WO2021109547A1 - 一种双动力腔内切割吻合器 - Google Patents

一种双动力腔内切割吻合器 Download PDF

Info

Publication number
WO2021109547A1
WO2021109547A1 PCT/CN2020/097597 CN2020097597W WO2021109547A1 WO 2021109547 A1 WO2021109547 A1 WO 2021109547A1 CN 2020097597 W CN2020097597 W CN 2020097597W WO 2021109547 A1 WO2021109547 A1 WO 2021109547A1
Authority
WO
WIPO (PCT)
Prior art keywords
rack
connecting block
manual closing
closing handle
handle
Prior art date
Application number
PCT/CN2020/097597
Other languages
English (en)
French (fr)
Inventor
姚大强
邹锋
朱东东
于远宾
夏玉波
Original Assignee
山东威瑞外科医用制品有限公司
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
Priority claimed from CN201922177671.6U external-priority patent/CN211243533U/zh
Priority claimed from CN201911237029.0A external-priority patent/CN110801256A/zh
Application filed by 山东威瑞外科医用制品有限公司 filed Critical 山东威瑞外科医用制品有限公司
Priority to JP2022533346A priority Critical patent/JP7480299B2/ja
Publication of WO2021109547A1 publication Critical patent/WO2021109547A1/zh

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously

Definitions

  • the invention relates to the technical field of medical devices, and further relates to a dual-power intracavity cutting stapler.
  • the stapler is a medical device used to replace manual sutures.
  • the main working principle is to use titanium nails to break or anastomose tissues, similar to a stapler.
  • Intracavitary cutting staples have been widely used in a variety of open and minimally invasive general surgery, obstetrics and gynecology, urology, thoracic surgery and pediatric surgery.
  • the driving mode of the intracavity cutting stapler mainly includes electric and manual manual.
  • the opening and closing of the manual stapler requires manual operation, the operation process is cumbersome, and when cutting thick human tissues, the holding force is large, even There is hand shaking, which cannot achieve a uniform and stable cutting effect;
  • the electric intracavity cutting stapler is driven by electricity, and the jaws of the cutting assembly of the electric intracavity cutting stapler are closed and opened, as well as the advance and retreat of the cutting blade.
  • Electric drive is adopted to simplify the operation steps, the operation is simple and labor-saving, the cutting speed is uniform, and the nail formation is stable.
  • the electric stapler is equipped with a closing force feedback indicator
  • the cutting situation can only be observed by the naked eye during the cutting process, or the cutting force can be judged through the indicator screen of the instrument, and it cannot provide tactile feedback to the human body, and cannot select the appropriate closing height for the doctor.
  • the components provide intuitive feedback.
  • the present invention provides a dual-power intracavity cutting stapler, which can independently drive the rack connecting block to move by manually closing the handle to provide tactile feedback for the operator.
  • the specific scheme is as follows:
  • a dual-power intracavity cutting stapler including:
  • the rack connecting block is slidably connected to the distal end of the drive rack; the distal end of the rack connecting block is detachably connected to a push rod, and the distal end of the push rod is connected to a cutting assembly;
  • the manual closing handle is rotatably connected to the main body through the handle connecting shaft, and the rotation of the manual closing handle can drive the rack connecting block to move relative to the driving rack.
  • a T-shaped connection block is protruded from the proximal end of the rack connection block, and the T-shaped connection block is inserted into the cavity of the drive rack.
  • the rack connecting block is provided with a groove with a bottom opening in the longitudinal direction; the upper part of the manual closing handle is rotated to provide a pawl, and the pawl can extend into the groove of the rack connecting block , When the manual closing handle is closed, the pawl pushes the rack connecting block to move to the distal end.
  • the manual closing handle further includes a sliding key, and when the manual closing handle is opened, the sliding key pushes the rack connecting block to move toward the proximal end.
  • the sliding key includes a sliding key main body, the top end of the sliding key main body is hinged with a knife retracting pawl, and the knife retracting pawl can only reciprocate to the proximal end.
  • an escape hole is provided on the pawl, and the knife withdrawal pawl can protrude upward from the escape hole;
  • a torsion spring is provided at the rotating shaft of the pawl, so that the pawl presses on the rack connecting block;
  • a torsion spring is arranged at the connecting shaft of the handle, so that the manually closed handle has a tendency to open.
  • a spring pin is slidably provided in the top end cavity of the sliding key body, and the spring pin is maintained in an initial state by a compression spring provided in the sliding key body.
  • the sliding key main body can slide in the manual closing handle, and the bottom end of the sliding key main body is provided with a jacking spring;
  • It also includes a closing locking pin slidably arranged in the manual closing handle, the sliding direction of the closing locking pin is perpendicular to the rotating surface of the manual closing handle; the closing locking pin is used to drive the sliding key The main body moves down.
  • the push rod can drive the closing rod on the cutting assembly to move, and when the closing rod moves to the distal end, it presses on the wedge-shaped surface of the staple cartridge to close the staple cartridge.
  • the invention provides a dual-power intracavity cutting anastomat, a driving rack is driven by a driving device to move in translation; a rack connecting block is slidably connected to the distal end of the driving rack, and the rack connecting block can be within a certain range relative to the rack
  • the inner part slides relatively, and the drive rack can push the rack connecting block to move synchronously;
  • the remote end of the rack connecting block can be detachably connected to the push rod, and the remote end of the push rod can be connected to the cutting assembly, and the rack connecting block is synchronized with the push rod Move;
  • the manual closing handle is connected to the main body through the rotation of the handle connecting shaft. The manual closing handle can rotate relative to the main body.
  • the rack connecting block can be driven to move relative to the driving rack; when in use, the operator can manipulate Manually close the handle to make the rack connecting block move independently relative to the drive rack.
  • the jaws can be closed and opened by gripping and pushing the manual closing handle. The closing force is directly fed back to the manual closing handle to provide tactile feedback. Provide guidance on the appropriate selection of cutting components.
  • Figure 1 is an overall appearance view of the dual-power intracavity cutting stapler of the present invention
  • Figure 2A is a schematic diagram of the internal structure of the body part
  • Figure 2B is a schematic diagram of the structure of the manual closing handle
  • Figure 2C is a partial structural diagram of the rack connecting block and the driving rack cooperating with each other;
  • 2D and 2E are respectively an exploded view and an axonometric view of the second embodiment of the rack connecting block and the driving rack;
  • Figures 3A to 3C are the entire structure diagram, exploded diagram and two motion state diagrams of the sliding key respectively;
  • Figure 4A is an axonometric view of the mutual cooperation of the pawl, the sliding key and the closing lock pin;
  • Figure 4B is a cross-sectional structure diagram of the manually closed handle
  • Figure 4C is a schematic diagram of the closed locking pin being restricted
  • 5A is a structural diagram of the opened state of the cutting assembly when the stapler body and the cutting assembly are assembled with each other;
  • 5B and 5C are respectively a partial structure diagram of the stapler body and a partial structure diagram of the cutting assembly in the corresponding state of FIG. 5A;
  • Figure 6A is a structural diagram of the closed state of the cutting assembly when the stapler body and the cutting assembly are assembled with each other;
  • 6B and 6C are respectively a partial structure diagram of the stapler body and a partial structure diagram of the cutting assembly in a state corresponding to FIG. 6A.
  • the figure includes:
  • the core of the present invention is to provide a dual-power intracavity cutting stapler, which can independently drive the rack connecting block to move by manually closing the handle, and provide tactile feedback for the operator.
  • Figure 1 it is the overall appearance of the dual-powered intracavity cutting stapler of the present invention, including the stapler body and replaceable cutting components;
  • Figure 2A is a schematic diagram of the internal structure of the body part; including the drive rack 1, The rack connecting block 2, the manual closing handle 3 and other structures; the driving rack 1 is driven by the driving device 4 to move in translation, and the driving rack 1 and the driving device 4 are respectively installed in the body.
  • the driving device 4 can be in the form of a geared motor, etc.
  • the driving rack 1 and the driving device 4 are driven by gears.
  • the driving rack 1 is guided by a slideway provided in the body. Under the driving of the driving device 4, the driving rack 1 can slide back and forth along its own length.
  • the transmission ratio of the planetary gear reduction mechanism is more than 400, and the internal resistance of the reduction motor is very large.
  • the output gear of the reduction motor can be considered to be completely locked by the internal resistance.
  • the drive gear The bar 1 is also locked due to meshing with the transmission gear of the power unit.
  • the rack connecting block 2 is slidably connected to the distal end of the driving rack 1, and the rack connecting block 2 can reciprocate within a certain range relative to the driving rack 1.
  • the moving direction of the rack connecting block 2 is the same as that of the driving rack 1.
  • the moving direction is the same; the distal end of the rack connecting block 2 is detachably connected to the push rod 5, and the distal end of the push rod 5 is provided with a cutting assembly 6, which drives the cutting assembly 6 when the push rod 5 moves.
  • the end close to the gripping part is called the proximal end
  • the end away from the gripping part is correspondingly called the telecentric end.
  • the right side is the proximal end
  • the left side is the distal end.
  • FIG. 2B it is a schematic structural diagram of the manual closing handle 3; the manual closing handle 3 is rotatably connected to the stapler body through the handle connecting shaft 31, and the manual closing handle 3 can rotate around the handle connecting shaft 31 and swing back and forth relative to the stapler body .
  • the top end of the manual closing handle 3 can be in contact with the rack connecting block 2, and when the manual closing handle 3 rotates, the rack connecting block 2 can be driven to move relative to the driving rack 1.
  • the operator manipulates the manual closing handle to make the rack connecting block move separately with respect to the drive rack, and close and open the jaws by grasping and pushing the manual closing handle; when the cutting assembly needs to be closed, the manual The bottom end of the closing handle 3 is close to the main body, and when the cutting assembly is relaxed, the bottom end of the manual closing handle 3 is moved away from the main body.
  • the opening and closing of the cutting assembly are synchronized with the rotation of the manual closing handle 3.
  • the closing force is directly fed back to the manual closing handle, providing tactile feedback, and providing appropriate selection of the cutting assembly guide.
  • the thrust value is about 50-250N. Within this range, the selection of the cutting assembly is considered to be more suitable for the thickness of the tissue closure.
  • FIG. 2C it is a partial structural diagram of the mutual cooperation of the rack connecting block 2 and the driving rack 1; the proximal end of the rack connecting block 2 is protrudingly provided with a T-shaped connecting block 21, the end of the T-shaped connecting block 21 An enlarged structure is provided to limit the position; a cavity is provided at the distal end of the drive rack 1, the opening size of the cavity is smaller than the internal size, and the length direction of the cavity is the same as the length direction of the drive rack 1, T
  • the type connecting block 21 is inserted into the cavity of the driving rack 1; the expansion part of the driving rack 1 can extend into this cavity, and the range of motion of the rack connecting block 2 is divided by the T-shaped connecting block 21 and the driving rack 1 telecentric
  • the cavities at the end are jointly determined.
  • FIGS 2D and 2E are respectively an exploded view and a isometric view of the second embodiment of the rack connecting block and the driving rack.
  • One end of the rack connecting block 2 is provided
  • the convex block has a waist-shaped hole, and the length direction of the waist-shaped hole is consistent with the length direction of the rack connecting block 2; a slot is provided at one end of the driving rack 1, and the convex block at the end of the rack connecting block 2 can be inserted
  • a connecting pin is inserted on the driving rack 1
  • the connecting pin is inserted into the waist-shaped hole to connect the driving rack 1 and the rack connecting block 2 movably, and the sliding of the rack connecting block 2 is limited by the waist-shaped hole Scope; Therefore, as long as the rack connecting block 2 and the driving rack 1 adopt a sliding connection driving form, they should be protected by the present invention.
  • the rack connecting block 2 is provided with a groove with a bottom opening in the length direction, and the top end of the manual closing handle 3 extends into this groove to cooperate with the rack connecting block 2; specifically, a pawl is rotated on the upper part of the manual closing handle 3 33.
  • the rotating shaft of the pawl 33 is at the proximal end, and the distal end of the pawl 33 is movable; the pawl 33 can extend into the groove of the rack connecting block 2, and the pawl 33 pushes the tooth when the manual closing handle 3 is closed.
  • the bar connecting block 2 moves to the telecentric end.
  • the manual closing handle 3 of the present invention further includes a sliding key 34.
  • the sliding key 34 pushes the rack connecting block 2 to move toward the proximal end; when the manual closing handle 3 is closed, the pawl 33 pushes the rack.
  • the connecting block 2 is used to push the rack connecting block 2 through the sliding key 34 when the manual closing handle 3 is opened.
  • the sliding key 34 includes a sliding key main body 341, and the top end of the sliding key main body 341 is hinged with an ejection claw 343.
  • the retracting pawl 343 can only reciprocate to the proximal end. Under normal conditions, the length of the retracting pawl 343 is approximately collinear with the length of the feather key body 341; as shown in Figure 3C, the manual closing handle 3 is opened.
  • FIG. 4A it is an axonometric view of the mutual cooperation of the pawl 33, the sliding key 34 and the closing lock pin 32;
  • the pawl 33 is provided with an escape hole, and the knife withdrawal pawl 343 can extend upward from the escape hole;
  • the pawl A torsion spring is provided at the rotating shaft of 33, the pawl 33 has a tendency to rotate upwards, so that the pawl 33 is always pressed on the rack connecting block 2;
  • a torsion spring is provided at the handle connecting shaft 31, so that the manual closing handle 3 has a tendency to open , When you need to close the finger grip the manual closing handle 3, when you relax your fingers, the manual closing handle 3 will automatically open under the action of elastic force.
  • FIG. 4B it is a cross-sectional structure diagram of the manual closing handle 3; a spring pin 344 is slidably provided in the top cavity of the sliding key main body 341, and the spring pin 344 slides in the sliding key main body 341, and the sliding direction is the same as The length direction is consistent; the spring pin 344 is maintained in the initial state by the compression spring 345 provided in the sliding key main body 341, that is, the compression spring 345 exerts an upward elastic force on the spring pin 344, so that the spring pin 344 has a tendency to move upwards, thereby tightening in On the retracting pawl 343, the retracting pawl 343 is maintained in an extended state, and the retracting pawl 343 can still return to the original position after rotating to the right side of FIG. 3C.
  • the sliding key main body 341 can slide in the manual closing handle 3.
  • a lifting spring 342 is provided at the bottom end of the sliding key main body 341, and the lifting spring 342 applies an upward elastic force to the sliding key main body 341, thereby making it retreat.
  • the claw 343 is exposed upward.
  • the closing locking pin 32 slidably arranged in the manual closing handle 3.
  • the closing locking pin 32 can slide back and forth in a guide groove in the manual closing handle 3.
  • the sliding direction of the closing locking pin 32 is perpendicular to the manual closing handle 3.
  • the closing lock pin 32 can move back and forth in the direction indicated by the arrow in the figure; the closing lock pin 32 is used to drive the sliding key body 341 to move downward, when pressed from right to left to close
  • the closing locking pin 32 drives the sliding key main body 341 to move downward, so that the jacking spring 342 is compressed; when the closing locking pin 32 is pressed from left to right, the elastic force of the jacking spring 342 makes The sliding key body 341 moves upward, and at the same time, the manual closing handle 3 is automatically opened by torsional elastic force.
  • a convex block is provided on the side wall of the feather key main body 341, and the convex block is provided with an inclined surface.
  • the distal end of the push rod 5 is detachably connected to the cutting assembly 6, as shown in FIGS. 5A and 6A, respectively, when the stapler body and the cutting assembly are assembled with each other, the cutting assembly Figures 5B and 5C are respectively a partial structural diagram of the stapler body and a partial structural diagram of the cutting assembly in the corresponding state of Figure 5A; Figure 6B and Figure 6C are respectively an anastomosis in the corresponding state of Figure 6A The partial structure diagram of the main body and the partial structure diagram of the cutting assembly.
  • the staple cartridge 62 is hinged by a rotating shaft, and an elastic piece is provided on the staple cartridge 62 to keep the staple cartridge 62 in an open state; when the push rod 5 moves laterally, it can drive the closing rod 61 on the cutting assembly 6 to move, and the distal end of the closing rod 61
  • the core end is provided with a pressing piece Y, and when the closing rod 61 moves to the distal end, it presses on the wedge surface X of the staple cartridge 62 to close the staple cartridge 62.
  • the dual-power intracavity cutting stapler of the present invention When the dual-power intracavity cutting stapler of the present invention is not energized, the cutting assembly is closed and opened by manual operation, and the closing and opening forces are intuitively reflected on the manual closing handle 3, which effectively solves the problem of conventional electric The problem of unintuitive stapling force. And when electric drive is needed, the motor can drive the drive rack 1 to move laterally, and the drive rack 1 can also drive the rack connecting block 2 to move, thereby realizing dual power drive.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (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

一种双动力腔内切割吻合器，齿条连接块（2）滑动连接于驱动齿条（1）的远心端，齿条连接块（2）可相对于齿条（1）在一定范围内相对滑动，且驱动齿条（1）可推动齿条连接块（2）同步运动；齿条连接块（2）的远心端可拆卸连接推杆（5），推杆（5）的远心端可连接切割组件（6），齿条连接块（2）与推杆（5）同步移动；手动闭合手柄（3）通过手柄连接轴（31）转动连接于本体，手动闭合手柄（3）转动能够相对于本体转动，当手动闭合手柄（3）转动时可带动齿条连接块（2）相对于驱动齿条（1）移动。使用时，操作人员通过操纵手动闭合手柄（3），使齿条连接块（2）相对于驱动齿条（1）单独运动，通过握紧与推开手动闭合手柄（3）实现钳口的闭合与张开，闭合力直接反馈到手动闭合手柄（3）上，提供触觉反馈，为切割组件（6）的恰当选型提供指导。

Description

一种双动力腔内切割吻合器
本申请要求于2019年12月5日提交中国专利局、申请号为201911237029.0、发明名称为“一种双动力腔内切割吻合器”，以及于2019年12月5日提交中国专利局、申请号为“201922177671.6”、发明名称为“一种双动力腔内切割吻合器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及医疗器械技术领域，更进一步涉及一种双动力腔内切割吻合器。
背景技术
吻合器是医学上用于替代手工缝合的设备，主要工作原理是利用钛钉对组织进行离断或吻合，类似于订书机。腔内切割吻合器已广泛应用于多种开放和微创式的普通外科、妇产科、泌尿外科、胸外科及儿科手术。
目前腔内切割吻合器的驱动形式主要有电动和人工手动两种形式，手动吻合器的开合均需要手动进行，操作过程繁琐，且在切割较厚人体组织时，握持力较大，甚至存在手部抖动的情况，无法实现均匀稳定的切割效果；电动腔内切割吻合器由电力驱动，电动腔内切割吻合器的切割组件钳口的闭合、张开，以及切割刀片的前进、后退均采用电力驱动，简化操作步骤，操作简单省力、切割速度均匀、成钉稳定。
虽然电动吻合器设置有闭合力反馈指示，但在切割过程中只能通过肉眼观察切割情况，或通过器械的指示屏幕判断切割力，无法对人体提供触觉反馈，无法对医生选取适当闭合高度的切割组件提供直观的反馈。
对于本领域的技术人员来说，如何设计一种能够提供触觉反馈的切割吻合器，是目前需要解决的技术问题。
发明内容
本发明提供一种双动力腔内切割吻合器，通过手动闭合手柄可单独驱动齿条连接块移动，为操作人员提供触觉反馈，具体方案如下：
一种双动力腔内切割吻合器，包括：
驱动齿条，由驱动装置带动平移运动；
齿条连接块，滑动连接于所述驱动齿条的远心端；所述齿条连接块的远心端可拆卸连接推杆，所述推杆的远心端连接切割组件；
手动闭合手柄，通过手柄连接轴转动连接于本体，所述手动闭合手柄转动能够带动所述齿条连接块相对于所述驱动齿条移动。
可选地，所述齿条连接块的近心端凸出设置T型连接块，所述T型连接块插入所述驱动齿条的空腔内。
可选地，所述齿条连接块上设置长度方向设置底部开口的凹槽；所述手动闭合手柄的上部转动设置棘爪，所述棘爪能够伸入所述齿条连接块的凹槽内，当所述手动闭合手柄闭合时所述棘爪推动所述齿条连接块向远心端移动。
可选地，所述手动闭合手柄还包括滑键，当所述手动闭合手柄张开时所述滑键推动所述齿条连接块向近心端移动。
可选地，所述滑键包括滑键主体，所述滑键主体的顶端铰接退刀爪，所述退刀爪只能向近心端往复转动。
可选地，所述棘爪上设置避让孔，所述退刀爪能够从所述避让孔中向上伸出；
所述棘爪的转轴处设置扭转弹簧，使所述棘爪压在所述齿条连接块上；
所述手柄连接轴处设置扭转弹簧，使所述手动闭合手柄具有张开的趋势。
可选地，所述滑键主体的顶端内腔中滑动设置弹簧销，所述弹簧销通过所述滑键主体内设置的压缩弹簧保持初始状态。
可选地，所述滑键主体能够在所述手动闭合手柄内滑动，所述滑键主体的底端设置顶升弹簧；
还包括滑动设置于所述手动闭合手柄内的闭合锁止销，所述闭合锁止销的滑动方向垂直于所述手动闭合手柄的转动面；所述闭合锁止销用于驱动所述滑键主体向下移动。
可选地，所述推杆能够带动所述切割组件上的闭合杆移动，所述闭合杆向远心端移动时压在钉仓的楔形面上，使所述钉仓闭合。
本发明提供一种双动力腔内切割吻合器，驱动齿条由驱动装置带动平移运动；齿条连接块滑动连接于驱动齿条的远心端，齿条连接块可相对于齿条在一定范围内相对滑动，且驱动齿条可推动齿条连接块同步运动；齿条连接块的远心端可拆卸连接推杆，推杆的远心端可连接切割组件，齿条连接块与推杆同步移动；手动闭合手柄通过手柄连接轴转动连接于本体，手动闭合手柄转动能够相对于本体转动，当手动闭合手柄转动时可带动齿条连接块相对于驱动齿条移动；使用时，操作人员通过操纵手动闭合手柄，使齿条连接块相对于驱动齿条单独运动，通过握紧与推开手动闭合手柄实现钳口的闭合与张开，闭合力直接反馈到手动闭合手柄上，提供触觉反馈，为切割组件的恰当选型提供指导。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的双动力腔内切割吻合器的整体外观图；
图2A为本体部分的内部结构示意图；
图2B为手动闭合手柄的结构示意图；
图2C为齿条连接块与驱动齿条相互配合的局部结构图；
图2D和图2E分别为齿条连接块与驱动齿条第二种实施例的爆炸图和轴测图；
图3A至图3C分别为滑键的整个结构图、爆炸图和两种运动状态图；
图4A为棘爪、滑键和闭合锁止销相互配合的轴测图；
图4B为手动闭合手柄的剖面结构图；
图4C为闭合锁止销被限位的结构示意图；
图5A为吻合器本体与切割组件相互装配时切割组件张开状态的结构图；
图5B和图5C分别为图5A对应状态的吻合器本体的局部结构图和切 割组件的局部结构图；
图6A为吻合器本体与切割组件相互装配时切割组件闭合状态的结构图；
图6B和图6C分别为图6A对应状态的吻合器本体的局部结构图和切割组件的局部结构图。
图中包括：
驱动齿条1、齿条连接块2、T型连接块21、手动闭合手柄3、手柄连接轴31、闭合锁止销32、棘爪33、滑键34、滑键主体341、顶升弹簧342、退刀爪343、弹簧销344、压缩弹簧345、驱动装置4、推杆5、切割组件6、闭合杆61、钉仓62。
具体实施方式
本发明的核心在于提供一种双动力腔内切割吻合器，通过手动闭合手柄可单独驱动齿条连接块移动，为操作人员提供触觉反馈。
为了使本领域的技术人员更好地理解本发明的技术方案，下面将结合附图及具体的实施方式，对本发明的双动力腔内切割吻合器进行详细的介绍说明。
如图1所示，为本发明的双动力腔内切割吻合器的整体外观图，包括吻合器本体和可更换的切割组件；图2A为本体部分的内部结构示意图；其中包括驱动齿条1、齿条连接块2、手动闭合手柄3等结构；驱动齿条1由驱动装置4带动平移运动，驱动齿条1和驱动装置4分别安装在本体之内，驱动装置4可采用减速电机等形式，驱动齿条1与驱动装置4之间通过齿轮传动，驱动齿条1由本体内部设置的滑道导向，在驱动装置4的带动下，驱动齿条1可沿其自身的长度方向往复滑动。由于减速电机的传动比巨大，行星齿轮减速机构的传动比达400以上，减速电机的内阻力很大，在未通电时，减速电机的输出端齿轮可以认为被内阻力完全锁定，此时驱动齿条1也因与动力部件的传动齿轮啮合而被锁死。
齿条连接块2滑动连接于驱动齿条1的远心端，齿条连接块2可相对于驱动齿条1在一定范围内往复滑动，齿条连接块2的移动方向与驱动齿条1的移动方向同向；齿条连接块2的远心端可拆卸连接推杆5，推杆5 的远心端设置切割组件6，推杆5移动时驱动切割组件6。
医疗器械行业内，正确地持物器械，将靠紧持握部位的一端称为近心端，相应的将远离持握部位的一端称为远心端。图1中右侧为近心端，左侧为远心端。
如图2B所示，为手动闭合手柄3的结构示意图；手动闭合手柄3通过手柄连接轴31转动连接于吻合器本体，手动闭合手柄3可围绕手柄连接轴31转动，相对于吻合器本体往复摆动。手动闭合手柄3的顶端可与齿条连接块2接触，当手动闭合手柄3转动时能够带动齿条连接块2相对于驱动齿条1移动。
使用时，操作人员通过操纵手动闭合手柄，使齿条连接块相对于驱动齿条单独运动，通过握紧与推开手动闭合手柄实现钳口的闭合与张开；需要切割组件闭合时，将手动闭合手柄3的底端靠近本体，切割组件放松时，将手动闭合手柄3的底端远离本体。在齿条连接块2的运动范围内，切割组件的张开与闭合与手动闭合手柄3的转动保持同步，闭合力直接反馈到手动闭合手柄上，提供触觉反馈，为切割组件的恰当选型提供指导。
在切割组件的钉仓闭合的过程中，若加持组织的厚度不同，手动闭合手柄3受到的阻力就不同，该阻力的大小直观的表现除了加持组织的厚度。在实例中该推力值约为50-250N，在该范围内认为切割组件的选择与组织闭合厚度较为适配。
如图2C所示，为齿条连接块2与驱动齿条1相互配合的局部结构图；齿条连接块2的近心端凸出设置T型连接块21，T型连接块21的最末端设置膨大结构，起到限位的作用；在驱动齿条1的远心端设置空腔，空腔的开口尺寸小于内部的尺寸，空腔的长度方向与驱动齿条1的长度方向相同，T型连接块21插入驱动齿条1的空腔内；驱动齿条1的膨胀部分可伸入此空腔内，齿条连接块2的运动范围由T型连接块21与驱动齿条1远心端的空腔共同配合决定。
以上结构为本发明提供的优选方案，如图2D和图2E所示，分别为齿条连接块与驱动齿条第二种实施例的爆炸图和轴测图，齿条连接块2的一端设置凸块，凸块上开设腰形孔，腰形孔的长度方向与齿条连接块2的长 度方向一致；驱动齿条1的一端设置开槽，齿条连接块2端部的凸块可插入驱动齿条1中，驱动齿条1上插装连接销，连接销插入腰形孔内，将驱动齿条1和齿条连接块2活动连接，通过腰形孔限定齿条连接块2的滑动范围；因此只要齿条连接块2与驱动齿条1采用滑动连接的驱动形式均应受到本发明的保护。
齿条连接块2上设置长度方向设置底部开口的凹槽，手动闭合手柄3的顶端伸入此凹槽内与齿条连接块2配合；具体地，在手动闭合手柄3的上部转动设置棘爪33，棘爪33的转轴在近心端，棘爪33的远心端可活动；棘爪33能够伸入齿条连接块2的凹槽内，当手动闭合手柄3闭合时棘爪33推动齿条连接块2向远心端移动。如图2C所示，当手动闭合手柄3闭合时，手动闭合手柄3的底端向右运动，手动闭合手柄3的顶端向左运动，棘爪33的活动端推动齿条连接块2向远心端移动。
更进一步，本发明的手动闭合手柄3还包括滑键34，当手动闭合手柄3张开时滑键34推动齿条连接块2向近心端移动；手动闭合手柄3闭合时通过棘爪33推动齿条连接块2，手动闭合手柄3张开时通过滑键34推动齿条连接块2。
如图3A至图3C所示，分别为滑键34的整个结构图、爆炸图和两种运动状态图；具体地，滑键34包括滑键主体341，滑键主体341的顶端铰接退刀爪343，退刀爪343只能向近心端往复转动，正常状态下，退刀爪343的长度方向与滑键主体341的长度方向大致共线；如图3C所示，张开手动闭合手柄3时，滑键34随手动闭合手柄3向右移动，齿条连接块2对退刀爪343施加向左的作用力，但退刀爪343受阻挡无法向左移动，从而推动齿条连接块2向近心端移动，使切割组件6回缩。
如图4A所示，为棘爪33、滑键34和闭合锁止销32相互配合的轴测图；棘爪33上设置避让孔，退刀爪343能够从避让孔中向上伸出；棘爪33的转轴处设置扭转弹簧，棘爪33具有向上转动的趋势，使棘爪33始终压在齿条连接块2上；手柄连接轴31处设置扭转弹簧，使手动闭合手柄3具有张开的趋势，需要闭合时手指握紧手动闭合手柄3，放松时手指松开，手动闭合手柄3在弹力作用下自动张开。
如图4B所示，为手动闭合手柄3的剖面结构图；滑键主体341的顶端内腔中滑动设置弹簧销344，弹簧销344在滑键主体341内滑动，滑动方向与滑键主体341的长度方向一致；弹簧销344通过滑键主体341内设置的压缩弹簧345保持初始状态，也即压缩弹簧345对弹簧销344施加向上的弹力，使弹簧销344具有向上移动的趋势，从而顶紧在退刀爪343上，使退刀爪343保持延伸状态，退刀爪343向图3C的右侧转动后仍能恢复原位。
如图4B所示，滑键主体341能够在手动闭合手柄3内滑动，滑键主体341的底端设置顶升弹簧342，通过顶升弹簧342对滑键主体341施加向上的弹力，从而使退刀爪343向上外露。
还包括滑动设置于手动闭合手柄3内的闭合锁止销32，闭合锁止销32可在手动闭合手柄3内有导向槽中往复滑动，闭合锁止销32的滑动方向垂直于手动闭合手柄3的转动面，如图4A所示，闭合锁止销32可沿图中箭头所示的方向往复移动；闭合锁止销32用于驱动滑键主体341向下移动，当从右向左按压闭合锁止销32时，闭合锁止销32驱动滑键主体341向下移动，使顶升弹簧342被压缩；当从左向右反向按压闭合锁止销32时，顶升弹簧342的弹力使滑键主体341向上移动，与此同时，手动闭合手柄3受扭转弹力自动张开。
具体地，如图3B所示在滑键主体341的侧壁上设置凸块，凸块上设有斜面，在闭合锁止销32横向移动并插入外壳本体的外壳内侧设置的定位凹槽后被锁定，可推动滑键主体341向下移动，滑键主体341将顶升弹簧342压缩，从而使退刀爪343回缩，此时被被外壳上的定位凹槽锁定，整个手柄无法反向张开，如图4C所示，为闭合锁止销32被限位的结构示意图，从而使切割组件6保持在原位。
在上述任一技术方案及其相互组合的基础上，推杆5的远心端可拆卸连接切割组件6，如图5A和图6A所示，分别为吻合器本体与切割组件相互装配时切割组件张开状态和闭合状态的结构图；图5B和图5C分别为图5A对应状态的吻合器本体的局部结构图和切割组件的局部结构图；图6B和图6C分别为图6A对应状态的吻合器本体的局部结构图和切割组件的局 部结构图。
钉仓62通过转轴铰接，且钉仓62上设置弹片，可使钉仓62保持在张开的状态；推杆5横向移动时能够带动切割组件6上的闭合杆61移动，闭合杆61的远心端设置压片Y，当闭合杆61向远心端移动时压在钉仓62的楔形面X上，使钉仓62闭合。
本发明的双动力腔内切割吻合器在未通电状态下，切割组件通过手动操作闭合、张开动作，且闭合、张开的力量均直观的体现在手动闭合手柄3上，有效解决了常规电动吻合器加持力不直观的问题。并且在需要电力驱动时，可由电机带动驱动齿条1横向移动，驱动齿条1也可带动齿条连接块2移动，从而实现双动力驱动。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理，可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (9)

  1. 一种双动力腔内切割吻合器，其特征在于，包括：
    驱动齿条(1)，由驱动装置(4)带动平移运动；
    齿条连接块(2)，滑动连接于所述驱动齿条(1)的远心端；所述齿条连接块(2)的远心端可拆卸连接推杆(5)，所述推杆(5)的远心端连接切割组件(6)；
    手动闭合手柄(3)，通过手柄连接轴(31)转动连接于本体，所述手动闭合手柄(3)转动能够带动所述齿条连接块(2)相对于所述驱动齿条(1)移动。
  2. 根据权利要求1所述的双动力腔内切割吻合器，其特征在于，所述齿条连接块(2)的近心端凸出设置T型连接块(21)，所述T型连接块(21)插入所述驱动齿条(1)的空腔内。
  3. 根据权利要求1所述的双动力腔内切割吻合器，其特征在于，所述齿条连接块(2)上设置长度方向设置底部开口的凹槽；所述手动闭合手柄(3)的上部转动设置棘爪(33)，所述棘爪(33)能够伸入所述齿条连接块(2)的凹槽内，当所述手动闭合手柄(3)闭合时所述棘爪(33)推动所述齿条连接块(2)向远心端移动。
  4. 根据权利要求3所述的双动力腔内切割吻合器，其特征在于，所述手动闭合手柄(3)还包括滑键(34)，当所述手动闭合手柄(3)张开时所述滑键(34)推动所述齿条连接块(2)向近心端移动。
  5. 根据权利要求4所述的双动力腔内切割吻合器，其特征在于，所述滑键(34)包括滑键主体(341)，所述滑键主体(341)的顶端铰接退刀爪(343)，所述退刀爪(343)只能向近心端往复转动。
  6. 根据权利要求5所述的双动力腔内切割吻合器，其特征在于，所述 棘爪(33)上设置避让孔，所述退刀爪(343)能够从所述避让孔中向上伸出；
    所述棘爪(33)的转轴处设置扭转弹簧，使所述棘爪(33)压在所述齿条连接块(2)上；
    所述手柄连接轴(31)处设置扭转弹簧，使所述手动闭合手柄(3)具有张开的趋势。
  7. 根据权利要求6所述的双动力腔内切割吻合器，其特征在于，所述滑键主体(341)的顶端内腔中滑动设置弹簧销(344)，所述弹簧销(344)通过所述滑键主体(341)内设置的压缩弹簧(345)保持初始状态。
  8. 根据权利要求7所述的双动力腔内切割吻合器，其特征在于，所述滑键主体(341)能够在所述手动闭合手柄(3)内滑动，所述滑键主体(341)的底端设置顶升弹簧(342)；
    还包括滑动设置于所述手动闭合手柄(3)内的闭合锁止销(32)，所述闭合锁止销(32)的滑动方向垂直于所述手动闭合手柄(3)的转动面；所述闭合锁止销(32)用于驱动所述滑键主体(341)向下移动。
  9. 根据权利要求1至8任一项所述的双动力腔内切割吻合器，其特征在于，所述推杆(5)能够带动所述切割组件(6)上的闭合杆(61)移动，所述闭合杆(61)向远心端移动时压在钉仓(62)的楔形面上，使所述钉仓(62)闭合。
PCT/CN2020/097597 2019-12-05 2020-06-23 一种双动力腔内切割吻合器 WO2021109547A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022533346A JP7480299B2 (ja) 2019-12-05 2020-06-23 デュアルパワーキャビティ内切断ステープラー

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201922177671.6 2019-12-05
CN201922177671.6U CN211243533U (zh) 2019-12-05 2019-12-05 一种双动力腔内切割吻合器
CN201911237029.0 2019-12-05
CN201911237029.0A CN110801256A (zh) 2019-12-05 2019-12-05 一种双动力腔内切割吻合器

Publications (1)

Publication Number Publication Date
WO2021109547A1 true WO2021109547A1 (zh) 2021-06-10

Family

ID=76222199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/097597 WO2021109547A1 (zh) 2019-12-05 2020-06-23 一种双动力腔内切割吻合器

Country Status (2)

Country Link
JP (1) JP7480299B2 (zh)
WO (1) WO2021109547A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113926963A (zh) * 2021-10-15 2022-01-14 苏州法兰克曼医疗器械有限公司 一种具有自动成型的吻合器用缝钉加工设备
CN114712018A (zh) * 2022-04-28 2022-07-08 中国人民解放军总医院第八医学中心 一种牙槽外科用手术拉钩及其使用方法
CN115137427A (zh) * 2022-06-24 2022-10-04 江苏孜航精密五金有限公司 电动腔镜吻合器
CN118177894A (zh) * 2024-04-23 2024-06-14 宝玛医疗科技(无锡)有限公司 一种电动吻合器及其手动退刀结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2263567A2 (en) * 2006-01-31 2010-12-22 Ethicon Endo-Surgery, Inc. Motor-driven surgical cutting and fastening instrument with loading force feedback
CN104224254A (zh) * 2013-06-20 2014-12-24 瑞奇外科器械(中国)有限公司 外科手术器械及其驱动装置
CN207075910U (zh) * 2017-02-28 2018-03-09 苏州法兰克曼医疗器械有限公司 一种电动吻合器
CN107981900A (zh) * 2017-12-13 2018-05-04 上海理工大学 一种智能吻合器
US10363038B2 (en) * 2007-04-09 2019-07-30 Coviden Lp Surgical stapling apparatus with powered retraction
US20190261986A1 (en) * 2007-03-15 2019-08-29 Covidien Lp Powered surgical stapling device
CN110801256A (zh) * 2019-12-05 2020-02-18 山东威瑞外科医用制品有限公司 一种双动力腔内切割吻合器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006255303B2 (en) 2005-06-03 2011-12-15 Covidien Lp Battery powered surgical instrument
US10456132B2 (en) 2014-06-25 2019-10-29 Ethicon Llc Jaw opening feature for surgical stapler

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2263567A2 (en) * 2006-01-31 2010-12-22 Ethicon Endo-Surgery, Inc. Motor-driven surgical cutting and fastening instrument with loading force feedback
US20190261986A1 (en) * 2007-03-15 2019-08-29 Covidien Lp Powered surgical stapling device
US10363038B2 (en) * 2007-04-09 2019-07-30 Coviden Lp Surgical stapling apparatus with powered retraction
CN104224254A (zh) * 2013-06-20 2014-12-24 瑞奇外科器械(中国)有限公司 外科手术器械及其驱动装置
CN207075910U (zh) * 2017-02-28 2018-03-09 苏州法兰克曼医疗器械有限公司 一种电动吻合器
CN107981900A (zh) * 2017-12-13 2018-05-04 上海理工大学 一种智能吻合器
CN110801256A (zh) * 2019-12-05 2020-02-18 山东威瑞外科医用制品有限公司 一种双动力腔内切割吻合器

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113926963A (zh) * 2021-10-15 2022-01-14 苏州法兰克曼医疗器械有限公司 一种具有自动成型的吻合器用缝钉加工设备
CN113926963B (zh) * 2021-10-15 2023-07-25 苏州法兰克曼医疗器械有限公司 一种具有自动成型的吻合器用缝钉加工设备
CN114712018A (zh) * 2022-04-28 2022-07-08 中国人民解放军总医院第八医学中心 一种牙槽外科用手术拉钩及其使用方法
CN114712018B (zh) * 2022-04-28 2023-10-31 中国人民解放军总医院第八医学中心 一种牙槽外科用手术拉钩及其使用方法
CN115137427A (zh) * 2022-06-24 2022-10-04 江苏孜航精密五金有限公司 电动腔镜吻合器
CN118177894A (zh) * 2024-04-23 2024-06-14 宝玛医疗科技(无锡)有限公司 一种电动吻合器及其手动退刀结构

Also Published As

Publication number Publication date
JP7480299B2 (ja) 2024-05-09
JP2023505191A (ja) 2023-02-08

Similar Documents

Publication Publication Date Title
WO2021109547A1 (zh) 一种双动力腔内切割吻合器
CN110801256A (zh) 一种双动力腔内切割吻合器
EP3241502B1 (en) Stapling head assembly and suturing and cutting apparatus for endoscopic surgery
JP5791053B2 (ja) 単孔式手術用器具
WO2021120448A1 (zh) 外科器械
CN105919641B (zh) 一种电动腔镜吻合器
JP6931360B2 (ja) 腹腔鏡用クリップアプライヤ
WO2020228600A1 (zh) 一种医疗器械
CN216417236U (zh) 一种电动外科器械
CN208822855U (zh) 腔镜关节头直线型切割吻合器及配套的钉仓
CN219147776U (zh) 一种电动外科器械
AU2018382026B2 (en) Staple cartridge assembly and medical stapler using the staple cartridge assembly
WO2023143313A1 (zh) 外科器械
CN210903169U (zh) 一种医疗器械
CN217488731U (zh) 手动吻合器
CN211243533U (zh) 一种双动力腔内切割吻合器
CN216417237U (zh) 一种外科器械
JP2022514665A (ja) 触発機構及びステープラー
CN105433999B (zh) 外科手术器械的保险装置及外科手术器械
WO2023104044A1 (zh) 用于外科器械的钳口驱动装置及外科器械
WO2023109109A1 (zh) 电动吻合器械
EP2700366A1 (en) Straight stitching and cutting device
CN106073840B (zh) 一种腔镜吻合器
CN111870293A (zh) 一种气动腔镜吻合器
CN114795345A (zh) 腔镜用电动直线切割吻合器的双重压榨结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20895312

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022533346

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20895312

Country of ref document: EP

Kind code of ref document: A1