CN1137734C - 以模具斜切导管的方法 - Google Patents

以模具斜切导管的方法 Download PDF

Info

Publication number
CN1137734C
CN1137734C CNB971215022A CN97121502A CN1137734C CN 1137734 C CN1137734 C CN 1137734C CN B971215022 A CNB971215022 A CN B971215022A CN 97121502 A CN97121502 A CN 97121502A CN 1137734 C CN1137734 C CN 1137734C
Authority
CN
China
Prior art keywords
conduit
mandrel rod
mould
mandrel
catheter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB971215022A
Other languages
English (en)
Other versions
CN1188676A (zh
Inventor
R・C・布朗
R·C·布朗
常
J·J·常
俏ご幕
D·比亚韦茨基
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mei Deke Corp
This new Co.
Ethicon Endo Surgery Inc
Ethicon Inc
Original Assignee
Johnson and Johnson Medical Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson and Johnson Medical Inc filed Critical Johnson and Johnson Medical Inc
Publication of CN1188676A publication Critical patent/CN1188676A/zh
Application granted granted Critical
Publication of CN1137734C publication Critical patent/CN1137734C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • A61M25/001—Forming the tip of a catheter, e.g. bevelling process, join or taper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/166—Trimming tube-ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/02—Deburring or deflashing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor
    • B29L2031/7542—Catheters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/66—Processes of reshaping and reforming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/806—Flash removal

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Materials For Medical Uses (AREA)

Abstract

本发明涉及一种以模具斜切静脉注射导管端部的方法，其中该导管套在一轴棒上及在模具内成形。然后将该轴棒抽出及将第二轴棒插入。该第二轴棒具有较大的直径及适合与模具内表面接触以切割导管端部的齐平部及将该齐平部自该导管端部切离。

Description

以模具斜切导管的方法
技术领域
本发明系有关于一种医疗装置的成形方法，更详而言之，尤指在管状导管产品端部形成斜向尖端的方法。
背景技术
长时期以来都了解导管的锥型端部是周缘性全范围地插入静脉内，以减轻插入静脉时的痛楚。同时也发现到，现今大多数的产品在导管的端部具有双斜面。第一道斜面的锥度为3度，第二道斜面的锥度则为27度。这些端部可利用激光切割来成形，例如美国专利第5,425,903号所揭露，或由杜夫特的美国专利第4,661,300号来模制成形。
杜夫特的专利揭露出一种模制方法，其采用了单一步骤作业来形成及剪截导管。即导管套在轴棒上，且导管材料延伸超过轴棒，然后将此总成插入加热过的模具中，以形成导管的外表面，该轴棒于是被推进到一个与模具表面卡制的一点，并且在此一简单的步骤中剪下齐平部。
但该单一步骤工艺则具有明显的缺点，工具使用寿命减短，因为模具及轴棒都是做为切割装置使用，因此必需相互啮合，进而造成了磨损。这表示在使用期间，在导管上形成的外表面会因为轴棒与切割模具内表面的接触磨损而变得不一样。再者，必需更换工具以维持轴棒与模具间的尖锐，以利切割作业的进行。
发明内容
本发明系有关于一种在静脉注射导管端部进行斜切的方法。该方法包括将管状导管套在一支轴棒上，且该轴棒在工艺的至少部分期间支承该导管。至少在一实施例中，该轴棒延伸超过该管状导管的端部。提供一模具及将模具加热至足够的温度来软化该管状导管材料。该模具包括有锥型内模具表面。
该导管通过插入套有导管的轴棒而被插入模具中。该轴棒可完全贯穿模具，并由另一端伸出。
将套有导管的轴棒插入模具内，并通过让材料与模具的内表面接触可让导管材料熔化及流动。于是形成了导管的即定外表面和一个从导管顶端延伸的齐平部。然后将轴棒自模具内抽出，及将第二轴棒或裁刀插入仍在模具中的导管内。这支轴棒或裁刀较第一轴棒具有较大的直径，于是通过将第二轴棒朝前推进直到轴棒与模具部分接触，则导管端部的齐平部即可被修剪。
在本发明的一个优选实施例中，用于18规静脉注射导管的一轴棒的直径介于0.8382毫米至0.8636毫米(0.0330英寸至0.0340英寸)，及该第二轴棒的直径介于0.9271毫米至0.9525毫米(0.0365英寸至0.0375英寸)。而在又一优选实施例中该导管由聚四氟乙烯所形成，及该模具的加热范围介于摄氏343度至399度(华氏650至750度)。
在本发明的另一实施例中，管状导管套在一轴棒上，及提供一前述的模具。然后将轴棒连同导管一起插入模具内，以让导管材料熔化及沿着模具的内表面流动。该导管材料延伸超过所需要导管的端部而形成一部分齐平部。之后将带有齐平部的导管自模具内移出，然后再插入一切割模具内。于是通过将轴棒插入切割模具内，直到轴棒与切割模具的内表面接触，以将该齐平部由导管端部处切除。
在此工艺中，用在切割模具-切割作业中的轴棒可以与模制作业中的轴棒不同，因此限制了在模制作业中的轴棒的磨损。作为另一种选择，在模制及裁切作业中可采用同一轴棒。可想象到在模制步骤中，轴棒可完全贯穿模具，并且穿出模具第二端的开口，但仍然容许齐平部延伸超过所需导管端部的一端。
附图说明
本发明将配合以下的附图做详细说明：
图1示出了本发明模制方法的第一实施例；
图2为图1所示方法的切割步骤；
图3示出了在本发明的第二实施例，套有导管的轴棒插入模具中的情况；
图4示出了图3所示本发明第二实施例的模制方法；
图5示出了导管及轴棒由图3所示模具中抽出的情况；
图6示出了模制完成的导管及轴棒在图3所示方法中在第二工位插入一模具中的情况；
图7示出了在图3所示方法中将齐平部从成形后导管的端部斜切的情况；
图8示出了将导管及轴棒由图3所示方法中的模具中抽出的情况；及
图9示出了导管端部成形后，将轴棒由导管内抽出的情况。
具体实施方式
导管可利用不同的材料制成，及通常利用聚合物管挤出成形。现今最常用来制造导管的材料则为聚四氟乙烯及聚亚胺脂。
整个工艺将以概述的方式来描述。但是对于本领域技术人员可很容易地决定各项工艺参数。例如，可选择模制温度以获得适当的模制特性，欲又不会破坏到导管的材料(由于在受热下)或是使导管材料过度流动(因为过热)。
本发明方法的第一实施例示于图1及图2中。在该方法中，管状导管1，例如一聚四氟乙烯(PIFE)导管，套在一支特定直径(例如20规1.143毫米即0.045英寸的外径)的支承轴棒2上。该轴棒2采用不锈钢制成，且可由已知的气动式作动器、步进马达或类似装置来移动。设置一具有锥型内表面的模具3，该内表面与导管外表面的最终形状相符。该模具由钢材成形或加工，及具有一贯穿其内部的开口。该开口具有两个锥面，第一锥面的锥度5为3度，并沿着管的远端延伸，而第二锥面6的锥度则为27度且位于管的端部。
在工艺中，模具3被加热至接近摄氏360度(华氏680度)，然后导管1及轴棒2被插入模具3内。导管材料与模具3的接触则使导管加热至其熔点，并使材料开始在模具3内流动，并且部分地由模具第二端部的开口7处流出。轴棒2的直径则使轴棒可完全地贯穿模具，且不会接触到模具表面。在导管的端部会形成一齐平部8，该部分将于稍后自导管上切除。
将所述轴棒由模具3内抽出，并将导管材料留在模具内。第二轴棒9或冲头则于稍后插入导管1内。第二轴棒9的直径大于该第一轴棒2，例如对于18规静脉注射导管时为0.9398毫米(0.037英寸)。该轴棒9的尺寸设计成使其不会贯穿模具第二端部的开口，反而可与模具3的内表面啮合以便将齐平部8从导管端部冲下和切除。该第二轴棒9于是插入导管1内，直到第二轴棒与模具内表面啮合，进而将导管端部的齐平部切除。在完成此一动作后，将轴棒及导管由模具3内抽出，且模具3再度被加热以进行第二作业。该导管于是继续地进行处理，直到完成最终导管产品。
本发明的第二实施例则参照图3及图9描述。此实施例最好被称为两阶段工艺。
第二实施例中，导管1套在轴棒12上以插入模具13内，其方式与第一实施例相同。该导管1在套合于轴棒12上时，部分的导管材料会延伸超过轴棒。然后再将轴棒12连同导管1一并插入加热的模具13中。该模具13则与第一实施例所述的类似，且同样地加热至摄氏360度(华氏680度)。如图4所示、轴棒12在插入时，并不会与模具内表面接触，而导管材料则被加热并与模具内表面相符合，并形成延伸超出导管端部的齐平部14。然后将模制成形的导管及轴棒12同模具中抽出及冷却。最好是先让模具冷却或在半冷却时将导管材料抽出，然后再让导管材料在模具外完全冷却。
如图6所示，模制后的导管于是被插入第二工位的切割模具15内。例如，这可以是转盘上的第二工位，其中套有导管1的同一轴棒12则由模具位置移动至与切割模具15对齐的位置。然后轴棒及模制后的导管被插入切割模具15中，使得轴棒与模具内表面啮合，进而将齐平部自导管的端部切除。
当齐平部从导管切除后，最终成形的导管及轴棒则由模具中移出，并将导管自轴棒脱离。利用这种方式，第一工位的重要模制内表面便不会与轴棒接触，于是便不会出现现有技术中因为轴棒与模具的接触所造成的磨损。
再者，切割模具的制作材料可仅考虑其硬度，而无需考虑其导热。利用这种方式，模具可在其热容量/导热性上最佳化，而切割模具则可在其硬度及承受因为轴棒接触造成的磨损上最佳化。
本发明配合了较佳实施例来说明。而这些实施例可做各种修改及改变。例如，可采用管状利刃来取代进行切割的轴棒，或是切割模具也可采用刀片取代。

Claims (4)

1.一种斜切静脉注射导管端部的方法，包括以下步骤：
a)将一管状导管套在一轴棒上，其中该轴棒延伸超过该导管要削尖的一端；
b)将一具有锥型内表面的模具加热；
c)将载有该导管的轴棒插入该模具内，以使该导管材料与该内表面啮合；
d)容许该导管材料熔化及在该内表面处流动以形成该导管预定形状的外表面，带有一延伸超出该导管端部的齐平部；
e)将该轴棒由该模具内取出；
f)将具有较大直径的第二轴棒插入该导管及该模具内；
g)将该第二轴棒朝前推进直到该第二轴棒与该模具啮合及切割该导管的端部。
2.根据权利要求1的方法，其中用于18规静脉注射导管的所述一轴棒的直径介于0.8382毫米至0.8636毫米，及该第二轴棒的直径介于0.9271毫米至0.9525毫米。
3.根据权利要求1的方法，其中该导管由聚四氟乙烯所形成，及该模具的加热范围介于摄氏343度至399度。
4.根据权利要求1的方法，其中该模具包括一敞开的第二端，及当插入该模具时，该第一轴棒的尺寸刚好可完全通过该模具及由该第二端穿出。
CNB971215022A 1996-12-30 1997-10-18 以模具斜切导管的方法 Expired - Fee Related CN1137734C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/773,938 US5736085A (en) 1996-12-30 1996-12-30 Catheter beveling and die cut process
US773938 1996-12-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CNB031234305A Division CN1267165C (zh) 1996-12-30 1997-10-18 以模具斜切导管的方法

Publications (2)

Publication Number Publication Date
CN1188676A CN1188676A (zh) 1998-07-29
CN1137734C true CN1137734C (zh) 2004-02-11

Family

ID=25099768

Family Applications (2)

Application Number Title Priority Date Filing Date
CNB031234305A Expired - Fee Related CN1267165C (zh) 1996-12-30 1997-10-18 以模具斜切导管的方法
CNB971215022A Expired - Fee Related CN1137734C (zh) 1996-12-30 1997-10-18 以模具斜切导管的方法

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CNB031234305A Expired - Fee Related CN1267165C (zh) 1996-12-30 1997-10-18 以模具斜切导管的方法

Country Status (14)

Country Link
US (1) US5736085A (zh)
EP (1) EP0856329B1 (zh)
JP (1) JPH10192408A (zh)
KR (1) KR100504972B1 (zh)
CN (2) CN1267165C (zh)
AR (1) AR008862A1 (zh)
AU (1) AU713655B2 (zh)
BR (1) BR9705031A (zh)
CA (1) CA2216038C (zh)
CO (1) CO4750847A1 (zh)
DE (1) DE69735619D1 (zh)
NO (1) NO974316D0 (zh)
SG (1) SG54566A1 (zh)
TW (1) TW362065B (zh)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5843356A (en) * 1996-12-30 1998-12-01 Johnson & Johnson Medical, Inc. Catheter tip mold and cut process
US5985195A (en) * 1997-12-22 1999-11-16 Ethicon, Inc. One-step flashing bevel process for a catheter
US6740277B2 (en) 2002-04-24 2004-05-25 Becton Dickinson And Company Process of making a catheter
US20030219558A1 (en) * 2002-05-22 2003-11-27 Johnson John Woody Method and apparatus for restoring the necked-down end of a tubular core
US20050273076A1 (en) * 2004-06-07 2005-12-08 C.R. Bard, Inc. Subcutaneous infusion devices
US8029712B2 (en) * 2005-10-31 2011-10-04 Engineering & Research Associates, Inc. Method for collecting IV tubing tips
US7704067B2 (en) * 2006-02-07 2010-04-27 Tiodize Company, Inc. Method and mold for making non-metallic fiber reinforced parts
US20090187143A1 (en) 2008-01-18 2009-07-23 Ev3 Inc. Angled tip catheter
US8177742B1 (en) 2010-12-23 2012-05-15 Kimberly-Clark Wordwide, Inc. Inflatable retention system for an enteral feeding device
DE102013003795A1 (de) * 2013-03-05 2014-09-11 Liebherr-Verzahntechnik Gmbh Bearbeitungsverfahren zum Hartfeinbearbeiten von geräuschoptimierten Verzahnungen auf einer Verzahnmaschine
JP6506734B2 (ja) * 2013-03-15 2019-04-24 アボット、カーディオバスキュラー、システムズ、インコーポレーテッドＡｂｂｏｔｔ Ｃａｒｄｉｏｖａｓｃｕｌａｒ Ｓｙｓｔｅｍｓ Ｉｎｃ． カテーテルの材料削減先端部及びその形成方法
US20150122264A1 (en) * 2013-11-01 2015-05-07 Covidien Lp Curved distal tip for use with medical tubing and method for making the same
US10780246B2 (en) 2014-09-12 2020-09-22 Callisyn Biomedical, Inc. Vascular microcatheter
KR101651173B1 (ko) 2016-04-27 2016-08-25 (주)대일시스템 카테터의 베벨면 성형장치
KR102615489B1 (ko) 2017-05-26 2023-12-18 파이퍼 액세스 엘엘씨 카테터 전달 장치, 시스템 및 방법
CN107839127A (zh) * 2017-12-08 2018-03-27 浙江鑫凯汽车零部件有限公司 一种塑料管状零件旋转切割设备
JP6959356B2 (ja) * 2017-12-22 2021-11-02 株式会社カネカ カテーテルの製造方法、およびカテーテル
CA3122040A1 (en) * 2018-12-07 2020-06-11 Becton, Dickinson And Company Injection molded cannula and method for making same
KR102313125B1 (ko) 2020-09-28 2021-10-15 한국생산기술연구원 크롬 코팅 핀이 탑재된 카테터 팁 포밍용 지그

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1398548A (en) * 1972-10-30 1975-06-25 Canadian Ind Shotgun cartridge cases
US3843300A (en) * 1973-09-26 1974-10-22 R Mcfarlane Tip forming machine and process
US3929960A (en) * 1973-10-01 1975-12-30 Canadian Ind Method for producing oriented plastic shotshells
US3983203A (en) * 1973-11-16 1976-09-28 Sherwood Medical Industries Inc. Method of making a catheter with an integral Luer lock means
JPS5365374A (en) * 1976-11-24 1978-06-10 Mitsubishi Plastics Ind Method for making faucet of resin tube
US4264294A (en) * 1979-01-08 1981-04-28 Ruiz Oscar F Profiling die
US4292270A (en) * 1979-06-22 1981-09-29 Baxter Travenol Laboratories, Inc. Method and apparatus for making coude catheters
US4373894A (en) * 1980-02-22 1983-02-15 Patient Technology, Inc. Method and apparatus for making plastic tubes
US4404159A (en) * 1981-03-16 1983-09-13 Mcfarlane Richard H Apparatus and process for forming a tapered tip end on a plastic tube
US4551292A (en) * 1984-04-05 1985-11-05 Angiomedics, Inc. Method for making a catheter with a soft, deformable tip
US4661300A (en) 1984-09-12 1987-04-28 Becton, Dickinson And Company Method and apparatus for flashless tipping of an I.V. catheter
JP2520126B2 (ja) * 1987-04-28 1996-07-31 株式会社 ニツシヨ− 留置針外針の先端部形成方法
US4961809A (en) * 1988-04-21 1990-10-09 Vas-Cath Incorporated Method of producing a dual lumen catheter including forming a flare
US5188593A (en) * 1988-04-21 1993-02-23 Vas-Cath Incorporated Dual lumen catheter
US5017259A (en) * 1988-10-13 1991-05-21 Terumo Kabushiki Kaisha Preparation of catheter including bonding and then thermoforming
JP2905828B2 (ja) * 1989-12-05 1999-06-14 株式会社吉野工業所 シリンジ筒成形装置とシリンジ筒成形方法
US5102324A (en) * 1990-01-22 1992-04-07 Worldwide Medical Plastics Inc. Precision tipping device for surgical catheters
CA2107539A1 (en) * 1992-10-02 1994-04-03 Vas-Cath Incorporated Catheters and method of manufacture
US5425903A (en) * 1993-09-10 1995-06-20 Critikon, Inc. Laser beveling process for catheters
US5397512A (en) * 1993-09-10 1995-03-14 Critikon, Inc. Process for sealing catheter tip to insertion needle
JP3304345B2 (ja) * 1995-12-04 2002-07-22 ニプロ株式会社 留置針外針およびその製造方法
US5985195A (en) * 1997-12-22 1999-11-16 Ethicon, Inc. One-step flashing bevel process for a catheter
JP2001299925A (ja) * 2000-04-25 2001-10-30 Jiima Kk カテーテル

Also Published As

Publication number Publication date
AR008862A1 (es) 2000-02-23
BR9705031A (pt) 1999-06-15
EP0856329B1 (en) 2006-04-05
US5736085A (en) 1998-04-07
JPH10192408A (ja) 1998-07-28
CA2216038C (en) 2005-11-15
KR100504972B1 (ko) 2005-09-30
CN1188676A (zh) 1998-07-29
AU713655B2 (en) 1999-12-09
AU3836697A (en) 1998-07-02
CO4750847A1 (es) 1999-03-31
NO974316D0 (no) 1997-09-19
CN1267165C (zh) 2006-08-02
EP0856329A3 (en) 1999-09-08
CN1486757A (zh) 2004-04-07
DE69735619D1 (de) 2006-05-18
TW362065B (en) 1999-06-21
EP0856329A2 (en) 1998-08-05
SG54566A1 (en) 1998-11-16
CA2216038A1 (en) 1998-06-30
KR19980063496A (ko) 1998-10-07

Similar Documents

Publication Publication Date Title
CN1137734C (zh) 以模具斜切导管的方法
EP0850655B1 (en) Catheter tip mold and cut process
JP3878026B2 (ja) ニ重壁コルゲート管の製造方法
CN1149107C (zh) 单步骤利用飞边形成斜边的方法
JP6068756B2 (ja) 分岐部付き中空部品の製造方法および製造装置
JPH10155910A (ja) ばりの無いカテーテル面取り方法
CN105437529A (zh) 用于制造套管扩口的方法和扩口机
JPH056468B2 (zh)
JP2003211522A (ja) ニ重壁コルゲート管の製造方法
CN115052568A (zh) 一种用于切割、去除和清洁的螺旋体及其生产方法
CN213919534U (zh) 一种便于更换的塑料吹塑用定型模具
NZ328822A (en) Bevelling the tip of an intravenous catheter comprising heating the catheter in a mould having a tapered inner surface
US4799412A (en) Method for severing the ends of tubing
KR19980024501A (ko) 카테테르의 몰드리스 경사 절단 방법
MXPA98000180A (en) Procedure of molding and cut of tip of cate
MXPA97007510A (en) Beveling and cutting procedure for the gift of cate
MXPA97010061A (en) Beeting of catheters by gradiente term
JPH09187507A (ja) 留置針外針の先端加工方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: XIN ANDU CO.

Free format text: FORMER OWNER: ETHICON, INC

Effective date: 20060421

Owner name: MEI CES CO.,LTD.

Free format text: FORMER OWNER: ETHICON ENDO SURGERY INC.

Effective date: 20060421

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee

Owner name: ETHICON, INC

Free format text: FORMER NAME OR ADDRESS: JOHNSON + JOHNSON MEDICAL, INC.

Owner name: ETHICON ENDO SURGERY INC.

Free format text: FORMER NAME OR ADDRESS: XIN ANDU CO.

CP01 Change in the name or title of a patent holder

Address after: Ohio, USA

Patentee after: ETHICON ENDO-SURGERY, Inc.

Address before: Ohio, USA

Patentee before: This new Co.

Address after: New jersey, USA

Patentee after: ETHICON, Inc.

Address before: Texas, USA

Patentee before: JOHNSON & JOHNSON MEDICAL LTD.

TR01 Transfer of patent right

Effective date of registration: 20060421

Address after: California, USA

Patentee after: Mei Deke Corp.

Address before: Ohio, USA

Patentee before: ETHICON ENDO-SURGERY, Inc.

Effective date of registration: 20060421

Address after: Ohio, USA

Patentee after: This new Co.

Address before: New jersey, USA

Patentee before: ETHICON, Inc.

C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee