CN217218960U

CN217218960U - Wane structure for endoscopic surgical instrument

Info

Publication number: CN217218960U
Application number: CN202221033094.9U
Authority: CN
Inventors: 张洪良; 尹升乾; 张进; 邵柯; 刘丹; 蒋春刚; 袁浩
Original assignee: Jiangsu Weidekang Medical Science & Technology Co ltd
Current assignee: Jiangsu Weidekang Medical Science & Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-19
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a wane structure for endoscopic surgical instruments, which comprises a first rotating shaft, a first wane sleeved on the first rotating shaft, a second rotating shaft positioned below the first rotating shaft and a second wane sleeved on the second rotating shaft; the central axes of the first rotating shaft and the second rotating shaft are vertical; two ends of the first wane in the direction vertical to the central shaft of the first rotating shaft are respectively connected with one ends of two traction wires, and the other ends of the traction wires are connected with a guide tube of an endoscopic surgical instrument; two ends of the second wane, which are vertical to the central axis direction of the second rotating shaft, are respectively connected with one ends of the other two traction wires, and the other ends of the traction wires are connected with a guide tube of an endoscopic surgical instrument; the first and second paddles are rotatable about respective central axes. The utility model discloses can effectively avoid the traction wire card dead to be located the motion mutually noninterfere of the ascending two sets of traction wires of vertical direction, it is higher to adjust the flexibility ratio.

Description

Wane structure for endoscopic surgical instrument

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a wane structure for surgical equipment under an endoscope.

Background

The endoscopic surgical instrument is used for cutting stomach polyps or colon polyps under a gastroscope or an enteroscope, and comprises sampling forceps, hemostatic forceps, anastomosis clamps and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the endoscopic surgery apparatus's among the prior art traction wire unified fix on twist grip, long-term use causes the traction wire card easily to die, influences the technical problem of the normal use of apparatus, the utility model provides a wane structure for endoscopic surgery apparatus solves above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is: a wane structure for endoscopic surgical instruments comprises a first rotating shaft, a first wane sleeved on the first rotating shaft, a second rotating shaft positioned below the first rotating shaft and a second wane sleeved on the second rotating shaft; the central axes of the first rotating shaft and the second rotating shaft are vertical; two ends of the first wane in the direction vertical to the central shaft of the first rotating shaft are respectively connected with one ends of two traction wires, and the other ends of the traction wires are connected with a guide tube of an endoscopic surgical instrument; two ends of the second wane, which are vertical to the central axis direction of the second rotating shaft, are respectively connected with one ends of the other two traction wires, and the other ends of the traction wires are connected with a guide tube of an endoscopic surgical instrument; the first and second paddles are rotatable about respective central axes.

Furthermore, the first rocker and the second rocker are driven by ejector rods which abut against the upper surfaces of the corresponding rockers to rotate.

Furthermore, the upper surfaces of the first rocker and the second rocker are provided with planes for the ejector rods to abut against.

Furthermore, the circumferential outer side of the first rotating shaft is provided with a through hole for the ejector rod to pass through, so that the ejector rod passes through the through hole and is abutted against the second warping plate.

Furthermore, the circumference outside of second pivot has the rectangular shape groove of stepping down along the axial extension of second pivot, the rectangular shape groove of stepping down link up along upper and lower direction to make the traction wire pass the rectangular shape groove of stepping down is connected with first wane.

Furthermore, the first rotating shaft and the second rotating shaft are both fixedly connected with a shell of the endoscopic surgical instrument; the first warping plate is rotatably connected with the first rotating shaft, and the second warping plate is rotatably connected with the second rotating shaft.

Further, the axial both ends of first pivot and second pivot with the casing butt, the periphery of first pivot and second pivot has with casing complex non-circular contact surface.

Furthermore, both ends of the first wane are provided with threading holes for inserting the traction wires, the first wane is provided with locking holes for installing locking shafts, and the threading holes are communicated with the locking holes; the second rocker has the same structure as the first rocker.

Furthermore, the first warping plate comprises two rotating discs sleeved on the first rotating shaft, the end surfaces of the two rotating discs are arranged at intervals, and a shaft hole is formed in the first rotating shaft between the two rotating discs; the second rocker is identical to the first rocker in structure.

The utility model has the advantages that:

(1) a wane structure for surgical instruments under endoscope, the wane through two sets of perpendicular arrangements connects four traction wires respectively at the tip of two wanes, can effectively avoid the traction wire card to die, when first wane or second wane are rotatory, two traction wires that are located the symmetric position rise respectively and descend to make the stand pipe crooked, and be located the motion mutually noninterfere of the ascending two sets of traction wires of vertical direction, it is higher to adjust the flexibility ratio.

(2) A wane structure for surgical instruments under endoscope, be equipped with locking hole and through wires hole on first wane and the second wane, the traction wire passes through the through wires hole and extends to locking hole to be connected with the locking axle in locking hole department, adopt movable connected mode to replace original fixed connection mode, make things convenient for the transportation of apparatus.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of the assembly of a wane structure and a housing for an endoscopic surgical instrument according to the present invention

FIG. 2 is a perspective view of an embodiment of a paddle structure for an endoscopic surgical instrument in accordance with the present invention;

FIG. 3 is a front view of an embodiment of a paddle structure for an endoscopic surgical instrument in accordance with the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

fig. 5 is a sectional view taken along line B-B of fig. 3.

In the figure, 1, a first rotating shaft, 101, a through hole, 2, a first wane, 3, a second rotating shaft, 301, a strip-shaped abdicating groove, 4, a second wane, 5, a shell, 6, a cutting plane, 7, a threading hole, 8, a locking hole, 9, a turntable, 10 and a shaft hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, a rocker structure for an endoscopic surgical instrument includes a first shaft 1, a first rocker 2 sleeved on the first shaft 1, a second shaft 3 located below the first shaft 1, and a second rocker 4 sleeved on the second shaft 3; the central axes of the first rotating shaft 1 and the second rotating shaft 3 are vertical; two ends of the first wane 2 in the direction vertical to the central shaft of the first rotating shaft 1 are respectively connected with one ends of two traction wires, and the other ends of the traction wires are connected with a guide tube of an endoscopic surgical instrument; two ends of the second seesaw 4, which are vertical to the direction of the central shaft of the second rotating shaft 3, are respectively connected with one ends of the other two traction wires, and the other ends of the traction wires are connected with a guide tube of an endoscopic surgical instrument; the first and second rockers 2, 4 are rotatable about respective central axes.

The guide tube is connected with a functional component of an endoscopic surgical instrument, the functional component directly acts on a tissue organ to draw, clamp or sample the tissue, and the tissue can be, for example, sampling forceps, hemostatic forceps, drawing clips and the like; the guide tube can be a flexible snake bone or a quinquelocular tube, and the angle of the functional component is adjusted by bending the guide tube.

The first rotating shaft 1 and the second rotating shaft 3 are respectively used as the rotating centers of the first rocker 2 and the second rocker 4, the first rocker 2 and the second rocker 4 are used for drawing two groups of traction wires in two vertical directions, namely four traction wires are connected on the guide pipe, two traction wires are connected with two ends of the first rocker 2, the other two traction wires are connected with two ends of the second rocker 4, when the first rocker 2 rotates, the functional component bends in the plane where the first rocker 2 rotates, when the second rocker 4 rotates, the functional component bends in the plane where the second rocker 4 rotates, because the first rocker 2 and the second rocker 4 are independent, the motion of the two groups of traction wires are also independent, when the first rocker 2 and the second rocker 4 rotate and incline simultaneously, the functional component bends to a certain angle direction between the two groups of traction wires, universal rotation can be realized, meanwhile, each traction wire is distributed at different positions in a dispersed manner, and the traction wires cannot be blocked.

The utility model discloses well first wane 2 and the preferred looks isostructure that uses of second wane 4, first wane 2 and second wane 4 are rotatory under the exogenic action, for example can be rotatory in the ejector pin drive that corresponds the wane upper surface by the butt, through promoting the ejector pin that corresponds the wane tip department at traction wire place, make this traction wire relax, and the traction wire that is located symmetric position simultaneously tightens up, and the functional component tightens up the direction crooked to the traction wire. Preferably, the upper surfaces of the first and second rockers 2 and 4 have a flat surface against which the push rod abuts.

Because the projections of first pivot 1 and second pivot 3 on the horizontal surface are mutually perpendicular, first wane 2 and the projection of first pivot 1 on the horizontal surface are mutually perpendicular too, consequently the projection of first pivot 1 and second wane 4 on the horizontal surface overlaps, the projection of second pivot 3 and first wane 2 on the horizontal surface overlaps, the drive end of ejector pin is located the upper end, in order to make the ejector pin can push up to the second wane 4 of below on, the circumference outside of first pivot 1 has the through-hole 101 that supplies the ejector pin to pass, make the ejector pin pass through-hole 101 and second wane 4 butt.

Similarly, the haulage wire upwards extends from the stand pipe of below, in order to make the haulage wire can reach the first wane 2 of top, the circumference outside of second pivot 3 has the rectangular shape groove 301 of stepping down along the axial extension of second pivot 3, and rectangular shape groove 301 of stepping down link up along upper and lower direction to make the haulage wire pass rectangular shape groove 301 of stepping down and be connected with first wane 2. Two strip-shaped abdicating grooves 301 are arranged on the second rotating shaft 3 and are respectively used for two traction wires to pass through and be connected with two ends of the first warping plate 2.

In the utility model, the first rotating shaft 1 and the second rotating shaft 3 can rotate, the first wane 2 rotates along with the first rotating shaft 1, the second wane 4 rotates along with the second rotating shaft 3, and in the preferred embodiment, the first rotating shaft 1 and the second rotating shaft 3 are both fixedly connected with the shell 5 of the endoscopic surgical instrument; first wane 2 rotates with first pivot 1 to be connected, and second wane 4 rotates with second pivot 3 to be connected, and first pivot 1 and second pivot 3 are with casing 5's fixed mode does: the axial both ends of first pivot 1 and second pivot 3 and casing 5 butt, the periphery of first pivot 1 and second pivot 3 have with casing 5 complex non-circular contact surface. As shown in fig. 2, the first rotating shaft 1 and the second rotating shaft 3 each have a cutting plane 6 on the circumferential surface near both ends in the axial direction.

The traction wire can be welded and fixed with the first wane 2 and the second wane 4, after assembly is completed, the traction wire is in a tensioning state and is easy to break in the transportation process, in a preferred embodiment, two ends of the first wane 2 are provided with threading holes 7 for the traction wire to be inserted into, the first wane 2 is provided with locking holes 8 for installing locking shafts, and the threading holes 7 are communicated with the locking holes 8; the second rocker 4 is of the same construction as the first rocker 2. Use first wane 2 as an example, there are two locking holes 8 and two through wires hole 7 on the first wane 2, each movable mounting locking shaft on every locking hole 8, the locking shaft is used for connecting the traction wire, can make the traction wire tighten up through rotatory locking shaft, need not directly take up the traction wire when fixed traction wire tip, make the traction wire can transport under the state of relaxing, in addition, can adjust the elasticity of traction wire more in a flexible way, after the long-term use length of traction wire changes, can readjust taut traction wire.

In another embodiment of the present invention, the first seesaw 2 comprises two rotating discs 9 sleeved on the first rotating shaft 1, end surfaces of the two rotating discs 9 are arranged at intervals, and a shaft hole 10 is arranged on the first rotating shaft 1 between the two rotating discs 9; the second rocker 4 is identical in structure to the first rocker 2. As shown in fig. 5, the first rotating shaft 1 and the second rotating shaft 3 are provided with shaft holes 10, so that a space is left at the center of the housing 5 for providing an intermediate connecting shaft connected with the functional component.

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", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In this specification, the schematic representations of the terms are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A paddle structure for an endoscopic surgical instrument, comprising: comprises a first rotating shaft (1), a first warping plate (2) sleeved on the first rotating shaft (1), a second rotating shaft (3) positioned below the first rotating shaft (1) and a second warping plate (4) sleeved on the second rotating shaft (3); the central shafts of the first rotating shaft (1) and the second rotating shaft (3) are vertical; two ends of the first wane (2) in the direction vertical to the central shaft of the first rotating shaft (1) are respectively connected with one ends of two traction wires, and the other ends of the traction wires are connected with a guide tube of an endoscopic surgical instrument; two ends of the second warping plate (4) in the direction vertical to the central shaft of the second rotating shaft (3) are respectively connected with one ends of the other two traction wires, and the other ends of the traction wires are connected with a guide tube of an endoscopic surgical instrument; the first rocker (2) and the second rocker (4) can rotate around corresponding central axes.

2. The paddle structure for an endoscopic surgical instrument according to claim 1, wherein: the first warping plate (2) and the second warping plate (4) are driven to rotate by ejector rods which are abutted to the upper surfaces of the corresponding warping plates.

3. The paddle structure for an endoscopic surgical instrument according to claim 2, wherein: the upper surfaces of the first rocker (2) and the second rocker (4) are provided with planes for the push rods to abut against.

4. The paddle structure for an endoscopic surgical instrument according to claim 2, wherein: the circumferential outer side of the first rotating shaft (1) is provided with a through hole (101) for a push rod to pass through, so that the push rod passes through the through hole (101) and is abutted against the second warping plate (4).

5. The paddle structure for an endoscopic surgical instrument according to claim 1, wherein: the circumference outside of second pivot (3) has the rectangular shape groove of stepping down (301) along the axial extension of second pivot (3), rectangular shape groove of stepping down (301) link up along the upper and lower direction to make the haulage wire pass rectangular shape groove of stepping down (301) are connected with first wane (2).

6. The paddle structure for an endoscopic surgical instrument according to claim 1, wherein: the first rotating shaft (1) and the second rotating shaft (3) are fixedly connected with a shell (5) of an endoscopic surgical instrument; first wane (2) rotate with first pivot (1) and are connected, and second wane (4) rotate with second pivot (3) and are connected.

7. The paddle structure for an endoscopic surgical instrument according to claim 6, wherein: the axial both ends of first pivot (1) and second pivot (3) with casing (5) butt, the periphery of first pivot (1) and second pivot (3) have with casing (5) complex non-circular contact surface.

8. The paddle structure for an endoscopic surgical instrument according to claim 1, wherein: two ends of the first warping plate (2) are provided with threading holes (7) for inserting the traction wires, the first warping plate (2) is provided with locking holes (8) for installing locking shafts, and the threading holes (7) are communicated with the locking holes (8); the second warping plate (4) has the same structure as the first warping plate (2).

9. A paddle structure for an endoscopic surgical instrument according to claim 1, wherein: the first warping plate (2) comprises two rotating discs (9) sleeved on the first rotating shaft (1), the end faces of the two rotating discs (9) are arranged at intervals, and a shaft hole (10) is formed in the first rotating shaft (1) between the two rotating discs (9); the second warping plate (4) has the same structure as the first warping plate (2).