WO2015139312A1 - 腹腔镜用穿刺器 - Google Patents

腹腔镜用穿刺器 Download PDF

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Publication number
WO2015139312A1
WO2015139312A1 PCT/CN2014/073884 CN2014073884W WO2015139312A1 WO 2015139312 A1 WO2015139312 A1 WO 2015139312A1 CN 2014073884 W CN2014073884 W CN 2014073884W WO 2015139312 A1 WO2015139312 A1 WO 2015139312A1
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WO
WIPO (PCT)
Prior art keywords
rod
puncturing
puncture
diameter
laparoscopic
Prior art date
Application number
PCT/CN2014/073884
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English (en)
French (fr)
Inventor
林超
Original Assignee
上海林超医疗设备科技有限公司
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.)
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Publication date
Application filed by 上海林超医疗设备科技有限公司 filed Critical 上海林超医疗设备科技有限公司
Priority to PCT/CN2014/073884 priority Critical patent/WO2015139312A1/zh
Publication of WO2015139312A1 publication Critical patent/WO2015139312A1/zh

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    • 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
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A61B2017/3433—Cannulas with different outer diameters of the cannula
    • 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
    • A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
    • A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
    • A61B2017/3484—Anchoring means, e.g. spreading-out umbrella-like structure

Definitions

  • the invention belongs to the field of medical instruments, and in particular relates to a puncturing device used in minimally invasive laparoscopic surgery.
  • the trocar is generally composed of a puncture handle, a lancet rod and a needle core.
  • the skin was cut with a scalpel, the needle core was inserted into the puncture rod to form a puncture device, and the needle core was pulled through the abdominal wall, and the surgical path of the laparoscope was successfully established.
  • the problem that is easy to encounter is that the puncture rod may slide back and forth in the puncture hole during the operation, which may easily cause damage to the abdominal organ; when the instrument is placed in the operation, the puncture device enters the abdominal cavity along with the instrument. Or when the device is pulled out, the instrument can be removed from the abdominal cavity together, and it cannot be fixed, and it is not convenient to replace the surgical instrument.
  • the puncture device Once the puncture device is pulled out of the abdominal cavity with the instrument, it needs to be penetrated again. It is often impossible to find the puncture mouth of the original muscle and peritoneum. If it is penetrated separately, it will cause multiple injuries. Moreover, under the pressure of the pneumoperitoneum, the puncture hole may cause problems such as subcutaneous emphysema.
  • the present invention has improved the lancet rod.
  • the outer surface of the puncture rod of the present invention has a varying diameter, The change in diameter causes the outer surface of the lancet rod to be undulating, and the undulation outside the lancet rod is from the largest diameter to the smallest diameter, and then to the next largest diameter section, namely:
  • Each of the outer surfaces of the puncturing rod has a large upper and lower diameter and a small intermediate diameter. Therefore, the outer portion of each of the puncture rods has a narrow shape in the middle and the bottom.
  • the shape of each of the puncturing rods is bamboo-like or beaded.
  • the segments are connected to extend throughout the trocar stem such that the entire trocar stem exhibits a broad, undulating outer surface, preferably the outer surface is continuous in the shape of a bamboo or bead.
  • the multi-segment wide and narrow outer surface allows the lancet rod to effectively control the up and down movement of the trocar.
  • the puncture device of the present invention has a plurality of bamboo-shaped undulations or beaded undulations on the puncture rod, and can be relatively fixed on the fascia, muscle or peritoneum under the surgical force, thereby playing a good fixing effect, so that the operation In the middle, the puncturing device does not slide back and forth in the puncture hole, and the doctor has the function of preventing accidental detachment and sliding in when the instrument is placed in the puncturing device operation and the instrument is replaced.
  • the puncture device of the present invention does not affect the normal operation of the surgical puncture and the extraction of the puncture device. Then, a series of continual punctures caused by accidental detachment of the puncturing device, multiple injuries, subcutaneous emphysema and the like are prevented, which increases the safety of the operation and reduces the suffering of the patient.
  • FIG. 1 is a perspective view of a trocar according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of a trocar according to another embodiment of the present invention.
  • Figure 1 shows a schematic view of a trocar according to one embodiment of the invention.
  • the upper part of the trocar is the trocar handle (1), and the lower part is the puncturing rod (2).
  • the outer surface of each segment of the puncture rod has a bamboo shape with a large diameter and a small intermediate diameter, and the outer surface of the entire puncture rod has a continuous bamboo shape.
  • the puncture needle core (which can be inserted into the puncture rod 2, not shown) is inserted into the puncture rod to form a puncture device. After penetrating the abdominal wall, the needle core is pulled out, and the puncture rod rod forms a passage for laparoscopic surgery.
  • the trocar rod according to the present invention can be relatively fixed on the fascia, the muscle or the abdominal wall after becoming the surgical path, preventing the abdominal organ damage caused by the puncturing of the puncturing device in the puncture hole during the operation, and
  • the instrument needs to be pulled out, put in or replaced during surgery, it is avoided to slide into the abdominal cavity with the consent of the device or accidentally with the instrument out of the abdominal cavity. Also, it is convenient to take out at the end of the operation.
  • each outer surface of the puncture rod (2) has two connected semi-beads with a large diameter of the upper and lower sides and a small intermediate diameter, and the outer surface of the entire puncture rod (2) has a continuous bead shape.
  • the lancet core (which can be inserted into the puncturing rod 2, not shown) is inserted into the puncturing rod to form a puncturing device. After penetrating the abdominal wall, the needle core is pulled out, and the puncturing rod (2) forms a laparoscopic operation. Pathway.
  • the puncture rod (2) according to the present invention can be relatively fixed on the fascia, muscle or abdominal wall after becoming the surgical path, preventing the abdominal organ caused by the puncturing of the puncturing device in the puncture hole during the operation.

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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

一种腹腔镜用穿刺器，包括穿刺手柄（1）和穿刺器杆（2），其中穿刺器杆具有直径大小分段变化的外表面，该外表面呈连续的竹节状或串珠状，以便在手术中相对固定，防止意外脱出或滑入，继而降低手术风险，减少病人痛苦。

Description

腹腔镜用穿刺器 技术领域
本发明属于医疗器械领域，具体的说涉及一种微创腹腔镜手术中使用的穿刺器。
背景技术
目前 , 在腹腔镜手术中使用穿刺器有 10mm 、 5mm 和 3mm 等型号。是腹腔镜手术中镜子、器械的进出通道。手术医生现在皮肤上切一个小口，用穿刺针刺入腹腔，注入二氧化碳。当压力到 12-14mmHg ，从切口刺入穿刺器。手术需要 3-5 个穿刺器。穿刺器内放入观察镜和器械从而在显示器观察下进行手术。
穿刺器一般由穿刺手柄、穿刺器杆和针芯组成。手术时，用手术刀切开皮肤，把针芯插入穿刺器杆中组成穿刺器，穿透腹壁后拔出针芯，就成功建立了腹腔镜的手术通路。在手术中，容易遇到的问题是，穿刺杆在手术操作中可能会在穿刺孔内来回滑动，容易造成腹腔脏器的损伤；在手术操作中放入器械时穿刺器随器械一同进入到腹腔或拔出器械时随器械一同脱出腹腔外，无法固定，不方便更换手术器械。一旦穿刺器随器械拔出腹腔，还需要再次穿入，往往不能找到原肌肉、腹膜的穿刺口，另行穿入又会造成多次损伤。而且穿刺孔在气腹的压力下，可能产生皮下气肿等问题。
 技术问题
因此，本发明的目的是提供一种可简单而又安全地相对可固定的腹腔镜穿刺器，以防止手术中意外脱出、滑入，以及避免由于意外的脱出滑入带来的一系列问题。
技术解决方案
为解决上述技术问题，本发明对穿刺器杆进行了改进。本发明的穿刺杆的外表面具有变化的直径， 直径的变化使得穿刺器杆外表面呈起伏状，穿刺器杆外部的起伏的从直径最大处到直径最小处，再到下一个直径最大处为一段，即： 所述穿刺器杆的每段外表面上下直径大，中间直径小。 因此，每段穿刺器杆外部呈上下宽中间窄的形状。优选地，每段穿刺器杆的外形呈竹节状或串珠状。各段相连延伸至整个穿刺器杆，使整个穿刺器杆呈现出宽窄起伏的外表面，优选地，所述外表面呈连续的竹节形或串珠形。 多段宽窄起伏的外表面，使得穿刺器杆可以有效地控制穿刺器的上下移动。
有益效果
本发明的穿刺器穿刺器因为穿刺器杆上多个竹节形起伏或串珠形起伏，在手术力量下也可被相对固定在筋膜、肌肉或腹膜上，起到了良好的固定作用，使得手术中，穿刺器不会来回在穿刺孔内滑动，医生在穿刺器操作中放入器械、更换器械时，具备了防止意外脱出、滑入的功能。同时，本发明的穿刺器也不影响手术穿刺正常开展和术后穿刺器的拔出。继而防止了由于穿刺器意外脱出滑入引起的反复穿刺，多次损伤、皮下气肿等一系列连带问题，增加了手术的安全性，减少了患者的痛苦。
附图说明
下文将通过附图详细说明本发明的优选实施方式。
图 1 是本发明所述一个实施例的穿刺器的的立体图。
图 2 是本发明所述的另一个实施例的穿刺器的的立体图。
 本发明的最佳实施方式
图1 显示根据本发明的一个实施例的穿刺器的示意图。穿刺器上部为穿刺器手柄（ 1 ），下部为穿刺器杆（ 2 ）。如图所示，穿刺器杆的每段外表面呈上下直径大、中间直径小的竹节状，整个穿刺器杆的外表面呈连续的竹节状。在使用过程中，穿刺器针芯（可插入穿刺器杆 2 中，未示出）插入穿刺器杆组成穿刺器，穿透腹壁后，拔出针芯，穿刺器杆形成腹腔镜手术的通路。在手术中，根据本发明的穿刺器杆在成为手术通路后，可以相对固定在筋膜、肌肉或腹壁上，防止了手术过程中穿刺器在穿刺孔中来回滑动造成的腹腔脏器损伤，并且当手术中需要拔出、放入或更换器械时，避免了随器械一同意外滑入腹腔或意外随器械脱出腹腔。并且，在手术结束时，方便取出。
本发明的实施方式
图2 显示根据本发明的一个实施例的穿刺器的示意图。穿刺器上部为穿刺器手柄（ 1 ），下部为穿刺器杆（ 2 ）。如图所示，穿刺器杆（ 2 ）的每段外表面呈上下直径大、中间直径小的两个相连的半珠状，整个穿刺器杆（ 2 ）的外表面呈连续的串珠状。在使用过程中，穿刺器针芯（可插入穿刺器杆 2 中，未示出）插入穿刺器杆组成穿刺器，穿透腹壁后，拔出针芯，穿刺器杆（ 2 ）形成腹腔镜手术的通路。在手术中，根据本发明的穿刺器杆（ 2 ）在成为手术通路后，可以相对固定在筋膜、肌肉或腹壁上，防止了手术过程中穿刺器在穿刺孔中来回滑动造成的腹腔脏器损伤，并且当手术中需要拔出、放入或更换器械时，避免了随器械一同意外滑入腹腔或意外随器械脱出腹腔。并且，在手术结束时，方便取出。
当然 ， 本发明并不局限于以上讨论的实施方式。人们可不使用竹节或串珠的外形，而采用类似的直径变化的形状。根据本发明的知识，本领域技术人员可引申出属于本发明主题的其他变体。

Claims (6)

  1. 一种腹腔镜用穿刺器 ，包括： 穿刺手柄和穿刺器杆 ；其中，所述穿刺器杆的外表面直径呈现大小变化。
  2. 如权利要求 1 所述的腹腔镜用穿刺器，其特征在于，所述穿刺器杆外表面的直径的大小变化呈规律的分段式变化。
  3. 如权利要求 2 所述的腹腔镜用穿刺器，其特征在于，所述穿刺器杆外表面分段式的直径变化中，所述穿刺器杆的每段外表面上下直径大，中间直径小。
  4. 如权利要求 3 所述的腹腔镜用穿刺器，其特征在于，穿刺器杆的上下直径大、中间直径小的每段外表面呈竹节状。
  5. 如权利要求4所述的腹腔镜用穿刺器，其特征在于，穿刺器杆的上下直径大、中间直径小的每段外表面为两个相连的半珠状。
  6. 如权利要求1-5之一所述的腹腔镜用穿刺器，其特征在于，所述穿刺器杆的外表面呈连续的竹节状或串珠状。
PCT/CN2014/073884 2014-03-21 2014-03-21 腹腔镜用穿刺器 WO2015139312A1 (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105943128A (zh) * 2016-04-16 2016-09-21 江苏风和医疗器材有限公司 一种穿刺器套管及具有其的穿刺器
CN105962998A (zh) * 2016-04-16 2016-09-28 江苏风和医疗器材有限公司 一种穿刺器套管及具有其的穿刺器
US11432844B2 (en) * 2016-07-22 2022-09-06 Intuitive Surgical Operations, Inc. Cannulas having body wall retention features, and related systems and methods

Citations (7)

* Cited by examiner, † Cited by third party
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EP0537768A1 (en) * 1991-10-18 1993-04-21 United States Surgical Corporation External laparoscopic sealing means
US5766163A (en) * 1996-07-03 1998-06-16 Eclipse Surgical Technologies, Inc. Controllable trocar for transmyocardial revascularization (TMR) via endocardium method and apparatus
US5792112A (en) * 1995-10-20 1998-08-11 Applied Medical Resources Corporation Trocar with electrical discharge path
US20020193806A1 (en) * 1996-02-29 2002-12-19 Stephen P. Moenning Apparatus and procedure for protecting a port site opening in the wall of a body cavity and reducing electrosurgical injuries
US20030045892A1 (en) * 1999-10-22 2003-03-06 George Kaladelfos Surgical instrument
CN202376191U (zh) * 2011-11-01 2012-08-15 东莞微视医疗科技有限公司 一次性腹腔镜用的可视穿刺器
CN103083065A (zh) * 2011-11-07 2013-05-08 苏州天臣国际医疗科技有限公司 穿刺器套管组件

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0537768A1 (en) * 1991-10-18 1993-04-21 United States Surgical Corporation External laparoscopic sealing means
US5792112A (en) * 1995-10-20 1998-08-11 Applied Medical Resources Corporation Trocar with electrical discharge path
US20020193806A1 (en) * 1996-02-29 2002-12-19 Stephen P. Moenning Apparatus and procedure for protecting a port site opening in the wall of a body cavity and reducing electrosurgical injuries
US5766163A (en) * 1996-07-03 1998-06-16 Eclipse Surgical Technologies, Inc. Controllable trocar for transmyocardial revascularization (TMR) via endocardium method and apparatus
US20030045892A1 (en) * 1999-10-22 2003-03-06 George Kaladelfos Surgical instrument
CN202376191U (zh) * 2011-11-01 2012-08-15 东莞微视医疗科技有限公司 一次性腹腔镜用的可视穿刺器
CN103083065A (zh) * 2011-11-07 2013-05-08 苏州天臣国际医疗科技有限公司 穿刺器套管组件

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105943128A (zh) * 2016-04-16 2016-09-21 江苏风和医疗器材有限公司 一种穿刺器套管及具有其的穿刺器
CN105962998A (zh) * 2016-04-16 2016-09-28 江苏风和医疗器材有限公司 一种穿刺器套管及具有其的穿刺器
US11432844B2 (en) * 2016-07-22 2022-09-06 Intuitive Surgical Operations, Inc. Cannulas having body wall retention features, and related systems and methods

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