WO2006028266A1 - 残留物回収装置 - Google Patents
残留物回収装置 Download PDFInfo
- Publication number
- WO2006028266A1 WO2006028266A1 PCT/JP2005/016981 JP2005016981W WO2006028266A1 WO 2006028266 A1 WO2006028266 A1 WO 2006028266A1 JP 2005016981 W JP2005016981 W JP 2005016981W WO 2006028266 A1 WO2006028266 A1 WO 2006028266A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- residue
- inner cylinder
- stent
- cylinder
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B2017/22035—Gripping instruments, e.g. forceps, for removing or smashing calculi for retrieving or repositioning foreign objects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A61B2017/2215—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having an open distal end
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
- A61B2017/2939—Details of linkages or pivot points
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2002/9528—Instruments specially adapted for placement or removal of stents or stent-grafts for retrieval of stents
Definitions
- the present invention relates to a residue collecting apparatus, and more specifically, inserted into blood vessels, bile ducts, ureters and other body tubular organs, and grasps unnecessary residues such as foreign substances such as stents existing in the organs.
- the present invention relates to a residue collection device having a forceps structure for collection. Background art
- a snare is formed by projecting a loop-shaped guide wire from the catheter tip, and the stent is placed in the snare. It is possible to insert a part, pull the guide wire and squeeze the stent into the snare, and then pull it into the catheter for recovery.
- a small cutter driven by a motor Use a catheter (DCA) attached or a type of catheter (RCA) that removes atheroma by rotating the head with diamond powder, also called a rotablator, at high speed to remove the stent after breaking it. I had to.
- DCA catheter
- RCA type of catheter
- Japanese Patent Laid-Open No. 8-30 885 is openable and closable at the tip of a shaft that is passed through a forceps channel of an endoscope.
- An endoscopic grasping forceps that is configured to be opened and closed by a remote operation from an operation unit provided on the proximal end side of the shaft, and having a plurality of cuts that open to the front side.
- a cylindrical body and the shaft A grip portion cover that surrounds the distal end portion of the grip portion and is movably disposed in the axial direction, and the operation portion so that the grip portion cover can be moved from the rear to the front of the grip member by remote control.
- An endoscopic grasping forceps characterized in that it is provided with a force-par operation means arranged on the outer surface of the endoscope. According to such an apparatus, even a foreign object or the like ahead of the stenosis is not damaged. It can be easily recovered.
- the gripping member is formed of a panel panel material, and in a state where it is projected from the tip of the shaft, it opens by its own panel property and is pulled by the operation wire. It is configured to be elastically deformed into a constricted shape in the shaft, so that the operation such as the opening angle of the gripping member and the gripping force are uniformly determined by the material and shape of the panel material used.
- the present invention has been made with the object of providing a recovery device that can safely and easily grasp and recover various kinds of stents of various materials, shapes, and structures remaining in the body cavity. .
- the outer cylinder, inner cylinder, which is ⁇ within the outer cylinder, the residue recovered characterized in that it comprises a openably provided we _ the gripping means with the link mechanism to the tip of Oyopi inner cylinder
- An apparatus is provided.
- a device for recovering a residue inside a body tubular organ such as a blood vessel which is a hollow body inserted into the tubular organ.
- a residue collecting device for accommodating the gripped residue in the outer cylinder by relative movement between the outer cylinder and the inner cylinder.
- the gripping force and the opening angle of the gripping part can be freely adjusted with flexible correspondence according to the shape, material, structure, etc. of the recovery target, and it is safe and easy. There is an effect that foreign matter such as a stent can be collected quickly and reliably.
- FIG. 1 is a schematic side view showing a part of the overall structure of a residue collecting apparatus according to an embodiment of the present invention, which is partly shown in a sectional view.
- FIG. 2 is a schematic cross-sectional view showing the configuration of the gripping portion of the residue collection apparatus shown in FIG.
- FIG. 3 is a schematic cross-sectional view taken along the line 3-3 of the gripping part shown in FIG.
- FIG. 4 is a schematic cross-sectional view showing the configuration of the operation unit of the residue collecting apparatus shown in FIG.
- FIG. 5 is a schematic side view illustrating a part of the operation method of the residue recovery apparatus according to the embodiment of the present invention, partly in a sectional view.
- FIG. 6 is a schematic side view illustrating a part of the operation method of the residue collecting apparatus according to the embodiment of the present invention, partly in a cross-sectional view.
- FIG. 7 is a schematic side view illustrating a part of the operation method of the residue collecting apparatus according to the embodiment of the present invention, partly in a cross-sectional view. '
- FIG. 8 is a schematic cross-sectional view illustrating the operation of inserting the guide wire into the stent.
- 1 to 4 are schematic cross-sectional views illustrating the structure of the residue collecting apparatus according to this embodiment.
- the residue collecting apparatus 1 is roughly divided into a gripping part (hereinafter also referred to as gripping means) 2 for gripping a stent, and a container for storing the gripped stent.
- the storage unit 3 and an operation unit 7 for performing gripping and storage operations outside the body are configured.
- the storage section 3 includes a hollow outer cylinder 3 3, an inner cylinder 4 threaded in the axial direction inside the outer cylinder 3 3, and an axial direction inside the inner cylinder 4. It consists of a shaft 5 passed through.
- the outer cylinder 33 is a part that mainly functions as a catheter that is pierced inside a blood vessel or the like and a function that accommodates the grasping part 2, and is composed of a hollow cylindrical member having a predetermined outer diameter and inner diameter. It is desirable to use a material such as a synthetic resin that is rich in flexibility, mechanical strength, etc., and it is also possible to use a commercially available catheter.
- the inner cylinder 4 is a portion that mainly functions to allow the gripping part 2 to be exposed from the outer cylinder 33 and to be accommodated in the outer cylinder 33, and is formed of the same material as the outer cylinder 33. be able to.
- the outer diameter of the inner cylinder 4 is formed to be slightly smaller than the inner diameter of the outer cylinder 33, and the inner cylinder 4 reciprocates in the outer cylinder 33 with respect to the outer cylinder 33 and moves back and forth in the tube axis direction. It is configured such that forward and reverse rotational movements about the axis are possible.
- the shaft 5 is a part that mainly performs the function of enabling the opening and closing operation of the gripping part 2, and is preferably formed of a material rich in flexibility, mechanical strength, and the like. Can be configured.
- the distal end portion 3 2 of the outer cylinder 3 3 has a shape with a taper toward the outer side, so that the pulling when the stent is accommodated in the outer cylinder 33 is reduced. It is formed as follows.
- the center portion of the disc-shaped proximal portion 34 provided so as to close the opening of the end portion thereof is connected to the proximal end portion of the inner cylinder 4 with the proximal portion 34. It penetrates densely and slidably, and by moving one of the proximal end portion and the proximal portion 34 of the inner cylinder 4 relative to the other, the inner cylinder 4 is moved in the direction of the tube axis in the outer cylinder 33. It can be freely moved back and forth.
- a port 31 is provided in the vicinity of the hand portion 34, through which the inside of the outer tube 33 can be flushed with physiological saline or the like.
- the gripping portion 2 is rotatably supported at the tip portion 25 of the inner cylinder 4 by four support shafts 2 4 at equal intervals in the circumferential direction.
- Each of the forceps 20 has a forceps 20, and the distal end of each forceps 20 is slightly bent inside the circle connecting them, thereby facilitating the grasping of the stent.
- each forceps 20 is rotatably supported at one end of the joint 21 by a connecting shaft 2 2 a provided in the center in the length direction, and the other end of the joint 21 is the tip of the shaft 5. It is rotatably supported on a connecting shaft 2 2 b provided in the portion 23.
- the reciprocating motion along the axial direction of the shaft 5 is converted into the opening / closing motion of the four forceps 20 using the link mechanism. It is comprised so that the grip force with respect to etc. may be acquired.
- the number of forceps 20 is not limited to four, and may be two, three, or five or more.
- the number can be appropriately determined according to the shape, material, structure, etc. of the object to be collected.
- the four forceps are positioned at equal intervals in the circumferential direction at the distal end portion 25 of the inner cylinder 4, but the distance between the forceps is not necessarily uniform.
- the gripping function can be further enhanced by appropriately varying according to the shape, material, structure, etc. of the collection object.
- a through-hole reaching the operation section 7 is provided in the center and shaft center portion of the shaft 5, and the guide wire 6 extends along the longitudinal direction of the apparatus 1 in the inside thereof. And can be moved back and forth smoothly.
- the guide wire 1 mainly serves to make the stent easy to grasp because the grasping portion 2 approaches the end of the stent smoothly.
- the outer cylinder 33, the inner cylinder 4, the shaft 5 and the guide wire 6 are sufficient to operate the apparatus 1 from outside the body via the operation unit 7 when the stent is in a predetermined position in the blood vessel.
- Each has a length.
- the base end of the shaft 5 in the inner cylinder 4 is pulled out through the base end surface of the outer cylinder 33, but the person holds that part in his hand.
- the connecting shaft 10 connected to the proximal end portion 12 of the shaft 5 in the operation portion 7 A handle 8 is attached to the proximal end.
- the shaft base end portion 12 is provided with a notch 13 at a part thereof, and the guide wire 6 can be inserted into or removed from the port 11.
- a coil spring 30 having a predetermined length is disposed on the shaft 5 to limit the pulling amount of the shaft 5 to a predetermined amount or less.
- the gripping portion 2 is most narrowed when the shaft 5 is pushed out to the distal end side as much as possible, and then the shaft 5 is pulled to the proximal end side to connect the joint 21 to the shaft 5 axis.
- the positional relationship between the outer cylinder 3 3 and the casing cylinder 4 and the positional relation between the inner cylinder 4 and the shaft 5 can be changed in the longitudinal direction of the device 1, respectively. It is preferable that the mutual positional relationship can be fixed in a desired state by temporary engagement means such as the above.
- the shaft 5 is moved relative to the inner cylinder 4 while the positional relationship between the outer cylinder 33 and the inner cylinder 4 is fixed, or the inner cylinder 4 and the shaft are moved. It is easy to move the inner cylinder 4 relative to the outer cylinder 3 3 while maintaining the positional relationship between the stent 5 and the stent. It can be done reliably. .
- the distal end portion of the force wire 6 is passed through the mesh-like cylinder of the stent 50 placed in the blood vessel 100 and advanced to the distal end of the stent.
- the tip of the outer cylinder 33 is introduced to the vicinity of the stent.
- the inner cylinder 4 provided with the gripping part 2 is completely accommodated in the outer cylinder 33 in advance with the guide wire 6 inserted therethrough.
- the base end portion of the inner cylinder 4 is pushed toward the distal end side to push the grip portion 2 stored in the outer cylinder 3 3 to the outer cylinder 3 3
- the handle 8 toward the hand side (in the direction of arrow 2 0 0) while holding the base end of the inner tube 4 in the state of being held and fixed.
- the forceps 20 is moved by moving it relatively to the proximal end side with respect to the tube 4 (at this time, the relative positional relationship between the outer tube 33 and the inner tube 4 is fixed by the method described above).
- the guide wire 6 allows the forceps 20 to approach the proximal end portion of the stent 50 smoothly and easily between the proximal end portion of the stent 50 and the inner wall of the blood vessel 100. Demonstrates the effect (capturing effect) of entering and making it easier to grasp the stent 50.
- the distal end of the guide wire 6 is placed on the stent 50, for example, as shown in FIG. Between the stent 50 and the inner wall of the blood vessel 100, and then inserted from the outside of the stent 50 into the inside of the tube of the stent 50 through the mesh of the stent 50.
- the distal end portion of the forceps 20 may be inserted between the outer periphery of the proximal end portion of the stent 50 and the inner wall of the blood vessel 100 by advancing the grasping portion 2 while being guided.
- FIG. 8 shows only the upper half of the stent 50 existing in the blood vessel 100, and the guide wire 6 is located inside the stent 50 from the right side to the left side in the figure. Shall be inserted.
- the handle 8 is pushed in the front end direction (in the direction of the arrow 2 1 0) with the fixed shape holding the outer cylinder 3 3 (at this time, the outer cylinder 3 3 and the inner cylinder 4
- the forceps 20 are closed as indicated by arrows 24 0 and the proximal end of the stent 50 is gripped.
- the gripping means 2 is opened and closed based on the link mechanism and the relative movement between the inner cylinder 4 and the shaft 5. It is possible to adjust the gripping force and opening angle of the gripping part easily and freely with flexible compatibility according to the shape, material, structure, etc. of 0, and grip the stent 50 safely, easily, quickly and reliably. Can do.
- the forceps 20 is opened again by the same operation as described above, and the grasping portion 2 is opened in the open state. After further advancing, the operation of closing the forceps 20 may be repeated as many times as necessary to take the stent 50 deeper into the grasping means 2.
- the recovery device 1 is removed from the blood vessel 100 0 to the outside of the body. In this way, the stent can be grasped and retrieved.
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006535181A JPWO2006028266A1 (ja) | 2004-09-07 | 2005-09-07 | 残留物回収装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004259488 | 2004-09-07 | ||
JP2004-259488 | 2004-09-07 |
Publications (1)
Publication Number | Publication Date |
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WO2006028266A1 true WO2006028266A1 (ja) | 2006-03-16 |
Family
ID=36036542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/016981 WO2006028266A1 (ja) | 2004-09-07 | 2005-09-07 | 残留物回収装置 |
Country Status (2)
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JP (1) | JPWO2006028266A1 (ja) |
WO (1) | WO2006028266A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013202177A (ja) * | 2012-03-28 | 2013-10-07 | Sumitomo Bakelite Co Ltd | 回収装置 |
CN103720530A (zh) * | 2014-01-10 | 2014-04-16 | 曹莹莹 | 一种非记忆合金食管支架安放回收装置 |
CN103892946A (zh) * | 2014-04-04 | 2014-07-02 | 赵中伟 | 一种食道临时支架取出器 |
JP2015514470A (ja) * | 2012-03-29 | 2015-05-21 | スピレーション インコーポレイテッド | 異物を処理するための医療用装置および医療システムならびにその使用方法 |
CN108606814A (zh) * | 2018-05-25 | 2018-10-02 | 东莞市联洲知识产权运营管理有限公司 | 一种一次性用内窥镜标本取物袋 |
US12035939B2 (en) | 2012-03-29 | 2024-07-16 | Gyrus Acmi, Inc. | Pulmonary nodule access devices and methods of using the same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55148547A (en) * | 1979-05-09 | 1980-11-19 | Olympus Optical Co | Extractor for foreign matter for endoscope |
JPH0542164A (ja) * | 1991-08-16 | 1993-02-23 | Olympus Optical Co Ltd | プロステーセス抜去装置 |
JPH08308850A (ja) * | 1995-05-16 | 1996-11-26 | Asahi Optical Co Ltd | 内視鏡用把持鉗子 |
WO2002056754A2 (en) * | 2001-01-17 | 2002-07-25 | Surgicon, Inc. | Instruments and methods for use in laparoscopic surgery |
-
2005
- 2005-09-07 JP JP2006535181A patent/JPWO2006028266A1/ja active Pending
- 2005-09-07 WO PCT/JP2005/016981 patent/WO2006028266A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55148547A (en) * | 1979-05-09 | 1980-11-19 | Olympus Optical Co | Extractor for foreign matter for endoscope |
JPH0542164A (ja) * | 1991-08-16 | 1993-02-23 | Olympus Optical Co Ltd | プロステーセス抜去装置 |
JPH08308850A (ja) * | 1995-05-16 | 1996-11-26 | Asahi Optical Co Ltd | 内視鏡用把持鉗子 |
WO2002056754A2 (en) * | 2001-01-17 | 2002-07-25 | Surgicon, Inc. | Instruments and methods for use in laparoscopic surgery |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013202177A (ja) * | 2012-03-28 | 2013-10-07 | Sumitomo Bakelite Co Ltd | 回収装置 |
JP2015514470A (ja) * | 2012-03-29 | 2015-05-21 | スピレーション インコーポレイテッド | 異物を処理するための医療用装置および医療システムならびにその使用方法 |
US12035939B2 (en) | 2012-03-29 | 2024-07-16 | Gyrus Acmi, Inc. | Pulmonary nodule access devices and methods of using the same |
CN103720530A (zh) * | 2014-01-10 | 2014-04-16 | 曹莹莹 | 一种非记忆合金食管支架安放回收装置 |
CN103892946A (zh) * | 2014-04-04 | 2014-07-02 | 赵中伟 | 一种食道临时支架取出器 |
CN108606814A (zh) * | 2018-05-25 | 2018-10-02 | 东莞市联洲知识产权运营管理有限公司 | 一种一次性用内窥镜标本取物袋 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2006028266A1 (ja) | 2008-05-08 |
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