TWM486457U - Retaining needle insertion specified hole forming pin - Google Patents
Retaining needle insertion specified hole forming pin Download PDFInfo
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- TWM486457U TWM486457U TW103203833U TW103203833U TWM486457U TW M486457 U TWM486457 U TW M486457U TW 103203833 U TW103203833 U TW 103203833U TW 103203833 U TW103203833 U TW 103203833U TW M486457 U TWM486457 U TW M486457U
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- Taiwan
- Prior art keywords
- indwelling needle
- resin
- hole forming
- forming pin
- blood vessel
- Prior art date
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- 238000003780 insertion Methods 0.000 title claims description 57
- 230000037431 insertion Effects 0.000 title claims description 57
- 210000004204 blood vessel Anatomy 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- -1 polypropylene Polymers 0.000 claims description 11
- 229920001225 polyester resin Polymers 0.000 claims description 5
- 239000004645 polyester resin Substances 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- 229920005672 polyolefin resin Polymers 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 150000002923 oximes Chemical class 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- LNOLJFCCYQZFBQ-BUHFOSPRSA-N (ne)-n-[(4-nitrophenyl)-phenylmethylidene]hydroxylamine Chemical compound C=1C=C([N+]([O-])=O)C=CC=1C(=N/O)/C1=CC=CC=C1 LNOLJFCCYQZFBQ-BUHFOSPRSA-N 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 5
- 239000002253 acid Substances 0.000 claims 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 238000000502 dialysis Methods 0.000 description 9
- 238000001631 haemodialysis Methods 0.000 description 6
- 230000000322 hemodialysis Effects 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- IKCQWKJZLSDDSS-UHFFFAOYSA-N 2-formyloxyethyl formate Chemical compound O=COCCOC=O IKCQWKJZLSDDSS-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 241000239226 Scorpiones Species 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002785 anti-thrombosis Effects 0.000 description 1
- 239000003146 anticoagulant agent Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 231100000507 endocrine disrupting Toxicity 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002098 polyfluorene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- External Artificial Organs (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
本新型係關於一種用以形成自人體之皮膚表面至血管壁為止或者其最近處為止之孔之銷。The present invention relates to a pin for forming a hole from the surface of the skin of a human body to the wall of the blood vessel or the nearest portion thereof.
於家中進行血液透析之情形趨於變多，在日本亦正在研究該家中血液透析。對於家中血液透析而言，由於醫生訪問各家庭較為困難，故而患者必須自己穿刺留置針。例如，作為習知以來所使用之留置針，可列舉將人體固定用之翼安裝於金屬製之針而成之翼狀針，或由金屬製內針與塑膠製套管(cannula)構成之留置針。然而，血液透析患者必須以每週2~3次之進度進行血液透析，每次穿刺留置針對透析患者而言相當痛苦。The situation of hemodialysis in the home tends to increase, and hemodialysis in the family is also being studied in Japan. For hemodialysis at home, it is difficult for the doctor to visit each family, so the patient must puncture the indwelling needle himself. For example, as an indwelling needle used in the prior art, a wing-shaped needle in which a wing for fixing a human body is attached to a metal needle, or a cannula composed of a metal inner needle and a plastic cannula can be cited. needle. However, hemodialysis patients must perform hemodialysis at a rate of 2 to 3 times per week. Each puncture placement is quite painful for dialysis patients.
因此，存在如下技術思想：為了使該穿刺痛抑制為最小限度，預先於皮膚上形成自皮膚表面至血管成為留置針插入通路之孔(稱為鈕孔)(參照專利文獻1)。Therefore, in order to minimize the puncture pain, a hole (referred to as a buttonhole) from the skin surface to the blood vessel to be an indwelling needle insertion path is formed in advance on the skin (refer to Patent Document 1).
[專利文獻1]日本實開昭64-28656號公報[Patent Document 1] Japanese Unexamined Gazette No. 64-28656
本新型之課題在於提供實現上述之鈕孔技術之留置針插入用孔形成件，且目的在於提供可減輕習知之複雜之留置作業之醫療從業人員之負擔、且可穩定地形成鈕孔之留置針插入用孔形成件。An object of the present invention is to provide a hole forming insert for indwelling needles which realizes the above-described buttonhole technique, and an object of the present invention is to provide a needle for stably forming a buttonhole, which can reduce the burden on a medical practitioner who has a complicated indwelling operation. Insert the hole forming member.
為了解決上述課題，本新型之留置針插入用孔形成銷係具有用以形成用以將留置針自皮膚表面至血管留置之留置針插入用孔之中、自皮膚表面至血管壁為止或血管壁之最近處為止之該孔之構造之銷，且為如下構成：具備利用以ISO2039-2規定之洛氏硬度為R60~R120之範圍內之樹脂形成之柱狀之插入部，及設置於該插入部之基端且具有較該插入部大之尺寸之插入停止部，上述插入部之前端之尺寸係以於到達血管壁或血管壁之最近處之部分時，不到達血管內之狀態下留置之方式而形成，於上述插入停止部，設置有至少一個作為操作時之保持部之凹部。In order to solve the above problems, the indwelling needle insertion hole forming pin of the present invention has a hole for inserting an indwelling needle for indwelling the indwelling needle from the skin surface to the blood vessel, from the skin surface to the blood vessel wall or the blood vessel wall. The pin of the structure of the hole up to the nearest point is configured to include a columnar insertion portion formed of a resin having a Rockwell hardness of R60 to R120 defined by ISO 2039-2, and is provided in the insertion An insertion stop portion having a larger size than the insertion portion, wherein the front end of the insertion portion is sized to be in a state where it does not reach the blood vessel wall when it reaches the nearest portion of the blood vessel wall or the blood vessel wall In the above-described insertion stopping portion, at least one concave portion as a holding portion at the time of operation is provided.
於上述構成之留置針插入用孔形成銷中，亦可構成為：上述插入部由選自聚烯烴系樹脂、聚酯系樹脂、及碸系樹脂中之至少任一種樹脂而形成。In the above-described indwelling needle insertion hole forming pin, the insertion portion may be formed of at least one selected from the group consisting of a polyolefin resin, a polyester resin, and a lanthanum resin.
又，於上述構成之留置針插入用孔形成銷中，亦可構成為：上述聚烯烴系樹脂係聚丙烯，上述聚酯系樹脂係聚對苯二甲酸乙二酯、二醇變性聚對苯二甲酸乙二酯、二醇變性聚酯、TRITAN(註冊商標)、ECOZEN(註冊商標)之任一者，上述碸系樹脂係聚醚碸。Further, in the above-described indwelling needle insertion hole forming pin, the polyolefin resin-based polypropylene, the polyester resin-based polyethylene terephthalate, and the diol-modified polyparaphenylene may be used. Ethylene dicarboxylate, a diol-modified polyester, TRITAN (registered trademark), or ECOZEN (registered trademark), the above-mentioned oxime resin-based polyether oxime.
又，於上述構成之留置針插入用孔形成銷中，亦可構成為：上述樹脂之洛氏硬度為R80~R120之範圍內。Further, in the indwelling needle insertion hole forming pin having the above configuration, the resin may have a Rockwell hardness in the range of R80 to R120.
本新型中，根據以上之構成，發揮可提供較佳之留置針插入用孔形成件之效果。According to the above configuration, the present invention exhibits an effect of providing a preferred hole insertion hole forming member.
1‧‧‧留置針插入用孔形成銷1‧‧‧Indwelling needle insertion hole forming pin
2‧‧‧操作輔助件2‧‧‧Operational aids
11‧‧‧插入部11‧‧‧Insert Department
12‧‧‧插入停止部12‧‧‧Insert stop
21‧‧‧前端部21‧‧‧ front end
111‧‧‧插入部之前端111‧‧‧The front end of the insertion section
121‧‧‧凹部121‧‧‧ recess
圖1係本新型之留置針插入用孔形成銷之立體圖。Fig. 1 is a perspective view showing a pin for forming an indwelling needle of the present invention.
圖2係圖1所示之留置針插入用孔形成銷之操作輔助件。Fig. 2 is an operation aid for forming a pin for the indwelling needle insertion hole shown in Fig. 1.
基於圖式對本新型之一實施例進行說明。An embodiment of the present invention will be described based on the drawings.
圖1係表示本新型之用以形成自皮膚表面至血管內為止之留置針插入用孔之中、至血管壁為止或其最近處為止之部分之銷(以下，稱為孔形成銷)1之立體圖，且由圓柱狀之插入部11及設置於該插入部11之基端之插入停止部12而構成，於插入停止部12設置有作為保持部之凹部121。Fig. 1 is a view showing a pin (hereinafter referred to as a hole forming pin) 1 for forming a portion of the indwelling needle insertion hole from the skin surface into the blood vessel to the blood vessel wall or the nearest portion thereof. The perspective view is composed of a cylindrical insertion portion 11 and an insertion stop portion 12 provided at a proximal end of the insertion portion 11, and a recess portion 121 as a holding portion is provided in the insertion stop portion 12.
圓柱狀之插入部11成為前端111帶圓弧之形狀。藉由該形狀，而於由透析用留置針等穿刺之部位，插入該插入部11形成孔時，不會產生根部偏移或損傷其他部位之情況。而且，為了形成可供前端並不銳利之留置針插入之程度之孔，外徑較佳為0.5~3.0mm，更佳為1.0~2.0mm。而且，於該孔形成銷1之留置時，為使前端111到達血管壁或僅到達血管壁之最近處，不壓迫血管壁，而長度較佳為3~20mm，更佳為4~6mm。The cylindrical insertion portion 11 has a shape in which the front end 111 has an arc. By this shape, when the insertion portion 11 is inserted into a portion that is punctured by the dialysis indwelling needle or the like, the root portion is not displaced or the other portion is damaged. Further, in order to form a hole to which the indwelling needle which is not sharpened at the front end is inserted, the outer diameter is preferably 0.5 to 3.0 mm, more preferably 1.0 to 2.0 mm. Further, when the hole forming pin 1 is placed, the front end 111 reaches the blood vessel wall or only reaches the blood vessel wall, and the blood vessel wall is not pressed, and the length is preferably 3 to 20 mm, more preferably 4 to 6 mm.
作為該插入部11之形成材料，較佳地使用例如雙酚A等之內分泌攪亂物質之漏出之可能性較低之樹脂，且由ISO2039-2規定之洛氏硬度為R60~R120之範圍內、較佳為R80~R120之範圍內之樹脂。As a material for forming the insertion portion 11, a resin having a low possibility of leakage of an endocrine disrupting substance such as bisphenol A is preferably used, and the Rockwell hardness specified in ISO 2039-2 is in the range of R60 to R120. Preferably, the resin is in the range of R80 to R120.
作為具有此種硬度之樹脂，具體而言，可列舉聚乙烯、聚四氟乙烯、聚丙烯等之聚烯烴系樹脂；聚對苯二甲酸乙二酯(PET)、二醇變性聚對苯二甲酸乙二酯(PET-G)、二醇變性聚酯、TRITAN(Eastman Chemical Company(US)之註冊商標)、ECOZEN(SK Chemicals Company(韓國)之註 冊商標)等之聚酯系樹脂；聚醚碸(PES)、聚碸(PSF)等之碸系樹脂；ABS樹脂等。該等樹脂之中，較佳地使用聚丙烯、PET、PET-G、二醇變性聚酯、TRITAN(註冊商標)、ECOZEN(註冊商標)、PES等。該等樹脂均係漏出雙酚A之可能性較低，且可將上述洛氏硬度設定於上述範圍內者。Specific examples of the resin having such hardness include polyolefin resins such as polyethylene, polytetrafluoroethylene, and polypropylene; polyethylene terephthalate (PET) and diol-denatured polyphenylene terephthalate. Ethylene formate (PET-G), diol-modified polyester, TRITAN (registered trademark of Eastman Chemical Company (US)), ECOZEN (note of SK Chemicals Company (Korea)) A polyester resin such as a trademark; a fluorene resin such as polyether oxime (PES) or polyfluorene (PSF); or an ABS resin. Among these resins, polypropylene, PET, PET-G, diol-modified polyester, TRITAN (registered trademark), ECOZEN (registered trademark), PES, and the like are preferably used. These resins are all less likely to leak bisphenol A, and the above Rockwell hardness can be set within the above range.
再者，該等樹脂既可僅使用1種，亦可將2種以上組合使用。又，亦可於該等樹脂之表面塗敷抗血栓性材料。進而，亦可於該等樹脂中包含公知之添加劑等。即，插入部11亦可由包含上述樹脂及其他成分之樹脂組成物而形成。In addition, these resins may be used alone or in combination of two or more. Further, an antithrombotic material may be applied to the surface of the resins. Further, a known additive or the like may be contained in the resins. That is, the insertion portion 11 may be formed of a resin composition containing the above resin and other components.
插入停止部12具有較插入部11大之尺寸，以防止孔形成銷1埋沒於皮膚之中，並且於留置時易於固定。該插入停止部12設置於插入部11之基端，作為其形狀，可採用球狀、平板狀、圓錐狀、雞蛋形狀等，其中較佳地採用球狀。而且，於球狀之情形時，直徑較佳為2~10mm左右，更佳為3~5mm。通常，插入部11與插入停止部12係藉由射出成形而一體地成形，但該等亦可分開成形後組裝。於該情形時，作為插入停止部12之形成材料，只要使用與上述插入部11相同之材料即可。The insertion stop portion 12 has a larger size than the insertion portion 11 to prevent the hole forming pin 1 from being buried in the skin, and is easy to fix at the time of indwelling. The insertion stop portion 12 is provided at the base end of the insertion portion 11, and as the shape thereof, a spherical shape, a flat shape, a conical shape, an egg shape, or the like can be employed, and among them, a spherical shape is preferable. Further, in the case of a spherical shape, the diameter is preferably about 2 to 10 mm, more preferably 3 to 5 mm. Usually, the insertion portion 11 and the insertion stop portion 12 are integrally molded by injection molding, but these may be separately formed and assembled. In this case, as the material for forming the insertion stopper 12, the same material as the insertion portion 11 described above may be used.
本新型之孔形成銷1非常小，戴著手套之醫療從業人員難以用指尖保持，故而於操作時，較佳為可使用如圖2所示之全長3~10cm左右之操作輔助件2。因此，於插入停止部12，設置有用以可由操作輔助件2保持之保持部。作為該保持部，例如採用如圖1所示之設置於插入停止部12之基端之凹部121。而且，於該孔形成銷1之留置操作時，操作輔助件2之細徑之前端部21裝卸自如地插入至孔形成銷1之凹部121。再者，作為保持部，並不限定於圖1所示之凹部121，例如，亦可於側壁設置一對凹部等，於該情形時，作為操作輔助件較佳地採用如鑷子般者。即，只要於插入停止部12設置至少一個凹部121即可。The hole forming pin 1 of the present invention is very small, and the medical practitioner wearing gloves is difficult to hold with the fingertip. Therefore, in operation, it is preferable to use the operation aid 2 of about 3 to 10 cm in length as shown in FIG. Therefore, in the insertion stop portion 12, a holding portion that can be held by the operation aid 2 is provided. As the holding portion, for example, a concave portion 121 provided at the base end of the insertion stopping portion 12 as shown in FIG. 1 is used. Further, at the time of the indwelling operation of the hole forming pin 1, the end portion 21 of the small diameter of the operation assisting member 2 is detachably inserted into the concave portion 121 of the hole forming pin 1. Further, the holding portion is not limited to the concave portion 121 shown in Fig. 1. For example, a pair of concave portions or the like may be provided on the side wall. In this case, it is preferable to use a scorpion as an operation aid. That is, at least one concave portion 121 may be provided in the insertion stopping portion 12.
又，本例中，使孔形成銷1之凹部121之直徑與操作輔助件 2之前端部21之直徑大致相同而使該等嵌合，但亦可於各者之前端部設置突起等而將突起彼此扣合，亦可分別設置螺紋而使其等螺合。Further, in this example, the diameter of the recess 121 of the hole forming pin 1 and the operation aid are made 2 The front end portions 21 have substantially the same diameter and are fitted to each other. However, protrusions or the like may be provided at the front end portions of the respective members, and the protrusions may be engaged with each other, or the threads may be separately provided and screwed.
其次，對本新型之孔形成銷之用途進行說明。Next, the use of the hole forming pin of the present invention will be described.
首先，將由具有銳利之前端之內針與塑膠外套針構成之透析用留置針刺入至患者之靜脈，實施血液透析之後，拔出該透析用留置針。First, the dialysis indwelling needle composed of the inner needle having the sharp front end and the plastic outer needle is inserted into the vein of the patient, and after the hemodialysis is performed, the indwelling needle for dialysis is pulled out.
剛拔出透析用留置針之後，形成傷並形成通路，故而沿著該通路插入本新型之孔形成銷。於該插入時，使用操作輔助件，將孔形成銷插入至插入停止部為止之後，用手把持插入停止部，卸下操作輔助件。Immediately after the indwelling needle for dialysis is pulled out, an injury is formed and a passage is formed, so that the hole forming pin of the present invention is inserted along the passage. At the time of this insertion, after inserting the hole forming pin into the insertion stop portion using the operation aid, the insertion stopper is manually gripped, and the operation aid is removed.
若用絆創膏覆蓋插入停止部，將孔形成銷留置數天之後拔去，則形成自皮膚表面至血管內為止之留置針插入用孔之中、至血管壁為止或其最近處為止之部分。因此，若由前端銳利之穿刺針穿刺血管壁僅1次，則自皮膚表面至血管內為止之留置針插入用孔完成。通常，於不使用時，孔由凝固或半凝固狀態之血液堵塞，該孔入口之表面成為較小之瘡痂狀。於將透析用留置針留置於孔時，只要利用透折用留置針將瘡痂剝離等之後插入至孔即可。再者，作為插入至該孔之透析用留置針，較佳為採用前端並不銳利者，藉此不會給患者帶來苦痛。When the insertion stopper is covered with the adhesive plaster, the hole-forming pin is left for a few days and then removed, and the portion from the skin surface to the indwelling needle insertion hole of the blood vessel to the blood vessel wall or the nearest portion thereof is formed. Therefore, when the blood vessel wall is punctured only once by the sharp-ended puncture needle, the indwelling needle insertion hole is completed from the skin surface to the blood vessel. Typically, when not in use, the pores are blocked by blood in a coagulated or semi-solidified state, and the surface of the entrance of the well becomes a smaller scab. When the indwelling needle for dialysis is left in the hole, it is only necessary to insert the wound into the hole by peeling off the sore with an indwelling needle for perforation. Further, as the indwelling needle for dialysis inserted into the hole, it is preferable that the front end is not sharp, thereby not causing pain to the patient.
如以上所述，根據本新型之孔形成銷，可安全且不限制患者之日常之活動地形成自患者之皮膚表面至血管內為止之留置針插入用孔之中、至血管壁為止或其最近處為止之部分。又，藉由形成該孔，作為透析用留置針可採用前端並不銳利者，故而即便於透析用留置針之插入時，亦不會損傷患者之皮膚或血管，從而可減輕患者之痛苦。As described above, the hole forming pin according to the present invention can be formed safely and without restricting the daily activities of the patient from the skin surface of the patient to the indwelling needle insertion hole to the blood vessel wall, or the nearest to the blood vessel wall. The part so far. Further, by forming the hole, the indwelling needle for dialysis can be used without sharpening the tip end. Therefore, even when the indwelling needle for dialysis is inserted, the skin or blood vessel of the patient is not damaged, and the pain of the patient can be alleviated.
本新型可廣泛且較佳地用於形成用以將留置針自皮膚表面至血管留置之留置針插入用孔之領域。The present invention is widely and preferably used in the field of forming an indwelling needle insertion hole for retaining an indwelling needle from a skin surface to a blood vessel.
1‧‧‧留置針插入用孔形成銷1‧‧‧Indwelling needle insertion hole forming pin
11‧‧‧插入部11‧‧‧Insert Department
12‧‧‧插入停止部12‧‧‧Insert stop
111‧‧‧插入部之前端111‧‧‧The front end of the insertion section
121‧‧‧凹部121‧‧‧ recess
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103203833U TWM486457U (en) | 2014-03-06 | 2014-03-06 | Retaining needle insertion specified hole forming pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103203833U TWM486457U (en) | 2014-03-06 | 2014-03-06 | Retaining needle insertion specified hole forming pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM486457U true TWM486457U (en) | 2014-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103203833U TWM486457U (en) | 2014-03-06 | 2014-03-06 | Retaining needle insertion specified hole forming pin |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM486457U (en) |
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2014
- 2014-03-06 TW TW103203833U patent/TWM486457U/en not_active IP Right Cessation
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