JP2003190275A - 外科医療用器具 - Google Patents
外科医療用器具Info
- Publication number
- JP2003190275A JP2003190275A JP2002245271A JP2002245271A JP2003190275A JP 2003190275 A JP2003190275 A JP 2003190275A JP 2002245271 A JP2002245271 A JP 2002245271A JP 2002245271 A JP2002245271 A JP 2002245271A JP 2003190275 A JP2003190275 A JP 2003190275A
- Authority
- JP
- Japan
- Prior art keywords
- surgical instrument
- instrument
- catheter
- shaft
- bubbles
- 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
- 239000000463 material Substances 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 7
- 238000012285 ultrasound imaging Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 abstract description 7
- 229920002635 polyurethane Polymers 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 abstract description 4
- 210000001161 mammalian embryo Anatomy 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000002604 ultrasonography Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- YFYZPVXABJAXSL-UHFFFAOYSA-N 2,3-dinitrosobenzene-1,4-dicarboxamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C(N=O)=C1N=O YFYZPVXABJAXSL-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 101000795655 Canis lupus familiaris Thymic stromal cotransporter homolog Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- -1 azoisobutyronitrile Chemical compound 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002666 chemical blowing agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0833—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures
- A61B8/0841—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures for locating instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B17/425—Gynaecological or obstetrical instruments or methods for reproduction or fertilisation
- A61B17/435—Gynaecological or obstetrical instruments or methods for reproduction or fertilisation for embryo or ova transplantation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/13—Tomography
- A61B8/14—Echo-tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/22—Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations
- A61K49/222—Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations characterised by a special physical form, e.g. emulsions, liposomes
- A61K49/223—Microbubbles, hollow microspheres, free gas bubbles, gas microspheres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
- A61L29/18—Materials at least partially X-ray or laser opaque
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/18—Materials at least partially X-ray or laser opaque
-
- 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
-
- 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
- A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
-
- 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
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3925—Markers, e.g. radio-opaque or breast lesions markers ultrasonic
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/14—Female reproductive, genital organs
- A61M2210/1433—Uterus
-
- 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
Abstract
医療用器具を提案する。 【解決手段】 透明ポリウレタンを押出成型した可撓性
シャフト1を有する胚置換用カテーテルであり、シャフ
ト1は長手方向に延在する孔10を有する。直径5μ〜10μ
の範囲のガスの泡12を、押出成型中にガスを添加するこ
とによりシャフトの壁の厚み方向に導入する。泡12は、
超音波造影中でのカテーテルの可視性を増加させる一方
で、カテーテルに沿って流れる物質を見ることができる
ように選択する。
Description
製の外科医療用器具に関するものである。
うな外科医療用器具に関するものであり、超音波観察に
おいて可視のものである。
を監視するため、治療行為中での使用が増加している。
超音波下での器具の可視性は種々の要因に依存し、この
要因には器具の材料と、この器具を配置した箇所の周囲
の媒体、例えば患者の体内組織や体液との間の音響イン
ピーダンスの違いを含む。この違いは、カテーテルのよ
うなプラスチック製器具が相対的に低く、従来のカテー
テルの配置を困難にしている。ニードルのように器具が
金属製の場合でも、反射の方向性による、超音波観察に
おける前述した可視性の問題点が存在する。ある方向か
らは金属製ニードルは明瞭に見える場合があるが、別の
方向からはほとんど見えない場合がある。
医療用器具の可視性を向上させるための試みがなされて
いる。器具の表面に溝または段を形成するような改良も
行うことができる。国際特許出願公開WO98/19713号およ
び欧州特許第624342号に記載されているように、器具に
泡を含むような反射性の被覆を施すことも可能である。
この他、プラスチック製カテーテルに金属製のマーカー
を固定しても良い。
らに代わる外科医療用器具を提供することにある。
ような外科医療用器具が提供され、この器具は、超音波
造影における当該器具の可視性を増加させるために選択
した、当該器具の少なくとも一部において、材料が、そ
の厚みの大部分を通してガスの泡を含むことを特徴とす
るものである。
前記ガスの泡を器具の周方向全体に亘って設けても良
く、あるいは器具の周方向の一部のみを占める領域に設
けても良い。本器具の外面が滑らかであり、かつ、ガス
の泡によって不連続となっていないこととしても良く、
また、器具が内面を有し、この内面が滑らかであり、か
つ、ガスの泡によって不連続となっていないこととして
も良い。ガスの泡が1μ〜50μの範囲の直径を有し、ほ
ぼ球形としても良い。本器具を押出成型し、ガスの泡を
器具の押出成型中にガスを添加することにより形成する
ことができる。プラスチック材料がほぼ透明であり、か
つ、泡の大きさおよび密度を、器具に沿って通過する物
質が目視で見ることができるように選択することもでき
る。
およびその製造方法を、ここで添付図面を参照して例示
によって説明する。
ルは可撓性シャフト1および、このシャフトの後端部と
結合したハブ2を具える。シャフト1は環状断面を有し、
長手方向に沿って延在する孔10を有する。シャフト1は
前方、右側の患者側端部11で開口し、患者の損傷を防ぐ
ために丸みが付けられている。シャフト1は純粋で透明
なポリウレタン材料から押出成型されるが、ガスを満た
した泡12が取り込まれる。泡の大きさおよび分布は、超
音波診断においてカテーテルの可視性を増大させるよう
に選択される。通常、ガスの泡の直径は約0.1μ〜300μ
の範囲とし、好ましくは1μ〜50μ、より好ましい範囲
は5μ〜10μである。泡12はシャフト1の壁の厚さ全体を
通して拡がり、球状または何らかの規則的な、あるいは
不規則な形状を有する。シャフトの外面13および内面14
は滑らかであり、ガスの泡によって不連続となっていな
い、あるいは泡が表面を破壊していないものが良い。
くものであり、剛性を有する透明なプラスチック材料か
ら成型され、その後シャフトの後端に接着される。
いて押出成型する。ポリウレタン材料21を加熱して、通
常の方法により押出ヘッド22へ供給するが、窒素または
二酸化炭素のようなガスを入口23を通して溶融物中へ加
圧して吹き込む。プラスチックが押出ヘッド22から出て
くると、ガスは泡12を形成するように膨張する。プラス
チックの相対的なガス透過性は、製造後に泡を形成した
ガスが抜け出て空気に置き換わることを意味する。
することができ、ハブ2の取り付けと患者側端部の先端1
1の端面形成以外の後の作業を必要としない。
ロー成型のような他の溶融工程で形成することが可能で
ある。
も形成することができる。例えば化学的な発泡剤をプラ
スチック材料に添加することが可能であり、こうした発
泡剤にはアゾカーボノミド、ジニトロソペントメチレン
−テトラミン、ベンゼンフォノヒドラジン、4,4オキシ
ビス(ベンゼンフォノヒドラジン)、NN1ジメチル−NN
1ジニトロソテレフタルアミド、アゾイソブチロニトリ
ル、炭酸ナトリウム、テレフタルアジドまたはトリヒド
ラジナトラジンなどがある。ガスの泡を形成するもう一
つの方法は、プラスチック溶融物中に液体を注入し、溶
融工程中に揮発させることである。この他、粉末ドライ
アイス(二酸化炭素)を溶融物中に投入することもで
き、それによって、ドライアイスの粒子が成型工程中に
ガスの泡となる。泡は重合中および/または他の架橋工
程中の化学反応の結果として直接形成することも可能で
ある。泡はラテックスフォームの形成に用いる方法のよ
うに、液状のプラスチックを泡立てることにより機械的
に形成することも可能である。泡はまた、樹脂またはガ
ラスの中空の微少球を投入することによっても形成する
ことができる。この他、溶解性の材料の小さな粒子をプ
ラスチック溶融物に添加し、後で溶解して除去すること
も可能である。
生させること無く超音波造影において良好な可視性を得
ることができ、またシャフトの方向に関わらず良好な画
像を形成することができる。シャフトは、カテーテルの
孔に沿って流れる物質を超音波画像で観察することがで
きるように、超音波エネルギーに対して十分透明に製造
することができる。
個のマーカーも必要としないため、成型に続く組立工程
を必要とせず、部品が外れる危険性が無い。本カテーテ
ルは従来型の医療用に認可された材料で製造することが
できるため、患者に対する何らの新たな危険性も存在し
ない。カテーテルの表面は滑らかにすることができるの
で、低摩擦で外側チューブへ挿入または滑入させること
が可能である。カテーテルの滑らかな孔は、この孔に沿
う自由な流れを保証する。このことは本カテーテルを胚
の輸送に用いる場合に重要なものとなり得る。滑らかな
表面はまた、カテーテル上でのバイオフィルムの蓄積を
減少させる。本カテーテルは金属部品を必要とせずに製
造することができ、これは、本カテーテルを用いて磁気
造影技術で患者の観察を行う際に有利なものとなり得
る。本カテーテルはX線に対して完全に透明とすること
が可能であり、あるいは、硫酸バリウムのようなX線を
透過する充填物を組み込んだプラスチックから成型する
ことが可能である。
するプラスチックの光透過性が、シャフトに沿った物質
の流れが目で見た時に見える程度に十分維持されるよう
に選択することができる。
の方法がある。例えば、好ましくは泡を非球状とし、か
つ、長手方向のような特定の方向へ方向付けることがで
きる。これは押出ダイに、このダイを通して流れる泡が
移動を妨げられ、かつ延伸されるような障害物によって
達成することができる。かかる配置は、シャフトを目で
見た際の透明性を減少させるといえども超音波による可
視性の増加を与えることとなる。
ることは本質的なものではない。図4に示すように、泡1
2'をシャフト1'に沿って延在するストライプ40'のよう
に、一つまたはそれ以上のストライプ状にのみ形成する
ことができる。こうした配置は、カテーテル内部の物質
を目で見ることができるようにシャフトの透明度を増加
させる必要がある場合に利用できる。泡の領域はカテー
テルの長さに沿って連続させる必要は無い。その代わり
に、泡を有する離散した個々の領域を、カテーテルの長
さに沿って泡の無い領域によって互いに分離させること
が可能である。こうしたカテーテルのためのシャフト
は、押出機へのガスの流れを遮断することによって作る
ことができる。泡をストライプ中に含ませる場合には、
二つの予備の押出機を用いてストライプの押出成型を行
って不連続部を形成するように遮断を行うことができ、
予備の押出機の一方では吹き込み剤を含む材料を押出成
型し、もう一方では吹き込み剤を含まない材料を押出成
型する。この他、泡を含まない部分によって互いに分離
した泡を含む部分を有するストライプができるように押
出機のスイッチをON-OFFしてもよい。分断された泡領域
を有するカテーテルは、このカテーテルの長さ方向の移
動のより明瞭な超音波表示を与え、カテーテルに沿って
流れる物質の超音波および目視の双方による、より明瞭
な観察を可能とし得るものである。
す側立面図である。
Claims (10)
- 【請求項1】 プラスチック材料製の外科医療用器具
(1,1')であって、 超音波造影における当該装置の可視性を増加させるため
に選択した、当該器具の少なくとも一部において、前記
材料が、その厚みの大部分を通してガスの泡(12,12')を
含むことを特徴とする器具。 - 【請求項2】 請求項1記載の器具において、 該器具(1,1')が管状であることを特徴とする外科医療用
器具。 - 【請求項3】 請求項1または2記載の器具において、 前記ガスの泡(12)を該器具(1)の周方向全体に亘って設
けたことを特徴とする外科医療用器具。 - 【請求項4】 請求項1または2記載の器具において、 前記ガスの泡(12')を該器具(1')の周方向の一部のみを
占める領域(40)に設けたことを特徴とする外科医療用器
具。 - 【請求項5】 請求項1〜4のいずれか1項記載の器具
において、 該器具(1,1')の外面(13)が滑らかであり、かつ、前記ガ
スの泡(12,12')によって不連続となっていないことを特
徴とする外科医療用器具。 - 【請求項6】 請求項1〜5のいずれか1項記載の器具
において、 該器具が内面(14)を有し、この内面が滑らかであり、か
つ、前記ガスの泡(12,12')によって不連続となっていな
いことを特徴とする外科医療用器具。 - 【請求項7】 請求項1〜6のいずれか1項記載の器具
において、 前記ガスの泡(12,12')が1μ〜50μの範囲の直径を有す
ることを特徴とする外科医療用器具。 - 【請求項8】 請求項1〜7のいずれか1項記載の器具
において、 前記ガスの泡(12,12')がほぼ球形であることを特徴とす
る外科医療用器具。 - 【請求項9】 請求項1〜8のいずれか1項記載の器具
において、 該器具(1,1')を押出成型し、前記ガスの泡(12,12')を該
器具の押出成型中にガスを添加することにより形成する
ことを特徴とする外科医療用器具。 - 【請求項10】 請求項1〜9のいずれか1項記載の器
具において、 該器具(1,1')が管状であり、前記プラスチック材料がほ
ぼ透明であり、かつ、前記泡(12,12')の大きさおよび密
度を、該器具に沿って通過する物質が目視で見ることが
できるように選択することを特徴とする外科医療用器
具。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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GB0120645:7 | 2001-08-24 | ||
GBGB0120645.7A GB0120645D0 (en) | 2001-08-24 | 2001-08-24 | Medico-surgical devices |
Publications (2)
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JP2003190275A true JP2003190275A (ja) | 2003-07-08 |
JP4294925B2 JP4294925B2 (ja) | 2009-07-15 |
Family
ID=9920955
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002245271A Expired - Lifetime JP4294925B2 (ja) | 2001-08-24 | 2002-08-26 | 外科医療用器具 |
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---|---|
US (6) | US8092390B2 (ja) |
JP (1) | JP4294925B2 (ja) |
AU (1) | AU2002300529B2 (ja) |
DE (1) | DE10238684A1 (ja) |
FR (1) | FR2828814B1 (ja) |
GB (2) | GB0120645D0 (ja) |
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- 2002-08-19 DE DE10238684A patent/DE10238684A1/de active Pending
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2011
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JP2015536728A (ja) * | 2012-11-23 | 2015-12-24 | スミスズ メディカル インターナショナル リミテッド | アセンブリー及び方法 |
JP2016529958A (ja) * | 2013-07-13 | 2016-09-29 | スミスズ メディカル インターナショナル リミテッド | ニードルアセンブリ及びその製造方法 |
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JP2021510106A (ja) * | 2018-01-05 | 2021-04-15 | ベクトン・ディキンソン・アンド・カンパニーBecton, Dickinson And Company | エコー源性のカテーテルおよびカテーテルシステム |
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US8092390B2 (en) | 2012-01-10 |
US9636082B2 (en) | 2017-05-02 |
US9743904B2 (en) | 2017-08-29 |
US20180064414A1 (en) | 2018-03-08 |
US10478150B2 (en) | 2019-11-19 |
US20030040756A1 (en) | 2003-02-27 |
US20110172488A1 (en) | 2011-07-14 |
GB2379610B (en) | 2005-01-12 |
FR2828814B1 (fr) | 2007-10-05 |
GB0120645D0 (en) | 2001-10-17 |
GB2379610A (en) | 2003-03-19 |
DE10238684A1 (de) | 2003-03-06 |
AU2002300529B2 (en) | 2007-03-01 |
US20130085384A1 (en) | 2013-04-04 |
JP4294925B2 (ja) | 2009-07-15 |
US20200100761A1 (en) | 2020-04-02 |
GB0216145D0 (en) | 2002-08-21 |
US9642591B2 (en) | 2017-05-09 |
US20130144159A1 (en) | 2013-06-06 |
FR2828814A1 (fr) | 2003-02-28 |
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