JP2005230084A - Balloon attaching tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a balloon attaching tool permitting easily attaching a balloon such as an endoscope balloon to an insertion part of an endoscope, or the like. <P>SOLUTION: This balloon attaching tool 24 is for attaching the cylindrical endoscope balloon 19 with openings at both ends to the insertion part 2 of the endoscope 1. Engagement grooves 26 as holders for holding the openings 19a and 19b of the endoscope balloon 19 inserted into an inner cavity of an attaching tool body 25 are formed at both ends of the attaching tool body 25 with the inner cavity to be set on the outside of the insertion part 2 of the endoscope 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an attachment jig for a balloon attached to an endoscope or a treatment instrument that is inserted into a body cavity orally or transanally and observed inside the body cavity.

  As a procedure for inserting a medical endoscope into a deep digestive tract cavity in a body cavity, for example, the small intestine, there are a case where it is inserted orally and a case where it is inserted transanally. In any case, since the intestinal tract is bent flexibly, even if the insertion part of the endoscope is pushed out of the body cavity, the force is not easily transmitted to the distal end part of the insertion part, and it is difficult to insert it deeply. is there.

  Therefore, an endoscope tube is provided at the distal end portion of the endoscope so that the insertion portion of the endoscope can be smoothly inserted into a complicatedly bent intestine, and an overtube (externally inserted into the endoscope insertion portion) A double-balloon endoscope system in which an overtube balloon is provided at the tip of a sliding tube is known (for example, see Patent Document 1).

  This is because after inserting the overtube that serves as a guide when inserting the endoscope insertion portion into the deep part to the deep part of the intestine, the overtube balloon is inflated to fix the overtube balloon to the intestinal tract. In this state, by retracting the overtube, the intestinal tract is bent to insert the endoscope insertion portion deeper.

Also, when the overtube balloon is inflated and the overtube is fixed to the intestinal tract, the balloon is made of a soft material such as latex so as not to place a burden on the intestinal tract and the internal pressure of the balloon is measured. Thus, there is also known one that can control the pressure (see, for example, Patent Documents 2 and 3).
JP 11-290263 A JP 2001-340462 A JP 2002-301019 A

  However, when a user tries to construct an endoscope with a balloon by attaching an endoscope balloon to the distal end of the endoscope insertion portion as necessary, the operation of attaching the endoscope balloon is complicated. There is a problem that mounting workability is poor.

  The present invention has been made paying attention to the above-mentioned circumstances, and its object is to provide a balloon that can easily attach a balloon such as an endoscope balloon to a balloon attachment member such as an endoscope insertion portion. To provide a mounting jig.

  In order to achieve the above object, the present invention provides a balloon attachment jig for attaching a balloon having a cylindrical shape and having openings at both ends to a balloon attachment member. A holding portion capable of holding an opening of a balloon inserted into the lumen of the mounting jig body is provided at both ends of the mounting jig body having a fitting lumen.

  A second aspect of the present invention is characterized in that the balloon attached member of the first aspect is an insertion portion of an endoscope.

  According to a third aspect of the present invention, the holding portion according to the first aspect is provided at an outer peripheral portion at both end portions of the mounting jig body, and the opening of the balloon is folded outwardly and engaged with the balloon body. It is a groove.

  According to a fourth aspect of the present invention, the attachment jig main body according to the first aspect has a suction port that creates a negative pressure between the inner peripheral surface of the attachment jig main body and the outer peripheral surface of the balloon. To do.

  According to a fifth aspect of the present invention, the mounting jig main body according to the first aspect is configured such that the balloon is attached to the inner peripheral surface of the mounting jig main body by applying a negative pressure between the inner peripheral surface of the mounting jig main body and the outer peripheral surface of the balloon. It is characterized by being sealed in a state of being in close contact with.

  6. A cylindrical balloon mounting jig for attaching a balloon having a cylindrical shape having openings at both ends, and provided at both ends of the balloon mounting jig, and inserted into the lumen of the balloon mounting jig A state in which the balloon is in close contact with the inner peripheral surface of the balloon mounting jig with a negative pressure between the holding portion that holds the opening of the balloon and the inner peripheral surface of the balloon mounting jig and the outer peripheral surface of the balloon And a sealing means for holding the balloon set.

  According to the present invention, there is an effect that the user can easily attach the endoscope balloon to the insertion portion or the like of the endoscope.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 4 show a first embodiment, FIG. 1 is a side view of the entire double balloon endoscope, FIG. 2 is a longitudinal side view of a distal end portion of an insertion portion, and FIG. 3 is a balloon mounting jig. A longitudinal side view and FIG.

  As shown in FIGS. 1 and 2, for example, an endoscope 1 for a small intestine has an elongated flexible insertion portion 2, and a bending portion 3 is interposed at a distal end (tip side) of the insertion portion 2. The tip structure portion 4 is provided. An operation unit 5 is provided at the proximal end (base end side) of the insertion unit 2, and an angle operation knob 6 is provided in the operation unit 5. Furthermore, the operation part 5 is connected to a universal cord 8 having a connector 7 at the distal end.

  The insertion portion 2 is provided with a forceps channel, the distal end configuration portion 4 is provided with an observation optical system (not shown) such as an illumination optical system and a solid-state imaging device, and the insertion portion 2 is provided with a forceps channel 9. The channel 9 communicates with the treatment instrument insertion port 10 of the operation unit 5.

  The insertion portion 2 is provided with an endoscope overtube 11 that is extrapolated to the insertion portion 2. An overtube balloon 13 is held at the distal end of the overtube body 12, and a grip is held at the proximal end. A portion 14 is provided. Further, one end of a first air supply tube 15 is connected to the overtube balloon 13, and a connection port 16 connected to an air supply source (not shown) such as an air pump is provided at the other end. Yes.

  A pair of annular grooves 18 a and 18 b for attaching an endoscope balloon 19 to be described later are provided in the circumferential direction on the outer peripheral portion of the distal end constituting portion 4 and the bending portion 3 of the endoscope 1. An endoscopic balloon 19 is fitted and fixed in the annular grooves 18a and 18b using its elasticity.

  The endoscope balloon 19 is an elastic body made of rubber or a synthetic resin material, is formed in a cylindrical shape, and is provided with openings 19a and 19b at both ends thereof. The opening portions 19a and 19b are integrally provided with annular convex portions 20a and 20b that are elastically engaged and fixed to the annular grooves 18a and 18b. That is, the endoscope balloon 19 is mounted by being fitted from the front end portion of the distal end constituting portion 4 of the endoscope 1 in a state of being expanded in the diameter increasing direction by a balloon mounting jig described later.

  Furthermore, an insertion hole 21 that opens inside the endoscope balloon 19 is provided in the distal end configuration portion 4 of the endoscope 1, and a connection tube 22 that protrudes inside the insertion portion 2 is provided in the insertion hole 21. It has been. The connecting tube 22 is connected to the distal end of the air supply conduit 9 inserted in the insertion portion 2. Therefore, the insertion hole 21 is inserted into the universal cord 8 through the operation portion 5 through the air supply conduit 9 and is connected to the air supply connection port 23 provided in the connector 7, and the air supply conduit 9 is exposed to the outside. Does not interfere with the procedure. Further, the air supply connection port 23 provided in the connector 7 of the endoscope 1 is connected to an air supply source (not shown) via an air supply tube (not shown).

  FIG. 3 shows a balloon mounting jig 24, and the mounting jig body 25 is formed of a synthetic resin or a metal material into a cylindrical body having an inner diameter that can be fitted onto the insertion portion 2 of the endoscope 1. An intermediate portion of the mounting jig body 25 is formed in a large diameter portion 25a serving as a grip portion, and a small diameter portion 25b is formed at both ends. A flange portion 25c is formed at both ends of the mounting jig body 25, and an engagement groove 26 as a holding portion is provided inside the flange portion 25c. Further, a suction hole 27 communicating with the inner cavity of the mounting jig body 25 is provided in a part of the large-diameter portion 25a of the mounting jig body 25, and a luer lock-shaped base 28 is provided in the suction hole 27. ing. A syringe is connected to the base 28.

  Therefore, when the endoscope balloon 19 is attached to the insertion portion 2 of the endoscope 1, first, the endoscope balloon 19 is inserted into the lumen of the attachment jig body 25. The openings 19a and 19b at both ends of the endoscope balloon 19 are expanded in the diameter-enlarging direction against the elastic force of the endoscope balloon 19 itself, and then the endoscope balloon 19 is turned outward. The annular protrusions 20 a and 20 b of the balloon 19 are engaged with the engagement grooves 26 of the mounting jig body 25.

  At this time, since the annular convex portions 20a and 20b are brought into close contact with the engagement groove 26 by the elastic force of the endoscope balloon 19, the endoscope balloon 19 is integrated with the mounting jig body 25 and is airtight. . In this state, when vacuum suction is performed from the suction hole 27 using a syringe, a negative pressure is applied between the inner peripheral surface of the mounting jig body 25 and the outer peripheral surface of the endoscope balloon 19, and the endoscope balloon 19 is The attachment jig body 25 is in close contact with the inner peripheral surface.

  Next, the attachment jig body 25 to which the endoscope balloon 19 is closely attached is fitted from the distal end component 4 side of the insertion portion 2 of the endoscope 1, and both end openings of the attachment jig main body 25 are connected to the distal end component 4. The annular groove 18a and the curved groove 3 are positioned in the annular groove 18b. In this state, when the syringe is removed and the space between the inner peripheral surface of the attachment jig body 25 and the outer peripheral surface of the endoscope balloon 19 is released to the atmosphere via the suction hole 27, the endoscope balloon 19 is attached and cured. The tool body 25 is separated from the inner peripheral surface.

  Next, when the annular protrusions 20a and 20b engaged with the engagement groove 26 of the mounting jig body 25 are removed from the engagement groove 26 so as to be turned inside, the annular protrusion 20a becomes the tip component. The four annular grooves 18 a are elastically engaged, and the annular convex portion 20 b is elastically engaged with the annular groove 18 b of the curved portion 3. After the endoscope balloon 19 is mounted on the endoscope 1, the endoscope balloon 19 is separated from the attachment jig body 25, so that the attachment jig body 25 is connected to the distal end component 4 side of the insertion portion 2. Can be extracted from. Since the endoscope balloon 19 is brought into close contact with the annular grooves 18a and 18b by its own elastic force, it can be fixed easily and firmly without providing a fixing member.

  Next, the operation of the double balloon endoscope will be described.

  FIG. 4 shows a procedure for observing the inner wall of the intestinal tract by orally inserting a double balloon endoscope into the small intestine, where a is the esophagus, b is the stomach, and c is the small intestine. First, the overtube main body 12 is inserted into the insertion portion 2 of the endoscope 1 and the endoscope balloon 19 and the overtube balloon 13 are deflated by releasing air.

  Next, as shown in FIG. 4A, the insertion portion 2 of the endoscope 1 is inserted into the body cavity through the patient's mouth, and the bending portion 3 is operated by operating the angle operation knob 6 of the operation portion 5. The insertion part 2 is inserted into the small intestine c through the esophagus a and the stomach b. And when the front-end | tip structure part 4 of the insertion part 2 of the endoscope 1 passes the duodenum, for example, a remote controller etc. are operated and an air supply source is driven.

  Then, as shown in FIG. 4B, when the endoscopic balloon 19 is inflated by supplying air to the endoscopic balloon 19 via the air supply tube, the endoscopic balloon 19 becomes small intestine c. The distal end constituting portion 4 of the endoscope 1 is fixed to the small intestine c. In this state, when the gripping portion 14 of the overtube main body 12 is gripped and the overtube main body 12 is advanced along the insertion portion 2, the distal end of the overtube main body 12 becomes the rear end portion of the endoscope balloon 19. Led up to.

  Next, as shown in FIG. 4C, the remote controller or the like is operated again to supply air from the air supply source to the overtube balloon 13 via the first air supply tube 15. Accordingly, the overtube balloon 13 is inflated and pressed against the inner wall of the small intestine c, and the distal end of the overtube body 12 is fixed. In this state, when the gripping portion 14 of the overtube main body 12 is gripped and the overtube main body 12 is retracted integrally with the insertion portion 2 of the endoscope 1, it is inserted together with the overtube main body 12 by the tensile force. Since the radius of curvature of the portion 2 is large and is in a substantially straight state, it is possible to shorten the small intestine c by removing excessive bending of the small intestine c.

  Next, as shown in FIG. 4D, when the endoscope balloon 19 is deflated by extracting air, the insertion portion 2 of the endoscope 1 is pushed toward the deep portion of the small intestine c. 2 is inserted toward the deep part of the small intestine c while being guided by the overtube body 12.

  And when the front-end | tip structure part 4 of the insertion part 2 of the endoscope 1 advances to the desired position of the small intestine c, as shown in FIG.4 (E), the balloon 19 for endoscopes again through an air supply tube. Then, the endoscope balloon 19 is inflated and the endoscope balloon 19 is pressed against the inner wall of the small intestine c to fix the distal end constituting portion 4.

  In this state, the overtube balloon 13 is deflated by removing the air, and the overtube body 12 is advanced along the insertion portion 2 by grasping the grasping portion 14 of the overtube body 12. Then, when the distal end of the overtube main body 12 reaches the rear end of the endoscope balloon 19, the overtube balloon 13 is expanded again as shown in FIG.

  By repeating this operation, the distal end constituting portion 4 of the endoscope 1 can be inserted to the deep portion of the small intestine c. Further, during the procedure, the overtube main body 12 is frequently advanced and retracted along the insertion portion 2 of the endoscope 1, but the air supply conduit 9 connected to the air supply tube is inserted into the insertion portion 2. The overtube body 12 can be smoothly advanced and retracted, and the air supply line system does not interfere with the procedure.

  FIG. 4 shows a procedure for orally inserting a double balloon endoscope into the small intestine, but basically the same applies when the double balloon endoscope is inserted into the small intestine via the large intestine transanally. It is.

  FIG. 5 shows a second embodiment, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. 5A is a longitudinal side view of the endoscope balloon and the overtube main body, and FIG. 5B is a cross-sectional view taken along the line XX. In the present embodiment, when the maximum outer diameter A of the endoscope balloon 19 mounted on the insertion portion 2 of the endoscope 1 and the inner diameter of the overtube body 12 fitted on the insertion portion 2 are B, B > A. With this configuration, the overtube main body 12 can be inserted and removed even when the endoscope balloon 19 is attached to the insertion portion 2.

  Further, a rib 29 is provided on the inner peripheral surface of the overtube main body 12 over the entire length in the axial direction. Thus, by providing the rib 29 on the inner peripheral surface of the overtube body 12, the frictional resistance between the insertion portion 2 of the endoscope 1 and the overtube body 12 can be reduced, and the operability can be improved.

  FIG. 6 shows a third embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. FIG. 6 is a longitudinal side view of the endoscope balloon and the overtube main body. In the present embodiment, a lubricant liquid supply line 30 and a body fluid suction line 31 are connected to the grip 14 provided at the proximal end of the overtube body 12. The lubricant liquid supply line 30 is connected to a lubricant supply source (not shown), and the body fluid suction line 31 is connected to a body fluid suction source (not shown).

  Therefore, when the insertion portion 2 of the endoscope 1 is inserted into the small intestine c together with the overtube 11, the lubricant is supplied from the lubricant liquid supply line 30 to the lumen of the overtube main body 12 so as to be inserted into the endoscope. The frictional resistance between the one insertion portion 2 and the overtube main body 12 can be reduced, and the relative movement between the insertion portion 2 and the overtube main body 12 can be performed smoothly. Further, by sucking from the body fluid suction conduit 31, body fluid or the like that has entered the lumen of the overtube body 12 can be sucked.

  FIG. 7 shows a fourth embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. FIG. 7 is a longitudinal side view of the balloon mounting jig. The annular projections 20 a and 20 b are in close contact with the engaging groove 26 of the mounting jig body 25 by the elastic force of the endoscope balloon 19. Further, the suction hole 27 is a cap as a sealing means in a state in which a vacuum is sucked from the suction hole 27 and a negative pressure is applied between the inner peripheral surface of the mounting jig body 25 and the outer peripheral surface of the endoscope balloon 19. The balloon set 33 is formed by sealing the endoscope balloon 19 and the attachment jig body 25 together. The balloon set 33 can be sterilized in this state, and can be sold independently as a sterilized balloon set 33.

  When the balloon set 33 is attached to the insertion portion 2 of the endoscope 1, the lumen of the balloon set 33 is fitted from the tip constituting portion 4 side, and both ends of the mounting jig body 25 are opened at both ends of the tip constituting portion 4. Positioning in the annular groove 18a and the annular groove 18b of the bending portion 3 is performed. In this state, when the cap 32 sealing the suction hole 27 is removed and the space between the inner peripheral surface of the mounting jig body 25 and the outer peripheral surface of the endoscope balloon 19 is released to the atmosphere, the endoscope balloon 19 is separated from the inner peripheral surface of the attachment jig body 25 and can be attached to the endoscope 1 similarly to the first embodiment.

  In each of the above-described embodiments, the endoscope balloon 19 to be attached to the insertion portion 2 of the endoscope 1 has been described. However, a balloon attachment treatment for attaching a balloon to a balloon attachment member such as a treatment instrument or an overtube. It can also be applied as a tool.

  According to each of the embodiments, the following configuration is obtained.

  (Appendix 1) A balloon mounting jig for attaching a balloon having a cylindrical shape and having openings at both ends to a balloon mounting member, both ends of the mounting jig body having a lumen that can be fitted over the balloon mounting member. A balloon mounting jig comprising a holding portion for holding the opening of the balloon inserted into the lumen of the mounting jig body.

  (Additional remark 2) The said attachment jig main body is a cylindrical form, and has a large diameter holding part in the intermediate part, The balloon attachment jig of Additional remark 1 characterized by the above-mentioned.

  (Supplementary Note 3) The holding portion is an engagement groove formed in an annular shape on the outer periphery of the attachment jig body, and an annular convex portion formed in the opening of the balloon is engaged therein. The balloon mounting jig described.

  (Appendix 4) A cylindrical balloon mounting jig for mounting a balloon having a cylindrical shape with openings at both ends, and a balloon provided at both ends of the balloon mounting jig and inserted into the lumen of the balloon mounting jig The holding portion for holding the opening, and the inner surface of the balloon mounting jig and the outer peripheral surface of the balloon with a negative pressure so that the balloon is in close contact with the inner peripheral surface of the balloon mounting jig A balloon set comprising a sealing means for holding.

  (Supplementary Note 5) The sealing means includes a suction hole for vacuum suction between the inner peripheral surface of the balloon mounting jig and the outer peripheral surface of the balloon, and a cap that seals the suction hole and maintains a negative pressure state. The balloon set as set forth in appendix 4, characterized in that:

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

1 is an overall side view of a double balloon endoscope showing a first embodiment of the present invention. The vertical side view of the front-end | tip part of the insertion part of the embodiment. The vertical side view of the balloon attachment jig | tool of the embodiment. The same embodiment is shown, (A)-(F) is an operation explanatory view of a double balloon type endoscope. The 2nd Embodiment of this invention is shown, (A) is a longitudinal side view of the balloon for an endoscope and an overtube main body, (B) is sectional drawing which follows XX. The longitudinal section side view of the balloon for endoscopes and the overtube main part which shows the 3rd Embodiment of this invention. The 4th Embodiment of this invention is shown, and the vertical side view of a balloon attachment jig.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Endoscope, 2 ... Insertion part, 3 ... Bending part, 4 ... Tip structure part, 6 ... Operation part, 12 ... Overtube main body, 13 ... Overtube balloon, 19 ... Endoscope balloon, 19a, 19b: opening, 20a, 20b ... annular projection, 24 ... balloon mounting jig, 25 ... mounting jig body, 26 ... engagement groove (holding section)

Claims (6)

A balloon mounting jig for attaching a balloon having a cylindrical shape and openings at both ends to a balloon mounted member,
A holding portion capable of holding the opening of the balloon inserted into the lumen of the mounting jig body is provided at both ends of the mounting jig body having a lumen that can be fitted onto the balloon attachment member. Balloon mounting jig characterized by.   The balloon attachment jig according to claim 1, wherein the balloon attachment member is an insertion portion of an endoscope.   The holding portion is provided on an outer peripheral portion at both ends of the attachment jig main body, and an opening of the balloon is an engagement groove that is folded back and engaged with the balloon main body. Item 2. A balloon mounting jig according to Item 1.   The balloon mounting jig according to claim 1, wherein the mounting jig body has a suction port that creates a negative pressure between the inner peripheral surface of the mounting jig main body and the outer peripheral surface of the balloon. Ingredients.   The mounting jig main body is sealed in a state where the pressure between the inner peripheral surface of the mounting jig main body and the outer peripheral surface of the balloon is negative, and the balloon is in close contact with the inner peripheral surface of the mounting jig main body. The balloon mounting jig according to claim 1. A cylindrical balloon mounting jig for mounting a cylindrical balloon having openings at both ends;
A holding portion that is provided at both ends of the balloon mounting jig and holds the opening of the balloon inserted into the lumen of the balloon mounting jig;
Sealing means for holding the balloon in close contact with the inner peripheral surface of the balloon mounting jig by applying a negative pressure between the inner peripheral surface of the balloon mounting jig and the outer peripheral surface of the balloon;
A balloon set characterized by comprising:

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