WO2021101336A2 - Tube d'insertion rectale - Google Patents

Tube d'insertion rectale Download PDF

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Publication number
WO2021101336A2
WO2021101336A2 PCT/KR2020/016522 KR2020016522W WO2021101336A2 WO 2021101336 A2 WO2021101336 A2 WO 2021101336A2 KR 2020016522 W KR2020016522 W KR 2020016522W WO 2021101336 A2 WO2021101336 A2 WO 2021101336A2
Authority
WO
WIPO (PCT)
Prior art keywords
tube
elastic expansion
insertion tube
fluid
rectal insertion
Prior art date
Application number
PCT/KR2020/016522
Other languages
English (en)
Korean (ko)
Other versions
WO2021101336A3 (fr
Inventor
주상규
박원
Original Assignee
사회복지법인 삼성생명공익재단
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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Application filed by 사회복지법인 삼성생명공익재단 filed Critical 사회복지법인 삼성생명공익재단
Publication of WO2021101336A2 publication Critical patent/WO2021101336A2/fr
Publication of WO2021101336A3 publication Critical patent/WO2021101336A3/fr

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Classifications

    • 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
    • A61M25/1002—Balloon catheters characterised by balloon shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/04—Macromolecular materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A61L29/18—Materials at least partially X-ray or laser opaque
    • 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
    • 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
    • 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
    • A61M25/10—Balloon catheters
    • A61M25/1018—Balloon inflating or inflation-control devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1086—Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/1042—Alimentary tract
    • A61M2210/1064—Large intestine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details
    • A61N2005/1094—Shielding, protecting against radiation

Definitions

  • Embodiments of the present invention relate to a rectal insertion tube, and more particularly, to a rectal insertion tube that can be inserted into the rectum to inflate the rectum in order to prevent exposure of the rectum to radiation during radiation treatment of prostate cancer.
  • Radiation therapy which is widely used in the modern medical field, is also importantly used in the treatment of prostate cancer.
  • irradiation with radiation to the prostate may cause damage such as exposure or melting of the rectum.
  • the balloon in order for the balloon to be fixedly formed to a specified size when air is completely injected into the balloon, the balloon had to be originally (ie, uniquely) manufactured to have the specified size. In this case, even if air is removed from the balloon, the surface of the balloon is crushed, but the surface of the balloon is not in close contact with the catheter, so there is a problem of causing pain to the patient when inserted into the rectum. For example, in the conventional balloon catheter, even if the air from the balloon is removed, the distorted balloon is rolled up and inserted into the rectum.
  • the present invention has been conceived to solve the above problems, and it is an object of the present invention to provide a rectal insertion tube in which the entire inner surface of the elastic expansion unit can be in close contact with the tube when fluid is removed from the elastic expansion unit. do.
  • Rectal insertion tube a tube through which a fluid can be injected through one end and a hole formed in the other side; And an elastic expansion part that covers the side surface of the tube while covering the hole, and has an upper end and a lower end adhered to the side surface of the tube, wherein the elastic expansion part includes an inner surface of the elastic expansion part on the side surface of the tube.
  • the elastically expandable part has a structure in which a first thickness and a second thickness are periodically repeated along an axial direction of the tube, and the second thickness may be greater than the first thickness.
  • the outer surface of the elastic expansion portion is flat, and may have the first thickness and the second thickness such that irregularities are formed in the inner surface direction of the elastic expansion portion.
  • a band having the second thickness may be formed in parallel along the circumferential direction of the tube to form the elastically expanded portion.
  • the hole may be formed in a central region between an upper adhesive portion and a lower adhesive portion, which are regions to which the elastic expansion portion and the tube are adhered.
  • the expanded uppermost part of the elastically expanded part expands upwardly than the lower boundary of the upper adhesion part, and the lowermost part of the expanded elastically expanded part is It may expand further downward than the upper boundary of the lower adhesive portion.
  • the elastic expansion unit when a fluid having a specified volume is injected into the elastic expansion unit, the elastic expansion unit expands to have a specified specification, and the specified specification may include a longitudinal length and a transverse diameter.
  • the number of holes may be at least one, and the at least one hole may be formed only on one side of the tube.
  • upper and lower portions of the elastic expansion unit maintain contact with the tube, and the central portion of the elastic expansion unit may start to expand first.
  • the expansion when fluid is further injected through the one end, the expansion may move upward and downward from the center of the elastic expansion part.
  • the center of the elastically expanded part when a fluid is injected into the elastically expanded part, the center of the elastically expanded part may be stretched more than the upper and lower parts of the elastically expanded part.
  • the material of the elastic expansion part may include silicon rubber.
  • the material of the tube includes silicone rubber, and the tube may be flexible.
  • the fluid may include a liquid and a gas.
  • a marker positioned at the top of the tube and capable of being identified with respect to radiation may further include.
  • the marker may include a high-density liquid having high radiation attenuation.
  • the marker may include BaSO 4.
  • the marker may be made of a material compatible with MRI.
  • the entire inner surface of the elastic expansion unit may be in close contact with the tube, so that the patient's pain can be reduced during rectal insertion.
  • the elastically expanded part when a fluid is injected into the elastically expanded part to expand the elastically expanded part, the elastically expanded part can always have a shape of a predetermined standard, so that it can be safely used for patients with reproducibility.
  • FIG. 1 shows a state (S1) in which the fluid is removed from the rectal insertion tube 100 according to an embodiment of the present invention.
  • FIG. 2 shows a state in which a fluid is injected into the rectal insertion tube 100 shown in FIG. 1 (S2).
  • FIG. 3 is an enlarged view of a state in which the elastic expansion part 10 of the rectal insertion tube 100 shown in FIG. 1 is expanded (S2).
  • FIG. 4 schematically shows a part of the cross-section of the elastically expanded portion 10 according to an embodiment of the present invention.
  • FIG. 5 to 8 show a process in which a fluid is injected into the elastic expansion part 10 of the rectal insertion tube 100 shown in FIG. 1.
  • FIG. 9 is a view showing a cross-section of the fluid injection unit 30 of the rectal insertion tube 100.
  • a region, a sub, a component, etc. when it is said that a region, a sub, a component, etc. are connected, not only are the regions, subs, and components directly connected, but also other regions, subs, and components are interposed between the regions, subs, and components. It also includes the case of being connected indirectly.
  • FIG. 1 shows a state (S1) in which the fluid is removed from the rectal insertion tube 100 according to an embodiment of the present invention.
  • FIG. 2 shows a state in which a fluid is injected into the rectal insertion tube 100 shown in FIG. 1 (S2).
  • 3 is an enlarged view of a state in which the elastic expansion part 10 of the rectal insertion tube 100 shown in FIG. 1 is expanded (S2).
  • the rectal insertion tube 100 includes a tube 20, an elastic expansion unit 10, and a fluid injection unit 30.
  • the fluid injection part 30 is formed at one end (eg, a lower end) of the tube 20 to inject a fluid into the tube 20.
  • the fluid injection part 30 may be connected or coupled to one end of the tube 20.
  • the fluid injection unit 30 may be located at the lower end of the tube 20 that is exposed to the outside of a living body when the rectal insertion tube 100 is inserted into the rectum.
  • the fluid injection part 30 may include at least one opening 31 to inject a fluid into the tube 20, and a through hole connected to the opening 31 is formed inside the fluid injection part 30 In addition, the through hole may be connected to a through hole formed in the tube 20.
  • a separate fluid injection device may be mounted in at least one opening 31 formed in the fluid injection part 30.
  • Separate fluid injection devices may include, for example, a syringe or pump.
  • At least one opening 31 may have a structure that is normally closed but opens when a separate fluid injection device is mounted.
  • the fluid injection unit 30 is illustrated as a 1 way injection structure, but the present invention is not limited thereto, and for example, a 2 way injection structure or a 3 way injection structure may be adopted. In some cases, the fluid injection unit 30 may include a valve (not shown).
  • the type of fluid that can be injected into the tube 20 through the fluid injection unit 30 is not limited, and may include a gas or liquid such as air or water.
  • a fluid injection part 30 is located at one end of the tube 20, and an elastic expansion part 10 is located at the other side of the tube 20.
  • the elastic expansion unit 10 is located above the tube 20, which is inserted into the rectum when the rectal insertion tube 100 is inserted into the rectum.
  • the elastically expanded portion 10 is bonded to surround the tube 20 along the surface of the tube 20 at the upper end of the tube 20. Specifically, the elastic expansion portion 10 is wrapped around the outer surface of the upper end side of the tube 20, and the upper and lower ends of the elastic expansion portion 10 are adhered to the side surfaces of the tube 20.
  • the upper adhesive portion 51 and the lower adhesive portion 52 represent portions to which the elastic expansion portion 10 and the tube 20 are adhered.
  • the upper adhesive portion 51 and the lower adhesive portion 52 are formed along the circumference of the tube 20 at the upper and lower ends of the elastic expansion portion 10, respectively.
  • the region between the upper adhesive portion 51 and the lower adhesive portion 52 corresponds to a region in which the elastic expansion portion 10 surrounds the tube 20.
  • the upper adhesive portion 51 and the lower adhesive portion 52 may be bonded to the elastically expanded portion 10 and the tube 20 using a medical silicone adhesive.
  • the upper adhesive portion 51 and the lower adhesive portion 52 may adhere the elastic expansion portion 10 and the tube 20 between the elastic expansion portion 10 and the tube 20, or the elastic expansion portion 10
  • the elastic expansion part 10 may be in close contact with (or adhere to) the tube 20 while surrounding the upper and lower parts of the elastic expansion part 10 on the outer surface of ).
  • the upper adhesive portion 51 and the lower adhesive portion 52 while bonding the elastic expansion portion 10 and the tube 20 between the elastic expansion portion 10 and the tube 20, and at the same time, the elastic expansion portion 10 It is also possible to surround the elastic expansion portion (10) on the outer surface of.
  • the upper adhesive portion 51 and the lower adhesive portion 52 have a predetermined length in the longitudinal direction (ie, the length direction of the tube 20) in order to stably adhere or fix the elastic expansion portion 10 to the tube 20 Can have.
  • At least one hole 21 is formed in the tube 20 within the area enclosed by the elastic expansion part 10. That is, the elastic expansion part 10 is adhered to cover the tube 20 while covering the hole 21 formed in the tube 20. At least one hole 21 is located between the upper adhesive portion 51 and the lower adhesive portion 52.
  • the elastic expansion unit 10 may expand as in the state S2 due to the pressure transmitted through the at least one hole 21. That is, while the fluid is ejected through the hole 21 of the tube 20, the elastic expansion unit 10 may be expanded.
  • the elastic expansion unit 10 may be formed of or include silicon rubber.
  • the elastically expandable portion 10 may have a predetermined elongation or elongation due to the silicone rubber.
  • the elastic expansion unit 10 may have a shape corresponding to the shape of the outer surface of the tube 20. That is, the entire inner surface of the elastic expansion part 10 may contact the outer surface of the tube 20.
  • the meaning that the entire inner surface of the elastic expansion unit 10 contacts the outer surface of the tube 20 means that the entire inner surface of the elastic expansion unit 10 is substantially or realistically applied to the outer surface of the tube 20. ) Includes the meaning of contact. Therefore, it includes a case where there is a slight variation in whether or not each point is in contact or the degree of contact on the entire inner surface of the elastic expansion unit 10. This is because the inner surface of the elastic expansion unit 10 may not be a perfectly smooth surface, and may include fine irregularities.
  • the elastically expandable portion 10 maintains elasticity and can repeat expansion and contraction. Due to the elongation rate of the silicone rubber, the elastically expandable portion 10 expands when a fluid is injected therein to deform the surface, and when the fluid is removed, it may be restored to its original shape as in the state S1.
  • a scale may be displayed on the tube 20.
  • a scale may be printed or engraved on the surface or inside of the tube 20. Using the scale marked on the tube 20, it is possible to know the length of the tube 20 inserted into the rectum.
  • the tube 20 may be formed of or include silicone rubber. Since the silicone rubber can have elasticity, the tube 20 can be flexible while having a predetermined strength. Therefore, it may not irritate or damage the lining of the rectum upon insertion.
  • a marker 40 that can be identified for radiation may be located.
  • the location of the marker 40 can be identified on the radiograph. For example, since the marker 40 can be identified through an x-ray image or a photo, the user can check the degree or position of the rectal insertion tube 100.
  • the marker 40 may include a material that causes radiation to react, for example, a material having high radiation attenuation.
  • the marker 40 may be a high-density liquid made of the above material. However, it is not necessarily limited to liquids.
  • the marker 40 may be in the form of a capsule containing liquid tungsten.
  • the marker 40 may include BaSO4.
  • the marker 40 may be made of, for example, a material compatible (or applicable) to MRI.
  • the marker 40 may be covered with a rubber material cover, for example.
  • the marker 40 may be formed to seal, for example, a high-density liquid material with a cover.
  • the marker 40 may be bonded, connected, or bonded to the top of the tube 20.
  • the marker 40 may have a shape in which the uppermost end of the tube 20 is extended, and may be manufactured to form a smooth curved surface.
  • the width, length, and height of the marker 40 may be less than 1 cm, respectively.
  • the length (eg, longitudinal length) and width (eg, transverse length or diameter) of the marker 40 may be less than 1 cm, respectively. However, it is not limited thereto.
  • the marker 40 may be positioned at the uppermost end of the tube 20 and may be positioned at an upper end of the elastic expansion portion 10 more than the upper end. Alternatively, at least a portion of the marker 40 may overlap at least a portion of the upper adhesive portion 51.
  • FIG. 4 schematically shows a part of the cross-section of the elastically expanded portion 10 according to an embodiment of the present invention.
  • FIG. 4 a state before a fluid is injected into the elastic expansion unit 10 (S1) and a state in which the fluid is injected (S2) are shown.
  • the elastically expandable portion 10 maintains elasticity and can repeat expansion and contraction. When a fluid is injected into the elastically expandable part 10, it expands and the surface is deformed, and when the fluid is removed, it may be restored to its original shape as in the state S1.
  • the elastic expansion portion 10 surrounding the tube 20 in the state before the fluid is injected (S1) is first along the axial direction (ie, the longitudinal direction) of the tube 20.
  • the thickness A1 and the second thickness B1 may be periodically repeated.
  • the outer surface of the elastic expansion portion 10 is flat, and the concave portion having a first thickness (A1) and a second thickness (B2) so that irregularities are formed in the inner surface direction of the elastic expansion portion 10 Branches may be repeatedly formed with convex portions.
  • the concave portion and the convex portion may be formed to be parallel along the circumferential direction (ie, circumferential direction) of the tube 20.
  • the second thickness B1 is thicker than the first thickness A1.
  • the elastic expansion part 10 forms a band having a second thickness B1 at a predetermined period C1 on a silicone rubber plate or layer having a first thickness A1. can do.
  • the band of the second thickness B1 is formed in the circumferential direction (that is, the circumferential direction) of the tube 20.
  • the period in which the band (or convex part) of the second thickness B1 is arranged along the axial direction of the tube 20 (C1) may be 1 mm to 2 mm.
  • the band of the second thickness B1 may be formed along the circumference (ie, perpendicular to the axis of the tube 20) so as to have a predetermined width D1.
  • the width D1 of the bands of the second thickness B1 may be smaller than the interval (width) between the bands of the second thickness B1.
  • the elastic expansion part 10 may be manufactured so that the second thickness B1 appears periodically (C1) on a plate or layer having a first thickness A1.
  • the first thickness (A1) is formed to be 0.4 to 0.6 mm
  • the second thickness (B2) is formed to be 0.5 mm to 0.7 mm
  • the second thickness (B1) is formed thicker than the first thickness (A1) Can be.
  • the outer surface of the elastic expansion unit 10 is flat, and the concave portion having a first thickness (A1) and a second thickness (B1) are formed such that irregularities are formed in the inner surface direction of the elastic expansion unit 10. Branches may be repeatedly formed with convex portions.
  • the surface of the elastic expansion unit 10 is stretched, so that the thickness of the concave portion (A2) and the thickness of the convex portion (B2) are in the state before the fluid is injected (S1). It may be thinner than the first thickness A1 of the concave portion and the second thickness B1 of the convex portion.
  • the width (D2) of the band corresponding to the convex part is the band of the convex part in the state before the fluid is injected (S1). May be wider than the width of D1.
  • the distance C2 from the convex portion to the next convex portion is greater than the period C1 of the convex portion in the state S1 before the fluid is injected.
  • the silicone rubber forming the elastically expandable portion 10 may have a different degree of elongation or elongation depending on the thickness (eg, A1, B1) and width (eg, C1, D1). For example, depending on the thickness (e.g. A1, B1) and width (e.g. C1, D1), the extent or limit of the elastic expansion portion 10 extending in the longitudinal direction (that is, the axial direction of the tube 20) Wow, the degree of stretching in the circumferential direction or its limit may vary.
  • the elastic expansion unit 10 when a fluid having a specified volume is injected, the elastic expansion unit 10 can expand to have a specified standard.
  • the elastic expansion part 10 when a fluid of 70 to 80 cc of a specified volume is injected, the elastic expansion part 10 is reproducible as a rectangular ellipse having a length of about 6 cm in a longitudinal direction and a diameter of about 4 cm in a transverse direction. Can be expanded.
  • a first thickness (A1) of 0.4 to 0.6 mm and a second thickness (B2) of 0.5 mm to 0.7 mm by forming a first thickness (A1) of 0.4 to 0.6 mm and a second thickness (B2) of 0.5 mm to 0.7 mm, tearing due to pressure can be prevented, and repetitive It can be beneficial for restoration.
  • FIG. 5 to 8 show a process in which a fluid is injected into the elastic expansion part 10 of the rectal insertion tube 100 shown in FIG. 1.
  • the upper and lower portions of the elastic expansion unit 10 maintain contact with the tube 20, and the central region of the elastic expansion unit 10 corresponding to the area where the hole 21 is located. Can only expand first. In this case, a distance between the convex portions at the upper and lower portions of the elastic expansion unit 10 in contact with the tube 20 and the distance between the convex portions at the expanded center may be different. The spacing between the convex portions in the expanded center becomes farther away than the spacing between the convex portions in the upper and lower portions of the elastically expanded portion 10 (FIGS. 5 and 6 ).
  • the elastic expansion portion 10 cannot continue to expand in the transverse direction (that is, in the radial direction), and the central portion of the elastic expansion portion 10 When is expanded to a predetermined diameter, the expansion is then moved in the longitudinal direction. That is, the expansion first made in the central region of the elastic expansion unit 10 corresponding to the position of the hole 21 gradually moves upward and downward (FIGS. 6 and 7 ).
  • the elastic expansion unit 10 may expand to have a fixed shape or standard. That is, in the case of injecting a fluid of a specified amount into the elastic expansion unit 10, the longitudinal length and the lateral diameter of the elastic expansion unit 10 may have reproducibility.
  • the first thickness of the concave portion (A1), the second thickness of the convex portion (B1), the width of the convex portion (D1), and between the convex portion formed in the elastic expansion portion 10 according to an embodiment of the present invention The distance period C1 allows the elastically expanded portion 10 to be fixedly expanded in a designated shape.
  • the expanded elastic expansion unit 10 when a fluid is injected into the elastic expansion unit 10 by a specified capacity (eg, the maximum specified capacity), due to the longitudinal expansion characteristic due to the structure, the expanded elastic expansion unit 10 The uppermost portion of) may be expanded in an upward direction than the lower boundary 511 of the upper adhesive portion 51. Likewise, the lowermost portion of the expanded elastic expansion portion 10 may be expanded in a lower direction than the upper boundary 512 of the lower adhesive portion 52.
  • the maximum specified capacity may be, for example, 70 cc to 80 cc.
  • the center of the elastic expansion part 10 expands more than the upper and lower parts of the elastic expansion part 10, so that at the center
  • the spacing between the convex portions of may be wider than the spacing between the convex portions in the upper and lower portions of the elastic expansion portion 10. That is, since the degree of expansion of the elastic expansion unit 10 decreases as it approaches the top bonding portion 51 and the bottom bonding portion 52, the spacing between the convex portions is tighter, and the width of the convex portions may be narrower.
  • the at least one hole 21 may be formed in only one side, in the center between the top bonding portion 51 and the bottom bonding portion 52.
  • the hole 21 may be formed only on one side of the center between the upper adhesive portion 51 and the lower adhesive portion 52 with a predetermined interval.
  • the at least one hole 21 may provide a strong pressure to the central region of the elastic expansion unit 10 when fluid is injected.
  • the fluid injection unit 30 may be adopted as a 2 way injection structure, but is not limited thereto.

Abstract

La présente invention concerne un tube d'insertion rectale comprenant : un tube dans lequel un fluide peut être injecté à travers une portion d'extrémité de celui-ci et qui possède un trou formé au niveau de l'autre surface latérale de celui-ci ; et une partie élastiquement extensible qui englobe la surface latérale du tube tout en recouvrant le trou, et dont les extrémités supérieure et inférieure sont collées à la surface latérale du tube, la partie élastiquement extensible entourant le tube de manière à correspondre à la forme du tube de sorte que la surface interne de la partie élastiquement extensible vient en contact avec la surface latérale du tube, et la partie élastiquement extensible peut être étendue lorsque le fluide est injecté à travers la portion d'extrémité de celui-ci.
PCT/KR2020/016522 2019-11-20 2020-11-20 Tube d'insertion rectale WO2021101336A2 (fr)

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Application Number Priority Date Filing Date Title
KR1020190149881A KR102312274B1 (ko) 2019-11-20 2019-11-20 직장 삽입 튜브
KR10-2019-0149881 2019-11-20

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WO2021101336A2 true WO2021101336A2 (fr) 2021-05-27
WO2021101336A3 WO2021101336A3 (fr) 2021-07-15

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