, once blood taking needle inserts, do not have thing can stop user to reuse this blood taking needle in puncture with in obtaining blood, this causes the problem of health aspect to be ignored.
Especially when a plurality of blood taking needles are set to blood sampling box for needle or pin (lancet magazine) inside, blood taking needle has blood sampling needle body, described blood sampling needle body is adapted to (adapt to) blood taking needle support member, and described blood sampling needle body produces and is rigidly connected between actual blood taking needle and support member, special in to guarantee by recalling moving backward of unit.This means, traditional blood taking needle comprises and the actual rigidly connected parts of blood sampling needle body, by such mode, for example, recalls unit and can be bonded in these parts, and blood taking needle can be retracted again.Such blood taking needle example is to comprise the blood taking needle of the plastic material drip molding of the piston-like that is arranged on end.Therefore, the common quantity of this blood taking needle is a lot, and they are stored in blood sampling box for needle or pin and conventionally can cause the size of blood taking needle entire system larger.In addition very difficult cleaning of this blood taking needle that comprises, working of plastics.
US5,578,014 disclose a kind of blood taking needle system, and wherein, the driving that blood taking needle moves forward is distinguished independent operation with mobile backward driving.Be advanced through Spring driving piston (plunger) and carry out, this Spring driving piston is a part for puncture auxiliary facilities, and from behind, from the side action away from needle point in blood taking needle.And move through backward the spring being contained in blood taking needle, drive.Similarly system is at US5,029,583 and DE-A19855465 in have description.In this case, there is such defect: each blood taking needle must be equipped with the spring of oneself, wherein must in independent manufacturing step, produce with rigidly connected at least one working of plastics of blood taking needle.This makes production complexity and the production cost of these blood taking needles high.In addition, if a plurality of blood taking needle be present in blood sampling box for needle or pin in, and if only have single blood taking needle to be present in independent puncture auxiliary facilities, by the unique of whole system miniaturization, may be very difficult.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of puncture auxiliary facilities, comprise that it is favourable aborning, and simple in structure for obtaining at least one blood taking needle of body fluid.
Feature by claim 1 realizes this object.
Purport of the present invention is, provides a kind of and has for obtaining the puncture auxiliary facilities of at least one blood taking needle of body fluid, specifically comprises with lower member:
Driver element, described driver element moves to puncture position to carry out piercing process by described blood taking needle from resting position along puncture direction; And
Recall unit (9), described in recall unit after described piercing process is carried out, described blood taking needle is moved to its resting position from puncture position; Described blood taking needle is only preferably and is comprised of pin, and described pin comprises linearly extended first; Wherein said first is preferably shaft-like, and made by metal and/or pottery, Plastic or other materials, and does not have parts to be rigidly connected with it.
Because blood taking needle is simple in structure, and do not need to arrange other plastic components and actual blood sampling needle body is rigidly connected, thereby comprise that this puncture auxiliary facilities of blood taking needle is not only preferably simple in structure, production cost is low; And owing to being arranged in blood sampling box for needle or pin when a plurality of blood taking needles, blood taking needle moves forward and backward the negligible amounts of required parts, thus also make blood taking needle in puncture the possibility that becomes simple to operate in auxiliary facilities.
Especially, this puncture auxiliary facilities makes accurately or accurately to lead and become possibility obtain the pin of parts as blood in puncture direction, thereby reduces patient's puncture pain.This is that wherein this plastic body is mentioned subsequently as blood taking needle memory element because can pin be led at the front end of available plastic body; In this way, because pin guiding is in the groove of plastic body, thereby in piercing process, pin can not be in the swaying of puncture direction.Therefore,, when penetrating patient's skin, by pin, can produce accurately and the wound of reserving.Puncture pain can reduce thus.
Preferably, described pin comprises first end and the second end; Wherein said first end has puncture tip, and described the second end has linearly extended second portion; Described first and described second portion form angle mutually.In this example, described angle can be selected from the scope of 10 °-180 °, is preferably 90 °.
Pin always has this setting of two straight-line extension parts can be passed through an end of pin, and the end contrary with tip position, carries out bending by for example angle of 90 ° and realize; And the second portion of pin, sweep can be bonded in the groove of recalling unit.Described groove can be for recalling the groove on the end face of unit described in being arranged on, or be for example opened in the hole of recalling in unit, and intention is retracted pin after piercing process occurs.
The crooked end of described pin contacts from rear portion by described driver element, and moves in puncture direction, that is, move forward, thereby exit puncture auxiliary facilities.For this reason, according to one preferred embodiment of the present invention, described driver element comprises at least one piston-like element, in described piercing process, the pistons end of described piston-like element contacts with the end of described selected blood taking needle, and the pistons end of described piston-like element along described puncture direction the end at the inner mobile described selected blood taking needle of described blood taking needle memory element.Described piston-like element not only can contact from rear portion single blood taking needle, and by the motion of described piston-like element, selectively by with rigidly connected another parts of piston-like element, will described in recall unit and move with respect to described blood taking needle memory element.General preferably in the forward and backward directions of puncture auxiliary facilities, move, thereby make pin recall and become possibility recalling on the return trajectory of unit.
Be provided with angle this pin or or even a plurality of this pin that is provided with a plurality of angles by rotation, make further the possibility that becomes simple to operate of pin.For example, in set-up procedure, each pin rotates for piercing process, with previously completed rotatablely move after in forward direction, obtain necessary translational motion.This for example comprises that in puncture auxiliary facilities the second portion of single pin and pin is bonded in cylindrical parts, with after cylindrical parts is with respect to the rotation of blood taking needle supporter, when the direction of blood taking needle supporter and puncture direction move together along with cylindrical parts, can realize.In end, blood taking needle supporter comprises groove, and the cushion block of described cylindrical parts is arranged in described groove after rotation.In this way, due to rotatablely moving of cylindrical parts, cause cushion block to be inserted in groove, the translational motion forward that causes cylindrical parts simultaneously and cause thus pin; Wherein said pin is in described cylindrical parts, be formed with angle at the second portion of end and described pin.
Described cylindrical parts preferably includes the female thread being arranged in end recesses, and described screw thread is formed on end, with to be preferably cylindrical outstanding external screw thread complementary mutually; Wherein said cylindrical outstanding being bonded in described groove, and be connected with another parts of puncture auxiliary facilities.Thus, in the time of in blood taking needle member is stored in actual puncture auxiliary facilities, due to interactional screw thread, can realize rotation; Wherein said blood taking needle member comprises actual blood taking needle and cylindrical parts and blood taking needle supporter.Described rotation is undertaken by cylindrical parts, this means, cylindrical parts is carried out the disclosed rotation with respect to blood taking needle supporter above, and the mode of top that is arranged on the groove of blood taking needle supporter by, the cushion block of cylindrical parts realizes.If triggered piercing process by puncture auxiliary facilities by drive member now, before there is translational motion to occupy puncture position in disclosed pin and cylindrical parts above blood taking needle supporter.In this way, pin leaves blood taking needle supporter from front portion.In this example, blood taking needle supporter is as the guiding of pin, to carry out accurate translational motion.The second portion of pin keeps being connected with cylindrical parts in whole piercing process.
According to preferred embodiment, having preferred general is columniform blood taking needle memory element, described blood taking needle memory element comprises a plurality of blood taking needles, and described blood taking needle memory element is recalled unit described in surrounding, and described in to recall unit removable in described blood taking needle memory element; Wherein said blood taking needle memory element is substantially cylindrical housings, and described blood taking needle in described blood taking needle memory element in parallel to each other scattering device on circuit orbit; The described unit of recalling is cylindrical substantially, at least partly.In this example, described groove is the groove extending along radiation direction, and described groove is arranged at least partly on the columniform end face of recalling unit.In this manner, described in recall at least partly sealing or besieged of unit, this recalls unit described in having guaranteed, and can be arranged on compactly the cylindrical housings of described blood taking needle memory element inner, and removable.
As substituting of the blood taking needle memory element of cylindrical housings, the shape of blood taking needle memory element can be also for example polygon, as hexagon, octagon or other similar shapes.Similarly, except the above-mentioned cross section with respect to the blood taking needle memory element longitudinal axis, square, rectangle or linear cross section are also possible, are for example only provided with two blood taking needles in this cross section.
As mentioned above, the first of blood taking needle is not that each is equipped with rigidly connected cabinet, but only comprises crooked end, as second portion; Each blood taking needle is bonded in the groove on the end face of recalling unit thus.In this way, in revocation procedure, the groove of recalling the described end face of unit and being arranged on described end face can be for again retracting blood taking needle from human body, that is to say, at single blood taking needle backward in moving process, by retracting, recall unit, in quick and simple mode, blood taking needle is retracted.Selectively, if in certain embodiment, puncture auxiliary facilities comprises single blood taking needle, and blood taking needle can be rigidly connected with cylindrical parts.
There is folder shape connector, described folder shape connector by the driver element of described piston-like element with described in recall unit and be rigidly connected in being seen puncture direction.This is mainly used in taking a blood sample on box for needle or pin, and the box for needle or pin of wherein taking a blood sample comprises blood taking needle memory element and the driver element of cylindrical housings.Described folder shape connector is applicable to described piston-like elements relative in the described unit of recalling around the longitudinal axis torsion of extending along puncture direction of described blood sampling box for needle or pin.In this way, described folder shape connector for will described in recall unit and described driver element, piston-like element particularly, is rigidly connected along moving direction or minute other direction that punctures forward and backward.In piercing process, described piston-like elements relative in the described torsion of recalling unit for selecting next blood taking needle, for contacting subsequently of piston-like element and blood taking needle end.
This folder shape connector is preferably arranged on the cylindrical portion of piston-like element and recalls between the inside of unit, and described cylindrical portion is recalled inside, unit described in being arranged on.It comprises at least one, is preferably that two or three are outstanding, and this is outstanding departs from by least one plastic arm elasticity, and is bonded in the passage of shaping with complementary mutually with described passage.This passage can be arranged in the cylindrical housings of piston-like element, and gives prominence to be fixed on and recall on unit, and vice versa.
Preferably, if especially used blood sampling box for needle or pin, each blood taking needle is all arranged in the independent continuous conduit of blood taking needle memory element inside; Wherein said blood taking needle memory element be shaped as cylindrical housings; Described continuous conduit, preferably at y direction, that is to say, along the y direction of the cylindrical housings of blood taking needle memory element, extends.Have thus a plurality of continuous conduits, described continuous conduit is arranged on the circuit orbit in the cylindrical housings of blood taking needle memory element; This makes driven and moved single pin or blood taking needle becomes possibility by disk-like element.
Accompanying drawing explanation
Other preferred embodiments can obtain from the following explanation relevant to accompanying drawing.In accompanying drawing:
Fig. 1 is according to the structural representation of the pin (needle) of the puncture auxiliary facilities in one embodiment of the invention;
Fig. 2 is according to the basic structure schematic diagram of the puncture auxiliary facilities of the box for needle or pin of taking a blood sample comprising in one embodiment of the invention;
Fig. 3 is the single parts explosive view according to the puncture auxiliary facilities of the present invention in Fig. 1 and Fig. 2;
Fig. 4 is according to the cutaway view of the blood sampling box for needle or pin of the puncture auxiliary facilities of the present invention in Fig. 2 and Fig. 3 and part driver element;
Fig. 5 is another structural representation when blood taking needle does not extend according to the blood sampling box for needle or pin of the puncture auxiliary facilities in one embodiment of the invention and part driver element;
Fig. 6 has the pin of extension or the another structural representation of blood taking needle according to the blood sampling box for needle or pin for the auxiliary facilities that punctures in one embodiment of the invention and part driver element;
Fig. 7 is the structural representation being tilted to when there is no shell and using blood taking needle according to the blood sampling box for needle or pin for the auxiliary facilities that punctures of the present invention and part driver element;
Fig. 8 is the structural representation under being tilted to according to the part for the auxiliary facilities that punctures of the present invention blood sampling box for needle or pin and part driver element;
Fig. 9 is according to the blood sampling box for needle or pin for the auxiliary facilities that punctures of the present invention and the floor map of looper;
Figure 10 is the cross sectional representation together with part driver element and looper according to the blood sampling box for needle or pin of puncture auxiliary facilities of the present invention;
Figure 11 be according to before piercing process in another embodiment of the present invention for comprising the structural representation of blood taking needle member of the puncture auxiliary facilities of single blood taking needle;
Figure 12 is the structural representation of the blood taking needle member shown in Figure 11 in piercing process according to another embodiment of the present invention; And
Figure 13 is according to the cross sectional representation of another parts of the blood taking needle member of Figure 11 and Figure 12 and puncture auxiliary facilities.
List of reference numerals
2 driver elements
3 blood sampling box for needle or pins
4 spring elements
7 pistons
7a piston-like element
7b cylindrical shell body
7c seat element
7d pistons end
The torsion longitudinal axis of 7e blood sampling box for needle or pin
9 recall unit
10 blood taking needles
The crooked end of 10a blood taking needle unit
The blood taking needle that 10b is selected
10c the second blood taking needle part
10d the first blood taking needle part
10e sweep
10f angle
10g needle point
11 blood taking needle memory element
13 radial orientation notch
Moving forward in 13b groove
14 end faces, end
15 puncture directions
The 15a direction that punctures
16 first folder shape connectors
17 folder shapes are outstanding
18 are shaped gives prominence to
19 continuous conduits
20 blood taking needle members
21 blood taking needle supporters
22 cylindrical parts
23 cushion blocks
24 cushion blocks
The groove of 25 blood taking needle supporters
The groove of 26 blood taking needle supporters
27 rotation arrows
28 female threads
29 external screw threads
30 parts
31 is outstanding
The specific embodiment
Fig. 1 illustrates according to the example of the blood taking needle for the auxiliary facilities that punctures in one embodiment of the invention.As can be seen from the figure, the first end 10a of pin 10 is crooked with respect to other parts of pin.The other end, the bottom 10b of pin comprises needle point 10g.
The first blood taking needle part 10d forms angle 10f with the second blood taking needle part 10c thus.This can be by for example bending to pin this angle or two single-pieces being stitched together to provide with this angle.
Preferably, the angular range of angle 10f is 10 °-180 °, preferably uses 90 °.
In order to save space, it is as much as possible little that sweep 10e keeps, and that is to say, it is as much as possible little that the radius of curvature of sweep 10e keeps.
Fig. 2 is according to the structural representation of the puncture auxiliary facilities in one embodiment of the invention; Wherein, it is possible a plurality of pins being as shown in Figure 1 arranged in this puncture auxiliary facilities.
Puncture auxiliary facilities 1 shown in Fig. 2 is for storing respectively and provide blood taking needle or pin to obtain body fluid.Other cladding elements are not shown in the basic structure of this puncture auxiliary facilities 1.
Puncture auxiliary facilities 1 comprises driver element 2 and blood sampling box for needle or pin 3.Wherein driver element 2 comprises flat spin spring, and this flat spin spring is used to the piston loading spring power moving forward and backward.Helical spring is arranged on cylinder 5 around.
Blood sampling box for needle or pin 3 comprises shell 8, and recalls unit 9.
Fig. 3 is according to the puncture auxiliary facilities in one embodiment of the invention, especially according to the explosive view of the blood sampling box for needle or pin of puncture auxiliary facilities of the present invention.As can be seen from the figure, the shell of cylindrical structural comprises the blood taking needle memory element 11 of recalling unit 9 and being shaped as cylindrical shell.In blood taking needle memory element 11, a plurality of blood taking needles 10 are arranged in housing, described blood taking needle thereon end with crooked form setting, thereby allow to be bonded in this blood taking needle memory element in the inner mobile unit of recalling of blood taking needle memory element.
Fig. 4 be according to puncture auxiliary facilities of the present invention according to the cutaway view of the blood sampling box for needle or pin of Fig. 2 and Fig. 3 and part driver element.In figure, can clearly be seen that, pin or blood taking needle 10 respectively at top with crooked form setting, and can join to and recall in unit 9.From this figure, can also see, the first folder shape connector 15,16 of piston 7 with recall unit 9 and be connected, folder shape outstanding 15 is arranged on and recalls on unit, and in the cylindrical housings inside of piston, has passage or give prominence to.Thus, by the first folder shape connector, piston can and install the rotation of the whole longitudinal axis around its longitudinal axis, thereby also around the longitudinal axis rotation of blood sampling box for needle or pin; But this piston y direction with recall unit 9 and be fixedly connected with or be rigidly connected respectively.
Certainly, this folder shape is outstanding also can be connected with piston 7, and is recalling passage or circular the giving prominence to that also may have respective complementary shape on unit 9; Wherein, this folder shape is outstanding can single setting or a plurality of setting on circuit orbit.
The second folder shape outstanding 17,18 is arranged on and recalls between unit and blood taking needle memory element, one or more folder shape outstanding 17 with recall unit and be connected, outstanding 18 or passage of complementary shape is arranged on the inside of blood taking needle memory element circularly, wherein presss from both sides in outstanding 18 or the passage that shape outstanding 17 can be bonded on this complementary shape.
Thus, be used in resting position will recall unit 9 and remain fixed in the inside of blood taking needle memory element 11 by the second folder shape connector, wherein this is fixingly overcome by compression institute.Wherein this second folder shape connector is suitable for along installing whole y direction impermanency, being connected to blood taking needle memory element 11 by recalling unit 9.Wherein, in this resting position, recall unit 9 and move up in blood taking needle memory element 11 inside, and any blood taking needle all can not exit the bottom of blood taking needle memory element.As long as this for guaranteeing to exist resting position, recalls unit 9 and supports reliably all blood taking needles in blood taking needle memory element 11.In this case, in piercing process, according to double-head arrow 15, piston 7 and recall unit 9 can be temporarily at direction down sliding forward, and at the temporary transient upward sliding of direction backward; Wherein piston 7 comprises the piston-like element 7a acting on one of them blood taking needle.This has caused a selected blood taking needle or pin promptly to move forward or backward respectively, and makes piercing process become possibility.
Fig. 5 is according to another structural representation of the blood sampling box for needle or pin of puncture auxiliary facilities of the present invention and part driver element.Compare with Fig. 6, from this figure, can see the basic operation of auto levelizer.
By the contrast of Fig. 5 and Fig. 6, obviously, it is upper that the bottom of piston-like element 7a acts on blood taking needle 10b, and wherein blood taking needle 10b is arranged in a groove on the surface 14 of recalling unit 9.The same with other blood taking needle, this blood taking needle has bending in end thereon, thereby produces crooked end 10a.This is bonded on 14 the groove 13 of surface blood taking needle becomes possibility.
Fig. 5 and Fig. 6 only show three blood taking needles, yet, more than the blood taking needles of three, can annulus be set along the cylindrical housings of blood taking needle memory element 11.
According to arrow 15a, at driver element or piston 7, and piston-like element 7a is thus when move down respectively, the upper end of bottom 7d contact blood taking needle 10, and promote blood taking needle and move down in continuous conduit 19b, until the needle point of blood taking needle exits in the bottom of blood taking needle memory element 11; Wherein, this continuous conduit 19b is also for remaining blood taking needle 10, and with label 19 labellings.In the process moving forward at this, the upper end of blood taking needle 10 still remains in the groove 13 on the surface 14 of recalling unit, and moves down together with recalling unit 9.
Subsequently, due to not showing more details in driver element 2(figure) load with spring force, recall whole unit and move backward together with single blood taking needle, until blood taking needle enters blood taking needle memory element again in the bottom of blood taking needle memory element.Meanwhile, the upper end 10a of residue blood taking needle 10 remains on the previous position of blood taking needle memory element 11 inside, and does not move in continuous conduit 19.This can be clear that from Fig. 6.
Fig. 7 is the structural representation being tilted to according to the blood sampling box for needle or pin that there is no cladding element and the part driver element of the puncture auxiliary facilities in one embodiment of the invention of Fig. 2 or Fig. 3.As can be seen from the figure, single blood taking needle 10 is lined up circle in blood taking needle memory element 11 inside, and is supported on appropriate location by recalling unit 9, until recall unit 9, in blood taking needle memory element 11, moves down.This occurs in known manner by piston-like element 7a.
Piston-like element 7a, as shown in double-head arrow 7e, can be around the longitudinal axis rotation of device and blood sampling box for needle or pin, in this way, the lower end 7d of piston-like element 7a can approach single blood taking needle, can select new blood taking needle thus.
Fig. 8 shows part blood sampling box for needle or pin and the part driver element as shown in Figure 7 according to puncture auxiliary facilities of the present invention.In the figure, blood taking needle memory element is invisible, and wherein blood taking needle is arranged in this blood taking needle memory element.On the contrary, it is visible only recalling unit 9, and by folder shape connector 17 be bonded on blood taking needle memory element complementary shape passage or outstanding in (showing here), wherein this blood taking needle memory element around or surround and recall unit 9 respectively.
This also can be as seen from Figure 9, and wherein Fig. 9 is the planar structure schematic diagram of seeing from above of the blood sampling box for needle or pin in Fig. 8 and Fig. 7.From figure, can clearly be seen that, the upper end of single blood taking needle is bonded in 9 grooves 13 on the end face of recalling unit 9.This occurs in radiation direction.
Figure 10 is the profile of seeing along the longitudinal direction according to the blood sampling box for needle or pin of puncture auxiliary facilities of the present invention and part driver element as shown in Figure 2 or Figure 3.From figure, can clearly be seen that, the folder shape outstanding 15 of the first folder shape connector can be bonded in the circular channel of parts 7b of piston 7, blood taking needle is recalled to unit, at least at axial direction, is for good and all connected with driver element.
The upper end 10a of blood taking needle 10 is arranged in the groove 13 on the surface 14 of recalling unit 9 with the shape joint of curved surface.
Figure 11 is according to another embodiment of the present invention for the blood taking needle element cross-section schematic diagram of the auxiliary facilities that punctures.This puncture auxiliary facilities does not arrange a plurality of blood taking needles, on the contrary, is only provided with single blood taking needle 10, and wherein blood taking needle 10 has 10b，Gai bottom, bottom 10b and comprises needle point.
Blood taking needle member 20 further comprises blood taking needle supporter 21 and parts 22, and wherein blood taking needle or pin 10 are separately positioned on this blood taking needle supporter 21 inside; Parts 22 are shaped as cylindrical housings, and adjacent with blood taking needle supporter 21.
Contrast Figure 11 and two figure of Figure 12, clear according to the basic operation of this puncture auxiliary facilities of the present invention, Figure 11 shows the puncture auxiliary facilities while recalling, and Figure 12 shows while extending, and that is to say the puncture auxiliary facilities in puncture supporting process.
Serve as being called folder shape outstanding parts and can being bonded in the groove 25,26 of blood taking needle supporter 21 of cushion block 23,24, as long as cylindrical parts 22 integral body are around the longitudinal axis rotation of puncture auxiliary facilities, for example, with 45 ° of rotations.This illustrates by rotation arrow 27.
By by this way cylindrical parts 22 being reversed, the upper end 10a of pin 10 also reverses.This is because part 10d has angle with respect to remainder, and drives part 10d rotation during cylindrical parts 22 rotation.
As the arm in rearward end, cushion block 23,24 can twist off at the breakdown point place presetting.In this way, whole rear portion or cylindrical parts 22 rotate respectively to two grooves on position ，Gai position upper arm and blood taking needle supporter and match.
The second portion of pin is arranged in cylindrical parts 22 rigidly.This also can, by the forming process of cylindrical parts 22, realize pin together with second portion sprays (spray).
Figure 13 is in the puncture cross sectional representation of inside of auxiliary facilities of part according to Figure 11 and Figure 12 blood taking needle member.Blood taking needle member is successively by the groove 25,26 in cylindrical parts 22, blood taking needle supporter 21,10, blood taking needle supporter 21, and 23,24 of cushion blocks form.Cylindrical parts 22 comprises and is arranged on its end face or preferred cylinder shape groove below, wherein in this cylinder shape groove, is provided with female thread 28.On outstanding or cylindrical bolt 31, be respectively equipped with external screw thread 29, with these female thread 28 complementations.Wherein, bolt or outstanding 31 is respectively a part for parts 30, thereby is also on the whole a part for puncture auxiliary facilities.Due to screw thread 28,29, when blood taking needle member stores, these parts 30 act on cylindrical parts 22 rotation that has caused cylindrical parts 22 mutually, and wherein this blood taking needle member is comprised of cylindrical parts 22, blood taking needle supporter 21, pin, cushion block and groove substantially.In the time of in being stored in puncture auxiliary facilities, blood taking needle member stands rotation thus.In this way, only there is cylindrical parts 22 to reverse with respect to blood taking needle supporter 21, until cushion block 23,24 is arranged on groove 25,26 tops.The piercing process subsequently being driven by drive member (not showing more details here) has caused pin and the translational motion of cylindrical parts 22 in puncture direction, at illustrated left direction.In this example, cushion block 23,24 is bonded in groove 25,26, and the tip above of pin 10 can exit blood taking needle supporter, thereby carries out actual piercing process; Wherein blood taking needle supporter accurately leads to pin.Subsequently, cylindrical parts 22 again pulls back in the operation of recalling member, and pulls the second portion 10c of pin 10 simultaneously, this means that the front area of pin exits patient's skin again, and piercing process can be thought completed subsequently.
In application documents disclosed any separately or in conjunction with being novel feature with respect to prior art, all requiring is to be vital to the present invention.
Claims (11)
1. have for obtaining the puncture auxiliary facilities of at least one blood taking needle (10) of body fluid, comprise with lower member:
Driver element (2); Described driver element (2) by described blood taking needle (10) from resting position along puncture direction (15,15a) move to puncture position to carry out piercing process; And
Recall unit (9,22), described in recall unit (9,22) after described piercing process is carried out, described blood taking needle (10) is moved to its resting position from puncture position;
It is characterized in that, described blood taking needle is comprised of pin (10), wherein do not have parts and described pin (10) to be rigidly connected, and described pin (10) comprises linearly extended first (10c).
2. puncture auxiliary facilities according to claim 1, is characterized in that, described pin is shaft-like, and described pin is made by metal material.
3. puncture auxiliary facilities according to claim 1 and 2, is characterized in that, described pin (10) comprises first end (10b) and the second end (10a); Wherein said first end (10b) has puncture tip (10g), and described the second end (10a) has linearly extended second portion (10d); Described first and described second portion (10c, 10d) form angle (10f) mutually.
4. puncture auxiliary facilities according to claim 3, is characterized in that, described angle (10f) is selected from the scope of 10 °-180 °, is preferably 90 °.
5. according to the puncture auxiliary facilities described in claim 3 or 4, it is characterized in that, described in the second portion (10d) of described pin (10) is bonded on, recall in the groove (13) of unit (9,22).
6. puncture auxiliary facilities according to claim 5, is characterized in that, described groove is the groove (13) on the described end face (14) of recalling unit (9).
7. according to the puncture auxiliary facilities described in arbitrary claim above, it is characterized in that, also comprise that preferred general is columniform blood taking needle memory element (11), described blood taking needle memory element (11) comprises a plurality of blood taking needles (10), described blood taking needle memory element (11) is recalled unit (9) described in surrounding, and described in to recall unit (9) removable in described blood taking needle memory element (11); Wherein said blood taking needle memory element (11) is substantially cylindrical housings, and described blood taking needle (10) in described blood taking needle memory element (11) in parallel to each other scattering device on circuit orbit; The described unit (9) of recalling is cylindrical substantially, at least partly; Described groove (13) is for extending in the groove at least part of cylindrical end face (14) of recalling unit (9) along radiation direction.
8. puncture auxiliary facilities according to claim 7, it is characterized in that, described driver element (2) comprises at least one piston-like element (7a), in described piercing process, the pistons end (7d) of described piston-like element (7a) contacts with the end of described selected blood taking needle (10), and the pistons end (7d) of described piston-like element (7a) along described puncture direction (15a) end at the inner mobile described selected blood taking needle of described blood taking needle memory element (11); Described piston-like element (7a) is suitable for by described that to recall unit (9) mobile with respect to described blood taking needle memory element (11).
9. according to the puncture auxiliary facilities described in claim 7 or 8, it is characterized in that, each pin (10) is all arranged in the inner continuous conduit (19) of blood taking needle memory element (11), and described blood taking needle memory element (11) be shaped as cylindrical housings.
10. according to the puncture auxiliary facilities described in any one in claim 1-5, it is characterized in that, described puncture auxiliary facilities comprises single pin (10), it is interior to obtain the rigging position of parts (22) that the second portion (10d) of described pin (10) is bonded on cylindrical parts (22), and wherein said rigging position assembles pin (10) for passing through by relative blood taking needle supporter (21) torsion of described cylindrical parts (22).
11. puncture auxiliary facilities according to claim 9, is characterized in that, described blood taking needle supporter (21) comprises the groove (25 that is arranged on end, 26), the cushion block (23,24) of described cylindrical parts (22) is arranged in described groove (25,26) after rotation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011015590.2 | 2011-03-30 | ||
| DE102011015590.2A DE102011015590B4 (en) | 2011-03-30 | 2011-03-30 | Lancing device with at least one lancet for the recovery of body fluids |
| PCT/EP2012/054657 WO2012130638A1 (en) | 2011-03-30 | 2012-03-16 | Piercing aid having at least one lancet for obtaining bodily fluids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103533891A true CN103533891A (en) | 2014-01-22 |
| CN103533891B CN103533891B (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280017084.9A Active CN103533891B (en) | 2011-03-30 | 2012-03-16 | There is the puncture auxiliary equipment of at least one blood taking needle for obtaining body fluid |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103533891B (en) |
| DE (1) | DE102011015590B4 (en) |
| WO (1) | WO2012130638A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324289A (en) * | 2018-04-17 | 2018-07-27 | 青岛市市立医院 | A kind of blood collection device of medical test |
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| US5029583A (en) * | 1986-07-22 | 1991-07-09 | Personal Diagnostics, Inc. | Optical analyzer |
| DE4212315A1 (en) * | 1992-04-13 | 1993-10-14 | Boehringer Mannheim Gmbh | Blood lancet device for drawing blood for diagnostic purposes |
| IL101720A (en) * | 1992-04-29 | 1998-09-24 | Mali Tech Ltd | Needle for syringe or the like |
| US5971941A (en) * | 1997-12-04 | 1999-10-26 | Hewlett-Packard Company | Integrated system and method for sampling blood and analysis |
| DE10010694A1 (en) * | 2000-03-04 | 2001-09-06 | Roche Diagnostics Gmbh | Lancet including tipped needle with body surrounding tip |
| DE10022720B4 (en) * | 2000-05-10 | 2006-10-12 | Hahn & Hahn Gmbh | Lancing device |
| US8641644B2 (en) * | 2000-11-21 | 2014-02-04 | Sanofi-Aventis Deutschland Gmbh | Blood testing apparatus having a rotatable cartridge with multiple lancing elements and testing means |
| US20040049129A1 (en) * | 2002-09-05 | 2004-03-11 | Yan Qi | Wafer assembly having a resilient extendable/retractable needle means for healthcare |
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2011
- 2011-03-30 DE DE102011015590.2A patent/DE102011015590B4/en active Active
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- 2012-03-16 CN CN201280017084.9A patent/CN103533891B/en active Active
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| WO2009132217A1 (en) * | 2000-11-21 | 2009-10-29 | Pelikan Technologies, Inc. | Blood testing apparatus having a rotatable cartridge with multiple lancing elements and testing means |
| CN1662174A (en) * | 2002-04-19 | 2005-08-31 | 佩利坎技术公司 | Method and apparatus for body fluid sampling equipment |
| US20070219574A1 (en) * | 2002-04-19 | 2007-09-20 | Dominique Freeman | Method and apparatus for a multi-use body fluid sampling device with analyte sensing |
| US20090024009A1 (en) * | 2002-04-19 | 2009-01-22 | Dominique Freeman | Body fluid sampling device with a capacitive sensor |
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| CN108324289A (en) * | 2018-04-17 | 2018-07-27 | 青岛市市立医院 | A kind of blood collection device of medical test |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011015590B4 (en) | 2015-11-19 |
| CN103533891B (en) | 2016-12-07 |
| WO2012130638A1 (en) | 2012-10-04 |
| DE102011015590A1 (en) | 2012-10-04 |
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