WO2022261850A1 - Cercleuse à pression négative visuelle - Google Patents

Cercleuse à pression négative visuelle Download PDF

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Publication number
WO2022261850A1
WO2022261850A1 PCT/CN2021/100318 CN2021100318W WO2022261850A1 WO 2022261850 A1 WO2022261850 A1 WO 2022261850A1 CN 2021100318 W CN2021100318 W CN 2021100318W WO 2022261850 A1 WO2022261850 A1 WO 2022261850A1
Authority
WO
WIPO (PCT)
Prior art keywords
ligation
negative pressure
visual
wire
housing
Prior art date
Application number
PCT/CN2021/100318
Other languages
English (en)
Chinese (zh)
Inventor
李伟林
魏志军
赵向东
廖颖英
李芳斓
Original Assignee
深圳市中医院
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 深圳市中医院 filed Critical 深圳市中医院
Priority to PCT/CN2021/100318 priority Critical patent/WO2022261850A1/fr
Publication of WO2022261850A1 publication Critical patent/WO2022261850A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments

Definitions

  • the invention relates to a visual negative pressure bundler.
  • the surgical instruments used include rectal staplers, ligation devices, etc., such as the patent number: "202011457890.
  • Ligation head and anorectal sleeve using the multi-chamber ligation head are: “202011629620.3”, and the name is: "A negative pressure mechanism and a ligation device for a ligation device", etc.
  • This method has the disadvantages of small amount of adsorbed tissue, small resection range, and the elastic ligation ring of rubber material is easy to fall off in advance and cannot be ligated effectively.
  • the opening of the negative pressure device of the ligation device is basically parallel to the rectum, and the treatment process starts from rectal lesions.
  • the distal adsorption tissue ligation has poor compliance and inaccurate positioning of the lesion.
  • the treatment process of these two methods is not fully visible, and there is a certain degree of blind operability.
  • the purpose of the present invention is to solve the problem that the existing visual negative pressure banders cannot be precisely positioned and removed and there are residues.
  • the visual negative pressure strapping device of the present invention includes a casing, and a ligation structure arranged in the casing, the casing is sleeve-shaped, and the The distal end is provided with a tapered guide structure for introducing the bander into the anorectum of the human body.
  • a negative pressure suction head is provided on the side of the housing close to the guide structure for sucking the diseased tissue. The negative pressure suction head is connected to the air pump.
  • the ligation structure is arranged on the inner wall of the inlet of the negative pressure suction head, the ligation structure includes a ligation wire with self-locking function, and the locking end of the ligation wire is provided with a self-locking hole , the free end of the ligation wire passes through the self-locking hole to form a ligation ring, and the ligation ring is detachably clamped on the inner wall of the inlet of the negative pressure suction head, and the proximal end of the housing is provided with a The free end of the tying wire is tightened so that the ligating ring is tightened and locked, and the ligating locking structure is provided.
  • the outer side or/and inner side of the housing is provided with a visual device, and the corresponding detection device is provided on the outer wall of the housing. Transparent Visual window.
  • the technical scheme that further limits the present invention comprises:
  • the bundler includes more than one negative pressure suction head of different sizes, and the negative pressure suction head is detachably connected with the shell.
  • the cutting structure for cutting off the ligation thread after ligation, and the cutting structure includes a cutter corresponding to the ligation thread below the self-locking hole, which is connected with the cutter through a rotating shaft
  • the knife handle connected with the knife handle is used to pull the knife handle to rotate the cutter to cut the end of the ligation wire, and the torsion spring on the rotating shaft is used to reset the cutter.
  • a cut-off button connected with the pull cord is provided, and the cut-off button is slidably arranged on the casing.
  • the cutter and the knife handle form a V-shape, the middle part of the V-shape is provided with a drawstring guide ring, and a drawstring guide channel is provided under the corresponding drawstring guide ring, and the drawstring guides through the drawstring
  • the ring and the pull rope guiding channel are connected with the cutting button, and the casing is provided with a cutting table that cooperates with a cutter to cut off the ligation line.
  • the ligation locking structure includes a ligation locking knob that is threadedly connected to the proximal end of the housing, a tension wire used to tighten the free end of the ligation wire, and A winding column in the center for winding the free end of the tension wire, the tension wire is connected to the free end of the tie wire, the tension wire is wound on the winding column, and the inner wall of the housing is provided with a sleeve corresponding to the tension wire
  • the binding thread leads out the channel, and the exit of the binding line leading out channel is set corresponding to the winding post.
  • the inner side of the free end of the ligation line is provided with a stab, and the self-locking hole is provided with an elastic lock tongue that cooperates with the stab or the self-locking hole of the ligation line adopts a sailor's knot.
  • the free end of the tie wire is threaded through a sailor's knot to form a lashing loop.
  • the inner wall of the inlet of the negative pressure suction head is provided with a banding ring slot, and the banding ring slot is provided with a shrapnel for snapping the banding ring into the banding ring slot.
  • the ligation ring is clamped in the groove of the ligation ring through the elastic piece, and the inner wall of the inlet of the negative pressure suction head is also provided with a locking end positioning groove of the ligation wire for positioning the locking end of the ligation wire.
  • the outer casing is provided with a blocking sheet to prevent the tieer from sliding into the rectum.
  • the visual device includes a camera assembly, and a light source provided on the camera assembly, which is connected to the display by wire or wirelessly, and the display is detachably connected to the proximal end of the housing; the display is provided with a display installation
  • the display installation part and the housing are adjusted by rotating the ball head structure.
  • the display installation part is provided with a ball head
  • the housing is provided with a ball head elastic slot that cooperates with the ball head structure.
  • the ball head is detachably engaged with the elastic locking groove of the ball head
  • the visual device includes a first visual device disposed on the outer wall of the housing and located at the periphery of the inlet of the negative pressure suction head.
  • Both the housing and the negative pressure suction head are made of transparent materials, and the visualization device also includes a first device for observing the diseased tissue in the negative pressure suction head provided in the housing below the corresponding negative pressure suction head. 2. Visual devices.
  • the beneficial effects of the present invention are: when the visualized negative pressure bandager of the present invention is bandaged, under the observation of the visual device, the lesion tissue is absorbed into the negative pressure suction head through the negative pressure suction head, and then put on The locking structure tightens the free end of the ligation wire so that the ligation ring is tightened and locked, so that the diseased tissue can be ligated.
  • the visual device Because of the visual device, it can be accurately positioned, and the ligation wire has a self-locking hole, and the tensioning sleeve
  • the free end of the ligature can tighten the ligature in one direction and lock the lesion tissue, so as to achieve the therapeutic purpose of effective ligation and not easy to fall off, and if the base part is loose during the process of rectal lesion necrosis, the ligature can be further tightened to avoid premature It can be used for accurate resection of large rectal lesions without the disadvantage of foreign matter remaining in the body.
  • Fig. 1 is a three-dimensional structural schematic diagram of a visual negative pressure strapping device of the present invention.
  • FIG. 2 is a schematic diagram of an enlarged cross-sectional structure at point A in FIG. 1 .
  • Fig. 3 is a schematic cut-away structure diagram of a visual negative pressure strapping device of the present invention.
  • FIG. 4 is a schematic diagram of an enlarged structure at B in FIG. 3 .
  • Fig. 5 is a schematic diagram of an exploded structure of a visual negative pressure strapping device of the present invention.
  • FIG. 6 is a schematic diagram of an enlarged structure at point C in FIG. 5 .
  • a visual negative pressure strapping device includes a housing 1, a banding structure 2 arranged in the housing, the housing is in the shape of a sleeve, and the distal end of the housing is provided for guiding the strapping device into
  • the cone-shaped guide structure 3 in the anorectum of the human body is a cone-shaped guide structure. It is convenient for the stapler to be introduced into the anorectum.
  • a negative pressure suction head 4 for inhaling diseased tissue is provided on the side of the housing close to the guide structure. The negative pressure suction head is connected to the air pump.
  • the ligation structure is arranged on the inner wall of the inlet 41 of the negative pressure suction head.
  • the ligation structure 2 includes A ligation wire 21 with self-locking function, the locking end of the ligation wire is provided with a self-locking hole 211, and the free end of the ligation wire passes through the self-locking hole to form a ligation ring 212, which is detachably clamped on the negative
  • the proximal end of the housing is provided with a ligation locking structure 22 for tightening the free end of the ligation wire so that the ligation ring is tightened and locked.
  • the visual device 6 is provided with a transparent visual window corresponding to the detection device on the outer wall of the housing.
  • the lesion tissue is absorbed into the negative pressure suction head through the negative pressure suction head, and then the ligation locking structure tightens the free end of the ligation wire so that the ligation ring is tightened and locked.
  • the lesion tissue can be ligated, because there is a visual device that can be accurately positioned, and the ligation wire has a self-locking hole, and the free end of the ligation wire can be tightened to lock the lesion tissue in one direction.
  • the ligation thread can be further tightened to avoid early fall off. It can be used for accurate resection of large rectal lesions without the disadvantages of foreign bodies remaining in the body.
  • the bundler includes more than one negative pressure suction head of different sizes, and the negative pressure suction head is detachably connected to the shell.
  • the negative pressure suction head can be detachably connected to the shell through screws, so that different negative pressure suction heads can be replaced according to the size of the diseased tissue.
  • the ligation locking structure 22 includes a ligation locking knob 221 threadedly connected to the proximal end of the casing, a tensioning wire 222 for tightening the free end of the ligation wire, and a
  • the winding column 223 in the center of the ligation locking knob is used to wind the free end of the tension wire, the tension wire is connected to the free end of the tension wire, the tension wire is wound on the winding column, and the inner wall of the housing corresponds to the tension wire
  • a ligation wire lead-out channel 224 is provided, and the outlet of the ligation wire lead-out channel is set corresponding to the winding column.
  • the tension wire When the knob is rotated, the tension wire is wound on the winding post, and the tension wire pulls the free end of the ligation wire to tighten the ligation ring so that the diseased tissue is ligated.
  • the ligation wire After the ligation is completed and the ligation wire is self-locked, if it is not necessary to cut the ligation wire along the proximal end of the ligation ring, unscrew the ligation locking knob to cut the ligation wire to an appropriate length.
  • a cannula can be placed to further adjust the tension of the binding line at any time to prevent the knot from loosening due to the damage of the ligated tissue.
  • a cutting structure 5 for cutting off the ligation thread after bandaging is provided below the self-locking hole, and the cutting structure 5 includes a cutter 51 corresponding to the setting of the ligation thread below the self-locking hole, and passes through the cutting knife.
  • the knife handle 53 connected with the rotating shaft 52, the stay rope 54 connected with the knife handle for pulling the knife handle to rotate the cutting knife to cut the end of the ligation line, and the torsion spring 55 used for the cutter reset on the rotating shaft, the housing
  • the near end is provided with a cutting button 56 connected with the stay cord, and the cutting button is slidably arranged on the housing.
  • Cut-off button 56 is provided with buckle 561, and cut-off button is arranged on the shell by sliding up and down by buckle, and cutter and handle of a knife form V shape, and the middle part of V shape is provided with stay cord guide ring 57, corresponding to the drawstring guide ring.
  • the bottom is provided with a stay cord guide channel 58, and the stay cord passes through the stay cord guide ring and the stay cord guide channel to be connected with the cut-off button.
  • the shell 1 is provided with a cutting table 59 that cooperates with a cutter to cut off the banding wire, and the cutting table corresponds to the cutter Setting, cutting table and cutting knife are respectively located on both sides of the ligation line.
  • the cut-off button When it needs to be cut off, the cut-off button is pulled, and the cut-off button drives the stay cord to pull the handle of a knife to rotate along the rotating shaft, thereby driving the cutter head to rotate to cut off the ligation thread.
  • the torsion spring is in a compressed state.
  • the cut-off button is released, the torsion spring rebounds and drives the blade to return to its original position.
  • the cutting structure may not be provided, and the tail end of the ligation thread can be left outside the anus and inserted into a sleeve to further adjust the tension of the binding thread at any time to prevent the thread knot from loosening due to the damage of the ligated tissue.
  • the visual device 6 includes a camera component and a light source provided on the camera component.
  • the visual device is connected to the display 7 through wires or wirelessly, and the display is detachably connected to the proximal end of the casing. Therefore, during the operation, the condition of the diseased tissue can be observed in real time, precise positioning can be achieved, and all ligation can be performed at one time.
  • the visual device 6 includes a first visual device 61 located on the periphery of the inlet of the negative pressure suction head in the outer wall of the housing, and the 3 first visual devices are connected with the inlet of the negative pressure suction head.
  • the center is the axis and evenly arranged.
  • both the housing and the negative pressure suction head are made of transparent materials, and the visual device also includes a second device for observing the diseased tissue in the negative pressure suction head provided in the housing below the corresponding negative pressure suction head.
  • Visual device 62 Therefore, the ligation condition of the diseased body tissue in the negative pressure suction head can be observed, and a good surgical field of view is provided, so that all the diseased body tissue can be absorbed and ligated.
  • the display 7 is provided with a display installation part 71, and the display installation part and the housing are adjusted through the rotation of the ball head structure 8.
  • the display installation part is provided with a ball head 81, and the housing is provided with a ball
  • the ball head elastic slot 82 is detachably engaged with the ball head elastic slot. When in use, the ball head is snapped into the elastic slot of the ball head, and the angle of the display can be adjusted through the ball head structure, thereby facilitating observation.
  • the housing 1 is provided with a vent tube 9 communicating with the negative pressure suction head.
  • the center of the winding column 223 is provided with a vent tube through hole 2231 for the vent tube to pass through. Pump connection. Therefore, the overall structure is simple and compact, which is convenient for installation and use.
  • the ventilation pipe may not pass through the middle of the winding column, but may be led out from the side of the casing.
  • the inner wall of the inlet of the negative pressure suction head 4 is provided with a banding ring slot 41, and the banding ring slot is provided with a shrapnel 43 for snapping the banding ring into the banding ring slot.
  • the tying ring is clamped in the tying ring slot through the elastic piece, and the inner wall of the inlet of the negative pressure suction head is also provided with a tying line locking end positioning groove 44 for positioning the locking end of the tying line.
  • the shrapnel is made of soft rubber material, so that it can be elastically deformed to position the ligation ring in the slot of the ligation ring without affecting the inhalation of the diseased tissue.
  • the ligation ring breaks away from the shrapnel and fits on the sick tissue.
  • the inner side of the free end of the ligation wire is provided with a stab, and the self-locking hole is provided with an elastic lock tongue that cooperates with the buckle.
  • the elastic lock tongue It is stuck on the thorn and can only be tightened in one direction.
  • the self-locking hole of the ligation wire can also adopt a sailor's knot, and the free end of the ligation wire passes through the sailor's knot to form a ligation ring, and the ligation ring is locked by tightening the free end of the ligation wire.
  • the ligation thread is made of absorbable ligation thread, such as sheep catgut, polymer chemical synthesis thread, pure natural collagen suture, etc., which can be degraded and absorbed by the human body, so that there is no need to remove the stitches, and the pain of stitch removal is avoided.
  • absorbable ligation thread such as sheep catgut, polymer chemical synthesis thread, pure natural collagen suture, etc.
  • the casing 1 is provided with a blocking piece 10 to prevent the binder from sliding into the rectum. This prevents the binder from slipping into the rectum.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic 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)
  • Reproductive Health (AREA)
  • Vascular Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne une cercleuse à pression négative visuelle, résolvant le problème selon lequel une cercleuse à pression négative visuelle existante ne peut pas positionner et éliminer précisément des résidus. La cercleuse à pression négative visuelle comprend un boîtier (1), une structure de ligature (2) disposée dans le boîtier (1), et une pointe à pression négative (4) disposée sur une surface latérale du boîtier (1). La structure de ligature (2) comprend un fil de ligature (21) ayant une fonction d'auto-verrouillage, une structure de verrouillage de ligature (22) est disposée au niveau d'une extrémité proximale du boîtier (1), et un dispositif visuel (6) est disposé sur le côté extérieur et/ou le côté intérieur du boîtier (1). Lors de la ligature, sous l'observation au moyen du dispositif visuel (6), un tissu pathologique est aspiré dans la pointe à pression négative (4) au moyen de la pointe à pression négative (4), puis une extrémité libre du fil de ligature (21) est tendue par la structure de verrouillage de ligature (22) pour serrer et verrouiller un anneau de ligature (212), de telle sorte que le tissu pathologique est ligaturé. Un positionnement précis peut être obtenu en raison de l'existence du dispositif visuel (6) ; l'extrémité libre du fil de ligature (21) peut être tendue pour serrer de manière unidirectionnelle le fil de ligature (21) pour verrouiller le tissu pathologique, ce qui permet d'atteindre l'objectif de traitement, à savoir qu'il n'est pas facile pour le tissu pathologique de tomber ; et si le desserrage d'une partie de base se produit dans le processus de nécrose rectale, le fil de ligature (21) peut être davantage tendu pour éviter de tomber à l'avance.
PCT/CN2021/100318 2021-06-16 2021-06-16 Cercleuse à pression négative visuelle WO2022261850A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/100318 WO2022261850A1 (fr) 2021-06-16 2021-06-16 Cercleuse à pression négative visuelle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/100318 WO2022261850A1 (fr) 2021-06-16 2021-06-16 Cercleuse à pression négative visuelle

Publications (1)

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WO2022261850A1 true WO2022261850A1 (fr) 2022-12-22

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PCT/CN2021/100318 WO2022261850A1 (fr) 2021-06-16 2021-06-16 Cercleuse à pression négative visuelle

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334199A (en) * 1992-08-17 1994-08-02 Inbae Yoon Ligating instrument and methods of ligating tissue in endoscopic operative procedures
CN203089267U (zh) * 2013-03-22 2013-07-31 张扬 一种新型可照明式套扎器
CN208808584U (zh) * 2018-04-25 2019-05-03 山东健护医疗科技有限公司 一种弹力线自动套扎器
CN109730749A (zh) * 2019-03-06 2019-05-10 江苏特普优微创医疗科技有限公司 一种一次性使用肛肠弹力线套扎器用负压器
CN211796643U (zh) * 2020-01-14 2020-10-30 江西罡龙医疗器械有限公司 痔疮套扎组件
US20210015354A1 (en) * 2019-07-16 2021-01-21 Boston Scientific Scimed, Inc. Device and methods for inspection and treatment of hemorrhoids
CN112336416A (zh) * 2020-10-23 2021-02-09 张强 内窥镜下套扎装置
CN112472226A (zh) * 2020-12-11 2021-03-12 欣瑞德（江苏）医疗科技有限公司 多腔套扎头及使用该多腔套扎头的肛肠套扎器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334199A (en) * 1992-08-17 1994-08-02 Inbae Yoon Ligating instrument and methods of ligating tissue in endoscopic operative procedures
CN203089267U (zh) * 2013-03-22 2013-07-31 张扬 一种新型可照明式套扎器
CN208808584U (zh) * 2018-04-25 2019-05-03 山东健护医疗科技有限公司 一种弹力线自动套扎器
CN109730749A (zh) * 2019-03-06 2019-05-10 江苏特普优微创医疗科技有限公司 一种一次性使用肛肠弹力线套扎器用负压器
US20210015354A1 (en) * 2019-07-16 2021-01-21 Boston Scientific Scimed, Inc. Device and methods for inspection and treatment of hemorrhoids
CN211796643U (zh) * 2020-01-14 2020-10-30 江西罡龙医疗器械有限公司 痔疮套扎组件
CN112336416A (zh) * 2020-10-23 2021-02-09 张强 内窥镜下套扎装置
CN112472226A (zh) * 2020-12-11 2021-03-12 欣瑞德（江苏）医疗科技有限公司 多腔套扎头及使用该多腔套扎头的肛肠套扎器

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