CN113729798B

CN113729798B - Operation device, composite operation channel and multi-degree-of-freedom positioning structure

Info

Publication number: CN113729798B
Application number: CN202111015516.XA
Authority: CN
Inventors: 郭毅军; 郭以宏
Original assignee: Chongqing Xishan Science and Technology Co Ltd
Current assignee: Chongqing Xishan Science and Technology Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2023-01-10
Anticipated expiration: 2041-08-31
Also published as: CN113729798A

Abstract

The invention relates to a surgical device, a composite operation channel and a multi-degree-of-freedom positioning structure. The locking structure is provided with a trepanning with adjustable aperture size. The two movable bodies are connected and arranged in the trepanning and are all propped against the wall of the trepanning. When the aperture of trepanning was adjusted to first default scope, two movable bodies can remove along the pore wall of trepanning, and first through-hole can loosen the action bars that are located its interior and install. When the aperture of the trepanning is adjusted to a second preset range, the two movable bodies are fixedly arranged on the hole wall of the trepanning, and the operating rod arranged in the first through hole is fixed by the hole wall of the first through hole. The endoscope and the cutter can be arranged in the same operation channel, the positions of the endoscope and the cutter can be flexibly adjusted in multiple degrees of freedom, the requirement of an operation is met, and only one operation channel needs to be arranged in an operation area, so that the operation wound can be reduced, and the operation implementation difficulty is reduced.

Description

Operation device, composite operation channel and multi-degree-of-freedom positioning structure

Technical Field

The invention relates to the technical field of medical instruments, in particular to a surgical device, a composite operation channel and a multi-degree-of-freedom positioning structure.

Background

In traditional minimally invasive surgery or bone surgery such as spine, arthroscope, joint replacement bone, laparoscope and the like, a single operation channel is usually adopted as a practically applied surgical device, and the single operation channel can only allow a single cutter (also called a grinding head) or an endoscope (also called an endoscope) to enter and does not have the capability of multi-degree-of-freedom adjustment. When a plurality of instruments such as a cutter, an endoscope and the like need to be used simultaneously, at least two operation channels are arranged in an operation area of a human body from different directions, so that at least two single operation channels can be correspondingly arranged in the at least two operation channels one by one to meet operation conditions. However, the surgical channels are respectively established from different areas, so that the trauma of the surgery to the patient is larger, the recovery of the patient is difficult, the surgical implementation difficulty is larger, and the professional degree of a surgical operator is required to be high.

Disclosure of Invention

Accordingly, there is a need to overcome the drawbacks of the prior art and to provide a surgical device and a composite operation channel, which can reduce the surgical trauma and the difficulty of performing the surgery.

The technical scheme is as follows: a multi-degree-of-freedom positioning structure, comprising:

the locking structure is provided with a trepanning with adjustable aperture size;

the two movable bodies are connected and arranged in the trepanning and are abutted against the wall of the trepanning; the movable body is an elastic body and is provided with a first through hole which is used for fixedly installing or loosening the operating rod; when the aperture of the trepanning is adjusted to a first preset range, the two movable bodies can move along the wall of the trepanning or the movable bodies can rotate around the geometric center of the trepanning, and the first through hole can release an operating rod arranged in the first through hole; when the aperture of the trepanning is adjusted to a second preset range, the two movable bodies are fixedly arranged on the hole wall of the trepanning, and the operation rod arranged in the first through hole is fixed on the hole wall of the first through hole.

When the multi-degree-of-freedom positioning structure is used, the aperture of the trepanning is adjusted to a first preset range, the endoscope rod of the endoscope is inserted into the first through hole of one movable body, the cutter rod of the cutter is inserted into the first through hole of the other movable body, and then the following degrees of freedom can be adjusted: the degree of freedom is 1, and the positions of the endoscope and the cutter are adjusted by moving the two movable bodies along the hole wall of the trepanning; a degree of freedom 2 for adjusting the position of the lens of the endoscope by moving the scope shaft of the endoscope up and down along the axial direction of the first through hole, and for adjusting the position of the grinding portion of the tool by moving the tool bar of the tool up and down along the axial direction of the first through hole; and a degree of freedom 3 for adjusting the position of the lens of the endoscope by rotating the scope rod of the endoscope in the first through hole, and for adjusting the position of the grinding part of the cutter by rotating the cutter rod of the cutter in the first through hole. Therefore, the endoscope and the cutter can be arranged in the same operation channel, the positions of the endoscope and the cutter can be flexibly adjusted with multiple degrees of freedom, the requirement of an operation is met, namely, only one operation channel needs to be arranged in an operation area, the operation wound can be reduced, and the operation implementation difficulty is reduced.

In one embodiment, the first preset range is larger than the second preset range, a third preset range is further arranged between the first preset range and the second preset range, and the third preset range is larger than the second preset range and smaller than the first preset range; when the aperture of trepanning is adjusted to the third and is predetermine the scope, the movable body can be along the pore wall of trepanning removes or the movable body can rotate around its geometric centre, the action bars that install in it is fixed to the pore wall of first through-hole.

In one embodiment, the locking structure comprises an elastic positioning sleeve provided with the trepanning and a locking adjusting piece used for adjusting the aperture size of the trepanning; the side wall of the elastic positioning sleeve is provided with a notch and two adjusting blocks which are arranged on two opposite opening walls of the notch in a one-to-one correspondence manner; the locking adjusting piece is arranged on the adjusting blocks, and the aperture size of the trepanning is correspondingly adjusted by adjusting the distance between the two adjusting blocks.

In one embodiment, the adjusting block is provided with a screw hole, and the locking adjusting part is a screw or a bolt corresponding to the screw hole.

In one embodiment, the locking structure further comprises an elastic supporting cushion block arranged between the two adjusting blocks, the elastic supporting cushion block is provided with an avoiding hole corresponding to the position of the screw hole, and the locking adjusting piece is arranged in the avoiding hole.

In one embodiment, at least one first elastic opening is arranged on the inner side wall of the elastic positioning sleeve; or the first elastic openings are a plurality of, and the first elastic openings are arranged on the inner side wall of the elastic positioning sleeve at intervals; the first elastic opening extends from one end face of the elastic locating sleeve to the other end face of the elastic locating sleeve along the axial direction of the elastic locating sleeve.

In one embodiment, a movable groove is arranged on the hole wall of the trepanning in a surrounding mode; the two movable bodies are movably arranged in the movable groove.

In one embodiment, the multiple degree of freedom positioning structure further comprises two first sliding sleeves; the inner wall surface of the movable groove is an arc-shaped surface, and the movable body is a spherical body; the two first sliding sleeves are arranged between the two movable bodies and the movable grooves in a one-to-one correspondence manner; the outer wall surface of the first sliding sleeve is a first spherical surface which is adaptive to the radian of the arc-shaped surface, and the inner wall surface of the first sliding sleeve is a second spherical surface which is adaptive to the outer surface of the movable body; the outer wall surface of the first sliding sleeve is arranged in the movable groove, and the inner wall surface of the first sliding sleeve is sleeved outside the movable body.

In one embodiment, the multi-degree-of-freedom positioning structure further comprises two first positioning balls which are arranged in one-to-one correspondence with the two first sliding sleeves; a first positioning hole is formed in the inner wall surface of the first sliding sleeve, and a second positioning hole is formed in the movable body; one part of the first positioning ball is movably arranged in the first positioning hole, and the other part of the first positioning ball is movably arranged in the second positioning hole.

In one embodiment, the multi-degree-of-freedom positioning structure further comprises a second sliding sleeve and two second positioning balls; the second sliding sleeve is arranged between the two movable bodies, the second sliding sleeve is provided with two third spherical surfaces which are opposite, and the two third spherical surfaces are respectively and correspondingly sleeved outside the two movable bodies; the two second positioning balls and the two third spherical surfaces are arranged in one-to-one correspondence, the third spherical surfaces are provided with third positioning holes, the outer surface of the movable body is further provided with fourth positioning holes, one part of the second positioning balls is arranged in the third positioning holes, and the other part of the second positioning balls is arranged in the fourth positioning holes.

In one embodiment, the second positioning hole and the fourth positioning hole are both waist-shaped holes extending along the axial direction of the first through hole and arranged on the outer surface of the movable body; the hole wall of the first positioning hole is matched with the outer surface of the first positioning ball, and the hole wall of the third positioning hole is matched with the outer surface of the second positioning ball.

In one embodiment, the movable body is provided with a second elastic opening and a third elastic opening; the second elastic mouth extends from the top end of the first through hole wall toward the bottom end along the axial direction of the first through hole, and the third elastic mouth extends from the bottom end of the first through hole wall toward the top end along the axial direction of the first through hole.

In one embodiment, the second elastic opening is a plurality of elastic openings, the third elastic opening is a plurality of elastic openings, and the second elastic openings and the third elastic openings are alternately arranged.

In one embodiment, the number of the second elastic openings and the number of the third elastic openings are both odd.

In one embodiment, the movable bodies are movable balls, wherein the volume size of one movable ball is larger than that of the other movable ball.

In one embodiment, the multi-degree-of-freedom positioning structure further comprises a damping sheath correspondingly sleeved in the first through hole, and the damping sheath is used for fixing or loosening the operating rod.

In one embodiment, a first protrusion is wound on the outer wall of the top end of the damping sheath, the first protrusion is fixed in a contact manner with the top surface of the hole wall of the first through hole, a second protrusion is arranged on the outer wall of the bottom end of the damping sheath, and the second protrusion is fixed in a contact manner with the bottom surface of the hole wall of the first through hole; and the inner wall of the damping sheath is provided with a plurality of resistance elastic sheets.

A composite operating channel, comprising: the multi-degree-of-freedom positioning structure further comprises a channel pipe assembly, the bottom of the locking structure is connected with the channel pipe assembly, and an inner channel of the channel pipe assembly is communicated with the trepanning.

The endoscope and the cutter can be arranged in the same operation channel through the composite operation channel, the positions of the endoscope and the cutter can be flexibly adjusted through multiple degrees of freedom, the requirement of an operation is met, namely, only one operation channel needs to be arranged in an operation area, so that operation trauma can be reduced, and operation implementation difficulty is lowered.

In one embodiment, the channel tube assembly comprises a first channel tube, a second channel tube, and a mounting sheath; a connecting boss is arranged at the bottom of the locking structure, the connecting boss is connected with one end of the first channel pipe, and the other end of the first channel pipe is connected with one end of the second channel pipe; the installation sheath is an elastic sleeve and is sleeved outside the first channel pipe, and a closed space is formed between the inner wall of the installation sheath and the outer wall of the first channel pipe in a matched mode.

In one embodiment, the channel tube assembly further comprises a base disposed on the mounting sheath, a pressurization valve, and a fill valve; the base is provided with a first interface, a second interface and a pressurizing head, the first interface is communicated with the pressurizing valve, and the pressurizing head is communicated with the closed space; the second interface is communicated with the water injection valve.

In one embodiment, the other end of the second channel tube is provided with a plurality of spaced notches.

A surgical device comprises the composite operation channel, and further comprises an endoscope and a cutter, wherein the endoscope is arranged in the first through hole of one of the movable bodies, and the cutter is arranged in the first through hole of the other movable body.

According to the surgical device, the endoscope and the cutter can be arranged in the same operation channel, the positions of the endoscope and the cutter can be flexibly adjusted in multiple degrees of freedom, the surgical requirements are met, namely, only one operation channel needs to be arranged in an operation area, so that the operation wound can be reduced, and the operation implementation difficulty is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a multi-degree-of-freedom positioning structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of another multi-degree-of-freedom positioning structure according to an embodiment of the present invention;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic view of the locking structure of FIG. 1;

FIG. 5 is a schematic view of another perspective of the locking structure of FIG. 1;

FIG. 6 isbase:Sub>A schematic cross-sectional view of FIG. 5 at A-A;

FIG. 7 is a view structure diagram of a movable body of the multi-degree-of-freedom positioning structure according to an embodiment of the invention;

FIG. 8 is a diagram illustrating another perspective view of a movable body of the multi-degree-of-freedom positioning structure according to an embodiment of the present invention;

FIG. 9 is a view illustrating a structure of a movable body of a multi-degree-of-freedom positioning structure according to an embodiment of the invention;

FIG. 10 is a view structure diagram of the first sliding sleeve of the multi-degree-of-freedom positioning structure according to an embodiment of the present invention;

FIG. 11 is a schematic view of another embodiment of a first sliding sleeve with a multi-degree of freedom positioning structure according to the present invention;

FIG. 12 is a perspective view of a second sliding sleeve of the multi-degree-of-freedom positioning structure according to an embodiment of the present invention;

FIG. 13 is a structural view of another view angle of the second sliding sleeve of the multiple degree of freedom positioning structure according to an embodiment of the present invention;

FIG. 14 is a perspective view of a damping sheath of the multiple degree of freedom positioning structure in accordance with one embodiment of the present invention;

FIG. 15 is a schematic view of a composite operating channel according to an embodiment of the present invention;

FIG. 16 is a schematic view of a surgical device according to an embodiment of the present invention;

FIG. 17 is a schematic view of another surgical device in accordance with one embodiment of the present invention;

FIG. 18 is an enlarged view of FIG. 17 at B;

FIG. 19 is a view structure diagram of a multiple degree of freedom positioning structure of a compound manipulation channel hidden in accordance with an embodiment of the present invention;

FIG. 20 is an exploded view of FIG. 19;

fig. 21 is a schematic sectional view showing the structure of the first passage pipe of fig. 20.

10. A locking structure; 101. trepanning; 102. a movable groove; 11. an elastic positioning sleeve; 111. a notch; 112. an adjusting block; 113. a screw hole; 114. a first elastic opening; 12. locking the adjusting piece; 13. an elastic supporting cushion block; 131. avoiding holes; 14. connecting the bosses; 20. a movable body; 21. a first through hole; 22. a second positioning hole; 23. a fourth positioning hole; 24. a second elastic opening; 25. a third elastic opening; 30. an endoscope; 31. a mirror rod; 32. a lens; 40. a cutter; 41. a cutter bar; 42. grinding the part; 51. a first sliding sleeve; 511. a first spherical surface; 512. a second spherical surface; 513. a first positioning hole; 52. a second sliding sleeve; 521. a third spherical surface; 522. a third positioning hole; 53. a damping sheath; 531. a first protrusion; 532. a second protrusion; 533. a resistance spring; 534. a fourth elastic opening; 61. a first positioning ball; 62. a second positioning ball; 70. a channel tube assembly; 71. a first passage tube; 711. installing a groove; 72. a second channel pipe; 721. opening the gap; 73. installing a sheath; 731. a third protrusion; 74. a base; 741. a first interface; 742. a second interface; 743. a pressurizing head; 75. a pressurization valve; 76. a water injection valve.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 to 3, fig. 1 is a schematic view illustrating a multi-degree-of-freedom positioning structure according to an embodiment of the present invention, fig. 2 is a schematic view illustrating another multi-degree-of-freedom positioning structure according to an embodiment of the present invention, and fig. 3 is an exploded view of fig. 1. The multi-degree-of-freedom positioning structure provided by an embodiment of the invention comprises a locking structure 10 and two movable bodies 20. The locking structure 10 is provided with a trepan 101 with adjustable aperture size. The two movable bodies 20 are connected and disposed in the trepanning 101, and both abut against the wall of the trepanning 101. The movable body 20 is a deformable elastic body, and the movable body 20 is provided with a first through hole 21 with a slightly adjustable aperture. The first through hole 21 is used for fixing or loosening the operation lever. When the aperture of the trepanning 101 is adjusted to the first preset range, the two movable bodies 20 can move along the hole wall of the trepanning 101, or the movable bodies can rotate around the geometric center of the movable bodies, and the first through hole 21 can release the operating rod arranged in the first through hole. When the aperture of the trepanning 101 is adjusted to the second predetermined range, the two movable bodies 20 are fixedly disposed on the wall of the trepanning 101 and are not rotatable, and the operating rod disposed in the first through hole 21 is fixed by the wall of the first through hole 21.

When the movable body 20 is used to mount the endoscope 30 (as shown in fig. 15 to 17), the operation lever is specifically the scope lever 31 of the endoscope 30. When the movable body 20 is used for mounting the cutter 40 (as shown in fig. 15 to 17), the operating lever is specifically the cutter bar 41 of the cutter 40.

Specifically, the first through hole 21 of one of the movable bodies 20 is used for inserting the scope bar 31 on which the endoscope 30 is mounted, and the first through hole 21 of the other movable body 20 is used for inserting the knife bar 41 on which the knife 40 is mounted.

When the multi-degree-of-freedom positioning structure is used, the aperture of the trepanning 101 is adjusted to a first preset range, the endoscope rod 31 of the endoscope 30 is inserted into the first through hole 21 of one movable body 20, the cutter bar 41 of the cutter 40 is inserted into the first through hole 21 of the other movable body 20, and then the following degrees of freedom can be adjusted: a degree of freedom 1 (S1 direction shown in fig. 16) for adjusting the positions of the endoscope 30 and the cutter 40 by moving the two movable bodies 20 along the hole wall of the trepan 101; a degree of freedom 2 (S2 direction shown in fig. 16) for adjusting the position of the lens 32 of the endoscope 30 by moving the scope shaft 31 of the endoscope 30 up and down along the axial direction of the first through hole 21, and for adjusting the position of the ground portion of the tool 40 by moving the tool bar 41 of the tool 40 up and down along the axial direction of the first through hole 21; degree of freedom 3 (S3 direction shown in fig. 16), the position of the lens 32 of the endoscope 30 is adjusted by rotating the scope shaft 31 of the endoscope 30 in the first through hole 21, and the position of the grinding portion of the tool 40 is adjusted by rotating the blade bar 41 of the tool 40 in the first through hole 21. Therefore, the endoscope 30 and the cutter 40 can be arranged in the same operation channel, the positions of the endoscope 30 and the cutter 40 can be flexibly adjusted in multiple degrees of freedom, the requirement of an operation is met, namely, only one operation channel needs to be arranged in an operation area, so that the operation wound can be reduced, and the operation implementation difficulty is reduced.

It should be noted that the first preset range is larger than the second preset range, and the first preset range and the second preset range are designed correspondingly according to specific sizes of the movable body 20 and the locking structure 10, which is not limited herein. When the first preset range is designed, the aperture size of the trepanning 101 is large enough as long as the movable body 20 in the trepanning 101 can move to adjust the position along the hole wall of the trepanning 101, at the moment, the first through hole 21 can release the operating rod arranged in the first through hole 21, and the operating rod can adjust the position in the first through hole 21; when the second preset range is designed, the aperture size of the trepanning 101 is small enough as long as the movable body 20 in the trepanning 101 tightly abuts against the aperture wall of the trepanning 101, the movable body 20 is fixed on the aperture wall of the trepanning 101, at this time, the movable body 20 is stressed and compressed to deform, so that the aperture wall of the first through hole 21 is fixed on the operating rod arranged in the first through hole, and the endoscope 30 and the cutter 40 cannot be adjusted in position.

In one embodiment, the first predetermined range is greater than the second predetermined range, and a third predetermined range is further between the first predetermined range and the second predetermined range. The third preset range is larger than the second preset range and smaller than the first preset range. When the aperture of the trepanning 101 is adjusted to the third preset range, the movable body 20 can move along the aperture wall of the trepanning 101 or the movable body 20 can rotate around the geometric center thereof, and the aperture wall of the first through hole 21 fixes the operating rod arranged in the first through hole.

Referring to fig. 3 to 5, fig. 4 is a schematic view illustrating a perspective structure of the locking structure 10 in fig. 1, and fig. 5 is a schematic view illustrating another perspective structure of the locking structure 10 in fig. 1. Further, the locking structure 10 includes an elastic positioning sleeve 11 provided with a sleeve hole 101 and a locking adjusting member 12 for adjusting the size of the hole diameter of the sleeve hole 101. The side wall of the elastic positioning sleeve 11 is provided with a notch 111, and two adjusting blocks 112 which are arranged on two opposite opening walls of the notch 111 in a one-to-one correspondence manner. The locking adjusting piece 12 is installed on the adjusting blocks 112, and the locking adjusting piece 12 correspondingly adjusts the aperture size of the trepanning 101 by adjusting the distance between the two adjusting blocks 112. Thus, when the locking adjusting part 12 reduces the distance between the two adjusting blocks 112, the aperture of the sleeve hole 101 can be correspondingly reduced, so that the elastic positioning sleeve 11 can clamp the two movable bodies 20; when the locking adjusting piece 12 enlarges the distance between the two adjusting blocks 112, the aperture of the trepanning 101 can be enlarged correspondingly, and the elastic positioning sleeve 11 can loosen the two movable bodies 20.

It should be noted that the locking structure 10 may also be designed in other structural forms, and is not limited herein. For example, the locking structure 10 is designed in the form of an elastic hoop body, and the size of the hole of the trepan 101 is adjusted by pulling the two free ends of the elastic hoop body.

It should be further noted that the "adjusting block 112" may be a part of the "elastic positioning sleeve 11", that is, the "adjusting block 112" and the "other part of the elastic positioning sleeve 11" are integrally formed; or a separate member which can be separated from the other parts of the elastic locating sleeve 11, namely the adjusting block 112 can be manufactured separately and then combined with the other parts of the elastic locating sleeve 11 into a whole. As shown in fig. 3 to 5, in one embodiment, the "adjusting block 112" is a part of the "elastic positioning sleeve 11" which is integrally manufactured.

Referring to fig. 3 to 5, in one embodiment, the adjusting block 112 is provided with a screw hole 113, and the locking adjusting member 12 is a screw or a bolt corresponding to the screw hole 113. Therefore, the tightness degree of the locking adjusting part 12 is adjusted by rotating, so that the distance between the two adjusting blocks 112 can be adjusted steplessly, and the aperture size of the trepanning 101 can be adjusted to a proper size. Specifically, in order to facilitate the rotation of the locking adjuster 12, the locking adjuster 12 is, for example, a butterfly bolt. Of course, other locking adjusters 12 may be used to adjust the distance between the two adjusting blocks 112, such as a rope, a fixing method of tying the two adjusting blocks 112 with an elastic hoop, etc., without limitation.

Referring to fig. 3 to 5, in one embodiment, the locking structure 10 further includes an elastic supporting pad 13 disposed between the two adjusting blocks 112. The elastic supporting cushion block 13 is provided with an avoiding hole 131 corresponding to the screw hole 113, and the locking adjusting piece 12 is arranged in the avoiding hole 131. Thus, the elastic supporting cushion block 13 can realize that the two adjusting blocks 112 are stably assembled together, and can be beneficial to realizing stepless adjustment of the aperture size of the trepanning 101. Alternatively, the resilient lip block 13 may be eliminated.

Referring to fig. 3 to 5, in one embodiment, at least one first elastic opening 114 is formed on an inner sidewall of the elastic positioning sleeve 11. So, when locking adjusting part 12 adjustment trepanning 101 aperture size in-process, the inside wall that first elasticity mouth 114 can be convenient for elastic positioning cover 11 takes place deformation, thereby can be favorable to reducing trepanning 101 aperture thereby the fixed two movable bodies 20 of centre gripping to and do benefit to and enlarge trepanning 101 aperture thereby loosen two movable bodies 20.

Referring to fig. 3 to 5, in one embodiment, the first elastic opening 114 is a plurality of first elastic openings 114, and the plurality of first elastic openings 114 are disposed on the inner sidewall of the elastic positioning sleeve 11 at intervals. The first elastic opening 114 extends from one end surface of the elastic positioning sleeve 11 to the other end surface of the elastic positioning sleeve 11 in the axial direction of the elastic positioning sleeve 11. Specifically, the plurality of first elastic mouths 114 are uniformly arranged on the inner side wall of the elastic positioning sleeve 11. In this way, when the locking adjusting member 12 adjusts the aperture of the trepanning 101, the first elastic opening 114 can facilitate the inner side wall of the elastic positioning sleeve 11 to deform relatively uniformly, so as to facilitate fixing or loosening the movable bodies 20 on one hand, and facilitate the two movable bodies 20 to move to any position along the trepanning 101 when the two movable bodies 20 are loosened on the other hand; in addition, the two movable bodies 20 have better fixing effect when moving to any position of the elastic locating sleeve 11.

Referring to fig. 4 and 5, in order to obtain the angle positions of the two movable bodies 20 moving to the elastic positioning sleeve 11, a plurality of angle marks are disposed on the end surface or the outer side wall of the elastic positioning sleeve 11, and the positions to which the two movable bodies 20 move can be quickly determined through the angle marks.

Referring to fig. 1, fig. 3 and fig. 6, fig. 6 isbase:Sub>A schematic cross-sectional view of fig. 5 atbase:Sub>A-base:Sub>A. In one embodiment, a movable groove 102 is circumferentially arranged on the hole wall of the trepan 101. Both movable bodies 20 are movably disposed in the movable groove 102. In this way, the movable grooves 102 can facilitate the two movable bodies 20 to move circumferentially along the hole wall of the trepan 101 for adjusting the position. Further, the movable groove 102 plays a role of positioning the two movable bodies 20 in the axial direction along the trepan 101.

Referring to fig. 1, 3, 7 to 9, fig. 7 to 9 show three views of the movable body 20. In one embodiment, the multiple degree of freedom positioning structure further comprises two first runners 51. The inner wall surface of the movable groove 102 is an arc surface, and the movable body 20 is a spherical body. The two first sliding sleeves 51 are disposed between the two movable bodies 20 and the movable grooves 102 in a one-to-one correspondence.

Referring to fig. 3, 10 and 11, fig. 10 and 11 show two views of the first runner 51. Specifically, the outer wall surface of the first sliding sleeve 51 is a first spherical surface 511 corresponding to the curvature of the arc surface of the inner wall surface, and the inner wall surface of the first sliding sleeve 51 is a second spherical surface 512 corresponding to the outer surface of the movable body 20. The outer wall surface of the first sliding sleeve 51 is disposed in the movable groove 102, and the inner wall surface of the first sliding sleeve 51 is sleeved outside the movable body 20.

Referring to fig. 3, 10 and 11, in one embodiment, the multi-degree-of-freedom positioning structure further includes two first positioning balls 61 disposed corresponding to the two first sliding sleeves 51. The first sliding bush 51 has a first positioning hole 513 on an inner wall surface thereof, and the movable body 20 has a second positioning hole 22 thereon. A portion of the first positioning ball 61 is movably disposed in the first positioning hole 513, and another portion of the first positioning ball 61 is movably disposed in the second positioning hole 22. In this way, when the aperture of the trepan boring 101 is adjusted to the first preset range, the movable body 20 can also perform adjustment of the degree of freedom 4 (as shown in the direction of S4 in fig. 16), that is, the movable body 20 performs a rotational position adjustment around the connecting line of the centers of the two movable balls.

Referring to fig. 3, 12 and 13, fig. 12 and 13 show two perspective structural views of the second sliding sleeve 52. In one embodiment, the multiple degree of freedom positioning structure further includes a second sliding sleeve 52 and two second positioning balls 62. The second sliding sleeve 52 is disposed between the two movable bodies 20, the second sliding sleeve 52 has two third spherical surfaces 521 opposite to each other, and the two third spherical surfaces 521 are respectively and correspondingly sleeved outside the two movable bodies 20. The two second positioning balls 62 are disposed in one-to-one correspondence with the two third spherical surfaces 521, the third spherical surfaces 521 are provided with third positioning holes 522, and the outer surface of the movable body 20 is further provided with fourth positioning holes 23. A part of the second positioning ball 62 is disposed in the third positioning hole 522, and another part of the second positioning ball 62 is disposed in the fourth positioning hole 23.

Referring to fig. 3, 12 and 13, further, the second positioning hole 22 and the fourth positioning hole 23 are waist-shaped holes extending along the axial direction of the first through hole 21 and disposed on the outer surface of the movable body 20. The wall of the first positioning hole 513 fits the outer surface of the first positioning ball 61, and the wall of the third positioning hole 522 fits the outer surface of the second positioning ball 62. In this way, when the aperture of the trepan boring 101 is adjusted to the first preset range, the movable body 20 can also be adjusted with the degree of freedom 5 (in the direction of fig. 16 S5), that is, the movable body 20 can be swung left and right in the direction toward the other movable body 20 to adjust the position of the movable body 20 and the endoscope 30 or the cutter 40 therein.

Specifically, the movable body 20 in the present embodiment is, for example, a stainless steel ball or other material, and is not prone to rusting and has a long service life. Similarly, the first positioning ball 61 and the second positioning ball 62 may be made of stainless steel balls, or other materials.

Referring to fig. 3, 7 to 9, in one embodiment, the movable body 20 is provided with a second elastic opening 24 and a third elastic opening 25. The second elastic threads 24 extend from the top end of the hole wall of the first through hole 21 toward the bottom end along the axial direction of the first through hole 21, and the third elastic threads 25 extend from the bottom end of the hole wall of the first through hole 21 toward the top end along the axial direction of the first through hole 21. So, when locking regulating part 12 adjustment trepanning 101 aperture size in-process, the movable body 20 of being convenient for of second elasticity mouth 24 and third elasticity mouth 25 homoenergetic takes place deformation, thereby can be favorable to dwindling the fixed action bars of first through-hole 21 aperture centre gripping like this.

Referring to fig. 3, 7 to 9, further, a plurality of second elastic openings 24, a plurality of third elastic openings 25 are provided, and the second elastic openings 24 and the third elastic openings 25 are alternately arranged. Further, specifically, the plurality of second elastic mouths 24 and the plurality of third elastic mouths 25 are arranged on the movable body 20 at equal intervals. Like this, when the movable body 20 receives outside extrusion force, can take place deformation comparatively uniformly to the centre gripping effect to the action bars that sets up in it is better.

Referring to fig. 3, 7 to 9, in one embodiment, the number of the second elastic openings 24 and the third elastic openings 25 is odd. Thus, when the two movable bodies 20 rotate to any position of the locking structure 10, the force of the squeezing deformation applied to the movable bodies 20 can be better transmitted to other positions of the movable bodies 20 compared to the case where the number of the second elastic opening 24 and the number of the third elastic openings 25 are even number of movable bodies 20.

Referring to fig. 1 to 3, in one embodiment, the movable body 20 is a movable ball, wherein a volume size of one movable ball is larger than a volume size of another movable ball. In this way, when the endoscope 30 needs to observe the operation condition in a larger range, the endoscope 30 is arranged on the movable ball with a larger volume size, so that the operation condition can be observed in a larger range, and the cutter 40 is arranged on the movable ball with a relatively smaller volume size; on the contrary, when the tool 40 needs a large machining and grinding range, the tool 40 is disposed on the movable ball having a large volume, so that the large-range machining and grinding treatment can be performed, and the endoscope 30 is disposed on the movable ball having a relatively small volume.

Referring to fig. 3 and 14, fig. 14 is a view of a damping sheath 53 of a multiple degree of freedom positioning structure according to an embodiment of the invention. In one embodiment, the multiple degrees of freedom positioning structure further includes a damping sheath 53 correspondingly disposed in the first through hole 21, and the damping sheath 53 is used for fixedly installing or loosening the operation rod. Specifically, the damping sheath 53 is made of medical high-elasticity rubber, has a good buffering effect, is disposed in the first through hole 21 and is sleeved outside the operation rod, and has an effect of protecting the operation rod. In addition, the damping sheath 53 has a friction force with the operating lever, and the operating lever can be driven to adjust the position only when a certain force is applied to the operating lever.

Referring to fig. 3 and 14, further, a first protrusion 531 is wound on the outer wall of the top end of the damping sheath 53, and the first protrusion 531 is fixed in contact with the top surface of the hole wall of the first through hole 21. The outer wall of the bottom end of the damping sheath 53 is provided with a second protrusion 532, and the second protrusion 532 is fixed in a manner of being abutted against the bottom surface of the hole wall of the first through hole 21. The inner wall of the damping sheath 53 is provided with a plurality of resistance springs 533. Thus, after the damping sheath 53 is installed in the first through hole 21, when the first protrusion 531 is abutted and fixed with the top surface of the hole wall of the first through hole 21, the damping sheath 53 can be prevented from falling down; when the second protrusion 532 is fixed to the bottom of the hole wall of the first through hole 21, the operation rod is prevented from being separated from the first through hole 21 upward along with the operation rod during the process of taking out the operation rod upward. In addition, the resistance elastic sheet 533 has a supporting and fixing effect on the outer wall of the operating rod, and the friction force and the supporting force of the inner wall of the damping sheath 53 on the outer wall of the operating rod are combined, so that certain damping can be generated when the operating rod is inserted, taken out or rotated, the cutter 40 or the endoscope 30 can be stably supported, the cutter 40 or the endoscope 30 is prevented from falling downwards, and the stability is good.

Referring to fig. 3 and 14, in detail, a plurality of spaced fourth elastic openings 534 are disposed on a bottom side wall of the damping sheath 53, and the second protrusion 532 is, for example, in an inverted shape. So, in the assembling process, insert damping sheath 53's bottom from the top down into first through-hole 21, damping sheath 53's bottom can reduce the bore and enter into first through-hole 21 smoothly, after damping sheath 53 cartridge target in place, damping sheath 53's bottom is opened the hole wall bottom surface of second arch 532 and first through-hole 21 and is inconsistent fixed, is convenient for pack damping sheath 53 into first through-hole 21 like this.

Referring to fig. 15, fig. 15 is a schematic view illustrating a composite operation channel according to an embodiment of the invention. In one embodiment, a composite operation channel, comprising: the multiple degree of freedom positioning structure of any of the above embodiments, further comprising a channel tube assembly 70. The bottom of the locking structure 10 is connected to the channel tube assembly 70 and the inner channel of the channel tube assembly 70 is in communication with the trepan 101.

The endoscope 30 and the cutter 40 can be arranged in the same operation channel through the composite operation channel, the positions of the endoscope 30 and the cutter 40 can be flexibly adjusted in multiple degrees of freedom, the requirement of an operation is met, namely, only one operation channel needs to be arranged in an operation area, so that the operation trauma can be reduced, and the operation implementation difficulty is reduced.

Referring to fig. 15 and 19 to 21, fig. 19 is a view structural diagram illustrating a hidden multi-degree-of-freedom positioning structure of a composite operation channel according to an embodiment of the present invention, fig. 20 is an exploded structural diagram of fig. 19, and fig. 21 is a cross-sectional structural diagram of a first channel tube 71 in fig. 20. Further, the passage tube assembly 70 includes a first passage tube 71, a second passage tube 72, and a mounting sheath 73. The locking structure 10 is provided at the bottom thereof with a connection boss 14, the connection boss 14 is connected to one end of a first passage pipe 71, and the other end of the first passage pipe 71 is connected to one end of a second passage pipe 72. The installation sheath 73 is an elastic sheath, the installation sheath 73 is sleeved outside the first channel pipe 71, and a closed space is formed between the inner wall of the installation sheath 73 and the outer wall of the first channel pipe 71 in a matching manner. Specifically, the outer wall surface of the mounting sheath 73 is provided with at least one third projection 731. Thus, the installation sheath 73 expands and deforms by injecting sterile gas with the atmospheric pressure being more than or equal to 1.1 times or normal saline with the water pressure being more than or equal to 0.11MPa into the closed space, and is tightly attached to the inner wall surface of the operation channel of the operation area under the action of the third bulge 731 projecting out of the outer surface of the installation sheath 73, and the composite operation channel is stably fixed on the human body.

Referring to fig. 15, 19 to 21, specifically, two sealing rings (not labeled in the figures) are disposed on the inner wall of the mounting sheath 73 at intervals, and the two sealing rings are respectively located at two ends of the mounting sheath 73. Two mounting grooves 711 are provided on the outer wall of the first passage pipe 71 at intervals. Two seal rings are disposed in the two mounting grooves 711 in a one-to-one correspondence. Thus, the area between the two sealing rings is a sealing space.

Referring to fig. 15, 19 to 21, in particular, one end of the first channel pipe 71 is detachably connected to the connection boss 14 by a threaded connection. Thus, the disassembly and assembly operation is convenient. Likewise, the other end of the first passage pipe 71 is detachably connected to the second passage pipe 72, specifically, by means of a screw connection. Of course, other connection methods may be used, and are not limited herein.

In this embodiment, the mounting sheath 73 is made of, for example, a medical grade high elastic polymer material. In addition, other elements of the composite operation channel are also made of medical-grade materials, so that adverse effects caused in the operation process are avoided, and the safe operation is ensured.

Referring to fig. 15, 19-21, in one embodiment, the channel tube assembly 70 further includes a base 74 disposed on the mounting sheath 73, a pressurization valve 75, and a fill valve 76. The base 74 is provided with a first interface 741, a second interface 742, and a pressurization head 743. The first port 741 is communicated with the pressurizing valve 75, and the pressurizing head 743 is communicated with the closed space. The second port 742 communicates with the fill valve 76.

Referring to fig. 15 and 20, in one embodiment, a plurality of spaced apart slots 721 are provided in the other end of the second passage tube 72. The slit 721 thus provided facilitates observation of the tissue around the bottom of the surgical channel by the endoscope 30 during the surgical procedure.

Referring to fig. 16 to 18, fig. 16 is a schematic view showing a perspective structure of a surgical device according to an embodiment of the present invention, fig. 17 is a schematic view showing another perspective structure of the surgical device according to an embodiment of the present invention, and fig. 18 is an enlarged schematic view of fig. 17 at B. In one embodiment, a surgical device includes a composite operation channel, and further includes an endoscope 30 and a cutter 40, the endoscope 30 being disposed in the first through hole 21 of one of the movable bodies 20, and the cutter 40 being disposed in the first through hole 21 of the other movable body 20.

According to the surgical device, the endoscope 30 and the cutter 40 can be arranged in the same operation channel, the positions of the endoscope 30 and the cutter 40 can be flexibly adjusted in multiple degrees of freedom, the surgical requirements are met, namely, only one operation channel needs to be arranged in an operation area, so that the surgical trauma can be reduced, and the operation implementation difficulty is reduced.

Referring to fig. 17 and 18, further, since the observation operation of the cutter 40 and the endoscope 30 is simultaneously performed in a single channel, and the position of the lens 32 of the endoscope 30 is approximately parallel to the grinding portion 42 of the cutter 40, the lens 32 of the endoscope 30 is generally 30 degrees or 70 degrees relative to the axial direction of the first through hole 21, i.e., the viewing angle of the 30 degrees or 70 degrees area of the side surface of the axial line can be observed; in addition, because the space in the channel is narrow, the cutter 40 with the turning or certain bending function, such as a turning grinding head, is preferentially pushed and adapted, and a better using effect can be obtained.

In a specific embodiment, the surgical device of this embodiment, when applied specifically, comprises the steps of: installing the sterilized composite operation channel in an operation channel established in an operation process, injecting sterile gas or physiological saline from a pressurizing valve 75 connected with an installation sheath 73, and expanding and deforming the installation sheath 73 under the action of air pressure or water pressure until the installation sheath 73 is tightly combined and fixed in the operation channel; after the composite operation channel is installed and fixed in the operation channel, the cutter 40 and the endoscope 30 can be respectively inserted into the first through holes 21 of the two movable bodies 20 and are preliminarily fixed under the squeezing action of the resistance shrapnel 533 which is installed on the two movable bodies 20 and is positioned on the damping sheath 53; the water injection valve 76 is connected with the water conveying pipe; further adjustment of the tightness of the cutter 40 and endoscope 30 is achieved by adjusting the locking adjuster 12 of the locking mechanism 10. When in use, the tool 40 and the endoscope 30 are respectively provided with five degrees of freedom (1 to 5) for adjustment, and free adjustment in each direction is obtained, so that operation or observation of any area in the channel is realized.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

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 explicitly specified otherwise.

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; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. 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.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A multi-degree-of-freedom positioning structure is characterized by comprising:

the two movable bodies are connected and arranged in the trepanning and are abutted against the wall of the trepanning; the movable body is an elastic body and is provided with a first through hole which is used for fixedly installing or loosening the operating rod; when the aperture of the trepanning is adjusted to a first preset range, the two movable bodies can move along the hole wall of the trepanning or the movable bodies can rotate around the geometric centers of the movable bodies, and the first through hole can release an operating rod arranged in the first through hole; when the aperture of the trepanning is adjusted to a second preset range, the two movable bodies are fixedly arranged on the hole wall of the trepanning, and the operating rod arranged in the first through hole is fixed on the hole wall of the first through hole.

2. The multiple degree of freedom positioning structure of claim 1, wherein the first predetermined range is greater than the second predetermined range, a third predetermined range is further provided between the first predetermined range and the second predetermined range, the third predetermined range is greater than the second predetermined range and smaller than the first predetermined range; when the aperture of trepanning is adjusted to the third and is predetermine the scope, the movable body can be along the pore wall of trepanning removes or the movable body can rotate around its geometric centre, the action bars that install in it is fixed to the pore wall of first through-hole.

3. The multi-degree-of-freedom positioning structure as claimed in claim 1, wherein the locking structure includes an elastic positioning sleeve provided with the trepan boring and a locking adjusting member for adjusting the size of the trepan boring; the side wall of the elastic positioning sleeve is provided with a notch and two adjusting blocks which are arranged on two opposite opening walls of the notch in a one-to-one correspondence manner; the locking adjusting piece is arranged on the adjusting blocks, and the aperture size of the trepanning is correspondingly adjusted by adjusting the distance between the two adjusting blocks.

4. The multiple degrees of freedom positioning structure of claim 3, wherein the adjusting block is provided with a screw hole, and the locking adjusting member is a screw or a bolt corresponding to the screw hole.

5. The multi-degree-of-freedom positioning structure of claim 4, wherein the locking structure further comprises an elastic supporting cushion block arranged between the two adjusting blocks, the elastic supporting cushion block is provided with an avoiding hole corresponding to the screw hole, and the locking adjusting piece is arranged in the avoiding hole.

6. The multiple degree of freedom positioning structure of claim 3, wherein the inner sidewall of the elastic positioning sleeve is provided with at least one first elastic opening;

or the first elastic openings are a plurality of, and the first elastic openings are arranged on the inner side wall of the elastic positioning sleeve at intervals; the first elastic opening extends from one end face of the elastic locating sleeve to the other end face of the elastic locating sleeve along the axial direction of the elastic locating sleeve.

7. The multiple degree of freedom positioning structure of claim 1, wherein the hole wall of the trepan boring is circumferentially provided with a movable groove; the two movable bodies are movably arranged in the movable groove.

8. The multiple degree of freedom positioning structure of claim 7, further comprising two first sliding sleeves; the inner wall surface of the movable groove is an arc-shaped surface, and the movable body is a spherical body; the two first sliding sleeves are arranged between the two movable bodies and the movable grooves in a one-to-one correspondence manner; the outer wall surface of the first sliding sleeve is a first spherical surface which is adaptive to the radian of the arc-shaped surface, and the inner wall surface of the first sliding sleeve is a second spherical surface which is adaptive to the outer surface of the movable body; the outer wall surface of the first sliding sleeve is arranged in the movable groove, and the inner wall surface of the first sliding sleeve is sleeved outside the movable body.

9. The multiple degree of freedom positioning structure of claim 8, further comprising two first positioning balls disposed in one-to-one correspondence with the two first sliding sleeves; a first positioning hole is formed in the inner wall surface of the first sliding sleeve, and a second positioning hole is formed in the movable body; one part of the first positioning ball is movably arranged in the first positioning hole, and the other part of the first positioning ball is movably arranged in the second positioning hole.

10. The multiple degree of freedom positioning structure of claim 9, wherein the multiple degree of freedom positioning structure further comprises a second sliding sleeve and two second positioning balls; the second sliding sleeve is arranged between the two movable bodies, and is provided with two opposite third spherical surfaces which are respectively and correspondingly sleeved outside the two movable bodies; the two second positioning balls and the two third spherical surfaces are arranged in one-to-one correspondence, third positioning holes are formed in the third spherical surfaces, fourth positioning holes are further formed in the outer surfaces of the movable bodies, one part of the second positioning balls is arranged in the third positioning holes, and the other part of the second positioning balls is arranged in the fourth positioning holes.

11. The multiple degree of freedom positioning structure of claim 10, wherein the second positioning hole and the fourth positioning hole are both kidney-shaped holes extending along the axial direction of the first through hole and provided on the outer surface of the movable body; the hole wall of the first positioning hole is matched with the outer surface of the first positioning ball, and the hole wall of the third positioning hole is matched with the outer surface of the second positioning ball.

12. The multiple degree of freedom positioning structure of claim 1, wherein the movable body is provided with a second elastic opening and a third elastic opening; the second elastic mouth extends from the top end of the first through hole wall toward the bottom end along the axial direction of the first through hole, and the third elastic mouth extends from the bottom end of the first through hole wall toward the top end along the axial direction of the first through hole.

13. The multiple degree of freedom positioning structure of any one of claims 1 through 12, wherein the movable bodies are movable balls, one of which has a larger volume dimension than the other.

14. The multiple degree of freedom positioning structure of any one of claims 1 through 12 further comprising a damping sheath correspondingly sleeved in the first through hole, wherein the damping sheath is used for fixedly setting or loosening the operating rod.

15. The multi-degree-of-freedom positioning structure of claim 14, wherein a first protrusion is wound on the outer wall of the top end of the damping sheath, the first protrusion is in contact with and fixed to the top surface of the wall of the first through hole, a second protrusion is arranged on the outer wall of the bottom end of the damping sheath, and the second protrusion is in contact with and fixed to the bottom surface of the wall of the first through hole; and the inner wall of the damping sheath is provided with a plurality of resistance elastic sheets.

16. A composite operating channel, comprising: the multiple degree of freedom positioning structure of any one of claims 1 through 15 further including a channel tube assembly, the bottom of the locking structure being connected to the channel tube assembly, the inner channel of the channel tube assembly being in communication with the trepan.

17. The composite operating channel of claim 16, wherein the channel tube assembly comprises a first channel tube, a second channel tube, and a mounting sheath; a connecting boss is arranged at the bottom of the locking structure, the connecting boss is connected with one end of the first channel pipe, and the other end of the first channel pipe is connected with one end of the second channel pipe; the installation sheath is an elastic sleeve, the installation sheath is sleeved outside the first channel pipe, and a closed space is formed between the inner wall of the installation sheath and the outer wall of the first channel pipe in a matched mode.

18. The compound operating passageway of claim 17, wherein the passageway tube assembly further comprises a base disposed on the mounting sheath, a pressurization valve, and a fill valve; the base is provided with a first interface, a second interface and a pressurizing head, the first interface is communicated with the pressurizing valve, and the pressurizing head is communicated with the closed space; the second interface is communicated with the water injection valve.

19. A surgical device comprising the composite operation channel according to any one of claims 16 to 18, further comprising an endoscope disposed in the first through hole of one of the movable bodies and a cutter disposed in the first through hole of the other movable body.