CN215503303U - Minimally invasive bending controllable operation channel - Google Patents

Abstract

A minimally invasive bending controllable operation channel comprises a channel, a main body, a rotary ball, a rotary seat and a control handle, wherein the channel, the main body, the rotary ball, the rotary seat and the control handle are sequentially connected from left to right; the channel comprises a protective sleeve, an inner wire tube, a head cap, an inner conical head, a rigid channel and a flexible channel, wherein 4 control line mounting holes are uniformly distributed on the circumference of the flexible channel, a spring type joint is arranged at the left end of the flexible channel, the protective sleeve is arranged on the outer surface of the spring type joint of the flexible channel, and the inner wire tube is arranged in the spring type joint; the left end of the inner line pipe is expanded and outwards folded to cover the outer surface of the end cap. The minimally invasive bending controllable surgical channel has the function of adjusting the operation position and the operation angle of a surgical instrument, the control handle can be controlled up, down, left and right according to the arrival position of the surgical instrument, the use flexibility is improved, the minimally invasive bending controllable surgical channel can be used in various minimally invasive surgical operations, and the application prospect is wide.

Description

Minimally invasive bending controllable operation channel

Technical Field

The utility model relates to the field of medical instruments, in particular to a minimally invasive bending controllable operation channel.

Background

Minimally invasive surgery has the advantages of small wound, light pain, quick recovery of patients and the like, and is widely applied to clinical treatment. However, in the process of implementing the minimally invasive surgery, the minimally invasive surgery must be implemented by using the assistance of some surgical auxiliary instruments, and the auxiliary instruments provide convenience for the surgical operation of doctors.

For example, when performing laparoscopic surgery, a surgeon may perform laparoscopic surgery by opening a small opening in the abdomen, inserting a portion of the surgical aid into the small opening, fixing the small opening, inflating gas into the abdominal cavity through the surgical aid by means of a pneumoperitoneum machine to form a pneumoperitoneum, and then inserting the surgical aid and the related auxiliary units (e.g., the illumination unit and the image acquisition unit) into the abdominal cavity through the surgical aid. Whether the surgical auxiliary instrument can be well bent and controlled after entering the abdominal cavity is always a difficult technical problem to solve. Therefore, it is necessary to develop a minimally invasive curved controllable surgical tunnel to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects, the utility model aims to provide the minimally invasive bending controllable surgical channel which is reasonable in structural design, has the function of adjusting the operation position and the operation angle of a surgical instrument, can control the control handle up, down, left and right according to the arrival position of the surgical instrument, improves the use flexibility, can be used in various minimally invasive surgical operations, and has wide application prospect.

The technical scheme is as follows: a minimally invasive bending controllable operation channel comprises a channel, a main body, a rotary ball, a rotary seat and a control handle, wherein the channel, the main body, the rotary ball, the rotary seat and the control handle are sequentially connected from left to right; the channel comprises a protective sleeve, an inner wire tube, a head cap, an inner conical head, a rigid channel and a flexible channel, wherein 4 control line mounting holes are uniformly distributed on the circumference of the flexible channel, a spring type joint is arranged at the left end of the flexible channel, the protective sleeve is arranged on the outer surface of the spring type joint of the flexible channel, and the inner wire tube is arranged in the spring type joint; the left end of the inner wire tube is expanded and turned outwards to cover the outer surface of the end cap, the inner conical head is arranged between the outer wall of the inner wire tube and the inner wall of the end cap, and 4 semicircular arc-shaped concave surfaces are uniformly distributed on the excircle of the inner conical head; the left end of the rigid channel is arranged in the inner cavity of the flexible channel, the right end of the rigid channel is arranged in the inner cavity of the rotary ball, and the left end of the rigid channel is positioned on the left side of the inner wire pipe; the rotary seat comprises a seat, control points, rivets and control lines, wherein 4 control cavities are uniformly distributed on the circumference of the seat, a circular cavity is arranged inside the seat and connected with the rotary ball, and the circular cavity is used for an operation channel; the control point is spheroid shape, 4 the control point is installed respectively in 4 control intracavity, every the control point all is provided with the centre bore, every the rivet is all installed to the centre bore, 4 the right-hand member of control line runs through rivet inner chamber respectively and the left end runs through swivel ball, 4 control line mounting holes, 4 semicircle arc form concave surface respectively in proper order, merges through semicircle arc form concave surface and end cap and lets the control line extrusion in the semicircle arc form concave surface.

The minimally invasive bending controllable operation channel is reasonable in structural design, has the function of adjusting the operation position and the operation angle of an operation instrument, the left end of the channel is a flexible section due to the structural design of the channel, the right end of the channel is a rigid section, control points are uniformly distributed on the periphery of the rotating seat and extend from the rotating seat to the rotating ball and the left end of the channel, and the control handle can be controlled up, down, left and right according to the arrival position of the operation instrument, so that the use flexibility is improved, the minimally invasive bending controllable operation channel can be used in various minimally invasive surgical operations, and convenience is provided for doctors in abdominal cavity or thoracic cavity operations.

When the minimally invasive bending controllable operation channel is applied to laparoscopic surgery, only a small opening is required to be formed in the abdomen, the channel of the minimally invasive bending controllable operation channel extends into the abdomen and is fixed, required surgical instruments enter the abdominal cavity from the control handle, sequentially pass through the rotary seat, the rotary ball and the channel and enter the abdominal cavity, when the control handle is adjusted to enable the control handle and the rotary seat to rotate relatively, the rotary seat can be pulled by a control line through the rotation of the rotary ball for 180 degrees flexibly, the channel can be bent for 180 degrees through the control line, and the position of the surgical instruments can be controlled at the upper part, the lower part, the left part and the right part, so that a doctor can implement the abdominal operation.

Further, the minimally invasive bending controllable surgical channel comprises a tearable dilator, wherein the tearable dilator is arranged at the left end of the channel and connected with the channel 1.

The tear-off expander is arranged, so that the wound protection and the wound expansion are facilitated, and the channel can smoothly reach the focus.

Further, in the minimally invasive bending controllable operation channel, the tearable dilator comprises a dilator, a tearable opening and a dilating cone, the dilator is arranged on the periphery of the channel, the dilator is provided with an inner cavity, and the wall thickness of a tube body of the dilator is 0.1-0.2 mm; the tearable opening is arranged at the edge of the expander tube body, and the width of the tearable opening is between 0.1 and 0.2 mm; the expansion cone is arranged at the left end of the expander.

The passageway is through can tearing the expander and get into the abdominal cavity together, and after arriving the focus, expander body border position is provided with can tear the mouth, can conveniently tear and tear the mouth and make its abdominal cavity of directly withdrawing from, can simplify the treatment step, avoids patient's secondary damage, reduces patient's misery, saves the operation time. Wherein, the material of the dilator can be one of PTFE, FEP, PE, PP or TPU.

Further, the minimally invasive bending controllable surgical channel is formed by assembling an upper shell and a lower shell, and arc-shaped contours are arranged on the periphery of the surface of the main body.

Further, in the minimally invasive bending controllable operation channel, the rotating ball comprises a ball seat, a ball head, a luer connector, a luer cap and an anti-reverse valve, and the ball seat and the ball head are sequentially connected from left to right; 4 contour cavities are uniformly distributed on the circumference of the left end of the ball seat, 4 concave arc-shaped clamps are uniformly distributed on the circumference of the middle part of the ball seat, and the right ends of the 4 control wires respectively penetrate through the rivet inner cavity and the left end and respectively and sequentially penetrate through the 4 concave arc-shaped clamps, the 4 contour cavities, the 4 control wire mounting holes and the 4 semicircular arc-shaped concave surfaces; the ball head is spherical, and hanging columns are arranged at two ends of the ball head; the luer connector is arranged on the ball seat and communicated with the inner cavity of the ball seat, is positioned on the right side of the contour cavity, and is provided with a luer cap; an anti-reverse valve is arranged in the cavity in the middle of the ball seat.

The luer connector is used for being connected with an inflation valve and then is connected with a pneumoperitoneum machine and other equipment, the pneumoperitoneum machine blows gas into an abdominal cavity through the luer connector to form a pneumoperitoneum, and then required surgical instruments and related auxiliary units penetrate into the abdominal cavity through the minimally invasive bending controllable surgical channel. Wherein, the luer connector can adopt a standard 6 to 100 locking connector, and the luer cap adopts a standard 6 to 100 locking cap. An anti-reflux valve is provided to ensure that the air flow can flow through the passageway and out the left end of the tearable dilator.

Further, in the minimally invasive bending controllable surgical channel, the rotating ball further comprises a buckle and an inner tube; the right-hand member inner chamber of ball seat is provided with the back-off screens, the back-off screens department at the ball seat inner chamber is installed to the buckle, the inner tube sets up in ball seat, bulb inner chamber center department and the right-hand member of inner tube stretches out the bulb, the left end of inner tube is located the right side of anti-reverse valve and is connected with the buckle.

Further, in the minimally invasive bending controllable surgical channel, the control handle comprises a handle, a main rotating seat and a sealing sleeve, the left end of the handle is connected with the main rotating seat, and the main rotating seat is connected with the rotating seat; the circumference of the main rotating seat is uniformly provided with 4 control cavities and 4 buckles, the inside of the main rotating seat is provided with a circular cavity structure, and the circular cavity structure is used for installing a ball head and is used for an operation channel; the right end of the handle is provided with a sealing sleeve, and the surgical instrument can play a role in sealing when entering from the inner cavity of the sealing sleeve.

Further, the material of the minimally invasive bending controllable surgical channel is elastomer TPU or silica gel, the thickness of the protective sleeve is 0.1-1.0mm, the material of the inner wire tube is special high polymer material E-PTFE, the material of the end cap is rigid stainless steel, the material of the inner cone head is rigid stainless steel, the material of the rigid channel is 304 stainless steel, the material of the flexible channel is PTFE or FEP or PE or PP or TPU, the material of the inner tube is medical PVC or silica gel, the material of the control point is 304 stainless steel, the material of the rivet is 304 stainless steel, the material of the control line is 304 high-strength steel wire, and the diameter of the control line is 0.2-0.6 mm; the material of the sealing sleeve is medical grade silica gel, and the hardness of the sealing sleeve is 50-65A.

The utility model has the beneficial effects that:

(1) the minimally invasive bending controllable operation channel is reasonable in structural design, has the function of adjusting the operation position and the operation angle of an operation instrument, the left end of the channel is a flexible section due to the structural design of the channel, the right end of the channel is a rigid section, when a control handle is adjusted to enable the control handle and a rotary seat to rotate relatively, the rotary seat can flexibly rotate 180 degrees through a rotary ball to control the traction of a control line, the channel can be bent 180 degrees through the control line, the upper part, the lower part, the left part and the right part are controlled according to the arrival position of the operation instrument, the use flexibility is improved, the minimally invasive bending controllable operation channel can be used in various minimally invasive surgical operations, and the application prospect is wide;

(2) the minimally invasive bending controllable operation channel is provided with the tearable dilator, so that the protection and the expansion of the wound are facilitated, and the channel can reach a focus more smoothly; the tearable opening is arranged, so that the tearable opening is conveniently torn to enable the tearable dilator to be directly withdrawn from the abdominal cavity, the treatment steps can be simplified, the secondary damage of a patient is avoided, the pain of the patient is reduced, and the operation time is saved.

Drawings

FIG. 1 is a schematic view of an appearance structure of a minimally invasive bending controllable surgical channel according to the utility model;

FIG. 2 is a schematic cross-sectional view of a minimally invasive curved steerable surgical tunnel according to the present invention;

FIG. 3 is an assembly view of a minimally invasive bend controllable surgical tunnel according to the present invention;

FIG. 4 is a schematic view of a partial cross-section of a minimally invasive curved steerable surgical tunnel according to the present invention;

FIG. 5 is a first schematic view of a partially assembled channel of a minimally invasive bend-controllable surgical channel according to the present invention;

FIG. 6 is a second schematic view of the minimally invasive bend controllable surgical access of the present invention partially assembled;

FIG. 7 is a schematic structural view of a minimally invasive curved steerable surgical access swivel ball according to the present invention;

FIG. 8 is a schematic cross-sectional view of a minimally invasive curved steerable surgical access swivel in accordance with the present invention;

FIG. 9 is a schematic cross-sectional view of a minimally invasive bend-controllable surgical access swivel in accordance with the present invention;

FIG. 10 is a schematic structural view of a rotary base for minimally invasive surgical access with controllable curvature according to the present invention;

FIG. 11 is a schematic cross-sectional view of a minimally invasive curved steerable surgical access control handle according to the present invention;

FIG. 12 is a schematic structural view of a minimally invasive bend controllable surgical access control handle according to the present invention;

FIG. 13 is a schematic structural view of a minimally invasive bend controllable surgical tunnel tearable dilator in accordance with the present invention;

in the figure: the device comprises a channel 1, a protective sleeve 11, an inner wire tube 12, a tip cap 13, an inner cone head 14, a semi-arc concave surface 141, a rigid channel 15, a flexible channel 16, a control line mounting hole 161, a spring type joint 162, a main body 2, an upper shell 21, a lower shell 22, a rotary ball 3, a ball seat 31, a contour cavity 311, a concave arc-shaped clamping position 312, a back-off clamping position 313, a ball head 32, a luer connector 33, a luer cap 34, an anti-reverse valve 35, a first clamping buckle 36, an inner tube 37, a rotary seat 4, a seat 41, a first control cavity 411, a circular cavity 413, a control point 42, a central cavity 421, a rivet 43, a control line 44, a control handle 5, a handle 51, a rotary main seat 52, a second control cavity 521, a second clamping buckle 522, a sealing sleeve 53, a second inner cavity 531, a tearable dilator 6, a dilator 61, a first inner cavity 611, a tearable opening 62 and a dilating cone 63.

Detailed Description

The utility model will be further elucidated with reference to the accompanying figures 1-13 and specific examples.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The minimally invasive bending controllable surgical channel with the structure as shown in fig. 1-13 comprises a channel 1, a main body 2, a rotary ball 3, a rotary seat 4 and a control handle 5, wherein the channel 1, the main body 2, the rotary ball 3, the rotary seat 4 and the control handle 5 are sequentially connected from left to right; the channel 1 comprises a protective sleeve 11, an inner wire pipe 12, a head cap 13, an inner conical head 14, a rigid channel 15 and a flexible channel 16, wherein 4 control wire mounting holes 161 are uniformly distributed on the circumference of the flexible channel 16, a spring type joint 162 is arranged at the left end of the flexible channel 16, the protective sleeve 11 is arranged on the outer surface of the spring type joint 162 of the flexible channel 16, and the inner wire pipe 12 is arranged in the spring type joint 161; the left end of the inner pipe 12 is expanded and turned outwards to cover the outer surface of the end cap 13, the inner conical head 14 is arranged between the outer wall of the inner pipe 12 and the inner wall of the end cap 13, and 4 semicircular arc-shaped concave surfaces 141 are uniformly distributed on the excircle of the inner conical head 14; the left end of the rigid channel 15 is arranged in the inner cavity of the flexible channel 16, the right end of the rigid channel 15 is arranged in the inner cavity of the rotary ball 3, and the left end of the rigid channel 15 is positioned on the left side of the inner wire pipe 12; the rotating seat 4 comprises a seat 41, control points 42, rivets 43 and control lines 44, wherein 4 first control cavities 411 are uniformly distributed on the circumference of the seat 41, a circular cavity 413 is arranged inside the seat 41, the circular cavity 413 is connected with the rotating ball 3, and the circular cavity 413 is used for an operation channel; control point 42 is the spheroid shape, 4 control point 42 is installed respectively in 4 first control chambeies 411, every control point 42 all is provided with center chamber 421, every rivet 43, 4 are all installed to center chamber 421 the right-hand member of control line 44 runs through rivet 43 inner chamber respectively and the left end runs through spin ball 3, 4 control line mounting hole 161, 4 semicircle form concave surface 141 respectively in proper order, merges with end cap 13 through semicircle form concave surface 141 and lets control line 44 extrude in semicircle form concave surface 141.

Furthermore, a tearable spreader 6 is included, said tearable spreader 6 being arranged at the left end of the tunnel 1 and being connected to the tunnel 1.

Further, the tearable dilator 6 comprises a dilator 61, a tearable opening 62 and a dilating cone 63, the dilator 61 is mounted on the periphery of the channel 1, the dilator 61 is provided with a first inner cavity 611, and the wall thickness of the tube body of the dilator 61 is between 0.1 mm and 0.2 mm; the tearable port 62 is arranged at the edge of the tube body of the dilator 61, and the width of the tearable port 62 is between 0.1 mm and 0.2 mm; the spreader cone 63 is disposed at the left end of the spreader 61.

In addition, the main body 2 is assembled by the upper shell 21 and the lower shell 22, and the surface of the main body 2 is provided with an arc-shaped contour 221 all around.

Further, the rotating ball 3 comprises a ball seat 31, a ball head 32, a luer joint 33, a luer cap 34 and an anti-reverse valve 35, wherein the ball seat 31 and the ball head 32 are connected in sequence from left to right; the left end circumference of the ball seat 31 is uniformly provided with 4 contour cavities 311, the middle circumference of the ball seat 31 is uniformly provided with 4 concave arc-shaped clamping positions 312, the right ends of the 4 control wires 44 respectively penetrate through the inner cavity of the rivet 43 and the left end respectively and sequentially penetrate through the 4 concave arc-shaped clamping positions 312, the 4 contour cavities 311, the 4 control wire mounting holes 161 and the 4 semi-arc-shaped concave surfaces 141; the bulb 32 is spherical, and hanging posts 321 are arranged at two ends of the bulb 32; the luer connector 33 is arranged on the ball seat 31 and is communicated with the inner cavity of the ball seat 31, the luer connector 33 is positioned at the right side of the contour cavity 311, and a luer cap 34 is arranged on the luer connector 33; an anti-reverse valve 35 is arranged in the middle cavity of the ball seat 31.

Further, the rotating ball 3 further comprises a first buckle 36 and an inner tube 37; the inner cavity of the right end of the ball seat 31 is provided with a reverse locking position 313, the first buckle 36 is arranged at the reverse locking position 313 of the inner cavity of the ball seat 31, the inner tube 37 is arranged at the center of the inner cavities of the ball seat 31 and the ball head 32, the right end of the inner tube 37 extends out of the ball head 32, and the left end of the inner tube 37 is arranged at the right side of the check valve 35 and is connected with the buckle 36.

Further, the control handle 5 comprises a handle 51, a main rotating seat 52 and a sealing sleeve 53, the left end of the handle 51 is connected with the main rotating seat 52, and the main rotating seat 52 is connected with the rotating seat 4; the circumference of the main rotating seat 52 is uniformly provided with 4 second control cavities 521 and 4 second buckles 522, the inside of the main rotating seat 52 is provided with a circular cavity structure, and the circular cavity structure is used for installing the ball head 32 and is used for an operation channel; the right end of the handle 51 is provided with a sealing sleeve 53, and the surgical instrument can play a role in sealing when entering from a second inner cavity 531 of the sealing sleeve 53.

Further, the protective sleeve 11 is made of an elastomer TPU or silica gel, the thickness of the protective sleeve 11 is 0.1-1.0mm, the inner conduit 12 is made of a special polymer material E-PTFE, the end cap 13 is made of a rigid stainless steel, the inner cone 14 is made of a rigid stainless steel, the rigid channel 15 is made of 304 stainless steel, the flexible channel 16 is made of PTFE, FEP, PE, PP, or TPU, the inner conduit 37 is made of medical PVC or silica gel, the control point 42 is made of 304 stainless steel, the rivet 43 is made of 304 stainless steel, the control line 44 is made of 304 high-strength steel wire, and the diameter of the control line 44 is 0.2-0.6 mm; the material of the sealing sleeve 55 is medical grade silica gel, and the hardness of the sealing sleeve 55 is 50-65A.

Examples

Based on the above structural basis, as shown in fig. 1-13.

The minimally invasive bending controllable operation channel is reasonable in structural design and has the function of adjusting the operation position and the operation angle of an operation instrument, the left end of the channel 1 is a flexible section due to the structural design of the channel 1, the right end of the channel 1 is a rigid section, control points 411 are uniformly distributed on the periphery of the rotating seat 4, the control points 411 extend from the rotating seat 4 to the rotating ball 3 and the left end of the channel 1, and the control handle 5 can control the upper part, the lower part, the left part and the right part according to the arrival position of the operation instrument, so that the use flexibility is improved, the minimally invasive bending controllable operation channel can be used in various minimally invasive surgical operations, and convenience is provided for doctors in abdominal cavity or thoracic cavity operations.

When the minimally invasive bending controllable operation channel is applied to laparoscopic surgery, only a small opening is required to be formed in the abdomen, the channel 1 of the minimally invasive bending controllable operation channel extends into the abdomen and is fixed, required surgical instruments enter the abdominal cavity from the control handle 5 and sequentially pass through the rotary seat 4, the rotary ball 3, the main body 2 and the channel 1, and then enter the abdominal cavity, when the control handle 5 is adjusted to enable the surgical instruments and the rotary seat 4 to rotate relatively, the rotary seat 4 can be pulled by the control line 44 through the flexible 180-degree rotation of the rotary ball 3, the channel 1 can be bent by 180 degrees through the control line 44, the position reached by the surgical instruments is controlled up, down, left and right, and a doctor can perform the abdominal operation.

Further, the device also comprises a tearable expander 6, wherein the tearable expander 6 is arranged at the left end of the channel 1 and connected with the channel 1. The tear dilator 6 is arranged, so that the wound protection and the wound expansion are facilitated, and the channel 1 can smoothly reach a focus. Passageway 1 gets into the abdominal cavity together through tearing expander 6, and after arriving the focus, expander 61 body border position is provided with can tear mouth 62, conveniently tears can tear mouth 62 and make and can tear expander 6 and directly withdraw from the abdominal cavity, can simplify the treatment step, avoids patient's secondary damage, reduces patient's misery, saves the operation time. The material of the dilator 61 may be one of PTFE, FEP, PE, PP, or TPU.

Further, the rotating ball 3 comprises a ball seat 31, a ball head 32, a luer connector 33, a luer cap 34 and an anti-reverse valve 35. The luer connector 33 is used for being connected with an inflation valve and then is connected with a pneumoperitoneum machine and other equipment, the pneumoperitoneum machine blows gas into an abdominal cavity through the luer connector 33 to form a pneumoperitoneum cavity, and then required surgical instruments and related auxiliary units penetrate into the abdominal cavity through the minimally invasive bending controllable surgical channel. Wherein the luer connector 33 may be a standard 6 to 100 locking connector, and the luer cap 34 may be a standard 6 to 100 locking cap. An anti-reflux valve 35 is provided to ensure that the air flow can pass through the channel and out the left end of the tearable spreader 6.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination between the embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the present invention.

Claims (8)

1. The minimally invasive bending controllable operation channel is characterized by comprising a channel (1), a main body (2), a rotary ball (3), a rotary seat (4) and a control handle (5), wherein the channel (1), the main body (2), the rotary ball (3), the rotary seat (4) and the control handle (5) are sequentially connected from left to right; the channel (1) comprises a protective sleeve (11), an inner wire pipe (12), a terminal cap (13), an inner conical head (14), a rigid channel (15) and a flexible channel (16), wherein 4 control wire mounting holes (161) are uniformly distributed on the circumference of the flexible channel (16), a spring type joint (162) is arranged at the left end of the flexible channel (16), the protective sleeve (11) is arranged on the outer surface of the spring type joint (162) of the flexible channel (16), and the inner wire pipe (12) is arranged in the spring type joint (162); the left end of the inner wire pipe (12) is expanded and turned outwards to cover the outer surface of the end cap (13), the inner conical head (14) is arranged between the outer wall of the inner wire pipe (12) and the inner wall of the end cap (13), and 4 semicircular arc-shaped concave surfaces (141) are uniformly distributed on the excircle of the inner conical head (14); the left end of the rigid channel (15) is arranged in the inner cavity of the flexible channel (16), the right end of the rigid channel is arranged in the inner cavity of the rotary ball (3), and the left end of the rigid channel (15) is positioned on the left side of the inner line pipe (12); the rotary seat (4) comprises a seat (41), control points (42), rivets (43) and control lines (44), wherein 4 control cavities (411) are uniformly distributed on the circumference of the seat (41), a circular cavity (413) is formed in the seat (41), the circular cavity (413) is connected with the rotary ball (3), and the circular cavity (413) is used for an operation channel; control point (42) are the spheroid shape, 4 control point (42) are installed respectively in 4 first control chamber (411), every control point (42) all are provided with center chamber (421), every rivet (43), 4 are all installed in center chamber (421) the right-hand member of control line (44) runs through rivet (43) inner chamber respectively and the left end runs through swivel ball (3), 4 control line mounting hole (161), 4 semicircle form concave surface (141) respectively in proper order, merges through semicircle form concave surface (141) and end cap (13) and lets control line (44) extrude in semicircle form concave surface (141).

2. The minimally invasive bend controllable surgical tunnel according to claim 1, further comprising a tearable dilator (6), wherein the tearable dilator (6) is arranged at the left end of the tunnel (1) and connected to the tunnel (1).

3. The minimally invasive curving controllable surgical channel according to claim 2, characterized in that the tearable dilator (6) comprises a dilator (61), a tearable opening (62), and a dilating cone (63), the dilator (61) is installed at the periphery of the channel (1), the dilator (61) is provided with a first inner cavity (611), and the wall thickness of the tube body of the dilator (61) is between 0.1 mm and 0.2 mm; the tearable opening (62) is arranged at the edge of the tube body of the expander (61), and the width of the tearable opening (62) is between 0.1 and 0.2 mm; the expansion cone (63) is arranged at the left end of the expander (61).

4. The minimally invasive curved controllable surgical tunnel according to claim 1, characterized in that the main body (2) is assembled by an upper shell (21) and a lower shell (22), and an arc-shaped contour (221) is arranged around the surface of the main body (2).

5. The minimally invasive curving controllable surgical channel according to claim 1, characterized in that the rotating ball (3) comprises a ball seat (31), a ball head (32), a luer connector (33), a luer cap (34), and an anti-reverse valve (35), wherein the ball seat (31) and the ball head (32) are connected in sequence from left to right; the left end circumference of the ball seat (31) is uniformly provided with 4 contour cavities (311), the middle circumference of the ball seat (31) is uniformly provided with 4 concave arc-shaped clamping positions (312), and the right ends of the 4 control wires (44) respectively penetrate through the inner cavity of the rivet (43) and the left end respectively and sequentially penetrate through the 4 concave arc-shaped clamping positions (312), the 4 contour cavities (311), the 4 control wire mounting holes (161) and the 4 semicircular concave surfaces (141); the ball head (32) is spherical, and hanging columns (321) are arranged at two ends of the ball head (32); the luer connector (33) is arranged on the ball seat (31) and is communicated with the inner cavity of the ball seat (31), the luer connector (33) is positioned at the right side of the contour cavity (311), and a luer cap (34) is arranged on the luer connector (33); an anti-return valve (35) is arranged in the cavity in the middle of the ball seat (31).

6. The minimally invasive curved controllable surgical tunnel according to claim 5, wherein the rotating ball (3) further comprises a first snap (36), an inner tube (37); the right-hand member inner chamber of ball seat (31) is provided with back-off screens (313), first buckle (36) are installed in back-off screens (313) department of ball seat (31) inner chamber, inner tube (37) set up in ball seat (31), bulb (32) inner chamber center department and bulb (32) are stretched out to the right-hand member of inner tube (37), the left end of inner tube (37) is located the right side of preventing contrary valve (35) and is connected with buckle (36).

7. The minimally invasive bending controllable surgical channel according to claim 6, wherein the control handle (5) comprises a handle (51), a main rotating seat (52) and a sealing sleeve (53), the left end of the handle (51) is connected with the main rotating seat (52), and the main rotating seat (52) is connected with the rotating seat (4); the circumference of the main rotating seat (52) is uniformly provided with 4 second control cavities (521) and 4 second buckles (522), the inside of the main rotating seat (52) is provided with a circular cavity structure, and the circular cavity structure is used for installing a ball head (32) and is used for an operation channel; a sealing sleeve (53) is installed at the right end of the handle (51), and a sealing effect can be achieved when surgical instruments enter from a second inner cavity (531) of the sealing sleeve (53).

8. The minimally invasive bending controllable surgical pathway according to claim 7, wherein the protective sheath (11) is made of elastomer TPU or silicone, the thickness of the protective sleeve (11) is 0.1-1.0mm, the inner line tube (12) is made of special high polymer material E-PTFE, the end cap (13) is made of rigid stainless steel, the inner conical head (14) is made of rigid stainless steel, the rigid channel (15) is made of 304 stainless steel, the flexible channel (16) is made of PTFE or FEP or PE or PP or TPU, the inner tube (37) is made of medical PVC or silica gel, the control point (42) is made of 304 stainless steel, the rivet (43) is made of 304 stainless steel, the control wire (44) is made of 304 high-strength steel wire, and the diameter of the control wire (44) is 0.2-0.6 mm; the material of seal cover (53) is medical grade silica gel to seal cover (53) hardness is 50-65A.

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