Background technology
Generally measure with electrocardiograph (ECG) and the information about testee's cardiac function is provided.By placing the sensors on the suitable position of testee, electrode records waveform from testee's human body surface and sends such as ECG device to, amplified display or print the wavy curve figure representing testee's heart condition, is analyzed and diagnoses being supplied to doctor or relevant speciality technical staff.
In order to obtain sufficient information testee's heart condition to be analyzed diagnosis, common 12 lead electrocardiogram need position near chest to place 6 electrodes, i.e. V1, V2, V3, V4, V5, V6 totally 6 thoracic wall electrodes, add 4 limb electrodes, totally 10 electrode synchronized samplings;For 18 Lead Synchronous ECGs, the right side chest typically also needed to and back position respectively arrange other 3 thoracic wall electrodes, it is respectively V3R, V4R, V5R totally 3 electrodes of V7, V8, V9 totally 3 electrodes and the right chest at back, adds 4 limb electrodes, totally 16 electrode synchronized samplings.
Obtaining electrocardiogram accurately, it is highly important that electrode is put into exactly accurate anatomical location.But, even for the medical worker of specialty, owing to the body sizes of testee are different, the work of this accurate placement electrode also has suitable difficulty, and the most this work becomes increasingly difficult.Such as, on ambulance or at the scene with portable ECG device, carry out ECG measurement, due to it is pressed for time, it tends to be difficult to localizing electrode quickly and accurately.
Existing patent discloses the multiple ECG of convenience and measures the device particularly facilitating its positioning of electrode.Typically, these devices include certain band or belt-shaped device (for example, with reference to patent documentation 1 or patent documentation 2).
Disclosed in patent documentation 1 or patent documentation 2, belt-shaped device can directly adhere to or be fixed on chest, it is greatly saved wear time, and, its electrode is arranged near required anatomical location, can adjust the position of electrode more accurately by arranging the bar shaped chute of the trickle adjustment electrode position of energy further.In addition, in patent documentation 2, the electrode of belt-shaped device realizes electrically connect also by wire and the described bonder terminal of the bonder terminal on the edge being electrically connected to belt-shaped device one end in advance, so decreases technical staff due to the chance of adapter cable accidentally and mistakenly.
Patent documentation 1: China's utility model Granted publication the CN2524671Yth
Patent documentation 2: Chinese invention patent Granted publication the CN1191784Cth
Although multiple electrodes can be disposably placed into substantially suitably anatomical location by above-mentioned belt-shaped device, facilitate laying of electrode, but still there is many defects or inconvenient.
When ECG measures, electrode needs to contact well with human body skin, but chest the unevenness due to people, there is the region of depression, when this makes belt-shaped device be fixed on testee's chest, the electrode arranged at corresponding sunk area may not stably contact the skin of chest of testee.
Although belt-shaped device disclosed in patent documentation 1 and patent documentation 2 all has can be with the rectangular slot of fine adjustments electrode position or bar hole, it is suitable for the testee with different bust sizes using, but it also brings along problem, because chest is the most completely flat, when therefore using, electrode position may easily deviate the position of original setting.
Additionally, belt-shaped device disclosed in patent documentation 1 or patent documentation 2 be required for special fixing device by as described in belt-shaped device be fixed on testee's chest.Such as, belt-shaped device disclosed in patent documentation 1 is often required to arrange sufficiently long fixing band at its two ends, such as can enclose around the whole chest of testee one, and need on the fixing band at two ends, arrange the setting fastening part cooperated, so that belt-shaped device to be fixed on testee's chest, this setting fastening part is the most sufficiently flexible and is not easy two sections of ropes for knotting of fracture, or the thread gluing that is bonded directly together or other buckling piece, but, setting fastening and trip the most time consuming.And the inner side of belt-shaped device disclosed in patent documentation 2 (with the side of contact skin) needs coating for the adhesive-layer adhering on testee's skin, owing to this belt-shaped device of hygienic issues is generally not suitable for reusing, in addition, for operator such as doctor, belt-shaped device disclosed in patent documentation 2 sticks to testee's chest, if the position that belt-shaped device is placed for the first time is improper, the position of belt-shaped device to be changed can be relatively cumbersome.Hospital or MEC carry out ECG measure time, often have and substantial amounts of wait to see the doctor or wait inspection person, slight inconvenience all may can cause belt-shaped device to need to do in a large number, at hospital or MEC etc., the place that ECG measures being difficult to obtain large-scale application.
Summary of the invention
It is an object of the invention to provide the chest of a kind of people of overcoming have sunk area, unevenness and be easily caused the belt-shaped device being provided with electrode of the electrode defect bad with contact skin.Additionally, the operable testee's chest that is simply secured in of this belt-shaped device, and the convenient adjustment of electrode position, after adjustment, its position is not susceptible to again deviation.
In one embodiment, a kind of belt-shaped device measuring electrode for placing electrocardio, including band body, the electrode setting unit of the predetermined anatomical location of the substantially chest level of testee to be navigated to it is provided with in described band body, one described electrode setting unit can arrange a described electrode, described electrode has to described band body side prominent, for the electrode contact with testee's contact skin, during test, described electrode contact can automatically adjust the distance of described electrode contact and described band body according to described electrode contact skin to be contacted from the distance of described band body.Stretching out the distance of band body owing to can regulate electrode contact so that even if the chest region that electrode to be contacted has depression, electrode contact still can stably contact the skin of this sunk area.
In one more specifically embodiment, can be by arranging flexible member between described band body and described electrode contact, by described flexible member act on the elastic pressure of electrode contact adjust electrode contact leave band body distance and make electrode contact well with contact skin, and utilize the electric conductivity of described flexible member to transmit electrode signal.Elastic pressure was both provided due to flexible member, has transmitted again electrode signal, the most this design simple in construction, save material, low price.
Preferably, above-mentioned flexible member is a hollow spring.Hollow spring is all easy to combine with band body and electrode contact.
Preferably, above-mentioned hollow spring has the diameter gradually changed so that the turn that after compression, diameter is less can be in the turn being relatively large in diameter.So, in the case of hollow spring has same long original length, it is provided that longer Adjustable Range.
In above-mentioned preferred implementation, described electrode setting unit includes the electrode receiving portion penetrating described band body, described electrode also includes the cylinder being arranged in described electrode receiving portion, and described electrode contact is fixed on one end of described cylinder, and described hollow spring is sheathed on described cylinder.Connecting electrode contact by cylinder, electrode signal transmission is relatively reliable, and the bulk strength of electrode is big, it is not easy to damage.
It is highly preferred that on described cylinder, electrode collar or electrode pads can be provided with between the outside of described band body and described band body and described flexible member, to reduce the abrasion to band body.
In the above-described embodiment, described band body is provided with multiple electrode setting unit.Owing to being provided with multiple electrode setting unit, thus multiple electrode can be set and lead the test of synchronous electrocardiosignal adapting to difference.Such as it is suitable for 12 tests leading electrocardiogram, or 18 tests leading electrocardiogram.
Preferably, described band body is also attached to connect the interface of 4 limb lead electrodes.So, when such as doing 12 lead electrocardiogram or 18 lead electrocardiogram of routine, it is convenient to the limb lead electrode needed for connection.
In the above-mentioned embodiment with multiple described electrode setting unit, being provided with multiple described electrode in multiple described electrodes are arranged, the described electrode contact that the described electrode contact of multiple described electrodes can adjust is different and different according to described predetermined anatomical location from the ultimate range of described band body.And preferably, described predetermined anatomical location is the closer to the sunk area in the middle of testee's anterior part of chest, and the described electrode contact that corresponding described electrode can adjust is the longest with the ultimate range of described band body.Owing to the adjustment distance of various location electrode contact is different, easily design multiple electrodes that electrode contact sense for testee is more consistent.
In the above-mentioned embodiment with multiple described electrode setting unit, preferably at least partial electrode setting unit includes electrode position adjustment structure.Arranging electrode position adjustment structure and can be conveniently adjusted the position of electrode, this is particularly useful to obtain more accurate ECG signal for being accurately positioned electrode.
In the above-mentioned embodiment with electrode position adjustment structure, described electrode position adjustment structure includes elongated slit, electrode retainer it is provided with in described slit, described electrode can move to regulate the position of described electrode along described slit, and described electrode retainer can stop described electrode to move in described electrode position adjustment structure to a certain extent.So-called " to a certain degree ", it is exactly that appropriateness is exerted oneself, the interception of this electrode retainer can be broken through again, make described electrode can move to regulate the position of described electrode in slit along described slit, but in the case of not applying beyond a certain size special external force, electrode is positively retained at the position of setting.Owing to being provided with electrode retainer, after setting electrode position, deviation is less likely to occur electrode position.
In the above-described embodiment, described band body has two ends, for described band body is fixed on testee's chest.
Preferably, one of them end connects weight, and another end is fixed on the tool side of lying couched for testee.
Preferably, another end connects a polar body, during use, described polar body is inserted into from testee side the back of described testee and be used for that described testee couches lie between tool, connecting with fixing described belt-shaped device has one end of described plate body.
The mode of these fixing belt-shaped device is simpler than conventional fixed form, and beneficially belt-shaped device is applied more popularly.
Preferably, described plate body is also equipped with electrode setting unit.For some special state of an illness, needing either synchronously or asynchronously to sample the ECG signal of testee's back chest just can correctly diagnose.Owing to being also provided with electrode for being inserted on testee back and the polar body lain between tool, just can provide the collection of electrocardiosignal to back chest, it is the most novel and convenient to be therefore so designed that.
Preferably, at least one of which of above-mentioned two end and described band body be connected by be flexibly connected.For example with slide fastener, the fastener cooperated etc. is flexibly connected, as such, it is possible to be convenient for changing various end, selects different fixed forms.
The present invention also provides for a kind of electrocardiosignal measuring instrument, including instrument body and any of the above-described a kind of belt-shaped device, and sends the signal of the electrode from described belt-shaped device to described instrument body by wire.
Detailed description of the invention
(basic structure of belt-shaped device)
Referring to Fig. 1, belt-shaped device 1 is used for being placed into patient and carries out ECG measurement.Belt-shaped device 1 includes band body 10 and two ends 12 and 13, and band body 10 entirety is longilineal, say, that the first end 12 on the left of diagram is noticeably greater than its width to the length the second end 13 on right side.The length of band body 10 corresponds roughly to the chest width between the human body left and right sides, it is also possible to shorter than the chest width between the human body left and right sides but it also may be can be also required to arrange the situation of thoracic wall electrode around the length of a thoracic wall substantially circle adapting to back.
Band body 10 is non-conductive flexible belt body, can be the multiple structure of single layer structure or overlapping, and the material of layer can be various fabric, rubber, plastics, thin film etc..When being multiple structure, the material of each layer can be the same or different, but is preferably the good fabric of human feeling with the layer of the inner side of contact skin.
On band body 10, the substantially anatomical location selected being provided with multiple electrode setting unit 3, multiple electrodes 2 measured for ECG are arranged in electrode setting unit 3.Further, some electrode 2 each on band body 10 or therein is provided with the electrode position adjustment structure of the position of adjustable electrode 2.
Fig. 2 is the figure of the amplification of the fine structure of an electrode setting unit 3 including electrode position adjustment structure 30.Electrode position adjustment structure 30 is an elongated slit 31 on the whole, and these gaps 31 pass completely through band body 10, along the length direction of slit 31, constitutes two generally saw-toothed shapes in long limit of slit 31 and mutually substantially symmetrically extends.On the symmetrical long limit of the zigzag of slit 31, each two faces the electrode retainer 32 constituting a narrowed width making slit 31 to the protuberance 321,322 that slit 31 is projecting inward, between electrode retainer 32 or recess 331,332 that between electrode retainer 32 with the end of the length direction of slit 31, each two is corresponding constitutes one and the electrode receiving portion 33 that adapts of the size of the electrode 2 being arranged in slit 31, electrode receiving portion 33 is disposed adjacent with electrode retainer 32.When electrode 2 is positioned at electrode receiving portion 33, electrode retainer 32 can stop electrode 2 to move with being intended in slit 31, but owing to the material of band body 10 has certain pliability, suitably firmly stir electrode 2, then can break through the prevention of electrode retainer 32, electrode 2 is toggled it to another electrode receiving portion adjacent thereto from front electrode receiving portion 33.
Each slit 31 is not all straight, the most a certain or some slit 31 entirety can be arc, the length that slit 31 is not just as, slit 31 has difformity and length to be the large changes in order to adapt to the anatomical location required by different body profile dimensions testee.
Each slit 31 is provided with 1-15 electrode retainer 32, preferably 2-8, more preferably 3-6.Can be equidistant between adjacent two electrode retainers 32, it is possible to be Unequal distance.Relative two protuberance 321,322 constituting electrode retainer 32 is preferably arc protuberance but work particularly restriction.When the material of band body 10 is the most soft material, the most common fabric, electrode retainer 32 preferably one is more slightly larger than described slit area, it is fixed on the plates on band body 10 or in its interlayer, and the material of these plates is preferably slightly hard than the material of band body 10 but has the material of excellent toughness, such as plastics or film.When band body 10 has certain hardness as plastics, film etc., electrode retainer 32 is preferably one-body molded with band body 10.
Owing to all constituting electrode receiving portion 33, therefore more than the number of electrode retainer 32 1 of the number of electrode receiving portion 33 between electrode retainer 32 and between the end in electrode retainer 32 and slit length direction.Distance d between adjacent two electrode receiving portions 33 is 5-25mm, more preferably 8-15mm.Electrode receiving portion 33 entirety is preferably configured as the shape of circular but the most particularly limits, other shapes such as such as ellipse, polygon are also possible, can also be in succession closing run-track shaped of standard stadium of track and field of straight way as bend, but preferably adapt with the shape being arranged in electrode 2 therein.Its size dimension preferably uses same size, to facilitate processing.
Electrode 2 can be the various electrodes being suitable for and being fastened in electrode position adjustment structure 30, such as columnar electrode.Fig. 3 schematically shows a kind of columnar electrode 20 and a kind of electrode collar 200 being usable on this columnar electrode 20.The arbitrary cross section of this columnar electrode 20 is the most rounded, including the electrode contact 21 with testee's contact skin, the signal leading-out portion 22 can being connected with wire and the cylinder 23 being between electrode contact 21 and signal leading-out portion 22.Cylinder 23 is away from being relatively large in diameter of one end 23A of electrode contact 21, and therefore cylinder 23 and electrode contact 21 are integrally formed into the shape of a spill draw-in groove 24.Owing to band body 10 has certain pliability, slit 31 is the most elongated, and therefore columnar electrode 20 can easily pass through slit 31, and matrix draw-in groove 24 is arranged in electrode receiving portion 33.In order to ensure that columnar electrode 20 is fastened on difficult drop-off after electrode receiving portion 33, the outside of band body 10 can be positioned on spill draw-in groove 24 and block again and set an electrode collar 200.Electrode collar 200 entirety is a circular elastic sheet 201, circular elastic sheet 201 has an installation seam 202 along its radial direction, when electrode collar 200 is installed, seam 202 is installed be separated by a distance to both sides so that circular elastic sheet 201 can be crossed the spill draw-in groove 24 of columnar electrode 20 and be fastened on spill draw-in groove 24.
Fig. 4 schematically shows another kind of columnar electrode 20.nullElectrode contact 21 with columnar electrode 20 illustrated in fig. 3、The shape that cylinder 23 is integrally formed into a spill draw-in groove 24 with signal leading-out portion 22 is different,The cylinder 23 of columnar electrode 20 illustrated in fig. 4 is identical with the maximum gauge of signal leading-out portion 22,Therefore,The electrode setting unit 3 that this columnar electrode is only suitable on band body 10 is not provided with the electrode position adjustment structure 30 with longer slit 31,And only offer the situation of the electrode receiving portion 33 of the rounded through hole identical or bigger with cylinder 23 diameter of columnar electrode 20,This columnar electrode 20 is fixed in order to install,Need on cylinder 23, be separately provided a pad draw-in groove 25,Pad collar 211 is set after electrode pads 210 is set outside band body 10 in pad draw-in groove 25,Or directly in pad draw-in groove, card sets electrode collar 200.Being different from electrode collar 200, electrode pads 210 need not arrange installation seam.
Signal leading-out portion 22 can be that various applicable connection wire is with the structure derived by signal.Such as bolt arrangement, connects and has the packing ring of wire to be set on bolt, recycles nut screwing clamping.Preferably, signal leading-out portion 22 shape the most as shown in Figure 3 or Figure 4 as in fastener in protruding pin thread shape, during use, the box being connected with wire is fastened with this pin thread thus by signal derivation.This connected mode connects the most stable, and being connected and disconnected from of wire and electrode is the most very convenient.Signal leading-out portion 22 directly clamped by the clip (can be such as common alligator clamp) that can also use band wire.The other end of wire can be directly connected to ECG measuring instrument by connector, total connection terminal 14 can also be set in band body 10 one end, see Figure 10, (figure only schematically show a wherein connection wire 15 with wire 15, actually, each electrode 2 is electrically connected with being connected terminal 14) first it is connected to signal leading-out portion 22 connect terminal 14, then with multicore cable, connection terminal 14 and ECG measuring instrument is coupled together.By arranging total connection terminal 14, decrease various mixed and disorderly electrode connecting line, it is to avoid on the various interference measured and impact.
The electrode 2 arranged on above-mentioned band body 10 all will be positioned to the anatomical location of testee's substantially chest level, is all thoracic wall electrode.But, in order to obtain 12 lead electrocardiogram or 18 lead electrocardiogram of routine, except thoracic wall electrode, in addition it is also necessary to there is extremity electrode.With further reference to Figure 10, belt-shaped device 1 farther includes one or more interface 16, and interface 16 can connect 4 limb lead electrode wires 17, it is respectively left upper extremity crosslinking electrode line 17-1, right upper extremity crosslinking electrode line 17-2, left lower extremity crosslinking electrode line 17-3, right lower extremity crosslinking electrode line 17-4.Interface 16 also be connected terminal 14 and electrically connected.So, when needing 12 lead electrocardiogram or 18 lead electrocardiogram doing routine, just can extend above-mentioned 4 the limb lead electrode wires 17 of connection easily, and 4 the limb lead electrodes described 4 limb lead electrode wires 17 connected are together with the thoracic wall electrode being arranged on band body 10, form the electrode required for 12 complete lead electrocardiogram or 18 lead electrocardiogram, therefore, the application of belt-shaped device 1 can so be further expanded easily.
Band body 10 preferably employs multiple structure.So, can be embedded in the interlayer of band body 10 with signal leading-out portion 22 and the total wire 15 connecting terminal 14 connection, the shortcoming that wire easily disturbs operator that belt-shaped device is carried out various operation can be eliminated.
It should be noted that each electrode 2 of belt-shaped device 1 is not required for arranging electrode position adjustment structure 30.General, each electrode in belt-shaped device 1 can predefine the position of one of them electrode.Such as, the position feature visibility points such as breast ridge, clavicle, nipple, which root bone or its comprehensive defined location can be utilized to predefine as the reference position of one of them electrode, therefore, this electrode can be not provided with electrode position adjustment structure 30 and become an electrode that position is fixing in belt-shaped device 1.When using belt-shaped device 1, first this can be had the electrode of fixed position and be directed at and fix belt-shaped device 1 relative to reference position in advance, then regulate the position of other electrodes with electrode position adjustment structure 30.In order to easy to use, this belt-shaped device 1 can also indicate, with obvious mark, the electrode that this position with reference role is fixing, such as, which which can print " several fingers on the left of right breast " or " several fingers on the right side of breast ridge, and between rib " such word such as in belt-shaped device 1 to indicate.
Preferably, at least provided with 6 electrode setting units 3 on described band body 10, with adapt to routine 12 lead ECG measure.
It is highly preferred that at least provided with 9 electrode setting units 3 on described band body 10, measure adapting to the 18 of the routine ECG that lead.
(fixed form of belt-shaped device)
Fixing belt-shaped device except existing routine by setting fastening part, the belt-shaped device 1 of the present invention can use gravity mode to be fixed.Referring also to Fig. 1 and Fig. 5, is respectively connected by a belt body 51 in two ends 12,13 of belt-shaped device 1 and has a weight 5.Weight 5 can be such as to insert bead or the body in small, broken bits of other shapes that the bigger material of the proportion such as lead or steel makes in the textile bags sealed, it is also possible to is that belt body 51 directly bundlees a cylinder made of the material that the proportion such as lead or steel is bigger.Belt body 51 can use the material identical with band body 10 one-body molded.Belt body 51 can also use the material identical or different with band body 10, it is connected with the end 12,13 of band body 10 by the conventional connected mode such as stitching, pressing, bonding, gluing, more preferably, belt body 51 can be being can be connected with tripping with the end 12,13 of band body 10 by modes such as button, slide fastener, fasteners.
During use, testee lies in after having above, and belt-shaped device 1 is covered the chest testee by operator, and the weight 5 at belt-shaped device 1 two ends naturally hangs down in testee's health both sides and belt-shaped device 1 is fixed on testee's chest.
In another fixed form, the structure of one of them end of two ends 12,13 of belt-shaped device 1 is identical with the structure of above-mentioned embodiment, and i.e. being connected by a belt body 51 has a weight 5.Except that, the other in which end of two ends 12,13 of belt-shaped device 1 is fixed in advance by belt body 51 and allows what testee couched to lie on tool side.Described fixing can be to be flexibly connected, such as, be tied directly to belt body 51 to lie on tool, or belt body 51 is provided with, with tool of lying, the various snap close that can cooperate.
During use, first belt-shaped device 1 being placed in and lie and have fixing side, after testee lies down, belt-shaped device 1 is walked around testee's chest by the one end picking up connection weight 5, opposite side testee is decontroled, and makes weight 5 naturally hang down and belt-shaped device 1 is fixed on testee's chest.
Being lain on tool owing to belt-shaped device 1 one end is fixed in advance, when carrying out ECG measurement, the operation that belt-shaped device is fixed on testee's chest is more convenient simpler than the 1st embodiment.
In another fixed form, one of them end of two ends 12,13 of belt-shaped device 1, as above-mentioned embodiment, is connected by a belt body 51 and has a weight 5.Except that, seeing Fig. 6, in this embodiment, the other in which end of two ends 12,13 of belt-shaped device 1 is connected with a plate body 6 by belt body 51.
During use, first allow testee lie down, then plate body 6 is inserted testee back, utilize testee's body wt pressure applied plate body 6 is pressed in back and lies between tool.Then, belt-shaped device 1 is walked around testee's chest from side, is hung down naturally at opposite side in the one end connecting weight 5 and belt-shaped device 1 is fixed on testee's chest.
The surface of plate body 6 had better not be the most smooth, is beneficial to plate body 6 and can obtain enough frictional force and be not easy to slide.The top layer of plate body 6 can also cover with the material such as fabric, rubber, so that human body sensory is comfortable.
When belt body 51 is connected with plate body 6, belt body 51 preferably end with band body 10 is flexibly connected by modes such as thread gluings.
When suspecting that testee exists right ventricle or left ventricle positive rear wall myocardial ischemia and myocardial infarction, generally require and do 18 lead electrocardiogram.The conventional practice is, after formerly finishing 12 lead electrocardiogram, then adds and is right chest V3R, V4R, V5R tri-and leads and chest back V7, V8, V9 tri-lead, and the operation of this practice is extremely onerous, and cannot accomplish to synchronously complete.
In order to solve the problems referred to above, in above-mentioned another fixed form, on above-mentioned plate body 6, it is also provided with electrode 2 further.Specifically, described band body 10 is provided with V1, V2, V3, V4, V5, V6 and V3R, V4R, V5R totally 9 electrodes 2, above-mentioned plate body 6 arranges V7, V8, V9 totally 3 electrodes 2, so just can the most synchronously carry out 18 and lead ECG measurement.
Additionally, the electrode 2 on plate body 6 can also arrange electrode position adjustment structure 30 equally, it is also possible to arrange electrode retainer 32 in this electrode position adjustment structure 30 further.
(electrode of improvement)
In the various embodiments described above, even if weight is the heaviest, also there is partial electrode 2 can not illustrate with Fig. 6 with testee's skin good contact, its reason in reality.Seeing Fig. 7, the contoured skin shape of cross section of parcel human chest 100 is the most all cambered outwards, and the particularly cross-sectional profiles at the skin 101 of the mid portion of anterior part of chest shows significantly to the indent of thoracic cavity.When belt-shaped device 1 is fixed on testee's chest, the band body 10 of belt-shaped device 1 is drawn straight in the part of testee's anterior part of chest by gravity, therefore forms an obvious sunk area 110 between the skin 101 of the mid portion of band body 10 and anterior part of chest.Existence due to sunk area 110 so that be positioned close to the region of this sunk area 110 electrode 2 electrode contact 21 sometimes can not well with testee's contact skin.
The structure of electrode 2 is made improvements on the basis of the various embodiments described above by the present invention, makes the length being arranged on the electrode 2 of belt-shaped device 1 diverse location different.Fig. 8 represents the structure of the columnar electrode 20 of a kind of improvement.Comparing with Fig. 3 or Fig. 4, identical parts use identical reference.Theing improvement is that of columnar electrode 20 shown in Fig. 8, for being arranged in band body 10 the corresponding columnar electrode 20 near sunk area 110 region, its cylinder 23 is more longer than the length of the cylinder 23 of the columnar electrode 20 being arranged on other positions, even if making in the case of band body 10 is flattened, cylinder 23 also has enough length makes electrode contact 21 can touch the skin of testee.
Additionally, for providing better contact force, a flexible member 26 can be arranged between electrode contact 21 and band body 10 to provide an elastic pressure to electrode contact 21.This makes in the case of band body 10 is flattened, and band body 10 can provide an enough elastic force to make electrode contact 21 can contact the most well with the skin of testee by this hollow spring to electrode contact 21.
This flexible member 26 preferably hollow spring, can be set on cylinder 23 and be arranged between electrode contact 21 and band body 10 by this hollow spring.It is highly preferred that the diameter of this hollow spring is change, such as in the middle of maximum, two ends taper into, and so, when compressing this hollow spring, the turn of minor diameter can be in the turn of indentation major diameter so that the length of compression rear spring can be extremely short.So, in the case of hollow spring has same long original length, it is provided that longer Adjustable Range.
In addition, in order to reduce the flexible member 26 abrasion to band body 10 in the case of being provided with flexible member 26, and make electrode 2 smoothly move in the slit 31 of electrode position adjustment structure 30, electrode pads 210 can be set between flexible member 26 and band body 10 on cylinder 23.In addition, on cylinder 23, electrode pads 210 also should be set outside band body 10, pad collar 211 is set in pad draw-in groove 25 simultaneously, or electrode pads 210 and pad collar 211 can also be not provided with, and directly electrode collar 200 (not shown) is directly set in pad draw-in groove 25, drop out to prevent columnar electrode 20 from departing from from band body 10.
In addition, except the columnar electrode near chest intermediate recess region 110, if the electrode 2 that other positions use also is columnar electrode, can also the suitable flexible member of installation length 26 between its electrode contact 21 and band body 10, the most hollow spring, so that electrode contact 21 can provide good contact pressure to testee's skin.
Fig. 9 illustrates the structure of the columnar electrode 20 of another kind of improvement.The length of its middle column body 23 is the shortest, is not integrally formed with electrode contact 21 or fixing, only acts the effect being fastened on electrode receiving portion 33.Flexible member 26 one end is fixed with electrode contact 21, such as pass through to be welded and fixed or be arranged on the installing hole on electrode contact 21 to fix, one end snare is positioned on the pad draw-in groove 25 inside band body 10 on cylinder 23, utilizes the electric conductivity of flexible member 26 to transmit electrode signal.
It should be understood that the detailed description of the invention of the present invention is for the present invention will be described rather than is defined.
Such as, for the weight of weight 5, as long as it will be understood by those skilled in the art that so that the electrode 2 that is arranged in belt-shaped device 1 is effectively the most permissible with the contact skin of testee, the weight that such as 200 to 1000 grams materials are had.Although bigger weight can improve the stability of belt-shaped device, make electrode more well with the contact skin of testee, but it is the most physical also to consume operator when using, and it is unfavorable that this is particularly likely to cause women operator.
And for example, the connected mode of belt body 51 with band body 10 is the most particularly limited, it is preferable to employ the movable connection method that can be conveniently connected and disconnected from, such as connected by modes such as slide fastener, the fasteners that cooperates, so that band body 10 can connect different fixtures to be suitable for different fixed forms, it is also convenient for changing the weight 5 of Different Weight to be suitable for different operators.
And for example, for columnar electrode 20, the electrode contact 21 shown in Fig. 3, Fig. 4 and Fig. 8 is a kind of smooth metal contact with arc convex, but common sucked type contact is also possible.
And for example, the electrode retainer 32 in the present invention is to form with band body 10 but it also may be that the mode fixing an electrode retainer closed with slit 31 matching form in inner surface, outer surface and the interlayer of band body 10 is formed.
And for example, not all of electrode 2 is required for using columnar electrode in belt-shaped device 1.Such as, except near the electrode in chest intermediate recess region 110, the electrode set by other positions can also be the electrode of the shortest other forms of length, such as shim-like electrode.
The present invention has significant advantage.This belt-shaped device is cheap, it is simple to use.Because there being elongated electrode position adjustment structure, this belt-shaped device is applicable to the testee of the various bodily form.The orientation of slit ensure that the exactly accurate anatomy location of electrode, and electrode retainer can avoid electrode to deviate the position of setting easily.Near the umbilicate region of chest, electrode length is slightly long and uses flexible member to provide pressure to electrode contact, makes the skin in electrode contact energy reliable contacts chest intermediate recess region.Most importantly, due to use gravity to fix this belt-shaped device, this makes the operation of fixing belt-shaped device become extremely easy, is particularly conducive to the occasion needing frequently to carry out ECG measurement for a long time.