CN204890809U - Medical treatment is with needle and supporting components of medical treatment with needle - Google Patents
Medical treatment is with needle and supporting components of medical treatment with needle Download PDFInfo
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- CN204890809U CN204890809U CN201520484224.4U CN201520484224U CN204890809U CN 204890809 U CN204890809 U CN 204890809U CN 201520484224 U CN201520484224 U CN 201520484224U CN 204890809 U CN204890809 U CN 204890809U
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Abstract
The utility model provides a can make between support main part and organism tissue the medical treatment is with needle and supporting components of medical treatment with needle that the sweat that produces well gasifies or flow out. The medical treatment possesses needle portion (20) with needle (100), and support (30) of supporting needle portion (20), support (30) have cardinal extremity fixed part (32) of the cardinal extremity portion of supporting needle portion (20), and the cover is supported in flexible support main part (34) of the needle portion (20) of cardinal extremity fixed part (32), support main part (34) have and are crooked shape and from cardinal extremity portion tip open -ended concave part (36) forward of needle portion (20), be formed with at concave part (36) and link up to air vent (40) of outer peripheral face (364) of this support main part from global (362) of this concave part, outside opening (44) intercommunication that the air vent will set up with outer peripheral face in the support main part in medial opening (42) of the global formation of concave part.
Description
Technical field
This utility model relates to the support unit of medical needle and medical needle.
Background technology
As the method for medical needle being fixed on bio-tissue, various method is proposed.
Such as in patent documentation 1, the open stabilizing device (hereinafter also referred to as prior art 1) for interventional instruments such as needle support.In prior art 1, possess pedestal, support unit, hold assembly and holding member.The skin that said base is attached to patient (hereinafter referred to as " subject ") is described in patent documentation 1.The problem of prior art 1 is to utilize support unit to support interventional instruments, and maintains the posture stable relative to subject by pedestal, realizes the stabilisation of the posture of interventional instruments thus.
More specifically, as prior art 1, exemplified with possessing general planar and be the stabilizing device (such as Fig. 2 of patent documentation 1) of microscler and flat pedestal in a direction.Said base removably can be installed on subject by binding agent, captivation or other suitable associated methods.In Fig. 8 of patent documentation 1, illustrate the state being supported with the interventional instruments such as pin at stabilizing device, this stabilising arrangement possesses the pedestal that a side and the predetermined surface of the skin (hereinafter referred to as " bio-tissue ") of subject are closely combined.
Patent documentation 1: Japanese Unexamined Patent Application Publication 2014-500066 publication
But prior art 1 has following problem.
Namely, when the state that the pedestal of prior art 1 is attached to the bio-tissue of subject continues, there is the situation producing sweat at this bio-tissue.Owing to not having the space that the sweat that produces between the pedestal that abuts with it at bio-tissue flows out or gasifies, therefore there is the situation that sweat is trapped in the position of perspiration for a long time.Thus, exist and give subject the worry of uncomfortable use sense, thus have problems at this point.
Medical needle roughly divide into the so-called medical needle for " bolus injection ", with the medical needle for " continue inject ".Above-mentioned bolus injection refers to and is injected in vivo disposable for the medicament being filled in syringe or interface (port) in Buried body.Above-mentioned lasting injection refer to as by pin portion by medicament through be injected in vivo after a while or interface and so on lasting injection, when using the stabilizing device in prior art 1 at the interventional instruments that can use constantly, the perspiration of particularly opposed with pedestal bio-tissue and cause the worry producing the problems referred to above larger.
Therefore, in medical needle, if the sweat produced between pedestal (hereinafter referred to as " support ") and bio-tissue can be made promptly to gasify or flow out, subject just can be given comfortable use sense, therefore more preferably.
Utility model content
This utility model completes in view of above-mentioned problem.Namely problem of the present utility model is to provide the sweat that can make to produce between support main body and bio-tissue to gasify well or the support unit of the medical needle that flows out and medical needle.
Medical needle of the present utility model possesses pin portion, and support the support in above-mentioned pin portion, the feature of above-mentioned medical needle is, above-mentioned support has the cardinal extremity fixed part of the base end part supporting above-mentioned pin portion, and cover the support main body being supported on the flexibility in the above-mentioned pin portion of above-mentioned cardinal extremity fixed part, above-mentioned support main body has in curved shape and from the above-mentioned base end part in above-mentioned pin portion towards the recess of leading section opening, and the passage had from the through outer peripheral face to this support main body of the side face of above-mentioned recess, side opening in the above-mentioned side face formation of above-mentioned recess is communicated with the outer openings that the above-mentioned outer peripheral face in above-mentioned support main body is arranged by above-mentioned passage.
The support unit of medical needle of the present utility model is for supporting the pin portion of medical needle, the feature of the support unit of above-mentioned medical needle is, there is the cardinal extremity fixed part of the base end part supporting above-mentioned pin portion and cover the support main body being supported on the flexibility in the above-mentioned pin portion of above-mentioned cardinal extremity fixed part, above-mentioned support main body has in curved shape and from the above-mentioned base end part in above-mentioned pin portion towards the recess of leading section opening, and has the passage from the through outer peripheral face to this support main body of the side face of above-mentioned recess.
Medical needle of the present utility model has passage in support main body.Thus, medical needle of the present utility model can make the sweat produced between support main body and bio-tissue gasify well via this passage or flow out.
In addition, the support unit of medical needle of the present utility model can form medical needle of the present utility model together with arbitrary needle part.
Accompanying drawing explanation
Fig. 1 is the figure of the structure of the medical needle represented involved by the first embodiment, Fig. 1 (a) is side view, and Fig. 1 (b) is top view, and Fig. 1 (c) is sectional view.
Fig. 2 is the sectional view for being described the using state of the first embodiment.
Fig. 3 is the figure of the structure of the medical needle represented involved by the second embodiment, Fig. 3 (a) is side view, and Fig. 3 (b) is top view.
Fig. 4 (a) is the key diagram of the outer openings of the first embodiment, and Fig. 4 (b) is the key diagram of the outer openings of the second embodiment.
Fig. 5 (a) is the top view of the example representing the mode of the present utility model possessing a passage, Fig. 5 (b) is the top view of the example representing the mode of the present utility model possessing two passages, and Fig. 5 (c) is the top view of the example representing the mode of the present utility model possessing three passages.
Description of reference numerals:
20... pin portion; 30... support; 32... cardinal extremity fixed part; 34... support main body; 36... recess; 38... recess opening; 40,41... passage; 42... interior side opening; 44... outer openings; 50... space; 60... slit; 100,200... medical needle; 300... inscribed circle; 320... wall thickness; 340... pipe portion; 362... side face; 364... outer peripheral face; 370... facade; 372... direction; 374... bight; 382... periphery; 384... wide diameter portion; 386... summit; 388... arc; 400... bio-tissue; 410... barrier film; 420... conduit; 430... wall; 440... barrier film interface; 450... demarcation line; 451... end; 500... adhesive tape.
Detailed description of the invention
Below, accompanying drawing is used to be described embodiment of the present utility model.In all of the figs, identical Reference numeral is marked to identical element, and suitably the repetitive description thereof will be omitted.
In addition, in the present embodiment, there is the situation that regulation upper and lower as illustrated is always described.But this is convenient to be briefly described the relativeness of element specify, when not limiting the manufacture implementing product of the present utility model, use time direction.
The various elements of the support unit of medical needle of the present utility model or medical needle without the need to existing independently of one another, and allow the part that multiple element is formed as parts, element is formed by multiple parts, certain element is a part for other elements and a part for certain element and other elements to repeat.
The term of term of the present utility model or the use when being described this utility model is unless otherwise defined, as given a definition.
When being described this utility model, the leading section in pin portion means the regulation region of the front end comprising the side being punctured to bio-tissue.The base end part in pin portion means the regulation region of the end (cardinal extremity) comprising the side contrary with above-mentioned front end.
In this manual, the vertical section of medical needle refers to the section of the axle center in the pin portion by being arranged at medical needle the long side direction cutting abreast with this pin portion.
First embodiment
Below, about medical needle of the present utility model, Fig. 1, Fig. 2 and Fig. 4 (a) structure to the medical needle 100 as the first embodiment of the present utility model is used to be described.
Fig. 1 (a) is the side view of the structure representing the medical needle 100 involved by the first embodiment observed from the hollow arrow of Fig. 1 (b).Fig. 1 (b) is the top view of medical needle 100.Fig. 1 (c) is the C-C line sectional view of the medical needle 100 shown in Fig. 1 (b).Fig. 2 is the sectional view for being described the action effect of the first embodiment.Fig. 4 (a) is the key diagram of the outer openings 44 of the first embodiment.
Medical needle 100 possesses the support 30 in pin portion 20 and needle support portion 20.
Support 30 has the cardinal extremity fixed part 32 of the base end part in needle support portion 20 and covers the support main body 34 being supported on the flexibility in the pin portion 20 of cardinal extremity fixed part 32.Support main body 34 has in curved shape and recess 36 (with reference to Fig. 1 (c)) from the base end part in pin portion 20 towards leading section opening.The passage 40 from the through outer peripheral face 364 to support main body 34 of side face 362 is formed at this recess 36.Side opening 42 in being formed at the side face 362 of recess 36 is communicated with the outer openings 44 that the outer peripheral face 364 in support main body 34 is arranged by passage 40.
By more than one passage 40 is arranged at support main body 34, medical needle 100 can make the sweat produced between support main body 34 and bio-tissue gasify well or flow out.
For the medical needle 100 involved by present embodiment, passage 40 is respectively arranged with two or more across cardinal extremity fixed part 32 in both sides, and is distributed along the circumference of support main body 34.
In the present embodiment, the side face 362 of recess 36 is equivalent to the inner peripheral surface of support main body 34.
Specifically, as shown in Fig. 1 (b), the medical needle 100 involved by present embodiment is respectively provided with five passages 40 across cardinal extremity fixed part 32 respectively in both sides.Ten passages 40 in same shape, and are distributed along the circumference of support main body 34.In addition, five passages 40 have been spaced in the side of cardinal extremity fixed part 32 with approximate equality.
The opening diameter of the circumference of a passage 40 is restricted to ten deciles of the size of not enough circumference.Namely the opening diameter of circumference is little fully relative to the size of circumference.Here, " opening diameter of circumference " of passage 40 means along the maximum gauge in the diameter of the determined passage 40 of the circumference of support main body 34.
According to above-mentioned medical needle 100, by arranging passage 40, can make the sweat that produces between support 30 and bio-tissue (bio-tissue 400 with reference to Fig. 2) from passage 40 laterally (via the side that passage 40 is contrary with bio-tissue) flow out, or to gasify.Thus, even if when medical needle of the present utility model is connected to bio-tissue for a long time, constantly, also sweat can be prevented to be stranded in the position of perspiration for a long time (namely, between the side face 362 of the recess 36 that bio-tissue abuts with this bio-tissue), thus subject can be given good use sense.
Passage 40 is respectively arranged with two or more across the cardinal extremity fixed part 32 of the base end part in locking pin portion 20 in both sides, and is distributed along the circumference of support main body 34.Namely, in the medical needle 100 of present embodiment, the circumference along support main body 34 has been distributed at least four passages 40.And, multiple and each aperture area is little fully relative to the gross area of support main body 34.
Like this, medical needle 100 has been distributed multiple passage 40.Therefore, medical needle 100, when the support main body 34 except passage 40 abuts with the skin of bio-tissue 400 (with reference to Fig. 2), suppresses the skin of bio-tissue 400 from passage 40 outward to bulging.In addition, meanwhile, the adhesive tape 500 (with reference to Fig. 2) suppressing to be pasted on the outer peripheral face of support main body 34 from passage 40 inward to entering in (bio-tissue 400 direction).
Its result, the medical needle 100 of using state suppresses bio-tissue 400 and adhesive tape 500 to be close at passage 40.In other words, passage 40 becomes the space 50 (with reference to Fig. 2) between bio-tissue 400 and the adhesive tape 500 covering passage 40.According to above-mentioned medical needle 100, the sweat produced between bio-tissue 400 and support main body 34 externally can flow out via space 50 (passage 40), or gasifies in space 50 and be released into outside.
Below, the details of medical needle 100 of the present utility model is described.
Support main body 34 covers the parts being supported on the flexibility at least partially in the pin portion 20 of cardinal extremity fixed part 32 in medical needle 100 in its natural state.Support main body 34 owing to having flexibility, thus can be suitably out of shape to follow the projecting shape of bio-tissue.The medical needle 100 of present embodiment is embedded with the skin of the subject of the armarium such as barrier film interface (septumport) 440 (with reference to Fig. 2) in an arbitrary point for making pin portion 20 puncture.In addition, pin portion 20 is also may be used for making to puncture the purposes of skin of the subject without armarium.Namely " bio-tissue " that mention, is in the present embodiment the established part of human body of the skin comprising the subject punctured for pin portion 20, and comprises the bio-tissue of the established part being embedded with armarium such as barrier film interface 440 grade and be not embedded with the bio-tissue of established part of armarium.In addition, medical needle 100 of the present utility model does not get rid of the purposes making pin portion 20 Direct perforantes armarium.
Support main body 34 is such as formed by tartans such as silicone rubber, polyurethane rubber or butadiene-styrene rubber.Thus, the support main body 34 of present embodiment not only has flexibility, and resistance to chemical reagents is also excellent.
In addition, support main body 34 can be the material of visible light permeability, or also can be visible ray not permeable material.When the material by visible light permeability makes support main body 34, can determine to visualization the position of bio-tissue, while observe the pin portion 20 after puncture from the outside of support main body 34.Also can implement paintedly arbitrarily to improve appearance design to support main body 34.Above-mentioned painted can be the painted of light transmission, also can be the painted of light-proofness, or also can be their combination.
Support main body 34 is in bending shape." the bending shape " that mention is such as shallow than the hemisphere shown in Fig. 1 (a) cup-shaped herein.As other examples of " bending shape ", though the diagram of omission, comprise the back-off bowl shape of semi-round ball planar and the longitudinal cutting profile of pipe of axially cutting hollow pipe.
As shown in Fig. 1 (c), the above-mentioned support main body 34 in bending shape has the recess 36 from the base end part in pin portion 20 towards leading section opening.Pin portion 20 is covered by recess 36 at least partially under the naturalness of medical needle 100.When the naturalness of the medical needle 100 of present embodiment is observed in side-looking, the front end in pin portion 20 is from the periphery 382 of the recess opening 38 of the opening as recess 36 outstanding (with reference to Fig. 1 (a), Fig. 1 (c)).Though the diagram of omission, as modified embodiment of the present embodiment, the front end comprising pin portion 20 be positioned at than periphery 382 more by base end side (cardinal extremity fixed part 32 side) position thus the mode in pin portion 20 cannot be observed when side-looking is observed.
Recess 36 is formed at the inner peripheral surface side of support main body 34.Above-mentioned inner peripheral surface side is support main body 34 side opposed with bio-tissue.In the inner peripheral surface side of the support main body 34 of flexibility, there is recess 36, thus easily make support main body 34 follow the projecting shape of bio-tissue.Thereby, it is possible to medical needle 100 is stably arranged at this bio-tissue in the mode of closing with the various curvature and matching form of bio-tissue.
The outer peripheral face 364 of the support main body 34 of present embodiment is formed as almost parallel with the side face 362 of recess 36.Support main body 34 except near cardinal extremity fixed part 32 is formed by roughly uniform wall thickness.The vicinity of cardinal extremity fixed part 32 can have the wall thickness identical with other regions, also can be formed as wall in order to the supporting in booster injection portion 20 thicker than other regions.But mode even for the wall unevenness of the support main body 34 except near cardinal extremity fixed part 32 does not remove from this utility model by above-mentioned explanation.
Cardinal extremity fixed part 32 is arranged at the top of support main body 34.Cardinal extremity fixed part 32 has the structure chimeric with the base end part in pin portion 20 or clamps the mechanism etc. of this base end part, thus is fixed the base end part in pin portion 20.The base end part in pin portion 20 also can suitably be adhesively fixed in cardinal extremity fixed part 32.
The base end part in pin portion 20 is fixed on the cardinal extremity fixed part 32 being arranged on support 30, and is supported to towards the recess opening 38 of recess 36 outstanding.Outstanding direction, pin portion 20 is not particularly limited, and suitably can adjust in the mode of closing with the matching form of bio-tissue.Here, pin portion 20 is such as supported to and gives prominence in the mode that the bearing of trend of the pars intermedia except the leading section except pin portion 20 is consistent with the normal direction of recess opening 38 towards recess opening 38.
Pin portion 20 has for throwing to the through hole of medicament to bio-tissue.The pin portion 20 of present embodiment is in the straight tube-like from cardinal extremity non-flexing to front end.Such as, though the diagram of omission, as the example in other pin portion 20, can enumerate Hans Huber pin (huberneedle; ヒ ユ mono-バ mono-Needles).Here, Hans Huber pin refers to the pin with the angle flexing specified, the almost parallel mode in the side of the pars intermedia in the opening surface of the front of above-mentioned through hole and pin portion 20 being formed with the leading section in pin portion 20 (needle point).
Next, passage 40 is described.Passage 40 in support main body 34 from the through outer peripheral face 364 to support main body 34 of the side face 362 of recess 36.
As shown in Fig. 1 (c), side opening 42 in the side face 362 being formed at recess 36 is communicated with the outer openings 44 of the outer peripheral face 364 being arranged at support main body 34 by passage 40.
Medical needle involved by present embodiment 100 has the shape on more than one summit at least outer openings 44 near cardinal extremity fixed part 32.
Namely, outer openings 44 more has summit 386 by the position of cardinal extremity fixed part 32 at the periphery 382 than recess opening 38.Preferred summit 386 is arranged at the position closest to cardinal extremity fixed part 32 of outer openings 44.
Outer openings 44 has summit 386, thus near summit 386 produce capillarity, and can by the sweat produced between bio-tissue and support main body 34 from interior side opening 42 laterally opening 44 guide.
In the present embodiment, multiple summit 386 is all configured near cardinal extremity fixed part 32, and circumferentially configures centered by cardinal extremity fixed part 32.According to above-mentioned configuration, medical needle 100 be arranged under the state that the subject between clavicle and rib faces up or taking one's seat or under upright state, injecting medicament from medical needle 100, especially expect.Namely this is because arbitrary summit 386 is all positioned at the top of outer openings 44 on weight direction, the sweat being directed to outer openings 44 by capillarity is accumulated in the lower area comparing the expanding outer openings in summit 386 44 along with deadweight.
In addition, when medicament injects in the uncertain situation of subject's posture, summit 386 also circumferentially configures centered by cardinal extremity fixed part 32, thus, medical needle 100 can not be selected relative to the installation site of subject, and make any or all of summit 386 effectively for the guiding of antiperspirant.
More specifically, the outer openings 44 of present embodiment is in so-called heart shape.As shown in Fig. 4 (a), the outer openings 44 as heart shape possesses the summit 386 of the interior angle had less than 180 °.As shown in Fig. 1 (b), the summit 386 being arranged at multiple outer openings 44 of support main body 34 is all positioned near cardinal extremity fixed part 32.
As shown in Fig. 4 (a), the outer openings 44 of present embodiment has the expanding wide diameter portion 384 of the periphery 382 of the recess opening 38 from cardinal extremity fixed part 32 towards the opening as recess 36.In other words, the size of the circumference of outer openings 44 has the region increased from cardinal extremity fixed part 32 towards periphery 382.
More specifically, such as, as shown in Fig. 1 (a), outer openings 44 more has wide diameter portion 384 by periphery 382 side of recess opening 38 than summit 386.According to above-mentioned structure, can be guided on summit 386 from the sucking-off of interior side opening 42 to the sweat of outer openings 44 to the direction of wide diameter portion 384 by capillarity.
Such as, as shown in Fig. 4 (a), the outer openings 44 with wide diameter portion 384 is the shape of the arc 388 opposed with summit 386 in having across wide diameter portion 384.The outer openings 44 of heart shape possesses two arcs 388, but the quantity of arc 388 is not limited thereto.Thereby, it is possible to the sweat in the direction being directed to wide diameter portion 384 from summit 386 to be lodged in the side of arc 388.Expect then to the flowing of the directed sweat of arc 388, the sweat produced between the bio-tissue near interior side opening 42 and support main body 34 to be guided to interior side opening 42 further from summit 386 to wide diameter portion 384, thus can collaborate with the flowing of the sweat of above-mentioned expectation.
As described above, the outer openings 44 of present embodiment is in heart shape.As the variation of outer openings 44, though can exemplify the passage 41 shown in Fig. 4 (b) the fan shape shown in outer openings 44, omit illustrated drop shape etc., be not limited thereto.
Medical needle 100 possesses the outer openings 44 being identified as the graphics shape of known shape as heart shape, fan shape or drop shape by majority in support main body 34, thus plays following effect.That is, above-mentioned medical needle 100 can give the impression using the medical personnel located of the subject of medical needle 100 and operation medical needle 100 comfortable.Punctured by medical needle 100 state of bio-tissue of long-time maintenance may give subject many mental burdens.In this case, medical needle 100 gives the comfortable impression of subject can make above-mentioned burden alleviate, thus very effective.
Wherein, the heart shape shown in Fig. 4 (a), the fan shape shown in Fig. 4 (b) has summit 386, wide diameter portion 384 and arc 388, thus can guide the flowing of the sweat of above-mentioned expectation, thus more expects.Though the diagram of omission, drop shape is also the same.
In this utility model, heart shape refers to as symbolically representing the labelling of heart and the shape be known.Also mean in the red heart of four patterns as playing card, spade, square and Flos Mume and the shape of this red heart be known.More specifically, it is the figure possessing the first summit, the second summit, two arcs and line segment, wherein, above-mentioned first summit has the interior angle less than 180 °, above-mentioned second summit and the interior angle that have more than 180 ° opposed with above-mentioned first summit, above-mentioned two arcs clip above-mentioned second summit and arrange, and above-mentioned two arcs link with above-mentioned first summit and above-mentioned second summit by above-mentioned line segment.Above-mentioned line segment comprises straight line and sweep.Heart shape comprises the mode of mirror symmetry mode and non-specular surface symmetry centered by the straight line linking above-mentioned two summits.
In addition, in this utility model, fan shape means by the summit of the interior angle had less than 180 °, opposed with this summit arc and the shape that formed by two straight lines that the two ends of above-mentioned arc and above-mentioned summit link respectively.
In addition, in this utility model, drop shape is made up of the summit of the interior angle had less than 180 °, opposed with this summit arc and two sweeps being linked respectively in the two ends of above-mentioned arc and above-mentioned summit.Above-mentioned drop shape comprises so-called droplet profile and tear-drop shape.
The shape of multiple outer openings 44 of present embodiment is all in identical heart shape.But medical needle 100 is not limited thereto, the shape of multiple outer openings 44 also can be any plural combination of heart shape, fan shape, drop shape or other arbitrary shapes.
As understood according to Fig. 1 (b), the outer openings 44 of the medical needle 100 involved by present embodiment and interior side opening 42 are in roughly the same shape.More specifically, such as, interior side opening 42 also has summit 386, wide diameter portion 384 and arc 388 identically with outer openings 44.Thereby, it is possible to carry out the guiding of the flowing of the sweat of above-mentioned expectation more well.
Outer openings 44 and interior side opening 42 can be same shape, also can have the shape of similar figures.
Such as, as shown in Fig. 1 (b), the opening direction of passage 40 is directions roughly the same with the bearing of trend in pin portion 20.
In other words, the opening direction of passage 40 compares the wall thickness direction of the support main body 34 of the vicinity of at least passage 40, and the bearing of trend along pin portion 20 extends, such as consistent with the bearing of trend in pin portion 20.The passage 40 possessing above-mentioned opening direction is arranged at least one in multiple passages 40 of support main body 34, and preferably above-mentioned multiple passage 40 is whole.
Owing to having above-mentioned structure, thus the opening direction of passage 40 is different from the normal direction of the outer peripheral face 364 of the support main body 34 in the region being formed with this passage 40.Therefore, under the using state of medical needle 100, the normal direction being pasted on the adhesive tape 500 of the outer peripheral face 364 of support main body 34 is different from the opening direction of passage 40.Thereby, it is possible to make the adhesive tape 500 of covering passage 40 (outer openings 44) be difficult to enter the inside of passage 40, thus contribute to making passage 40 play function as space 50 in a state of use.More specifically, as shown in Figure 2, even if when pressing adhesive tape 500 from outside towards the direction contrary with the normal direction of adhesive tape 500 and direction 372, adhesive tape 500 also at least can not enter the bight 374 of passage 40.The inside of bight 374 passage 40 in fig. 2 represents virtually with dotted line.
Here, " opening direction of passage 40 " means the bearing of trend of the central shaft of the passage 40 observed in the vertical section of medical needle 100.
Due to the opening direction of passage 40 is set to roughly the same direction with the bearing of trend in pin portion 20, easily prevent adhesive tape 500 from entering passage 40 thus.In order to obtain this preventing effectiveness more significantly, optimizing breathing hole 40 is arranged at than the position of cardinal extremity fixed part 32 closer to periphery 382.Specifically, the position of centre of gravity of passage 40 preferably compares cardinal extremity fixed part 32 closer to periphery 382.
As shown in Fig. 1 (c), the bearing of trend dividing the bearing of trend of wall 430 of passage 40 and pin portion 20 is almost parallel.In order to arrange above-mentioned passage 40, such as, when by injection mo(u)lding molding support main body 34, pre-set the protuberance guaranteeing passage 40 at the mould of support main body 34.Then, after resin component is shaped to desired shape, the installation direction along the pin portion 20 of predetermined set extracts above-mentioned mould out, thus can the passage 40 that extends along the direction roughly the same with the bearing of trend in pin portion 20 of molding.
In the present embodiment, the size of passage 40 is not particularly limited in the scope meeting rated condition.Such as, pin portion 20 is being punctured bio-tissue and state medical needle 100 being arranged at bio-tissue (namely, the using state of medical needle 100) under, as the preferred mode for making passage 40 become space 50, following content can be enumerated.In addition, the rated condition herein mentioned refers to that passage 40 is respectively arranged with two or more across cardinal extremity fixed part 32 in both sides, and is distributed along the circumference of support main body 34.
Namely, in medical needle 100, the diameter of the inscribed circle 300 (with reference to Fig. 4 (a)) of passage 40 can be set to less than three times of the wall thickness of support main body 34.Here, for the wall thickness of support main body 34, refer to this wall thickness when the uniform wall thickness of support main body 34, refer to wall thickness (wall thickness 320 such as shown in Fig. 1 (a)) determined near passage 40 when the wall unevenness of support main body 34 is even.
According to above-mentioned structure, under the using state of medical needle 100, passage 40 is difficult to be blocked by bio-tissue or bio-tissue and adhesive tape 500, in fact, can form space 50 between interior side opening 42 and outer openings 44.Here, " in fact " refers to the meaning of the degree of " when supposing the preferable range of the wall thickness of support main body 34 ".In the present embodiment, the scope of the wall thickness of support main body 34 is not defined.Such as from this viewpoint of bearing performance meeting support main body 34, the lower limit of above-mentioned wall thickness is preferably more than 0.5mm, is more preferably more than 1mm.In addition, from reducing this viewpoint of burden being set up the subject of medical needle 100, such as the upper limit of above-mentioned wall thickness is preferably below 4mm, is more preferably below 3mm, more preferably below 2mm.
The support main body 34 of present embodiment is provided with slit 60.Slit 60 extends from the periphery 382 of the recess opening 38 of the opening as recess 36 towards cardinal extremity fixed part 32.As shown in Fig. 1 (b), medical needle 100 than cardinal extremity fixed part 32 side from slit 60 end 451 around circumferential hoop around and the demarcation line 450 that is prescribed more by the position of recess opening 38 side, include passage 40.
Slit 60 can make the recess opening 38 of support main body 34 expand." expansion " that mention refers to that the A/F in certain direction of the recess opening 38 of support main body 34 expands herein.Thus, such as, the using method of following such medical needle 100 can be realized.Namely, make pin portion 20 puncture bio-tissue time, first, expanding under the state that recess opening 38 makes reversion inside and outside support main body 34, with slit 60 for support main body 34 folding is two foldings by folding line.Thus, the leading section comprising needle point in pin portion 20 is exposed from support main body 34 and can observe it from other directions.Next, lateral dominance finger keeps by folding is that pin portion 20 to puncture bio-tissue by the needle point in the support main body 34 limit visualization pin portion 20 of two foldings.Then, the finger keeping support main body 34 is unclamped, thus support main body 34 flexibly inversion recovery and again reversing inside and outside making.Thus, the recess 36 of support main body 34 becomes bowl-shape and covers bio-tissue.Like this, owing to there is slit 60 in support main body 34, thus easily can expand the recess opening 38 of this support main body 34, and then can easily make support main body 34 reverse.
The slit 60 of present embodiment is formed from the periphery 382 of the recess opening 38 of support main body 34 towards cardinal extremity fixed part 32 throughout the length over half of the girth of support main body 34.Thus, easily make to reverse inside and outside support main body 34.In addition, " girth " that mention refers to the length on the flexure plane under the naturalness of support main body 34 herein.
Position in the end 451 than slit 60 more by central side does not have passage 40, thus utilize finger hold relative to naturalness reversion after support main body 34 and when pin portion 20 is punctured, can keep the hardness of the core of support main body 34, thus gripping state is more stable.
As shown in Fig. 1 (b), such as support main body 34 has across opposed a pair slit 60 of cardinal extremity fixed part 32.Multiple passage 40 is configured with respectively in both sides across the line segment (not shown) linked by this pair slit 60.Specifically, in the present embodiment, the mode that each five passages 40 are circumferentially arranged across this line segment is shown.As mentioned above, in the medical needle 100 involved by present embodiment, passage 40 is balancedly arranged across the line segment a pair slit 60 linked.Thus, as mentioned above, when puncturing, support main body 34 is reversed and with slit 60 for support main body 34 folding is two foldings by folding line, and support main body 34 is reversed again and inversion recovery time, the balance of the action of the support main body 34 of the both sides of a pair slit 60 is good.
In addition, the passage 40 of present embodiment, in non-circular, roughly symmetrically configures centered by cardinal extremity fixed part 32.More specifically, such as, passage 40 is as non-circular heart shape.As understood from Fig. 1 (b), such as, passage 40 except be provided with the position of slit 60, roughly symmetrically configures with roughly 30 ° of spacing centered by cardinal extremity fixed part 32.Like this, passage 40 balancedly can be configured at support main body 34, thus, when medical needle 100 is arranged at bio-tissue, in the viewpoint of position at random selecting passage 40, not select setting direction.
The pipe portion 340 (with reference to Fig. 1 (b)) be communicated with pin portion 20 is connected with in support main body 34.Pipe portion 340 extends along the bearing of trend across opposed a pair slit 60 of cardinal extremity fixed part 32.With slit 60 for folding line be two foldings by support main body 34 folding time, the support main body 34 after reversion can be utilized to clamp a part and the cardinal extremity fixed part 32 in pipe portion 340.As shown in Fig. 1 (a), the top of support main body 34 is in its natural state formed with a mutually opposing opposite 370 highlightedly above paper, between this facade 370, be provided with cardinal extremity fixed part 32.The cardinal extremity fixed part 32 of present embodiment also plays function as the adapter making pipe portion 340 and pin portion 20 be interconnected.In addition, replace present embodiment, cardinal extremity fixed part 32 also can be for making the chimeric hole being formed at support main body 34 in pin portion 20 or pipe portion 340, groove.
The size of each structure of medical needle 100 is not particularly limited.Such as, the opening diameter of recess opening 38 is more than 30mm and below 50mm (such as before and after 37mm).The wall thickness of the support main body 34 of the vicinity of passage 40 is more than 0.5mm and below 4mm (such as 1.5mm).In addition, the opening diameter of the passage 40 in heart shape is more than 2mm and below 7mm (such as 4.5mm).The width dimensions of slit 60 is more than 1mm and below 5mm (such as 3mm).In addition, for benchmark when the scope of the opening diameter of above-mentioned passage 40 is to be distributed ten passages 40 along the circumference of support main body 34, suitably can design according to the quantity of the size of support main body 34 and passage 40.In addition, the diameter of the inscribed circle 300 of passage 40 also suitably can design in the mode matched with the wall thickness of above-mentioned support main body 34, from less than three times these viewpoints that this diameter is this wall thickness, the diameter of the inscribed circle 300 of passage 40 is more than 1mm and below 12mm (such as before and after 3.5mm).
Next, Fig. 2 is used to be described the example of medical needle 100 and action effect.Fig. 2 is the sectional view for being described the using state of present embodiment.As shown in Figure 2, bio-tissue 400 subcutaneous of subject, such as, barrier film interface 440 has been imbedded.Barrier film interface 440 pairs of barrier films 410 carry out supporting and fixing, and connect for conduit 420.The medicament injected from the pin portion 20 of through puncture barrier film 410 is transmitted in the body of subject by conduit 420.In addition, barrier film 410 can be punctured by pin 20, such as, be made up of the soft resin of silicone and so on.Barrier film 410 is parts that medicinal liquid accumulation place (omitting diagram) possessed the inside of barrier film interface 440 separates with the outside of barrier film interface 440.Such as, the front end such as through barrier film 410 in pin portion 20, and arrive accumulation place of above-mentioned medicinal liquid.
As shown in Figure 2, in a state of use, puncture bio-tissue 400 in the pin portion 20 being arranged at medical needle 100.The base end part in pin portion 20 is supported by cardinal extremity fixed part 32 as described above, and the support main body 34 of medical needle 100 covers bio-tissue 400 and abuts with it, thus can support medical needle 100.In addition, the bio-tissue 400 of the through protuberance in front end in pin portion 20, and be connected with barrier film interface 440.
Medical needle 100 to be stably fixed on the mode of bio-tissue 400, throughout support main body 34 outer peripheral face 364 and bio-tissue 400 be pasted with adhesive tape 500 outwardly.Adhesive tape 500 covers the outer openings 44 of passage 40.
The passage 40 of present embodiment is respectively arranged with two or more across cardinal extremity fixed part 32 in both sides as described above, and is distributed along the circumference of support main body 34.Therefore, the inner peripheral surface (side face 362 of recess 36) of support main body 34 is at least with roughly crosswise or abut with bio-tissue 400 with how netted further.Thus, bio-tissue 400 by side face 362 from outer direction inward to pressing, the epidermis of bio-tissue 400 can be suppressed from the bulging of passage 40 outward direction.In addition, the adhesive tape 500 of the outer peripheral face 364 being pasted on support main body 34 can be suppressed to enter interior direction (bio-tissue 400 direction) from passage 40.
Its result, can suppress bio-tissue 400 and adhesive tape 500 to be close at passage 40, and form space 50 between bio-tissue 400 and the adhesive tape 500 covering passage 40.
If the state for extended periods that medical needle 100 is arranged at bio-tissue 400 continues, then there is the situation producing sweat at the bio-tissue 400 opposed with support main body 34.This sweat can accumulate in the passage 40 of Special composition 50, and is gasified gradually by the existence in space 50.In order to make the sweat of the internal gasifier in space 50 externally discharge well, such as, also can use the adhesive tape 500 be made up of the parts with aeration.
According to the present embodiment, like this, the sweat produced at bio-tissue 400 can be prevented to be trapped in for a long time between support main body 34 and bio-tissue 400, thus subject can be given comfortable use sense.
Second embodiment
Below, about medical needle of the present utility model, Fig. 3 and Fig. 4 (b) structure to the medical needle 200 as the second embodiment of the present utility model is used to be described.
Fig. 3 (a) is the side view of the structure representing the medical needle 200 involved by the second embodiment observed from the hollow arrow direction of Fig. 3 (b).Fig. 3 (b) is the top view of medical needle 200.Fig. 4 (b) is the key diagram of the passage 41 of the second embodiment.
Medical needle 200 except the shape of passage 41 and forming position different from the medical needle 100 involved by the first embodiment except, be configured to identical with medical needle 100.
As shown in Fig. 3 (a) and Fig. 3 (b), passage 41 is respectively provided with two across cardinal extremity fixed part 32 respectively in both sides, and is distributed along the circumference of support main body 34.As shown in Fig. 3 (b), when top view, the wall portion of support main body 34 in being present between four passages 41 roughly crosswise.Therefore, the inner peripheral surface of support main body 34 can abut with bio-tissue 400 with roughly crosswise.
Passage 41 is in fan shape.The outer openings 44 of passage 41 has the expanding wide diameter portion of the periphery 382 of the recess opening 38 from cardinal extremity fixed part 32 towards the opening as recess 36 384 (with reference to Fig. 4 (b)).Above-mentioned outer openings 44 in have one across wide diameter portion 384 shape of the arc 388 opposed with summit 386.Fan shape can be called the graphics shape being identified as known shape as described above by majority.
3rd embodiment
Next, the support unit of medical needle of the present utility model is described.The support unit of medical needle of the present utility model is identical with structure when only taking out support 30 from above-mentioned medical needle of the present utility model (such as medical needle 100).
That is, the support unit of medical needle of the present utility model is the parts in the pin portion 20 for supporting medical needle 100.This support unit has the cardinal extremity fixed part 32 of the base end part in needle support portion 20 and covers the support main body 34 being supported on the flexibility in the pin portion 20 of cardinal extremity fixed part 32.Support main body 34 has in curved shape and from the base end part in pin portion 20 towards the recess 36 of leading section opening.The passage 40 from the through outer peripheral face 364 to support main body 34 of side face 362 is formed at this recess 36.Passage 40 is respectively arranged with two or more across cardinal extremity fixed part 32 in both sides, and is distributed along the circumference of support main body 34.
The support unit of medical needle of the present utility model can become the object independently carrying out business transaction.This support unit combinationally uses with the pin portion for medical needle usually, thus this pin portion stably can be supported on bio-tissue 400.In addition, the excellent action effect brought by medical needle 100 of the present utility model can be enjoyed.
About the support unit of medical needle of the present utility model, suitably with reference to the explanation of the support 30 about above-mentioned medical needle 100 or medical needle 200, therefore detailed description can be omitted here.
Above, embodiment of the present utility model is illustrated.This utility model is not limited to above-mentioned embodiment, and comprises the mode such as various distortion, improvement that can realize in the scope of the purpose of this utility model.
Such as, the support unit of medical needle of the present utility model or medical needle comprises following mode.
The such as example of other modes that this utility model comprises shown in Fig. 5 (a) ~ Fig. 5 (c).Fig. 5 (a) is the top view of the example representing the mode of the present utility model possessing a passage 40.Fig. 5 (b) is the top view of the example representing the mode of the present utility model possessing two passages 40.Fig. 5 (c) is the top view of the example representing the mode of the present utility model possessing three passages 40.Medical needle 100 shown in Fig. 5 (a) ~ Fig. 5 (c), relative to the medical needle 100 of the first embodiment, except changing the quantity of set passage 40, allocation position and size, possesses identical structure.
That is, the medical needle 100 as shown in Fig. 5 (a), this utility model comprises the mode being provided with a passage 40.By more than one passage 40 is arranged at support main body 34, medical needle 100 can make the sweat produced between support main body 34 and bio-tissue gasify well or flow out.
In addition, the medical needle 100 as shown in Fig. 5 (b), this utility model comprises the mode being provided with two passages.In Fig. 5 (b), show the mode being respectively provided with a passage 40 across cardinal extremity fixed part 32 in both sides.In other words, across cardinal extremity fixed part 32, be configured with multiple (being specifically two) passage 40 with the roughly 180 opposed positions of degree.Like this, multiple passage 40 is formed at the position left, gasification or the outflow of above-mentioned sweat can be carried out thus efficiently.
But, this utility model the not removed situation plural passage 40 being configured at position beyond the opposed position of cardinal extremity fixed part 32.By the increasing number of passage 40, the gasification of above-mentioned antiperspirant or the effect of outflow can be made to increase.Therefore, plural passage 40 also can be formed randomly and be configured at support main body 34.
Such as, medical needle 100 as shown in Fig. 5 (c), this utility model possesses three passages 40, comprise as under type: when top view, the region of the side in two regions divided by the line segment (omitting diagram) support main body 34 be divided into two by cardinal extremity fixed part 32 possesses a passage 40, possesses two passages 40 in the region of the opposing party.Like this, preferably the passage 40 of more than three is distributed wittingly in support main body 34 centered by cardinal extremity fixed part 32.
From the above-mentioned viewpoint be distributed, the mode that plural passage 40 is distributed along the circumference of support main body 34 as shown in Fig. 5 (c) is enumerated as a preferred mode of the present utility model.Particularly as shown in Fig. 5 (c), preferably plural passage 40 is distributed with roughly equal interval mutually.Thus, no matter the setting angle of medical needle 100, the sweat produced from bio-tissue all can be made to flow out efficiently from any or all passages 40 or gasify.
Above-mentioned embodiment comprises following technological thought.
(1) medical needle, possess pin portion and support the support in above-mentioned pin portion, the feature of above-mentioned medical needle is,
Above-mentioned support has the cardinal extremity fixed part of the base end part supporting above-mentioned pin portion and covers the support main body being supported on the flexibility in the above-mentioned pin portion of above-mentioned cardinal extremity fixed part,
Above-mentioned support main body has in curved shape and from the above-mentioned base end part in above-mentioned pin portion towards the recess of leading section opening,
The passage from the through outer peripheral face to this support main body of the side face of above-mentioned recess is formed at above-mentioned recess,
Side opening in the above-mentioned side face formation of above-mentioned recess is communicated with the outer openings that the above-mentioned outer peripheral face in above-mentioned support main body is arranged by above-mentioned passage.
(2) in the medical needle described in above-mentioned (1), above-mentioned passage is provided with two or more.
(3) in the medical needle described in above-mentioned (2), above-mentioned passage is distributed along the circumference of above-mentioned support main body.
(4) in the medical needle described in above-mentioned (2) or (3), above-mentioned passage is respectively arranged with two or more across above-mentioned cardinal extremity fixed part in both sides.
(5) in medical needle described any one of above-mentioned (1) ~ (4), at least above-mentioned outer openings has more than one summit near above-mentioned cardinal extremity fixed part.
(6) in the medical needle described in above-mentioned (5), above-mentioned outer openings has the expanding wide diameter portion of the periphery of the recess opening from above-mentioned cardinal extremity fixed part towards the opening as above-mentioned recess.
(7) in the medical needle described in above-mentioned (6), above-mentioned outer openings is in the shape had across the above-mentioned wide diameter portion arc opposed with above-mentioned summit.
(8) in medical needle described any one of above-mentioned (1) ~ (7), above-mentioned outer openings is heart shape, fan shape or drop shape.
(9) in medical needle described any one of above-mentioned (1) ~ (8), above-mentioned outer openings and above-mentioned interior side opening are roughly the same shape.
(10) in medical needle described any one of above-mentioned (1) ~ (9), the opening direction of above-mentioned passage is the direction roughly the same with the bearing of trend in above-mentioned pin portion.
(11) in medical needle described any one of above-mentioned (1) ~ (10), the inscribe diameter of a circle of above-mentioned passage is less than three times of the wall thickness of above-mentioned support main body.
(12) in medical needle described any one of above-mentioned (1) ~ (11), above-mentioned support main body has the slit extended towards above-mentioned cardinal extremity fixed part from the periphery of the recess opening of the opening as above-mentioned recess,
Than the above-mentioned cardinal extremity fixed part side from above-mentioned slit end around circumferential hoop around and the demarcation line that is prescribed more by the position of above-mentioned recess open side, include above-mentioned passage.
(13) in the medical needle described in above-mentioned (12), above-mentioned support main body has across a pair opposed above-mentioned slit of above-mentioned cardinal extremity fixed part,
Multiple above-mentioned passage is configured with respectively in both sides across the line segment linked by above-mentioned a pair above-mentioned slit.
(14) in medical needle described any one of above-mentioned (1) ~ (13), above-mentioned passage is non-circular, roughly symmetrically configures centered by above-mentioned cardinal extremity fixed part.
(15) support unit for medical needle, for supporting the pin portion of medical needle, the feature of the support unit of above-mentioned medical needle is,
There is the cardinal extremity fixed part of the base end part supporting above-mentioned pin portion and cover the support main body being supported on the flexibility in the above-mentioned pin portion of above-mentioned cardinal extremity fixed part,
Above-mentioned support main body has in curved shape and from the above-mentioned base end part in above-mentioned pin portion towards the recess of leading section opening,
The passage from the through outer peripheral face to this support main body of the side face of above-mentioned recess is formed at above-mentioned recess.
(16) in the support unit of the medical needle described in above-mentioned (15), above-mentioned passage is provided with two or more.
(17) in the support unit of the medical needle described in above-mentioned (16), above-mentioned passage is distributed along the circumference of above-mentioned support main body.
(18) in the support unit of the medical needle described in above-mentioned (16) or (17), above-mentioned passage is respectively arranged with two or more across above-mentioned cardinal extremity fixed part in both sides.
Claims (18)
1. a medical needle, possesses pin portion and supports the support in described pin portion,
The feature of described medical needle is,
Described support has the cardinal extremity fixed part of the base end part supporting described pin portion and covers the support main body being supported on the flexibility in the described pin portion of described cardinal extremity fixed part,
Described support main body has in curved shape and from the described base end part in described pin portion towards the recess of leading section opening,
The passage from the through outer peripheral face to this support main body of the side face of described recess is formed at described recess,
Side opening in the described side face formation of described recess is communicated with the outer openings that the described outer peripheral face in described support main body is arranged by described passage.
2. medical needle according to claim 1, is characterized in that,
Described passage is provided with two or more.
3. medical needle according to claim 2, is characterized in that,
Described passage is distributed along the circumference of described support main body.
4. the medical needle according to claim 2 or 3, is characterized in that,
Described passage is respectively arranged with two or more across described cardinal extremity fixed part in both sides.
5. the medical needle according to any one of claims 1 to 3, is characterized in that,
At least described outer openings has more than one summit near described cardinal extremity fixed part.
6. medical needle according to claim 5, is characterized in that,
Described outer openings has the expanding wide diameter portion of the periphery of the recess opening from described cardinal extremity fixed part towards the opening as described recess.
7. medical needle according to claim 6, is characterized in that,
Described outer openings is in the shape had across the described wide diameter portion arc opposed with described summit.
8. the medical needle according to any one of claims 1 to 3, is characterized in that,
Described outer openings is heart shape, fan shape or drop shape.
9. the medical needle according to any one of claims 1 to 3, is characterized in that,
Described outer openings and described interior side opening are roughly the same shape.
10. the medical needle according to any one of claims 1 to 3, is characterized in that,
The opening direction of described passage is the direction roughly the same with the bearing of trend in described pin portion.
11. medical needles according to any one of claims 1 to 3, is characterized in that,
The inscribe diameter of a circle of described passage is less than three times of the wall thickness of described support main body.
12. medical needles according to any one of claims 1 to 3, is characterized in that,
Described support main body has the slit extended towards described cardinal extremity fixed part from the periphery of the recess opening of the opening as described recess,
Than the described cardinal extremity fixed part side from described slit end around circumferential hoop around and the demarcation line that is prescribed more by the position of described recess open side, include described passage.
13. medical needles according to claim 12, is characterized in that,
Described support main body has across slit described in opposed a pair of described cardinal extremity fixed part,
Multiple described passage is configured with respectively in both sides across the line segment linked by slit described in described a pair.
14. medical needles according to any one of claims 1 to 3, is characterized in that,
Described passage is non-circular, roughly symmetrically configures centered by described cardinal extremity fixed part.
The support unit of 15. 1 kinds of medical needles, for supporting the pin portion of medical needle,
The feature of the support unit of described medical needle is,
There is the cardinal extremity fixed part of the base end part supporting described pin portion and cover the support main body being supported on the flexibility in the described pin portion of described cardinal extremity fixed part,
Described support main body has in curved shape and from the described base end part in described pin portion towards the recess of leading section opening,
The passage from the through outer peripheral face to this support main body of the side face of described recess is formed at described recess.
The support unit of 16. medical needles according to claim 15, is characterized in that,
Described passage is provided with two or more.
The support unit of 17. medical needles according to claim 16, is characterized in that,
Described passage is distributed along the circumference of described support main body.
The support unit of 18. medical needles according to claim 16 or 17, is characterized in that,
Described passage is respectively arranged with two or more across described cardinal extremity fixed part in both sides.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-141456 | 2014-07-09 | ||
| JP2014141456A JP6409376B2 (en) | 2014-07-09 | 2014-07-09 | Medical needle and support member for medical needle |
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| Publication Number | Publication Date |
|---|---|
| CN204890809U true CN204890809U (en) | 2015-12-23 |
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| CN (1) | CN204890809U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112955098A (en) * | 2018-10-25 | 2021-06-11 | 尾崎重之 | Valve tip size measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3003926B2 (en) * | 1997-04-04 | 2000-01-31 | 株式会社アシスト | Taping tape |
| US20100004597A1 (en) * | 2006-08-02 | 2010-01-07 | Unomedical A/S | Insertion Device |
| JP5793915B2 (en) * | 2011-03-31 | 2015-10-14 | 住友ベークライト株式会社 | Medical needle and medical needle support member |
| CA3043584C (en) * | 2011-12-07 | 2021-02-16 | Becton, Dickinson And Company | Infusion device with releasable fluid connector |
-
2014
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112955098A (en) * | 2018-10-25 | 2021-06-11 | 尾崎重之 | Valve tip size measuring device |
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| JP2016016162A (en) | 2016-02-01 |
| JP6409376B2 (en) | 2018-10-24 |
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