US3913565A - Guide tube for a treating instrument to be inserted into body cavity - Google Patents

Guide tube for a treating instrument to be inserted into body cavity Download PDF

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Publication number
US3913565A
US3913565A US464141A US46414174A US3913565A US 3913565 A US3913565 A US 3913565A US 464141 A US464141 A US 464141A US 46414174 A US46414174 A US 46414174A US 3913565 A US3913565 A US 3913565A
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United States
Prior art keywords
main body
tube
body cavity
forward end
guide tube
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 - Lifetime
Application number
US464141A
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English (en)
Inventor
Ichizo Kawahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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.)
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Publication date
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00154—Holding or positioning arrangements using guiding arrangements for insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00082—Balloons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/273—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
    • A61B1/2736—Gastroscopes
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0116—Steering means as part of the catheter or advancing means; Markers for positioning self-propelled, e.g. autonomous robots
    • 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
    • A61M25/10—Balloon catheters
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers

Definitions

  • a guide tube for guiding a tubular treating instrument to be inserted into a patients body cavity.
  • Said guide tube includes a tubular, flexible main body.
  • a cuff is attached to said main body in the proximity of .the forward end thereof, and is so 4,Claims, 8 Drawing Figures U.S. Patent Oct. 21, 1975 Sheet10f2 3,913,565
  • This invention relates to the construction of a guide tube for guiding up to a predetermined position of within the body cavity a tubular treating instrument to be inserted into the body cavity, such as an intestinal tube used to sample the intestinal juice or a Miller Abott tube used for the intestinal obstruction.
  • a tube 1 such as an intestinal tube can be relatively easily inserted without using guide means up to the interior of the stomach 2.
  • the insertion of the forward end of the tube 1 into the pars pylorica 3 constitutingthe connecting section of the stomach 2 with the duodenum is accompanied with an extreme operational difficulty and therefore requires a higher level of technique and a longer time.
  • the forward end of the tube 1 has only to be able to be inserted into the pars pylorica 3, it will be possible to feed the tube 1 into the ileum with the aid of the vermicular movement.
  • the insertion of the tube 1 into the pars pylorica requires a higher level of technique and a longer time, and in some cases it is necessaryy to carry out the insertion while it is being observed by the X ray-radiation. Further, even if the vermicular movement is utilized and even if, for example, medicines are used to promote the vermicular movement, the utilization of the vermicular movement alone will require several hours for passing the forward end of the tube 1 through the pars pylon'ca. For this reason, the patient must endure a long restraint and pain until the tube insertion is completed. Particularly, in the case of a patient suffering from the intestinal obstruction, unless he is subjected to urgent treatment, another disease, for example, the peritonitis is accompanied, giving rise to a serious situation to him. i
  • the passage extending from the duodenal cap 4 immediately succeeding the pars pylorica 3 to the downward extending section 5 of the duodenum is in a sharply curved state and said curve does not take place on the same plane but in a three dimensional form.
  • the tube 1 conflicts with the inner walls of the downward extending section 5 of the duodenum and thereby is interrupted from advancing.
  • the direction in which the forward end of the tube 1 is advanced is not determined, so that the tube 1 becomes liable to conflict with the inner walls of said section 5 and therefore becomes difficult to advance.
  • the tube 1 was conventionally obliged to be subjected to the natural advancement by the vermicular movement to some extent, giving rise to the waste of a large length of time and a patients pain in inserting the tube up to the ileum.
  • the general object of the invention is to provide a guide tube for a treating instrument which is designed to eliminate the difficulties accompanying the abovementioned operations in the case of inserting a tubular treating instrument into the body cavity.
  • the guide tube of the invention comprises an elongate, flexible main body which has an inner diameter enough to admit of the insertion of an endoscope, celoscope and body cavity-treating instrument, a cuff (or termed balloon) attached to said main body in the proximity of the forward end thereof and expanded by the operation of air or liquid feed from the base end portion of the main body, and a flexible tube section further extended forwardly from the cuff-attached portion and integrally with the forward end of the main body and formed more flexible than the main body.
  • a cuff or termed balloon
  • a primary object of the invention is to provide a guide tube for permitting a body cavity treating instrument to be readily inserted for an extremely short time up to a predetermined position in the interior of the body cavity.
  • Another object of the invention is to provide a guide tube for a treating instrument capable of being made simple in construction and therefore manufactured inexpensively.
  • FIG. 1 is a view showing the prior art manner in which an intestinal tube is inserted into a body cavity
  • FIG. 2 is a view showing the manner in which a celoscope is inserted into the body cavity
  • FIG. 3 is a view showing the manner in which a guide tube according to the invention is inserted into the body cavity by utilizing the celoscope;
  • FIG. 4 is a partially broken side view of an embodiment of the guide tube according to the invention.
  • FIG. 5 is a partially broken side view of another embodiment of the guide tube according to the invention.
  • FIGS. 6 to 8 are views respectively showing the manner in which the guide tube according to the invention is used.
  • FIG. 4 an elongate guide tube 7 according to the invention is shown partly omitted.
  • Said guide tube 7 has a tubular flexible main body 8, which is constituted by a flexible inner tube 10 and outer tube 11 made of, for example, synthetic resin and a helical winding 9 wound between the both tubes 10 and 11 around the outer periphery of the inner tube 10.
  • Said helical winding 9 is formed of, for example, metal or tough plastic material, and functions as reinforcing means for reinforcing the main body 8 so as to prevent it from being buckled.
  • the inner tube 10 and outer tube 1 1 are further extended forwardly from the forward end portion 8a (the right side of FIG.
  • the main body 8 is elongate as above described, the presence of the helical winding 9 prevents the main body 8 from being deformed in diameter, by the reinforcing function thereof, thereby causing the main body 8 to maintain its cross section of a fixed shape, and in spite of this the main body is maintained flexible.
  • the flexible tube 14 of the celoscope or endoscope 13 and an intestinal tube 15 are inserted into the interior of the main body 8 of the guide tube, and the main body has an inner diameter large enough to facilitate said insertion.
  • an expansible and contractible bag-shaped member 16 termed cuff" or balloon (hereinafter referred to simply as cuff).
  • cuff 16 is secured to the entire outer periphery of the outer tube 11 so as to surround the same, but may be provided partially on the outer periphery of the outer tube 1 1.
  • the interior of the cuff 16 is designed to be supplied with air or liquid through an aperture 17 formed in the outer tube 11, and the cuff 16 is usually in a deformed or contracted state but is designed to be expanded upon the entry of air or liquid.
  • a metallic cap 18 On the base end portion 8b (the left side of FIG. 4) of the main body 8 of the guide tube is mounted a metallic cap 18, which is formed at its center with a tube insertion hole 18a along the axis of the guide tube 7 and with a passage 19 for passing air or liquid therethrough.
  • a mouth piece 20 is mounted on the metallic cap 18 at the openingend portion of said passage 19.
  • Said passage 19 extends to one end of the helical winding 9 and communicates with the interior of the cuff 16 through a helical space 21 formed in the helical winding 9, namely defined by the inner and outer tubes 10 and 11 with the helical winding 9 and then through the aperture 17. Accordingly, when air or liquid is introduced into the passage 19 from the mouth piece 20, the fluid is helically passed through the helical space 21 and introduced from the aperture 17 into the interior of the cuff 16 to cause the cuff 16 to be expanded.
  • FIG. a guide tube according to another embodiment of the invention is shown.
  • Said guide tube has substantially similar construction to that shown in FIG. 4 excepting that the helical winding 9 constituting reinforcing means of the main body 8 of FIG. 4 is replaced with a net-like member 90 in FIG. 5.
  • Said net-like member90 may be made of metal or synthetic resin. Namely said member 90 has only to be formedat least flexible.
  • Said member 90 is disposed between the inner tube and the outer tube 11 as in the case of the reinforcement member of FIG. 4. The air or liquid introduced from the mouth piece into the passage 19 reaches the aperture 17 by passing through the meshes of the net-like member 90 and then enters the cuff 16 through said aperture 17.
  • Said net-like member 90 can be provided in various forms but has only to be flexible and formed with spaces for passing therethrough at least air or liquid from the passage 19 up to the aperture 17.
  • FIG. 2 shows the condition in which the flexible tube 14 of the celoscope or endoscope 13 is sufficiently inserted just up to the jejunum 22.
  • the. guide tube 7 Prior to the insertion of the flexible tube 14 of the celoscope or endoscope 13, the. guide tube 7 according to the invention is beforehand fitted into said flexible tube 14 as shown in FIG. 3.
  • said guide tube 7 is inserted into the body cavity along said tube 14 with said tube 14 taken as a guide, and it is confirmed through observation by, for example, X-ray radiation that the portion of the guide tube 7 on which the cuff 16 is mounted has reached the duodenal cap 4.
  • air is introduced from the mouth piece 20 to expand the cuff 16.
  • the mouth piece 20 is of course positioned outside the patients body. As shown in FIG.
  • the cuff 16 is pressed against the inner walls of the duodenal cap 4 due to its expansion, thereby causing the guide tube 7 to be fixed to its inserted position. After completion of the fluid-entering, the mouth piece 20 is properly sealed in order to maintain the cuff l6 expanded.
  • guide tube 7 is inserted into the body cavity, it can also be inserted thereinto together with the flexible tube 14 of the celoscope or endoscope 13 during the insertion of the same.
  • the guide tube 7 is set to a predetermined position of within the body cavity through said insertion operation. Under this condition, said flexible section 12 of the guide tube 7 is extended up to the downward extending section 5 of the duodenum. Accordingly, the
  • intestinal tube 15 can readily and quickly be inserted.
  • the tube 15 is inserted readily, quickly into the body cavity simply by a weak insertion force.
  • a body cavity-treating instrument having objects to be attained, such as the intestinal tube can beset to a predetermined position in the interior of the body cavity within several to 30 minutes at the longest.
  • the guide tube of the invention can be applied not only to the intestinal tube but also to various body cavity-treating instruments, and it is therefore apparent that the guide tube of the invention is not limited to the use referred to in the preceding embodiments.
  • a guide tube for guiding a body cavity-treating instrument up to a predetermined position in a body cavity comprising:
  • a flexible tubular main body having a forward end and a base end at which the treating instrument is inserted into the main body, said main body including an inner tube, an outer tube having an aperture and a helical winding wound between the inner and outer tubes around the outer periphery of the inner tube;
  • a cuff mounted on said main body in the proximity of the forward end thereof and adapted to be expanded by the entry thereinto of fluid from the base end of the main body first through a space defined by said helical winding with the inner and outer tubes and then through said aperture thereby to be pressed against inner walls of the body cavity to fix the forward end of the guide tube to the interior of the body cavity;
  • a flexible tube section further extended forwardly from the forward end of the main body and formed more flexible than the main body, whereby the forward end of the treating instrument inserted from the base end into the main body is sent forth from said flexible tube section and carried up to the predetermined position in the body cavity.
  • a guide tube for guiding a body cavity-treating instrument up to a predetermined position in a body cavity comprising:
  • a flexible tubular main body having a forward end i from being buckled
  • a cuff mounted on said main body in the proximity of the forward end thereof and adapted to be expanded by the entry thereinto of fluid from the base end of the main body first through the meshes of said net-like member and then through said aperture thereby to be pressed against inner walls of the body cavity to fix the forward end of the guide tube to the interior of the body cavity;
  • a flexible tube section further extended forwardly from the forward end of the main body and formed more flexible than the main body, whereby the forward end of the treating instrument inserted from the base end into the main body is sent forth from said flexible tube section and carried up to the predetermined position in the body cavity.
  • a guide tube for guiding a body cavity-treating instrument up to a predetermined position in a body cavity comprising:
  • a flexible tubular main body having a forward end and a base end at which the treating instrument is inserted into the main body;
  • a cuff mounted on said main body in the proximity of the forward end thereof and adapted to be exapnded by the entry thereinto of fluid from the base end of the main body, so as to be pressed against inner walls of the body cavity thereby to fix the forward end of the guide tube to the interior of the body cavity;
  • a flexible tube section further extended forwardly from the forward end of the main body and formed more flexible than the main body, whereby the forward end of the treating instrument inserted from the base end into the main body is sent forth from said flexible tube section and carried up to the predetermined position in the body cavity;
  • a metallic cap mounted on the base end of the main body and formed with a tube insertion hole for allowing a treating instrument to be inserted into the main body.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Robotics (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Child & Adolescent Psychology (AREA)
  • Endoscopes (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
US464141A 1973-05-18 1974-04-25 Guide tube for a treating instrument to be inserted into body cavity Expired - Lifetime US3913565A (en)

Applications Claiming Priority (1)

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JP48055224A JPS506192A (enrdf_load_stackoverflow) 1973-05-18 1973-05-18

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DE2423160B2 (de) 1977-03-31
DE2423160A1 (de) 1974-11-28
JPS506192A (enrdf_load_stackoverflow) 1975-01-22

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