WO2020125029A1 - Dispositif de piqûre - Google Patents

Dispositif de piqûre Download PDF

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Publication number
WO2020125029A1
WO2020125029A1 PCT/CN2019/100437 CN2019100437W WO2020125029A1 WO 2020125029 A1 WO2020125029 A1 WO 2020125029A1 CN 2019100437 W CN2019100437 W CN 2019100437W WO 2020125029 A1 WO2020125029 A1 WO 2020125029A1
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WO
WIPO (PCT)
Prior art keywords
deformable body
channel
hole
air
surgical
Prior art date
Application number
PCT/CN2019/100437
Other languages
English (en)
Chinese (zh)
Inventor
朱健
刘国宁
高俊
Original Assignee
江苏人冠医疗科技有限公司
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 江苏人冠医疗科技有限公司 filed Critical 江苏人冠医疗科技有限公司
Publication of WO2020125029A1 publication Critical patent/WO2020125029A1/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
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3476—Powered trocars, e.g. electrosurgical cutting, lasers, powered knives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B2017/3419—Sealing means between cannula and body

Definitions

  • the invention relates to the medical field, in particular to a puncture device.
  • Disposable puncture device is an important instrument in laparoscopic surgery. It is a matching surgical instrument for thoracic cavity and laparoscopic surgery. It is suitable for thoracic cavity and laparoscopic surgery and an instrument for establishing a working channel for thoracic cavity and abdominal cavity during surgery .
  • the minimally invasive surgical methods represented by laparoscopic surgery have developed rapidly in recent years, especially in gynecology, general surgery and other operations involving the abdominal cavity, are gradually changing from open to intracavity Minimally invasive surgery.
  • 2 to 5 puncture holes are generally used. One is used to place the laparoscope, and the remaining holes are used to place surgical instruments.
  • the outer diameter of the surgical instruments is roughly divided into 5mm, 10mm, 12mm, and 15mm.
  • a matching inner diameter puncture cannula is provided to avoid leakage of pneumoperitoneum and affect the operation.
  • the electrocautery in the puncture device will inevitably produce a large amount of smoke and water vapor when burning or coagulating human tissue.
  • the smoke generated by the burning of this organic matter is a strong carcinogen and will affect the operator and Medical personnel in the operating room cause unnecessary injuries, and when performing deep surgery on the human body, especially when scorching deep blood vessels and other important organs, the smoke will blur the electron microscope inside, affecting the medical staff's sight, causing difficulty in hemostasis, even The operation is blind or busy, so a smoke removal device is needed to ensure the smooth operation of the operation.
  • the main purpose of the present invention is to overcome the shortcomings of the prior art, and discloses a puncture device, which includes a puncture rod for causing a penetration hole and a sleeve that is set outside the puncture rod as a surgery
  • the sheath tube assembly of the channel further includes an exhaust port
  • the sheath tube assembly includes an inner tube and an outer tube
  • the outer tube is sleeved on the outer side of the inner tube to form an interlayer
  • the thin end of the inner tube is provided with an opening
  • a smoke exhaust channel is provided in the interlayer, and the smoke exhaust channel communicates the opening with the exhaust port.
  • it also includes an air inlet and an air inlet channel, an air outlet is provided at the thin end of the outer tube, and the air inlet channel communicates the air inlet with the air outlet.
  • the thin end of the outer tube is uniformly provided with at least one elongated air outlet extending from the center of the thin end of the outer tube to the outer periphery.
  • baffles are disposed in the interlayer, and the interlayer is divided into the air intake channel and the smoke exhaust channel.
  • a seal for opening and closing the surgical channel is also included.
  • the sealing member includes a deformable body made of a flexible material, a gas inlet and outlet channel is provided on the deformable body, and the gas inlet and outlet channels are respectively connected to the air inlet and the air outlet through a valve, And the deformation body is provided with a through hole, and the center of the through hole is on the same straight line as the central axis of the inner tube; when the intake air is in, the deformation body expands to shrink the through hole; when exhausting, The deformable body contracts and the through hole expands.
  • the deformable body is provided separately and is composed of at least two parts.
  • the deformable body has a ring shape, and the through hole is provided at the center of the deformable body.
  • a guide frame for restricting and guiding expansion of the deformable body toward the center of the through hole is provided around the deformable body.
  • the flexible material is one of rubber, plastic, thermoplastic elastomer and fabric with a sealing layer.
  • the opening By setting the opening at the thin end of the sheath assembly, the opening is placed near the surgical instrument, and the opening is small. Therefore, the suction force at the opening is large, and the smoke near the surgical instrument can be quickly sucked away to maintain a clear view of the operating area; Moreover, a plurality of crescent-shaped air outlets are evenly arranged. Similarly, the elongated air outlet accelerates the gas injection speed, and the gas can be injected farther, reducing the interference with the air flow of the smoke exhaust port, and achieving the circulation of gas in the abdominal cavity.
  • the adaptability is strong, the through hole can be adjusted according to the size of the surgical instrument, and the sealing performance is reliable, and the product is safe for clinical use.
  • it is used in conjunction with the guide frame to ensure that the deformable body expands toward the center of the through hole, so that the deformable body closely fits the surgical instrument, which greatly improves the tightness; through the gas inlet and outlet channels, the gas inside the deformable body is controlled to pass the The hole is contracted until it is sealed, and the through hole can also be expanded to facilitate the replacement of surgical instruments and the removal of tissue excisions.
  • FIG. 1 is a perspective view of a puncture device of the present invention
  • FIG. 2 is a plan view of the structure of the sheath assembly
  • Figure 3 is a right side view of the sheath assembly
  • FIG. 4 is a cross-sectional view of L-L in FIG. 3;
  • FIG. 5 is a cross-sectional view of B-B in FIG. 2;
  • FIG. 6 is a cross-sectional view of C-C in FIG. 2;
  • FIG. 7 is a cross-sectional view of Q-Q in FIG. 3;
  • Figure 8 is a schematic diagram of the structure of the seal
  • Figure 9 is a schematic diagram of the installation of the guide frame
  • Figure 10 is a top view of the guide frame
  • FIG. 11 is a cross-sectional view of B-B in FIG. 10;
  • FIG. 13 is a cross-sectional view of M-M in FIG. 3;
  • FIG. 14 is a cross-sectional view of O-O in FIG. 3;
  • Figure 16 is a schematic diagram of duckbill valve installation
  • Puncture rod 2. Sheath tube assembly, 3. Seals, 11. Duckbill valve, 21, outer tube, 22, inner tube, 23, smoke exhaust channel, 24, air intake channel, 25, partition, 26 , Through hole, 31, deformable body, 32, gas inlet and outlet channels, 33, guide frame, 34, fixed side, 35, intake valve, 36, exhaust valve, 41, first channel, 42, second channel, 43 , Third channel, 211, exhaust port, 212, air inlet, 213, air outlet, 221, opening, 311, through hole, 331, guide plate, 332, support plate, 333, positioning column, 334, positioning hole , 341, fixing holes.
  • a puncture device includes a puncture rod 1 for creating a penetration port and a sheath tube assembly 2 sleeved on the outside of the puncture rod 1 as a surgical channel.
  • the sheath tube assembly 2 includes external The tube 21 and the inner tube 22, the outer tube 21 is sleeved with the outer side of the inner tube 22, and the thin ends of the outer tube 21 and the inner tube 22 are connected together to form an interlayer; it is conceivable that in order to make the sheath tube assembly 2 convenient Inserted into the abdominal cavity, the thin end of the outer tube 21 gradually gathers from the top to the center.
  • the head of the outer tube 21 is also provided with an exhaust port 211 for exhaust.
  • a smoke exhaust channel 23 is provided in the interlayer, and an opening 221 is provided at the thin end of the inner tube 22, and the exhaust port 211 is communicated with the opening 221 through the smoke exhaust channel.
  • the interlayer can be directly used as the smoke exhaust channel 23 to connect the exhaust port 211 and the buckle 221; a pipeline can also be additionally provided as the smoke exhaust channel 23 in the interlayer, and the interlayer can be used as the protective sleeve of the pipeline.
  • it further includes an air inlet 212 and an air inlet channel 24.
  • the air inlet 212 is provided at the head of the outer tube 21, and an air outlet 213 is provided at the thin end of the outer tube 21.
  • the port 212 communicates with the air outlet 213; that is, the gas enters the air intake passage 24 through the air inlet 212, and then is discharged from the air outlet 213.
  • the air outlet 213 is of an elongated structure and has a crescent shape. At least one air outlet 213 is provided at the thin end of the outer tube 21 extending from the center of the thin end of the outer tube 21 to the outer periphery.
  • the slender outlet can accelerate the speed of gas injection, so that the gas can be sprayed farther, and reduce the interference to the air flow of the smoke exhaust port.
  • a plurality of gas outlets 213 are evenly arranged around the thin end of the outer tube 21 so that gas can be sprayed into place at various angles.
  • two partitions 25 are provided vertically in the interlayer of the outer tube 21 and the inner tube 22 to divide the interlayer into an intake channel 24 and a smoke exhaust channel 23, opening 221 between the two partitions 25 of the smoke exhaust channel.
  • the opening 221 By setting the opening 221 at the thin end of the sheath assembly 2, the opening is located near the surgical instrument, and the opening 221 is small, therefore, the suction force at the opening 211 is large, and the smoke near the surgical instrument can be quickly sucked away to maintain the operation
  • the field of view is clear; and multiple crescent-shaped air outlets 213 are evenly arranged.
  • the elongated air outlet 213 accelerates the gas injection speed, and the gas can be injected farther. If the air outlet 213 is set too large, the gas injection speed is slow, and can only be sprayed near the air outlet 213, and the suction force at the opening 221 is large.
  • the gas just ejected from the air outlet 213 is immediately discharged by the opening 221, which greatly reduces the smoke exhaust effect.
  • a seal 3 for opening and closing the surgical channel is also included.
  • the seal 3 is provided at the head of the inner tube 22.
  • the seal 3 closely fits the surgical instrument to achieve The effect of sealing; when the surgical instruments and tissue shears are taken out, the sealing member 3 is opened to facilitate its removal, and after the removal, the sealing member 3 is sealed again to partition the surgical channel.
  • the sealing member 3 includes a deformable body 31 made of a flexible material, and a gas inlet and outlet channel 32 is provided on the deformable body, which expands or contracts by inflating or exhausting the deformable body;
  • the inlet and outlet channels 32 can be opened and closed by the intake valve 35 and the exhaust valve 36, thereby achieving the intake and exhaust functions.
  • only one air hole is provided on the deformable body 31, and the air hole is compatible with the air intake and exhaust functions.
  • the air hole is externally connected to two valves, and the air intake and exhaust functions are realized by valve control. It is also possible to set two air holes independently to achieve exhaust and intake.
  • the deformable body 31 is provided with a through hole 311 through which surgical instruments enter the abdominal cavity.
  • the center of the through hole 311 is on the same straight line as the central axis of the inner tube 22; when the intake valve 35 opens, the gas enters the deformable body, the deformable body expands, shrinks the through hole 311, and wraps the surgical instrument to achieve the sealing function; No surgical instrument is placed in the hole 311, the interior of the deformable body is inflated, and the through hole 311 is contracted until it is closed.
  • the exhaust valve 36 When the inlet port is closed, the exhaust valve 36 is opened, and the gas inside the deformed body is discharged, the deformed body contracts and the through hole 311 expands, so that the surgical instrument can be easily taken out; in addition, the gas in the deformed body is carried out through the gas inlet and outlet channels 32 Pumping, because the deformable body is made of a flexible material, the through hole 311 expands toward the periphery of the deformable body, and the diameter of the through hole 311 is opened to the maximum, which does not affect the placement and removal of surgical instruments.
  • the cross section of the deformable body 31 is a symmetrical vertebral structure. It is conducive to the contraction of the through hole 311.
  • the deformable body 31 is provided separately, and is composed of at least two parts.
  • the deformable body 31 is formed by joining two parts; this can improve the tightness of the through hole 311.
  • the deformable body 31 is infinitely divided into several parts around the center of the through hole 311, it is conceivable that when each part is inflated, each part expands toward the center of the circle, and a better sealing effect can be achieved.
  • the deformable body 31 is a split structure, as shown in FIG.
  • the cross-section of the deformable body 31 is a vertebral structure, because the deformable body is composed of two parts, and the connecting seam is equivalent to the through hole 311 through which the surgical instrument passes Therefore, no additional through hole 311 is required, and the sealing effect can be satisfied.
  • the deformable body 31 has a ring shape, and the through hole 311 is provided in the center of the deformable body 31.
  • the deformable body 31 and the through hole 311 are concentric circles, which ensures that the deformable body 31 receives uniform force when inflated, avoids excessive expansion of some positions, causes the deformable body 31 to expand and deform, and affects the tightness of the through hole 311.
  • the flexible material is rubber, and the rubber is a highly elastic polymer compound, which has elasticity and good sealing performance. When inflated, it can be closely attached to surgical instruments.
  • the flexible material can also be plastic, thermoplastic elastomer or fabric with a sealing layer.
  • a guide frame 33 for restricting and guiding the expansion of the deformable body 31 toward the center of the through hole 311 is provided around the deformable body 31.
  • the guide frame 33 includes a guide plate 331 and a support plate 332.
  • the guide plate 331 is mounted on the support plate 332 and has a cross-sectional shape of "concave".
  • the deformable body 31 is disposed between the guide plate 331 and the support plate 332 In the concave-shaped groove, the deformation body 31 is restricted from expanding upward and downward, so that it expands and deforms toward the center of the through hole 3.
  • a plurality of positioning posts 333 are provided on the contact surface of the guide plate 331 and the support plate 332, and positioning holes 334 matching the fixed positions 511 are provided at corresponding positions of the support plate 332.
  • the plate 332 can be firmly connected together, and the positioning hole 334 and the positioning post 333 have an interference fit.
  • the positioning post 333 protrudes from the positioning hole 334 to fix the protruding portion with the puncture device. It is possible to avoid setting more installation parts.
  • a fixed edge 34 is provided on the periphery of the deformable body 31.
  • the fixed edge 34 is fixed to the guide frame 33 to prevent the deformable body 31 from shifting, which affects the sealing effect of the through hole 311.
  • a fixing hole 341 corresponding to the positioning post 333 can be provided on the fixing transformer 34.
  • a plurality of deformation bodies 31 may be superposed. Two deformable bodies 31 are usually arranged in parallel.
  • the outer tube 21 is sleeved on the outer side of the inner tube 22, and the three seal rings provided by the coaxial core in the interlayer of the head, as shown in FIG. 5,
  • the interlayer is horizontally divided into a first air passage 41 and a second air passage 42, as shown in FIG. 14, a through hole 26 is provided at a position corresponding to the end of the inner pipe 22 and the smoke exhaust passage 23, so that the second air passage 42 and the exhaust The smoke passage 23 communicates, and the second air passage 42 is connected to the exhaust port 211.
  • the sealing member 3 is sealed and fixed to the inner tube 22 by two sealing rings, and a third air passage 43 is formed by the two sealing rings.
  • the gas inlet and outlet channels 32 of the sealing member 3 are directly connected to the third channel 43, and the inner tube A connection hole is formed in 22 to connect the second channel 42 and the third channel 43 as shown in FIG. 15.
  • the gas inlet and outlet passage 32 of the deformable body 31 communicates with the inlet port 212 and the outlet port 211 through the inlet valve 35 and the outlet valve 36, respectively.
  • the intake passage 24 directly communicates with the intake port 212.
  • the air source directly enters the air intake channel 24 from the air inlet 212 and is discharged from the air outlet 213 to inflate the abdominal cavity.
  • the air pump draws air through the smoke exhaust channel 23.
  • the gas from the opening 221 enters the flue gas passage 23, then enters the second air passage 42, and then is directly discharged from the exhaust port 211.
  • the opening 221 Since the end of the air outlet 213 is positive pressure, the opening 221 is negative pressure, and the pressure difference between the two places is large , So that the smoke generated during surgery can be quickly discharged from the opening 221; and because the opening 221 is provided at the end of the thin end of the inner tube 22, it is close to the surgical instrument, and the opening 221 has a large suction force, which can quickly bring the instrument near The smoke is drawn away to ensure a clear field of vision near the instrument.
  • the air inlet valve 35 is opened, the gas at the air inlet 213 enters the third air passage 43 through the first air passage 41, and then enters and exits from the gas
  • the channel 32 enters the deformable body 31, expands the deformable body 31, and closely adheres to the surgical instrument to realize the sealing function.
  • the intake valve 35 is closed, and the exhaust valve 36 is opened. With the negative pressure of the air pump, the gas in the deformable body 31 is quickly discharged, and the deformable body contracts in reverse to open the through hole 311, which is convenient for surgery Remove instruments and tissue excisions.
  • a duckbill valve 11 is also provided in the surgical channel to further ensure the sealing of the surgical channel; when the puncture rod 1 is pulled out, the surgical instrument has not been inserted, and the seal 3 The hole may not be able to seal the surgical channel very well.
  • the sealing of the surgical channel can be well guaranteed, and the gas in the abdominal cavity can be prevented from deflating through the surgical channel.
  • the thin end is the lower part as shown in FIG. 1, and the head refers to the upper part as shown in FIG.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

La présente invention concerne un dispositif de piqûre comprenant une tige de piqûre (1) pour effectuer une perforation, un ensemble gaine (2) emmanché sur le côté externe de la tige de piqûre (1) comme canal chirurgical, et un orifice d'évacuation (211), l'ensemble gaine (2) comprenant un tube interne (22) et un tube externe (21) emmanché sur le côté externe du tube interne (22) pour former une intercouche, l'extrémité plus fine du tube interne (22) étant pourvue d'une ouverture (221), un passage d'évacuation de fumée (23) étant disposé dans l'intercouche et faisant communiquer l'ouverture (221) avec l'orifice d'évacuation (211). La fumée est évacuée de l'espace chirurgical en même temps que l'air pénètre dans l'espace chirurgical, de sorte que le flou de lentille provoqué par la fumée peut être éliminé pour éviter d'affecter la vision du personnel médical, et améliorer l'efficacité chirurgicale. Pendant ce temps, la structure d'étanchéité du coussin d'air présente une conception ingénieuse avec une étanchéité fiable pour les instruments chirurgicaux de différentes tailles, et le produit est d'une utilisation clinique sûre.
PCT/CN2019/100437 2018-12-17 2019-08-13 Dispositif de piqûre WO2020125029A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811539891.2 2018-12-17
CN201811539891.2A CN109498122B (zh) 2018-12-17 2018-12-17 一种穿刺器

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WO2020125029A1 true WO2020125029A1 (fr) 2020-06-25

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WO (1) WO2020125029A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109498121B (zh) * 2018-12-17 2020-05-15 江苏人冠医疗科技有限公司 一种用于穿刺器的密封件及穿刺器
CN109498122B (zh) * 2018-12-17 2020-04-14 江苏人冠医疗科技有限公司 一种穿刺器
CN112603478A (zh) * 2020-12-16 2021-04-06 常州安康医疗器械有限公司 一种密封性好的球囊穿刺器
CN113331890A (zh) * 2021-06-03 2021-09-03 江苏人冠医疗科技有限公司 一种腔镜手术器械平台
CN114191009B (zh) * 2021-12-15 2024-08-23 江苏人冠医疗科技有限公司 一种管路连接结构及腔镜烟雾循环系统

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CN102151167A (zh) * 2011-04-22 2011-08-17 上海英诺伟微创医疗器械有限公司 多通道单孔腹腔镜手术穿刺器
WO2014028428A1 (fr) * 2012-08-13 2014-02-20 Tel-Hashomer - Medical Research, Infrastructure And Services Ltd. Aiguille de veress améliorée
WO2014122317A1 (fr) * 2013-02-11 2014-08-14 Pajunk GmbH Medizintechnologie Trocart
CN203815544U (zh) * 2014-01-16 2014-09-10 南方医科大学珠江医院 单孔腹腔镜穿刺器
CN106214191A (zh) * 2016-08-24 2016-12-14 魏云海 一种气压平衡的穿刺器
CN107260270A (zh) * 2017-08-17 2017-10-20 拓普能量（天津）科技有限公司 一种吸烟型医用穿刺器系统
CN109498122A (zh) * 2018-12-17 2019-03-22 江苏人冠医疗科技有限公司 一种穿刺器

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CN202376190U (zh) * 2011-10-21 2012-08-15 中国人民解放军第三军医大学第三附属医院 腔镜穿刺器

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Publication number Priority date Publication date Assignee Title
CN102151167A (zh) * 2011-04-22 2011-08-17 上海英诺伟微创医疗器械有限公司 多通道单孔腹腔镜手术穿刺器
WO2014028428A1 (fr) * 2012-08-13 2014-02-20 Tel-Hashomer - Medical Research, Infrastructure And Services Ltd. Aiguille de veress améliorée
WO2014122317A1 (fr) * 2013-02-11 2014-08-14 Pajunk GmbH Medizintechnologie Trocart
CN203815544U (zh) * 2014-01-16 2014-09-10 南方医科大学珠江医院 单孔腹腔镜穿刺器
CN106214191A (zh) * 2016-08-24 2016-12-14 魏云海 一种气压平衡的穿刺器
CN107260270A (zh) * 2017-08-17 2017-10-20 拓普能量（天津）科技有限公司 一种吸烟型医用穿刺器系统
CN109498122A (zh) * 2018-12-17 2019-03-22 江苏人冠医疗科技有限公司 一种穿刺器

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