JP4010799B2 - Anti-contamination endoscope - Google Patents

Anti-contamination endoscope Download PDF

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Publication number
JP4010799B2
JP4010799B2 JP2001357326A JP2001357326A JP4010799B2 JP 4010799 B2 JP4010799 B2 JP 4010799B2 JP 2001357326 A JP2001357326 A JP 2001357326A JP 2001357326 A JP2001357326 A JP 2001357326A JP 4010799 B2 JP4010799 B2 JP 4010799B2
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JP
Japan
Prior art keywords
distal end
insertion portion
portion
cylindrical cover
endoscope
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.)
Expired - Fee Related
Application number
JP2001357326A
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Japanese (ja)
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JP2003153849A (en
Inventor
輝雄 大内
和之 山本
Original Assignee
ペンタックス株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ペンタックス株式会社 filed Critical ペンタックス株式会社
Priority to JP2001357326A priority Critical patent/JP4010799B2/en
Publication of JP2003153849A publication Critical patent/JP2003153849A/en
Application granted granted Critical
Publication of JP4010799B2 publication Critical patent/JP4010799B2/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

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Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a contamination-preventing endoscope in which an elastic cylindrical cover for preventing an insertion portion from directly contacting a patient's body wall is detachably provided.
[0002]
[Prior art]
In general, an anti-contamination endoscope is configured such that an elastic cylindrical cover for shielding the insertion portion of the endoscope from the outside can be detachably covered on the insertion portion. By replacing every time, infection between patients by the endoscope can be completely prevented.
[0003]
[Problems to be solved by the invention]
Various treatments are performed using an endoscope, but by attaching a balloon that can be inflated and contracted to the distal end of the endoscope itself, it is possible to stop hemorrhage such as esophageal varices or to stop bleeding and perform puncture treatment. In order to prevent the needle tip from moving, the observation distance from the subject is ensured.
[0004]
However, if such a balloon function is to be added to the distal end of the insertion portion of the contamination-preventing endoscope as described above, the balloon must be attached to the cylindrical cover that covers the insertion portion, which complicates the structure. The cost was increased, and it was very uneconomical by disposable.
[0005]
Therefore, the present invention provides a pollution-preventing endoscope capable of adding a balloon function to a cylindrical cover that prevents the insertion portion from directly contacting a patient's body wall so that the cost does not increase even if it is disposable. The purpose is to do.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the contamination-preventing endoscope according to the present invention has an observation window disposed at the distal end of the insertion portion, and a fluid passage conduit communicating with the outside of the insertion portion opens at the distal end of the insertion portion. In a contamination-preventing endoscope provided with a cylindrical cover made of a resilient material that is detachably coated on an insertion portion so as to shield the insertion portion from the outside, the cylindrical cover is disposed near the distal end of the insertion portion. An airtight binding means for airtightly binding to the outer peripheral surface is provided.
[0007]
The airtight binding means may be a fastening ring made of an elastic material that binds the cylindrical cover from the outer surface side to a circumferential groove formed on the outer peripheral surface near the distal end of the insertion portion.
Further, the circumferential groove may be formed in the vicinity of the rear end of the bending portion formed in the vicinity of the distal end of the insertion portion so as to be bendable by remote operation, or may be formed in a position ahead of the bending portion. Good.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 2 shows a state where the cover device 20 is not attached to the endoscope 10.
[0009]
The insertion portion 11 of the endoscope 10 is connected to a distal end of a flexible tube 11a having a length of, for example, about 50 cm to 1.5 m, and a curved portion 11b having a length of, for example, about 5 to 10 cm. The observation window 16 and the like are arranged on the tip end body 11c connected to the.
[0010]
An operation unit 12 in which a device for remotely operating the bending portion 11b is arranged is connected to the proximal end of the insertion portion 11, and the bending portion 11b can be arbitrarily bent as indicated by a two-dot chain line. it can.
[0011]
In addition, a distal end opening 17 of a fluid passage pipe 18 that is inserted through the entire length of the insertion portion 11 is disposed in the distal end main body 11 c, and a proximal end opening 19 is disposed in the operation portion 12.
[0012]
Therefore, by connecting the syringe 50 or the like to the proximal end side opening 19, intake and air supply (or water supply) can be performed from the distal end opening 17 via the fluid passage pipe 18.
[0013]
At the lower end portion of the operation unit 12 to which the base end of the insertion unit 11 is connected, a columnar base locking part 13 is formed to which the cylindrical base 23 of the cover device 20 is detachably engaged.
[0014]
The most part of the cover device 20 is a cylindrical tubular cover 21 which is formed of a resilient material such as silicon rubber and is covered with the insertion portion 11 so as to shield the insertion portion 11 from the outside. is there.
[0015]
The distal end of the cylindrical cover 21 is sealed by a distal end cap 22 that is smoothly fitted to the distal end main body 11c. As a result, the cylindrical cover 21 is in a state where all portions other than the base end opening are closed.
[0016]
At the base end of the cylindrical cover 21, a cylindrical base 23 that is detachable with respect to the base locking portion 13 of the endoscope 10 is attached. The cylindrical base 23 is formed in a cylindrical shape that fits into the base locking portion 13, and a manual screw 24 is screwed into a screw hole formed so as to penetrate the side wall inwardly. The head of the manual screw 24 is formed with a knob that can be manually picked from the outside.
[0017]
Therefore, the cylindrical base 23 is fixed to the base locking part 13 by fitting the cylindrical base 23 to the base locking part 13 and tightening the manual screw 24. When the manual screw 24 is loosened, the cylindrical base 23 is fixed. 23 can be detached from the base locking portion 13.
[0018]
In addition, a circumferential groove 15 that is recessed over the entire circumference is formed at the rear end portion of the curved portion 11b of the endoscope 10, and the cylindrical cover 21 that covers the insertion portion 11 is made of an elastic rubber material. It can be fastened to the circumferential groove 15 by a fastening ring 30 (airtight binding means) made of
[0019]
In FIG. 1, the insertion portion 11 is inserted into the entire cylindrical cover 21, the cylindrical base 23 is put on the base locking portion 13, the manual screw 24 is tightened, and the cylindrical base 23 becomes the base locking portion. 13 shows a state of being locked.
[0020]
In this state, the insertion portion 11 of the endoscope 10 is completely covered with the cover device 20, and suction is performed from the distal end opening 17 before the fastening ring 30 is attached, so that the cover device 20 and the insertion portion 11 can be connected to each other. By making the space between them negative, the cylindrical cover 21 is in close contact with the outer peripheral surface of the insertion portion 11.
[0021]
Then, the fastening ring 30 is elastically extended so as to surround the outer surface of the cylindrical cover 21, and the fastening ring 30 is placed at a position for fastening the circumferential groove 15 formed in the insertion portion 11 as shown in FIG. 1. set.
[0022]
Accordingly, the cylindrical cover 21 is tightly fixed tightly and tightly and tightly to the outer peripheral surface of the insertion portion 11 at the position of the circumferential groove 15, and air (or water supply) is supplied from the distal end opening 17 to the space in the cover device 20. By doing so, as shown by a two-dot chain line, the cylindrical cover 21 swells in a balloon shape laterally at a portion ahead of the fastening ring 30 and returns to its original state when exhausted (or drained).
[0023]
In this way, by simply attaching the fastening ring 30 to the cover device 20, the portion near the tip of the elastic cylindrical cover 21 can be made into an inflatable and inflatable balloon. Treatment such as compression hemostasis can be performed.
[0024]
At the rear end portion of the tip cap 22, claws 22a that engage with and disengage from the grooves 14 formed on the outer peripheral surface of the tip portion main body 11c are formed to protrude inward at several points. The positional displacement of the tip cap 22 with respect to 11c is prevented.
[0025]
FIG. 3 shows a reference example of the present invention. Instead of the tip cap 22 of the first embodiment, the tip portion of the cylindrical cover 21 is formed of a resilient material integrally with the cylindrical portion. The circumferential groove 15 is formed in the vicinity of the connecting portion between the curved portion 11b and the tip end body 11c on the tip side.
[0026]
By doing so, as indicated by a two-dot chain line, the cylindrical cover 21 swells forward in a balloon shape at the most distal end portion of the insertion portion 11 to secure an observation distance from the subject. Is suitable.
[0027]
【The invention's effect】
According to the present invention, in the pollution-preventing endoscope provided with the cylindrical cover made of a resilient material that is detachably covered by the insertion portion so as to shield the insertion portion of the endoscope from the outside, The cylindrical cover itself can be used as a balloon simply by adding an airtight binding means that tightly binds the cylindrical cover to the outer peripheral surface near the distal end of the insertion portion, so the cost increases even if the cylindrical cover is disposable. Therefore, endoscopic treatment using the balloon function can be easily performed.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which a cover device for a contamination-preventing endoscope according to a first embodiment of the present invention is attached to an insertion portion.
FIG. 2 is a side view showing a part of the state in which the cover device of the contamination-preventing endoscope according to the first embodiment of the present invention is not attached to the insertion section.
FIG. 3 is a cross-sectional view of a state in which a cover device for a contamination-preventing endoscope according to a reference example of the present invention is attached to an insertion portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Endoscope 11 Insertion part 11b Bending part 12 Operation part 15 Circumferential groove 16 Observation window 17 Front end opening 18 Fluid passage duct 19 Base end side opening 20 Cover device 21 Cylindrical cover 30 Fastening ring (airtight binding means)

Claims (1)

  1. A fluid bending portion that is bent by remote operation is provided in the vicinity of the distal end of the insertion portion, an observation window is disposed on the distal end surface of the distal end main body connected to the distal end of the bending portion, and is inserted into the insertion portion. The distal end opening of the duct is arranged on the distal end surface of the distal end main body side by side with the observation window, the proximal end opening is disposed outside the proximal end side of the insertion portion, and the insertion portion is shielded from the outside. In the contamination-preventing endoscope provided with a cover device that is detachably covered on the insertion portion as described above,
    The cover device includes a cylindrical cover made of an elastic material that is detachably covered by the insertion portion, and a distal end that seals the distal end of the cylindrical cover and is fitted to the distal end body. With a cap,
    A circumferential ring formed near the rear end of the curved portion is provided with a fastening ring made of a resilient material that elastically binds the cylindrical cover from the outer surface side,
    By sending fluid into the cover device from the tip opening formed on the tip surface of the tip portion main body through the fluid passage conduit, the cylindrical cover swells in a balloon shape in a region surrounding the curved portion. An anti-contamination endoscope characterized in that
JP2001357326A 2001-11-22 2001-11-22 Anti-contamination endoscope Expired - Fee Related JP4010799B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001357326A JP4010799B2 (en) 2001-11-22 2001-11-22 Anti-contamination endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001357326A JP4010799B2 (en) 2001-11-22 2001-11-22 Anti-contamination endoscope

Publications (2)

Publication Number Publication Date
JP2003153849A JP2003153849A (en) 2003-05-27
JP4010799B2 true JP4010799B2 (en) 2007-11-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001357326A Expired - Fee Related JP4010799B2 (en) 2001-11-22 2001-11-22 Anti-contamination endoscope

Country Status (1)

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JP (1) JP4010799B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7635346B2 (en) * 2004-01-09 2009-12-22 G. I. View Ltd. Pressure-propelled system for body lumen
JP4542351B2 (en) * 2004-02-17 2010-09-15 オリンパス株式会社 Endoscope
JP2007319396A (en) * 2006-05-31 2007-12-13 Olympus Medical Systems Corp Endoscope and endoscopic system

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