WO1981002996A1 - Matrice a profiler - Google Patents

Matrice a profiler Download PDF

Info

Publication number
WO1981002996A1
WO1981002996A1 PCT/US1980/000513 US8000513W WO8102996A1 WO 1981002996 A1 WO1981002996 A1 WO 1981002996A1 US 8000513 W US8000513 W US 8000513W WO 8102996 A1 WO8102996 A1 WO 8102996A1
Authority
WO
WIPO (PCT)
Prior art keywords
bore
face
extending
inner end
zone
Prior art date
Application number
PCT/US1980/000513
Other languages
English (en)
Inventor
O Ruiz
Original Assignee
O Ruiz
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 O Ruiz filed Critical O Ruiz
Priority to EP80900970A priority Critical patent/EP0053106A1/fr
Priority to PCT/US1980/000513 priority patent/WO1981002996A1/fr
Publication of WO1981002996A1 publication Critical patent/WO1981002996A1/fr

Links

Classifications

    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
    • B29C48/3003—Materials, coating or lining therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Definitions

  • This invention relates to a profiling die which is useful to finish or size a profile extruded tubular plastic material, such as a tubular length for use in a catheter.
  • This invention is of a mold or die for use in finishing tubular material of plastic and, by way of particular example, tube lengths for use as angio- graphic catheters. It will be appreciated that it is important that such tubular lengths have resistance to torsion so that the distal end responds as closely as possible to rotation at the proximal end. Further, it is important to have a catheter which is capable of delivering a relatively large volume, that is, one which has as thin a wall as possible so as to present a lumen of maximum diameter which is strong and smooth on the interior and yet which has the other qualities herein discussed. -It is further important that such a tubular length do not promote clotting within the time of a normal medical procedure.
  • catheters are inserted axially into a tubular shaped zone of the body and a catheter should, therefore, be sufficiently stiff so as not to buckle under axial pressure and also be characterized by what is often termed as lubriscity.
  • the " catheter " when deformed " should have a memory capacity so as to return to the correct shape after being straightened by a guide wire during positioning of the catheter.
  • a low coefficient of friction between the inside of the catheter and the guide wire as well as between the outside surface of the catheter at the entrance site and the body termed lubriscity, is important.
  • This invention is of a mold or die for use in making a catheter with such characteristics including a high tensil flexible plastic such as one of a material from the nylon family which may be covered by another biocompatible like urethanes properly treated to decrease the high coefficient of friction.
  • the present invention provides a die or mold whereby
  • a substantially larger lumen for a tube length may be produced without sacrificing the other characteris ⁇ tics set forth above. It will be understood by those in the art that this tool is useful in extruding such materials as are used in the art for such catheters , _- which may have a radial opaque ingredient.
  • this invention is of a die for making catheters, or tubular lengths for cathe-
  • Therinvention is of " a " ⁇ " die preferably made of brass which in use is heated
  • Teflon material of predetermined form and which is of " ' integral " molded form is disposed " . ' ' ⁇ '
  • the : die preferably includes a plug so that it can be used directly in front of the extruder.
  • the instant invention while : described in. one embodiment. can.be used for forming. .
  • the invention is for use in a process of forming inside and outside profiles for catheter lengths and includes the forming die with an interior cavity with the outside profile desired covered by a preformed Teflon shrink tubing with the required heat and tip desired and a stainless steel portion.
  • the procedure is to insert a mandrel into the cavity as is well known in the art so that plastic may be passed through the die and the mandrel may be withdrawn from the other side of the die.
  • Figure 1 is the end view of a mold constructed in accordance with the instant invention
  • Figure 2 is a view in cross section taken on the plane indicated by the line 2-2 of Figure 1 and looking in the direction of the arrows.
  • a mold 14 having a body 20 with an end face 18 and an opposite end face and an axially extending annular surface 16 which is jacketed by a conventional heater means 15,
  • first axial bore 22 of predetermined size extending from one end face and from the other end face 18 a second coaxial threaded bore of a larger diameter than that of the first mentioned
  • a coaxial tapered section 24 is provided between the inner end of these two bores.
  • a threaded plug 28 is provided with a tapered inner end.
  • the tapered section has an outwardly flared shoulder at
  • This annular outer face of the plug may be provided with a cutout 28' for a screwdriver - or the.like it to captivate the Teflon ' insert.
  • Teflon member which is integral is inserted; and its end 36 is .captivated in place as shown by the plug in the preferred embodiment.
  • Teflon is the trademark of a well known commercially available product of the
  • This " eflo " insert has a " tapered end zone indicated by the numeral 38 to line along the tapered section 24 and an outwardly flared terminal end zone . . . 36 to.dwell.oh the. shoulder, to be held by the end
  • the member has an axially extending zone 32 terminating at a tip 34, which is exterior of the die as shown; and the tip 34 is outwardly flared somewhat to smoothly or gradually
  • OMP WIP break away from or depart from a plastic length on a mandrel being pulled axially from the right side of Figure 2 to and out the left side of Figure 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Une matrice a profiler (14) utilisee dans le traitement de materiau tubulaire ou la finition est prioritaire, par exemple un catheter, se compose d'un corps (20) en materiau conducteur de chaleur ayant un passage traversant forme d'un premier alesage (22) s'etendant depuis une face et d'un second alesage coaxial s'etendant depuis une face opposee (18), le second alesage etant plus grand que le premier alesage (22) le troncon intermediaire (24) entre les alesages etant conique depuis le diametre du second alesage vers le diametre du premier alesage (22), la section intermediaire conique (24) et le premier alesage (22) etant en alignement par une insertion annulaire integrale en teflon, un organe de retenue etant prevu pour maintenir l'insertion dans la matrice.
PCT/US1980/000513 1980-04-23 1980-04-23 Matrice a profiler WO1981002996A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP80900970A EP0053106A1 (fr) 1980-04-23 1980-04-23 Matrice a profiler
PCT/US1980/000513 WO1981002996A1 (fr) 1980-04-23 1980-04-23 Matrice a profiler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
WOUS80/00513 1980-04-23
PCT/US1980/000513 WO1981002996A1 (fr) 1980-04-23 1980-04-23 Matrice a profiler

Publications (1)

Publication Number Publication Date
WO1981002996A1 true WO1981002996A1 (fr) 1981-10-29

Family

ID=22154321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1980/000513 WO1981002996A1 (fr) 1980-04-23 1980-04-23 Matrice a profiler

Country Status (2)

Country Link
EP (1) EP0053106A1 (fr)
WO (1) WO1981002996A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988009716A1 (fr) * 1987-06-03 1988-12-15 Müanyagipari Kutató Intézet Procede et outils facilitant le traitement de polymeres thermoplastiques
GB2221741A (en) * 1988-08-11 1990-02-14 British Gas Plc Lining pipes

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268321A (en) * 1940-11-20 1941-12-30 Wardlyn Corp Catheter
US2403476A (en) * 1944-08-08 1946-07-09 Du Pont Extrusion apparatus
US2708772A (en) * 1950-08-28 1955-05-24 British Celanese Method and apparatus for extruding hollow articles
US2862244A (en) * 1955-02-28 1958-12-02 Minnesota Mining & Mfg Extrusion molding of copolymers of trifluorochloroethylene and vinylidene fluoride
US2940126A (en) * 1958-06-03 1960-06-14 David S Sheridan Production of tapered medico-surgical tubes which have controlled wall thickness by extrusion
US3427375A (en) * 1967-12-18 1969-02-11 Phillips Petroleum Co External and internal falling water film quench of polymer tubing
US3446884A (en) * 1966-04-22 1969-05-27 Canadian Ind Extrusion process and apparatus for producing a thermoplastic pipe having a glossy surface
US3911069A (en) * 1971-11-11 1975-10-07 Dainichi Nippon Cables Ltd Method of manufacturing multilayered articles
JPS524585B1 (fr) * 1971-05-13 1977-02-04
JPH0523462A (ja) * 1991-11-29 1993-02-02 Brother Ind Ltd ミシン

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268321A (en) * 1940-11-20 1941-12-30 Wardlyn Corp Catheter
US2403476A (en) * 1944-08-08 1946-07-09 Du Pont Extrusion apparatus
US2708772A (en) * 1950-08-28 1955-05-24 British Celanese Method and apparatus for extruding hollow articles
US2862244A (en) * 1955-02-28 1958-12-02 Minnesota Mining & Mfg Extrusion molding of copolymers of trifluorochloroethylene and vinylidene fluoride
US2940126A (en) * 1958-06-03 1960-06-14 David S Sheridan Production of tapered medico-surgical tubes which have controlled wall thickness by extrusion
US3446884A (en) * 1966-04-22 1969-05-27 Canadian Ind Extrusion process and apparatus for producing a thermoplastic pipe having a glossy surface
US3427375A (en) * 1967-12-18 1969-02-11 Phillips Petroleum Co External and internal falling water film quench of polymer tubing
JPS524585B1 (fr) * 1971-05-13 1977-02-04
US3911069A (en) * 1971-11-11 1975-10-07 Dainichi Nippon Cables Ltd Method of manufacturing multilayered articles
JPH0523462A (ja) * 1991-11-29 1993-02-02 Brother Ind Ltd ミシン

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988009716A1 (fr) * 1987-06-03 1988-12-15 Müanyagipari Kutató Intézet Procede et outils facilitant le traitement de polymeres thermoplastiques
GB2221741A (en) * 1988-08-11 1990-02-14 British Gas Plc Lining pipes
GB2221741B (en) * 1988-08-11 1992-02-12 British Gas Plc Pipelining and liner pipe swaging dies

Also Published As

Publication number Publication date
EP0053106A1 (fr) 1982-06-09

Similar Documents

Publication Publication Date Title
US4264294A (en) Profiling die
US5167647A (en) Catheter with a strain relief member
US4044765A (en) Flexible tube for intra-venous feeding
EP0637453A1 (fr) Procédé de fabrication d'un cathéter avec au moins un tube haute-pression et cathéter
CN102802713B (zh) 一种导尿管和用于注射成型所述导尿管的方法
US2561569A (en) Method of making catheters
EP0893137A2 (fr) Assemblage de cathéter à demeure et méthode pour sa fabrication
CN100581783C (zh) 导管成形装置
JPH07148264A (ja) マイクロカテーテル
JPS5822225B2 (ja) プラスチツクカテ−テルセイゾウホウホウ
US4005166A (en) Process of molding a catheter
CA2272427C (fr) Tubes medico-chirurgicaux et methodes de fabrication
EP3131613B1 (fr) Pointe de cathéter moulée
US6083440A (en) Method of making an outer cannula for an intravenous cannula and a cannula made by the method
AU719854B2 (en) Flashless catheter beveling process
WO1981002996A1 (fr) Matrice a profiler
US20110276033A1 (en) Wire guide and method of making same
CN101626799A (zh) 改进的导线导引器和成形工具
JPH042271B2 (fr)
US5247136A (en) Resin cored enclosed fine metal wires and apparatus for manufacture therefore
KR20170002621A (ko) 카테터, 카테터 제조용 금형, 카테터의 제조 방법
US5549866A (en) Process of making a flow regulation device
JPH05123397A (ja) カテーテル等の流れ調整装置
US4124675A (en) Process of insert molding of teflon tube and plastic body
EP0341830B1 (fr) Cathéter d'introduction fissible avec pointe modifiée

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): AT BR DK JP SU

AL Designated countries for regional patents

Designated state(s): CH DE FR GB LU SE