Source: https://patents.google.com/patent/EP1541080B1/en
Timestamp: 2020-06-05 09:52:37
Document Index: 592158916

Matched Legal Cases: ['art 112', 'art 112', 'arts 112', 'arts 112', 'arts 112', 'art 112', 'art 112']

EP1541080B1 - Balloon attaching jig of endoscope - Google Patents
Balloon attaching jig of endoscope Download PDF
EP1541080B1
EP1541080B1 EP20040029096 EP04029096A EP1541080B1 EP 1541080 B1 EP1541080 B1 EP 1541080B1 EP 20040029096 EP20040029096 EP 20040029096 EP 04029096 A EP04029096 A EP 04029096A EP 1541080 B1 EP1541080 B1 EP 1541080B1
EP20040029096
EP1541080A1 (en
2003-12-08 Priority to JP2003408845 priority Critical
2003-12-08 Priority to JP2003408845 priority
2004-11-05 Priority to JP2004322792A priority patent/JP3791011B2/en
2004-11-05 Priority to JP2004322792 priority
2004-12-08 Application filed by Fujifilm Corp, SRJ Corp filed Critical Fujifilm Corp
2005-06-15 Publication of EP1541080A1 publication Critical patent/EP1541080A1/en
2013-05-15 Publication of EP1541080B1 publication Critical patent/EP1541080B1/en
238000003780 insertion Methods 0.000 claims description 176
The present invention is directed to a balloon attaching jig for an endoscope in accordance with the preamble of claim 1.
A balloon attaching jig according to the preamble of claim 1 is disclosed in US 2003/0004434 . This document describes a catheter system having a disposable balloon which is releasably attached to two sleeves and mounted on a carrier by means of which the balloon can be slidably moved from the carrier onto the catheter. Thereafter, the sleeves are removed. The sleeves are slit along their complete axial length, therefore having the same properties with respect to compressibility and expandability along the overall axial length.
However, the method described in the Japanese Patent Application Publication No. 9-308605 had the problem that the mounting work itself cannot be simplified because it is necessary to add the work of screwing the fastener into the mounting fixture main body and loosening the fastener.
Also, in the method described in the Japanese Patent Application Publication No. 9-308605 , the diameter of the leading end of the mounting fixture main body decreases when the fastener is screwed into the mounting fixture main body, whereas the diameter of the base end of the mounting fixture main body remains to be large. This posed the problem that the work of putting the curved rubber on the mounting fixture main body takes a lot of time and is troublesome. There was also a possibility that the curved rubber put on the base end side might be excessively expanded, resulting in damage to the curved rubber.
To achieve the above-described object the balloon attaching jig according to claim 1 has been provided. In the first aspect of the invention there is provided a balloon attaching jig of an endoscope that is used to attach a balloon to an insertion portion of an endoscope or an insertion aid that aids in insertion of the insertion portion into a body cavity by inserting the insertion portion or the insertion aid into an attaching hole of the balloon, comprising a guide portion that is inserted into the attaching hole of the balloon and into which the insertion portion or the insertion aid is inserted, wherein the diameter of the guide portion can expand and contract freely.
The balloon attaching jig comprising: a ring member having an inside diameter larger than the outside diameter of the insertion portion or the insertion aid, and a plurality of guide pieces that are formed integrally with the ring member or have a base end fixed to the ring member. In this balloon attaching jig, in a state that the guide pieces are inserted into an attaching hole of the balloon, when the insertion portion of the endoscope or the insertion aid is pushed into an opening of the ring member, a diameter formed by the guide pieces is expanded by a pushing-in force generated by pushing-in so that the insertion portion of the endoscope or the insertion aid is inserted into the attaching hole of the balloon.
A plurality of guide pieces of the balloon attaching jig are inserted into an attaching hole of a balloon. At this time, the guide pieces themselves do not have an elastic force large enough to expand the diameter of the attaching hole of the balloon. Therefore, in this state, an inside diameter for insertion formed by the multiple guide pieces is small than the outside diameter of the insertion portion or the insertion aid. In this state, the leading end of the insertion portion or the insertion aid is pushed in from the ring member of the balloon attaching jig and a stronger pushing-in force than before is given to the insertion portion or the insertion aid at a point of time when the leading end of the insertion portion or the insertion aid has come into contact with the guide pieces. The guide pieces are expanded by this pushing-in force so as to expand the diameter thereof and the insertion portion of the endoscope or the insertion aid becomes inserted into the attaching hole of the balloon. As a result of this, the balloon can be easily attached to the insertion portion of the endoscope or the insertion aid.
According to a further aspect of the invention, the balloon attaching jig is made of a tearable material, such as paper and resin film. After the mounting of a balloon on the insertion portion of the endoscope or the insertion aid, the balloon attaching jig is removed from the insertion portion or the insertion aid. In this case, if the balloon attaching jig is made of a material incapable of being torn, after the removal of the guide pieces from the attaching hole of the balloon, this balloon attaching jig must be withdrawn from the insertion portion or the insertion aid by causing the balloon attaching jig to pass by the outer peripheral part of the balloon. If the balloon attaching jig is caught by the balloon during this withdrawal, the balloon made of a thin rubber sheet may sometimes be broken. In contrast, in the second aspect of the invention, after the removal of the guide pieces from the attaching hole of the balloon, the balloon attaching jig is removed from the insertion portion or the insertion aid by being torn. As a result of this, it becomes unnecessary to cause the balloon attaching jig to pass by the outer peripheral part of the balloon and, therefore, it is possible to prevent the balloon from being broken by the balloon attaching jig.
According to a further aspect of the invention, a cut is formed into the balloon attaching jig from an end of a tubular body. By forming a cut in the balloon attaching jig from an end of a tubular body, it is possible to easily tear the balloon attaching jig.
In a further aspect of the invention there is provided a balloon attaching jig of an endoscope that is used to attach a balloon to an insertion portion of an endoscope or an insertion aid that aids in insertion of the insertion portion into a body cavity by inserting the insertion portion or the insertion aid into an attaching hole of the balloon, comprising: a ring member having an inside diameter larger than the outside diameter of the insertion portion or the insertion aid, and a plurality of guide pieces that have a base end fixed to the ring member, wherein at least one of the ring member and the guide pieces is formed from an elastic member having a larger restoring force than the balloon. In this balloon attaching jig, when the guide pieces are inserted into the attaching hole of the balloon while the elastic member is being elastically deformed, the elastic member expands the attaching hole of the balloon from inside by the restoring force.
According to this aspect, because at least one of the ring member and the guide pieces is formed from an elastic member, by elastically deforming the elastic member, the leading ends of the multiple guide pieces can be caused to close to each other and it is possible to easily insert the leading ends into the attaching hole of the balloon. Also, by causing the elastic member to be restored, the attaching hole of the balloon can be expanded from inside. Therefore, the insertion portion or the insertion aid can be easily inserted into the attaching hole of the balloon.
Fig. 1 is a perspective view of a balloon attaching jig of an endoscope in an embodiment of the invention;
Fig. 11 is a perspective view of a balloon being mounted on the insertion portion by use of the mounting fixture of Figure 9;
Preferred embodiments of a balloon attaching jig of an endoscope related to the invention will be described below with reference to the accompanying drawings.
The ring member 16 is formed in such a manner that the inside diameter D 1 thereof is a little larger than the outside diameter D3 of the leading end of the insertion portion 14 of Fig. 3 and the leading end of the insertion portion 14 can be inserted into the ring member 16. The balloon attaching jig 10 is made of tearable paper. Furthermore, in order to facilitate the tearing, as shown in Fig. 2, a cut 21 is formed along a somewhat short mountain folding line 17. Incidentally, the material for the balloon attaching jig 10 is not limited to paper, and materials capable of being torn such as resin film can be used.
Next, with this shape kept, as shown in Fig. 4B, the operator inserts the plug portion 18B of the nail portion 18 into the attaching hole 13 of the fixing portion 12A of the balloon 12 and pushes the nail portion 18 into the attaching hole 13 until the full length of the guide portion 18A is inserted into the attaching hole 13. As a result of this, the balloon attaching jig 10 is mounted in the attaching hole 13 of the balloon 12. Incidentally, at this time, the pair of nail members 18 has not elastic force large enough to expand the diameter of the attaching hole 13 of the balloon 12. Therefore, at the stage at which the balloon attaching jig 10 has been mounted in the balloon 12, the inside diameter for insertion formed by the pair of nail members 18 is smaller than the outside diameter D3 of the leading end of the insertion portion 14.
When the balloon 12 is mounted on the leading end of the insertion portion 14, the balloon attaching jig 10 is not necessary anymore. Therefore, the-work of removing the balloon attaching jig 10 from the balloon 12 and the leading end of the insertion portion 14 is then performed. That is, as shown in Fig. 4D, after the extraction of the pair of nail members 18 from the attaching hole 13 of the balloon 12, the balloon attaching jig 10 is torn. As a result of this, it is possible to remove the balloon attaching jig 10 from the balloon 12 and the leading end of the insertion portion 14. Because the balloon attaching jig 10 has the cut 21 formed from the end of the tubular body thereof, the balloon attaching jig 10 is easily torn by tearing the balloon attaching jig 10 from this cut.
Fig. 9 is a perspective view of another balloon attaching jig 110 related to the invention, and Fig. 10 is a plan view of the mounting fixture 110 of Fig 9. Fig. 11 is a perspective view of a balloon 112 being mounted on the insertion portion 114 (of an endoscope) by use of the mounting fixture 110 of Figure 9. Incidentally, in the following embodiment, descriptions will be given of an example in which the balloon 112 is attached to the insertion portion 114. However, the invention is not limited to this and the insertion portion 114 may be mounted on an insertion aid in insertion into a body cavity.
As shown in Fig. 11, the balloon 112 is formed in roughly barreled shape, with both ends being necked, and the balloon 112 has fixing parts (corresponding to attaching holes) 112A at both ends and an inflation part 112B in the middle. The balloon 112 is formed from an elastic body of rubber etc., and formed in such a manner that the inside diameter D2 of the fixing part 112A is smaller than the outside diameter D3 of the insertion portion 114. Therefore, as indicated by the alternate long and two short dashes lines of Fig. 11, when the leading end of the insertion portion 114 is inserted into the balloon 112, the fixing parts 112A of the balloon 112 come into close contact, due to the elastic force thereof, with the outer peripheral surface of the leading end of the insertion portion 114. By winding a thread around the fixing parts 112A or inserting a fixing ring into the fixing parts 112A, the balloon 112 is firmly mounted on the leading end of the insertion portion 114. When air is supplied to the interior of the mounted balloon 112, the inflation part 112B inflates and by sucking the air from the interior, the inflation part 112B sticks to the outer peripheral surface of the leading end of the insertion portion 114. Incidentally, the shape of the balloon 112 is not limited to the above-described example, and for example, a cylindrical balloon or a balloon having only one attaching hole may be used.
A balloon attaching jig (10, 50, 110) for an endoscope, the jig is used to attach a balloon (12, 112) to an insertion portion (14, 114) of the endoscope or an insertion aid, that is adapted to aid in insertion of the insertion portion (14) into a body cavity, by inserting the insertion portion (14) or the insertion aid into an attaching hole (13) of the balloon (12), the jig comprising:
a guide portion (18, 54, 118) adapted to be inserted into the attaching hole (13) of the balloon (12) and adapted to receive the insertion portion (14, 114) or the insertion aid when inserted therein,
wherein the diameter (D1) of the guide portion (18, 54, 118) can expand and contract freely,
characterized in that the guide portion (18, 54, 118) is constituted of a plurality of guide pieces (18, 54 118) that are formed integrally with a ring member (16, 52, 116) or having a base end fixed to the ring member, the ring member (16, 52) having an inside diameter larger than the outside diameter of the insertion portion (14) or the insertion aid, wherein when the insertion portion (14) of the endoscope or the insertion aid is pushed into an opening of the ring member (16, 52), a diameter formed by the guide pieces (18, 54) is expanded by a pushing-in force generated by pushing the insertion portion of the endoscope or the insertion aid into the attachment jig.
The balloon attaching jig (10, 50) according to claim 1, characterized in that the balloon attaching jig (10, 50) is made of a tearable material, such as paper and resin film.
The balloon attaching jig (10, 50) according to claim 2, characterized in that a cut (21, 56) is formed into the balloon attaching jig (10, 50) from an end of a tubular body.
The balloon attaching jig (110) of claim 1,
wherein at least one of the ring member (116) and the guide pieces (118) is formed from an elastic member having a larger restoring force than the balloon, and when the guide pieces (118) are inserted into the attaching hole of the balloon (112) while the elastic member is being elastically deformed, the elastic member expands the attaching hole of the balloon (112) from inside by the restoring force.
The balloon attaching jig according to any one of claims 1 to 4, characterized in that the guide portion (18) includes a pair of nail members formed at an interval of 180 degrees around the ring member (16), each nail member having a guide portion (18A) of a width (W) which is larger than the outside diameter (D3) of the leading end of the insertion portion (14), and the ring member (16) is adapted to be folded before inserting into the attaching hole (13) of the balloon (12) and is adapted to be unfolded after inserting into the attaching hole (13).
The balloon attaching jig according to claim 4, characterized in that the guide portion (54) includes multiple comb-toothed portions formed integrally with the ring member (52).
EP20040029096 2003-12-08 2004-12-08 Balloon attaching jig of endoscope Active EP1541080B1 (en)
JP2003408845 2003-12-08
JP2004322792A JP3791011B2 (en) 2003-12-08 2004-11-05 Balloon mounting jig
JP2004322792 2004-11-05
EP1541080A1 EP1541080A1 (en) 2005-06-15
EP1541080B1 true EP1541080B1 (en) 2013-05-15
ID=34525488
EP20040029096 Active EP1541080B1 (en) 2003-12-08 2004-12-08 Balloon attaching jig of endoscope
US (1) US7591782B2 (en)
EP (1) EP1541080B1 (en)
JP (1) JP3791011B2 (en)
CN (1) CN100394882C (en)
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2004-11-05 JP JP2004322792A patent/JP3791011B2/en active Active
2004-12-06 CN CNB2004100979437A patent/CN100394882C/en active IP Right Grant
2004-12-07 US US11/004,866 patent/US7591782B2/en active Active
2004-12-08 EP EP20040029096 patent/EP1541080B1/en active Active
JP2005193000A (en) 2005-07-21
US7591782B2 (en) 2009-09-22
CN100394882C (en) 2008-06-18
JP3791011B2 (en) 2006-06-28
CN1626028A (en) 2005-06-15
US20050125005A1 (en) 2005-06-09
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2005-09-07 RAP1 Rights of an application transferred
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