CN110547840B - Knob assembly and surgical cutting anastomat thereof - Google Patents
Knob assembly and surgical cutting anastomat thereof Download PDFInfo
- Publication number
- CN110547840B CN110547840B CN201810562098.8A CN201810562098A CN110547840B CN 110547840 B CN110547840 B CN 110547840B CN 201810562098 A CN201810562098 A CN 201810562098A CN 110547840 B CN110547840 B CN 110547840B
- Authority
- CN
- China
- Prior art keywords
- knob
- combined
- combining
- surgical cutting
- concave part
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- 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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00353—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery one mechanical instrument performing multiple functions, e.g. cutting and grasping
Abstract
The invention discloses a knob assembly and a surgical cutting anastomat thereof, wherein the knob assembly comprises: the first knob part is provided with a first body, the first far end of the first body is provided with a first rotating structure, and the first near end of the first body part is provided with a second rotating structure; the second knob part is provided with a second body, the second far end of the second body is provided with a third rotating structure, and the second far end of the second body is provided with a fourth rotating structure; the second knob part is detachably combined on the first knob part, the third rotating structure and the first rotating structure are combined into a first rotating part, the fourth rotating structure and the second rotating structure are combined into a second rotating part, the first rotating part is combined on an outer sleeve of the surgical cutting anastomat, and the second rotating part is combined on a shell of an operation end of the surgical cutting anastomat. The knob component omits a pull rod positioning seat, reduces the assembly procedures and avoids the problem of low assembly accuracy; meanwhile, the mold opening quantity is reduced, and the production and manufacturing cost is further reduced.
Description
Technical Field
The invention relates to a surgical operation device, in particular to a knob assembly and a surgical cutting anastomat thereof, and belongs to the field of medical instruments.
Background
Surgical cutting staplers have been widely used for suturing wounds, suturing and cutting internal tissues, and cutting staplers suitable for endoscopic surgery have also been developed. Endoscopic surgery, also known as laparoscopic surgery, is to replace the direct vision with the naked eye with an electronic mirror image, replace fingers with slender instruments, and strive to complete the observation, diagnosis, cutting, suturing and other treatments of lesions in vivo under the conditions of minimum incision path, minimum tissue damage and the lightest stress response of the body.
The cutting anastomat for the endoscopic surgery generally comprises an operation end and an operation head detachably arranged at the far end of the operation end, wherein the operation end comprises a positioning handle and a firing handle, and the operation head comprises a sleeve assembly and a jaw assembly arranged at the far end of the sleeve assembly; the jaw assembly is a part for implementing cutting and suturing actions and comprises a nail bin assembly, a nail anvil assembly and a cutter assembly, an operating head of the cutting anastomat can penetrate through a small incision on a body through a puncture outfit to approach a surgical site to implement surgery, and the nail bin assembly and the cutter assembly are pushed under the driving of a firing handle to complete the cutting and anastomosis surgery. Typically, the jaw assembly is mounted to the distal end of the sleeve assembly by an angular adjustment mechanism that allows the surgeon to remotely manipulate the jaw assembly to oscillate clockwise or counterclockwise relative to the sleeve assembly.
At present, in a cutting anastomat used in an existing endoscopic surgical operation, a jaw assembly swings clockwise or anticlockwise relative to a sleeve assembly, and the sleeve assembly rotates generally through a knob assembly sleeved on the outer side of the sleeve assembly.
FIG. 1 is an exploded view of a knob assembly in a prior art surgical cutting stapler. As shown in fig. 1, the knob assembly includes a knob 10, a first positioning seat 20, a second positioning seat 30, a first pull rod positioning seat 40 and a second pull rod positioning seat 50, wherein the first pull rod positioning seat 40 and the second pull rod positioning seat 50 are assembled to be accommodated in an annular accommodating cavity 11 at a distal end of the knob 10, the first positioning seat 20 and the second positioning seat 30 are combined and then partially sleeved on the sleeve assembly, and the first positioning seat 20 and the second positioning seat 30 simultaneously cover an outer side of the annular accommodating cavity 11 at the distal end of the knob 10. The knob assembly has more than two assembling part design modes and has the following defects: 1) the assembling parts need to be assembled respectively, so that the assembling process is increased; 2) because the sizes of the first pull rod positioning seat 40, the second pull rod positioning seat 50 and the annular containing cavity 11 in actual production and manufacturing are small, difficulty is brought to assembly operation to a certain extent, and the assembly accuracy is further influenced; 3) in consideration of the manufacturing cost, the need to separately open the mold for the multiple assembling parts also causes a significant increase in the manufacturing cost.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a novel knob assembly, which solves the problems of difficult assembly and high production cost caused by a large number of knob assemblies. The invention is realized by the following technical scheme:
the present invention provides a knob assembly for a surgical cutting stapler, the knob assembly comprising: a first knob portion having a first body, a first distal end of the first body having a first rotational structure, a first proximal end of the first body having a second rotational structure; the second knob part is provided with a second body, the second far end of the second body is provided with a third rotating structure, and the second far end of the second body is provided with a fourth rotating structure; the second knob part is detachably combined on the first knob part, the third rotating structure and the first rotating structure are combined into a first rotating part, the fourth rotating structure and the second rotating structure are combined into a second rotating part, the first rotating part is combined on an outer sleeve of the surgical cutting anastomat, and the second rotating part is combined on a shell of an operation end of the surgical cutting anastomat.
As an optional technical solution, the first rotation structure, the second rotation structure, the third rotation structure and the fourth rotation structure are arc-shaped concave portions respectively.
Optionally, the first knob portion and the second knob portion are combined to form a cone structure, a proximal end of the cone structure is combined with a housing of the operating end of the surgical cutting stapler, and a distal end of the cone structure is combined with an outer sleeve of the sleeve assembly of the surgical cutting stapler.
As an optional technical solution, a first concave portion and a second concave portion are disposed on an inner side of the first body, the first concave portion is located between the first rotating structure and the second concave portion, and the first concave portion and the second concave portion are integrally formed with the first body.
As an optional technical solution, the first concave part has a first combining surface and a second combining surface which are opposite, and the second concave part has a third combining surface and a fourth combining surface which are opposite; the surgical cutting stapler includes a tool holder having first and third spaced apart planar surfaces on a first side of a proximal end thereof and second and fourth spaced apart planar surfaces on a second side of the proximal end thereof; wherein, when the first knob part is assembled to the surgical cutting anastomat, the first combining surface is combined on the first plane; the second combining surface is combined on the second plane; the third combining surface is combined on the third plane; the fourth combining surface is combined on the fourth plane.
As an optional technical solution, the second concave portion has a first abutting surface and a second abutting surface, the first abutting surface and the second abutting surface respectively face the second rotating structure, the first abutting surface is adjacent to the third combining surface and perpendicular to the third combining surface, and the second abutting surface is adjacent to the fourth combining surface and perpendicular to the fourth combining surface.
As an optional technical solution, the second concave portion has a first combining hole, the first combining hole is disposed on a fifth combining surface, and the fifth combining surface is adjacent to the fourth combining surface and the second abutting surface respectively.
As an optional technical solution, a third concave portion and a fourth concave portion are disposed inside the second body, the third concave portion is located between the third rotating structure and the fourth concave portion, and the third concave portion and the fourth concave portion are integrally formed with the second body.
As an alternative technical solution, the third concave part has a sixth combining surface and a seventh combining surface which are opposite, and the fourth concave part has an eighth combining surface and a ninth combining surface which are opposite; the surgical cutting stapler includes a tool holder having first and third spaced apart planar surfaces on a first side of a proximal end thereof and second and fourth spaced apart planar surfaces on a second side of the proximal end thereof; wherein, when the second knob part is assembled to the surgical cutting anastomat, the sixth junction surface is combined with the first plane; the seventh combining surface is combined on the second plane; the eighth bonding surface is bonded to the third plane; the ninth combining surface is combined on the fourth plane.
As an optional technical solution, the fourth concave portion has a third abutting surface and a fourth abutting surface, the third abutting surface and the fourth abutting surface respectively face the fourth rotating structure, the third abutting surface is adjacent to the eighth combining surface and perpendicular to the eighth combining surface, and the fourth abutting surface is adjacent to the ninth combining surface and perpendicular to the ninth combining surface.
As an optional technical solution, the fourth concave portion has a second combining hole, the second combining hole is disposed on a tenth combining surface, and the tenth combining surface is adjacent to the ninth combining surface and the fourth abutting surface, respectively.
As an optional technical solution, the first knob portion further includes a plurality of first engaging portions protruding from the first edge of the first body, and a plurality of second engaging portions recessed from the second edge of the first body; the second knob part also comprises a plurality of third clamping parts which are inwards concave from the third edge of the second body; and a plurality of fourth clamping parts protruding from the fourth edge of the second body; the first clamping parts are detachably combined with the third clamping parts, and the second clamping parts are detachably combined with the fourth clamping parts, so that the first knob part is detachably combined with the second knob part.
The invention also provides a surgical cutting anastomat, and the knob assembly is the knob assembly.
Compared with the prior art, the invention has the advantages that the first knob part and the second knob part are respectively provided with the plurality of concave parts to position the tool rest structure, and the concave parts are simultaneously provided with the combination holes to position the knob pin and the pull rod; 1) the positioning functions (the first concave part and the second concave part) of the tool rest, the pull rod and the knob pin are integrated on the knob part, so that the pull rod positioning seat which is originally and independently arranged is omitted, the assembly process is reduced, and the problem of low assembly accuracy is avoided; 2) the first knob part and the second knob part only need to be opened, so that the number of opened dies is reduced, and the production and manufacturing cost is further reduced.
Drawings
FIG. 1 is an exploded view of a knob assembly of a prior art surgical cutting stapler;
FIG. 2 is an exploded view of the knob assembly of the surgical cutting stapler of the present invention;
FIG. 3 is a schematic view of a first knob portion of the present invention;
FIG. 4 is a schematic view of a second knob portion of the present invention;
FIG. 5 is a schematic view of the elastic member of the knob assembly shown in FIG. 2 after being sleeved on the outer sleeve;
FIG. 6 is a schematic view of the elastic member of the knob assembly of FIG. 2 shown in another view after being sleeved on the outer sleeve;
FIG. 7 is a schematic view of the first knob portion assembled to the outer sleeve according to the present invention.
FIG. 8 is a schematic structural view of the second knob portion of the present invention assembled to the outer sleeve.
Fig. 9A is an enlarged schematic view of the region a in fig. 3.
Fig. 9B is an enlarged schematic view of the region B in fig. 4.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
FIG. 2 is an exploded view of the knob assembly of the surgical cutting stapler of the present invention; FIG. 3 is a schematic view of a first knob portion of the present invention; FIG. 4 is a schematic view of a second knob portion of the present invention; FIG. 9A is an enlarged schematic view of region A of FIG. 3; fig. 9B is an enlarged schematic view of the region B in fig. 4.
As shown in fig. 2-4, the surgical cutting stapler 100 includes an operating end and an operating head, the operating head includes a cannula assembly and a jaw assembly disposed at a distal end of the cannula assembly. In the present invention, for convenience of explanation, the end of the surgical cutting stapler 100 closer to the operator is defined as a proximal end, and the end farther from the operator is defined as a distal end.
The knob assembly comprises a first knob portion 110 and a second knob portion 120, the first knob portion 110 and the second knob portion 120 are combined to form a substantially cone-shaped structure, the proximal end of the cone-shaped structure is combined with the housing 200 of the operation end, the distal end of the cone-shaped structure is combined with the outer sleeve 150 of the cannula assembly, the outer sleeve 150 is located inside the cone-shaped structure, wherein the inner diameter of the opening of the proximal end of the cone-shaped structure is larger than the inner diameter of the distal end of the cone-shaped structure, and the inner diameter of the distal end of the cone-shaped structure is larger than or equal to the outer diameter of the outer sleeve 150.
As shown in fig. 3 and 9A, the first knob portion 110 includes a first body 118, a first distal end 117a of the first body 118 has a first rotation structure 111, a first proximal end 117b of the first body 118 has a second rotation structure 201, and the first rotation structure 111 and the second rotation structure 201 are circular arc-shaped recesses respectively. The first knob portion 110 further includes a first recess 112 and a second recess 113, the first recess 112 is located between the first rotation structure 111 and the second recess 113, preferably, the first recess 112 and the second recess 113 are respectively disposed adjacent to the first distal end 117a of the first knob portion 110, the first recess 112 is closer to the first distal end 117a of the first knob portion 110 than the second recess 113; the first concave portion 112 and the second concave portion 113 are disposed inside the first body 118, the first concave portion 112 has a first combining surface 1121 and a second combining surface 1122 opposite to each other, the second concave portion 113 has a third combining surface 1131 and a fourth combining surface 1132 opposite to each other, and preferably, the first combining surface 1121 to the fourth combining surface 1132 are planar surfaces respectively. In addition, since the rotation component further includes an elastic member 130 such as a spring, the second recess 113 further includes a first abutting surface 1133 and a second abutting surface 1134, wherein the extending direction of the outer sleeve 150 is defined as a first direction F1, the extending directions of the first abutting surface 1133 and the second abutting surface 1134 are perpendicular to the first direction F1, the first abutting surface 1133 is formed by extending from a side of the third combining surface 1131 adjacent to the first proximal end 117b toward a direction perpendicular to the first direction F1, the second abutting surface 1134 is formed by extending from a side of the fourth combining surface 1132 adjacent to the first proximal end 117b toward a direction perpendicular to the first direction F1, and the extending directions of the third combining surface 1131 and the fourth combining surface 1132 are respectively parallel to the first direction F1. In other words, the first abutting surface 1133 and the second abutting surface 1134 of the second recess 113 face the second rotating structure 201, respectively, the first abutting surface 1133 is adjacent to the third combining surface 1131 and perpendicular to the third combining surface 1131, and the second abutting surface 1134 is adjacent to the fourth combining surface 1132 and perpendicular to the fourth combining surface 1132. Further, the second recess 113 further includes a fifth combining surface, the fifth combining surface is provided with a first combining hole 119, the extending direction of the fifth combining surface is perpendicular to the equal direction F1, and the fifth combining surface is adjacent to the fourth combining surface 1132 and the second abutting surface 1134 respectively; the first coupling hole 119 is used to mount an end of the knob pin 140 (shown in fig. 7).
The first knob portion 110 further includes a plurality of first engaging portions 114 protruding from a first edge of the first body 118, and a plurality of second engaging portions 115 recessed from a second edge of the first body 118, wherein when the first knob portion 110 is combined with the outer sleeve 150, the first edge and the second edge are disposed on opposite sides of the outer sleeve 150.
As shown in fig. 4 and 9B, the second knob portion 120 and the first knob portion 110 have substantially similar structures, except that in order to satisfy the pair of the second knob portion 120 and the first knob portion 110, the second knob portion 120 further includes a plurality of third engaging portions 124 recessed from the third edge of the second body 128 and a plurality of fourth engaging portions 125 protruding from the fourth edge of the second body 128; after the second knob portion 120 is combined with the first knob portion 110, the third engaging portions 124 of the third edge are in one-to-one correspondence with the first engaging portions 114 of the first edge, and the fourth engaging portions 125 of the fourth edge are in one-to-one correspondence with the second engaging portions 115 of the second edge. In this embodiment, the first engaging portion 114 and the fourth engaging portion 125 are respectively a convex pillar structure, and the second engaging portion 115 and the third engaging portion 124 are respectively a concave structure adapted to the convex pillar structure, but not limited thereto. In other embodiments of the present invention, the first engaging portion 114 and the fourth engaging portion 125 are respectively a concave structure, and the second engaging portion 115 and the third engaging portion 124 are respectively a convex pillar structure adapted to the concave structure. It should be noted that, in the present invention, the first knob portion 110 and the second knob portion 120 are detachably coupled.
With reference to fig. 4, the second knob portion 120 includes a second body 128, a third rotation structure 121 is disposed at the second distal end 127a of the second body 128, a fourth rotation structure 202 is disposed at the second proximal end 127b of the second body 128, and the third rotation structure 121 and the fourth rotation structure 202 are circular arc-shaped recesses respectively. The second knob portion 120 further includes a third recess 122 and a fourth recess 123, the third recess 122 is located between the third rotating structure 121 and the fourth recess 123, preferably, the third recess 122 and the fourth recess 123 are respectively disposed adjacent to the second distal end 127a of the second knob portion 120, the third recess 122 is closer to the second distal end 127a of the second knob portion 120 than the fourth recess 123; the third recess 122 has a sixth engaging surface 1221 and a seventh engaging surface 1222 opposite to each other, the fourth recess 123 has an eighth engaging surface 1231 and a ninth engaging surface 1232 opposite to each other, and preferably, the sixth engaging surface 1221 to the ninth engaging surface 1232 are respectively a plane. In addition, since the rotation assembly further includes an elastic member 130 such as a spring, the fourth recess 123 further includes a third abutting surface 1233 and a fourth abutting surface 1234, wherein the extending direction of the outer sleeve 150 is defined as the first direction F1, the extending directions of the third abutting surface 1233 and the fourth abutting surface 1234 are perpendicular to the first direction F1, the third abutting surface 1233 is formed by extending from a side of the eighth combining surface 1231 adjacent to the second proximal end 127b toward a direction perpendicular to the first direction F1, the fourth abutting surface 1234 is formed by extending from a side of the ninth combining surface 1232 adjacent to the second proximal end 127b toward a direction perpendicular to the first direction F1, and the extending directions of the eighth combining surface 1231 and the ninth combining surface 1232 are respectively parallel to the first direction F1. In other words, the third abutting surface 1233 and the fourth abutting surface 1234 of the fourth recess 123 respectively face the fourth rotating structure 202, the third abutting surface 1233 is adjacent to the eighth combining surface 1231 and perpendicular to the eighth combining surface 1231, and the fourth abutting surface 1234 is adjacent to the ninth combining surface 1232 and perpendicular to the ninth combining surface 1232. Further, the fourth recess 123 further includes a tenth combination surface, the tenth combination surface is provided with a second combination hole 129, the extension direction of the tenth combination surface is perpendicular to the first direction F1, and the tenth combination surface is adjacent to the ninth combination surface 1232 and the fourth abutting surface 1234 respectively; the second coupling hole 129 is for mounting the other end of the knob pin 140 (shown in fig. 8).
To provide a more accurate understanding of the manner in which the knob assembly of the present invention may be incorporated into a surgical cutting stapler, reference is now made to FIGS. 5-7 and the following discussion.
Referring to fig. 3, 5 and 7, the elastic member 130 is sleeved on the outer sleeve 150; assembling the first knob portion 110 to the surgical cutting stapler 100 such that the first rotary structure 111 is coupled to the outer sleeve 150 and the second rotary structure 201 is coupled to the ring structure 210 at the distal end of the housing 200; the proximal end of the outer sleeve 150 has two opposite openings, the proximal end of the blade holder 160 is exposed from the two openings, the proximal end of the blade holder 160 includes a first plane 161 and a second plane 162 which are opposite to each other, the first combining surface 1121 of the first concave portion 112 is combined with the first plane 161 of the blade holder 160, and the second combining surface 1122 is combined with the second plane 162 of the blade holder 160; the proximal end of the blade holder 160 further includes a third plane 163 and a fourth plane 164 opposite to each other, the third plane 163 is parallel to and spaced apart from the first plane 161, the fourth plane 164 is parallel to and spaced apart from the second plane 162, a third engaging surface 1131 of the second recess 113 is engaged with the third plane 163, and a fourth engaging surface 1132 of the second recess 113 is engaged with the fourth plane 164; the elastic element 130 is limited between the second recess 113 and the cover 180, the elastic element 130 is compressed to a first compressed state 130', one end of the elastic element 130 abuts against the first abutting surface 1133 and the second abutting surface 1134 at the same time, and the other end of the elastic element 130 abuts against the cover 180; the rotation pin 140 is assembled into the first coupling hole 119, and the rotation pin 140 passes through a hole portion of the proximal end of the pull rod 190 into the first coupling hole 119, wherein the hole portion of the proximal end of the pull rod 190 protrudes from the fourth plane 164 of the proximal end of the tool holder 160 and outside the fourth plane 164. Preferably, the knob pin 140 is pre-assembled into the first coupling hole 119 of the first knob portion 110, and then the first knob portion 110 is assembled to the surgical cutting stapler 100, such that the knob pin 140 first enters the hole portion of the proximal end of the pull rod 190, and then the elastic member 130 is adjusted to be received between the cover 180 and the second recess 112, and the pull rod 190 is substantially disposed inside the outer sleeve 150 and extends in a direction parallel to the extending direction of the outer sleeve 150.
In this embodiment, the spacing between the first plane 161 and the third plane 163 means that a spacing portion is disposed between the first plane 161 and the third plane 163, and the spacing portion makes the first plane 161 and the third plane 163 have discontinuous planar shapes; similarly, the interval between the second plane 162 and the fourth plane 164 means that another interval portion is provided between the second plane 162 and the fourth plane 164, and the another interval portion makes the second plane 162 and the fourth plane 164 have a discontinuous planar shape.
Referring to fig. 4, 7 and 8, the second knob portion 120 is assembled to the surgical cutting stapler 100 shown in fig. 7, wherein the first knob portion 110 is omitted from fig. 8 for the sake of simplicity of illustration. The third engaging portions 124 and the fourth engaging portions 125 of the second knob portion 120 are respectively coupled to the first engaging portions 114 and the second engaging portions 115 of the first knob portion 110, so that the second knob portion 120 is detachably coupled to the first knob portion 110 to form a cone structure (not shown).
The third rotating structure 121 of the second knob portion 120 is coupled to the outer sleeve 150, and the third rotating structure 121 and the first rotating structure 111 are combined to form a first rotating portion, that is, the first rotating portion is sleeved on the outer sleeve 150; the fourth rotating structure 202 of the second knob portion 120 is coupled to the ring structure 210 at the distal end of the housing 200, and the fourth rotating structure 202 and the second rotating structure 201 are combined to form a second rotating portion, that is, the second rotating portion is sleeved on the ring structure 210; a sixth engaging surface 1221 of the third recess 122 is engaged with the first plane 161, and a seventh engaging surface 1222 of the third recess 122 is engaged with the second plane 162; an eighth bonding surface 1231 of the fourth recess 123 is bonded to the third plane 163, and a ninth bonding surface 1232 of the fourth recess 123 is bonded to the fourth plane 164; the knob pin 140 enters the second coupling hole 129 on the fourth recess 123; the cone structure of the first knob portion 110 and the second knob portion 120 can smoothly rotate 360 ° in the circumferential direction relative to the ring structure 210 of the housing 200. In addition, since the first combining surfaces 1121 to 1132 and the sixth combining surfaces 1221 to 1232 are respectively planar structures, and the tool post 160 is correspondingly provided with the first plane 161 to the fourth plane 164 corresponding to the combining surfaces, the first knob portion 110 and the second knob portion 120 are respectively combined on the tool post 160 by the combination of the planes; the knob pin 140 is inserted into a hole portion at the front end of the pull rod 190, and both ends of the knob pin 140 enter the first combining hole 119 of the second recess 113 and the second combining hole 129 of the fourth recess 123, respectively.
As shown in fig. 2 to 4, the first proximal end 117b of the first knob portion 110 is provided with a plurality of first handle portions 116, and the plurality of first handle portions 116 protrude outward from the first body 118, respectively; the second proximal end 127b of the second knob portion 120 is provided with a plurality of second handle portions 126, and the plurality of second handle portions 126 protrude outward from the second body 128; the first handle portions 116 and the second handle portions 126 are uniformly distributed around the second rotating structure 201. In addition, the plurality of first handle portions 116 and the plurality of second handle portions 126 are provided with rough patterns, respectively, to prevent the operator from slipping when gripping the handle portions. In this embodiment, the rough pattern is, for example, a plurality of circular bump structures, but not limited thereto.
In this embodiment, when the user acts on the handle portion to move the handle portion toward the proximal end of the surgical cutting stapler 100, the pull rod 190 moves, such that the jaw assembly may swing clockwise or counterclockwise relative to the sleeve assembly; when the user acts on the handle portion to rotate along the center of the first rotation structure or the second rotation structure, the cannula assembly and the jaw assembly rotate along the ring structure 210 at the distal end of the housing 200, respectively.
The first recess 112 and the second recess 113 of the first knob portion 110 are integrally formed with the first body 118, for example, by injection molding; and the third recess 122 and the fourth recess 123 of the second knob portion 120 are integrally formed with the second body 128, for example, by injection molding. Preferably, after the first knob portion 110 and the second knob portion 120 are assembled, the first recess 112 and the second recess 113 respectively extend from the inner side of the first body 118 toward the second body 128; the third recess 122 and the fourth recess 123 respectively extend from the inner side of the second body 128 toward the first body 118, wherein the functions of the first recess 112, the second recess 113, the third recess 122 and the fourth recess 123 are similar to the functions of the first pull rod positioning seat 40 and the second pull rod positioning seat 50 in fig. 1, so that when the knob assembly is rotated, the sleeve assembly is driven to rotate.
The present invention also provides a surgical cutting stapler 100 including a knob assembly as described above.
According to the invention, the first knob part and the second knob part are provided with the plurality of concave parts, and the plane structures of the concave parts are combined with the plane structure of the tool rest, so that the first knob part and the second knob part are combined with the tool rest, and when the knob assembly rotates, the tool rest and the knob assembly rotate together. In addition, the concave portion of the knob body is provided with a coupling hole for positioning the knob pin coupled with the hole portion of the draw bar.
In summary, the first knob portion and the second knob portion are respectively provided with the plurality of concave portions to position the tool holder structure, and the concave portions are provided with the combination holes to position the knob pin and the pull rod, so that compared with the prior art, the knob assembly of the present invention has the following advantages; 1) the positioning functions (the first concave part and the second concave part) of the tool rest, the pull rod and the knob pin are integrated on the knob part, so that the pull rod positioning seat which is originally and independently arranged is omitted, the assembly process is reduced, and the problem of low assembly accuracy is avoided; 2) the first knob part and the second knob part only need to be opened, so that the number of opened dies is reduced, and the production and manufacturing cost is further reduced.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A knob assembly for a surgical cutting stapler, wherein; the knob assembly includes:
a first knob portion having a first body, a first distal end of the first body having a first rotational structure, a first proximal end of the first body having a second rotational structure; and
a second knob portion having a second body, a second distal end of the second body having a third rotational structure, the second distal end of the second body having a fourth rotational structure;
the second knob part is detachably combined on the first knob part, the third rotating structure and the first rotating structure are combined into a first rotating part, the fourth rotating structure and the second rotating structure are combined into a second rotating part, the first rotating part is combined on an outer sleeve of the surgical cutting anastomat, and the second rotating part is combined on a shell of an operating end of the surgical cutting anastomat;
a first concave part and a second concave part are arranged on the inner side of the first body, the first concave part is positioned between the first rotating structure and the second concave part, and the first concave part and the second concave part are integrally formed with the first body; the first concave part is provided with a first combining surface and a second combining surface which are opposite, and the second concave part is provided with a third combining surface and a fourth combining surface which are opposite; the surgical cutting stapler includes a tool holder having first and third spaced apart planar surfaces on a first side of a proximal end thereof and second and fourth spaced apart planar surfaces on a second side of the proximal end thereof; wherein, when the first knob part is assembled to the surgical cutting anastomat, the first combining surface is combined on the first plane; the second combining surface is combined on the second plane; the third combining surface is combined on the third plane; the fourth combining surface is combined on the fourth plane;
a third concave part and a fourth concave part are arranged on the inner side of the second body, the third concave part is positioned between the third rotating structure and the fourth concave part, and the third concave part and the fourth concave part are integrally formed with the second body;
the second concave part comprises a fifth joint surface and a first joint hole arranged on the fifth joint surface, and the fourth concave part comprises a tenth joint surface and a second joint hole arranged on the tenth joint surface; the knob assembly further comprises a knob pin, the surgical cutting stapler further comprises a pull rod, the rotation pin penetrates through a hole portion of the proximal end of the pull rod, the first combining hole is used for installing one end of the knob pin, and the second combining hole is used for installing the other end of the knob pin.
2. The knob assembly according to claim 1, wherein the first, second, third and fourth rotation structures are arc-shaped recesses, respectively.
3. The knob assembly according to claim 1, wherein the first knob portion and the second knob portion are coupled to form a cone structure, a proximal end of the cone structure is coupled to a housing of the operating end of the surgical cutting stapler, and a distal end of the cone structure is coupled to an outer sleeve of the sleeve assembly of the surgical cutting stapler.
4. The knob assembly according to claim 1, wherein the second recess has a first abutting surface and a second abutting surface, the first abutting surface and the second abutting surface respectively face the second rotary structure, the first abutting surface is adjacent to the third combining surface and perpendicular to the third combining surface, and the second abutting surface is adjacent to the fourth combining surface and perpendicular to the fourth combining surface.
5. The knob assembly according to claim 4, wherein the fifth engaging surface is adjacent to the fourth engaging surface and the second abutting surface, respectively.
6. The knob assembly according to claim 1, wherein the third recess has sixth and seventh opposing engaging surfaces, and the fourth recess has eighth and ninth opposing engaging surfaces; the surgical cutting stapler includes a tool holder having first and third spaced apart planar surfaces on a first side of a proximal end thereof and second and fourth spaced apart planar surfaces on a second side of the proximal end thereof; wherein, when the second knob part is assembled to the surgical cutting anastomat, the sixth junction surface is combined with the first plane; the seventh combining surface is combined on the second plane; the eighth bonding surface is bonded to the third plane; the ninth combining surface is combined on the fourth plane.
7. The knob assembly according to claim 6, wherein the fourth recess has a third abutting surface and a fourth abutting surface, the third abutting surface and the fourth abutting surface respectively face the fourth rotary structure, the third abutting surface is adjacent to the eighth combining surface and perpendicular to the eighth combining surface, and the fourth abutting surface is adjacent to the ninth combining surface and perpendicular to the ninth combining surface.
8. The knob assembly according to claim 7, wherein the tenth engaging surface is adjacent to the ninth engaging surface and the fourth abutting surface, respectively.
9. The knob assembly according to claim 1, wherein the first knob portion further comprises a plurality of first engaging portions protruding from the first edge of the first body, and a plurality of second engaging portions recessed from the second edge of the first body; the second knob part also comprises a plurality of third clamping parts which are concave inwards from the third edge of the second body, and a plurality of fourth clamping parts which are convex outwards from the fourth edge of the second body; the first clamping parts are detachably combined with the third clamping parts, and the second clamping parts are detachably combined with the fourth clamping parts, so that the first knob part is detachably combined with the second knob part.
10. A surgical cutting stapler comprising a knob assembly, characterized in that the knob assembly is a knob assembly according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810562098.8A CN110547840B (en) | 2018-05-31 | 2018-05-31 | Knob assembly and surgical cutting anastomat thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810562098.8A CN110547840B (en) | 2018-05-31 | 2018-05-31 | Knob assembly and surgical cutting anastomat thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110547840A CN110547840A (en) | 2019-12-10 |
| CN110547840B true CN110547840B (en) | 2022-03-18 |
Family
ID=68735460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810562098.8A Active CN110547840B (en) | 2018-05-31 | 2018-05-31 | Knob assembly and surgical cutting anastomat thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110547840B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315788A (en) * | 2013-06-27 | 2013-09-25 | 常州市康迪医用吻合器有限公司 | Cutting anastomat applicable to minimally invasive surgery |
| CN107257663A (en) * | 2014-12-18 | 2017-10-17 | 伊西康有限责任公司 | For the drive arrangement for the surgical instruments for being capable of joint motions |
| CN107750143A (en) * | 2015-06-18 | 2018-03-02 | 伊西康有限责任公司 | For the push/pull joint motions drive system for the surgical instruments for being capable of joint motions |
| CN107979988A (en) * | 2015-03-06 | 2018-05-01 | 伊西康有限责任公司 | To change the multilevel threshold of the operation of power-up surgical instruments |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8931682B2 (en) * | 2007-06-04 | 2015-01-13 | Ethicon Endo-Surgery, Inc. | Robotically-controlled shaft based rotary drive systems for surgical instruments |
| US8197479B2 (en) * | 2008-12-10 | 2012-06-12 | Tyco Healthcare Group Lp | Vessel sealer and divider |
-
2018
- 2018-05-31 CN CN201810562098.8A patent/CN110547840B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315788A (en) * | 2013-06-27 | 2013-09-25 | 常州市康迪医用吻合器有限公司 | Cutting anastomat applicable to minimally invasive surgery |
| CN107257663A (en) * | 2014-12-18 | 2017-10-17 | 伊西康有限责任公司 | For the drive arrangement for the surgical instruments for being capable of joint motions |
| CN107979988A (en) * | 2015-03-06 | 2018-05-01 | 伊西康有限责任公司 | To change the multilevel threshold of the operation of power-up surgical instruments |
| CN107750143A (en) * | 2015-06-18 | 2018-03-02 | 伊西康有限责任公司 | For the push/pull joint motions drive system for the surgical instruments for being capable of joint motions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110547840A (en) | 2019-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6892644B2 (en) | Reusable ultrasonic surgical instruments | |
| ES2804555T3 (en) | Circular stapler and staple component thereof | |
| US8038692B2 (en) | Modular design for ophthalmic surgical probe | |
| AU776599B2 (en) | Device for improving the aqueous humour outflow in the eye of a living thing | |
| ES2898613T3 (en) | Circular Stapler Mechanical Lock | |
| JP4606795B2 (en) | Surgical stapler with articulation connection to secure passage of firing bar | |
| JP2005514172A5 (en) | ||
| JP2014147716A (en) | Laparoscopic instrument, attachable end effector and method relating to the same | |
| JP2017506917A (en) | Drive device for endoscope shaft instrument | |
| KR20220024828A (en) | reusable ultrasonic scalpel | |
| JP2005028146A (en) | Surgical instrument incorporating articulation mechanism having rotation about longitudinal axis | |
| BR112012020296B1 (en) | Ultrasonic surgical instrument | |
| MX2012014360A (en) | Surgical device with reusable handle. | |
| JP2005028149A (en) | Surgical stapling instrument incorporating tapered firing bar for increased flexibility around articulation joint | |
| US9023073B2 (en) | Multi-trocar system | |
| CN110025365B (en) | Coreless puncture outfit | |
| US11116507B2 (en) | End effector assembly for a circular stapler apparatus | |
| CN110547840B (en) | Knob assembly and surgical cutting anastomat thereof | |
| JP2020530803A5 (en) | ||
| US20230093551A1 (en) | Surgical stapling device | |
| CN107007331B (en) | Built-in prepuce cutting stitching instrument with indicating device | |
| CN215384301U (en) | Straight intracavity cutting nail storehouse structure | |
| KR101740617B1 (en) | Cannula for minimally invasive surgery | |
| CN219439235U (en) | Medical endoscope supporting structure and surgical medical instrument | |
| CN211325295U (en) | Nail bin assembly and medical anastomat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |