WO2019128720A1 - 把手组件及包括其的吻合器 - Google Patents

把手组件及包括其的吻合器 Download PDF

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Publication number
WO2019128720A1
WO2019128720A1 PCT/CN2018/120698 CN2018120698W WO2019128720A1 WO 2019128720 A1 WO2019128720 A1 WO 2019128720A1 CN 2018120698 W CN2018120698 W CN 2018120698W WO 2019128720 A1 WO2019128720 A1 WO 2019128720A1
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WO
WIPO (PCT)
Prior art keywords
pointer
handle
slider
stapler
torsion spring
Prior art date
Application number
PCT/CN2018/120698
Other languages
English (en)
French (fr)
Inventor
陈志�
郭毅
林江
徐晓伟
Original Assignee
苏州天臣国际医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201721849153.9U external-priority patent/CN208876647U/zh
Priority claimed from CN201711431490.0A external-priority patent/CN109953788B/zh
Priority claimed from CN201711451948.9A external-priority patent/CN109953794B/zh
Priority claimed from CN201721846423.0U external-priority patent/CN208404704U/zh
Priority to JP2020554350A priority Critical patent/JP7029547B2/ja
Priority to CA3086804A priority patent/CA3086804C/en
Application filed by 苏州天臣国际医疗科技有限公司 filed Critical 苏州天臣国际医疗科技有限公司
Priority to BR112020012558-0A priority patent/BR112020012558A2/pt
Priority to US16/957,553 priority patent/US11471160B2/en
Priority to EP18895634.6A priority patent/EP3733089A4/en
Priority to RU2020122630A priority patent/RU2738427C1/ru
Priority to AU2018393322A priority patent/AU2018393322B2/en
Priority to KR1020207019499A priority patent/KR102443146B1/ko
Publication of WO2019128720A1 publication Critical patent/WO2019128720A1/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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/326—Circumcision apparatus
    • 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
    • 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
    • A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
    • A61B2017/00455—Orientation indicators, e.g. recess on the handle
    • 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
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00464—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable for use with different instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00862—Material properties elastic or resilient
    • 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
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2912—Handles transmission of forces to actuating rod or piston
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2912—Handles transmission of forces to actuating rod or piston
    • A61B2017/2919—Handles transmission of forces to actuating rod or piston details of linkages or pivot points
    • 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
    • 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 present invention relates to the field of medical device technology, and in particular to the field of stapler technology, and in particular to a handle assembly and a stapler including the same.
  • Gastrointestinal tumors are one of the most common diseases in humans.
  • round tube type staplers are often used to replace the physiological tissues of the digestive tract in place of the doctor's manual operation.
  • the circular tube stapler is a common surgical instrument. Most of them adopt the axial internal binding method.
  • the endoscopic or end-to-side anastomosis is formed on the esophagus, stomach, intestine and other physiological tissues.
  • the segment tissue is restrained and accommodated in the stapler, and after the firing is completed, a circular anastomosis is formed on the tissue to reconstruct the tissue passage.
  • a round tube stapler includes a stapler body, a handle assembly that movably connects the stapler body, and an anvil assembly that mates with the body.
  • the stapler body includes a staple cartridge assembly disposed at a distal end, the cartridge assembly including an annular staple cartridge, a cutter, and a knob disposed at a proximal end of the body, the knob being rotatable relative to the body.
  • the distal end and the proximal end are relative to the operator, and the end closer to the operator is the proximal end, and the end farther from the operator, that is, the end closer to the surgical position is the distal end.
  • the anvil assembly includes an anvil, an anvil cap disposed on top of the anvil, an anvil disposed within the anvil, and an anvil shaft removably coupled to the stapler body.
  • the anvil shaft passes out from the purse at one end of the tissue, is disposed at the distal end of the stapler body, and rotates the knob to gradually reduce the distance between the anvil and the staple cartridge to reach one. After a suitable distance, the fired state is reached before the hand-held firing device can be gripped to complete the anastomosis.
  • round tube staplers are also increasingly used in the treatment of diseases such as acne.
  • a foreskin stapler is also described in the prior art and is similar in construction to the digestive tract-type stapler described above, except that the glans cap assembly is mated with the body.
  • the glans cap assembly includes an anvil, a glans cap fixedly coupled to the anvil, an anvil, and a central rod removably coupled to the stapler body.
  • the foreskin tissue to be removed is fixed on the glans cap, and then the center rod is disposed at the distal end of the stapler body, and the knob is rotated to gradually reduce the distance between the glans cap and the staple cartridge to a suitable one. After the distance, the fired state is reached, and the hand-held firing device can be gripped to complete the anastomosis.
  • an object of the present invention is to provide a handle assembly and a stapler including the same, in which the first handle and the second handle are not linked when the stapler fails to reach the fired state, and the stapler is not fired. And divide the pointer into two segments, the pointer does not block the rotation of the handle assembly when the first handle is rotated.
  • Embodiments of the present invention provide a handle assembly for firing a stapler, the handle assembly including:
  • the first handle is provided with a sliding slot
  • the sliding slot comprises a first segment and a second segment communicating with each other, wherein the sliding slot is slidably provided with a slider, the slider is located In the first segment of the chute, the first handle and the second handle are not linked;
  • first pointer and a second pointer, the first pointer being connected to the first end of the second pointer, and when the first pointer is rotated in the first direction, driving the second end of the second pointer Rotating in one direction and pushing the slider from the first segment of the chute to the second segment of the chute;
  • the slider is located in the second section of the sliding slot, and when the first handle is rotated in the second direction until the slider is in contact with the second handle, the second handle is linked with the first handle, And the slider pushes the second end of the pointer to rotate in the second direction.
  • the first end of the first pointer and the second end of the second pointer are rotatably connected by a pointer reset structure, and when the slider pushes the second end of the pointer to rotate in a second direction, the pointer is reset The structure is deformed.
  • the pointer reset structure includes a third pin shaft and a third torsion spring sleeved on the third pin shaft, the third pin shaft is disposed at the first end of the second pointer and Fixed to the first pointer, the two ends of the third torsion spring respectively abut the first pointer and the second pointer.
  • the first pointer is provided with a first torsion spring card slot
  • the first end of the second pointer is provided with a second torsion spring card slot
  • two ends of the third torsion spring are respectively embedded in the The first torsion spring card slot and the second torsion spring card slot are described.
  • the pointer reset structure includes a third pin shaft and a tension spring, the third pin shaft is disposed at a first end of the second pointer and is fixed to the first pointer, and the tension spring is disposed Between the first pointer and the second pointer.
  • the second pointer is an elastic pointer, and the second pointer is elastically deformed when the slider pushes the second end of the pointer to rotate in the second direction.
  • the first pointer and the second pointer are integrally formed.
  • the second pointer is made of an elastic resin, a rubber material or a metal material.
  • the second end of the second pointer is bent toward a distal end of the stapler with respect to a first end of the second pointer, and between the first end and the second end of the second pointer Smooth transition.
  • a positioning portion is disposed between the two ends of the first pointer, and the first pointer is rotatably connected to the housing of the stapler through the positioning portion.
  • a fourth pin shaft is disposed in the positioning portion, and a fourth torsion spring is sleeved on the fourth pin shaft, and the fourth pin shaft is fixed on the housing of the stapler. Both ends of the fourth torsion spring respectively abut the housing of the stapler and the first pointer.
  • a protrusion is further disposed between the first end of the first pointer and the positioning portion, and the second end of the first pointer is connected to the first end of the second pointer,
  • the protruding portion corresponds to the position of the pull hook of the pull tab, the proximal end of the pull tab is sleeved on the screw rod, and the distal end of the screw rod is provided with a knob, and the knob is rotated to drive the pull tab toward the stapler Moving the end, the pull tab can pull the first pointer to rotate in the first direction through the protrusion;
  • the first handle or the second handle has a tab abutting portion, and when the first handle and the second handle rotate in the second direction, the tab abutting portion abuts the pull tab, so that the pull tab of the pull tab is The pointer is detached.
  • the first handle is further provided with a slider return spring, and when the slider is located in the second section of the sliding slot, the slider applies a force to the slider return spring to cause the slider
  • the return spring is in a deformed state; when the slider return spring returns from the deformed state to the initial state, the slider is driven to move from the second segment of the chute to the first segment of the chute.
  • the first end and the first end of the second pointer are rotatably connected by a pointer reset structure; the slider is located in a second segment of the chute, and the first handle is in a second direction When the second handle is not in contact with the slider, the force of the slider return spring on the slider is less than the force of the pointer reset structure on the pointer.
  • the second pointer is an elastic pointer
  • the slider is located at the second segment of the chute, and the first handle has not been rotated to the second handle and the slider in the second direction
  • the force of the slider return spring on the slider is less than the force of the second pointer against elastic deformation
  • it also includes:
  • the first pin shaft is disposed in the first handle and the second handle, and is fixed to the housing of the stapler, and the first torsion spring is sleeved on the On the first pin shaft, and the two ends of the first torsion spring respectively abut the housing of the stapler and the second handle;
  • the second pin shaft is fixed to the housing of the stapler
  • the second torsion spring is sleeved on the second pin shaft
  • the second torsion spring The two ends respectively interfere with the housing of the stapler and the first handle.
  • it also includes:
  • first torsion spring and a first pin the first pin is disposed in the first handle and the second handle, the first pin is fixed to the housing of the stapler, the first twist a spring sleeve is disposed on the first pin shaft, and two ends of the first torsion spring respectively abut the housing of the stapler and the second handle;
  • a handle reset compression spring is coupled between the first handle and the housing of the stapler.
  • it also includes:
  • first torsion spring and a first pin
  • the first pin is fixed to the second handle, and is disposed in the first handle
  • the first torsion spring is sleeved on the first pin And the two ends of the first torsion spring respectively abut the first handle and the second handle;
  • the second pin is fixed to the housing of the stapler and is disposed in the second handle, and the second torsion spring is sleeved on the second pin On the shaft, the two ends of the second torsion spring respectively abut the second handle and the housing of the stapler.
  • Embodiments of the present invention also provide a stapler including the handle assembly.
  • the present invention provides a handle assembly and a stapler including the same, by dividing the handle assembly into a first handle and a second handle, only the movement of the second handle can fire the stapler to perform cutting and suturing actions; during use, The doctor can press the first handle regardless of whether the stapler reaches the fired state. However, when the stapler does not reach the fired state, the first handle does not drive the second handle, and the stapler is not fired; The first pointer and the second pointer, when the first handle and the second handle rotate together, the slider can push the second pointer to rotate, so the pointer does not block the rotation of the handle assembly, and the smoothness of the movement of the instrument when the stapler is fired is ensured. To enhance the user experience.
  • FIG. 1 is a schematic structural view of a handle assembly for a stapler according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing the structure of a handle assembly for a conventional round tube type stapler according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a handle assembly for a stapler stapler according to an embodiment of the present invention
  • FIG. 4 to FIG. 9 are schematic structural views of the handle assembly in an initial state according to an embodiment of the present invention.
  • Figure 10 is a front elevational view of a pointer in accordance with an embodiment of the present invention.
  • Figure 11 is a schematic view showing the pointer rotated in a first direction according to an embodiment of the present invention.
  • Figure 12 is a schematic view showing the second pointer rotating in the second direction according to an embodiment of the present invention.
  • Figure 13 is a perspective view of a pointer according to an embodiment of the present invention.
  • Figure 14 is an exploded view of a pointer according to an embodiment of the present invention.
  • 15 to 17 are schematic views showing the structure of the handle assembly in a state of failure in accordance with an embodiment of the present invention.
  • 18 to 21 are schematic structural views of the handle assembly in a fired state according to an embodiment of the present invention.
  • 22 is a schematic view of the slider pushing the second pointer when the handle assembly is in the fired state according to an embodiment of the present invention
  • FIG. 23 is a schematic structural view showing the first hand rotating by pulling a pull tab according to an embodiment of the present invention.
  • Figure 24 is a structural schematic view showing the pull tab of the embodiment of the present invention being ejected to disengage the pointer;
  • Figure 25 is a schematic view showing the structure of a pointer for replacing a third torsion spring with a tension spring according to an embodiment of the present invention
  • 26 is a schematic structural view of a handle assembly according to another embodiment of the present invention.
  • Figure 27 is a front elevational view of a pointer in accordance with another embodiment of the present invention.
  • FIG. 28 is a schematic view showing the pointer rotated in a first direction according to another embodiment of the present invention.
  • Figure 29 is a schematic view showing the second pointer rotated in the second direction according to another embodiment of the present invention.
  • Figure 30 is a schematic structural view of a second pointer according to another embodiment of the present invention.
  • FIG. 31 is a schematic structural diagram of a pointer in an initial state according to another embodiment of the present invention.
  • FIG. 32 and FIG. 33 are schematic diagrams showing the structure of the handle assembly in a state of failure according to another embodiment of the present invention.
  • 34 to 36 are structural views showing the handle assembly in a fired state according to another embodiment of the present invention.
  • the present invention provides a handle assembly for firing a stapler, wherein the handle assembly comprises: a first handle and a second handle, the first handle is provided with a sliding slot, the sliding slot includes a first segment and a second segment, wherein the sliding slot is slidably disposed with a slider, and when the slider is located at the first segment of the sliding slot, the first handle And the second handle is not linked; the first pointer and the second pointer are connected to the first end of the second pointer, and when the first pointer is rotated in the first direction, the second is driven a second end of the pointer rotates in a first direction and urges the slider to move from a first segment of the chute to a second segment of the chute; the slider is located in a second segment of the chute When the first handle is rotated in the second direction until the slider interferes with the second handle, the second handle is interlocked with the first handle, and the slider pushes the second end of the pointer Rotate in the second direction.
  • the doctor can press the first handle regardless of whether the stapler reaches the fired state during use, however, the first handle does not drive the second handle when the stapler does not reach the fired state.
  • the stapler is not fired; the pointer is divided into a first pointer and a second pointer, and when the first handle and the second handle rotate together, the slider can push the second pointer to rotate, so the pointer does not form a rotation of the handle assembly. Blocking to ensure the smooth movement of the instrument when the stapler is fired.
  • a reset mechanism can be further added at the second pointer.
  • the slider pushes the second pointer to rotate.
  • the second pointer can be returned to the initial position under the reset action of the reset mechanism.
  • Fig. 1 shows the structure of a stapler according to an embodiment of the present invention.
  • the distal end of the stapler is provided with a cartridge assembly 72 and an anvil assembly 73
  • the proximal end is provided with a knob 71 and a handle assembly
  • the outside of the handle assembly is provided with a handle housing 16, by which the stapler can be fired by pressing the handle assembly .
  • the present invention divides the handle assembly into the first handle 1 and the second handle 2, and can only fire the stapler when the second handle 2 is rotated.
  • a first pin 31 is simultaneously disposed in the first handle 1 and the second handle 2.
  • the first pin 31 is fixed to the housing 74 of the stapler, and the first torsion spring 32 is sleeved thereon. Both ends of the first torsion spring 32 respectively abut against the housing 74 of the stapler and the second handle 2, and after the second handle 2 is rotated, the second handle 2 can be reset if the external force is released.
  • a second torsion spring 34 and a second pin 33 are provided for the resetting of the first handle 1.
  • the second pin 33 is fixed to the housing 74 of the stapler, the second torsion spring 34 is sleeved on the second pin 33, and the two ends of the second torsion spring 34 respectively abut the housing 74 of the stapler and the first handle 1 .
  • the first handle 1 is further provided with a sliding slot 41 and a slider 42.
  • the sliding slot 41 includes a first section 411 and a second section 412 which are in communication, and the second handle 2
  • the handle portion 25 is included; when the slider 42 is located in the first segment 411 of the sliding groove 41, and the first handle 1 is held in the second direction by the grip, the slider 42 does not interfere with the handle abutting portion 25, and the second handle 2 is located
  • the insurance position that is, the first handle 1 rotates, but does not fire the stapler, and is in a failed state.
  • the second direction is the counterclockwise direction shown in the drawing, but the invention is not limited thereto.
  • the doctor when the doctor holds the first handle 1, the first handle 1 can be easily rotated, but the second handle 2 is not triggered, and since the air is blown at this time, the force for holding the first handle 1 is very small.
  • the doctor can also learn from this operation that the current state of the stapler is in an unfired state and does not cause the housing of the stapler to rupture.
  • the slider 42 When the slider 42 is located in the second section 412 of the chute 41 and the first handle 1 is held in the counterclockwise direction, the slider 42 opposes the handle abutment 25 and drives the second handle 2 to rotate from the secured position to the firing position. .
  • the pusher bar 75 When the second handle 2 is rotated in the counterclockwise direction, the pusher bar 75 is simultaneously pushed to the distal end of the stapler to drive the firing stapler.
  • first segment 411 and the second segment 412 of the chute 41 in the present invention are a relative concept, and are not necessarily the two ends of the chute 41, that is, in the viewing angle shown in the figure.
  • the first section 411 of the chute 41 is located on the right side of the second section 412.
  • the slider 42 is located at the first section 411 and the second section 412 of the sliding slot 41, the first handle 1 is held, and the relationship between the slider 42 and the handle abutting portion 25 is different: the slider 42 is located in the first section of the sliding slot 41. At 411, it does not interfere with the handle abutting portion 25, and when it is located at the second portion 412 of the chute 41, it will interfere with the handle abutting portion 25.
  • the handle assembly of this embodiment further includes a pointer.
  • the pointer includes a first pointer 81 and a second pointer 82, the first end 81 and the first end 821 of the second pointer 82 being rotatably coupled by a pointer reset structure, the first end 811 of the first pointer 81 being along
  • the first direction is rotated from the first position area to the second position area
  • the second end 822 of the second pointer 82 is rotated in the clockwise direction
  • the slider 42 is pushed from the first section 411 of the chute 41 to the chute.
  • the second segment 412 of 41 is the first direction is the clockwise direction shown in the drawing, but the invention is not limited thereto.
  • the window is provided on the stapler body corresponding to the first positional area and the second positional area for observing the position of the first end 811 of the first pointer 81 during use, the first of the first pointer 81
  • the stapler cannot be fired.
  • the stapler can be fired, in order to more intuitively give the doctor.
  • the second position area corresponding to the fired on the window is the green area.
  • the present invention can be applied not only to a conventional round tube type stapler but also to a foreskin stapler.
  • a foreskin stapler For example, as shown in Fig. 3, the structure of the sheath stapler body 9 to which the handle assembly is applied is shown.
  • the distal end of the sheath stapler body 9 includes a cartridge assembly 91, and is additionally provided with a glans cap assembly (not shown) that mates with the cartridge assembly 91.
  • the second handle 2 When the foreskin stapler is used, the second handle 2 is movably connected to one end of the foreskin stapler, and the second end of the second handle 2 is matched with the pusher member of the foreskin stapler, and when the squeezable condition is satisfied, the second handle 2 will Push the nail pushing parts to achieve the firing of the wrapping stapler.
  • the structure of the pointer in different states is shown in Figs.
  • the function of the pointer resetting structure is to keep the second pointer 82 clockwise when the first pointer 81 is rotated clockwise, that is, the pointer can be rotated to the position shown by the broken line in FIG.
  • the second end 822 of the second pointer 82 receives a rightward force, it will rotate counterclockwise with respect to the first pointer 81, that is, the second pointer 82 can be rotated to the position shown by the broken line in FIG. 12, however, After the rightward force is released, the second pointer 82 can again return to the initial solid line position by the restoring force of the pointer resetting structure.
  • This arrangement is to prevent the pointer from obstructing the movement path of the slider 42 when the first handle 1 and the second handle 2 are rotated in conjunction with each other.
  • the slider 42 rotates accordingly.
  • the pointer still has a force to the left side of the slider 42, and the slider 42 will avoid
  • the slider 42 cannot be stopped by the second handle 2, and if the pointer is not deformed, the pointer will be The movement path of the slider 42 is hindered, so that the rotation process of the second handle 2 is not smooth, and the user experience is not good.
  • the present invention divides the pointer into two parts: the first pointer 81 and the second pointer 82.
  • the second pointer 82 rotates counterclockwise to avoid slipping.
  • Block 42 the rotation process causes deformation of the pointer reset structure, and after the first handle 1 is released, the second pointer 82 can be rotated clockwise back to the initial position under the restoration of the pointer reset structure. Therefore, with such a structure, the problem that the handle movement is not smooth when the stapler is fired by using the integral pointer is solved, and the pointer does not affect the normal firing of the second handle 2 at each position, allowing the pointer to be used in the design of the stapler. Interference with other components allows a more compact and compact stapler construction.
  • the first pointer 81 includes a first end 811, a protrusion 813, a positioning portion 814, and a second end 812.
  • the protruding portion 813 corresponds to the position of the hook 61 of the pull tab 6, and the positioning portion 814 is rotatably fixed to the housing 74 of the stapler.
  • the tail portion 62 of the pull tab 6 is fixed to a threaded rod 76 and moves as the threaded rod 76 moves.
  • the screw rod 76 moves to the proximal end to drive the pull tab 6 to move toward the proximal end, and the pull hook 61 of the pull tab 6 can rotate the first pointer 81 in the clockwise direction through the protruding portion 813, so that The second pointer 82 also rotates, which in turn drives the slider 42 to move from the first section 411 of the chute 41 to the second section 412 of the chute 41.
  • the pointer resetting structure includes a third pin 83 and a third torsion spring 84 sleeved outside the third pin 83.
  • the third pin shaft 83 is disposed through the first end 821 of the second pointer 82 and is fixed to the first pointer 81.
  • the first pointer 81 is provided with a first torsion spring slot 841
  • the first end 821 of the second pointer 82 is provided with a second torsion spring slot 842
  • the two ends of the third torsion spring 84 are respectively embedded in the first torsion spring card
  • the groove 841 and the second torsion spring card slot 842 is provided with a third torsion spring slot 842.
  • a fourth pin shaft 85 is disposed in the positioning portion 814, and a fourth torsion spring 86 is sleeved on the fourth pin shaft 85.
  • the fourth pin shaft 85 is fixed to the housing 74 of the stapler, and the second torsion spring 86 is The ends respectively abut the housing 74 of the stapler and the first pointer 81. Therefore, the first pointer 81 can be rotated around the fourth pin shaft 84 when subjected to an external force, and can be restored to the home position by the fourth torsion spring 86 when the external force is released.
  • the second end 822 of the second pointer 82 is curved relative to the first end 821 of the second pointer 82 toward the distal end of the stapler, and the first end 821 to the second end 822 of the second pointer 82
  • the smooth transition between the smooth formation forms a smooth contour, which facilitates smoother relative movement during avoidance, and the second pointer 82 adopts a sheet structure, for example, in a narrow space inside the stapler to meet design use requirements.
  • the first handle 1 includes a first cavity 13 having side walls on both sides.
  • the two side walls of the first cavity 13 are respectively provided with a sliding slot 41.
  • the slider 42 includes two sliding portions 421 and sliding.
  • the two sliding portions 421 are slidably disposed in a sliding slot 41 respectively.
  • the outside of the first handle 1 is provided with a handle housing 16 , and the position of the handle housing 16 corresponding to the sliding slot 41 is also provided with a slot, and the first end and the second end of the slot are respectively respectively associated with the first segment 411 of the sliding slot 41 and The second segment 412 corresponds.
  • the sliding portion 421 is provided with a first limiting structure 43
  • the second end of the slot is provided with a second limiting structure
  • the first limiting structure 43 and the second limiting structure A slider reset compression spring 45 is disposed between each.
  • 15 to 17 show the structure of the handle assembly of this embodiment in a state of failure.
  • the pull tab 6 does not pull the first pointer 81, so the position of the first pointer 81 does not change, the first end 811 of the first pointer 81 is in the first position area, and the second pointer 82 has no force on the slider 42.
  • the slider 42 is still located in the first section 411 of the chute 41, and the slider 42 does not interfere with the handle abutment portion 25 of the second handle 2 in the rotational path of the first handle 1. It should be noted that, in the initial position, the slider 42 is located at the right end of the first section of the chute 41 away from the end of the second section, that is, illustrated by the slider reset compression spring 45.
  • the first end 11 of the first handle 1 is a grip portion, and the second end 12 includes a connecting portion; the first end 21 of the second handle 2 is located inside the cavity of the connecting portion, and the second end 22 is pushed The shank 75 is in contact with it. At this point, the device is in an insured state. Since the torsion force of the second torsion spring 34 is much smaller than the firing force, the first handle 1 can rotate counterclockwise around the first pin shaft 31 when the operator receives a small holding force, and the second handle 2 continues to enter.
  • the inside of the cavity of the first handle 1, that is, the first handle 1 and the second handle 2 are in a non-coupling state, and the second handle 2 does not rotate.
  • the first handle 1 can be easily rotated, but the rotation of the second handle 2 is not driven, and the firing of the stapler cannot be completed.
  • the operator can also get tactile feedback at this time, knowing that the current first pointer 81 has not reached the fired position, and there is no firing.
  • the first handle 1 is reset by the action of the second torsion spring 34.
  • 18 to 21 show the structure of the handle assembly of this embodiment in a fired state.
  • the knob 71 is rotated to cause the screw rod 76 to move the pull tab 6 to the proximal end, and the first pointer 81 is moved in the clockwise direction to the second position area, so that the second pointer 82 pushes the slider 42 toward the chute 41.
  • the second segment 412 moves to interfere with the handle abutment portion 25.
  • the slider 42 opposes the handle abutment 25 and blocks the second handle 2 from continuing into the internal cavity of the first handle 1.
  • the second handle 2 and the first handle 1 become in a linked state.
  • the second handle 2 rotates counterclockwise with the first handle 1, and the second end 22 of the second handle 2 pushes the push rod 75, which pushes the stapler and the annular cutter of the stapler to the tissue for the operation. Stitching and cutting.
  • the slider reset compression spring 45 is further compressed during the movement of the slider 42.
  • the rotation process of the first handle 1 is divided into two steps: firstly, when the slider 42 does not interfere with the second handle 2, the force of the third torsion spring 84 to the second pointer 82 is much larger than that of the slider reset compression spring 45 to the slider 42.
  • the force of the slider 42 will avoid the second pointer 82; after the slider 42 and the second handle 2 are in contact with each other, the slider 42 cannot continue to be avoided due to the force between the second handle 2 and the first handle 1, and will push
  • the second pointer 82 is rotated counterclockwise to implement the second pointer 82 to avoid the slider 42.
  • the motion trajectory of the second pointer 82 can be as shown in FIGS. 21-22.
  • the operator releases the first handle 1, and the deforming force of the slider reset compression spring 45 when it is restored to the original state pushes the slider 42 to slide back to the first section 411 of the chute 41 to return to the initial position.
  • the second pointer 82 also rotates clockwise due to the force of the third torsion spring 84.
  • the reset process of the first pointer 81 can be seen in FIGS. 23 and 24.
  • the hook 61 is in contact with the protruding portion 813 and can drive the first pointer 81 to rotate clockwise.
  • the second handle 2 is further provided with a tab abutting portion 23.
  • the tab abutting portion 23 pushes up the tab 6 at the ejector vertex 231, so that the tab 6 is The hook 61 is disengaged from the protruding portion 813.
  • the state of disengagement can be seen in Fig. 24.
  • the first pointer 81 is automatically restored to the initial position by the action of the fourth torsion spring 86.
  • the first end 51 of the pointer 5 returns to the first positional area, the second end 52 of the pointer 5 is disengaged from the slider 42. Then, after the thrust of the pointer 8 is lost, the slider 42 returns to the first section 411 of the chute 41 by the restoring force of the slider reset compression spring 45 to complete the reset.
  • the stapler is fired, the first handle 1 is released, and the second handle 2 is returned to the secured position under the restoring force of the first torsion spring 31; the first handle 1 is engaged with the second handle 2 under the action of the slider Therefore, it first resets with the second handle 2 while being reset by the second torsion spring 34.
  • a metal piece 77 is disposed in the housing 74 of the stapler corresponding to the first end 811 of the first pointer 81, and when the first pointer 81 returns to the initial position, The metal piece 77 hits and emits a sound, prompting the operator that the pointer has been reset.
  • the centers of rotation of the first handle 1 and the second handle 2 are unified, and the operator's experience is better, in failure.
  • the center of rotation is unchanged, and the opening of the handle design can be made smaller, the appearance is better, and the structure of the handle assembly and the stapler is more stable.
  • the tab abutting portion 23 is closer to the contact point of the tab, and the tab 6 is more easily ejected, and the phenomenon that the jacking failure is not caused and the pointer does not return to the position is less likely to occur.
  • the present invention is not limited thereto, and it is also possible that the first handle 1 and the second handle 2 are connected in other manners, and are all within the scope of the present invention.
  • the second torsion spring and the second pin for resetting the first handle may be replaced with at least one compression spring, and the compression spring is connected between the first handle and the housing of the stapler, and when the first handle is rotated, the compression compression spring is generated. Deformation, when the first handle is released, the compression spring is restored to reset the first handle.
  • a double rotation center may be employed, for example, a first torsion spring and a first pin shaft are also provided; and a second torsion spring and a second pin shaft.
  • the first pin shaft is fixed to the second handle and is disposed in the first handle.
  • the first torsion spring is sleeved on the first pin shaft, and the two ends of the first torsion spring respectively abut the first handle and the second handle, which can be realized.
  • a second handle is fixed; the second pin is fixed to the housing of the stapler and is disposed in the second handle, the second torsion spring is sleeved on the second pin, and the two ends of the second torsion spring respectively abut the second
  • the handle and the housing of the stapler can be used to reset the second handle.
  • the first handle and the second handle are rotated about the first torsion spring and the second torsion spring, respectively.
  • the third torsion spring 84 may be replaced with a tension spring 87 which is disposed between the first pointer 81 and the second pointer 82.
  • the tension spring 87 is pulled to deform, and after the external force is released, the tension spring 87 is recovered and the second pointer 82 is pulled back.
  • 26 to 36 are schematic structural views of a handle assembly according to another embodiment of the present invention.
  • This embodiment differs from the previous embodiment in that the second pointer 82 is not provided with a pointer resetting structure, that is, the third end of the second pointer 82 is not provided with the third pin shaft 83 and the third torsion spring 84.
  • the reset mechanism of the second pointer 82 is that the second pointer 82 is an elastic pointer.
  • FIG. 1 The structure of the pointer in different states is shown in Figs.
  • the second pointer 82 When the first pointer 81 rotates clockwise, the second pointer 82 can be simultaneously rotated clockwise, that is, the pointer can be rotated to the position shown by the broken line in FIG.
  • the second end 822 of the second pointer 82 When the second end 822 of the second pointer 82 receives the rightward force, it will rotate counterclockwise with respect to the first pointer 81, so that the second pointer 82 is elastically deformed, that is, the second pointer 82 can be rotated to FIG.
  • the position shown by the dashed line however, after the force to the right is released, the second pointer 82 can again rely on its own elastic characteristics to restore the original state as shown by the solid line in FIG.
  • the purpose of this arrangement is to prevent the pointer from obstructing the movement path of the slider 42 when the first handle 1 and the second handle 2 are rotated.
  • the slider 42 rotates accordingly.
  • the pointer still has a force to the left side of the slider 42, and the slider 42 will avoid
  • the slider 42 cannot be continued to avoid the pointer because it is blocked by the second handle 2.
  • the pointer if an integral pointer that cannot be elastically deformed is used, the pointer The movement path of the slider 42 is hindered, so that the rotation process of the second handle 2 is not smooth, and the user experience is not good.
  • the present invention divides the pointer into two parts: the first pointer 81 and the second pointer 82.
  • the second end 822 of the second pointer 82 is reversed by the action of the slider 42.
  • the hour hand rotates to avoid the slider 42.
  • This rotation process causes the second pointer 82 to elastically deform, and after the first handle 1 is released, the second pointer 82 can be clockwise under the action of the elastic characteristic of the second pointer 82 itself. Rotate back to the initial position.
  • the second pointer 82 may be made of an elastic resin, a rubber material or a metal material, but is not limited thereto, and other materials having a certain rigidity and elastic properties may be selected as needed.
  • Figs. 26 and 31. 32 and 33 show the structure of the handle assembly of this embodiment in a failed state.
  • the pull tab 6 does not pull the first pointer 81, so the position of the first pointer 81 does not change, the first end 811 of the first pointer 81 is in the first position area, and the second pointer 82 has no effect on the slider 42. force.
  • the slider 42 is still located in the first section 411 of the chute 41, and the slider 42 does not interfere with the handle abutment portion 25 of the second handle 2 in the rotational path of the first handle 1. At this point, the device is in an insured state.
  • the first handle 1 When the operator grips the first handle 1, the first handle 1 can be easily rotated, but the rotation of the second handle 2 is not driven, and the firing of the stapler cannot be completed. The operator can also get tactile feedback at this time, knowing that the current first pointer 81 has not reached the fired position, and there is no firing.
  • 34 to 36 show the structure of the handle assembly of this embodiment in a fired state.
  • the knob 71 is rotated to cause the screw rod 76 to move the pull tab 6 to the proximal end, and the first pointer 81 is moved in the clockwise direction to the second position area, so that the second pointer 82 pushes the slider 42 toward the chute 41.
  • the second segment 412 moves to interfere with the handle abutment portion 25.
  • the slider 42 opposes the handle abutment 25 and blocks the second handle 2 from continuing into the internal cavity of the first handle 1.
  • the second handle 2 and the first handle 1 become in a linked state.
  • the second handle 2 rotates counterclockwise with the first handle 1, and the second end 22 of the second handle 2 pushes the push rod 75, which pushes the stapler and the annular cutter of the stapler to the tissue for the operation. Stitching and cutting.
  • the slider reset compression spring 45 is gradually compressed during the movement of the slider 42.
  • the movement process of the slider 42 is divided into two steps: first, when the slider 42 does not interfere with the second handle 2, the force of the second pointer 82 against the elastic deformation is much greater than the force of the slider reset compression spring 45 to the slider 42, slipping The block 42 will avoid the second pointer 82; after the slider 42 is in contact with the second handle 2, the slider 42 cannot continue to be avoided due to the force between the second handle 2 and the first handle 1, and the second pointer 82 is pushed.
  • the second end 822 is rotated counterclockwise to effect the second pointer 82 to avoid the slider 42.
  • the deformation process of the second pointer 82 can be as shown in FIGS. 35 and 36.
  • the first handle 1 After the stapler is fired, the first handle 1 is released. At this time, the deformation force of the slider return compression spring 45 when it is restored to the original state pushes the slider 42 to slide back to the first section 411 of the chute 41 to return to the initial position.
  • the second pointer 82 is no longer subjected to the thrust of the slider 42, and can be restored to its original state by its own elastic deformation recovery function.
  • the structure of the elastic second pointer 82 in this embodiment can also be combined with the various features in the previous embodiment to form a new technical solution, and all fall within the protection scope of the present invention.
  • the firing and resetting processes of the first handle 1 and the second handle 2 are also similar to the previous embodiment and will not be described again here.
  • An embodiment of the invention also provides a stapler comprising the handle assembly.
  • the stapler does not reach the squeezable state
  • the first handle does not drive the second handle, and the stapler is not fired.
  • the doctor can also judge the firing state through the operation experience. Only when the stapler reaches the squeezable state, the first handle The movement will drive the movement of the second handle and then fire the stapler. Therefore, on the basis of avoiding the stapler being accidentally hit, the cracking of the stapler casing is avoided.
  • the pointer is divided into the first pointer and the second pointer which are rotatably connected, which solves the problem that the handle movement is not smooth when the stapler is fired by using the integral pointer, and the pointer does not affect the normal firing of the second handle when in each position. It allows the pointer to interfere with other components during the design of the stapler, thus enabling a more compact and compact stapler structure and a smoother firing process.
  • the present invention provides a handle assembly and a stapler including the same, by dividing the handle assembly into a first handle and a second handle, only the movement of the second handle can fire the stapler to perform cutting and suturing actions; during use, The doctor can press the first handle regardless of whether the stapler reaches the fired state. However, when the stapler does not reach the fired state, the first handle does not drive the second handle, and the stapler is not fired; The first pointer and the second pointer, when the first handle and the second handle rotate together, the slider can push the second pointer to rotate, so the pointer does not block the rotation of the handle assembly, and the smoothness of the movement of the instrument when the stapler is fired is ensured. To enhance the user's experience, and at the same time when the firing is completed, the second pointer can return to the initial position through the pointer reset structure.

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Abstract

一种把手组件及包括其的吻合器，其中包括第一把手(1)和第二把手(2)，第一把手(1)上设置有滑槽(41)和滑块(42)；以及第一指针(81)和第二指针(82)；滑块(42)位于滑槽(41)的第二段(412)，且第一把手(1)沿第二方向旋转至第二把手(2)与滑块(42)抵触时，第二把手(2)与第一把手(1)联动，且滑块(42)推动第二指针(82)的第二端(822)沿第二方向旋转。将把手组件分为第一把手(1)和第二把手(2)；在吻合器未达到可击发状态时，可以按动第一把手(1)，但是第二把手(2)不会旋转，也就不会击发吻合器；将指针分为第一指针(81)和第二指针(82)，在第一把手(1)和第二把手(2)一起旋转时，滑块(42)可以推动第二指针(82)旋转，因此指针不会对把手组件的旋转形成阻挡，保证吻合器击发时器械运动的顺畅性，提升用户的使用体验。

Description

把手组件及包括其的吻合器 技术领域
本发明涉及医疗器械技术领域，尤其涉及吻合器技术领域，具体涉及一种把手组件及包括其的吻合器。
背景技术
消化道肿瘤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，重建了组织通道。
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把手组件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。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。所述钉砧组件包括钉砧、设置在钉砧顶部的钉砧帽、设置在钉砧内部的刀砧，以及与吻合器本体可拆卸地连接的钉砧轴。在手术过程中，离断去除肿瘤组织后，钉砧轴从组织一端的荷包穿出，配置于吻合器本体的远端，旋转旋钮，使钉砧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。
同时，在泌尿外科领域治疗包皮过长及包茎的手术中，也出现了另外一种形式的圆管型吻合器，即包皮吻合器。包皮吻合器在现有技术中也有描述，其结构类似于上述的消化道圆管型吻合器，区别仅在于与所述本体配合的是龟头帽组件。相似的，所述龟头帽组件包括钉砧、与钉砧固定连 接的龟头帽、刀砧，以及与吻合器本体可拆卸地连接的中心杆。在手术过程中，把待切除的包皮组织固定在龟头帽上，然后把中心杆配置于吻合器本体的远端，旋转旋钮，使龟头帽与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，才能握持把手击发器械完成吻合。
随着技术的发展，人们已经对圆管型吻合器的击发传动机构进行了改进，增加了保险机制，在吻合器未达到可击发状态时，医生即使按动把手，由于保险机制的作用，把手也无法按动，从而避免了器械击发造成的手术失败。然而，实际情况下，仍然存在有一些缺陷，例如医生的使用体验不高，另外医生如果用力按动把手，可能会导致吻合器的机壳开裂。
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把手组件及包括其的吻合器，在吻合器未达到可击发状态时，第一把手和第二把手不联动，也就不会击发吻合器，且将指针分为两段，在第一把手旋转时，指针不会对把手组件的旋转产生阻挡。
本发明实施例提供一种把手组件，用于吻合器的击发，所述把手组件包括：
第一把手和第二把手，所述第一把手上设置有滑槽，所述滑槽包括相连通的第一段和第二段，所述滑槽中可滑动设置有滑块，所述滑块位于所述滑槽的第一段时，所述第一把手和第二把手不联动；
第一指针和第二指针，所述第一指针与所述第二指针的第一端相连接，所述第一指针沿第一方向旋转时，带动所述第二指针的第二端沿第一方向旋转，并推动所述滑块从所述滑槽的第一段移动至所述滑槽的第二段；
所述滑块位于所述滑槽的第二段，当所述第一把手沿第二方向旋转至所述滑块与所述第二把手抵触时，所述第二把手与所述第一把手联动，且所述滑块推动所述指针的第二端沿第二方向旋转。
可选地，所述第一指针与所述第二指针的第一端通过指针复位结构可旋转连接，所述滑块推动所述指针的第二端沿第二方向旋转时，所述指针 复位结构产生变形。
可选地，所述指针复位结构包括第三销轴和套设于所述第三销轴上的第三扭簧，所述第三销轴穿设于所述第二指针的第一端且固定于所述第一指针，所述第三扭簧的两端分别抵触所述第一指针和所述第二指针。
可选地，所述第一指针设置有第一扭簧卡槽，所述第二指针的第一端设置有第二扭簧卡槽，所述第三扭簧的两端分别嵌设于所述第一扭簧卡槽和所述第二扭簧卡槽中。
可选地，所述指针复位结构包括第三销轴和拉簧，所述第三销轴穿设于所述第二指针的第一端且固定于所述第一指针，所述拉簧设置于所述第一指针和所述第二指针之间。
可选地，所述第二指针为弹性指针，所述滑块推动所述指针的第二端沿第二方向旋转时，所述第二指针发生弹性变形。
可选地，所述第一指针和第二指针为一体成型。
可选地，所述第二指针采用弹性树脂、橡胶材料或金属材料。
可选地，所述第二指针的第二端相对于所述第二指针的第一端朝向所述吻合器的远端弯曲，且所述第二指针的第一端到第二端之间平滑过渡。
可选地，所述第一指针的两端之间设置有定位部，所述第一指针通过所述定位部可旋转连接至所述吻合器的壳体。
可选地，所述定位部中穿设有第四销轴，所述第四销轴上套设有第四扭簧，所述第四销轴固定于所述吻合器的壳体上，所述第四扭簧的两端分别抵触所述吻合器的壳体和所述第一指针。
可选地，所述第一指针的第一端和所述定位部之间还设置有突出部，所述第一指针的第二端与所述第二指针的第一端相连接，所述突出部与一拉片的拉钩的位置相对应，所述拉片的近端套设于丝杆，所述丝杆远端设有旋钮，旋转所述旋钮带动所述拉片向吻合器的近端移动，所述拉片可通过所述突出部拉动所述第一指针沿第一方向旋转；
所述第一把手或第二把手具有拉片抵触部，所述第一把手和第二把手沿第二方向旋转时，所述拉片抵触部抵触所述拉片，使所述拉片的拉钩与所述指针脱离。
可选地，所述第一把手还设置有滑块复位弹簧，所述滑块位于所述滑槽的第二段时，所述滑块对所述滑块复位弹簧施加作用力使所述滑块复位弹簧处于变形状态；所述滑块复位弹簧从变形状态恢复至初始状态时，带动所述滑块从所述滑槽的第二段向所述滑槽的第一段移动。
可选地，所述第一指针与所述第二指针的第一端通过指针复位结构可旋转连接；所述滑块位于所述滑槽的第二段，且所述第一把手沿第二方向尚未旋转至所述第二把手与所述滑块抵触时，所述滑块复位弹簧对所述滑块的作用力小于所述指针复位结构对所述指针的作用力。
可选地，所述第二指针为弹性指针；所述滑块位于所述滑槽的第二段时，且所述第一把手沿第二方向尚未旋转至所述第二把手与所述滑块抵触时，所述滑块复位弹簧对所述滑块的作用力小于所述第二指针抵抗弹性变形的力。
可选地，还包括：
第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手和第二把手中，且固定于所述吻合器的壳体，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述吻合器的壳体和所述第二把手；
第二扭簧和第二销轴，所述第二销轴固定于所述吻合器的壳体，所述第二扭簧套设于所述第二销轴上，且所述第二扭簧的两端分别抵触所述吻合器的壳体和所述第一把手。
可选地，还包括：
第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手和第二把手中，所述第一销轴固定于所述吻合器的壳体，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述吻合器的壳体和所述第二把手；
把手复位压簧，连接于所述第一把手和所述吻合器的壳体之间。
可选地，还包括：
第一扭簧和第一销轴，所述第一销轴固定于所述第二把手，且穿设于所述第一把手中，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述第一把手和所述第二把手；
第二扭簧和第二销轴，所述第二销轴固定于所述吻合器的壳体且穿设于所述第二把手中，所述第二扭簧套设于所述第二销轴上，且所述第二扭簧的两端分别抵触所述第二把手和所述吻合器的壳体。
本发明实施例还提供一种吻合器，包括所述的把手组件。
本发明所提供的把手组件及包括其的吻合器具有下列优点：
本发明提供了一种把手组件及包括其的吻合器，通过将把手组件分为第一把手和第二把手，只有第二把手的运动才能够击发吻合器执行切割和缝合动作；在使用过程中，无论吻合器是否达到可击发状态，医生均可以按动第一把手，然而，在吻合器未达到可击发状态时，第一把手不会驱动第二把手，也就不会击发吻合器；将指针分为第一指针和第二指针，在第一把手和第二把手一起旋转时，滑块可以推动第二指针旋转，因此指针不会对把手组件的旋转形成阻挡，保证吻合器击发时器械运动的顺畅性，提升用户的使用体验。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显。
图1是本发明一实施例的把手组件用于吻合器的结构示意图；
图2是本发明一实施例的把手组件用于常规圆管型吻合器的结构示意图；
图3是本发明一实施例的把手组件用于包皮吻合器的结构示意图；
图4～图9是本发明一实施例的把手组件处于初始状态时的结构示意图；
图10是本发明一实施例的指针的正视图；
图11是本发明一实施例的指针沿第一方向旋转的示意图；
图12是本发明一实施例的第二指针沿第二方向旋转的示意图；
图13是本发明一实施例的指针的立体图；
图14是本发明一实施例的指针的爆炸图；
图15～图17是本发明一实施例的把手组件处于失效状态时的结构示 意图；
图18～图21是本发明一实施例的把手组件处于击发状态时的结构示意图；
图22是本发明一实施例的把手组件处于击发状态时，滑块推动第二指针旋转的示意图；
图23是本发明一实施例的拉片拉动第一指针旋转的结构示意图；
图24是本发明一实施例的拉片被顶出从而脱离指针的结构示意图；
图25是本发明一实施例的将第三扭簧替换为拉簧的指针的结构示意图；
图26是本发明另一实施例的把手组件的结构示意图；
图27是本发明另一实施例的指针的正视图；
图28是本发明另一实施例的指针沿第一方向旋转的示意图；
图29是本发明另一实施例的第二指针沿第二方向旋转的示意图；
图30是本发明另一实施例的第二指针的结构示意图；
图31是本发明另一实施例的初始状态下的指针的结构示意图；
图32和图33是本发明另一实施例的把手组件处于失效状态下的结构示意图；
图34～36是本发明另一实施例的把手组件处于击发状态下的结构示意图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本发明将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。在图中相同的附图标记表示相同或类似的结构，因而将省略对它们的重复描述。
为了解决现有技术中的技术问题，本发明提供了一种把手组件，用于吻合器的击发，其特征在于，所述把手组件包括：第一把手和第二把手，所述第一把手上设置有滑槽，所述滑槽包括相连通的第一段和第二段，所 述滑槽中可滑动设置有滑块，所述滑块位于所述滑槽的第一段时，所述第一把手和第二把手不联动；第一指针和第二指针，所述第一指针与所述第二指针的第一端相连接，所述第一指针沿第一方向旋转时，带动所述第二指针的第二端沿第一方向旋转，并推动所述滑块从所述滑槽的第一段移动至所述滑槽的第二段；所述滑块位于所述滑槽的第二段，当所述第一把手沿第二方向旋转至所述滑块与所述第二把手抵触时，所述第二把手与所述第一把手联动，且所述滑块推动所述指针的第二端沿第二方向旋转。
因此，通过采用本发明，在使用过程中，无论吻合器是否达到可击发状态，医生均可以按动第一把手，然而，在吻合器未达到可击发状态时，第一把手不会驱动第二把手，也就不会击发吻合器；将指针分为第一指针和第二指针，在第一把手和第二把手一起旋转时，滑块可以推动第二指针旋转，因此指针不会对把手组件的旋转形成阻挡，保证吻合器击发时器械运动的顺畅性。
此外，可以在第二指针处进一步增加复位机制，击发时，滑块推动第二指针旋转，在击发完成后，第二指针可以在复位机制的复位作用下再返回至初始位置。下面结合两个实施例具体介绍本发明的把手组件和吻合器的结构。其中，这两个实施例采用了两种不同的复位机制，即分别采用指针复位结构和将第二指针设置为弹性指针的方式。本发明不限于此，采用其他的复位机制也是可以的。
如图1示出了本发明一实施例的吻合器的结构。其中吻合器的远端设置有钉仓组件72和钉砧组件73，近端设置有旋钮71和把手组件，把手组件的外部设置有把手外壳16，通过按动把手组件，可以实现吻合器的击发。
图2～9示出了本发明一实施例的把手组件位于初始状态的结构，其中为了清楚显示把手组件的结构以及其与其他部分的配合，部分壳体或部分组件已经省略。为了实现上述目的，本发明将把手组件进行分段，分为第一把手1和第二把手2，并且只有当第二把手2旋转时才是可以击发吻合器的。第一把手1和第二把手2中同时穿设有第一销轴31，第一销轴31固定于吻合器的壳体74，且其上套设有第一扭簧32。第一扭簧32的两端分别抵触所述吻合器的壳体74和所述第二把手2，在第二把手2旋转后， 如果解除外力，可以将第二把手2复位。
此外，还设置了第二扭簧34和第二销轴33，用于第一把手1的复位。第二销轴33固定于吻合器的壳体74，第二扭簧34套设于第二销轴33上，且第二扭簧34的两端分别抵触吻合器的壳体74和第一把手1。
为了实现第一把手1和第二把手2的联动，在第一把手1上还设置有滑槽41和滑块42，滑槽41包括相连通的第一段411和第二段412，第二把手2包括把手抵触部25；当滑块42位于滑槽41的第一段411，且第一把手1被握持沿第二方向旋转时，滑块42不与把手抵触部25抵触，第二把手2位于保险位置，即第一把手1虽然旋转，但不会击发吻合器，处于失效状态。在该实施例中，第二方向为图中示出的逆时针方向，但本发明不限于此。因此，医生握持第一把手1时，可以轻易地使第一把手1旋转，但却不会触发第二把手2，同时因为此时是空击发状态，握持第一把手1的力是非常小的。医生也可以通过此操作体验了解到当前吻合器的状态是处于未击发状态，并且不会造成吻合器的机壳破裂。
当滑块42位于滑槽41的第二段412，且第一把手1被握持沿逆时针方向旋转时，滑块42与把手抵触部25抵触且驱使第二把手2从保险位置向击发位置旋转。当第二把手2沿逆时针方向旋转时，会同时推动推钉杆75向吻合器的远端移动，进而驱动击发吻合器。
需要注意的是，本发明中所述滑槽41的第一段411和第二段412是一个相对概念，而不一定是滑槽41的两个端部，即在图中示出的视角中，滑槽41的第一段411位于第二段412的右侧。滑块42位于滑槽41的第一段411和第二段412时握持第一把手1，滑块42与把手抵触部25的关系是不一样的：滑块42位于滑槽41的第一段411时，不会与把手抵触部25干涉，而位于滑槽41的第二段412时，将会与把手抵触部25干涉。
为了实现滑块42在滑槽41中的滑动，该实施例的把手组件还包括指针。在该实施例中，指针包括第一指针81和第二指针82，第一指针81与第二指针82的第一端821通过指针复位结构可旋转连接，第一指针81的第一端811沿第一方向从第一位置区域旋转至第二位置区域时，带动第二指针82的第二端822沿顺时针方向旋转，并推动滑块42从滑槽41的 第一段411移动至滑槽41的第二段412。该实施例中，第一方向为图中示出的顺时针方向，但本发明不限于此。其中在吻合器本体上对应于第一位置区域和第二位置区域处设有一视窗，用于观察第一指针81的第一端811在使用过程中所处的位置，第一指针81的第一端811在第一位置区域时，是处于保险状态的，此时吻合器不能击发，当第一指针81的第一端811处于第二位置区域时，吻合器可以击发，为了更直观地给医生以提示，在视窗上对应于可击发的第二位置区域即为绿色区域。
本发明不仅可以应用于常规的圆管型吻合器，还可以应用于包皮吻合器。例如图3所示，示出了应用该把手组件的包皮吻合器本体9的结构。包皮吻合器本体9的远端包括钉仓组件91，另外还设置有与钉仓组件91配合的龟头帽组件(图中未示出)。采用包皮吻合器时，第二把手2活动连接到包皮吻合器的一端，第二把手2的第二端与包皮吻合器的推钉部件相配合，当满足可击发条件时，第二把手2会推动推钉部件，实现包皮吻合器的击发。
如图10～12示出了指针在不同状态下的结构。指针复位结构的作用是保持第一指针81顺时针旋转时，可以同时带动第二指针82顺时针旋转，即指针可以旋转到图11中虚线示出的位置。而当第二指针82的第二端822受到向右的作用力时，则会相对于第一指针81逆时针旋转，即第二指针82可以旋转到图12中虚线示出的位置，然而在向右的作用力解除后，第二指针82又可以依靠指针复位结构的恢复力而返回初始的实线位置。这样设置的目的是为了避免在第一把手1和第二把手2联动而旋转时，指针对滑块42的移动路径形成阻碍。当滑块42位于滑槽41的第二段412且第一把手1逆时针旋转时，滑块42随之旋转，此时，指针对滑块42仍然有向左侧的力，滑块42会避让指针，随着第一把手1继续旋转，滑块42与把手抵触部25抵触后，滑块42由于被第二把手2阻挡而不能继续避让指针，此时如果采用无法形变的整体指针，指针就会对滑块42的移动路径形成阻碍，使得第二把手2的旋转击发过程不顺畅，用户体验不好。
因此，本发明将指针分为两个部分：第一指针81和第二指针82，滑块42不能继续避让指针时，在滑块42的作用下，第二指针82会逆时针 旋转以避让滑块42，此旋转过程会使指针复位结构产生变形，而在松开第一把手1后，在指针复位结构的恢复作用下，第二指针82又可以顺时针旋转回到初始位置。因此，采用此种结构，解决了采用整体指针而造成吻合器击发时把手运动不顺畅的问题，指针在各个位置时都不会影响第二把手2的正常击发，允许在吻合器设计时，指针与其他部件发生干涉，因此可以实现更加紧凑小巧的吻合器的结构。
图13～14示出了该实施例中一种指针的具体结构。第一指针81包括第一端811、突出部813、定位部814和第二端812。突出部813与一拉片6的拉钩61位置相对应，定位部814可旋转固定于吻合器的壳体74。拉片6的尾部62固定于一丝杆76上并且会随着丝杆76的移动而移动。旋钮71沿一方向旋转时，丝杆76会向近端移动，带动拉片6向近端移动，拉片6的拉钩61可以通过突出部813带动第一指针81沿顺时针方向旋转，以使得第二指针82同样旋转，进而带动滑块42从滑槽41的第一段411向滑槽41的第二段412移动。
在该实施例中，指针复位结构包括第三销轴83和套设在第三销轴83外部的第三扭簧84。第三销轴83穿设于第二指针82的第一端821且固定于第一指针81。第一指针81设置有第一扭簧卡槽841，第二指针82的第一端821设置有第二扭簧卡槽842，第三扭簧的84两端分别嵌设于第一扭簧卡槽841和第二扭簧卡槽842中。
定位部814中穿设有第四销轴85，第四销轴85上套设有第四扭簧86，第四销轴85固定于吻合器的壳体74上，第四扭簧86的两端分别抵触吻合器的壳体74和第一指针81。因此第一指针81在受到外力时可以绕第四销轴84旋转，并且在解除外力时可以通过第四扭簧86恢复至原位。
在该实施例中，第二指针82的第二端822相对于第二指针82的第一端821朝向吻合器的远端弯曲，且第二指针82的第一端821到第二端822之间平滑过渡，形成顺滑形态的弧线轮廓，有利于避让时的相对运动更加顺畅，并且第二指针82采用薄片结构，例如在吻合器内部狭小的空间内满足设计使用需求。
在该实施例中，第一把手1包括具有两侧侧壁的第一腔体13，第一腔 体13的两个侧壁分别设置有一滑槽41，滑块42包括两个滑动部421和滑动部421之间的抵触部422，两个滑动部421分别可滑动设置于一滑槽41中。第一把手1的外部设置有把手壳体16，把手壳体16与滑槽41对应的位置也设置有开槽，开槽的第一端和第二端分别与滑槽41的第一段411和第二段412相对应。为了实现滑块42在移动后的限位，滑动部421设置有第一限位结构43，开槽的第二端设置有第二限位结构，第一限位结构43和第二限位结构之间分别设置有一滑块复位压簧45。在滑块42向滑槽411的第一端411移动时，滑块42对滑块复位压簧45施加握持力使其产生形变。
如图15～17示出了该实施例的把手组件位于失效状态时的结构。该状态下，拉片6未拉动第一指针81，因此第一指针81的位置没有变动，第一指针81的第一端811处于第一位置区域，第二指针82对滑块42没有作用力。滑块42仍然位于滑槽41的第一段411，在第一把手1的旋转路径上，滑块42与第二把手2的把手抵触部25不发生干涉。要说明的是，初始位置时滑块42在滑块复位压簧45的作用下位于滑槽41第一段的远离第二段的尽头即图示的右端位置。当然也可以是由第二指针82的第二端822来对滑块42的初始位置进行限位。在该实施例中，第一把手1的第一端11为握持部，第二端12包括连接部；第二把手2的第一端21位于连接部的腔体内部，第二端22与推钉杆75抵触。此时，器械处于保险状态。由于第二扭簧34的扭力较击发力要小得多，第一把手1在受到操作者较小的握持力时，即可绕第一销轴31逆时针旋转，第二把手2继续进入第一把手1的腔体内部，即第一把手1和第二把手2处于不联动状态，第二把手2不发生旋转。操作者握紧第一把手1时，可以轻易地使第一把手1旋转，但是却不会带动第二把手2的转动，也就无法完成吻合器的击发。操作者此时也能得到触觉反馈，了解到当前第一指针81未到达可击发位置，没有击发。当外力解除时，第一把手1在第二扭簧34的作用下复位。
同时如图17所示，此时滑块42虽然与第二指针82抵触，但是由于滑块复位压簧45的作用小于指针复位结构给第二指针82的力，因此滑块 42可以被第二指针82推动，沿图中箭头方向有一个小的位移，以实现避让指针。
如图18～21示出了该实施例的把手组件位于击发状态时的结构。该过程中，转动旋钮71使得丝杆76带动拉片6向近端移动，带动第一指针81沿顺时针方向移动至第二位置区域，使得第二指针82推动滑块42向滑槽41的第二段412移动至与把手抵触部25干涉。在第一把手1被握持逆时针旋转时，滑块42与把手抵触部25抵触并且阻挡第二把手2继续进入第一把手1的内部腔体中。由此，第二把手2和第一把手1变成联动状态。第二把手2随第一把手1逆时针旋转，第二把手2的第二端22推动推钉杆75，推钉杆75会进一步推动吻合器的推钉片和环形切刀，对进行手术的组织进行缝合和切割。
滑块复位压簧45在滑块42的移动过程中被进一步压缩。第一把手1的旋转过程分为两步：首先滑块42没有与第二把手2抵触时，由于第三扭簧84给第二指针82的作用力远大于滑块复位压簧45给滑块42的力，滑块42会避让第二指针82；在滑块42与第二把手2抵触后，由于第二把手2和第一把手1之间的作用力，滑块42无法继续避让，则会推动第二指针82沿逆时针旋转，实现第二指针82避让滑块42。第二指针82的运动轨迹可以如图21～22所示。在吻合器击发完成后，操作者松开第一把手1，滑块复位压簧45在恢复原状时的变形力会推动滑块42重新向滑槽41的第一段411滑动，恢复到初始位置。而第二指针82由于第三扭簧84的作用力也会顺时针旋转回复。
第一指针81的复位过程可以参见图23和图24。图23中，拉钩61与突出部813接触并且可以带动第一指针81顺时针旋转。第二把手2上还设置有拉片抵触部23，第二把手2从保险位置向击发位置旋转时，拉片抵触部23会在顶出顶点231处顶起拉片6，使拉片6的拉钩61与突出部813脱离。脱离的状态可以参见图24，此时，第一指针81会在第四扭簧86的作用下自动恢复至初始位置。由于指针5的第一端51返回至第一位置区域，指针5的第二端52与滑块42脱离。然后，在失去了指针8的推力后，滑块42在滑块复位压簧45的恢复力的作用下会返回至滑槽41的 第一段411，完成复位。在吻合器击发完成后，松开第一把手1，第二把手2也在第一扭簧31的恢复力下返回至保险位置；第一把手1由于是和第二把手2在滑块的作用下啮合的，因此其首先随着第二把手2复位，同时又在第二扭簧34的作用下复位。
进一步地，在该实施例中，吻合器的壳体74中与第一指针81的第一端811对应的位置处设置有一个金属片77，当第一指针81恢复至初始位置时，会与金属片77撞击，发出声音，提示操作者指针已复位。
在该实施例中，由于第一把手1和第二把手2都是绕第一销轴31旋转的，因此，第一把手1和第二把手2的旋转中心统一，操作者的体验更好，在失效状态下和击发状态下旋转中心都不变，同时可以将把手设计地开口更小，外观更好看，把手组件和吻合器的结构也更加稳定。同时拉片抵触部23距离拉片接触点更近，拉片6更容易被顶出，不易出现顶出失败而导致指针不回位的现象。
然而本发明并不限于此，第一把手1和第二把手2采用其他方式连接也是可以的，均属于本发明的保护范围之内。例如可以将用于第一把手复位的第二扭簧和第二销轴更换为至少一个压簧，压簧连接于第一把手和吻合器的壳体之间，当第一把手旋转时，压缩压簧产生变形，松开第一把手时，压簧恢复使得第一把手复位。进一步地，也可以采用双旋转中心的方式，例如同样设置第一扭簧和第一销轴；以及第二扭簧和第二销轴。第一销轴固定于第二把手，且穿设于第一把手中，第一扭簧套设于第一销轴上，且第一扭簧的两端分别抵触第一把手和第二把手，可以实现第一把手的复位；第二销轴固定于吻合器的壳体且穿设于第二把手中，第二扭簧套设于第二销轴上，且第二扭簧的两端分别抵触第二把手和吻合器的壳体，可以实现第二把手的复位。第一把手和第二把手分别绕第一扭簧和第二扭簧旋转。
此处仅给出了指针的一种可选的结构，但本发明不限于此。采用其他的结构变形也是可以的。例如图25所示，也可以将第三扭簧84替换为拉簧87，拉簧87设置于第一指针81和第二指针82之间。在第二指针82相对于第一指针81逆时针旋转时，拉动拉簧87使其变形，解除外力后， 拉簧87回收，将第二指针82拉回。
如图26～36所示，为本发明另一实施例的把手组件的结构示意图。该实施例与前一实施例的区别在于：第二指针82未设置指针复位结构，即第二指针82的第一端未设置第三销轴83和第三扭簧84。在该实施例中，第二指针82的复位机制在于第二指针82是弹性指针。
如图27～30示出了指针在不同状态下的结构。第一指针81顺时针旋转时，可以同时带动第二指针82顺时针旋转，即指针可以旋转到图28中虚线示出的位置。而当第二指针82的第二端822受到向右的作用力时，则会相对于第一指针81逆时针旋转，使得第二指针82产生弹性变形，即第二指针82可以旋转到图29中虚线示出的位置，然而在向右的作用力解除后，第二指针82又可以依靠本身的弹性特征而恢复如图29中实线示出的原始状态。这样设置的目的是为了避免在第一把手1和第二把手2旋转时，指针对滑块42的移动路径形成阻碍。当滑块42位于滑槽41的第二段412且第一把手1逆时针旋转时，滑块42随之旋转，此时，指针对滑块42仍然有向左侧的力，滑块42会避让指针，随着第一把手1继续旋转，滑块42与把手抵触部25抵触后，滑块42由于被第二把手2阻挡而不能继续避让指针，此时如果采用无法产生弹性形变的整体指针，指针就会对滑块42的移动路径形成阻碍，使得第二把手2的旋转击发过程不顺畅，用户体验不好。
因此，本发明将指针分为两个部分：第一指针81和第二指针82，滑块42不能继续避让指针时，在滑块42的作用下，第二指针82的第二端822会逆时针旋转以避让滑块42，此旋转过程会使第二指针82产生弹性变形，而在松开第一把手1后，在第二指针82本身弹性特征的作用下，第二指针82又可以顺时针旋转回到初始位置。因此，采用此种结构，解决了之前采用整体指针而造成吻合器击发时把手运动不顺畅的问题，指针在各个位置时都不会影响第二把手2的正常击发，允许在吻合器设计时，指针与其他部件发生干涉，因此可以实现更加紧凑小巧的吻合器的结构。第二指针82可以采用弹性树脂、橡胶材料或金属材料制成，但不限于此，其他具有一定刚度且具有弹性特性的材料也可以根据需要选用。
如图26和图31示出了该实施例的把手组件位于初始状态时的结构。图32和图33示出了该实施例的把手组件处于失效状态时的结构。在失效状态下，拉片6未拉动第一指针81，因此第一指针81的位置没有变动，第一指针81的第一端811处于第一位置区域，第二指针82对滑块42没有作用力。滑块42仍然位于滑槽41的第一段411，在第一把手1的旋转路径上，滑块42与第二把手2的把手抵触部25不发生干涉。此时，器械处于保险状态。操作者握紧第一把手1时，可以轻易地使第一把手1旋转，但是却不会带动第二把手2的转动，也就无法完成吻合器的击发。操作者此时也能得到触觉反馈，了解到当前第一指针81未到达可击发位置，没有击发。
此时滑块42虽然与第二指针82抵触，但是由于滑块复位压簧45的作用小于第二指针82抵抗弹性形变的力，因此滑块42可以被第二指针82推动，沿图中箭头方向有一个小的位移，以实现避让指针。
如图34～36示出了该实施例的把手组件位于击发状态时的结构。该过程中，转动旋钮71使得丝杆76带动拉片6向近端移动，带动第一指针81沿顺时针方向移动至第二位置区域，使得第二指针82推动滑块42向滑槽41的第二段412移动至与把手抵触部25干涉。在第一把手1被握持逆时针旋转时，滑块42与把手抵触部25抵触并且阻挡第二把手2继续进入第一把手1的内部腔体中。由此，第二把手2和第一把手1变成联动状态。第二把手2随第一把手1逆时针旋转，第二把手2的第二端22推动推钉杆75，推钉杆75会进一步推动吻合器的推钉片和环形切刀，对进行手术的组织进行缝合和切割。
滑块复位压簧45在滑块42的移动过程中被逐渐压缩。滑块42的运动过程分为两步：首先滑块42没有与第二把手2抵触时，由于第二指针82抵抗弹性形变的力远大于滑块复位压簧45给滑块42的力，滑块42会避让第二指针82；在滑块42与第二把手2抵触后，由于第二把手2和第一把手1之间的作用力，滑块42无法继续避让，则会推动第二指针82的第二端822沿逆时针旋转，实现第二指针82避让滑块42。第二指针82的变形过程可以如图35和图36所示。在吻合器击发完成后松开第一把手 1，此时，滑块复位压簧45在恢复原状时的变形力会推动滑块42重新向滑槽41的第一段411滑动，恢复到初始位置。而第二指针82不再受到滑块42的推力，可以依靠自身的弹性变形恢复作用恢复原状。
该实施例中弹性的第二指针82的结构也可以与前一实施例中的各个特征进行组合，形成新的技术方案，且均属于本发明的保护范围之内。第一把手1和第二把手2的击发和复位过程也与前一实施例类似，此处不再予以赘述。
本发明实施例还提供一种吻合器，包括所述把手组件。在吻合器未达到可击发状态时，第一把手不会驱动第二把手，也就不会击发吻合器，医生也可以通过操作体验来判断击发状态，只有吻合器达到可击发状态时，第一把手的运动才会带动第二把手的运动，进而击发吻合器。从而在避免吻合器被误击发的基础上，同时避免发生吻合器机壳开裂的情况。并且将指针分为可旋转连接的第一指针和第二指针，解决了采用整体指针而造成吻合器击发时把手运动不顺畅的问题，指针在各个位置时都不会影响第二把手的正常击发，允许在吻合器设计时，指针与其他部件发生干涉，因此可以实现更加紧凑小巧的吻合器的结构和更加顺畅的击发过程。
本发明所提供的把手组件及包括其的吻合器具有下列优点：
本发明提供了一种把手组件及包括其的吻合器，通过将把手组件分为第一把手和第二把手，只有第二把手的运动才能够击发吻合器执行切割和缝合动作；在使用过程中，无论吻合器是否达到可击发状态，医生均可以按动第一把手，然而，在吻合器未达到可击发状态时，第一把手不会驱动第二把手，也就不会击发吻合器；将指针分为第一指针和第二指针，在第一把手和第二把手一起旋转时，滑块可以推动第二指针旋转，因此指针不会对把手组件的旋转形成阻挡，保证吻合器击发时器械运动的顺畅性，提升用户的使用体验，同时在击发完成时，第二指针可以通过指针复位结构返回初始位置。
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 (19)

  1. 一种把手组件，用于吻合器的击发，其特征在于，所述把手组件包括：
    第一把手和第二把手，所述第一把手上设置有滑槽，所述滑槽包括相连通的第一段和第二段，所述滑槽中可滑动设置有滑块，所述滑块位于所述滑槽的第一段时，所述第一把手和第二把手不联动；
    第一指针和第二指针，所述第一指针与所述第二指针的第一端相连接，所述第一指针沿第一方向旋转时，带动所述第二指针的第二端沿第一方向旋转，并推动所述滑块从所述滑槽的第一段移动至所述滑槽的第二段；
    所述滑块位于所述滑槽的第二段，当所述第一把手沿第二方向旋转至所述滑块与所述第二把手抵触时，所述第二把手与所述第一把手联动，且所述滑块推动所述指针的第二端沿第二方向旋转。
  2. 根据权利要求1所述的把手组件，其特征在于，所述第一指针与所述第二指针的第一端通过指针复位结构可旋转连接，所述滑块推动所述指针的第二端沿第二方向旋转时，所述指针复位结构产生变形。
  3. 根据权利要求2所述的把手组件，其特征在于，所述指针复位结构包括第三销轴和套设于所述第三销轴上的第三扭簧，所述第三销轴穿设于所述第二指针的第一端且固定于所述第一指针，所述第三扭簧的两端分别抵触所述第一指针和所述第二指针。
  4. 根据权利要求3所述的把手组件，其特征在于，所述第一指针设置有第一扭簧卡槽，所述第二指针的第一端设置有第二扭簧卡槽，所述第三扭簧的两端分别嵌设于所述第一扭簧卡槽和所述第二扭簧卡槽中。
  5. 根据权利要求2所述的把手组件，其特征在于，所述指针复位结构包括第三销轴和拉簧，所述第三销轴穿设于所述第二指针的第一端且固定于所述第一指针，所述拉簧设置于所述第一指针和所述第二指针之间。
  6. 根据权利要求1所述的把手组件，其特征在于，所述第二指针为弹性指针，所述滑块推动所述指针的第二端沿第二方向旋转时，所述第二指针发 生弹性变形。
  7. 根据权利要求6所述的把手组件，其特征在于，所述第一指针和第二指针为一体成型。
  8. 根据权利要求6所述的把手组件，其特征在于，所述第二指针采用弹性树脂、橡胶材料或金属材料。
  9. 根据权利要求1所述的把手组件，其特征在于，所述第二指针的第二端相对于所述第二指针的第一端朝向所述吻合器的远端弯曲，且所述第二指针的第一端到第二端之间平滑过渡。
  10. 根据权利要求1所述的把手组件，其特征在于，所述第一指针的两端之间设置有定位部，所述第一指针通过所述定位部可旋转连接至所述吻合器的壳体。
  11. 根据权利要求10所述的把手组件，其特征在于，所述定位部中穿设有第四销轴，所述第四销轴上套设有第四扭簧，所述第四销轴固定于所述吻合器的壳体上，所述第四扭簧的两端分别抵触所述吻合器的壳体和所述第一指针。
  12. 根据权利要求10所述的把手组件，其特征在于，所述第一指针的第一端和所述定位部之间还设置有突出部，所述第一指针的第二端与所述第二指针的第一端相连接，所述突出部与一拉片的拉钩的位置相对应，所述拉片的近端套设于丝杆，所述丝杆远端设有旋钮，旋转所述旋钮带动所述拉片向吻合器的近端移动，所述拉片可通过所述突出部拉动所述第一指针沿第一方向旋转；
    所述第一把手或第二把手具有拉片抵触部，所述第一把手和第二把手沿第二方向旋转时，所述拉片抵触部抵触所述拉片，使所述拉片的拉钩与所述指针脱离。
  13. 根据权利要求1所述的把手组件，其特征在于，所述第一把手还设置有滑块复位弹簧，所述滑块位于所述滑槽的第二段时，所述滑块对所述滑块复位弹簧施加作用力使所述滑块复位弹簧处于变形状态；所述滑块复位弹簧从变形状态恢复至初始状态时，带动所述滑块从所述滑槽的第二段向所述 滑槽的第一段移动。
  14. 根据权利要求13所述的把手组件，其特征在于，所述第一指针与所述第二指针的第一端通过指针复位结构可旋转连接；所述滑块位于所述滑槽的第二段，且所述第一把手沿第二方向尚未旋转至所述第二把手与所述滑块抵触时，所述滑块复位弹簧对所述滑块的作用力小于所述指针复位结构对所述指针的作用力。
  15. 根据权利要求13所述的把手组件，其特征在于，所述第二指针为弹性指针；所述滑块位于所述滑槽的第二段时，且所述第一把手沿第二方向尚未旋转至所述第二把手与所述滑块抵触时，所述滑块复位弹簧对所述滑块的作用力小于所述第二指针抵抗弹性变形的力。
  16. 根据权利要求1所述的把手组件，其特征在于，还包括：
    第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手和第二把手中，且固定于所述吻合器的壳体，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述吻合器的壳体和所述第二把手；
    第二扭簧和第二销轴，所述第二销轴固定于所述吻合器的壳体，所述第二扭簧套设于所述第二销轴上，且所述第二扭簧的两端分别抵触所述吻合器的壳体和所述第一把手。
  17. 根据权利要求1所述的把手组件，其特征在于，还包括：
    第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手和第二把手中，所述第一销轴固定于所述吻合器的壳体，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述吻合器的壳体和所述第二把手；
    把手复位压簧，连接于所述第一把手和所述吻合器的壳体之间。
  18. 根据权利要求1所述的把手组件，其特征在于，还包括：
    第一扭簧和第一销轴，所述第一销轴固定于所述第二把手，且穿设于所述第一把手中，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述第一把手和所述第二把手；
    第二扭簧和第二销轴，所述第二销轴固定于所述吻合器的壳体且穿设于所述第二把手中，所述第二扭簧套设于所述第二销轴上，且所述第二扭簧的 两端分别抵触所述第二把手和所述吻合器的壳体。
  19. 一种吻合器，其特征在于，包括权利要求1至18中任一项所述的把手组件。
PCT/CN2018/120698 2017-12-26 2018-12-12 把手组件及包括其的吻合器 WO2019128720A1 (zh)

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