WO2024209835A1 - Balloon catheter - Google Patents
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- WO2024209835A1 WO2024209835A1 PCT/JP2024/006883 JP2024006883W WO2024209835A1 WO 2024209835 A1 WO2024209835 A1 WO 2024209835A1 JP 2024006883 W JP2024006883 W JP 2024006883W WO 2024209835 A1 WO2024209835 A1 WO 2024209835A1
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- 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
Definitions
- the present invention relates to a balloon catheter.
- balloon catheters have been known in which a balloon is attached to the tip of an intermittent self-catheterization catheter that can be inserted by the user himself, for placement inside the body (see, for example, Patent Document 1).
- This type of balloon catheter is reusable, and various ideas have been proposed to improve the difficulty of patients inserting the catheter themselves.
- a method has been proposed to make insertion easier by placing a relatively hard curved metal or resin rod called a stylet inside a soft balloon catheter and inserting it into the urethra.
- a stylet in a curved urethra, there is a risk that the stylet will get caught if it is inserted in the wrong direction.
- a balloon catheter has been proposed in which a hard reinforcing material is inserted into the inner cavity of a soft balloon catheter.
- a balloon lumen for draining sterile water to inflate the balloon is formed inside along the extension direction of the catheter. For this reason, when a reinforcing material is placed in the urine discharge lumen, the reinforcing material enters the inner cavity of the urine discharge lumen, reducing the diameter and making it impossible to ensure a sufficient flow path. In this case, the thickness of the catheter also becomes thin for the balloon lumen, raising the risk that it will no longer be able to withstand the strength required for use.
- the present invention aims to solve the problems associated with the conventional technology described above and provide a balloon catheter that is easy to insert even when the flow passage cross section is large.
- the present invention is characterized in that the balloon catheter comprises a first tube with a balloon attached to its outer periphery, a second tube that covers the first tube at a position spaced apart from the balloon, and a third tube that covers the first tube from a position between the balloon and the second tube and also covers the second tube.
- the second tube may be made of a harder material than the first tube and the third tube.
- the third tube may be in contact with the balloon.
- the third tube may be bonded to the balloon.
- the outer periphery of the portion of the third tube that contacts the balloon may be approximately the same length as the outer periphery of the balloon when not inflated.
- the balloon may be formed to have a cylindrical shape when not inflated.
- the first tube may have a urination lumen that communicates with the outside near the tip and a balloon lumen for inflating the balloon formed along the extension direction.
- the urination lumen may have a circular cross section.
- the urination lumen may have a semicircular cross section.
- the balloon may be attached near the tip of the first tube.
- the present invention provides a balloon catheter that is easy to insert even when the flow passage cross section is large.
- FIG. 1 shows a cross-sectional view of a balloon catheter.
- 3A and 3B show schematic cross sections of a first tube;
- FIG. 1 shows a cross-sectional view of a balloon catheter
- FIG. 2 shows a schematic cross-section of a first tube.
- the balloon catheter 10 comprises a first tube 1, a second tube 2, a third tube 3, and a balloon 4.
- the first tube 1 passes through the balloon 4, and the balloon 4 is attached to the outer periphery near the tip by adhesive.
- This first tube 1 has a urination lumen 5 for draining urine formed along the extension direction of the first tube 1.
- the urination lumen 5 is connected to the outside through an opening 6 formed near the tip of the first tube 1, and urine flowing in from the opening 6 is allowed to flow through the urination lumen 5 to the base end side of the balloon catheter 10.
- the first tube 1 also has a balloon lumen 7 formed along the extension direction of the first tube 1 for inflating the balloon 4.
- the balloon lumen 7 is fluidly connected to the inside of the balloon 4, and the balloon 4 is inflated by filling the inside of the balloon 4 with sterile water supplied from the base end side of the balloon catheter 10.
- the urination lumen 5 and the balloon lumen 7 are each formed to have a circular cross section, and the flow path cross section of the urination lumen 5 is formed to be larger than the flow path cross section of the balloon lumen 7.
- the urination lumen 5 has a circular cross section, but as shown in FIG. 2(B), the urination lumen 5 may have a semicircular cross section.
- the second tube 2 is bonded to the outer periphery of the first tube 1 so as to cover the outer periphery of the first tube 1 at a position spaced a distance L from the balloon 4.
- the distance L between the balloon 4 and the second tube 2 is preferably 8 cm or more and 12 cm or less.
- the second tube 2 is made of a material harder than the first tube 1 and the third tube 3, and acts as a reinforcing material.
- the third tube 3 covers the outer periphery of the first tube 1 from a position between the balloon 4 and the second tube 2, and is bonded to the outer periphery of the first tube 1 and the second tube 2 so as to cover the outer periphery of the second tube 2.
- the third tube 3 in this embodiment is attached so as to abut against the balloon 4, and the end of the third tube 3 and the end of the balloon 4 are bonded at the adhesive part 9.
- the third tube 3 is bonded to the first tube 1 from the end that abuts the balloon 4 to the vicinity of the second tube 2, but the portion adjacent to the second tube 2 is not bonded.
- the portion of the third tube 3 that covers the first tube 1 is formed so as to gradually and smoothly expand in diameter from the front of this unbonded portion toward the base end side of the balloon catheter 10, and a gap 8 having a triangular cross section is formed between the third tube 3 and the first tube 1 along the outer periphery of the first tube 1.
- the third tube 3 is formed of a material softer than the second tube 2, so that pain can be reduced when inserting the balloon catheter 10 into the bladder.
- the balloon 4 is formed so as to have a cylindrical shape when not inflated.
- This balloon 4 has approximately the same outer circumferential length as the third tube 3, and has approximately the same contour.
- the balloon 4 is inflated by being filled with sterile water supplied from the balloon lumen 7 of the first tube 1, and expands into a spherical shape centered on the first tube 1, as shown by the dashed line in Figure 1. This allows the balloon catheter 10 to be fixed in the patient's bladder so that the balloon 4 does not get caught and fall out.
- the first tube 1, second tube 2, third tube 3, and balloon 4 in this embodiment are made of silicone rubber, but may also be made of latex, natural rubber, isoprene rubber, thermoplastic resin, such as PVC and urethane rubber, fluororubber, and fluororesin.
- the third tube 3 may also be made of a highly hydrophilic material.
- the third tube 3 and the entire balloon catheter 10 may be coated with a hydrophilic polymeric substance, which is a lubricating material.
- the balloon catheter 10 comprises a first tube 1 with a balloon 4 attached to its outer periphery, a second tube 2 covering the first tube 1 at a position spaced apart from the balloon 4, and a third tube 3 covering the first tube 1 from a position between the balloon 4 and the second tube 2, as well as covering the second tube 2.
- the present invention has been described above based on an embodiment, but the present invention is not limited to this.
- the balloon 4 is attached to the first tube 1, but the present invention is not limited to this.
- the balloon 4 may be attached to the second tube 2 or the third tube 3.
- the balloon catheter 10 is made by combining three separate tubes 1, 2, and 3 so that they pass through each other, but this is not limited to this. Some of the three tubes may be formed by laminating one tube onto the surface of another tube by coating.
- first tube 2 second tube 3: third tube 4: balloon 5: urination lumen 6: opening 7: balloon lumen 8: gap 9: adhesive portion 10: balloon catheter
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Abstract
Description
本発明は、バルーンカテーテルに関する。 The present invention relates to a balloon catheter.
従来、使用者が自ら挿入することができる間欠自己導尿カテーテルの先端に体内に留置するためのバルーンが取り付けられたバルーンカテーテルが知られている（例えば、特許文献１参照）。この種のバルーンカテーテルは、再利用可能であり、カテーテルの挿入に際し、患者自身の挿入し難さを改善させる様々な工夫が提案されていた。 Conventionally, balloon catheters have been known in which a balloon is attached to the tip of an intermittent self-catheterization catheter that can be inserted by the user himself, for placement inside the body (see, for example, Patent Document 1). This type of balloon catheter is reusable, and various ideas have been proposed to improve the difficulty of patients inserting the catheter themselves.
排尿管理を目的とした排尿用のバルーンカテーテルでは、脳血管障害者、脊髄損傷者では薬物の反応が不十分であったり、手の巧緻性が不良であったりするために、カテーテル等の操作が十分にできない使用者も多かった。このため、自身でのカテーテルの挿入及び排尿時において容易に操作することのできる尿道カテーテルが求められていた。 In the case of balloon catheters for urination management, many users with cerebrovascular disorders or spinal cord injuries have difficulty in manipulating the catheter due to insufficient drug response or poor manual dexterity. For this reason, there has been a demand for a urethral catheter that can be easily inserted by the user and easily operated during urination.
また、尿疾患の患者は、自己導尿バルーンカテーテルを使用しており、このバルーンカテーテルは全体が柔らかく、バルーンカテーテルにゼリーを塗って尿道内に挿入している。このとき、特に尿道の球部は屈曲していたり、括約筋が閉まっていたりするため、力を入れて挿入するとバルーンカテーテルがキンクしてしまい、膀胱まで挿入することは難しかった。 In addition, patients with urinary disorders use self-catheterization balloon catheters, which are soft in all directions and are coated with jelly before being inserted into the urethra. At this time, the bulb of the urethra is particularly curved and the sphincter is closed, so if force is applied when inserting the balloon catheter, it kinks and it is difficult to insert it into the bladder.
このような挿入の困難性を解消するために、スタイレットと呼ばれる曲線形状の金属または樹脂の比較的硬めの棒を柔らかいバルーンカテーテル内に入れて尿道に挿入することで、挿入を容易にする方法が提案されている。しかしながら、屈曲した尿道では、スタイレットの挿入方向を間違えるとスタイレットが引っ掛かってしまう恐れがあった。 To overcome this difficulty in insertion, a method has been proposed to make insertion easier by placing a relatively hard curved metal or resin rod called a stylet inside a soft balloon catheter and inserting it into the urethra. However, in a curved urethra, there is a risk that the stylet will get caught if it is inserted in the wrong direction.
さらに、挿入の困難性を解消するために、軟質のバルーンカテーテルの内腔内に硬質の補強材を挿入したバルーンカテーテルが提案されている。 Furthermore, to eliminate the difficulty of insertion, a balloon catheter has been proposed in which a hard reinforcing material is inserted into the inner cavity of a soft balloon catheter.
しかしながら、上記従来の技術によるバルーンカテーテルでは、尿を流すための尿排出用のルーメン（内腔）の他にバルーンを膨らませる滅菌水を流すためのバルーン用のルーメンがカテーテルの延在方向に沿って内部に形成されている。このため、尿排出用のルーメンに補強材を入れる場合、尿排出用のルーメンの内腔に補強材が入るので径が小さくなり十分な流路を確保できない。このとき、バルーン用のルーメンもカテーテルの肉厚が薄くなってしまい、使用上の強度に耐えられなくなる恐れがあった。 However, in the balloon catheters using the above-mentioned conventional technology, in addition to the urine discharge lumen (inner cavity) for draining urine, a balloon lumen for draining sterile water to inflate the balloon is formed inside along the extension direction of the catheter. For this reason, when a reinforcing material is placed in the urine discharge lumen, the reinforcing material enters the inner cavity of the urine discharge lumen, reducing the diameter and making it impossible to ensure a sufficient flow path. In this case, the thickness of the catheter also becomes thin for the balloon lumen, raising the risk that it will no longer be able to withstand the strength required for use.
本発明は、上記従来の技術による課題を解消し、流路断面が大きくても挿入が容易なバルーンカテーテルを提供することを目的とする。 The present invention aims to solve the problems associated with the conventional technology described above and provide a balloon catheter that is easy to insert even when the flow passage cross section is large.
本発明は、バルーンカテーテルにおいて、バルーンが外周に取り付けられた第１のチューブと、前記バルーンに対して間隔を開けた位置で前記第１のチューブを被覆する第２のチューブと、前記バルーンと前記第２のチューブとの間の位置から前記第１のチューブを被覆するとともに、前記第２のチューブを被覆する第３のチューブとを備えたことを特徴とする。 The present invention is characterized in that the balloon catheter comprises a first tube with a balloon attached to its outer periphery, a second tube that covers the first tube at a position spaced apart from the balloon, and a third tube that covers the first tube from a position between the balloon and the second tube and also covers the second tube.
この場合において、前記第２のチューブは、前記第１のチューブ及び前記第３のチューブよりも硬い材料で形成されていてもよい。前記第３のチューブは、前記バルーンと当接してもよい。前記第３のチューブは、前記バルーンに接着されていてもよい。前記第３のチューブの前記バルーンと接触する部分の外周は、非膨張時の前記バルーンの外周と略同じ長さであってもよい。前記バルーンは、非膨張時に円筒形状になるように形成されていてもよい。前記第１のチューブは、先端近傍で外部に連通する排尿用ルーメンと、前記バルーンを膨らませるためのバルーン用ルーメンとが延在方向に沿って形成されていてもよい。前記排尿用ルーメンは、円形断面を有していてもよい。前記排尿用ルーメンは、半円形断面を有していてもよい。前記バルーンは、前記第１のチューブの先端近傍に取り付けられていてもよい。 In this case, the second tube may be made of a harder material than the first tube and the third tube. The third tube may be in contact with the balloon. The third tube may be bonded to the balloon. The outer periphery of the portion of the third tube that contacts the balloon may be approximately the same length as the outer periphery of the balloon when not inflated. The balloon may be formed to have a cylindrical shape when not inflated. The first tube may have a urination lumen that communicates with the outside near the tip and a balloon lumen for inflating the balloon formed along the extension direction. The urination lumen may have a circular cross section. The urination lumen may have a semicircular cross section. The balloon may be attached near the tip of the first tube.
本発明では、流路断面が大きくても挿入が容易なバルーンカテーテルを提供することができる。 The present invention provides a balloon catheter that is easy to insert even when the flow passage cross section is large.
以下、本発明の一実施形態に係るバルーンカテーテルについて、図面を用いて説明する。
図１は、バルーンカテーテルの断面図を示し、図２は、第１のチューブの断面を模式的に示す。
Hereinafter, a balloon catheter according to one embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a cross-sectional view of a balloon catheter, and FIG. 2 shows a schematic cross-section of a first tube.
バルーンカテーテル１０は、図１に示すように、第１のチューブ１と、第２のチューブ２と、第３のチューブ３と、バルーン４とを備えている。 As shown in FIG. 1, the balloon catheter 10 comprises a first tube 1, a second tube 2, a third tube 3, and a balloon 4.
第１のチューブ１は、バルーン４を貫通しており、バルーン４が接着により先端近傍の外周に取り付けられている。この第１のチューブ１は、尿を流すための排尿用ルーメン５が第１のチューブ１の延在方向に沿って形成されている。排尿用ルーメン５は、第１のチューブ１の先端近傍に形成された開口６で外部に連通しており、開口６から流入した尿を排尿用ルーメン５を通してバルーンカテーテル１０の基端側に流すようになっている。 The first tube 1 passes through the balloon 4, and the balloon 4 is attached to the outer periphery near the tip by adhesive. This first tube 1 has a urination lumen 5 for draining urine formed along the extension direction of the first tube 1. The urination lumen 5 is connected to the outside through an opening 6 formed near the tip of the first tube 1, and urine flowing in from the opening 6 is allowed to flow through the urination lumen 5 to the base end side of the balloon catheter 10.
また、第１のチューブ１は、バルーン４を膨らませるためのバルーン用ルーメン７が第１のチューブ１の延在方向に沿って形成されている。バルーン用ルーメン７は、バルーン４内に流体的に連通しており、バルーンカテーテル１０の基端側から供給された滅菌水をバルーン４内に充填させることによりバルーン４を膨張させるようになっている。 The first tube 1 also has a balloon lumen 7 formed along the extension direction of the first tube 1 for inflating the balloon 4. The balloon lumen 7 is fluidly connected to the inside of the balloon 4, and the balloon 4 is inflated by filling the inside of the balloon 4 with sterile water supplied from the base end side of the balloon catheter 10.
排尿用ルーメン５及びバルーン用ルーメン７は、図２（Ａ）に示すように、それぞれ円形断面を有するように形成されており、排尿用ルーメン５の流路断面はバルーン用ルーメン７の流路断面よりも大きく形成されている。なお、本実施形態では円形断面を有する排尿用ルーメン５を用いているが、図２（Ｂ）に示すように、排尿用ルーメン５は、半円形断面を有していてもよい。 As shown in FIG. 2(A), the urination lumen 5 and the balloon lumen 7 are each formed to have a circular cross section, and the flow path cross section of the urination lumen 5 is formed to be larger than the flow path cross section of the balloon lumen 7. Note that in this embodiment, the urination lumen 5 has a circular cross section, but as shown in FIG. 2(B), the urination lumen 5 may have a semicircular cross section.
第２のチューブ２は、図１に示すように、バルーン４に対して距離Ｌだけ間隔を開けた位置で第１のチューブ１の外周を被覆するように第１のチューブ１の外周に接着されている。バルーン４と第２のチューブ２との間隔の距離Ｌは、好ましくは８ｃｍ以上１２ｃｍ以下である。第２のチューブ２は、第１のチューブ１及び第３のチューブ３よりも硬質の材料で形成されて補強材として作用するようになっている。 As shown in FIG. 1, the second tube 2 is bonded to the outer periphery of the first tube 1 so as to cover the outer periphery of the first tube 1 at a position spaced a distance L from the balloon 4. The distance L between the balloon 4 and the second tube 2 is preferably 8 cm or more and 12 cm or less. The second tube 2 is made of a material harder than the first tube 1 and the third tube 3, and acts as a reinforcing material.
第３のチューブ３は、バルーン４と第２のチューブ２との間の位置から第１のチューブ１の外周を被覆するとともに、第２のチューブ２の外周を被覆するように第１のチューブ１及び第２のチューブ２の外周に接着されている。本実施形態に係る第３のチューブ３は、バルーン４と当接するように取り付けられており、接着部９で第３のチューブ３の端部とバルーン４の端部とが接着されている。 The third tube 3 covers the outer periphery of the first tube 1 from a position between the balloon 4 and the second tube 2, and is bonded to the outer periphery of the first tube 1 and the second tube 2 so as to cover the outer periphery of the second tube 2. The third tube 3 in this embodiment is attached so as to abut against the balloon 4, and the end of the third tube 3 and the end of the balloon 4 are bonded at the adhesive part 9.
第３のチューブ３は、バルーン４に当接する端部から第２のチューブ２の近傍まで第１のチューブ１と接着されているが、第２のチューブ２に隣接する部分は接着されていない。第３のチューブ３の第１のチューブ１を被覆している部分は、この接着されていない部分の手前からバルーンカテーテル１０の基端側に向けて徐々に滑らかに拡径するように形成されており、第３のチューブ３と第１のチューブ１との間には、三角形の断面を有する隙間８が第１のチューブ１の外周に沿って形成されている。これにより、バルーンカテーテル１０は、第２のチューブ２が設けられた部分と第２のチューブ２が設けられていない部分との境界が緩やかなスロープになるとともに曲げ剛性が急激に変化しないようになっている。第３のチューブ３は、第２のチューブ２よりも軟質の材料で形成されているため、バルーンカテーテル１０を膀胱内に挿入する際に苦痛を低減できるようになっている。 The third tube 3 is bonded to the first tube 1 from the end that abuts the balloon 4 to the vicinity of the second tube 2, but the portion adjacent to the second tube 2 is not bonded. The portion of the third tube 3 that covers the first tube 1 is formed so as to gradually and smoothly expand in diameter from the front of this unbonded portion toward the base end side of the balloon catheter 10, and a gap 8 having a triangular cross section is formed between the third tube 3 and the first tube 1 along the outer periphery of the first tube 1. As a result, the boundary between the portion where the second tube 2 is provided and the portion where the second tube 2 is not provided in the balloon catheter 10 has a gentle slope and the bending rigidity does not change suddenly. The third tube 3 is formed of a material softer than the second tube 2, so that pain can be reduced when inserting the balloon catheter 10 into the bladder.
バルーン４は、非膨張時に円筒形状になるように形成されている。このバルーン４は、第３のチューブ３と外周の長さが略同じになっており、略同じ輪郭を有している。バルーン４は、第１のチューブ１のバルーン用ルーメン７から供給される滅菌水が充填されることにより膨張し、図１中に破線で示すように第１のチューブ１を中心とした球形状に膨張する。これにより、バルーンカテーテル１０は、患者の膀胱内にバルーン４が引っ掛かって抜けないように固定されるようになっている。 The balloon 4 is formed so as to have a cylindrical shape when not inflated. This balloon 4 has approximately the same outer circumferential length as the third tube 3, and has approximately the same contour. The balloon 4 is inflated by being filled with sterile water supplied from the balloon lumen 7 of the first tube 1, and expands into a spherical shape centered on the first tube 1, as shown by the dashed line in Figure 1. This allows the balloon catheter 10 to be fixed in the patient's bladder so that the balloon 4 does not get caught and fall out.
本実施形態に係る第１のチューブ１、第２のチューブ２、第３のチューブ３、及びバルーン４は、シリコーンゴムで形成されているが、ラテックス、天然ゴム、イソプレンゴム、熱可塑性樹脂、例えば、ＰＶＣ及びウレタンゴム、フッ素ゴム及びフッ素樹脂等で形成されていてもよい。また、第３のチューブ３は、親水性の高い材料で形成されていてもよい。さらに、例えば、潤滑性材料である親水性高分子物質を、第３のチューブ３やバルーンカテーテル１０の全体にコーティングしていてもよい。 The first tube 1, second tube 2, third tube 3, and balloon 4 in this embodiment are made of silicone rubber, but may also be made of latex, natural rubber, isoprene rubber, thermoplastic resin, such as PVC and urethane rubber, fluororubber, and fluororesin. The third tube 3 may also be made of a highly hydrophilic material. Furthermore, for example, the third tube 3 and the entire balloon catheter 10 may be coated with a hydrophilic polymeric substance, which is a lubricating material.
本実施形態に係るバルーンカテーテル１０は、バルーン４が外周に取り付けられた第１のチューブ１と、バルーン４に対して間隔を開けた位置で第１のチューブ１を被覆する第２のチューブ２と、バルーン４と第２のチューブ２との間の位置から第１のチューブ１を被覆するとともに、第２のチューブ２を被覆する第３のチューブ３とを備えている。これにより、排尿用ルーメン５及びバルーン用ルーメン７の流路断面を小さくしなくても効果的に強度を上げることができ、キンクが生じることを防止することができる。このため、バルーンカテーテル１０は、流路断面が大きくても膀胱内への挿入が容易にすることができる。 The balloon catheter 10 according to this embodiment comprises a first tube 1 with a balloon 4 attached to its outer periphery, a second tube 2 covering the first tube 1 at a position spaced apart from the balloon 4, and a third tube 3 covering the first tube 1 from a position between the balloon 4 and the second tube 2, as well as covering the second tube 2. This effectively increases the strength of the urination lumen 5 and the balloon lumen 7 without reducing their cross-sectional flow paths, and prevents kinking. Therefore, the balloon catheter 10 can be easily inserted into the bladder even if the cross-sectional flow path is large.
以上、実施形態に基づいて本発明を説明してきたが、本発明はこれに限定しない。例えば、上記実施形態では、バルーン４は、第１のチューブ１に取り付けられているが、これに限定されない。バルーン４は、第２のチューブ２や第３のチューブ３に取り付けられていてもよい。 The present invention has been described above based on an embodiment, but the present invention is not limited to this. For example, in the above embodiment, the balloon 4 is attached to the first tube 1, but the present invention is not limited to this. The balloon 4 may be attached to the second tube 2 or the third tube 3.
また、上記実施形態では、３つの別々のチューブ１，２，３を互いに通すように組み合わせてバルーンカテーテル１０を作製しているが、これに限定されない。３つのチューブのいくつかは、１つのチューブの表面上にコーティングにより別のチューブを積層することで形成してもよい。 In the above embodiment, the balloon catheter 10 is made by combining three separate tubes 1, 2, and 3 so that they pass through each other, but this is not limited to this. Some of the three tubes may be formed by laminating one tube onto the surface of another tube by coating.
１…第１のチューブ
２…第２のチューブ
３…第３のチューブ
４…バルーン
５…排尿用ルーメン
６…開口
７…バルーン用ルーメン
８…隙間
９…接着部
１０…バルーンカテーテル
REFERENCE SIGNS LIST 1: first tube 2: second tube 3: third tube 4: balloon 5: urination lumen 6: opening 7: balloon lumen 8: gap 9: adhesive portion 10: balloon catheter
Claims (10)
バルーンが外周に取り付けられた第１のチューブと、
前記バルーンに対して間隔を開けた位置で前記第１のチューブを被覆する第２のチューブと、
前記バルーンと前記第２のチューブとの間の位置から前記第１のチューブを被覆するとともに、前記第２のチューブを被覆する第３のチューブとを備えたことを特徴とする、バルーンカテーテル。 In the balloon catheter,
a first tube having a balloon attached thereto;
a second tube covering the first tube at a position spaced from the balloon;
a third tube covering the first tube from a position between the balloon and the second tube and covering the second tube.
2. The balloon catheter according to claim 1, wherein the balloon is attached to the first tube near a tip end thereof.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023061357 | 2023-04-05 | ||
| JP2023-061357 | 2023-04-05 |
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| WO2024209835A1 true WO2024209835A1 (en) | 2024-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2024/006883 WO2024209835A1 (en) | 2023-04-05 | 2024-02-26 | Balloon catheter |
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| WO (1) | WO2024209835A1 (en) |
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|---|---|---|---|---|
| JPH1071208A (en) * | 1996-05-30 | 1998-03-17 | Target Therapeutics Inc | Braided catheter provided with hole on distal side and having torsional resistance |
| JP3049398U (en) * | 1997-11-26 | 1998-06-09 | 富士システムズ株式会社 | Medical balloon catheter |
| JP2003520634A (en) * | 1999-12-27 | 2003-07-08 | ボストン サイエンティフィック リミテッド | Catheter incorporating insert molded hub and method of manufacturing the same |
| JP2004209104A (en) * | 2003-01-07 | 2004-07-29 | Terumo Corp | Balloon catheter and production method of balloon catheter |
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- 2024-02-26 WO PCT/JP2024/006883 patent/WO2024209835A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1071208A (en) * | 1996-05-30 | 1998-03-17 | Target Therapeutics Inc | Braided catheter provided with hole on distal side and having torsional resistance |
| JP3049398U (en) * | 1997-11-26 | 1998-06-09 | 富士システムズ株式会社 | Medical balloon catheter |
| JP2003520634A (en) * | 1999-12-27 | 2003-07-08 | ボストン サイエンティフィック リミテッド | Catheter incorporating insert molded hub and method of manufacturing the same |
| JP2004209104A (en) * | 2003-01-07 | 2004-07-29 | Terumo Corp | Balloon catheter and production method of balloon catheter |
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