JP2004016728A - Ultrasonic diagnostic apparatus - Google Patents

Ultrasonic diagnostic apparatus Download PDF

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Publication number
JP2004016728A
JP2004016728A JP2002180089A JP2002180089A JP2004016728A JP 2004016728 A JP2004016728 A JP 2004016728A JP 2002180089 A JP2002180089 A JP 2002180089A JP 2002180089 A JP2002180089 A JP 2002180089A JP 2004016728 A JP2004016728 A JP 2004016728A
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JP
Japan
Prior art keywords
balloon
fastening
ultrasonic
ultrasonic probe
diagnostic apparatus
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.)
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Application number
JP2002180089A
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Japanese (ja)
Inventor
Kenichi Ohara
大原　健一
Toshiyuki Hashiyama
橋山　俊之
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Pentax Corp
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Pentax Corp
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Filing date
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Priority to JP2002180089A priority Critical patent/JP2004016728A/en
Publication of JP2004016728A publication Critical patent/JP2004016728A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus capable of continuing an examination for obtaining an ultrasonic diagnostic image by keeping a properly swollen state of a balloon even when a quantity of a liquid becomes excessive in the case of feeding the liquid into the baloon for swelling the balloon. <P>SOLUTION: Among two fastening rings 10a and 10b formed in the vicinity of both of front and rear ends of the balloon 10 so as to fasten two circumpherential grooves 8a and 8b formed at a position of a most distal end of an insertion part 1 and at a rear position compared with an ultrasonic probe 5, fastening force of the fastening ring 10b on a rear side with respect to the circumpherential groove 8b at the rear position is set to be smaller than that of the fastening ring 10a on a front side with respect to the circumpherential groove 8a at the position of the most distal end. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、体腔内の超音波断層像を得るための超音波診断装置に関する。
【０００２】
【従来の技術】
超音波診断装置によって体腔内の超音波断層像を得ようとする場合、超音波プローブと被検部との間には一般に少なくとも２〜３ｃｍ程度の間隔をとる必要がある。
【０００３】
また、超音波は液体中は伝わり易いが空気中は伝わり難い特性を有するので、超音波プローブと被検部との間の空間には、超音波伝達性のよい脱気水等の液体を充満させる必要がある。
【０００４】
そこで一般に、超音波診断装置の挿入部先端に配置された超音波プローブを囲むように弾力性のある材料からなる膨縮自在なバルーンを取り付け、バルーン内に脱気水等を送り込んでバルーンを膨らませる構造をとっている。
【０００５】
そのようなバルーンの形状は超音波診断装置の走査方式等によって異なるが、挿入部先端の軸線周りを走査するいわゆるラジアル走査を行うタイプのものでは、バルーンが筒状に形成されてその前後両端付近の各々に締め環が一体に形成されている。
【０００６】
そして、その前後一対の締め環を、超音波プローブが配置された挿入部の最先端位置と超音波プローブより後方位置とに形成された一対の円周溝に弾力的に締め付けた状態に係合させることにより、バルーンが超音波プローブを囲んだ状態に取り付けられるようになっている。
【０００７】
【発明が解決しようとする課題】
そのようにして挿入部の先端部分に取り付けられたバルーンを膨らませるためにバルーン内に脱気水等を送り込む際にその量が過剰になると、図６に示されるように、最先端側の円周溝８ａから前方に前側の締め環１０ａが外れてしまう。
【０００８】
すると、バルーン１０内から脱気水が流出し、バルーン１０が二点鎖線で示される膨らんだ状態から実線で示されるように萎んだ状態になって超音波断層像を得ることができない状態になってしまい、検査をやり直さなければならない。
【０００９】
したがって、バルーン１０に脱気水等を入れ過ぎないようにしなければならないが、バルーン１０の膨らみ状態はある程度感で判断しなければならないので、脱気水の入れ過ぎ操作が行われるのは珍しいことではなく、その度に検査をやり直すのが甚だ煩雑であった。
【００１０】
そこで本発明は、バルーンを膨らませるためにバルーン内に液体を送り込む際にその量が過剰になっても、バルーンが適度に膨らんだ状態を維持して超音波断層像を得るための検査を続行することができる超音波診断装置を提供することを目的とする。
【００１１】
【課題を解決するための手段】
上記の目的を達成するため、本発明の超音波診断装置は、弾力性のある素材によって筒状に形成されたバルーンの前後両端付近に形成された一対の締め環を、超音波プローブが配置された挿入部の最先端位置と超音波プローブより後方位置とに形成された一対の円周溝に弾力的に締め付けた状態に係合させることにより、バルーンが超音波プローブを囲んだ状態に取り付けられ、その状態のバルーン内に液体を送り込んでバルーンを膨らませるための送液路が設けられた超音波診断装置において、二つの円周溝を締め付ける二つの締め環のうち、後方位置の円周溝に対する後側の締め環の締め付け力を、最先端位置の円周溝に対する前側の締め環の締め付け力より小さく設定したものである。
【００１２】
【発明の実施の形態】
図面を参照して本発明の実施例を説明する。
図２は、超音波診断装置である超音波内視鏡を示しており、断面形状が円形の可撓性の挿入部１の先端に連結された先端部本体２に、超音波プローブと光学観察窓等が配置されている。
【００１３】
先端部本体２にはバルーン１０が着脱自在に取り付けられ、そのバルーン１０内に脱気水等の液体を送排水するための送排水管路３が挿入部１内に挿通配置されている。そして、送排水管路３に対して送排水具等を接続するための注水口金３ａが、挿入部１の基端に連結された操作部４に配置されている。
【００１４】
図３は、超音波診断装置である超音波内視鏡の挿入部１の先端部分を示しており、超音波プローブ５は先端部本体２の中間部分を囲む環状に形成されていて、挿入部１の先端部分の軸線の回りに放射状に超音波を発受信するラジアル走査を行うようになっている。
【００１５】
また、挿入部１の先端面には、前方を光学観察するための観察窓６と照明窓７等が並んで配置されていて、超音波診断機能だけでなく内視鏡機能を併有している。
【００１６】
そのようにして略円柱状に形成されている先端部本体２の最先端位置と超音波プローブ５より後方位置には、バルーン１０の前後両端に各々形成された二つの締め環１０ａ，１０ｂを係合させるための二つの円周溝８ａ，８ｂが、超音波プローブ５を間に挟んでその前後位置に各々形成されている。
【００１７】
また、送排水管路３の先端側開口である送排水口９が二つの円周溝８ａ，８ｂの間の位置において先端部本体２の外表面に開口形成されている。この実施例では、送排水口９は後方位置の円周溝８ｂのすぐ前側に隣接して配置されている。
【００１８】
バルーン１０は、例えば弾力性に富む天然ゴム（ラテックス）等の材料によって例えば肉厚０．０５ｍｍ程度の薄肉の筒状に形成されていて、その前後両端のＯリング状の締め環１０ａ，１０ｂは、それらが係合する円周溝８ａ，８ｂより小さな径でバルーン１０と同じ材料でバルーン１０と一体成形されている。
【００１９】
なお、図３と次に示す図４においては、バルーン１０の外面を砂目状に図示してある。また、この実施例のバルーン１０は両端が抜けた樽状の筒状に形成されているが、円筒状等であってもよい。
【００２０】
この実施例のバルーン１０は、先端部本体２に取り付けるにあたり、まず図３に図示されているように、バルーン１０を表裏反転させると共に前後の向きを逆転させ、それから先側の締め環１０ａを二つの円周溝８ａ，８ｂのうち最先端位置の円周溝８ａに弾力的に締め付ける状態に係合させる。
【００２１】
そして、図示されていない取り付け治具等を用いて、後側の締め環１０ｂを後方位置の円周溝８ｂに弾力的に締め付ける状態に係合させることにより、図４に示されるように、バルーン１０が超音波プローブ５を囲む状態に先端部本体２に取り付けられ、送排水口９からバルーン１０内に脱気水を送り込むことにより、図５に示されるようにバルーン１０が膨らむ。ただし、先端部本体２に対するバルーン１０の取り付けはどのような方法で行っても差し支えない。
【００２２】
このように構成された実施例の超音波内視鏡において、二つの円周溝８ａ，８ｂを締め付けるバルーン１０の二つの締め環１０ａ，１０ｂのうち、後方位置の円周溝８ｂに対する後側の締め環１０ｂの締め付け力の方が、最先端位置の円周溝８ａに対する前側の締め環１０ａの締め付け力より小さく設定されている。
【００２３】
そのようにするために、この実施例においては、後側の締め環１０ｂの径を前側の締め環１０ａの径より大きく形成してある。ただし、後側の締め環１０ｂの線径を前側の締め環１０ａの線径より小さく形成すること等で、後側の締め環１０ｂの締め付け力を前側の締め環１０ａより小さく設定してもよい。
【００２４】
そのような構成にしたことにより、送排水口９からバルーン１０内に過剰の脱気水等が送り込まれると、図１に示されるように、前側の締め環１０ａが最先端位置の円周溝８ａから外れずに、後側の締め環１０ｂが後方位置の円周溝８ｂから後方に外れる。
【００２５】
すると、バルーン１０に形状の自由度が発生して患者の体内壁を過剰に圧迫しない状態になるが、後側の締め環１０ｂが挿入部１の外周面を締め付ける状態になるので、締め付け力は後方位置の円周溝８ｂを締め付けた状態よりかえって大きくなる。
【００２６】
したがって、後側の締め環１０ｂのシール機能は維持され、バルーン１０内からの脱気水の漏出はバルーン１０の内圧が上がり過ぎた最初の瞬間以外ほとんど発生せず、バルーン１０が適度に膨らんだ状態を維持して、超音波断層像を得るための検査をそのまま続行することができる。そして、送排水口９からの送排水によってバルーン１０の膨らみ状態を調整することもでき、バルーン１０が前方に外れないので観察窓６の視野が妨げれることもない。
【００２７】
なお、本発明は上記実施例に限定されるものではなく、例えば本発明を光学観察機能のない超音波診断装置に適用しても差し支えない。
【００２８】
【発明の効果】
本発明によれば、挿入部の最先端位置と超音波プローブより後方位置に形成された二つの円周溝を締め付けるようにバルーンの前後両端付近に形成された二つの締め環のうち、後方位置の円周溝に対する後側の締め環の締め付け力を、最先端位置の円周溝に対する前側の締め環の締め付け力より小さく設定したことにより、バルーンを膨らませるためにバルーン内に液体を送り込む際にその量が過剰になっても、後側の締め環が後方位置の円周溝から後方に外れるのでバルーン内に送り込まれている液体がバルーン内からほとんど漏れ出さず、バルーンが適度に膨らんだ状態を維持して超音波断層像を得るための検査をそのまま続行することができる。
【図面の簡単な説明】
【図１】本発明の実施例の超音波内視鏡においてバルーン内に送り込まれる液体が過剰になった状態の側面図（バルーンは断面図）である。
【図２】本発明の実施例の超音波内視鏡の全体構成を示す側面図である。
【図３】本発明の実施例の超音波内視鏡にバルーンが取り付けられる前の状態の側面図（バルーンは半断面図）である。
【図４】本発明の実施例の超音波内視鏡にバルーンが取り付けられた状態の側面図である。
【図５】本発明の実施例の超音波内視鏡取り付けられたバルーンが膨らんだ状態の側面図（バルーンは断面図）である。
【図６】従来の超音波内視鏡においてバルーン内に送り込まれる液体が過剰になった状態の側面図（バルーンは断面図）である。
【符号の説明】
１　挿入部
２　先端部本体
３　送排水管路
５　超音波プローブ
８ａ　最先端位置の円周溝
８ｂ　後方位置の円周溝
９　送排水口
１０　バルーン
１０ａ　前側の締め環
１０ｂ　後側の締め環[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an ultrasonic diagnostic apparatus for obtaining an ultrasonic tomographic image in a body cavity.
[0002]
[Prior art]
When an ultrasonic tomographic image of a body cavity is to be obtained by an ultrasonic diagnostic apparatus, it is generally necessary to provide a gap of at least about 2 to 3 cm between an ultrasonic probe and a test portion.
[0003]
In addition, since the ultrasonic wave has a property of being easily transmitted in a liquid but not easily transmitted in the air, the space between the ultrasonic probe and the test portion is filled with a liquid such as deaerated water having a good ultrasonic transmission property. Need to be done.
[0004]
Therefore, generally, an inflatable balloon made of a resilient material is attached so as to surround the ultrasonic probe arranged at the distal end of the insertion portion of the ultrasonic diagnostic apparatus, and degassed water or the like is sent into the balloon to inflate the balloon. The structure has been adopted.
[0005]
The shape of such a balloon varies depending on the scanning method of the ultrasonic diagnostic apparatus, etc., but in the type of performing a so-called radial scan that scans around the axis of the distal end of the insertion portion, the balloon is formed in a cylindrical shape and near the front and rear ends Are formed integrally with each other.
[0006]
The pair of front and rear fastening rings are elastically fastened to a pair of circumferential grooves formed at the most distal position of the insertion portion where the ultrasonic probe is disposed and at the position behind the ultrasonic probe. By doing so, the balloon can be attached so as to surround the ultrasonic probe.
[0007]
[Problems to be solved by the invention]
When the amount of degassed water or the like is excessively fed into the balloon in order to inflate the balloon attached to the distal end portion of the insertion portion in this manner, as shown in FIG. The front fastening ring 10a is disengaged forward from the circumferential groove 8a.
[0008]
As a result, degassed water flows out of the balloon 10, and the balloon 10 changes from an expanded state indicated by a two-dot chain line to a deflated state indicated by a solid line, so that an ultrasonic tomographic image cannot be obtained. And you have to start over.
[0009]
Therefore, the balloon 10 must not be filled with degassed water or the like too much. However, since the inflated state of the balloon 10 must be judged with a certain feeling, it is rare that the operation of putting the degassed water too much is performed. Rather, it was very complicated to repeat the test every time.
[0010]
Accordingly, the present invention continues the examination for obtaining an ultrasonic tomographic image while maintaining the balloon in an appropriately inflated state even when the amount of liquid is sent into the balloon in order to inflate the balloon, even if the amount becomes excessive. It is an object of the present invention to provide an ultrasonic diagnostic apparatus that can perform the operation.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the ultrasonic diagnostic apparatus of the present invention includes a pair of fastening rings formed near the front and rear ends of a cylindrical balloon formed of an elastic material. The balloon is attached in a state surrounding the ultrasonic probe by elastically engaging the pair of circumferential grooves formed at the leading end position of the inserted portion and the position behind the ultrasonic probe. In an ultrasonic diagnostic apparatus provided with a liquid feed path for feeding a liquid into the balloon in that state and inflating the balloon, a circumferential groove at a rear position among two fastening rings for fastening two circumferential grooves. Is set smaller than the clamping force of the front fastening ring with respect to the circumferential groove at the foremost position.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 2 shows an ultrasonic endoscope which is an ultrasonic diagnostic apparatus. An ultrasonic probe and an optical observation device are mounted on a distal end main body 2 connected to the distal end of a flexible insertion section 1 having a circular cross section. Windows and the like are arranged.
[0013]
A balloon 10 is detachably attached to the distal end body 2, and a water supply / drainage pipe 3 for feeding / draining a liquid such as deaerated water is inserted into the insertion portion 1 in the balloon 10. A water inlet 3 a for connecting a water supply / drainage tool or the like to the water supply / drainage pipe 3 is disposed on the operation unit 4 connected to the base end of the insertion unit 1.
[0014]
FIG. 3 shows a distal end portion of an insertion portion 1 of an ultrasonic endoscope which is an ultrasonic diagnostic apparatus, and an ultrasonic probe 5 is formed in a ring shape surrounding an intermediate portion of the distal end portion main body 2. Radial scanning for transmitting and receiving ultrasonic waves radially around the axis of the distal end portion 1 is performed.
[0015]
An observation window 6 and an illumination window 7 for optically observing the front are arranged side by side on the distal end surface of the insertion section 1, and have not only an ultrasonic diagnostic function but also an endoscope function. I have.
[0016]
Two fastening rings 10a and 10b formed respectively at the front and rear ends of the balloon 10 are provided at the most distal position of the distal end main body 2 and the position behind the ultrasonic probe 5 which are formed in a substantially cylindrical shape. Two circumferential grooves 8a and 8b are formed at front and rear positions with the ultrasonic probe 5 interposed therebetween.
[0017]
Further, a water supply / drainage port 9 which is an opening on the distal end side of the water supply / drainage pipe 3 is formed on the outer surface of the distal end portion main body 2 at a position between the two circumferential grooves 8a and 8b. In this embodiment, the water supply / drain opening 9 is disposed immediately adjacent to the front side of the circumferential groove 8b at the rear position.
[0018]
The balloon 10 is formed of a material such as a natural rubber (latex) having a high elasticity into a thin cylindrical shape having a thickness of, for example, about 0.05 mm, and O-ring-shaped fastening rings 10a and 10b at both front and rear ends thereof are provided. Are formed integrally with the balloon 10 with a smaller diameter than the circumferential grooves 8a and 8b with which they are engaged.
[0019]
In addition, in FIG. 3 and FIG. 4 shown next, the outer surface of the balloon 10 is illustrated in a grain shape. In addition, the balloon 10 of this embodiment is formed in a barrel shape with both ends removed, but may be in a cylindrical shape or the like.
[0020]
When attaching the balloon 10 of this embodiment to the distal end main body 2, first, as shown in FIG. 3, the balloon 10 is turned upside down and the front and back directions are reversed, and then the front fastening ring 10a is turned over. Of the two circumferential grooves 8a and 8b, the circumferential groove 8a is engaged with the circumferential groove 8a at the foremost position so as to be elastically fastened.
[0021]
Then, by using a mounting jig or the like (not shown), the rear tightening ring 10b is engaged with the circumferential groove 8b at the rear position so as to be elastically tightened, as shown in FIG. 10 is attached to the distal end portion main body 2 so as to surround the ultrasonic probe 5, and the balloon 10 is inflated by sending deaerated water into the balloon 10 from the water supply / drain port 9 as shown in FIG. 5. However, the balloon 10 can be attached to the distal end body 2 by any method.
[0022]
In the ultrasonic endoscope of the embodiment configured as described above, of the two fastening rings 10a and 10b of the balloon 10 for fastening the two circumferential grooves 8a and 8b, the rear side of the rear circumferential groove 8b with respect to the circumferential groove 8b. The fastening force of the fastening ring 10b is set to be smaller than the fastening force of the front fastening ring 10a with respect to the circumferential groove 8a at the foremost position.
[0023]
To do so, in this embodiment, the diameter of the rear fastening ring 10b is formed larger than the diameter of the front fastening ring 10a. However, the fastening force of the rear fastening ring 10b may be set smaller than that of the front fastening ring 10a, for example, by forming the wire diameter of the rear fastening ring 10b smaller than the wire diameter of the front fastening ring 10a. .
[0024]
With such a configuration, when excessive degassed water or the like is sent into the balloon 10 from the water supply / drain port 9, as shown in FIG. 8a, the rear fastening ring 10b comes back from the circumferential groove 8b at the rear position.
[0025]
Then, the degree of freedom of the shape of the balloon 10 is generated, and the body wall of the patient is not excessively compressed. However, the rear tightening ring 10b tightens the outer peripheral surface of the insertion portion 1, so that the tightening force is reduced. It is larger than the state where the circumferential groove 8b at the rear position is tightened.
[0026]
Therefore, the sealing function of the rear fastening ring 10b is maintained, and leaking of deaerated water from inside the balloon 10 hardly occurs except for the first moment when the internal pressure of the balloon 10 is excessively increased, and the balloon 10 is inflated appropriately. The inspection for obtaining the ultrasonic tomographic image can be continued as it is while maintaining the state. The state of inflation of the balloon 10 can be adjusted by water supply and drainage from the water supply and drainage port 9, and the balloon 10 does not come off, so that the field of view of the observation window 6 is not obstructed.
[0027]
Note that the present invention is not limited to the above-described embodiment. For example, the present invention may be applied to an ultrasonic diagnostic apparatus without an optical observation function.
[0028]
【The invention's effect】
According to the present invention, the rearmost position of the two fastening rings formed near the front and rear ends of the balloon so as to tighten the two circumferential grooves formed at the most distal position of the insertion portion and the rear position from the ultrasonic probe. When the liquid is fed into the balloon in order to inflate the balloon, the tightening force of the rear tightening ring with respect to the circumferential groove is set smaller than the tightening force of the front tightening ring with respect to the circumferential groove at the foremost position. Even if the amount becomes excessive, the rear locking ring comes off from the circumferential groove at the rear position rearward, so that the liquid sent into the balloon hardly leaks out of the balloon, and the balloon is inflated appropriately. The inspection for obtaining the ultrasonic tomographic image while maintaining the state can be continued as it is.
[Brief description of the drawings]
FIG. 1 is a side view (balloon is a cross-sectional view) of an ultrasonic endoscope according to an embodiment of the present invention in a state where an amount of liquid sent into a balloon is excessive.
FIG. 2 is a side view showing the overall configuration of the ultrasonic endoscope according to the embodiment of the present invention.
FIG. 3 is a side view (a balloon is a half sectional view) of a state before a balloon is attached to the ultrasonic endoscope according to the embodiment of the present invention.
FIG. 4 is a side view showing a state in which a balloon is attached to the ultrasonic endoscope according to the embodiment of the present invention.
FIG. 5 is a side view (balloon is a cross-sectional view) of a state in which the balloon attached to the ultrasonic endoscope according to the embodiment of the present invention is inflated.
FIG. 6 is a side view (the balloon is a cross-sectional view) of a conventional ultrasonic endoscope in a state where the amount of liquid sent into the balloon is excessive.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Insertion part 2 Tip part main body 3 Water supply / drainage pipe line 5 Ultrasonic probe 8a Circumferential groove 8b at the most advanced position Circumferential groove 9 at rear position

Claims (1)

弾力性のある素材によって筒状に形成されたバルーンの前後両端付近に形成された一対の締め環を、超音波プローブが配置された挿入部の最先端位置と上記超音波プローブより後方位置とに形成された一対の円周溝に弾力的に締め付けた状態に係合させることにより、上記バルーンが上記超音波プローブを囲んだ状態に取り付けられ、その状態の上記バルーン内に液体を送り込んで上記バルーンを膨らませるための送液路が設けられた超音波診断装置において、
上記二つの円周溝を締め付ける上記二つの締め環のうち、後方位置の円周溝に対する後側の締め環の締め付け力を、最先端位置の円周溝に対する前側の締め環の締め付け力より小さく設定したことを特徴とする超音波診断装置。A pair of fastening rings formed near the front and rear ends of a balloon formed in a cylindrical shape by an elastic material, at the foremost position of the insertion portion where the ultrasonic probe is arranged and the position behind the ultrasonic probe. The balloon is attached in a state surrounding the ultrasonic probe by being elastically engaged with the pair of circumferential grooves formed, and the balloon is attached in a state surrounding the ultrasonic probe. In an ultrasonic diagnostic apparatus provided with a liquid feed path for inflating
Of the two fastening rings for fastening the two circumferential grooves, the fastening force of the rear fastening ring with respect to the circumferential groove at the rear position is smaller than the fastening force of the front fastening ring with respect to the circumferential groove at the foremost position. An ultrasonic diagnostic apparatus characterized by being set.
JP2002180089A 2002-06-20 2002-06-20 Ultrasonic diagnostic apparatus Withdrawn JP2004016728A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007296054A (en) * 2006-04-28 2007-11-15 Fujinon Corp Endoscope device
JP2017506132A (en) * 2014-02-11 2017-03-02 コーネル ユニヴァーシティー Method and apparatus for manipulating body cavities and / or sidewalls of body cavities to improve their visualization and / or facilitate access to them and / or stabilize devices relative thereto
US10485401B2 (en) 2009-12-15 2019-11-26 Lumendi Ltd. Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US10874286B2 (en) 2009-12-15 2020-12-29 Cornell University Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US10874285B2 (en) 2009-12-15 2020-12-29 Cornell University Method and apparatus for stabilizing, straightening, expanding and/or flattening the side wall of a body lumen and/or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US11076743B2 (en) 2009-12-15 2021-08-03 Lumendi Ltd. Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US11877722B2 (en) 2009-12-15 2024-01-23 Cornell University Method and apparatus for manipulating the side wall of a body lumen or body cavity
US11986150B2 (en) 2009-12-15 2024-05-21 Lumendi Ltd. Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US12022998B2 (en) 2020-11-16 2024-07-02 Lumendi Ltd. Methods and apparatus for inverting a hollow sleeve and thereafter reverting an inverted hollow sleeve

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007296054A (en) * 2006-04-28 2007-11-15 Fujinon Corp Endoscope device
US10485401B2 (en) 2009-12-15 2019-11-26 Lumendi Ltd. Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US10874286B2 (en) 2009-12-15 2020-12-29 Cornell University Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US10874285B2 (en) 2009-12-15 2020-12-29 Cornell University Method and apparatus for stabilizing, straightening, expanding and/or flattening the side wall of a body lumen and/or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US11076743B2 (en) 2009-12-15 2021-08-03 Lumendi Ltd. Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US11877722B2 (en) 2009-12-15 2024-01-23 Cornell University Method and apparatus for manipulating the side wall of a body lumen or body cavity
US11986150B2 (en) 2009-12-15 2024-05-21 Lumendi Ltd. Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
US11998169B2 (en) 2009-12-15 2024-06-04 Lumendi Ltd. Method and apparatus for manipulating the side wall of a body lumen or body cavity so as to provide increased visualization of the same and/or increased access to the same, and/or for stabilizing instruments relative to the same
JP2017506132A (en) * 2014-02-11 2017-03-02 コーネル ユニヴァーシティー Method and apparatus for manipulating body cavities and / or sidewalls of body cavities to improve their visualization and / or facilitate access to them and / or stabilize devices relative thereto
US12022998B2 (en) 2020-11-16 2024-07-02 Lumendi Ltd. Methods and apparatus for inverting a hollow sleeve and thereafter reverting an inverted hollow sleeve

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