JPS6063128A - Method and apparatus for manufacturing chatheter - Google Patents
Method and apparatus for manufacturing chatheterInfo
- Publication number
- JPS6063128A JPS6063128A JP58171319A JP17131983A JPS6063128A JP S6063128 A JPS6063128 A JP S6063128A JP 58171319 A JP58171319 A JP 58171319A JP 17131983 A JP17131983 A JP 17131983A JP S6063128 A JPS6063128 A JP S6063128A
- Authority
- JP
- Japan
- Prior art keywords
- catheter
- side wall
- side hole
- punching blade
- hole forming
- 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.)
- Granted
Links
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
- A61M25/0015—Making lateral openings in a catheter tube, e.g. holes, slits, ports, piercings of guidewire ports; Methods for processing the holes, e.g. smoothing the edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- Pulmonology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
【発明の詳細な説明】 工発明の背景 技術分野 本発明は、カテーテルの製造方法および装置に関する。[Detailed description of the invention] Background of the invention Technical field The present invention relates to a method and apparatus for manufacturing a catheter.
従来技術
胸部、１１１！部等の体腔内等から血液、リンパ液、胆
汁等の体液を排出するのに使用されるカテーテルは、体
液等を吸引するための側孔を備えている。第１図は、上
記のようなカテーテル１を示す断面図であり、２は側孔
、３は先端孔、４は吸引調節孔、５は排出孔を示してい
る。即ち、カテーテルｌにおいては、排出孔５を吸引ラ
イン、排液ラインに接続することにより、側孔２、先端
孔３から吸引した体液を排出孔５から排出可能とじてい
る。また、吸引調節孔４を指等によって閉止することに
より、側孔２、先端孔３に吸引圧を作用可能とし、吸引
調節孔４から指等を開放することによって、側孔２．先
端孔３からの吸引動作を停止ｕ（能としている。Prior art chest, 111! Catheters used to drain body fluids such as blood, lymph, and bile from body cavities such as the body are equipped with side holes for aspirating body fluids and the like. FIG. 1 is a cross-sectional view of the catheter 1 as described above, in which 2 indicates a side hole, 3 a tip hole, 4 a suction adjustment hole, and 5 a discharge hole. That is, in the catheter 1, body fluid sucked from the side hole 2 and the tip hole 3 can be discharged from the drain hole 5 by connecting the drain hole 5 to the suction line and the drain line. In addition, by closing the suction adjustment hole 4 with a finger or the like, suction pressure can be applied to the side hole 2 and the tip hole 3, and by opening the suction adjustment hole 4 with a finger or the like, the side hole 2. The suction operation from the tip hole 3 is stopped.
上記カテーテルｌにおいては、カテーテルｌの体腔等へ
の挿入、留置、抜去時に、側孔２が組織に損傷を与えた
り、体液等の円滑な流れを妨げ、側孔２の部分に閉塞、
血液の凝固等が生ずるのを防止すべく、第１図に示すよ
うに、側孔２の外面側の周縁部に丸味６を帯びさせてい
る。In the above-mentioned catheter 1, when the catheter 1 is inserted into a body cavity, indwelling, or removed, the side hole 2 may cause damage to tissues or impede the smooth flow of body fluids, etc., and the side hole 2 may be blocked.
In order to prevent blood from coagulating, etc., the outer peripheral edge of the side hole 2 is rounded 6, as shown in FIG.
しかしながら、上記従来のカテーテルｌにあっては、カ
テーテルｌの側壁を打ち抜き刃等によって穿孔して側孔
２を開孔した後、側孔２の外面側の周縁部を加熱軟化し
、該周縁部に丸味６を形成０丁能としている。However, in the conventional catheter 1 described above, after the side wall of the catheter 1 is punched with a punching blade or the like to form the side hole 2, the peripheral edge of the outer surface of the side hole 2 is heated and softened, and the peripheral edge is heated and softened. It has a roundness of 6 and 0 cloves.
即ち、従来のカテーテルｌにおける側孔２の形成方法は
、側孔２の穿孔工程と、丸味６の形成工程の相〃に独立
した２工程を必要とし、丸味６を帯びてなる側孔２の形
成機構が複雑であるという不都合がある。That is, the method for forming the side hole 2 in the conventional catheter 1 requires two independent steps: the step of drilling the side hole 2 and the step of forming the roundness 6. There is a disadvantage that the formation mechanism is complicated.
ＩＩ発明の目的
本発明に係るカテーテル製造方法は、丸味を帯びてなる
側孔の形成機構を単純化することを目的とする。II. OBJECTS OF THE INVENTION The purpose of the catheter manufacturing method according to the present invention is to simplify the mechanism for forming a rounded side hole.
また、本発明に係るカテーテルの側孔形成装置は、丸味
を帯びてなる側孔を迅速かつ容易に形成可能とすること
を目的とする。Further, an object of the catheter side hole forming device according to the present invention is to enable the formation of a rounded side hole quickly and easily.
■発明の構成
上記目的を達成するために、本発明に係るカテーテルの
製造力′法は、熱可塑性樹脂からなり側壁に側孔を有す
るカテーテルの製造方法において、カテーテル本体を成
形後、カテーテルの外面に、１１／、 ７３する側孔形
成用部材とカテーテルの内面に当接する芯金とによって
カテーテルの側壁を挟持し、上記側孔形成用部材と芯金
とに高周波を供給し、カテーテルの側壁を高周波過熱さ
せ、上記側孔形成用部材によってカテーテルの側壁を貫
通させることにより、外面に対して丸味を帯びて開口す
る側孔を形成する工程を有するようにしたものである。■Structure of the Invention In order to achieve the above object, the method for manufacturing a catheter according to the present invention is a method for manufacturing a catheter made of thermoplastic resin and having a side hole in the side wall. 11/, the side wall of the catheter is held between the side hole forming member and the core metal that contacts the inner surface of the catheter, and a high frequency is supplied to the side hole forming member and the core metal to form the side wall of the catheter. The method includes a step of forming a side hole having a rounded opening to the outer surface by applying high-frequency heating and passing the side hole forming member through the side wall of the catheter.
また、本発明に係るカテーテルの製造方法は、前記側孔
形成用部材が打ち抜き刃であって、さらに前記カテーテ
ルの側壁を高周波加熱させ、上記側孔形成用部材によっ
てカテーテルの側壁を貫通させる工程が、カテーテル側
壁を高周波加熱させた後、上記打ち抜き刃によって、カ
テーテルの側壁を打ち抜く工程であるようにしたもので
ある。Further, in the method for manufacturing a catheter according to the present invention, the side hole forming member is a punching blade, and further includes the step of heating the side wall of the catheter with high frequency and causing the side hole forming member to penetrate the side wall of the catheter. , after the side wall of the catheter is heated with high frequency, the side wall of the catheter is punched out using the punching blade.
また、本発明に係るカテーテルの製造方法は。Further, there is a method for manufacturing a catheter according to the present invention.
前記カテーテルの側壁を高周波加熱させ、上記側孔形成
用部材によってカテーテルの側壁を貫通させる工程が、
カテーテルの側壁を高周波加熱させながら、側孔形成用
部材を芯金方向に進めてカテーテル側壁を貫通させるよ
うにしたものである。A step of heating the side wall of the catheter with high frequency and allowing the side hole forming member to penetrate the side wall of the catheter,
While the side wall of the catheter is heated with high frequency, the side hole forming member is advanced in the direction of the metal core to penetrate the side wall of the catheter.
また、本発明に係るカテーテルの製造方法は、前記高周
波電流が打ち抜き刃と芯金との間に流されるようにした
ものである。Further, in the method for manufacturing a catheter according to the present invention, the high frequency current is passed between the punching blade and the metal core.
また、本発明に係るカテーテルの側孔形成装置は、カテ
ーテルの外面に当接する打ち抜き刃と、カテーテルの内
面に当接する芯金と、カテーテルの側壁に高周波電流を
流す高周波発振器と打ち抜き刃を芯金に対して進退させ
る打ち抜き刃移動装置とを有してなり、打ち抜き刃移動
装置の作動により、打ち抜き刃と芯金との間にカテーテ
ルの側壁を挟持し、カテーテルの側壁を高周波加熱した
後、打ち抜き刃によってカテーテルの側壁を打ち抜き、
外面に対して丸味を帯びて開口する側孔を形成するよう
にしたものである。Further, the side hole forming device for a catheter according to the present invention includes a punching blade that contacts the outer surface of the catheter, a core metal that contacts the inner surface of the catheter, a high-frequency oscillator that flows a high-frequency current to the side wall of the catheter, and a punching blade that connects the core metal to the core metal. The device includes a punching blade moving device that moves forward and backward relative to the catheter, and when the punching blade moving device operates, the side wall of the catheter is held between the punching blade and the core metal, the side wall of the catheter is heated with high frequency, and then the punching is performed. Punch out the side wall of the catheter with a blade;
A side hole is formed with a rounded opening toward the outer surface.
また、本発明に係るカテーテルの側孔形成装置は、前記
芯金を導体の両側に絶縁体を接合することによって形成
し、打ち抜き刃と芯金の導体のそれぞれを高周波電流を
流すための電極とするようにしたものである。Further, in the side hole forming device for a catheter according to the present invention, the core metal is formed by bonding insulators on both sides of the conductor, and the punching blade and the conductor of the core metal are each formed with an electrode for passing a high frequency current. It was designed to do so.
■発明の詳細な説明
第２図は本発明の一実施例に係るカテーテルの側孔形成
装置を示す構成図、第３図（Ａ）ないしくＤ）は本発明
の一実施例に係るカテーテルの製造方法を示す工程図で
ある。■Detailed description of the invention FIG. 2 is a block diagram showing a side hole forming device for a catheter according to an embodiment of the present invention, and FIGS. 3(A) to D) are diagrams of a catheter according to an embodiment of the present invention. It is a process diagram showing a manufacturing method.
図においてｌＯは側孔を形成されるべきチューブ状のカ
テーテルであ・す、このカテーテル１゜は、熱可塑性樹
脂例えば塩化ビニル樹脂、ポリエチレン、ポリプロピレ
ン、ポリウレタンエラストマー、ポリアミドエラストマ
ー等の合成樹脂から形成されている。カテーテルｌＯの
外面には、側孔形成用部材としての打ち抜き刃１１が当
接可能とされ、この打ち抜き刃１１は、円筒状とされ、
その先端にカテーテルｌＯの側壁を打ち抜いて穿孔可能
とする刃部１２を備えている。また、カテーテルＩＯの
内面には、カテーテル１０の内部に挿入される芯金１３
が当接可能とされ、この芯金１３は、導体１４の両面に
絶縁体１５を接合している。In the figure, IO is a tube-shaped catheter in which a side hole is to be formed. ing. A punching blade 11 as a side hole forming member can come into contact with the outer surface of the catheter IO, and the punching blade 11 has a cylindrical shape,
The distal end thereof is provided with a blade portion 12 that can punch through the side wall of the catheter IO. In addition, a core metal 13 inserted into the inside of the catheter 10 is provided on the inner surface of the catheter IO.
This metal core 13 has insulators 15 bonded to both surfaces of the conductor 14.
打ち抜き刃１１には高周波発振器１６の出方端子が接続
され、芯金１３の導体１４にはアース端子が接続されて
いる。即ち、打ち抜き刃１１と芯金１３の導体１４は、
それぞれカテーテル１０の側壁に高周波電流を流すため
の陽極と陰極を形成している。An output terminal of a high frequency oscillator 16 is connected to the punching blade 11, and a ground terminal is connected to the conductor 14 of the core metal 13. That is, the conductor 14 of the punching blade 11 and the core metal 13 is
An anode and a cathode are formed on the side walls of the catheter 10, respectively, for flowing high-frequency current.
カテーテルｌＯの打ち抜き刃１１が当接する外面に対す
る反対側の外面には、押え板１７が当接可能とされてい
る。ここで、この実施例においては、カテーテルｌＯの
図において上面側の軸方向２位置に打ち抜き刃１１と押
え板１７を配置するとともに、カテーテルｌＯの下面側
の軸方向２位置に押え板１７と打ち抜き刃１１を配置し
、上面側の打ち抜き刃１１と下面側の押え板１７、下面
側の打ち抜き刃１１と上面側の押え板１７とによってカ
テーテル１０を、Ｌ下方向から挟持可能としている。A presser plate 17 can be brought into contact with the outer surface of the catheter 1O, which is opposite to the outer surface which the punching blade 11 contacts. In this embodiment, the punching blade 11 and the presser plate 17 are arranged at two positions in the axial direction on the upper surface side in the diagram of the catheter IO, and the presser plate 17 and the presser plate 17 are arranged at two positions in the axial direction on the lower surface side of the catheter IO. The blades 11 are arranged so that the catheter 10 can be held from below L by the punching blade 11 on the upper surface side and the presser plate 17 on the lower surface side, and by the punching blade 11 on the lower surface side and the presser plate 17 on the upper surface side.
１８．１９は本発明における打ち抜き刃移動装置として
の上下のシリンダ装置であり、上シリンダ装？！１８は
、上面側の打ち抜き刃１１と押え板１７を芯金１３に対
して進退可能とし、下シリンダ装置１９は、下面側の打
ち抜き刃１１と押え板１７を芯金１３に対して進退可能
としている。即ち、ｈ下のシリンダ装置１８．１９は、
押え板１７による背面支持状態下で、打ち抜き刃１１を
第３図に示す加熱位置に設定することにより、打ち抜き
刃１１と芯金１３との間にカテーテルｌＯの側壁を挟持
可能とし、打ち抜き刃１１を第３図（Ｃ）に示す打ち抜
き位置に設定することにより、打ち抜き刃１１によって
カテーテル１０の側壁を打ち抜き可能としている。Reference numerals 18 and 19 indicate upper and lower cylinder devices as a punching blade moving device in the present invention. ! 18 allows the punching blade 11 and presser plate 17 on the upper side to move forward and backward relative to the core metal 13, and the lower cylinder device 19 allows the punching blade 11 and presser plate 17 on the lower side to move forward and backward relative to the core metal 13. There is. That is, the cylinder devices 18 and 19 under h are:
By setting the punching blade 11 to the heating position shown in FIG. 3 while the back side is supported by the presser plate 17, the side wall of the catheter IO can be held between the punching blade 11 and the core metal 13, and the punching blade 11 3(C), the side wall of the catheter 10 can be punched out by the punching blade 11.
次に、上記側孔形成装置を用いたカテーテルの製造方法
について説明する。Next, a method for manufacturing a catheter using the above-mentioned side hole forming device will be explained.
まず、第３図（Ａ）に示すように、カテーテルｌＯの内
部に芯金１３を挿入し、カテーテルｌＯの側孔形成側壁
部に打ち抜き刃１１を対向配置するとともにカテーテル
ｌＯの打ち抜き刃１１に対する反対側に押え板１７を対
向配置する。First, as shown in FIG. 3(A), the core bar 13 is inserted into the inside of the catheter 10, and the punching blade 11 is arranged facing the side hole forming side wall of the catheter 10, and the punching blade 11 of the catheter 10 is placed opposite to the punching blade 11. A presser plate 17 is placed facing each other on the side.
続いて、」；下のシリンダ装置１８．１９の作動により
、第３図（Ｂ）に示すように、押え板１７による背面支
持状態下で、打ち抜き刃１１を一定時間だけ加熱位置に
保持し、打ち抜き刃１１と芯。Subsequently, by operating the lower cylinder devices 18 and 19, the punching blade 11 is held at the heating position for a certain period of time while the back is supported by the presser plate 17, as shown in FIG. 3(B). Punching blade 11 and core.
金１３との間にカテーテルｌＯの側孔形成側壁部を挟持
する。この状態で、高周波発振器１６の作動により、打
ち抜き刃１１と芯金１３との間に所定陽極電流値の高周
波電流を所定時間だけ流し、カテーテルｌＯの側孔形成
側壁部を高周波加熱によって軟化溶融状態とする。The side hole forming side wall portion of the catheter IO is sandwiched between the gold 13 and the gold 13. In this state, by operating the high-frequency oscillator 16, a high-frequency current with a predetermined anode current value is passed between the punching blade 11 and the core metal 13 for a predetermined period of time, and the side wall portion of the catheter lO where the side hole is formed is softened and melted by high-frequency heating. shall be.
続いて、上下のシリンダ装置１８．１９の再作動により
、第３図（Ｃ）に示す、ように、押え板１７による背面
支持状態下で、打ち抜き刃１１を打ち抜き位置にまで前
進させ、打ち抜き刃１１と芯金１３との間にカテーテル
１０の側孔形成側壁部をさらに挟圧し、打ち抜き、側孔
２０を開口する。この打ち抜き過程において、カテーテ
ル２０の側孔形成側壁部は所定の軟化溶融状態下で、打
ち抜き刃１１によって打ち抜かれることから、第３図（
Ｄ）に示すように、側孔２０の外面側の周縁部には丸味
２１が形成される。Subsequently, by reactivating the upper and lower cylinder devices 18 and 19, the punching blade 11 is advanced to the punching position with the back supported by the presser plate 17 as shown in FIG. 3(C), and the punching blade The side hole forming side wall portion of the catheter 10 is further compressed between the catheter 11 and the core metal 13 and punched out to open the side hole 20. In this punching process, the side wall portion of the catheter 20 where the side hole is formed is punched out by the punching blade 11 under a predetermined softened and melted state.
As shown in D), a roundness 21 is formed on the outer peripheral edge of the side hole 20.
なお、上記打ち抜き完了時に、打ち抜き刃１１の刃部１
２は芯金１３に当接するものの、芯金１３の導体１４は
絶縁体１５によって覆われていることから、打ち抜き刃
１１の刃部１２と芯金１３との間にスパークを生ずるこ
とがなく、打ち抜き刃１１の刃部１２が溶損することは
ない、但し、高周波発振器１６がスパーク発生防止装置
を備えているものであれば、打ち抜き刃１１の刃部１２
と芯金１３の導体１４とを直接的に当接させても、両者
の間にスパークの発生がなく、従って、この場合には、
芯金１３の導体１４を絶縁体１５によって覆う必要はな
い。In addition, when the above-mentioned punching is completed, the blade part 1 of the punching blade 11
2 comes into contact with the core metal 13, but since the conductor 14 of the core metal 13 is covered with the insulator 15, no spark is generated between the blade portion 12 of the punching blade 11 and the core metal 13. The blade portion 12 of the punching blade 11 will not be damaged by melting. However, if the high frequency oscillator 16 is equipped with a spark generation prevention device, the blade portion 12 of the punching blade 11 will not be damaged.
Even if the conductor 14 of the core bar 13 is brought into direct contact with the conductor 14, no spark is generated between the two, so in this case,
It is not necessary to cover the conductor 14 of the core bar 13 with the insulator 15.
また、打ち抜き完了時に、第３図（Ｃ）に示すように、
カテーテル１０の側孔打ち抜き片２２が、打ち抜き刃１
１の内部に残留するものの、この側孔打ち抜き片２２は
打ち抜き刃１１の内部に供給される圧力空気等を用いれ
ば排除可能であり、好ましい。Also, when punching is completed, as shown in Figure 3 (C),
The side hole punching piece 22 of the catheter 10 is the punching blade 1
Although this side hole punched piece 22 remains inside the punching blade 1, it can be removed by using pressurized air or the like supplied to the inside of the punching blade 11, which is preferable.
また、上記一実施例においては、打ち抜き刃１１を陽極
、芯金１３の導体１４を陰極とする場合について説明し
たが、芯金１３の導体１４を陽極、打ち抜き刃１１を陰
極とするものであってもよい。また、芯金１３の全体を
絶縁体によって形成し、相対する打ち抜き刃１１と押え
板１７の一方を陽極、他方を陰極とするものであっても
よい。Further, in the above embodiment, a case has been described in which the punching blade 11 is used as an anode and the conductor 14 of the core metal 13 is used as a cathode. It's okay. Alternatively, the entire core metal 13 may be formed of an insulator, and one of the opposing punching blade 11 and presser plate 17 may be used as an anode and the other as a cathode.
また、上記実施例においては押え板１７を用いるものと
して説明してか１本発明は必ずしも押え板１７を用いる
ことなく、打ち抜き刃１１が上下のシリンダ装置１８．
１９の作動下でカテーテル１１に加える押圧力を、芯金
１３によって支持するものとしてもよい、また、第４図
に示すように、カテーテル１０の略反対側の２位置に一
対の打ち抜き刃１１を配置するとともに、カテーテル１
１の内部に芯金１３を挿入配置し、両打ち抜き刃１０を
陽極、芯金１３の導体１４を陰極とするものであっても
よい。Further, although the above embodiment has been described using the presser plate 17, the present invention does not necessarily use the presser plate 17, and the punching blade 11 is connected to the upper and lower cylinder devices 18.
The pressing force applied to the catheter 11 under the operation of the catheter 19 may be supported by the core metal 13.Alternatively, as shown in FIG. In addition to placing the catheter 1
1, the punching blades 10 may be used as an anode, and the conductor 14 of the core 13 may be used as a cathode.
また、上記実施例においては、側孔形成用部材として打
ち抜き刃１１を用いたので、側孔２０にばりを生ずるこ
とがない、しかしながら、本発明のカテーテルの製造方
法にあっては、側孔形成用部材に必ずしも刃部を設ける
ことなく、高周波加熱したカテーテルの側孔形成側壁部
を例えば円柱状の側孔形成力部材によって単に貫通する
ことにより、側孔を形成するものであって゛もよい。Further, in the above embodiment, since the punching blade 11 is used as the member for forming the side hole, burrs are not generated in the side hole 20. However, in the method for manufacturing a catheter of the present invention, the side hole is formed The side hole may be formed by simply penetrating the side hole forming side wall portion of the high-frequency heated catheter with a cylindrical side hole forming force member, for example, without necessarily providing a blade portion in the member.
■発明の具体的作用
上記実施例によれば、カテーテルｌＯの側孔形成側壁部
を高周波加熱によっである程度軟化溶融した状態下で打
ち抜くことにより、丸味を帯びてなる側孔２０の形成機
構を単純化し、該側孔２０を迅速かつ容易に形成するこ
とが可能となる。∎Specific Effects of the Invention According to the above embodiment, the side hole 20 is formed with a rounded shape by punching out the side hole forming side wall portion of the catheter IO in a state where it has been softened and melted to some extent by high frequency heating. This simplifies the process and allows the side hole 20 to be formed quickly and easily.
このようにして得られるカテーテルｌＯは例えば第５図
に示すように、患者２３の腹腔２４に挿入、留置して、
体液の排出に供された後、抜去される。The catheter IO obtained in this way is inserted and left in the abdominal cavity 24 of the patient 23, as shown in FIG. 5, for example.
After being used to drain body fluids, it is removed.
しかして、上記カテーテル１０にあっては、体液を吸引
するための側孔２０の外面側の周縁部に丸味２１が形成
されていることから、カテーテルｌＯの腹腔２４への挿
入、留置、抜去時に、側孔２０が組織に損傷を与えたり
、体液の円滑な流れを妨げることがなく、また、側孔２
０の部分に閉塞、血液の凝固を生ずることがない。In the above-mentioned catheter 10, since the roundness 21 is formed on the outer peripheral edge of the side hole 20 for aspirating body fluids, when the catheter 10 is inserted into the abdominal cavity 24, indwelled, and withdrawn, , the side hole 20 does not damage tissues or impede the smooth flow of body fluids;
There is no occlusion or blood coagulation in the 0 part.
上記カテーテルｌＯにおいて、吸引調節孔をも本発明の
方法および装置によって形成するものとすれば、吸引調
節孔を閉止、開孔する術者の指に孔周縁部の引っ掛りに
よる違和感を与えることがない。In the above catheter IO, if the suction adjustment hole is also formed by the method and device of the present invention, the finger of the operator who closes or opens the suction adjustment hole can be prevented from getting caught in the periphery of the hole, causing discomfort. do not have.
なお、本発明の方法および装置は二重管、三重管等の多
重管カテーテルにも適用可能である。また１本発明が適
用されるカテーテルは、その側壁内にＸ線造影ラインを
備えるものであってもよい。Note that the method and device of the present invention can also be applied to multi-tube catheters such as double-tube and triple-tube catheters. Furthermore, a catheter to which the present invention is applied may be provided with an X-ray contrast line within its side wall.
Ｖ１発明の効果
以−Ｌのように、本発明に係るカテーテルの製造方法は
、熱Ｑｆ塑性樹脂からなり側壁に側孔な有するカテーテ
ルの製造方法において、カテーテル本体を成形後、カテ
ーテルの外面に当接する側孔形成用部材とカテーテルの
内面に当接する芯金とによってカテーテルの側壁を挟持
し、Ｆ記側孔形成用部材と芯金とによって高周波を供給
し、カテーテルの側壁を高周波加熱させ、上記側孔形成
用部材によってカテーテルの側壁を貫通させることによ
り、外面に対して丸味を帯びて開口する側孔を形成する
工程を有するようにしたものである。Effects of the V1 Invention As shown in L, the method for manufacturing a catheter according to the present invention is a method for manufacturing a catheter made of a thermal Qf plastic resin and having a side hole in the side wall. The side wall of the catheter is held between the contacting side hole forming member and the core metal that contacts the inner surface of the catheter, and high frequency waves are supplied by the side hole forming member F and the core metal to heat the side wall of the catheter with high frequency, and the above-mentioned The method includes a step of forming a side hole having a rounded opening to the outer surface by penetrating the side wall of the catheter with a side hole forming member.
従って、丸味を帯びてなる側孔を有するカテーテルを容
易に製造することが可能となる。Therefore, it is possible to easily manufacture a catheter having a rounded side hole.
また、本発明に係るカテーテルの製造方法は、前記側孔
形成用部材が打ち抜き刃であって、さらに前記カテーテ
ルの側壁を高周波加熱させ、上記側孔形成用部材によっ
てカテーテルの側壁を貫通させる工程が、カテーテル側
壁を高周波加熱させた後、上記打ち抜き刃によって、カ
テーテルの側壁を打ち抜く工程であるようにしたもので
ある。Further, in the method for manufacturing a catheter according to the present invention, the side hole forming member is a punching blade, and further includes the step of heating the side wall of the catheter with high frequency and causing the side hole forming member to penetrate the side wall of the catheter. , after the side wall of the catheter is heated with high frequency, the side wall of the catheter is punched out using the punching blade.
従って、上記側孔をばりを生ずることなく形成可能とな
る。Therefore, the side holes can be formed without creating burrs.
また、本発明に係るカテーテルの製造方法は、前記カテ
ーテルの側壁を高周波加熱させ、上記側孔形成用部材に
よってカテーテルの側壁を貫通させる工程が、カテーテ
ルの側壁を高周波加熱させながら、側孔形成用部材を芯
金方向に進めてカテーテル側壁を貫通させるようにした
ものである。Further, in the method for manufacturing a catheter according to the present invention, the step of heating the side wall of the catheter with high frequency and allowing the side hole forming member to penetrate the side wall of the catheter is performed while heating the side wall of the catheter with high frequency. The member is advanced in the direction of the core bar and penetrates the side wall of the catheter.
また１本発明に係るカテーテルの製造方法は、前記高周
波電流が打ち抜き刃と芯金との間に流されるようにした
ものである。従って、上記側孔を確実に形成可能となる
。Further, in a method for manufacturing a catheter according to the present invention, the high frequency current is passed between a punching blade and a metal core. Therefore, the side hole can be reliably formed.
また、本発明に係るカテーテルの側孔形成装置は、カテ
ーテルの外面に当接する打ち抜き刃と、カテーテルの内
面にわ接する芯金と、カテーテルの側壁に高周波電流を
流す高周波発振器と、打ち抜き刃を芯金に対して進退さ
せる打ち抜き刃移動装置とを有してなり、打ち抜き刃移
動装置の作動により、打ち抜き刃と芯金との間にカテー
テルの側壁を挟持し、カテーテルの側壁を高周波加熱し
た後、打ち抜き刃によってカテーテルの側壁を打ち抜き
、外面に対して丸味を帯びて開口する側孔を形成するよ
うにしたものである。従って、丸味を帯びてなる側孔を
迅速かつ容易に形成することが可能となる。Further, the catheter side hole forming device according to the present invention includes a punching blade that contacts the outer surface of the catheter, a core metal that contacts the inner surface of the catheter, a high-frequency oscillator that flows a high-frequency current through the side wall of the catheter, and a punching blade that contacts the core of the catheter. and a punching blade moving device that moves forward and backward with respect to the metal, and by the operation of the punching blade moving device, the side wall of the catheter is sandwiched between the punching blade and the core metal, and after the side wall of the catheter is heated with high frequency, The side wall of the catheter is punched out using a punching blade to form a side hole that opens rounded to the outer surface. Therefore, it becomes possible to quickly and easily form a rounded side hole.
また、本発明に係るカテーテルの側孔形成装置は、前記
芯金を、導体の両側に絶縁体を接合することによって形
成し、打ち抜き刃と芯金の導体のそれぞれを高周波電流
を流すための電極とすることにより、丸味を帯びてなる
側孔を迅速、容易かつ確実に形成することが可能となる
。Further, in the side hole forming device for a catheter according to the present invention, the core metal is formed by bonding insulators on both sides of the conductor, and the punching blade and the conductor of the core metal are each connected to an electrode for passing a high-frequency current. By doing so, it becomes possible to form a rounded side hole quickly, easily and reliably.
第１図は一般的なカテーテルを示す断面図、第２図は本
発明の一実施例に係る側孔形成装置を示す構成図、第３
図（Ａ）〜（Ｄ）は本発明の一実施例に係る側孔形成方
法を示す工程図、第４図は本発明の変形例を示す断面図
、第５図は本発明の実施によって得られるカテーテルの
使用状態を示す側面図である。
ｌＯ・・・カテーテル、ｌｌ・・・打ち抜き刃、１３・
・・芯金、１４・・・導体、１５・・・絶縁体、１６・
・・高周波発振器、１８．１９・・・シリンダ装置、２
０・・・側孔、２１・・・丸味。
特許出願人 チル千株式会社
代理人 弁理士 塩 川 修 冶FIG. 1 is a sectional view showing a general catheter, FIG. 2 is a configuration diagram showing a side hole forming device according to an embodiment of the present invention, and FIG.
Figures (A) to (D) are process diagrams showing a side hole forming method according to an embodiment of the present invention, Figure 4 is a sectional view showing a modified example of the present invention, and Figure 5 is a process diagram showing a method for forming a side hole according to an embodiment of the present invention. FIG. 3 is a side view showing the state in which the catheter is used. lO...catheter, ll...punching blade, 13.
...Core metal, 14...Conductor, 15...Insulator, 16.
...High frequency oscillator, 18.19...Cylinder device, 2
0...side hole, 21...roundness. Patent applicant Chirusen Co., Ltd. Agent Patent attorney Osamu Shiokawa
Claims (6)
テルの製造方法において、カテーテル本体を成形後、カ
テーテルの外面に当接する側孔形成用部材とカテーテル
の内面に当接する芯金とによってカテーテルの側壁を挟
持し、上記側孔形成用部材と芯金とによって高周波を供
給し、カテーテルの側壁を高周波力ａ熟させ、上記側孔
形成用部材によってカテーテルの側壁を貫通させること
により、外面に対して丸味を帯びて開口する側孔を形成
する工程を有することを特徴とするカテーテルの製造方
法。(1) In a method for manufacturing a catheter made of thermoplastic resin and having a side hole in the side wall, after the catheter body is molded, the catheter is formed by forming a side hole forming member that contacts the outer surface of the catheter and a core metal that contacts the inner surface of the catheter. The side wall is held between the side walls and the side hole forming member and the metal core are used to supply high frequency waves, the side wall of the catheter is subjected to high frequency force a, and the side wall of the catheter is penetrated by the side hole forming member, so that the outer surface of the catheter is penetrated. A method for manufacturing a catheter, comprising the step of forming a side hole having a rounded opening.
に前記カテーテルの側壁を高周波加熱させ、上記側孔形
成用部材によってカテーテルの側壁を貫通させる工程が
、カテーテル側壁を高周波加熱させた後、上記打ち抜き
刃によって、カテーテルの側壁を打ち抜く工程である特
許請求の範囲第１項記載のカテーテルの製造方法。(2) The side hole forming member is a punching blade, and the step of further heating the side wall of the catheter with high frequency and causing the side hole forming member to penetrate the side wall of the catheter is performed after the side wall of the catheter is heated with high frequency. 2. The method of manufacturing a catheter according to claim 1, further comprising the step of punching out the side wall of the catheter using the punching blade.
孔形成用部材によってカテーテルの側壁を貫通させる工
程が、カテーテルの側壁を高周波加熱させながら、側孔
形成用部材を芯金方向に進めてカテーテル側壁を貫通さ
せる特許請求の範囲第１項記載のカテーテルの製造方法
。(3) The step of heating the side wall of the catheter with high frequency and causing the side hole forming member to penetrate the side wall of the catheter is performed by advancing the side hole forming member toward the core bar while heating the side wall of the catheter with high frequency. A method for manufacturing a catheter according to claim 1, wherein the catheter is made to penetrate through a side wall.
される特許請求の範囲第１項ないし第３項のいずれかに
記載のカテーテルの製造方法。(4) The method for manufacturing a catheter according to any one of claims 1 to 3, wherein the high-frequency current is passed between a punching blade and a metal core.
ーテルの内面に当接する芯金と、カテーテルの側壁に高
周波電流を流す高周波発振器と、打ち抜き刃を芯金に対
して進退させる打ち抜き刃移動装置とを有してなり、打
ち抜き刃移動装置の作動により、打ち抜き刃と芯金との
間にカテーテルの側壁を挟持し、カテーテルの側壁を高
周波加熱した後、打ち抜き刃によってカテーテルの側壁
を打ち抜き、外面に対して丸味を帯びて開口する側孔を
形成するカテーテルの側孔形成装置。(5) A punching blade that contacts the outer surface of the catheter, a core metal that contacts the inner surface of the catheter, a high-frequency oscillator that sends a high-frequency current through the side wall of the catheter, and a punching blade moving device that moves the punching blade back and forth with respect to the core metal. By the operation of the punching blade moving device, the side wall of the catheter is sandwiched between the punching blade and the core metal, the side wall of the catheter is heated with high frequency, and then the side wall of the catheter is punched out by the punching blade, and the outer surface is A side hole forming device for a catheter that forms a side hole that opens in a rounded manner.
、打ち抜き刃と芯金の導体のそれぞれを高周波電流を流
すための電極とする特許請求の範囲第５項に記載のカテ
ーテルの側孔形成装置。(6) The catheter according to claim 5, wherein the metal core is formed by bonding an insulator to both sides of a conductor, and the punching blade and the conductor of the metal core serve as electrodes for flowing high-frequency current. side hole forming device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58171319A JPS6063128A (en) | 1983-09-19 | 1983-09-19 | Method and apparatus for manufacturing chatheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58171319A JPS6063128A (en) | 1983-09-19 | 1983-09-19 | Method and apparatus for manufacturing chatheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6063128A true JPS6063128A (en) | 1985-04-11 |
| JPH0221380B2 JPH0221380B2 (en) | 1990-05-14 |
Family
ID=15921037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58171319A Granted JPS6063128A (en) | 1983-09-19 | 1983-09-19 | Method and apparatus for manufacturing chatheter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6063128A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006020650A1 (en) * | 2004-08-09 | 2006-02-23 | Teleflex Medical, Inc. | Tooling apparatuses and processes for providing precision shapes in medical catheters |
| DE102018128654A1 (en) | 2018-11-15 | 2020-05-20 | Schaeffler Technologies AG & Co. KG | Hybrid drive train with a second electric machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007083378A (en) * | 2005-09-16 | 2007-04-05 | Gansaa Japan Kk | Paper sheet cutting and separating device |
| DE202008017390U1 (en) * | 2007-06-20 | 2009-08-13 | Unomedical A/S | Catheter and device for making such a catheter |
| EP3184140B1 (en) * | 2015-12-21 | 2021-10-06 | Dentsply IH AB | Catheters with bevelled drainage holes as well as method and device for forming such holes |
-
1983
- 1983-09-19 JP JP58171319A patent/JPS6063128A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006020650A1 (en) * | 2004-08-09 | 2006-02-23 | Teleflex Medical, Inc. | Tooling apparatuses and processes for providing precision shapes in medical catheters |
| DE102018128654A1 (en) | 2018-11-15 | 2020-05-20 | Schaeffler Technologies AG & Co. KG | Hybrid drive train with a second electric machine |
| WO2020098862A1 (en) | 2018-11-15 | 2020-05-22 | Schaeffler Technologies AG & Co. KG | Hybrid drive train having a second electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0221380B2 (en) | 1990-05-14 |
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