WO2016107448A1 - Surgical operating instrument - Google Patents

Surgical operating instrument Download PDF

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Publication number
WO2016107448A1
WO2016107448A1 PCT/CN2015/098179 CN2015098179W WO2016107448A1 WO 2016107448 A1 WO2016107448 A1 WO 2016107448A1 CN 2015098179 W CN2015098179 W CN 2015098179W WO 2016107448 A1 WO2016107448 A1 WO 2016107448A1
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WO
WIPO (PCT)
Prior art keywords
surgical instrument
coil
rack
rotating ring
proximal end
Prior art date
Application number
PCT/CN2015/098179
Other languages
French (fr)
Chinese (zh)
Inventor
陈望东
舒拓
傅开芬
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
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 DE212015000296.9U priority Critical patent/DE212015000296U1/en
Priority to JP2017600066U priority patent/JP3213927U/en
Publication of WO2016107448A1 publication Critical patent/WO2016107448A1/en

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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
    • A61B17/068—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
    • 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
    • A61B17/07207—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 the staples being applied sequentially
    • 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
    • A61B17/11—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
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • 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
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
    • A61B2017/2929—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft with a head rotatable about the longitudinal axis of the shaft

Definitions

  • the invention belongs to the technical field of medical device manufacturing, and in particular relates to a surgical instrument.
  • the stapler is a medical device that is often used in the surgical operation of physiological tissues. It is an alternative to traditional manual suture equipment used in medicine. Due to the development of modern technology and the improvement of production technology, the quality of stapler currently used in clinical practice. Reliable, easy to use, tight and elastic, especially its fast suturing, easy operation and few side effects and surgical complications. Sometimes it can make the tumor surgery in the past unresectable to be resected, which is very popular with clinical surgeons at home and abroad. Favor and respect.
  • laparoscopic surgical stapler is commonly used in the digestive tract in the esophagus, stomach, duodenum, small intestine, colon, rectum, appendix, gallbladder, pancreas and spleen, etc.
  • the cutting and anastomosis of the lungs and trachea in the respiratory tract is also used for cutting and anastomosis of the bladder and uterus in the genitourinary system, which can reduce the operation time and improve the quality of surgery.
  • an embodiment of the present invention provides a surgical instrument, including:
  • An instrument body a rotating ring matched with the instrument body, pivotally connecting the firing handle of the instrument body;
  • the surgical instrument further includes a coil acting member
  • the coil When the surgical instrument is in an initial state, the coil is arranged to allow a rotation about its axis, the rack is in contact with the coil action member, and an orientation is applied to the coil action member The force of the proximal end of the surgical instrument;
  • the rack is separated from the coil acting member when the surgical instrument is in a closed state and a fired state, and the coil acting member contacts the inner wall surface of the coil, and at least in the coil A tightening force is applied to the coil in the radial direction.
  • a gap is provided between the coil acting member and the inner wall surface of the coil when the surgical instrument is in an initial state.
  • an elastic member that cooperates with the rotating ring acting member is further disposed in the instrument body, and the elastic member is opposite to the rotating ring when the surgical instrument is in an initial state.
  • the action member is always A force is applied toward the distal end of the surgical instrument.
  • the distal end of the rack is provided with a first abutting surface
  • the proximal end of the rotating ring member is provided with a second abutting surface
  • the instrument body is provided with a third abutting surface facing the distal end of the surgical instrument, and the rotating ring acting member is provided with a fourth end facing the proximal end of the surgical instrument.
  • the elastic member is sandwiched between the third abutting surface and the fourth abutting surface.
  • the rotating ring acting member has at least two acting portions extending radially in the rotating ring, and the instrument housing is provided with a limiting hole for engaging the acting portion.
  • the action portion is movable in the limiting hole, and in the closed state and the fired state of the surgical instrument, passes through the limiting hole in the radial direction of the rotating ring, and faces the inner wall surface of the rotating ring conflict.
  • a distal end surface of the rotating ring acting member is parallel to an end surface of the limiting hole toward a proximal end of the surgical instrument, and a proximal end surface of the rotating ring acting member is The limiting aperture is parallel to the end face of the distal end of the surgical instrument.
  • the two acting portions extend in opposite directions.
  • the contact surface of the action portion with the inner wall surface of the coil is disposed such that each portion of the contact surface simultaneously contacts or separates from the inner wall surface of the coil.
  • the instrument body further includes a rack blocking block, and the rack is provided with a stop block that cooperates with the rack blocking block, and the surgical instrument is at In an initial state, the rack blocking block is located at a distal end of the stop block and restricts movement of the rack to a distal end of the surgical instrument; when the surgical instrument is in a closed state, the A rack blocking block is located at a proximal end of the stop block and limits movement of the rack to a proximal end of the surgical instrument.
  • the surgical instrument provided by the present invention can fasten the relative position of the rotating ring of the surgical instrument in its circumferential direction in the closed state and the fired state, preventing the rotating ring from closing in the surgical instrument. And the wrong rotation in the firing state, to avoid harm to human tissue and reduce the risk of surgery.
  • FIG. 1 is a partial front elevational view of a surgical instrument in accordance with an embodiment of the present invention
  • Figure 2 is a cross-sectional view of Figure 1A-A of the surgical instrument in an initial state in accordance with an embodiment of the present invention
  • FIG. 3 is a schematic view showing the internal structure of the surgical instrument in an initial state according to an embodiment of the present invention
  • Figure 4 is a cross-sectional view of Figure 1A-A of the surgical instrument in a closed state and in a fired state in accordance with an embodiment of the present invention
  • FIG. 5 is an internal structural diagram of the surgical instrument in a closed state and a fired state according to an embodiment of the present invention
  • the surgical instrument of the present invention is specifically explained by taking a laparoscopic surgical cutting stapler as an example, but it should be noted that the technical spirit involved in the following embodiments may be alternatively utilized. Go to other forms of stapler.
  • the surgical instrument includes an instrument body 10 , a coil 20 that is coupled to the instrument body 10 , and a firing handle 30 that pivotally connects the instrument body 10 . .
  • the distal end of the instrument body 10 is also provided with a staple cartridge assembly that includes an anvil and a staple cartridge, and a cutter.
  • the surgical instrument when the surgical instrument is in an initial state, the anvil and the staple cartridge are open, the cutter is located at a proximal end of the cartridge assembly; and the surgical instrument is in a closed state
  • the anvil and the staple cartridge are closed, and the physiological tissue to be clamped therebetween, the cutter moving a certain distance to the distal end of the surgical instrument relative to the initial state, but overall still Located at a proximal end of the cartridge assembly; the anvil and staple cartridge remain closed when the surgical instrument is in a fired state, the cutter being moved distally from the proximal end of the cartridge assembly, cutting
  • the clamped tissue is sutured and can be stopped at the distal end of the cartridge assembly to stop moving.
  • the instrument body 10 is provided with a rack 102.
  • the rack 102 can be oriented at the proximal end of the surgical instrument under the action of the firing handle 30. mobile.
  • the surgical instrument also includes a coiling action member 104.
  • the coil 20 in the initial state of the surgical instrument, the coil 20 is arranged to allow rotation about its axis, the rack 102 is in contact with the coil action member 104, and The loop action member 104 applies a force toward the proximal end of the surgical instrument; at this time, the loop action member 104 can be provided with a gap between the inner wall surface 202 of the coil to ensure the The coil 20 is rotatable about its axis.
  • the coil action member 104 can also be in slight contact with the inner wall surface 202 of the coil, but does not affect the rotation of the coil 20 about its axis.
  • the required force is slightly larger than the case where a gap is provided between the coil acting member 104 and the inner wall surface of the coil.
  • the distal end of the rack 102 is provided with a first abutting surface 1022
  • the proximal end of the rotating ring member 104 is provided with a second abutting surface 1042.
  • first abutment surface 1022 is disposed toward a proximal end of the surgical instrument
  • second abutment surface 1042 is disposed toward a distal end of the surgical instrument.
  • the first abutting surface 1022 and the second abutting surface 1042 are parallel, and the first abutting surface 1022 and the second abutting surface 1042 are both perpendicular to an axis of the coil 20 .
  • the rack 102 in the closed state and the fired state of the surgical instrument, the rack 102 is separated from the coil acting member 104, and the rotating ring acting member 104 contacts the rotating coil.
  • the wall 202 and a tightening force are applied to the coil 20 at least in the radial direction of the coil 20.
  • the tensioning force can keep the rotating ring 2 from rotating smoothly about its axis, or requires a large external force relative to the initial state to overcome the between the rotating ring 20 and the rotating ring acting member 104. Friction can make it rotate. It can be understood that the tension here can not rotate the coil at least when it is mishandled.
  • an elastic member 106 is also disposed in the instrument body 10 to engage the rotating ring acting member 104.
  • the elastic member 106 is a compression spring.
  • the instrument body 10 is provided with a third abutting surface 108 facing the distal end of the surgical instrument, and the rotating ring acting member 104 is provided with a fourth abutting surface 1044 facing the proximal end of the surgical instrument, the elasticity
  • the piece 106 is clamped between the third abutting surface 108 and the fourth abutting surface 1044.
  • the third abutting surface 108 and the fourth abutting surface 1044 are parallel, and the third abutting surface 108 and the fourth abutting surface 1044 are both perpendicular to an axis of the coil 20 .
  • the resilient member 106 In the initial state of the surgical instrument, the resilient member 106 is in a compressed state that applies a force to the rotating ring member 104 toward the distal end of the surgical instrument.
  • the elastic member 106 remains in a compressed state when the surgical instrument is in the closed state and the fired state, so that the elastic member 106 is held between the third abutting surface 108 and the fourth abutting surface 1044 and is always given
  • the fourth abutting surface 1044 is a distal force.
  • the ring-shaped action member 104 has at least two acting portions 1046 and 1048 extending radially from the rotating ring 20, and the instrument housing 10 is provided with a limiting hole for engaging the acting portions 1046 and 1048. 110, 112, the action portion 1046, 1048 is movable in the limiting hole 110, 112, and passes through the radial direction of the coil 20 in the closed state and the fired state of the surgical instrument
  • the limiting holes 110, 112 are in contact with the inner wall surface 202 of the coil 20.
  • the two acting portions 1046, 1048 may be disposed to extend in opposite directions.
  • the acting portions 1046, 1048 do not pass through the limiting holes 110, 112, the acting portions 1046, 1048 and the inner wall of the rotating ring
  • the contact faces of 202 are disposed flush with the outer wall faces of the stop holes 110, 112.
  • distal end surface of the rotating ring member 104 is parallel to the end surface of the limiting hole 110, 112 toward the proximal end of the surgical instrument, and the proximal end surface of the rotating ring action member 104 and the limit end
  • the bit holes 110, 112 are parallel toward the end face of the distal end of the surgical instrument.
  • a contact surface of the action portion 1046, 1048 with the inner wall surface 202 of the coil is disposed such that each portion of the contact surface simultaneously contacts or separates from the inner wall surface 202 of the coil.
  • the inner wall surface 202 of the coil is tapered, and the extending length of the acting portion 1046, 1048 from the proximal end to the distal end thereof is gradually reduced to form a contact surface for cooperation.
  • the tapered bevel is tapered
  • a rack blocking block 114 is further disposed in the instrument body 10, and the rack 102 is provided with a stop block 1024 that cooperates with the rack blocking block 114.
  • the stop block 1024 When the surgical instrument is in an initial state, the stop block 1024 is located at a proximal end of the rack block 114 and restricts movement of the rack 102 toward a distal end of the surgical instrument; During the closing of the surgical instrument, the rack 102 moves distally, the stop block 1024 over the rack blocking block 114; the stop block is in the closed firing state of the surgical instrument 1024 is located at the distal end of the rack block 114 and limits movement of the rack toward the proximal end of the surgical instrument.
  • the technical solution of the present embodiment will be described below in conjunction with the use procedure of the surgical instrument in the present embodiment, so as to be easily understood.
  • the rack 102 In the initial state of the surgical instrument, the rack 102 is incapable of moving toward the distal end of the surgical instrument due to the restriction of the rack blocking block 114. At this time, the first abutting surface 1022 of the rack 102 is in contact with the second abutting surface 1042 of the rotating ring action member 104, and a gap is formed between the rotating ring acting member 104 and the inner wall surface 202 of the rotating ring, or The elastic member 106 is in a compressed state with a slight contact as described above. In this way, the operator can smoothly rotate the coil to adjust the orientation of the cartridge assembly.
  • the firing handle 30 is operated to close the staple cartridge and the anvil of the cartridge assembly.
  • the rack 102 moves distally, and the stopper 1024 passes over the tooth.
  • the strip blocks 114 and is located at the distal end of the rack blocking block 114.
  • the first abutting surface 1022 provided at the distal end of the rack 102 is also moved distally. Since the elastic member 106 is always in a compressed state, the action of the elastic member 106 can push the rotating ring acting member. 104 is moved toward the distal end of the surgical instrument until the action portions 1046, 1048 of the coil action member 104 pass out of the limit holes 110, 112 to apply tension to the inner wall surface 202 of the coil .
  • the operator can rotate or rotate the coil 20 about its axis in the closed state and the fired state, and the relative position of the coil 20 in the circumferential direction thereof is tightened to prevent the coil 20 from being in the position.
  • the surgical instrument is closed and the wrong rotation in the state of firing, to avoid harming human tissue and reducing the risk of surgery.

Abstract

A surgical operating instrument comprises an instrument body (10), a rotary ring (20), a triggering handle (30), and a rack (102) fitting the triggering handle (30). The rack (102) can move from a proximal end to a distal end of the surgical operating instrument under the action of the triggering handle (30). The surgical operating instrument further comprises a rotary ring action member (104). The rotary ring (20) is set to be allowed to rotate around the axis of the surgical operating instrument when the surgical operating instrument is in an initial state. The rack (102) makes contact with the rotary ring action member (104), and exerts an acting force on the rotary ring action member (104) towards the proximal end of the surgical operating instrument. When the surgical operating instrument is in closed and triggered states, the rack (102) is separated from the rotary ring action member (104), the rotary ring action member (104) makes contact with an inner wall surface (202) of the rotary ring, and applies a tensile force to the rotary ring (20) at least in the radial direction of the rotary ring (20). The surgical operating instrument can prevent the rotary ring (20) from rotating by mistake when the surgical operating instrument is in the closed and triggered states, avoid harms to human tissues, and reduce surgical risks.

Description

外科手术器械Surgical instrument
本申请要求了申请日为2014年12月30日，申请号为201410841638.8，发明名称为“外科手术器械”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims the priority of the Chinese Patent Application Serial No. PCT Application No. No. No. No. No. Publication No. No.
技术领域Technical field
本发明属于医疗器械制造技术领域，具体涉及一种外科手术器械。The invention belongs to the technical field of medical device manufacturing, and in particular relates to a surgical instrument.
背景技术Background technique
吻合器是对生理组织进行外科手术时经常使用的一种医疗器械，它是医学上使用的替代传统手工缝合的设备，由于现代科技的发展和制作技术的改进，目前临床上使用的吻合器质量可靠，使用方便，严密、松紧合适，尤其是其缝合快速、操作简便及很少有副作用和手术并发症等优点，有时还使得过去无法切除的肿瘤手术得以病灶切除，很受国内外临床外科医生的青睐和推崇。The stapler is a medical device that is often used in the surgical operation of physiological tissues. It is an alternative to traditional manual suture equipment used in medicine. Due to the development of modern technology and the improvement of production technology, the quality of stapler currently used in clinical practice. Reliable, easy to use, tight and elastic, especially its fast suturing, easy operation and few side effects and surgical complications. Sometimes it can make the tumor surgery in the past unresectable to be resected, which is very popular with clinical surgeons at home and abroad. Favor and respect.
在腔镜外科手术中，腔镜外科切割吻合器通常被用于消化道中食管、胃、十二指肠、小肠、结肠、直肠、阑尾、胆、胰和脾等切割吻合手术，也被用于呼吸道中肺和气管等切割吻合手术，还被用于泌尿生殖系统中膀胱和子宫等切割吻合手术，可以减少手术时间，提高手术质量。In laparoscopic surgery, laparoscopic surgical stapler is commonly used in the digestive tract in the esophagus, stomach, duodenum, small intestine, colon, rectum, appendix, gallbladder, pancreas and spleen, etc. The cutting and anastomosis of the lungs and trachea in the respiratory tract is also used for cutting and anastomosis of the bladder and uterus in the genitourinary system, which can reduce the operation time and improve the quality of surgery.
发明内容Summary of the invention
本发明一实施方式的目的在于提供一种外科手术器械。It is an object of one embodiment of the present invention to provide a surgical instrument.
为实现上述发明目的，本发明一实施方式提供一种外科手术器械，包括：In order to achieve the above object, an embodiment of the present invention provides a surgical instrument, including:
器械本体、与所述器械本体配接的旋圈，枢轴连接所述器械本体的击发把手；An instrument body, a rotating ring matched with the instrument body, pivotally connecting the firing handle of the instrument body;
及与所述击发把手配合的齿条，所述齿条可在所述击发把的作用下沿所述外科手术器械的近端朝远端方向移动，其中，And a rack that cooperates with the firing handle, the rack being movable in a distal direction along the proximal end of the surgical instrument under the action of the firing handle, wherein
所述外科手术器械还包括一旋圈作用件；且The surgical instrument further includes a coil acting member;
在所述外科手术器械处于初始状态下，所述旋圈被设置为允许绕其轴线转动状态，所述齿条与所述旋圈作用件接触，并给所述旋圈作用件施加一朝向所述外科手术器械近端的作用力；When the surgical instrument is in an initial state, the coil is arranged to allow a rotation about its axis, the rack is in contact with the coil action member, and an orientation is applied to the coil action member The force of the proximal end of the surgical instrument;
在所述外科手术器械处于闭合状态及击发状态下，所述齿条与所述旋圈作用件分离，且所述旋圈作用件接触所述旋圈内壁面，并至少在所述旋圈的径向上对所述旋圈施加一张紧力。The rack is separated from the coil acting member when the surgical instrument is in a closed state and a fired state, and the coil acting member contacts the inner wall surface of the coil, and at least in the coil A tightening force is applied to the coil in the radial direction.
作为本发明一实施方式的进一步改进，在所述外科手术器械处于初始状态下，所述旋圈作用件与所述旋圈内壁面之间设有间隙。As a further improvement of an embodiment of the present invention, a gap is provided between the coil acting member and the inner wall surface of the coil when the surgical instrument is in an initial state.
作为本发明一实施方式的进一步改进，在所述器械本体内还设有配合所述旋圈作用件的弹性件，在所述外科手术器械处于初始状态下，所述弹性件对所述旋圈作用件始终 施加一朝向所述外科手术器械远端的作用力。As a further improvement of an embodiment of the present invention, an elastic member that cooperates with the rotating ring acting member is further disposed in the instrument body, and the elastic member is opposite to the rotating ring when the surgical instrument is in an initial state. The action member is always A force is applied toward the distal end of the surgical instrument.
作为本发明一实施方式的进一步改进，所述齿条的远端设有第一抵触面，所述旋圈作用件的近端设有第二抵触面，在所述外科手术器械处于初始状态下，所述第一抵触面和所述第二抵触面相抵触。As a further improvement of an embodiment of the present invention, the distal end of the rack is provided with a first abutting surface, and the proximal end of the rotating ring member is provided with a second abutting surface, when the surgical instrument is in an initial state The first abutting surface and the second abutting surface are in conflict.
作为本发明一实施方式的进一步改进，所述器械本体内设有朝向所述外科手术器械远端的第三抵触面，所述旋圈作用件设有朝向所述外科手术器械近端的第四抵触面，所述弹性件夹持于所述第三抵触面和第四抵触面之间。As a further improvement of an embodiment of the present invention, the instrument body is provided with a third abutting surface facing the distal end of the surgical instrument, and the rotating ring acting member is provided with a fourth end facing the proximal end of the surgical instrument. The elastic member is sandwiched between the third abutting surface and the fourth abutting surface.
作为本发明一实施方式的进一步改进，所述旋圈作用件在所述旋圈径向上延伸设有至少两个作用部，所述器械壳体设有配合所述作用部的限位孔，所述作用部可在所述限位孔中移动，并在所述外科手术器械处于闭合状态及击发状态下，在所述旋圈径向上穿过所述限位孔，与所述旋圈的内壁面相抵触。As a further improvement of an embodiment of the present invention, the rotating ring acting member has at least two acting portions extending radially in the rotating ring, and the instrument housing is provided with a limiting hole for engaging the acting portion. The action portion is movable in the limiting hole, and in the closed state and the fired state of the surgical instrument, passes through the limiting hole in the radial direction of the rotating ring, and faces the inner wall surface of the rotating ring conflict.
作为本发明一实施方式的进一步改进，所述旋圈作用件的远端端面与所述限位孔朝向所述外科手术器械近端的端面平行，所述旋圈作用件的近端端面与所述限位孔朝向所述外科手术器械远端的端面平行。As a further improvement of an embodiment of the present invention, a distal end surface of the rotating ring acting member is parallel to an end surface of the limiting hole toward a proximal end of the surgical instrument, and a proximal end surface of the rotating ring acting member is The limiting aperture is parallel to the end face of the distal end of the surgical instrument.
作为本发明一实施方式的进一步改进，所述两个作用部的延伸方向相反。As a further improvement of an embodiment of the present invention, the two acting portions extend in opposite directions.
作为本发明一实施方式的进一步改进，所述作用部与所述旋圈内壁面的接触面被设置为所述接触面的各部分同时与所述旋圈内壁面接触或分离。According to a further improvement of an embodiment of the present invention, the contact surface of the action portion with the inner wall surface of the coil is disposed such that each portion of the contact surface simultaneously contacts or separates from the inner wall surface of the coil.
作为本发明一实施方式的进一步改进，所述器械本体内还设有一齿条阻挡块，所述齿条上设有与所述齿条阻挡块配合的止挡块，在所述外科手术器械处于初始状态下，所述齿条阻挡块位于所述止挡块的远端，并限制所述齿条向所述外科手术器械的远端移动；在所述外科手术器械处于闭合状态下，所述齿条阻挡块位于所述止挡块的近端，并限制所述齿条向所述外科手术器械的近端移动。As a further improvement of an embodiment of the present invention, the instrument body further includes a rack blocking block, and the rack is provided with a stop block that cooperates with the rack blocking block, and the surgical instrument is at In an initial state, the rack blocking block is located at a distal end of the stop block and restricts movement of the rack to a distal end of the surgical instrument; when the surgical instrument is in a closed state, the A rack blocking block is located at a proximal end of the stop block and limits movement of the rack to a proximal end of the surgical instrument.
与现有技术相比，本发明提供的外科手术器械在闭合状态和击发状态时，可紧固所述外科手术器械的旋圈在其圆周方向上的相对位置，防止旋圈在外科手术器械闭合和击发状态下的误转动，避免伤害人体组织，减少手术风险。Compared with the prior art, the surgical instrument provided by the present invention can fasten the relative position of the rotating ring of the surgical instrument in its circumferential direction in the closed state and the fired state, preventing the rotating ring from closing in the surgical instrument. And the wrong rotation in the firing state, to avoid harm to human tissue and reduce the risk of surgery.
附图说明DRAWINGS
图1是本发明一实施方式中外科手术器械的局部正视图；1 is a partial front elevational view of a surgical instrument in accordance with an embodiment of the present invention;
图2是本发明一实施方式中外科手术器械处于初始状态下的图1A-A剖视图；Figure 2 is a cross-sectional view of Figure 1A-A of the surgical instrument in an initial state in accordance with an embodiment of the present invention;
图3是本发明一实施方式中外科手术器械处于初始状态下的内部结构示意图；3 is a schematic view showing the internal structure of the surgical instrument in an initial state according to an embodiment of the present invention;
图4是本发明一实施方式中外科手术器械处于闭合状态及击发状态下的图1A-A剖视图；Figure 4 is a cross-sectional view of Figure 1A-A of the surgical instrument in a closed state and in a fired state in accordance with an embodiment of the present invention;
图5是本发明一实施方式中外科手术器械处于闭合状态及击发状态下的内部结构示 意图。FIG. 5 is an internal structural diagram of the surgical instrument in a closed state and a fired state according to an embodiment of the present invention; FIG. intention.
具体实施方式detailed description
以下将结合附图所示的具体实施方式对本发明进行详细描述。但这些实施方式并不限制本发明，本领域的普通技术人员根据这些实施方式所做出的结构、方法、或功能上的变换均包含在本发明的保护范围内。The invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, the embodiments are not intended to limit the invention, and the structural, method, or functional changes made by those skilled in the art in accordance with the embodiments are included in the scope of the present invention.
本发明内所描述的表达位置与方向的词，均是以器械操作者作为参照，靠近操作者的一端为近端，远离操作者的一端为远端。The words expressing position and orientation described in the present invention are referenced by the operator of the device, with one end near the operator being the proximal end and one end remote from the operator being the distal end.
在本发明的实施方式中，以腔镜外科切割吻合器为示例对本发明的外科手术器械做具体的阐释，但应当说明的是，在下述的实施方式中所涉及的技艺精神可以被替换地利用到其它形式的吻合器上。In the embodiment of the present invention, the surgical instrument of the present invention is specifically explained by taking a laparoscopic surgical cutting stapler as an example, but it should be noted that the technical spirit involved in the following embodiments may be alternatively utilized. Go to other forms of stapler.
如图1所示，在本发明一实施方式中，所述外科手术器械包括器械本体10、与所述器械本体10配接的旋圈20，以及枢轴连接所述器械本体10的击发把手30。As shown in FIG. 1 , in an embodiment of the invention, the surgical instrument includes an instrument body 10 , a coil 20 that is coupled to the instrument body 10 , and a firing handle 30 that pivotally connects the instrument body 10 . .
所述器械本体10的远端还设有钉仓组件，所述钉仓组件包括钉砧和钉仓，以及切刀。The distal end of the instrument body 10 is also provided with a staple cartridge assembly that includes an anvil and a staple cartridge, and a cutter.
在本实施方式中，所述外科手术器械处于初始状态时，所述钉砧和钉仓呈打开状，所述切刀位于所述钉仓组件的近端；所述外科手术器械处于闭合状态时，所述钉砧和钉仓闭合，其间可夹紧待生理组织，所述切刀相对于所述初始状态而言，向所述外科手术器械的远端移动了一定距离，但总体而言仍然位于所述钉仓组件的近端；所述外科手术器械处于击发状态时，所述钉砧和钉仓仍然保持闭合，所述切刀由所述钉仓组件的近端向远端移动，切割缝合被夹紧的组织，并可在所述钉仓组件的远端受到限位停止移动。In this embodiment, when the surgical instrument is in an initial state, the anvil and the staple cartridge are open, the cutter is located at a proximal end of the cartridge assembly; and the surgical instrument is in a closed state The anvil and the staple cartridge are closed, and the physiological tissue to be clamped therebetween, the cutter moving a certain distance to the distal end of the surgical instrument relative to the initial state, but overall still Located at a proximal end of the cartridge assembly; the anvil and staple cartridge remain closed when the surgical instrument is in a fired state, the cutter being moved distally from the proximal end of the cartridge assembly, cutting The clamped tissue is sutured and can be stopped at the distal end of the cartridge assembly to stop moving.
如图2至图5所示，所述器械本体10内设有齿条102，所述齿条102可在所述击发把手30的作用下，在所述外科手术器械的近端朝远端方向移动。As shown in FIG. 2 to FIG. 5, the instrument body 10 is provided with a rack 102. The rack 102 can be oriented at the proximal end of the surgical instrument under the action of the firing handle 30. mobile.
所述外科手术器械还包括一旋圈作用件104。The surgical instrument also includes a coiling action member 104.
参图2、图3，在所述外科手术器械处于初始状态下，所述旋圈20被设置为允许绕其轴线转动状态，所述齿条102与所述旋圈作用件104接触，并给所述旋圈作用件104施加一朝向所述外科手术器械近端的作用力；此时，所述旋圈作用件104可与所述旋圈内壁面202之间设有间隙，以保证所述旋圈20可绕其轴线转动，当然，所述旋圈作用件104也可与所述旋圈内壁面202轻微接触，但并不会影响所述旋圈20绕其轴线转动，仅是转动所需要的作用力略大于所述旋圈作用件104与所述旋圈内壁面之间设有间隙的情况。Referring to Figures 2 and 3, in the initial state of the surgical instrument, the coil 20 is arranged to allow rotation about its axis, the rack 102 is in contact with the coil action member 104, and The loop action member 104 applies a force toward the proximal end of the surgical instrument; at this time, the loop action member 104 can be provided with a gap between the inner wall surface 202 of the coil to ensure the The coil 20 is rotatable about its axis. Of course, the coil action member 104 can also be in slight contact with the inner wall surface 202 of the coil, but does not affect the rotation of the coil 20 about its axis. The required force is slightly larger than the case where a gap is provided between the coil acting member 104 and the inner wall surface of the coil.
进一步地，所述齿条102的远端设有第一抵触面1022，所述旋圈作用件104的近端设有第二抵触面1042，在所述外科手术器械处于初始状态下，所述第一抵触面1022和 所述第二抵触面1042相抵触。Further, the distal end of the rack 102 is provided with a first abutting surface 1022, and the proximal end of the rotating ring member 104 is provided with a second abutting surface 1042. When the surgical instrument is in an initial state, the First abutting surface 1022 and The second abutting surface 1042 is in conflict.
其中，所述第一抵触面1022朝向于所述外科手术器械的近端设置，所述第二抵触面1042朝向于所述外科手术器械的远端设置。Wherein the first abutment surface 1022 is disposed toward a proximal end of the surgical instrument, and the second abutment surface 1042 is disposed toward a distal end of the surgical instrument.
所述第一抵触面1022和所述第二抵触面1042平行，且所述第一抵触面1022和所述第二抵触面1042均与所述旋圈20的轴线垂直。The first abutting surface 1022 and the second abutting surface 1042 are parallel, and the first abutting surface 1022 and the second abutting surface 1042 are both perpendicular to an axis of the coil 20 .
参图4、图5，在所述外科手术器械处于闭合状态及击发状态下，所述齿条102与所述旋圈作用件104分离，且所述旋圈作用件104接触所述旋圈内壁面202，并至少在所述旋圈20的径向上对所述旋圈20施加一张紧力。Referring to FIG. 4 and FIG. 5, in the closed state and the fired state of the surgical instrument, the rack 102 is separated from the coil acting member 104, and the rotating ring acting member 104 contacts the rotating coil. The wall 202 and a tightening force are applied to the coil 20 at least in the radial direction of the coil 20.
所述张紧力可保持所述旋圈2不能顺利的绕其轴线转动，或者是相对于初始状态，需要较大的外力作用，以克服所述旋圈20和旋圈作用件104之间的摩擦力才能使其转动，可以理解的是，这里的张紧力至少到达误操作时不能转动所述旋圈即可。The tensioning force can keep the rotating ring 2 from rotating smoothly about its axis, or requires a large external force relative to the initial state to overcome the between the rotating ring 20 and the rotating ring acting member 104. Friction can make it rotate. It can be understood that the tension here can not rotate the coil at least when it is mishandled.
继续参图2至图5，在所述器械本体10内还设有配合所述旋圈作用件104的弹性件106，在本实施方式中，所述弹性件106为压簧。Referring to FIG. 2 to FIG. 5, an elastic member 106 is also disposed in the instrument body 10 to engage the rotating ring acting member 104. In the present embodiment, the elastic member 106 is a compression spring.
所述器械本体10内设有朝向所述外科手术器械远端的第三抵触面108，所述旋圈作用件104设有朝向所述外科手术器械近端的第四抵触面1044，所述弹性件106夹持于所述第三抵触面108和第四抵触面1044之间。The instrument body 10 is provided with a third abutting surface 108 facing the distal end of the surgical instrument, and the rotating ring acting member 104 is provided with a fourth abutting surface 1044 facing the proximal end of the surgical instrument, the elasticity The piece 106 is clamped between the third abutting surface 108 and the fourth abutting surface 1044.
所述第三抵触面108和所述第四抵触面1044平行，且所述第三抵触面108和所述第四抵触面1044均与所述旋圈20的轴线垂直。The third abutting surface 108 and the fourth abutting surface 1044 are parallel, and the third abutting surface 108 and the fourth abutting surface 1044 are both perpendicular to an axis of the coil 20 .
在所述外科手术器械处于初始状态下，所述弹性件106呈压缩状态，其对所述旋圈作用件104始终施加一朝向所述外科手术器械远端的作用力。In the initial state of the surgical instrument, the resilient member 106 is in a compressed state that applies a force to the rotating ring member 104 toward the distal end of the surgical instrument.
在所述外科手术器械处于闭合状态及击发状态下，所述弹性件106仍保持压缩状态，以便于该弹性件106保持在所述第三抵触面108和第四抵触面1044之间并始终给所述第四抵触面1044一向远端的作用力。The elastic member 106 remains in a compressed state when the surgical instrument is in the closed state and the fired state, so that the elastic member 106 is held between the third abutting surface 108 and the fourth abutting surface 1044 and is always given The fourth abutting surface 1044 is a distal force.
进一步地，所述旋圈作用件104在所述旋圈20径向上延伸设有至少两个作用部1046、1048，所述器械壳体10设有配合所述作用部1046、1048的限位孔110、112，所述作用部1046、1048可在所述限位孔110、112中移动，并在所述外科手术器械处于闭合状态及击发状态下，在所述旋圈20径向上穿过所述限位孔110、112，与所述旋圈20的内壁面202相抵触。Further, the ring-shaped action member 104 has at least two acting portions 1046 and 1048 extending radially from the rotating ring 20, and the instrument housing 10 is provided with a limiting hole for engaging the acting portions 1046 and 1048. 110, 112, the action portion 1046, 1048 is movable in the limiting hole 110, 112, and passes through the radial direction of the coil 20 in the closed state and the fired state of the surgical instrument The limiting holes 110, 112 are in contact with the inner wall surface 202 of the coil 20.
进一步地，所述两个作用部1046、1048可设置为延伸方向相反。Further, the two acting portions 1046, 1048 may be disposed to extend in opposite directions.
在本实施方式中，在所述外科手术器械处于初始状态下，所述作用部1046、1048不穿过所述限位孔110、112，所述作用部1046、1048与所述旋圈内壁面202的接触面设置为与所述限位孔110、112的外壁面平齐。 In the present embodiment, when the surgical instrument is in an initial state, the acting portions 1046, 1048 do not pass through the limiting holes 110, 112, the acting portions 1046, 1048 and the inner wall of the rotating ring The contact faces of 202 are disposed flush with the outer wall faces of the stop holes 110, 112.
进一步地，所述旋圈作用件104的远端端面与所述限位孔110、112朝向所述外科手术器械近端的端面平行，所述旋圈作用件104的近端端面与所述限位孔110、112朝向所述外科手术器械远端的端面平行。Further, the distal end surface of the rotating ring member 104 is parallel to the end surface of the limiting hole 110, 112 toward the proximal end of the surgical instrument, and the proximal end surface of the rotating ring action member 104 and the limit end The bit holes 110, 112 are parallel toward the end face of the distal end of the surgical instrument.
进一步地，所述作用部1046、1048与所述旋圈内壁面202的接触面被设置为所述接触面的各部分同时与所述旋圈内壁面202接触或分离。如图2至图5的示例中，所述旋圈内壁面202呈锥形，所述作用部的1046、1048从其近端至远端的延伸长度逐渐减小，以形成的接触面为配合所述锥形的斜面。Further, a contact surface of the action portion 1046, 1048 with the inner wall surface 202 of the coil is disposed such that each portion of the contact surface simultaneously contacts or separates from the inner wall surface 202 of the coil. In the example of FIGS. 2 to 5, the inner wall surface 202 of the coil is tapered, and the extending length of the acting portion 1046, 1048 from the proximal end to the distal end thereof is gradually reduced to form a contact surface for cooperation. The tapered bevel.
进一步地，所述器械本体10内还设有一齿条阻挡块114，所述齿条102上设有与所述齿条阻挡块114配合的止挡块1024。Further, a rack blocking block 114 is further disposed in the instrument body 10, and the rack 102 is provided with a stop block 1024 that cooperates with the rack blocking block 114.
在所述外科手术器械处于初始状态时，所述止挡块1024位于所述齿条阻挡块114的近端，并限制所述齿条102向所述外科手术器械的远端移动；在所述外科手术器械的闭合过程中，所述齿条102向远端运动，所述止挡块1024越过所述齿条阻挡块114；在所述外科手术器械处于闭合击发状态下，所述止挡块1024位于所述齿条阻挡块114的远端，并限制所述齿条向所述外科手术器械的近端移动。下面将结合本实施方式中的外科手术器械的使用过程，说明本实施方式的技术方案，以便容易理解。When the surgical instrument is in an initial state, the stop block 1024 is located at a proximal end of the rack block 114 and restricts movement of the rack 102 toward a distal end of the surgical instrument; During the closing of the surgical instrument, the rack 102 moves distally, the stop block 1024 over the rack blocking block 114; the stop block is in the closed firing state of the surgical instrument 1024 is located at the distal end of the rack block 114 and limits movement of the rack toward the proximal end of the surgical instrument. The technical solution of the present embodiment will be described below in conjunction with the use procedure of the surgical instrument in the present embodiment, so as to be easily understood.
在所述外科手术器械处于初始状态下，所述齿条102因受到所述齿条阻挡块114的限制，不能向所述外科手术器械的远端移动。此时，所述齿条102的第一抵触面1022与所述旋圈作用件104的第二抵触面1042接触，所述旋圈作用件104与旋圈内壁面202之间设有间隙，或如上所述的轻微接触，所述弹性件106处于被压缩状态。这样，操作者可顺利的旋转所述旋圈，以调整钉仓组件的方向。In the initial state of the surgical instrument, the rack 102 is incapable of moving toward the distal end of the surgical instrument due to the restriction of the rack blocking block 114. At this time, the first abutting surface 1022 of the rack 102 is in contact with the second abutting surface 1042 of the rotating ring action member 104, and a gap is formed between the rotating ring acting member 104 and the inner wall surface 202 of the rotating ring, or The elastic member 106 is in a compressed state with a slight contact as described above. In this way, the operator can smoothly rotate the coil to adjust the orientation of the cartridge assembly.
当钉仓组件的方向调整完毕后，操作击发把手30，以闭合钉仓组件的钉仓和钉砧，此时，所述齿条102向远端运动，所述止挡块1024越过所述齿条阻挡块114，并位于所述齿条阻挡块114的远端。同时，所述齿条102的远端设有的第一抵触面1022也向远端运动，由于弹性件106始终处于压缩的状态，在弹性件106的作用，即可推动所述旋圈作用件104朝向所述外科手术器械的远端移动，直至，所述旋圈作用件104的作用部1046、1048穿出所述限位孔110、112，向所述旋圈内壁面202施加张紧力。这样，操作者即可在闭合状态和击发状态时不能或不易使所述旋圈20绕其轴线旋转，紧固了所述旋圈20在其圆周方向上的相对位置，防止旋圈20在所述外科手术器械闭合和击发状态下的误转动，避免伤害人体组织，减少手术风险。After the orientation of the cartridge assembly is adjusted, the firing handle 30 is operated to close the staple cartridge and the anvil of the cartridge assembly. At this time, the rack 102 moves distally, and the stopper 1024 passes over the tooth. The strip blocks 114 and is located at the distal end of the rack blocking block 114. At the same time, the first abutting surface 1022 provided at the distal end of the rack 102 is also moved distally. Since the elastic member 106 is always in a compressed state, the action of the elastic member 106 can push the rotating ring acting member. 104 is moved toward the distal end of the surgical instrument until the action portions 1046, 1048 of the coil action member 104 pass out of the limit holes 110, 112 to apply tension to the inner wall surface 202 of the coil . In this way, the operator can rotate or rotate the coil 20 about its axis in the closed state and the fired state, and the relative position of the coil 20 in the circumferential direction thereof is tightened to prevent the coil 20 from being in the position. The surgical instrument is closed and the wrong rotation in the state of firing, to avoid harming human tissue and reducing the risk of surgery.
应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员 可以理解的其他实施方式。It should be understood that, although the description is described in terms of embodiments, the embodiments are not intended to be construed as a single. The technical solutions in the embodiments may also be combined as appropriate to form a person skilled in the art. Other embodiments that can be understood.
上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说明，它们并非用以限制本发明的保护范围，凡未脱离本发明技艺精神所作的等效实施方式或变更均应包含在本发明的保护范围之内。 The series of detailed descriptions set forth above are merely illustrative of the possible embodiments of the present invention, and are not intended to limit the scope of the present invention. Changes are intended to be included within the scope of the invention.

Claims (10)

  1. 一种外科手术器械，包括器械本体、与所述器械本体配接的旋圈，枢轴连接所述器械本体的击发把手；及与所述击发把手配合的齿条，所述齿条可在所述击发把手的作用下在所述外科手术器械的近端朝远端方向移动，其特征在于，A surgical instrument includes an instrument body, a rotating ring coupled to the instrument body, a firing handle pivotally coupled to the instrument body, and a rack engaged with the firing handle, the rack being Moving in the distal direction of the proximal end of the surgical instrument under the action of a firing handle, characterized in that
    所述外科手术器械还包括一旋圈作用件；且The surgical instrument further includes a coil acting member;
    在所述外科手术器械处于初始状态下，所述旋圈被设置为允许绕其轴线转动状态，所述齿条与所述旋圈作用件接触，并给所述旋圈作用件施加一朝向所述外科手术器械近端的作用力；When the surgical instrument is in an initial state, the coil is arranged to allow a rotation about its axis, the rack is in contact with the coil action member, and an orientation is applied to the coil action member The force of the proximal end of the surgical instrument;
    在所述外科手术器械处于闭合状态及击发状态下，所述齿条与所述旋圈作用件分离，且所述旋圈作用件接触所述旋圈内壁面，并至少在所述旋圈的径向上对所述旋圈施加一张紧力。The rack is separated from the coil acting member when the surgical instrument is in a closed state and a fired state, and the coil acting member contacts the inner wall surface of the coil, and at least in the coil A tightening force is applied to the coil in the radial direction.
  2. 根据权利要求1所述的外科手术器械，其特征在于，在所述外科手术器械处于初始状态下，所述旋圈作用件与所述旋圈内壁面之间设有间隙。The surgical instrument according to claim 1, wherein a gap is provided between the coil acting member and the inner wall surface of the coil when the surgical instrument is in an initial state.
  3. 根据权利要求1所述的外科手术器械，其特征在于，在所述器械本体内还设有配合所述旋圈作用件的弹性件，在所述外科手术器械处于初始状态下，所述弹性件对所述旋圈作用件始终施加一朝向所述外科手术器械远端的作用力。The surgical instrument according to claim 1, wherein an elastic member that cooperates with the rotating ring acting member is further disposed in the instrument body, and the elastic member is in an initial state when the surgical instrument is in an initial state. A force is applied to the coil action member toward the distal end of the surgical instrument.
  4. 根据权利要求1所述的外科手术器械，其特征在于，所述齿条的远端设有第一抵触面，所述旋圈作用件的近端设有第二抵触面，在所述外科手术器械处于初始状态下，所述第一抵触面和所述第二抵触面相抵触。The surgical instrument according to claim 1, wherein a distal end of the rack is provided with a first abutting surface, and a proximal end of the rotating ring member is provided with a second abutting surface, in the surgical operation When the instrument is in an initial state, the first abutting surface and the second abutting surface are in conflict.
  5. 根据权利要求3所述的外科手术器械，其特征在于，所述器械本体内设有朝向所述外科手术器械远端的第三抵触面，所述旋圈作用件设有朝向所述外科手术器械近端的第四抵触面，所述弹性件夹持于所述第三抵触面和第四抵触面之间。The surgical instrument according to claim 3, wherein said instrument body is provided with a third abutting surface facing the distal end of said surgical instrument, said coil acting member being provided toward said surgical instrument The fourth abutting surface of the proximal end is sandwiched between the third abutting surface and the fourth abutting surface.
  6. 根据权利要求1所述的外科手术器械，其特征在于，所述旋圈作用件在所述旋圈径向上延伸设有至少两个作用部，所述器械壳体设有配合所述作用部的限位孔，所述作用部可在所述限位孔中移动，并在所述外科手术器械处于闭合状态及击发状态下，在所述旋圈径向上穿过所述限位孔，与所述旋圈的内壁面相抵触。The surgical instrument according to claim 1, wherein the rotating ring member has at least two acting portions extending radially from the rotating ring, and the instrument housing is provided with the acting portion. a limiting hole, wherein the acting portion is movable in the limiting hole and passes through the limiting hole in a radial direction of the rotating ring when the surgical instrument is in a closed state and a fired state, The inner wall surface of the coil is in conflict.
  7. 根据权利要求6所述的外科手术器械，其特征在于，所述旋圈作用件的远端端面与所述限位孔朝向所述外科手术器械近端的端面平行，所述旋圈作用件的近端端面与所述限位孔朝向所述外科手术器械远端的端面平行。The surgical instrument according to claim 6, wherein a distal end surface of the rotating ring member is parallel to an end surface of the limiting hole toward a proximal end of the surgical instrument, the action of the rotating ring The proximal end face is parallel to the end face of the distal end of the surgical instrument.
  8. 根据权利要求6所述的外科手术器械，其特征在于，所述两个作用部的延伸方向相反。 The surgical instrument according to claim 6, wherein the two acting portions extend in opposite directions.
  9. 根据权利要求6所述的外科手术器械，其特征在于，所述作用部与所述旋圈内壁面的接触面被设置为所述接触面的各部分同时与所述旋圈内壁面接触或分离。The surgical instrument according to claim 6, wherein a contact surface of the acting portion with the inner wall surface of the coil is disposed such that portions of the contact surface simultaneously contact or separate from the inner wall surface of the coil .
  10. 根据权利要求1所述的外科手术器械，其特征在于，所述器械本体内还设有一齿条阻挡块，所述齿条上设有与所述齿条阻挡块配合的止挡块，在所述外科手术器械处于初始状态时，所述齿条阻挡块位于所述止挡块的远端，并限制所述齿条向所述外科手术器械的远端移动；在所述外科手术器械处于闭合状态时，所述齿条阻挡块位于所述止挡块的近端，并限制所述齿条向所述外科手术器械的近端移动。 The surgical instrument according to claim 1, wherein the instrument body further comprises a rack blocking block, and the rack is provided with a stop block for engaging with the rack blocking block. When the surgical instrument is in an initial state, the rack blocking block is located at a distal end of the stop block and restricts movement of the rack to a distal end of the surgical instrument; the surgical instrument is closed In the state, the rack blocking block is located at a proximal end of the stop block and limits movement of the rack to a proximal end of the surgical instrument.
PCT/CN2015/098179 2014-12-30 2015-12-22 Surgical operating instrument WO2016107448A1 (en)

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CN104490440B (en) 2016-09-14

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