WO2020125676A1 - 旋钮组件及圆管型吻合器 - Google Patents

旋钮组件及圆管型吻合器 Download PDF

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Publication number
WO2020125676A1
WO2020125676A1 PCT/CN2019/126297 CN2019126297W WO2020125676A1 WO 2020125676 A1 WO2020125676 A1 WO 2020125676A1 CN 2019126297 W CN2019126297 W CN 2019126297W WO 2020125676 A1 WO2020125676 A1 WO 2020125676A1
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WO
WIPO (PCT)
Prior art keywords
knob
mating
fitting
assembly according
boss
Prior art date
Application number
PCT/CN2019/126297
Other languages
English (en)
French (fr)
Inventor
陈志�
郭毅
林江
Original Assignee
天臣国际医疗科技股份有限公司
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 CN201822131322.6U external-priority patent/CN209499811U/zh
Priority claimed from CN201811549388.5A external-priority patent/CN111329546A/zh
Application filed by 天臣国际医疗科技股份有限公司 filed Critical 天臣国际医疗科技股份有限公司
Priority to BR112021010191-8A priority Critical patent/BR112021010191A2/pt
Priority to JP2021535004A priority patent/JP2022516237A/ja
Priority to EP19899353.7A priority patent/EP3900645B1/en
Priority to KR1020217019850A priority patent/KR102668956B1/ko
Priority to AU2019408359A priority patent/AU2019408359B2/en
Priority to US17/298,876 priority patent/US11877749B2/en
Priority to CA3121951A priority patent/CA3121951C/en
Publication of WO2020125676A1 publication Critical patent/WO2020125676A1/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
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115—Staplers for performing anastomosis in a single operation
    • A61B17/1155—Circular staplers comprising a plurality of staples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00115—Electrical control of surgical instruments with audible or visual output
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00115—Electrical control of surgical instruments with audible or visual output
    • A61B2017/00119—Electrical control of surgical instruments with audible or visual output alarm; indicating an abnormal situation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00389—Button or wheel for performing multiple functions, e.g. rotation of shaft and end effector
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • 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
    • A61B2017/07214—Stapler heads
    • A61B2017/07257—Stapler heads characterised by its anvil
    • 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
    • A61B2017/07214—Stapler heads
    • A61B2017/07271—Stapler heads characterised by its cartridge
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1132—End-to-end connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1135—End-to-side connections, e.g. T- or Y-connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/031—Automatic limiting or abutting means, e.g. for safety torque limiting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0807—Indication means
    • A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument

Definitions

  • the invention relates to the technical field of medical equipment, in particular to a knob assembly and a circular tube-type stapler.
  • Gastrointestinal diseases are one of the most common diseases in humans.
  • a circular tube-type stapler is often used to replace the doctor's manual operation to anastomize the digestive tract and other physiological tissues.
  • the round tube stapler is a common surgical instrument. Most of them use axial inward binding. During the operation, they form an end-to-end or end-to-side anastomosis of the esophagus, stomach, intestine and other physiological tissues.
  • the segmental tissues are contained and contained in the stapler, and after the firing is completed, a circular anastomosis is formed on the tissue to reconstruct the human body channel.
  • a round tube type stapler includes a stapler body, an operation handle movably connected to the stapler body, and a nail anvil assembly cooperating with the body.
  • the stapler body includes a staple cartridge assembly disposed at a distal end, the staple cartridge assembly includes a ring-shaped staple cartridge, a cutter; and a knob disposed at a proximal end of the body, the knob can rotate relative to the body, and the stapler
  • the interior of the body also includes a nail anvil shaft disposed from the proximal end to the distal end.
  • the distal end and the proximal end are relative to the operator.
  • the end closer to the operator is the proximal end, and the end farther from the operator, that is, the end closer to the operation position is the distal end.
  • the inside and the outside are relative to the axis of the stapler, the side near the axis is the inside, and the side away from the axis is the outside.
  • the nail anvil assembly includes a nail anvil, a nail anvil cap disposed at a distal end of the nail anvil, and a knife anvil disposed inside the nail anvil.
  • the nail anvil assembly may be directly connected to the distal end of the nail anvil shaft or connected through a nail anvil shaft connection .
  • the nail anvil shaft penetrates from the purse of the stump tissue and is located at the distal end of the stapler body. Rotate the knob to gradually reduce the distance between the nail anvil assembly and the nail cartridge After reaching a suitable distance, it can reach the firing state, and then the operating handle can be used to complete the anastomosis.
  • the round tube stapler is also more and more widely used in the treatment of diseases such as hemorrhoids.
  • the knob In the process of rotating the knob to make the anvil assembly approach the staple cartridge, sometimes the knob can be rotated after the tissue is closed in place, so that the staple anvil assembly and the staple cartridge will continue to approach and continue to compress the tissue, causing tissue Excessive squeezing may even crush the tissue, which is very detrimental to the surgical results.
  • the object of the present invention is to provide a knob assembly and a tube-type stapler.
  • the knob driving member is rotated, when the resistance of the knob body reaches the preset resistance value, the knob assembly will no longer be able to Transmitting more torque, the knob assembly enters a failure mode at this time, and the gap between the anvil assembly and the staple cartridge remains unchanged without causing excessive tissue compression.
  • An embodiment of the present invention provides a knob assembly for a round tube-type stapler, and a screw rod is provided inside the stapler; the knob assembly includes:
  • a knob driving part and a knob body the knob body is sleeved on the outside of the screw rod, and when the knob body rotates, the screw rod is driven to move in the axial direction of the stapler;
  • a first mating part and a second mating part the first mating part is an elastic mating part, and the first mating part has a blocking state and a yielding state, when the first mating part is in the blocking state, the first A mating member is linked with a second mating member, and when the first mating member is in a yielding state, the first mating member and the second mating member are not linked;
  • the first fitting part is provided on the knob driving part, and the second fitting part is provided on the knob body; or, the first fitting part is provided on the knob body, and the second fitting part It is arranged on the knob driving part.
  • the knob driving part when the knob driving part is rotated by an external force, and the rotation resistance of the knob body is greater than a preset resistance value, the first fitting part is deformed by the force of the second fitting part and enters a yielding state .
  • the first fitting piece is an elastic sheet with a raised portion.
  • an elastic sheet mounting groove is opened on the knob driving part or the knob body, and both ends of the elastic sheet are installed in the elastic sheet mounting groove.
  • the elastic sheet includes a first guide surface, and when the knob driving member rotates in a first direction, the first guide surface of the first mating member contacts the second mating member.
  • the first guide surface is a curved surface or an inclined surface.
  • the elastic sheet includes a second guide surface, and when the knob driving member rotates toward the second direction, the second guide surface of the first mating member contacts the second mating member.
  • the second guide surface is a curved surface or an inclined surface.
  • the second fitting member includes at least one fitting structure, and the fitting structure is a protrusion or a groove.
  • the mating structure includes a first side surface, and when the knob driving member rotates in a first direction, the first side surface of the mating structure contacts the first mating member, and the first side surface faces the first side The direction is inclined.
  • the mating structure includes a second side surface, and when the knob driving member rotates toward the second direction, the second side surface of the mating structure contacts the first mating member.
  • the second side of the mating structure is a right-angled surface, or the second side of the mating structure is inclined toward the second direction, and the second side of the mating structure is less inclined than the first side of the mating structure The degree of inclination.
  • the knob driving member includes a knob housing, and the inner surface of the knob driving member is provided with the first matching member or the second matching member.
  • a first boss is provided on the outer side of the knob body, the first fitting is provided on the inner side of the knob housing, and the second fitting is provided near the first boss End side or distal side;
  • the second mating member is disposed on the inner side of the knob housing, and the first mating member is disposed on the proximal or distal side of the first boss.
  • a second boss is further provided on the outer surface of the knob body, and the second boss is located on the proximal side of the first boss;
  • the second boss is provided with the first fitting or the second fitting, and the height of the first fitting or the second fitting provided on the second boss is lower than that of the first boss Height, the distal end of the knob body cooperates with the first boss.
  • knob rear cover located at the proximal end of the knob body, a distal end of the knob rear cover is provided with an internal thread of the rear cover, and a proximal end of the knob body is provided with an internal thread of the rear cover Match the external thread of the body.
  • An embodiment of the present invention also provides a round tube type stapler including the knob assembly.
  • the invention provides a knob assembly for a round tube-type stapler.
  • the knob assembly is divided into a knob body and a knob driving member.
  • the knob driving member and the knob body are selectively linked.
  • the knob driver can drive the knob body to rotate together.
  • the knob body can drive the nail anvil assembly along the axial direction of the stapler through the screw rod to approach the staple cartridge.
  • the knob driver cannot drive the knob body to rotate.
  • the knob assembly enters the failure mode, and the gap between the nail anvil assembly and the nail cartridge remains unchanged, without causing excessive tissue squeezing.
  • FIG. 1 is a schematic structural diagram of a stapler according to a first embodiment of the present invention
  • FIG. 2 is a schematic diagram of the knob assembly and the screw rod of the first embodiment of the present invention
  • FIG. 3 is a cross-sectional view in the direction A1-A1 of FIG. 2;
  • FIG. 4 is a schematic structural view of a second boss of the first embodiment of the present invention.
  • FIG. 5 is a schematic structural view of the knob body of the first embodiment of the present invention.
  • FIG. 6 is a schematic structural view of the shrapnel of the first embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the structure of the knob housing of the first embodiment of the present invention.
  • FIG. 8 is a schematic structural view of the first knob back cover of the first embodiment of the present invention.
  • FIG. 9 is a schematic diagram of the knob assembly and the screw rod of the second embodiment of the present invention.
  • FIG. 10 is a cross-sectional view in the direction A2-A2 in FIG. 9;
  • FIG. 11 is a schematic structural view of the knob body of the second embodiment of the present invention.
  • FIG. 12 is a schematic structural view of a shrapnel according to a second embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a knob housing of a second embodiment of the present invention.
  • the present invention provides a knob assembly for a circular tube-type stapler.
  • the inside of the stapler is provided with a screw rod, and the knob assembly includes a selectively linked knob drive And a knob body, wherein the knob body is sleeved on the outside of the screw rod, and when the knob body rotates, the screw rod is driven to move in the axial direction of the stapler.
  • the knob driving part and the knob body are respectively provided with one of two matching parts, and the two matching parts include a first matching part and a second matching part.
  • first fitting member and the second fitting member are respectively disposed on the knob driving member and the knob body, or the first fitting member and the second fitting member are respectively disposed on the knob body and the knob driving member.
  • the invention further provides a round tube-type stapler including the knob assembly.
  • the first mating member is an elastic mating member, and the first mating member has a blocking state and a yielding state.
  • the first mating member and the second mating member Interlocking, when the first mating member is in a yielding state, the first mating member and the second mating member are not interlocked.
  • the knob driving part When the operator rotates the knob driving part in the first direction, the knob driving part transmits the rotational torque through the two matching parts. Before the rotation resistance of the knob body reaches the preset resistance value, the first matching part is in the blocking state, that is, blocking The relative movement between the knob driving part and the knob body, the knob driving part can drive the knob body to rotate together through the two matching parts, that is, the two matching parts are in a linked state, and the knob body further drives the nail anvil assembly along the stapler through the screw rod Move axially close to the cartridge assembly.
  • the knob body will be hindered first
  • the resistance to directional rotation corresponds to the tissue squeezing force between the anvil assembly and the cartridge assembly. At this time, the rotation of the knob body in the first direction can only be performed by applying a rotation torque greater than the resistance on the knob body.
  • the interaction force between the first fitting member and the second fitting member is greater than the elastic fitting member's force to overcome elastic deformation, and the first fitting member deforms and Enter the concession state, that is, the relative movement between the knob drive part and the knob body is no longer blocked, the knob drive part and the knob body are no longer linked, and the knob assembly enters the failure mode at this time, the gap between the nail anvil assembly and the nail cartridge Keep it the same without over-squeezing the tissue.
  • FIGS. 1-8 show the structure of the knob assembly of the first embodiment of the present invention, wherein the first fitting is provided on the knob driving part, and the second fitting is provided on the knob body;
  • FIGS. 9-13 show the present According to the structure of the knob assembly of the second embodiment of the invention, the first fitting is provided on the knob body, and the second fitting is provided on the knob driving part.
  • the stapler includes a stapler body and an anvil assembly 83, wherein the stapler body includes a stapler housing 81, a staple cartridge assembly 82 located at the distal end of the stapler housing 81, and a proximal end at the stapler housing 81
  • the knob assembly is rotated, the nail anvil assembly 83 is driven to move axially through the screw rod 6 and the anvil shaft sequentially, away from or close to the nail cartridge assembly 82.
  • the nail anvil assembly 83 is directly connected to the stapler body, and the nail anvil assembly 83 cannot be anastomosed from The nail body is removed, and the nail anvil assembly 83 does not include a nail anvil shaft, and the nail anvil is directly connected to the distal end of the screw rod.
  • the knob assembly includes a knob body 1 and a knob driver.
  • the knob driving part is the knob housing 2, and the operator directly contacts the knob housing 2 when operating the knob assembly, but the present invention is not limited to this.
  • the knob body 1 is sleeved on the outside of the screw rod 6, and the knob body 1 cooperates with the screw rod 6 through the internal thread 13 in the body.
  • the screw 6 can be moved toward the proximal end of the stapler, and the nail anvil assembly 83 can be further driven toward the nail cartridge assembly 82.
  • the screw rod 6 can be moved toward the distal end of the stapler, so that the nail anvil assembly 83 is away from the nail cartridge assembly 82.
  • the first fitting is provided on the knob casing 2 and the second fitting is provided on the knob body 1.
  • the first mating member is an elastic mating member, and the first mating member has a blocking state and a yielding state. When the first mating member is in the blocking state, the first mating member and the second mating member Linkage, the knob housing 2 and the knob body 1 are linked, and when the first mating member is in a yielding state, the first mating member and the second mating member are not linked, and the knob housing 2 and the knob body 1 are not linked.
  • the first fitting piece is the elastic piece 21 having the convex portion 211.
  • An elastic piece mounting groove 22 is provided on the inner side of the knob housing 2, and the first end 212 and the second end 213 of the elastic piece 21 are installed in the elastic piece mounting groove 22.
  • the shrapnel 21 may be a metal shrapnel or a plastic shrapnel, or other structure that can be elastically deformed and can recover its original state after removing external forces. This is only one setting method of the elastic fitting.
  • the elastic fitting can also adopt a structure in which the spring and the movable block fit together, etc., which are within the protection scope of the present invention.
  • the second mating member includes at least one mating structure, and the mating structure is a protrusion or a groove.
  • the second fitting member includes a plurality of protrusions 11 that are evenly distributed on the outer side of the knob body 1.
  • the protrusion 11 has a first side 111 and a second side 112. When the knob housing 2 rotates in the first direction, the first side 111 of the protrusion 11 contacts the elastic sheet 21, and when the knob housing 2 rotates in the second direction, the protrusion The second side 112 of 11 is in contact with the shrapnel 21.
  • the external force is first applied so that the knob housing 2 is rotated by the external force.
  • the knob housing 2 and the knob body 1 transmit the external force to the knob body 1 through the two mating parts.
  • the first mating part will give the second mating part one Rotational force, if the rotation resistance of the knob body 1 is less than the preset resistance value at this time, the reaction force of the second fitting member to the first fitting member is less than the elastic sheet 21's force to overcome elastic deformation, the elastic sheet 21 will not deform, the first The fitting is in a blocking state, and the knob casing 2 drives the knob body 1 to rotate together through the cooperation of the elastic piece 21 and the protrusion 11.
  • the operator When the operator applies an external force to drive the knob housing 2 to rotate, if the rotational resistance of the knob body 1 reaches or exceeds the preset resistance value, the operator needs to apply a greater external force. At this time, the reaction force of the protrusion 11 to the elastic piece 21 is greater than that of the elastic piece 21 Overcoming the force of elastic deformation, the elastic piece 21 is deformed by the force of the protrusion 11 and enters the yielding state, that is, the protrusion 11 and the elastic piece 21 cannot transmit external force to the knob body 1, the knob housing 2 cannot be linked with the knob body 1, the knob The casing 2 is idling idle, and can make a clicking sound when the protrusion 11 and the elastic piece 21 are released.
  • the knob assembly is in a failure state, the nail forming gap between the nail anvil assembly 83 and the nail cartridge assembly 82 remains unchanged, and the tissue will not be excessively pressed. If the operator hears a click or according to the feel of rotating the knob assembly in the failure state, it can determine that the current anvil assembly 83 has moved into place, and can perform the firing operation of the stapler.
  • the elastic piece 21 includes a first guide surface 214, and when the knob housing 2 is rotated in the first direction, the first guide surface 214 of the elastic piece 21 is in contact with the protrusion 11.
  • the first guide surface 214 may be a curved surface or an inclined surface.
  • the elastic piece 21 may further include a second guide surface 215. When the knob housing 2 rotates in the second direction, the second guide surface 215 of the elastic piece 21 contacts the protrusion 11, and the second guide surface 215 Can be curved or inclined.
  • a first boss 14 is provided on the outer surface of the knob body 1
  • a second boss 15 is further provided on the proximal end side of the first boss 14, and the protrusion 11 is provided on the first Two boss 15.
  • the second boss 15 and the plurality of protrusions 11 form a gear disc structure. This is only one embodiment. In other alternative embodiments, only one boss may be provided, or the second boss 15 may be provided on the distal side of the first boss 14, etc., all of which belong to the present invention. Within the scope of protection.
  • the height of the protrusion 11 on the second boss 15 is lower than that of the first boss 14; adaptively, a stepped surface is provided on the distal end of the rotating housing 2 to cooperate with the first boss 14, The movement of the knob housing in the axial direction is limited; the inner side of the distal end of the rotating housing 2 is provided with an elastic sheet 21 to cooperate with the protrusion 11.
  • a knob back cover is further provided at the proximal end of the knob assembly, the knob back cover includes a first knob back cover 5 and a second knob back cover 7, and the distal end of the first knob back cover 5 is provided with a back cover Internal thread 51, the proximal end of the knob body 1 is provided with a body external thread 12 that cooperates with the internal thread 51 of the back cover, the first knob back cover 5 is screwed to the proximal end of the knob body 1, and the second The knob back cover 7 may be installed at the proximal end of the first knob back cover 5.
  • the first direction is clockwise and the second direction is counterclockwise.
  • the first side 111 of the protrusion 11 is inclined toward the first direction, so that the knob housing 2 is deformed when it rotates clockwise and does not link with the knob body 1
  • the rear shrapnel 21 more easily crosses the protrusion 11.
  • the second side surface 112 of the protrusion 11 is an approximately right-angled surface or the second side surface 112 is inclined toward the second direction to prevent the knob housing from rotating in the second direction, so as to provide tactile feedback to the doctor and prompt the doctor for the direction of rotation.
  • the second side surface 112 of the protrusion 11 is an approximately right angle surface, which means that the second side surface 112 is substantially perpendicular to the outer side surface of the knob body 1. If the second side 112 of the protrusion 11 is inclined toward the second direction, the inclination of the second side 112 is smaller than the inclination of the first side 111. In this way, when the knob housing 2 rotates in the second direction, the elastic piece 21 cannot easily pass over the protrusion 11, thereby preventing the knob assembly from being unable to drive the knob body 1 along when the reverse operation is required after the knob assembly is tightened in the first direction Rotation in the second direction increases the distance between the staple cartridge assembly 82 and the anvil assembly 83.
  • FIGS. 9-13 the structure of the knob assembly of the second embodiment of the present invention is shown.
  • the difference between the second embodiment and the first embodiment is that the first fitting is provided on the knob body 3 and the second fitting is provided on the knob housing 4.
  • the first direction is counterclockwise and the second direction is clockwise.
  • the first fitting piece is a spring piece 31 including a protrusion 311, and the second fitting piece includes a plurality of protrusions 41 provided on the inner side of the knob housing 4.
  • the elastic piece 31 contacts the first side 411 of the protrusion 41, and when the knob body 3 rotates in the second direction, the elastic piece 31 contacts the second side 412 of the protrusion 41.
  • the inclination of the first side 411 is greater than the inclination of the second side 412, so that when the rotary housing 4 rotates in the first direction, the rotation resistance of the knob body 3 is greater than the resistance preset value, the spring 31 is more likely to The protrusion 41 is tripped, and it is ensured that after the rotating housing 4 is tightened in the first direction, the knob body 3 can be driven to rotate through the knob housing 4 in the second direction.
  • the outer surface of the knob body 3 is provided with an elastic piece mounting groove 32, and both ends 312 and 313 of the elastic piece 31 are respectively disposed in the elastic piece mounting groove 32.
  • the shrapnel 31 includes a first guide surface 314 and a second guide surface 315.
  • the knob body 1 is provided with a first boss 33 and a second boss 34, and the second boss 34 is provided on the proximal end side of the first boss 33.
  • the first boss 33 interacts with the distal end of the knob housing 4 to limit the axial movement of the knob housing.
  • the shrapnel mounting groove 32 is provided on the outer surface of the second boss 34. The distal end of the knob housing 4 cooperates with the first boss 33.
  • the working principle is similar to that of the knob assembly of the first embodiment.
  • the external force is first applied to rotate the knob housing 4.
  • the knob housing 4 transmits the external force to the knob body 3 through the two mating parts.
  • the first mating part will give a rotation force to the second mating part.
  • the rotation resistance of the knob body 3 is less than the preset resistance value, the force exerted by the second fitting member on the first fitting member is less than the force of the elastic sheet 31 to overcome the elastic deformation, the elastic sheet 31 will not deform, the first fitting member is in the blocking state, the knob
  • the housing 4 drives the knob body 3 to rotate together through the cooperation of the elastic sheet 31 and the protrusion 41.
  • the operator When the operator applies an external force to drive the knob housing 4 to rotate, if the rotational resistance of the knob body 3 reaches or exceeds the preset resistance value, the operator needs to apply a greater external force. At this time, the force exerted by the protrusion 41 on the elastic sheet 31 is greater than that of the elastic sheet 31 Overcoming the force of elastic deformation, the spring piece 31 is deformed by the force of the protrusion 41 and enters the yielding state, that is, the protrusion 41 and the spring piece 31 cannot transmit external force to the knob body 3, the knob housing 4 cannot be linked with the knob body 3, the knob The casing 4 is idling idle, and can make a clicking sound when the protrusion 41 and the spring piece 31 are released.
  • the knob assembly is in a failure state, the nail forming gap between the nail anvil assembly 83 and the nail cartridge assembly 82 remains unchanged, and the tissue will not be excessively pressed. If the operator hears a click or according to the feel of rotating the knob assembly in the failure state, it can determine that the current anvil assembly 83 has moved into place, and can perform the firing operation of the stapler.
  • the number of the elastic pieces may be two or more, for example, when the elastic pieces are two, they may be symmetrically arranged To strengthen the stability of the structure.
  • the two embodiments provided by the present invention are only examples, and in practical applications, some features of the two embodiments can also be combined to obtain a new technical solution. Or change one or some of the features to obtain a new technical solution, which falls within the protection scope of the present invention.
  • the first mating piece may not adopt the structure of an elastic piece, but adopts the structure in which the movable block and the spring cooperate.
  • the magnitude of the force to overcome the elastic deformation is the spring force of the spring.
  • the second mating piece may also adopt the protrusion instead of the protrusion.
  • the structure of the groove, and the number and arrangement of the matching structures can also be selected according to needs.
  • the invention provides a knob assembly for a round tube-type stapler.
  • the knob assembly is divided into a knob body and a knob driving member.
  • the knob driving member and the knob body are selectively linked.
  • the knob driver can drive the knob body to rotate together.
  • the knob body can drive the nail anvil assembly along the axial direction of the stapler through the screw rod to approach the staple cartridge.
  • the knob driver cannot drive the knob body to rotate.
  • the knob assembly enters the failure mode, and the gap between the nail anvil assembly and the nail cartridge remains unchanged, without causing excessive tissue squeezing.

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Abstract

一种旋钮组件及圆管型吻合器，其中旋钮组件包括选择性联动的旋钮驱动件和旋钮本体（1），旋钮本体（1）套设于丝杆（6）的外部，旋钮本体（1）旋转时带动丝杆（6）沿吻合器的轴向移动；旋钮驱动件和旋钮本体（1）上分别设置第一配合件和第二配合件中的一个，第一配合件为弹性配合件，且第一配合件具有阻挡状态和让位状态，第一配合件处于阻挡状态时，第一配合件与第二配合件联动，第一配合件处于让位状态时，第一配合件与第二配合件不联动。通过采用旋钮组件，旋转旋钮驱动件时，当旋钮本体（1）所受的阻力达到阻力预设值后，旋钮组件将无法再传递更大的扭矩，此时的旋钮组件进入失效模式，钉砧组件（83）和钉仓组件（82）之间的间隙保持不变，而不会使得组织被过度压榨。

Description

旋钮组件及圆管型吻合器 技术领域
本发明涉及医疗器械技术领域，具体涉及一种旋钮组件及圆管型吻合器。
背景技术
消化道疾病是人类高发的疾病之一，在治疗过程中，常使用圆管型吻合器代替医生的手工操作对消化道等生理组织进行吻合。圆管型吻合器是一种常见的外科手术器械，大多采用轴向内装订方式，在手术时对食管、胃、肠道等生理组织形成端对端的、或者端对侧的吻合，吻合时两段组织内敛收容于吻合器内，击发完成后在组织上形成圆形吻合口，重建了人体通道。
现有技术中，圆管型吻合器包括吻合器本体、活动连接所述吻合器本体的操作把手以及与所述本体配合的钉砧组件。所述吻合器本体包括设于远端的钉仓组件，所述钉仓组件包括环形钉仓、切刀；以及设于本体近端的旋钮，所述旋钮可相对于本体旋转，所述吻合器本体的内部还包括从近端向远端设置的钉砧轴。此处远端和近端是相对于操作者来说的，距离操作者较近的一端为近端，距离操作者较远的一端，即更靠近手术位置的一端为远端。在吻合器中，内侧与外侧是相对与吻合器的轴心来说的，靠近轴心的一侧为内侧，远离轴心的一侧为外侧。所述钉砧组件包括钉砧、设置在钉砧远端的钉砧帽和设置在钉砧内部的刀砧，钉砧组件可以与钉砧轴的远端直接连接或通过钉砧轴连接件连接。在肿瘤手术过程中，离断去除肿瘤组织后，钉砧轴从残端组织的荷包穿出，配置于吻合器本体的远端，旋转旋钮，使钉砧组件和钉仓之间的距离逐渐减小达到一个合适的距离后，达到可击发状态，才能握持操作把手击发器械完成吻合。随着医疗器械的不断发展，圆管型吻合器也越来越广泛地应用于痔疮等疾病的治疗。
在旋转旋钮，使钉砧组件向钉仓靠近的过程中，有时候组织闭合到位后，旋钮还是可以旋转的，这样钉砧组件与钉仓之间就会继续靠近，继续压缩组 织，对组织造成过度压榨，甚至可能会压碎组织，对手术结果十分不利。
发明内容
针对现有技术中的问题，本发明的目的在于提供一种旋钮组件及圆管型吻合器，旋转旋钮驱动件时，当旋钮本体所受的阻力达到阻力预设值后，旋钮组件将无法再传递更大的扭矩，此时的旋钮组件进入失效模式，钉砧组件和钉仓之间的间隙保持不变，而不会使得组织被过度压榨。
本发明实施例提供一种旋钮组件，用于圆管型吻合器，所述吻合器的内部设置有一丝杆；所述旋钮组件包括：
旋钮驱动件和旋钮本体，所述旋钮本体套设于所述丝杆的外部，所述旋钮本体旋转时带动丝杆沿吻合器的轴向移动；
第一配合件和第二配合件，所述第一配合件为弹性配合件，且所述第一配合件具有阻挡状态和让位状态，所述第一配合件处于阻挡状态时，所述第一配合件与第二配合件联动，所述第一配合件处于让位状态时，所述第一配合件与第二配合件不联动；
所述第一配合件设置于所述旋钮驱动件，且所述第二配合件设置于所述旋钮本体；或，所述第一配合件设置于所述旋钮本体，且所述第二配合件设置于所述旋钮驱动件。
可选地，所述旋钮驱动件受外力而旋转，且所述旋钮本体的旋转阻力大于预设阻力值时，所述第一配合件受到第二配合件的作用力产生变形而进入让位状态。
可选地，所述第一配合件为具有凸起部的弹片。
可选地，所述旋钮驱动件或所述旋钮本体上开设有弹片安装槽，所述弹片的两端安装于所述弹片安装槽中。
可选地，所述弹片包括第一引导面，所述旋钮驱动件朝向第一方向旋转时，所述第一配合件的第一引导面与所述第二配合件接触。
可选地，所述第一引导面为弧面或斜面。
可选地，所述弹片包括第二引导面，所述旋钮驱动件朝向第二方向旋转 时，所述第一配合件的第二引导面与所述第二配合件接触。
可选地，所述第二引导面为弧面或斜面。
可选地，所述第二配合件包括至少一个配合结构，所述配合结构为凸起或凹槽。
可选地，所述配合结构包括第一侧面，所述旋钮驱动件朝向第一方向旋转时，所述配合结构的第一侧面与所述第一配合件接触，所述第一侧面朝向第一方向倾斜。
可选地，所述配合结构包括第二侧面，所述旋钮驱动件朝向第二方向旋转时，所述配合结构的第二侧面与第一配合件接触。
可选地，所述配合结构的第二侧面为直角面，或所述配合结构的第二侧面朝向第二方向倾斜，且所述配合结构的第二侧面的倾斜程度小于配合结构的第一侧面的倾斜程度。
可选地，所述旋钮驱动件包括旋钮外壳，所述旋钮驱动件的内侧面设置有所述第一配合件或第二配合件。
可选地，所述旋钮本体的外侧面设置有第一凸台，所述第一配合件设置于所述旋钮外壳的内侧面，所述第二配合件设置于所述第一凸台的近端侧或远端侧；或
所述第二配合件设置于所述旋钮外壳的内侧面，所述第一配合件设置于所述第一凸台的近端侧或远端侧。
可选地，所述旋钮本体的外侧面还设置有第二凸台，所述第二凸台位于第一凸台的近端侧；
所述第二凸台上设置有所述第一配合件或第二配合件，且设置于所述第二凸台的第一配合件或第二配合件的高度低于所述第一凸台的高度，所述旋钮本体的远端与所述第一凸台相配合。
可选地，还包括位于所述旋钮本体的近端的旋钮后盖，所述旋钮后盖的远端设置有后盖内螺纹，所述旋钮本体的近端设置有与所述后盖内螺纹相配合的本体外螺纹。
本发明实施例还提供一种圆管型吻合器，包括所述的旋钮组件。
本发明所提供的旋钮组件及圆管型吻合器具有如下优点：
本发明提供了一种用于圆管型吻合器的旋钮组件，将旋钮组件分为旋钮本体和旋钮驱动件，旋钮驱动件与旋钮本体选择性地联动，当旋钮本体所受的旋转阻力达到阻力预设值之前，旋钮驱动件可带动旋钮本体一起转动，旋钮本体可通过丝杆带动钉砧组件沿吻合器的轴向移动而靠近钉仓，当旋钮本体所受的旋转阻力达到阻力预设值之后，由于弹性配合件产生变形，旋钮驱动件无法驱使旋钮本体转动，此时的旋钮组件进入失效模式，钉砧组件和钉仓之间的间隙保持不变，而不会使得组织被过度压榨。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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是本发明第一实施例的吻合器的结构示意图；
图2是本发明第一实施例的旋钮组件与丝杆配合的示意图；
图3是图2中A1-A1方向的剖视图；
图4是本发明第一实施例的第二凸台的结构示意图；
图5是本发明第一实施例的旋钮本体的结构示意图；
图6是本发明第一实施例的弹片的结构示意图；
图7是本发明第一实施例的旋钮外壳的结构示意图；
图8是本发明第一实施例的第一旋钮后盖的结构示意图；
图9是本发明第二实施例的旋钮组件与丝杆配合的示意图；
图10是图9中A2-A2方向的剖视图；
图11是本发明第二实施例的旋钮本体的结构示意图；
图12是本发明第二实施例的弹片的结构示意图；
图13是本发明第二实施例的旋钮外壳的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。
下面将参考附图并结合实施例，来详细说明本发明。
为了解决现有技术中的技术问题，本发明提供了一种用于圆管型吻合器的旋钮组件，所述吻合器的内部设置有一丝杆，所述旋钮组件包括选择性地联动的旋钮驱动件和旋钮本体，其中所述旋钮本体套设于所述丝杆的外部，所述旋钮本体旋转时带动丝杆沿吻合器的轴向移动。旋钮驱动件和旋钮本体上分别设置有两个配合件中的一个，两个配合件包括第一配合件和第二配合件。即，第一配合件和第二配合件分别设置于所述旋钮驱动件和旋钮本体，或者所述第一配合件和第二配合件分别设置于所述旋钮本体和旋钮驱动件。本发明进一步还提供了一种圆管型吻合器，包括所述旋钮组件。
其中，所述第一配合件为弹性配合件，且所述第一配合件具有阻挡状态和让位状态，所述第一配合件处于阻挡状态时，所述第一配合件与第二配合件联动，所述第一配合件处于让位状态时，所述第一配合件与第二配合件不联动。
当操作者沿第一方向旋转旋钮驱动件时，旋钮驱动件通过两个配合件传递旋转力矩，在旋钮本体所受的旋转阻力达到阻力预设值之前，第一配合件处于阻挡状态，即阻挡旋钮驱动件和旋钮本体之间的相对运动，旋钮驱动件 可通过两个配合件带动旋钮本体一起转动，即两个配合部处于联动状态，旋钮本体进一步通过丝杆带动钉砧组件沿吻合器的轴向移动而靠近钉仓组件。
随着钉砧组件逐渐靠近钉仓组件，当钉砧组件与钉仓组件之间到达合适的距离，同时对组织的压榨力达到合适的预定值时，再旋转旋钮，旋钮本体会受到阻碍第一方向旋转的阻力，此阻力即对应于钉砧组件和钉仓组件之间的组织压榨力，此时，只有在旋钮本体上施加大于该阻力的旋转扭矩才能沿第一方向转动旋钮本体。即，当旋钮本体所受的旋转阻力达到阻力预设值之后，第一配合件和第二配合件之间的相互作用力大于弹性配合件的克服弹性变形的力，第一配合件产生变形而进入让位状态，即不再阻挡旋钮驱动件和旋钮本体之间的相对运动，旋钮驱动件与旋钮本体不再联动，此时的旋钮组件进入失效模式，钉砧组件和钉仓之间的间隙保持不变，而不会使得组织被过度压榨。
下面结合附图对本发明两个实施例提供的圆管型吻合器和其中的旋钮组件进行详细介绍。其中，图1～8示出了本发明第一实施例的旋钮组件的结构，其中，第一配合件设置于旋钮驱动件，第二配合件设置于旋钮本体；图9～13示出了本发明第二实施例的旋钮组件的结构，其中，第一配合件设置于旋钮本体，第二配合件设置于旋钮驱动件。
如图1所示，示出了第一实施例的吻合器的结构。其中，吻合器包括吻合器本体和钉砧组件83，其中，吻合器本体包括吻合器壳体81、位于吻合器壳体81的远端的钉仓组件82、位于吻合器壳体81的近端的旋钮组件以及从近端向远端设置的丝杆6，钉仓组件82包括环形钉仓和切刀，钉砧组件83包括钉砧和钉砧轴，钉砧通过钉砧轴连接至丝杆的远端。旋钮组件旋转时， 依次通过所述丝杆6和钉砧轴带动钉砧组件83轴向移动，远离或靠近钉仓组件82。
当然，在另一类的圆管型吻合器中，例如前文提到的做痔疮手术的圆管型吻合器，其钉砧组件83是直接与吻合器本体连接的，钉砧组件83不能从吻合器本体上取下来，此时即钉砧组件83不包含钉砧轴，钉砧直接与丝杆的远端相连接。
如图2～8所示，所述旋钮组件包括旋钮本体1和旋钮驱动件。在该实施例中，旋钮驱动件为旋钮外壳2，操作者在操作旋钮组件时，直接接触旋钮外壳2，但本发明不限于此。所述旋钮本体1套设于所述丝杆6的外部，且旋钮本体1通过内部的本体内螺纹13与丝杆6配合。所述旋钮本体1沿第一方向旋转时可带动丝杆6朝吻合器的近端移动，并进一步带动钉砧组件83向钉仓组件82靠近。所述旋钮本体1沿第二方向旋转时，可带动丝杆6朝吻合器的远端移动，以使得钉砧组件83远离钉仓组件82。该实施例中，第一配合件设置于旋钮外壳2上，第二配合件设置于旋钮本体1上。其中，所述第一配合件为弹性配合件，且所述第一配合件具有阻挡状态和让位状态，所述第一配合件处于阻挡状态时，所述第一配合件与第二配合件联动，旋钮外壳2和旋钮本体1联动，所述第一配合件处于让位状态时，所述第一配合件与第二配合件不联动，旋钮外壳2和旋钮本体1不联动。
在该实施例中，第一配合件为具有凸起部211的弹片21。在旋钮外壳2的内侧面设置有弹片安装槽22，弹片21的第一端212和第二端213安装于所述弹片安装槽22中。弹片21可以为金属弹片或塑料弹片，或其他可以弹性变形且去除外力后可以恢复初始状态的结构。此处仅为弹性配合件的一种 设置方式，在其他替代的实施方式中，弹性配合件也可以采用弹簧和活动块配合的结构等等，均属本发明的保护范围之内。
所述第二配合件包括至少一个配合结构，所述配合结构为凸起或凹槽。在该实施例中，第二配合件包括多个凸起11，多个凸起11均匀分布在旋钮本体1的外侧面上。凸起11具有第一侧面111和第二侧面112，在旋钮外壳2朝向第一方向旋转时，凸起11的第一侧面111与弹片21接触，旋钮外壳2朝向第二方向旋转时，凸起11的第二侧面112与弹片21接触。
操作者操作旋钮组件时，首先施加外力使得旋钮外壳2受外力而旋转，旋钮外壳2与旋钮本体1通过两个配合件将外力向旋钮本体1传递，第一配合件会给第二配合件一个旋转作用力，如果此时旋钮本体1的旋转阻力小于预设阻力值，第二配合件给第一配合件的反作用力小于弹片21的克服弹性变形的力，弹片21不会发生变形，第一配合件处于阻挡状态，旋钮外壳2通过弹片21和凸起11的配合带动旋钮本体1一起旋转。操作者施加外力驱动旋钮外壳2旋转时，如果旋钮本体1的旋转阻力达到或大于预设阻力值，操作者需要施加更大的外力，此时凸起11给弹片21的反作用力大于弹片21的克服弹性变形的力，弹片21受到凸起11的作用力产生变形而进入让位状态，即凸起11和弹片21无法传递外力至旋钮本体1上，旋钮外壳2无法与旋钮本体1联动，旋钮外壳2进行的是无效的空转，并且可以发出凸起11和弹片21脱扣时的哒哒声。此时旋钮组件处于失效状态，钉砧组件83和钉仓组件82之间的钉成型间隙保持不变，组织不会被过度压榨。操作者如果听到哒哒声或者根据失效状态时旋转旋钮组件的手感可以判定出当前钉砧组件83已经移动到位，可以执行吻合器的击发操作。
在该实施例中，所述弹片21包括第一引导面214，所述旋钮外壳2朝向第一方向旋转时，所述弹片21的第一引导面214与所述凸起11接触。所述第一引导面214可以为弧面或斜面。所述弹片21还可以包括第二引导面215，所述旋钮外壳2朝向第二方向旋转时，所述弹片21的第二引导面215与所述凸起11接触，所述第二引导面215可以为弧面或斜面。
如图2所示，所述旋钮本体1的外侧面设置有第一凸台14，所述第一凸台14的近端侧还设置有第二凸台15，所述凸起11设置于第二凸台15。并且如图3和图4中示出的，第二凸台15和多个凸起11形成一个齿轮圆盘的结构。此处仅为一种实施方式，在其他替代的实施方式中，也可以只设置一个凸台，或者将第二凸台15设置于第一凸台14的远端侧等等，均属于本发明的保护范围之内。
在该实施例中，第二凸台15上凸起11的高度低于第一凸台14的高度；适应地，旋转壳体2的远端设有一台阶面与第一凸台14配合，以限定旋钮外壳在轴向上的运动；旋转壳体2的远端内侧上设置弹片21与凸起11配合。
进一步地，所述旋钮组件的近端还设置有旋钮后盖，所述旋钮后盖包括第一旋钮后盖5和第二旋钮后盖7，第一旋钮后盖5的远端设置有后盖内螺纹51，所述旋钮本体1的近端设置有与所述后盖内螺纹51相配合的本体外螺纹12，第一旋钮后盖5通过螺纹连接于旋钮本体1的近端配合，第二旋钮后盖7可以安装于第一旋钮后盖5的近端。
在图3和图4中的视角中，第一方向为顺时针方向，第二方向为逆时针方向。如图3和图4所示，在该实施例中，所述凸起11的第一侧面111朝向第一方向倾斜，使得旋钮外壳2在顺时针方向旋转且不与旋钮本体1联动时， 变形后的弹片21更容易越过凸起11。凸起11的第二侧面112为近似直角面或第二侧面112朝向第二方向倾斜，以阻碍旋钮外壳向第二方向旋转，以给医生以触觉反馈，提示医生旋转方向。此处凸起11的第二侧面112为近似直角面指的是第二侧面112基本上垂直于旋钮本体1的外侧面。如果凸起11的第二侧面112朝向第二方向倾斜，则第二侧面112的倾斜程度小于第一侧面111的倾斜程度。这样设置，可以使得在旋钮外壳2沿第二方向旋转时，弹片21不易越过凸起11，从而防止旋钮组件在沿第一方向旋紧之后，当需要反向操作时，无法带动旋钮本体1沿第二方向旋转增大钉仓组件82和钉砧组件83的距离。
如图9～13所示，示出了本发明第二实施例的旋钮组件的结构。第二实施例与第一实施例的区别在于：第一配合件设置于旋钮本体3，第二配合件设置于旋钮壳体4。
在图10的视角中，第一方向为逆时针方向，第二方向为顺时针方向。第一配合件为包括凸起部311的弹片31，第二配合件包括设置于旋钮壳体4的内侧面的多个凸起41。旋钮本体3沿第一方向旋转时，弹片31与凸起41的第一侧面411接触，旋钮本体3沿第二方向旋转时，弹片31与凸起41的第二侧面412接触。同样地，第一侧面411的倾斜程度大于第二侧面412的倾斜程度，以使得旋转外壳4在沿第一方向旋转时，旋钮本体3的旋转阻力大于阻力预设值时，弹片31更容易与凸起41脱扣，且保证在旋转外壳4沿第一方向旋紧后，可以再沿第二方向通过旋钮外壳4带动旋钮本体3旋转。
旋钮本体3的外侧面设置有弹片安装槽32，弹片31的两端312、313分别设置于所述弹片安装槽32中。弹片31包括第一引导面314和第二引导面 315。旋钮本体3沿第一方向旋转时，弹片31的第一引导面314与凸起41的第一侧面411接触，旋钮本体3沿第二方向旋转时，弹片31的第二引导面315与凸起41的第二侧面412接触。
在该实施例中，旋钮本体1上设置有第一凸台33和第二凸台34，第二凸台34设置在第一凸台33的近端侧。第一凸台33与旋钮外壳4的远端相作用以限制旋钮外壳的轴向运动。弹片安装槽32设置于第二凸台34的外表面。旋钮外壳4的远端与第一凸台33配合。
采用该第二实施例的旋钮组件，其工作原理与第一实施例的旋钮组件时类似。操作者操作旋钮组件时，首先施加外力使得旋钮外壳4旋转，旋钮外壳4通过两个配合件将外力向旋钮本体3传递，第一配合件会给第二配合件一个旋转作用力，如果此时旋钮本体3的旋转阻力小于预设阻力值，第二配合件给第一配合件的作用力小于弹片31的克服弹性变形的力，弹片31不会发生变形，第一配合件处于阻挡状态，旋钮外壳4通过弹片31和凸起41的配合带动旋钮本体3一起旋转。操作者施加外力驱动旋钮外壳4旋转时，如果旋钮本体3的旋转阻力达到或大于预设阻力值，操作者需要施加更大的外力，此时凸起41给弹片31的作用力大于弹片31的克服弹性变形的力，弹片31受到凸起41的作用力产生变形而进入让位状态，即凸起41和弹片31无法传递外力至旋钮本体3上，旋钮外壳4无法与旋钮本体3联动，旋钮外壳4进行的是无效的空转，并且可以发出凸起41和弹片31脱扣时的哒哒声。此时旋钮组件处于失效状态，钉砧组件83和钉仓组件82之间的钉成型间隙保持不变，组织不会被过度压榨。操作者如果听到哒哒声或者根据失效状态时旋转旋钮组件的手感可以判定出当前钉砧组件83已经移动到位，可以执行 吻合器的击发操作。
可以理解的是，无论是在第一实施例当中，还是在第二实施例当中，所述弹片的个数可以是两个或者多个，例如，当所述弹片为两个时，可以对称设置，以加强结构的稳定性。
本发明给出的两个实施例仅为示例，在实际应用中，还可以将两个实施例中的一些特征进行组合，得到新的技术方案。或者对其中的某个或某些特征进行变更，得到新的技术方案，均属于本发明的保护范围之内。例如，第一配合件可以不采用弹片的结构，而采用活动块和弹簧配合的结构，克服弹性变形的力的大小即为弹簧的弹簧力，第二配合件也可以不采用凸起，而采用凹槽的结构，且配合结构的数量和排布方式也可以根据需要选择。
本发明所提供的旋钮组件及圆管型吻合器具有下列优点：
本发明提供了一种用于圆管型吻合器的旋钮组件，将旋钮组件分为旋钮本体和旋钮驱动件，旋钮驱动件与旋钮本体选择性地联动，当旋钮本体所受的旋转阻力达到阻力预设值之前，旋钮驱动件可带动旋钮本体一起转动，旋钮本体可通过丝杆带动钉砧组件沿吻合器的轴向移动而靠近钉仓，当旋钮本体所受的旋转阻力达到阻力预设值之后，由于弹性配合件产生变形，旋钮驱动件无法驱使旋钮本体转动，此时的旋钮组件进入失效模式，钉砧组件和钉仓之间的间隙保持不变，而不会使得组织被过度压榨。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (17)

  1. 一种旋钮组件，其特征在于，用于圆管型吻合器，所述吻合器的内部设置有一丝杆；所述旋钮组件包括：
    旋钮驱动件和旋钮本体，所述旋钮本体套设于所述丝杆的外部，所述旋钮本体旋转时带动丝杆沿吻合器的轴向移动；
    第一配合件和第二配合件，所述第一配合件为弹性配合件，且所述第一配合件具有阻挡状态和让位状态，所述第一配合件处于阻挡状态时，所述第一配合件与第二配合件联动，所述第一配合件处于让位状态时，所述第一配合件与第二配合件不联动；
    所述第一配合件设置于所述旋钮驱动件，且所述第二配合件设置于所述旋钮本体；或，所述第一配合件设置于所述旋钮本体，且所述第二配合件设置于所述旋钮驱动件。
  2. 根据权利要求1所述的旋钮组件，其特征在于，所述旋钮驱动件受外力而旋转，且所述旋钮本体的旋转阻力大于预设阻力值时，所述第一配合件受到第二配合件的作用力产生变形而进入让位状态。
  3. 根据权利要求2所述的旋钮组件，其特征在于，所述第一配合件为具有凸起部的弹片。
  4. 根据权利要求3所述的旋钮组件，其特征在于，所述旋钮驱动件或所述旋钮本体上开设有弹片安装槽，所述弹片的两端安装于所述弹片安装槽中。
  5. 根据权利要求3所述的旋钮组件，其特征在于，所述弹片包括第一引导面，所述旋钮驱动件朝向第一方向旋转时，所述第一配合件的第一引导面 与所述第二配合件接触。
  6. 根据权利要求5所述的旋钮组件，其特征在于，所述第一引导面为弧面或斜面。
  7. 根据权利要求5所述的旋钮组件，其特征在于，所述弹片包括第二引导面，所述旋钮驱动件朝向第二方向旋转时，所述第一配合件的第二引导面与所述第二配合件接触。
  8. 根据权利要求7所述的旋钮组件，其特征在于，所述第二引导面为弧面或斜面。
  9. 根据权利要求1所述的旋钮组件，其特征在于，所述第二配合件包括至少一个配合结构，所述配合结构为凸起或凹槽。
  10. 根据权利要求9所述的旋钮组件，其特征在于，所述配合结构包括第一侧面，所述旋钮驱动件朝向第一方向旋转时，所述配合结构的第一侧面与所述第一配合件接触，所述第一侧面朝向第一方向倾斜。
  11. 根据权利要求10所述的旋钮组件，其特征在于，所述配合结构包括第二侧面，所述旋钮驱动件朝向第二方向旋转时，所述配合结构的第二侧面与第一配合件接触。
  12. 根据权利要求11所述的旋钮组件，其特征在于，所述配合结构的第二侧面为直角面，或所述配合结构的第二侧面朝向第二方向倾斜，且所述配合结构的第二侧面的倾斜程度小于配合结构的第一侧面的倾斜程度。
  13. 根据权利要求1所述的旋钮组件，其特征在于，所述旋钮驱动件包括旋钮外壳，所述旋钮驱动件的内侧面设置有所述第一配合件或第二配合件。
  14. 根据权利要求13所述的旋钮组件，其特征在于，所述旋钮本体的外 侧面设置有第一凸台，所述第一配合件设置于所述旋钮外壳的内侧面，所述第二配合件设置于所述第一凸台的近端侧或远端侧；或
    所述第二配合件设置于所述旋钮外壳的内侧面，所述第一配合件设置于所述第一凸台的近端侧或远端侧。
  15. 根据权利要求14所述的旋钮组件，其特征在于，所述旋钮本体的外侧面还设置有第二凸台，所述第二凸台位于第一凸台的近端侧；
    所述第二凸台上设置有所述第一配合件或第二配合件，且设置于所述第二凸台的第一配合件或第二配合件的高度低于所述第一凸台的高度，所述旋钮本体的远端与所述第一凸台相配合。
  16. 根据权利要求1所述的旋钮组件，其特征在于，还包括位于所述旋钮本体的近端的旋钮后盖，所述旋钮后盖的远端设置有后盖内螺纹，所述旋钮本体的近端设置有与所述后盖内螺纹相配合的本体外螺纹。
  17. 一种圆管型吻合器，其特征在于，包括权利要求1至16中任一项所述的旋钮组件。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116746981A (zh) * 2023-08-18 2023-09-15 浙江归创医疗科技有限公司 侵入器械

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05228100A (ja) * 1991-03-20 1993-09-07 Olympus Optical Co Ltd 内視鏡
CN1923151A (zh) * 2005-09-02 2007-03-07 奥林巴斯医疗株式会社 医疗装置
CN204814027U (zh) * 2015-07-23 2015-12-02 苏州天臣国际医疗科技有限公司 旋钮组件以及具有该旋钮组件的圆管型吻合器
EP2965647A1 (fr) * 2014-07-08 2016-01-13 Mavic S.A.S. Dispositif d'enroulement et de blocage à cliquet d'un lacet de serrage
CN105250006A (zh) * 2011-12-14 2016-01-20 柯惠Lp公司 用于手术吻合装置的支撑组件
CN107708579A (zh) * 2015-06-26 2018-02-16 伊西康有限责任公司 具有砧座状态指示器的外科缝合器
CN209499811U (zh) * 2018-12-18 2019-10-18 苏州天臣国际医疗科技有限公司 旋钮组件及圆管型吻合器

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149817Y1 (zh) 1970-08-20 1976-12-01
JP3154122B2 (ja) 1991-11-29 2001-04-09 綜合警備保障株式会社 警備ロボット搭載漏水検知装置
US5497682A (en) * 1995-07-10 1996-03-12 Hsu; Frank Torsion wrench
JP4333875B2 (ja) 2004-03-09 2009-09-16 株式会社 ニコンビジョン 接眼部材及び双眼鏡
JP4786251B2 (ja) 2005-08-18 2011-10-05 大和ハウス工業株式会社 インパクトレンチ用の締付けトルク管理機構及び同トルク管理アダプター
US7794475B2 (en) 2006-09-29 2010-09-14 Ethicon Endo-Surgery, Inc. Surgical staples having compressible or crushable members for securing tissue therein and stapling instruments for deploying the same
JP2008133695A (ja) 2006-11-29 2008-06-12 Wood One:Kk フラット扉
US8490850B2 (en) 2011-04-29 2013-07-23 Covidien Lp Circular stapler with controlled tissue compression
US9220505B2 (en) 2011-12-16 2015-12-29 Ethicon Endo-Surgery, Inc. Surgical stapling instrument with locking feature to lock anvil actuator
US9693814B2 (en) * 2013-03-14 2017-07-04 DePuy Synthes Products, Inc. Torque limiting instrument, system and related methods
US10194911B2 (en) 2015-06-26 2019-02-05 Ethicon Llc Surgical stapler with ready state indicator
US10758236B2 (en) 2017-09-27 2020-09-01 Ethicon Llc Circular stapling instrument with torque limiting feature
CN111329547A (zh) * 2018-12-18 2020-06-26 苏州天臣国际医疗科技有限公司 旋钮组件及圆管型吻合器
WO2021217404A1 (en) * 2020-04-28 2021-11-04 Covidien Lp Surgical stapling apparatus with tissue gap lock
US20220395274A1 (en) * 2021-06-11 2022-12-15 William Fox Surgical stapler

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05228100A (ja) * 1991-03-20 1993-09-07 Olympus Optical Co Ltd 内視鏡
CN1923151A (zh) * 2005-09-02 2007-03-07 奥林巴斯医疗株式会社 医疗装置
CN105250006A (zh) * 2011-12-14 2016-01-20 柯惠Lp公司 用于手术吻合装置的支撑组件
EP2965647A1 (fr) * 2014-07-08 2016-01-13 Mavic S.A.S. Dispositif d'enroulement et de blocage à cliquet d'un lacet de serrage
CN107708579A (zh) * 2015-06-26 2018-02-16 伊西康有限责任公司 具有砧座状态指示器的外科缝合器
CN204814027U (zh) * 2015-07-23 2015-12-02 苏州天臣国际医疗科技有限公司 旋钮组件以及具有该旋钮组件的圆管型吻合器
CN209499811U (zh) * 2018-12-18 2019-10-18 苏州天臣国际医疗科技有限公司 旋钮组件及圆管型吻合器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116746981A (zh) * 2023-08-18 2023-09-15 浙江归创医疗科技有限公司 侵入器械
CN116746981B (zh) * 2023-08-18 2023-11-07 浙江归创医疗科技有限公司 侵入器械

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